:root{--bg:#0c0d10;--card:#14161b;--line:#23262e;--tx:#e8e8ea;--mu:#9a9ca3;--gold:linear-gradient(180deg,#fbeb73 0%,#fac026 48%,#b17402 100%)}
*{box-sizing:border-box}body{margin:0;background:#07080a;color:var(--tx);font:16px/1.6 'Be Vietnam Pro',system-ui,sans-serif}
.w{max-width:880px;margin:0 auto;padding:0 16px}header{border-bottom:1px solid var(--line);padding:12px 0}header .w{display:flex;justify-content:space-between;align-items:center;gap:10px}header img{height:38px;width:auto;display:block}
a{color:#fac026}h1{font-size:28px;line-height:1.25;margin:24px 0 6px;background:var(--gold);-webkit-background-clip:text;background-clip:text;color:transparent}
h2{font-size:20px;margin:26px 0 8px}h3{margin:0 0 8px}p,li{color:#d4d5d8}.mu{color:var(--mu);font-size:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin-top:14px}
.gcard{border-color:#b17402}.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px}.stat b{display:block;font-size:20px;color:#fbeb73}.stat span{font-size:13px;color:var(--mu)}
.btn{display:inline-block;background:var(--gold);color:#111;font-weight:800;border:0;border-radius:10px;padding:12px 18px;cursor:pointer;text-decoration:none;font-size:15px;font-family:inherit}
.btn.ghost{background:transparent;color:#fac026;border:1px solid #fac026}.btn.sm{padding:7px 12px;font-size:13px}
label{display:block;font-size:14px;color:var(--mu);margin:10px 0 4px}input,select{width:100%;padding:11px 12px;border-radius:10px;border:1px solid var(--line);background:#07080a;color:var(--tx);font:inherit}
input:focus,select:focus{outline:2px solid #fac026}.row{display:flex;gap:10px;flex-wrap:wrap}.row>*{flex:1;min-width:150px}
.tabs{display:flex;gap:8px;margin-top:14px}.tabs button{flex:1}.tabs .on{background:var(--gold);color:#111}
.msg{margin-top:10px;font-size:14px}.err{color:#f87171}.ok{color:#34d399}.hide{display:none!important}
.tw{overflow-x:auto;margin-top:10px}table{border-collapse:collapse;width:100%;font-size:14px}th,td{padding:8px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}th{color:var(--mu);font-weight:600}
.link{display:flex;gap:8px;flex-wrap:wrap}.link input{flex:1;min-width:200px}
footer{border-top:1px solid var(--line);margin-top:40px;padding:24px 0 40px;color:var(--mu);font-size:14px}
.hero{text-align:center;padding:26px 0 8px}.hero h1{font-size:clamp(24px,6.4vw,38px)}.kick{color:#fac026;font-weight:700;font-size:13px;letter-spacing:.06em;text-transform:uppercase;margin:0}.lead{font-size:17px;max-width:620px;margin:10px auto 18px}
.btn.big{padding:15px 26px;font-size:17px;box-shadow:0 6px 24px rgba(250,192,38,.25)}
.bgrid{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.bgrid .card{margin:0}.bgrid p{margin:4px 0 0;font-size:15px}
.chips{display:flex;flex-wrap:wrap;gap:8px}.chips span{border:1px solid #b17402;border-radius:999px;padding:6px 12px;font-size:14px}
.steps li{margin:8px 0}
.calc input[type=range]{padding:0;border:0;background:none;accent-color:#fac026;height:28px}
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.plans button{background:#07080a;color:var(--tx);border:1px solid var(--line);border-radius:10px;padding:8px 4px;font:inherit;font-size:13px;cursor:pointer}.plans button.on{border-color:#fac026;color:#fbeb73;box-shadow:inset 0 0 0 1px #fac026}
.res{display:grid;gap:6px;margin-top:14px}.res div{display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);padding:6px 0;font-size:15px}.res span{color:var(--mu)}.res .hl b{color:#fbeb73;font-size:19px}
.chart{display:flex;align-items:flex-end;gap:4px;height:140px;margin-top:14px;padding-top:6px}.bar{flex:1;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center}.bar i{display:block;width:100%;background:var(--gold);border-radius:4px 4px 0 0;min-height:2px;transition:height .25s}.bar span{font-size:10px;color:var(--mu);margin-top:3px}
.disc{font-size:13px;color:#d4d5d8;background:rgba(250,192,38,.08);border-left:3px solid #fac026;padding:8px 10px;border-radius:6px;margin-top:12px}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-top:8px}summary{cursor:pointer;font-weight:600}details p{margin:8px 0 0}

/* v24 UX polish */
header a{display:inline-flex;align-items:center;min-height:44px}
input[type=range]{min-height:44px;width:100%;accent-color:#fac026;cursor:pointer}
summary{min-height:48px;display:flex;align-items:center;cursor:pointer}
button.btn,.btn{min-height:46px}
h3{line-height:1.35}
@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}