/* ============================================
   Spinroch Atelier - Estilos comunes y responsive
   Header, footer y patrones globales
   ============================================ */

:root {
  --primary: #2E1C11;
  --primary-soft: #483130;
  --bg: #F5F1EE;
  --beige: #B7A9A4;
  --text: #1E1E1E;
  --white: #ffffff;
  --line: rgba(46, 28, 17, 0.14);
  --shadow: 0 18px 50px rgba(46, 28, 17, 0.10);
  --container: 1380px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  overflow-x: hidden;
}

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

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

.container {
  width: min(calc(100% - 64px), var(--container));
  margin: 0 auto;
}

/* Tipografía y contenido responsive */
h1, h2, h3 {
  word-wrap: break-word;
}

/* ---------- HEADER ---------- */
.site-header {
  background: rgba(245, 241, 238, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(46, 28, 17, 0.06);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  min-height: 110px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 42px;
  font-size: 1.08rem;
  color: var(--primary-soft);
}

.nav.right {
  justify-content: flex-end;
}

.nav a {
  position: relative;
  transition: color 0.25s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -7px;
  width: 0;
  height: 1px;
  background: var(--primary);
  transition: width 0.25s ease;
}

.nav a:hover {
  color: var(--primary);
}

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

/* --- Dropdown desktop (Atelier / Servicios) --- */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.nav-dropdown-trigger::after {
  content: "▾";
  font-size: 0.7em;
  opacity: 0.8;
}

.nav-submenu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  max-height: 80vh;
  overflow-y: auto;
  margin: 0;
  padding: 12px 0;
  list-style: none;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 100;
}

.nav-dropdown:hover .nav-submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(4px);
}

.nav-dropdown:hover .nav-dropdown-trigger {
  color: var(--primary);
}

.nav-submenu li {
  margin: 0;
}

.nav-submenu a {
  display: block;
  padding: 10px 20px;
  font-size: 0.95rem;
  color: var(--primary-soft);
}

.nav-submenu a::after {
  display: none;
}

.nav-submenu a:hover {
  background: rgba(46, 28, 17, 0.06);
  color: var(--primary);
}

.logo {
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo img {
  width: 220px;
  max-width: 100%;
  object-fit: contain;
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: 0;
  color: var(--primary);
  font-size: 1.8rem;
  cursor: pointer;
  padding: 8px;
  line-height: 1;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  padding: 0 0 26px;
  color: var(--primary-soft);
}

.nav-mobile > a {
  padding: 12px 0;
  border-bottom: 1px solid rgba(46, 28, 17, 0.08);
}

/* Grupos expandibles en móvil (Atelier / Servicios) */
.nav-mobile-group {
  border-bottom: 1px solid rgba(46, 28, 17, 0.08);
}

.nav-mobile-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  background: none;
  border: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  text-align: left;
}

.nav-mobile-trigger::after {
  content: "▾";
  font-size: 0.85em;
  transition: transform 0.25s ease;
}

.nav-mobile-group.open .nav-mobile-trigger::after {
  transform: rotate(180deg);
}

.nav-mobile-submenu {
  list-style: none;
  margin: 0;
  padding: 0 0 8px 16px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.nav-mobile-group.open .nav-mobile-submenu {
  max-height: 1200px;
}

.nav-mobile-submenu li {
  margin: 0;
}

.nav-mobile-submenu a {
  display: block;
  padding: 8px 0;
  font-size: 0.95rem;
  color: var(--primary-soft);
  border-bottom: none;
}

.nav-mobile-submenu a:hover {
  color: var(--primary);
}

/* ---------- FOOTER ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 24px;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px 20px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
  color: var(--primary-soft);
}

.footer-top a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-top a:hover {
  color: var(--primary);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 12px;
  font-size: 0.95rem;
  color: var(--primary-soft);
}

.footer-nav a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-nav a:hover {
  color: var(--primary);
}

.footer-copy {
  text-align: center;
  font-size: 0.85rem;
  color: var(--primary-soft);
  margin-top: 14px;
}

/* ========== RESPONSIVE ========== */

/* Tablet / desktop pequeño */
@media (max-width: 1180px) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .nav.left,
  .nav.right {
    gap: 18px;
  }

  .nav {
    font-size: 1rem;
  }

  .nav-submenu {
    min-width: 240px;
  }

  .logo img {
    width: 190px;
  }

  .container {
    width: min(calc(100% - 48px), var(--container));
  }
}

/* Móvil / tablet: menú hamburguesa */
@media (max-width: 980px) {
  .container {
    width: min(calc(100% - 32px), var(--container));
  }

  .header-inner {
    grid-template-columns: auto 1fr auto;
    min-height: 86px;
    gap: 16px;
  }

  .nav {
    display: none;
  }

  .mobile-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-header.open .nav-mobile {
    display: flex;
  }

  .logo img {
    width: 180px;
  }

  /* Footer más compacto */
  .site-footer {
    padding: 22px 0 20px;
  }

  .footer-top {
    gap: 8px 14px;
    padding-bottom: 14px;
    margin-bottom: 14px;
    font-size: 0.9rem;
  }

  .footer-nav {
    gap: 6px 10px;
    font-size: 0.9rem;
  }
}

/* Móvil pequeño */
@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .header-inner {
    min-height: 72px;
  }

  .logo img {
    width: 160px;
  }

  .nav-mobile {
    gap: 14px;
    padding: 0 0 20px;
  }

  .site-footer {
    padding: 20px 0 18px;
  }

  .footer-top {
    flex-direction: column;
    gap: 8px;
    text-align: center;
    font-size: 0.875rem;
  }

  .footer-nav {
    font-size: 0.85rem;
  }

  .footer-copy {
    font-size: 0.8rem;
    margin-top: 12px;
  }
}

/* Utilidades responsive genéricas (evitar overflow) */
@media (max-width: 980px) {
  .hero-card,
  .hero-content {
    min-height: 500px !important;
  }

  .cta-bar {
    flex-direction: column;
    text-align: center;
    padding: 24px 20px;
    gap: 16px;
  }

  .subservice-grid,
  .work-grid,
  .cards-grid {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 640px) {
  .btn {
    min-width: 220px;
    padding: 16px 24px;
    font-size: 1rem;
  }

  .section {
    padding: 34px 0;
  }

  .hero-card,
  .hero-content {
    min-height: 420px !important;
  }

  .more-links {
    flex-direction: column;
    align-items: stretch;
  }
}