/* ============================================================
   Tornillería Lupserr — Componentes: nav, footer, whatsapp
   Paleta: azul royal + dorado metálico
   ============================================================ */

/* ── Navbar ────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0.6rem 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.navbar.scrolled {
  background: rgba(6,13,40,0.97);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(212,160,23,0.25);
}
.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar__logo {
  display: flex;
  flex-direction: row;
  align-items: center;
  line-height: 1;
  gap: 0.75rem;
  text-decoration: none;
}
.navbar__logo-img {
  height: 70px;
  width: auto;
  display: block;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.35));
}
.navbar__logo-text {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.4rem;
  line-height: 1;
}
.navbar__logo-top {
  font-family: var(--font-titulo);
  font-size: 1.25rem !important;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-crema) !important;
}
.navbar__logo-bottom {
  font-family: var(--font-titulo);
  font-size: 1.25rem !important;
  letter-spacing: 0.18em;
  font-weight: 700;
  line-height: 1;
  background: var(--gradient-dorado);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.navbar__logo span {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-dorado-light);
  margin-top: 2px;
}
.navbar__nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
.navbar__nav a {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(247,243,236,0.85);
  transition: color var(--transition);
  position: relative;
}
.navbar__nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-dorado);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.navbar__nav a:hover,
.navbar__nav a.active { color: var(--color-dorado-light); }
.navbar__nav a:hover::after,
.navbar__nav a.active::after { transform: scaleX(1); }

/* Hamburguesa */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  padding: 4px;
}
.navbar__hamburger span {
  display: block;
  height: 2px;
  background: var(--color-dorado-light);
  border-radius: 2px;
  transition: all var(--transition);
}
.navbar__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__hamburger.open span:nth-child(2) { opacity: 0; }
.navbar__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.navbar__mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--color-azul);
  border-top: 1px solid rgba(212,160,23,0.25);
  padding: 1rem 0;
}
.navbar__mobile.open { display: flex; }
.navbar__mobile a {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(247,243,236,0.85);
  padding: 0.8rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--transition), color var(--transition);
}
.navbar__mobile a:hover { background: rgba(212,160,23,0.15); color: var(--color-dorado-light); }

@media (max-width: 768px) {
  .navbar__nav { display: none; }
  .navbar__hamburger { display: flex; }
  .navbar__logo-img { height: 48px; }
  .navbar__logo-top,
  .navbar__logo-bottom { font-size: 1rem !important; letter-spacing: 0.12em !important; }
  .navbar__logo-text { gap: 0.3rem; }
}
@media (max-width: 480px) {
  .navbar__logo-img { height: 40px; }
  .navbar__logo-top { display: none; }
  .navbar__logo-bottom { font-size: 1.1rem !important; }
}

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 6.5rem;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('../img/hero-bg.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(4,12,45,0.92) 0%,
    rgba(4,12,45,0.88) 30%,
    rgba(4,12,45,0.38) 55%,
    rgba(4,12,45,0.15) 80%,
    rgba(4,12,45,0.04) 100%
  );
}
@media (max-width: 900px) {
  .hero__bg::after {
    background: linear-gradient(
      180deg,
      rgba(6,13,40,0.78) 0%,
      rgba(6,13,40,0.85) 55%,
      rgba(6,13,40,0.92) 100%
    );
  }
}
.hero__accent {
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(212,160,23,0.22) 0%, rgba(212,160,23,0.06) 45%, transparent 70%);
  pointer-events: none;
}
.hero__accent--top {
  position: absolute;
  top: -120px;
  left: -120px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(30,84,183,0.3) 0%, transparent 65%);
  pointer-events: none;
}
.hero__content {
  position: relative;
  z-index: 1;
  max-width: 750px;
}
.hero__eyebrow {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-dorado-light);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.hero__eyebrow::before {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--gradient-dorado);
}
.hero__title {
  color: var(--color-crema);
  margin-bottom: 1.2rem;
  text-shadow: 0 2px 16px rgba(0,0,0,0.3);
}
.hero__title em {
  font-style: normal;
  background: var(--gradient-dorado);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  filter: drop-shadow(0 2px 4px rgba(168,126,10,0.4));
}
.hero__subtitle {
  font-size: 1.15rem;
  color: rgba(247,243,236,0.8);
  margin-bottom: 2.5rem;
  max-width: 520px;
  line-height: 1.7;
}
.hero__cta { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(232,185,35,0.55);
  animation: bounce 2s infinite;
}
.hero__scroll::after {
  content: '';
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(232,185,35,0.55), transparent);
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ── Sección categorías ────────────────────────────────────── */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}
.category-card {
  background: var(--color-blanco);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  cursor: pointer;
  will-change: transform;
  text-decoration: none;
  display: block;
  border: 2px solid transparent;
}
.category-card:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: var(--shadow-azul);
  background: var(--color-azul);
  border-color: var(--color-dorado);
}
.category-card:hover .category-card__name { color: var(--color-dorado-light); }
.category-card:hover .category-card__icon { color: var(--color-dorado-light); transform: scale(1.1); }
.category-card__icon {
  font-size: 2.2rem;
  margin-bottom: 0.6rem;
  display: block;
  color: var(--color-azul);
  transition: color var(--transition), transform var(--transition);
}
.category-card__name {
  font-family: var(--font-titulo);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--color-azul);
  transition: color var(--transition);
}

/* ── Sección "¿Por qué nosotros?" ──────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 2rem;
}
.feature-item { text-align: center; }
.feature-item__icon {
  width: 64px;
  height: 64px;
  background: var(--gradient-dorado);
  border: 2px solid var(--color-dorado-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.6rem;
  color: var(--color-azul);
  box-shadow: var(--shadow-dorado), inset 0 1px 2px rgba(255,255,255,0.5);
}
.feature-item__title {
  font-family: var(--font-titulo);
  font-size: 1.3rem;
  color: var(--color-azul);
  margin-bottom: 0.4rem;
}
.feature-item__desc { font-size: 0.9rem; }

/* ── CTA final ─────────────────────────────────────────────── */
.cta-section {
  background-color: var(--color-azul);
  background-image:
    radial-gradient(circle at 20% 80%, rgba(30,84,183,0.35) 0%, transparent 55%),
    repeating-linear-gradient(
      -45deg, transparent, transparent 26px,
      rgba(255,255,255,0.07) 26px, rgba(255,255,255,0.07) 27px
    );
  text-align: center;
  padding: 5rem 0;
  border-top: 1px solid rgba(212,160,23,0.25);
  border-bottom: 1px solid rgba(212,160,23,0.25);
}

/* ── Filtros de productos ──────────────────────────────────── */
.category-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}
.filter-btn {
  padding: 0.5rem 1.2rem;
  border-radius: 20px;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--color-blanco);
  color: var(--color-azul);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}
.filter-btn:hover {
  border-color: var(--color-dorado);
  color: var(--color-dorado-dark);
}
.filter-btn.active {
  background: var(--gradient-dorado);
  color: var(--color-azul);
  box-shadow: var(--shadow-dorado);
  border-color: var(--color-dorado-dark);
}

/* ── Página de contacto ────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.contact-form label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-azul);
  margin-bottom: 0.4rem;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 2px solid var(--color-crema-dark);
  border-radius: var(--radius);
  font-family: var(--font-cuerpo);
  font-size: 1rem;
  color: var(--color-azul);
  background: var(--color-blanco);
  transition: border-color var(--transition), box-shadow var(--transition);
  margin-bottom: 1.2rem;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-dorado);
  box-shadow: 0 0 0 3px rgba(212,160,23,0.18);
}
.contact-form textarea { resize: vertical; min-height: 130px; }
.contact-info__item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}
.contact-info__icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
  color: var(--color-dorado-dark);
}
.contact-info__label {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-dorado-dark);
  margin-bottom: 0.15rem;
}
.contact-info__value { font-size: 0.95rem; }
.map-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-top: 2rem;
  aspect-ratio: 16/9;
  border: 2px solid var(--color-dorado);
}
.map-wrapper iframe { width: 100%; height: 100%; border: none; }

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* ── Quiénes Somos — grids responsive ──────────────────────── */
.qs-grid-historia {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.qs-grid-datos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: stretch;
}

@media (max-width: 768px) {
  .qs-grid-historia {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  /* La imagen va debajo del texto en móvil */
  .qs-grid-historia > div:last-child {
    aspect-ratio: 4/3;
    width: 100%;
  }
  .qs-grid-datos {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  /* Mapa con altura fija razonable en móvil */
  .qs-grid-datos .map-wrapper {
    min-height: 260px !important;
    height: 260px;
    flex: none !important;
    aspect-ratio: unset !important;
  }
}

/* ── Detalle de producto ───────────────────────────────────── */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  padding-top: 6rem;
}
.product-detail__img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 1;
  border: 3px solid var(--color-dorado);
}
.product-detail__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-detail__cat {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-dorado-dark);
  margin-bottom: 0.5rem;
}
.product-detail__title { margin-bottom: 0.5rem; }
.product-detail__price {
  font-family: var(--font-ui);
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--gradient-dorado);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  margin: 1rem 0;
}
.product-detail__desc {
  font-size: 1rem;
  line-height: 1.75;
  color: #374151;
  margin-bottom: 2rem;
}
@media (max-width: 768px) {
  .product-detail { grid-template-columns: 1fr; padding-top: 5rem; gap: 2rem; }
}

/* ── Footer ────────────────────────────────────────────────── */
.footer {
  background: var(--color-azul);
  background-image:
    radial-gradient(circle at 10% 20%, rgba(30,84,183,0.35) 0%, transparent 50%),
    repeating-linear-gradient(
      45deg, transparent, transparent 20px,
      rgba(232,185,35,0.015) 20px, rgba(232,185,35,0.015) 21px
    );
  color: rgba(247,243,236,0.75);
  padding: 4rem 0 1.5rem;
  border-top: 3px solid var(--color-dorado);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer__brand-name {
  font-family: var(--font-titulo);
  font-size: 1.8rem;
  background: var(--gradient-dorado);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  letter-spacing: 0.06em;
}
.footer__brand-tagline {
  font-size: 0.85rem;
  margin-top: 0.4rem;
  margin-bottom: 1.2rem;
  color: rgba(247,243,236,0.7);
}
.footer__heading {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-dorado-light);
  margin-bottom: 1rem;
}
.footer__links { display: flex; flex-direction: column; gap: 0.5rem; }
.footer__links a {
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--color-dorado-light); }
.footer__contact-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}
.footer__bottom {
  border-top: 1px solid rgba(212,160,23,0.18);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.footer__bottom a { transition: color var(--transition); }
.footer__bottom a:hover { color: var(--color-dorado-light); }

@media (max-width: 768px) {
  .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer__bottom { justify-content: center; text-align: center; }
}

/* ── WhatsApp flotante ─────────────────────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 999;
  width: 56px;
  height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.45);
  transition: transform var(--transition), box-shadow var(--transition);
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37,211,102,0.6);
}
.whatsapp-float svg { width: 28px; height: 28px; fill: #fff; }
.whatsapp-pulse {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border-radius: 50%;
  background: rgba(37,211,102,0.4);
  animation: wapulse 2.5s ease-out infinite;
}
@keyframes wapulse {
  0%   { transform: scale(1);   opacity: 0.8; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* ── Breadcrumb ────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--color-gris);
  margin-bottom: 2rem;
}
.breadcrumb a { transition: color var(--transition); }
.breadcrumb a:hover { color: var(--color-dorado-dark); }
.breadcrumb span { color: var(--color-gris-light); }

/* ── Page header (páginas internas) ───────────────────────── */
.page-header {
  background-color: var(--color-azul);
  background-image:
    radial-gradient(circle at 20% 80%, rgba(30,84,183,0.35) 0%, transparent 55%),
    repeating-linear-gradient(
      -45deg, transparent, transparent 26px,
      rgba(255,255,255,0.07) 26px, rgba(255,255,255,0.07) 27px
    );
  padding: 6.5rem 0 2.5rem;
  text-align: center;
}
.page-header h1 { color: var(--color-crema); }
.page-header h1 em {
  font-style: normal;
  background: var(--gradient-dorado);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.page-header p  { color: rgba(247,243,236,0.75); margin-top: 0.75rem; }