/* HexTints — minimal, fast CSS (no frameworks) */
:root{
  --bg:#111;
  --panel:#1a1a1a;
  --muted:#888;
  --text:#eee;
  --accent:#06b6d4;
  --border:#2a2a2a;
}
*{box-sizing:border-box}
html,body,#app{height:100%}
body{
  margin:0;background:#0e0e10;color:var(--text);font:14px/1.4 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}
a{color:inherit;text-decoration:none}
#app{display:grid;grid-template-columns:220px 1fr 340px;gap:0;min-height:100vh}

.sidebar{
  background:#121316;border-right:1px solid var(--border);padding:12px 12px 8px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow:auto
}
.brand{display:flex;align-items:center;gap:8px;padding:4px 0 10px}
.menu-btn{display:none}
.logo{font-weight:900;letter-spacing:.2px;font-size:20px}
.logo span{opacity:.9;font-weight:700}
.nav{display:flex;flex-direction:column;gap:18px;margin-top:4px}
.nav h3{margin:6px 0 6px;font-size:12px;letter-spacing:.08em;color:#c6c6c6;text-transform:uppercase}
.nav p{margin:0;color:#cfcfcf}
.copyright{margin-top:auto;padding-top:16px;border-top:1px solid var(--border);color:#777}

.content{display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;align-items:center;justify-content:flex-end;border-bottom:1px solid var(--border);background:#0f1014;padding:10px 12px;position:sticky;top:0;z-index:2}
.search{display:flex;gap:8px;align-items:center;width:min(720px,100%)}
.left-links{display:flex;gap:10px;margin-right:8px}
.nav-link{border:1px solid #2a2c33;background:#171922;color:#cfd3ff;padding:8px 10px;border-radius:8px}
.nav-link:hover{background:#1f2230}
#hexInput{flex:1;padding:10px 12px;border-radius:8px;border:1px solid #2a2c33;background:#161821;color:#eaeaff;outline:none}
#hexInput::placeholder{color:#8f95b3}
.icon-btn{border:1px solid #2a2c33;background:#171922;color:#cfd3ff;padding:8px 10px;border-radius:8px;cursor:pointer}
.icon-btn:hover{background:#1f2230}
.go{border:1px solid #2a2c33;background:#24273a;color:#e9ecff;padding:10px 12px;border-radius:8px;cursor:pointer}
.go:hover{background:#2a2f49}

#logo{width: 9rem; height: auto;}

.mosaic{display:grid;grid-template-columns:repeat(auto-fill,minmax(16px,1fr));gap:4px;padding:12px}
.mosaic .tile{aspect-ratio:1/1;border-radius:4px;border:1px solid #0002;cursor:pointer}
.mosaic .tile:hover{outline:2px solid #fff4}

.palette-view{padding:0 0 12px;display:flex;flex-direction:column}
.palette-view.hidden{display:none}
.palette-header{display:flex;align-items:center;justify-content:space-between;padding:12px;border-bottom:1px solid var(--border);background:#0f1014;position:sticky;top:50px;z-index:1}
.chip{display:inline-flex;align-items:center;gap:10px;padding:8px 12px;border:1px solid var(--border);border-radius:999px;background:#14151c;font-weight:600}
.modes{display:flex;gap:6px;align-items:center}
.mode-btn{border:1px solid #2a2c33;background:#14151c;color:#e9ecff;padding:8px 10px;border-radius:8px;cursor:pointer}
.mode-btn.active{background:#2a2f49}
.scale-list{list-style:none;margin:0;padding:0;overflow:auto}
.scale-item{border-bottom:1px solid #0003}
.swatch{width:100%;padding:14px 16px;display:flex;justify-content:space-between;align-items:center;background:transparent;border:none;color:#000;cursor:pointer;font-weight:600}
.swatch .hex{background:#0009;color:#fff;padding:4px 8px;border-radius:6px;font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace}
.swatch:focus{outline:2px dashed #fff}

/* Tooltip for swatch hover */
.tooltip{position:fixed;pointer-events:none;background:#0b0b0e;color:#fff;border:1px solid #ffffff22;padding:6px 8px;border-radius:6px;box-shadow:0 6px 18px #000a;font-size:12px;z-index:1000;white-space:nowrap}

.ads{border-left:1px solid var(--border);background:#0f1014;position:sticky;top:0;height:100vh;overflow:auto}
.ads-inner{padding:12px;display:flex;flex-direction:column;gap:12px}
/* Prime recommendation card */
.prime-rec{position:relative;display:flex;flex-direction:column;gap:10px;background:#1a1a1e;border:1px solid rgba(255,255,255,0.08);border-radius:10px;padding:24px 20px;color:#e3e8f0;text-decoration:none;transition:border-color .2s,box-shadow .2s}
.prime-rec:hover{border-color:rgba(255,255,255,0.15);box-shadow:0 4px 24px rgba(0,0,0,0.3)}
.prime-rec-ad{position:absolute;top:12px;right:14px;font-size:10px;color:#fff;opacity:0.4;pointer-events:none}
.prime-rec-label{font-size:11px;letter-spacing:0.12em;text-transform:uppercase;color:#64748b;font-weight:600}
.prime-rec-headline{font-size:18px;font-weight:700;color:#fff;line-height:1.3}
.prime-rec-body{font-size:14px;color:#94a3b8;line-height:1.55}
.prime-rec-perks{font-size:13px;color:#a1a1aa;line-height:1.5}
.prime-rec-cta{display:flex;align-items:center;justify-content:center;width:100%;height:44px;background:#06b6d4;color:#0e0e10;font-weight:700;font-size:14px;border-radius:8px;margin-top:4px;transition:background .15s}
.prime-rec:hover .prime-rec-cta{background:#22d3ee}
.prime-rec-fine{font-size:11px;color:#64748b;text-align:center}

@media (max-width:1100px){
  #app{grid-template-columns:60px 1fr 320px}
  .nav{display:none}
  .menu-btn{display:none}
}

@media (max-width:900px){
  #app{grid-template-columns:1fr}
  .sidebar,.ads{display:none}
  .topbar{justify-content:center}
  .search{flex-wrap:wrap;width:100%}
  .left-links{width:100%;justify-content:center;margin-bottom:8px}
}