/* ============================================================
   Identidad visual — Ferretería & Minería
   Paleta: grafito industrial + ámbar de seguridad + óxido
   Tipografía: Oswald (condensada, señalética) + Inter (cuerpo)
              + JetBrains Mono (fichas técnicas / códigos)
   ============================================================ */

:root {
  --graphite-950: #14171a;
  --graphite-900: #1a1d20;
  --graphite-800: #24282c;
  --graphite-700: #32373c;
  --graphite-600: #4a5157;
  --steel-400: #8a9199;
  --paper-100: #f5f3ee;
  --paper-050: #faf8f4;
  --amber-500: #f2a900;
  --amber-400: #ffc233;
  --rust-600: #c2410c;
  --rust-500: #d9530f;
  --line: rgba(245, 243, 238, 0.12);

  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--graphite-900);
  color: var(--paper-100);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
}

/* --- Hazard divider: the signature element ---------------------
   A thin diagonal-stripe bar, used sparingly at section seams,
   nodding to the caution tape / warning signage on-site at any
   mining or hardware yard. Never decorative filler — only marks
   real section boundaries. */
.hazard-rule {
  height: 6px;
  width: 100%;
  background: repeating-linear-gradient(
    -45deg,
    var(--amber-500),
    var(--amber-500) 14px,
    var(--graphite-950) 14px,
    var(--graphite-950) 28px
  );
}

/* --- Header ------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--graphite-950);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 20px;
}

.logo-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-img {
  height: 48px;
  width: auto;
}

.logo-mark .logo-text {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--paper-100);
}

.logo-mark .logo-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber-500);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.logo-placeholder {
  border: 1px dashed var(--steel-400);
  color: var(--steel-400);
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 3px;
  text-transform: none;
  letter-spacing: normal;
}

.nav-links {
  display: flex;
  gap: 26px;
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-links a {
  text-decoration: none;
  color: var(--steel-400);
  border-bottom: 2px solid transparent;
  padding-bottom: 4px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--paper-100);
  border-color: var(--amber-500);
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--amber-500);
  color: var(--graphite-950);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 11px 18px;
  border-radius: 3px;
  transition: background 0.15s ease, transform 0.15s ease;
  white-space: nowrap;
}

.btn-whatsapp:hover { background: var(--amber-400); transform: translateY(-1px); }

.btn-whatsapp svg { width: 18px; height: 18px; flex: none; }

/* --- Placeholder blocks (content the client still owes us) --- */

.fill-slot {
  border: 1px dashed var(--steel-400);
  background: rgba(245, 243, 238, 0.03);
  border-radius: 4px;
  padding: 24px;
  color: var(--steel-400);
  font-family: var(--font-mono);
  font-size: 13px;
  text-align: center;
  line-height: 1.7;
}

.fill-slot strong {
  display: block;
  color: var(--amber-500);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.photo-slot {
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Hero ----------------------------------------------------- */

.hero {
  padding: 84px 0 64px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(20,23,26,0) 0%, var(--graphite-900) 100%),
    repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 120px);
  pointer-events: none;
}

.hero .wrap { position: relative; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-500);
  margin: 0 0 14px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1.02;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin: 0 0 20px;
  max-width: 14ch;
}

.hero .lede {
  font-size: 18px;
  color: var(--steel-400);
  max-width: 56ch;
  margin: 0 0 34px;
}

.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  color: var(--paper-100);
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 10px 18px;
  border-radius: 3px;
  transition: border-color 0.15s ease;
}

.btn-secondary:hover { border-color: var(--amber-500); }

.btn-secondary svg { width: 16px; height: 16px; flex: none; }

/* --- Section headings ----------------------------------------- */

.section {
  padding: 64px 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 30px;
}

.section-num {
  font-family: var(--font-mono);
  color: var(--amber-500);
  font-size: 14px;
}

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 36px);
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin: 0;
}

/* --- Misión / Visión panels ------------------------------------ */

.mv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.mv-card {
  background: var(--graphite-800);
  border: 1px solid var(--line);
  border-top: 3px solid var(--amber-500);
  border-radius: 4px;
  padding: 30px 28px;
}

.mv-card.vision { border-top-color: var(--rust-500); }

.mv-card .mv-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel-400);
  margin: 0 0 12px;
}

.mv-card p { margin: 0; color: var(--paper-100); font-size: 15.5px; }

/* --- Portal buttons (Minería / Ferretería) ---------------------- */

.portal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.portal-card {
  position: relative;
  display: block;
  background: var(--graphite-800);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 40px 32px;
  text-decoration: none;
  color: var(--paper-100);
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.portal-card:hover { transform: translateY(-4px); border-color: var(--amber-500); }

.portal-card .portal-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber-500);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.portal-card h3 {
  font-family: var(--font-display);
  font-size: 32px;
  text-transform: uppercase;
  margin: 10px 0 12px;
}

.portal-card p {
  color: var(--steel-400);
  margin: 0 0 26px;
  max-width: 34ch;
}

.portal-card .portal-go {
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--paper-100);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.portal-card .portal-go svg { width: 16px; height: 16px; transition: transform 0.18s ease; }
.portal-card:hover .portal-go svg { transform: translateX(4px); }

.portal-card.mining::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217,83,15,0.18), transparent 70%);
}

.portal-card.hardware::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242,169,0,0.18), transparent 70%);
}

/* --- Sub-page hero (smaller) ------------------------------------ */

.subhero {
  padding: 52px 0 40px;
  border-bottom: 1px solid var(--line);
}

.subhero .eyebrow { margin-bottom: 10px; }

.subhero h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 5vw, 50px);
  text-transform: uppercase;
  margin: 0 0 14px;
}

.subhero .lede { color: var(--steel-400); max-width: 60ch; margin: 0; font-size: 16.5px; }

/* --- Materials grid (Minería) ------------------------------------ */

.materials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.material-card {
  background: var(--graphite-800);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 22px 24px;
}

.material-card h4 {
  font-family: var(--font-display);
  font-size: 19px;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin: 0 0 8px;
  color: var(--amber-500);
}

.material-card .m-desc { font-size: 14.5px; color: var(--paper-100); margin: 0 0 12px; }

.material-card dl { margin: 0; font-size: 13.5px; }

.material-card dt {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 11px;
  color: var(--steel-400);
  margin-top: 10px;
}

.material-card dd { margin: 3px 0 0; color: var(--paper-100); }

.photo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 10px;
}

/* --- Ferretería toggles ------------------------------------------- */

.toggle-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 8px;
}

.toggle-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: var(--graphite-800);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 24px 26px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 21px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--paper-100);
  transition: border-color 0.15s ease;
}

.toggle-btn:hover { border-color: var(--amber-500); }

.toggle-btn .count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel-400);
  text-transform: none;
  letter-spacing: normal;
}

.toggle-btn .chev {
  width: 20px;
  height: 20px;
  transition: transform 0.2s ease;
  flex: none;
}

.toggle-btn[aria-expanded="true"] .chev { transform: rotate(180deg); }

.toggle-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.28s ease;
  margin-bottom: 24px;
}

.toggle-panel.open { grid-template-rows: 1fr; }

.toggle-panel-inner { overflow: hidden; }

.panel-content {
  background: var(--graphite-800);
  border: 1px solid var(--line);
  border-top: none;
  border-radius: 0 0 5px 5px;
  padding: 26px;
  margin-top: -1px;
}

/* Brands */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}

.brand-chip {
  background: var(--graphite-700);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 10px 12px;
  font-size: 13.5px;
  text-align: center;
}

/* Products */
.category-block { margin-bottom: 22px; }

.category-block:last-child { margin-bottom: 0; }

.category-title {
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--amber-500);
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
  margin: 0 0 12px;
}

.product-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 24px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
  color: var(--paper-100);
}

.product-list li {
  padding: 6px 0;
  border-bottom: 1px solid var(--line);
}

/* --- Footer -------------------------------------------------- */

footer {
  border-top: 1px solid var(--line);
  padding: 34px 0;
  margin-top: 40px;
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

footer .foot-brand {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--steel-400);
  font-size: 14px;
}

footer .foot-links {
  display: flex;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--steel-400);
}

footer .foot-links a { text-decoration: none; }
footer .foot-links a:hover { color: var(--amber-500); }

/* --- Floating WhatsApp button (mobile-friendly, all pages) ----- */

.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--amber-500);
  box-shadow: 0 6px 18px rgba(0,0,0,0.35);
  text-decoration: none;
}

.whatsapp-float svg { width: 28px; height: 28px; color: var(--graphite-950); }

/* --- Responsive ------------------------------------------------ */

@media (max-width: 760px) {
  .nav-links { display: none; }
  .mv-grid,
  .portal-grid,
  .materials-grid,
  .photo-grid,
  .toggle-grid,
  .product-list {
    grid-template-columns: 1fr;
  }
  .brand-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .portal-card, .toggle-panel, .toggle-btn .chev, .btn-whatsapp, .portal-card .portal-go svg {
    transition: none;
  }
}