/* Vibe App - Documentation Styles */

:root {
  /* Couleurs de l'app Vibe */
  --primary-color: #FF7A59;
  --primary-dark: #E55A3A;
  --primary-light: #FF9580;
  --secondary-color: #A8D8B9;
  --secondary-dark: #8BC9A1;
  --accent-color: #F6E05E;
  --text-primary: #1F2937;
  --text-secondary: #6B7280;
  --text-tertiary: #9CA3AF;
  --background: #FAFAFA;
  --surface: #FFFFFF;
  --surface-variant: #F5F5F5;
  --border: #E5E7EB;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #3B82F6;
  --shadow: 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);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background);
}

/* Header & Navigation */
header {
  background: var(--background);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 0.5rem;
}

.logo img {
  height: 60px;
  width: auto;
}

.logo span {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-color);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: var(--transition);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
}

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

.nav-links a.active {
  color: var(--primary-color);
  background: rgba(255, 122, 89, 0.1);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 3px;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 4rem 2rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  color: white;
  max-width: 600px;
  margin: 0 auto;
}

/* Main Content */
main {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.content-section {
  margin-bottom: 3rem;
}

h1, h2, h3, h4 {
  color: var(--text-primary);
  margin-bottom: 1rem;
}

h1 {
  font-size: 2rem;
  border-bottom: 3px solid var(--primary-color);
  padding-bottom: 0.5rem;
}

h2 {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-top: 2rem;
}

h3 {
  font-size: 1.25rem;
  margin-top: 1.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

ul, ol {
  margin: 1rem 0 1rem 2rem;
  color: var(--text-secondary);
}

li {
  margin-bottom: 0.5rem;
}

/* Cards */
.card {
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: white;
  font-size: 1.5rem;
}

.card h3 {
  margin-top: 0;
  color: var(--text-primary);
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

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

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

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

.btn-accent:hover {
  background: var(--accent-dark);
}

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

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

/* Alert Boxes */
.alert {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  margin: 1.5rem 0;
}

.alert-info {
  background: rgba(255, 122, 89, 0.1);
  border-left: 4px solid var(--primary-color);
}

.alert-warning {
  background: rgba(237, 137, 54, 0.1);
  border-left: 4px solid var(--warning);
}

.alert-danger {
  background: rgba(245, 101, 101, 0.1);
  border-left: 4px solid var(--error);
}

/* Steps */
.steps {
  counter-reset: step-counter;
  list-style: none;
  margin-left: 0;
}

.steps li {
  counter-increment: step-counter;
  position: relative;
  padding-left: 3rem;
  margin-bottom: 1.5rem;
}

.steps li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Table of Contents */
.toc {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.toc h4 {
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.toc ul {
  list-style: none;
  margin: 0;
}

.toc li {
  margin-bottom: 0.5rem;
}

.toc a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

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

/* Footer */
footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  margin-top: 4rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer-section h4 {
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
  margin: 0;
}

.footer-section a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

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

.footer-bottom {
  max-width: 1200px;
  margin: 2rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Accordion */
.accordion {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 1rem 0;
}

.accordion-item {
  border-bottom: 1px solid var(--border);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  background: var(--surface);
  padding: 1rem 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  transition: var(--transition);
}

.accordion-header:hover {
  background: var(--border);
}

.accordion-header::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--primary-color);
}

.accordion-item.active .accordion-header::after {
  content: '-';
}

.accordion-content {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.accordion-item.active .accordion-content {
  padding: 1.5rem;
  max-height: 1000px;
}

/* Last Updated */
.last-updated {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 2rem;
}

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--background);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
    box-shadow: var(--shadow);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links a {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
  }

  .menu-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1rem;
  }

  main {
    padding: 2rem 1rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* Language Selector */
.lang-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 1rem;
}

.lang-selector a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid var(--border);
  color: var(--text-secondary);
}

.lang-selector a:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.lang-selector a.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

/* Nav container for links + lang */
.nav-right {
  display: flex;
  align-items: center;
}

/* Print Styles */
@media print {
  header, footer, .back-to-top {
    display: none;
  }

  main {
    max-width: 100%;
    padding: 0;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* Responsive lang selector */
@media (max-width: 768px) {
  .lang-selector {
    position: absolute;
    top: 1rem;
    right: 4rem;
  }

  .nav-right {
    flex-direction: column;
  }
}