/* ==========================================================================
   TOLINK – Style Principal
   Expert Informatique Montélimar (Drôme 26)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. VARIABLES CSS
   -------------------------------------------------------------------------- */
:root {
  /* Couleurs principales */
  --color-primary: #0066ff;
  --color-primary-dark: #0052cc;
  --color-primary-light: #e8f0fe;
  --color-primary-gradient: linear-gradient(135deg, #0066ff, #0052cc);

  /* Couleurs neutres */
  --color-black: #1a1a1a;
  --color-dark: #333333;
  --color-gray: #666666;
  --color-gray-light: #999999;
  --color-border: #e0e0e0;
  --color-bg-alt: #f8f9fa;
  --color-white: #ffffff;

  /* Typographie */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-base: 1rem;
  --line-height-base: 1.6;

  /* Espacements */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;

  /* Rayons de bordure */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 50px;

  /* Ombres */
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 30px rgba(0, 102, 255, 0.15);
  --shadow-btn: 0 4px 15px rgba(0, 0, 0, 0.2);
  --shadow-btn-hover: 0 6px 25px rgba(0, 0, 0, 0.3);
  --shadow-primary: 0 4px 12px rgba(0, 102, 255, 0.25);
  --shadow-primary-hover: 0 6px 20px rgba(0, 102, 255, 0.4);

  /* Transitions */
  --transition: all 0.3s ease;

  /* Largeur max */
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-black);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   3. HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
header {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem var(--spacing-md);
}

.logo-container {
  display: flex;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
}

.logo-container:hover {
  opacity: 0.85;
}

.logo-img {
  height: 45px;
  width: auto;
  object-fit: contain;
  transition: var(--transition);
}

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

.nav-links a {
  text-decoration: none;
  color: var(--color-black);
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  padding: 0.3rem 0;
}

.nav-links a:hover {
  color: var(--color-primary);
}

.nav-links a.active::after,
.nav-links a:hover::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s ease, left 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
  left: 0;
}

/* Bouton CTA dans la nav */
.nav-cta {
  background: var(--color-primary-gradient);
  color: var(--color-white) !important;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: var(--shadow-primary);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary-hover);
  color: var(--color-white) !important;
}

.nav-cta::after {
  display: none !important;
}

/* Menu burger mobile */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--color-black);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition);
}

/* --------------------------------------------------------------------------
   4. HERO SECTION
   -------------------------------------------------------------------------- */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
}

.hero h2 {
  font-size: 2.8rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-black);
  font-weight: 700;
  line-height: 1.2;
}

.hero h2 span {
  color: var(--color-primary);
}

.hero p {
  font-size: 1.2rem;
  color: var(--color-gray);
  max-width: 750px;
  margin: 0 auto var(--spacing-md);
  line-height: 1.8;
}

.hero .btn {
  margin-top: var(--spacing-sm);
}

/* Badges hero (page contact) */
.hero-badges {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-badge {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   5. SECTIONS GENERIQUES
   -------------------------------------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.services {
  background: var(--color-bg-alt);
  padding: var(--spacing-xl) var(--spacing-md);
}

.products {
  padding: var(--spacing-xl) var(--spacing-md);
  background: var(--color-white);
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-black);
  font-weight: 700;
  line-height: 1.3;
}

.section-subtitle {
  text-align: center;
  color: var(--color-gray);
  margin-bottom: var(--spacing-lg);
  font-size: 1.1rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   6. CARTES DE SERVICE
   -------------------------------------------------------------------------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  justify-content: center;
}

.service-card {
  background: var(--color-white);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: var(--color-primary-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 28px;
  color: var(--color-white);
}

.service-card h3 {
  font-size: 1.4rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-black);
  line-height: 1.3;
}

.service-card p {
  color: var(--color-gray);
  line-height: 1.7;
}

.service-card a {
  color: var(--color-primary);
  font-weight: 600;
}

.service-card a:hover {
  text-decoration: underline;
}

/* Carte mise en avant */
.service-card.highlight {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-white));
}

.service-card.highlight .service-cta {
  display: inline-block;
  margin-top: 1.2rem;
  padding: 0.7rem 1.5rem;
  background: var(--color-primary-gradient);
  color: var(--color-white);
  text-decoration: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  box-shadow: var(--shadow-primary);
}

.service-card.highlight .service-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary-hover);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   7. CARTES DE PRODUIT
   -------------------------------------------------------------------------- */
.product-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

.product-intro ul {
  list-style: none;
  margin-top: var(--spacing-sm);
}

.product-intro li {
  color: var(--color-gray);
  margin: 0.5rem 0;
  font-size: 1.05rem;
}

.product-intro li::before {
  content: "\2713  ";
  color: var(--color-primary);
  font-weight: bold;
  margin-right: 0.5rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  justify-content: center;
}

.product-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
  transition: var(--transition);
  border: 2px solid var(--color-border);
}

.product-card:hover {
  background: var(--color-white);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.product-card h3 {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
  color: var(--color-black);
}

.product-card p {
  color: var(--color-gray);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   8. SECTION CTA (Call-to-Action)
   -------------------------------------------------------------------------- */
.cta {
  background: var(--color-primary-gradient);
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  color: var(--color-white);
}

.cta h2 {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.cta p {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.95;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-md);
}

.cta a:not(.btn) {
  color: var(--color-white);
  font-weight: 700;
}

.cta .btn {
  color: var(--color-primary);
  background: var(--color-white);
  font-weight: 700;
}

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

/* --------------------------------------------------------------------------
   9. BOUTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--color-white);
  color: var(--color-primary);
  text-decoration: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow-btn);
  cursor: pointer;
  border: none;
  font-size: 1rem;
  font-family: var(--font-main);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-btn-hover);
  color: var(--color-primary);
}

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

.btn-primary:hover {
  box-shadow: var(--shadow-primary-hover);
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   10. SECTION TARIFS / DIAGNOSTIC
   -------------------------------------------------------------------------- */
.pricing-highlight {
  background: var(--color-primary-light);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 2rem 2.5rem;
  margin: var(--spacing-md) auto;
  max-width: 700px;
  text-align: center;
}

.pricing-highlight .price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.pricing-highlight .price-label {
  font-size: 1.1rem;
  color: var(--color-black);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.pricing-conditions {
  list-style: none;
  text-align: left;
  max-width: 500px;
  margin: var(--spacing-sm) auto 0;
}

.pricing-conditions li {
  color: var(--color-gray);
  padding: 0.4rem 0;
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.6;
}

.pricing-conditions li::before {
  content: "\2714";
  color: var(--color-primary);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* --------------------------------------------------------------------------
   11. CONTACT
   -------------------------------------------------------------------------- */
.contact-hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem var(--spacing-md) var(--spacing-md);
  text-align: center;
}

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

.contact-card {
  background: var(--color-white);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.contact-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.contact-card h3 {
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  font-size: 1.3rem;
}

.contact-info {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.contact-info a {
  color: var(--color-primary);
  text-decoration: none;
}

.contact-info a:hover {
  text-decoration: underline;
}

.contact-detail {
  color: var(--color-gray);
  font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   12. FORMULAIRE
   -------------------------------------------------------------------------- */
.form-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-white);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form-label {
  display: block;
  margin-bottom: 0.3rem;
  font-weight: 500;
  color: var(--color-black);
  font-size: 0.95rem;
}

.form-input {
  width: 100%;
  padding: 1rem;
  margin-bottom: var(--spacing-sm);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-size: 1rem;
  font-family: var(--font-main);
  transition: var(--transition);
  background: var(--color-white);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

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

/* --------------------------------------------------------------------------
   13. FAQ
   -------------------------------------------------------------------------- */
.faq {
  padding: 4rem var(--spacing-md);
  background: var(--color-white);
}

.faq-item {
  background: var(--color-bg-alt);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--color-primary);
  transition: var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(5px);
}

.faq-item h3 {
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  font-size: 1.2rem;
  line-height: 1.4;
}

.faq-item p {
  color: var(--color-gray);
  line-height: 1.7;
}

.faq-item a {
  color: var(--color-primary);
  font-weight: 600;
}

.faq-item a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   14. MENTIONS LEGALES / CGV
   -------------------------------------------------------------------------- */
.legal {
  padding: 4rem var(--spacing-md);
  background: var(--color-bg-alt);
}

.legal-content {
  max-width: 900px;
  margin: 0 auto;
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.legal-content h2 {
  color: var(--color-black);
  margin-bottom: var(--spacing-md);
  font-size: 2rem;
  text-align: center;
}

.legal-content h3 {
  color: var(--color-primary);
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  font-size: 1.3rem;
}

.legal-content p,
.legal-content ul {
  color: var(--color-gray);
  line-height: 1.8;
  margin-bottom: var(--spacing-sm);
}

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

.legal-content li {
  margin-bottom: 0.5rem;
}

.legal-content a {
  color: var(--color-primary);
}

.legal-content a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   15. FOOTER
   -------------------------------------------------------------------------- */
footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-lg) var(--spacing-md) 1.5rem;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.footer-section h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-white);
  font-size: 1.2rem;
}

.footer-section p,
.footer-section a {
  color: var(--color-gray-light);
  text-decoration: none;
  line-height: 2;
  display: block;
}

.footer-section a:hover {
  color: var(--color-primary);
}

.footer-services-list a {
  position: relative;
  padding-left: 1rem;
}

.footer-services-list a::before {
  content: "\203A";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-dark);
  color: var(--color-gray);
  font-size: 0.9rem;
}

.footer-bottom a {
  color: var(--color-primary);
  text-decoration: none;
}

.footer-bottom a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   16. SEO BLOCK (hidden)
   -------------------------------------------------------------------------- */
.seo-block {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   17. ANIMATIONS
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.service-card,
.product-card,
.contact-card,
.faq-item {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.service-card:nth-child(1),
.product-card:nth-child(1) { animation-delay: 0.1s; }
.service-card:nth-child(2),
.product-card:nth-child(2) { animation-delay: 0.2s; }
.service-card:nth-child(3),
.product-card:nth-child(3) { animation-delay: 0.3s; }
.service-card:nth-child(4),
.product-card:nth-child(4) { animation-delay: 0.4s; }
.service-card:nth-child(5) { animation-delay: 0.5s; }
.service-card:nth-child(6) { animation-delay: 0.6s; }

/* --------------------------------------------------------------------------
   18. PAGES (SPA index.html)
   -------------------------------------------------------------------------- */
.page {
  display: none;
}

.page.active {
  display: block;
}

/* --------------------------------------------------------------------------
   19. RESPONSIVE – TABLETTE (max-width: 1024px)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero h2 {
    font-size: 2.4rem;
  }

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

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

/* --------------------------------------------------------------------------
   20. RESPONSIVE – MOBILE (max-width: 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  nav {
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
  }

  .nav-links {
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .hero h2 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1.05rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

  .services,
  .products {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .cta {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .cta h2 {
    font-size: 1.6rem;
  }

  .service-grid,
  .product-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .service-card,
  .product-card {
    padding: 2rem 1.5rem;
  }

  .legal-content {
    padding: var(--spacing-md) 1.5rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .btn {
    padding: 0.8rem 2rem;
    font-size: 0.95rem;
  }

  .hero-badges {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
  }

  .pricing-highlight {
    padding: 1.5rem;
  }

  .pricing-highlight .price {
    font-size: 2rem;
  }

  .form-container {
    padding: 1.5rem;
  }
}

/* --------------------------------------------------------------------------
   21. RESPONSIVE – PETIT MOBILE (max-width: 480px)
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
  .hero h2 {
    font-size: 1.5rem;
  }

  .section-title {
    font-size: 1.4rem;
  }

  .nav-links {
    font-size: 0.9rem;
    gap: 0.6rem;
  }

  .logo-img {
    height: 35px;
  }
}

/* --------------------------------------------------------------------------
   22. UTILITAIRES
   -------------------------------------------------------------------------- */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-white { color: var(--color-white); }
.fw-bold { font-weight: 700; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }

/* --------------------------------------------------------------------------
   23. PRINT
   -------------------------------------------------------------------------- */
@media print {
  header, footer, .cta, .seo-block {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
  }

  .service-card, .product-card {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }
}