/* ============================================================
   HYDROTEK — Propuesta de rediseño (demo de presentación)
   Concepto: laboratorio premium / tech. Negro profundo + dorado
   (fiel al isotipo real) + acento azul eléctrico (agua/circuito,
   tomado del banner de marca existente).
   ============================================================ */

:root{
  --bg: #05070a;
  --bg-soft: #090c11;
  --surface: #0d1119;
  --surface-2: #131926;
  --border: rgba(212, 175, 55, 0.16);
  --border-strong: rgba(212, 175, 55, 0.38);

  --gold: #d9b24c;
  --gold-strong: #f0c95c;
  --gold-dim: #8a6f2c;
  --gold-glow: rgba(217, 178, 76, 0.5);
  --blue: #3fb6ff;
  --blue-strong: #63c8ff;
  --blue-glow: rgba(63, 182, 255, 0.45);

  --text: #f2efe6;
  --text-dim: #a9a494;
  --text-mute: #6c6a60;

  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;

  --shadow-soft: 0 10px 40px rgba(0,0,0,0.55);
  --transition: .25s cubic-bezier(.4,0,.2,1);

  --font-head: 'Orbitron', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; }
/* El atributo hidden debe ganarle siempre a display:flex/grid de otras
   clases (stepper, admin-field-row, etc.) — si no, el elemento "oculto"
   sigue ocupando lugar y siendo clickeable. */
[hidden]{ display:none !important; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height:1.5;
  overflow-x:hidden;
}
h1,h2,h3,h4{ font-family: var(--font-head); margin:0 0 .4em; line-height:1.2; letter-spacing:.2px; }
p{ margin:0 0 1em; color:var(--text-dim); }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
button{ font-family:inherit; cursor:pointer; }
img{ max-width:100%; display:block; }
table{ border-collapse:collapse; width:100%; }

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Demo flag ---------- */
.demo-flag{
  margin:0; text-align:center; font-size:.72rem; letter-spacing:.3px;
  padding:7px 14px; background:#000; color: var(--gold);
  border-bottom:1px solid var(--border); font-weight:600;
}

/* ---------- Reveal on scroll ---------- */
.reveal{ opacity:0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible{ opacity:1; transform:none; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 22px;
  border-radius: 999px;
  font-weight:600;
  font-size:.95rem;
  border:1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  white-space:nowrap;
}
.btn:active{ transform: scale(.97); }
.btn--primary{
  background: linear-gradient(135deg, var(--gold-strong) 0%, var(--gold-dim) 100%);
  color:#160f02;
  box-shadow: 0 8px 24px -6px var(--gold-glow);
}
.btn--primary:hover{ box-shadow: 0 8px 30px -4px var(--gold-glow); transform: translateY(-2px); }
.btn--outline{
  background: rgba(255,255,255,0.03);
  border-color: var(--border-strong);
  color: var(--text);
  backdrop-filter: blur(6px);
}
.btn--outline:hover{ border-color: var(--gold); color:var(--gold-strong); }
.btn--ghost{
  background:transparent; color:var(--text-dim); border-color:var(--border);
}
.btn--ghost:hover{ color:var(--text); border-color:var(--border-strong); }
.btn--lg{ padding:16px 30px; font-size:1.05rem; }
.btn--block{ width:100%; justify-content:center; }

/* ---------- Header ---------- */
.header{
  position:sticky; top:0; z-index:100;
  background: rgba(5,7,10,0.75);
  backdrop-filter: blur(14px);
  border-bottom:1px solid var(--border);
}
.header__inner{ display:flex; align-items:center; gap:24px; padding:12px 24px; }
.brand{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.brand__logo{ border-radius:50%; filter: drop-shadow(0 0 10px var(--gold-glow)); }
.brand__name{ font-family:var(--font-head); font-weight:700; font-size:1.15rem; letter-spacing:.5px; color:var(--gold-strong); }
.brand__reg{ font-size:.6em; vertical-align:super; color:var(--text-mute); }

.nav{ display:flex; gap:4px; flex:1; overflow-x:auto; scrollbar-width:none; }
.nav::-webkit-scrollbar{ display:none; }
.nav__link{
  padding:9px 14px; border-radius:999px; font-size:.85rem; font-weight:500;
  color:var(--text-dim); white-space:nowrap; transition: color var(--transition), background var(--transition);
}
.nav__link:hover{ color:var(--text); background: rgba(255,255,255,0.04); }
.nav__link.is-active{ color:#160f02; background: linear-gradient(135deg, var(--gold-strong), var(--gold-dim)); font-weight:600; }

.header__actions{ display:flex; align-items:center; gap:10px; flex-shrink:0; }

.search{
  display:flex; align-items:center; gap:8px;
  background: var(--surface-2); border:1px solid var(--border);
  border-radius:999px; padding:9px 14px; width:190px;
  transition: border-color var(--transition), width var(--transition);
}
.search:focus-within{ border-color: var(--border-strong); width:220px; }
.search i{ color:var(--text-mute); font-size:.85rem; }
.search input{
  background:none; border:none; outline:none; color:var(--text);
  font-size:.85rem; width:100%; font-family:inherit;
}
.search input::placeholder{ color:var(--text-mute); }

.icon-btn{
  position:relative;
  width:40px; height:40px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  background: var(--surface-2); border:1px solid var(--border);
  color:var(--text); font-size:1rem;
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
}
.icon-btn:hover{ border-color:var(--gold); color:var(--gold-strong); }
.icon-btn .badge{
  position:absolute; top:-4px; right:-4px;
  background: var(--blue-strong); color:#04121c;
  font-size:.65rem; font-weight:700;
  min-width:18px; height:18px; border-radius:999px;
  display:flex; align-items:center; justify-content:center;
  padding:0 4px; box-shadow:0 0 0 2px var(--bg);
}
.burger{ display:none; }

/* ---------- Hero ---------- */
.hero{
  position:relative; overflow:hidden;
  padding:70px 0 40px;
  background: #05070a;
}
.hero__grid{
  position:absolute; inset:0; z-index:0;
  background-image:
    linear-gradient(rgba(217,178,76,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217,178,76,0.06) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 900px 600px at 60% 10%, #000 0%, transparent 75%);
}
.hero__glow{ position:absolute; z-index:0; border-radius:50%; filter: blur(60px); }
.hero__glow--gold{ width:520px; height:520px; top:-180px; right:-80px; background: radial-gradient(circle, rgba(217,178,76,0.32), transparent 70%); }
.hero__glow--blue{ width:480px; height:480px; bottom:-220px; left:-120px; background: radial-gradient(circle, rgba(63,182,255,0.20), transparent 70%); }
.hero__particles{
  position:absolute; inset:0; z-index:0;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 22%, var(--gold-strong), transparent),
    radial-gradient(1px 1px at 32% 68%, var(--blue-strong), transparent),
    radial-gradient(1.5px 1.5px at 58% 14%, var(--gold-strong), transparent),
    radial-gradient(1px 1px at 74% 52%, var(--blue-strong), transparent),
    radial-gradient(1.5px 1.5px at 92% 30%, var(--gold-strong), transparent),
    radial-gradient(1px 1px at 86% 78%, var(--blue-strong), transparent),
    radial-gradient(1px 1px at 18% 88%, var(--gold-strong), transparent);
  opacity:.6;
  animation: twinkle 6s ease-in-out infinite alternate;
}
@keyframes twinkle{ from{ opacity:.3; } to{ opacity:.7; } }

.hero__inner{ position:relative; z-index:1; display:grid; grid-template-columns:1.15fr .85fr; gap:40px; align-items:center; }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  color:var(--gold-strong); font-weight:600; font-size:.8rem;
  letter-spacing:.5px; text-transform:uppercase;
  background: rgba(217,178,76,0.08); border:1px solid var(--border);
  padding:6px 14px; border-radius:999px; margin-bottom:18px;
}
.hero h1{ font-size:clamp(2rem, 3.6vw, 3.1rem); margin-bottom:.4em; font-weight:700; }
.glow-text{ color:var(--gold-strong); text-shadow: 0 0 30px var(--gold-glow); }
.hero__text p{ font-size:1.02rem; max-width:480px; }
.hero__cta{ display:flex; gap:14px; flex-wrap:wrap; margin-top:22px; }

.hero__art{ position:relative; display:flex; align-items:center; justify-content:center; min-height:320px; }
.hero__ring{
  position:absolute; border-radius:50%; border:1px solid var(--border);
  animation: spin 26s linear infinite;
}
.hero__ring--1{ width:280px; height:280px; }
.hero__ring--2{ width:360px; height:360px; border-color: rgba(63,182,255,0.14); animation-direction:reverse; animation-duration:34s; }
@keyframes spin{ from{ transform: rotate(0deg);} to{ transform: rotate(360deg);} }
.hero__logo{
  position:relative; width:190px; height:190px; border-radius:50%;
  filter: drop-shadow(0 0 40px var(--gold-glow));
  animation: float 6s ease-in-out infinite;
}
@keyframes float{ 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(-14px);} }

.stats{
  position:relative; z-index:1; margin-top:56px;
  display:grid; grid-template-columns:repeat(4,1fr); gap:16px;
  padding-top:32px; border-top:1px solid var(--border);
}
.stat{ text-align:center; }
.stat__num{ display:block; font-family:var(--font-head); font-size:1.6rem; font-weight:700; color:var(--gold-strong); }
.stat__label{ font-size:.78rem; color:var(--text-mute); }

/* ---------- Section titles ---------- */
.section-title{ text-align:center; max-width:600px; margin:0 auto 32px; }
.section-eyebrow{
  display:inline-block; color:var(--blue-strong); font-weight:700; font-size:.75rem;
  letter-spacing:1px; text-transform:uppercase; margin-bottom:10px;
}
.section-title h2{ font-size:clamp(1.5rem,2.6vw,2.1rem); }
.section-title p{ font-size:.94rem; }

/* ---------- Category pills ---------- */
.cats{ padding:80px 24px 20px; }
.pills{ display:flex; flex-wrap:wrap; gap:10px; justify-content:center; margin-bottom:40px; }
.pill{
  display:flex; align-items:center; gap:7px;
  background: var(--surface); border:1px solid var(--border);
  color:var(--text-dim); padding:10px 18px; border-radius:999px;
  font-size:.83rem; font-weight:500;
  transition: all var(--transition);
}
.pill__icon{ width:15px; height:15px; }
.pill:hover{ color:var(--text); border-color:var(--border-strong); }
.pill.is-active{
  background: linear-gradient(135deg, var(--gold-strong), var(--gold-dim));
  color:#160f02; border-color:transparent; font-weight:600;
}

/* ---------- Product grid ---------- */
.grid{
  display:grid; grid-template-columns:repeat(auto-fill, minmax(250px,1fr)); gap:22px;
}
.empty-state{ text-align:center; padding:60px 0; color:var(--text-mute); font-size:1rem; }

.card{
  background: var(--surface);
  border:1px solid var(--border);
  border-radius: var(--radius);
  overflow:hidden;
  display:flex; flex-direction:column;
  cursor:pointer;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  animation: cardIn .5s ease both;
}
@keyframes cardIn{ from{ opacity:0; transform:translateY(14px);} to{ opacity:1; transform:none;} }
.card:hover{ transform: translateY(-6px); border-color: var(--border-strong); box-shadow: 0 16px 34px -10px rgba(0,0,0,0.6); }

.card__media{
  position:relative; height:190px;
  display:flex; align-items:center; justify-content:center;
  background:
    radial-gradient(circle at 30% 20%, rgba(255,255,255,0.05), transparent 55%),
    linear-gradient(135deg, var(--cat-a, #1a1408), var(--cat-b, #0a0704));
}
.card__media svg{ width:52px; height:52px; color: var(--gold-strong); filter: drop-shadow(0 0 14px rgba(0,0,0,.3)); }
.card__photo{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.card__badge{
  position:absolute; top:10px; left:10px; z-index:2;
  font-size:.65rem; font-weight:700; letter-spacing:.4px; text-transform:uppercase;
  padding:4px 9px; border-radius:999px; color:#160f02;
  background: var(--gold-strong);
}
.card__cat{
  position:absolute; bottom:10px; right:10px; z-index:2;
  font-size:.65rem; color:rgba(255,255,255,.8);
  background: rgba(0,0,0,0.45); padding:3px 8px; border-radius:999px;
}

.card__body{ padding:16px 16px 18px; display:flex; flex-direction:column; gap:6px; flex:1; }
.card__name{ font-family:var(--font-head); font-size:.92rem; font-weight:600; letter-spacing:.2px; }
.card__desc{ font-size:.8rem; color:var(--text-mute); margin-bottom:8px; min-height:34px; }
.card__footer{ margin-top:auto; display:flex; align-items:center; justify-content:space-between; gap:10px; }
.card__price{ font-family:var(--font-head); font-weight:700; font-size:1.1rem; color:var(--text); }
.card__price span{ display:block; font-size:.63rem; font-weight:400; color:var(--text-mute); font-family:var(--font-body); }

.stepper{ display:flex; align-items:center; gap:0; border:1px solid var(--border); border-radius:999px; overflow:hidden; }
.stepper button{ width:28px; height:28px; background:var(--surface-2); color:var(--text); border:none; font-size:1rem; }
.stepper button:hover{ background: rgba(217,178,76,0.14); color:var(--gold-strong); }
.stepper span{ width:26px; text-align:center; font-size:.85rem; font-weight:600; }

.add-btn{
  width:100%; margin-top:12px;
  background: rgba(217,178,76,0.08);
  border:1px solid var(--border-strong);
  color:var(--gold-strong);
  padding:10px; border-radius:10px;
  font-weight:600; font-size:.85rem;
  display:flex; align-items:center; justify-content:center; gap:8px;
  transition: all var(--transition);
}
.add-btn:hover{ background: var(--gold-strong); color:#160f02; }
.add-btn.is-added{ background: var(--gold-strong); color:#160f02; }

/* ---------- Tarjetas de video (categoría Tutoriales) ---------- */
.card__play{
  position:absolute; inset:0; z-index:1;
  display:flex; align-items:center; justify-content:center;
  font-size:2.6rem; color:rgba(255,255,255,.92);
  text-shadow:0 4px 18px rgba(0,0,0,.55);
  pointer-events:none; transition: transform var(--transition), color var(--transition);
}
.card:hover .card__play{ transform:scale(1.08); color: var(--gold-strong); }
.card__footer--video{ justify-content:flex-start; }
.card__duration{ font-size:.8rem; color:var(--text-mute); display:inline-flex; align-items:center; gap:6px; }
.watch-btn{
  width:100%; margin-top:12px;
  background: rgba(217,178,76,0.08);
  border:1px solid var(--border-strong);
  color:var(--gold-strong);
  padding:10px; border-radius:10px;
  font-weight:600; font-size:.85rem;
  display:flex; align-items:center; justify-content:center; gap:8px;
  transition: all var(--transition);
}
.watch-btn:hover{ background: var(--gold-strong); color:#160f02; }

/* ---------- Systems comparison table ---------- */
.systems{ padding:90px 24px 20px; }
.systems__table-wrap{
  overflow-x:auto; border:1px solid var(--border); border-radius: var(--radius-lg);
  background: var(--surface);
}
.systems__table{ min-width:680px; }
.systems__table th, .systems__table td{
  padding:16px 20px; text-align:left; font-size:.88rem; white-space:nowrap;
}
.systems__table thead th{
  font-family:var(--font-head); font-size:.72rem; letter-spacing:.6px; text-transform:uppercase;
  color:var(--blue-strong); border-bottom:1px solid var(--border-strong);
  background: rgba(63,182,255,0.05);
}
.systems__table tbody tr{ border-bottom:1px solid var(--border); }
.systems__table tbody tr:last-child{ border-bottom:none; }
.systems__table tbody tr:hover{ background: rgba(217,178,76,0.04); }
.systems__line{ font-weight:600; color:var(--text); }
.systems__price{ font-family:var(--font-head); color:var(--gold-strong); font-weight:700; }
.tag{ display:inline-block; padding:3px 10px; border-radius:999px; font-size:.72rem; font-weight:700; }
.tag--high{ background: rgba(63,182,255,0.15); color:var(--blue-strong); }
.tag--low{ background: rgba(217,178,76,0.15); color:var(--gold-strong); }
.systems__note{ text-align:center; margin-top:22px; font-size:.88rem; }
.systems__note a{ color:var(--gold-strong); font-weight:600; }
.systems__note a:hover{ text-decoration:underline; }

/* ---------- Why us ---------- */
.why{ padding:90px 24px; }
.why__grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.why__card{
  background: var(--surface); border:1px solid var(--border); border-radius: var(--radius);
  padding:26px 20px; text-align:center;
  transition: border-color var(--transition), transform var(--transition);
}
.why__card:hover{ transform:translateY(-4px); border-color: var(--border-strong); }
.why__card svg{ width:30px; height:30px; color:var(--gold-strong); margin-bottom:12px; filter: drop-shadow(0 0 10px var(--gold-glow)); }
.why__card h3{ font-size:.98rem; }
.why__card p{ font-size:.82rem; margin:0; }

/* ---------- CTA banner ---------- */
.cta-banner{ padding:0 24px 90px; }
.cta-banner__inner{
  background: linear-gradient(120deg, rgba(217,178,76,0.12), rgba(63,182,255,0.10));
  border:1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding:42px 40px;
  display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
}
.cta-banner__inner h2{ font-size:1.4rem; margin-bottom:.2em; }
.cta-banner__inner p{ margin:0; }

/* ---------- Footer ---------- */
.footer{ background: var(--bg-soft); border-top:1px solid var(--border); padding:60px 24px 20px; }
.footer__inner{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:32px; }
.footer__brand p{ font-size:.85rem; max-width:280px; }
.socials{ display:flex; gap:10px; margin-top:14px; }
.socials a{
  width:36px; height:36px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  background: var(--surface-2); border:1px solid var(--border); transition: all var(--transition);
}
.socials a:hover{ color:var(--gold-strong); border-color:var(--gold); }
.footer__col h4{ font-size:.82rem; text-transform:uppercase; letter-spacing:.5px; color:var(--text-mute); margin-bottom:14px; }
.footer__col a, .footer__col p{ display:block; font-size:.87rem; color:var(--text-dim); margin-bottom:10px; }
.footer__col a:hover{ color:var(--gold-strong); }
.footer__bottom{ margin-top:40px; padding-top:20px; border-top:1px solid var(--border); text-align:center; }
.footer__bottom p{ font-size:.76rem; color:var(--text-mute); margin:0; }

/* ---------- Floating WhatsApp ---------- */
.floating-wa{
  position:fixed; bottom:24px; right:24px; z-index:60;
  width:58px; height:58px; border-radius:50%;
  background:#25D366; color:#fff; font-size:1.6rem;
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 10px 30px -6px rgba(37,211,102,0.6);
  animation: pulse 2.4s infinite;
}
@keyframes pulse{
  0%{ box-shadow: 0 0 0 0 rgba(37,211,102,0.55), 0 10px 30px -6px rgba(37,211,102,0.6); }
  70%{ box-shadow: 0 0 0 16px rgba(37,211,102,0), 0 10px 30px -6px rgba(37,211,102,0.6); }
  100%{ box-shadow: 0 0 0 0 rgba(37,211,102,0), 0 10px 30px -6px rgba(37,211,102,0.6); }
}

/* ---------- Cart drawer ---------- */
.drawer-overlay{
  position:fixed; inset:0; background:rgba(0,0,0,0.6); backdrop-filter: blur(2px);
  z-index:150; opacity:0; pointer-events:none; transition: opacity var(--transition);
}
.drawer-overlay.is-open{ opacity:1; pointer-events:auto; }

.cart-drawer{
  position:fixed; top:0; right:0; height:100%; width:min(420px,100%);
  background: var(--surface); border-left:1px solid var(--border);
  z-index:160; display:flex; flex-direction:column;
  transform: translateX(100%); transition: transform .35s cubic-bezier(.4,0,.2,1);
  box-shadow: -10px 0 40px rgba(0,0,0,0.5);
}
.cart-drawer.is-open{ transform: translateX(0); }
.cart-drawer__header{
  display:flex; align-items:center; justify-content:space-between;
  padding:20px 22px; border-bottom:1px solid var(--border);
}
.cart-drawer__header h3{ font-size:1.02rem; display:flex; align-items:center; gap:8px; margin:0; font-family:var(--font-body); font-weight:700; }
.cart-drawer__body{ flex:1; overflow-y:auto; padding:14px 22px; display:flex; flex-direction:column; gap:14px; }

.cart-item{ display:flex; gap:12px; align-items:center; }
.cart-item__icon{
  width:52px; height:52px; border-radius:10px; flex-shrink:0; overflow:hidden;
  display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, var(--cat-a,#1a1408), var(--cat-b,#0a0704));
}
.cart-item__icon svg{ width:24px; height:24px; color:var(--gold-strong); }
.cart-item__photo{ width:100%; height:100%; object-fit:cover; }
.cart-item__info{ flex:1; min-width:0; }
.cart-item__name{ font-size:.86rem; font-weight:600; margin-bottom:2px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.cart-item__price{ font-size:.76rem; color:var(--text-mute); }
.cart-item__actions{ display:flex; align-items:center; gap:10px; }
.cart-item__remove{ color:var(--text-mute); font-size:.85rem; background:none; border:none; }
.cart-item__remove:hover{ color:#ff6b6b; }

.cart-drawer__empty{ flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:12px; color:var(--text-mute); text-align:center; padding:20px; }
.cart-drawer__empty i{ font-size:2.2rem; opacity:.5; color: var(--gold-dim); }
.cart-drawer__footer{ padding:18px 22px 24px; border-top:1px solid var(--border); display:flex; flex-direction:column; gap:10px; }
.cart-drawer__row{ display:flex; justify-content:space-between; font-weight:700; font-size:1.08rem; }
.cart-drawer__note{ font-size:.75rem; color:var(--text-mute); margin:0 0 4px; }

/* ---------- Product detail modal ---------- */
.detail-overlay{
  position:fixed; inset:0; z-index:170; background:rgba(0,0,0,0.7); backdrop-filter: blur(3px);
  opacity:0; pointer-events:none; transition: opacity var(--transition);
}
.detail-overlay.is-open{ opacity:1; pointer-events:auto; }

.product-detail{
  position:fixed; top:50%; left:50%; transform: translate(-50%,-50%) scale(.95);
  z-index:180; width:min(880px, 92vw); max-height:88vh; overflow-y:auto;
  background: var(--surface); border:1px solid var(--border); border-radius: var(--radius-lg);
  padding:30px; opacity:0; pointer-events:none; transition: opacity var(--transition), transform var(--transition);
  box-shadow: var(--shadow-soft);
}
.product-detail.is-open{ opacity:1; pointer-events:auto; transform: translate(-50%,-50%) scale(1); }
.product-detail__close{ position:absolute; top:16px; right:16px; z-index:2; }

.product-detail__inner{ display:grid; grid-template-columns:1fr 1fr; gap:32px; }

.product-detail__main{
  position:relative; border-radius: var(--radius); overflow:hidden; height:340px;
  display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, var(--cat-a,#1a1408), var(--cat-b,#0a0704));
}
.product-detail__main img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.product-detail__main iframe{ position:absolute; inset:0; width:100%; height:100%; border:none; }
.product-detail__main svg{ width:80px; height:80px; color: var(--gold-strong); }

/* Tutoriales: modal ancho (~3/4 de pantalla en desktop) con el video como
   contenido principal a full width, sin columna de precio/carrito al lado. */
.product-detail--video{ width:min(75vw, 1400px); }
.product-detail--video .product-detail__inner{ grid-template-columns:1fr; }
.product-detail--video .product-detail__main{ height:auto; aspect-ratio:16/9; }
@media (max-width: 760px){
  .product-detail--video{ width:92vw; }
}

.product-detail__thumbs{ display:flex; gap:8px; margin-top:10px; flex-wrap:wrap; }
.product-detail__thumbs img{
  width:60px; height:60px; object-fit:cover; border-radius:8px; cursor:pointer;
  border:2px solid transparent; opacity:.7; transition: all var(--transition);
}
.product-detail__thumbs img:hover, .product-detail__thumbs img.is-active{ opacity:1; border-color: var(--gold-strong); }

.product-detail__videos{ margin-top:16px; display:flex; flex-direction:column; gap:12px; }
.product-detail__videos iframe, .product-detail__videos video{
  width:100%; aspect-ratio:16/9; border-radius: var(--radius-sm); border:none; background:#000;
}

.product-detail__info h2{ font-size:1.3rem; margin-bottom:.3em; }
.product-detail__desc{ font-size:.92rem; white-space:pre-line; }
.product-detail__info .card__cat{ position:static; display:inline-block; margin-bottom:10px; background: var(--surface-2); }
.product-detail__info .card__price{ font-size:1.25rem; margin:6px 0 16px; }
.product-detail__info .stepper{ margin-bottom:16px; width:fit-content; }

@media (max-width: 760px){
  .product-detail__inner{ grid-template-columns:1fr; }
}

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .nav{
    display:none;
    position:fixed; top:65px; left:12px; right:12px; z-index:99;
    flex-direction:column; gap:2px; overflow-x:visible;
    background: var(--surface); border:1px solid var(--border-strong);
    border-radius: var(--radius); padding:10px;
    box-shadow: var(--shadow-soft);
  }
  .nav.is-open-mobile{ display:flex; }
  .nav__link{ text-align:left; padding:12px 14px; }
  .burger{ display:flex; }
  .search{ width:150px; }
  .hero__inner{ grid-template-columns:1fr; }
  .hero__art{ order:-1; min-height:220px; }
  .why__grid{ grid-template-columns:repeat(2,1fr); }
  .footer__inner{ grid-template-columns:1fr 1fr; }
}
@media (max-width: 640px){
  .stats{ grid-template-columns:repeat(2,1fr); gap:24px; }
  .search{ display:none; }
  .why__grid{ grid-template-columns:1fr; }
  .footer__inner{ grid-template-columns:1fr; }
  .cta-banner__inner{ flex-direction:column; text-align:center; }
}