:root{
  --ink:#0b1f3a;--muted:#64748b;--line:#dbe7f7;--blue:#1269ef;--blue2:#004ecb;
  --sky:#eaf4ff;--paper:#fff;--bg:#f4f8fd;--yellow:#ffd43b;--green:#0a9b68;
  --danger:#dc3f52;--shadow:0 18px 55px rgba(15,55,110,.11);--radius:24px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,Manrope,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}
button,input,select,textarea{font:inherit}
button,a{touch-action:manipulation}
a{color:inherit}
.tool-shell{width:min(1480px,calc(100% - 40px));margin:auto}
.tool-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.tool-header-row{height:76px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:900;letter-spacing:-.04em;font-size:23px}
.brand-mark{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;color:#fff;background:linear-gradient(145deg,#2680ff,#0752d2);box-shadow:0 8px 22px rgba(18,105,239,.25)}
.tool-nav{margin-left:auto;display:flex;align-items:center;gap:24px}
.tool-nav a{text-decoration:none;color:#4b5f7b;font-weight:750;font-size:14px}
.tool-nav a:hover{color:var(--blue)}
.header-cta,.button-primary,.button-secondary,.button-ghost{border:0;border-radius:13px;min-height:46px;padding:0 20px;display:inline-flex;align-items:center;justify-content:center;gap:9px;text-decoration:none;font-weight:800;cursor:pointer}
.header-cta,.button-primary{background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;box-shadow:0 10px 25px rgba(18,105,239,.24)}
.button-primary:hover,.header-cta:hover{transform:translateY(-1px);box-shadow:0 14px 32px rgba(18,105,239,.3)}
.button-secondary{background:#fff;color:var(--blue2);border:1px solid #bcd3f4}
.button-ghost{background:#eef5ff;color:#31567f}
.tool-breadcrumbs{display:flex;gap:8px;align-items:center;padding-top:24px;color:#71839a;font-size:13px}
.tool-breadcrumbs a{text-decoration:none}
.tool-breadcrumbs a:hover{color:var(--blue)}
.tool-hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(460px,.95fr);gap:48px;align-items:center;padding:48px 0 38px}
.tool-kicker{display:inline-flex;align-items:center;gap:8px;border-radius:999px;background:#e8f2ff;color:var(--blue2);padding:8px 13px;font-weight:850;font-size:12px;letter-spacing:.08em;text-transform:uppercase}
.tool-kicker i{width:8px;height:8px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 6px rgba(18,105,239,.1)}
.tool-hero h1{font-size:clamp(38px,5vw,70px);line-height:.98;letter-spacing:-.055em;margin:22px 0 20px;max-width:900px}
.tool-lead{font-size:19px;color:#58708e;max-width:740px;margin:0}
.tool-benefits{display:flex;flex-wrap:wrap;gap:9px;margin:24px 0 0;padding:0;list-style:none}
.tool-benefits li{background:#fff;border:1px solid var(--line);padding:8px 11px;border-radius:10px;color:#41607f;font-weight:700;font-size:13px}
.tool-benefits li::before{content:"✓";color:var(--green);margin-right:6px}
.tool-hero-art{position:relative;min-height:400px;border-radius:32px;overflow:hidden;background:#dbeaff;box-shadow:var(--shadow)}
.tool-hero-art img{width:100%;height:100%;min-height:400px;object-fit:cover;display:block}
.art-metric{position:absolute;right:22px;bottom:22px;width:min(285px,72%);padding:16px 18px;background:rgba(255,255,255,.91);border:1px solid rgba(255,255,255,.7);backdrop-filter:blur(15px);border-radius:18px;box-shadow:0 15px 35px rgba(5,30,70,.2)}
.art-metric small{display:block;color:#6b7e98;font-weight:750}
.art-metric strong{display:block;color:var(--blue2);font-size:24px;margin-top:3px}
.calculator{display:grid;grid-template-columns:minmax(330px,.78fr) minmax(480px,1.22fr);gap:18px;align-items:start;margin:24px auto 70px}
.calc-panel,.result-panel,.content-card,.plan-cta,.catalog-card,.catalog-filter{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 9px 32px rgba(20,64,120,.06)}
.calc-panel{position:sticky;top:96px;padding:26px}
.panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:24px}
.panel-head h2,.result-head h2{margin:0;font-size:25px;letter-spacing:-.035em}
.panel-head p,.result-head p{margin:5px 0 0;color:var(--muted);font-size:14px}
.step-badge{display:grid;place-items:center;flex:0 0 38px;width:38px;height:38px;border-radius:12px;background:var(--blue);color:#fff;font-weight:900}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field.wide{grid-column:1/-1}
.field label{font-weight:780;font-size:13px;color:#294562}
.input-wrap{position:relative}
.input-wrap input,.field select{width:100%;height:50px;border:1px solid #cddcef;border-radius:12px;background:#fbfdff;color:var(--ink);padding:0 44px 0 13px;font-weight:750;outline:0}
.input-wrap input:focus,.field select:focus,.notes textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(18,105,239,.1)}
.input-wrap span{position:absolute;right:13px;top:50%;transform:translateY(-50%);color:#7488a3;font-size:12px;font-weight:750;pointer-events:none}
.range-row{display:grid;grid-template-columns:1fr 76px;align-items:center;gap:10px}
.range-row input[type=range]{width:100%;accent-color:var(--blue)}
.range-value{background:#eef5ff;border-radius:10px;padding:7px 8px;text-align:center;font-size:13px;font-weight:800;color:var(--blue2)}
.scenario{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin:22px 0}
.scenario button{height:42px;border:1px solid var(--line);background:#f7faff;border-radius:10px;color:#57708f;font-size:12px;font-weight:850;cursor:pointer}
.scenario button.active{background:var(--blue);border-color:var(--blue);color:#fff}
.calc-actions{display:grid;grid-template-columns:1fr auto;gap:9px}
.calc-actions .button-primary{height:51px}
.icon-button{width:51px;height:51px;border:1px solid var(--line);border-radius:13px;background:#fff;color:#58708e;cursor:pointer;font-size:20px}
.result-panel{overflow:hidden}
.result-head{padding:26px 28px 18px;display:flex;justify-content:space-between;gap:18px;align-items:flex-start}
.live-pill{display:flex;align-items:center;gap:7px;background:#e9fbf3;color:#087b55;padding:7px 10px;border-radius:999px;font-size:12px;font-weight:850;white-space:nowrap}
.live-pill::before{content:"";width:7px;height:7px;border-radius:50%;background:#0bb77c;box-shadow:0 0 0 5px rgba(11,183,124,.12)}
.result-summary{display:grid;grid-template-columns:1.25fr repeat(3,1fr);gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.summary-cell{background:#f9fbfe;padding:21px}
.summary-cell small{display:block;color:#6b7e98;font-size:12px;font-weight:700}
.summary-cell strong{display:block;margin-top:5px;font-size:19px;letter-spacing:-.025em}
.summary-cell.primary{background:linear-gradient(145deg,#0b5edf,#0048ba);color:#fff}
.summary-cell.primary small{color:#cfe2ff}
.summary-cell.primary strong{font-size:31px}
.result-body{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:24px;padding:26px}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:20px}
.metric{border:1px solid var(--line);border-radius:14px;padding:13px;background:#fbfdff}
.metric span{display:block;color:#7588a0;font-size:11px;font-weight:750}
.metric strong{display:block;margin-top:4px;font-size:16px}
.breakdown h3,.notes h3,.history h3,.how-card h2,.related h2{margin:0 0 13px;font-size:17px}
.result-table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px}
.result-table{width:100%;border-collapse:collapse;min-width:560px}
.result-table th,.result-table td{text-align:left;padding:12px 13px;border-bottom:1px solid var(--line);font-size:12px}
.result-table th{background:#f1f6fc;color:#5a708b;font-weight:850}
.result-table td:last-child,.result-table th:last-child{text-align:right}
.result-table tr:last-child td{border:0}
.chart-card{border:1px solid var(--line);border-radius:18px;padding:17px;background:#fbfdff}
.donut{width:170px;height:170px;margin:0 auto 16px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--blue) 0 45%,var(--yellow) 45% 72%,#66c7ad 72% 92%,#d9e4f2 92%)}
.donut::after{content:"";width:102px;height:102px;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 1px var(--line)}
.legend{display:grid;gap:8px}
.legend div{display:grid;grid-template-columns:9px 1fr auto;align-items:center;gap:7px;font-size:11px;color:#5c718c}
.legend i{width:9px;height:9px;border-radius:3px}
.legend b{color:var(--ink)}
.result-toolbar{display:flex;flex-wrap:wrap;gap:8px;padding:0 26px 26px}
.result-toolbar button{border:1px solid var(--line);background:#fff;color:#3e5e80;border-radius:10px;padding:9px 12px;font-size:12px;font-weight:800;cursor:pointer}
.result-toolbar button:hover{border-color:#8bb6ef;color:var(--blue)}
.notes,.history{margin-top:18px;border-top:1px solid var(--line);padding-top:18px}
.notes textarea{width:100%;min-height:86px;resize:vertical;border:1px solid var(--line);border-radius:12px;padding:12px;outline:0}
.history-list{display:grid;gap:8px}
.history-item{display:flex;justify-content:space-between;gap:12px;background:#f6f9fd;border-radius:10px;padding:10px 12px;font-size:12px}
.history-item button{border:0;background:none;color:var(--blue);font-weight:800;cursor:pointer}
.warning{margin-top:12px;background:#fff9e7;border:1px solid #f4df9d;border-radius:12px;padding:11px 13px;color:#745b0a;font-size:12px}
.under-calculator{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;margin-bottom:18px}
.content-card{padding:30px}
.content-card h2{margin:0 0 12px;font-size:28px;letter-spacing:-.04em}
.content-card p{color:#617690}
.steps{display:grid;gap:13px;margin-top:20px}
.step{display:grid;grid-template-columns:37px 1fr;gap:12px}
.step b{width:37px;height:37px;border-radius:11px;background:#eaf3ff;color:var(--blue);display:grid;place-items:center}
.step strong{display:block}
.step span{display:block;color:#70849e;font-size:13px;margin-top:2px}
.plan-cta{position:relative;overflow:hidden;padding:34px;background:linear-gradient(145deg,#082e69,#075fe0);color:#fff}
.plan-cta::after{content:"";position:absolute;width:240px;height:240px;border-radius:50%;right:-80px;bottom:-120px;background:rgba(255,255,255,.08)}
.plan-cta h2{font-size:31px;line-height:1.08;letter-spacing:-.04em;margin:0 0 12px;max-width:560px}
.plan-cta p{color:#cfe2ff;max-width:580px}
.plan-upload{position:relative;z-index:2;margin-top:22px;border:1.5px dashed rgba(255,255,255,.45);border-radius:17px;padding:17px;display:flex;align-items:center;gap:13px;cursor:pointer;background:rgba(255,255,255,.08)}
.plan-upload:hover,.plan-upload.drag{background:rgba(255,255,255,.15);border-color:#fff}
.upload-icon{width:46px;height:46px;border-radius:14px;background:#fff;color:var(--blue);display:grid;place-items:center;font-size:22px}
.plan-upload strong{display:block}
.plan-upload span{display:block;color:#cae0ff;font-size:12px}
.related{margin:54px auto}
.related h2{font-size:30px;letter-spacing:-.04em}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}
.related-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:19px;text-decoration:none;transition:.2s}
.related-card:hover{transform:translateY(-3px);border-color:#9dc1ef;box-shadow:0 13px 30px rgba(20,64,120,.09)}
.related-card small{color:var(--blue);font-weight:850}
.related-card strong{display:block;margin-top:8px;line-height:1.22}
.tool-footer{background:#071b35;color:#fff;margin-top:70px}
.footer-row{padding:38px 0;display:flex;justify-content:space-between;align-items:center;gap:25px}
.footer-row p{margin:0;color:#9eb3cf;font-size:13px}
.footer-links{display:flex;gap:20px}
.footer-links a{color:#c8d6e8;text-decoration:none;font-size:13px}
.transfer-overlay{position:fixed;inset:0;z-index:100;background:rgba(4,20,43,.72);backdrop-filter:blur(12px);display:grid;place-items:center;padding:22px}
.transfer-overlay[hidden]{display:none}
.transfer-card{max-width:430px;background:#fff;padding:32px;border-radius:24px;text-align:center;box-shadow:0 24px 80px rgba(0,0,0,.3)}
.transfer-spinner{width:55px;height:55px;border:5px solid #dce9fa;border-top-color:var(--blue);border-radius:50%;margin:0 auto 18px;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.landing-toast{position:fixed;z-index:110;right:20px;bottom:20px;background:#092854;color:#fff;padding:14px 17px;border-radius:13px;transform:translateY(30px);opacity:0;transition:.2s;max-width:360px}
.landing-toast.show{transform:none;opacity:1}
.landing-plan-drag::before{content:"Отпустите файл — откроем планировку в основном калькуляторе";position:fixed;inset:16px;z-index:90;border:3px dashed #6ba7ff;border-radius:24px;background:rgba(7,40,84,.88);color:#fff;display:grid;place-items:center;text-align:center;padding:28px;font-size:clamp(20px,4vw,38px);font-weight:900}
/* catalog */
.catalog-hero{padding:65px 0 35px;text-align:center}
.catalog-hero h1{font-size:clamp(44px,7vw,84px);line-height:.97;letter-spacing:-.06em;margin:18px auto;max-width:1050px}
.catalog-hero p{font-size:19px;color:#607590;max-width:780px;margin:auto}
.catalog-filter{position:sticky;top:88px;z-index:20;padding:14px;display:flex;gap:10px;margin:25px auto}
.catalog-search{flex:1;min-width:200px;height:50px;border:1px solid var(--line);border-radius:12px;padding:0 16px;outline:0}
.catalog-search:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(18,105,239,.1)}
.category-tabs{display:flex;gap:7px;overflow:auto;scrollbar-width:none}
.category-tabs button{white-space:nowrap;border:0;border-radius:10px;padding:0 13px;background:#eff5fc;color:#4f6784;font-size:12px;font-weight:850;cursor:pointer}
.category-tabs button.active{background:var(--blue);color:#fff}
.catalog-stats{display:flex;justify-content:space-between;color:#6b8099;font-size:13px;margin:18px 0}
.catalog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.catalog-card{overflow:hidden;text-decoration:none;transition:.2s}
.catalog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#9cc0ed}
.catalog-card img{width:100%;aspect-ratio:16/8.6;object-fit:cover;display:block;background:#dceaff}
.catalog-card-body{padding:20px}
.catalog-card small{color:var(--blue);font-weight:850}
.catalog-card h2{font-size:20px;line-height:1.16;letter-spacing:-.025em;margin:8px 0}
.catalog-card p{font-size:13px;color:#6b7f98;margin:0}
.catalog-card .open{display:flex;justify-content:space-between;color:var(--blue2);font-weight:850;margin-top:16px;font-size:13px}
.catalog-card[hidden]{display:none}
@media(max-width:1100px){
  .tool-hero{grid-template-columns:1fr;gap:28px}.tool-hero-art{min-height:360px}.calculator{grid-template-columns:1fr}.calc-panel{position:static}.related-grid{grid-template-columns:repeat(2,1fr)}.catalog-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .tool-shell{width:min(100% - 24px,1480px)}.tool-header-row{height:64px}.brand{font-size:19px}.brand-mark{width:37px;height:37px}.tool-nav a{display:none}.header-cta{min-height:40px;padding:0 12px;font-size:12px}
  .tool-breadcrumbs{padding-top:17px;white-space:nowrap;overflow:auto}.tool-hero{padding:28px 0}.tool-hero h1{font-size:40px}.tool-lead{font-size:16px}.tool-hero-art,.tool-hero-art img{min-height:260px}.tool-hero-art{border-radius:22px}.art-metric{right:12px;bottom:12px}
  .calculator{margin-top:5px}.calc-panel{padding:19px}.fields{grid-template-columns:1fr}.field.wide{grid-column:auto}.panel-head h2,.result-head h2{font-size:21px}.scenario{position:sticky;top:70px;z-index:3;background:#fff;padding:6px;margin:16px -6px}
  .result-head{padding:20px;display:block}.live-pill{display:inline-flex;margin-top:10px}.result-summary{grid-template-columns:1fr 1fr}.summary-cell.primary{grid-column:1/-1}.summary-cell{padding:16px}.result-body{grid-template-columns:1fr;padding:18px}.metrics{grid-template-columns:1fr 1fr}.chart-card{display:grid;grid-template-columns:145px 1fr;align-items:center}.donut{width:130px;height:130px}.donut::after{width:78px;height:78px}
  .under-calculator{grid-template-columns:1fr}.content-card,.plan-cta{padding:23px}.related-grid{grid-template-columns:1fr}.footer-row{display:block}.footer-links{margin-top:18px;flex-wrap:wrap}
  .catalog-hero{padding:40px 0 24px}.catalog-hero h1{font-size:45px}.catalog-filter{top:72px;display:block}.category-tabs{height:43px;margin-top:9px}.catalog-grid{grid-template-columns:1fr}.catalog-card{display:grid;grid-template-columns:120px 1fr}.catalog-card img{height:100%;aspect-ratio:auto}.catalog-card-body{padding:15px}.catalog-card h2{font-size:17px}.catalog-card p{display:none}
}
@media(max-width:410px){
  .tool-hero h1{font-size:35px}.result-summary{grid-template-columns:1fr}.summary-cell.primary{grid-column:auto}.metrics{grid-template-columns:1fr}.chart-card{grid-template-columns:1fr}.catalog-card{grid-template-columns:96px 1fr}
}
@media print{
  .tool-header,.tool-hero,.calc-panel,.plan-cta,.related,.tool-footer,.result-toolbar{display:none!important}
  body{background:#fff}.calculator{display:block;margin:0}.result-panel{box-shadow:none;border:0}.result-body{grid-template-columns:1fr 250px}
}