/* BizCalcHub design system - navy / blue theme */

:root{
  --ink:#0b1524;
  --ink-2:#1f2b3d;
  --muted:#5b6b82;
  --muted-2:#8996a8;
  --line:#e3e8f1;
  --line-2:#d3dbe7;
  --bg:#ffffff;
  --bg-soft:#f5f7fb;
  --bg-soft-2:#eef2f9;

  --brand:#2563eb;
  --brand-d:#1d4ed8;
  --brand-l:#60a5fa;
  --brand-wash:#eff5ff;
  --brand-ink:#0b1f4d;

  --accent:#f59e0b;
  --accent-d:#d97706;
  --danger:#dc2626;
  --ok:#0d9488;

  --deep-1:#050b18;
  --deep-2:#0a1730;
  --deep-3:#102a4c;

  --radius:16px;
  --radius-sm:10px;
  --shadow-s:0 1px 2px rgba(11,21,36,.05);
  --shadow-m:0 4px 16px -4px rgba(11,21,36,.10), 0 1px 3px rgba(11,21,36,.05);
  --shadow-l:0 28px 56px -24px rgba(11,21,36,.45);
  --max:1120px;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-d);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
@media(max-width:600px){.wrap{padding:0 16px}}

/* ---------- header ---------- */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.85);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:17px;letter-spacing:-.025em;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo .mark{
  width:27px;height:27px;border-radius:8px;flex:none;
  background:linear-gradient(145deg,#3b82f6,#1d4ed8);
  box-shadow:0 3px 10px -2px rgba(37,99,235,.55);
  display:grid;place-items:center;color:#fff;font-size:14px;font-weight:800;
}
.logo span{color:var(--brand-d)}
nav.top{display:flex;gap:2px;font-size:14.5px;font-weight:500}
nav.top a{color:var(--muted);padding:7px 11px;border-radius:8px;transition:.16s}
nav.top a:hover{color:var(--ink);background:var(--bg-soft-2);text-decoration:none}
nav.top a.on{color:var(--brand-d);background:var(--brand-wash)}
@media(max-width:820px){nav.top{display:none}}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 400px at 8% -20%, rgba(59,130,246,.42), transparent 62%),
    radial-gradient(800px 360px at 95% 0%, rgba(99,102,241,.32), transparent 64%),
    linear-gradient(158deg,var(--deep-1) 0%,var(--deep-2) 48%,var(--deep-3) 100%);
  color:#fff;padding:52px 0 44px;
}
.hero:after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(1200px 220px at 50% 108%, rgba(2,6,20,.55), transparent 70%);
}
.hero .wrap{position:relative;z-index:1;max-width:920px}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:#93c5fd;background:rgba(147,197,253,.10);
  border:1px solid rgba(147,197,253,.26);
  padding:5px 11px;border-radius:99px;margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:#60a5fa;box-shadow:0 0 0 3px rgba(96,165,250,.22)}
.hero h1{font-size:clamp(30px,4.8vw,48px);line-height:1.1;letter-spacing:-.038em;margin:0 0 16px;font-weight:800}
.hero h1 em{font-style:normal;color:#7dabfd}
.hero p{color:rgba(255,255,255,.74);font-size:17.5px;margin:0;max-width:660px;line-height:1.6}
.hero .cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.pill{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  padding:11px 18px;border-radius:10px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.15);color:#dbeafe;
  transition:.16s;
}
.pill:hover{text-decoration:none;background:rgba(255,255,255,.15);transform:translateY(-1px)}
.pill.solid{
  background:linear-gradient(150deg,#3b82f6,#1d4ed8);border-color:transparent;color:#fff;
  box-shadow:0 12px 26px -12px rgba(59,130,246,.95);
}
.pill.solid:hover{filter:brightness(1.07)}

/* ---------- sections ---------- */
section{padding:48px 0}
section.tight{padding:36px 0}
section.soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:660px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.8vw,30px);letter-spacing:-.03em;margin:0 0 10px;font-weight:800}
.section-head p{color:var(--muted);margin:0;font-size:16px}

h2{font-size:clamp(21px,2.6vw,27px);letter-spacing:-.03em;margin:0 0 14px;font-weight:800}
h3{font-size:17px;margin:30px 0 8px;letter-spacing:-.01em;font-weight:700}
p{margin:0 0 14px}
ul,ol{margin:0 0 16px;padding-left:22px}
li{margin-bottom:7px}
li::marker{color:var(--muted-2)}
.muted{color:var(--muted)}
code{
  font-family:var(--mono);font-size:.87em;background:var(--brand-wash);
  padding:2px 6px;border-radius:5px;color:var(--brand-ink);
  border:1px solid #d6e4ff;
}

/* ---------- filter chips ---------- */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 24px}
.chip{
  padding:8px 16px;border-radius:99px;border:1px solid var(--line-2);
  background:#fff;font:inherit;font-size:13.5px;font-weight:600;color:var(--muted);
  cursor:pointer;transition:background .15s, border-color .15s, color .15s;
}
.chip:hover{border-color:#bcd3f7;color:var(--brand-d);background:var(--brand-wash)}
.chip.active{background:var(--brand-d);border-color:var(--brand-d);color:#fff}
.chip.active:hover{background:var(--brand-d);color:#fff}
.chip .n{opacity:.6;font-weight:500;margin-left:5px;font-size:12px}

/* ---------- cards ---------- */
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.grid.two{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
@media(max-width:1020px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:800px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:520px){.grid{grid-template-columns:minmax(0,1fr)}}
.card{
  display:block;position:relative;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 16px 15px;box-shadow:var(--shadow-s);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover{
  transform:translateY(-2px);border-color:#bcd3f7;
  box-shadow:0 12px 26px -14px rgba(37,99,235,.4), 0 2px 6px rgba(11,21,36,.05);
  text-decoration:none;
}
.card .ico{
  width:32px;height:32px;border-radius:9px;margin-bottom:11px;
  background:var(--brand-wash);border:1px solid #d6e4ff;
  display:grid;place-items:center;color:var(--brand-d);
}
.card .ico svg{width:16px;height:16px}
.card b{display:block;font-size:14.5px;line-height:1.3;letter-spacing:-.012em;margin-bottom:4px;color:var(--ink)}
.card small{display:block;color:var(--muted);font-size:12.5px;line-height:1.45}
.card .go{display:none}
.card.alt .ico{background:#fff7ed;border-color:#fed7aa;color:var(--accent-d)}
.card.hide{display:none}

/* ---------- calculator ---------- */
.calc{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow-m)}
@media(max-width:600px){.calc{padding:18px}}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field .hint{display:block;font-size:12px;color:var(--muted-2);font-weight:400;margin-top:3px}
input[type=number],input[type=text],input[type=time],input[type=date],select{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--line-2);border-radius:var(--radius-sm);
  font-size:15px;font-family:inherit;color:var(--ink);background:#fff;
  transition:border-color .15s, box-shadow .15s;
  font-variant-numeric:tabular-nums;
}
input:hover,select:hover{border-color:#bcc9db}
input:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(37,99,235,.16)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.row.three{grid-template-columns:repeat(3,1fr)}
@media(max-width:700px){.row,.row.three{grid-template-columns:1fr}}

/* result */
.result{
  margin-top:22px;padding:22px;border-radius:14px;
  background:linear-gradient(168deg,#f2f7ff,#eff5ff 55%,#f7faff);
  border:1px solid #d6e4ff;
}
.result .label{font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--brand-d);opacity:.8;margin-bottom:6px}
.result .big{
  font-size:clamp(34px,6vw,46px);font-weight:800;letter-spacing:-.04em;line-height:1;
  color:var(--brand-ink);font-variant-numeric:tabular-nums;
}
.result .sub{font-size:14px;color:var(--muted);margin-top:8px}
.result table{width:100%;border-collapse:collapse;margin-top:18px;font-size:14px}
.result table tr{border-top:1px solid rgba(37,99,235,.12)}
.result table tr:first-child{border-top:0}
.result table td{padding:9px 0;color:var(--muted)}
.result table td:last-child{text-align:right;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.result table tr.hi td{color:var(--brand-ink);font-weight:700}

/* verdict banner (rent vs buy) */
.verdict{
  margin-top:22px;padding:20px 22px;border-radius:14px;
  background:linear-gradient(150deg,var(--deep-2),var(--deep-3));
  color:#fff;border:1px solid #1b3a63;
}
.verdict .k{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:#93c5fd;opacity:.9}
.verdict .v{font-size:clamp(24px,4.2vw,34px);font-weight:800;letter-spacing:-.03em;margin-top:4px}
.verdict .n{color:rgba(255,255,255,.7);font-size:14px;margin-top:6px}

/* split bars */
.split{display:flex;height:14px;border-radius:99px;overflow:hidden;background:var(--bg-soft-2);margin-top:10px}
.split i{display:block;height:100%;transition:width .4s ease}
.split .b1{background:linear-gradient(90deg,#3b82f6,#2563eb)}
.split .b2{background:linear-gradient(90deg,#fbbf24,#f59e0b)}
.legend{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-top:10px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{width:10px;height:10px;border-radius:3px;display:inline-block}

/* ---------- tables ---------- */
table.data{
  width:100%;border-collapse:separate;border-spacing:0;font-size:14.5px;
  margin:18px 0 22px;border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
table.data th,table.data td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line)}
table.data tr:last-child td{border-bottom:0}
table.data th{background:var(--bg-soft);font-weight:700;font-size:13px;color:var(--ink-2)}
table.data tr:nth-child(even) td{background:#fbfcfe}

/* ---------- faq ---------- */
.faq{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;box-shadow:var(--shadow-s)}
details{border-bottom:1px solid var(--line)}
details:last-child{border-bottom:0}
details summary{
  cursor:pointer;list-style:none;padding:16px 20px;font-weight:650;font-size:15.5px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;transition:background .15s;
}
details summary::-webkit-details-marker{display:none}
details summary:hover{background:var(--bg-soft)}
details summary:after{
  content:"+";flex:none;width:22px;height:22px;border-radius:6px;
  background:var(--brand-wash);color:var(--brand-d);
  display:grid;place-items:center;font-weight:700;font-size:15px;line-height:1;
}
details[open] summary:after{content:"-";background:var(--brand-d);color:#fff}
details .body{padding:0 20px 18px;color:#41506a;font-size:15px}

/* ---------- breadcrumb / page head ---------- */
.crumb{font-size:13px;color:var(--muted-2);padding:22px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand-d)}
.crumb .sep{margin:0 7px;opacity:.5}
.page-head{padding:16px 0 6px;max-width:780px}
.page-head h1{font-size:clamp(26px,4vw,38px);line-height:1.14;letter-spacing:-.035em;margin:0 0 12px;font-weight:800}
.page-head p{color:var(--muted);font-size:17px;margin:0 0 26px;max-width:680px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;
  font:inherit;font-size:15px;font-weight:650;cursor:pointer;
  background:linear-gradient(158deg,#3b82f6,#1d4ed8);color:#fff;
  box-shadow:0 10px 22px -12px rgba(37,99,235,.95);
  transition:transform .15s, box-shadow .15s, filter .15s;
}
.btn:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 14px 28px -12px rgba(37,99,235,1)}
.btn:active{transform:translateY(0)}
.btn.ghost{background:#fff;color:var(--ink-2);border-color:var(--line-2);box-shadow:var(--shadow-s)}
.btn.ghost:hover{border-color:#bcd3f7;color:var(--brand-d);filter:none}
.btn.sm{height:38px;font-size:14px;padding:0 14px;border-radius:9px}

/* ---------- live dashboard ---------- */
.dash{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 420px at 78% -10%, rgba(56,189,248,.26), transparent 60%),
    radial-gradient(700px 360px at 5% 110%, rgba(99,102,241,.30), transparent 62%),
    linear-gradient(165deg,#050b18 0%,#081428 45%,#0b1e3a 100%);
  border:1px solid #16304f;border-radius:22px;padding:34px 32px 30px;
  color:#fff;box-shadow:var(--shadow-l);
}
@media(max-width:640px){.dash{padding:22px 18px}}
.dash:before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(circle at 50% 20%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000,transparent 78%);
}
.dash-top{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:6px}
.dash-label{font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#93c5fd;opacity:.85}
.dash-clock{font-family:var(--mono);font-size:13px;color:rgba(255,255,255,.5);letter-spacing:.02em}
.dash-amount{
  position:relative;
  font-family:var(--mono);
  font-size:clamp(48px,13vw,116px);
  font-weight:700;letter-spacing:-.05em;line-height:.98;
  font-variant-numeric:tabular-nums;
  color:#eaf4ff;
  text-shadow:0 0 32px rgba(96,165,250,.55), 0 0 8px rgba(147,197,253,.45);
  margin:10px 0 4px;white-space:nowrap;
}
.dash-amount .cents{color:#7db4ff;text-shadow:0 0 26px rgba(96,165,250,.6)}
.dash-caption{position:relative;color:rgba(255,255,255,.58);font-size:14.5px}
.dash-caption b{color:#bfdbfe;font-weight:700}
.dash-progress{position:relative;margin-top:26px}
.dash-track{height:12px;border-radius:99px;background:rgba(255,255,255,.09);overflow:hidden}
.dash-track > i{
  display:block;height:100%;width:0%;border-radius:99px;
  background:linear-gradient(90deg,#1d4ed8,#3b82f6,#60a5fa,#93c5fd);
  box-shadow:0 0 22px rgba(96,165,250,.85);
  transition:width .3s linear;
}
.dash-scale{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11.5px;color:rgba(255,255,255,.4);margin-top:7px}
.dash-metrics{position:relative;display:grid;grid-template-columns:repeat(auto-fit,minmax(122px,1fr));gap:12px;margin-top:26px}
.dash-metrics > div{
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.09);
  border-radius:13px;padding:13px 15px;
}
.dash-metrics .k{font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.45);margin-bottom:5px}
.dash-metrics .v{font-size:16.5px;font-weight:700;color:#e8f2ff;font-variant-numeric:tabular-nums;font-family:var(--mono)}
.dash-status{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;padding:6px 13px;border-radius:99px;margin-top:22px;
  background:rgba(96,165,250,.14);color:#bfdbfe;border:1px solid rgba(96,165,250,.28);
}
.dash-status .d{width:7px;height:7px;border-radius:50%;background:#60a5fa;box-shadow:0 0 0 3px rgba(96,165,250,.22)}
.dash-status.on .d{background:#34d399;box-shadow:0 0 0 3px rgba(52,211,153,.25);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.dash-status.idle{background:rgba(255,255,255,.06);color:rgba(255,255,255,.55);border-color:rgba(255,255,255,.12)}
.dash-status.idle .d{background:#7b8ba3;box-shadow:0 0 0 3px rgba(123,139,163,.18)}
.dash-status.done{background:rgba(245,158,11,.13);color:#fcd34d;border-color:rgba(245,158,11,.28)}
.dash-status.done .d{background:#f59e0b;box-shadow:0 0 0 3px rgba(245,158,11,.2)}

/* ---------- invoice ---------- */
.inv{border:1px solid var(--line);border-radius:16px;padding:26px;background:#fff;box-shadow:var(--shadow-m)}
@media(max-width:600px){.inv{padding:16px}}
.inv-head{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:22px}
.inv-title{font-size:26px;font-weight:800;letter-spacing:-.03em;margin-bottom:14px}
.who{font-size:13px;color:var(--muted);line-height:1.9}
.who b{color:var(--ink);font-size:12px;letter-spacing:.06em;text-transform:uppercase;display:block;margin-bottom:2px}
.who input{border:0;border-bottom:1px dashed var(--line-2);border-radius:0;height:30px;padding:0 2px;font-size:13.5px;background:transparent}
.who input:focus{box-shadow:none;border-bottom-color:var(--brand)}
.items{width:100%;border-collapse:collapse;font-size:14px;margin:6px 0}
.items th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted-2);font-weight:700;border-bottom:1px solid var(--line);padding:8px 6px}
.items td{padding:3px 6px;border-bottom:1px solid #f3f6fa}
.items input{border:0;background:transparent;height:36px;padding:0 4px;font-size:14px;border-radius:6px}
.items input:focus{box-shadow:0 0 0 2px rgba(37,99,235,.18)}
.items .num{text-align:right}
.items .amt{text-align:right;font-weight:650;font-variant-numeric:tabular-nums;white-space:nowrap}
.totals{margin-left:auto;width:300px;font-size:14.5px;margin-top:14px}
.totals td{padding:7px 0;color:var(--muted)}
.totals td:last-child{text-align:right;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.totals tr.grand td{border-top:2px solid var(--ink);padding-top:12px;font-size:19px;color:var(--ink);font-weight:800}
.totals tr.grand td:last-child{color:var(--brand-d)}
.del{border:0;background:transparent;color:var(--muted-2);cursor:pointer;font-size:14px;padding:4px 8px;border-radius:6px;line-height:1}
.del:hover{background:#fef2f2;color:var(--danger)}
.noprint{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
@media print{
  header.site,footer.site,.crumb,.noprint,.page-head p,.print-hide,.hero{display:none!important}
  body{background:#fff}
  .wrap{max-width:none;padding:0}
  .inv{border:0;box-shadow:none;padding:0}
  .items input,.who input{border:0}
  a{color:#000}
}

/* ---------- footer ---------- */
footer.site{border-top:1px solid var(--line);background:var(--bg-soft);padding:38px 0;font-size:13.5px;color:var(--muted)}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
footer.site a{color:var(--muted)}
footer.site a:hover{color:var(--brand-d)}
footer.site .fl{display:flex;gap:18px;flex-wrap:wrap}

/* ---------- ad slots ---------- */
.ad-slot{
  margin:28px 0;
  display:flex;align-items:center;justify-content:center;
  border:1px dashed var(--line-2);border-radius:12px;
  background:linear-gradient(180deg,#fbfcfe,#f6f9fd);
  overflow:hidden;
}
.ad-slot:empty::before{
  content:"advertisement";
  font-size:10.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted-2);opacity:.5;
}
.ad-slot > ins{width:100%}
@media print{.ad-slot{display:none}}