/* ai2mock landing — one accent, neutral surfaces, 1px borders, light + dark, mobile-first */
:root{--bg:#fff;--surface:#f8fafc;--surface-2:#f1f5f9;--border:#e2e8f0;--text:#0f172a;--muted:#5b6b82;--accent:#4f46e5;
--accent-hover:#4338ca;--accent-text:#4338ca;--accent-soft:#eef2ff;--ring:#6366f1;--ok:#15803d;--ok-soft:#f0fdf4;--bad:#b91c1c;
--deep:#1e1b4b;--shadow:0 20px 48px rgba(15,23,42,.12)}
@media (prefers-color-scheme:dark){:root{--bg:#0b0d12;--surface:#11141b;--surface-2:#171b24;--border:#262b38;--text:#e8ebf2;
--muted:#9aa5b8;--accent-text:#a5b4fc;--accent-soft:#1a1c3a;--ok:#4ade80;--ok-soft:#10231a;--bad:#f87171;--deep:#14123a;
--shadow:0 20px 48px rgba(0,0,0,.55)}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/26px system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
-webkit-font-smoothing:antialiased}
a{color:var(--accent-text);text-underline-offset:3px}
:focus-visible{outline:2px solid var(--ring);outline-offset:3px;border-radius:6px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}@media(min-width:900px){.wrap{padding:0 32px}}
section[id]{scroll-margin-top:72px}
.sr{position:absolute;left:-9999px}
/* header */
header.top{position:sticky;top:0;z-index:10;background:var(--bg);border-bottom:1px solid var(--border)}
.bar{height:64px;display:flex;align-items:center;gap:8px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--text);text-decoration:none;margin-right:auto}
.logo{width:30px;height:30px;border-radius:8px;background:var(--accent);display:grid;place-items:center}
.nav a.l{display:none;color:var(--muted);text-decoration:none;padding:8px 12px;border-radius:6px;font-size:15px}
.nav a.l:hover{color:var(--text);background:var(--surface)}
@media(min-width:760px){.nav a.l{display:inline-block}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:10px;font-weight:600;
font-size:16px;text-decoration:none;border:1px solid var(--border);color:var(--text);background:var(--bg);cursor:pointer}
.btn:hover{background:var(--surface)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-hover)}.btn.sm{height:40px;padding:0 16px;font-size:15px}
.btn.light{background:#fff;color:var(--deep);border-color:#fff}.btn.light:hover{background:#e0e7ff}
/* hero */
.hero{padding:48px 0 72px;display:grid;gap:56px}
@media(min-width:960px){.hero{grid-template-columns:1fr 1.1fr;align-items:center;padding:88px 0 104px;gap:48px}}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--accent-text);background:var(--accent-soft);
border-radius:999px;padding:6px 14px;margin-bottom:22px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok)}
h1{font-size:clamp(36px,6.4vw,62px);line-height:1.04;letter-spacing:-.03em;margin:0 0 20px;font-weight:800}
h1 em{font-style:normal;color:var(--accent-text)}
.lead{font-size:19px;line-height:30px;color:var(--muted);max-width:520px;margin:0 0 32px}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.trust{display:flex;flex-wrap:wrap;gap:10px 22px;margin:28px 0 0;padding:0;list-style:none;color:var(--muted);font-size:15px}
.trust li{display:flex;align-items:center;gap:8px}.trust svg{color:var(--ok);flex:none}
/* app mock */
.mock{background:var(--bg);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);overflow:hidden;font-size:14px;line-height:20px}
.mock-h{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border);background:var(--surface)}
.mock-h strong{font-size:14px}.tag{font-size:12px;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:2px 10px;background:var(--bg)}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--border)}
.kpi{padding:14px 18px}.kpi+.kpi{border-left:1px solid var(--border)}
.kpi span{display:block;font-size:12px;color:var(--muted)}.kpi b{font-size:20px;line-height:28px;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.pos{color:var(--ok)}.neg{color:var(--bad)}
.chart{padding:14px 18px 6px;border-bottom:1px solid var(--border)}
.chart .lab{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:6px}
.chart svg{display:block;width:100%;height:auto}
table{width:100%;border-collapse:collapse}
th{font-weight:500;color:var(--muted);font-size:12px;text-align:left;padding:10px 18px}
td{padding:10px 18px;border-top:1px solid var(--border)}.r{text-align:right;font-variant-numeric:tabular-nums}
.badge{display:inline-block;font-size:12px;font-weight:600;padding:1px 9px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border)}
.badge.ok{background:var(--ok-soft);color:var(--ok);border-color:transparent}
.badge.b{background:var(--accent-soft);color:var(--accent-text);border-color:transparent}
.mock-f{padding:10px 18px;font-size:12px;color:var(--muted);border-top:1px solid var(--border);background:var(--surface)}
/* safeguards strip */
.strip{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--surface)}
.strip ul{list-style:none;margin:0;padding:28px 0;display:grid;gap:20px;grid-template-columns:1fr 1fr}
@media(min-width:860px){.strip ul{grid-template-columns:repeat(4,1fr)}}
.strip b{display:block;font-size:17px;line-height:24px}.strip span{font-size:14px;color:var(--muted);line-height:20px}
/* sections */
section.s{padding:72px 0}@media(min-width:900px){section.s{padding:104px 0}}
.kicker{font-size:14px;font-weight:600;color:var(--accent-text);margin:0 0 10px}
h2{font-size:clamp(28px,4.2vw,40px);line-height:1.12;letter-spacing:-.02em;margin:0 0 14px;font-weight:800}
.sub{color:var(--muted);font-size:18px;line-height:28px;margin:0;max-width:560px}
.feat{display:grid;gap:36px;align-items:center;margin-top:0}
@media(min-width:900px){.feat{grid-template-columns:1fr 1fr;gap:72px}.feat.rev .vis{order:-1}}
.feat+.feat{margin-top:88px}
.feat ul{margin:22px 0 0;padding:0;list-style:none;display:grid;gap:12px}
.feat li{display:flex;gap:10px;align-items:flex-start;color:var(--muted)}.feat li svg{flex:none;margin-top:4px;color:var(--accent-text)}
.vis .mock{box-shadow:none}
/* order ticket */
.seg{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--border);border-radius:10px;overflow:hidden;margin:16px 18px 0}
.seg span{padding:10px;text-align:center;font-weight:600;color:var(--muted);background:var(--surface)}
.seg span.on{background:var(--ok);color:#fff}
.fld{margin:14px 18px 0}.fld label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.fld div{border:1px solid var(--border);border-radius:8px;padding:10px 12px;font-variant-numeric:tabular-nums;background:var(--bg)}
.ticket-btn{margin:18px;padding:12px;border-radius:10px;background:var(--accent);color:#fff;text-align:center;font-weight:600}
/* permissions */
.perm{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-top:1px solid var(--border)}
.perm:first-of-type{border-top:0}.perm small{display:block;color:var(--muted);font-size:12px}
.tog{width:40px;height:24px;border-radius:999px;background:var(--border);position:relative;flex:none}
.tog::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff}
.tog.on{background:var(--accent)}.tog.on::after{left:19px}
/* audit */
.log{display:grid}.log div{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;padding:12px 18px;border-top:1px solid var(--border)}
.log div:first-child{border-top:0}.log time{color:var(--muted);font-variant-numeric:tabular-nums;font-size:12px;grid-row:span 2;padding-top:2px}
.log small{color:var(--muted)}
/* steps */
.steps{display:grid;gap:16px;margin-top:40px}@media(min-width:800px){.steps{grid-template-columns:repeat(3,1fr)}}
.step{border:1px solid var(--border);border-radius:14px;padding:24px;background:var(--bg)}
.num{width:36px;height:36px;border-radius:50%;background:var(--accent-soft);color:var(--accent-text);display:grid;place-items:center;font-weight:700;margin-bottom:16px;font-variant-numeric:tabular-nums}
.step h3{margin:0 0 6px;font-size:18px;line-height:26px}.step p{margin:0;color:var(--muted);font-size:15px;line-height:24px}
/* faq */
.faq{max-width:760px;margin:40px auto 0}
details{border-top:1px solid var(--border)}details:last-child{border-bottom:1px solid var(--border)}
summary{list-style:none;cursor:pointer;padding:20px 0;font-weight:600;font-size:17px;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:22px;line-height:24px;color:var(--muted);font-weight:400}
details[open] summary::after{content:"−"}
details p{margin:0 0 20px;color:var(--muted);max-width:640px}
/* final cta */
.final{background:var(--deep);color:#fff;border-radius:20px;padding:56px 24px;text-align:center}
@media(min-width:900px){.final{padding:80px 48px}}
.final h2{color:#fff;margin-bottom:12px}.final p{color:#c7d2fe;font-size:18px;margin:0 auto 28px;max-width:520px}
footer{border-top:1px solid var(--border);margin-top:88px;padding:28px 0 40px;color:var(--muted);font-size:14px;line-height:22px}
.foot{display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between}.foot p{margin:0;max-width:560px}
@media (prefers-reduced-motion:no-preference){.btn{transition:background .12s,border-color .12s}}
@media (max-width:520px){.kpi{padding:12px}.kpi b{font-size:17px}th,td{padding:9px 12px}.mock-h,.chart{padding-left:12px;padding-right:12px}}