:root {
  --red: #7b1e1e;        /* rouge bordeaux */
  --yellow: #f2d46f;     /* jaune clair doux */
  --black: #0f0f0f;      /* noir profond */
  --bg: #0b0b0b;         /* fond général */
  --card: #151515;       /* cartes */
  --text: #f5f5f5;
  --muted: #a1a1a1;

  --radius: 16px;
  --ease: cubic-bezier(.22,.61,.36,1);
}
html, body {
  background: linear-gradient(180deg, #0b0b0b, #0e0e0e);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont;
}

a {
  color: inherit;
  text-decoration: none;
}
.hero {
  padding: 48px;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg,
      rgba(123,30,30,.25),
      rgba(0,0,0,.95));
  animation: heroIn .9s var(--ease) both;
}

@keyframes heroIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.h1 {
  font-size: 36px;
  letter-spacing: -.02em;
}

.p {
  color: var(--muted);
  max-width: 520px;
}
.btn {
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--red);
  font-weight: 600;
  transition: 
    transform .25s var(--ease),
    box-shadow .25s var(--ease),
    background .25s;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(123,30,30,.35);
}

.btn.ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,.15);
}
.btn.ghost:hover {
  background: rgba(255,255,255,.05);
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  background: linear-gradient(180deg, #171717, #111);
  border-radius: var(--radius);
  overflow: hidden;
  transition:
    transform .35s var(--ease),
    box-shadow .35s var(--ease);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0,0,0,.45);
}
.thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}

.card:hover .thumb img {
  transform: scale(1.06);
}

.thumbFallback {
  display: grid;
  place-items: center;
  font-size: 28px;
  color: var(--yellow);
  background: radial-gradient(circle, #222, #0c0c0c);
}
.pad {
  padding: 14px;
}

.meta {
  font-size: 12px;
  color: var(--yellow);
  letter-spacing: .08em;
}

.title {
  margin-top: 6px;
  font-weight: 600;
  line-height: 1.3;
}
.card {
  opacity: 0;
  animation: cardIn .6s var(--ease) forwards;
}

.card:nth-child(1) { animation-delay: .05s }
.card:nth-child(2) { animation-delay: .1s }
.card:nth-child(3) { animation-delay: .15s }
.card:nth-child(4) { animation-delay: .2s }

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.heroTop { display:flex; justify-content:flex-start; margin-bottom:14px; }
.heroBadge{
  font-size:12px;
  color: rgba(255,255,255,.8);
  border: 1px solid rgba(255,255,255,.12);
  padding: 6px 10px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  background: rgba(0,0,0,.25);
}

.heroActions{ margin-top:16px; display:flex; gap:10px; flex-wrap:wrap; }

.section{ margin-top:26px; }
.sectionHead{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:10px;
}
.h2{ margin:0; font-size:22px; }

.link{ opacity:.9; transition: opacity .2s; }
.link:hover{ opacity:1; }

.pill{
  position:absolute;
  top:10px; left:10px;
  font-size:11px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(0,0,0,.55);
  border: 1px solid rgba(255,255,255,.14);
  color: var(--yellow);
}

.empty{
  color: var(--muted);
  padding: 18px 2px;
}
.nav{
  position: sticky;
  top:0;
  z-index:50;
  backdrop-filter: blur(12px);
  background: linear-gradient(
    180deg,
    rgba(9,9,11,.75),
    rgba(9,9,11,.45)
  );
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.navInner{
  width:min(1100px, calc(100% - 40px));
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}

/* Brand */
.brand{
  display:flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  letter-spacing:.3px;
}
.brandIcon{
  font-size:18px;
}
.brandText{
  background: linear-gradient(135deg, #fff, var(--yellow));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
}

/* Links */
.links{
  display:flex;
  gap:18px;
  align-items:center;
}

.navLink{
  position:relative;
  font-size:14px;
  color:rgba(255,255,255,.85);
  padding:6px 2px;
  transition: color .2s ease;
}

.navLink::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-6px;
  height:2px;
  background: linear-gradient(90deg, var(--red), var(--yellow));
  transform: scaleX(0);
  transform-origin:left;
  transition: transform .25s var(--ease);
}

.navLink:hover{
  color:#fff;
}
.navLink:hover::after{
  transform: scaleX(1);
}

/* Admin accent */
.navLink.admin{
  color: var(--yellow);
  font-weight:600;
}

.navLink.login{
  padding:8px 14px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
}
.navLink.login:hover{
  background: rgba(255,255,255,.06);
}
.coursePage{
  display:grid;
  gap:18px;
}

.courseHead{
  padding: 18px;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(123,30,30,.18), rgba(0,0,0,.9));
  border: 1px solid rgba(255,255,255,.06);
  box-shadow: 0 14px 34px rgba(0,0,0,.35);
  animation: heroIn .7s var(--ease) both;
}

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

.badgeLang{
  font-size:12px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.35);
  color: var(--yellow);
  letter-spacing:.08em;
}

.dot{ color: rgba(255,255,255,.25); }

.courseTitle{
  margin: 10px 0 0;
  font-size: 30px;
  letter-spacing: -.02em;
}

.courseActions{
  margin-top: 14px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

/* Video card */
.videoCard{
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.06);
  background: linear-gradient(180deg, #151515, #101010);
  overflow:hidden;
  box-shadow: 0 18px 44px rgba(0,0,0,.45);
  animation: cardIn .6s var(--ease) both;
}

.videoFrame{
  position:relative;
  width:100%;
  aspect-ratio: 16/9;
  background:#0c0c0c;
}

.videoFrame iframe{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  border:0;
}

.videoFallback{
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  gap:10px;
  padding: 18px;
  text-align:center;
}

.videoFallbackIcon{
  width:54px;
  height:54px;
  border-radius: 999px;
  display:grid;
  place-items:center;
  border: 1px solid rgba(255,255,255,.14);
  color: var(--yellow);
  background: rgba(0,0,0,.35);
}

.videoHint{
  padding: 12px 14px;
  border-top: 1px solid rgba(255,255,255,.06);
  color: rgba(255,255,255,.7);
}

.courseBody{
  padding: 8px 2px 0;
}

.tagsRow{
  margin-top: 10px;
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  align-items:baseline;
}

.tags{
  color: rgba(255,255,255,.85);
}

/* Petite animation de carte */
@keyframes cardIn{
  from{ opacity:0; transform: translateY(10px); }
  to{ opacity:1; transform:none; }
}

/* Liens dans texte */
.link{
  color: var(--yellow);
  text-decoration: underline;
  text-decoration-color: rgba(242,212,111,.45);
  text-underline-offset: 3px;
}
.link:hover{ text-decoration-color: rgba(242,212,111,.8); }
.pageHead{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:14px;
  margin: 6px 0 14px;
}

.pageTitle{
  margin:0;
  font-size:26px;
  letter-spacing:-.02em;
}

.pageSub{
  margin:6px 0 0;
}

/* Filter bar */
.filterBar{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  padding:14px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.06);
  background: linear-gradient(180deg, rgba(20,20,23,.9), rgba(12,12,12,.9));
  box-shadow: 0 14px 34px rgba(0,0,0,.28);
}

.filterGroup{
  display:flex;
  flex-direction:column;
  gap:6px;
  min-width: 180px;
}

.filterGroup.grow{
  flex:1;
  min-width: 240px;
}

.label{
  font-size:12px;
  color: rgba(255,255,255,.65);
}

.select, .input{
  height: 40px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.28);
  color: var(--text);
  padding: 0 12px;
  outline: none;
  transition: border-color .2s ease, transform .2s var(--ease);
}

.select:focus, .input:focus{
  border-color: rgba(242,212,111,.55);
}

.filterActions{
  display:flex;
  align-items:flex-end;
  gap:10px;
  margin-left:auto;
}

/* Results */
.results{ margin-top: 14px; }

.empty{
  color: var(--muted);
  padding: 18px 2px;
}
.adminHead{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  align-items:flex-end;
  margin: 6px 0 14px;
}

.adminHeadActions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

/* Card form */
.formCard{
  margin-top: 14px;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.06);
  background: linear-gradient(180deg, rgba(20,20,23,.9), rgba(12,12,12,.9));
  box-shadow: 0 18px 44px rgba(0,0,0,.35);
  animation: cardIn .55s var(--ease) both;
}

.formGrid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap:12px;
}

.field{ display:flex; flex-direction:column; gap:6px; }
.span2{ grid-column: 1 / -1; }

.select, .textarea{
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.28);
  color: var(--text);
  padding: 10px 12px;
  outline:none;
  transition: border-color .2s ease;
}

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

.select:focus, .textarea:focus{
  border-color: rgba(242,212,111,.55);
}

.help{
  margin-top: 2px;
  color: rgba(255,255,255,.65);
}

/* Switch */
.switch{
  display:flex;
  align-items:center;
  gap:10px;
  user-select:none;
  margin-top: 4px;
}

.switch input{
  position:absolute;
  opacity:0;
  pointer-events:none;
}

.switchUi{
  width:44px;
  height:26px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.08);
  position:relative;
  transition: background .2s ease, border-color .2s ease;
}

.switchUi::after{
  content:"";
  position:absolute;
  top:3px;
  left:3px;
  width:20px;
  height:20px;
  border-radius: 999px;
  background: rgba(255,255,255,.85);
  transition: transform .22s var(--ease);
}

.switch input:checked + .switchUi{
  background: rgba(123,30,30,.45);
  border-color: rgba(123,30,30,.6);
}

.switch input:checked + .switchUi::after{
  transform: translateX(18px);
}

.switchText{
  font-size:14px;
  color: rgba(255,255,255,.88);
}

/* Actions */
.formActions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,.06);
}

@media (max-width: 820px){
  .formGrid{ grid-template-columns: 1fr; }
  .span2{ grid-column:auto; }
}