:root{
  --ink:#15161B;
  --surface:#1D1F27;
  --surface-2:#242631;
  --line:#2E3140;
  --paper:#EDEBE4;
  --muted:#8B8D98;
  --accent:#FF6B4A;
  --accent-soft:#FF6B4A22;
  --radius:14px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--ink);
  color:var(--paper);
  font-family:'Inter',system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
h1,h2,h3,.display{font-family:'Space Grotesk',sans-serif;letter-spacing:-0.01em;}
code,.mono{font-family:'JetBrains Mono',monospace;}
a{color:var(--accent);text-decoration:none;}
a:hover{text-decoration:underline;}

/* ---------- Site header ---------- */
.site-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 40px;border-bottom:1px solid var(--line);
  flex-wrap:wrap;gap:14px;
}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{width:20px;height:20px;border-radius:6px;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);}
.brand-name{font-size:17px;font-weight:700;font-family:'Space Grotesk',sans-serif;}
.site-nav{display:flex;gap:20px;flex-wrap:wrap;font-size:13.5px;}
.site-nav a{color:var(--muted);}
.site-nav a.active,.site-nav a:hover{color:var(--paper);text-decoration:none;}

/* ---------- Layout ---------- */
.wrap{max-width:920px;margin:0 auto;padding:44px 24px 80px;}
.tool-head{margin-bottom:26px;}
.eyebrow{
  font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--accent);
  letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px;
}
.tool-head h1{font-size:28px;margin:0 0 10px 0;}
.tool-head p{font-size:14.5px;color:var(--muted);margin:0;max-width:600px;line-height:1.7;}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;}
.row{display:flex;gap:20px;flex-wrap:wrap;}
.col{flex:1;min-width:220px;}
label{font-size:12px;color:var(--muted);display:block;margin-bottom:6px;}
input[type="text"],input[type="number"],select{
  width:100%;background:var(--surface-2);border:1px solid var(--line);color:var(--paper);
  padding:10px 12px;border-radius:8px;font-size:14px;outline:none;
}
input[type="text"]:focus,select:focus{border-color:var(--accent);}
input[type="color"]{width:56px;height:40px;border:1px solid var(--line);border-radius:8px;background:none;cursor:pointer;padding:2px;}
input[type="range"]{width:100%;accent-color:var(--accent);}

button.btn{background:var(--accent);color:#15161B;border:none;font-weight:600;font-size:13px;padding:10px 16px;border-radius:8px;cursor:pointer;}
button.btn.ghost{background:transparent;color:var(--paper);border:1px solid var(--line);}

.swatch-preview{width:100%;height:110px;border-radius:10px;border:1px solid var(--line);margin-bottom:14px;}
.value-grid{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;}
.hex-tag{background:var(--surface-2);border:1px solid var(--line);padding:8px 12px;border-radius:8px;font-size:13px;cursor:pointer;position:relative;font-family:'JetBrains Mono',monospace;}
.hex-tag:hover{border-color:var(--accent);}
.hex-tag .copy-hint{position:absolute;top:-24px;left:50%;transform:translateX(-50%);font-size:10px;background:var(--accent);color:#15161B;padding:2px 6px;border-radius:4px;opacity:0;transition:opacity .15s;white-space:nowrap;}
.hex-tag.copied .copy-hint{opacity:1;}

.palette-row{display:flex;gap:8px;margin-top:16px;border-radius:10px;overflow:hidden;border:1px solid var(--line);}
.palette-chip{flex:1;height:96px;position:relative;cursor:pointer;display:flex;align-items:flex-end;justify-content:center;padding-bottom:8px;}
.palette-chip span{font-family:'JetBrains Mono',monospace;font-size:11px;background:rgba(0,0,0,.35);color:#fff;padding:3px 6px;border-radius:5px;}

.gradient-preview{width:100%;height:180px;border-radius:12px;border:1px solid var(--line);margin-bottom:14px;}
.code-box{background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:14px 16px;font-size:13px;font-family:'JetBrains Mono',monospace;color:var(--accent);word-break:break-all;margin-top:10px;cursor:pointer;}

.contrast-preview{border-radius:10px;border:1px solid var(--line);padding:32px 20px;text-align:center;font-size:22px;font-weight:600;margin-top:16px;}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:6px 12px;border-radius:20px;margin-top:14px;margin-right:8px;}
.badge.pass{background:#1E3A2E;color:#6FCF97;}
.badge.fail{background:#3A1E1E;color:#E5736A;}
.ratio-num{font-family:'JetBrains Mono',monospace;font-size:32px;font-weight:600;margin-top:10px;}

.drop-zone{border:1.5px dashed var(--line);border-radius:12px;padding:36px 20px;text-align:center;color:var(--muted);font-size:13px;cursor:pointer;}
.drop-zone:hover{border-color:var(--accent);}
#extractCanvas{display:none;}
.extract-preview{max-width:100%;border-radius:10px;margin-top:16px;display:none;}

.name-result{display:flex;align-items:center;gap:16px;margin-top:18px;}
.name-swatch{width:64px;height:64px;border-radius:10px;border:1px solid var(--line);flex-shrink:0;}
.name-title{font-size:20px;font-weight:600;font-family:'Space Grotesk',sans-serif;}
.name-sub{font-size:12px;color:var(--muted);margin-top:2px;}

/* ---------- Explainer / FAQ blocks ---------- */
.explainer{margin-top:40px;}
.explainer h2{font-size:19px;margin:0 0 12px;}
.explainer p{font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 14px;}
.explainer table{width:100%;border-collapse:collapse;margin:16px 0;font-size:13.5px;}
.explainer th,.explainer td{border:1px solid var(--line);padding:9px 12px;text-align:left;}
.explainer th{background:var(--surface-2);color:var(--paper);font-weight:600;}
.explainer td{color:var(--muted);}

.faq-item{border-top:1px solid var(--line);padding:16px 0;}
.faq-item:first-child{border-top:none;}
.faq-q{font-weight:600;font-size:14px;margin-bottom:6px;}
.faq-a{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0;}

/* ---------- Tool grid on homepage ---------- */
.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:24px;}
.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px;display:block;transition:border-color .15s;}
.tool-card:hover{border-color:var(--accent);text-decoration:none;}
.tool-card .num{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--accent);}
.tool-card h3{font-size:16px;margin:8px 0 6px;color:var(--paper);font-family:'Space Grotesk',sans-serif;}
.tool-card p{font-size:12.5px;color:var(--muted);margin:0;line-height:1.6;}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:28px 40px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;font-size:12px;color:var(--muted);}
.site-footer a{color:var(--muted);margin-right:16px;}
.site-footer a:hover{color:var(--paper);}

/* ---------- Legal pages ---------- */
.legal p, .legal li{font-size:14px;color:var(--muted);line-height:1.8;}
.legal h2{font-size:18px;margin-top:32px;}
.legal ul{padding-left:20px;}

@media (max-width:640px){
  .site-header{padding:16px 20px;}
  .wrap{padding:28px 16px 60px;}
  .site-footer{padding:24px 20px;}
}