/* ========================================
   Alces Informatique - Main Stylesheet
   Mobile-first, dark/light mode
   ======================================== */

/* --- Custom Properties (aliases to shared/variables.css + www-specific) --- */
:root {
  /* Aliases mapping www names → shared names */
  --primary: var(--color-primary);
  --primary-hover: var(--color-primary-hover);
  --primary-light: var(--color-primary-light);
  --text: var(--text-primary);
  --text-secondary: var(--text-secondary);
  --bg: var(--bg-body);
  --bg-alt: var(--bg-surface-hover);
  --bg-card: var(--bg-surface);
  --border: var(--border-color);
  --shadow: var(--shadow-sm);
  --shadow-lg: var(--shadow-md);
  --radius: 8px;
  --radius-lg: var(--radius-lg);
  --transition: var(--transition-normal);
  --max-width: 1200px;
  --header-height: 64px;
}

/* www-specific variables (light) */
[data-theme="light"] {
  --header-bg: #ffffff;
  --footer-bg: #2a2a2a;
  --footer-text: #e0e0e0;
  --overlay: rgba(0, 0, 0, 0.5);
}

/* www-specific variables (dark) */
[data-theme="dark"] {
  --header-bg: #1e1e1e;
  --footer-bg: #111111;
  --footer-text: #e0e0e0;
  --overlay: rgba(0, 0, 0, 0.7);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background var(--transition), color var(--transition);
}

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

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
  color: inherit;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  padding: 8px 16px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  z-index: 9999;
  font-weight: 600;
}

.skip-link:focus {
  top: 8px;
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px var(--shadow);
  transition: background var(--transition);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo img {
  height: 40px;
  width: auto;
}

/* --- Desktop Nav --- */
.nav-desktop {
  display: none;
  align-items: center;
  gap: 4px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}

.nav-link:hover, .nav-link:focus-visible, .nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-link .chevron {
  width: 12px;
  height: 12px;
  transition: transform var(--transition);
}

.nav-item:hover .chevron,
.nav-item:focus-within .chevron {
  transform: rotate(180deg);
}

/* Dropdown */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px var(--shadow-lg);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: 10px 14px;
  color: var(--text);
  font-size: 0.875rem;
  border-radius: calc(var(--radius) - 2px);
  transition: background var(--transition), color var(--transition);
}

.dropdown-link:hover, .dropdown-link:focus-visible {
  background: var(--primary-light);
  color: var(--primary);
}

/* --- Header Controls --- */
.header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-portal {
  font-size: 0.8125rem;
  padding: 6px 14px;
  border-radius: var(--radius);
  white-space: nowrap;
  text-decoration: none;
}

@media (max-width: 768px) {
  .btn-portal { display: none; }
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  transition: background var(--transition);
}

.icon-btn:hover, .icon-btn:focus-visible {
  background: var(--primary-light);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

.lang-toggle {
  font-size: 0.8rem;
  font-weight: 700;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.lang-toggle:hover, .lang-toggle:focus-visible {
  background: var(--primary-light);
}

/* --- Mobile Menu Toggle --- */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Mobile Nav --- */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  padding: 16px;
  overflow-y: auto;
  z-index: 99;
}

.nav-mobile.open {
  display: block;
}

.nav-mobile-section {
  margin-bottom: 16px;
}

.nav-mobile-section-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  padding: 8px 12px;
}

.nav-mobile-link {
  display: block;
  padding: 12px;
  color: var(--text);
  font-size: 1rem;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}

.nav-mobile-link:hover, .nav-mobile-link:focus-visible, .nav-mobile-link.active {
  background: var(--primary-light);
  color: var(--primary);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  height: 50vh;
  min-height: 300px;
  max-height: 500px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.3) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 24px;
}

.hero-content h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}

.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--primary-hover);
  color: #fff;
  transform: translateY(-1px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border: 2px solid var(--primary);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}

.btn-outline:hover, .btn-outline:focus-visible {
  background: var(--primary);
  color: #fff;
}

/* --- Value Props (Home) --- */
.value-props {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 48px 16px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.value-card {
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition), box-shadow var(--transition);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px var(--shadow-lg);
}

.value-card img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 50%;
  margin: 0 auto 16px;
}

.value-card h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
  color: var(--primary);
}

.value-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* --- Page Container --- */
.page {
  flex: 1;
}

.page-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 16px 64px;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.page-subtitle {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

/* --- Content Sections --- */
.content-section {
  margin-bottom: 40px;
}

.content-section h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--primary);
}

.content-section h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.content-section p {
  margin-bottom: 16px;
  line-height: 1.7;
}

.content-section img {
  border-radius: var(--radius-lg);
  margin: 24px 0;
}

/* --- Feature Cards (Member Service) --- */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 24px;
}

.feature-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition);
}

.feature-card:hover {
  border-color: var(--primary);
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--primary);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Service Cards (Products) --- */
.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.service-card {
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--primary);
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--shadow);
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.service-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 12px;
  color: var(--primary);
}

/* --- Pricing Cards --- */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin: 32px 0;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px var(--shadow-lg);
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(232, 135, 42, 0.15);
}

.pricing-header {
  padding: 24px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.pricing-card.featured .pricing-header {
  background: var(--primary);
  color: #fff;
  border-bottom-color: var(--primary);
}

.pricing-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.pricing-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.8;
  margin-bottom: 12px;
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  margin-bottom: 4px;
}

.pricing-amount .annual {
  font-size: 1.75rem;
  font-weight: 800;
}

.pricing-amount .period {
  font-size: 0.85rem;
  opacity: 0.7;
}

.pricing-monthly {
  font-size: 0.85rem;
  opacity: 0.7;
}

.pricing-body {
  padding: 24px;
}

.pricing-target {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  font-style: italic;
}

.pricing-features {
  list-style: none;
}

.pricing-features li {
  padding: 6px 0;
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.pricing-features li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}

.pricing-extra-info {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* --- Additional Services Sections --- */
.additional-section {
  margin-top: 48px;
}

.additional-section h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--primary);
}

.additional-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
}

.additional-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.additional-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 8px;
}

.member-services-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 16px;
}

.member-services-list li {
  padding: 10px 16px;
  background: var(--bg-alt);
  border-radius: var(--radius);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.member-services-list li::before {
  content: '•';
  color: var(--primary);
  font-weight: 700;
}

/* --- Contact Form --- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

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

.contact-info-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.contact-info-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  color: var(--text);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}

.contact-link:last-child {
  border-bottom: none;
}

.contact-link:hover {
  color: var(--primary);
}

.contact-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--primary);
}

/* --- Career Page --- */
.career-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
  margin-bottom: 32px;
}

.career-hero img {
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.career-cta {
  margin-top: 32px;
  padding: 24px;
  background: var(--primary-light);
  border-radius: var(--radius-lg);
  text-align: center;
}

.career-cta a {
  font-weight: 700;
  font-size: 1.1rem;
}

/* --- Footer --- */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 40px 16px 24px;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.footer-brand img {
  height: 36px;
  margin-bottom: 12px;
  filter: brightness(1.5);
}

.footer-brand p {
  font-size: 0.85rem;
  opacity: 0.7;
}

.footer-links h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  color: var(--primary);
}

.footer-links a {
  display: block;
  padding: 4px 0;
  color: var(--footer-text);
  font-size: 0.9rem;
  opacity: 0.8;
  transition: opacity var(--transition), color var(--transition);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--primary);
}

.footer-contact a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  color: var(--footer-text);
  font-size: 0.9rem;
  opacity: 0.8;
  transition: opacity var(--transition);
}

.footer-contact a:hover {
  opacity: 1;
  color: var(--primary);
}

.footer-contact svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 24px auto 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.5;
}

/* ========================================
   Responsive - Tablet+
   ======================================== */
@media (min-width: 768px) {
  .header-inner {
    padding: 0 24px;
  }

  .nav-desktop {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  .value-props {
    grid-template-columns: repeat(3, 1fr);
    padding: 64px 24px;
  }

  .page-content {
    padding: 48px 24px 80px;
  }

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

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-layout {
    grid-template-columns: 1.5fr 1fr;
  }

  .career-hero {
    grid-template-columns: 1fr 1fr;
  }

  .member-services-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

/* ========================================
   Responsive - Large Desktop
   ======================================== */
@media (min-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

  .hero {
    max-height: 550px;
  }
}

/* ========================================
   Utilities
   ======================================== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }