/* =============================================
   Les Vols Arabais — Design System
   ============================================= */

/* --- Custom Properties --- */
:root {
  --color-primary: #e85d04;
  --color-primary-dark: #c94602;
  --color-accent: #0077b6;
  --color-accent-light: #90e0ef;
  --color-text: #1a1a1a;
  --color-text-muted: #6b6b6b;
  --color-bg: #ffffff;
  --color-bg-muted: #f7f5f2;
  --color-border: #e5e5e5;
  --color-success: #2a9d8f;

  --font-heading: "Poppins", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;

  --radius: 12px;
  --radius-sm: 6px;
  --max-width: 1200px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.10);
  --transition: 0.2s ease;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-body); color: var(--color-text); background: var(--color-bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: 0; background: transparent; }

/* --- Utilities --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-md); }
.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; }
.btn { display: inline-block; padding: 0.75rem 1.5rem; border-radius: var(--radius-sm); font-weight: 600; transition: var(--transition); }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn-outline { border: 2px solid var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.0; color: var(--color-text); }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: 1.25rem; }
p { margin-bottom: var(--space-sm); }

/* --- Header --- */
.site-header { position: sticky; top: 0; background: rgba(255,255,255,0.97); backdrop-filter: blur(8px); border-bottom: 1px solid var(--color-border); z-index: 100; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 0; }
.brand-text { font-family: var(--font-heading); font-weight: 700; font-size: 1.25rem; color: var(--color-primary); letter-spacing: -0.01em; }
.primary-nav { display: flex; align-items: center; gap: var(--space-md); }
.primary-nav ul { display: flex; gap: var(--space-sm); }
.primary-nav a { color: var(--color-text); font-weight: 500; padding: 0.5rem 0.75rem; }
.primary-nav a:hover { color: var(--color-primary); }
.lang-switcher { display: flex; gap: 0.25rem; }
.lang-switcher a { padding: 0.25rem 0.5rem; color: var(--color-text-muted); font-size: 0.875rem; font-weight: 600; }
.lang-switcher a.active { color: var(--color-primary); }
.nav-toggle { display: none; width: 32px; height: 32px; flex-direction: column; justify-content: space-around; padding: 0.25rem; }
.nav-toggle span { display: block; height: 2px; background: var(--color-text); transition: var(--transition); }

/* --- Hero --- */
.hero { padding: var(--space-xl) 0; background: linear-gradient(180deg, var(--color-bg-muted) 0%, var(--color-bg) 100%); }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-lg); align-items: center; }
.hero h1 { margin-bottom: var(--space-sm); }
.hero p.lede { font-size: 1.125rem; color: var(--color-text-muted); margin-bottom: var(--space-md); }
.hero-mascot img { width: 100%; max-width: 460px; margin: 0 auto; }
.subscriber-count { margin-top: var(--space-sm); font-size: 0.875rem; color: var(--color-text-muted); }

/* --- Newsletter form --- */
.newsletter-form { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.newsletter-form input[type="email"] { flex: 1 1 220px; padding: 0.75rem 1rem; border: 2px solid var(--color-border); border-radius: var(--radius-sm); font: inherit; }
.newsletter-form input[type="email"]:focus { outline: none; border-color: var(--color-primary); }

/* --- Media logos --- */
.media-strip { padding: var(--space-lg) 0; background: var(--color-bg); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.media-strip h2 { text-align: center; font-size: 1rem; color: var(--color-text-muted); font-weight: 500; margin-bottom: var(--space-md); text-transform: uppercase; letter-spacing: 0.1em; }
.media-logos { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-md); align-items: center; opacity: 0.7; }
.media-logos img { height: 32px; max-width: 120px; filter: grayscale(100%); }

/* --- How it works --- */
.how-it-works { padding: var(--space-xl) 0; }
.how-it-works h2 { text-align: center; margin-bottom: var(--space-lg); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
.step { text-align: center; padding: var(--space-md); }
.step-icon { width: 64px; height: 64px; margin: 0 auto var(--space-sm); background: var(--color-bg-muted); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--color-primary); }

/* --- Deal cards --- */
.deals { padding: var(--space-xl) 0; background: var(--color-bg-muted); }
.deals h2 { text-align: center; margin-bottom: var(--space-lg); }
.deals-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--space-md); }
.deal-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: transform var(--transition); }
.deal-card:hover { transform: translateY(-4px); }
.deal-card img { width: 100%; height: 180px; object-fit: cover; background: var(--color-bg-muted); }
.deal-card-body { padding: var(--space-md); }
.deal-route { font-weight: 600; margin-bottom: 0.25rem; }
.deal-price { color: var(--color-primary); font-size: 1.25rem; font-weight: 700; }
.deal-badge { display: inline-block; background: var(--color-success); color: #fff; font-size: 0.75rem; font-weight: 700; padding: 0.2rem 0.5rem; border-radius: var(--radius-sm); }
.deal-dates { font-size: 0.875rem; color: var(--color-text-muted); margin-top: 0.5rem; }

/* --- Testimonials --- */
.testimonials { padding: var(--space-xl) 0; }
.testimonials h2 { text-align: center; margin-bottom: var(--space-lg); }
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: var(--space-md); }
.testimonial { background: var(--color-bg-muted); padding: var(--space-md); border-radius: var(--radius); }
.testimonial blockquote { font-style: italic; margin-bottom: var(--space-sm); }
.testimonial-author { display: flex; align-items: center; gap: var(--space-sm); }
.testimonial-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--color-accent-light); }
.stars { color: var(--color-secondary, #f4b400); }

/* --- Premium teaser --- */
.premium-teaser { padding: var(--space-xl) 0; background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: #fff; }
.premium-teaser h2 { color: #fff; }
.premium-teaser .btn-outline { border-color: #fff; color: #fff; }
.premium-teaser .btn-outline:hover { background: #fff; color: var(--color-primary); }
.premium-grid { display: grid; grid-template-columns: 2fr 1fr; gap: var(--space-lg); align-items: center; }

/* --- CTA band --- */
.cta-band { padding: var(--space-lg) 0; background: var(--color-bg-muted); text-align: center; }
.cta-band h2 { margin-bottom: var(--space-md); }
.cta-band .newsletter-form { max-width: 480px; margin: 0 auto; }

/* --- FAQ --- */
.faq { padding: var(--space-xl) 0; }
.faq h1 { text-align: center; margin-bottom: var(--space-lg); }
.faq details { border-bottom: 1px solid var(--color-border); padding: var(--space-sm) 0; }
.faq summary { font-weight: 600; cursor: pointer; padding: 0.5rem 0; }
.faq summary:hover { color: var(--color-primary); }
.faq details p { padding: 0.5rem 0 0.5rem 1rem; color: var(--color-text-muted); }

/* --- Footer --- */
.site-footer { background: var(--color-text); color: #d4d4d4; padding: var(--space-lg) 0 var(--space-md); margin-top: var(--space-xl); }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: var(--space-sm); }
.site-footer a { color: #d4d4d4; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-md); margin-bottom: var(--space-md); }
.footer-links ul { display: flex; flex-direction: column; gap: 0.5rem; }
.social { display: flex; gap: 0.75rem; margin-top: var(--space-sm); }
.social a { display: inline-flex; width: 36px; height: 36px; align-items: center; justify-content: center; border: 1px solid #444; border-radius: 50%; }
.footer-bottom { border-top: 1px solid #333; padding-top: var(--space-md); text-align: center; font-size: 0.875rem; color: #888; }

/* --- Language selector (root index) --- */
.lang-select { min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: var(--space-md); background: linear-gradient(135deg, var(--color-bg-muted), var(--color-bg)); }
.lang-select-inner { max-width: 520px; }
.lang-select h1 { margin-bottom: var(--space-sm); }
.lang-select .lang-options { display: flex; gap: var(--space-sm); justify-content: center; margin-top: var(--space-md); flex-wrap: wrap; }
.lang-select .btn { min-width: 120px; }

/* --- 404 --- */
.error-page { min-height: 70vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: var(--space-md); }
.error-page .code { font-size: clamp(4rem, 12vw, 8rem); font-weight: 700; color: var(--color-primary); line-height: 1; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .primary-nav { position: absolute; top: 100%; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; gap: var(--space-sm); padding: var(--space-md); border-bottom: 1px solid var(--color-border); transform: translateY(-10px); opacity: 0; pointer-events: none; transition: var(--transition); }
  .primary-nav[data-open="true"] { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .primary-nav ul { flex-direction: column; gap: 0; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mascot { order: -1; }
  .steps { grid-template-columns: 1fr; }
  .premium-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-grid { grid-template-columns: 1fr; }
}