.vocab-body {
  background: #f3f7fc;
}

.vocab-page {
  overflow: hidden;
}

.vocab-page [hidden] { display: none !important; }

.vocab-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.72fr);
  gap: clamp(36px, 6vw, 92px);
  align-items: center;
  min-height: 690px;
  padding: clamp(70px, 8vw, 118px) clamp(20px, 6vw, 92px);
  background:
    radial-gradient(circle at 82% 13%, rgba(201, 145, 47, 0.22), transparent 30%),
    linear-gradient(128deg, #ffffff 0%, #edf5ff 58%, #fff8eb 100%);
}

.vocab-hero-copy {
  max-width: 820px;
}

.vocab-hero h1 {
  margin-bottom: 24px;
  color: #071d47;
  font-size: clamp(48px, 7.2vw, 94px);
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.vocab-hero h1 span {
  color: var(--blue);
}

.vocab-lead {
  max-width: 760px;
  margin-bottom: 28px;
  color: #536781;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.75;
}

.vocab-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.vocab-disclaimer {
  max-width: 780px;
  margin: 0;
  padding: 15px 18px;
  color: #5e6674;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(201, 145, 47, 0.3);
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.65;
}

.vocab-hero-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.vocab-hero-panel article {
  min-height: 190px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(205, 218, 236, 0.92);
  border-radius: 22px;
  box-shadow: 0 18px 45px rgba(10, 41, 82, 0.08);
}

.vocab-hero-panel article:nth-child(1) {
  color: #fff;
  background: linear-gradient(145deg, #0a4b9d, #061f4b);
  border-color: transparent;
}

.vocab-hero-panel article:nth-child(4) {
  background: #fff6e6;
  border-color: #efd9ac;
}

.vocab-hero-panel span,
.vocab-progress-card > span {
  display: block;
  margin-bottom: 18px;
  color: var(--gold);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.vocab-hero-panel strong {
  display: block;
  margin-bottom: 2px;
  font-size: clamp(36px, 4vw, 54px);
  line-height: 1;
}

.vocab-hero-panel p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.vocab-hero-panel article:first-child p {
  color: rgba(255, 255, 255, 0.68);
}

.vocab-library {
  width: min(1440px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(68px, 8vw, 116px) 0;
}

.vocab-library-heading {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: end;
  margin-bottom: 30px;
}

.vocab-library-heading h2 {
  margin-bottom: 10px;
}

.vocab-library-heading p:not(.eyebrow) {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
}

.vocab-progress-card {
  flex: 0 0 260px;
  padding: 20px 22px;
  color: #fff;
  background: var(--navy);
  border-radius: 18px;
  box-shadow: 0 16px 38px rgba(6, 28, 70, 0.18);
}

.vocab-progress-card > span {
  margin-bottom: 8px;
}

.vocab-progress-card strong {
  font-size: 24px;
}

.vocab-progress-card > div {
  height: 6px;
  margin-top: 13px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 999px;
}

.vocab-progress-card i {
  display: block;
  width: 0;
  height: 100%;
  background: #f2c66e;
  border-radius: inherit;
  transition: width 220ms ease;
}

.vocab-account-card { flex: 0 0 290px; }
.vocab-account-guest {
  min-height: 154px;
  padding: 20px 22px;
  color: #fff;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 18px;
  box-shadow: 0 16px 38px rgba(6, 28, 70, .18);
}
.vocab-account-guest span { display: block; margin-bottom: 8px; color: #f2c66e; font-size: 11px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.vocab-account-guest strong { display: block; font-size: 16px; }
.vocab-account-guest p { margin: 7px 0 14px; color: rgba(255,255,255,.72); font-size: 12px; line-height: 1.5; }
.vocab-account-guest a, .vocab-account-user a { display: inline-flex; padding: 8px 12px; border-radius: 8px; color: #fff; background: var(--gold); font-size: 12px; font-weight: 850; text-decoration: none; }
.vocab-account-user.vocab-progress-card { min-height: 154px; }
.vocab-account-user small { display: block; margin: 9px 0 12px; color: rgba(255,255,255,.7); font-size: 11px; }
.vocab-account-user a { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.24); }

.vocab-toolbar {
  position: relative;
  z-index: 2;
  padding: clamp(20px, 3vw, 32px);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 20px 55px rgba(11, 42, 84, 0.09);
}

.vocab-list-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
  padding: 6px;
  background: #edf3fa;
  border-radius: 16px;
}

.vocab-list-switch button {
  display: flex;
  justify-content: center;
  gap: 12px;
  align-items: baseline;
  padding: 15px 18px;
  color: #50637c;
  background: transparent;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
}

.vocab-list-switch button strong {
  font-size: 17px;
}

.vocab-list-switch button span {
  font-size: 12px;
}

.vocab-list-switch button.is-active {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 8px 18px rgba(7, 61, 143, 0.22);
}

.vocab-search {
  position: relative;
  display: block;
  margin-bottom: 18px;
}

.vocab-search > span,
.vocab-filter-grid label > span {
  display: block;
  margin-bottom: 7px;
  color: #52657e;
  font-size: 12px;
  font-weight: 850;
}

.vocab-search input,
.vocab-filter-grid select {
  width: 100%;
  height: 50px;
  color: #142b50;
  background: #f8fbff;
  border: 1px solid #cfdbea;
  border-radius: 12px;
  font: inherit;
  outline: none;
}

.vocab-search input {
  height: 58px;
  padding: 0 82px 0 18px;
  font-size: 16px;
}

.vocab-filter-grid select {
  padding: 0 34px 0 13px;
  cursor: pointer;
}

.vocab-search input:focus,
.vocab-filter-grid select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(7, 61, 143, 0.12);
}

.vocab-search kbd {
  position: absolute;
  right: 14px;
  bottom: 13px;
  padding: 5px 8px;
  color: #6c7d91;
  background: #fff;
  border: 1px solid #d6e0eb;
  border-radius: 7px;
  font-family: inherit;
  font-size: 11px;
}

.vocab-filter-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.vocab-toolbar-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid #e4ebf4;
}

.vocab-quick-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.vocab-quick-filters button,
.vocab-reset,
.vocab-view-switch button,
.vocab-pagination button,
.vocab-empty button {
  padding: 9px 13px;
  color: #23466f;
  background: #eef5ff;
  border: 1px solid #d2e0f0;
  border-radius: 999px;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.vocab-quick-filters button:hover,
.vocab-quick-filters button.is-active {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.vocab-reset {
  color: #805d22;
  background: #fff7e9;
  border-color: #ecd8b1;
}

.vocab-results-bar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  margin: 26px 0 16px;
}

.vocab-results-bar p {
  margin: 0;
  color: #475e7a;
  font-weight: 750;
}

.vocab-result-actions { display: flex; align-items: center; gap: 10px; }
.vocab-export-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 8px 13px;
  color: var(--blue);
  background: #f1f6fd;
  border: 1px solid #bccde3;
  border-radius: 9px;
  font: inherit;
  font-size: 12px;
  font-weight: 850;
  cursor: pointer;
}
.vocab-export-button span { padding: 3px 5px; color: #fff; background: var(--gold); border-radius: 4px; font-size: 10px; }
.vocab-export-button:hover { background: #e7f0fc; border-color: var(--blue); }
.vocab-export-button:disabled { opacity: .48; cursor: not-allowed; }
.vocab-export-status { display: block; min-height: 1.2em; margin-top: 4px; color: var(--muted); font-size: 12px; }
.vocab-loading button { margin-top: 12px; padding: 9px 14px; color: var(--blue); background: #eef5ff; border: 1px solid #cad9eb; border-radius: 9px; font: inherit; font-weight: 800; cursor: pointer; }

.vocab-view-switch {
  display: flex;
  gap: 6px;
}

.vocab-view-switch button.is-active {
  color: #fff;
  background: var(--navy);
  border-color: var(--navy);
}

.vocab-loading {
  display: grid;
  min-height: 320px;
  place-items: center;
  align-content: center;
  color: var(--muted);
}

.vocab-loading span {
  width: 42px;
  height: 42px;
  border: 4px solid #dce7f5;
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: vocab-spin 0.8s linear infinite;
}

@keyframes vocab-spin {
  to { transform: rotate(360deg); }
}

.vocab-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.vocab-card {
  display: flex;
  min-height: 430px;
  flex-direction: column;
  padding: 22px;
  background: #fff;
  border: 1px solid #dbe5f1;
  border-radius: 20px;
  box-shadow: 0 12px 30px rgba(9, 37, 76, 0.06);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.vocab-card:hover {
  border-color: #b9cae0;
  box-shadow: 0 18px 38px rgba(9, 37, 76, 0.1);
  transform: translateY(-2px);
}

.vocab-card.is-mastered {
  border-color: #98cbb8;
  background: linear-gradient(180deg, #fff 0%, #f2fbf7 100%);
}

.vocab-card-header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
}

.vocab-rank {
  display: inline-flex;
  margin-bottom: 7px;
  color: #728299;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.06em;
}

.vocab-word {
  margin: 0;
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 32px;
  line-height: 1.05;
  overflow-wrap: anywhere;
}

.vocab-phonetic {
  margin: 7px 0 0;
  color: #65778e;
  font-size: 13px;
}

.vocab-speak {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  color: var(--blue);
  background: #edf5ff;
  border: 1px solid #d2e1f3;
  border-radius: 50%;
  cursor: pointer;
}

.vocab-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed #dce5ef;
}

.vocab-badges span {
  padding: 3px 7px;
  color: #718096;
  background: #f4f7fa;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  font-size: 10px;
  line-height: 1.35;
}

.vocab-badge {
  padding: 5px 8px;
  color: #3f5876;
  background: #eef3f9;
  border-radius: 7px;
  font-size: 10px;
  font-weight: 850;
}

.vocab-badge.academic {
  color: #75500d;
  background: #fff0c9;
}

.vocab-badge.hit {
  color: #0b6247;
  background: #dcf5ea;
}

.vocab-chinese {
  margin-bottom: 16px;
  color: #142b50;
  font-size: 15px;
  line-height: 1.7;
  white-space: pre-line;
}

.vocab-memory {
  margin: 0 0 14px;
  padding: 14px;
  color: #61491f;
  background: #fff8ea;
  border-left: 3px solid var(--gold);
  border-radius: 10px;
  font-size: 12px;
  line-height: 1.65;
}

.vocab-memory strong,
.vocab-exam-use strong {
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
}

.vocab-exam-use {
  margin: 0 0 14px;
  color: #46617f;
  font-size: 12px;
  line-height: 1.6;
}

.vocab-card details {
  margin-top: auto;
  padding-top: 13px;
  border-top: 1px solid #e4ebf3;
}

.vocab-card summary {
  color: var(--blue);
  font-size: 12px;
  font-weight: 850;
  cursor: pointer;
}

.vocab-card details p {
  margin: 10px 0 0;
  color: #66788e;
  font-size: 11px;
  line-height: 1.6;
}

.vocab-card-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 15px;
}

.vocab-card-actions button {
  min-height: 40px;
  color: #415a77;
  background: #f3f7fb;
  border: 1px solid #d8e2ed;
  border-radius: 10px;
  font: inherit;
  font-size: 11px;
  font-weight: 850;
  cursor: pointer;
}

.vocab-card-actions button.is-active[data-action="favorite"] {
  color: #8a6118;
  background: #fff3d8;
  border-color: #edcf8c;
}

.vocab-card-actions button.is-active[data-action="mastered"] {
  color: #0d6549;
  background: #dff5eb;
  border-color: #a7dac7;
}

.vocab-card-grid.is-compact {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.vocab-card-grid.is-compact .vocab-card {
  min-height: 0;
  padding: 16px 18px;
}

.vocab-card-grid.is-compact .vocab-word {
  font-size: 24px;
}

.vocab-card-grid.is-compact .vocab-chinese {
  margin: 10px 0;
  font-size: 13px;
}

.vocab-card-grid.is-compact .vocab-memory,
.vocab-card-grid.is-compact .vocab-exam-use,
.vocab-card-grid.is-compact details {
  display: none;
}

.vocab-card-grid.is-compact .vocab-badges {
  margin: 12px 0 0;
  padding-top: 10px;
}

.vocab-empty {
  min-height: 300px;
  padding: 60px 20px;
  text-align: center;
  background: #fff;
  border: 1px dashed #c7d5e6;
  border-radius: 20px;
}

.vocab-empty strong {
  display: block;
  font-size: 22px;
}

.vocab-empty p {
  color: var(--muted);
}

.vocab-pagination {
  display: flex;
  justify-content: center;
  gap: 16px;
  align-items: center;
  margin-top: 28px;
}

.vocab-pagination button {
  min-width: 110px;
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.vocab-pagination button:disabled {
  color: #8c9aab;
  background: #e7edf4;
  border-color: #dce4ed;
  cursor: not-allowed;
}

.vocab-pagination span {
  min-width: 100px;
  color: #4c617c;
  text-align: center;
  font-size: 13px;
  font-weight: 800;
}

.vocab-methodology {
  padding: clamp(72px, 8vw, 116px) clamp(20px, 6vw, 92px);
  background: var(--navy);
  color: #fff;
}

.vocab-methodology .section-heading p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.68);
}

.vocab-method-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 15px;
  max-width: 1380px;
  margin: 42px auto 24px;
}

.vocab-method-grid article {
  min-height: 290px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 18px;
}

.vocab-method-grid article > span {
  display: inline-grid;
  width: 42px;
  height: 42px;
  margin-bottom: 40px;
  place-items: center;
  color: #ffe0a2;
  background: rgba(201, 145, 47, 0.17);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 900;
}

.vocab-method-grid p {
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.75;
}

.vocab-source-details {
  max-width: 1380px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 16px;
}

.vocab-source-details summary {
  padding: 19px 22px;
  color: #ffe0a2;
  font-weight: 850;
  cursor: pointer;
}

.vocab-source-details > div {
  padding: 0 22px 22px;
  color: rgba(255, 255, 255, 0.72);
}

.vocab-source-details a {
  color: #ffe0a2;
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 1120px) {
  .vocab-hero {
    grid-template-columns: 1fr;
  }

  .vocab-hero-panel {
    max-width: 760px;
  }

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

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

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

@media (max-width: 760px) {
  .vocab-hero {
    min-height: auto;
    padding-top: 52px;
  }

  .vocab-hero h1 {
    font-size: clamp(44px, 15vw, 68px);
  }

  .vocab-hero-panel {
    grid-template-columns: 1fr 1fr;
  }

  .vocab-hero-panel article {
    min-height: 150px;
    padding: 18px;
  }

  .vocab-library {
    width: min(100% - 22px, 1440px);
  }

  .vocab-library-heading,
  .vocab-toolbar-footer,
  .vocab-results-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .vocab-progress-card {
    flex-basis: auto;
  }

  .vocab-account-card { width: 100%; flex-basis: auto; }
  .vocab-account-guest, .vocab-account-user.vocab-progress-card { min-height: auto; }
  .vocab-result-actions { width: 100%; justify-content: space-between; }

  .vocab-list-switch button {
    align-items: center;
    flex-direction: column;
    gap: 2px;
  }

  .vocab-filter-grid,
  .vocab-card-grid,
  .vocab-card-grid.is-compact,
  .vocab-method-grid {
    grid-template-columns: 1fr;
  }

  .vocab-search kbd {
    display: none;
  }

  .vocab-search input {
    padding-right: 16px;
  }

  .vocab-card {
    min-height: 0;
  }

  .vocab-pagination {
    gap: 8px;
  }

  .vocab-pagination button {
    min-width: 0;
  }

  .vocab-method-grid article {
    min-height: 0;
  }
}

@media (max-width: 430px) {
  .vocab-hero-panel {
    grid-template-columns: 1fr;
  }

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

  .vocab-result-actions { align-items: stretch; flex-direction: column; }
  .vocab-export-button { justify-content: center; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .vocab-card,
  .vocab-progress-card i {
    transition: none;
  }
}