/* ============================================================
   AIKraft — Utilities hub + universal calculator template.
   ============================================================ */
.ut-top { padding:18px 0 0; }
.crumbs { display:flex; align-items:center; gap:8px; font-size:12px; color:var(--text-3); font-family:var(--font-mono); flex-wrap:wrap; }
.crumbs a:hover { color:var(--text-2); } .crumbs .sep { opacity:.5; } .crumbs .cur { color:var(--text-2); }

.ut-hero { padding:22px 0 20px; }
.ut-hero h1 { font-size:31px; font-weight:600; letter-spacing:-.025em; margin:0; }
.ut-hero .lede { font-size:15px; color:var(--text-2); margin:8px 0 0; max-width:62ch; line-height:1.5; }

/* hub cards */
.ut-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:16px; padding-bottom:56px; }
.utcard { display:flex; flex-direction:column; gap:13px; background:var(--bg-elev); border:1px solid var(--border); border-radius:16px; padding:20px; cursor:pointer; transition:border .15s, transform .15s, box-shadow .15s; }
.utcard:hover { border-color:var(--border-strong); transform:translateY(-2px); box-shadow:var(--shadow-md); }
.utcard-ico { width:44px; height:44px; border-radius:12px; background:var(--accent-soft); color:var(--accent); display:inline-flex; align-items:center; justify-content:center; }
.utcard h3 { font-size:17px; font-weight:600; margin:0; letter-spacing:-.01em; }
.utcard p { font-size:13.5px; color:var(--text-2); line-height:1.5; margin:0; flex:1; }
.utcard .open { display:inline-flex; align-items:center; gap:6px; font-size:13px; font-weight:500; color:var(--accent); }
.utcard:hover .open { gap:9px; }
.utcard .slug { font-size:11px; color:var(--text-mute); font-family:var(--font-mono); }

/* ===== calculator template ===== */
.calc-layout { display:grid; grid-template-columns:1fr 1fr; gap:24px; align-items:start; padding-bottom:40px; }
.panel { background:var(--bg-elev); border:1px solid var(--border); border-radius:16px; padding:22px; }
.panel-h { font-size:12px; font-weight:600; text-transform:uppercase; letter-spacing:.06em; color:var(--text-3); margin:0 0 18px; }
.result-panel { position:sticky; top:76px; }

/* input fields */
.field { margin-bottom:18px; }
.field:last-child { margin-bottom:0; }
.field label { display:block; font-size:13px; font-weight:500; color:var(--text); margin-bottom:7px; }
.field label .hint { color:var(--text-3); font-weight:400; font-family:var(--font-mono); font-size:11px; margin-left:6px; }
.field input[type=number], .field input[type=text], .field select, .field textarea {
  width:100%; height:42px; padding:0 13px; border-radius:10px; background:var(--bg); border:1px solid var(--border);
  font-size:14px; color:var(--text); font-family:inherit; outline:none; }
.field textarea { height:auto; min-height:120px; padding:11px 13px; line-height:1.5; resize:vertical; font-family:inherit; }
.field select { appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 12px center; padding-right:36px; cursor:pointer; }
.field input:focus, .field select:focus, .field textarea:focus { border-color:var(--accent-border); box-shadow:0 0 0 3px var(--accent-soft); }
.field.invalid input, .field.invalid select { border-color:var(--red); }
.field .err { display:none; font-size:11.5px; color:var(--red); margin-top:5px; }
.field.invalid .err { display:block; }

/* segmented (for quant / tokenizer small sets) */
.seg { display:flex; gap:5px; background:var(--bg); border:1px solid var(--border); border-radius:10px; padding:4px; }
.seg button { flex:1; height:34px; border:none; background:transparent; border-radius:7px; font-size:12.5px; font-weight:500; color:var(--text-2); cursor:pointer; font-family:inherit; }
.seg button.active { background:var(--accent); color:#fff; }

/* slider */
.range-row { display:flex; align-items:center; gap:12px; }
.range-row input[type=range] { flex:1; accent-color:var(--accent); height:42px; }
.range-row .rv { font-family:var(--font-mono); font-size:14px; font-weight:600; min-width:48px; text-align:right; }

/* result */
.result-big { display:flex; align-items:baseline; gap:10px; margin-bottom:6px; }
.result-big .v { font-family:var(--font-mono); font-size:46px; font-weight:600; letter-spacing:-.03em; line-height:1; color:var(--accent); }
.result-big .u { font-size:15px; color:var(--text-3); font-family:var(--font-mono); }
.result-sub { font-size:13px; color:var(--text-2); margin:0 0 18px; }
.breakdown { border-top:1px solid var(--border); }
.bd-row { display:flex; align-items:center; justify-content:space-between; padding:11px 0; border-bottom:1px solid var(--border); font-size:13px; }
.bd-row .k { color:var(--text-2); }
.bd-row .v { font-family:var(--font-mono); font-weight:500; }
.bd-row.total .k { font-weight:600; color:var(--text); } .bd-row.total .v { color:var(--accent); font-weight:600; }

/* provider compare table */
.cmp { margin-top:18px; border:1px solid var(--border); border-radius:10px; overflow:hidden; }
.cmp-row { display:grid; grid-template-columns:1fr auto auto; gap:12px; align-items:center; padding:11px 14px; border-bottom:1px solid var(--border); font-size:13px; }
.cmp-row:last-child { border-bottom:none; }
.cmp-row.head { background:var(--bg-elev-2); font-size:10.5px; text-transform:uppercase; letter-spacing:.05em; color:var(--text-3); font-weight:600; }
.cmp-row .prov { font-weight:500; display:flex; align-items:center; gap:8px; }
.cmp-row .prov .tag { font-size:9.5px; padding:1px 6px; border-radius:4px; background:var(--green-soft); color:var(--green); font-weight:600; text-transform:uppercase; }
.cmp-row .rub { font-family:var(--font-mono); font-weight:600; }
.cmp-row .usd { font-family:var(--font-mono); color:var(--text-3); font-size:12px; }
.cmp-row.best { background:var(--accent-soft); }

/* methodology + related */
.calc-extra { padding:30px 0 56px; border-top:1px solid var(--border); }
.method-box { background:var(--bg-elev); border:1px solid var(--border); border-radius:14px; padding:20px 22px; margin-bottom:24px; }
.method-box h3 { font-size:14px; font-weight:600; margin:0 0 10px; }
.method-box p { font-size:13.5px; color:var(--text-2); line-height:1.6; margin:0 0 10px; }
.method-box code { font-family:var(--font-mono); font-size:12.5px; background:var(--bg-elev-2); padding:2px 7px; border-radius:5px; color:var(--text); }
.method-box .src { font-size:12px; color:var(--text-3); font-family:var(--font-mono); margin-top:12px; padding-top:12px; border-top:1px solid var(--border); }
.related h3 { font-size:12px; font-weight:600; text-transform:uppercase; letter-spacing:.06em; color:var(--text-3); margin:0 0 12px; }
.related-cards { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; }
.rel-card { display:flex; align-items:center; gap:11px; padding:13px 15px; border-radius:11px; background:var(--bg-elev); border:1px solid var(--border); cursor:pointer; }
.rel-card:hover { border-color:var(--border-strong); }
.rel-card .logo { width:32px; height:32px; border-radius:9px; color:#fff; font-family:var(--font-mono); font-weight:700; font-size:11px; display:inline-flex; align-items:center; justify-content:center; flex-shrink:0; }
.rel-card .nm { font-size:13.5px; font-weight:600; } .rel-card .dn { font-size:11.5px; color:var(--text-3); font-family:var(--font-mono); }

/* mobile floating result */
.calc-fab { display:none; }
@media (max-width:880px){
  .calc-layout { grid-template-columns:1fr; }
  .result-panel { position:static; }
  .related-cards { grid-template-columns:1fr; }
}
@media (max-width:680px){
  .ut-grid { grid-template-columns:1fr; }
  .ut-hero h1 { font-size:25px; }
}