/**
 * VILFOUR - Site Web Institutionnel
 * Thème: Gastronomie et Hospitalité Française
 * Palette: Terracotta (#E2725B), Sage Green (#87A96B), Warm Beige (#F5F5DC)
 * Typographie: Playfair Display (titres), Lora (corps)
 * Version: 1.0.0
 */

/* ========================================
   VARIABLES CSS & THÈME DE COULEURS
   ======================================== */

:root {
  /* Couleurs principales - Thème Gastronomie Française */
  --color-terracotta: #E2725B;
  --color-sage-green: #87A96B;
  --color-warm-beige: #F5F5DC;
  --color-cream: #FFF8F0;
  --color-warm-white: #FFFEF9;
  --color-deep-brown: #3D2914;
  --color-soft-gold: #D4A574;
  --color-olive: #6B7A3E;
  --color-muted-sage: #9CAF88;

  /* Palette Slate & Red (Mode Clair) */
  --primary: #2b2d42;
  --secondary: #8d99ae;
  --accent: #edf2f4;
  --neutral: #ef233c;
  --background: #ffffff;
  --text: #1a1a1a;

  /* Variables sémantiques */
  --bg-primary: var(--color-warm-white);
  --bg-secondary: var(--color-warm-beige);
  --bg-accent: var(--color-cream);
  --text-primary: var(--color-deep-brown);
  --text-secondary: #5D4E37;
  --text-muted: #8B7355;
  --border-color: rgba(61, 41, 20, 0.15);
  --shadow-subtle: 0 4px 20px rgba(61, 41, 20, 0.08);
  --shadow-medium: 0 8px 30px rgba(61, 41, 20, 0.12);
  --shadow-strong: 0 12px 40px rgba(61, 41, 20, 0.18);

  /* Typographie */
  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Lora', Georgia, serif;
  --font-fallback: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Espacement */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

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

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Container */
  --container-max: 1200px;
  --header-height: 80px;
}

/* Mode Sombre */
[data-theme="dark"] {
  --bg-primary: #1a1612;
  --bg-secondary: #2D2620;
  --bg-accent: #3D352D;
  --text-primary: var(--color-warm-beige);
  --text-secondary: #C4B5A0;
  --text-muted: #A89B8A;
  --border-color: rgba(244, 244, 236, 0.12);
  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-strong: 0 12px 40px rgba(0, 0, 0, 0.6);
}

/* ========================================
   RESET & BASE
   ======================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.8;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ========================================
   TYPOGRAPHIE
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

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

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

a:hover {
  color: var(--color-sage-green);
}

/* ========================================
   MISE EN PAGE & CONTAINER
   ======================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

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

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(to bottom, rgba(245, 245, 220, 0.98), rgba(245, 245, 220, 0.95));
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-normal);
}

[data-theme="dark"] .header {
  background: linear-gradient(to bottom, rgba(26, 22, 18, 0.98), rgba(26, 22, 18, 0.95));
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  max-width: var(--container-max);
  margin: 0 auto;
  height: var(--header-height);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header__logo img {
  width: auto;
  height: 50px;
  object-fit: contain;
  transition: transform var(--transition-normal);
}

.header__logo img:hover {
  transform: scale(1.05);
}

.header__logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.header__nav {
  display: none;
}

@media (min-width: 992px) {
  .header__nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
  }
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  list-style: none;
}

.nav__link {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-terracotta);
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

.nav__link:hover {
  color: var(--color-terracotta);
}

.nav__link:hover::after {
  width: 80%;
}

.nav__link--active {
  color: var(--color-terracotta);
}

.nav__link--active::after {
  width: 80%;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--bg-accent);
  border-color: var(--color-terracotta);
  transform: rotate(15deg);
}

.theme-toggle span {
  font-size: 1.25rem;
}

.btn-header {
  background: var(--color-terracotta);
  color: white !important;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-weight: 500;
  transition: all var(--transition-normal);
  animation: pulse-gentle 3s ease-in-out infinite;
}

.btn-header:hover {
  background: var(--color-sage-green);
  color: white !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

@keyframes pulse-gentle {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(226, 114, 91, 0.4);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(226, 114, 91, 0);
  }
}

/* Mobile Menu */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

@media (min-width: 992px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu-btn span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-fast);
  border-radius: 2px;
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--bg-primary);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-medium);
  z-index: 999;
}

.mobile-nav.active {
  display: block;
  animation: slideDown var(--transition-normal);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-nav__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.mobile-nav__link {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
  padding: var(--spacing-sm);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.mobile-nav__link:hover {
  color: var(--color-terracotta);
  padding-left: var(--spacing-md);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(3px);
  transform: scale(1.05);
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--spacing-lg);
  max-width: 900px;
  animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__badge {
  display: inline-block;
  background: var(--color-terracotta);
  color: white;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
}

.hero__title {
  color: white;
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero__subtitle {
  color: rgba(255, 255, 255, 0.95);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  margin-bottom: var(--spacing-xl);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero__cta {
  display: inline-flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 1rem 2rem;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: var(--color-terracotta);
  color: white;
}

.btn--primary:hover {
  background: var(--color-sage-green);
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.btn--secondary {
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-deep-brown);
  backdrop-filter: blur(10px);
}

.btn--secondary:hover {
  background: white;
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.btn--outline {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn--outline:hover {
  background: white;
  color: var(--color-deep-brown);
}

/* ========================================
   SECTIONS AVEC ARRIÈRE-PLAN
   ======================================== */

.section--beige {
  background-color: var(--color-warm-beige);
}

.section--cream {
  background-color: var(--color-cream);
}

.section--white {
  background-color: var(--bg-primary);
}

.section--sage {
  background-color: rgba(135, 169, 107, 0.1);
}

.section-bg {
  position: relative;
  overflow: hidden;
}

.section-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  filter: blur(3px);
  z-index: 0;
}

.section-bg__content {
  position: relative;
  z-index: 1;
}

/* ========================================
   CARTES
   ======================================== */

.card {
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-strong);
  border-color: var(--color-terracotta);
}

.card__icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-terracotta), var(--color-sage-green));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: white;
  font-size: 1.75rem;
}

.card__image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-md);
}

.card__title {
  margin-bottom: var(--spacing-sm);
}

.card__text {
  flex: 1;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-terracotta);
  font-weight: 500;
  margin-top: var(--spacing-sm);
  transition: all var(--transition-fast);
}

.card__link:hover {
  gap: var(--spacing-sm);
  color: var(--color-sage-green);
}

/* ========================================
   GALERIE
   ======================================== */

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

.gallery__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 4/3;
  cursor: pointer;
}

.gallery__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery__item:hover .gallery__img {
  transform: scale(1.1);
}

.gallery__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  padding: var(--spacing-md);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.gallery__item:hover .gallery__overlay {
  opacity: 1;
}

.gallery__title {
  color: white;
  font-size: 1.1rem;
  margin-bottom: 0;
}

/* ========================================
   FORMULAIRES
   ======================================== */

.form {
  max-width: 600px;
  margin: 0 auto;
}

.form__group {
  margin-bottom: var(--spacing-md);
}

.form__label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-terracotta);
  box-shadow: 0 0 0 4px rgba(226, 114, 91, 0.1);
}

.form__textarea {
  min-height: 150px;
  resize: vertical;
}

.form__checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xs);
}

.form__checkbox input {
  margin-top: 0.25rem;
}

.form__checkbox label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.btn--submit {
  width: 100%;
  justify-content: center;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
  background: var(--color-deep-brown);
  color: var(--color-warm-beige);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer__logo {
  margin-bottom: var(--spacing-md);
}

.footer__logo img {
  height: 60px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.footer__title {
  color: white;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: var(--spacing-sm);
}

.footer__links a {
  color: rgba(245, 245, 220, 0.8);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-terracotta);
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  color: rgba(245, 245, 220, 0.8);
}

.footer__contact-icon {
  color: var(--color-terracotta);
  font-size: 1.25rem;
  margin-top: 0.2rem;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: rgba(245, 245, 220, 0.6);
  font-size: 0.9rem;
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.footer__legal a {
  color: rgba(245, 245, 220, 0.7);
  transition: color var(--transition-fast);
}

.footer__legal a:hover {
  color: var(--color-terracotta);
}

/* ========================================
   DIVISEURS ORGANIQUES
   ======================================== */

.divider {
  text-align: center;
  margin: var(--spacing-xl) 0;
  color: var(--color-terracotta);
}

.divider__icon {
  font-size: 2rem;
}

/* ========================================
   ACCESSIBILITÉ
   ======================================== */

.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: 3px solid var(--color-terracotta);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-terracotta);
  color: white;
  padding: 8px 16px;
  z-index: 1001;
  transition: top var(--transition-fast);
}

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

/* ========================================
   ANIMATIONS
   ======================================== */

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.slide-up {
  animation: slideUp 0.6s ease-out;
}

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

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

@media (max-width: 768px) {
  :root {
    --spacing-3xl: 4rem;
  }

  .hero__content {
    padding: var(--spacing-md);
  }

  .hero__cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .card {
    padding: var(--spacing-md);
  }
}

@media (max-width: 576px) {
  .section {
    padding: var(--spacing-xl) 0;
  }
}

/* ========================================
   IMPRESSION
   ======================================== */

@media print {
  .header,
  .footer,
  .btn,
  .theme-toggle {
    display: none;
  }

  body {
    background: white;
    color: black;
  }
}