/* ================================
   BASE GLOBALE
   ================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #162439;           /* bleu nuit principal */
  --bg-soft: #1f2f4a;      /* variante un peu plus claire */
  --card-bg: #1b2940;
  --accent: #f3a31d;       /* or */
  --accent-soft: #f8c35a;
  --text: #f9fafb;
  --muted: #b7c2d5;
  --border: #23324b;
  --radius-lg: 16px;
  --radius-md: 12px;
  --max-width: 1100px;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #23324b 0, #162439 55%, #0b1728 100%);
  color: var(--text);
}

body {
  line-height: 1.5;
}

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

/* Conteneur général et sections */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section {
  padding: 3.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

/* ================================
   HEADER & NAVIGATION
   ================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: rgba(22, 36, 57, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.4rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* IMAGE DU LOGO  (taille ajustée) */
.logo-img {
  height: 42px;      /* desktop */
  width: auto;
  display: block;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  color: #f9fafb;
  font-size: 1.6rem;
  cursor: pointer;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  position: relative;
}

.nav-menu a:hover {
  color: var(--accent);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.2s ease;
}

.nav-menu a:hover::after {
  width: 100%;
}

/* ================================
   BOUTONS
   ================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  gap: 0.4rem;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: #162439;
}

.btn.primary:hover {
  filter: brightness(1.05);
}

.btn.outline {
  background: transparent;
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn.full-width {
  width: 100%;
}

/* ================================
   HERO (ACCUEIL)
   ================================ */

.hero-section {
  padding-top: 4.5rem;
  background: radial-gradient(circle at top left, #1f2f4a 0, #162439 55%, #0b1728 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.1fr);
  gap: 2.4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(243, 163, 29, 0.4);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--accent-soft);
  text-transform: uppercase;
}

.hero-text h1 {
  font-size: clamp(2.4rem, 4vw, 3rem);
  margin: 0.9rem 0 0.7rem;
}

.hero-text p {
  color: var(--muted);
  max-width: 30rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

/* ================================
   CARTE VIDEO HERO
   ================================ */

.hero-video-card {
  background: linear-gradient(135deg, #1b2940, #111827);
  border-radius: var(--radius-lg);
  padding: 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.45);
}

.hero-video-header h2 {
  margin: 0 0 0.2rem;
  font-size: 1.15rem;
}

.hero-video-header p {
  margin: 0 0 0.7rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.hero-video-player {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: #0b1728;
}

.hero-video-player::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.hero-video-player iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ================================
   TITRES DE SECTION
   ================================ */

.section-header {
  margin-bottom: 1.6rem;
}

.section-header h1,
.section-header h2 {
  margin: 0 0 0.3rem;
}

.section-header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* ================================
   LISTE DE VIDEOS / FILTRES
   ================================ */

.filters-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.filters-bar select,
.filters-bar input[type="search"] {
  background: #111827;
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 0.5rem 0.9rem;
  color: var(--text);
  font-size: 0.9rem;
}

.filters-bar input::placeholder {
  color: #64748b;
}

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

.video-card {
  background: #111827;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.video-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 35px rgba(0, 0, 0, 0.45);
  border-color: rgba(243, 163, 29, 0.75);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-badge,
.video-duration {
  position: absolute;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.7rem;
  background: rgba(0, 0, 0, 0.6);
}

.video-badge {
  left: 0.45rem;
  top: 0.45rem;
  color: var(--accent-soft);
}

.video-duration {
  right: 0.45rem;
  bottom: 0.45rem;
  color: #e5e7eb;
}

.video-body {
  padding: 0.75rem 0.85rem 0.9rem;
}

.video-title {
  margin: 0 0 0.3rem;
  font-size: 0.95rem;
}

.video-meta {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

/* ================================
   CARTES GÉNÉRIQUES
   ================================ */

.card {
  background: #111827;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 1.3rem 1.4rem;
}

/* ================================
   FORMULAIRES
   ================================ */

.form-group {
  margin-bottom: 0.9rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #020617;
  color: var(--text);
  padding: 0.55rem 0.75rem;
  font-size: 0.9rem;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-note {
  font-size: 0.8rem;
  color: var(--muted);
}

.form-success {
  font-size: 0.9rem;
  color: #4ade80;
}

/* ================================
   A PROPOS (HOME)
   ================================ */

.about-section {
  background: #162439;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: flex-start;
}

.about-text p {
  color: var(--muted);
  margin-bottom: 0.6rem;
}

.about-list {
  margin: 0.5rem 0 0.3rem;
  padding-left: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.9rem;
}

.about-card {
  background: #111827;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 1.1rem 1.2rem;
  font-size: 0.9rem;
  color: var(--muted);
}

/* ================================
   PAGE A PROPOS
   ================================ */

.about-page {
  max-width: 900px;
}

.about-page-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
}

/* ================================
   FOOTER
   ================================ */

.site-footer {
  background: #0b1728;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 2rem;
  padding-bottom: 1.5rem;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 1.5rem;
  margin-bottom: 1.2rem;
}

.footer-col h3,
.footer-col h4 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.footer-text {
  margin: 0 0 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.2rem;
  font-size: 0.85rem;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent-soft);
}

.footer-bottom {
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 0.8rem;
}

/* ================================
   PAGES LOGIN / REGISTER
   ================================ */

.auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(circle at top, #23324b 0, #162439 55%, #0b1728 100%);
}

.auth-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.25rem;
}

.auth-wrapper {
  width: 100%;
  max-width: 460px;
}

.auth-card {
  background: #111827;
  border-radius: 18px;
  border: 1px solid var(--border);
  padding: 1.6rem 1.7rem;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.55);
}

.auth-card h1 {
  margin: 0 0 0.5rem;
  font-size: 1.4rem;
}

.auth-subtitle {
  margin: 0 0 1.1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.auth-header {
  text-align: center;
  margin-bottom: 1.2rem;
}

.auth-header .logo {
  justify-content: center;
  margin-bottom: 0.7rem;
}

.auth-footer-text {
  margin-top: 0.9rem;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}

.auth-footer-text a {
  color: var(--accent-soft);
  text-decoration: none;
}

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

/* ================================
   RESPONSIVE
   ================================ */

@media (max-width: 960px) {
  .header-content {
    height: auto;
    padding: 0.6rem 0;
  }

  .logo-img {
    height: 36px;    /* tablette */
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .videos-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-grid,
  .about-page-grid,
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  /* --- MENU BURGER --- */
  .nav-toggle {
    display: inline-flex;
  }

  .nav-menu {
    position: absolute;
    right: 1.25rem;
    top: 3.2rem;
    flex-direction: column;
    gap: 0.4rem;
    background: #111827;
    border-radius: 14px;
    padding: 0.7rem 0.9rem;
    display: none;
    border: 1px solid var(--border);
  }

  .nav-menu.open {
    display: flex;
  }

  .logo-img {
    height: 30px;   /* mobile plus petit */
  }

  .section {
    padding: 2.5rem 0;
  }

  .videos-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  /* --- FILTRES EMISYON YO : MOBILE --- */

  .filters-card {
    border-radius: 18px;
    padding: 1rem 1rem;
  }

  .filters-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .filters-bar > * {
    width: 100%;
  }

  .filters-bar select,
  .filters-bar input[type="search"],
  .filters-bar button,
  .filters-bar .btn {
    width: 100%;
    text-align: left;
  }
}