/* ===================================================================
   Excavation BA 2000 - Styles de Base, Layout, Header & Footer
   =================================================================== */

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-light-50);
  color: var(--color-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-dark-900);
}

/* Utilitaires de conteneur */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-dark-900);
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -6px rgba(245, 166, 35, 0.5);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-white);
}
.btn-secondary:hover {
  background-color: var(--color-secondary-hover);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-dark-900);
}

.btn-outline-white {
  background-color: transparent;
  border-color: var(--color-white);
  color: var(--color-white);
}
.btn-outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-dark-900);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Barre de contact supérieure (Top Bar) */
.top-bar {
  background-color: var(--color-dark-900);
  color: var(--color-text-light-muted);
  font-size: 0.825rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--color-dark-700);
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.top-bar-info {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.top-bar-item a:hover {
  color: var(--color-primary);
}

/* Header principal */
.main-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(20, 25, 35, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--color-primary);
  box-shadow: var(--shadow-lg);
}
.header-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.logo-img {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  border: 2px solid var(--color-primary);
}
.logo-text {
  display: flex;
  flex-direction: column;
}
.logo-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.5px;
  white-space: nowrap;
}
.logo-name span {
  color: var(--color-primary);
}
.logo-tagline {
  font-size: 0.75rem;
  color: var(--color-text-light-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  white-space: nowrap;
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 1.8vw, 2rem);
}
.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.6rem, 1.2vw, 1.5rem);
}
.nav-list li {
  white-space: nowrap;
}
.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(0.85rem, 0.95vw, 0.95rem);
  color: var(--color-text-light);
  padding: 0.4rem 0.25rem;
  position: relative;
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: clamp(0.6rem, 1vw, 1rem);
  flex-shrink: 0;
}
.phone-cta {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(0.85rem, 0.95vw, 0.95rem);
  white-space: nowrap;
}
.phone-cta:hover {
  color: var(--color-primary);
}
.header-cta .btn {
  white-space: nowrap;
}

/* Menu Mobile Burger */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.mobile-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background-color: var(--color-white);
  margin: 5px 0;
  transition: all var(--transition-normal);
  border-radius: 2px;
}

/* Footer */
.site-footer {
  background-color: var(--color-dark-900);
  color: var(--color-text-light-muted);
  padding-top: 4rem;
  border-top: 4px solid var(--color-primary);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2.5rem;
  padding-bottom: 3.5rem;
}
.footer-brand p {
  margin-top: 1rem;
  line-height: 1.6;
  font-size: 0.925rem;
}
.footer-social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(255, 255, 255, 0.06);
  color: var(--color-white);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-decoration: none;
  margin-top: 1.25rem;
}
.footer-social-link:hover {
  background-color: #1877F2;
  color: #ffffff;
  border-color: #1877F2;
  transform: translateY(-2px);
}
.footer-title {
  color: var(--color-white);
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.5rem;
}
.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 35px;
  height: 3px;
  background-color: var(--color-primary);
}
.footer-links li {
  margin-bottom: 0.65rem;
}
.footer-links a:hover {
  color: var(--color-primary);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  font-size: 0.925rem;
}
.footer-contact svg {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 3px;
}
.footer-bottom {
  background-color: #07090c;
  padding: 1.25rem 0;
  border-top: 1px solid var(--color-dark-700);
  font-size: 0.85rem;
}
.footer-bottom-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Responsive navigation & Mobile First Optimizations */
.mobile-sticky-bar {
  display: none;
}

@media (max-width: 1200px) {
  .logo-tagline {
    display: none;
  }
}

@media (max-width: 1024px) {
  .mobile-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
  }
  .mobile-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .mobile-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .mobile-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    background-color: rgba(12, 15, 20, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
    border-bottom: 3px solid var(--color-primary);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.7);
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
  }
  .main-nav.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-list {
    flex-direction: column;
    width: 100%;
    gap: 0.5rem;
  }
  .nav-link {
    font-size: 1.15rem;
    display: block;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    background-color: rgba(255, 255, 255, 0.03);
    text-align: center;
  }
  .nav-link:hover, .nav-link.active {
    background-color: rgba(245, 166, 35, 0.15);
  }
  .header-cta {
    flex-direction: column;
    width: 100%;
    gap: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.25rem;
  }
  .phone-cta {
    font-size: 1.1rem;
    justify-content: center;
  }
  .header-cta .btn {
    display: flex;
    width: 100%;
    text-align: center;
    justify-content: center;
    padding: 0.85rem 1.5rem;
    font-size: 1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  body {
    padding-bottom: 68px; /* Dégager la barre fixe en bas */
  }
  .top-bar { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom-flex { flex-direction: column; text-align: center; }

  /* Barre fixe d'action tactile en bas d'écran sur mobile */
  .mobile-sticky-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1500;
    background-color: var(--color-dark-900);
    border-top: 2px solid var(--color-primary);
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.4);
    padding: 0.5rem 0.75rem;
    gap: 0.5rem;
  }
  .mobile-sticky-bar a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    padding: 0.75rem 0.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    text-decoration: none;
    line-height: 1;
  }
  .mobile-btn-call {
    background-color: var(--color-dark-800);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
  }
  .mobile-btn-quote {
    background-color: var(--color-primary);
    color: var(--color-dark-900);
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
}