/* ============================================================
   AgentBrowser – Main Site Styles (Dark Theme Developer Tool)
   Version: 2.0
   ============================================================ */

/* ----- Google Fonts ----- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ----- Design Tokens ----- */
:root {
  /* Dark theme (default) */
  --bg: #0a0a0b;
  --surface: #16181d;
  --surface-elevated: #1c1e24;
  --border: #2a2d35;
  --text: #e8eaed;
  --text-muted: #9ca3af;
  --accent: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #3b82f6, #06b6d4);
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --dark-bg: #001529;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', 'Courier New', monospace;

  /* Legacy aliases (for smooth transition) */
  --primary: var(--accent);
  --primary-light: #60a5fa;
  --primary-bg: rgba(59, 130, 246, .1);
  --ink: var(--text);
  --muted: var(--text-muted);
  --line: var(--border);
  --soft: var(--surface);
  --panel: var(--surface-elevated);
  --dark: var(--dark-bg);
  --cta: var(--accent);
  --cta-gradient: var(--accent-gradient);
  --green: var(--success);
  --gold: var(--warning);
}

[data-theme="light"] {
  --bg: #ffffff;
  --surface: #f5f7fa;
  --surface-elevated: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-muted: #64748b;
  --accent: #165dff;
  --accent-cyan: #0891b2;
  --accent-gradient: linear-gradient(135deg, #165dff, #0891b2);
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #d97706;
  --dark-bg: #001529;

  /* Legacy aliases */
  --primary: var(--accent);
  --primary-light: #4080ff;
  --primary-bg: rgba(22, 93, 255, .08);
  --ink: var(--text);
  --muted: var(--text-muted);
  --line: var(--border);
  --soft: var(--surface);
  --panel: var(--surface-elevated);
  --dark: var(--dark-bg);
  --cta: var(--accent);
  --cta-gradient: var(--accent-gradient);
  --green: var(--success);
  --gold: var(--warning);
}

/* ----- Reset & Base ----- */
*,
*::before,
*::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  background-image: radial-gradient(rgba(59, 130, 246, .04) 1.5px, transparent 1.5px);
  background-size: 36px 36px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }

.site { min-height: 100vh; display: flex; flex-direction: column; }

/* ----- Navigation ----- */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(10, 10, 11, .88);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
}
[data-theme="light"] .nav {
  background: rgba(255, 255, 255, .88);
}

.nav-inner {
  max-width: 1280px;
  margin: auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  height: 64px;
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--text);
}
.brand span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--accent-gradient);
  color: #fff;
  border-radius: 7px;
  font-size: 15px;
}
.brand.large span { width: 46px; height: 46px; }

/* Nav links */
.links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
}
.links a,
.user-menu a,
.user-menu button {
  padding: 8px 14px;
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 14px;
  border: 0;
  background: transparent;
  font: inherit;
  cursor: pointer;
  position: relative;
  transition: color .2s, background .2s;
}
.links a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .26s ease;
}
.links a:hover { color: var(--accent); background: var(--primary-bg); }
.links a:hover::after { transform: scaleX(1); }
.links a.active {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 12px rgba(59, 130, 246, .3);
}
.links a.active::after { display: none; }

.user-menu { display: flex; align-items: center; gap: 8px; }
.user-menu form { margin: 0; }
.user-menu a:hover,
.user-menu button:hover { color: var(--accent); background: var(--primary-bg); }

.language-picker {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  background: transparent;
}
.brand img{width:34px;height:34px;object-fit:contain;flex:0 0 auto}.brand.large img{width:46px;height:46px}

/* 2026 public product narrative */
.hero-note{margin-top:14px;color:var(--muted);font-size:.92rem}
.real-demo{margin:0;padding:12px;border:1px solid var(--line);border-radius:24px;background:var(--surface);box-shadow:var(--shadow)}
.real-demo img{display:block;width:100%;border-radius:15px;background:#0b1020;aspect-ratio:16/10;object-fit:cover}
.real-demo figcaption{padding:10px 4px 2px;color:var(--muted);font-size:.84rem;text-align:center}
.trust-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;margin:24px 0 72px;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--line)}
.trust-strip span{padding:18px 12px;background:var(--surface);font-weight:700;text-align:center}
.trust-strip span:before{content:'✓';margin-right:8px;color:var(--accent)}
.capability-grid,.plan-compare-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.capability{padding:28px;border:1px solid var(--line);border-radius:22px;background:var(--surface)}
.capability h3{font-size:1.4rem;margin:0 0 12px}.capability p{color:var(--muted);line-height:1.75}
.task-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.task-flow .step{display:block;padding:22px}.task-flow .step b{display:block;margin-bottom:16px}
.scenario-grid.compact{grid-template-columns:repeat(3,1fr)}
.scenario-outcome{display:block;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);color:var(--accent)}
.plan-compare-cards{grid-template-columns:repeat(2,minmax(0,1fr));max-width:960px}.plan-compare-cards ul{padding-left:20px;line-height:2}
.release-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 28px;margin:22px 0}.release-facts div{min-width:0}.release-facts dt{font-size:.8rem;color:var(--muted)}.release-facts dd{margin:4px 0 0;font-weight:700;overflow-wrap:anywhere}.release-facts code{font-size:.72rem}
.other-downloads{margin:24px 0 64px;border:1px solid var(--line);border-radius:18px;padding:0 24px 24px;background:var(--surface)}.other-downloads summary{cursor:pointer;padding:22px 0;font-weight:800}
.legal-warning{padding:20px 22px;margin-bottom:28px;border:1px solid #f59e0b;border-radius:16px;background:color-mix(in srgb,#f59e0b 10%,transparent)}.legal-warning strong{color:#f59e0b}.legal-warning p{margin:8px 0 0}
.footer-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}.footer-columns div{display:grid;gap:9px}.footer-columns b{margin-bottom:5px}.footer-columns a{color:var(--muted)}
@media(max-width:900px){.trust-strip{grid-template-columns:1fr 1fr}.capability-grid,.scenario-grid.compact,.task-flow{grid-template-columns:1fr}.plan-compare-cards{grid-template-columns:1fr}.release-facts{grid-template-columns:1fr}.footer-columns{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.trust-strip,.footer-columns{grid-template-columns:1fr}.trust-strip span{text-align:left}}
.language-picker select {
  max-width: 92px;
  border: 0;
  outline: 0;
  color: inherit;
  background: var(--surface-elevated);
  font: inherit;
  cursor: pointer;
}

/* Theme toggle button */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  transition: color .2s, background .2s, border-color .2s;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); background: var(--primary-bg); }

/* ----- Main Content ----- */
.main {
  flex: 1;
  max-width: 1280px;
  width: 100%;
  margin: 28px auto;
  padding: 40px 32px 72px;
  background: var(--surface-elevated);
  border-radius: 12px;
  border: 1px solid var(--border);
  position: relative;
}

/* ----- Hero ----- */
.hero {
  min-height: 540px;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(420px, .98fr);
  align-items: center;
  gap: 40px;
}

.eyebrow {
  display: inline-flex;
  color: var(--accent-cyan);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

h1, h2, h3, p { margin: 0; }

h1 {
  font-size: 56px;
  line-height: 1.06;
  letter-spacing: -.02em;
  max-width: 13ch;
}
h2 { font-size: 28px; line-height: 1.2; }
h3 { font-size: 17px; }

.lead,
.page-title p,
.section-head p {
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 16px;
  max-width: 650px;
  margin-top: 16px;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-weight: 700;
  background: var(--surface-elevated);
  color: var(--text);
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
  font-size: 15px;
  font-family: var(--font);
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, .2);
}
.btn.primary {
  background: var(--accent-gradient);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 6px 18px rgba(59, 130, 246, .3);
}
.btn.primary:hover {
  box-shadow: 0 12px 30px rgba(59, 130, 246, .45);
  filter: brightness(1.06);
}
.btn.dark {
  background: var(--dark-bg);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 6px 18px rgba(0, 21, 41, .25);
}
.btn.dark:hover { box-shadow: 0 12px 28px rgba(0, 21, 41, .4); }
.btn.text { border-color: transparent; background: transparent; color: var(--text-muted); }
.btn.text:hover { color: var(--accent); }
.btn.full { width: 100%; }

/* ----- Hero Visual / Terminal ----- */
.hero-visual {
  min-height: 420px;
  background: linear-gradient(135deg, var(--dark-bg), #0a2647 45%, #0c1929);
  padding: 26px;
  border-radius: 12px;
  box-shadow: 0 28px 70px rgba(0, 21, 41, .35);
  position: relative;
  overflow: hidden;
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at 30% 40%, rgba(59, 130, 246, .12), transparent 50%);
  pointer-events: none;
}

.terminal {
  height: 100%;
  background: #0d1117;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .1);
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
}
.terminal-header {
  height: 38px;
  background: #161b22;
  display: flex;
  align-items: center;
  gap: 7px;
  padding-left: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-dot:nth-child(1) { background: var(--danger); }
.terminal-dot:nth-child(2) { background: var(--warning); }
.terminal-dot:nth-child(3) { background: var(--success); }
.terminal-body {
  padding: 20px;
  color: #e6edf3;
  font-size: 13px;
  line-height: 1.7;
}
.terminal-prompt { color: var(--success); }
.terminal-curl {
  color: #79c0ff;
}
.terminal-curl span {
  color: var(--accent-cyan);
}
.terminal-result {
  color: var(--text-muted);
  margin-top: 14px;
}
.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--accent-cyan);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  50% { opacity: 0; }
}

/* Live dot in terminal */
.live-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
  margin-right: 8px;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .5; }
}

/* ----- Metrics Strip ----- */
.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface-elevated);
}
.metric {
  padding: 24px 20px;
  background: var(--surface-elevated);
  border-right: 1px solid var(--border);
}
.metric:last-child { border-right: 0; }
.metric b {
  display: block;
  font-size: 30px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.metric span { color: var(--text-muted); font-size: 14px; }

/* ----- Sections ----- */
.section { padding-top: 60px; }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 26px;
  margin-bottom: 20px;
}
.section-head h2 { max-width: 570px; }

/* ----- Grids ----- */
.feature-grid,
.pricing-grid,
.scenario-grid,
.help-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.feature-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ----- Cards ----- */
.card, .plan, .scenario, .help, .panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  transition: transform .22s ease, box-shadow .22s ease;
}

/* Card left accent border instead of top bar */
.card {
  border-left: 3px solid var(--accent);
}
.card::before { display: none; } /* Remove old top bar */
.card.red { border-left-color: var(--accent); }
.card.green { border-left-color: var(--success); }
.card.gold { border-left-color: var(--warning); }
.card.blue { border-left-color: var(--accent-cyan); }

.card p, .scenario p, .help p, .plan p, .muted {
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 10px;
}

.card h3, .scenario h2, .help h2 { color: var(--text); }

/* Card hover */
.card:hover,
.scenario:hover,
.help:hover,
.plan:hover,
.pain:hover,
.flow-step:hover,
.stat-card:hover,
.skill-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, .25), 0 0 0 1px var(--accent-cyan);
}
[data-theme="light"] .card:hover,
[data-theme="light"] .scenario:hover,
[data-theme="light"] .help:hover,
[data-theme="light"] .plan:hover,
[data-theme="light"] .pain:hover,
[data-theme="light"] .flow-step:hover,
[data-theme="light"] .stat-card:hover,
[data-theme="light"] .skill-card:hover {
  box-shadow: 0 12px 40px rgba(0, 0, 0, .08), 0 0 0 1px var(--border);
}

/* ----- CTA Band ----- */
.cta-band {
  margin-top: 60px;
  background: linear-gradient(135deg, var(--dark-bg), #0a2647);
  color: #fff;
  border-radius: 12px;
  padding: 36px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.cta-band .eyebrow { color: var(--accent-cyan); }

/* ----- Page Title ----- */
.page-title {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}
.page-title.compact { padding-top: 24px; }
.page-title h1 { max-width: 900px; font-size: 40px; }

/* ----- Two Column ----- */
.two-col {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 34px;
}
.sticky-copy {
  display: block;
  position: sticky;
  top: 80px;
  align-self: start;
}

/* ----- Steps (Timeline) ----- */
.timeline { display: grid; gap: 14px; }
.step {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  background: var(--surface);
  transition: transform .22s ease, box-shadow .22s ease;
}
.step b {
  color: var(--accent-cyan);
  font-size: 24px;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 2px solid var(--accent-cyan);
  border-radius: 50%;
}

/* ----- Help Grid ----- */
.help-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* ----- Pricing ----- */
.pricing-grid { align-items: stretch; }
.plan-facts {
  list-style: none;
  padding: 0;
  margin: 18px 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.plan-facts li {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface-elevated);
}
.plan-facts b { display: block; font-size: 22px; color: var(--text); }
.plan-facts span { display: block; margin-top: 2px; color: var(--text-muted); font-size: 12px; line-height: 1.4; }
.plan.featured {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 1px var(--accent-cyan), 0 18px 46px rgba(6, 182, 212, .12);
  background: var(--surface-elevated);
}
.price {
  font-size: 36px;
  font-weight: 900;
  margin: 16px 0;
  color: var(--text);
}
.tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.tag {
  font-size: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--text-muted);
}

/* ----- Download List ----- */
.list-panel {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: grid;
  gap: 16px;
  background: transparent;
}

.download-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: transform .22s ease, box-shadow .22s ease;
}
.download-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
}
.download-card .dl-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}
.download-card .dl-name { font-weight: 800; font-size: 17px; }
.download-card .dl-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
}
.download-card .dl-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  background: var(--primary-bg);
  color: var(--accent);
}
.download-card .dl-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
  margin-top: 4px;
}

/* Old download row kept for releases section */
.download-row, .data-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.download-row:last-child, .data-row:last-child { border-bottom: 0; }

/* Download card sub and footer */
.download-card .dl-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin: -4px 0 0;
}
.download-card .dl-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
}

/* Download list grid */
.download-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

/* Release card styles */
.dl-release-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 8px;
}
.dl-release-header h3 { margin: 0; }
.dl-release-date {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.dl-release-notes {
  white-space: pre-line;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.6;
}
.dl-release-files {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.dl-file-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  gap: 16px;
}
.dl-file-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.dl-file-hash {
  font-size: 12px;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', Consolas, monospace;
}
.dl-badge.stable {
  background: rgba(34, 197, 94, .12);
  color: var(--success);
}
.dl-badge.prerelease {
  background: rgba(251, 191, 36, .12);
  color: #f59e0b;
}

/* ----- Dashboard ----- */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.panel.wide { grid-column: 1 / -1; }

.kv {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  margin: 16px 0 0;
}
.kv dt { color: var(--text-muted); }
.kv dd { margin: 0; font-weight: 700; }

/* ----- Forms ----- */
label {
  display: block;
  font-weight: 700;
  color: var(--text);
  margin: 14px 0;
}
input, select, textarea {
  width: 100%;
  margin-top: 8px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  background: var(--surface);
  color: var(--text);
  transition: border-color .2s, box-shadow .2s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, .15);
}

/* ----- Code / Pre ----- */
pre {
  background: #0d1117;
  color: #c9d1d9;
  padding: 20px;
  border-radius: 8px;
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  border: 1px solid var(--border);
}

/* ----- Alerts ----- */
.alert {
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid rgba(239, 68, 68, .2);
  background: rgba(239, 68, 68, .08);
  color: #fca5a5;
  margin: 14px 0;
}
.alert.ok {
  border-color: rgba(34, 197, 94, .2);
  background: rgba(34, 197, 94, .08);
  color: #86efac;
}

/* ----- Pain Points ----- */
.pain-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.pain {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 24px;
  transition: transform .22s ease, box-shadow .22s ease;
}
.pain::before { display: none; } /* Remove old top bar */
.pain h3 { font-size: 18px; }
.pain p { color: var(--text-muted); line-height: 1.7; margin-top: 10px; }

/* ----- Comparison Table ----- */
.compare-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  min-width: 560px;
}
.compare-table th, .compare-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  text-align: center;
  font-size: 15px;
}
.compare-table th {
  background: var(--surface);
  font-weight: 800;
  color: var(--text-muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .03em;
}
.compare-table td:first-child, .compare-table th:first-child {
  text-align: left;
  font-weight: 700;
}
.compare-table tbody tr:last-child td { border-bottom: 0; }
.compare-table tr.highlight {
  background: rgba(59, 130, 246, .06);
}
.compare-table tr.highlight td {
  font-weight: 800;
  color: var(--accent-cyan);
}

/* ----- FAQ ----- */
.faq-list { display: grid; gap: 14px; }

.faq {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-cyan);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color .2s;
}

.faq-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 22px 22px 26px;
  cursor: pointer;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  width: 100%;
  text-align: left;
}
.faq-header:hover { color: var(--accent-cyan); }

.faq-header q {
  display: block;
  font-size: 18px;
  font-weight: 800;
  font-style: normal;
}
.faq-header q::before { content: "Q "; color: var(--accent-cyan); }

.faq-arrow {
  flex-shrink: 0;
  margin-left: 12px;
  color: var(--text-muted);
  font-size: 18px;
  transition: transform .25s ease;
}
.faq.open .faq-arrow { transform: rotate(180deg); }

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
}
.faq.open .faq-body {
  max-height: 400px;
}

.faq-body-inner {
  padding: 0 22px 22px 26px;
  color: var(--text-muted);
  line-height: 1.7;
}
.faq-body-inner::before { content: "A "; color: var(--accent-cyan); font-weight: 800; }

/* ----- Code Note ----- */
.code-note { margin-top: 14px; font-size: 15px; }

/* ----- Flow Grid ----- */
.flow-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 12px;
  align-items: stretch;
}
.flow-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  transition: transform .22s ease, box-shadow .22s ease;
}
.flow-step b {
  display: block;
  color: var(--accent-cyan);
  font-size: 24px;
  margin-bottom: 10px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 2px solid var(--accent-cyan);
  border-radius: 50%;
}
.flow-arrow {
  display: grid;
  place-items: center;
  color: var(--text-muted);
  font-size: 22px;
  font-weight: 800;
}

/* ----- Stats Grid (Admin) ----- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  transition: transform .22s ease, box-shadow .22s ease;
}
.stat-card b {
  display: block;
  font-size: 28px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-card span { color: var(--text-muted); font-size: 14px; }

/* ----- Order Table ----- */
.order-table {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 8px;
}
.order-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr .8fr .6fr;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  background: var(--surface);
}
.order-row.head {
  background: var(--surface);
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 800;
  text-transform: uppercase;
}
.order-row:last-child { border-bottom: 0; }
.status {
  font-size: 12px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  display: inline-block;
  width: fit-content;
}
.status.paid { background: rgba(34, 197, 94, .12); color: var(--success); }
.status.pending { background: rgba(245, 158, 11, .12); color: var(--warning); }
.status.disabled, .status.suspended, .status.payment_exception {
  background: rgba(239, 68, 68, .12);
  color: var(--danger, #ef4444);
}

.trial-banner { display:flex; gap:14px; align-items:center; justify-content:center; margin:0 0 24px; padding:14px 18px; border:1px solid var(--border); border-radius:14px; background:var(--secondary-bg); }
.trial-banner b { color:var(--accent); }
.currency-prices { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin:18px 0; }
.currency-prices .price { margin:0; padding:12px; border:1px solid var(--border); border-radius:12px; }
.currency-prices .price.usd { color:#0070ba; }
.purchase-links { display:flex; flex-wrap:wrap; gap:10px; }
.btn.paypal { background:#0070ba; border-color:#0070ba; color:#fff; }
.btn.paypal:hover { background:#005ea6; border-color:#005ea6; }
.payment-note { margin:12px 0 0; color:var(--text-muted); font-size:12px; }
@media (max-width:640px) { .trial-banner { align-items:flex-start; flex-direction:column; } .currency-prices { grid-template-columns:1fr; } }

.agent-demo { padding: 26px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); box-shadow: 0 24px 70px rgba(0,0,0,.28); }
.demo-prompt { display:flex; gap:12px; padding:14px; margin-bottom:18px; border-radius:10px; background:var(--primary-bg); }
.demo-prompt span { width:30px; height:30px; display:grid; place-items:center; border-radius:50%; background:var(--accent-gradient); color:#fff; font-weight:800; }
.demo-prompt p { flex:1; line-height:1.6; }
.demo-step { display:flex; gap:13px; padding:13px 4px; border-top:1px solid var(--border); opacity:.64; }
.demo-step b { width:28px; height:28px; display:grid; place-items:center; border-radius:50%; border:1px solid var(--border); }
.demo-step div { display:flex; flex-direction:column; gap:4px; }
.demo-step small { color:var(--text-muted); line-height:1.4; }
.demo-step.done { opacity:1; }
.demo-step.done b { background:rgba(34,197,94,.14); border-color:var(--success); color:var(--success); }
.demo-step.handoff { opacity:1; }
.demo-step.handoff b { background:rgba(245,158,11,.14); border-color:var(--warning); color:var(--warning); }
.quick-start-strip { display:grid; grid-template-columns:repeat(3,1fr); gap:1px; margin:8px 0 68px; overflow:hidden; border:1px solid var(--border); border-radius:12px; background:var(--border); }
.quick-start-strip a { display:flex; gap:14px; padding:20px; background:var(--surface); transition:background .2s; }
.quick-start-strip a:hover { background:var(--primary-bg); }
.quick-start-strip b { color:var(--accent-cyan); }
.quick-start-strip span { display:flex; flex-direction:column; gap:5px; }
.quick-start-strip small { color:var(--text-muted); }
.guide-link { display:block; transition:transform .2s,border-color .2s; }
.guide-link:hover { transform:translateY(-3px); border-color:var(--accent); }
.guide-link > span { display:block; margin-bottom:12px; color:var(--accent-cyan); font-weight:800; }
.guide-steps { max-width:900px; }
.feedback-form { max-width:760px; display:grid; gap:16px; }
.feedback-form label { display:grid; gap:8px; color:var(--text-muted); }
.feedback-form input,.feedback-form select,.feedback-form textarea { width:100%; padding:12px; color:var(--text); background:var(--surface); border:1px solid var(--border); border-radius:7px; font:inherit; }
.feedback-form textarea { resize:vertical; }
.form-two { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.hp-field { position:absolute!important; left:-10000px!important; width:1px!important; height:1px!important; }
.ticket-description,.ticket-message p { white-space:pre-wrap; line-height:1.7; }
.ticket-thread { display:grid; gap:12px; margin:18px 0; }
.ticket-message { padding:15px; border:1px solid var(--border); border-radius:9px; background:var(--surface); }
.ticket-message.admin { border-color:rgba(59,130,246,.45); background:var(--primary-bg); }
.ticket-message > div { display:flex; justify-content:space-between; gap:12px; margin-bottom:8px; }
.ticket-message time { color:var(--text-muted); font-size:12px; }
.recommended-download { display:flex; align-items:center; justify-content:space-between; gap:24px; margin-bottom:28px; padding:24px; border:1px solid var(--accent); border-radius:12px; background:var(--primary-bg); }
.recommended-download p { color:var(--text-muted); margin:8px 0; }
.recommended-download code { font-size:12px; overflow-wrap:anywhere; }

@media (max-width: 820px) {
  .quick-start-strip { grid-template-columns:1fr; }
}

/* ----- Admin Console ----- */
.admin-section-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: -12px 0 24px;
  position: sticky;
  top: 72px;
  z-index: 20;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(12px);
}
.admin-section-nav a {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 700;
}
.admin-section-nav a:hover {
  color: var(--text);
  background: var(--surface-elevated);
}
.admin-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}
.admin-panel-head h2,
.admin-panel-head p {
  margin: 0;
}
.admin-panel-head input {
  width: min(340px, 100%);
}
.admin-search {
  display: flex;
  align-items: center;
  gap: 8px;
  width: min(440px, 100%);
}
.admin-search input {
  flex: 1;
  min-width: 180px;
}
.admin-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
}
.admin-table {
  width: 100%;
  min-width: 980px;
  border-collapse: collapse;
  font-size: 13px;
}
.admin-table th,
.admin-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}
.admin-table th {
  color: var(--text-muted);
  background: var(--surface);
  font-size: 12px;
  text-transform: uppercase;
  white-space: nowrap;
}
.admin-table tbody tr:last-child td {
  border-bottom: 0;
}
.admin-table tbody tr:hover {
  background: var(--surface);
}
.admin-table td small {
  display: block;
  margin-top: 4px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 230px;
}
.admin-order-query-result {
  flex-basis: 100%;
  line-height: 1.5;
  white-space: normal;
}
.admin-order-query-result.pending { color: var(--text-muted); }
.admin-order-query-result.ok { color: #15803d; }
.admin-order-query-result.error { color: #b91c1c; }
.btn.small {
  padding: 6px 9px;
  font-size: 12px;
}
.btn.danger {
  border-color: #b91c1c;
  background: #b91c1c;
  color: #fff;
}
.btn.danger:hover { background: #991b1b; }
.admin-result {
  min-height: 110px;
  margin: 0;
  padding: 16px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font: 12px/1.7 var(--font-mono);
}
.admin-toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 10001;
  max-width: min(440px, calc(100vw - 48px));
  padding: 14px 18px;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  color: #fff;
}
.admin-toast.ok { background: #15803d; }
.admin-toast.error { background: #b91c1c; }

/* ----- Skill Grid ----- */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  transition: transform .22s ease, box-shadow .22s ease;
  display: flex;
  flex-direction: column;
}
.skill-card .model { font-weight: 800; font-size: 18px; }
.skill-card .fmt {
  font-size: 12px;
  color: var(--accent-cyan);
  font-weight: 700;
  letter-spacing: .03em;
  margin-top: 6px;
}
.skill-card p:not(.fmt) {
  color: var(--text-muted);
  line-height: 1.7;
  margin: 12px 0 18px;
  flex: 1;
}
.skill-card .btn { margin-top: auto; align-self: flex-start; }

/* ----- Scenario Card ----- */
.scenario {
  position: relative;
  overflow: hidden;
  border-left: 3px solid var(--accent);
}
.scenario-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-cyan);
  font-weight: 700;
  letter-spacing: .05em;
  margin-bottom: 8px;
}
.scenario h2 { font-size: 20px; }

/* Help card */
.help {
  border-left: 3px solid var(--accent-cyan);
}

/* ----- Scroll Reveal ----- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .5s ease, transform .5s ease;
}
.reveal.in { opacity: 1; transform: none; }

/* ----- Back to Top ----- */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #fff;
  border: 0;
  display: grid;
  place-items: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s, visibility .25s, transform .18s;
  z-index: 50;
  font-size: 18px;
  box-shadow: 0 4px 14px rgba(59, 130, 246, .3);
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(59, 130, 246, .45); }

/* ----- Footer ----- */
.site-foot {
  border-top: 1px solid var(--border);
  background: var(--surface);
  margin-top: auto;
}
.site-foot .brand { color: var(--text); }
.foot-inner {
  max-width: 1280px;
  margin: auto;
  padding: 32px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}
.foot-links { display: flex; gap: 14px; flex-wrap: wrap; }
.foot-links a {
  color: var(--text-muted);
  font-size: 14px;
  transition: color .2s;
}
.foot-links a:hover { color: var(--accent); }
.foot-meta { color: var(--text-muted); font-size: 13px; }

/* ----- Scenario Type Badge ----- */
.scenario-type {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: .04em;
  text-transform: uppercase;
  background: var(--primary-bg);
  color: var(--accent);
  margin-bottom: 10px;
}

/* ----- Badges (Release) ----- */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  background: var(--primary-bg);
  color: var(--accent);
}
.badge.channel-beta { background: rgba(245, 158, 11, .12); color: var(--warning); }
.badge.channel-stable { background: rgba(34, 197, 94, .12); color: var(--success); }

/* ----- Search Box (Help) ----- */
.search-box {
  width: 100%;
  max-width: 480px;
  margin-bottom: 24px;
}
.search-box input {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 15px;
}
.search-box input::placeholder { color: var(--text-muted); }

/* ===== RESPONSIVE ===== */

@media (max-width: 1200px) {
  .skill-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 980px) {
  .nav-inner {
    height: auto;
    padding: 12px 18px;
    flex-direction: column;
    align-items: stretch;
  }
  .links { justify-content: center; gap: 0; }
  .hero, .two-col, .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .hero { min-height: 0; }
  .hero-visual { min-height: 340px; }
  .feature-grid, .feature-grid.four, .pricing-grid,
  .scenario-grid, .help-grid, .metric-strip, .pain-grid {
    grid-template-columns: 1fr 1fr;
  }
  h1 { font-size: 40px; }
  .download-row, .data-row { grid-template-columns: 1fr; }
  .flow-grid { grid-template-columns: 1fr; }
  .flow-arrow { transform: rotate(90deg); padding: 4px 0; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .list-panel { gap: 12px; }
}

@media (max-width: 640px) {
  .main { padding: 20px 14px 40px; margin: 0; border-radius: 0; }
  .feature-grid, .feature-grid.four, .pricing-grid,
  .scenario-grid, .help-grid, .metric-strip, .pain-grid {
    grid-template-columns: 1fr;
  }
  .metric { border-right: 0; border-bottom: 1px solid var(--border); }
  h1 { font-size: 30px; }
  h2 { font-size: 22px; }
  .section-head, .cta-band { display: block; }
  .cta-band { padding: 24px 20px; text-align: center; }
  .actions { display: grid; }
  .hero-visual { padding: 12px; }
  .compare-table { min-width: 0; font-size: 13px; }
  .compare-table th, .compare-table td { padding: 10px 8px; }
  .stat-grid { grid-template-columns: 1fr; }
  .order-row { grid-template-columns: 1fr; }
  .skill-grid { grid-template-columns: 1fr; }
  .download-card .dl-header { flex-direction: column; }
}

/* ============================================================
   Sandbox Test Page
   ============================================================ */
.sandbox-page {
  display: flex;
  gap: 0;
  min-height: calc(100vh - 120px);
}
.sb-sidebar {
  width: 220px;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  padding: 20px 0;
  position: sticky;
  top: 0;
  height: calc(100vh - 120px);
  overflow-y: auto;
  background: var(--bg);
  z-index: 10;
}
.sb-sidebar-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0 16px 12px;
}
.sb-nav {
  display: flex;
  flex-direction: column;
}
.sb-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--text);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
  border-left: 2px solid transparent;
}
.sb-link:hover {
  background: var(--surface);
  color: var(--accent);
}
.sb-link.active {
  background: var(--surface);
  color: var(--accent);
  border-left-color: var(--accent);
}
.sb-num {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  background: var(--surface);
  border-radius: 4px;
  flex-shrink: 0;
  color: var(--text-muted);
}
.sb-link.active .sb-num {
  background: var(--accent);
  color: #fff;
}
.sb-content {
  flex: 1;
  padding: 32px;
  max-width: 960px;
}
.sb-page-title {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 8px;
  cursor: pointer;
  user-select: none;
}
.sb-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0 0 32px;
  line-height: 1.6;
}
.sb-desc code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--surface);
  padding: 1px 6px;
  border-radius: 3px;
}
.sb-section {
  margin-bottom: 40px;
  scroll-margin-top: 20px;
}
.sb-section-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 4px;
}
.sb-section-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0 0 16px;
}
.sb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}
.sb-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sb-card label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}
.sb-input {
  padding: 8px 10px;
  font-size: 13px;
  font-family: var(--font);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
}
.sb-input:focus {
  border-color: var(--accent);
}
.sb-btn {
  padding: 6px 14px;
  font-size: 13px;
  font-family: var(--font);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.sb-btn:hover {
  background: var(--border);
}
.sb-btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.sb-btn-primary:hover {
  opacity: 0.9;
  background: var(--accent);
}
.sb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.sb-table th,
.sb-table td {
  padding: 6px 10px;
  border: 1px solid var(--border);
  text-align: left;
}
.sb-table th {
  background: var(--surface-elevated);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}
.sb-scroll-box::-webkit-scrollbar {
  width: 6px;
}
.sb-scroll-box::-webkit-scrollbar-track {
  background: var(--surface);
  border-radius: 3px;
}
.sb-scroll-box::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
.sb-modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}
.sb-modal-overlay.open {
  display: flex;
}
.sb-tab {
  padding: 6px 14px;
  font-size: 12px;
  font-family: var(--font);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px 6px 0 0;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.sb-tab.active {
  background: var(--surface-elevated);
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.sb-tab-panel {
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 6px 6px;
}
.sb-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.sb-footer p {
  font-size: 13px;
  color: var(--text-muted);
}
@keyframes sb-easter-bounce {
  0% { transform: scale(0.3); opacity: 0; }
  50% { transform: scale(1.1); }
  70% { transform: scale(0.9); }
  100% { transform: scale(1); opacity: 1; }
}
@media (max-width: 768px) {
  .sandbox-page { flex-direction: column; }
  .sb-sidebar {
    width: 100%;
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
  }
  .sb-nav { flex-direction: row; flex-wrap: wrap; gap: 4px; padding: 0 12px; }
  .sb-link { padding: 4px 10px; font-size: 12px; border-left: none; }
  .sb-link.active { border-left: none; border-bottom: 2px solid var(--accent); }
  .sb-num { display: none; }
  .sb-content { padding: 20px; }
  .sb-grid { grid-template-columns: 1fr; }
  .sb-sidebar-title { display: none; }
}