/* ======= Base ======= */
:root{
  --bg:#0b0b0c;
  --panel:#121216;
  --muted:#9aa0a6;
  --text:#f5f5f7;
  --brand:#ffffff;
  --accent:#e6e6e6;
  --ring: 0 0 0 2px rgba(255,255,255,.12);
  --radius: 16px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; background:var(--bg); color:var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial, sans-serif;
}

/* ======= Layout ======= */
.container{max-width:1100px;margin:0 auto;padding:24px}
.header{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px}
.brand-logo{height:112px; width:auto; display:block}

.nav{display:flex;align-items:center;gap:10px}

/* ======= Buttons ======= */
.btn{border:0; padding:10px 14px; border-radius:999px; cursor:pointer; transition:.2s transform, .2s opacity}
.btn[disabled]{opacity:.5; cursor:not-allowed}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn.primary{background:#fff;color:#000}
.btn.ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.2)}
.btn.lg{padding:14px 18px;font-weight:600}
.btn.primary.lg{padding:18px 24px;font-size:18px;letter-spacing:.02em;box-shadow:0 8px 30px rgba(255,255,255,.12), inset 0 0 0 1px rgba(0,0,0,.25)}
.btn.sm{padding:8px 12px}
.btn.primary{transition: background 2s ease, .2s transform, .2s opacity}
/* Botón futurista */
.btn.primary{
  background:linear-gradient(90deg,#fff,#d6d6d6);
  color:#000; border:1px solid rgba(255,255,255,.2);
  position:relative; overflow:hidden;
}
.btn.primary::after{
  content:""; position:absolute; inset:-2px; border-radius:999px;
  background:linear-gradient(90deg, rgba(255,255,255,.25), rgba(255,255,255,0), rgba(255,255,255,.25));
  transform:translateX(-100%);
  transition:transform .8s ease;
}
.btn.primary:hover::after{ transform:translateX(100%); }

/* ======= Hero ======= */
.hero{
  position:relative; min-height:44vh; display:grid; place-items:center;
  border-radius:var(--radius); margin:24px auto; width:calc(100% - 48px);
  background:linear-gradient(180deg,#f39c12,#2c3e50); /* gradiente base */
  background-size:cover; background-position:center; background-repeat:no-repeat;
  background-blend-mode:multiply; /* mezcla imagen+gradiente */
  transition: background 2s ease;
  box-shadow:var(--shadow);
}
.hero-inner{padding:48px;text-align:center;backdrop-filter:saturate(120%) blur(0px);color:#fff}
.hero-logo{width:min(60vw, 540px); height:auto; margin:0 auto 12px; display:block}
.hero h2{font-size:40px;margin:0 0 8px}
.hero p{max-width:720px;margin:0 auto 16px;color:#f0f0f0}

/* ======= Cards / Grid ======= */
.card{background:var(--panel); border:1px solid rgba(255,255,255,.06); border-radius:var(--radius); padding:18px; box-shadow:var(--shadow)}
.grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:16px}
.section-title{margin:8px 0 14px}

.gen-card{
  position:relative; overflow:hidden; border-radius:14px; background:#1a1a1f;
  border:1px solid rgba(255,255,255,.06);
}
.gen-thumb{
  height:160px; background:linear-gradient(180deg,#777,#333);
  background-size:cover; background-position:center; background-repeat:no-repeat;
  background-blend-mode:multiply;
}
.gen-body{padding:12px}
.gen-row{display:flex;align-items:center;justify-content:space-between; gap:8px}
.badge{display:inline-block;padding:4px 8px;border-radius:999px;background:rgba(255,255,255,.12);color:#fff;font-size:.8em}

/* Ranking y galería */
.rank{min-height:80px}
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}
.gallery-grid .ph{height:120px;border-radius:12px;background:linear-gradient(180deg,#444,#111);background-size:cover;background-position:center;background-blend-mode:multiply;border:1px solid rgba(255,255,255,.08)}

/* Chat asesor */
.chat{display:grid;gap:10px;margin-top:8px}
.chat .msg{background:#0f0f13;border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:10px}
.chat .user{border-left:3px solid #5aa9e6}
.chat .ai{border-left:3px solid #7cd992}
.advisor .source{font-size:.85em;color:var(--muted)}
.gen-name{font-weight:600}
.gen-terp{color:var(--muted); font-size:.9em}
.gen-stock{color:#fff; opacity:.85; font-variant-numeric:tabular-nums}
.small{font-size:.85em;color:var(--muted)}

/* ======= Forms ======= */
.form{display:grid; gap:12px}
.two-col{grid-template-columns:repeat(2, minmax(0, 1fr))}
.three-col{grid-template-columns:repeat(3, minmax(0, 1fr))}
.col-span-3{grid-column:span 3}
.field{display:flex;flex-direction:column;gap:6px}
label{font-size:.9em;color:var(--muted)}
input,select,textarea{
  background:#0f0f13;color:#fff;border:1px solid rgba(255,255,255,.12);
  border-radius:12px; padding:10px 12px; outline:none;
}
input:focus,select:focus,textarea:focus{box-shadow:var(--ring)}
.icon-btn{background:transparent;border:0;color:#fff;font-size:22px;cursor:pointer}

/* ======= Modal ======= */
.modal{border:0;background:transparent}
.modal::backdrop{background:rgba(0,0,0,.55);backdrop-filter:blur(2px)}
.modal-card{max-width:980px;width:min(92vw,980px)}
.modal-logo-wrap{display:flex;justify-content:center;margin-bottom:8px}
.modal-logo{width:min(50vw, 420px); height:auto; opacity:.95}
.modal-head,.modal-foot{display:flex;align-items:center;justify-content:space-between}
.modal-head{margin-bottom:10px}
.modal-foot{gap:8px;margin-top:14px}

/* ======= Preview cromático ======= */
.preview{
  margin-top:10px; height:200px; border-radius:12px;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg,#f39c12,#2c3e50);
  background-size:cover; background-position:center; background-repeat:no-repeat;
  background-blend-mode:multiply;
  position:relative; overflow:hidden;
}
.preview-overlay{
  position:absolute; inset:0; background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400"><defs><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.9" numOctaves="2"/></filter></defs><rect width="100%" height="100%" filter="url(%23n)" opacity="0.04"/></svg>');
  pointer-events:none;
}
.preview-meta{
  position:absolute; inset:auto 12px 12px 12px; display:flex; gap:10px; align-items:center;
  background:rgba(0,0,0,.28); color:#fff; padding:8px 10px; border-radius:10px
}

/* ======= Lists ======= */
.list{display:grid;gap:8px}
.order-item{
  display:grid; grid-template-columns: 1fr auto; gap:10px; align-items:center;
  background:#0f0f13; border:1px solid rgba(255,255,255,.08); border-left:4px solid #888;
  padding:10px; border-radius:10px;
}
.order-meta small{display:inline-block;margin-right:6px;color:var(--muted)}

/* ======= Footer ======= */
.footer{opacity:.7}

/* ======= Responsive ======= */
@media (max-width: 820px){
  .container{padding:16px}
  .two-col{grid-template-columns:1fr}
  .three-col{grid-template-columns:1fr}
  .hero{width:calc(100% - 32px); margin:16px auto}
  .hero h2{font-size:30px}
  .grid{grid-template-columns:1fr}
  .nav{gap:6px}
  .btn{padding:9px 12px}
  .brand-logo{height:64px}
}

/* util */
.pointer{cursor:pointer}