/*
 * SAV GROS OEUVRE - Premium Masonry & Construction Website
 * Theme: Sophisticated Dark Mode with Glassmorphism
 * Color Palette: Deep Slates, Charcoals, and Metallic Accents
 */

/* ============================================
   COLOR SCHEME - SLATE & RED (Light Mode Base)
   ============================================ */
:root {
  /* Primary Colors */
  --primary-color: #2b2d42;
  --primary-light: #3d4059;
  --primary-dark: #1a1c2e;

  /* Secondary Colors */
  --secondary-color: #8d99ae;
  --secondary-light: #a8b3c5;
  --secondary-dark: #6b7a8f;

  /* Accent Colors */
  --accent-color: #edf2f4;
  --accent-light: #ffffff;

  /* Neutral & Highlight */
  --neutral-color: #ef233c;
  --neutral-dark: #d90429;

  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #2b2d42;

  /* Text Colors */
  --text-primary: #1a1a1a;
  --text-secondary: #a3a3a3;
  --text-light: #ffffff;

  /* Metallic Accents */
  --gold-accent: #c9a962;
  --gold-light: #d4b978;
  --gold-dark: #a88a3d;

  /* Glassmorphism */
  --glass-bg: rgba(43, 45, 66, 0.85);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: rgba(0, 0, 0, 0.3);

  /* Spacing & Layout */
  --container-max: 1400px;
  --section-spacing: 6rem;
  --border-radius: 12px;

  /* Typography */
  --font-primary: 'Montserrat', 'Playfair Display', Georgia, serif;
  --font-secondary: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Dark Mode Override */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #1a1c2e;
    --bg-secondary: #2b2d42;
    --bg-tertiary: #3d4059;
    --text-primary: #edf2f4;
    --text-secondary: #a8b3c5;
    --glass-bg: rgba(26, 28, 46, 0.9);
  }
}

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

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

body {
  font-family: var(--font-secondary);
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }

p {
  margin-bottom: 1rem;
  font-size: 1.05rem;
  color: var(--text-secondary);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

@media (prefers-color-scheme: dark) {
  a { color: var(--gold-accent); }
}

/* ============================================
   UTILITIES
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: var(--section-spacing) 0;
  position: relative;
}

.text-center { text-align: center; }
.text-justify { text-align: justify; }

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

/* ============================================
   HEADER & NAVIGATION - GLASSMORPHISM
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px var(--glass-shadow);
  transition: all var(--transition-medium);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  max-width: var(--container-max);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.logo svg,
.logo img {
  width: 150px;
  height: auto;
  filter: drop-shadow(0 0 10px rgba(201, 169, 98, 0.3));
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 1.25rem;
  color: var(--text-primary);
}

.logo-subtitle {
  font-size: 0.75rem;
  color: var(--gold-accent);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 0.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-accent), var(--gold-light));
  transform: translateX(-50%);
  transition: width var(--transition-medium);
}

.nav-link:hover {
  color: var(--gold-accent);
  background: rgba(201, 169, 98, 0.1);
}

.nav-link:hover::before {
  width: 80%;
}

.nav-link.active {
  color: var(--gold-accent);
  background: rgba(201, 169, 98, 0.15);
}

.nav-link.active::before {
  width: 80%;
}

.nav-icon {
  font-size: 1.25rem;
}

/* CTA Button */
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: linear-gradient(135deg, var(--gold-accent), var(--gold-dark));
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition-medium);
  box-shadow: 0 4px 15px rgba(201, 169, 98, 0.3);
  position: relative;
  overflow: hidden;
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left var(--transition-slow);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201, 169, 98, 0.4);
}

.cta-button:hover::before {
  left: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-medium);
  border-radius: 2px;
}

.menu-toggle:hover span:nth-child(1) {
  transform: translateX(3px);
}

.menu-toggle:hover span:nth-child(3) {
  transform: translateX(-3px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 0;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-background img,
.hero-background video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(3px);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(26, 28, 46, 0.7) 0%, rgba(43, 45, 66, 0.6) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 4rem 2rem;
  max-width: 900px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 1.5rem;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  letter-spacing: 1px;
}

.hero-subtitle {
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 400;
  color: var(--gold-accent);
  margin-bottom: 2rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--accent-light);
  margin-bottom: 3rem;
  line-height: 1.8;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--border-radius);
  text-decoration: none;
  transition: all var(--transition-medium);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold-accent), var(--gold-dark));
  color: var(--primary-dark);
  box-shadow: 0 4px 15px rgba(201, 169, 98, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201, 169, 98, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--text-light);
  border: 2px solid var(--gold-accent);
}

.btn-secondary:hover {
  background: rgba(201, 169, 98, 0.1);
  border-color: var(--gold-light);
}

/* ============================================
   CARDS & CONTENT
   ============================================ */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: 0 8px 32px var(--glass-shadow);
  transition: all var(--transition-medium);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px var(--glass-shadow);
}

.card-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--gold-accent), var(--gold-dark));
  border-radius: 50%;
  margin-bottom: 1.5rem;
  color: var(--primary-dark);
  font-size: 1.5rem;
}

.card-title {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.card-description {
  color: #c9c9c9;
  line-height: 1.7;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

/* ============================================
   SECTIONS
   ============================================ */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-family: var(--font-primary);
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
  color: var(--text-primary);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-accent), var(--gold-light));
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gold-accent);
  margin-top: 1.5rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Background Image Section */
.bg-image-section {
  position: relative;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.bg-image-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(26, 28, 46, 0.9) 0%, rgba(43, 45, 66, 0.85) 100%);
  backdrop-filter: blur(3px);
}

.bg-image-section > .container {
  position: relative;
  z-index: 1;
}

/* ============================================
   SERVICES
   ============================================ */
.service-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 2.5rem;
  text-align: center;
  transition: all var(--transition-medium);
  height: 100%;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 40px var(--glass-shadow);
  border-color: var(--gold-accent);
}

.service-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
}

.service-card-title {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.service-card-description {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 15px 40px var(--glass-shadow);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

.about-content h2 {
  font-family: var(--font-primary);
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.about-content p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.stat-item {
  text-align: center;
  padding: 2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  border: 1px solid var(--glass-border);
}

.stat-number {
  font-family: var(--font-primary);
  font-size: 3rem;
  font-weight: 700;
  color: var(--gold-accent);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  border: 1px solid var(--glass-border);
  transition: all var(--transition-medium);
}

.contact-info-item:hover {
  transform: translateX(5px);
  border-color: var(--gold-accent);
}

.contact-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--gold-accent), var(--gold-dark));
  border-radius: 50%;
  color: var(--primary-dark);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-info-content h4 {
  font-family: var(--font-primary);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.contact-info-content p {
  color: var(--text-secondary);
  margin: 0;
}

.contact-form {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--glass-border);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--gold-accent);
  box-shadow: 0 0 0 3px rgba(201, 169, 98, 0.1);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-top: 2rem;
  box-shadow: 0 8px 32px var(--glass-shadow);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--primary-dark);
  color: var(--text-light);
  padding: 4rem 0 2rem;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-accent), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--gold-accent);
}

.footer-brand p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.footer-title {
  font-family: var(--font-primary);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: var(--gold-accent);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--gold-accent);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--glass-border);
}

.footer-bottom p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

/* ============================================
   LEGAL PAGES
   ============================================ */
.legal-content {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  padding: 3rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--glass-border);
  max-width: 900px;
  margin: 0 auto;
}

.legal-content h2 {
  font-family: var(--font-primary);
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.legal-content h3 {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
  color: var(--gold-accent);
}

.legal-content p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.legal-content ul {
  margin-left: 2rem;
  margin-bottom: 1.5rem;
}

.legal-content li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.legal-content a {
  color: var(--gold-accent);
  text-decoration: underline;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .about-stats {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --section-spacing: 4rem;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    padding: 2rem;
    gap: 0.5rem;
    border-bottom: 1px solid var(--glass-border);
  }

  .nav-list.active {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }

  .cta-button.desktop {
    display: none;
  }

  .hero-content {
    padding: 2rem 1rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .legal-content {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
  }

  .section-title::after {
    width: 60px;
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus Visible */
*:focus-visible {
  outline: 2px solid var(--gold-accent);
  outline-offset: 2px;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--gold-accent);
  color: var(--primary-dark);
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.shimmer {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  background-size: 1000px 100%;
  animation: shimmer 2s infinite;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .header,
  .footer,
  .hero-buttons,
  .btn {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .card,
  .service-card,
  .contact-form {
    break-inside: avoid;
  }
}