/* CortexWave — Dynamic-neural theme. Cortex wave, signal processing, fluid AI. */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --cortex: #0F172A;
  --cortex-2: #111d36;
  --cyan: #06B6D4;
  --violet: #7C3AED;
  --mist: #E2E8F0;
  --coral: #F97316;
  --ink: #0b1220;
  --muted: #94a3b8;
  --card: rgba(255, 255, 255, 0.04);
  --line: rgba(148, 163, 184, 0.18);
  --grad: linear-gradient(120deg, var(--cyan), var(--violet));
  --maxw: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--cortex);
  color: var(--mist);
  line-height: 1.65;
  overflow-x: hidden;
}
h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; line-height: 1.12; color: #fff; font-weight: 600; }
h1 { font-size: clamp(2.2rem, 5.2vw, 3.9rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.7rem); letter-spacing: -0.015em; }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); }
p { color: var(--mist); }
a { color: var(--cyan); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--coral); }
img { max-width: 100%; display: block; }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
section { padding: clamp(56px, 8vw, 110px) 0; position: relative; }
.eyebrow { text-transform: uppercase; letter-spacing: .22em; font-size: .72rem; color: var(--cyan); font-weight: 600; }
.lead { font-size: clamp(1rem, 1.6vw, 1.18rem); color: #cbd5e1; max-width: 620px; }
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 30px; border-radius: 999px; font-weight: 600;
  font-family: 'Space Grotesk', sans-serif; cursor: pointer; border: none;
  font-size: .98rem; transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 30px rgba(124, 58, 237, .35); }
.btn-primary:hover { background: var(--coral); color: #fff; transform: translateY(-3px); box-shadow: 0 14px 34px rgba(249, 115, 22, .4); }
.btn-ghost { background: transparent; color: var(--mist); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--cyan); color: #fff; transform: translateY(-2px); }

/* Header / nav */
header.site {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(15, 23, 42, 0.72); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.logo { display: flex; align-items: center; gap: 11px; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.32rem; color: #fff; }
.logo .mark { width: 34px; height: 34px; border-radius: 9px; background: var(--grad); position: relative; overflow: hidden; }
.logo .mark::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.6), transparent 60%); }
.logo b { color: var(--cyan); }
.nav-links { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav-links a { color: var(--mist); font-weight: 500; font-size: .96rem; }
.nav-links a:hover { color: #fff; }
.nav-cta { display: flex; align-items: center; gap: 16px; }
.burger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; padding: 8px; }
.burger span { width: 26px; height: 2px; background: var(--mist); transition: .3s; }

/* Hero */
.hero { padding-top: 150px; padding-bottom: 90px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 500px at 78% 12%, rgba(6, 182, 212, .22), transparent 60%),
    radial-gradient(700px 500px at 8% 90%, rgba(124, 58, 237, .22), transparent 60%);
  z-index: 0;
}
.hero .wrap { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero h1 { margin: 18px 0; }
.hero h1 .flow { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-actions { display: flex; gap: 16px; margin-top: 30px; flex-wrap: wrap; }
.hero-visual { position: relative; }
.hero-visual img { border-radius: 20px; border: 1px solid var(--line); box-shadow: 0 30px 80px rgba(0,0,0,.45); }
.hero-chip { position: absolute; bottom: -18px; left: -18px; background: var(--cortex-2); border: 1px solid var(--line); border-radius: 14px; padding: 14px 18px; display: flex; gap: 12px; align-items: center; box-shadow: 0 16px 40px rgba(0,0,0,.5); }
.hero-chip .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 4px rgba(6,182,212,.2); animation: pulse 1.8s infinite; }
.hero-chip small { color: var(--muted); display: block; font-size: .72rem; }
.hero-chip strong { color: #fff; font-family: 'Space Grotesk', sans-serif; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }

/* generic section heads */
.sec-head { max-width: 660px; margin-bottom: 46px; }
.sec-head.center { margin-left: auto; margin-right: auto; }
.sec-head h2 { margin: 12px 0 14px; }

/* Cards grid */
.grid { display: grid; gap: 24px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.wave-card {
  background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--cyan);
  border-radius: 16px; padding: 26px; position: relative; overflow: hidden;
  transition: transform .35s ease, border-color .35s ease, background .35s ease;
}
.wave-card::before {
  content: ""; position: absolute; right: -40px; top: -40px; width: 160px; height: 160px;
  background: radial-gradient(circle, rgba(6,182,212,.16), transparent 70%); border-radius: 50%;
}
.wave-card:hover { transform: translateY(-6px); border-left-color: var(--coral); background: rgba(255,255,255,.06); }
.wave-card .num { font-family: 'Space Grotesk', sans-serif; color: var(--cyan); font-weight: 700; font-size: .85rem; letter-spacing: .1em; }
.wave-card h3 { margin: 12px 0 8px; }
.wave-card p { color: #b6c2d6; font-size: .95rem; }
.wave-card .tag { display: inline-block; margin-top: 14px; font-size: .76rem; color: var(--violet); background: rgba(124,58,237,.12); padding: 5px 12px; border-radius: 999px; font-weight: 600; }

/* image card (catalog) */
.cat-card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; display: flex; flex-direction: column; transition: transform .35s ease, box-shadow .35s ease; }
.cat-card:hover { transform: translateY(-6px); box-shadow: 0 24px 50px rgba(0,0,0,.4); }
.cat-card img { aspect-ratio: 3/2; object-fit: cover; width: 100%; }
.cat-body { padding: 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.cat-cat { font-size: .74rem; text-transform: uppercase; letter-spacing: .14em; color: var(--cyan); font-weight: 600; }
.cat-ref { font-family: 'Space Grotesk', monospace; font-size: .76rem; color: var(--muted); }
.cat-meta { list-style: none; font-size: .86rem; color: #b6c2d6; display: grid; gap: 4px; }
.cat-meta li b { color: #fff; font-weight: 600; }
.cat-price { font-family: 'Space Grotesk', sans-serif; font-size: 1.25rem; color: #fff; font-weight: 700; margin-top: auto; }
.cat-price span { color: var(--cyan); }

/* divider quote */
.quote-band { background: linear-gradient(120deg, rgba(6,182,212,.12), rgba(124,58,237,.12)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: center; }
.quote-band q { font-family: 'Space Grotesk', sans-serif; font-size: clamp(1.4rem, 3.4vw, 2.3rem); color: #fff; font-style: normal; display: block; max-width: 880px; margin: 0 auto; }

/* industries pills */
.pills { display: flex; flex-wrap: wrap; gap: 14px; }
.pill { border: 1px solid var(--line); padding: 12px 22px; border-radius: 999px; font-weight: 500; color: var(--mist); background: var(--card); }
.pill:hover { border-color: var(--cyan); color: #fff; }

/* split editorial */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.split img { border-radius: 18px; border: 1px solid var(--line); }
.split.rev .txt { order: 2; }

/* horizontal features */
.feat-row { display: flex; gap: 22px; align-items: flex-start; padding: 22px 0; border-bottom: 1px solid var(--line); }
.feat-row:last-child { border-bottom: none; }
.feat-ic { flex: 0 0 52px; height: 52px; border-radius: 13px; background: var(--grad); display: grid; place-items: center; font-family: 'Space Grotesk', sans-serif; font-weight: 700; color: #fff; }
.feat-row h3 { margin-bottom: 4px; }
.feat-row p { color: #b6c2d6; font-size: .95rem; }

/* testimonials */
.tcard { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px; }
.tcard p { color: #e2e8f0; font-style: italic; }
.tcard .who { display: flex; align-items: center; gap: 12px; margin-top: 18px; }
.tcard .av { width: 44px; height: 44px; border-radius: 50%; background: var(--grad); display: grid; place-items: center; font-weight: 700; color: #fff; font-family: 'Space Grotesk', sans-serif; }
.tcard .who small { color: var(--muted); display: block; }
.tcard .who b { color: #fff; }

/* CTA band */
.cta-band { background: linear-gradient(120deg, var(--cyan), var(--violet)); border-radius: 26px; padding: clamp(40px, 6vw, 70px); text-align: center; position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 300px at 80% 20%, rgba(255,255,255,.18), transparent 60%); }
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.9); max-width: 560px; margin: 14px auto 26px; }
.cta-band .btn-primary { background: #fff; color: var(--cortex); box-shadow: 0 14px 34px rgba(0,0,0,.25); }
.cta-band .btn-primary:hover { background: var(--cortex); color: #fff; }

/* stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat { text-align: center; padding: 24px; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
.stat b { font-family: 'Space Grotesk', sans-serif; font-size: clamp(1.8rem, 4vw, 2.6rem); color: var(--cyan); display: block; }
.stat span { color: var(--muted); font-size: .9rem; }

/* page hero (inner) */
.page-hero { padding-top: 140px; padding-bottom: 50px; position: relative; }
.page-hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(700px 360px at 80% 0%, rgba(6,182,212,.18), transparent 60%); }
.page-hero .wrap { position: relative; z-index: 1; }
.breadcrumb { color: var(--muted); font-size: .85rem; margin-bottom: 10px; }
.breadcrumb a { color: var(--muted); }

/* Forms */
.form-card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: clamp(26px, 4vw, 44px); }
.field { margin-bottom: 20px; }
.field label { display: block; font-weight: 600; margin-bottom: 7px; color: #fff; font-size: .92rem; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 15px; border-radius: 11px; border: 1px solid var(--line);
  background: rgba(2, 6, 23, .5); color: #fff; font-family: inherit; font-size: .96rem; transition: border-color .25s ease;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(6,182,212,.18); }
.field textarea { min-height: 130px; resize: vertical; }
.field .err { color: var(--coral); font-size: .82rem; margin-top: 6px; display: none; }
.field.invalid .err { display: block; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--coral); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.success-msg { display: none; text-align: center; padding: 30px; }
.success-msg.show { display: block; animation: fadein .6s ease; }
.success-msg .ic { width: 64px; height: 64px; border-radius: 50%; background: var(--grad); display: grid; place-items: center; margin: 0 auto 18px; font-size: 1.8rem; color: #fff; }
@keyframes fadein { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* contact info cards */
.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.info-card { background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--cyan); border-radius: 14px; padding: 22px; }
.info-card small { color: var(--muted); text-transform: uppercase; letter-spacing: .12em; font-size: .7rem; }
.info-card p { color: #fff; margin-top: 6px; }

/* legal / prose */
.prose { max-width: 820px; }
.prose h2 { margin: 38px 0 14px; font-size: clamp(1.4rem, 2.6vw, 1.9rem); }
.prose h3 { margin: 26px 0 10px; color: var(--cyan); }
.prose p, .prose li { color: #c7d2e0; margin-bottom: 12px; }
.prose ul, .prose ol { padding-left: 22px; margin-bottom: 14px; }
.prose strong { color: #fff; }

/* filters */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.filter-btn { background: var(--card); border: 1px solid var(--line); color: var(--mist); padding: 9px 18px; border-radius: 999px; cursor: pointer; font-family: inherit; font-size: .88rem; transition: .25s; }
.filter-btn:hover { border-color: var(--cyan); color: #fff; }
.filter-btn.active { background: var(--grad); color: #fff; border-color: transparent; }

/* FAQ / about lists */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center; }
.cert-list { list-style: none; display: grid; gap: 12px; }
.cert-list li { padding: 14px 18px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; display: flex; gap: 12px; align-items: center; }
.cert-list li::before { content: "▹"; color: var(--cyan); }

/* Footer */
footer.site { background: var(--cortex-2); border-top: 1px solid var(--line); padding: 60px 0 28px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; }
.foot-grid h4 { color: #fff; margin-bottom: 16px; font-size: 1rem; }
.foot-links { list-style: none; display: grid; gap: 9px; }
.foot-links a { color: var(--muted); font-size: .9rem; }
.foot-links a:hover { color: var(--cyan); }
.foot-about p { color: var(--muted); font-size: .9rem; margin-top: 14px; }
.foot-contact p { color: var(--muted); font-size: .88rem; margin-bottom: 8px; }
.foot-contact b { color: #fff; }
.foot-bottom { border-top: 1px solid var(--line); margin-top: 44px; padding-top: 22px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--muted); font-size: .84rem; }

/* Cookie banner */
.cookie { position: fixed; bottom: 22px; left: 22px; right: 22px; max-width: 540px; margin: 0 auto; background: var(--cortex-2); border: 1px solid var(--cyan); border-radius: 16px; padding: 20px 22px; z-index: 200; display: none; box-shadow: 0 20px 50px rgba(0,0,0,.5); }
.cookie.show { display: block; animation: fadein .5s ease; }
.cookie p { font-size: .88rem; color: #c7d2e0; }
.cookie .row { display: flex; gap: 12px; margin-top: 14px; align-items: center; }
.cookie .btn { padding: 10px 22px; font-size: .88rem; }

/* scroll animations with JS fallback */
.slide-up, .fade-in { opacity: 1; transform: none; transition: opacity .55s ease, transform .55s ease; }
html.js .slide-up { opacity: 0; transform: translateY(28px); }
html.js .fade-in { opacity: 0; }
html.js .slide-up.visible, html.js .fade-in.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 980px) {
  .hero-grid, .split, .about-grid { grid-template-columns: 1fr; }
  .split.rev .txt { order: 0; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav-links { position: fixed; top: 74px; left: 0; right: 0; background: var(--cortex-2); flex-direction: column; padding: 24px; gap: 18px; border-bottom: 1px solid var(--line); transform: translateY(-140%); transition: transform .35s ease; }
  .nav-links.open { transform: translateY(0); }
  .burger { display: flex; }
  .nav-cta .btn { display: none; }
  .grid-3, .grid-2, .info-grid, .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .grid-4 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
}