:root {
  --bg: #f8f7f4;
  --surface: #ffffff;
  --border: #e2ddd6;
  --text: #1a1714;
  --text-muted: #6b6560;
  --text-light: #9e9890;
  --accent: #b5321a;
  --accent-light: #f5ede9;
  --accent-mid: #d4533d;
  --tag-bg: #f0ede8;
  --tag-text: #4a4540;
  --font-serif: 'Georgia', 'Times New Roman', serif;
  --font-mono: 'Courier New', Courier, monospace;
  --radius: 6px;
  --shadow: 0 1px 4px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-serif);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── HEADER ─────────────────────────────── */
header {
  background: var(--surface);
  border-bottom: 2px solid var(--accent);
  padding: 0 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 56px;
}

.logo {
  font-size: 1.15rem;
  font-weight: bold;
  color: var(--text);
  letter-spacing: -0.02em;
  white-space: nowrap;
  flex-shrink: 0;
}

.logo span { color: var(--accent); }

.search-wrap {
  flex: 1;
  position: relative;
  max-width: 480px;
}

#search {
  width: 100%;
  padding: 0.45rem 0.75rem 0.45rem 2.2rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
}

#search:focus { border-color: var(--accent); background: var(--surface); }

.search-icon {
  position: absolute;
  left: 0.6rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  font-size: 0.85rem;
  pointer-events: none;
}

.header-actions { display: flex; gap: 0.5rem; flex-shrink: 0; }

.btn-icon {
  background: none;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 0.35rem 0.6rem;
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn-icon:hover { border-color: var(--accent); color: var(--accent); }
.btn-icon.active { background: var(--accent-light); border-color: var(--accent); color: var(--accent); }

/* ── LAYOUT ─────────────────────────────── */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem;
}

/* ── FILTER BAR ─────────────────────────── */
.filter-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  font-family: 'Arial', sans-serif;
  flex-shrink: 0;
  width: 60px;
}

.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  flex: 1;
}

.pill {
  padding: 0.2rem 0.55rem;
  border-radius: 20px;
  border: 1.5px solid var(--border);
  font-size: 0.78rem;
  cursor: pointer;
  font-family: 'Arial', sans-serif;
  color: var(--tag-text);
  background: var(--surface);
  transition: all 0.12s;
  user-select: none;
}

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

.specialty-select {
  padding: 0.25rem 0.6rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-serif);
  font-size: 0.85rem;
  background: var(--surface);
  color: var(--text);
  outline: none;
  cursor: pointer;
  flex: 1;
  max-width: 240px;
}

.specialty-select:focus { border-color: var(--accent); }

/* ── RESULTS META ────────────────────────── */
.results-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: 'Arial', sans-serif;
}

.sort-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: 'Arial', sans-serif;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.sort-btn:hover { color: var(--accent); }

/* ── TERM GRID ───────────────────────────── */
#terms-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

/* ── TERM CARD ───────────────────────────── */
.term-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  cursor: pointer;
  transition: all 0.12s;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.25rem 1rem;
  align-items: start;
}

.term-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.term-name {
  font-size: 1.05rem;
  font-weight: bold;
  color: var(--text);
  line-height: 1.3;
}

.term-pronunc {
  font-size: 0.78rem;
  color: var(--text-light);
  font-style: italic;
  font-family: 'Arial', sans-serif;
}

.term-meaning {
  font-size: 0.88rem;
  color: var(--text-muted);
  grid-column: 1;
  margin-top: 0.15rem;
  line-height: 1.4;
}

.term-right {
  grid-column: 2;
  grid-row: 1 / 3;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.3rem;
}

.specialty-tag {
  font-size: 0.7rem;
  font-family: 'Arial', sans-serif;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  background: var(--tag-bg);
  color: var(--tag-text);
  white-space: nowrap;
}

.fav-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  opacity: 0.35;
  transition: opacity 0.15s, transform 0.15s;
  padding: 0;
  line-height: 1;
}

.fav-btn:hover { opacity: 0.7; transform: scale(1.2); }
.fav-btn.active { opacity: 1; }

/* ── EMPTY STATE ─────────────────────────── */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

.empty-state .emoji { font-size: 2.5rem; margin-bottom: 0.75rem; }
.empty-state h3 { font-size: 1rem; margin-bottom: 0.3rem; }
.empty-state p { font-size: 0.85rem; }

/* ── MODAL / TERM PAGE ───────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26,23,20,0.5);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--surface);
  width: 100%;
  max-width: 640px;
  max-height: 88vh;
  overflow-y: auto;
  border-radius: 12px 12px 0 0;
  padding: 1.5rem 1.25rem 2rem;
  transform: translateY(40px);
  transition: transform 0.2s;
  position: relative;
}

.modal-overlay.open .modal { transform: translateY(0); }

.modal-handle {
  width: 36px;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin: 0 auto 1.25rem;
}

.modal-close {
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  background: var(--tag-bg);
  border: none;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.modal-close:hover { background: var(--accent-light); color: var(--accent); }

.modal-term {
  font-size: 1.6rem;
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 0.2rem;
}

.modal-pronunc {
  font-size: 0.9rem;
  color: var(--text-light);
  font-style: italic;
  margin-bottom: 0.75rem;
  font-family: 'Arial', sans-serif;
}

.modal-pronunc span {
  background: var(--tag-bg);
  padding: 0.1rem 0.5rem;
  border-radius: 3px;
  font-style: normal;
  font-size: 0.82rem;
}

.modal-section {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.modal-section:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.modal-section-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  font-family: 'Arial', sans-serif;
  margin-bottom: 0.3rem;
}

.modal-etymology {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--accent);
  background: var(--accent-light);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  border-left: 3px solid var(--accent);
}

.modal-meaning {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text);
}

.modal-specialty {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-family: 'Arial', sans-serif;
  padding: 0.25rem 0.7rem;
  background: var(--tag-bg);
  border-radius: 3px;
  color: var(--tag-text);
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.btn-action {
  flex: 1;
  padding: 0.6rem;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.btn-action:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-light); }
.btn-action.active { background: var(--accent-light); border-color: var(--accent); color: var(--accent); }

/* ── PANEL (Favs / Recent) ───────────────── */
.panel-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26,23,20,0.4);
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.panel-overlay.open { opacity: 1; pointer-events: all; }

.panel {
  position: fixed;
  top: 56px;
  right: 0;
  width: min(320px, 90vw);
  height: calc(100vh - 56px);
  background: var(--surface);
  border-left: 1px solid var(--border);
  z-index: 160;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.2s;
  padding: 1rem;
}

.panel.open { transform: translateX(0); }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.panel-title {
  font-size: 0.95rem;
  font-weight: bold;
}

.panel-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--text-muted);
  padding: 0;
  line-height: 1;
}

.panel-item {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.panel-item:last-child { border-bottom: none; }
.panel-item:hover .panel-term { color: var(--accent); }

.panel-term {
  font-size: 0.92rem;
  font-weight: bold;
  transition: color 0.12s;
}

.panel-spec {
  font-size: 0.75rem;
  font-family: 'Arial', sans-serif;
  color: var(--text-light);
}

.panel-empty {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 2rem 0;
}

/* ── FOOTER ─────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 1rem;
  margin-top: 2rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-light);
  font-family: 'Arial', sans-serif;
}

footer a { color: var(--text-muted); }
footer a:hover { color: var(--accent); }

/* ── TERM PAGE (standalone) ─────────────── */
.term-page {
  max-width: 680px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.term-page-back {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-family: 'Arial', sans-serif;
}

.term-page-back:hover { color: var(--accent); text-decoration: none; }

.term-page-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

/* ── TOAST ───────────────────────────────── */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--text);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.82rem;
  font-family: 'Arial', sans-serif;
  z-index: 999;
  transition: transform 0.25s;
  pointer-events: none;
  white-space: nowrap;
}

.toast.show { transform: translateX(-50%) translateY(0); }

/* ── RESPONSIVE ─────────────────────────── */
@media (min-width: 600px) {
  #terms-grid {
    grid-template-columns: 1fr 1fr;
  }

  .modal {
    border-radius: 12px;
    margin: auto;
    max-height: 80vh;
  }

  .modal-overlay {
    align-items: center;
    padding: 1rem;
  }
}

@media (min-width: 900px) {
  #terms-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .header-inner { gap: 0.5rem; }
  .logo { font-size: 1rem; }
  .btn-icon .label { display: none; }
  .filter-label { display: none; }
}