/* ==========================================================================
   OMNOXA AI — Design System
   Unified Intelligence. Universal Control.
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  /* Brand */
  --brand-900: #0A0E27;
  --brand-800: #111634;
  --brand-700: #1B2150;
  --brand-600: #262C6B;
  --indigo-700: #4338CA;
  --indigo-600: #4F46E5;
  --indigo-500: #6366F1;
  --violet-500: #8B5CF6;
  --violet-400: #A78BFA;
  --cyan-400: #22D3EE;
  --cyan-300: #67E8F9;

  /* Surfaces (white theme) */
  --bg: #FFFFFF;
  --bg-soft: #FAFBFC;
  --bg-muted: #F4F6FB;
  --bg-elevated: #FFFFFF;
  --surface-border: #ECEFF6;
  --surface-border-strong: #E2E6F0;

  /* Text */
  --ink: #0B1020;
  --ink-2: #2A3158;
  --ink-3: #5A6388;
  --muted: #7C85A6;
  --muted-2: #98A1BD;

  /* Accents */
  --accent: #4F46E5;
  --accent-2: #8B5CF6;
  --accent-3: #22D3EE;
  --grad: linear-gradient(120deg, #4F46E5 0%, #7C5CFC 45%, #22D3EE 100%);
  --grad-soft: linear-gradient(120deg, rgba(79,70,229,.12), rgba(139,92,246,.10) 50%, rgba(34,211,238,.12));
  --grad-text: linear-gradient(110deg, #4F46E5 0%, #8B5CF6 50%, #22D3EE 100%);

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(11,16,32,.04), 0 1px 1px rgba(11,16,32,.03);
  --shadow-sm: 0 2px 6px rgba(11,16,32,.05), 0 1px 2px rgba(11,16,32,.04);
  --shadow-md: 0 8px 24px rgba(11,16,32,.06), 0 2px 6px rgba(11,16,32,.04);
  --shadow-lg: 0 24px 60px rgba(11,16,32,.10), 0 8px 24px rgba(11,16,32,.06);
  --shadow-glow: 0 20px 60px rgba(79,70,229,.18);

  /* Radii */
  --r-xs: 8px;
  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 30px;
  --r-2xl: 40px;
  --r-pill: 999px;

  /* Layout */
  --container: 1200px;
  --container-narrow: 880px;
  --nav-h: 72px;

  /* Motion */
  --ease: cubic-bezier(.2, .8, .2, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --t-fast: .18s;
  --t: .28s;
  --t-slow: .5s;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo,
               Consolas, monospace;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
html:focus-within { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
ul, ol { list-style: none; padding: 0; }
hr { border: none; border-top: 1px solid var(--surface-border); }

::selection { background: rgba(79,70,229,.18); color: var(--brand-900); }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.08;
  color: var(--ink);
}
h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); letter-spacing: -.035em; }
h2 { font-size: clamp(2rem, 4vw, 3.1rem); letter-spacing: -.03em; }
h3 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); letter-spacing: -.02em; }
h4 { font-size: 1.15rem; letter-spacing: -.01em; }
p { color: var(--ink-3); }
.lead {
  font-size: clamp(1.1rem, 1.6vw, 1.32rem);
  line-height: 1.6;
  color: var(--ink-3);
  font-weight: 400;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--indigo-600);
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1.5px;
  background: var(--grad);
  border-radius: 2px;
}
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}
.container.narrow { max-width: var(--container-narrow); }
.section { padding: clamp(72px, 10vw, 140px) 0; }
.section.tight { padding: clamp(56px, 7vw, 96px) 0; }
.section-soft { background: var(--bg-soft); }
.section-muted { background: var(--bg-muted); }
.section-dark {
  background: var(--brand-900);
  color: #fff;
}
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
.section-dark p { color: rgba(255,255,255,.7); }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.center { text-align: center; }
.center .eyebrow { justify-content: center; }
.mx-auto { margin-inline: auto; }
.maxw-640 { max-width: 640px; }
.maxw-720 { max-width: 720px; }

.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head.center { margin-inline: auto; }
.section-head p { margin-top: 18px; font-size: 1.12rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  font-weight: 600;
  font-size: .96rem;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease),
              background var(--t) var(--ease), border-color var(--t) var(--ease);
  white-space: nowrap;
}
.btn .arrow { transition: transform var(--t) var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

.btn-primary {
  background: var(--brand-900);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  background: var(--brand-800);
}
.btn-grad {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 10px 30px rgba(79,70,229,.32);
}
.btn-grad:hover { transform: translateY(-2px); box-shadow: 0 16px 44px rgba(79,70,229,.42); }
.btn-ghost {
  border-color: var(--surface-border-strong);
  color: var(--ink);
  background: var(--bg);
}
.btn-ghost:hover { border-color: var(--indigo-500); color: var(--indigo-600); transform: translateY(-2px); }
.btn-soft {
  background: var(--bg-muted);
  color: var(--ink);
}
.btn-soft:hover { background: #ECEEF7; transform: translateY(-2px); }
.btn-lg { padding: 16px 30px; font-size: 1.02rem; }
.btn-sm { padding: 10px 18px; font-size: .88rem; }
.btn-block { width: 100%; }

/* ---------- Badges & pills ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  font-size: .82rem;
  font-weight: 600;
  border-radius: var(--r-pill);
  background: var(--bg-muted);
  color: var(--ink-2);
  border: 1px solid var(--surface-border);
}
.badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 4px rgba(34,211,238,.18);
}
.badge-grad {
  background: var(--grad-soft);
  border-color: rgba(79,70,229,.18);
  color: var(--indigo-600);
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--surface-border);
  border-radius: var(--r-lg);
  padding: 32px;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease),
              border-color var(--t) var(--ease);
  position: relative;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.card-feature { display: flex; flex-direction: column; gap: 18px; height: 100%; }
.card-feature h3 { font-size: 1.32rem; }
.card-feature p { font-size: .98rem; }
.card-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: var(--grad-soft);
  border: 1px solid rgba(79,70,229,.16);
  color: var(--indigo-600);
}
.card-icon svg { width: 26px; height: 26px; }
.card-link {
  margin-top: auto;
  display: inline-flex; align-items: center; gap: 7px;
  font-weight: 600; font-size: .92rem;
  color: var(--indigo-600);
}
.card-link .arrow { transition: transform var(--t) var(--ease); }
.card:hover .card-link .arrow { transform: translateX(3px); }

/* gradient hairline card */
.card-glass {
  background: linear-gradient(180deg, #fff, #FCFDFF);
  border: 1px solid var(--surface-border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
}

/* ---------- Navbar ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.78);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.nav.scrolled { border-bottom-color: var(--surface-border); }
.nav-inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 700; letter-spacing: -.02em; }
.brand .mark { width: 34px; height: 34px; flex: none; }
.brand .name { font-size: 1.12rem; color: var(--ink); }
.brand .name b { font-weight: 800; }
.brand .name span { color: var(--indigo-600); }
.nav-links {
  display: flex; align-items: center; gap: 4px;
  margin-inline: auto;
}
.nav-links a {
  padding: 9px 14px;
  font-size: .94rem;
  font-weight: 500;
  color: var(--ink-2);
  border-radius: var(--r-pill);
  transition: color var(--t) var(--ease), background var(--t) var(--ease);
}
.nav-links a:hover { color: var(--ink); background: var(--bg-muted); }
.nav-links a.active { color: var(--indigo-600); background: var(--grad-soft); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: 12px;
  border: 1px solid var(--surface-border);
  background: var(--bg);
  place-items: center;
}
.nav-toggle span {
  width: 18px; height: 1.6px; background: var(--ink); position: relative;
}
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 1.6px; background: var(--ink);
  transition: transform var(--t) var(--ease), top var(--t) var(--ease);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { top: 0; transform: rotate(45deg); }
body.nav-open .nav-toggle span::after { top: 0; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(110px, 16vw, 200px) 0 clamp(80px, 10vw, 130px);
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
}
.hero-bg::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 50% at 50% 0%, rgba(99,102,241,.16), transparent 70%),
    radial-gradient(40% 40% at 85% 20%, rgba(34,211,238,.10), transparent 70%),
    radial-gradient(40% 40% at 12% 30%, rgba(139,92,246,.12), transparent 70%);
}
.hero-grid {
  position: absolute; inset: 0; z-index: -1;
  background-image:
    linear-gradient(var(--surface-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--surface-border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(60% 60% at 50% 30%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(60% 60% at 50% 30%, #000 0%, transparent 75%);
  opacity: .6;
}
.hero-inner { max-width: 920px; }
.hero h1 { margin: 24px 0 0; }
.hero .lead { margin-top: 26px; max-width: 640px; }
.hero-actions { margin-top: 40px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-meta {
  margin-top: 56px;
  display: flex; gap: 36px; flex-wrap: wrap;
  color: var(--muted);
  font-size: .9rem;
}
.hero-meta strong { color: var(--ink); font-size: 1.6rem; font-weight: 700; display: block; letter-spacing: -.02em; }

/* ---------- Marquee / logos ---------- */
.marquee {
  display: flex; align-items: center; justify-content: center;
  gap: 56px; flex-wrap: wrap;
  color: var(--muted-2);
  font-weight: 600;
  letter-spacing: .02em;
  opacity: .85;
}
.marquee span { font-size: 1.05rem; }

/* ---------- Feature row ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.split.reverse .split-media { order: 2; }
.split-media {
  border-radius: var(--r-xl);
  background: var(--grad-soft);
  border: 1px solid var(--surface-border);
  padding: 32px;
  min-height: 360px;
  position: relative;
  overflow: hidden;
}

/* ---------- Code/terminal mock ---------- */
.mock {
  background: var(--brand-900);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  color: #E5E9F5;
  font-family: var(--font-mono);
  font-size: .84rem;
}
.mock-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px;
  background: rgba(255,255,255,.04);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.mock-bar .d { width: 11px; height: 11px; border-radius: 50%; }
.mock-bar .d.r { background: #FF5F57; }
.mock-bar .d.y { background: #FEBC2E; }
.mock-bar .d.g { background: #28C840; }
.mock-bar .t { margin-left: 8px; color: rgba(255,255,255,.5); font-size: .76rem; }
.mock-body { padding: 20px 22px; line-height: 1.9; }
.mock-body .k { color: #A78BFA; }
.mock-body .s { color: #67E8F9; }
.mock-body .c { color: rgba(255,255,255,.4); }
.mock-body .n { color: #FCD34D; }
.mock-body .ok { color: #34D399; }

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stat .num {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -.03em;
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat .label { color: var(--muted); margin-top: 6px; font-size: .94rem; }

/* ---------- Steps / timeline ---------- */
.steps { display: grid; gap: 0; counter-reset: step; }
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 28px;
  padding: 28px 0;
  border-top: 1px solid var(--surface-border);
}
.step:last-child { border-bottom: 1px solid var(--surface-border); }
.step .num {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--bg-muted);
  border: 1px solid var(--surface-border);
  font-weight: 700; color: var(--indigo-600);
}
.step h3 { margin-bottom: 8px; }

/* ---------- Pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.price {
  display: flex; flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--surface-border);
  border-radius: var(--r-xl);
  padding: 34px;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);
}
.price:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.price.featured {
  border-color: transparent;
  background: linear-gradient(180deg, #fff, #FBFAFF);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  position: relative;
}
.price.featured::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: var(--r-xl); padding: 1.5px;
  background: var(--grad);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
}
.price .tier { font-weight: 600; color: var(--indigo-600); font-size: .9rem; letter-spacing: .04em; text-transform: uppercase; }
.price .amount { font-size: 2.8rem; font-weight: 800; letter-spacing: -.03em; margin: 10px 0 2px; }
.price .per { color: var(--muted); font-size: .9rem; }
.price ul { margin: 26px 0; display: grid; gap: 13px; }
.price li { display: flex; gap: 11px; align-items: flex-start; color: var(--ink-2); font-size: .95rem; }
.price li svg { width: 18px; height: 18px; color: var(--indigo-600); flex: none; margin-top: 3px; }
.price .btn { margin-top: auto; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; max-width: 820px; margin-inline: auto; }
.faq-item {
  border: 1px solid var(--surface-border);
  border-radius: var(--r-md);
  background: var(--bg);
  overflow: hidden;
}
.faq-q {
  width: 100%; text-align: left;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 22px 24px;
  font-weight: 600; font-size: 1.05rem; color: var(--ink);
}
.faq-q .ico {
  width: 24px; height: 24px; flex: none; position: relative;
  transition: transform var(--t) var(--ease);
}
.faq-q .ico::before, .faq-q .ico::after {
  content: ""; position: absolute; left: 50%; top: 50%; background: var(--indigo-600);
  transform: translate(-50%,-50%); border-radius: 2px;
}
.faq-q .ico::before { width: 14px; height: 2px; }
.faq-q .ico::after { width: 2px; height: 14px; transition: opacity var(--t) var(--ease); }
.faq-item.open .ico { transform: rotate(180deg); }
.faq-item.open .ico::after { opacity: 0; }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height var(--t-slow) var(--ease-out);
}
.faq-a-inner { padding: 0 24px 24px; color: var(--ink-3); }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  border-radius: var(--r-2xl);
  background: var(--brand-900);
  color: #fff;
  padding: clamp(48px, 7vw, 84px);
  overflow: hidden;
  text-align: center;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(50% 60% at 20% 0%, rgba(99,102,241,.4), transparent 70%),
    radial-gradient(40% 50% at 90% 100%, rgba(34,211,238,.28), transparent 70%);
}
.cta-band > * { position: relative; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.72); max-width: 560px; margin: 18px auto 0; }
.cta-band .hero-actions { justify-content: center; }
.btn-on-dark {
  background: #fff; color: var(--brand-900);
}
.btn-on-dark:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-outline-dark {
  border: 1px solid rgba(255,255,255,.28); color: #fff; background: rgba(255,255,255,.04);
}
.btn-outline-dark:hover { border-color: rgba(255,255,255,.6); background: rgba(255,255,255,.1); }

/* ---------- Footer ---------- */
.footer {
  background: var(--brand-900);
  color: rgba(255,255,255,.7);
  padding: 80px 0 36px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: 40px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer .brand .name { color: #fff; }
.footer .brand .name span { color: var(--cyan-300); }
.footer-tag { margin-top: 18px; max-width: 280px; color: rgba(255,255,255,.6); font-size: .94rem; }
.footer-col h5 {
  color: #fff; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase;
  margin-bottom: 18px; font-weight: 600;
}
.footer-col ul { display: grid; gap: 12px; }
.footer-col a {
  color: rgba(255,255,255,.62); font-size: .94rem;
  transition: color var(--t) var(--ease);
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  flex-wrap: wrap;
  padding-top: 28px;
  font-size: .88rem;
  color: rgba(255,255,255,.5);
}
.footer-bottom .social { display: flex; gap: 14px; }
.footer-bottom .social a {
  width: 36px; height: 36px; border-radius: 10px;
  border: 1px solid rgba(255,255,255,.14);
  display: grid; place-items: center;
  color: rgba(255,255,255,.7);
  transition: all var(--t) var(--ease);
}
.footer-bottom .social a:hover { border-color: var(--cyan-300); color: #fff; transform: translateY(-2px); }

/* ---------- Page header (inner pages) ---------- */
.page-head {
  padding: clamp(96px, 13vw, 160px) 0 clamp(48px, 7vw, 80px);
  position: relative; overflow: hidden;
}
.page-head .hero-bg { z-index: -1; }
.page-head h1 { margin-top: 18px; }
.page-head .lead { margin-top: 22px; max-width: 620px; }

/* ---------- Misc ---------- */
.kbd {
  font-family: var(--font-mono); font-size: .8rem;
  padding: 3px 8px; border-radius: 6px;
  background: var(--bg-muted); border: 1px solid var(--surface-border);
  color: var(--ink-2);
}
.divider { height: 1px; background: var(--surface-border); margin: 64px 0; }
.list-check { display: grid; gap: 14px; }
.list-check li { display: flex; gap: 12px; align-items: flex-start; color: var(--ink-2); }
.list-check svg { width: 20px; height: 20px; color: var(--indigo-600); flex: none; margin-top: 2px; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .split { gap: 40px; }
}
@media (max-width: 860px) {
  .nav-links, .nav-cta .btn-ghost, .nav-cta .btn-soft { display: none; }
  .nav-toggle { display: grid; }
  .nav-links {
    position: fixed; inset: var(--nav-h) 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--bg);
    border-bottom: 1px solid var(--surface-border);
    padding: 16px 24px 24px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
  }
  body.nav-open .nav-links { display: flex; transform: none; opacity: 1; pointer-events: auto; }
  body.nav-open .nav-cta .btn-ghost { display: inline-flex; }
  .nav-links a { padding: 14px 16px; font-size: 1rem; }
  .nav-cta .btn-primary { display: inline-flex; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .split, .split.reverse { grid-template-columns: 1fr; }
  .split.reverse .split-media { order: 0; }
  .price-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .section-head { margin-bottom: 36px; }
}
@media (max-width: 520px) {
  .stats { grid-template-columns: 1fr; }
  .hero-meta { gap: 24px; }
  .card, .price { padding: 24px; }
}