/* Sterenna Gravure — Spleen minimal */
:root{
  --paper:#101012; --paper-2:#15161A; --panel:#15161A;
  --ink:#EDE7DF; --ink-2:#CFC6BD; --muted:#A79E96;
  --copper:#C08A5A; --copper-2:#A47145; --outline:#2A2930;
  --radius:18px; --shadow:0 14px 42px rgba(0,0,0,.38)
}
*{box-sizing:border-box} html{font-size:18px} @media (max-width:420px){html{font-size:17px}}
body{
  margin:0;min-height:100svh;color:var(--ink);background:var(--paper);
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;line-height:1.65
}
a{color:#EAD3C4;text-decoration:none} a:hover{text-decoration:underline}
.container{max-width:1100px;margin-inline:auto;padding:24px}
header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:10px}
.logo{font-weight:800;letter-spacing:.04em;color:var(--ink);text-transform:uppercase}
.nav{display:flex;gap:14px;flex-wrap:wrap}
.nav a{color:var(--ink-2);padding:.35rem .6rem;border-radius:10px}
.nav a.active,.nav a:hover{background:rgba(255,255,255,.04);color:var(--ink)}
.card{background:linear-gradient(180deg, rgba(255,255,255,.015), rgba(0,0,0,0)),var(--panel);
  border:1px solid var(--outline);border-radius:var(--radius);padding:clamp(16px,4vw,26px);box-shadow:var(--shadow)}
h1{margin:.2rem 0 .6rem 0;font-size:clamp(1.4rem,3.6vw,2.2rem);line-height:1.2}
h2{margin:.2rem 0 .4rem 0;font-size:clamp(1.2rem,3vw,1.6rem)}
.sub{color:var(--ink-2);margin:.1rem 0 .6rem 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:46px;
     padding:.6rem .9rem;border-radius:14px;border:1px solid transparent;font-weight:700;text-decoration:none}
.btn-primary{background:linear-gradient(180deg,var(--copper),var(--copper-2));color:#141316}
.btn-outline{background:transparent;color:var(--ink);border-color:#6E5A47}
.grid{display:grid;gap:18px}
@media (min-width:940px){ .grid-2{grid-template-columns:1.2fr .8fr} .grid-3{grid-template-columns:repeat(3,1fr)} .grid-4{grid-template-columns:repeat(4,1fr)}}
footer{margin-top:16px;color:var(--ink-2);font-size:.95rem;display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between}
hr{border:none;height:1px;background:var(--outline);margin:16px 0}
.small{font-size:.93rem;color:var(--muted)}
/* Shelf pseudo-3D */
.shelf-wrap{perspective:1000px}
.shelf{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;transform-style:preserve-3d;transition:transform .2s}
.product{background:var(--panel);border:1px solid var(--outline);border-radius:16px;box-shadow:var(--shadow);padding:12px;transform:translateZ(0);
  transition:transform .15s}
.product:hover{transform:translateY(-4px) scale(1.01)}
.p-img{aspect-ratio:4/3;background:var(--paper-2);border:1px solid var(--outline);border-radius:12px;margin-bottom:8px;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.p-title{font-weight:700;margin:0 0 4px 0}
.p-price{color:var(--ink-2);margin:0 0 8px 0}
/* Configurator */
.controls{display:flex;flex-wrap:wrap;gap:10px;margin:.5rem 0}
.select, .input, .range{min-height:42px;border:1px solid var(--outline);border-radius:12px;padding:.4rem .6rem;background:var(--paper-2);color:var(--ink)}
.canvas-wrap{display:grid;gap:12px}
.preview-pane{display:grid;gap:12px}
.material{padding:.3rem .6rem;border:1px solid var(--outline);border-radius:999px;background:transparent;color:var(--ink-2);cursor:pointer}
.material.active{background:rgba(255,255,255,.05);color:var(--ink)}
.surface{min-height:300px;border:1px dashed var(--outline);border-radius:16px;display:grid;place-items:center;padding:12px}
.surface.wood{background:
  repeating-linear-gradient(90deg,#3b2a1e 0,#3b2a1e 6px,#4a3425 6px,#4a3425 12px,#5b3d28 12px,#5b3d28 18px)}
.surface.zinc{background:
  repeating-linear-gradient(0deg,#2C2E33 0,#2C2E33 2px,#30333A 2px,#30333A 4px)}
.surface.vinyl{background:
  repeating-radial-gradient(circle at 50% 50%, #0b0b0c 0 1px, #101012 1px 3px)}
.surface.slate{background:
  repeating-linear-gradient(45deg,#1b1d22 0,#1b1d22 10px,#21242a 10px,#21242a 20px)}
.canvas{max-width:100%;background:#000;border-radius:12px}
.badge{display:inline-block;padding:.2rem .5rem;border:1px solid var(--outline);border-radius:999px;font-size:.8rem;color:var(--ink-2)}
/* Forms */
label{display:block;margin:.2rem 0 .2rem 0}
input[type="file"]{display:block}
fieldset{border:1px solid var(--outline);border-radius:12px;padding:12px}
legend{padding:0 .4rem;color:var(--ink-2)}
.success{background:#19321e;border:1px solid #255b2c;color:#cfe9d1;border-radius:12px;padding:10px}
.warn{background:#312016;border:1px solid #7a4f34;color:#f1dacb;border-radius:12px;padding:10px}