/* ==========================================================================
   Discualco — Materiales Eléctricos Industriales
   Modern, light-toned single-page design
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  /* Color palette — premium industrial dark */
  --bg: #0a0f16;
  --bg-alt: #111a26;
  --surface: #141f2d;
  --surface-2: #1b2a3d;
  --surface-3: #1e2d3f;
  --ink: #eef5ff;
  --ink-soft: #d2def6;
  --ink-faint: #96aaca;
  --brand: #f38b2d;
  --brand-dark: #d06a0c;
  --brand-soft: rgba(243, 139, 45, 0.14);
  --brand-strong: rgba(243, 139, 45, 0.28);
  --accent: #e7efff;
  --line: rgba(165, 181, 204, 0.18);
  --success: #78d5a0;

  /* Spacing scale */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 48px;
  --s-8: 64px;
  --s-9: 96px;

  /* Type scale */
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: clamp(1.75rem, 3.5vw, 2.5rem);
  --fs-2xl: clamp(2.25rem, 5vw, 3.5rem);
  --fs-hero: clamp(2.75rem, 7vw, 5rem);

  /* Radii & shadows */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-full: 999px;
  --shadow-sm: 0 1px 3px rgba(16, 32, 58, 0.06), 0 1px 2px rgba(16, 32, 58, 0.04);
  --shadow-md: 0 8px 24px rgba(16, 32, 58, 0.08);
  --shadow-lg: 0 20px 50px rgba(16, 32, 58, 0.12);

  /* Layout */
  --container: 1200px;
  --nav-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset / base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--ink);
  background:
    radial-gradient(circle at top, rgba(243, 139, 45, 0.15), transparent 30%),
    linear-gradient(180deg, #090d13 0%, var(--bg) 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
  padding: 0;
}

h1,
h2,
h3,
h4 {
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

/* Visible focus for keyboard users */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--s-5);
}

.section {
  padding-block: var(--s-9);
}

.section--alt {
  background: var(--bg-alt);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: var(--s-4);
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--brand);
  border-radius: var(--r-full);
}

.section-title {
  font-size: var(--fs-2xl);
  margin-bottom: var(--s-4);
}

.section-lead {
  font-size: var(--fs-md);
  color: var(--ink-soft);
  max-width: 60ch;
}

.section-head {
  max-width: 720px;
  margin-bottom: var(--s-7);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: 14px 26px;
  font-size: var(--fs-base);
  font-weight: 600;
  border-radius: var(--r-full);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease),
    background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--brand), #ff9f45);
  color: #fff;
  box-shadow: 0 8px 20px rgba(242, 140, 40, 0.28);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--brand-dark), #ff9f45);
  box-shadow: 0 12px 28px rgba(242, 140, 40, 0.36);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn--ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.btn--light {
  background: #fff;
  color: var(--brand);
}

.btn--light:hover {
  background: var(--brand-soft);
}

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(10, 15, 22, 0.8);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  width: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-weight: 800;
  font-size: var(--fs-md);
  letter-spacing: 0.02em;
}

.brand__mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--brand), #3f8bff);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.brand__mark svg {
  width: 22px;
  height: 22px;
}

.brand__name {
  line-height: 1;
}

.brand__name small {
  display: block;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
  text-transform: uppercase;
  margin-top: 3px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--s-6);
}

.nav__links a {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--ink-soft);
  position: relative;
  padding-block: 6px;
  transition: color 0.18s var(--ease);
}

.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--brand);
  border-radius: var(--r-full);
  transition: width 0.22s var(--ease);
}

.nav__links a:hover {
  color: var(--brand);
}

.nav__links a:hover::after {
  width: 100%;
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}

.nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--r-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav__toggle svg {
  width: 22px;
  height: 22px;
  color: var(--ink);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(243, 139, 45, 0.14), transparent 60%),
    linear-gradient(180deg, rgba(8, 12, 18, 0.98) 0%, var(--bg) 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 100%);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--s-8);
  align-items: center;
  padding-block: var(--s-9);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 8px 16px;
  background: rgba(243, 139, 45, 0.08);
  color: #f7c38d;
  border: 1px solid rgba(243, 139, 45, 0.28);
  border-radius: var(--r-full);
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: var(--s-5);
}

.hero__badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(243, 139, 45, 0.18);
}

.hero__title {
  font-size: var(--fs-hero);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--s-5);
}

.hero__title .accent {
  color: var(--brand);
}

.hero__title .num {
  color: var(--accent);
}

.hero__text {
  font-size: var(--fs-md);
  color: var(--ink-soft);
  max-width: 52ch;
  margin-bottom: var(--s-6);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-bottom: var(--s-7);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-4);
  padding-top: var(--s-6);
  border-top: 1px solid var(--line);
}

.stat__value {
  font-size: var(--fs-lg);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.stat__label {
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin-top: 2px;
}

.hero__media {
  position: relative;
}

.hero__media .frame {
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
}

.hero__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero__card {
  position: absolute;
  left: -24px;
  bottom: 28px;
  display: flex;
  align-items: center;
  gap: var(--s-3);
  background: rgba(17, 25, 34, 0.95);
  color: var(--ink);
  padding: var(--s-4) var(--s-5);
  border-radius: var(--r-md);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  border: 1px solid var(--line);
}

.hero__card .ico {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--brand-soft);
  color: var(--brand);
}

.hero__card .ico svg {
  width: 24px;
  height: 24px;
}

.hero__card strong {
  display: block;
  font-size: var(--fs-sm);
}

.hero__card span {
  font-size: 0.78rem;
  color: var(--ink-faint);
}

/* ---------- Feature cards (Quiénes somos) ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-5);
}

.feature {
  background: linear-gradient(180deg, rgba(20, 31, 45, 0.98), rgba(15, 22, 31, 0.98));
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: var(--s-6);
  box-shadow: 0 16px 32px rgba(2, 7, 12, 0.18);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease);
}

.feature:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 38px rgba(2, 7, 12, 0.26);
  border-color: rgba(243, 139, 45, 0.5);
}

.feature__ico {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(243, 139, 45, 0.16), rgba(243, 139, 45, 0.04));
  color: var(--brand);
  margin-bottom: var(--s-4);
  border: 1px solid rgba(243, 139, 45, 0.18);
}

.feature__ico svg {
  width: 26px;
  height: 26px;
}

.feature h3 {
  font-size: var(--fs-md);
  margin-bottom: var(--s-2);
}

.feature p {
  font-size: var(--fs-sm);
  color: var(--ink-soft);
}

/* ---------- ISO / quality band ---------- */
.quality {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-8);
  align-items: center;
}

.quality__media {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.22);
  border: 1px solid var(--line);
}

.quality__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.quality__badge {
  position: absolute;
  left: 20px;
  bottom: 20px;
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: 12px 18px 12px 12px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(6px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
}

.quality__badge-logo {
  flex: none;
  min-width: 52px;
  padding: 8px 10px;
  border-radius: 10px;
  background: linear-gradient(135deg, #0b5fff, #3f8bff);
  color: #fff;
  font-weight: 800;
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  text-align: center;
}

.quality__badge-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.quality__badge-text strong {
  font-size: var(--fs-sm);
  color: var(--ink);
}

.quality__badge-text small {
  font-size: 0.72rem;
  color: var(--ink-faint);
}

.quality__list {
  display: grid;
  gap: var(--s-4);
  margin-top: var(--s-5);
}

.quality__list li {
  display: flex;
  gap: var(--s-3);
  align-items: flex-start;
}

.quality__list .check {
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(18, 161, 80, 0.12);
  color: var(--success);
  margin-top: 2px;
}

.quality__list .check svg {
  width: 16px;
  height: 16px;
}

.quality__list strong {
  display: block;
}

.quality__list span {
  font-size: var(--fs-sm);
  color: var(--ink-soft);
}

/* ---------- Industries ---------- */
.industries {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-4);
}

.industry {
  position: relative;
  overflow: hidden;
  min-height: 280px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), border-color 0.18s var(--ease);
}

.industry:hover {
  transform: translateY(-3px);
  border-color: var(--brand);
  box-shadow: var(--shadow-md);
}

.industry img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  display: block;
  filter: saturate(0.9) contrast(1.08) brightness(0.85);
}

.industry__content {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--s-4);
  background: linear-gradient(180deg, rgba(10, 19, 35, 0), rgba(10, 19, 35, 0.85));
  color: #fff;
}

.industry__content > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.industry__content small {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
}

.industries__note {
  margin-top: var(--s-5);
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 10px 18px;
  background: #fff7e8;
  border: 1px solid #ffe1a8;
  color: #8a5a00;
  border-radius: var(--r-full);
  font-size: var(--fs-sm);
  font-weight: 600;
}

/* ---------- Products catalog ---------- */
.catalog {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-3);
}

.catalog li {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4) var(--s-5);
  background: rgba(23, 35, 52, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--ink-soft);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), transform 0.18s var(--ease);
}

.catalog li:hover {
  border-color: var(--brand);
  color: var(--ink);
  transform: translateX(3px);
}

.catalog li::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 2px;
  background: var(--brand);
  transform: rotate(45deg);
}

/* ---------- Brands ---------- */
.brands {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
}

.brand-chip {
  padding: 12px 22px;
  background: rgba(20, 32, 45, 0.9);
  border: 1px solid var(--line);
  border-radius: var(--r-full);
  font-weight: 700;
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  transition: all 0.18s var(--ease);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}

.brand-chip:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: var(--brand-soft);
}

/* ---------- Contact ---------- */
.contact {
  background:
    radial-gradient(900px 400px at 100% 0%, rgba(243, 139, 45, 0.10), transparent 55%),
    linear-gradient(180deg, rgba(14, 20, 28, 0.96), var(--bg-alt));
}

.contact__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--s-8);
  align-items: start;
}

.contact__intro p {
  color: var(--ink-soft);
  font-size: var(--fs-md);
  margin-bottom: var(--s-5);
}

.contact__quick {
  display: grid;
  gap: var(--s-3);
}

.contact__quick a {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4);
  background: rgba(20, 32, 45, 0.9);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  font-weight: 600;
  transition: all 0.18s var(--ease);
}

.contact__quick a:hover {
  border-color: rgba(243, 139, 45, 0.6);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.18);
}

.contact__quick .ico {
  width: 42px;
  height: 42px;
  flex: none;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: var(--brand-soft);
  color: var(--brand);
}

.contact__quick .ico svg {
  width: 22px;
  height: 22px;
}

.contact__quick small {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.contact__cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-4);
}

.ccard {
  background: rgba(20, 32, 45, 0.9);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: var(--s-5);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.18);
}

.ccard small {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: var(--s-2);
}

.ccard a,
.ccard p {
  font-weight: 600;
  color: var(--ink);
  word-break: break-word;
}

.ccard a:hover {
  color: var(--brand);
}

/* ---------- Footer ---------- */
.site-footer {
  background: #070c12;
  color: #c7d2e4;
  padding-block: var(--s-8) var(--s-6);
  border-top: 1px solid var(--line);
}

.footer__top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-5);
  padding-bottom: var(--s-6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  color: #fff;
  font-weight: 800;
  font-size: var(--fs-md);
}

.footer__brand .brand__mark {
  box-shadow: none;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-5);
}

.footer__links a {
  font-size: var(--fs-sm);
  color: #aebbd2;
  transition: color 0.18s var(--ease);
}

.footer__links a:hover {
  color: #fff;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-3);
  padding-top: var(--s-5);
  font-size: var(--fs-sm);
  color: #8494b0;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: var(--s-7);
    padding-block: var(--s-8);
  }

  .hero__media {
    order: -1;
    max-width: 560px;
  }

  .hero__card {
    left: 12px;
  }

  .features {
    grid-template-columns: repeat(2, 1fr);
  }

  .quality {
    grid-template-columns: 1fr;
    gap: var(--s-6);
  }

  .industries {
    grid-template-columns: repeat(2, 1fr);
  }

  .catalog {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: var(--s-6);
  }
}

@media (max-width: 720px) {
  .section {
    padding-block: var(--s-8);
  }

  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__toggle {
    display: inline-flex;
  }

  .site-header.nav-open .nav__links {
    display: flex;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: var(--s-3) var(--s-5) var(--s-5);
  }

  .site-header.nav-open .nav__links a {
    padding: var(--s-4) 0;
    border-bottom: 1px solid var(--line);
    font-size: var(--fs-base);
  }

  .site-header.nav-open .nav__links a::after {
    display: none;
  }

  .hero__stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--s-5);
  }

  .features {
    grid-template-columns: 1fr;
  }

  .industries {
    grid-template-columns: 1fr;
  }

  .catalog {
    grid-template-columns: 1fr;
  }

  .contact__cards {
    grid-template-columns: 1fr;
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}