/* Premium 2026 non-destructive upgrade layer */
:root {
  --premium-ink: #172033;
  --premium-muted: #64748b;
  --premium-blue: #245c9f;
  --premium-blue-dark: #103766;
  --premium-green: #17845b;
  --premium-gold: #c77700;
  --premium-red: #c43d45;
  --premium-bg: #f6f8fb;
  --premium-surface: rgba(255, 255, 255, .92);
  --premium-line: rgba(36, 92, 159, .16);
  --premium-shadow: 0 18px 50px rgba(16, 55, 102, .13);
  --premium-radius: 8px;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--premium-ink);
  background:
    linear-gradient(180deg, rgba(246, 248, 251, .95), #fff 440px),
    radial-gradient(circle at 12% 4%, rgba(36, 92, 159, .08), transparent 30%);
  text-rendering: optimizeLegibility;
}

body::selection {
  background: rgba(36, 92, 159, .18);
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 10000;
  transform: translateY(-140%);
  background: var(--premium-blue-dark);
  color: #fff;
  padding: 10px 14px;
  border-radius: 6px;
  text-decoration: none;
  transition: transform .2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(36, 92, 159, .38);
  outline-offset: 3px;
}

header {
  background: rgba(255, 255, 255, .86) !important;
  border-bottom: 1px solid var(--premium-line);
  box-shadow: 0 10px 34px rgba(16, 55, 102, .08) !important;
  backdrop-filter: blur(16px);
}

.logo h1,
.section-title,
.page-title,
.featured-title,
.sidebar-title {
  letter-spacing: 0;
}

nav a {
  border-radius: 7px !important;
  transition: background .2s ease, color .2s ease, transform .2s ease !important;
}

nav a:hover {
  transform: translateY(-1px);
}

main {
  overflow: clip;
}

.hero,
.page-header,
.statistics {
  position: relative;
  isolation: isolate;
  background:
    linear-gradient(118deg, rgba(16, 55, 102, .96), rgba(36, 92, 159, .90)),
    radial-gradient(circle at 20% 10%, rgba(255,255,255,.24), transparent 30%),
    linear-gradient(45deg, var(--premium-blue), var(--premium-green)) !important;
}

.hero::after,
.page-header::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 80px;
  z-index: -1;
  background: linear-gradient(180deg, transparent, rgba(255,255,255,.12));
}

.hero-image,
.profile-image,
.featured-card,
.article-card,
.resource-card,
.exam-card,
.category-card,
.formation-card,
.actualite-card,
.info-card,
.card,
.sidebar,
.map-container {
  border-radius: var(--premium-radius) !important;
  border: 1px solid var(--premium-line);
  box-shadow: var(--premium-shadow) !important;
}

.resource-card,
.exam-card,
.article-card,
.formation-card,
.actualite-card,
.category-card {
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease !important;
}

.resource-card:hover,
.exam-card:hover,
.article-card:hover,
.formation-card:hover,
.actualite-card:hover,
.category-card:hover {
  transform: translateY(-5px) !important;
  border-color: rgba(36, 92, 159, .32);
  box-shadow: 0 24px 70px rgba(16, 55, 102, .17) !important;
}

.btn,
.read-more,
.resource-download-btn,
.newsletter-btn,
.category-btn,
.page-btn,
.btn-concours {
  border-radius: 7px !important;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease !important;
}

.btn:hover,
.read-more:hover,
.resource-download-btn:hover,
.newsletter-btn:hover,
.category-btn:hover,
.page-btn:hover,
.btn-concours:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(16, 55, 102, .18);
}

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

.premium-section {
  padding: clamp(2.8rem, 6vw, 5rem) 0;
  background: #fff;
}

.premium-section:nth-of-type(even) {
  background: var(--premium-bg);
}

.premium-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  padding: 5px 10px;
  border: 1px solid var(--premium-line);
  border-radius: 999px;
  color: var(--premium-blue);
  background: rgba(36, 92, 159, .07);
  font-weight: 700;
  font-size: .86rem;
}

.premium-title {
  color: var(--premium-blue-dark);
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  line-height: 1.2;
  margin-bottom: 12px;
}

.premium-lead {
  max-width: 820px;
  color: var(--premium-muted);
  font-size: 1.05rem;
  margin-bottom: 26px;
}

.premium-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.premium-card {
  background: var(--premium-surface);
  border: 1px solid var(--premium-line);
  border-radius: var(--premium-radius);
  padding: 20px;
  box-shadow: 0 12px 34px rgba(16, 55, 102, .08);
}

.premium-card strong {
  display: block;
  color: var(--premium-blue-dark);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.premium-card p {
  color: var(--premium-muted);
  margin: 0;
}

.premium-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.premium-stat {
  background: linear-gradient(180deg, #fff, #f8fbff);
  border: 1px solid var(--premium-line);
  border-radius: var(--premium-radius);
  padding: 18px;
  box-shadow: 0 12px 34px rgba(16, 55, 102, .08);
}

.premium-stat span {
  display: block;
  color: var(--premium-blue);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.premium-stat small {
  display: block;
  color: var(--premium-muted);
  margin-top: 8px;
  font-size: .9rem;
}

.premium-timeline {
  display: grid;
  gap: 12px;
  counter-reset: timeline;
}

.premium-timeline li {
  list-style: none;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--premium-line);
  border-radius: var(--premium-radius);
}

.premium-timeline li::before {
  counter-increment: timeline;
  content: counter(timeline);
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--premium-blue);
  color: #fff;
  font-weight: 800;
}

.premium-faq details {
  background: #fff;
  border: 1px solid var(--premium-line);
  border-radius: var(--premium-radius);
  padding: 14px 16px;
  margin-bottom: 10px;
}

.premium-faq summary {
  cursor: pointer;
  color: var(--premium-blue-dark);
  font-weight: 800;
}

.premium-faq p {
  color: var(--premium-muted);
  margin-top: 10px;
}

.premium-floating-cta {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 999;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  border-radius: 999px;
  background: var(--premium-blue-dark);
  color: #fff;
  text-decoration: none;
  font-weight: 800;
  box-shadow: 0 16px 40px rgba(16, 55, 102, .28);
}

.premium-floating-cta:hover {
  background: var(--premium-blue);
}

.premium-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform .6s ease;
}

.premium-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}

@media (max-width: 960px) {
  .premium-grid,
  .premium-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .premium-floating-cta {
    left: 16px;
    right: 16px;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .premium-grid,
  .premium-stat-grid {
    grid-template-columns: 1fr;
  }

  body {
    padding-bottom: 58px;
  }
}