/* Base & Reset */
:root {
  --primary-color: #8B5A2B;
  --primary-color-light: #A67C52;
  --primary-color-dark: #6D4522;
  --secondary-color: #D2B48C;
  --accent-color: #5D4037;
  --light-color: #F5F5F5;
  --dark-color: #333333;
  --text-color: #4A4A4A;
  --border-color: #E0E0E0;
  --success-color: #4CAF50;
  --error-color: #F44336;
  --transition-fast: 0.2s ease;
  --transition: 0.3s ease;
  --transition-slow: 0.5s ease;
  --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
  --border-radius-sm: 0.25rem;
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 5rem;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size: 1rem;
  --font-size-md: 1.25rem;
  --font-size-lg: 1.5rem;
  --font-size-xl: 2rem;
  --font-size-2xl: 2.5rem;
  --font-size-3xl: 3rem;
  --font-size-4xl: 3.5rem;
  --container-width: 75rem;
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: 'Montserrat', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: #FFFFFF;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  color: var(--dark-color);
  margin-bottom: 1rem;
  line-height: 1.2;
}

p {
  margin-bottom: 1rem;
}

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

a:hover, a:focus {
  color: var(--accent-color);
}

a:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

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

ul {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
}

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

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

.section {
  padding: var(--spacing-2xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  z-index:2;
}

.section-header h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-sm);
  position: relative;
}

.separator {
  width: 5rem;
  height: 0.1875rem;
  background-color: var(--primary-color);
  margin: 0 auto var(--spacing);
}

.bg-light {
  background-color: var(--light-color);
}

.img-responsive {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  transition: transform var(--transition);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5625rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-size: var(--font-size);
  line-height: 1.5;
}

.btn:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

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

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--primary-color-dark);
  color: white;
  transform: translateY(-0.125rem);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background-color: var(--light-color);
  color: var(--primary-color);
  border: 0.125rem solid var(--primary-color);
}

.btn-secondary:hover, .btn-secondary:focus {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-0.125rem);
  box-shadow: var(--shadow);
}

.btn-block {
  display: block;
  width: 100%;
}

/* Header & Navigation */
header:is(.main-header) {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 3;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow);
  padding: 0.9375rem 0;
  transition: all var(--transition);
}

header.sticky {
  padding: 0.625rem 0;
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow);
}

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

.logo h1 {
  font-size: 1.8rem;
  margin-bottom: 0;
  color: var(--primary-color);
}

.logo p {
  font-size: 0.9rem;
  margin-bottom: 0;
  color: var(--accent-color);
}

nav {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
}

.nav-menu li {
  margin-left: 1.5625rem;
}

.nav-menu a {
  color: var(--dark-color);
  font-weight: 500;
  position: relative;
  padding-bottom: 0.3125rem;
}

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

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 0.125rem;
  background-color: var(--primary-color);
  transition: width var(--transition);
}

.nav-menu a:hover::after, .nav-menu a:focus::after {
  width: 100%;
}

.btn-contact {
  background-color: var(--primary-color);
  color: white !important;
  padding: 0.5rem 1.25rem;
  border-radius: var(--border-radius);
}

.btn-contact:hover, .btn-contact:focus {
  background-color: var(--accent-color);
}

.btn-contact::after {
  display: none;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--dark-color);
  background: none;
  border: none;
  padding: 0.5rem;
}

.menu-toggle:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Hero Section */
.hero {
  height: 100vh;
  min-height: 37.5rem;
  background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../../assets/images/hero-banner-menuiserie-martin.png') no-repeat center center/cover;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: white;
  padding-top: 5rem;
}

.hero-content {
  max-width: 50rem;
  padding: 0 1.25rem;
  animation: fadeIn 1s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(1.25rem); }
  to { opacity: 1; transform: translateY(0); }
}

.hero h2 {
  font-size: var(--font-size-4xl);
  margin-bottom: 0.9375rem;
  color: white;
}

.hero h3 {
  font-size: var(--font-size-xl);
  margin-bottom: 1.25rem;
  color: var(--secondary-color);
}

.hero p {
  font-size: var(--font-size-md);
  margin-bottom: 1.875rem;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
}

/* About Section */
.about-content {
  display: flex;
  align-items: center;
  gap: 3.125rem;
}

.about-image {
  flex: 1;
  overflow: hidden;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.about-image img:hover {
  transform: scale(1.05);
}

.about-text {
  flex: 1;
}

.about-text h3 {
  margin-bottom: 1.25rem;
  color: var(--primary-color);
}

.about-features {
  display: flex;
  justify-content: space-between;
  margin-top: 1.875rem;
}

.feature {
  text-align: center;
  padding: 0.9375rem;
  transition: transform var(--transition);
}

.feature:hover {
  transform: translateY(-0.625rem);
}

.feature i {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 0.9375rem;
}

.feature h4 {
  font-size: var(--font-size-md);
  margin-bottom: 0;
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18.75rem, 1fr));
  gap: 1.875rem;
}

.service-card {
  background-color: white;
  padding: 1.875rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.service-card:hover {
  transform: translateY(-0.625rem);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1.25rem;
}

.service-card h3 {
  margin-bottom: 0.9375rem;
}

/* Portfolio Section */
.portfolio-filters {
  display: flex;
  justify-content: center;
  margin-bottom: 1.875rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: none;
  border: none;
  padding: 0.5rem 1.25rem;
  margin: 0 0.3125rem 0.625rem;
  cursor: pointer;
  font-weight: 500;
  border-radius: 1.875rem;
  transition: all var(--transition);
}

.filter-btn:hover, .filter-btn:focus, .filter-btn.active {
  background-color: var(--primary-color);
  color: white;
  outline: none;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18.75rem, 1fr));
  gap: 1.875rem;
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  height: 15.625rem;
  box-shadow: var(--shadow);
}

.portfolio-item figure {
  height: 100%;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(139, 90, 43, 0.8);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 1.25rem;
  text-align: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.portfolio-item:hover .portfolio-overlay,
.portfolio-item:focus-within .portfolio-overlay {
  opacity: 1;
}

.portfolio-item:hover img,
.portfolio-item:focus-within img {
  transform: scale(1.1);
}

.portfolio-overlay h3 {
  color: white;
  margin-bottom: 0.625rem;
}

.portfolio-overlay p {
  color: var(--secondary-color);
  margin-bottom: 0;
}

.portfolio-cta {
  text-align: center;
  margin-top: 3.125rem;
}

/* Testimonials Section */
.testimonials-slider {
  display: flex;
  flex-wrap: wrap;
  gap: 1.875rem;
  justify-content: center;
}

.testimonial {
  flex: 1;
  min-width: 18.75rem;
  max-width: 21.875rem;
}

.testimonial-content {
  background-color: white;
  padding: 1.875rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  position: relative;
  height: 100%;
  transition: transform var(--transition);
}

.testimonial-content:hover {
  transform: translateY(-0.625rem);
  box-shadow: var(--shadow-lg);
}

.testimonial-rating {
  color: #FFD700;
  margin-bottom: 0.9375rem;
}

.testimonial-content p {
  font-style: italic;
  margin-bottom: 1.25rem;
}

.testimonial-author h4 {
  margin-bottom: 0.3125rem;
  color: var(--primary-color);
}

.testimonial-author p {
  margin-bottom: 0;
  font-size: 0.9rem;
}

/* Contact Section */
.contact-content {
  display: flex;
  gap: 3.125rem;
}

.contact-info {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(12.5rem, 1fr));
  gap: 1.875rem;
}

.contact-card {
  background-color: white;
  padding: 1.5625rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform var(--transition);
  height: 100%;
}

.contact-card:hover {
  transform: translateY(-0.625rem);
  box-shadow: var(--shadow-lg);
}

.contact-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 0.9375rem;
}

.contact-card h3 {
  margin-bottom: 0.9375rem;
  font-size: 1.2rem;
}

.contact-card p, .contact-card address {
  margin-bottom: 0;
  font-style: normal;
}

.contact-form-container {
  flex: 1;
}

.contact-form {
  background-color: white;
  padding: 1.875rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 1.25rem;
  width: 48%;
  display: inline-block;
  vertical-align: top;
  position: relative;
}

.form-group.full-width {
  width: 100%;
}

.form-group:nth-child(odd) {
  margin-right: 4%;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem;
  transition: border-color var(--transition);
}

.form-group textarea {
  resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.125rem rgba(139, 90, 43, 0.25);
}

.error-message {
  color: var(--error-color);
  font-size: var(--font-size-xs);
  margin-top: 0.3125rem;
  min-height: 1.25rem;
}

.form-status {
  text-align: center;
  padding: 0.625rem;
  margin-top: 1.25rem;
  border-radius: var(--border-radius);
  display: none;
}

.form-status.success {
  background-color: rgba(76, 175, 80, 0.1);
  color: var(--success-color);
  display: block;
}

.form-status.error {
  background-color: rgba(244, 67, 54, 0.1);
  color: var(--error-color);
  display: block;
}

/* Footer */
#footer {
  background-color: var(--dark-color);
  color: white;
  padding: 3.75rem 0 1.25rem;
  margin-top: auto;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  gap: 3.125rem;
  margin-bottom: 1.875rem;
}

.footer-info {
  flex: 2;
  min-width: 18.75rem;
}

.footer-info h3 {
  color: white;
  margin-bottom: 0.9375rem;
}

.footer-contact {
  margin: 1.25rem 0;
}

.footer-contact p {
  margin-bottom: 0.625rem;
  display: flex;
  align-items: center;
}

.footer-contact i {
  margin-right: 0.625rem;
  color: var(--secondary-color);
}

.footer-contact a {
  color: white;
}

.footer-contact a:hover, .footer-contact a:focus {
  color: var(--secondary-color);
}

.footer-social {
  display: flex;
  gap: 0.9375rem;
  margin-top: 1.25rem;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: white;
  transition: all var(--transition);
}

.footer-social a:hover, .footer-social a:focus {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-0.3125rem);
}

.footer-legal {
  flex: 1;
  min-width: 18.75rem;
}

.legal-details {
  margin-bottom: 1.25rem;
}

.legal-details summary {
  cursor: pointer;
  padding: 0.9375rem;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: background-color var(--transition);
}

.legal-details summary:hover, .legal-details summary:focus {
  background-color: rgba(255, 255, 255, 0.2);
  outline: none;
}

.legal-content {
  padding: 0.9375rem;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  font-size: 0.9rem;
  line-height: 1.5;
}

.footer-bottom {
  text-align: center;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

/* Animation classes */
.fade-in {
  animation: fadeIn 1s ease-out;
}

.slide-up {
  animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(3.125rem); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive Design */
@media (max-width: 62rem) { /* 992px */
  :root {
      --font-size-4xl: 2.8rem;
      --font-size-3xl: 2.5rem;
      --font-size-2xl: 2rem;
      --font-size-xl: 1.6rem;
  }
  
  .about-content {
      flex-direction: column;
  }
  
  .contact-content {
      flex-direction: column;
  }
}

@media (max-width: 48rem) { /* 768px */
  :root {
      --font-size-4xl: 2.2rem;
      --font-size-3xl: 2rem;
      --font-size-2xl: 1.8rem;
      --font-size-xl: 1.4rem;
      --spacing-2xl: 3.75rem;
  }
  
  .menu-toggle {
      display: block;
  }
  
  .nav-menu {
      position: fixed;
      top: 4.375rem;
      left: -100%;
      width: 80%;
      height: calc(100vh - 4.375rem);
      background-color: white;
      flex-direction: column;
      align-items: center;
      padding: 2.5rem 0;
      transition: left var(--transition);
      box-shadow: var(--shadow);
      z-index: 3;
  }
  
  .nav-menu.active {
      left: 0;
  }
  
  .nav-menu li {
      margin: 0.9375rem 0;
  }
  
  .cta-buttons {
      flex-direction: column;
      gap: 0.9375rem;
  }
  
  .form-group {
      width: 100%;
  }
  
  .form-group:nth-child(odd) {
      margin-right: 0;
  }
}

@media (max-width: 36rem) { /* 576px */
  :root {
      --font-size-4xl: 1.8rem;
      --font-size-3xl: 1.6rem;
      --font-size-2xl: 1.4rem;
      --font-size-xl: 1.2rem;
      --spacing-2xl: 3rem;
  }
  
  .hero {
      min-height: 31.25rem;
  }
  
  .about-features {
      flex-direction: column;
      gap: 1.25rem;
  }
}

/* Utility classes for animations */
.hidden {
  opacity: 0;
  transform: translateY(1.875rem);
}

.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}