:root{
  --bg: #07070a;
  --bg2: #0b0c10;

  /* lisibilité (blanc cassé + gris doux) */
  --text: rgba(245,245,245,.92);
  --muted: rgba(245,245,245,.72);

  /* panneaux premium */
  --panel: rgba(255,255,255,.055);
  --panel2: rgba(255,255,255,.08);
  --stroke: rgba(255,255,255,.14);

  --accent: #d94b6a;
  --shadow: 0 18px 60px rgba(0,0,0,.45);
  --radius: 16px;
  --max: 980px;
}

*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}

body{
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  background:
    radial-gradient(1100px 700px at 20% 0%, #171b2d 0%, var(--bg) 58%) fixed,
    linear-gradient(180deg, var(--bg), var(--bg2));
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,h2,h3{
  font-weight: 750;
  letter-spacing: 0.01em;
}

section{
  padding: 56px 16px;
}

.muted{color: var(--muted)}
.colors{color: var(--accent); font-weight: 750;}
.note{color: var(--muted); font-size: 0.98rem;}
.warning{color: var(--muted); font-size: 0.95rem; margin-top: 14px;}
.lead{font-size: 1.06rem; color: var(--text);}

.panel{
  max-width: var(--max);
  margin: 0 auto;
  padding: 26px 18px;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.04));
  border: 1px solid rgba(255,255,255,.10);
  border-radius: calc(var(--radius) + 2px);
  box-shadow: 0 14px 60px rgba(0,0,0,.22);
  backdrop-filter: blur(10px);
}

.panel--center{
  text-align: center;
}

.hero{
  padding-top: 48px;
  text-align: center;
}

.logo-wrapper{
  width:100%;
  display:flex;
  justify-content:center;
  margin-bottom: 18px;
}

.logo{
  width: 118px;
  max-width: 44vw;
  height: auto;
  opacity: .98;
  filter: drop-shadow(0 14px 26px rgba(0,0,0,.55));
}

.hero-content{
  margin-bottom: 22px;
}

.hero-content h1{
  font-size: clamp(2.1rem, 6vw, 3.25rem);
}

.date{
  display:block;
  margin-top: 8px;
  font-size: 1.05rem;
  opacity: .82;
}

.hero-video-wrapper{
  max-width: var(--max);
  margin: 0 auto;
}

.hero-video{
  width:100%;
  border-radius: var(--radius);
  background:#000;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,.10);
}

.gallery{
  max-width: var(--max);
  margin: 0 auto;
}

.section-title{
  margin-bottom: 16px;
}

.section-title h2{
  font-size: clamp(1.55rem, 4.5vw, 2.05rem);
  margin-bottom: 6px;
}

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

.gallery-grid img,
.gallery-grid video{
  width: 100%;
  height: 190px;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.35);
  box-shadow: 0 12px 34px rgba(0,0,0,.25);
}

@media (min-width: 820px){
  .gallery-grid{
    grid-template-columns: repeat(4, 1fr);
  }
  .gallery-grid img,
  .gallery-grid video{
    height: 215px;
  }
}

.description h2{
  font-size: clamp(1.7rem, 5vw, 2.2rem);
  margin-bottom: 14px;
}

.description p{
  margin-bottom: 14px;
}

.description h3{
  margin: 22px 0 12px;
  font-size: 1.12rem;
}

/* Programme : liste élégante, pas “cartes” */
.program{
  list-style:none;
  margin: 10px 0 18px;
  padding: 0;
  border-top: 1px solid rgba(255,255,255,.10);
}

.program li{
  display:flex;
  gap: 10px;
  align-items:flex-start;
  padding: 12px 2px;
  border-bottom: 1px solid rgba(255,255,255,.10);
  color: var(--text);
}

.program .emoji{
  width: 22px;
  display:inline-block;
  opacity: .95;
  transform: translateY(1px);
}

.prices{
  display:flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

.prices div{
  display:flex;
  justify-content:space-between;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(0,0,0,.18);
  border: 1px solid rgba(255,255,255,.10);
}

.prices span{
  font-weight: 850;
}

/* Form */
.participation{
  max-width: var(--max);
  margin: 0 auto;
}

.form{
  margin: 18px auto 0;
  max-width: 460px;
  display:flex;
  flex-direction:column;
  gap: 12px;
  text-align:left;
}

.form input[type="text"],
.form input[type="email"],
.form input[type="tel"]{
  padding: 14px 14px;
  background: rgba(0,0,0,.22);
  border: 1px solid rgba(255,255,255,.14);
  color: var(--text);
  border-radius: 12px;
  outline:none;
}

.form input::placeholder{color: rgba(245,245,245,.55)}

.form input:focus{
  border-color: rgba(217,75,106,.65);
  box-shadow: 0 0 0 4px rgba(217,75,106,.12);
}

.upload{
  display:block;
  padding: 14px;
  border-radius: 12px;
  border: 1px dashed rgba(255,255,255,.22);
  background: rgba(255,255,255,.04);
  cursor:pointer;
  user-select:none;
  color: var(--muted);
}

.upload input{display:none}

.consent{
  display:flex;
  gap: 10px;
  align-items:flex-start;
  color: var(--muted);
  font-size: .92rem;
}

.btn-primary{
  padding: 14px 14px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(217,75,106,1), rgba(235,120,145,1));
  border: 0;
  color: white;
  font-weight: 850;
  cursor:pointer;
  box-shadow: 0 18px 60px rgba(0,0,0,.35);
}

.btn-primary:hover{opacity:.95}

.toast{
  min-height: 18px;
  color: var(--muted);
  font-size: .95rem;
}

.or{
  margin: 24px 0 16px;
  opacity: .58;
}

.btn-outline{
  display:inline-block;
  padding: 14px 22px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.70);
  color: var(--text);
  text-decoration:none;
  font-weight: 850;
  background: rgba(0,0,0,.16);
}

.btn-outline:hover{
  background: rgba(255,255,255,.08);
}

.thanks{
  min-height: 100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 24px 16px;
}

.thanks-panel{
  width: min(720px, 100%);
  padding: 34px 18px;
}

.thanks-title{
  font-size: clamp(1.8rem, 6vw, 2.4rem);
  margin-top: 10px;
  margin-bottom: 10px;
}

.thanks-text{
  margin-bottom: 18px;
}

.thanks-actions{
  display:flex;
  gap: 12px;
  justify-content:center;
  flex-wrap: wrap;
  margin-top: 14px;
}