/* Стиль форм — направление «Умный каталог», см. DESIGN.md */
:root{
  --bg:#ffffff; --panel:#f4f6f8; --card:#ffffff; --ink:#0d1b2a; --ink-soft:#5c6b7a; --line:#e3e8ed;
  --accent:#1f6feb; --accent-ink:#ffffff; --accent-soft:#eaf1fe;
  --ok:#12a150; --err:#e5484d; --lime:#c4ff3e;
  --radius:14px; --radius-sm:10px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--panel); color:var(--ink);
  font-family:Onest,system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:17px; line-height:1.55; -webkit-font-smoothing:antialiased;
  -webkit-text-size-adjust:100%;
}
.wrap{max-width:660px;margin:0 auto;padding:16px 16px 48px}
.top{display:flex;align-items:center;gap:12px;padding:14px 0 18px}
.top .brand{font-weight:700;font-size:15px;letter-spacing:-.01em}
.top .brand .lock{color:var(--ink);display:inline-flex;align-items:center;gap:.22em;font-size:24px;line-height:1;white-space:nowrap}
.top .brand .lock .mono{font-family:Unbounded,system-ui,sans-serif;font-weight:800;font-size:1em;letter-spacing:-.045em;line-height:.78}
.top .brand .lock .bar{width:2px;align-self:stretch;background:var(--line);margin:0 .06em}
.top .brand .lock .nm{display:flex;flex-direction:column;justify-content:center;font-weight:700;font-size:.2em;letter-spacing:.14em;line-height:1.42;text-transform:uppercase}
.top .brand > span{margin-top:8px}
.top .brand > span{display:block;font-weight:400;font-size:13px;color:var(--ink-soft)}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px 20px}
h1{font-family:Unbounded,system-ui,sans-serif;font-weight:700;font-size:26px;line-height:1.1;
  letter-spacing:-.03em;margin:0 0 10px}
.lead{color:var(--ink-soft);margin:0 0 4px;font-size:16px}
.progress{display:flex;gap:6px;margin:20px 0 22px}
.progress i{flex:1;height:4px;border-radius:2px;background:var(--line);transition:background .25s}
.progress i.done{background:var(--accent)}
.step{display:none}
.step.active{display:block;animation:in .22s ease}
@keyframes in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.q-title{font-size:20px;font-weight:600;letter-spacing:-.01em;margin:0 0 4px}
.q-sub{color:var(--ink-soft);font-size:14px;margin:0 0 14px}
.opts{display:grid;gap:10px;margin:14px 0 0}
.opt{position:relative;display:flex;align-items:center;gap:12px;padding:15px 16px;border:1.5px solid var(--line);
  border-radius:var(--radius-sm);cursor:pointer;background:#fff;transition:border-color .15s,background .15s;
  -webkit-tap-highlight-color:transparent;min-height:54px}
.opt:active{transform:scale(.995)}
.opt input{position:absolute;opacity:0;pointer-events:none}
.opt:focus-within{outline:2px solid var(--accent);outline-offset:2px}
.mark{flex:0 0 22px;height:22px;border:1.5px solid #c3ced9;border-radius:50%;display:grid;place-items:center;transition:.15s}
.opt.cb .mark{border-radius:6px}
.mark:after{content:"";width:10px;height:10px;border-radius:50%;background:var(--accent);transform:scale(0);transition:transform .15s}
.opt.cb .mark:after{border-radius:2px}
.opt input:checked~.mark{border-color:var(--accent);background:var(--accent-soft)}
.opt input:checked~.mark:after{transform:scale(1)}
.opt:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}
.opt span.t{font-size:16px;line-height:1.35}
.nav{display:flex;gap:10px;margin-top:22px}
.btn{appearance:none;border:0;border-radius:var(--radius-sm);font:inherit;font-weight:600;font-size:17px;padding:16px 20px;
  cursor:pointer;transition:filter .15s,opacity .15s;width:100%;min-height:54px}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-main{background:var(--accent);color:var(--accent-ink)}
.btn-main:hover{filter:brightness(1.06)}
.btn-main[disabled]{opacity:.55;cursor:default}
.btn-ghost{background:#fff;color:var(--ink-soft);border:1.5px solid var(--line);width:auto;padding:16px 18px;flex:0 0 auto}
label.fld{display:block;font-size:14px;color:var(--ink-soft);margin:0 0 8px}
input[type=tel],input[type=text]{width:100%;padding:16px;font:inherit;font-size:17px;border:1.5px solid var(--line);
  border-radius:var(--radius-sm);background:#fff;color:var(--ink);min-height:54px;font-variant-numeric:tabular-nums}
input[type=tel]:focus,input[type=text]:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.consent{display:flex;gap:10px;align-items:flex-start;margin:16px 0 0;font-size:13px;color:var(--ink-soft);line-height:1.45}
.consent input{margin:2px 0 0;width:18px;height:18px;flex:0 0 18px;accent-color:var(--accent)}
.consent a{color:var(--ink-soft)}
.err{color:var(--err);font-size:14px;margin:10px 0 0;display:none}
.err.on{display:block}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.done-box{text-align:center;padding:16px 4px}
.done-box .ic{width:64px;height:64px;border-radius:50%;background:#e4f6eb;display:grid;place-items:center;margin:0 auto 18px}
.done-box .ic svg{width:30px;height:30px;stroke:var(--ok);fill:none;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.done-box h2{font-family:Unbounded,system-ui,sans-serif;font-weight:700;font-size:22px;margin:0 0 8px;letter-spacing:-.03em;line-height:1.15}
.done-box p{color:var(--ink-soft);margin:0 0 20px}
.links{display:grid;gap:10px;margin-top:8px}
.links a{display:flex;align-items:center;justify-content:center;gap:8px;padding:14px;border-radius:var(--radius-sm);
  border:1.5px solid var(--line);text-decoration:none;color:var(--ink);font-weight:600;font-size:16px;background:#fff;min-height:54px}
.foot{text-align:center;color:var(--ink-soft);font-size:13px;margin-top:22px;line-height:1.6}
.foot a{color:var(--ink-soft)}
@media (max-width:420px){
  .wrap{padding:12px 12px 40px}
  .card{padding:20px 16px;border-radius:16px}
  h1{font-size:21px;line-height:1.15}
  .q-title{font-size:18px}
  .opt{padding:14px}
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0d1117;--panel:#0d1117;--card:#151b24;--ink:#eef2f8;--ink-soft:#9aa6b8;--line:#28313f;--accent-soft:#16294a}
  .opt,input[type=tel],input[type=text],.links a,.btn-ghost{background:#151b24}
  .mark{border-color:#3a4557}
  .done-box .ic{background:#12281f}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}