/* ========================
   CSS Variables & Reset
   ======================== */
:root {
  --bg: #1a1814;
  --bg2: #211e1a;
  --bg3: #2a2520;
  --border: #3a332a;
  --accent: #d4a847;
  --accent-light: #e8c06a;
  --accent-dim: #a07830;
  --green: #5ab878;
  --yellow: #e8a030;
  --red: #e06060;
  --text: #ede8df;
  --text2: #a09888;
  --text3: #6a6055;
  --card-radius: 12px;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-serif: 'Merriweather', Georgia, serif;
  --font-display: 'DM Serif Display', Georgia, serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
.hidden { display: none !important; }
html { scroll-behavior: smooth; overflow-x: hidden; }
img { max-width: 100%; height: auto; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ========================
   Navigation
   ======================== */
header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(15,15,19,0.92);
  backdrop-filter: blur(12px);
  z-index: 100;
}
.nav-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a {
  color: var(--text2);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--accent) !important;
  color: #1a1814 !important;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-weight: 700;
}

/* ========================
   Layout & Container
   ======================== */
main { flex: 1; }
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ========================
   Hero Section
   ======================== */
.hero {
  padding: 5rem 1.5rem 3rem;
  text-align: center;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: var(--text);
}
.hero-sub {
  color: var(--text2);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto 1.5rem;
}
.hero-badges { display: flex; gap: 0.6rem; justify-content: center; flex-wrap: wrap; }
.badge {
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 0.3rem 0.9rem;
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--text2);
}

/* ========================
   Content Sections
   ======================== */
.content-section {
  padding: 3rem 0;
}
.section-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
  color: var(--text);
}
.section-desc { color: var(--text2); font-size: 0.9rem; margin-bottom: 2rem; }

/* ========================
   Passage List (Home)
   ======================== */
.passage-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.2rem;
}
.day-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.4rem;
  transition: border-color 0.2s, transform 0.2s;
}
.day-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.day-card.locked { opacity: 0.65; }
.day-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.day-date { font-weight: 600; font-size: 0.95rem; }
.badge-free {
  background: rgba(74,222,128,0.15);
  color: var(--green);
  border: 1px solid rgba(74,222,128,0.3);
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-premium {
  background: rgba(251,191,36,0.1);
  color: var(--yellow);
  border: 1px solid rgba(251,191,36,0.2);
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.75rem;
}
.session-row {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
  font-size: 0.88rem;
}
.session-label {
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  color: var(--text3);
}
.passage-link { color: var(--text); text-decoration: none; line-height: 1.3; }
.passage-link:hover { color: var(--accent-light); text-decoration: underline; }
.passage-locked { color: var(--text3); }
.btn-read {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--accent-light);
  text-decoration: none;
  font-weight: 500;
}
.btn-read:hover { text-decoration: underline; }
.btn-upgrade {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--yellow);
  text-decoration: none;
}

/* ========================
   Vocabulary Grid (Home)
   ======================== */
.vocab-section { border-top: 1px solid var(--border); }
.vocab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}
.vocab-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
}
.vocab-word { font-weight: 700; font-size: 1rem; margin-bottom: 0.2rem; }
.vocab-pos { font-size: 0.75rem; color: var(--accent-light); margin-bottom: 0.4rem; }
.vocab-meaning { font-size: 0.85rem; color: var(--text2); margin-bottom: 0.5rem; }
.vocab-meta { font-size: 0.72rem; color: var(--text3); }

/* ========================
   CTA Section
   ======================== */
.cta-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-inner { text-align: center; padding: 1rem 0; }
.cta-inner h2 { font-size: 1.5rem; margin-bottom: 0.8rem; }
.cta-inner p { color: var(--text2); margin-bottom: 1.5rem; }
.cta-buttons { margin-bottom: 1.5rem; }
.bot-commands {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text2);
}
.bot-commands code {
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  color: var(--accent-light);
  font-size: 0.82rem;
}

/* ========================
   Buttons
   ======================== */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #1a1814;
  padding: 0.7rem 1.6rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: background 0.2s, transform 0.2s;
}
.btn-primary:hover { background: var(--accent-light); transform: translateY(-1px); }
.btn-secondary {
  display: inline-block;
  color: var(--accent-light);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}
.btn-secondary:hover { text-decoration: underline; }

/* ========================
   Passage Detail Page
   ======================== */
.passage-page { padding: 2rem 1.5rem; }
.breadcrumb { font-size: 0.85rem; color: var(--text3); margin-bottom: 1.5rem; }
.breadcrumb a { color: var(--accent-light); text-decoration: none; }
.page-title {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
  color: var(--text);
}
.session-tabs {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}
.tab-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 0.45rem 1rem;
  border-radius: 20px;
  text-decoration: none;
  font-size: 0.88rem;
  transition: all 0.2s;
}
.tab-btn:hover { border-color: var(--accent); color: var(--text); }
.passage-block {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 2rem;
  margin-bottom: 2rem;
  overflow: hidden;
  max-width: 100%;
}
.passage-block.empty { opacity: 0.5; }
.passage-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}
.passage-header h2 {
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.style-tag {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text3);
  background: var(--bg3);
  padding: 0.2rem 0.6rem;
  border-radius: 10px;
  border: 1px solid var(--border);
}
/* Passage Header Left (title + level badge) */
.ph-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.level-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(212,168,71,0.1);
  border: 1px solid rgba(212,168,71,0.25);
  padding: 0.18rem 0.55rem;
  border-radius: 8px;
  letter-spacing: 0.03em;
}

/* Passage Cover Image */
.passage-cover {
  margin-bottom: 1.75rem;
  overflow: hidden;
  border-radius: 10px;
  width: 100%;
}
.passage-cover img {
  width: 100%;
  max-width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  border-radius: 10px;
}

/* Category header color accents */
.passage-block[data-cat="news"] .passage-header       { border-top: 3px solid #3b82f6; border-bottom-color: rgba(59,130,246,0.2); }
.passage-block[data-cat="business"] .passage-header   { border-top: 3px solid #f59e0b; border-bottom-color: rgba(245,158,11,0.2); }
.passage-block[data-cat="conversation"] .passage-header{ border-top: 3px solid #10b981; border-bottom-color: rgba(16,185,129,0.2); }
.passage-block[data-cat="practical"] .passage-header  { border-top: 3px solid #ec4899; border-bottom-color: rgba(236,72,153,0.2); }
.passage-block[data-cat="economics"] .passage-header  { border-top: 3px solid #6366f1; border-bottom-color: rgba(99,102,241,0.2); }
.passage-block[data-cat="tech"] .passage-header       { border-top: 3px solid #06b6d4; border-bottom-color: rgba(6,182,212,0.2); }
.passage-block[data-cat="exam"] .passage-header       { border-top: 3px solid #f97316; border-bottom-color: rgba(249,115,22,0.2); }
.passage-block[data-cat="highschool"] .passage-header { border-top: 3px solid #84cc16; border-bottom-color: rgba(132,204,22,0.2); }
.passage-block[data-cat="basic"] .passage-header      { border-top: 3px solid #a78bfa; border-bottom-color: rgba(167,139,250,0.2); }

/* Session color accents */
.passage-block[data-cat="morning"] .passage-header    { border-top: 3px solid #fbbf24; }
.passage-block[data-cat="afternoon"] .passage-header  { border-top: 3px solid #fb923c; }
.passage-block[data-cat="evening"] .passage-header    { border-top: 3px solid #818cf8; }

/* YouTube embed */
.youtube-block {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.youtube-block h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}
.youtube-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  background: #000;
}
.youtube-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.passage-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  font-style: italic;
  margin-bottom: 1.2rem;
  line-height: 1.4;
  color: var(--text);
}
.passage-text {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.85;
  color: #d0d0e0;
}
.passage-text p { margin-bottom: 1rem; }
.passage-text blockquote.ko-translation {
  background: rgba(99, 179, 237, 0.07);
  border-left: 3px solid rgba(99, 179, 237, 0.4);
  border-radius: 0 6px 6px 0;
  padding: 0.75rem 1rem;
  margin: 0.25rem 0 1rem;
  color: #a8c4d8;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  line-height: 1.7;
}
.passage-text blockquote.ko-translation p { margin: 0; }
.btn-ko-toggle {
  display: inline-block;
  background: none;
  border: 1px solid rgba(99,179,237,0.3);
  color: rgba(99,179,237,0.7);
  font-size: 0.78rem;
  padding: 0.2rem 0.7rem;
  border-radius: 12px;
  cursor: pointer;
  margin: -0.5rem 0 0.5rem;
  transition: all 0.15s;
}
.btn-ko-toggle:hover { border-color: rgba(99,179,237,0.7); color: #63b3ed; }

/* TTS Controls */
.tts-controls {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.btn-tts {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}
.btn-tts:hover { border-color: var(--accent); color: var(--accent-light); }
.btn-tts.playing { border-color: var(--green); color: var(--green); }
.tts-hint { font-size: 0.8rem; color: var(--text3); }

/* Vocabulary Table */
.vocab-section-block {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.vocab-section-block h4,
.tip-block h4,
.quiz-block h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  color: var(--text2);
}
/* ── Vocab Table: 데스크탑 (테이블 형식) ── */
.vocab-table {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.vocab-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.vocab-table th {
  text-align: left;
  padding: 0.5rem 0.8rem;
  background: rgba(212,168,71,0.06);
  color: var(--text3);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.vocab-table td {
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--border);
  color: var(--text2);
  vertical-align: top;
  word-break: break-word;
  overflow-wrap: break-word;
}
.vocab-table tr:last-child td { border-bottom: none; }
.vocab-table td:first-child { font-weight: 700; color: var(--text); white-space: nowrap; }
.vocab-table td:nth-child(2) { white-space: nowrap; }
.vocab-table td:nth-child(4) { font-size: 0.83rem; color: var(--text3); }

/* ── Vocab Table: 모바일 (카드 레이아웃으로 전환) ── */
@media (max-width: 680px) {
  /* 테이블 구조 해제 → 블록으로 전환 */
  .vocab-table table,
  .vocab-table tbody,
  .vocab-table tr { display: block; width: 100%; }

  /* 헤더 행 숨김 */
  .vocab-table thead { display: none; }

  /* 각 행 → 단어 카드 */
  .vocab-table tr {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.75rem 0.9rem;
    margin-bottom: 0.55rem;
  }
  .vocab-table tr:last-child { margin-bottom: 0; }

  /* 모든 td 기본: block + border 제거 */
  .vocab-table td {
    display: block;
    padding: 0;
    border: none;
    white-space: normal;
    font-size: 0.85rem;
  }
  .vocab-table tr:last-child td { border-bottom: none; }

  /* 1번 칼럼(단어): 상단 굵게 */
  .vocab-table td:nth-child(1) {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.3rem;
    white-space: normal;
  }

  /* 2번(POS) + 3번(Korean): 한 줄에 나란히 */
  .vocab-table td:nth-child(2) {
    display: inline;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent);
    background: rgba(212,168,71,0.12);
    padding: 0.1rem 0.55rem;
    border-radius: 20px;
    margin-right: 0.5rem;
    white-space: nowrap;
  }
  .vocab-table td:nth-child(3) {
    display: inline;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text);
    word-break: keep-all;
  }

  /* 4번(English Definition): 다음 줄, 작고 연하게 */
  .vocab-table td:nth-child(4) {
    display: block;
    margin-top: 0.45rem;
    font-size: 0.78rem;
    color: var(--text3);
    line-height: 1.55;
    word-break: break-word;
    overflow-wrap: break-word;
  }
}

/* Expression Tip */
.tip-block {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.tip-content {
  background: rgba(212,168,71,0.05);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.2rem;
  border-radius: 0 8px 8px 0;
  font-size: 0.95rem;
  color: var(--text2);
}
.tip-content blockquote, .tip-content p { margin-bottom: 0.5rem; }
.tip-content strong { color: var(--accent); }

.speak-block {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.speak-content {
  background: rgba(99,179,237,0.06);
  border-left: 3px solid #63b3ed;
  padding: 1rem 1.2rem;
  border-radius: 0 8px 8px 0;
  font-size: 0.95rem;
  color: var(--text2);
}
.speak-content ol, .speak-content ul { padding-left: 1.2rem; margin: 0; }
.speak-content li { margin-bottom: 0.6rem; line-height: 1.6; }

/* Quiz Block */
.quiz-block {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.quiz-instruction { font-size: 0.9rem; color: var(--text2); margin-bottom: 1rem; }

/* ========================
   Vocabulary Full Page
   ======================== */
.vocab-page { padding: 2rem 1.5rem; }
.page-desc { color: var(--text2); margin-bottom: 2rem; }
.vocab-stats {
  display: flex;
  gap: 1.2rem;
  margin-bottom: 2rem;
}
.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.2rem 1.8rem;
  text-align: center;
}
.stat-num { font-size: 2rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 0.8rem; color: var(--text3); margin-top: 0.2rem; }
.vocab-filter {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.filter-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 0.4rem 1rem;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
}
.filter-btn.active, .filter-btn:hover {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(212,168,71,0.1);
}
.vocab-full-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.vocab-card-full {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.2rem;
  transition: border-color 0.2s;
}
.vocab-card-full:hover { border-color: var(--accent); }
.vocab-word-main { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.3rem; }
.vocab-pos-tag {
  display: inline-block;
  font-size: 0.72rem;
  background: rgba(212,168,71,0.12);
  color: var(--accent-light);
  padding: 0.15rem 0.5rem;
  border-radius: 8px;
  margin-bottom: 0.6rem;
}
.vocab-meaning-main { font-size: 0.9rem; color: var(--text2); margin-bottom: 0.8rem; }
.vocab-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
}
.vocab-date { color: var(--text3); }
.vocab-session-tag {
  padding: 0.15rem 0.5rem;
  border-radius: 8px;
  font-weight: 500;
}
.vocab-session-tag.morning { background: rgba(251,191,36,0.1); color: var(--yellow); }
.vocab-session-tag.afternoon { background: rgba(74,222,128,0.1); color: var(--green); }
.vocab-session-tag.evening { background: rgba(124,111,255,0.1); color: var(--accent-light); }

/* ========================
   Locked Page
   ======================== */
.locked-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 70vh;
  padding: 2rem;
}
.locked-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 3rem;
  text-align: center;
  max-width: 480px;
  width: 100%;
}
.lock-icon { font-size: 3rem; margin-bottom: 1rem; }
.locked-card h1 { font-size: 1.8rem; margin-bottom: 0.8rem; }
.locked-card p { color: var(--text2); margin-bottom: 0.5rem; }
.locked-sub { font-size: 0.88rem; color: var(--text3); margin-bottom: 2rem !important; }
.premium-features {
  margin-top: 2rem;
  text-align: left;
  background: var(--bg3);
  border-radius: 10px;
  padding: 1.2rem;
}
.premium-features h3 { font-size: 0.95rem; margin-bottom: 0.8rem; color: var(--text2); }
.premium-features ul { list-style: none; }
.premium-features li { font-size: 0.88rem; color: var(--text2); padding: 0.3rem 0; }

/* ========================
   Empty State
   ======================== */
.empty-state {
  text-align: center;
  color: var(--text3);
  padding: 4rem 1rem;
  font-size: 0.95rem;
}

/* ========================
   Footer
   ======================== */
footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  text-align: center;
}
.footer-inner p { font-size: 0.82rem; color: var(--text3); }

/* ========================
   Responsive
   ======================== */
@media (max-width: 640px) {
  .passage-list { grid-template-columns: 1fr; }
  .vocab-grid { grid-template-columns: repeat(2, 1fr); }
  .vocab-full-grid { grid-template-columns: repeat(2, 1fr); }
  .passage-block { padding: 1.2rem; }
  .passage-cover img { height: 180px; }
  .hero { padding: 3rem 1.5rem 2rem; }
}

/* ========================
   revievver Brand
   ======================== */
.logo-re  { color: var(--text); font-weight: 700; letter-spacing: -0.03em; }
.logo-vv  { color: var(--accent); font-weight: 700; letter-spacing: -0.03em; }
.logo-ver { color: var(--text2); font-weight: 400; letter-spacing: -0.03em; }
.nav-logo { font-size: 1.3rem; text-decoration: none; }
.nav-links a.active { color: var(--text); font-weight: 500; }
.nav-soon { position: relative; }
.soon-tag {
  font-size: 0.6rem;
  background: rgba(251,191,36,0.2);
  color: var(--yellow);
  padding: 0.1rem 0.35rem;
  border-radius: 6px;
  margin-left: 0.2rem;
  vertical-align: middle;
}
.footer-sub { font-size: 0.78rem; color: var(--text3); margin-top: 0.3rem; }

/* ========================
   Landing Hero
   ======================== */
.landing-hero {
  min-height: 38vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem 1.8rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.hero-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  opacity: 0.9;
}
.landing-h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 8vw, 4.5rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.4rem;
  color: var(--text);
}
.landing-tagline {
  font-size: 1rem;
  color: var(--text2);
  margin-bottom: 0.8rem;
  font-style: italic;
}
.landing-desc {
  font-size: 0.9rem;
  color: var(--text3);
  max-width: 480px;
  margin: 0 auto 1.6rem;
  line-height: 1.6;
}
.landing-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-ghost {
  display: inline-block;
  background: transparent;
  color: var(--text2);
  border: 1px solid var(--border);
  padding: 0.7rem 1.6rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.2s;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--text); }

/* ========================
   Topics Grid
   ======================== */
.topics-section { padding: 3rem 0; }
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.2rem;
  margin-top: 1.5rem;
}
.topic-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.8rem;
  text-decoration: none;
  color: var(--text);
  position: relative;
  transition: all 0.2s;
}
.topic-card.active-topic { border-color: var(--accent); }
.topic-card.active-topic:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(124,111,255,0.15); }
.topic-card.coming { opacity: 0.5; cursor: default; }
.topic-icon { font-size: 2rem; margin-bottom: 0.8rem; }
.topic-name { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.4rem; }
.topic-desc { font-size: 0.85rem; color: var(--text3); line-height: 1.5; }
.topic-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 10px;
  letter-spacing: 0.05em;
}
.topic-badge.live { background: rgba(74,222,128,0.15); color: var(--green); border: 1px solid rgba(74,222,128,0.3); }
.topic-badge.soon { background: rgba(251,191,36,0.1); color: var(--yellow); border: 1px solid rgba(251,191,36,0.2); }

/* ========================
   How It Works
   ======================== */
.how-it-works {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.step-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.5rem;
}
.step-num { font-size: 0.75rem; font-weight: 700; color: var(--accent); letter-spacing: 0.1em; margin-bottom: 0.6rem; }
.step-title { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.5rem; }
.step-desc { font-size: 0.83rem; color: var(--text3); line-height: 1.5; }

/* ========================
   Stats Bar
   ======================== */
.stats-bar {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
}
.stats-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-n { display: block; font-size: 1.8rem; font-weight: 700; color: var(--accent); }
.stat-l { font-size: 0.78rem; color: var(--text3); }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

/* ========================
   Quiz Page
   ======================== */
.quiz-page { padding: 2rem 1.5rem; }
.quiz-list { display: flex; flex-direction: column; gap: 1.5rem; margin-top: 1.5rem; }
.quiz-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.8rem;
  transition: border-color 0.2s;
}
.quiz-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.2rem;
}
.quiz-num {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-light);
}
.quiz-type-tag {
  font-size: 0.78rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 0.2rem 0.7rem;
  border-radius: 10px;
  color: var(--text3);
}
.quiz-passage {
  background: var(--bg3);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.2rem;
  border-radius: 0 8px 8px 0;
  margin-bottom: 1.2rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text2);
}
.passage-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-light);
  margin-bottom: 0.5rem;
}
.quiz-question {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 1.2rem;
  line-height: 1.6;
  color: var(--text);
}
.quiz-choices {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.choice-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 0.7rem 1rem;
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
  font-size: 0.92rem;
  transition: all 0.15s;
  width: 100%;
}
.choice-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--text); }
.choice-btn.selected-correct { border-color: var(--green); background: rgba(74,222,128,0.1); color: var(--green); }
.choice-btn.selected-wrong   { border-color: var(--red);   background: rgba(248,113,113,0.1); color: var(--red); }
.choice-btn.show-answer      { border-color: var(--green); color: var(--green); }
.choice-btn:disabled { cursor: default; }

.quiz-result {
  margin-top: 1.2rem;
  padding: 1rem 1.2rem;
  background: var(--bg3);
  border-radius: 8px;
  border: 1px solid var(--border);
}
.quiz-result.hidden { display: none; }
.result-badge { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.correct-badge { color: var(--green); display: none; }
.wrong-badge   { color: var(--red);   display: none; }
.quiz-result.is-correct .correct-badge { display: block; }
.quiz-result.is-wrong   .wrong-badge   { display: block; }
.result-answer { font-size: 0.88rem; color: var(--accent-light); margin-bottom: 0.6rem; font-weight: 600; }
.result-explanation { font-size: 0.9rem; color: var(--text2); line-height: 1.6; }

.quiz-nav {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

/* ========================
   Flashcards
   ======================== */
.exercise-block {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.exercise-block h4 { margin-bottom: 0.4rem; }

.flashcard-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 0.8rem;
}
.flashcard {
  width: 150px;
  height: 100px;
  perspective: 600px;
  cursor: pointer;
  flex-shrink: 0;
}
.fc-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transition: transform 0.45s;
  transform-style: preserve-3d;
}
.flashcard.flipped .fc-inner { transform: rotateY(180deg); }
.fc-front, .fc-back {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.75rem;
  text-align: center;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.fc-front {
  background: var(--bg2);
  border: 1px solid var(--border);
}
.fc-back {
  background: rgba(124,111,255,0.08);
  border: 1px solid var(--accent);
  transform: rotateY(180deg);
}
.fc-word { font-size: 1rem; font-weight: 700; color: var(--text); }
.fc-pron { font-size: 0.72rem; color: #7ec8e3; margin-top: 0.2rem; letter-spacing: 0.02em; }
.fc-pos  {
  font-size: 0.68rem;
  color: var(--accent-light);
  margin-top: 0.3rem;
  background: rgba(124,111,255,0.12);
  padding: 0.1rem 0.5rem;
  border-radius: 8px;
}
.fc-korean { font-size: 0.9rem; font-weight: 600; color: var(--text); }
.fc-english-def { font-size: 0.68rem; color: var(--text3); margin-top: 0.4rem; line-height: 1.4; }

/* ========================
   Definition Match (Practice)
   ======================== */
.practice-block { margin-top: 1.5rem; }

.practice-q {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  margin-bottom: 0.8rem;
  transition: border-color 0.2s;
}
.practice-prompt {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.8rem;
}
.pq-num {
  width: 24px; height: 24px;
  background: var(--bg3);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.72rem; font-weight: 700; color: var(--accent-light);
  flex-shrink: 0;
}
.pq-korean { font-size: 0.95rem; color: var(--text); font-weight: 500; }
.practice-choices { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.practice-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 0.4rem 1rem;
  border-radius: 7px;
  cursor: pointer;
  font-size: 0.88rem;
  font-family: var(--font-body);
  transition: all 0.15s;
}
.practice-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--text); }
.practice-btn.pc-correct          { border-color: var(--green); color: var(--green); background: rgba(74,222,128,0.07); }
.practice-btn.pc-selected-correct { border-color: var(--green); background: rgba(74,222,128,0.15); color: var(--green); font-weight: 600; }
.practice-btn.pc-selected-wrong   { border-color: var(--red);   background: rgba(248,113,113,0.15); color: var(--red); }
.practice-btn:disabled { cursor: default; }

.practice-result {
  margin-top: 0.8rem;
  padding: 0.6rem 0.9rem;
  background: var(--bg3);
  border-radius: 7px;
  font-size: 0.85rem;
}
.practice-result.hidden { display: none; }
.pr-correct, .pr-wrong { font-weight: 600; display: none; margin-bottom: 0.3rem; }
.pr-def { color: var(--text3); font-size: 0.82rem; line-height: 1.5; }
.practice-result.pr-is-correct .pr-correct { display: block; color: var(--green); }
.practice-result.pr-is-wrong   .pr-wrong   { display: block; color: var(--red); }

.nav-cta {
  display: inline-block;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

/* 모바일 네비게이션 */
@media (max-width: 540px) {
  .nav-links > a:not(.nav-cta) { display: none; }
  .nav-cta { padding: 0.35rem 0.85rem; font-size: 0.82rem; }
}

/* ========================
   Passage Jump Nav
   ======================== */
.session-jump {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.jump-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 0.35rem 0.9rem;
  border-radius: 20px;
  font-size: 0.83rem;
  text-decoration: none;
  transition: all 0.15s;
}
.jump-btn:hover { border-color: var(--accent); color: var(--text); }

/* ========================
   Daily Quiz (in passage page)
   ======================== */
.daily-quiz-section {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 2px solid var(--border);
}
.dquiz-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}
.dquiz-list { display: flex; flex-direction: column; gap: 1.4rem; }

.dquiz-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.6rem;
}
.dq-header { margin-bottom: 1rem; }
.dq-num {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-light);
  text-transform: uppercase;
}

.dq-passage {
  background: var(--bg3);
  border-left: 3px solid var(--accent);
  padding: 0.9rem 1.1rem;
  border-radius: 0 8px 8px 0;
  margin-bottom: 1.2rem;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--text2);
  font-family: var(--font-serif);
}
.dq-passage-label {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-light);
  margin-bottom: 0.5rem;
}
.dq-question {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.65;
  color: var(--text);
  margin-bottom: 1.1rem;
}

/* 선택지 */
.dq-choices { display: flex; flex-direction: column; gap: 0.55rem; margin-bottom: 1rem; }
.dq-choice {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  background: var(--bg3);
  border: 1.5px solid var(--border);
  color: var(--text2);
  padding: 0.7rem 1rem;
  border-radius: 9px;
  text-align: left;
  cursor: pointer;
  font-size: 0.92rem;
  font-family: var(--font-body);
  line-height: 1.5;
  transition: all 0.15s;
  width: 100%;
}
.dq-choice:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(124,111,255,0.04);
}
/* 원형 기호 */
.dq-sym {
  min-width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--text3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  flex-shrink: 0;
  transition: all 0.15s;
  color: var(--text3);
  background: transparent;
}
.dq-choice:hover:not(:disabled) .dq-sym {
  border-color: var(--accent);
  color: var(--accent-light);
}
/* 선택된 상태 */
.dq-choice.dq-selected {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(124,111,255,0.07);
}
.dq-choice.dq-selected .dq-sym {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}
/* 정답 확인 후 상태 */
.dq-choice.dc-correct {
  border-color: var(--green);
  color: var(--green);
}
.dq-choice.dc-correct .dq-sym {
  border-color: var(--green);
  background: var(--green);
  color: white;
}
.dq-choice.dc-selected-correct {
  border-color: var(--green);
  background: rgba(74,222,128,0.1);
  color: var(--green);
}
.dq-choice.dc-selected-wrong {
  border-color: var(--red);
  background: rgba(248,113,113,0.1);
  color: var(--red);
}
.dq-choice.dc-selected-wrong .dq-sym {
  border-color: var(--red);
  background: var(--red);
  color: white;
}
.dq-choice:disabled { cursor: default; }
.dq-choice-text { padding-top: 3px; }

/* 정답 확인 버튼 */
.btn-check-answer {
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.6rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-body);
  transition: opacity 0.2s, background 0.2s;
  margin-top: 0.2rem;
}
.btn-check-answer:disabled { opacity: 0.3; cursor: default; }
.btn-check-answer:not(:disabled):hover { opacity: 0.88; }
.btn-check-answer.btn-check-done-correct {
  background: var(--green);
  opacity: 1;
  cursor: default;
}
.btn-check-answer.btn-check-done-wrong {
  background: var(--red);
  opacity: 1;
  cursor: default;
}

/* 결과 박스 */
.dq-result {
  margin-top: 1rem;
  padding: 1rem 1.2rem;
  background: var(--bg3);
  border-radius: 9px;
  border: 1px solid var(--border);
}
.dq-result.hidden { display: none; }
.dqr-badge { margin-bottom: 0.6rem; }
.dqr-correct, .dqr-wrong {
  font-size: 0.95rem;
  font-weight: 700;
  display: none;
}
.dq-result.dqr-is-correct .dqr-correct { display: block; color: var(--green); }
.dq-result.dqr-is-wrong   .dqr-wrong   { display: block; color: var(--red); }
.dqr-explanation {
  font-size: 0.88rem;
  color: var(--text2);
  line-height: 1.65;
}

/* ── 퀴즈 진행 표시기 & 전체 확인 ─────────────────── */
.dquiz-submit-area {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.5rem;
  padding: 1.2rem 1.4rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  flex-wrap: wrap;
}
.dquiz-progress { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.dprog-item {
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text3);
  transition: all 0.2s;
}
.dprog-item.dprog-done {
  border-color: var(--accent);
  color: var(--accent-light);
  background: rgba(124,111,255,0.1);
}
.btn-quiz-submit {
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.65rem 1.6rem;
  border-radius: 9px;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font-body);
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
  white-space: nowrap;
}
.btn-quiz-submit:disabled { opacity: 0.3; cursor: default; }
.btn-quiz-submit.btn-submit-ready { animation: pulse-btn 1.5s ease-in-out 2; }
@keyframes pulse-btn {
  0%,100% { transform: scale(1); }
  50% { transform: scale(1.04); box-shadow: 0 0 16px rgba(124,111,255,0.4); }
}
.btn-quiz-submit:not(:disabled):hover { opacity: 0.88; }

/* 결과 요약 영역 */
.dquiz-results {
  margin-top: 1.5rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.8rem;
}
.dquiz-results.hidden { display: none; }
.dqrs-score {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: var(--text);
}
.dqrs-num { color: var(--accent-light); font-size: 2rem; }
.dqrs-pct { font-size: 1rem; margin-left: 0.5rem; }
.pct-perfect { color: var(--green); }
.pct-good    { color: var(--yellow); }
.pct-low     { color: var(--red); }

.btn-save-wrongs {
  margin-top: 1rem;
  background: var(--bg3);
  border: 1px solid var(--accent);
  color: var(--accent-light);
  padding: 0.65rem 1.4rem;
  border-radius: 9px;
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 600;
  font-family: var(--font-body);
  transition: all 0.2s;
}
.btn-save-wrongs:hover { background: rgba(124,111,255,0.1); }
.btn-save-wrongs:disabled { opacity: 0.6; cursor: default; }
.btn-save-wrongs.hidden { display: none; }

.dqr-login-hint {
  margin-top: 1rem;
  font-size: 0.88rem;
  color: var(--text3);
}
.dqr-login-hint a { color: var(--accent-light); text-decoration: underline; }
.dqr-login-hint.hidden { display: none; }

/* check-dot in question header */
.dq-check-dot {
  font-size: 0.78rem;
  color: var(--text3);
  margin-left: auto;
  transition: color 0.2s;
}

/* ========================
   User Menu (Nav)
   ======================== */
.user-menu { position: relative; }
.user-btn {
  display: flex; align-items: center; gap: 0.45rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.3rem 0.7rem 0.3rem 0.4rem;
  border-radius: 20px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.85rem;
  transition: border-color 0.2s;
}
.user-btn:hover { border-color: var(--accent); }
.user-avatar {
  width: 26px; height: 26px;
  border-radius: 50%;
  object-fit: cover;
}
.user-avatar-placeholder {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 700;
}
.user-name-short { font-weight: 500; }
.user-chevron { font-size: 0.65rem; color: var(--text3); }

.user-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 220px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  z-index: 500;
  overflow: hidden;
}
.user-dropdown.open { display: block; }
.user-dropdown-header {
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--border);
}
.udd-name  { font-weight: 600; font-size: 0.9rem; }
.udd-email { font-size: 0.78rem; color: var(--text3); margin-top: 0.2rem; }
.udd-badge {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.7rem;
  padding: 0.15rem 0.6rem;
  border-radius: 10px;
  font-weight: 600;
}
.udd-badge.premium { background: rgba(251,191,36,0.15); color: var(--yellow); }
.udd-badge.free    { background: var(--bg3); color: var(--text3); }
.udd-item {
  display: block;
  padding: 0.7rem 1.1rem;
  font-size: 0.88rem;
  color: var(--text2);
  text-decoration: none;
  transition: background 0.15s;
}
.udd-item:hover { background: var(--bg3); color: var(--text); }
.udd-logout { color: var(--red) !important; border-top: 1px solid var(--border); }

/* ========================
   Login Page
   ======================== */
.login-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.login-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  max-width: 420px;
  width: 100%;
  text-align: center;
}
.login-logo { font-size: 1.5rem; font-weight: 700; text-decoration: none; display: block; margin-bottom: 1.5rem; }
.login-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 0.8rem; }
.login-desc  { font-size: 0.9rem; color: var(--text2); line-height: 1.6; margin-bottom: 1.8rem; }
.login-error {
  background: rgba(248,113,113,0.1);
  border: 1px solid var(--red);
  color: var(--red);
  padding: 0.7rem 1rem;
  border-radius: 8px;
  font-size: 0.88rem;
  margin-bottom: 1.2rem;
}
.btn-google-login {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  background: white;
  color: #3c4043;
  border: 1px solid #dadce0;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: box-shadow 0.2s;
  font-family: var(--font-body);
}
.btn-google-login:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.2); }
.google-icon { flex-shrink: 0; }
.login-note { font-size: 0.8rem; color: var(--text3); margin-top: 1.5rem; line-height: 1.5; }

/* ========================
   Notebook Page
   ======================== */
.notebook-page { padding: 2rem 1.5rem; }
.nb-header {
  display: flex; align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.nb-stats { text-align: right; }
.nb-count { font-size: 2rem; font-weight: 700; color: var(--accent-light); display: block; }
.nb-count-label { font-size: 0.78rem; color: var(--text3); }
.nb-empty { text-align: center; padding: 4rem 1rem; }
.nb-empty-icon { font-size: 3rem; margin-bottom: 1rem; }
.nb-empty p { color: var(--text2); font-size: 1rem; }
.nb-empty-sub { font-size: 0.85rem; color: var(--text3); margin-top: 0.5rem; }

.nb-list { display: flex; flex-direction: column; gap: 1rem; }
.nb-item {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.4rem;
  position: relative;
}
.nbi-meta {
  display: flex; align-items: center; gap: 0.6rem;
  margin-bottom: 0.8rem;
}
.nbi-date { font-size: 0.78rem; color: var(--text3); }
.nbi-qnum {
  font-size: 0.72rem; font-weight: 700;
  color: var(--accent-light);
  background: rgba(124,111,255,0.1);
  padding: 0.1rem 0.5rem;
  border-radius: 8px;
}
.nbi-delete {
  margin-left: auto;
  background: none; border: none;
  color: var(--text3); cursor: pointer;
  font-size: 0.9rem; padding: 0.2rem 0.4rem;
  transition: color 0.15s;
}
.nbi-delete:hover { color: var(--red); }
.nbi-question { font-size: 0.95rem; font-weight: 500; color: var(--text); margin-bottom: 0.8rem; line-height: 1.55; }
.nbi-answers {
  display: flex; gap: 1.5rem;
  margin-bottom: 0.8rem;
  font-size: 0.85rem;
}
.wrong-ans   { color: var(--red); }
.correct-ans { color: var(--green); }
.nbi-choices { margin-bottom: 0.8rem; display: flex; flex-direction: column; gap: 0.35rem; }
.nbi-choice {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: 0.85rem; color: var(--text3);
  padding: 0.25rem 0;
}
.nbi-choice.is-correct { color: var(--green); font-weight: 600; }
.nbi-choice.is-wrong   { color: var(--red); }
.nbi-sym {
  width: 22px; height: 22px; border-radius: 50%;
  border: 1.5px solid currentColor;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.72rem; flex-shrink: 0;
}
.nbi-explanation {
  font-size: 0.85rem; color: var(--text2);
  background: var(--bg3);
  border-left: 3px solid var(--accent);
  padding: 0.6rem 0.9rem;
  border-radius: 0 8px 8px 0;
  line-height: 1.55;
  margin-bottom: 0.8rem;
}
.nbi-link { font-size: 0.82rem; color: var(--accent-light); text-decoration: none; }
.nbi-link:hover { text-decoration: underline; }

/* ========================
   Settings Page
   ======================== */
.settings-page { padding: 2rem 1.5rem; }
.settings-section {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.8rem;
  margin-bottom: 1.5rem;
}
.ss-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.8rem; }
.ss-desc  { font-size: 0.88rem; color: var(--text2); margin-bottom: 1.2rem; }
.ss-premium-gate {
  background: rgba(251,191,36,0.08);
  border: 1px solid rgba(251,191,36,0.25);
  color: var(--yellow);
  padding: 0.7rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 1.2rem;
}
.plan-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.plan-card {
  background: var(--bg3);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 1.4rem;
}
.plan-card.plan-active { border-color: var(--accent); }
.plan-card.plan-premium.plan-active { border-color: var(--yellow); }
.plan-name { font-size: 1rem; font-weight: 700; margin-bottom: 0.3rem; }
.plan-desc { font-size: 0.78rem; color: var(--text3); margin-bottom: 0.8rem; }
.plan-features { list-style: none; padding: 0; margin-bottom: 1rem; }
.plan-features li { font-size: 0.82rem; color: var(--text2); padding: 0.2rem 0; }
.plan-current { font-size: 0.8rem; color: var(--green); font-weight: 600; }
.btn-activate-premium {
  background: var(--yellow);
  color: #0f0f13;
  border: none;
  padding: 0.5rem 1.1rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: var(--font-body);
  transition: opacity 0.2s;
}
.btn-activate-premium:hover { opacity: 0.85; }

.form-grid { display: grid; gap: 1.2rem; margin-bottom: 1.2rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-label { font-size: 0.88rem; font-weight: 600; color: var(--text); display: flex; align-items: center; gap: 0.4rem; }
.form-input {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.2s;
}
.form-input:focus { border-color: var(--accent); }
.form-input:disabled { opacity: 0.4; cursor: default; }
.form-hint { font-size: 0.75rem; color: var(--text3); }
.form-hint a { color: var(--accent-light); }
.form-disabled { opacity: 0.6; pointer-events: none; }
.time-checks { display: flex; flex-direction: column; gap: 0.6rem; }
.time-check {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: 0.88rem; color: var(--text2);
  cursor: pointer;
}
.time-check input { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }
.btn-save-settings {
  background: var(--accent);
  color: white; border: none;
  padding: 0.6rem 1.5rem;
  border-radius: 9px;
  cursor: pointer;
  font-size: 0.9rem; font-weight: 600;
  font-family: var(--font-body);
  transition: opacity 0.2s;
}
.btn-save-settings:hover { opacity: 0.88; }
.save-status { margin-left: 0.8rem; font-size: 0.85rem; }
.saved-ok  { color: var(--green); }
.saved-err { color: var(--red); }
.messenger-icon { font-size: 1rem; }

/* ========================
   Quiz List Section (index)
   ======================== */
.quiz-list-section { border-top: 1px solid var(--border); padding-top: 2.5rem; }
.ql-header {
  display: flex; align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  flex-wrap: wrap; gap: 1rem;
}
.btn-quiz-go {
  background: var(--accent);
  color: white;
  padding: 0.45rem 1.1rem;
  border-radius: 20px;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: opacity 0.2s;
}
.btn-quiz-go:hover { opacity: 0.85; }
.ql-list { display: flex; flex-direction: column; gap: 0; margin-top: 1rem; }
.ql-row {
  display: flex; align-items: center; gap: 0.8rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.ql-row:last-child { border-bottom: none; }
.ql-locked { opacity: 0.5; }
.ql-date { color: var(--text); font-weight: 500; width: 110px; flex-shrink: 0; }
.ql-count { color: var(--text3); font-size: 0.82rem; width: 50px; }
.ql-badge {
  font-size: 0.7rem; font-weight: 700;
  padding: 0.15rem 0.5rem; border-radius: 8px;
}
.ql-badge.free   { background: rgba(74,222,128,0.12); color: var(--green); }
.ql-badge.locked { background: var(--bg3); color: var(--text3); }
.ql-link {
  margin-left: auto;
  color: var(--accent-light);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
}
.ql-link:hover { text-decoration: underline; }
.ql-link-disabled { margin-left: auto; color: var(--text3); font-size: 0.82rem; }

/* ========================
   hero-cta-row (index)
   ======================== */
.hero-cta-row {
  display: flex; gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}
.btn-disabled { opacity: 0.45; cursor: default; pointer-events: none; }

/* ========================
   Responsive
   ======================== */
@media (max-width: 640px) {
  .session-jump { gap: 0.4rem; }
  .dquiz-card { padding: 1.2rem; }
  .plan-cards { grid-template-columns: 1fr; }
  .dquiz-submit-area { flex-direction: column; align-items: flex-start; }
  .btn-quiz-submit { width: 100%; }
  .nb-header { flex-direction: column; }
}

/* ========================
   Premium Banner (home)
   ======================== */
.premium-banner-section { padding: 0.5rem 0 1rem; }
.premium-banner {
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  background: linear-gradient(135deg, rgba(212,168,71,0.1), rgba(212,168,71,0.04));
  border: 1px solid rgba(212,168,71,0.3);
  border-radius: var(--card-radius);
  padding: 1.1rem 1.5rem;
  flex-wrap: wrap;
}
.pb-left { display: flex; align-items: center; gap: 1rem; }
.pb-star { font-size: 1.8rem; }
.pb-title { font-weight: 700; font-size: 1rem; color: var(--accent); }
.pb-desc  { font-size: 0.85rem; color: var(--text2); margin-top: 0.2rem; }
.btn-premium-activate {
  background: var(--accent); color: #1a1814;
  border: none; border-radius: 8px;
  padding: 0.6rem 1.3rem; font-size: 0.9rem; font-weight: 700;
  cursor: pointer; white-space: nowrap;
  text-decoration: none; display: inline-block;
  transition: background 0.15s;
}
.btn-premium-activate:hover { background: var(--accent-light); }

/* ========================
   Premium Section (how-it-works 아래)
   ======================== */
.premium-section { padding: 3rem 0; }
.premium-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.2rem;
  margin-top: 1.5rem;
}
.pf-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.4rem 1.2rem;
  display: flex; flex-direction: column; gap: 0.5rem;
}
.pf-card-cta {
  border-color: rgba(212,168,71,0.35);
  background: linear-gradient(135deg, rgba(212,168,71,0.07), var(--bg2));
}
.pf-icon  { font-size: 1.8rem; }
.pf-title { font-weight: 700; font-size: 0.95rem; }
.pf-desc  { font-size: 0.83rem; color: var(--text2); line-height: 1.5; }
.pf-activated { color: var(--green); font-size: 0.88rem; font-weight: 600; margin-top: 0.5rem; }

/* ========================
   How-it-works extras
   ======================== */
.step-messenger-icons { font-size: 0.82rem; color: var(--text2); }
.step-premium-tag {
  font-size: 0.72rem; font-weight: 700;
  background: rgba(212,168,71,0.15); color: var(--accent);
  padding: 0.1rem 0.4rem; border-radius: 6px;
  vertical-align: middle;
}

/* ========================
   Premium Modal
   ======================== */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.7); z-index: 1000;
  align-items: center; justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2rem 2rem 1.8rem;
  width: 100%; max-width: 480px;
  position: relative;
  max-height: 90vh; overflow-y: auto;
}
.modal-close {
  position: absolute; top: 1rem; right: 1rem;
  background: none; border: none;
  color: var(--text2); font-size: 1.1rem;
  cursor: pointer; padding: 0.25rem 0.5rem;
}
.modal-close:hover { color: var(--text); }
.modal-step { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 0.8rem; }
.modal-icon  { font-size: 2.5rem; }
.modal-title { font-size: 1.3rem; font-weight: 700; }
.modal-desc  { font-size: 0.88rem; color: var(--text2); line-height: 1.5; }
.modal-input {
  width: 100%; padding: 0.7rem 1rem;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text);
  font-size: 1rem; text-align: center;
  letter-spacing: 0.2em;
}
.modal-input:focus { outline: none; border-color: var(--accent); }
.modal-btn { width: 100%; margin-top: 0.5rem; padding: 0.75rem; font-size: 1rem; }
.modal-error { color: var(--red); font-size: 0.85rem; }
.modal-form { width: 100%; text-align: left; display: flex; flex-direction: column; gap: 1rem; }
.mf-group { display: flex; flex-direction: column; gap: 0.3rem; }
.mf-label { font-size: 0.85rem; font-weight: 600; color: var(--text2); }
.modal-form .modal-input { text-align: left; letter-spacing: 0; font-size: 0.88rem; }
.mf-hint  { font-size: 0.75rem; color: var(--text3); }
.mf-hint a { color: var(--accent-light); }
.mf-checks { display: flex; flex-direction: column; gap: 0.4rem; }
.mf-check {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.88rem; cursor: pointer;
}
.mf-check input { accent-color: var(--accent); width: 15px; height: 15px; }
.mf-skip-note { font-size: 0.78rem; color: var(--text3); text-align: center; }

/* ========================
   Upgrade Page
   ======================== */
.upgrade-page { padding: 3rem 1rem; display: flex; justify-content: center; }
.upgrade-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 18px; padding: 2.5rem 2rem;
  width: 100%; max-width: 520px;
}
.upg-step { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.upg-icon  { font-size: 3rem; }
.upg-title { font-size: 1.5rem; font-weight: 700; text-align: center; }
.upg-desc  { font-size: 0.9rem; color: var(--text2); text-align: center; line-height: 1.6; }
.upg-input {
  width: 100%; padding: 0.8rem 1rem;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 1.2rem;
  text-align: center; letter-spacing: 0.3em;
}
.upg-input:focus { outline: none; border-color: var(--accent); }
.upg-btn   { width: 100%; padding: 0.8rem; font-size: 1rem; margin-top: 0.3rem; }
.upg-back  { font-size: 0.85rem; color: var(--text3); text-decoration: none; margin-top: 0.3rem; }
.upg-back:hover { color: var(--text2); }
.upg-error { color: var(--red); font-size: 0.85rem; }

/* Messenger blocks */
.messenger-block {
  width: 100%;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.2rem 1.2rem 1rem;
  margin-top: 0.8rem;
}
.mb-header { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.8rem; }
.mb-icon   { font-size: 1.3rem; }
.mb-name   { font-weight: 600; font-size: 0.95rem; flex: 1; }
.mb-badge  { font-size: 0.8rem; font-weight: 700; color: var(--green); }
.mb-badge.verified { color: var(--green); }
.mb-hint   { font-size: 0.78rem; color: var(--text3); margin-bottom: 0.6rem; }
.mb-hint a { color: var(--accent-light); }
.mb-row, .mb-code-row {
  display: flex; gap: 0.5rem; align-items: center;
  margin-bottom: 0.4rem;
}
.upg-input-sm {
  flex: 1; padding: 0.55rem 0.8rem;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 7px; color: var(--text); font-size: 0.88rem;
}
.upg-input-sm:focus { outline: none; border-color: var(--accent); }
.mb-error  { font-size: 0.8rem; color: var(--red); margin-top: 0.3rem; }

/* ========================
   Settings — Messenger Verify
   ======================== */
.sv-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 0; border-bottom: 1px solid var(--border); gap: 1rem;
}
.sv-row:last-of-type { border-bottom: none; }
.sv-left { display: flex; align-items: center; gap: 0.8rem; }
.sv-icon { font-size: 1.4rem; }
.sv-name { font-weight: 600; font-size: 0.92rem; }
.sv-value { font-size: 0.8rem; color: var(--text3); margin-top: 0.2rem; }
.sv-value.none { color: var(--text3); font-style: italic; }
.sv-badge { font-size: 0.75rem; font-weight: 700; padding: 0.1rem 0.4rem; border-radius: 5px; margin-left: 0.4rem; }
.sv-badge:not(.unverified) { background: rgba(74,222,128,0.12); color: var(--green); }
.sv-badge.unverified { background: var(--bg3); color: var(--text3); }
.sv-right { flex-shrink: 0; }
.sv-form {
  background: var(--bg3); border-radius: 10px;
  padding: 1rem 1.2rem; margin-bottom: 0.8rem;
}
.sv-hint   { font-size: 0.78rem; color: var(--text3); margin-bottom: 0.6rem; }
.sv-hint a { color: var(--accent-light); }
.sv-input-row { display: flex; gap: 0.5rem; margin-bottom: 0.4rem; }
.sv-input  {
  flex: 1; padding: 0.55rem 0.8rem;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 7px; color: var(--text); font-size: 0.88rem;
}
.sv-input:focus { outline: none; border-color: var(--accent); }
.sv-error  { font-size: 0.8rem; color: var(--red); margin-top: 0.3rem; }
.btn-verify {
  padding: 0.5rem 0.9rem; font-size: 0.82rem; font-weight: 600;
  background: var(--accent); color: #1a1814; border: none;
  border-radius: 7px; cursor: pointer; white-space: nowrap;
  transition: background 0.15s;
}
.btn-verify:hover { background: var(--accent-light); }
.btn-connect {
  padding: 0.45rem 0.9rem; font-size: 0.82rem; font-weight: 600;
  background: rgba(212,168,71,0.12); color: var(--accent);
  border: 1px solid rgba(212,168,71,0.3); border-radius: 7px;
  cursor: pointer; transition: background 0.15s;
}
.btn-connect:hover { background: rgba(212,168,71,0.22); }
.btn-disconnect {
  padding: 0.45rem 0.9rem; font-size: 0.82rem; font-weight: 600;
  background: rgba(248,113,113,0.1); color: var(--red);
  border: 1px solid rgba(248,113,113,0.3); border-radius: 7px;
  cursor: pointer;
}
.btn-activate-premium {
  display: inline-block; margin-top: 0.8rem;
  background: var(--accent); color: #1a1814;
  padding: 0.6rem 1.4rem; border-radius: 8px;
  font-size: 0.9rem; font-weight: 700;
  text-decoration: none; transition: background 0.15s;
}
.btn-activate-premium:hover { background: var(--accent-light); }

/* Nav dropdown upgrade link */
.udd-upgrade {
  color: var(--accent) !important;
  font-weight: 700;
}
.udd-upgrade:hover { background: rgba(212,168,71,0.1) !important; }

/* ========================
   Upgrade flow — 2-step confirm
   ======================== */
.upg-verified {
  width: 100%;
  background: rgba(74,222,128,0.08);
  border: 1px solid rgba(74,222,128,0.3);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  display: flex; flex-direction: column; align-items: center; gap: 0.6rem;
  text-align: center;
}
.upg-ok-badge {
  font-size: 1rem; font-weight: 700; color: var(--green);
}
.upg-confirm-desc {
  font-size: 0.85rem; color: var(--text2);
}
.upg-btn-confirm {
  background: var(--green) !important;
  color: #0f0f13 !important;
  font-weight: 800;
}

/* ========================
   링크 색상 가시성 강화
   ======================== */
.mb-hint a,
.sv-hint a {
  color: #a89eff !important;
  text-decoration: underline;
}
.mb-hint a:hover,
.sv-hint a:hover {
  color: #c4baff !important;
}

/* ========================
   Admin Page — 전면 개편
   ======================== */
.admin-page { padding: 2rem 1rem; max-width: 960px; margin: 0 auto; }

.adm-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 2rem; flex-wrap: wrap; gap: 0.5rem;
}
.adm-title   { font-size: 1.6rem; font-weight: 700; margin: 0; }
.adm-subtitle { font-size: 0.85rem; color: var(--text3); margin-top: 0.2rem; }
.adm-date    { font-size: 0.82rem; color: var(--text3); padding-top: 0.4rem; }

/* 통계 카드 */
.adm-stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem; margin-bottom: 2rem;
}
.adm-stat-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 14px; padding: 1.2rem 1rem;
  display: flex; align-items: center; gap: 0.9rem;
}
.adm-stat-premium { border-color: rgba(212,168,71,0.35); }
.adm-stat-icon  { font-size: 1.6rem; }
.adm-stat-num   { font-size: 1.8rem; font-weight: 800; color: var(--accent); line-height: 1; }
.adm-stat-label { font-size: 0.76rem; color: var(--text3); margin-top: 0.25rem; }

/* 섹션 */
.adm-section {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 16px; padding: 1.8rem;
  margin-bottom: 1.5rem;
}
.adm-section-head {
  margin-bottom: 1.2rem;
}
.adm-section-title { font-size: 1.05rem; font-weight: 700; margin: 0 0 0.3rem; }
.adm-section-desc  { font-size: 0.82rem; color: var(--text3); }
.adm-count-badge {
  font-size: 0.78rem; font-weight: 700;
  background: rgba(212,168,71,0.12); color: var(--accent);
  padding: 0.2rem 0.7rem; border-radius: 20px;
  margin-left: 0.6rem; vertical-align: middle;
}

/* 발송 그리드 */
.adm-send-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1rem; margin-bottom: 1.2rem;
}
.adm-send-card {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 12px; padding: 1rem 1.1rem;
}
.adm-send-session { font-weight: 700; font-size: 0.92rem; margin-bottom: 0.8rem; }
.adm-send-btns { display: flex; flex-direction: column; gap: 0.4rem; }
.btn-send-tg, .btn-send-dc, .btn-send-im {
  padding: 0.5rem 0.8rem; font-size: 0.82rem; font-weight: 600;
  border: none; border-radius: 7px; cursor: pointer; text-align: left;
  transition: opacity 0.15s;
}
.btn-send-tg { background: rgba(36,161,222,0.15); color: #24a1de; }
.btn-send-dc { background: rgba(88,101,242,0.15); color: #7289da; }
.btn-send-im { background: rgba(74,222,128,0.12); color: var(--green); }
.btn-send-tg:hover, .btn-send-dc:hover, .btn-send-im:hover { opacity: 0.75; }

.adm-send-result {
  padding: 0.8rem 1rem; border-radius: 10px;
  font-size: 0.88rem; margin-bottom: 1rem;
}
.result-ok  { background: rgba(74,222,128,0.08); color: var(--green); border: 1px solid rgba(74,222,128,0.2); }
.result-err { background: rgba(248,113,113,0.08); color: var(--red);   border: 1px solid rgba(248,113,113,0.2); }

.adm-custom-send { border-top: 1px solid var(--border); padding-top: 1.2rem; margin-top: 0.5rem; }
.adm-custom-title { font-size: 0.88rem; font-weight: 600; color: var(--text2); margin: 0 0 0.6rem; }
.adm-textarea {
  width: 100%; padding: 0.7rem 0.9rem;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 0.88rem;
  resize: vertical; margin-bottom: 0.6rem;
}
.adm-textarea:focus { outline: none; border-color: var(--accent); }
.adm-custom-btns { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* 유저 목록 */
.adm-user-list { display: flex; flex-direction: column; gap: 0; }
.adm-user-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}
.adm-user-row:last-child { border-bottom: none; }

.adm-user-info { display: flex; align-items: center; gap: 0.8rem; }
.adm-user-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.95rem; color: #fff;
  flex-shrink: 0;
}
.adm-user-name  { font-weight: 600; font-size: 0.9rem; }
.adm-user-email { font-size: 0.76rem; color: var(--text3); }
.adm-tag {
  font-size: 0.7rem; font-weight: 700;
  padding: 0.15rem 0.5rem; border-radius: 6px;
  margin-left: 0.5rem; white-space: nowrap;
}
.adm-tag.premium { background: rgba(212,168,71,0.15); color: var(--accent); }
.adm-tag.free    { background: var(--bg3); color: var(--text3); }

.adm-user-messengers { display: flex; flex-direction: column; gap: 0.35rem; min-width: 200px; }
.adm-messenger-item {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem;
}
.adm-messenger-item.verified .adm-messenger-val { color: var(--text); }
.adm-messenger-item.unverified { opacity: 0.4; }
.adm-messenger-icon { font-size: 0.9rem; }
.adm-messenger-val  { font-size: 0.78rem; color: var(--text2); flex: 1; }
.adm-messenger-none { font-size: 0.76rem; color: var(--text3); font-style: italic; }

.btn-adm-test {
  padding: 0.2rem 0.55rem; font-size: 0.72rem; font-weight: 700;
  background: rgba(212,168,71,0.12); color: var(--accent);
  border: 1px solid rgba(212,168,71,0.3); border-radius: 5px;
  cursor: pointer; flex-shrink: 0;
}
.btn-adm-test:hover { background: rgba(212,168,71,0.22); }

.adm-user-times { display: flex; flex-direction: column; gap: 0.3rem; }
.adm-time-badge {
  font-size: 0.72rem; padding: 0.15rem 0.5rem;
  border-radius: 6px; white-space: nowrap;
}
.adm-time-badge.on  { background: rgba(74,222,128,0.12); color: var(--green); }
.adm-time-badge.off { background: var(--bg3); color: var(--text3); opacity: 0.5; }

/* 토스트 */
.adm-toast {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%);
  padding: 0.75rem 1.5rem; border-radius: 10px;
  font-size: 0.9rem; font-weight: 600; z-index: 9999;
  pointer-events: none; transition: opacity 0.3s;
}
.toast-ok  { background: rgba(74,222,128,0.9); color: #0f0f13; }
.toast-err { background: rgba(248,113,113,0.9); color: #fff; }

.adm-empty { color: var(--text3); text-align: center; padding: 3rem; font-size: 0.9rem; }

/* 구독자 테이블 */
.adm-table-wrap {
  overflow-x: auto;
  margin-top: 1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.adm-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  min-width: 700px;
}
.adm-table thead tr {
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}
.adm-table th {
  padding: 0.7rem 1rem;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text3);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.adm-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  vertical-align: middle;
}
.adm-table tbody tr:last-child td { border-bottom: none; }
.adm-table tbody tr:hover { background: rgba(255,255,255,0.02); }
.adm-td-num { color: var(--text3); font-size: 0.78rem; width: 36px; }

.adm-tbl-user { display: flex; align-items: center; gap: 0.65rem; }
.adm-tbl-messenger { display: flex; align-items: center; gap: 0.4rem; }
.adm-tbl-val { font-size: 0.78rem; color: var(--text2); }
.adm-tbl-none { font-size: 0.75rem; color: var(--text3); opacity: 0.5; font-style: italic; }
.adm-tbl-times { display: flex; gap: 0.25rem; }

@media (max-width: 768px) {
  .adm-stats-grid { grid-template-columns: repeat(3, 1fr); }
  .adm-send-grid  { grid-template-columns: 1fr; }
}

/* ========================
   English Page (index.ejs)
   ======================== */
.ep-wrap { padding: 2rem 1.5rem 4rem; }

.ep-page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 1rem; margin-bottom: 2rem; flex-wrap: wrap;
}
.ep-page-title { font-family: var(--font-display); font-size: 1.7rem; font-weight: 400; margin: 0 0 0.3rem; letter-spacing: -0.01em; }
.ep-page-sub   { color: var(--text3); font-size: 0.88rem; margin: 0; }
.ep-header-btns { display: flex; gap: 0.5rem; flex-shrink: 0; padding-top: 0.3rem; }

/* Featured (최신) */
.ep-featured {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 16px; padding: 1.5rem; margin-bottom: 2.5rem;
}
.ep-featured-label {
  display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1.2rem;
}
.ep-date-chip {
  font-size: 0.82rem; font-weight: 600; color: var(--text2);
  background: var(--bg3); border: 1px solid var(--border);
  padding: 0.2rem 0.7rem; border-radius: 20px;
}
.badge-free {
  font-size: 0.7rem; font-weight: 700;
  background: rgba(74,222,128,0.15); color: var(--green);
  border: 1px solid rgba(74,222,128,0.3);
  padding: 0.15rem 0.6rem; border-radius: 20px;
}
.ep-session-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1rem; margin-bottom: 1.2rem;
}
.ep-session-card {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.1rem;
  display: flex; flex-direction: column; gap: 0.5rem;
}
.ep-session-card.empty { opacity: 0.5; }
.ep-session-tag {
  font-size: 0.78rem; font-weight: 700; color: var(--accent);
  display: flex; align-items: center; gap: 0.3rem; flex-wrap: wrap;
}
.ep-style-label { color: var(--text3); font-weight: 400; font-size: 0.72rem; }
.ep-session-title { font-weight: 600; font-size: 0.9rem; line-height: 1.4; flex: 1; }
.ep-session-preview { font-size: 0.78rem; color: var(--text3); line-height: 1.5; flex: 1; }
.ep-session-empty  { font-size: 0.82rem; color: var(--text3); font-style: italic; }
.ep-read-btn {
  font-size: 0.78rem; font-weight: 600; color: var(--accent);
  text-decoration: none; margin-top: auto;
  transition: opacity 0.15s;
}
.ep-read-btn:hover { opacity: 0.7; }
.ep-featured-foot {
  display: flex; gap: 0.8rem; flex-wrap: wrap;
  border-top: 1px solid var(--border); padding-top: 1rem;
}
.ep-empty-state {
  text-align: center; padding: 4rem 2rem;
  color: var(--text3); font-size: 0.95rem; line-height: 1.8;
}

/* Archive */
.ep-archive { margin-top: 0.5rem; }
.ep-archive-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.4rem; }
.ep-archive-desc  { font-size: 0.82rem; color: var(--text3); margin-bottom: 1rem; }
.ep-archive-desc a { color: var(--accent-light); text-decoration: underline; }

.ep-archive-list {
  border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
}
.ep-archive-row {
  display: grid; grid-template-columns: auto 1fr auto;
  align-items: center; gap: 1rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: background 0.1s;
}
.ep-archive-row:last-child { border-bottom: none; }
.ep-archive-row:hover { background: rgba(255,255,255,0.02); }
.ep-archive-row.ep-locked { opacity: 0.65; }

.ep-arc-left { display: flex; align-items: center; gap: 0.6rem; flex-shrink: 0; }
.ep-arc-date { font-size: 0.82rem; font-weight: 600; color: var(--text2); white-space: nowrap; }
.ep-arc-count { font-size: 0.75rem; color: var(--text3); }
.ep-arc-sessions { display: flex; gap: 0.2rem; }
.ep-arc-session-dot { font-size: 0.85rem; }

.ep-arc-titles { display: flex; flex-direction: column; gap: 0.2rem; overflow: hidden; }
.ep-arc-link { font-size: 0.82rem; color: var(--text2); text-decoration: none; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ep-arc-link:hover { color: var(--accent-light); }
.ep-arc-locked-title { font-size: 0.82rem; color: var(--text3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.ep-arc-right { flex-shrink: 0; }
.ep-arc-btn {
  font-size: 0.78rem; font-weight: 600; color: var(--accent);
  text-decoration: none; padding: 0.3rem 0.7rem;
  background: rgba(212,168,71,0.08); border: 1px solid rgba(212,168,71,0.25);
  border-radius: 6px; white-space: nowrap; transition: opacity 0.15s;
}
.ep-arc-btn:hover { opacity: 0.75; }
.ep-arc-btn-locked {
  font-size: 0.75rem; font-weight: 600; color: var(--yellow);
  text-decoration: none; padding: 0.3rem 0.7rem;
  background: rgba(251,191,36,0.08); border: 1px solid rgba(251,191,36,0.2);
  border-radius: 6px; white-space: nowrap;
}

/* Quiz page */
.qp-wrap { padding: 2rem 1.5rem 4rem; }
.qp-featured {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 16px; padding: 1.5rem; margin-bottom: 2.5rem;
}
.qp-quiz-wrap .daily-quiz-section { margin-top: 0; padding-top: 1rem; border-top: none; }

@media (max-width: 640px) {
  .ep-session-grid { grid-template-columns: 1fr; }
  .ep-archive-row  { grid-template-columns: auto 1fr; }
  .ep-arc-titles   { display: none; }
  .ep-arc-right    { grid-column: 2; }
}

/* ========================
   Quiz Card Grid
   ======================== */
.qp-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.qp-date-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.2rem 1.1rem;
  transition: border-color 0.2s, transform 0.2s;
}
.qp-date-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.qp-date-card.locked { opacity: 0.65; }
.qp-card-top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 0.6rem;
}
.qp-card-date { font-weight: 600; font-size: 0.9rem; }
.qp-card-count { font-size: 0.82rem; color: var(--text3); }

/* Hero font size on mobile */
@media (max-width: 480px) {
  .landing-h1 { font-size: 2.8rem; }
  .landing-hero { padding: 1.6rem 1.2rem 1.4rem; min-height: 32vh; }
}

/* ========================
   Word Click Popup
   ======================== */
.vocab-highlight {
  background: rgba(212,168,71,0.12);
  border-bottom: 2px solid var(--accent);
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.15s;
}
.vocab-highlight:hover { background: rgba(212,168,71,0.22); }

.word-popup {
  position: fixed;
  z-index: 9999;
  background: var(--bg2);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 0.9rem 1.1rem;
  min-width: 220px;
  max-width: 300px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(212,168,71,0.1);
  pointer-events: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.15s, transform 0.15s;
}
.word-popup.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.wp-word  { font-size: 1.05rem; font-weight: 700; color: var(--text); }
.wp-pos   { font-size: 0.72rem; color: var(--accent); font-weight: 600;
            background: rgba(212,168,71,0.12); padding: 0.1rem 0.5rem;
            border-radius: 10px; margin-left: 0.4rem; }
.wp-ko    { font-size: 0.9rem; color: var(--text2); margin-top: 0.4rem; font-weight: 500; }
.wp-en    { font-size: 0.78rem; color: var(--text3); margin-top: 0.2rem; line-height: 1.5; }
.wp-close { position: absolute; top: 0.5rem; right: 0.7rem;
            font-size: 0.8rem; color: var(--text3); cursor: pointer;
            background: none; border: none; padding: 0.2rem; }

/* ========================
   Category Badge (passage)
   ======================== */
.cat-badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em;
  padding: 0.2rem 0.7rem; border-radius: 20px; margin-bottom: 0.8rem;
  border: 1px solid var(--border); background: var(--bg3); color: var(--text3);
}
.cat-news         { background: rgba(59,130,246,0.1);  color:#60a5fa; border-color:rgba(59,130,246,0.25); }
.cat-business     { background: rgba(124,111,255,0.1); color:var(--accent-light); border-color:rgba(124,111,255,0.25); }
.cat-exam         { background: rgba(251,191,36,0.1);  color:var(--yellow); border-color:rgba(251,191,36,0.25); }
.cat-highschool   { background: rgba(251,191,36,0.1);  color:var(--yellow); border-color:rgba(251,191,36,0.25); }
.cat-conversation { background: rgba(74,222,128,0.1);  color:var(--green);  border-color:rgba(74,222,128,0.25); }
.cat-practical    { background: rgba(74,222,128,0.1);  color:var(--green);  border-color:rgba(74,222,128,0.25); }
.cat-basic        { background: rgba(156,163,175,0.1); color:#9ca3af; border-color:rgba(156,163,175,0.25); }
.cat-economics    { background: rgba(251,146,60,0.1);  color:#fb923c; border-color:rgba(251,146,60,0.25); }
.cat-tech         { background: rgba(34,211,238,0.1);  color:#22d3ee; border-color:rgba(34,211,238,0.25); }

/* Topic grid 6열 확장 */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
@media (max-width: 640px) {
  .topics-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ========================
   Category Tabs (English page)
   ======================== */
.cat-tabs-wrap {
  margin: 0.2rem 0 1.6rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.cat-tabs-wrap::-webkit-scrollbar { display: none; }
.cat-tabs {
  display: flex;
  gap: 0.45rem;
  white-space: nowrap;
  padding-bottom: 0.2rem;
}
.cat-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.42rem 0.95rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--text2);
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s;
  cursor: pointer;
}
.cat-tab:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: rgba(212,168,71,0.08);
}
.cat-tab.active {
  border-color: var(--accent);
  background: rgba(212,168,71,0.14);
  color: var(--accent);
  font-weight: 700;
}

/* card-no-items hint */
.card-no-items {
  font-size: 0.78rem;
  color: var(--text3);
  padding: 0.3rem 0 0.5rem;
  font-style: italic;
}

/* ========================
   Coin Dashboard
   ======================== */
.coin-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}
.coin-hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 1.5rem;
  padding: 2rem;
  background:
    radial-gradient(circle at top left, rgba(212,168,71,0.16), transparent 36%),
    radial-gradient(circle at bottom right, rgba(224,96,96,0.12), transparent 30%),
    linear-gradient(135deg, rgba(32,29,24,0.98), rgba(26,24,20,0.98));
  border: 1px solid rgba(212,168,71,0.18);
  border-radius: 26px;
  box-shadow: 0 26px 60px rgba(0,0,0,0.28);
}
.coin-kicker {
  display: inline-block;
  margin-bottom: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.76rem;
  color: var(--accent-light);
}
.coin-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 0.95;
  margin-bottom: 1rem;
}
.coin-hero p {
  max-width: 42rem;
  color: var(--text2);
  font-size: 1.05rem;
}
.coin-hero-meta {
  position: relative;
  min-height: 180px;
}
.coin-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(4px);
}
.coin-orb-one {
  width: 160px;
  height: 160px;
  right: 20px;
  top: 6px;
  background: radial-gradient(circle, rgba(212,168,71,0.58), rgba(212,168,71,0.06));
}
.coin-orb-two {
  width: 110px;
  height: 110px;
  left: 34px;
  bottom: 10px;
  background: radial-gradient(circle, rgba(224,96,96,0.35), rgba(224,96,96,0.02));
}
.coin-hero-card {
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(100%, 280px);
  padding: 1.1rem 1.15rem;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(18,17,14,0.78);
  backdrop-filter: blur(10px);
}
.coin-hero-label {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text3);
  margin-bottom: 0.4rem;
}
.coin-hero-value {
  font-family: var(--font-serif);
  font-size: 1.05rem;
}
.coin-toolbar,
.coin-grid {
  margin-top: 1.5rem;
}
.coin-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.9rem;
  align-items: center;
}
.coin-toolbar-left,
.coin-toolbar-right {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}
.coin-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.42rem 0.86rem;
  border-radius: 999px;
  border: 1px solid rgba(212,168,71,0.18);
  background: rgba(42,37,32,0.75);
  color: var(--text2);
  font-size: 0.84rem;
}
.coin-pill-live {
  color: #d8ffd8;
  border-color: rgba(90,184,120,0.34);
  background: rgba(48,83,58,0.45);
}
.coin-pill-danger {
  color: #ffd8d8;
  border-color: rgba(224,96,96,0.34);
  background: rgba(89,34,34,0.45);
}
.coin-pill-muted {
  border-color: rgba(255,255,255,0.08);
  color: var(--text3);
}
.coin-btn {
  appearance: none;
  border: 0;
  border-radius: 14px;
  padding: 0.74rem 1rem;
  font-family: var(--font-body);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.16s ease;
}
.coin-btn:hover { transform: translateY(-1px); }
.coin-btn.primary {
  color: #1a1814;
  background: var(--accent);
  box-shadow: 0 12px 28px rgba(212,168,71,0.24);
}
.coin-btn.ghost,
.coin-btn.secondary,
.coin-btn.accent,
.coin-btn.danger,
.coin-btn.ghost-danger {
  color: var(--text);
  background: var(--bg2);
  border: 1px solid var(--border);
}
.coin-btn.secondary { background: rgba(34,43,56,0.72); }
.coin-btn.accent {
  background: rgba(212,168,71,0.14);
  border-color: rgba(212,168,71,0.28);
}
.coin-btn.danger {
  background: rgba(224,96,96,0.16);
  border-color: rgba(224,96,96,0.3);
}
.coin-btn.ghost-danger {
  background: rgba(70,33,33,0.35);
  border-color: rgba(224,96,96,0.18);
}
.coin-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 1fr;
  gap: 1.2rem;
}
.coin-grid-lower { grid-template-columns: 1.65fr 1fr; }
.coin-card {
  padding: 1.2rem;
  background: linear-gradient(180deg, rgba(38,34,29,0.96), rgba(28,25,21,0.96));
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 22px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
}
.coin-card-feature { border-color: rgba(212,168,71,0.18); }
.coin-card-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.coin-card-head h2 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
}
.coin-card-kicker {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text3);
  margin-bottom: 0.35rem;
}
.coin-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
  margin-bottom: 1rem;
}
.coin-metric {
  padding: 1rem;
  border-radius: 18px;
  background: rgba(17,16,14,0.44);
  border: 1px solid rgba(255,255,255,0.05);
}
.coin-metric-label {
  display: block;
  color: var(--text3);
  font-size: 0.78rem;
  margin-bottom: 0.35rem;
}
.coin-metric strong {
  display: block;
  font-size: 1.15rem;
}
.coin-metric-sub {
  display: block;
  margin-top: 0.4rem;
  color: var(--text2);
  font-size: 0.82rem;
}
.coin-status-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}
.coin-status-list div,
.coin-balance-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0.9rem;
  border-radius: 14px;
  background: rgba(17,16,14,0.32);
}
.coin-status-list span,
.coin-balance-row span {
  color: var(--text2);
}
.coin-balance-stack {
  display: grid;
  gap: 0.75rem;
}
.coin-action-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.coin-note {
  color: var(--text2);
  font-size: 0.86rem;
}
.coin-table-wrap { overflow-x: auto; }
.coin-table {
  width: 100%;
  border-collapse: collapse;
}
.coin-table th,
.coin-table td {
  padding: 0.82rem 0.75rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  text-align: left;
  font-size: 0.88rem;
}
.coin-table th {
  color: var(--text3);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.coin-side {
  display: inline-flex;
  padding: 0.16rem 0.52rem;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
}
.coin-side-buy {
  background: rgba(90,184,120,0.16);
  color: #aef1c0;
}
.coin-side-sell {
  background: rgba(224,96,96,0.16);
  color: #ffc1c1;
}
.coin-event-list {
  display: grid;
  gap: 0.75rem;
}
.coin-event-item {
  padding: 0.9rem;
  border-radius: 16px;
  background: rgba(17,16,14,0.34);
  border: 1px solid rgba(255,255,255,0.05);
}
.coin-event-top {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  margin-bottom: 0.45rem;
}
.coin-event-level,
.coin-event-type {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.coin-event-level-info { color: var(--accent-light); }
.coin-event-level-warning { color: #f6d388; }
.coin-event-level-error { color: #ff9c9c; }
.coin-event-item p {
  color: var(--text);
  margin-bottom: 0.4rem;
}
.coin-event-item time,
.coin-event-empty {
  color: var(--text3);
  font-size: 0.8rem;
}
@media (max-width: 980px) {
  .coin-hero,
  .coin-grid,
  .coin-grid-lower {
    grid-template-columns: 1fr;
  }
  .coin-metrics,
  .coin-status-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .coin-shell {
    padding: 1rem 0.9rem 3rem;
  }
  .coin-hero {
    padding: 1.3rem;
    border-radius: 20px;
  }
  .coin-hero h1 {
    font-size: 2.2rem;
  }
  .coin-hero p {
    font-size: 0.95rem;
  }
  .coin-hero-card {
    position: relative;
    right: auto;
    bottom: auto;
    width: 100%;
    margin-top: 1rem;
  }
  .coin-toolbar-right,
  .coin-toolbar-left,
  .coin-action-grid {
    width: 100%;
  }
  .coin-toolbar-right {
    display: grid;
    grid-template-columns: 1fr;
  }
  .coin-action-grid {
    grid-template-columns: 1fr;
  }
  .coin-card {
    padding: 1rem;
    border-radius: 18px;
    overflow: hidden;
  }
  .coin-metrics,
  .coin-status-list {
    grid-template-columns: 1fr;
  }
  .coin-table-wrap {
    overflow: visible;
  }
  .coin-table,
  .coin-table thead,
  .coin-table tbody,
  .coin-table th,
  .coin-table td,
  .coin-table tr {
    display: block;
    width: 100%;
  }
  .coin-table thead {
    display: none;
  }
  .coin-table tr {
    padding: 0.9rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .coin-table tr:last-child {
    border-bottom: 0;
  }
  .coin-table td {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.42rem 0;
    border-bottom: 0;
    font-size: 0.84rem;
    text-align: left;
    overflow-wrap: anywhere;
  }
  .coin-table td::before {
    content: attr(data-label);
    flex: 0 0 40%;
    color: var(--text3);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.7rem;
  }
  .coin-event-item {
    padding: 0.8rem;
  }
}

/* ── Admin Dashboard 확장 스타일 ────────────────────────── */
.adm-stats-6 { grid-template-columns: repeat(6, 1fr); }
.adm-stat-blue { border-top: 3px solid #63b3ed; }
.adm-stat-sub { font-size: 0.72rem; color: var(--text3); margin-top: 0.2rem; }
.adm-card { background: var(--surface2); border: 1px solid var(--border); border-radius: 12px; padding: 1.4rem; }
.adm-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; margin-bottom: 1.2rem; }
.adm-two-col .adm-section { margin-bottom: 0; }
.adm-sub-title { font-size: 0.88rem; font-weight: 600; color: var(--text2); margin: 1rem 0 0.5rem; }

/* 시간대 구독 바 */
.adm-time-bars { display: flex; flex-direction: column; gap: 0.9rem; margin-top: 1rem; }
.adm-time-row { display: flex; align-items: center; gap: 0.6rem; }
.adm-time-label { font-size: 0.82rem; color: var(--text2); width: 7rem; flex-shrink: 0; }
.adm-bar-wrap { flex: 1; background: var(--surface); border-radius: 4px; height: 8px; overflow: hidden; }
.adm-bar { height: 100%; background: var(--accent); border-radius: 4px; min-width: 4px; transition: width .4s; }
.adm-bar-noon { background: #68d391; }
.adm-bar-eve  { background: #9f7aea; }
.adm-time-cnt { font-size: 0.82rem; font-weight: 600; width: 2.5rem; text-align: right; }

/* 메신저 요약 */
.adm-messenger-row { display: flex; gap: 1rem; margin-top: 1.2rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.adm-msg-stat { display: flex; align-items: center; gap: 0.35rem; }
.adm-msg-icon { font-size: 1rem; }
.adm-msg-n { font-weight: 700; font-size: 1rem; }
.adm-msg-lbl { font-size: 0.75rem; color: var(--text3); }

/* 방문자 바 차트 */
.adm-visit-bars { display: flex; align-items: flex-end; gap: 6px; height: 80px; }
.adm-vbar-col { display: flex; flex-direction: column; align-items: center; gap: 2px; flex: 1; }
.adm-vbar-num { font-size: 0.65rem; color: var(--text3); }
.adm-vbar-bar { width: 100%; background: var(--accent); border-radius: 3px 3px 0 0; min-height: 3px; }
.adm-vbar-lbl { font-size: 0.62rem; color: var(--text3); }

/* 인기 페이지 테이블 */
.adm-mini-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
.adm-mini-table tr { border-bottom: 1px solid var(--border); }
.adm-mini-table tr:last-child { border-bottom: none; }
.adm-mt-rank { color: var(--text3); width: 1.5rem; padding: 0.35rem 0; }
.adm-mt-path { color: var(--text2); padding: 0.35rem 0.5rem; word-break: break-all; }
.adm-mt-cnt  { color: var(--accent); font-weight: 600; text-align: right; white-space: nowrap; }

.adm-td-date { font-size: 0.78rem; color: var(--text3); white-space: nowrap; }

@media (max-width: 900px) {
  .adm-stats-6 { grid-template-columns: repeat(3, 1fr); }
  .adm-two-col { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .adm-stats-6 { grid-template-columns: repeat(2, 1fr); }
}

/* ========================
   Shadowing Feature
   ======================== */

/* ── 목록 페이지 ── */
.shadowing-list-page { padding: 2rem 0 4rem; }
.sh-hero { text-align: center; padding: 3rem 1rem 2.5rem; }
.sh-hero-icon { font-size: 3rem; margin-bottom: 0.75rem; }
.sh-hero-title { font-family: var(--font-display); font-size: 2rem; color: var(--accent); margin-bottom: 0.5rem; }
.sh-hero-sub { color: var(--text2); font-size: 0.95rem; }

.sh-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.sh-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.2s, transform 0.15s;
  display: block;
}
.sh-card:hover { border-color: var(--accent-dim); transform: translateY(-2px); }
.sh-locked { opacity: 0.65; }

.sh-card-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
}
.sh-no-thumb span { font-size: 2.5rem; }
.sh-card-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.sh-lock-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}
.sh-play-icon {
  position: absolute;
  bottom: 0.5rem;
  right: 0.5rem;
  background: rgba(0,0,0,0.7);
  color: #fff;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

.sh-card-info { padding: 0.85rem 1rem; }
.sh-card-date { font-size: 0.72rem; color: var(--text3); margin-bottom: 0.3rem; }
.sh-card-title { font-weight: 600; font-size: 0.9rem; margin-bottom: 0.4rem; line-height: 1.4; }
.sh-card-topic { font-size: 0.8rem; color: var(--text2); margin-bottom: 0.5rem; }
.sh-card-meta { display: flex; gap: 0.4rem; flex-wrap: wrap; }

.sh-badge {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 20px;
  font-size: 0.72rem;
  background: var(--bg3);
  color: var(--text2);
  border: 1px solid var(--border);
}
.sh-badge-sent { color: var(--accent); border-color: var(--accent-dim); }

.sh-empty { text-align: center; padding: 3rem; color: var(--text2); }

/* ── 상세 페이지 ── */
.shadowing-page { padding: 1.5rem 0 4rem; }

.sh-page-header { margin: 1rem 0 1.5rem; }
.sh-page-title { font-family: var(--font-display); font-size: 1.5rem; color: var(--text); margin-bottom: 0.5rem; line-height: 1.3; }
.sh-page-meta { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* ── 메인 그리드 (비디오 + 문장) ── */
.sh-main-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 1.5rem;
  margin-bottom: 2rem;
  align-items: start;
}

/* 비디오 */
.sh-video-wrap {
  position: relative;
  aspect-ratio: 16/9;
  background: #000;
  border-radius: var(--card-radius);
  overflow: hidden;
}
.sh-video-wrap iframe,
.sh-video-wrap #yt-player { width: 100%; height: 100%; }

.sh-video-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
  min-height: 2rem;
}
.sh-loop-status { font-size: 0.82rem; color: var(--accent); }

.sh-no-video {
  aspect-ratio: 16/9;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 2rem;
  color: var(--text3);
}
.sh-no-video p { font-size: 0.9rem; }

/* 녹음 패널 */
.sh-record-panel {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1rem 1.25rem;
  margin-top: 1rem;
}
.sh-record-sentence {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.3rem;
  line-height: 1.5;
}
.sh-record-ko {
  font-size: 0.82rem;
  color: var(--text2);
  margin-bottom: 0.75rem;
}
.sh-record-btns { display: flex; gap: 0.5rem; margin-bottom: 0.5rem; }
.sh-record-hint { font-size: 0.75rem; color: var(--text3); }

/* 문장 패널 */
.sh-sentences-col {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  overflow: hidden;
  max-height: 600px;
  display: flex;
  flex-direction: column;
}
.sh-sentences-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
}
.sh-sentences-header h2 { font-size: 0.95rem; }
.sh-sentences-list {
  overflow-y: auto;
  flex: 1;
  padding: 0.5rem 0;
}
.sh-empty-msg { text-align: center; padding: 2rem; color: var(--text3); font-size: 0.85rem; }

.sh-sentence-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
  cursor: default;
}
.sh-sentence-item:last-child { border-bottom: none; }
.sh-sent-active { background: rgba(212, 168, 71, 0.08); }

.sh-sent-num {
  font-size: 0.72rem;
  color: var(--text3);
  min-width: 18px;
  padding-top: 0.1rem;
  flex-shrink: 0;
}
.sh-sent-body { flex: 1; min-width: 0; }
.sh-sent-en {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text);
}
.sh-sent-ko {
  font-size: 0.78rem;
  color: var(--text2);
  margin-top: 0.2rem;
  line-height: 1.4;
}
.sh-sent-actions {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex-shrink: 0;
}

/* 어휘 하이라이트 */
.sh-vocab-hl {
  color: var(--accent);
  cursor: pointer;
  border-bottom: 1px dashed var(--accent-dim);
  transition: color 0.15s;
}
.sh-vocab-hl:hover { color: var(--accent-light); }

/* ── 공통 버튼 ── */
.sh-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.sh-btn:hover { background: var(--border); }
.sh-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.sh-btn-primary { background: var(--accent); color: #1a1814; border-color: var(--accent); font-weight: 600; }
.sh-btn-primary:hover { background: var(--accent-light); }
.sh-btn-sm { font-size: 0.72rem; padding: 0.2rem 0.5rem; }
.sh-btn-loop-off { background: var(--red); border-color: var(--red); color: #fff; }
.sh-recording { background: var(--red) !important; border-color: var(--red) !important; color: #fff !important; }

/* ── 섹션 공통 ── */
.sh-section {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
}
.sh-section-title { font-size: 1rem; font-weight: 600; margin-bottom: 1rem; }

/* ── 어휘 그리드 ── */
.sh-vocab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.85rem;
}
.sh-vocab-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem;
}
.sh-vc-word { font-size: 1rem; font-weight: 700; color: var(--accent); margin-bottom: 0.15rem; }
.sh-vc-pron { font-size: 0.75rem; color: var(--text3); margin-bottom: 0.25rem; }
.sh-vc-pos  { font-size: 0.72rem; color: var(--text3); font-style: italic; margin-bottom: 0.35rem; }
.sh-vc-korean  { font-size: 0.85rem; font-weight: 600; margin-bottom: 0.2rem; }
.sh-vc-english { font-size: 0.78rem; color: var(--text2); line-height: 1.4; }

/* ── 퀴즈 ── */
.sh-quiz-list { display: flex; flex-direction: column; gap: 1rem; }
.sh-quiz-item { display: flex; gap: 0.75rem; }
.sh-q-num { font-size: 0.8rem; color: var(--text3); font-weight: 600; min-width: 28px; padding-top: 0.15rem; flex-shrink: 0; }
.sh-q-body { flex: 1; }
.sh-q-question { font-size: 0.9rem; margin-bottom: 0.5rem; line-height: 1.5; }
.sh-q-input-row { display: flex; gap: 0.5rem; margin-bottom: 0.35rem; }
.sh-q-input {
  flex: 1;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.88rem;
  padding: 0.4rem 0.7rem;
  outline: none;
  transition: border-color 0.2s;
}
.sh-q-input:focus { border-color: var(--accent-dim); }
.sh-q-result { font-size: 0.82rem; padding: 0.3rem 0; }
.sh-correct { color: var(--green); }
.sh-wrong   { color: var(--red); }

.sh-quiz-submit-area { margin-top: 1.25rem; display: flex; align-items: center; gap: 1rem; }
.sh-quiz-score { font-size: 0.9rem; font-weight: 600; color: var(--accent); }

/* ── 어휘 팝업 ── */
.sh-vocab-popup {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  padding: 1rem;
}
.sh-vp-inner {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.5rem;
  max-width: 360px;
  width: 100%;
  position: relative;
}
.sh-vp-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  font-size: 1rem;
}
.sh-vp-word { font-size: 1.5rem; font-weight: 700; color: var(--accent); margin-bottom: 0.25rem; }
.sh-vp-pron { font-size: 0.85rem; color: var(--text3); margin-bottom: 0.2rem; }
.sh-vp-pos  { font-size: 0.8rem; color: var(--text3); font-style: italic; margin-bottom: 0.75rem; }
.sh-vp-ko   { font-size: 1rem; font-weight: 600; margin-bottom: 0.4rem; }
.sh-vp-en   { font-size: 0.88rem; color: var(--text2); line-height: 1.5; }

/* ── 반응형 ── */
@media (max-width: 800px) {
  .sh-main-grid { grid-template-columns: 1fr; }
  .sh-sentences-col { max-height: 400px; }
}
@media (max-width: 480px) {
  .sh-list { grid-template-columns: 1fr; }
  .sh-sent-actions { flex-direction: row; }
}

/* Shadowing 카테고리 탭 강조 */
.cat-tab-shadowing {
  color: var(--accent) !important;
  border-color: var(--accent-dim) !important;
}
.cat-tab-shadowing:hover {
  background: rgba(212,168,71,0.12) !important;
}

/* 문장 행 클릭 가이드 */
.sh-sentence-item { cursor: pointer; }
.sh-sentence-item:hover { background: rgba(212,168,71,0.05); }
.sh-record-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text3);
  margin-bottom: 0.4rem;
}