:root{
    --navy:#2A2A78;
    --navy-ink:#1E1E5C;
    --ink:#14152A;
    --steel:#EEF0F5;
    --steel-2:#E2E5EF;
    --line:#CDD2E0;
    --paper:#FFFFFF;
    --safety:#F5AF00;
    --safety-ink:#7A5400;
    --muted:#565B78;
    --radius:14px;
    --shadow: 0 1px 2px rgba(20,21,42,.06), 0 8px 24px -12px rgba(20,21,42,.18);
  }
  :root[data-theme="dark"]{
    --navy:#7D7FF0;
    --navy-ink:#AEB0FF;
    --ink:#EEEFF7;
    --steel:#12132A;
    --steel-2:#1A1C3A;
    --line:#33365C;
    --paper:#1C1E3E;
    --safety:#F5B400;
    --safety-ink:#2A1E00;
    --muted:#A6ABD1;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 28px -12px rgba(0,0,0,.6);
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--steel);
    color:var(--ink);
    font-family:"IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
    -webkit-font-smoothing:antialiased;
    line-height:1.55;
  }
  h1,h2,h3,.disp{
    font-family:"Big Shoulders Display","Arial Narrow",sans-serif;
    font-weight:800;
    text-transform:uppercase;
    letter-spacing:.01em;
    text-wrap:balance;
    line-height:.98;
    color:var(--ink);
    margin:0;
  }
  .mono, .spec dd, .spec dt, .kicker, .tag, .navlink, .idx td, .idx th{
    font-family:"IBM Plex Mono", ui-monospace, monospace;
  }
  .mono{ font-variant-numeric: tabular-nums; }
  p{ margin:0; }
  a{ color:inherit; }
  img{ display:block; max-width:100%; }
  :focus-visible{ outline:3px solid var(--safety); outline-offset:2px; }
  ::selection{ background:var(--safety); color:#1a1400; }

  .wrap{ max-width:1180px; margin:0 auto; padding:0 28px; }
  @media (max-width:640px){ .wrap{ padding:0 18px; } }

  /* ---------- NAV ---------- */
  .nav{
    position:sticky; top:0; z-index:50;
    background:color-mix(in srgb, var(--paper) 88%, transparent);
    backdrop-filter: blur(10px);
    border-bottom:1px solid var(--line);
  }
  .nav .wrap{ display:flex; align-items:center; gap:28px; height:108px; }
  .brand{ display:flex; align-items:center; gap:12px; flex-shrink:0; text-decoration:none; }
  .brand img{ height:80px; width:auto; border-radius:10px; object-fit:contain; }
  .brand span{ display:none; }
  @media (max-width:640px){ .brand img{ height:56px; } .nav .wrap{ height:80px; } }
  .navlinks{ display:flex; gap:22px; margin-left:8px; flex:1; }
  .navlinks a{
    font-size:.82rem; text-transform:uppercase; letter-spacing:.06em;
    color:var(--muted); text-decoration:none; white-space:nowrap;
  }
  .navlinks a:hover{ color:var(--navy); }
  .btn{
    display:inline-flex; align-items:center; gap:9px;
    padding:11px 20px; border-radius:999px; font-weight:700;
    font-size:.88rem; text-decoration:none; white-space:nowrap;
    border:1px solid transparent; cursor:pointer;
  }
  .btn-safety{ background:var(--safety); color:#241a00; }
  .btn-safety:hover{ filter:brightness(1.06); }
  .btn-outline{ background:transparent; border-color:var(--line); color:var(--ink); }
  .btn-outline:hover{ border-color:var(--navy); }
  @media (max-width:860px){ .navlinks{ display:none; } }

  .menu-btn{
    display:none; align-items:center; justify-content:center;
    width:44px; height:44px; flex-shrink:0; border-radius:10px;
    border:1px solid var(--line); background:var(--paper); cursor:pointer;
    padding:0;
  }
  .menu-btn span{
    display:block; width:20px; height:2px; background:var(--ink);
    position:relative; transition:background .15s;
  }
  .menu-btn span::before, .menu-btn span::after{
    content:""; position:absolute; left:0; width:20px; height:2px; background:var(--ink);
    transition:transform .18s ease;
  }
  .menu-btn span::before{ top:-6px; }
  .menu-btn span::after{ top:6px; }
  .menu-btn[aria-expanded="true"] span{ background:transparent; }
  .menu-btn[aria-expanded="true"] span::before{ top:0; transform:rotate(45deg); }
  .menu-btn[aria-expanded="true"] span::after{ top:0; transform:rotate(-45deg); }
  @media (max-width:860px){ .menu-btn{ display:inline-flex; } }

  .mobile-menu{
    display:none; flex-direction:column;
    position:absolute; top:100%; left:0; right:0;
    background:var(--paper); border-bottom:1px solid var(--line);
    box-shadow:var(--shadow); padding:8px 18px 18px;
  }
  .mobile-menu.open{ display:flex; }
  .mobile-menu a{
    padding:14px 4px; font-size:.95rem; font-weight:600; color:var(--ink);
    text-decoration:none; border-bottom:1px solid var(--line);
  }
  .mobile-menu a:last-of-type{ border-bottom:none; }
  .mobile-menu .btn{ margin-top:14px; justify-content:center; }
  @media (min-width:861px){ .mobile-menu{ display:none !important; } }

  /* ---------- HERO ---------- */
  .hero{ padding:56px 0 40px; }
  .hero-grid{ display:grid; grid-template-columns:1.05fr 1fr; gap:52px; align-items:center; }
  @media (max-width:940px){ .hero-grid{ grid-template-columns:1fr; gap:36px; } }
  .kicker{
    display:inline-flex; align-items:center; gap:8px;
    font-size:.74rem; letter-spacing:.14em; text-transform:uppercase;
    color:var(--navy); font-weight:600; margin-bottom:16px;
  }
  .kicker::before{ content:""; width:22px; height:2px; background:var(--safety); display:block; }
  .hero h1{ font-size:clamp(2.4rem, 5vw, 4rem); }
  .hero h1 em{ font-style:normal; color:var(--navy); }
  .hero-sub{ margin-top:18px; max-width:46ch; color:var(--muted); font-size:1.05rem; }
  .hero-cta{ display:flex; gap:12px; margin-top:30px; flex-wrap:wrap; }

  .stat-strip{ display:flex; gap:0; margin-top:38px; border-top:1px solid var(--line); }
  .stat{ flex:1; padding:16px 18px 0; border-left:1px solid var(--line); }
  .stat:first-child{ border-left:none; padding-left:0; }
  .stat b{ display:block; font-family:"Big Shoulders Display",sans-serif; font-size:1.7rem; font-weight:800; }
  .stat span{ font-size:.76rem; color:var(--muted); text-transform:uppercase; letter-spacing:.04em; }
  @media (max-width:640px){ .stat-strip{ flex-wrap:wrap; } .stat{ flex:1 1 45%; border-left:none; border-top:1px solid var(--line); padding:14px 0 0; } .stat:first-child{border-top:none;} }

  /* hero product panel with annotations */
  .hero-panel{
    position:relative; background:var(--paper); border:1px solid var(--line);
    border-radius:20px; box-shadow:var(--shadow); overflow:hidden;
  }
  .hero-panel img{ width:100%; display:block; }
  .callout{
    position:absolute; display:flex; align-items:center; gap:8px;
    font-size:.72rem; z-index:2;
  }
  .callout .dot{ width:9px; height:9px; border-radius:50%; background:var(--safety); border:2px solid #241a00; flex-shrink:0; }
  .callout .card{
    background:var(--ink); color:var(--steel);
    padding:6px 10px; border-radius:8px; white-space:nowrap;
    box-shadow:0 4px 10px rgba(0,0,0,.25);
  }
  .callout .card b{ color:var(--safety); }
  .c1{ top:8%; left:6%; }
  .c2{ top:20%; right:5%; flex-direction:row-reverse; }
  .c3{ bottom:14%; left:8%; }
  .c4{ bottom:6%; right:6%; flex-direction:row-reverse; }
  @media (max-width:560px){ .callout .card{ font-size:.62rem; padding:5px 7px; } }
  .hero-panel-foot{
    display:flex; justify-content:space-between; align-items:center;
    padding:12px 18px; border-top:1px solid var(--line); font-size:.78rem; color:var(--muted);
  }

  /* ---------- SECTION HEADERS ---------- */
  section{ padding:64px 0; }
  .sec-head{ display:flex; justify-content:space-between; align-items:flex-end; gap:24px; margin-bottom:34px; flex-wrap:wrap; }
  .sec-head h2{ font-size:clamp(1.7rem,3.4vw,2.5rem); }
  .sec-num{ font-family:"IBM Plex Mono",monospace; color:var(--muted); font-size:.85rem; }
  .sec-desc{ max-width:56ch; color:var(--muted); margin-top:10px; }
  .divider{ height:1px; background:var(--line); border:none; margin:0; }

  /* ---------- QUICK SPEC INDEX TABLE ---------- */
  .idx-wrap{ overflow-x:auto; border:1px solid var(--line); border-radius:var(--radius); background:var(--paper); box-shadow:var(--shadow); }
  table.idx{ width:100%; border-collapse:collapse; min-width:680px; font-size:.86rem; }
  .idx th{ text-align:left; font-weight:600; color:var(--muted); text-transform:uppercase; letter-spacing:.05em; font-size:.7rem; padding:14px 16px; border-bottom:1px solid var(--line); }
  .idx td{ padding:14px 16px; border-bottom:1px solid var(--line); }
  .idx tr:last-child td{ border-bottom:none; }
  .idx td.name{ font-family:"IBM Plex Sans",sans-serif; font-weight:600; }
  .idx tr:hover td{ background:var(--steel); }
  .idx .num{ text-align:right; }

  /* ---------- PRODUCT CARDS ---------- */
  .grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
  @media (max-width:940px){ .grid{ grid-template-columns:repeat(2,1fr); } }
  @media (max-width:640px){ .grid{ grid-template-columns:1fr; } }
  .grid.two{ grid-template-columns:repeat(2,1fr); }
  @media (max-width:760px){ .grid.two{ grid-template-columns:1fr; } }

  .card{
    background:var(--paper); border:1px solid var(--line); border-radius:var(--radius);
    overflow:hidden; box-shadow:var(--shadow); display:flex; flex-direction:column;
  }
  .card figure{ margin:0; aspect-ratio:3/4; overflow:hidden; background:var(--steel-2); cursor:zoom-in; position:relative; }
  .card figure img{ width:100%; height:100%; object-fit:contain; object-position:center; transition:transform .35s ease; }
  .card:hover figure img{ transform:scale(1.03); }
  .card figure::after{ content:"Ver ficha completa"; position:absolute; right:10px; bottom:10px; background:var(--ink); color:var(--steel); font-family:"IBM Plex Mono",monospace; font-size:.66rem; padding:5px 9px; border-radius:6px; opacity:.85; }
  .card-body{ padding:20px; display:flex; flex-direction:column; gap:14px; flex:1; }
  .card h3{ font-size:1.28rem; }
  .card .dims{ font-size:.78rem; color:var(--muted); }
  dl.spec{ margin:0; display:grid; grid-template-columns:1fr auto; gap:6px 12px; font-size:.8rem; border-top:1px solid var(--line); padding-top:12px; }
  dl.spec dt{ color:var(--muted); font-weight:400; }
  dl.spec dd{ margin:0; text-align:right; font-weight:600; }
  dl.spec dd.hi{ color:var(--navy); }
  .card-foot{ margin-top:auto; display:flex; gap:10px; padding-top:4px; }
  .card-foot .btn{ flex:1; justify-content:center; padding:10px 14px; font-size:.8rem; }

  /* ---------- FEATURES ---------- */
  .feat-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; }
  @media (max-width:860px){ .feat-grid{ grid-template-columns:repeat(2,1fr); } }
  .feat{ background:var(--paper); padding:26px 22px; }
  .feat .n{ font-family:"IBM Plex Mono",monospace; color:var(--safety-ink); background:var(--safety); display:inline-flex; align-items:center; justify-content:center; width:30px; height:30px; border-radius:8px; font-weight:700; font-size:.85rem; margin-bottom:14px; }
  .feat h3{ font-size:1.05rem; text-transform:none; letter-spacing:0; font-family:"IBM Plex Sans",sans-serif; font-weight:700; }
  .feat p{ margin-top:8px; font-size:.86rem; color:var(--muted); }

  /* ---------- ABOUT ---------- */
  .about{ background:var(--navy); color:#fff; border-radius:24px; padding:52px; position:relative; overflow:hidden; }
  .about::after{ content:""; position:absolute; inset:0; background:
      radial-gradient(600px 300px at 90% -10%, rgba(245,175,0,.18), transparent 60%);
    pointer-events:none; }
  .about-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:40px; position:relative; }
  @media (max-width:860px){ .about-grid{ grid-template-columns:1fr; } .about{ padding:34px 22px; } }
  .about h2{ color:#fff; font-size:clamp(1.7rem,3.2vw,2.3rem); }
  .about p{ color:#D6D7F5; margin-top:16px; max-width:52ch; }
  .about-list{ list-style:none; margin:22px 0 0; padding:0; display:grid; gap:12px; }
  .about-list li{ display:flex; gap:10px; font-size:.92rem; color:#EDEDFF; }
  .about-list li::before{ content:"—"; color:var(--safety); flex-shrink:0; }
  .about-card{ background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.18); border-radius:16px; padding:24px; align-self:start; }
  .about-card .row{ display:flex; justify-content:space-between; padding:10px 0; border-bottom:1px solid rgba(255,255,255,.14); font-size:.88rem; }
  .about-card .row:last-child{ border-bottom:none; }
  .about-card .row span:first-child{ color:#B9BAF0; }
  .about-card .row span:last-child{ font-family:"IBM Plex Mono",monospace; text-align:right; }

  /* ---------- CONTACT ---------- */
  .contact-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:24px; }
  @media (max-width:860px){ .contact-grid{ grid-template-columns:1fr; } }
  .contact-main{ background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow); padding:34px; }
  .contact-main h2{ font-size:1.9rem; }
  .contact-main p{ color:var(--muted); margin-top:12px; max-width:48ch; }
  .contact-actions{ display:flex; gap:12px; margin-top:26px; flex-wrap:wrap; }
  .contact-side{ display:grid; gap:16px; }
  .info-card{ background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); padding:22px; box-shadow:var(--shadow); }
  .info-card .lbl{ font-size:.7rem; text-transform:uppercase; letter-spacing:.08em; color:var(--muted); }
  .info-card .val{ font-family:"IBM Plex Mono",monospace; font-size:1.02rem; margin-top:6px; }
  .info-card a.val{ text-decoration:none; }
  .info-card a.val:hover{ color:var(--navy); }

  /* ---------- FOOTER ---------- */
  footer{ border-top:1px solid var(--line); padding:34px 0 46px; }
  .foot-row{ display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap; font-size:.82rem; color:var(--muted); }
  .foot-brand{ display:flex; align-items:center; gap:12px; text-decoration:none; }
  .foot-brand img{ height:52px; width:auto; border-radius:8px; object-fit:contain; }
  .foot-brand span{ display:none; }

  /* lightbox */
  .lb-overlay{ position:fixed; inset:0; background:rgba(10,10,20,.82); display:none; align-items:center; justify-content:center; z-index:100; padding:24px; }
  .lb-overlay.open{ display:flex; }
  .lb-overlay img{ max-width:min(560px,92vw); max-height:88vh; border-radius:10px; box-shadow:0 20px 60px rgba(0,0,0,.5); }
  .lb-close{ position:absolute; top:20px; right:26px; color:#fff; font-size:1.6rem; background:none; border:none; cursor:pointer; line-height:1; }

  @media (prefers-reduced-motion: reduce){ *{ animation:none !important; transition:none !important; } html{scroll-behavior:auto;} }

  /* ---------- THEME TOGGLE ---------- */
  .theme-btn{
    display:inline-flex; align-items:center; justify-content:center;
    width:44px; height:44px; flex-shrink:0; border-radius:50%;
    border:1px solid var(--line); background:var(--paper); color:var(--ink);
    cursor:pointer; padding:0;
  }
  .theme-btn:hover{ border-color:var(--navy); }
  .theme-btn svg{ width:20px; height:20px; fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
  .theme-btn .i-sun{ display:none; }
  :root[data-theme="dark"] .theme-btn .i-sun{ display:block; }
  :root[data-theme="dark"] .theme-btn .i-moon{ display:none; }
  @media (max-width:640px){ .nav .wrap{ gap:10px; } }

  /* ---------- LOGO POR TEMA ---------- */
  .brand img.logo-dark, .foot-brand img.logo-dark{ display:none; }
  .brand img.logo-light, .foot-brand img.logo-light{ display:block; }
  :root[data-theme="dark"] .brand img.logo-light,
  :root[data-theme="dark"] .foot-brand img.logo-light{ display:none; }
  :root[data-theme="dark"] .brand img.logo-dark,
  :root[data-theme="dark"] .foot-brand img.logo-dark{ display:block; }

  /* ---------- NAV MÓVIL: botones a la derecha ---------- */
  @media (max-width:860px){
    .brand{ margin-right:auto; }
  }