/* Vextra AI — B2B marketing site
   Direction: light, engineered, teal + orange, black anchor. Not the Liquid-Glass dark
   template — built bespoke for this brief. */

:root {
  /* surfaces */
  --bg:        oklch(97.3% 0.008 196);
  --surface:   oklch(100% 0 0);
  --surface-2: oklch(95.5% 0.014 196);
  --ink:       oklch(19% 0.03 196);
  --fg:        var(--ink);
  --muted:     oklch(46% 0.02 196);
  --muted-2:   oklch(54% 0.016 196); /* 4.68:1 vs --bg, verified — was 3.65:1 at 60% */
  --border:    oklch(89% 0.014 196);
  --border-strong: oklch(80% 0.02 196);

  /* brand */
  --teal:       oklch(63% 0.115 196);
  --teal-deep:  oklch(38% 0.085 196);
  --teal-soft:  oklch(93% 0.03 196);
  --orange:      oklch(70% 0.16 48);
  --orange-deep: oklch(56% 0.17 40);
  --orange-soft: oklch(94% 0.05 60);

  /* status */
  --ok:   oklch(63% 0.135 152);
  --warn: oklch(76% 0.14 85);

  /* type */
  --font-display: 'Bricolage Grotesque', 'Sinkin Sans', system-ui, sans-serif;
  --font-body: 'Public Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 26px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px oklch(20% 0.03 196 / 0.06);
  --shadow-md: 0 12px 32px -12px oklch(40% 0.08 196 / 0.22);
  --shadow-lg: 0 28px 60px -20px oklch(30% 0.09 196 / 0.28);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

.wrap {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 64px);
}

.kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-deep);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.kicker::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--orange);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
}

.section-head { max-width: 640px; margin-bottom: clamp(32px, 5vw, 56px); }
.section-head h2 { font-size: clamp(32px, 4vw, 48px); margin-top: 12px; }
.section-head p { color: var(--muted); font-size: 17px; margin-top: 14px; }

.eyebrow-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); }
.reveal.in { opacity: 1; transform: translateY(0); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px clamp(20px, 5vw, 64px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease), padding 0.3s var(--ease);
}
.nav.scrolled {
  background: oklch(100% 0 0 / 0.78);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  box-shadow: 0 1px 0 var(--border);
  padding-block: 12px;
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 19px; }
.brand-mark { width: 34px; height: 34px; position: relative; }
.brand-mark svg { width: 100%; height: 100%; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 5px;
  box-shadow: var(--shadow-sm);
}
.nav-links a {
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--ink); background: var(--teal-soft); }
/* .nav-links a.nav-cta (not plain .nav-cta): outspecifies .nav-links a / a:hover above,
   which otherwise win the cascade and silently flip this pill back to muted-gray text. */
.nav-links a.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--ink) 0%, var(--teal-deep) 150%);
  color: var(--surface);
  padding: 11px 20px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  border: none;
  transition: filter 0.25s var(--ease);
}
.nav-links a.nav-cta:hover { color: var(--surface); background: linear-gradient(135deg, var(--ink) 0%, var(--teal-deep) 150%); filter: brightness(1.15); }
.nav-burger { display: none; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border); background: var(--surface); align-items: center; justify-content: center; }
.nav-burger span, .nav-burger span::before, .nav-burger span::after {
  content: ''; display: block; width: 16px; height: 1.6px; background: var(--ink); position: relative; transition: transform 0.25s var(--ease), opacity 0.25s;
}
.nav-burger span::before { position: absolute; top: -5px; }
.nav-burger span::after { position: absolute; top: 5px; }
.nav-burger.open span { background: transparent; }
.nav-burger.open span::before { transform: rotate(45deg) translate(3.5px, 3.5px); }
.nav-burger.open span::after { transform: rotate(-45deg) translate(3.5px, -3.5px); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 90;
  background: var(--surface);
  padding: 100px 28px 40px;
  display: flex; flex-direction: column; gap: 4px;
  transform: translateY(-100%);
  transition: transform 0.45s var(--ease);
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu a { font-family: var(--font-display); font-size: 30px; padding: 14px 4px; border-bottom: 1px solid var(--border); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 120px;
  overflow: hidden;
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
.hero-fade {
  position: absolute; left: 0; right: 0; bottom: 0; height: 220px;
  background: linear-gradient(to bottom, transparent, var(--bg));
  z-index: 1; pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border);
  padding: 6px 14px 6px 6px; border-radius: var(--radius-pill);
  font-size: 13px; font-weight: 500; box-shadow: var(--shadow-sm);
  opacity: 0; transform: translateY(16px);
}
.hero-badge .dot { background: var(--orange-deep); color: var(--surface); font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: var(--radius-pill); }
.hero h1 {
  font-size: clamp(42px, 7vw, 84px);
  max-width: 17ch;
  margin-top: 24px;
}
.hero h1 em { font-style: normal; color: var(--teal-deep); position: relative; }
.hero h1 .accent {
  background: linear-gradient(100deg, var(--teal-deep), var(--orange-deep) 130%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
.hero-word { display: inline-block; opacity: 0; transform: translateY(28px); filter: blur(8px); margin-right: 0.22ch; }
.hero-sub {
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--muted);
  max-width: 46ch;
  margin-top: 22px;
  opacity: 0; transform: translateY(16px);
}
.hero-actions { display: flex; align-items: center; gap: 16px; margin-top: 34px; flex-wrap: wrap; opacity: 0; transform: translateY(16px); }
.btn {
  position: relative;
  display: inline-flex; align-items: center; gap: 9px;
  padding: 14px 26px;
  border-radius: var(--radius-pill);
  font-weight: 600; font-size: 15px;
  border: 1px solid transparent;
  isolation: isolate;
}
.btn-primary { background: var(--ink); color: var(--surface); }
.btn-primary::after {
  content: ''; position: absolute; inset: 0; border-radius: inherit; z-index: -1;
  background: linear-gradient(100deg, var(--teal-deep), var(--orange-deep));
  opacity: 0; transition: opacity 0.3s;
}
.btn-primary:hover::after { opacity: 1; }
.btn-ghost { background: var(--surface); border-color: var(--border-strong); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); }
.btn svg { width: 16px; height: 16px; }

.hero-meta {
  display: flex; align-items: center; gap: 28px;
  margin-top: 64px; padding-top: 24px; border-top: 1px solid var(--border);
  flex-wrap: wrap;
  opacity: 0; transform: translateY(16px);
}
.hero-meta-item { display: flex; flex-direction: column; gap: 2px; }
.hero-meta-item strong { font-family: var(--font-display); font-size: 22px; }
.hero-meta-item span { font-size: 12.5px; color: var(--muted); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.07em; }

/* ---------- flow strip ---------- */
.flow {
  padding: clamp(60px, 8vw, 110px) 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.flow-mesh {
  position: absolute;
  inset: -10%;
  z-index: 0;
  background:
    radial-gradient(38% 45% at 15% 20%, var(--teal-soft), transparent 70%),
    radial-gradient(42% 50% at 85% 30%, var(--orange-soft), transparent 70%),
    radial-gradient(46% 55% at 50% 90%, var(--teal-soft), transparent 70%);
  filter: blur(6px);
  animation: flowDrift 22s ease-in-out infinite alternate;
}
@keyframes flowDrift {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(-3%, 2%) scale(1.06); }
  100% { transform: translate(3%, -2%) scale(1.02); }
}
@media (prefers-reduced-motion: reduce) { .flow-mesh { animation: none; } }
.flow .wrap { position: relative; z-index: 1; }
.flow-track {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  margin-top: 48px;
}
.flow-node {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  text-align: left;
  position: relative;
  overflow: hidden;
}
.flow-node .num { font-family: var(--font-mono); font-size: 12px; color: var(--muted-2); }
.flow-node h3 { font-size: 19px; margin-top: 10px; }
.flow-node p { color: var(--muted); font-size: 14px; margin-top: 8px; }
.flow-node .glow { position: absolute; width: 140px; height: 140px; border-radius: 50%; filter: blur(50px); opacity: 0.35; top: -50px; right: -50px; }
.flow-node.n1 .glow { background: var(--teal); }
.flow-node.n2 .glow { background: var(--orange); }
.flow-node.n3 .glow { background: var(--teal-deep); }
.flow-arrow { width: 34px; height: 12px; color: var(--border-strong); }
.flow-arrow svg { width: 100%; height: 100%; }
.flow-arrow .beam { stroke: var(--orange); stroke-dasharray: 30; stroke-dashoffset: 0; }

/* pinned scroll choreography — JS adds .js-flow-pin only when ScrollTrigger + motion are available */
.flow-track.js-flow-pin { perspective: 800px; }
.flow-track.js-flow-pin .flow-node { opacity: 0; transform: rotateX(-10deg) translateY(28px) scale(0.92); }
.flow-track.js-flow-pin .flow-arrow .beam { stroke-dashoffset: 30; }

/* ---------- modules ---------- */
.modules { padding: clamp(70px, 9vw, 130px) 0; }
.module-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.module-grid { perspective: 1000px; }
.module-card.reveal { opacity: 0; transform: rotateX(-14deg) translateY(46px) scale(0.94); transition: none; }
.module-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.35s var(--ease);
  transform-style: preserve-3d;
  will-change: transform;
}
.module-card:hover { box-shadow: var(--shadow-md); border-color: var(--border-strong); transform: translateY(-4px); }
.module-card::before {
  content: ''; position: absolute; width: 160px; height: 160px; border-radius: 50%;
  filter: blur(60px); opacity: 0.24; top: -60px; right: -60px; pointer-events: none;
}
.module-card.m1::before { background: var(--teal); }
.module-card.m2::before { background: var(--orange); }
.module-card.m3::before { background: var(--teal-deep); }
.module-icon {
  width: 46px; height: 46px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.module-icon svg { width: 22px; height: 22px; }
.module-card.m1 .module-icon { background: var(--teal-soft); color: var(--teal-deep); }
.module-card.m2 .module-icon { background: var(--orange-soft); color: var(--orange-deep); }
.module-card.m3 .module-icon { background: var(--surface-2); color: var(--ink); }
.module-card h3 { font-size: 23px; }
.module-card p { color: var(--muted); font-size: 15px; margin-top: 10px; }
.module-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.module-tags span { font-family: var(--font-mono); font-size: 11.5px; background: var(--bg); border: 1px solid var(--border); padding: 5px 10px; border-radius: var(--radius-pill); color: var(--muted); }
.module-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 22px; font-weight: 600; font-size: 14px; color: var(--ink); }
.module-link svg { width: 14px; height: 14px; transition: transform 0.25s var(--ease); }
.module-card:hover .module-link svg { transform: translate(3px, -3px); }

/* ---------- feature rows (chess) ---------- */
.feature-row {
  padding: clamp(60px, 8vw, 110px) 0;
  border-top: 1px solid var(--border);
}
/* section-rhythm tints: white -> teal -> white -> orange, reused tokens only */
.tint-teal { background: var(--teal-soft); }
.tint-orange { background: var(--orange-soft); }
.feature-row .wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}
.feature-row.rev .wrap { direction: rtl; }
.feature-row.rev .wrap > * { direction: ltr; }
.feature-copy h3 { font-size: clamp(28px, 3.4vw, 40px); margin-top: 14px; }
.feature-copy p { color: var(--muted); font-size: 16px; margin-top: 16px; max-width: 46ch; }
.feature-list { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-direction: column; gap: 12px; }
.feature-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 15px; }
.feature-list svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; color: var(--ok); }

.feature-visual {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

/* roadmap timeline (ERP) */
.roadmap { display: flex; flex-direction: column; gap: 0; }
.roadmap-step { display: flex; gap: 16px; padding: 14px 0; position: relative; }
.roadmap-step:not(:last-child)::before {
  content: ''; position: absolute; left: 15px; top: 38px; bottom: -14px; width: 1.5px; background: var(--border);
}
.roadmap-dot { width: 32px; height: 32px; border-radius: 50%; background: var(--teal-soft); color: var(--teal-deep); display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-size: 12px; font-weight: 700; flex-shrink: 0; }
.roadmap-step.active .roadmap-dot { background: var(--orange-deep); color: var(--surface); }
.roadmap-body strong { font-size: 15px; display: block; }
.roadmap-body span { font-size: 13.5px; color: var(--muted); }

/* mock interview panel (AI) */
.interview-panel { display: flex; flex-direction: column; gap: 14px; }
.interview-topbar { display: flex; align-items: center; justify-content: space-between; }
.interview-topbar .timer { color: var(--muted); }
.interview-topbar .rec { display: flex; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 12px; color: var(--orange-deep); }
.interview-topbar .rec::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--orange-deep); animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }
.interview-q { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 16px; font-size: 14.5px; }
.interview-score { display: flex; gap: 10px; }
.score-chip { flex: 1; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px; text-align: center; }
.score-chip strong { display: block; font-family: var(--font-display); font-size: 20px; }
.score-chip span { font-size: 11px; color: var(--muted); font-family: var(--font-mono); }
.score-bar { height: 6px; border-radius: 999px; background: var(--border); overflow: hidden; margin-top: 6px; }
.score-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--teal), var(--orange)); border-radius: inherit; transform-origin: left; transform: scaleX(0); transition: transform 1s var(--ease); }

/* custom software workflow */
.workflow-chain { display: flex; flex-direction: column; gap: 10px; }
.workflow-item { display: flex; align-items: center; gap: 14px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 14px 16px; }
.workflow-item .idx { font-family: var(--font-mono); font-size: 12px; color: var(--muted-2); width: 20px; }
.workflow-item strong { font-size: 14.5px; display: block; }
.workflow-item span { font-size: 12.5px; color: var(--muted); }
.workflow-item .stack { margin-left: auto; display: flex; gap: 6px; }
.workflow-item .stack em { font-style: normal; width: 8px; height: 8px; border-radius: 50%; display: block; }

/* ---------- why us ---------- */
.why { padding: clamp(70px, 9vw, 130px) 0; background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.why-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.why-item { background: var(--surface); padding: 30px 24px; }
.why-item svg { width: 24px; height: 24px; color: var(--orange-deep); }
.why-item h3 { font-size: 17px; margin-top: 16px; }
.why-item p { font-size: 13.5px; color: var(--muted); margin-top: 8px; }

/* ---------- contact ---------- */
.contact { padding: clamp(70px, 9vw, 130px) 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info h2 { font-size: clamp(32px, 4vw, 46px); }
.contact-info p { color: var(--muted); margin-top: 16px; max-width: 42ch; }
.contact-detail { display: flex; align-items: flex-start; gap: 12px; margin-top: 20px; }
.contact-detail svg { width: 18px; height: 18px; color: var(--teal-deep); margin-top: 2px; }
.contact-detail strong { display: block; font-size: 14px; }
.contact-detail span { font-size: 13.5px; color: var(--muted); }

.form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 30px; box-shadow: var(--shadow-sm); }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 12.5px; font-weight: 600; margin-bottom: 6px; color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--bg); color: var(--ink);
  font: inherit; font-size: 14.5px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px var(--teal);
  /* solid --teal ring: 3.43:1 vs surface, verified — --teal-soft measured 1.22:1, invisible to low-vision users */
}
.field.err input, .field.err textarea { border-color: var(--orange-deep); }
.field .errmsg { display: none; font-size: 12px; color: var(--orange-deep); margin-top: 5px; }
.field.err .errmsg { display: block; }
.form-submit { width: 100%; justify-content: center; }
.form-status { margin-top: 14px; font-size: 13.5px; text-align: center; display: none; }
.form-status.show { display: block; }
.form-status.ok { color: var(--ok); }

/* ---------- footer ---------- */
.footer { padding: 48px 0 32px; border-top: 1px solid var(--border); }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; flex-wrap: wrap; }
.footer-brand p { color: var(--muted); font-size: 14px; margin-top: 12px; max-width: 32ch; }
.footer-cols { display: flex; gap: 56px; flex-wrap: wrap; }
.footer-col-title { font-family: var(--font-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted-2); margin-bottom: 12px; }
.footer-col a { display: block; font-size: 14px; color: var(--muted); padding: 5px 0; }
.footer-col a:hover { color: var(--ink); }
.footer-bottom { margin-top: 44px; padding-top: 20px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; font-size: 12.5px; color: var(--muted-2); flex-wrap: wrap; gap: 10px; }

/* ---------- magnetic cursor dot (desktop flourish) ---------- */
.cursor-dot { position: fixed; width: 8px; height: 8px; border-radius: 50%; background: var(--orange-deep); pointer-events: none; z-index: 200; transform: translate(-50%,-50%); transition: opacity 0.2s; }
@media (hover: hover) and (pointer: fine) { .cursor-dot.active { opacity: 1; } }
.cursor-dot { opacity: 0; }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .module-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-row .wrap, .feature-row.rev .wrap { grid-template-columns: 1fr; direction: ltr; }
  .contact-grid { grid-template-columns: 1fr; }
  .flow-track { grid-template-columns: 1fr; }
  .flow-arrow { transform: rotate(90deg); justify-self: center; }
}
@media (max-width: 820px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-burger { display: flex; }
}
@media (max-width: 600px) {
  .hero { padding-top: 100px; }
  .hero-meta { gap: 20px; }
  .why-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; }
}