/* ahead film — European landing page. No external fonts, no trackers. */
:root{
  --ink:#0d141c; --ink-2:#16202b; --paper:#f6f4ef; --card:#ffffff;
  --text:#1b232d; --muted:#5a6573; --line:#e3dfd6; --line-dark:#2a3642;
  --accent:#c9772a; --accent-ink:#8a4d12;
  --uv:#7b61e0; --ir:#d2553c; --vis:#f0c35a; --glass:#8fc3d6;
  --radius:14px; --max:1160px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--text);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em;margin:0 0 .5em;font-weight:650}
h1{font-size:clamp(2.2rem,5.2vw,4rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
h3{font-size:1.15rem;letter-spacing:-.01em}
p{margin:0 0 1em}
.eyebrow{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--accent-ink);margin-bottom:14px;display:block}
.lead{font-size:1.15rem;color:var(--muted);max-width:640px}
section{padding:96px 0}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;z-index:99;background:#fff;padding:8px 12px;border-radius:8px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 22px;border-radius:999px;font-weight:600;text-decoration:none;border:1px solid transparent;cursor:pointer;font:600 1rem/1 var(--font);transition:transform .15s ease,background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#b3661f}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible{outline:3px solid var(--vis);outline-offset:2px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(13,20,28,.86);backdrop-filter:saturate(140%) blur(10px);-webkit-backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid rgba(255,255,255,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;color:#fff}
.brand{display:flex;align-items:baseline;gap:6px;text-decoration:none;color:#fff}
.brand b{font-size:1.45rem;font-weight:700;letter-spacing:-.04em}
.brand span{font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:#b9c3cd}
.nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0;font-size:.94rem}
.nav ul a{text-decoration:none;color:#d4dbe2}
.nav ul a:hover{color:#fff}
.nav .btn{padding:10px 18px;font-size:.92rem}
@media (max-width:860px){.nav ul{display:none}}

/* Hero */
.hero{background:radial-gradient(1200px 600px at 85% -10%,#223244 0%,transparent 60%),var(--ink);color:#fff;padding:72px 0 88px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.hero .eyebrow{color:var(--vis)}
.hero p.lead{color:#b9c3cd}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 18px}
.hero small{color:#8795a3;font-size:.82rem}
@media (max-width:920px){.hero-grid{grid-template-columns:1fr}.hero{padding:48px 0 64px}}

/* Diagram */
.diagram{margin:0;background:linear-gradient(180deg,#121b25,#0f1720);border:1px solid var(--line-dark);border-radius:20px;padding:18px}
.diagram text{font-family:var(--font)}
@media (prefers-reduced-motion:no-preference){
  .ray-move{stroke-dasharray:6 10;animation:flow 1.4s linear infinite}
  @keyframes flow{to{stroke-dashoffset:-32}}
}

/* Stats */
.stats{background:var(--ink-2);color:#fff;padding:0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-dark)}
.stat{padding:30px 24px;border-right:1px solid var(--line-dark)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:clamp(1.8rem,3.4vw,2.6rem);letter-spacing:-.03em;font-weight:650;font-variant-numeric:tabular-nums}
.stat span{color:#a8b3be;font-size:.9rem}
.stat .k-uv{color:#b3a3ff}.stat .k-ir{color:#ff9a84}.stat .k-vis{color:var(--vis)}
@media (max-width:760px){.stats-grid{grid-template-columns:1fr 1fr}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line-dark)}}

/* Cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
@media (max-width:900px){.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr;gap:32px}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.card p{color:var(--muted);margin:0}
.icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:#f3ebe0;color:var(--accent-ink);margin-bottom:18px}
.icon svg{width:24px;height:24px}

/* Applications */
.apps{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.app{border-top:2px solid var(--text);padding-top:18px}
.app ul{margin:12px 0 0;padding-left:18px;color:var(--muted)}
.app li{margin:4px 0}

/* Spec table */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:28px 0 18px}
.tab{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:999px;padding:9px 16px;font:600 .9rem var(--font);cursor:pointer}
.tab[aria-selected="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;min-width:720px;font-variant-numeric:tabular-nums}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:.95rem;white-space:nowrap}
th{font-size:.76rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600;background:#faf9f6}
tr:last-child td{border-bottom:0}
td.model{font-weight:650}
.pill{display:inline-block;font-size:.75rem;padding:3px 9px;border-radius:999px;background:#eef3f5;color:#335563;font-weight:600}
.pill.smoke{background:#ececec;color:#3d3d3d}.pill.mirror{background:#eceff7;color:#39456a}
.vlt{display:flex;align-items:center;gap:10px}
.vlt i{display:block;height:6px;width:90px;background:#eee9df;border-radius:6px;overflow:hidden;position:relative}
.vlt i::after{content:"";position:absolute;inset:0;width:var(--w);background:linear-gradient(90deg,#e9b440,var(--vis));border-radius:6px}
.zero{color:#2e7d4f;font-weight:650}
.footnote{font-size:.82rem;color:var(--muted);margin-top:14px;max-width:880px}

/* Proof */
.proof{background:var(--ink);color:#fff}
.proof .lead{color:#b9c3cd}
.proof .card{background:var(--ink-2);border-color:var(--line-dark)}
.proof .card p{color:#a8b3be}
.proof .icon{background:#23303d;color:var(--vis)}
.callout{margin-top:40px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;border:1px solid var(--line-dark);border-radius:var(--radius);padding:28px;background:linear-gradient(90deg,#1b2733,#16202b)}
.callout h3{margin:0 0 6px}
.callout p{margin:0;color:#b9c3cd}

/* Partner list */
.checks{list-style:none;padding:0;margin:24px 0 0}
.checks li{padding:14px 0 14px 36px;border-bottom:1px solid var(--line);position:relative}
.checks li::before{content:"";position:absolute;left:0;top:17px;width:20px;height:20px;border-radius:50%;background:var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-7' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/20px no-repeat}
.checks b{display:block}
.checks span{color:var(--muted);font-size:.95rem}

/* Form */
.form-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px;box-shadow:0 20px 50px -30px rgba(13,20,28,.35)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .full{grid-column:1/-1}
@media (max-width:600px){.form-grid{grid-template-columns:1fr}.form-card{padding:22px}}
label{display:block;font-size:.86rem;font-weight:600;margin-bottom:6px}
label .opt{font-weight:400;color:var(--muted)}
input,select,textarea{width:100%;padding:12px 14px;border:1px solid #d4cfc4;border-radius:10px;font:1rem var(--font);background:#fdfcfa;color:var(--text)}
textarea{min-height:110px;resize:vertical}
fieldset{border:0;padding:0;margin:0}
legend{font-size:.86rem;font-weight:600;margin-bottom:8px;padding:0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips label{margin:0;font-weight:500;font-size:.9rem;border:1px solid #d4cfc4;border-radius:999px;padding:8px 14px;cursor:pointer;background:#fdfcfa}
.chips input{position:absolute;opacity:0;width:1px;height:1px}
.chips input:checked+span{color:#fff}
.chips label:has(input:checked){background:var(--ink);border-color:var(--ink);color:#fff}
.chips label:has(input:focus-visible){outline:3px solid var(--vis);outline-offset:2px}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--muted);font-weight:400}
.consent input{width:18px;height:18px;margin-top:3px;flex:none}
.hp{position:absolute;left:-5000px}
.form-note{font-size:.85rem;color:var(--muted);margin-top:14px}
.contact-aside{margin-top:28px;padding-top:24px;border-top:1px solid var(--line);font-size:.95rem;color:var(--muted)}
.contact-aside b{color:var(--text)}

/* Footer */
footer{background:var(--ink);color:#8795a3;padding:40px 0;font-size:.88rem}
.foot{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
footer a{color:#c6cfd8;text-decoration:none;margin-left:20px}
footer a:first-child{margin-left:0}
footer a:hover{color:#fff}

/* Legal pages */
.legal{padding:64px 0 96px}
.legal .wrap{max-width:820px}
.legal h1{font-size:clamp(2rem,4vw,2.8rem)}
.legal h2{font-size:1.3rem;margin-top:2em}
.legal p,.legal li{color:#36404b}
.legal .note{background:#fff6e8;border:1px solid #f0d7b0;border-radius:10px;padding:14px 16px;font-size:.9rem}