/* ValueLab design system v3 — Leon's taste pass.
   Space Grotesk display / Outfit body / IBM Plex Mono numerals,
   single blue accent, borderless cards, tinted shadows, grain overlay. */
:root{
  --bg:#f6f8fc; --card:#ffffff; --ink:#0e1526; --muted:#5a6a84;
  --line:#e2e8f3; --line-soft:#edf1f8;
  --accent:#1d4ed8; --accent-dark:#173eae; --accent-ink:#1e3a8a;
  --accent-soft:#e9effe; --accent-ghost:#f3f6fe;
  --green:#15803d; --red:#b91c1c; --amber:#b45309;
  --green-bg:#dcfce7; --red-bg:#fee2e2; --amber-bg:#fef3c7;
  --radius:16px; --radius-sm:12px; --max:1120px;
  --font:"Outfit",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Helvetica,Arial,sans-serif;
  --display:"Space Grotesk","Outfit",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --shadow-sm:0 1px 2px rgba(23,43,99,.05),0 2px 6px rgba(23,43,99,.05);
  --shadow-md:0 6px 18px rgba(23,43,99,.08),0 2px 6px rgba(23,43,99,.05);
  --shadow-lg:0 18px 44px rgba(23,43,99,.12),0 4px 10px rgba(23,43,99,.06);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);
  line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
/* subtle grain to break digital flatness */
body::after{content:"";position:fixed;inset:0;z-index:2000;pointer-events:none;opacity:.028;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E")}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
::selection{background:#cfe0ff}

h1,h2,h3{font-family:var(--display);line-height:1.18;letter-spacing:-.022em;font-weight:650;text-wrap:balance}
h1{font-size:clamp(2rem,1.3rem+2.6vw,2.75rem);margin:.5em 0 .35em}
h2{font-size:clamp(1.35rem,1.1rem+1vw,1.6rem);margin:2.4em 0 .55em}
h3{font-size:1.14rem;margin:1.6em 0 .4em}
p{margin:.65em 0}
small{color:var(--muted)}
.lede{font-size:1.1rem;color:var(--muted);max-width:62ch}

/* ---------- header ---------- */
.site-header{background:rgba(255,255,255,.9);backdrop-filter:saturate(1.4) blur(12px);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-header .wrap{display:flex;align-items:center;gap:26px;padding-top:12px;padding-bottom:12px}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:1.3rem;
  color:var(--ink);text-decoration:none;letter-spacing:-.02em}
.logo:hover{text-decoration:none}
.logo img{width:30px;height:30px;border-radius:8px;box-shadow:var(--shadow-sm)}
.logo span{color:var(--accent)}
.main-nav{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
.main-nav a{color:#33415c;font-size:.9rem;font-weight:550;padding:8px 13px;border-radius:10px;text-decoration:none;transition:background .2s var(--ease),color .2s var(--ease)}
.main-nav a:hover{background:var(--accent-ghost);color:var(--accent-ink);text-decoration:none}
.main-nav a.active{background:var(--ink);color:#fff}
.nav-toggle{display:none;margin-left:auto;background:var(--card);border:1px solid var(--line);
  border-radius:10px;padding:8px 13px;font-size:1rem;cursor:pointer;color:var(--ink)}

/* ---------- hero ---------- */
.hero{background:
  radial-gradient(1000px 420px at 82% -80px,#dfe9ff 0%,rgba(223,233,255,0) 62%),
  linear-gradient(180deg,#eef3ff 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);padding:64px 0 60px;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
.hero h1{margin-top:.4em}
.hero .btn-row{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.hero-art{margin:0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);line-height:0}
.hero-art img{width:100%;height:auto;display:block}
@media(max-width:860px){.hero-inner{grid-template-columns:1fr;gap:30px}.hero{padding:44px 0}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:42px;padding:10px 22px;border-radius:12px;font-weight:600;font-size:.94rem;line-height:1.2;
  border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer;
  text-decoration:none;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease)}
.btn:hover{text-decoration:none;border-color:#b9c8e8;box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.btn:active{transform:translateY(1px) scale(.98);box-shadow:none}
.btn:focus-visible{outline:3px solid #bcd0fb;outline-offset:2px}
.btn-primary{background:var(--accent);border-color:var(--accent-dark);color:#fff;
  box-shadow:0 2px 10px rgba(29,78,216,.30)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;border-color:var(--accent-dark);
  box-shadow:0 5px 16px rgba(29,78,216,.36)}
.btn-sm{min-height:36px;padding:7px 15px;font-size:.86rem;border-radius:10px}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- badges ---------- */
.badge{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;
  background:var(--accent-soft);color:var(--accent-dark);
  border-radius:8px;padding:5px 11px;margin-bottom:12px}

/* ---------- cards (borderless, shadow carries hierarchy) ---------- */
.card{background:var(--card);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm)}
.calc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin:28px 0}
.calc-card{transition:transform .2s var(--ease),box-shadow .25s var(--ease)}
.calc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.calc-card h3{margin-top:2px}
.calc-card h3 a{color:var(--ink)}
.calc-card h3 a:hover{color:var(--accent);text-decoration:none}
.calc-card p{color:var(--muted);font-size:.93rem}
.calc-card .btn{margin-top:8px}

/* ---------- calculator layout ---------- */
.calc-layout{display:grid;grid-template-columns:392px 1fr;gap:26px;margin:30px 0;align-items:start}
@media(max-width:920px){.calc-layout{grid-template-columns:1fr}}
.input-row{margin-bottom:18px}
.input-row label{display:block;font-weight:600;font-size:.9rem}
.input-row small{display:block;color:var(--muted);font-size:.8rem;font-weight:400;margin-top:4px;line-height:1.55;max-width:60ch}
.paired{display:flex;gap:10px;align-items:center;margin-top:8px}
.paired input[type=range]{flex:1;accent-color:var(--accent);min-width:0}
.paired input[type=number]{width:104px;flex:none;padding:9px 11px;border:1px solid var(--line);
  border-radius:10px;font-size:.95rem;font-family:var(--mono);font-variant-numeric:tabular-nums;background:#fbfdff;transition:border-color .2s,box-shadow .2s}
.paired input[type=number]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #d7e3fd}
.scenario-tabs{display:flex;gap:8px;margin-bottom:20px}
.scenario-tabs button{flex:1;padding:10px 6px;border-radius:12px;border:1px solid var(--line);
  background:var(--card);font-weight:600;cursor:pointer;font-size:.9rem;font-family:var(--font);transition:border-color .2s var(--ease),background .2s var(--ease),transform .15s var(--ease)}
.scenario-tabs button:hover{border-color:#b9c8e8}
.scenario-tabs button:active{transform:scale(.98)}
.scenario-tabs button.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.scenario-tabs button small{display:block;font-weight:400;color:var(--muted);font-size:.75rem}
.scenario-tabs button.active small{color:#cbd5e1}

/* ---------- results ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:22px 0}
.stat{background:var(--card);border-radius:var(--radius-sm);padding:16px 17px;box-shadow:var(--shadow-sm)}
.stat .k{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.stat .v{font-size:1.42rem;font-weight:600;font-family:var(--mono);font-variant-numeric:tabular-nums;margin-top:3px;letter-spacing:-.01em}
.stat .s{font-size:.8rem;color:var(--muted)}
.value-hero{background:linear-gradient(135deg,#17233f 0%,#0e1526 58%,#1e3a8a 135%);
  color:#fff;border-radius:var(--radius);padding:28px 30px;margin-bottom:22px;box-shadow:var(--shadow-md)}
.value-hero .k{color:#93a5c8;font-size:.78rem;text-transform:uppercase;letter-spacing:.07em;font-weight:600}
.value-hero .v{font-size:clamp(2.1rem,1.5rem+2.4vw,2.8rem);font-weight:600;font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.value-hero .s{color:#c6d3ea}
.positive{color:var(--green)} .negative{color:var(--red)}

/* ---------- tables ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-sm);margin:18px 0;background:var(--card)}
.table-scroll table{margin:0;border:0}
table{border-collapse:collapse;width:100%;font-size:.88rem}
th,td{padding:10px 12px;border-bottom:1px solid var(--line-soft);text-align:right;font-variant-numeric:tabular-nums}
thead th{background:#f1f5fc;font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:#3b4a63;border-bottom:1px solid var(--line)}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:#f8fbff}
th:first-child,td:first-child{text-align:left}
td.num,th.num{font-family:var(--mono)}
.sens td.heat-high{background:var(--green-bg);font-weight:700}
.sens td.heat-mid{background:#f0fdf4}
.sens td.heat-low{background:#fffbeb}
.sens td.heat-bad{background:var(--red-bg)}

/* ---------- explainers ---------- */
.explainer{max-width:780px}
.explainer p{max-width:68ch}
.explainer ul{padding-left:1.3em}
.explainer li{margin:.35em 0}
.note{background:#eff6ff;border:1px solid #bfdbfe;border-radius:var(--radius-sm);
  padding:16px 19px;font-size:.9rem;margin:24px 0}
.note strong{color:var(--accent-dark)}
details{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--card);
  margin:10px 0;padding:2px 19px;transition:border-color .2s,box-shadow .2s}
details[open]{border-color:#b9c8e8;box-shadow:var(--shadow-sm)}
details summary{cursor:pointer;font-weight:600;padding:13px 0;list-style:none;transition:color .2s}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";float:right;color:var(--accent);font-weight:700}
details[open] summary::after{content:"–"}
details summary:hover{color:var(--accent)}
.faq details{padding:2px 19px}

/* ---------- check list ---------- */
.check-list{list-style:none;padding:0;margin:18px 0}
.check-list li{padding:9px 0 9px 34px;position:relative;line-height:1.55}
.check-list li::before{content:"✓";position:absolute;left:2px;top:9px;width:22px;height:22px;
  border-radius:50%;background:var(--green-bg);color:var(--green);font-weight:800;font-size:.8rem;
  display:inline-flex;align-items:center;justify-content:center}

/* ---------- comparison table (free vs toolkit) ---------- */
.compare{border-radius:var(--radius);overflow:hidden;margin:24px 0;box-shadow:var(--shadow-sm);background:var(--card)}
.compare table{margin:0;font-size:.92rem}
.compare thead th{background:var(--ink);color:#fff;border:0;font-size:.85rem;padding:15px 17px}
.compare thead th:last-child{background:var(--accent-dark)}
.compare td,.compare th{padding:13px 17px}
.compare td.yes{color:var(--green);font-weight:700}
.compare td.no{color:#b6c0cf}
.compare tbody tr:last-child td{background:#f6f9ff;font-weight:700}

/* ---------- value props ---------- */
.value-props{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:26px 0}
.value-prop{background:var(--card);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .25s var(--ease)}
.value-prop:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.value-prop h3{margin-top:0;font-size:1.04rem}
.value-prop p{color:var(--muted);font-size:.9rem;margin-bottom:0}
.value-prop .tag{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--accent-dark)}

/* ---------- CTA ---------- */
.cta-banner{background:linear-gradient(135deg,#17233f 0%,#0e1526 55%,#1e3a8a 140%);color:#fff;
  border-radius:var(--radius);padding:40px;margin:48px 0;display:flex;gap:30px;align-items:center;
  justify-content:space-between;flex-wrap:wrap;box-shadow:var(--shadow-md)}
.cta-banner h2{margin:0 0 .3em;color:#fff}
.cta-banner p{color:#c6d3ea;margin:0;max-width:56ch}
.price{font-family:var(--display);font-size:2.15rem;font-weight:700;letter-spacing:-.02em}
.price small{font-size:.95rem;font-weight:500;color:#93a5c8;font-family:var(--font)}
.cta-slim{background:var(--card);border:1px solid #c9d8f5;border-left:5px solid var(--accent);
  border-radius:var(--radius-sm);padding:22px 25px;margin:36px 0;display:flex;gap:20px;
  align-items:center;justify-content:space-between;flex-wrap:wrap;box-shadow:var(--shadow-sm)}
.cta-slim h3{margin:0 0 4px;font-size:1.06rem}
.cta-slim p{margin:0;color:var(--muted);font-size:.9rem;max-width:62ch}
.cta-slim .price{font-size:1.55rem}
.cta-slim .btn{flex:none}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--card);margin-top:72px;padding:42px 0 32px}
.site-footer .wrap{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:28px}
@media(max-width:700px){.site-footer .wrap{grid-template-columns:1fr}}
.site-footer h4{margin:0 0 .7em;font-size:.95rem;font-family:var(--display)}
.site-footer ul{list-style:none;padding:0;margin:0;font-size:.9rem}
.site-footer li{margin:.45em 0}
.disclaimer{font-size:.78rem;color:var(--muted);margin-top:26px;max-width:90ch}

/* ---------- modal ---------- */
.modal-backdrop{display:none;position:fixed;inset:0;background:rgba(14,21,38,.55);
  backdrop-filter:blur(4px);z-index:100;align-items:center;justify-content:center;padding:20px}
.modal-backdrop.open{display:flex}
.modal{background:#fff;border-radius:18px;padding:32px;max-width:450px;width:100%;box-shadow:var(--shadow-lg)}
.modal h3{margin-top:0;font-size:1.25rem}

/* ---------- responsive ---------- */
@media(max-width:920px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--card);
    border-bottom:1px solid var(--line);padding:10px 18px 16px;box-shadow:var(--shadow-md)}
  .main-nav a{display:block;padding:11px 12px}
  .nav-toggle{display:block}
  .site-header{position:sticky}
  .site-header .wrap{position:relative}
}
@media(max-width:640px){
  .wrap{padding:0 16px}
  .cta-banner{padding:28px 22px}
  .cta-banner>div:last-child{text-align:left!important;width:100%}
  .calc-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .hero .btn-row .btn{flex:1;justify-content:center}
  table{font-size:.82rem}
  th,td{padding:8px 9px}
}

/* ---------- print: clean valuation report ---------- */
@media print{
  body::after{display:none}
  .site-header,.site-footer,.cta-banner,.cta-slim,.explainer,nav,.no-print{display:none!important}
  body{background:#fff}
  .calc-layout{grid-template-columns:1fr}
  .card{box-shadow:none}
}