/*
 * TOULOUSE INDUSTRIE PLASTIQUE (TIP) - Stylesheet
 * French Design System - Material Design 3 Components
 * Mobile-First Responsive Design
 * WCAG 2.1 AA Compliant
 */

/* ============================================
   GENERATED COLOR SCHEME: Slate & Red
   ============================================ */

/*
 * Light Mode Colors:
 * - Primary: #2b2d42 (Deep Slate Blue)
 * - Secondary: #8d99ae (Slate Gray)
 * - Accent: #edf2f4 (Light Gray)
 * - Neutral: #ef233c (Vibrant Red)
 * - Background: #ffffff (Pure White)
 * - Text: #1a1a1a (Near Black)
 */

/* ============================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ============================================ */

:root {
  /* Main Color Scheme */
  --color-primary: #2b2d42;
  --color-primary-light: #3d4057;
  --color-primary-dark: #1a1b29;

  --color-secondary: #8d99ae;
  --color-secondary-light: #a8b4c9;
  --color-secondary-dark: #6b778c;

  --color-accent: #edf2f4;
  --color-accent-light: #f8f9fa;
  --color-accent-dark: #d9e1e4;

  --color-neutral: #ef233c;
  --color-neutral-light: #ff4d5a;
  --color-neutral-dark: #c9182b;

  /* Background & Text */
  --color-background: #a5a5a5;
  --color-background-alt: #f5f5f7;
  --color-text: #1a1a1a;
  --color-text-light: #4a4a4a;
  --color-text-lighter: #6b7280;

  /* Royal Amethyst Navigation Theme */
  --nav-background: #EADDFF;
  --nav-text: #24005A;
  --nav-hover-bg: #6B4EA2;
  --nav-hover-text: #FFFFFF;

  /* Semantic Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #dc2626;
  --color-info: #3b82f6;

  /* Typography */
  --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-secondary: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'Courier New', monospace;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Spacing Scale */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Container */
  --container-max-width: 1280px;
  --container-padding: var(--spacing-md);
}

/* ============================================
   CSS RESET & BASE STYLES
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

@media (max-width: 768px) {
  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-3xl); }
  h3 { font-size: var(--text-2xl); }
  h4 { font-size: var(--text-xl); }
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-light);
}

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

a:hover, a:focus {
  color: var(--color-neutral-dark);
  text-decoration: underline;
}

/* ============================================
   NAVIGATION HEADER - Royal Amethyst Theme
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--nav-background);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.logo-container {
  flex-shrink: 0;
}

.logo {
  display: block;
  width: auto;
  height: 60px;
  transition: transform var(--transition-base);
}

.logo:hover, .logo:focus {
  transform: scale(1.02);
}

.logo img, .logo svg {
  width: auto;
  height: 100%;
  display: block;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.menu-toggle:hover, .menu-toggle:focus {
  background-color: rgba(36, 0, 90, 0.1);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--nav-text);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Main Navigation */
.main-nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

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

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--nav-text);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--text-sm);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  text-decoration: none;
  position: relative;
}

.nav-link:hover, .nav-link:focus {
  background-color: var(--nav-hover-bg);
  color: var(--nav-hover-text);
  text-decoration: none;
  transform: translateY(-1px);
}

.nav-link.active {
  background-color: var(--nav-hover-bg);
  color: var(--nav-hover-text);
}

.nav-link .material-symbols-outlined {
  font-size: 1.25rem;
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--nav-background);
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
  }

  .main-nav.active {
    max-height: 400px;
  }

  .nav-list {
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-xs);
  }

  .nav-link {
    width: 100%;
    justify-content: center;
    padding: var(--spacing-md);
  }
}

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

.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-background img,
.hero-background video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* 3% blur effect as requested */
  filter: blur(3px);
  transform: scale(1.03); /* Compensate for blur edges */
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  max-width: 900px;
  animation: fadeInUp 0.8s ease-out;
}

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

.hero-title {
  color: var(--color-background);
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
  margin-bottom: var(--spacing-xl);
  font-size: clamp(2rem, 5vw, var(--text-6xl));
}

.hero-subtitle {
  color: var(--color-background);
  font-size: clamp(1rem, 2vw, var(--text-xl));
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
  margin-bottom: var(--spacing-2xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-2xl);
  background-color: var(--color-neutral);
  color: var(--color-background);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--text-lg);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}

.hero-cta:hover, .hero-cta:focus {
  background-color: var(--color-neutral-dark);
  color: var(--color-background);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  text-decoration: none;
}

/* ============================================
   SECTIONS
   ============================================ */

.section {
  padding: var(--spacing-4xl) var(--spacing-lg);
}

.section-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  position: relative;
  display: inline-block;
  margin-bottom: var(--spacing-md);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-neutral), var(--color-primary));
  border-radius: var(--radius-full);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto;
}

/* Section with Background Image */
.section-with-background {
  position: relative;
  background-color: var(--color-primary);
  color: var(--color-background);
}

.section-with-background .section-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

.section-with-background .section-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* 3% blur effect */
  filter: blur(3px);
  transform: scale(1.03);
}

.section-with-background .section-content {
  position: relative;
  z-index: 1;
}

.section-with-background h2,
.section-with-background h3,
.section-with-background p {
  color: var(--color-background);
}

.section-with-background p {
  opacity: 0.95;
}

/* ============================================
   CARDS & GRID
   ============================================ */

.grid {
  display: grid;
  gap: var(--spacing-2xl);
}

.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(250px, 1fr));
}

.card {
  background-color: var(--color-background);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.card:hover, .card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

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

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

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

.card-title {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.card-description {
  font-size: var(--text-base);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-neutral);
  font-weight: 600;
  text-decoration: none;
}

.card-link:hover, .card-link:focus {
  color: var(--color-neutral-dark);
  text-decoration: none;
}

.card-link .material-symbols-outlined {
  font-size: 1.25rem;
  transition: transform var(--transition-fast);
}

.card-link:hover .material-symbols-outlined {
  transform: translateX(4px);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

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

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--color-neutral-dark);
  color: var(--color-background);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover, .btn-secondary:focus {
  background-color: var(--color-primary-dark);
  color: var(--color-background);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover, .btn-outline:focus {
  background-color: var(--color-primary);
  color: var(--color-background);
  transform: translateY(-2px);
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--text-lg);
}

.btn-small {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--text-sm);
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-md);
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-background);
  border: 2px solid var(--color-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(43, 45, 66, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-lighter);
}

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

.form-error {
  color: var(--color-error);
  font-size: var(--text-sm);
  margin-top: var(--spacing-xs);
}

.form-success {
  color: var(--color-success);
  font-size: var(--text-sm);
  margin-top: var(--spacing-xs);
}

/* ============================================
   CONTACT INFORMATION
   ============================================ */

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  color: var(--color-background);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.contact-icon .material-symbols-outlined {
  font-size: 1.5rem;
}

.contact-content h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-xs);
  color: var(--color-primary);
}

.contact-content p {
  margin-bottom: 0;
}

.contact-link {
  color: var(--color-neutral);
  text-decoration: none;
}

.contact-link:hover, .contact-link:focus {
  color: var(--color-neutral-dark);
  text-decoration: underline;
}

/* ============================================
   MAP
   ============================================ */

.map-container {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.map-container iframe {
  width: 100%;
  height: 450px;
  border: none;
  display: block;
}

@media (max-width: 768px) {
  .map-container iframe {
    height: 300px;
  }
}

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

.site-footer {
  background-color: var(--color-primary);
  color: var(--color-background);
  padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-lg);
}

.footer-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
  color: var(--color-background);
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-md);
}

.footer-section p {
  color: rgba(255, 255, 255, 0.85);
}

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

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

.footer-links a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover, .footer-links a:focus {
  color: var(--color-background);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-lg);
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
  font-size: var(--text-sm);
}

/* ============================================
   UTILITIES
   ============================================ */

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

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.py-1 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-4 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

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

/* ============================================
   ACCESSIBILITY
   ============================================ */

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-background);
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  z-index: 10000;
  border-radius: 0 0 var(--radius-md) 0;
}

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

/* Focus visible for better accessibility */
:focus-visible {
  outline: 3px solid var(--color-neutral);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--color-neutral);
  outline-offset: 2px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .site-header, .site-footer, .hero {
    display: none;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
  }

  .section {
    page-break-inside: avoid;
  }
}

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

@media (max-width: 768px) {
  .section {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-content {
    padding: var(--spacing-xl) var(--spacing-md);
  }

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