/* =========================================================
   BIOLAZIO ROCK — Hoja de estilos principal
   Diseño: rock oscuro, alto contraste, tipografía impactante,
   optimizado para conversión (tienda / entradas / fan club).
   ========================================================= */

:root {
  --bg: #0a0908;
  --bg-alt: #131110;
  --bg-card: #1a1715;
  --line: #2b2622;
  --text: #f3efe9;
  --text-dim: #b8afa4;
  --accent: #c8272c;       /* rojo crimson - energía / rock */
  --accent-dark: #8f1418;
  --accent-2: #d9a441;      /* dorado ámbar - detalle premium */
  --success: #2f9e58;
  --danger: #e04b4b;
  --radius: 10px;
  --radius-lg: 18px;
  --shadow: 0 10px 30px rgba(0,0,0,.45);
  --font-display: 'Anton', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-gothic: 'UnifrakturCook', 'Anton', serif;
  --accent-sludge: #5a6b3f;  /* verde sludge/doom, uso muy puntual para atmósfera */
  --glass-bg: rgba(26,23,21,.55);
  --glass-border: rgba(255,255,255,.08);
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
}
/* Grano sutil sobre todo el sitio: aporta atmósfera "doom" sin pesar nada (SVG puro, sin imágenes). */
body::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: 2000; opacity: .035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.font-gothic { font-family: var(--font-gothic); text-transform: none; letter-spacing: .01em; font-weight: 700; }

/* ---------- Glassmorphism ---------- */
.glass {
  background: var(--glass-bg); backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--glass-border);
}

/* ---------- Tilt 3D (hover) ---------- */
.tilt-wrap { perspective: 900px; }
.tilt-el { transform-style: preserve-3d; transition: transform .25s cubic-bezier(.2,.7,.3,1); will-change: transform; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: .5px;
  line-height: 1.1;
  margin: 0 0 .5em;
}
p { margin: 0 0 1em; color: var(--text-dim); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--accent); color: #fff;
  padding: 10px 16px; z-index: 1000;
}
.skip-link:focus { left: 10px; top: 10px; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: 14px 28px; border-radius: 999px; font-weight: 700; font-size: .95rem;
  text-transform: uppercase; letter-spacing: .06em; cursor: pointer; border: 2px solid transparent;
  transition: transform .15s ease, background .2s ease, border-color .2s ease, opacity .2s ease;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-outline { background: transparent; border-color: var(--text); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-gold { background: var(--accent-2); color: #221a08; }
.btn-gold:hover { opacity: .88; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 500;
  background: rgba(10,9,8,.85); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 20px; }
.brand-mark {
  font-family: var(--font-display); font-size: 1.6rem; letter-spacing: 2px; color: var(--text);
}
.brand-mark::after { content: ''; }
.brand-mark-img { height: 30px; width: auto; display: block; }
.footer-brand .brand-mark-img { height: 34px; margin-bottom: 14px; }
.main-nav { display: flex; gap: 28px; }
.main-nav a { font-weight: 600; font-size: .92rem; text-transform: uppercase; letter-spacing: .04em; color: var(--text-dim); transition: color .15s; }
.main-nav a:hover { color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 18px; }
.cart-link { position: relative; color: var(--text); }
.cart-count {
  position: absolute; top: -8px; right: -10px; background: var(--accent); color: #fff;
  font-size: .68rem; font-weight: 700; border-radius: 999px; min-width: 18px; height: 18px;
  display: flex; align-items: center; justify-content: center; padding: 0 4px;
}
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); }

@media (max-width: 880px) {
  .main-nav {
    position: fixed; inset: 74px 0 auto 0; background: var(--bg-alt); flex-direction: column;
    padding: 20px; gap: 4px; border-bottom: 1px solid var(--line);
    transform: translateY(-120%); transition: transform .25s ease; max-height: calc(100vh - 74px); overflow: auto;
  }
  .main-nav.open { transform: translateY(0); }
  .main-nav a { padding: 14px 8px; border-bottom: 1px solid var(--line); }
  .nav-toggle { display: flex; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; padding: 150px 0 100px; overflow: hidden;
  background:
    linear-gradient(180deg, rgba(6,5,5,.55) 0%, rgba(8,7,6,.75) 55%, #0a0908 100%),
    radial-gradient(ellipse at 20% 10%, rgba(200,39,44,.30), transparent 55%),
    url('/assets/images/hero-biolazio.jpg') center 20%/cover no-repeat;
  border-bottom: 1px solid var(--line);
}
.hero::before {
  content: ''; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: radial-gradient(rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 3px 3px;
}
.hero-logo { max-width: 340px; width: 60%; height: auto; margin: 0 auto 22px; display: block; }

/* Video de fondo decorativo (cuña Hipogrifo) usado donde no hay foto disponible */
.video-bg-section { position: relative; overflow: hidden; }
.video-bg-section video {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0;
  filter: brightness(.5) saturate(1.1);
}
.video-bg-section .container { position: relative; z-index: 1; }
.video-bg-section::after {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse at 50% 100%, rgba(90,107,63,.20), transparent 60%),
    linear-gradient(180deg, rgba(10,9,8,.55), rgba(10,9,8,.85));
}
.hero-inner { position: relative; text-align: center; max-width: 820px; margin: 0 auto; }
.hero-eyebrow {
  display: inline-block; color: var(--accent-2); font-weight: 700; letter-spacing: .18em;
  text-transform: uppercase; font-size: .8rem; margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.6rem); color: var(--text); margin-bottom: .4em;
  text-shadow: 0 2px 30px rgba(200,39,44,.35);
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-lead { font-size: 1.15rem; max-width: 620px; margin: 0 auto 2em; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; justify-content: center; margin-top: 60px; flex-wrap: wrap; }
.hero-stat strong { display: block; font-family: var(--font-display); font-size: 2rem; color: var(--accent-2); }
.hero-stat span { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-dim); }

/* ---------- Secciones genéricas ---------- */
section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 640px; margin: 0 auto 50px; text-align: center; }
.section-head .eyebrow { color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: .16em; font-size: .78rem; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); }

/* ---------- Historia / bio ---------- */
.bio-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.bio-art {
  aspect-ratio: 4/3; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line);
  background: linear-gradient(160deg, #201a17, #0d0b0a);
  display: flex; align-items: center; justify-content: center;
}
.bio-timeline { list-style: none; margin: 24px 0 0; padding: 0; border-left: 2px solid var(--line); }
.bio-timeline li { position: relative; padding: 0 0 24px 24px; }
.bio-timeline li::before {
  content: ''; position: absolute; left: -7px; top: 4px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px rgba(200,39,44,.2);
}
.bio-timeline strong { display: block; color: var(--text); font-family: var(--font-display); letter-spacing: .5px; }

@media (max-width: 880px) { .bio-grid { grid-template-columns: 1fr; gap: 34px; } }

/* ---------- Media / música ---------- */
.media-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.video-card { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); background: var(--bg-card); }
.video-frame { position: relative; aspect-ratio: 16/9; background: #000; }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-card-body { padding: 18px 20px; }
.video-card-body h3 { font-size: 1rem; margin-bottom: .2em; }
@media (max-width: 780px) { .media-grid { grid-template-columns: 1fr; } }

.streaming-row { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 40px; }
.streaming-row a {
  padding: 12px 22px; border: 1px solid var(--line); border-radius: 999px; font-weight: 600; font-size: .9rem;
}
.streaming-row a:hover { border-color: var(--accent-2); color: var(--accent-2); }

/* ---------- Galería de fotos / posters ---------- */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.gallery-item {
  aspect-ratio: 3/4; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  background: linear-gradient(150deg, #1c1613, #0c0a09); position: relative;
  display: flex; align-items: center; justify-content: center; color: var(--text-dim); font-size: .75rem; text-align: center; padding: 10px;
  transition: transform .2s ease, border-color .2s ease;
}
.gallery-item:hover { transform: translateY(-3px); border-color: var(--accent-2); }
.gallery-item img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 880px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Banda "Sigue explorando" (CTA cruzado, páginas interiores) ---------- */
.explore-band { position: relative; overflow: hidden; padding: 80px 0; }
.explore-band-bg {
  position: absolute; inset: -10% 0; z-index: 0; background-size: cover; background-position: center;
  will-change: transform;
}
.explore-band-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(10,9,8,.88) 0%, rgba(10,9,8,.72) 50%, rgba(10,9,8,.92) 100%);
}
.explore-band .container { position: relative; z-index: 2; }
.explore-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 10px; }
.explore-card {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px;
  padding: 32px 20px; border-radius: var(--radius-lg); transition: transform .22s ease, border-color .22s ease;
}
.explore-card:hover { transform: translateY(-5px); border-color: var(--accent-2); }
.explore-icon { font-size: 1.8rem; margin-bottom: 6px; }
.explore-card strong { font-size: 1.05rem; color: var(--text); }
.explore-card span { font-size: .85rem; color: var(--text-dim); }
@media (max-width: 780px) { .explore-grid { grid-template-columns: 1fr; } }

/* ---------- Tarjetas de producto (tienda / entradas / descargas) ---------- */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 28px; }
.product-card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column; transition: transform .18s ease, border-color .18s ease;
}
.product-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.product-thumb {
  aspect-ratio: 1/1; background: linear-gradient(150deg, #201a17, #0d0b0a);
  display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden;
}
.product-thumb img { width: 100%; height: 100%; object-fit: cover; }
.badge {
  position: absolute; top: 12px; left: 12px; background: var(--accent); color: #fff; font-size: .7rem;
  font-weight: 700; text-transform: uppercase; letter-spacing: .05em; padding: 5px 10px; border-radius: 999px;
}
.badge-outline { background: transparent; border: 1px solid var(--accent-2); color: var(--accent-2); }
.product-body { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.product-body h3 { font-size: 1rem; margin: 0; text-transform: none; letter-spacing: 0; font-family: var(--font-body); font-weight: 700; }
.product-desc { font-size: .88rem; margin: 0; flex: 1; }
.product-meta { display: flex; align-items: center; justify-content: space-between; }
.price { font-family: var(--font-display); font-size: 1.3rem; color: var(--accent-2); letter-spacing: .5px; }
.price-old { text-decoration: line-through; color: var(--text-dim); font-size: .85rem; margin-right: 6px; }
.event-meta { font-size: .82rem; color: var(--text-dim); display: flex; gap: 6px; align-items: center; }

.filter-tabs { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.filter-tabs a {
  padding: 10px 20px; border-radius: 999px; border: 1px solid var(--line); font-weight: 600; font-size: .85rem;
  text-transform: uppercase; letter-spacing: .04em;
}
.filter-tabs a.active, .filter-tabs a:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Producto individual ---------- */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.product-detail .product-thumb { aspect-ratio: 1/1; border-radius: var(--radius-lg); border: 1px solid var(--line); }
.product-info h1 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); text-transform: none; font-family: var(--font-body); font-weight: 800; }
.qty-row { display: flex; align-items: center; gap: 14px; margin: 20px 0; }
.qty-control { display: flex; align-items: center; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.qty-control button { background: none; border: 0; color: var(--text); width: 40px; height: 40px; font-size: 1.1rem; cursor: pointer; }
.qty-control input { width: 44px; text-align: center; background: none; border: 0; color: var(--text); font-size: 1rem; }
.stock-note { font-size: .85rem; color: var(--success); }
.stock-note.low { color: var(--accent-2); }
.stock-note.out { color: var(--danger); }
.trust-badges { display: flex; gap: 18px; margin-top: 28px; flex-wrap: wrap; font-size: .82rem; color: var(--text-dim); }
@media (max-width: 880px) { .product-detail { grid-template-columns: 1fr; gap: 30px; } }

/* ---------- Álbum BLACK: carátula + letras ---------- */
.album-lyrics { margin-top: 60px; padding-top: 50px; border-top: 1px solid var(--line); }
.album-covers { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 640px; margin: 0 auto 44px; }
.album-covers figure { margin: 0; }
.album-covers img { width: 100%; height: auto; border-radius: var(--radius); border: 1px solid var(--line); display: block; }
.album-covers figcaption { text-align: center; margin-top: 10px; font-size: .8rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: .06em; }
@media (max-width: 560px) { .album-covers { grid-template-columns: 1fr; max-width: 360px; } }

.lyrics-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.lyrics-item { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 4px 22px; }
.lyrics-item summary {
  cursor: pointer; list-style: none; padding: 16px 0; font-weight: 700; font-size: 1rem;
  display: flex; align-items: center; gap: 14px; color: var(--text);
}
.lyrics-item summary::-webkit-details-marker { display: none; }
.lyrics-item summary::after { content: '+'; margin-left: auto; font-size: 1.3rem; color: var(--accent-2); }
.lyrics-item[open] summary::after { content: '−'; }
.lyrics-item[open] summary { border-bottom: 1px solid var(--line); }
.lyrics-num { color: var(--accent); font-family: var(--font-display); font-size: 1.1rem; min-width: 28px; }
.lyrics-item p { white-space: pre-line; color: var(--text-dim); line-height: 1.8; padding: 18px 0 20px 42px; margin: 0; }
.lyrics-pending { font-style: italic; color: var(--text-dim); opacity: .75; }

/* ---------- Fan Club / Donaciones ---------- */
.perk-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 40px 0; }
.perk-card { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; text-align: center; }
.perk-card .icon { font-size: 1.8rem; margin-bottom: 10px; }
.donation-amounts { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin: 20px 0; }
.donation-amounts button {
  padding: 14px 22px; border-radius: 999px; border: 1px solid var(--line); background: none; color: var(--text);
  font-weight: 700; cursor: pointer; font-size: 1rem;
}
.donation-amounts button.active, .donation-amounts button:hover { border-color: var(--accent-2); color: var(--accent-2); }
@media (max-width: 780px) { .perk-grid { grid-template-columns: 1fr; } }

/* ---------- Formularios ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1/-1; }
label { display: block; font-size: .82rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--text-dim); margin-bottom: 6px; }
input, textarea, select {
  width: 100%; background: var(--bg-card); border: 1px solid var(--line); color: var(--text);
  padding: 13px 14px; border-radius: 8px; font-family: var(--font-body); font-size: .95rem;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent-2); }
.field { margin-bottom: 16px; }
.form-msg { font-size: .85rem; min-height: 1.2em; }
.form-msg.ok { color: var(--success); }
.form-msg.error { color: var(--danger); }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }

/* ---------- Carrito / checkout ---------- */
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th { text-align: left; font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-dim); padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.cart-table td { padding: 16px 0; border-bottom: 1px solid var(--line); vertical-align: middle; }
.cart-row-info { display: flex; align-items: center; gap: 14px; }
.cart-row-thumb { width: 64px; height: 64px; border-radius: 8px; background: var(--bg-card); border: 1px solid var(--line); overflow: hidden; }
.remove-item { color: var(--danger); font-size: .8rem; font-weight: 600; cursor: pointer; background: none; border: 0; }
.cart-summary { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; position: sticky; top: 100px; }
.summary-row { display: flex; justify-content: space-between; margin-bottom: 10px; color: var(--text-dim); }
.summary-row.total { color: var(--text); font-weight: 800; font-size: 1.2rem; border-top: 1px solid var(--line); padding-top: 14px; margin-top: 14px; }
.checkout-layout { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: flex-start; }
@media (max-width: 900px) { .checkout-layout { grid-template-columns: 1fr; } .cart-summary { position: static; } }
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-dim); }

/* ---------- Descargas (pistas individuales de álbum) ---------- */
.download-group { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; margin-bottom: 18px; }
.track-download-list { list-style: none; margin: 14px 0 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 4px 20px; }
.track-download-list li a { font-size: .9rem; color: var(--text-dim); padding: 6px 0; display: block; }
.track-download-list li a:hover { color: var(--accent-2); }
@media (max-width: 560px) { .track-download-list { grid-template-columns: 1fr; } }

/* ---------- Confianza / seguridad de pago ---------- */
.secure-note { display: flex; align-items: center; gap: 10px; font-size: .82rem; color: var(--text-dim); margin-top: 14px; }

/* ---------- Footer ---------- */
.site-footer { background: #060505; border-top: 1px solid var(--line); padding: 70px 0 0; }
.footer-inner { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 40px; padding-bottom: 50px; }
.footer-col h3 { font-size: .85rem; letter-spacing: .08em; color: var(--text-dim); margin-bottom: 14px; }
.footer-col a { display: block; font-size: .9rem; color: var(--text-dim); margin-bottom: 10px; }
.footer-col a:hover { color: var(--accent-2); }
.footer-brand p { font-size: .88rem; margin-top: 10px; }
.social-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.social-links a {
  width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 50%; display: flex; align-items: center;
  justify-content: center; font-size: .72rem; font-weight: 700; color: var(--text-dim);
  transition: border-color .18s ease, color .18s ease, transform .18s ease;
}
.social-links a:hover { border-color: var(--accent-2); color: var(--accent-2); transform: translateY(-2px); }
.social-icon svg { width: 17px; height: 17px; }
.social-icon-text { font-size: .68rem; letter-spacing: .02em; }
.newsletter-row { display: flex; gap: 8px; }
.newsletter-row input { flex: 1; }
.newsletter-row button { white-space: nowrap; padding: 12px 16px; border-radius: 8px; border: 0; background: var(--accent); color: #fff; font-weight: 700; cursor: pointer; }
.footer-bottom { border-top: 1px solid var(--line); padding: 18px 0; font-size: .8rem; color: var(--text-dim); text-align: center; }
@media (max-width: 900px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-inner { grid-template-columns: 1fr; } }

.whatsapp-fab {
  position: fixed; bottom: 22px; right: 22px; width: 58px; height: 58px; border-radius: 50%;
  background: #25D366; color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow); z-index: 400;
}

/* ---------- Utilidades ---------- */
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: .78rem; color: var(--text-dim); }
.alert { padding: 14px 18px; border-radius: 8px; font-size: .9rem; margin-bottom: 20px; }
.alert-success { background: rgba(47,158,88,.12); border: 1px solid rgba(47,158,88,.4); color: #7ee2a2; }
.alert-error { background: rgba(224,75,75,.12); border: 1px solid rgba(224,75,75,.4); color: #ffb3b3; }
.breadcrumb { font-size: .82rem; color: var(--text-dim); margin-bottom: 24px; }
.breadcrumb a:hover { color: var(--accent-2); }
.skeleton-note { font-size: .8rem; color: var(--text-dim); text-align: center; padding: 40px 20px; border: 1px dashed var(--line); border-radius: var(--radius); }