/* ─── CSS 변수 ─── */
    :root {
      --navy: #121212;
      --navy2: #1e1e1e;
      --navy3: #2c2c2e;
      --navy4: #3a3a3c;
      --gold: #4caf50;
      --gold2: #d4af37;
      --gold3: #0066ff;
      --cream: #f5efe6;
      --cream2: #ede5d8;
      --text: #f5f5f7;
      --textmut: #a1a1a6;
      --textdim: #6e6e73;
      --radius: 16px;
      --shadow: 0 8px 32px rgba(0, 0, 0, .45);
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0
    }

    html {
      scroll-behavior: smooth
    }

    body {
      background: #000;
      color: var(--text);
      font-family: 'Noto Sans KR', sans-serif;
      min-height: 100vh;
      overflow-x: hidden;
      display: flex;
      justify-content: center;
    }

    /* ─── 배경 패턴 ─── */
    

    

    /* ─── 공통 레이아웃 ─── */
    .page {
      position: relative;
      z-index: 1;
      width: 100%;
      max-width: 480px;
      margin: 0 auto;
      padding: 0 0 80px;
      background: var(--navy);
      min-height: 100vh;
    }

    /* ─── 상단/하단 영상 배너 ─── */
    .top-banner, .bottom-banner {
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      width: 100%;
      aspect-ratio: 4 / 1;
      height: auto;
      text-decoration: none;
      text-align: center;
      overflow: hidden;
      transition: opacity 0.2s;
      flex-shrink: 0;
      background-color: var(--navy);
    }
    .top-banner {
      position: sticky;
      top: 0;
      z-index: 90;
      border-bottom: 2px solid rgba(212, 175, 55, 0.5);
    }
    .bottom-banner {
      position: absolute;
      bottom: 0;
      left: 0;
      border-top: 2px solid rgba(212, 175, 55, 0.5);
    }
    .top-banner:hover, .bottom-banner:hover {
      opacity: 0.9;
    }
    .banner-video {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 0;
    }

    .top-banner-content {
      position: relative;
      z-index: 2;
    }
    .top-banner-text {
      font-family: 'Noto Serif KR', serif;
      color: var(--gold2);
      font-size: 14px;
      line-height: 1.5;
      font-weight: 500;
      text-shadow: 0 2px 4px rgba(0,0,0,0.8);
    }
    .top-banner-org {
      display: block;
      margin-top: 6px;
      font-family: 'Noto Sans KR', sans-serif;
      color: var(--text);
      font-size: 11px;
      font-weight: 400;
      opacity: 0.9;
    }

    /* ─── 헤더 ─── */
    .hero {
      text-align: center;
      padding: 32px 24px 32px;
    }

    .hero-icon {
      font-size: 36px;
      margin-bottom: 12px;
      display: block;
      filter: drop-shadow(0 0 12px rgba(200, 150, 62, .5));
    }

    .hero h1 {
      font-family: 'Cormorant Garamond', serif;
      font-size: 32px;
      font-weight: 600;
      color: var(--gold2);
      line-height: 1.3;
      letter-spacing: .02em;
      margin-bottom: 8px;
    }

    .hero h1 em {
      font-style: italic;
      color: var(--gold3)
    }

    .hero p {
      font-size: 13px;
      color: var(--textmut);
      line-height: 1.6;
    }

    .hero-line {
      width: 60px;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--gold), transparent);
      margin: 16px auto;
    }

    /* ─── 진행 바 ─── */
    .progress-wrap {
      padding: 0 20px 20px
    }

    .progress-label {
      display: flex;
      justify-content: space-between;
      font-size: 11px;
      color: var(--textdim);
      margin-bottom: 6px
    }

    .progress-bar {
      height: 4px;
      border-radius: 2px;
      background: var(--navy3);
      overflow: hidden
    }

    .progress-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--gold), var(--gold3));
      border-radius: 2px;
      transition: width .5s ease
    }

    /* ─── 탭 카테고리 ─── */
    .tabs-wrap {
      padding: 0 16px 16px;
    }

    .tabs {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tab {
      padding: 7px 14px;
      border-radius: 24px;
      border: 1px solid var(--navy4);
      font-size: 12px;
      font-family: 'Noto Sans KR', sans-serif;
      color: var(--textmut);
      background: var(--navy2);
      cursor: pointer;
      transition: all .2s;
      white-space: nowrap;
    }

    .tab:hover {
      border-color: var(--gold);
      color: var(--gold)
    }

    .tab.active {
      background: linear-gradient(135deg, var(--gold), var(--gold2));
      color: var(--navy);
      border-color: transparent;
      font-weight: 500;
      box-shadow: 0 2px 12px rgba(200, 150, 62, .35);
    }

    /* ─── 컨트롤 바 ─── */
    .controls {
      display: flex;
      gap: 8px;
      padding: 0 16px 16px;
      flex-wrap: wrap;
      align-items: center;
    }

    .ctrl-btn {
      padding: 6px 14px;
      border-radius: 8px;
      border: 1px solid var(--navy4);
      font-size: 12px;
      color: var(--textmut);
      background: var(--navy2);
      cursor: pointer;
      transition: all .18s;
      display: flex;
      align-items: center;
      gap: 5px;
    }

    .ctrl-btn:hover {
      border-color: var(--gold);
      color: var(--gold)
    }

    .ctrl-btn.active {
      background: var(--navy3);
      border-color: var(--gold);
      color: var(--gold3)
    }

    .ctrl-spacer {
      flex: 1
    }

    .ver-select {
      padding: 6px 10px;
      border-radius: 8px;
      border: 1px solid var(--navy4);
      background: var(--navy2);
      color: var(--textmut);
      font-size: 12px;
      cursor: pointer;
      font-family: 'Noto Sans KR', sans-serif;
    }

    .ver-select:focus {
      outline: none;
      border-color: var(--gold)
    }

    /* ─── 구절 카드 ─── */
    .verse-list {
      padding: 0 16px;
      display: flex;
      flex-direction: column;
      gap: 12px
    }

    .vcard {
      background: var(--navy2);
      border: 1px solid var(--navy3);
      border-radius: var(--radius);
      overflow: hidden;
      transition: transform .15s, border-color .15s, box-shadow .15s;
      cursor: pointer;
    }

    .vcard:hover {
      transform: translateY(-2px);
      border-color: var(--navy4);
      box-shadow: var(--shadow);
    }

    .vcard.memorized {
      border-color: rgba(200, 150, 62, .4);
      background: linear-gradient(135deg, var(--navy2) 0%, rgba(200, 150, 62, .05) 100%);
    }

    .vcard-head {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 14px 10px;
      border-bottom: 1px solid var(--navy3);
    }

    .vnum {
      font-size: 11px;
      color: var(--textdim);
      font-variant-numeric: tabular-nums;
      min-width: 22px;
    }

    .vref {
      font-size: 12px;
      font-weight: 500;
      color: var(--gold);
      flex: 1;
    }

    .vcheck {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      border: 1.5px solid var(--navy4);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      transition: all .2s;
      flex-shrink: 0;
      color: transparent;
    }

    .vcard.memorized .vcheck {
      background: var(--gold);
      border-color: var(--gold);
      color: var(--navy);
    }

    .vcard-body {
      padding: 12px 14px
    }

    .vko {
      font-family: 'Noto Serif KR', serif;
      font-size: 15px;
      line-height: 1.75;
      color: var(--text);
      margin-bottom: 10px;
      transition: filter .3s;
    }

    .vko.hidden {
      filter: blur(6px);
      user-select: none
    }

    .ven {
      font-family: 'Noto Sans KR', sans-serif;
      font-size: 16px;
      line-height: 1.65;
      color: var(--textmut);
      border-top: 1px solid var(--navy3);
      padding-top: 10px;
      transition: filter .3s;
    }

    .ven.hidden {
      filter: blur(6px);
      user-select: none
    }

    .ven.hide-mode {
      display: none
    }

    .vcard-foot {
      padding: 8px 14px;
      border-top: 1px solid var(--navy3);
      display: flex;
      gap: 8px;
      align-items: center;
    }

    .vtag {
      font-size: 10px;
      padding: 2px 8px;
      border-radius: 10px;
      background: var(--navy3);
      color: var(--textdim);
    }

    .vbtn {
      margin-left: auto;
      font-size: 11px;
      color: var(--textdim);
      background: none;
      border: 1px solid var(--navy4);
      border-radius: 6px;
      padding: 3px 10px;
      cursor: pointer;
      transition: all .15s;
    }

    .vbtn:hover {
      border-color: var(--gold);
      color: var(--gold)
    }

    /* ─── 암송 모드 (플립 카드) ─── */
    .quiz-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(8, 15, 24, .95);
      z-index: 100;
      align-items: center;
      justify-content: flex-start;
      flex-direction: column;
      padding: 56px 20px 24px;
      overflow-y: auto;
    }

    .quiz-overlay.show {
      display: flex
    }

    .quiz-card {
      width: 100%;
      max-width: 420px;
      perspective: 1000px;
      cursor: pointer;
      align-self: stretch;
      flex-shrink: 0;
    }

    .quiz-inner {
      display: grid;
      position: relative;
      transform-style: preserve-3d;
      transition: transform .6s cubic-bezier(.4, 0, .2, 1);
      min-height: 240px;
    }

    .quiz-inner.flipped {
      transform: rotateY(180deg)
    }

    .quiz-front,
    .quiz-back {
      grid-area: 1 / 1;
      backface-visibility: hidden;
      -webkit-backface-visibility: hidden;
      border-radius: 18px;
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
      align-items: center;
      padding: 22px 20px 22px;
      text-align: center;
      border: 1px solid var(--navy4);
    }

    .quiz-front {
      background: var(--navy2);
      box-shadow: 0 16px 48px rgba(0, 0, 0, .6);
    }

    .quiz-back {
      transform: rotateY(180deg);
      background: linear-gradient(145deg, var(--navy3), var(--navy2));
      box-shadow: 0 16px 48px rgba(0, 0, 0, .6);
    }

    .qref {
      font-size: 13px;
      color: var(--gold);
      font-weight: 500;
      margin-bottom: 16px;
    }

    .qtext {
      font-family: 'Noto Serif KR', serif;
      font-size: 16px;
      line-height: 1.8;
      color: var(--text);
      margin-bottom: 8px;
    }

    .qen {
      font-family: 'Noto Sans KR', sans-serif;
      font-size: 17px;
      line-height: 1.65;
      color: var(--textmut);
      margin-top: 12px;
    }

    .qhint {
      font-size: 11px;
      color: var(--textdim);
      margin-top: 12px
    }

    .quiz-nav {
      display: flex;
      gap: 12px;
      margin-top: 24px;
      align-items: center;
    }

    .qnav-btn {
      padding: 10px 24px;
      border-radius: 10px;
      border: 1px solid var(--navy4);
      font-size: 13px;
      color: var(--textmut);
      background: var(--navy2);
      cursor: pointer;
      transition: all .18s;
      font-family: 'Noto Sans KR', sans-serif;
    }

    .qnav-btn:hover {
      border-color: var(--gold);
      color: var(--gold)
    }

    .qnav-btn.primary {
      background: linear-gradient(135deg, var(--gold), var(--gold2));
      color: var(--navy);
      border-color: transparent;
      font-weight: 500;
    }

    .quiz-close {
      position: fixed;
      top: 20px;
      right: 20px;
      width: 36px;
      height: 36px;
      border-radius: 50%;
      border: 1px solid var(--navy4);
      background: var(--navy2);
      color: var(--textmut);
      font-size: 18px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 101;
      transition: all .15s;
    }

    .quiz-close:hover {
      border-color: var(--gold);
      color: var(--gold)
    }

    .quiz-progress {
      font-size: 13px;
      color: var(--textdim);
      margin-top: 10px;
      margin-bottom: 4px;
      letter-spacing: 0.04em;
    }

    /* ─── 통계 바 ─── */
    .stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1px;
      background: var(--navy3);
      border-radius: 12px;
      overflow: hidden;
      margin: 0 16px 20px;
    }

    .stat {
      background: var(--navy2);
      padding: 14px 8px;
      text-align: center;
    }

    .stat-num {
      font-family: 'Cormorant Garamond', serif;
      font-size: 26px;
      font-weight: 600;
      color: var(--gold2);
      line-height: 1;
    }

    .stat-label {
      font-size: 10px;
      color: var(--textdim);
      margin-top: 4px
    }

    /* ─── 버전 정보 카드 ─── */
    .ver-info {
      margin: 0 16px 20px;
      background: var(--navy2);
      border: 1px solid var(--navy3);
      border-radius: var(--radius);
      padding: 14px 16px;
      display: none;
    }

    .ver-info.show {
      display: block
    }

    .ver-info h3 {
      font-size: 13px;
      color: var(--gold);
      margin-bottom: 8px
    }

    .ver-info p {
      font-size: 12px;
      color: var(--textmut);
      line-height: 1.6
    }

    /* ─── 플로팅 버튼 ─── */
    .fab {
      position: absolute;
      bottom: 120px;
      right: 20px;
      width: auto;
      padding: 0 20px;
      height: 52px;
      border-radius: 26px;
      pointer-events: auto;
      background: linear-gradient(135deg, var(--gold), var(--gold2));
      color: var(--navy);
      font-size: 22px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 20px rgba(200, 150, 62, .5);
      z-index: 50;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: transform .2s, box-shadow .2s;
    }

    .fab:hover {
      transform: scale(1.08);
      box-shadow: 0 6px 28px rgba(200, 150, 62, .65)
    }

    /* ─── 공유 버튼 ─── */
    .share-bar {
      display: flex;
      gap: 8px;
      padding: 0 16px 20px;
    }

    .share-btn {
      flex: 1;
      padding: 10px;
      border-radius: 10px;
      border: 1px solid var(--navy4);
      font-size: 12px;
      color: var(--textmut);
      background: var(--navy2);
      cursor: pointer;
      transition: all .18s;
      font-family: 'Noto Sans KR', sans-serif;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }

    .share-btn:hover {
      border-color: var(--gold);
      color: var(--gold)
    }

    .share-btn.kakao {
      background: #FEE500;
      color: #3A1D1D;
      border-color: #FEE500;
      font-weight: 500
    }

    .share-btn.kakao:hover {
      background: #F5D900;
      border-color: #F5D900
    }

    /* ─── 토스트 ─── */
    .toast {
      position: fixed;
      bottom: 88px;
      left: 0;
      right: 0;
      margin: 0 auto;
      max-width: max-content;
      transform: translateY(20px);
      background: var(--navy3);
      border: 1px solid var(--gold);
      color: var(--gold2);
      font-size: 13px;
      padding: 10px 20px;
      border-radius: 24px;
      z-index: 200;
      opacity: 0;
      transition: all .3s;
      pointer-events: none;
      white-space: nowrap;
    }

    .toast.show {
      opacity: 1;
      transform: translateY(0)
    }

    /* ─── 오디오 플레이어 링크 바 ─── */
    .audio-banner {
      margin: 0 16px 20px;
      background: linear-gradient(135deg, #0f3460, #1a2d45);
      border: 1px solid rgba(212, 175, 55, .35);
      border-radius: var(--radius);
      padding: 14px 18px;
      display: flex;
      align-items: center;
      gap: 12px;
      cursor: pointer;
      transition: border-color .2s, box-shadow .2s;
      text-decoration: none;
    }

    .audio-banner:hover {
      border-color: var(--gold);
      box-shadow: 0 4px 18px rgba(200, 150, 62, .2);
    }

    .audio-banner-icon {
      font-size: 22px;
    }

    .audio-banner-text {
      flex: 1;
    }

    .audio-banner-title {
      font-size: 13px;
      font-weight: 500;
      color: var(--gold2);
      margin-bottom: 2px;
    }

    .audio-banner-sub {
      font-size: 11px;
      color: var(--textmut);
    }

    .audio-banner-arrow {
      color: var(--gold);
      font-size: 16px;
    }

    /* ─── 구절 듣기 버튼 ─── */
    .vbtn-audio {
      font-size: 11px;
      color: var(--textdim);
      background: none;
      border: 1px solid var(--navy4);
      border-radius: 6px;
      padding: 3px 9px;
      cursor: pointer;
      transition: all .15s;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .vbtn-audio:hover {
      border-color: var(--gold2);
      color: var(--gold2);
    }

    /* ─── 반응형 ─── */
    @media(min-width:500px) {
      .page {
        padding-bottom: 100px
      }
    }
  </style>

/* ─── 모듈화된 카드 스타일 (Modular Card UI) ─── */
.module-card {
  background: var(--navy2);
  border: 1px solid var(--navy4);
  border-radius: var(--radius);
  margin: 0 16px 20px;
  padding: 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.module-header {
  font-size: 14px;
  color: var(--gold2);
  margin-bottom: 12px;
  font-weight: 600;
  border-bottom: 1px solid var(--navy4);
  padding-bottom: 8px;
  letter-spacing: 0.5px;
}

/* ─── 앱 인트로 스플래시 ─── */
.app-intro {
  position: fixed;
  inset: 0;
  max-width: 480px;
  margin: 0 auto;
  z-index: 9999;
  background: #000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: opacity 0.8s ease;
}

.app-intro.fade-out {
  opacity: 0;
  pointer-events: none;
}

.intro-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.6;
}

.intro-overlay-ui {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.intro-overlay-ui h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 42px;
  font-weight: 600;
  color: var(--gold2);
  text-shadow: 0 4px 12px rgba(0,0,0,0.8);
}

.intro-overlay-ui p {
  color: #fff;
  font-size: 14px;
  opacity: 0.9;
  text-shadow: 0 2px 6px rgba(0,0,0,0.8);
}

.intro-start-btn {
  padding: 12px 32px;
  border-radius: 30px;
  border: none;
  background: linear-gradient(135deg, var(--gold), var(--gold2));
  color: var(--navy);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(200, 150, 62, 0.5);
  transition: transform 0.2s;
  font-family: 'Noto Sans KR', sans-serif;
}

.intro-start-btn:hover {
  transform: scale(1.05);
}

.intro-skip-btn {
  position: absolute;
  bottom: 40px;
  right: 20px;
  z-index: 3;
  padding: 8px 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  font-size: 12px;
  cursor: pointer;
  backdrop-filter: blur(4px);
}