:root{
  --bg:#f6f7fb; --panel:#fff; --ink:#151827; --muted:#5d6479; --line:#e3e6ef;
  --accent:#5b4cf0; --accent-2:#e94d9c; --accent-ink:#fff; --accent-soft:#eef0ff; --checker:#e9ebf2;
  --hero1:#4338ca; --hero2:#7c3aed; --hero3:#db2777;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0f1117;--panel:#171a23;--ink:#e9ebf3;--muted:#9aa0b4;--line:#2a2f3d;
  --accent:#8b85ff;--accent-ink:#0f1117;--accent-soft:#25264a;--checker:#1d2130;color-scheme:dark}
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.6 "Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--accent)}
img,svg{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding-inline:20px}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--panel) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;text-decoration:none;color:var(--ink);letter-spacing:-.01em}
.brand svg{width:32px;height:32px}
.nav nav{display:flex;gap:20px;margin-left:12px}
.nav nav a{color:var(--muted);text-decoration:none;font-weight:500;font-size:15px}
.nav nav a:hover,.nav nav a[aria-current=page]{color:var(--ink)}
.nav .cta{margin-left:auto;display:flex;gap:10px}
@media (max-width:820px){.nav nav{display:none}.nav .cta .btn.ghost{display:none}}

/* buttons */
.btn{font:inherit;font-weight:600;font-size:15px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:10px 20px;text-decoration:none;cursor:pointer;border:1.5px solid transparent;white-space:nowrap;transition:transform .15s,box-shadow .15s}
.btn svg{width:18px;height:18px}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 6px 18px -6px color-mix(in srgb,var(--accent) 70%,transparent)}
.btn.primary:hover{transform:translateY(-1px);box-shadow:0 10px 24px -8px color-mix(in srgb,var(--accent) 80%,transparent)}
.btn.ghost{border-color:var(--line);color:var(--ink);background:var(--panel)}
.btn.ghost:hover{border-color:var(--accent)}
.btn.white{background:#fff;color:#3b2fc9}
.btn.outline-white{border-color:rgba(255,255,255,.6);color:#fff}
.btn.outline-white:hover{background:rgba(255,255,255,.12)}
.btn.lg{padding:14px 28px;font-size:17px}

/* footer */
.foot{background:#0d0f1a;color:#b6bbcc;margin-top:0;padding-block:56px 28px;font-size:15px}
.foot .grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
@media (max-width:760px){.foot .grid{grid-template-columns:1fr 1fr}}
.foot h4{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:.06em;margin:0 0 14px}
.foot a{color:#b6bbcc;text-decoration:none;display:block;margin:7px 0}
.foot a:hover{color:#fff}
.foot .brand{color:#fff}
.foot p{margin:12px 0 0;max-width:320px}
.foot .bottom{border-top:1px solid #23263a;margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:14px}

kbd{font:12px ui-monospace,monospace;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:1px 5px;background:var(--bg);color:var(--ink)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:9px 16px;border-radius:9px;font-size:14px;opacity:0;transition:opacity .2s;pointer-events:none;z-index:50}
.toast.show{opacity:1}
.badge{font-size:11px;font-weight:800;letter-spacing:.04em;padding:2px 7px;border-radius:999px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff}
.page-head{text-align:center;padding-block:64px 24px}
.page-head h1{font-size:clamp(32px,4.4vw,50px);letter-spacing:-.03em;line-height:1.1;margin:12px 0}
.page-head p{color:var(--muted);font-size:18px;margin:0 auto;max-width:620px}
.eyebrow{color:var(--accent);font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:.08em}
.set-dialog{border:0;border-radius:20px;padding:30px;max-width:min(480px,calc(100vw - 32px));width:100%;background:var(--panel);color:var(--ink);box-shadow:0 40px 80px -20px rgba(0,0,0,.45)}
.set-dialog::backdrop{background:rgba(13,15,26,.55);backdrop-filter:blur(3px)}
.set-dialog h2{margin:0 0 8px;font-size:22px}
.set-dialog p{color:var(--muted);margin:0 0 16px}
.set-dialog .row{display:flex;gap:8px;flex-wrap:wrap}
.set-dialog .row input{flex:1;min-width:0;font:inherit;font-size:14px;padding:10px 12px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink)}
.set-dialog .sm{font-size:14px;margin:14px 0 0}
.set-dialog .x{position:absolute;top:10px;right:14px;border:0;background:none;font-size:26px;line-height:1;color:var(--muted);cursor:pointer}
/* account dashboard ("cabinet") */
.dash{display:grid;grid-template-columns:240px minmax(0,1fr);min-height:calc(100vh - 65px)}
.dside{background:var(--panel);border-right:1px solid var(--line);padding:20px 14px;display:flex;flex-direction:column;gap:6px;position:sticky;top:65px;height:calc(100vh - 65px)}
.dside nav{display:flex;flex-direction:column;gap:4px}
.dside nav a{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;color:var(--muted);text-decoration:none;font-weight:600;font-size:15px}
.dside nav a svg{width:19px;height:19px;flex:none}
.dside nav a:hover{background:var(--bg);color:var(--ink)}
.dside nav a[aria-current=page]{background:var(--accent-soft);color:var(--accent)}
.dplan{margin-top:auto;background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:14px;font-size:14px}
.dplan b{display:flex;align-items:center;gap:6px;font-size:15px}
.dplan small{display:block;color:var(--muted);margin:4px 0 10px;word-break:break-all}
.dplan .btn{width:100%;padding:8px 12px;font-size:14px}
.dout{font:inherit;font-size:14px;font-weight:600;border:0;background:none;color:var(--muted);padding:10px 12px;text-align:left;cursor:pointer;border-radius:10px}
.dout:hover{background:var(--bg);color:var(--ink)}
.dmain{min-width:0}
@media (max-width:860px){
  .dash{grid-template-columns:1fr}
  .dside{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line);padding:10px 12px;flex-direction:row;align-items:center;overflow-x:auto}
  .dside nav{flex-direction:row}
  .dside nav a{white-space:nowrap;padding:8px 10px;font-size:14px}
  .dplan{display:none}
  .dout{white-space:nowrap}
}
.lock{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:800;letter-spacing:.04em;color:var(--accent);background:var(--accent-soft);padding:2px 7px;border-radius:999px;text-decoration:none}