:root { --paper:#EEF0F7; --surface:#FFFFFF; --ink:#1F1D47; --on-ink:#FFFFFF; --muted:#5F5E80; --line:#D9DBEA; --field:#8688A8; --accent:#0078BF; --bad:#B4233B; --ok:#00784A; --r:16px; }
@media (prefers-color-scheme: dark) { :root { --paper:#16152F; --surface:#222146; --ink:#F1EFFA; --on-ink:#1F1D47; --muted:#A9A6CF; --line:#3D3A7C; --field:#716EA8; --accent:#5EC8E5; --bad:#FF8E9B; --ok:#5BE38F; } .ink { fill:#F1EFFA; } }
*,*::before,*::after { box-sizing:border-box; }
html { -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body { margin:0; background:var(--paper); color:var(--ink); font-family:'Jost','Futura','Century Gothic',system-ui,sans-serif; font-size:1.125rem; line-height:1.5; overflow-wrap:break-word; }
a { color:inherit; }
h1,h2,h3 { margin:0; font-weight:600; letter-spacing:-.02em; line-height:1.1; }
h1 { font-size:clamp(2.1rem,7vw,3.6rem); }
h2 { font-size:clamp(1.6rem,4.5vw,2.2rem); margin-bottom:20px; }
h3 { font-size:1.15rem; letter-spacing:0; }
p { margin:0; }
.top { display:flex; align-items:center; justify-content:space-between; gap:12px; max-width:1040px; margin:0 auto; padding:14px 20px; }
.brand { display:flex; align-items:center; gap:10px; font-weight:600; text-decoration:none; }
.top nav { display:flex; align-items:center; gap:18px; font-weight:500; }
.top nav a:not(.btn) { text-decoration:none; color:var(--muted); }
@media (max-width:720px) { .top nav a:not(.btn) { display:none; } }
main { max-width:1040px; margin:0 auto; padding:0 20px 40px; }
.btn { display:inline-flex; align-items:center; justify-content:center; min-height:48px; padding:10px 22px; border-radius:var(--r); border:2px solid var(--line); background:var(--surface); color:var(--ink); font:inherit; font-weight:600; text-decoration:none; cursor:pointer; }
.btn.primary { background:var(--ink); color:var(--on-ink); border-color:var(--ink); }
.btn.ghost { min-height:44px; padding:6px 16px; }
.btn:focus-visible, input:focus-visible, summary:focus-visible { outline:3px solid var(--ink); outline-offset:3px; }
.hero { display:grid; grid-template-columns:1.4fr 1fr; gap:32px; align-items:center; padding:36px 0 24px; }
.hero-art { width:100%; max-width:300px; justify-self:center; }
.lead { font-size:1.25rem; color:var(--muted); margin:18px 0 26px; max-width:34ch; }
.cta { display:flex; flex-wrap:wrap; gap:12px; }
.fine { color:var(--muted); font-size:.9rem; margin-top:14px; }
@media (max-width:760px) { .hero { grid-template-columns:1fr; } .hero-art { max-width:140px; order:-1; justify-self:start; } }
.block { padding:36px 0; }
.steps { list-style:none; margin:0; padding:0; display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.steps li { background:var(--surface); border-radius:var(--r); padding:20px; display:grid; gap:8px; align-content:start; }
.steps .n { width:36px; height:36px; border-radius:50%; background:var(--ink); color:var(--on-ink); display:grid; place-items:center; font-weight:700; }
.steps p, .card li, .plan li, details p { color:var(--muted); }
@media (max-width:760px) { .steps { grid-template-columns:1fr; } }
.two { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.card { background:var(--surface); border-radius:var(--r); padding:22px; }
.card h2 { font-size:1.4rem; margin-bottom:12px; }
.card ul, .plan ul { margin:0; padding-left:1.1em; display:grid; gap:8px; }
@media (max-width:760px) { .two { grid-template-columns:1fr; } }
.demo { text-align:left; display:grid; gap:14px; justify-items:start; }
.demo p { color:var(--muted); max-width:46ch; }
.plans { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.plan { background:var(--surface); border-radius:var(--r); padding:22px; border:2px solid transparent; display:grid; gap:10px; align-content:start; }
.plan.pro { border-color:var(--ink); }
.plan .big { font-size:2.2rem; font-weight:700; letter-spacing:-.03em; }
.plan .big span { font-size:1rem; font-weight:500; color:var(--muted); letter-spacing:0; }
@media (max-width:760px) { .plans { grid-template-columns:1fr; } }
details { background:var(--surface); border-radius:var(--r); margin-bottom:10px; }
summary { cursor:pointer; padding:16px 20px; font-weight:600; min-height:56px; list-style:none; display:flex; align-items:center; justify-content:space-between; gap:12px; }
summary::-webkit-details-marker { display:none; }
summary::after { content:'+'; font-size:1.5rem; color:var(--muted); }
details[open] summary::after { content:'−'; }
details p { padding:0 20px 18px; }
.access form { display:grid; gap:14px; max-width:460px; margin-top:18px; }
.access label { display:grid; gap:6px; font-weight:500; font-size:.95rem; color:var(--muted); }
.access input:not([type=checkbox], .trap) { font:inherit; color:var(--ink); background:var(--surface); border:2px solid var(--field); border-radius:var(--r); padding:11px 14px; min-height:52px; width:100%; }
.access .check { display:grid; grid-template-columns:24px 1fr; gap:12px; align-items:start; font-size:.9rem; font-weight:400; }
.access input[type=checkbox] { width:24px; height:24px; margin:2px 0 0; accent-color:var(--ink); }
.trap { position:absolute; left:-9999px; width:1px; height:1px; border:0; padding:0; opacity:0; }
.error { color:var(--bad); font-weight:500; min-height:1.4em; }
.ok { color:var(--ok); font-weight:600; font-size:1.2rem; margin-top:18px; }
footer { max-width:1040px; margin:0 auto; padding:24px 20px 60px; color:var(--muted); font-size:.9rem; display:flex; flex-wrap:wrap; gap:8px 24px; justify-content:space-between; border-top:1px solid var(--line); }
@media (prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } }