:root {
  --blue: #1853a4;
  --blue-dark: #123f7d;
  --blue-soft: #e8f0fb;
  --gold: #f4b400;
  --bg: #f5f5f5;
  --surface: #ffffff;
  --text: #1f2733;
  --muted: #5f6b7a;
  --ar-blue: #74acdf;
  --border: #e3e7ec;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(18, 63, 125, .07);
  --max: 1180px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 22px; }

/* Header */
.site-header { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 22px; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; }
.brand-logo img { height: 44px; width: auto; display: block; }
.brand-tag { color: var(--blue); font-weight: 700; font-size: .9rem; letter-spacing: 1.5px; text-transform: uppercase; }
.distribuidor { display: flex; align-items: center; gap: 8px; font-size: .8rem; color: var(--muted); }
.distribuidor img { border-radius: 2px; box-shadow: 0 0 0 1px var(--border); }

/* Nav */
.site-nav { background: var(--surface); border-top: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; }
.nav-list { list-style: none; display: flex; flex-wrap: wrap; gap: 2px; margin: 0; padding: 0; }
.nav-list a { display: block; padding: 14px 16px; color: var(--text); font-size: .92rem; font-weight: 500; border-bottom: 3px solid transparent; transition: .15s; }
.nav-list a:hover { color: var(--blue); }
.nav-list a.active { color: var(--blue); border-bottom-color: var(--blue); }
.nav-toggle, .nav-toggle-label { display: none; }

/* Flash */
.flash { padding: 12px 16px; border-radius: var(--radius); margin: 16px 0; font-size: .95rem; }
.flash-success { background: #e8f6ec; border: 1px solid #56b673; color: #1c5b30; }
.flash-error { background: #fdeaea; border: 1px solid #e07171; color: #8d2222; }

.main-content { padding-top: 0; padding-bottom: 56px; }

/* Buttons */
.btn { display: inline-block; padding: 12px 22px; border-radius: 999px; background: var(--surface); color: var(--text); border: 1px solid var(--border); font-weight: 600; font-size: .92rem; cursor: pointer; transition: .15s; }
.btn:hover { border-color: var(--blue); color: var(--blue); }
.btn-primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }
.btn-ghost { background: rgba(255, 255, 255, .55); border-color: rgba(255, 255, 255, .8); color: #fff; }
.btn-ghost:hover { background: #fff; color: var(--blue); }
.btn-sm { padding: 7px 14px; font-size: .82rem; }
.btn-block { width: 100%; text-align: center; }
.btn-danger { border-color: #e07171; color: #b13434; }
.btn-danger:hover { background: #e07171; color: #fff; }

/* Hero */
.hero {
  position: relative;
  margin: 0 -22px;
  padding: 96px 22px;
  color: #fff;
  text-align: center;
  background:
    linear-gradient(rgba(8, 26, 54, .55), rgba(8, 26, 54, .75)),
    radial-gradient(1200px 500px at 70% -20%, #2b6fd0, transparent),
    linear-gradient(135deg, #0a1e3f 0%, #143f7d 60%, #1853a4 100%);
}
.hero-text { max-width: 820px; margin: 0 auto; }
.eyebrow { text-transform: uppercase; letter-spacing: 3px; font-size: .74rem; color: #bcd4f3; font-weight: 700; }
.hero h1 { font-size: 2.8rem; margin: 14px 0 16px; line-height: 1.15; font-weight: 800; }
.hero p { color: #dce6f4; font-size: 1.12rem; max-width: 640px; margin: 0 auto; }
.hero-actions { margin-top: 28px; display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

/* Sections */
.section { padding: 56px 0; }
.section + .section { padding-top: 8px; }
.section h2 { font-size: 1.7rem; margin: 0 0 28px; color: var(--blue); font-weight: 800; }
.grid { display: grid; gap: 20px; }
.grid-cats { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
.grid-products { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.grid-news { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

.cat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; transition: .15s; box-shadow: var(--shadow); }
.cat-card:hover { border-color: var(--blue); transform: translateY(-3px); }
.cat-card h3 { margin: 0 0 10px; color: var(--text); }
.link-arrow { color: var(--blue); font-size: .88rem; font-weight: 600; }

/* Product card */
.product-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: .15s; box-shadow: var(--shadow); }
.product-card:hover { border-color: var(--blue); transform: translateY(-3px); }
.product-thumb { aspect-ratio: 4/3; background: #eef2f7; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; }
.no-image { color: #c2ccda; font-weight: 800; font-size: 2rem; letter-spacing: 2px; }
.product-info { padding: 16px 18px; display: flex; flex-direction: column; gap: 6px; }
.product-cat { font-size: .72rem; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); font-weight: 700; }
.product-info h3 { margin: 0; font-size: 1.2rem; color: var(--blue); }
.product-info p { margin: 0; color: var(--muted); font-size: .9rem; }
.product-price { margin-top: 6px; font-weight: 700; color: var(--text); }

/* About strip */
.about-strip { background: var(--blue-soft); margin: 0 -22px; padding-left: 22px; padding-right: 22px; border-radius: 0; }
.about-strip h2 { margin-bottom: 12px; }
.about-strip p { color: #34465c; max-width: 740px; margin-bottom: 20px; }

/* News card */
.news-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: .15s; }
.news-card:hover { border-color: var(--blue); transform: translateY(-3px); }
.news-card img { width: 100%; height: 160px; object-fit: cover; }
.news-card h3 { margin: 0; padding: 16px 18px; font-size: 1.05rem; color: var(--text); }

/* Footer */
.site-footer { background: #0e2444; color: #c7d4e6; margin-top: 24px; }
.footer-inner { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 30px; padding: 48px 22px; }
.footer-logo img { height: 38px; width: auto; }
.footer-logo .brand-tag { color: #9ec1ee; }
.footer-col h4 { margin: 0 0 14px; font-size: 1rem; color: #fff; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { padding: 4px 0; }
.footer-col a { color: #c7d4e6; }
.footer-col a:hover { color: #fff; }
.footer-col p { margin: 6px 0; color: #c7d4e6; }
.footer-flag { display: flex; align-items: center; gap: 8px; color: #c7d4e6; font-size: .85rem; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .12); font-size: .82rem; color: #9fb0c8; }
.footer-bottom .container { padding: 16px 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer-bottom a { color: #9ec1ee; }

/* Error page */
.error-page { text-align: center; padding: 90px 0; }
.error-page h1 { font-size: 4.5rem; margin: 0; color: var(--blue); }

@media (max-width: 760px) {
  .nav-toggle-label { display: block; padding: 14px 0; font-size: 1.4rem; cursor: pointer; color: var(--text); }
  .nav-list { display: none; width: 100%; flex-direction: column; }
  .nav-toggle:checked ~ .nav-list { display: flex; }
  .hero { padding: 64px 22px; }
  .hero h1 { font-size: 2rem; }
  .header-inner { padding: 12px 16px; gap: 10px; }
  .brand-logo img { height: 34px; }
  .distribuidor { font-size: .66rem; gap: 5px; text-align: right; line-height: 1.2; }
  .distribuidor img { width: 22px; height: auto; }
}

@media (max-width: 380px) {
  .distribuidor span { display: none; }
}

/* ---- Páginas públicas extra ---- */
.lead { font-size: 1.15rem; color: var(--muted); max-width: 760px; }

.breadcrumb { font-size: .85rem; color: var(--muted); padding: 22px 0 0; }
.breadcrumb a { color: var(--blue); }

/* Detalle de producto */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; padding: 32px 0 8px; }
.gallery-main { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--border); background: #eef2f7; }
.gallery-thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.gallery-thumbs img { width: 78px; height: 60px; object-fit: cover; border-radius: 8px; border: 1px solid var(--border); }
.product-summary h1 { font-size: 2.1rem; margin: 8px 0 12px; color: var(--text); }
.product-price.big { font-size: 1.7rem; font-weight: 800; color: var(--blue); margin: 16px 0; }
.product-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.specs-list { columns: 2; gap: 30px; list-style: none; padding: 0; }
.specs-list li { padding: 9px 0 9px 22px; position: relative; border-bottom: 1px solid var(--border); break-inside: avoid; }
.specs-list li::before { content: "▸"; color: var(--blue); position: absolute; left: 0; }

/* Formularios de contacto */
.contact-form { max-width: 560px; }
.contact-form label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 14px; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; margin-top: 6px; padding: 12px 14px; background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius); font-size: .95rem; font-family: inherit;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--blue); }
.contact-form textarea { min-height: 110px; resize: vertical; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 12px; }
.form-grid input { margin-top: 0; }

.contacto-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; }
.contacto-datos { list-style: none; padding: 0; margin: 22px 0 0; }
.contacto-datos li { padding: 9px 0; border-bottom: 1px solid var(--border); }
.contacto-datos a { color: var(--blue); }

/* Artículo de noticia */
.article { max-width: 800px; }
.article h1 { font-size: 2.1rem; margin: 8px 0; color: var(--text); }
.article-date { color: var(--muted); font-size: .85rem; }
.article-img { width: 100%; max-height: 420px; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--border); margin: 18px 0; }
.article-body p { margin: 0 0 14px; }

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