/* ──────────────────────────────────────────────────────────────────
   tuvl portal — 2026 modern AI tool aesthetic
   Deep charcoal canvas · cyan/electric accent (matches feather logo)
   ──────────────────────────────────────────────────────────────── */

:root {
  /* surfaces */
  --bg-0: #08090b;
  --bg-1: #0c0d10;
  --bg-2: #111317;
  --bg-3: #16191f;
  --bg-card: rgba(255, 255, 255, 0.025);
  --bg-card-hover: rgba(255, 255, 255, 0.04);
  --bg-elev: rgba(255, 255, 255, 0.035);

  /* borders */
  --border-0: rgba(255, 255, 255, 0.06);
  --border-1: rgba(255, 255, 255, 0.09);
  --border-2: rgba(255, 255, 255, 0.13);
  --border-bright: rgba(34, 211, 238, 0.3);

  /* text */
  --text-0: #f5f6f7;
  --text-1: #d1d4d9;
  --text-2: #9ba0a8;
  --text-3: #6b7079;
  --text-4: #44484f;

  /* accents — pulled from the feather logo */
  --cyan: #22d3ee;
  --cyan-bright: #67e8f9;
  --cyan-deep: #06b6d4;
  --cyan-glow: rgba(34, 211, 238, 0.35);

  --warm: #fbbf24;
  --green: #4ade80;
  --pink: #f472b6;
  --violet: #a78bfa;

  /* code */
  --code-bg: #0a0c10;
  --syn-kw: #67e8f9;
  --syn-st: #fde68a;
  --syn-vl: #c4b5fd;
  --syn-cm: #5b6470;
  --syn-fn: #93c5fd;

  /* type */
  --f-sans: "Inter", system-ui, -apple-system, sans-serif;
  --f-mono: "JetBrains Mono", "SF Mono", Menlo, monospace;
  --f-mal: "Noto Sans Malayalam", "Inter", sans-serif;

  /* layout */
  --container: 1200px;
  --container-wide: 1320px;
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* easing */
  --ease: cubic-bezier(0.32, 0.72, 0.32, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-0);
  color: var(--text-1);
  font-family: var(--f-sans);
  font-size: 16px;
  line-height: 1.55;
  font-feature-settings: "ss01", "cv11", "cv02";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body { overflow-x: hidden; min-height: 100vh; }

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

::selection { background: rgba(34, 211, 238, 0.32); color: #fff; }

/* ── Ambient background ───────────────────────────────────────── */
.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 600px at 12% -10%, rgba(34, 211, 238, 0.18), transparent 60%),
    radial-gradient(800px 500px at 95% 10%, rgba(167, 139, 250, 0.12), transparent 60%),
    radial-gradient(700px 600px at 50% 80%, rgba(6, 182, 212, 0.08), transparent 65%),
    var(--bg-0);
  pointer-events: none;
}
.bg-noise {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.4;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.5 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* ── Announcement bar ─────────────────────────────────────────── */
.announce-bar {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 9px 48px 9px 16px;
  background: linear-gradient(90deg, rgba(6,182,212,0.12) 0%, rgba(99,102,241,0.12) 100%);
  border-bottom: 1px solid rgba(6,182,212,0.18);
  font-size: 13px;
  color: var(--text-1);
  text-align: center;
  animation: bar-fade-in 0.5s ease;
}
@keyframes bar-fade-in {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.announce-pulse {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #22d3ee;
  box-shadow: 0 0 0 3px rgba(34,211,238,0.25), 0 0 10px #22d3ee;
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}
.announce-text strong { color: var(--text-0); }
.announce-link {
  color: #22d3ee;
  font-weight: 600;
  margin-left: 8px;
  text-decoration: none;
  white-space: nowrap;
}
.announce-link:hover { text-decoration: underline; }
.announce-close {
  position: absolute;
  right: 14px;
  background: none;
  border: none;
  color: var(--text-3);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
  transition: color 0.15s;
}
.announce-close:hover { color: var(--text-0); }
#announceCountdown { color: #f59e0b; font-weight: 700; font-variant-numeric: tabular-nums; }

/* ── Nav ──────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  background: rgba(8, 9, 11, 0.65);
  border-bottom: 1px solid var(--border-0);
}
.nav-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-0);
  flex-shrink: 0;
}
.nav-logo { width: 26px; height: 26px; filter: drop-shadow(0 0 12px rgba(34, 211, 238, 0.55)); }
.nav-wordmark { font-weight: 700; font-size: 17px; letter-spacing: -0.02em; }
.nav-mal {
  font-family: var(--f-mal);
  font-size: 15px;
  color: var(--text-3);
  letter-spacing: 0.01em;
  padding-left: 9px;
  margin-left: 3px;
  border-left: 1px solid var(--border-1);
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 24px;
  flex: 1;
}
.nav-link {
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 7px;
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}
.nav-link:hover { color: var(--text-0); background: rgba(255, 255, 255, 0.04); }

.docs-version-badge {
  display: inline-block;
  margin-left: 5px;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: lowercase;
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent, #06b6d4);
  vertical-align: middle;
  pointer-events: none;
}

.nav-right { display: flex; align-items: center; gap: 8px; }
.nav-icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  color: var(--text-2);
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}
.nav-icon-link:hover { color: var(--text-0); background: rgba(255, 255, 255, 0.05); }

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  transition: all 0.18s var(--ease);
  white-space: nowrap;
  text-decoration: none;
}
.btn-sm { padding: 9px 16px; font-size: 13.5px; border-radius: 8px; }
.btn-xs { padding: 6px 12px; font-size: 13px; border-radius: 7px; }

.btn-primary {
  background: linear-gradient(180deg, #f6f7f9 0%, #d8dadf 100%);
  color: #08090b;
  font-weight: 600;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset, 0 6px 18px rgba(0, 0, 0, 0.35);
}
.btn-primary:hover {
  background: linear-gradient(180deg, #ffffff 0%, #ebedf0 100%);
  transform: translateY(-1px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.85) inset, 0 10px 24px rgba(0, 0, 0, 0.4);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-0);
  border-color: var(--border-1);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--border-2);
  transform: translateY(-1px);
}

/* ── Hero ─────────────────────────────────────────────────────── */
.hero {
  padding: 80px 28px 60px;
  position: relative;
}
.hero-inner {
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px 6px 12px;
  border: 1px solid var(--border-1);
  background: rgba(255, 255, 255, 0.025);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-1);
  margin-bottom: 32px;
  transition: all 0.18s var(--ease);
}
.pill:hover { border-color: var(--border-bright); background: rgba(34, 211, 238, 0.05); color: var(--text-0); }
.pill-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.18), 0 0 14px var(--cyan);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
  font-size: clamp(44px, 8.4vw, 96px);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.04em;
  color: var(--text-0);
  margin: 0 0 26px;
  font-feature-settings: "ss01", "cv11";
}
.hero-title .grad {
  display: inline-block;
  background: linear-gradient(120deg, var(--cyan-bright) 0%, var(--cyan) 35%, var(--cyan-deep) 60%, #a78bfa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: clamp(17px, 1.7vw, 20px);
  color: var(--text-2);
  max-width: 640px;
  margin: 0 auto 38px;
  line-height: 1.55;
  letter-spacing: -0.005em;
}

.hero-name {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin: 0 auto 36px;
  padding: 12px 20px 12px 14px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-1);
  border-radius: 100px;
}
.hero-name-mark { width: 28px; height: 28px; filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.6)); }
.hero-name-text { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.1; }
.hero-name-word { font-weight: 700; font-size: 17px; color: var(--text-0); letter-spacing: -0.01em; }
.hero-name-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--text-3);
  margin-top: 2px;
}
.hero-name-mal { font-family: var(--f-mal); color: var(--cyan-bright); font-weight: 500; }
.hero-name-ipa { font-family: var(--f-mono); font-size: 11.5px; }
.hero-name-sep { color: var(--text-4); }

.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

/* ── Terminal ─────────────────────────────────────────────────── */
/* ── Code demo (tabbed file viewer) ──────────────────────────── */
.demo-label {
  text-align: center;
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 0 0 14px;
}
.demo-label span { color: var(--cyan); }
.code-demo {
  max-width: 780px;
  margin: 0 auto;
  background: #07080a;
  border: 1px solid var(--border-1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.04) inset,
    0 30px 80px -20px rgba(0,0,0,0.7),
    0 0 0 1px rgba(34,211,238,0.08),
    0 0 80px -20px rgba(34,211,238,0.2);
  text-align: left;
}
.code-demo-tabs {
  display: flex;
  background: rgba(255,255,255,0.015);
  border-bottom: 1px solid var(--border-1);
  overflow-x: auto;
  scrollbar-width: none;
}
.code-demo-tabs::-webkit-scrollbar { display: none; }
.code-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  font-family: var(--f-mono);
  font-size: 11.5px;
  color: var(--text-4);
  background: none;
  border: none;
  border-right: 1px solid var(--border-0);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s, background 0.15s;
}
.code-tab:hover { color: var(--text-1); background: rgba(255,255,255,0.02); }
.code-tab.active {
  color: var(--text-0);
  background: rgba(34,211,238,0.06);
  border-bottom: 2px solid var(--cyan);
}
.code-tab-run { margin-left: auto; color: var(--cyan); }
.code-tab-run.active { color: var(--cyan); }
.code-tab-icon { font-size: 12px; opacity: 0.7; }
.code-tab-num {
  font-size: 10px;
  font-weight: 700;
  color: var(--cyan);
  opacity: 0.6;
  letter-spacing: 0.05em;
  margin-right: 2px;
}
.t-prompt-sm {
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--cyan);
  font-style: normal;
}
.code-panel { display: none; }
.code-panel.active { display: block; }
.code-pre {
  margin: 0;
  padding: 22px 24px;
  font-family: var(--f-mono);
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--text-1);
  overflow-x: auto;
  background: none;
}
/* YAML syntax colours */
.y-k  { color: #7dd3fc; }           /* key */
.y-p  { color: var(--text-3); }     /* colon punctuation */
.y-v  { color: #f8f8f2; }           /* bare value */
.y-str{ color: #a3e635; }           /* quoted/string value */
.y-env{ color: #f59e0b; }           /* ${ENV_VAR} */
.y-def{ color: #fbbf24; opacity:.7;}/* :default inside env */
.y-num{ color: #c084fc; }           /* numbers */
.y-kw { color: #f472b6; }           /* true/false/null */
.y-li { color: var(--text-3); }     /* list dash */
.y-cm { color: var(--text-4); font-style: italic; } /* comment */
.code-demo-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 18px;
  border-top: 1px solid var(--border-0);
  background: rgba(255,255,255,0.01);
  font-family: var(--f-mono);
  font-size: 11px;
}
.code-demo-version { color: rgba(34,211,238,0.6); }

.terminal {
  max-width: 780px;
  margin: 0 auto;
  background: linear-gradient(180deg, #0a0c10 0%, #07080a 100%);
  border: 1px solid var(--border-1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 30px 80px -20px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(34, 211, 238, 0.08),
    0 0 80px -20px rgba(34, 211, 238, 0.2);
  text-align: left;
}
.terminal-sm { box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 20px 50px -15px rgba(0, 0, 0, 0.5); }

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-1);
  background: rgba(255, 255, 255, 0.015);
}
.t-dots { display: flex; gap: 6px; }
.t-dots i {
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--border-2);
}
.t-dots i:nth-child(1) { background: #ff5f57; }
.t-dots i:nth-child(2) { background: #febc2e; }
.t-dots i:nth-child(3) { background: #28c840; }
.t-title { font-family: var(--f-mono); font-size: 12px; color: var(--text-3); margin-left: 6px; }
.t-meta { font-family: var(--f-mono); font-size: 11px; color: var(--text-4); margin-left: auto; }

.terminal-body {
  padding: 18px 22px 22px;
  font-family: var(--f-mono);
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-1);
  text-align: left;
}
.t-line { white-space: pre-wrap; }
.t-out { white-space: pre-wrap; color: var(--text-2); }
.t-gap { height: 12px; }
.t-prompt { color: var(--cyan); margin-right: 8px; user-select: none; }
.t-cmd { color: var(--text-0); }
.t-ok { color: var(--green); margin-right: 6px; }
.t-arrow { color: var(--cyan); margin-right: 6px; }
.t-path { color: var(--syn-st); }
.t-url { color: var(--cyan-bright); }
.t-dim { color: var(--text-4); }
.t-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--cyan);
  vertical-align: text-bottom;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.t-box {
  margin: 6px 0 0;
  padding: 12px 16px;
  border-left: 2px solid var(--cyan);
  background: rgba(34, 211, 238, 0.04);
  border-radius: 0 6px 6px 0;
  color: var(--text-1);
  line-height: 1.75;
}
.t-box-title { color: var(--green); font-weight: 600; }

/* ── Logos strip ──────────────────────────────────────────────── */
.logos {
  padding: 64px 28px 24px;
  border-top: 1px solid var(--border-0);
  border-bottom: 1px solid var(--border-0);
  background: rgba(0, 0, 0, 0.2);
}
.logos-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 26px;
}
.logos-label {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
}
.logos-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 38px 46px;
}
.logos-row a {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: -0.01em;
  opacity: 0.7;
  transition: all 0.18s var(--ease);
}
.logos-row a:hover { color: var(--cyan-bright); opacity: 1; }

/* ── Section heading ──────────────────────────────────────────── */
.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 18px;
  padding: 5px 12px;
  border: 1px solid var(--border-1);
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.02);
}
.eyebrow-cyan {
  color: var(--cyan-bright);
  border-color: rgba(34, 211, 238, 0.3);
  background: rgba(34, 211, 238, 0.07);
}
.section-title {
  font-size: clamp(36px, 5.4vw, 60px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.035em;
  color: var(--text-0);
  margin: 0 0 18px;
}
.section-title-sm { font-size: clamp(30px, 4vw, 42px); }
.section-title .grad {
  background: linear-gradient(120deg, var(--cyan-bright) 0%, var(--cyan-deep) 60%, #a78bfa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.section-sub {
  font-size: 17px;
  color: var(--text-2);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ── Insight showcase ─────────────────────────────────────────── */
.insight {
  padding: 120px 28px 40px;
  max-width: var(--container-wide);
  margin: 0 auto;
}
.insight-app {
  max-width: 1180px;
  margin: 0 auto 64px;
  background: linear-gradient(180deg, #0c0e12 0%, #08090b 100%);
  border: 1px solid var(--border-1);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(34, 211, 238, 0.12),
    0 40px 100px -20px rgba(0, 0, 0, 0.6),
    0 0 120px -20px rgba(34, 211, 238, 0.25);
}
.insight-chrome {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-1);
  background: rgba(255, 255, 255, 0.012);
}
.insight-url {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: 12.5px;
  color: var(--text-3);
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-0);
  border-radius: 7px;
  padding: 6px 14px;
  max-width: 460px;
  margin: 0 auto;
}
.insight-url svg { color: var(--green); }
.insight-url b { color: var(--text-1); font-weight: 500; }
#insight-path { color: var(--cyan-bright); }
.insight-badge {
  font-family: var(--f-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  padding: 3px 9px;
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.3);
  border-radius: 6px;
}

.insight-stage {
  display: grid;
  grid-template-columns: 200px 1fr;
  min-height: 600px;
}
.insight-tabs {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 18px 10px;
  background: rgba(0, 0, 0, 0.3);
  border-right: 1px solid var(--border-0);
}
.i-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  background: transparent;
  border: none;
  border-radius: 7px;
  text-align: left;
  transition: all 0.15s var(--ease);
}
.i-tab svg { flex-shrink: 0; opacity: 0.7; }
.i-tab:hover { color: var(--text-1); background: rgba(255, 255, 255, 0.03); }
.i-tab.active {
  color: var(--cyan-bright);
  background: rgba(34, 211, 238, 0.08);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.2);
}
.i-tab.active svg { opacity: 1; }

.insight-screen {
  position: relative;
  padding: 20px;
  background:
    radial-gradient(circle at 30% 0%, rgba(34, 211, 238, 0.06), transparent 60%),
    #08090b;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
#insight-img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border-1);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
  display: block;
  transition: opacity 0.25s var(--ease);
}
.insight-caption {
  text-align: center;
  font-size: 13.5px;
  color: var(--text-2);
  padding: 8px 16px;
  line-height: 1.55;
}

/* insight grid */
.insight-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1180px;
  margin: 0 auto;
}
.i-cell {
  padding: 26px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-0);
  border-radius: var(--radius);
  transition: all 0.2s var(--ease);
}
.i-cell:hover { background: var(--bg-card-hover); border-color: var(--border-1); transform: translateY(-2px); }
.i-cell-num {
  font-family: var(--f-mono);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--cyan-bright);
  margin-bottom: 10px;
  line-height: 1;
}
.i-cell-num .hl { font-size: 18px; color: var(--text-3); font-weight: 500; }
.i-cell-text {
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.55;
}

/* ── Features bento ───────────────────────────────────────────── */
.features {
  padding: 120px 28px 40px;
  max-width: var(--container-wide);
  margin: 0 auto;
}
.bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1180px;
  margin: 0 auto;
}
.card {
  position: relative;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-0);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.22s var(--ease);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-1);
  transform: translateY(-2px);
}
.card-wide { grid-column: span 2; }
.card-tall { grid-row: span 2; }
.card-feature {
  background:
    radial-gradient(circle at 100% 0%, rgba(34, 211, 238, 0.1), transparent 50%),
    var(--bg-card);
  border-color: rgba(34, 211, 238, 0.18);
}
.card-feature:hover { border-color: rgba(34, 211, 238, 0.32); }
.card-spectrum {
  background:
    radial-gradient(circle at 0% 100%, rgba(251, 191, 36, 0.08), transparent 55%),
    var(--bg-card);
}
.card-glow {
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 50%), rgba(34, 211, 238, 0.06), transparent 40%);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
  pointer-events: none;
}
.card:hover .card-glow { opacity: 1; }
.card-body { flex: 1; }
.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-1);
  border: 1px solid var(--border-1);
}
.card-icon svg { width: 19px; height: 19px; }
.card-icon-cyan { background: rgba(34, 211, 238, 0.1); border-color: rgba(34, 211, 238, 0.25); color: var(--cyan-bright); }
.card-kind {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan-bright);
  margin-bottom: 6px;
  padding: 3px 9px;
  background: rgba(34, 211, 238, 0.08);
  border-radius: 5px;
}
.card-kind-warm { color: var(--warm); background: rgba(251, 191, 36, 0.1); }
.card h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--text-0);
  line-height: 1.3;
}
.card p {
  margin: 0;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.55;
}
.card code {
  font-family: var(--f-mono);
  font-size: 12.5px;
  color: var(--cyan-bright);
  background: rgba(34, 211, 238, 0.07);
  padding: 1.5px 6px;
  border-radius: 4px;
}

/* yaml mini preview inside card */
.card-art {
  margin-top: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border-1);
  background: var(--code-bg);
  padding: 16px 18px;
  overflow: hidden;
}
.card-art pre {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-1);
  white-space: pre;
}

/* mini terminal inside test card */
.card-mini-term {
  margin-top: 14px;
  padding: 14px 16px;
  font-family: var(--f-mono);
  font-size: 12.5px;
  line-height: 1.85;
  background: var(--code-bg);
  border: 1px solid var(--border-1);
  border-radius: var(--radius);
  color: var(--text-1);
}

/* spectrum mini node graph */
.spectrum-nodes {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  flex-wrap: wrap;
}
.sn {
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 7px;
  border: 1px solid var(--border-1);
  background: rgba(255, 255, 255, 0.03);
}
.sn-done { color: var(--green); border-color: rgba(74, 222, 128, 0.3); background: rgba(74, 222, 128, 0.08); }
.sn-running {
  color: var(--cyan-bright);
  border-color: rgba(34, 211, 238, 0.4);
  background: rgba(34, 211, 238, 0.1);
  animation: spectrum-pulse 1.6s ease-in-out infinite;
}
@keyframes spectrum-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.4); }
  50% { box-shadow: 0 0 0 6px rgba(34, 211, 238, 0); }
}
.sn-pending { color: var(--text-3); }
.sn-arr { color: var(--text-4); font-family: var(--f-mono); }

/* ── Workflow switcher ────────────────────────────────────────── */
.workflows {
  padding: 120px 28px 40px;
  max-width: var(--container-wide);
  margin: 0 auto;
}
.wf-switch {
  display: inline-flex;
  padding: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-1);
  border-radius: 100px;
  margin: 0 auto 32px;
  display: flex;
  width: fit-content;
}
.wf-btn {
  padding: 8px 18px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-2);
  background: transparent;
  border: none;
  border-radius: 100px;
  transition: all 0.18s var(--ease);
}
.wf-btn.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-0);
}

.wf-card {
  max-width: 1180px;
  margin: 0 auto;
  background: linear-gradient(180deg, #0c0e12 0%, #08090b 100%);
  border: 1px solid var(--border-1);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.5);
}
.wf-pane { display: none; }
.wf-pane.active { display: block; }
.wf-pane-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 480px;
}
.wf-yaml {
  background: var(--code-bg);
  border-right: 1px solid var(--border-1);
  display: flex;
  flex-direction: column;
}
.wf-yaml-head {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border-1);
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--text-3);
  background: rgba(255, 255, 255, 0.012);
}
.wf-yaml pre {
  margin: 0;
  padding: 22px 24px;
  font-family: var(--f-mono);
  font-size: 13px;
  line-height: 1.75;
  flex: 1;
  overflow: auto;
}

.wf-graph {
  padding: 38px 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  background:
    radial-gradient(circle at 50% 50%, rgba(34, 211, 238, 0.04), transparent 70%);
}
.wf-graph-row {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
}
.wf-graph-branches {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 8px;
  width: 100%;
  max-width: 380px;
}
.wf-branch {
  display: flex;
  align-items: center;
  gap: 10px;
}
.wf-branch-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-1), transparent);
}
.wf-branch-line-short { max-width: 60px; }
.wf-node {
  padding: 9px 14px;
  border-radius: 9px;
  font-family: var(--f-mono);
  font-size: 12.5px;
  font-weight: 500;
  border: 1px solid var(--border-1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-0);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}
.wf-node-sm { padding: 7px 12px; font-size: 12px; }
.n-func { border-color: rgba(74, 222, 128, 0.35); background: rgba(74, 222, 128, 0.08); }
.n-agent { border-color: rgba(34, 211, 238, 0.4); background: rgba(34, 211, 238, 0.1); color: var(--cyan-bright); }
.n-model { border-color: rgba(167, 139, 250, 0.35); background: rgba(167, 139, 250, 0.08); color: var(--violet); }
.n-end { border-color: var(--border-2); background: rgba(0, 0, 0, 0.4); color: var(--text-3); }
.n-tag {
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 2px 6px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 4px;
  color: var(--cyan-bright);
}
.wf-line {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  position: relative;
  min-width: 60px;
}
.wf-line::before {
  content: "";
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--border-2), var(--border-2));
}
.wf-sig {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--text-3);
  padding: 2px 8px;
  background: var(--bg-1);
  border: 1px solid var(--border-1);
  border-radius: 4px;
}
.wf-sig-pos { color: var(--green); border-color: rgba(74, 222, 128, 0.3); }
.wf-sig-neg { color: #f87171; border-color: rgba(248, 113, 113, 0.3); }

/* ── SDK ──────────────────────────────────────────────────────── */
.sdk {
  padding: 120px 28px 40px;
  max-width: var(--container-wide);
  margin: 0 auto;
}
.sdk-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: center;
}
.sdk-info .section-head { text-align: left; max-width: none; margin-bottom: 0; }
.sdk-info .eyebrow { margin-left: 0; }
.sdk-list {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.sdk-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14.5px;
  color: var(--text-1);
  line-height: 1.55;
}
.sdk-list b { color: var(--text-0); font-weight: 600; }
.sdk-list code {
  font-family: var(--f-mono);
  font-size: 12.5px;
  color: var(--cyan-bright);
  background: rgba(34, 211, 238, 0.08);
  padding: 1.5px 6px;
  border-radius: 4px;
}
.sdk-tick {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  border-radius: 50%;
  background: rgba(34, 211, 238, 0.15);
  color: var(--cyan-bright);
  font-size: 12px;
  font-weight: 700;
}
.sdk-cta { display: flex; gap: 10px; flex-wrap: wrap; }

/* ── Get started 3 steps ──────────────────────────────────────── */
.getstarted {
  padding: 120px 28px 40px;
  max-width: var(--container-wide);
  margin: 0 auto;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 1180px;
  margin: 0 auto;
}
.step {
  background: var(--bg-card);
  border: 1px solid var(--border-0);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.2s var(--ease);
}
.step:hover { border-color: var(--border-1); transform: translateY(-2px); }
.step-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-0);
}
.step-num {
  font-family: var(--f-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan-bright);
  padding: 4px 10px;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 6px;
}
.step h4 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-0);
  letter-spacing: -0.01em;
}
.step-code {
  margin: 0;
  padding: 20px 24px;
  font-family: var(--f-mono);
  font-size: 12.5px;
  line-height: 1.75;
  background: var(--code-bg);
  color: var(--text-1);
  white-space: pre;
  overflow: auto;
  min-height: 280px;
}

/* ── Audience ─────────────────────────────────────────────────── */
.audience {
  padding: 120px 28px 40px;
  max-width: var(--container-wide);
  margin: 0 auto;
}
.aud-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 1180px;
  margin: 0 auto;
}
.aud-card {
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-0);
  border-radius: var(--radius-lg);
  transition: all 0.2s var(--ease);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.aud-card:hover { background: var(--bg-card-hover); border-color: var(--border-1); transform: translateY(-3px); }
.aud-icon {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-bright);
}
.aud-icon svg { width: 19px; height: 19px; }
.aud-card h3 { margin: 0; font-size: 19px; font-weight: 600; color: var(--text-0); letter-spacing: -0.015em; }
.aud-card p { margin: 0; font-size: 14px; color: var(--text-2); line-height: 1.6; flex: 1; }
.aud-link {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--cyan-bright);
  margin-top: 4px;
  transition: gap 0.18s var(--ease);
}
.aud-link:hover { color: var(--cyan); text-decoration: underline; }

/* ── CTA ──────────────────────────────────────────────────────── */
.cta {
  padding: 120px 28px 80px;
  max-width: 920px;
  margin: 0 auto;
}
.cta-card {
  position: relative;
  padding: 60px 48px;
  background: linear-gradient(180deg, #0c0e12 0%, #08090b 100%);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-xl);
  text-align: center;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(34, 211, 238, 0.15) inset,
    0 0 100px -20px rgba(34, 211, 238, 0.3);
}
.cta-glow {
  position: absolute;
  inset: -50%;
  background: radial-gradient(circle at 50% 100%, rgba(34, 211, 238, 0.18), transparent 50%);
  pointer-events: none;
}
.cta-card > * { position: relative; z-index: 1; }
.cta-card h2 {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-0);
  margin: 0 0 16px;
}
.cta-card h2 .grad {
  background: linear-gradient(120deg, var(--cyan-bright), #a78bfa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.cta-card p {
  font-size: 16px;
  color: var(--text-2);
  max-width: 460px;
  margin: 0 auto 28px;
}
.cta-form {
  display: flex;
  gap: 10px;
  max-width: 460px;
  margin: 0 auto 14px;
  flex-wrap: wrap;
  justify-content: center;
}
.cta-input {
  flex: 1;
  min-width: 200px;
  padding: 12px 16px;
  font-size: 14.5px;
  background: rgba(0, 0, 0, 0.4);
  color: var(--text-0);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  font-family: var(--f-sans);
  transition: border-color 0.18s var(--ease);
}
.cta-input::placeholder { color: var(--text-4); }
.cta-input:focus { outline: none; border-color: var(--cyan); }
.cta-success {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 14.5px;
  color: var(--cyan-bright);
  padding: 14px;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.25);
  border-radius: 10px;
  max-width: 460px;
  margin: 0 auto 14px;
}
.cta-success[hidden] { display: none; }
.cta-note { font-size: 13px; color: var(--text-3); margin: 0; }

/* ── Footer ───────────────────────────────────────────────────── */
.footer {
  padding: 64px 28px 24px;
  border-top: 1px solid var(--border-0);
  background: rgba(0, 0, 0, 0.3);
}
.footer-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-0);
}
.footer-brand {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.footer-logo { width: 36px; height: 36px; filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.5)); }
.footer-name { font-size: 18px; font-weight: 700; color: var(--text-0); letter-spacing: -0.01em; }
.footer-mal { font-family: var(--f-mal); color: var(--cyan-bright); font-size: 16px; font-weight: 500; margin-left: 6px; }
.footer-tag { font-size: 13.5px; color: var(--text-3); margin-top: 4px; }

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer-col h6 {
  margin: 0 0 12px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-2);
  padding: 5px 0;
  transition: color 0.15s var(--ease);
}
.footer-col a:hover { color: var(--cyan-bright); }
.footer-bottom {
  max-width: var(--container-wide);
  margin: 24px auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-3);
}
.footer-pron { font-family: var(--f-mono); font-size: 12px; }

/* ── Code syntax shared ───────────────────────────────────────── */
.code {
  font-family: var(--f-mono);
  color: var(--text-1);
}
.kw { color: var(--syn-kw); }
.st { color: var(--syn-st); }
.vl { color: var(--syn-vl); font-weight: 500; }
.cm { color: var(--syn-cm); font-style: italic; }
.fn { color: var(--syn-fn); }
.pkw { color: #f472b6; font-weight: 500; }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .insight-stage { grid-template-columns: 1fr; }
  .insight-tabs { flex-direction: row; flex-wrap: wrap; border-right: none; border-bottom: 1px solid var(--border-0); padding: 14px; gap: 4px; }
  .i-tab { font-size: 12px; padding: 7px 11px; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .card-wide { grid-column: span 2; }
  .card-tall { grid-row: auto; }
  .wf-pane-grid { grid-template-columns: 1fr; }
  .wf-yaml { border-right: none; border-bottom: 1px solid var(--border-1); }
  .sdk-grid { grid-template-columns: 1fr; gap: 40px; }
  .steps { grid-template-columns: 1fr; }
  .aud-grid { grid-template-columns: 1fr; }
  .insight-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-center { display: none; }
  .nav-inner { padding: 12px 18px; gap: 12px; }
  .nav-mal { display: none; }
  .hero { padding: 56px 18px 40px; }
  .hero-title { font-size: clamp(38px, 11vw, 64px); }
  .terminal-body { font-size: 12px; padding: 16px; }
  .insight, .features, .workflows, .sdk, .getstarted, .audience, .cta { padding: 80px 18px 24px; }
  .bento { grid-template-columns: 1fr; }
  .card-wide { grid-column: auto; }
  .insight-grid { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .cta-card { padding: 40px 24px; }
  .section-title { font-size: clamp(28px, 8vw, 40px); }
}

/* ── Scroll reveal ────────────────────────────────────────────── */
@media (prefers-reduced-motion: no-preference) {
  .card, .step, .aud-card, .i-cell {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  }
  .reveal {
    opacity: 1 !important;
    transform: translateY(0) !important;
  }
}