/* ============================================================
   Cliviq — shared styles
   ============================================================ */

:root {
  /* Cal.com white / near-black / gray palette */
  --bg: #ffffff;
  --bg-elev: #ffffff;
  --bg-sunken: #f5f5f5;
  --bg-dark: #101010;
  --bg-dark-elev: #1a1a1a;

  --fg: #111111;
  --fg-secondary: #374151;
  --fg-tertiary: #6b7280;
  --fg-on-dark: #ffffff;
  --fg-on-dark-secondary: #a1a1aa;

  --border: #e5e7eb;
  --border-strong: #d1d5db;
  --border-dark: #232323;

  --accent: #111111;
  --accent-hover: #242424;
  --accent-soft: #f5f5f5;
  --accent-ink: #ffffff;

  --indigo: #6366f1;
  --teal: #22d3ee;

  --green: #5db872;
  --green-soft: #e3f3e6;
  --amber: #d4a017;
  --amber-soft: #f9eccd;
  --red: #c64545;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;

  --shadow-card: 0 1px 0 rgba(20,20,19,0.02), 0 1px 2px rgba(20,20,19,0.04);
  --shadow-elev: 0 1px 0 rgba(20,20,19,0.02), 0 6px 24px -12px rgba(20,20,19,0.10);

  /* Apple-style system font stack with tight tracking */
  --font-sans: "Space Grotesk", -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", system-ui, "Segoe UI", "Inter", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;

  --container: 1200px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.47;
  letter-spacing: -0.022em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

img, svg { display: block; max-width: 100%; }

/* ============================================================
   Layout
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

section {
  padding: 96px 0;
  border-top: 1px solid var(--border);
}

section:first-of-type { border-top: none; }

.section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin: 0 0 16px;
}

.section-headline {
  font-size: 40px;
  line-height: 1.1;
  letter-spacing: -0.025em;
  font-weight: 600;
  margin: 0 0 12px;
  max-width: 720px;
  text-wrap: balance;
}

.section-sub {
  font-size: 18px;
  color: var(--fg-secondary);
  max-width: 640px;
  margin: 0 0 56px;
  text-wrap: pretty;
}

/* ============================================================
   Nav
   ============================================================ */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--fg);
}
.logo .viq { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 14.5px;
  color: var(--fg-secondary);
  transition: color 120ms ease;
}
.nav-links a:hover { color: var(--fg); }
.nav-links a.active { color: var(--fg); }

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease, transform 120ms ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover { background: var(--accent-hover); }
.nav-links a.btn-primary { color: var(--accent-ink); }
.nav-links a.btn-outline { color: var(--fg); }

.btn-outline {
  border-color: var(--border-strong);
  color: var(--fg);
  background: var(--bg-elev);
}
.btn-outline:hover { border-color: var(--fg); }

.btn-ghost { color: var(--fg-secondary); }
.btn-ghost:hover { color: var(--fg); }

.btn-lg {
  padding: 14px 24px;
  font-size: 15.5px;
  border-radius: 8px;
}

/* ============================================================
   Pills / badges
   ============================================================ */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 10px;
  border-radius: 999px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--fg-secondary);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  position: relative;
  flex-shrink: 0;
}
.dot.pulse::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--green);
  opacity: 0.5;
  animation: pulse 1.6s ease-out infinite;
}
@keyframes pulse {
  0%   { transform: scale(0.6); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--green-soft);
  color: var(--green);
  font-weight: 500;
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  padding: 80px 0 72px;
  border-top: none;
}

.hero h1 {
  font-size: clamp(44px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.035em;
  font-weight: 600;
  margin: 24px 0 20px;
  text-wrap: balance;
}
.hero h1 .accent { color: var(--accent); }

.hero p.lede {
  font-size: 19px;
  color: var(--fg-secondary);
  max-width: 600px;
  margin: 0 0 36px;
  text-wrap: pretty;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

/* ============================================================
   Product mockup (chat + dashboard)
   ============================================================ */

.mockup {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-elev);
}

.mockup-titlebar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-sunken);
}
.traffic {
  display: flex;
  gap: 6px;
}
.traffic span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #d6d3ca;
}
.url-bar {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-tertiary);
  text-align: center;
  padding: 4px 12px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  max-width: 480px;
  margin: 0 auto;
}
.url-bar .accent-mono { color: var(--accent); }

.mockup-body {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  min-height: 540px;
}

.chat-panel {
  border-right: 1px solid var(--border);
  padding: 28px 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: var(--bg-elev);
  overflow: hidden;
}

.chat-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fg-tertiary);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.chat-meta .tool-tag {
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-sunken);
  color: var(--fg-secondary);
}

.msg {
  display: flex;
  gap: 12px;
  max-width: 100%;
}
.msg-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 500;
  font-family: var(--font-mono);
}
.msg-user .msg-avatar { background: var(--bg-sunken); color: var(--fg-secondary); border: 1px solid var(--border); }
.msg-ai   .msg-avatar { background: var(--accent); color: white; }

.msg-body {
  flex: 1;
  min-width: 0;
}
.msg-name {
  font-size: 12px;
  color: var(--fg-tertiary);
  margin-bottom: 4px;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.msg-text {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--fg);
}
.msg-text code {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 1px 5px;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: 4px;
}
.msg-tool {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--fg-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.msg-tool .check { color: var(--green); }

.chat-input {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--fg-tertiary);
  font-size: 14px;
}
.chat-input .send {
  margin-left: auto;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: var(--bg-sunken);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-tertiary);
  font-family: var(--font-mono);
  font-size: 14px;
}

/* dashboard side */
.artifact-panel {
  background: var(--bg);
  display: flex;
  flex-direction: column;
}
.artifact-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-elev);
}
.artifact-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14.5px;
  font-weight: 500;
}
.artifact-tools {
  display: flex;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-tertiary);
}
.artifact-tools span {
  padding: 3px 7px;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.chart-wrap {
  flex: 1;
  padding: 18px 22px 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--bg-elev);
}

.chart-legend {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--fg-secondary);
  margin-bottom: 10px;
  font-family: var(--font-mono);
}
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.legend-swatch {
  width: 10px; height: 10px; border-radius: 2px;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
}
.stat {
  padding: 18px 22px;
  border-right: 1px solid var(--border);
}
.stat:last-child { border-right: none; }
.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.stat-value {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.stat-value.amber { color: var(--amber); }
.stat-value.green { color: var(--green); }

/* ============================================================
   How it works
   ============================================================ */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.step-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-card);
}
.step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-tertiary);
  display: flex;
  align-items: center;
  gap: 10px;
}
.step-num::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--border-strong);
}
.step-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.022em;
}
.step-card p {
  margin: 0;
  font-size: 14.5px;
  color: var(--fg-secondary);
  line-height: 1.55;
}
.step-snippet {
  margin-top: auto;
  padding: 14px 16px;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--fg);
  line-height: 1.7;
}
.step-snippet .key { color: var(--fg-tertiary); }
.step-snippet .str { color: var(--accent); }
.step-snippet.quote {
  font-family: var(--font-sans);
  font-style: italic;
  color: var(--fg);
  font-size: 14px;
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--accent-soft);
  border-top: none;
  border-right: none;
  border-bottom: none;
  padding-left: 14px;
}
.step-snippet.list {
  font-size: 13px;
  color: var(--fg-secondary);
}
.step-snippet.list div { padding: 2px 0; }
.step-snippet.list .arrow { color: var(--accent); margin-right: 6px; }

/* ============================================================
   Features grid
   ============================================================ */

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.feature {
  background: var(--bg-elev);
  padding: 32px 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.feature-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.022em;
}
.feature p {
  margin: 0;
  font-size: 14.5px;
  color: var(--fg-secondary);
  line-height: 1.55;
}

/* ============================================================
   Use cases
   ============================================================ */

.usecases-section {
  background: var(--bg-sunken);
}
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.usecase {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.usecase-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--bg-sunken);
  color: var(--fg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  border: 1px solid var(--border);
}
.usecase h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.022em;
}
.usecase p {
  margin: 0;
  font-size: 14.5px;
  color: var(--fg-secondary);
}

/* ============================================================
   CTA + Footer
   ============================================================ */

.cta-section {
  text-align: center;
  padding: 112px 0;
}
.cta-section .section-label,
.cta-section .section-headline,
.cta-section .section-sub {
  margin-left: auto;
  margin-right: auto;
}
.cta-section .section-headline { max-width: none; font-size: 44px; }
.cta-section .section-sub { margin-bottom: 36px; }

.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  font-size: 13.5px;
  color: var(--fg-tertiary);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer a { color: var(--fg-secondary); }
.footer a:hover { color: var(--fg); }
.footer-links { display: flex; gap: 22px; }

/* ============================================================
   Demo page
   ============================================================ */

.demo-header {
  padding: 56px 0 40px;
}
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-tertiary);
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}
.breadcrumb a:hover { color: var(--fg); }
.breadcrumb .sep { margin: 0 8px; color: var(--border-strong); }

.demo-header h1 {
  font-size: 48px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.07;
  margin: 0 0 12px;
}
.demo-header p {
  font-size: 18px;
  color: var(--fg-secondary);
  max-width: 640px;
  margin: 0;
}

.live-banner {
  margin: 32px 0 64px;
  padding: 14px 20px;
  background: var(--green-soft);
  border: 1px solid #c7e6cf;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 12px;
  color: #14552a;
  font-size: 14.5px;
}
.live-banner code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: rgba(22, 163, 74, 0.08);
  padding: 1px 6px;
  border-radius: 4px;
}

/* Steps */
.steps {
  position: relative;
  padding-left: 48px;
}
.steps::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: var(--border);
}
.step {
  position: relative;
  padding-bottom: 64px;
}
.step:last-child { padding-bottom: 0; }
.step-marker {
  position: absolute;
  left: -48px;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg);
}
.step-title {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin: 0 0 8px;
}
.step-desc {
  font-size: 15.5px;
  color: var(--fg-secondary);
  margin: 0 0 22px;
  max-width: 640px;
}

/* API key card */
.keycard {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  max-width: 720px;
}
.keycard-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fg-tertiary);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.keycard-row {
  display: flex;
  align-items: stretch;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-sunken);
}
.keycard-input {
  flex: 1;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--fg);
  white-space: nowrap;
  overflow-x: auto;
}
.copy-btn {
  padding: 0 18px;
  background: var(--bg-elev);
  border-left: 1px solid var(--border);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background 120ms ease, color 120ms ease;
}
.copy-btn:hover { background: var(--bg-sunken); }
.copy-btn.copied { color: var(--green); }

.keycard-note {
  font-size: 13px;
  color: var(--fg-tertiary);
  margin: 14px 0 0;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  width: fit-content;
  margin-bottom: 18px;
}
.tab {
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--fg-secondary);
  transition: background 120ms ease, color 120ms ease;
}
.tab:hover { color: var(--fg); }
.tab.active {
  background: var(--bg-elev);
  color: var(--fg);
  box-shadow: 0 1px 2px rgba(15,17,21,0.06);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Code blocks */
.codeblock {
  background: var(--bg-dark);
  color: var(--fg-on-dark);
  border-radius: var(--radius);
  border: 1px solid var(--border-dark);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.65;
  position: relative;
}
.codeblock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 10px 18px;
  border-bottom: 1px solid var(--border-dark);
  background: var(--bg-dark-elev);
  font-size: 12px;
  color: var(--fg-on-dark-secondary);
  letter-spacing: 0.04em;
}
.codeblock-header .copy-btn {
  background: transparent;
  border: 1px solid var(--border-dark);
  color: var(--fg-on-dark-secondary);
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 12px;
}
.codeblock-header .copy-btn:hover { color: var(--fg-on-dark); border-color: #3a414c; }
.codeblock-header .copy-btn.copied { color: #6ee7a3; border-color: #6ee7a3; }

.codeblock pre {
  margin: 0;
  padding: 18px 22px;
  overflow-x: auto;
}
.codeblock .num { color: var(--fg-on-dark-secondary); user-select: none; padding-right: 14px; }
.codeblock .k  { color: #c4b5fd; }   /* keys */
.codeblock .s  { color: #7dd3fc; }   /* strings */
.codeblock .c  { color: #6b7280; }   /* comments */
.codeblock .p  { color: #9ca3af; }   /* punctuation */
.codeblock .v  { color: #fde68a; }   /* values */
.codeblock .cmd { color: #6ee7a3; }
.codeblock .flag { color: #fbbf24; }

.config-note {
  font-size: 13px;
  color: var(--fg-tertiary);
  margin: 12px 0 0;
}
.config-note code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--fg);
}

/* Example queries */
.queries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.query-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px 18px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 120ms ease, transform 120ms ease, box-shadow 120ms ease;
  width: 100%;
  font: inherit;
  color: inherit;
}
.query-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-elev);
}
.query-card.copied { border-color: var(--green); }
.query-card .q {
  font-size: 14.5px;
  color: var(--fg);
  font-style: italic;
  font-family: var(--font-sans);
}
.query-card .q::before { content: "\201C"; color: var(--accent); margin-right: 2px; }
.query-card .q::after  { content: "\201D"; color: var(--accent); margin-left: 2px; }
.query-card .r {
  font-size: 12.5px;
  font-family: var(--font-mono);
  color: var(--fg-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.query-card .r .arrow { color: var(--accent); }
.query-card .copy-status {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--green);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 200ms ease;
  margin-left: auto;
}
.query-card.copied .copy-status { opacity: 1; }

/* Dataset table */
.dataset-card {
  background: var(--bg-dark);
  color: var(--fg-on-dark);
  border-radius: var(--radius);
  border: 1px solid var(--border-dark);
  overflow: hidden;
}
.dataset-card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.dataset-card-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
}
.dataset-card-header .meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-on-dark-secondary);
}
.dataset-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.dataset-table th, .dataset-table td {
  padding: 14px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border-dark);
  font-weight: 400;
}
.dataset-table th {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-on-dark-secondary);
  font-weight: 500;
}
.dataset-table tbody tr:last-child td { border-bottom: none; }
.dataset-table td.mono { font-family: var(--font-mono); font-size: 13px; }
.dataset-table tbody tr:hover { background: rgba(255,255,255,0.02); }

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
  max-width: 820px;
}
.faq {
  border-bottom: 1px solid var(--border);
}
.faq summary {
  padding: 22px 0;
  font-size: 16.5px;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--fg);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--fg-tertiary);
  font-size: 18px;
  transition: transform 200ms ease;
}
.faq[open] summary::after { content: "−"; }
.faq p {
  margin: 0 0 22px;
  color: var(--fg-secondary);
  font-size: 15px;
  max-width: 720px;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 880px) {
  section { padding: 64px 0; }
  .hero { padding: 56px 0 40px; }
  .nav-links a:not(.btn) { display: none; }
  .mockup-body { grid-template-columns: 1fr; }
  .chat-panel { border-right: none; border-bottom: 1px solid var(--border); }
  .steps-grid, .features-grid, .usecases-grid, .queries-grid {
    grid-template-columns: 1fr;
  }
  .features-grid { gap: 1px; }
  .stat-row { grid-template-columns: 1fr; }
  .stat { border-right: none; border-bottom: 1px solid var(--border); }
  .stat:last-child { border-bottom: none; }
  .demo-header h1 { font-size: 32px; }
  .hero h1 { font-size: 40px; }
  .section-headline { font-size: 28px; }
  .cta-section .section-headline { font-size: 32px; }
  .steps { padding-left: 36px; }
  .step-marker { left: -36px; width: 26px; height: 26px; }
}