/* platform-page.css — shared styles for platform landing pages */
@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

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

:root {
  --bg: #eff2f5;
  --surface: #f0f4f8;
  --card-bg: #ffffff;
  --card-footer-bg: #f5f7fa;
  --footer-bg: #e4e9ef;
  --border: #c8d2de;
  --border-strong: #b0bdd0;
  --text: #111827;
  --text-2: #4a5568;
  --text-3: #8a9ab5;
  --accent-light: #dde6f5;
  --green: #1e6e46;
  --green-bg: #e6f4ed;
  --btn-bg: #0f1f3d;
  --btn-hover: #1a3461;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(15,31,61,0.08), 0 4px 20px rgba(15,31,61,0.08);
  --shadow-lg: 0 8px 32px rgba(15,31,61,0.14);
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --platform-color: var(--btn-bg);
  --platform-color-light: var(--accent-light);
}

html { font-size: 16px; scroll-padding-top: 72px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ── HEADER ── */
header {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 14px 40px;
  position: sticky;
  top: 0;
  background: rgba(239,242,245,0.70);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.logo { font-family: var(--font-mono); font-weight: 500; font-size: 0.95rem; color: var(--text); }
.logo a { text-decoration: none; color: inherit; }

nav { display: flex; flex-direction: row; align-items: center; gap: 28px; }
nav a { text-decoration: none; color: var(--text-2); font-size: 0.85rem; transition: color 0.15s; }
nav a:hover { color: var(--text); }

/* ── NAV DROPDOWN ── */
.nav-dropdown { position: relative; }

.nav-dropdown-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0;
  transition: color 0.15s;
}

.nav-dropdown-btn:hover { color: var(--text); }

.nav-dropdown-arrow {
  font-size: 0.6rem;
  transition: transform 0.18s;
  opacity: 0.6;
  display: inline-block;
}

.nav-dropdown.open .nav-dropdown-arrow { transform: rotate(180deg); }

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 28px rgba(15,31,61,0.13);
  min-width: 220px;
  z-index: 200;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.15s, transform 0.15s;
  pointer-events: none;
}

.nav-dropdown.open .nav-dropdown-menu {
  display: block;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.nav-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  text-decoration: none;
  font-size: 0.85rem;
  color: var(--text-2);
  transition: background 0.1s, color 0.1s;
  white-space: nowrap;
}

.nav-dropdown-menu a:hover { background: var(--surface); color: var(--text); }

.nav-dropdown-menu a.current {
  color: var(--btn-bg);
  font-weight: 600;
  background: var(--accent-light);
}

.nav-dropdown-divider { height: 1px; background: var(--border); margin: 4px 0; }

/* ── PLATFORM HERO ── */
.platform-hero {
  text-align: center;
  padding: 44px 24px 32px;
  max-width: 780px;
  margin: 0 auto;
  width: 100%;
}

.platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--platform-color-light);
  border: 1px solid var(--platform-color);
  color: var(--platform-color);
  border-radius: 100px;
  padding: 5px 16px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 18px;
  opacity: 0.9;
}

.platform-hero h1 {
  font-family: var(--font-body);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: 14px;
}

.platform-hero p {
  font-size: 1rem;
  color: var(--text-2);
  font-weight: 300;
  line-height: 1.6;
  max-width: 520px;
  margin: 0 auto;
}

/* ── GENERATOR WRAP ── */
.generator-wrap {
  max-width: 780px;
  margin: 0 auto 28px;
  width: 100%;
  padding: 0 24px;
}

/* ── MAIN ── */
main {
  flex: 1;
  max-width: 780px;
  margin: 0 auto;
  width: 100%;
  padding: 0 24px 80px;
}

/* ── CARD ── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card-body {
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* ── LABELS ── */
.label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-3);
  white-space: nowrap;
  display: block;
  margin-bottom: 8px;
}

/* ── INPUT ── */
.input-wrap {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
  background: var(--card-bg);
}

.input-wrap:focus-within {
  border-color: var(--platform-color);
  box-shadow: 0 0 0 3px rgba(15,31,61,0.08);
}

input[type="text"] {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  padding: 13px 18px;
  font-size: 0.95rem;
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--text);
  min-width: 0;
}

input[type="text"]::placeholder { color: var(--text-3); }

.generate-btn {
  background: var(--platform-color);
  border: none;
  color: #fff;
  padding: 12px 22px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: background 0.15s;
  min-height: 46px;
}

.generate-btn:hover { filter: brightness(1.15); }
.generate-btn:active { filter: brightness(0.92); }

.btn-arrow { transition: transform 0.15s; }
.generate-btn:hover .btn-arrow { transform: translateX(3px); }

.generate-btn.loading .btn-label,
.generate-btn.loading .btn-arrow { display: none; }
.generate-btn.loading::after {
  content: '';
  width: 15px;
  height: 15px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

/* ── RULES HINT ── */
.rules-hint {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--green);
  font-family: var(--font-body);
  font-weight: 400;
}

/* ── THINKING FOOTER ── */
.card-thinking {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 26px;
  background: var(--card-footer-bg);
  border-top: 1px solid var(--border);
  min-height: 42px;
}

.thinking-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  animation: pulse 1.0s ease-in-out infinite;
}

.thinking-dot.done {
  animation: none;
}
.thinking-dot.error {
  animation: none;
  background: #FF0000;
}

.thinking-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: 0.04em;
  white-space: nowrap;
  flex-shrink: 0;
}

.thinking-current {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
  flex: 1;
  transition: opacity 0.12s;
}

.thinking-current::before { content: '/ '; color: var(--platform-color); opacity: 0.4; }

/* ── RESULTS ── */
.results-section { margin-bottom: 32px; }

.results-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.result-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 17px 24px;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s, background 0.15s;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  opacity: 0;
  transform: translateY(6px);
  animation: fadeUp 0.3s ease forwards;
}

.result-card:hover {
  border-color: var(--platform-color);
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
  background: #fff;
}

.result-card.copied { border-color: var(--green); background: var(--green-bg); }

.result-name {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--text);
  word-break: break-all;
  flex: 1;
}

.result-right {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  margin-left: auto;
}

.result-meta { font-size: 0.7rem; color: var(--text-3); font-family: var(--font-mono); }

.copy-hint {
  font-size: 0.72rem;
  color: var(--text-3);
  font-family: var(--font-body);
  white-space: nowrap;
  transition: color 0.12s;
  text-align: right;
}

.result-card:hover .copy-hint { color: var(--platform-color); }
.result-card.copied .copy-hint { color: var(--green); font-weight: 500; }

/* ── REGEN ROW ── */
.regen-row {
  display: flex;
  flex-direction: row;
  gap: 12px;
  justify-content: center;
}

.regen-btn, .copy-all-btn {
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  padding: 10px 24px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.regen-btn { background: transparent; color: var(--text); }
.regen-btn:hover { background: var(--platform-color-light); border-color: var(--platform-color); color: var(--platform-color); }
.copy-all-btn { background: var(--platform-color); color: #fff; border-color: var(--platform-color); }
.copy-all-btn:hover { filter: brightness(1.12); }

/* ── ADVANCED OPTIONS ── */
.advanced-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
  padding: 0;
  transition: color 0.15s;
  user-select: none;
  width: fit-content;
}

.advanced-toggle:hover { color: var(--text); }

.toggle-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
  font-size: 0.6rem;
}

.advanced-toggle.open .toggle-arrow { transform: rotate(90deg); }

.advanced-panel {
  display: none;
  border-top: 1px solid var(--border);
  padding-top: 18px;
  margin-top: 2px;
}

.advanced-panel.open { display: block; }

.adv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 28px;
}

.adv-group {
  display: flex;
  flex-direction: column;
}

.adv-group--full { grid-column: 1 / -1; }

.adv-row { display: flex; gap: 6px; flex-wrap: wrap; }
.adv-checks { gap: 10px; flex-direction: column; }

.fpill {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 5px 12px;
  font-size: 0.75rem;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text-2);
  cursor: pointer;
  transition: all 0.12s;
}

.fpill:hover { border-color: var(--border-strong); color: var(--text); }

.fpill.active {
  background: var(--platform-color-light);
  border-color: var(--platform-color);
  color: var(--platform-color);
  font-weight: 600;
}

.slider-row { display: flex; align-items: center; gap: 14px; }

.slider-row input[type="range"] {
  flex: 1;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--border-strong);
  border-radius: 4px;
  outline: none;
  cursor: pointer;
}

.slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--platform-color);
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(15,31,61,0.2);
}

.slider-val {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-2);
  min-width: 70px;
  text-align: right;
}

.toggle-check {
  display: flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  font-size: 0.83rem;
  color: var(--text-2);
  font-family: var(--font-body);
}

.toggle-check input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--platform-color);
  cursor: pointer;
}

/* ── CONTENT SECTIONS ── */
.content-section, .faq-section, .tips-section { margin-top: 48px; }

.content-section h2,
.faq-section h2,
.tips-section h2 {
  font-family: var(--font-body);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.content-section p {
  font-size: 0.97rem;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 14px;
  max-width: 680px;
}

.content-section p:last-child { margin-bottom: 0; }
.content-section strong { color: var(--text); font-weight: 600; }
.content-section a { color: var(--platform-color); text-decoration: underline; }

/* ── RULES GRID ── */
.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}

.rule-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}

.rule-card .rule-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--platform-color);
  margin-bottom: 6px;
  display: block;
}

.rule-card .rule-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.rule-card .rule-desc {
  font-size: 0.76rem;
  color: var(--text-2);
  margin-top: 2px;
}

/* ── TIPS ── */
.tips-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 4px;
}

.tip-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  display: flex;
  flex-direction: row;
  gap: 14px;
  align-items: flex-start;
}

.tip-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--platform-color);
  background: var(--platform-color-light);
  border-radius: 50%;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.tip-item p { font-size: 0.88rem; color: var(--text-2); line-height: 1.55; margin: 0; }
.tip-item strong { color: var(--text); font-weight: 600; }
.tip-item a { color: var(--platform-color); text-decoration: underline; }

/* ── FAQ ── */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.15s;
}

.faq-item:hover { border-color: var(--border-strong); }
.faq-item[open] { border-color: var(--platform-color); }

.faq-item summary {
  padding: 15px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  user-select: none;
}

.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.1rem; font-weight: 400; color: var(--text-3); flex-shrink: 0; }
.faq-item[open] summary::after { content: '×'; color: var(--platform-color); }

.faq-item p {
  padding: 14px 20px 16px;
  font-size: 0.87rem;
  color: var(--text-2);
  line-height: 1.7;
  margin: 0;
  border-top: 1px solid var(--border);
}

.faq-item a { color: var(--platform-color); text-decoration: underline; }

/* ── CROSS-LINKS ── */
.crosslinks { margin-top: 48px; }

.crosslinks h2 {
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  color: var(--text);
}

.crosslinks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}

.crosslink-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  text-decoration: none;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  transition: border-color 0.15s, transform 0.15s;
}

.crosslink-card:hover { border-color: var(--btn-bg); transform: translateY(-1px); }
.crosslink-card span:first-child { font-size: 0.88rem; font-weight: 600; color: var(--text); }
.crosslink-card span:last-child { font-size: 0.75rem; color: var(--text-3); }

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 40px 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.76rem;
  color: var(--text-3);
  font-family: var(--font-mono);
  text-align: center;
  background: var(--footer-bg);
}

footer span:first-child { font-weight: 500; color: var(--text-2); }
footer a { color: var(--text-2); text-decoration: none; }
footer a:hover { color: var(--text); }
.footer-disclaimer { font-size: 0.7rem; opacity: 0.8; }

/* ── ANIMATIONS ── */
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.35;transform:scale(0.75)} }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  header { padding: 12px 18px; }
  .platform-hero { padding: 28px 0 20px; }
  .platform-hero h1 { font-size: 1.8rem; }
  nav { gap: 14px; }
  nav a { font-size: 0.78rem; }
  .card-body { padding: 18px; }
  .adv-grid { grid-template-columns: 1fr; }
  footer { padding: 14px 18px 100px; flex-direction: column; gap: 6px; }
  .result-card { flex-direction: column; align-items: flex-start; gap: 8px; padding: 14px 16px; }
  .result-name { font-size: 1.2rem; word-break: break-word; white-space: normal; width: 100%; }
  .result-right { width: 100%; justify-content: space-between; }

  /* Stack input vertically on mobile */
  .input-wrap {
    flex-direction: column;
    align-items: stretch;
    border-radius: var(--radius-sm);
  }

  input[type="text"] {
    width: 100%;
    border-bottom: 1px solid var(--border);
    padding: 14px 16px;
  }

  .generate-btn {
    width: 100%;
    justify-content: center;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    min-height: 48px;
  }
  .result-card:hover { transform: none; }
  .crosslinks-grid { grid-template-columns: 1fr 1fr; }
}

/* ══════════════════════════════════════════
   DARK MODE
   ══════════════════════════════════════════ */
html[data-theme="dark"] {
  --bg:              #1a1f2e;
  --surface:         #212840;
  --card-bg:         #252b3b;
  --card-footer-bg:  #1e2333;
  --footer-bg:       #141824;
  --border:          #2e3650;
  --border-strong:   #3a4466;
  --text:            #e8ecf4;
  --text-2:          #9ba8c4;
  --text-3:          #5a6585;
  --accent-light:    #1e2d50;
  --green:           #3db87a;
  --green-bg:        #142a1e;
  --shadow:          0 1px 3px rgba(0,0,0,0.3), 0 4px 20px rgba(0,0,0,0.25);
  --shadow-lg:       0 8px 32px rgba(0,0,0,0.4);
}

html[data-theme="dark"] header { background: rgba(26,31,46,0.80); border-bottom-color: var(--border); }
html[data-theme="dark"] input[type="text"] { background: #2c3450; color: var(--text); }
html[data-theme="dark"] input[type="text"]::placeholder { color: #6a7a9e; }
html[data-theme="dark"] .input-wrap { background: #2c3450; border-color: #4a5578; }
html[data-theme="dark"] .input-wrap:focus-within { border-color: var(--btn-bg); box-shadow: 0 0 0 3px rgba(74,124,247,0.18); }
html[data-theme="dark"] .result-card:hover { background: #2c3450; }
html[data-theme="dark"] .slider-row input[type="range"] { background: var(--border-strong); }

/* ── Dark mode: fix low-contrast platform-color elements ──
   --platform-color-light becomes a translucent light bg so text is readable.
   Elements using platform-color as text colour get a boosted lighter tint.     */
html[data-theme="dark"] {
  --platform-color-light: rgba(255,255,255,0.08);
}

/* platform-badge: text needs to be light enough on dark bg */
html[data-theme="dark"] .platform-badge {
  color: var(--text-2);
  border-color: var(--border-strong);
  background: var(--surface);
}

/* rule-label, tip-num: use text-2 so they're readable */
html[data-theme="dark"] .rule-card .rule-label {
  color: var(--text-2);
}

html[data-theme="dark"] .tip-num {
  color: var(--text);
  background: rgba(255,255,255,0.10);
}

/* fpill active state: dark bg needs light text */
html[data-theme="dark"] .fpill.active {
  background: rgba(255,255,255,0.10);
  border-color: var(--border-strong);
  color: var(--text);
}

html[data-theme="dark"] .fpill {
  color: var(--text-2);
  border-color: var(--border);
}

html[data-theme="dark"] .fpill:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: rgba(255,255,255,0.06);
}

/* rule-card values */
html[data-theme="dark"] .rule-card .rule-value { color: var(--text); }
html[data-theme="dark"] .rule-card .rule-desc  { color: var(--text-2); }
html[data-theme="dark"] .rule-card             { background: var(--surface); border-color: var(--border); }

/* tip items */
html[data-theme="dark"] .tip-item { background: var(--surface); border-color: var(--border); }

/* faq */
html[data-theme="dark"] .faq-item summary { color: var(--text); }

/* Advanced toggle label */
html[data-theme="dark"] .advanced-toggle { color: var(--text-2); }
html[data-theme="dark"] .advanced-toggle:hover { color: var(--text); }

.theme-toggle {
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  cursor: pointer;
  width: 36px;
  height: 22px;
  padding: 0;
  position: relative;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: border-color 0.2s;
}
.theme-toggle:hover { border-color: var(--btn-bg); }
.theme-toggle-track { width:100%;height:100%;border-radius:100px;background:var(--surface);position:relative;transition:background 0.2s; }
html[data-theme="dark"] .theme-toggle-track { background: var(--btn-bg); }
.theme-toggle-knob { position:absolute;top:3px;left:3px;width:14px;height:14px;border-radius:50%;background:var(--text-3);transition:transform 0.2s ease,background 0.2s;display:flex;align-items:center;justify-content:center; }
html[data-theme="dark"] .theme-toggle-knob { transform:translateX(14px);background:#fff; }
.theme-toggle-knob::before { content:'☀';color:#888;font-size:8px; }
html[data-theme="dark"] .theme-toggle-knob::before { content:'☾';color:var(--btn-bg); }