:root {
  --bg-top: #f8f4e8;
  --bg-bottom: #dfe8d7;
  --panel: rgba(255, 255, 255, 0.72);
  --ink: #203124;
  --muted: #5f6f62;
  --accent: #1f6f50;
  --accent-soft: #d9efe2;
  --line: rgba(32, 49, 36, 0.16);
  --shadow: 0 12px 30px rgba(31, 51, 35, 0.12);
}

* {
  box-sizing: border-box;
  touch-action: manipulation;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "SUIT", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  background:
    radial-gradient(
      circle at 15% 10%,
      rgba(244, 209, 153, 0.52) 0%,
      transparent 34%
    ),
    radial-gradient(
      circle at 88% 14%,
      rgba(133, 180, 139, 0.4) 0%,
      transparent 30%
    ),
    linear-gradient(160deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
  padding: 32px 20px 40px;
}

.wrap {
  width: min(1080px, 100%);
  margin: 0 auto;
}

.hero {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  padding: 26px 24px;
  background: linear-gradient(
    115deg,
    rgba(255, 255, 255, 0.9),
    rgba(230, 241, 232, 0.76)
  );
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero::after {
  content: "";
  position: absolute;
  right: -30px;
  top: -28px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(244, 209, 153, 0.5) 0%,
    rgba(244, 209, 153, 0) 70%
  );
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.site-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: contain;
  box-shadow: 0 5px 12px rgba(31, 51, 35, 0.14);
  background: rgba(255, 255, 255, 0.72);
}

.brand-title {
  margin: 0;
  font-family: "Nanum Myeongjo", serif;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  letter-spacing: 0.02em;
}

.sub {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.98rem;
}

.controls {
  margin-top: 20px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.mini-controls {
  margin-top: 10px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.access-hint {
  margin: 10px 0 0;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(31, 111, 80, 0.22);
  background: rgba(223, 240, 229, 0.8);
  color: #2f6e52;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.4;
}

.sync-fab-wrap {
  position: fixed;
  top: 32px;
  right: max(14px, calc((100vw - min(1080px, 100vw)) / 2 - 180px));
  z-index: 120;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.sync-fab {
  border: 1px solid rgba(95, 111, 98, 0.28);
  background: rgba(255, 255, 255, 0.92);
  color: #44594a;
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(31, 51, 35, 0.14), 0 8px 24px rgba(31, 51, 35, 0.18);
  padding: 7px 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.sync-fab-title {
  font-size: 0.8rem;
  font-weight: 800;
}

.sync-fab-text {
  font-size: 0.74rem;
  font-weight: 800;
  padding: 3px 7px;
  border-radius: 999px;
  background: #edf2ef;
  color: #54685a;
}

.sync-fab.ok .sync-fab-text {
  background: #e2f0e8;
  color: #2f6e52;
}

.sync-fab.error .sync-fab-text {
  background: #fde8df;
  color: #8e4d2f;
}

.sync-menu {
  width: min(92vw, 360px);
  border: 1px solid rgba(95, 111, 98, 0.22);
  background: rgba(255, 255, 255, 0.97);
  border-radius: 12px;
  box-shadow: 0 14px 26px rgba(31, 51, 35, 0.2);
  padding: 11px;
}

.sync-panel {
  margin-top: 12px;
  border: 1px solid rgba(95, 111, 98, 0.2);
  background: rgba(255, 255, 255, 0.55);
  border-radius: 12px;
  padding: 10px 12px;
}

.sync-status {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  color: #5f6f62;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.sync-status.ok {
  color: #2f6e52;
}

.sync-status.error {
  color: #8e4d2f;
}

.sync-auth {
  margin-top: 8px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.sync-account {
  margin: 8px 0 0;
  font-size: 0.78rem;
  color: #4c5f52;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.sync-auth .mini-btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

.sync-auth-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sync-auth-actions .mini-btn {
  flex: 1 1 auto;
}

.sync-email {
  min-width: 200px;
  max-width: 320px;
  flex: 1 1 240px;
  display: block;
  height: 40px;
  max-height: 40px;
  line-height: 1.2;
}

.sync-password {
  min-width: 180px;
  max-width: 320px;
  flex: 1 1 220px;
  height: 40px;
  max-height: 40px;
  line-height: 1.2;
}

.sync-hint {
  margin: 8px 0 0;
  font-size: 0.75rem;
  color: #6b7c70;
}

.sync-hint a {
  color: #1f5f85;
}

.input,
.btn {
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 0.95rem;
}

.input {
  flex: 1 1 240px;
  min-width: 220px;
  padding: 11px 12px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
}

.btn {
  cursor: pointer;
  padding: 11px 13px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  transition:
    transform 0.18s ease,
    background-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  background: #cce5d7;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.mini-btn {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 11px;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1;
  background: rgba(255, 255, 255, 0.86);
  color: #48614f;
  cursor: pointer;
  transition: background-color 0.16s ease;
}

.mini-btn:hover {
  background: #eaf3ed;
}

.mini-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.mini-btn.danger {
  border-color: rgba(154, 75, 44, 0.28);
  color: #8e4d2f;
  background: #fff5f0;
}

.mini-btn.danger:hover {
  background: #ffeae0;
}

.chapter-toolbar {
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.chapter-label {
  color: #5e7264;
  font-size: 0.82rem;
  font-weight: 700;
}

.chapter-toggle {
  display: none;
  gap: 4px;
}

.chapter-toggle-icon {
  display: inline-block;
  transition: transform 0.28s ease;
}

.chapter-toggle-icon.expanded {
  transform: rotate(-180deg);
}

.chapter-nav {
  margin-top: 16px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chapter-nav.collapsed {
  display: none;
}

.chip {
  border: 1px solid rgba(31, 111, 80, 0.25);
  background: rgba(255, 255, 255, 0.8);
  color: var(--accent);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.9rem;
  cursor: pointer;
}

.chip.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.chip.appendix {
  border-color: rgba(57, 71, 119, 0.34);
  background: #eef1fb;
  color: #394777;
}

.chip.appendix.active {
  background: #394777;
  color: #fff;
  border-color: #394777;
}

.status {
  margin: 18px 0 8px;
  font-weight: 600;
  color: var(--muted);
}

.status-chapter {
  color: var(--ink);
  font-weight: 800;
}

.status-row {
  margin-top: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.status-row .status {
  margin: 0;
  flex: 1 1 auto;
  min-width: 0;
}

.sort-select-compact {
  flex: 0 0 auto;
  width: 148px;
  min-width: 148px;
  height: 34px;
  min-height: 34px;
  padding: 0 10px;
  line-height: 1.2;
  font-size: 0.82rem;
  border-radius: 10px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.card {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(5px);
  border-radius: 14px;
  padding: 12px;
  box-shadow: 0 7px 16px rgba(31, 51, 35, 0.06);
  cursor: pointer;
  transition:
    border-color 0.16s ease,
    box-shadow 0.16s ease;
}

.card button {
  cursor: pointer;
}

.card:hover {
  border-color: rgba(31, 111, 80, 0.3);
  box-shadow: 0 10px 20px rgba(31, 51, 35, 0.08);
}

.card.flash-focus {
  border-color: #e3a31b;
  box-shadow: 0 0 0 3px rgba(227, 163, 27, 0.22);
}
@keyframes card-flip-out{from{transform:rotateX(0deg)}to{transform:rotateX(90deg)}}
@keyframes card-flip-in{from{transform:rotateX(-90deg)}to{transform:rotateX(0deg)}}
.ko.flip-out{animation:card-flip-out 0.06s ease-in forwards;display:block;}
.ko.flip-in{animation:card-flip-in 0.06s ease-out;display:block;}

.en {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.word-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.speak-btn {
  border: 1px solid rgba(31, 111, 80, 0.28);
  border-radius: 999px;
  background: #eef8f1;
  color: #1f6f50;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 5px 10px;
  cursor: pointer;
  white-space: nowrap;
  min-height: 30px;
}

.speak-btn:hover {
  background: #dff0e5;
}

.speak-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.pin-btn {
  border: none;
  border-radius: 999px;
  background: transparent;
  color: rgba(90, 102, 122, 0.3);
  font-size: 0.82rem;
  font-weight: 800;
  line-height: 1;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-left: 8px;
  transition: color 0.15s, background 0.15s;
}

.pin-btn:hover {
  color: rgba(90, 102, 122, 0.6);
  background: rgba(90, 102, 122, 0.07);
}

.pin-btn.active {
  background: rgba(69, 87, 115, 0.14);
  color: #455773;
}

.ko {
  margin-top: 8px;
  font-size: 0.93rem;
  color: #2f4b35;
}

.tapcount {
  margin: 0;
  font-size: 0.82rem;
  color: #4f6b54;
  font-weight: 600;
}

.stats-row {
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tapcount-number {
  color: #9e7225;
  font-weight: 800;
}

.actions {
  margin-top: 10px;
  display: flex;
  gap: 8px;
}

.action-btn {
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 8px 10px;
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
  background: #f4f9f4;
  color: #2f4b35;
  flex: 1;
  transition: background-color 0.15s ease;
}

.action-btn:hover {
  background: #e7f3e9;
}

.action-btn.unknown {
  background: #fff4e6;
  color: #7a4b14;
  border-color: rgba(122, 75, 20, 0.2);
}

.action-btn.unknown:hover {
  background: #ffeacc;
}

.hidden {
  color: var(--muted);
  opacity: 0.45;
}

.empty {
  margin-top: 14px;
  border: 1px dashed var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.55);
  padding: 16px;
  color: var(--muted);
  text-align: center;
}

.site-footer {
  margin: 22px 0 0;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(95, 111, 98, 0.2);
  background: rgba(255, 255, 255, 0.58);
}

.footer-line {
  margin: 0;
  font-size: 0.86rem;
  color: #51655a;
  line-height: 1.5;
}

.footer-line + .footer-line {
  margin-top: 4px;
}

.site-footer a {
  color: #1f5f85;
  text-decoration: none;
  font-weight: 700;
}

.site-footer a:hover {
  text-decoration: underline;
}

.section-title {
  grid-column: 1 / -1;
  margin: 10px 0 2px;
  font-size: 0.9rem;
  font-weight: 800;
  color: #48614f;
  letter-spacing: 0.02em;
}

.section-title.point {
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(122, 75, 20, 0.2);
  background: #fff6eb;
  color: #7a4b14;
}

.section-title.subgroup {
  margin-top: 8px;
  padding-left: 2px;
  color: #1f5f85;
  font-size: 0.88rem;
  font-weight: 800;
}

.section-title.inner-group {
  margin-top: 4px;
  padding-left: 4px;
  color: #59655f;
  font-size: 0.83rem;
  font-weight: 700;
}

.section-title.appendix {
  margin-top: 12px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(74, 82, 112, 0.24);
  background: #eef1fb;
  color: #394777;
}

.section-title.appendix-group {
  margin-top: 6px;
  color: #4d5675;
  font-size: 0.84rem;
  font-weight: 800;
}

.section-toggle {
  grid-column: 1 / -1;
  border: 1px solid rgba(89, 101, 95, 0.2);
  background: #f8fbf8;
  color: #59655f;
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 0.82rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

.section-toggle:hover {
  background: #edf5ee;
}

.section-toggle.appendix-group {
  background: #f1f8ff;
  color: #0b5394;
  border-color: #a7d2ff;
}

@media (max-width: 760px) {
  .sync-fab-wrap {
    top: max(10px, env(safe-area-inset-top));
    left: 10px;
    right: 10px;
    align-items: stretch;
  }

  .sync-fab {
    padding: 6px 10px;
    gap: 7px;
    align-self: flex-end;
  }

  .sync-fab-title {
    font-size: 0.75rem;
  }

  .sync-fab-text {
    font-size: 0.7rem;
    padding: 3px 6px;
  }

  .sync-menu {
    width: 100%;
    max-width: none;
    border-radius: 14px;
  }

  body {
    padding: 18px 14px 24px;
  }

  .hero {
    border-radius: 18px;
    padding: 20px 16px;
  }

  .brand {
    gap: 8px;
    margin-bottom: 8px;
  }

  .site-logo {
    width: 34px;
    height: 34px;
    border-radius: 9px;
  }

  .controls {
    gap: 8px;
  }

  .mini-controls {
    gap: 8px;
  }

  .access-hint {
    font-size: 0.78rem;
    padding: 7px 9px;
  }

  .sync-auth {
    flex-direction: column;
    align-items: stretch;
  }

  .sync-status {
    font-size: 0.78rem;
  }

  .sync-email {
    min-width: 0;
    max-width: none;
    width: 100%;
    min-height: 36px;
    height: 36px;
    max-height: 36px;
    padding: 6px 10px;
    font-size: 0.88rem;
  }

  .sync-password {
    min-width: 0;
    max-width: none;
    width: 100%;
    min-height: 36px;
    height: 36px;
    max-height: 36px;
    padding: 6px 10px;
    font-size: 0.88rem;
  }

  .sync-auth-actions {
    width: 100%;
  }

  .sync-auth .mini-btn {
    width: 100%;
    min-height: 40px;
    white-space: normal;
  }

  .input,
  .btn {
    width: 100%;
  }

  .status-row {
    align-items: center;
    flex-wrap: nowrap;
    gap: 8px;
  }

  .sort-select-compact {
    width: 132px;
    min-width: 132px;
    height: 32px;
    min-height: 32px;
    padding: 0 9px;
    font-size: 0.79rem;
    margin-left: auto;
  }

  .mini-btn {
    width: auto;
  }

  .chapter-toggle {
    display: inline-flex;
    align-items: center;
  }

  .chapter-nav {
    overflow: hidden;
    max-height: 600px;
    opacity: 1;
    margin-top: 16px;
    transition:
      max-height 0.32s ease,
      opacity 0.25s ease,
      margin-top 0.32s ease;
  }

  .chapter-nav.collapsed {
    display: flex;
    max-height: 0;
    opacity: 0;
    margin-top: 0;
  }

  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer {
    margin-top: 18px;
    padding: 12px 13px;
  }

  .footer-line {
    font-size: 0.82rem;
  }
}

/* ─── Dark mode ─────────────────────────────────────────────── */
[data-theme="dark"] {
  --bg-top: #141c16;
  --bg-bottom: #0f1710;
  --panel: rgba(28, 42, 32, 0.88);
  --ink: #ddeae0;
  --muted: #7d9982;
  --accent: #5bbf8a;
  --accent-soft: #1c3828;
  --line: rgba(160, 210, 175, 0.18);
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.38);
}

[data-theme="dark"] body {
  background:
    radial-gradient(
      circle at 15% 10%,
      rgba(80, 60, 20, 0.35) 0%,
      transparent 34%
    ),
    radial-gradient(
      circle at 88% 14%,
      rgba(30, 80, 50, 0.3) 0%,
      transparent 30%
    ),
    linear-gradient(160deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
}

[data-theme="dark"] .hero {
  background: linear-gradient(
    115deg,
    rgba(30, 48, 34, 0.95),
    rgba(20, 36, 24, 0.9)
  );
}

[data-theme="dark"] .hero::after {
  background: radial-gradient(
    circle,
    rgba(100, 70, 20, 0.22) 0%,
    rgba(100, 70, 20, 0) 70%
  );
}

[data-theme="dark"] .access-hint {
  background: rgba(30, 70, 50, 0.6);
  border-color: rgba(91, 191, 138, 0.25);
  color: #7dd8a8;
}

[data-theme="dark"] .sync-fab {
  background: rgba(28, 42, 32, 0.96);
  border-color: rgba(91, 191, 138, 0.25);
  color: #a8d8b8;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.36);
}

[data-theme="dark"] .sync-fab-text {
  background: #1e3428;
  color: #7d9982;
}

[data-theme="dark"] .sync-fab.ok .sync-fab-text {
  background: #1b3d2a;
  color: #5bbf8a;
}

[data-theme="dark"] .sync-fab.error .sync-fab-text {
  background: #3d1f14;
  color: #d4836a;
}

[data-theme="dark"] .sync-menu {
  background: rgba(22, 36, 26, 0.98);
  border-color: rgba(91, 191, 138, 0.18);
}

[data-theme="dark"] .sync-status {
  color: #7d9982;
}

[data-theme="dark"] .sync-status.ok {
  color: #5bbf8a;
}

[data-theme="dark"] .sync-status.error {
  color: #d4836a;
}

[data-theme="dark"] .sync-account {
  color: #8ab89a;
}

[data-theme="dark"] .sync-hint {
  color: #697d6e;
}

[data-theme="dark"] .sync-hint a {
  color: #5a9fd4;
}

[data-theme="dark"] .input {
  background: rgba(24, 38, 28, 0.9);
  color: var(--ink);
}

[data-theme="dark"] .btn:hover {
  background: #1e4a30;
}

[data-theme="dark"] .mini-btn {
  background: rgba(28, 44, 32, 0.9);
  color: #8ab89a;
  border-color: rgba(160, 210, 175, 0.2);
}

[data-theme="dark"] .mini-btn:hover {
  background: #1e3828;
}

[data-theme="dark"] .mini-btn.danger {
  border-color: rgba(154, 75, 44, 0.35);
  color: #d4836a;
  background: rgba(60, 25, 14, 0.7);
}

[data-theme="dark"] .mini-btn.danger:hover {
  background: rgba(80, 32, 18, 0.8);
}

[data-theme="dark"] .chip {
  background: rgba(26, 44, 30, 0.8);
  border-color: rgba(91, 191, 138, 0.22);
}

[data-theme="dark"] .chip.appendix {
  background: rgba(28, 32, 56, 0.8);
  color: #8a96cc;
  border-color: rgba(90, 100, 180, 0.3);
}

[data-theme="dark"] .chip.appendix.active {
  background: #2e3566;
  border-color: #2e3566;
}

[data-theme="dark"] .speak-btn {
  background: #1a3828;
  border-color: rgba(91, 191, 138, 0.25);
  color: #5bbf8a;
}

[data-theme="dark"] .speak-btn:hover {
  background: #1e4230;
}

[data-theme="dark"] .ko {
  color: #a8d8b4;
}

[data-theme="dark"] .tapcount {
  color: #7d9982;
}

[data-theme="dark"] .tapcount-number {
  color: #c4973a;
}

[data-theme="dark"] .action-btn {
  background: #1a2e1e;
  color: #a8d8b4;
  border-color: rgba(160, 210, 175, 0.18);
}

[data-theme="dark"] .action-btn:hover {
  background: #1e3824;
}

[data-theme="dark"] .action-btn.unknown {
  background: #2e1e0a;
  color: #c49050;
  border-color: rgba(196, 144, 80, 0.25);
}

[data-theme="dark"] .action-btn.unknown:hover {
  background: #3a2410;
}

[data-theme="dark"] .empty {
  background: rgba(24, 38, 28, 0.6);
}

[data-theme="dark"] .site-footer {
  background: rgba(22, 36, 26, 0.6);
  border-color: rgba(91, 191, 138, 0.15);
}

[data-theme="dark"] .footer-line {
  color: #6a8070;
}

[data-theme="dark"] .site-footer a {
  color: #5a9fd4;
}

[data-theme="dark"] .section-title {
  color: #7daa86;
}

[data-theme="dark"] .section-title.point {
  border-color: rgba(196, 144, 80, 0.25);
  background: #2a1c0a;
  color: #c49050;
}

[data-theme="dark"] .section-title.subgroup {
  color: #5a9fd4;
}

[data-theme="dark"] .section-title.inner-group {
  color: #7d9982;
}

[data-theme="dark"] .section-title.appendix {
  border-color: rgba(90, 100, 180, 0.25);
  background: #1a1e38;
  color: #8a96cc;
}

[data-theme="dark"] .section-title.appendix-group {
  color: #7880aa;
}

[data-theme="dark"] .section-toggle {
  background: #1a2e1e;
  color: #7d9982;
  border-color: rgba(91, 191, 138, 0.18);
}

[data-theme="dark"] .section-toggle:hover {
  background: #1e3824;
}

[data-theme="dark"] .section-toggle.appendix-group {
  background: #141830;
  color: #6a8cc4;
  border-color: rgba(90, 120, 200, 0.3);
}

[data-theme="dark"] .dark-toggle {
  background: rgba(28, 44, 32, 0.9);
  color: #c4b050;
  border-color: rgba(196, 176, 80, 0.25);
}

[data-theme="dark"] .dark-toggle:hover {
  background: #2a2c14;
}

/* ─── End dark mode ──────────────────────────────────────────── */

@media (max-width: 520px) {
  .sync-fab-wrap {
    left: 8px;
    right: 8px;
  }

  .sync-menu {
    max-height: min(68vh, 420px);
    overflow-y: auto;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .speak-btn {
    min-height: 34px;
    padding: 5px 11px;
  }

  .actions {
    flex-direction: column;
  }

  .action-btn {
    width: 100%;
    min-height: 44px;
  }

  .pin-btn {
    width: 32px;
    height: 32px;
  }
}

/* Flashcard */
.flashcard-launch-btn{border-color:rgba(57,71,119,0.3);color:#394777;background:#eef1fb;}
.flashcard-launch-btn:hover{background:#e0e5f8;}
.fc-modal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:20px;}
.fc-modal[hidden]{display:none;}
.fc-backdrop{position:absolute;inset:0;background:rgba(10,20,14,0.72);backdrop-filter:blur(6px);}
.fc-container{position:relative;z-index:1;width:min(680px,100%);background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--shadow);backdrop-filter:blur(10px);}
.fc-header{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px;}
.fc-chapter-label{font-size:0.88rem;font-weight:800;color:var(--accent);}
.fc-header-actions{display:flex;gap:8px;}
.fc-progress-row{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.fc-progress-text{font-size:0.84rem;font-weight:700;color:var(--muted);white-space:nowrap;}
.fc-progress-bar{flex:1;height:6px;background:var(--line);border-radius:999px;overflow:hidden;}
.fc-progress-fill{height:100%;background:var(--accent);border-radius:999px;transition:width 0.3s ease;}
.fc-card{perspective:1000px;height:260px;cursor:grab;margin-bottom:12px;outline:none;user-select:none;}
.fc-card:active{cursor:grabbing;}
.fc-card:focus-visible{outline:2px solid var(--accent);border-radius:14px;}
.fc-card-inner{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform 0.22s ease;}
.fc-card.flipped .fc-card-inner{transform:rotateY(180deg);}
.fc-card-front,.fc-card-back{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:14px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;padding:24px;}
.fc-card-front{background:rgba(255,255,255,0.92);}
#fcSpeakBtn{position:absolute;top:10px;right:12px;}
.fc-tap-count{position:absolute;top:10px;left:12px;margin:0;font-size:0.75rem;font-weight:700;color:#9e7225;}
@keyframes fc-bump{0%{transform:scale(1)}40%{transform:scale(1.45)}70%{transform:scale(0.9)}100%{transform:scale(1)}}
.fc-tap-count.bump{animation:fc-bump 0.35s ease;}
.fc-card-back{background:var(--accent-soft);transform:rotateY(180deg);}
.fc-word{margin:0;font-size:clamp(1.3rem,4vw,1.8rem);font-weight:800;text-align:center;color:var(--ink);letter-spacing:0.01em;}
.fc-meaning{margin:0;font-size:clamp(1rem,3vw,1.35rem);font-weight:700;text-align:center;color:var(--accent);}
.fc-hint{margin:0 0 16px;text-align:center;font-size:0.76rem;color:var(--muted);}
.fc-nav{display:flex;gap:10px;}
.fc-nav-btn{flex:1;}
.fc-unknown-btn{flex:1;}
.fc-reset-btn{padding:7px 9px;font-size:0.9rem;}
@media(max-width:520px){
  .fc-modal{padding:8px;align-items:stretch;}
  .fc-container{padding:16px 14px;border-radius:16px;display:flex;flex-direction:column;}
  .fc-card{flex:1;height:auto;min-height:180px;}
  .fc-word{font-size:clamp(1.8rem,7vw,2.4rem);}
  .fc-meaning{font-size:clamp(1.4rem,5.5vw,1.8rem);}
  #fcSpeakBtn{top:auto;bottom:10px;right:auto;left:12px;}
}
[data-theme="dark"] .fc-card-front{background:rgba(28,46,34,0.95);}
[data-theme="dark"] .flashcard-launch-btn{background:rgba(28,32,56,0.8);color:#8a96cc;border-color:rgba(90,100,180,0.3);}
[data-theme="dark"] .flashcard-launch-btn:hover{background:rgba(38,44,80,0.9);}