/* ============================================
   TOP CLASS NUTEC HOMES — GLASSMORPHISM REDESIGN
   Dark luxury aesthetic with frosted glass panels
   ============================================ */

:root {
  /* Dark palette (default) */
  --bg-deep: #0a0e17;
  --bg-surface: #111827;
  --bg-card: #1a2236;
  --bg-elevated: #1f2b42;

  /* Accent — warm amber/gold */
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --accent-glow: rgba(245, 158, 11, 0.25);
  --accent-subtle: rgba(245, 158, 11, 0.08);

  /* WhatsApp */
  --whatsapp-green: #25D366;
  --whatsapp-glow: rgba(37, 211, 102, 0.3);

  /* Text */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-dark: #1e293b;

  /* Glass */
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-bg-hover: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.15);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --glass-blur: blur(16px);

  /* Header */
  --header-bg: rgba(10, 14, 23, 0.7);
  --header-bg-scrolled: rgba(10, 14, 23, 0.92);
  --mobile-nav-bg: rgba(10, 14, 23, 0.97);
  --dropdown-bg: rgba(26, 34, 54, 0.95);
  --dropdown-arrow: rgba(26, 34, 54, 0.95);

  /* Spacing */
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px;
  --sp-6: 24px; --sp-8: 32px; --sp-12: 48px; --sp-16: 64px;
  --sp-20: 80px; --sp-24: 96px;

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
}

/* Light theme */
html[data-theme="light"] {
  --bg-deep: #f8f9fa;
  --bg-surface: #ffffff;
  --bg-card: #f3f4f6;
  --bg-elevated: #e5e7eb;

  --accent: #d97706;
  --accent-light: #f59e0b;
  --accent-glow: rgba(217, 119, 6, 0.15);
  --accent-subtle: rgba(217, 119, 6, 0.08);

  --whatsapp-green: #25D366;
  --whatsapp-glow: rgba(37, 211, 102, 0.2);

  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --text-dark: #111827;

  --glass-bg: rgba(0, 0, 0, 0.03);
  --glass-bg-hover: rgba(0, 0, 0, 0.05);
  --glass-border: rgba(0, 0, 0, 0.1);
  --glass-border-hover: rgba(0, 0, 0, 0.15);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);

  /* Header */
  --header-bg: rgba(255, 255, 255, 0.85);
  --header-bg-scrolled: rgba(255, 255, 255, 0.97);
  --mobile-nav-bg: rgba(255, 255, 255, 0.98);
  --dropdown-bg: rgba(255, 255, 255, 0.97);
  --dropdown-arrow: rgba(255, 255, 255, 0.97);
}

/* Light theme hero overrides */
html[data-theme="light"] .hero {
  background: linear-gradient(160deg, #f8fafc 0%, #eef2f7 40%, #e8edf5 100%);
}

html[data-theme="light"] .hero::before {
  background: radial-gradient(circle, rgba(217, 119, 6, 0.12) 0%, transparent 70%);
}

html[data-theme="light"] .hero::after {
  background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
}

html[data-theme="light"] .hero-photo::after {
  background: linear-gradient(180deg, transparent 50%, rgba(238, 242, 247, 0.5) 100%);
}

html[data-theme="light"] body::before {
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(217, 119, 6, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(59, 130, 246, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(139, 92, 246, 0.02) 0%, transparent 50%);
}

/* ---- RESET ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-deep);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
}

/* Ambient background gradient */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(245, 158, 11, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(139, 92, 246, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

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

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

ul { list-style: none; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

::selection {
  background: var(--accent);
  color: var(--bg-deep);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--sp-2);
  background: var(--accent);
  color: var(--bg-deep);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: 600;
}

.skip-link:focus { left: var(--sp-4); }

/* ---- THEME TOGGLE ---- */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-primary);
  margin-right: var(--sp-4);
}

.theme-toggle:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  color: var(--accent);
}

.theme-toggle svg {
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

/* ---- CONTAINER ---- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--sp-4);
  position: relative;
  z-index: 1;
}

@media (min-width: 640px) {
  .container { padding: 0 var(--sp-6); }
}
@media (min-width: 1024px) {
  .container { padding: 0 var(--sp-8); }
}

/* ---- SECTIONS ---- */
.section {
  padding: var(--sp-12) 0;
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding: var(--sp-16) 0;
  }
}

.section--alt {
  background: rgba(255, 255, 255, 0.02);
}

.section--blue {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.05), rgba(59, 130, 246, 0.05));
}

/* ---- TYPOGRAPHY ---- */
h1, h2, h3 {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
}

h3 {
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.35;
}

.section-label {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: var(--sp-3);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.section-title {
  margin-bottom: var(--sp-3);
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  color: var(--text-secondary);
  max-width: 600px;
  font-size: 1.05rem;
}

/* ==============================
   HEADER — Frosted Glass Navbar
   ============================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 9000;
  border-bottom: 1px solid var(--glass-border);
  transition: border-color 0.4s ease, box-shadow 0.4s ease;
  /* No backdrop-filter here — moved to ::before so position:fixed children
     are not trapped in a new containing block on Safari/Chrome mobile */
}

/* Backdrop blur on pseudo-element so position:fixed children (mobile nav)
   are NOT contained by backdrop-filter on Safari/Chrome mobile */
.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--header-bg);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  transition: background 0.4s ease;
  z-index: -1;
}

.site-header.scrolled::before {
  background: var(--header-bg-scrolled);
}

.site-header.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.12);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

/* Logo */
.site-logo {
  display: flex;
  flex-direction: column;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.02em;
  transition: transform 0.3s ease;
}

.site-logo:hover { transform: scale(1.03); }

.site-logo span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 2px;
}

/* Desktop Nav */
.site-nav { display: none; }

@media (min-width: 1024px) {
  .site-nav {
    display: flex;
    gap: var(--sp-1);
    align-items: center;
  }

  .site-nav > a,
  .site-nav > .nav-dropdown > .nav-dropdown-trigger {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    padding: var(--sp-2) var(--sp-3);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    position: relative;
  }

  .site-nav > a:hover,
  .site-nav > .nav-dropdown > .nav-dropdown-trigger:hover {
    color: var(--text-primary);
    background: var(--glass-bg-hover);
  }

  .site-nav > a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
    transition: all 0.3s ease;
    transform: translateX(-50%);
  }

  .site-nav > a:hover::after {
    width: 60%;
  }
}

/* Dropdown */
.nav-dropdown { position: relative; }

.nav-dropdown-trigger {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.nav-dropdown-trigger::after {
  content: '';
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.3s ease;
  opacity: 0.6;
}

.nav-dropdown:hover .nav-dropdown-trigger::after {
  transform: rotate(-135deg) translateY(-2px);
}

.nav-dropdown-content {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--dropdown-bg);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  padding: var(--sp-6);
  min-width: 280px;
  max-width: 400px;
  margin-top: var(--sp-2);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 9001;
}

.nav-dropdown.services-dropdown .nav-dropdown-content {
  min-width: 600px;
  max-width: 700px;
  padding: var(--sp-8);
}

.nav-dropdown:hover .nav-dropdown-content,
.nav-dropdown:focus-within .nav-dropdown-content {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-content::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 10px solid var(--dropdown-arrow);
}

.nav-dropdown-content h4 {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--sp-4);
  padding-bottom: var(--sp-2);
  border-bottom: 1px solid var(--glass-border);
}

.nav-dropdown-content a {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-2);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
  border-radius: var(--radius-sm);
  border-bottom: none;
}

.nav-dropdown-content a:hover {
  color: var(--text-primary);
  background: var(--glass-bg-hover);
  padding-left: var(--sp-3);
}

/* Service menu items */
.service-link {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.service-icon {
  width: 38px;
  height: 38px;
  background: var(--accent-subtle);
  border: 1px solid rgba(245, 158, 11, 0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: all var(--transition);
}

.nav-dropdown-content a:hover .service-icon {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.3);
}

.service-info {
  display: flex;
  flex-direction: column;
}

.service-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.88rem;
}

.service-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 400;
}

.services-grid-menu {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-1);
}

.compact-menu {
  display: grid;
  gap: var(--sp-1);
}

.compact-menu a {
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-sm);
}

.compact-menu a:hover {
  background: var(--glass-bg-hover);
}

.dropdown-cta {
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--glass-border);
  display: flex;
  gap: var(--sp-3);
}

.dropdown-cta .btn {
  flex: 1;
  text-align: center;
  font-size: 0.85rem;
  padding: var(--sp-2) var(--sp-3);
}

/* WhatsApp header button */
.header-wa {
  background: linear-gradient(135deg, var(--whatsapp-green), #128C7E);
  color: #fff !important;
  padding: var(--sp-2) var(--sp-4) !important;
  border-radius: 24px !important;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  white-space: nowrap;
  box-shadow: 0 4px 20px var(--whatsapp-glow);
  transition: all var(--transition) !important;
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.header-wa::before {
  content: '💬';
  font-size: 0.85rem;
}

.header-wa:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.45);
}

/* Mobile nav toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: var(--sp-2);
  min-width: 44px;
  min-height: 44px;
  justify-content: center;
  align-items: center;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.nav-toggle:hover {
  background: var(--glass-bg-hover);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-toggle[aria-expanded='true'] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded='true'] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle[aria-expanded='true'] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .nav-toggle { display: none; }
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 76px;
  left: 0; right: 0; bottom: 0;
  background: var(--mobile-nav-bg);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  z-index: 8999;
  overflow-y: auto;
  padding: var(--sp-6);
}

.mobile-nav.open {
  display: block;
  animation: mobileSlide 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes mobileSlide {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-nav a {
  display: block;
  color: var(--text-secondary);
  padding: var(--sp-4);
  border-bottom: 1px solid var(--glass-border);
  font-size: 1.05rem;
  font-weight: 500;
  transition: all var(--transition);
}

.mobile-nav a:hover {
  color: var(--text-primary);
  background: var(--glass-bg-hover);
  padding-left: var(--sp-6);
}

.mobile-nav .mobile-nav-section {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin: var(--sp-6) 0 var(--sp-3);
  font-weight: 700;
}

.mobile-nav .mobile-cta {
  margin-top: var(--sp-6);
  padding: var(--sp-4);
  background: var(--whatsapp-green);
  color: #fff;
  border-radius: var(--radius-md);
  text-align: center;
  font-weight: 600;
}

/* ==============================
   FOOTER — Dark Glass
   ============================== */
.site-footer {
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-deep) 100%);
  border-top: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: var(--sp-16) 0 var(--sp-6);
  position: relative;
}

.footer-grid {
  display: grid;
  gap: var(--sp-8);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer-heading {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: var(--sp-4);
  letter-spacing: -0.01em;
}

.footer-links a {
  display: block;
  color: var(--text-muted);
  font-size: 0.875rem;
  padding: 3px 0;
  transition: all var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
  transform: translateX(4px);
}

.footer-bottom {
  margin-top: var(--sp-12);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--glass-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 2000;
  background: rgba(26, 34, 54, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: var(--sp-4) var(--sp-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  box-shadow: 0 -4px 30px rgba(0, 0, 0, 0.4);
}

.cookie-banner.hidden { display: none; }
.cookie-banner p { flex: 1; min-width: 200px; margin: 0; }
.cookie-banner a { color: var(--accent); text-decoration: underline; }
.cookie-actions { display: flex; gap: var(--sp-2); }

/* Breadcrumbs */
.breadcrumb {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: var(--sp-4);
}

.breadcrumb a { color: var(--accent); }
.breadcrumb span::before { content: ' › '; }