:root{
    --bg: #16120e;
    --bg-alt: #1e1810;
    --bg-card: #241c14;
    --copper: #c46a3c;
    --copper-bright: #e08a55;
    --copper-deep: #7a3e22;
    --patina: #5da891;
    --patina-bright: #7fd1b8;
    --cream: #f2e9da;
    --muted: #a99a86;
    --line: rgba(242,233,218,0.1);
    --radius: 2px;
  }
  *{ box-sizing:border-box; margin:0; padding:0; }
  html{ scroll-behavior:smooth; }
  body{
    background:var(--bg);
    color:var(--cream);
    font-family:'Inter', sans-serif;
    line-height:1.6;
    overflow-x:hidden;
  }
  ::selection{ background:var(--copper); color:var(--bg); }

  h1,h2,h3{
    font-family:'Big Shoulders Display', sans-serif;
    text-transform:uppercase;
    letter-spacing:0.01em;
    line-height:0.95;
    font-weight:900;
  }
  .eyebrow{
    font-family:'JetBrains Mono', monospace;
    font-size:0.72rem;
    letter-spacing:0.18em;
    text-transform:uppercase;
    color:var(--patina-bright);
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:14px;
  }
  .eyebrow::before{
    content:"";
    width:22px; height:1px;
    background:var(--patina-bright);
  }

  a{ color:inherit; text-decoration:none; }
  .wrap{ max-width:1180px; margin:0 auto; padding:0 32px; }
  section{ position:relative; padding:110px 0; }

  /* Copper vein background texture */
  .veins{
    position:absolute; inset:0;
    pointer-events:none;
    opacity:0.35;
    z-index:0;
  }

  /* ---------- NAV ---------- */
  header{
    position:fixed; top:0; left:0; right:0; z-index:100;
    background:rgba(22,18,14,0.85);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  nav.wrap{
    display:flex; align-items:center; justify-content:space-between;
    height:76px;
    gap:14px;
  }
  .logo{
    font-family:'Big Shoulders Display', sans-serif;
    font-weight:900;
    font-size:1.35rem;
    letter-spacing:0.02em;
    display:flex; align-items:baseline; gap:8px;
    white-space:nowrap;
    flex-shrink:1;
    min-width:0;
    overflow:hidden;
    text-overflow:ellipsis;
  }
  .logo span{ color:var(--copper-bright); }
  .navlinks{ display:flex; gap:36px; }
  .navlinks a{
    font-size:0.85rem;
    font-weight:600;
    letter-spacing:0.03em;
    text-transform:uppercase;
    color:var(--muted);
    transition:color .2s;
    position:relative;
  }
  .navlinks a:hover{ color:var(--cream); }
  .navlinks a.active{ color:var(--copper-bright); }
  .nav-cta{
    background:var(--patina);
    color:#0e1512;
    padding:11px 22px;
    font-weight:700;
    font-size:0.82rem;
    letter-spacing:0.02em;
    text-transform:uppercase;
    border-radius:var(--radius);
    transition:background .2s, transform .2s;
    white-space:nowrap;
    flex-shrink:0;
  }
  .nav-cta:hover{ background:var(--patina-bright); transform:translateY(-1px); }
  .navburger{ display:none; }

  /* ---------- HERO ---------- */
  .hero{
    padding:190px 0 120px;
    background:
      radial-gradient(ellipse 900px 500px at 15% 0%, rgba(196,106,60,0.18), transparent 60%),
      radial-gradient(ellipse 700px 500px at 100% 30%, rgba(93,168,145,0.10), transparent 60%),
      var(--bg);
  }
  .hero-grid{
    display:grid;
    grid-template-columns:1.05fr 0.95fr;
    gap:60px;
    align-items:center;
  }
  .hero h1{
    font-size:clamp(2.6rem, 5.2vw, 4.6rem);
    margin-bottom:26px;
  }
  .hero h1 em{
    font-style:normal;
    color:var(--copper-bright);
    -webkit-text-stroke:0;
  }
  .hero p.lead{
    font-size:1.08rem;
    color:var(--muted);
    max-width:480px;
    margin-bottom:36px;
  }
  .hero-ctas{ display:flex; gap:16px; flex-wrap:wrap; }
  .btn{
    display:inline-flex; align-items:center; gap:10px;
    padding:15px 28px;
    font-weight:700;
    font-size:0.88rem;
    letter-spacing:0.02em;
    text-transform:uppercase;
    border-radius:var(--radius);
    transition:transform .2s, background .2s, border-color .2s;
    border:1px solid transparent;
  }
  .btn-primary{ background:var(--copper); color:#1a0f08; }
  .btn-primary:hover{ background:var(--copper-bright); transform:translateY(-2px); }
  .btn-ghost{ border-color:var(--line); color:var(--cream); }
  .btn-ghost:hover{ border-color:var(--copper-bright); color:var(--copper-bright); }

  .hero-stats{
    display:flex; gap:34px; margin-top:52px;
    font-family:'JetBrains Mono', monospace;
  }
  .hero-stats div b{
    display:block; font-family:'Big Shoulders Display', sans-serif;
    font-size:1.6rem; color:var(--patina-bright); font-weight:700;
  }
  .hero-stats div span{ font-size:0.72rem; color:var(--muted); text-transform:uppercase; letter-spacing:0.05em; }

  /* NFC card mockup */
  .card-stage{
    position:relative;
    height:460px;
    display:flex; align-items:center; justify-content:center;
    perspective:1200px;
  }
  .nfc-card{
    width:340px; height:210px;
    border-radius:16px;
    background:linear-gradient(135deg, #d97e4c 0%, #a3562f 45%, #6b3319 100%);
    position:relative;
    box-shadow:0 40px 80px -20px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.06) inset;
    transform:rotateY(-18deg) rotateX(8deg);
    animation:float 6s ease-in-out infinite;
    padding:26px;
    overflow:hidden;
  }
  .nfc-card::after{
    content:"";
    position:absolute; inset:0;
    background:linear-gradient(115deg, transparent 40%, rgba(255,255,255,0.22) 50%, transparent 60%);
    background-size:250% 250%;
    animation:shine 4.5s ease-in-out infinite;
  }
  @keyframes shine{
    0%{ background-position:200% 0; }
    55%,100%{ background-position:-40% 0; }
  }
  @keyframes float{
    0%,100%{ transform:rotateY(-18deg) rotateX(8deg) translateY(0); }
    50%{ transform:rotateY(-14deg) rotateX(6deg) translateY(-14px); }
  }
  .nfc-card .brand{
    font-family:'Big Shoulders Display', sans-serif;
    font-weight:900; font-size:1.15rem; color:#f2e9da;
    letter-spacing:0.02em;
  }
  .nfc-card .brand span{ color:#1a0f08; }
  .nfc-card .chip{
    width:42px; height:32px; border-radius:6px; margin-top:34px;
    background:linear-gradient(135deg, #e8d7b8, #b89a6c);
  }
  .nfc-card .wave{
    position:absolute; top:26px; right:26px;
    width:28px; height:28px; opacity:0.9;
  }
  .nfc-card .name{
    position:absolute; bottom:24px; left:26px;
    font-family:'JetBrains Mono', monospace;
    font-size:0.72rem; letter-spacing:0.08em; color:rgba(242,233,218,0.85);
    text-transform:uppercase;
  }
  .card-glow{
    position:absolute; width:420px; height:420px; border-radius:50%;
    background:radial-gradient(circle, rgba(196,106,60,0.25), transparent 70%);
    filter:blur(10px);
    z-index:-1;
  }
  .tap-ping{
    position:absolute; right:6%; bottom:8%;
    width:64px; height:64px; border-radius:50%;
    border:1px solid var(--patina-bright);
    animation:ping 2.4s ease-out infinite;
  }
  @keyframes ping{
    0%{ transform:scale(0.4); opacity:0.9; }
    100%{ transform:scale(1.6); opacity:0; }
  }

  /* ---------- SECTION HEADS ---------- */
  .section-head{ max-width:640px; margin-bottom:64px; }
  .section-head h2{ font-size:clamp(1.9rem, 3.4vw, 2.8rem); }
  .section-head p{ color:var(--muted); margin-top:16px; font-size:1rem; }

  /* ---------- COMO FUNCIONA ---------- */
  .steps{
    display:grid; grid-template-columns:repeat(3,1fr); gap:2px;
    background:var(--line); border:1px solid var(--line);
  }
  .step{
    background:var(--bg); padding:40px 34px;
    position:relative;
  }
  .step .num{
    font-family:'JetBrains Mono', monospace;
    color:var(--copper-bright); font-size:0.8rem; margin-bottom:22px; display:block;
  }
  .step h3{ font-size:1.35rem; margin-bottom:12px; text-transform:none; font-weight:700; font-family:'Inter',sans-serif; }
  .step p{ color:var(--muted); font-size:0.92rem; }

  /* ---------- CATALOGO ---------- */
  #catalogo{ background:var(--bg-alt); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
  .grid-products{
    display:grid; grid-template-columns:repeat(3, 1fr); gap:24px;
  }
  .product-card{
    background:var(--bg-card);
    border:1px solid var(--line);
    padding:30px 26px 26px;
    border-radius:var(--radius);
    transition:transform .25s, border-color .25s;
    position:relative;
  }
  .product-card:hover{ transform:translateY(-6px); border-color:var(--copper); }
  .product-thumb{
    height:120px; border-radius:6px; margin-bottom:22px;
    display:flex; align-items:center; justify-content:center;
    font-family:'Big Shoulders Display', sans-serif;
    font-weight:900; font-size:1.1rem; color:rgba(242,233,218,0.5);
  }
  .thumb-1{ background:linear-gradient(135deg,#c46a3c,#7a3e22); }
  .thumb-2{ background:linear-gradient(135deg,#8f8f92,#43434a); }
  .thumb-3{ background:linear-gradient(135deg,#4b4038,#241c14); }
  .thumb-4{ background:linear-gradient(135deg,#5da891,#2c4d43); }
  .thumb-5{ background:linear-gradient(135deg,#c46a3c,#5da891); }
  .thumb-6{ background:linear-gradient(135deg,#7a3e22,#c46a3c); }
  .product-card h3{
    text-transform:none; font-family:'Inter',sans-serif; font-weight:700;
    font-size:1.08rem; margin-bottom:8px;
  }
  .product-card p{ color:var(--muted); font-size:0.88rem; margin-bottom:18px; min-height:44px; }
  .product-foot{
    display:flex; align-items:center; justify-content:space-between;
    border-top:1px solid var(--line); padding-top:16px;
  }
  .price{ font-family:'JetBrains Mono', monospace; color:var(--patina-bright); font-size:0.85rem; }
  .tag{
    font-family:'JetBrains Mono', monospace; font-size:0.68rem;
    color:var(--copper-bright); border:1px solid var(--copper-deep);
    padding:3px 8px; border-radius:20px; text-transform:uppercase;
  }

  /* ---------- DISEÑO GRAFICO ---------- */
  .design-split{
    display:grid; grid-template-columns:1fr 1fr; gap:70px; align-items:center;
  }
  .swatches{
    display:grid; grid-template-columns:repeat(3,1fr); gap:14px;
  }
  .swatch{
    aspect-ratio:1; border-radius:6px; position:relative; overflow:hidden;
    display:flex; align-items:flex-end; padding:12px;
    font-family:'JetBrains Mono', monospace; font-size:0.68rem; color:rgba(255,255,255,0.75);
  }
  .sw-1{ background:linear-gradient(160deg,#c46a3c,#8f4626); }
  .sw-2{ background:linear-gradient(160deg,#5da891,#2c4d43); }
  .sw-3{ background:linear-gradient(160deg,#e0c9a6,#a99a86); }
  .sw-4{ background:linear-gradient(160deg,#241c14,#0d0a07); }
  .sw-5{ background:linear-gradient(160deg,#e08a55,#c46a3c); }
  .sw-6{ background:linear-gradient(160deg,#7fd1b8,#5da891); }
  .service-list{ list-style:none; margin-top:28px; }
  .service-list li{
    display:flex; gap:14px; padding:16px 0; border-bottom:1px solid var(--line);
    font-size:0.96rem;
  }
  .service-list li::before{
    content:"◆"; color:var(--patina-bright); font-size:0.7rem; margin-top:5px;
  }
  .service-list b{ display:block; margin-bottom:2px; }
  .service-list span{ color:var(--muted); font-size:0.88rem; }

  /* ---------- CONTACTO ---------- */
  #contacto{ background:var(--bg-alt); border-top:1px solid var(--line); }
  .contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:70px; }
  .contact-info .item{ margin-bottom:28px; }
  .contact-info .item .lbl{
    font-family:'JetBrains Mono', monospace; font-size:0.72rem; color:var(--patina-bright);
    text-transform:uppercase; letter-spacing:0.08em; margin-bottom:6px; display:block;
  }
  .contact-info .item .val{ font-size:1.1rem; font-weight:600; }
  form{ display:flex; flex-direction:column; gap:16px; }
  form input, form select, form textarea{
    background:var(--bg-card); border:1px solid var(--line); color:var(--cream);
    padding:14px 16px; font-family:'Inter',sans-serif; font-size:0.92rem; border-radius:var(--radius);
    outline:none; transition:border-color .2s;
  }
  form input:focus, form select:focus, form textarea:focus{ border-color:var(--copper); }
  form textarea{ resize:vertical; min-height:100px; }
  form button{
    background:var(--copper); color:#1a0f08; border:none; padding:16px;
    font-weight:700; text-transform:uppercase; letter-spacing:0.03em; font-size:0.88rem;
    border-radius:var(--radius); cursor:pointer; transition:background .2s;
  }
  form button:hover{ background:var(--copper-bright); }
  .form-note{ font-size:0.78rem; color:var(--muted); }

  footer{
    padding:40px 0; border-top:1px solid var(--line);
    display:flex; justify-content:space-between; align-items:center;
    font-size:0.8rem; color:var(--muted);
  }

  @media(max-width:880px){
    .hero-grid, .design-split, .contact-grid{ grid-template-columns:1fr; }
    .steps{ grid-template-columns:1fr; }
    .grid-products{ grid-template-columns:1fr 1fr; }
    .navlinks{ display:none; }
    .card-stage{ height:320px; margin-top:20px;}
    .nfc-card{ width:280px; height:174px; }
  }
  @media(max-width:560px){
    .grid-products{ grid-template-columns:1fr; }
    section{ padding:70px 0; }
    .hero{ padding-top:150px; }
  }
  @media(max-width:480px){
    .wrap{ padding:0 18px; }
    nav.wrap{ height:64px; }
    .logo{ font-size:1rem; }
    .nav-cta{ padding:9px 14px; font-size:0.7rem; }
    .hero{ padding-top:120px; }
    .hero-ctas{ flex-direction:column; align-items:stretch; }
    .hero-ctas .btn{ justify-content:center; }
    .hero-stats{ flex-wrap:wrap; gap:22px 30px; }
  }