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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

button,
input,
select {
  font: inherit;
}

a {
  color: var(--accent);
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

:root {
  --content-max: 760px;
  --content-pad: 16px;
  --card-pad: 20px;
  --content-left: calc((100vw - min(var(--content-max), 100vw)) / 2 + var(--content-pad));
  /* Right edge of the Look up button row (main pad + card pad). */
  --content-right-inset: calc(var(--content-pad) + var(--card-pad));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  position: relative;
  width: 100%;
  margin: 0 auto;
  padding: 10px var(--content-pad);
  min-height: 52px;
}

.brand {
  position: absolute;
  top: 50%;
  right: calc((100vw - min(var(--content-max), 100vw)) / 2 + var(--content-right-inset));
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}

.brand-icon {
  border-radius: 8px;
}

.app-promo {
  position: fixed;
  left: 50%;
  bottom: max(16px, env(safe-area-inset-bottom, 16px));
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  width: min(560px, calc(100vw - 32px));
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--nav);
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.88rem;
  line-height: 1.45;
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.app-promo-text {
  margin: 0;
  flex: 1;
}

.app-promo-text a {
  color: #c8bcff;
  font-weight: 600;
}

.app-promo-dismiss {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 2px 7px;
  border-radius: 999px;
  flex-shrink: 0;
}

body.has-app-promo .main {
  padding-bottom: 96px;
}

.site-nav {
  display: none;
  gap: 4px;
  flex-wrap: wrap;
  position: absolute;
  left: var(--content-left);
  top: 50%;
  transform: translateY(-50%);
}

.nav-link {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.78);
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.menu-toggle {
  position: absolute;
  right: var(--content-pad);
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
}

.mobile-drawer {
  background: var(--nav);
  color: #fff;
  padding: 12px 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.drawer-nav .nav-link {
  text-align: left;
  width: 100%;
}

.main {
  flex: 1;
  max-width: var(--content-max);
  width: 100%;
  margin: 0 auto;
  padding: 20px var(--content-pad) 40px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: var(--card-pad);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.card-title {
  margin: 0 0 14px;
  font-size: 1.35rem;
}

.search-wrap {
  position: relative;
  margin-bottom: 16px;
}

.search-row {
  display: flex;
  gap: 10px;
}

.suggest-dropdown {
  position: absolute;
  left: 0;
  right: 88px;
  top: calc(100% + 4px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  z-index: 20;
}

.suggest-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  border: none;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.suggest-item:hover,
.suggest-item.active {
  background: var(--card2);
}

.search-input {
  flex: 1;
  min-width: 0;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text);
}

.btn {
  border: 1px solid var(--border);
  background: var(--card2);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 16px;
  cursor: pointer;
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

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

.status {
  margin: 8px 0;
}

.status.muted {
  color: var(--text3);
}

.status.error {
  color: #c0392b;
}

.entry-title {
  margin: 0;
  font-size: 1.8rem;
  line-height: 1.2;
}

.entry-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.entry-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.speak-btn,
.heart {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 999px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  color: var(--text2);
}

.heart.saved {
  color: #e05252;
}

.phonetic,
.translation {
  margin: 6px 0 12px;
}

.translation {
  color: var(--accent2);
  font-weight: 600;
}

.homograph-note {
  color: var(--text2);
  font-size: 0.92em;
}

.def-block {
  margin: 14px 0;
  padding-left: 12px;
  border-left: 3px solid var(--border);
}

.def-row {
  display: flex;
  gap: 8px;
  align-items: baseline;
  flex-wrap: wrap;
}

.pos-badge {
  background: var(--accent);
  color: #fff;
  border-radius: 5px;
  padding: 1px 8px;
  font-size: 0.78em;
  font-weight: 600;
}

.def-example {
  color: var(--text2);
  font-style: italic;
  margin: 4px 0 4px 8px;
  padding-left: 8px;
  border-left: 2px solid var(--border);
}

.tip-line {
  color: var(--text2);
  margin: 4px 0;
  padding-left: 10px;
  border-left: 2px solid var(--border);
  line-height: 1.5;
}

.homograph-link,
.related-word {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-style: dotted;
}

.related-row {
  flex-wrap: wrap;
  align-items: center;
}

.related-note {
  color: var(--text3, var(--muted, #888));
  font-size: 0.9em;
  line-height: 1.35;
}

.def-meaning-inline {
  color: var(--text);
  flex: 1;
  min-width: 0;
}

.syn-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
  font-size: 0.88em;
}

.syn-label {
  color: var(--accent);
  font-weight: 600;
}

.ant-label {
  color: var(--accent2);
  font-weight: 600;
}

.syn-word,
.ant-word {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0 2px;
  text-decoration: underline;
  text-decoration-style: dotted;
}

.syn-word {
  color: var(--accent);
}

.ant-word {
  color: var(--accent2);
}

.entry-section {
  margin-top: 6px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.section-header {
  font-size: 0.78em;
  color: var(--text3);
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.form-label {
  color: var(--text3);
  font-size: 0.88em;
}

.form-word {
  color: var(--text);
  font-weight: 600;
}

.form-row .speak-btn {
  width: 28px;
  height: 28px;
  font-size: 0.75rem;
}

.collo-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.collo-chip {
  background: rgba(0, 0, 0, 0.04);
  border-radius: 6px;
  padding: 5px 10px;
  color: var(--text);
  font-size: 0.92em;
}

.word-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.word-list-btn {
  width: 100%;
  text-align: left;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 8px;
  cursor: pointer;
  color: var(--text);
}

.audio-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--card2);
  border: 1px solid var(--border);
  margin-bottom: 10px;
}

.audio-play {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

.audio-play.playing {
  background: var(--accent2);
}

.article-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 12px 0;
}

.article-title {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.35;
  flex: 1;
}

.article-body {
  white-space: pre-wrap;
  line-height: 1.65;
}

.spark-theme {
  color: var(--accent2);
  font-weight: 600;
  margin-bottom: 8px;
}

.pulse-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.tab {
  border: 1px solid var(--border);
  background: var(--card2);
  color: var(--text);
  border-radius: 999px;
  padding: 7px 12px;
  cursor: pointer;
  font-size: 0.88rem;
}

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

.pulse-separator {
  border: none;
  border-top: 1px solid var(--border);
  margin: 28px 0;
}

.pulse-summary {
  line-height: 1.65;
}

.pulse-highlight {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: var(--accent);
  font-weight: 700;
  border-bottom: 1.5px dotted var(--accent);
  font: inherit;
}

.field-label {
  margin: 16px 0 6px;
  font-weight: 600;
  color: var(--text2);
}

.select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text);
}

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

.seg {
  flex: 1;
  min-width: 72px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card2);
  cursor: pointer;
}

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

.checkbox-grid {
  display: grid;
  gap: 8px;
}

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--text2);
}

.about-body {
  color: var(--text2);
  line-height: 1.65;
}

.about-h2 {
  margin: 20px 0 8px;
  font-size: 1rem;
}

.about-footer {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--text3);
  font-size: 0.82rem;
}

@media (min-width: 860px) {
  .site-nav {
    display: flex;
  }

  .menu-toggle,
  .mobile-drawer {
    display: none;
  }

  .main {
    padding-top: 28px;
  }
}

@media (max-width: 859px) {
  .brand {
    /* Sit just left of the Menu button on small screens. */
    right: calc(var(--content-pad) + 72px);
  }

  .suggest-dropdown {
    right: 0;
  }
}