/* n1ai, enterprise dark-first design system */

:root {
  /* Surfaces */
  --bg-canvas: #0A0B0D;
  --bg-elevated: #101114;
  --bg-sunken: #07080A;
  --bg-overlay: rgba(10, 11, 13, 0.72);

  /* Text */
  --text-primary: #F2F3F5;
  --text-secondary: #B9BDC4;
  --text-muted: #7A8088;
  --text-faint: #4A4F57;

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-hover: rgba(255, 255, 255, 0.28);

  /* Accent, electric blue */
  --accent: #3D5AFE;
  --accent-hover: #5B75FF;
  --accent-soft: rgba(61, 90, 254, 0.12);
  --accent-ring: rgba(61, 90, 254, 0.35);
  --accent-contrast: #FFFFFF;

  /* Semantic */
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;

  /* Grid */
  --container: 1280px;
  --pad-x: clamp(20px, 4vw, 48px);

  /* Radii */
  --r-xs: 3px;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;

  /* Fonts */
  --font-display: "Inter Tight", "Inter", ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

[data-theme="light"] {
  --bg-canvas: #FAFAF7;
  --bg-elevated: #FFFFFF;
  --bg-sunken: #F0F0EC;
  --bg-overlay: rgba(250, 250, 247, 0.78);
  --text-primary: #0A0B0D;
  --text-secondary: #2F333A;
  --text-muted: #5C626B;
  --text-faint: #A0A5AD;
  --border-subtle: rgba(10, 11, 13, 0.08);
  --border-strong: rgba(10, 11, 13, 0.16);
  --border-hover: rgba(10, 11, 13, 0.28);
  --accent: #2E45E0;
  --accent-hover: #1F34C7;
  --accent-soft: rgba(46, 69, 224, 0.10);
  --accent-ring: rgba(46, 69, 224, 0.30);
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-canvas) !important;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

body {
  background:
    radial-gradient(1200px 600px at 85% -200px, rgba(61, 90, 254, 0.08), transparent 60%),
    var(--bg-canvas) !important;
  min-height: 100vh;
}

[data-theme="light"] body {
  background:
    radial-gradient(1200px 600px at 85% -200px, rgba(46, 69, 224, 0.05), transparent 60%),
    var(--bg-canvas) !important;
}

html { background: var(--bg-canvas) !important; }

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

::selection { background: var(--accent); color: var(--accent-contrast); }

/* Dot grid background util */
.dotgrid {
  background-image: radial-gradient(var(--border-subtle) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: 0 0;
}

/* Layout */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}

.section {
  padding: clamp(64px, 9vw, 128px) 0;
  border-top: 1px solid var(--border-subtle);
}

.section--tight { padding: clamp(48px, 6vw, 80px) 0; }

/* Type */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px; background: var(--accent); border-radius: 50%;
  box-shadow: 0 0 0 4px var(--accent-soft);
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; letter-spacing: -0.022em; margin: 0; line-height: 1.05; color: var(--text-primary); }

.h-display { font-size: clamp(44px, 6.4vw, 88px); letter-spacing: -0.035em; line-height: 0.98; font-weight: 500; }
.h-xl { font-size: clamp(36px, 4.4vw, 60px); letter-spacing: -0.028em; line-height: 1.02; }
.h-lg { font-size: clamp(28px, 2.8vw, 40px); letter-spacing: -0.02em; line-height: 1.1; }
.h-md { font-size: clamp(20px, 1.6vw, 24px); letter-spacing: -0.012em; line-height: 1.2; }

.lede { font-size: clamp(17px, 1.4vw, 20px); line-height: 1.5; color: var(--text-secondary); max-width: 62ch; }

.mono { font-family: var(--font-mono); font-feature-settings: "zero", "ss01"; }

.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

/* Header */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  background: var(--bg-overlay);
  border-bottom: 1px solid var(--border-subtle);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px; max-width: var(--container);
  margin: 0 auto; padding: 0 var(--pad-x);
}
.brand {
  display: inline-flex; align-items: center; gap: 0;
  line-height: 1;
}
.brand__mark {
  width: 28px; height: 28px; border-radius: 4px 0 0 4px;
  background: var(--text-primary);
  color: var(--bg-canvas);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 700; font-size: 13px;
  text-transform: uppercase;
}
.brand__text {
  width: 28px; height: 28px; border-radius: 0 4px 4px 0;
  background: var(--accent);
  color: #ffffff;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 700; font-size: 13px;
  text-transform: uppercase;
}
.nav__links { display: flex; gap: 2px; align-items: center; }
.nav__link {
  font-size: 14px; color: var(--text-secondary);
  padding: 8px 12px; border-radius: var(--r-sm);
  transition: color 120ms ease, background 120ms ease;
}
.nav__link:hover { color: var(--text-primary); background: var(--border-subtle); }
.nav__link[aria-current="page"] { color: var(--text-primary); }
.nav__dropdown { position: relative; }
.nav__dropdown-trigger {
  display: inline-flex; align-items: center; gap: 6px;
  background: transparent; border: 0; cursor: pointer;
  font-family: inherit; font-size: 14px; font-weight: inherit; line-height: inherit;
  color: var(--text-secondary);
  margin: 0;
}
.nav__dropdown-trigger svg { opacity: 0.7; transition: transform 160ms ease; }
.nav__dropdown:hover .nav__dropdown-trigger svg,
.nav__dropdown:focus-within .nav__dropdown-trigger svg { transform: rotate(180deg); }
.nav__dropdown-menu {
  position: absolute; top: calc(100% + 8px); left: 0;
  min-width: 240px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-sm);
  padding: 6px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.35);
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; pointer-events: none;
  transform: translateY(-4px);
  transition: opacity 140ms ease, transform 140ms ease, visibility 140ms;
  z-index: 50;
}
.nav__dropdown:hover .nav__dropdown-menu,
.nav__dropdown:focus-within .nav__dropdown-menu {
  opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0);
}
.nav__dropdown-menu a {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--text-secondary);
  border-radius: var(--r-xs, 4px);
  text-decoration: none;
  transition: color 120ms ease, background 120ms ease;
}
.nav__dropdown-menu a:hover { color: var(--text-primary); background: var(--border-subtle); }
.nav__dropdown-divider {
  height: 1px; background: var(--border-subtle); margin: 6px 4px;
}
.nav__dropdown-all { color: var(--accent) !important; }
.nav__right { display: flex; align-items: center; gap: 10px; }

@media (max-width: 860px) {
  .nav__links { display: none; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: var(--r-sm);
  font-size: 14px; font-weight: 500;
  font-family: var(--font-body);
  border: 1px solid transparent; cursor: pointer;
  transition: background 140ms ease, border-color 140ms ease, color 140ms ease, transform 140ms ease;
  text-decoration: none;
}
.btn:focus-visible { outline: 2px solid var(--accent-ring); outline-offset: 2px; }
.btn--primary { background: var(--accent); color: var(--accent-contrast); }
.btn--primary:hover { background: var(--accent-hover); }
.btn--secondary { background: transparent; color: var(--text-primary); border-color: var(--border-strong); }
.btn--secondary:hover { border-color: var(--border-hover); background: var(--border-subtle); }
.btn--ghost { background: transparent; color: var(--text-secondary); }
.btn--ghost:hover { color: var(--text-primary); }
.btn--lg { padding: 14px 20px; font-size: 15px; }
.btn .arrow {
  display: inline-block; transition: transform 180ms ease;
}
.btn:hover .arrow { transform: translateX(3px); }

/* Compliance badges */
.badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 10px 5px 8px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  background: var(--bg-elevated);
}
.badge::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--success); box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.18);
}

/* Cards */
.card {
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  border-radius: var(--r-md);
  padding: 28px;
  position: relative;
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}
.card:hover { border-color: var(--border-hover); }
.card--link { cursor: pointer; }
.card--link:hover { transform: translateY(-2px); }

.card__kicker {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
  color: var(--text-muted); text-transform: uppercase;
  margin-bottom: 16px;
}
.card__title { font-size: 19px; font-weight: 500; letter-spacing: -0.01em; margin-bottom: 8px; }
.card__body { color: var(--text-secondary); font-size: 14px; line-height: 1.55; }
.card__arrow {
  position: absolute; top: 24px; right: 24px;
  color: var(--text-faint);
  transition: color 180ms ease, transform 180ms ease;
}
.card--link:hover .card__arrow { color: var(--accent); transform: translate(2px, -2px); }

/* Metric */
.metric { display: flex; flex-direction: column; gap: 16px; padding: 24px 0; }
.metric__num {
  font-family: var(--font-display);
  font-size: clamp(44px, 5vw, 72px);
  line-height: 1;
  letter-spacing: -0.04em;
  font-weight: 400;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  margin-bottom: 4px;
}
.metric__label { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.metric__sub { font-size: 13px; color: var(--text-secondary); max-width: 32ch; }

/* Grid helpers */
.grid { display: grid; gap: 1px; background: var(--border-subtle); }
.grid > * { background: var(--bg-canvas); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 860px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

.cards { display: grid; gap: 16px; }
.cards--2 { grid-template-columns: repeat(2, 1fr); }
.cards--3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .cards--3 { grid-template-columns: 1fr; } .cards--2 { grid-template-columns: 1fr; } }

/* Section header */
.section-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  margin-bottom: 48px;
  align-items: end;
}
.section-head__right { color: var(--text-secondary); max-width: 56ch; }
@media (max-width: 780px) {
  .section-head { grid-template-columns: 1fr; gap: 16px; }
}

/* Feature row */
.feature-row {
  display: grid;
  grid-template-columns: 160px 1fr 1fr;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.feature-row:last-child { border-bottom: 0; }
.feature-row__tag { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); letter-spacing: 0.08em; text-transform: uppercase; padding-top: 2px; }
.feature-row__title { font-family: var(--font-display); font-size: 20px; letter-spacing: -0.012em; margin-bottom: 6px; }
.feature-row__body { color: var(--text-secondary); font-size: 14px; }
@media (max-width: 780px) { .feature-row { grid-template-columns: 1fr; gap: 8px; } }

/* Hero */
.hero {
  position: relative;
  padding: clamp(64px, 9vw, 128px) 0 clamp(56px, 7vw, 96px);
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(var(--border-subtle) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(1000px 600px at 80% 20%, #000 0%, transparent 65%);
  -webkit-mask-image: radial-gradient(1000px 600px at 80% 20%, #000 0%, transparent 65%);
  opacity: 0.8;
}
.hero__inner { position: relative; }

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 64px 0 28px;
  background: var(--bg-sunken);
  margin-top: 0;
}
.footer__grid {
  display: grid; grid-template-columns: 2fr auto auto; gap: 48px 80px; justify-content: space-between;
}
.footer__col h5 {
  font-family: var(--font-mono); font-size: 11px; color: var(--text-muted);
  letter-spacing: 0.1em; text-transform: uppercase; margin: 0 0 14px;
  font-weight: 500;
}
.footer__col a { display: block; font-size: 14px; color: var(--text-secondary); padding: 5px 0; transition: color 120ms ease; }
.footer__col a:hover { color: var(--text-primary); }
.footer__legal {
  margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--border-subtle);
  display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  color: var(--text-muted); font-size: 12px; font-family: var(--font-mono);
}
@media (max-width: 900px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* Utility */
.mt-sm { margin-top: 12px; }
.mt-md { margin-top: 24px; }
.mt-lg { margin-top: 48px; }
.mt-xl { margin-top: 80px; }

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 10px; border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em;
  color: var(--text-secondary);
}

/* Schema/diagram base */
.schema {
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, var(--bg-elevated), var(--bg-canvas));
  overflow: hidden;
  position: relative;
}
.schema__label {
  position: absolute; top: 16px; left: 16px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-muted);
  display: inline-flex; align-items: center; gap: 8px;
}
.schema__label::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity 600ms ease, transform 600ms ease; }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* Cookie banner */
.cookie {
  position: fixed; bottom: 16px; left: 16px; right: 16px;
  max-width: 560px; margin: 0 auto;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  padding: 16px 18px;
  display: flex; align-items: center; gap: 16px;
  font-size: 13px; color: var(--text-secondary);
  box-shadow: 0 24px 48px -12px rgba(0,0,0,0.35);
  z-index: 40;
}
.cookie.hidden { display: none; }
.cookie button { white-space: nowrap; }

/* Forms */
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); }
.field input, .field textarea, .field select {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 12px 14px;
  border-radius: var(--r-sm);
  font-family: var(--font-body); font-size: 14px;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-ring);
}
.field textarea { min-height: 120px; resize: vertical; font-family: var(--font-body); }
.checkbox { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--text-secondary); }
.checkbox input { margin-top: 3px; accent-color: var(--accent); }

/* Tweaks panel */
.tweaks {
  position: fixed; bottom: 20px; right: 20px;
  width: 280px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  padding: 16px;
  box-shadow: 0 24px 48px -12px rgba(0,0,0,0.45);
  z-index: 60;
  font-size: 13px;
  display: none;
}
.tweaks.is-open { display: block; }
.tweaks h4 { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin: 0 0 12px; font-weight: 500; }
.tweaks__row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.tweaks__row label { font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); }
.tweaks__opts { display: flex; gap: 6px; flex-wrap: wrap; }
.tweaks__opt {
  padding: 6px 10px; border-radius: var(--r-sm);
  border: 1px solid var(--border-subtle); background: transparent;
  color: var(--text-secondary); font-size: 12px; cursor: pointer;
  font-family: var(--font-body);
}
.tweaks__opt:hover { border-color: var(--border-hover); color: var(--text-primary); }
.tweaks__opt[aria-pressed="true"] { border-color: var(--accent); color: var(--text-primary); background: var(--accent-soft); }
.tweaks__swatch { width: 22px; height: 22px; border-radius: 999px; padding: 0; }
.tweaks__swatch[aria-pressed="true"] { box-shadow: 0 0 0 2px var(--bg-elevated), 0 0 0 4px var(--text-primary); }


/* ---------- Final CTA block ---------- */
.cta-final {
  position: relative;
  overflow: hidden;
}
.cta-final__inner {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 64px 56px;
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--accent) 4%, var(--bg-elevated)) 0%, var(--bg-elevated) 100%);
  overflow: hidden;
}
.cta-final__inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in oklab, var(--text-primary) 6%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklab, var(--text-primary) 6%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 60% 80% at 80% 50%, #000 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.5;
}
.cta-final__inner::after {
  content: "";
  position: absolute;
  right: -120px;
  top: 50%;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in oklab, var(--accent) 18%, transparent) 0%, transparent 65%);
  transform: translateY(-50%);
  pointer-events: none;
}
.cta-final__inner > * { position: relative; z-index: 1; }

.cta-final__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 28px 0;
}
.cta-final__step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.cta-final__num {
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.04em;
  padding-top: 2px;
  flex-shrink: 0;
}
.cta-final__step-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15px;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.cta-final__step-body {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-top: 4px;
}

@media (max-width: 880px) {
  .cta-final__inner { padding: 40px 28px; }
  .cta-final__steps { grid-template-columns: 1fr; gap: 16px; padding: 20px 0; }
}