:root{
  --bg:#0b0720;
  --card:#140e33;
  --card-soft:#191245;
  --muted:#cbbcf8;
  --text:#f6f3ff;
  --brand:#a78bfa; /* violet */
  --brand-strong:#8b5cf6;
  --accent:#ffd166;
  --ok:#22c55e;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --radius:18px;
  --container:1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:radial-gradient(1200px 600px at 20% 0%, #1a1542 0%, var(--bg) 60%) fixed;color:var(--text);line-height:1.6}
img{max-width:100%;height:auto;display:block}

.container{max-width:var(--container);margin:0 auto;padding:0 20px}

.site-header{position:sticky;top:0;z-index:50;background:rgba(11,7,32,.65);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.06)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.brand{font-weight:800;letter-spacing:.08em;text-decoration:none;color:var(--text)}
.logo {
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: 2px;
  background: linear-gradient(90deg, #a78bfa, #ec4899, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-transform: uppercase;
  text-shadow: 0 0 12px rgba(167, 139, 250, 0.7),
               0 0 28px rgba(236, 72, 153, 0.5),
               0 0 40px rgba(96, 165, 250, 0.4);
  transition: transform 0.3s ease, text-shadow 0.3s ease;
}
.logo:hover {
  transform: scale(1.05);
  text-shadow: 0 0 16px rgba(167, 139, 250, 0.9),
               0 0 36px rgba(236, 72, 153, 0.7),
               0 0 50px rgba(96, 165, 250, 0.6);
}

.nav a{color:var(--muted);text-decoration:none;margin:0 14px}
.nav-toggle{display:none;background:none;border:none;font-size:24px;color:var(--text)}

@media (max-width:860px){
  .nav{display:none;position:absolute;left:0;right:0;top:64px;background:#110a30;padding:12px 20px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav.open{display:block}
  .nav a{display:block;padding:10px 0}
  .nav-toggle{display:block}
}

.hero{position:relative;padding:72px 0 40px}
.hero-wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center}
.kicker{color:var(--accent);text-transform:uppercase;letter-spacing:.08em;font-weight:700;margin:0 0 8px}
.hero h1{font-size:38px;line-height:1.15;margin:0 0 14px}
.hero .sub{color:var(--muted);max-width:60ch;margin:0 0 18px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.trust{display:flex;gap:14px;flex-wrap:wrap;color:#ddd;margin:20px 0 0;padding:0;list-style:none;font-size:14px}
.hero-art{filter:drop-shadow(0 30px 40px rgba(0,0,0,.4));border-radius:20px;overflow:hidden}
.glow{position:absolute;inset:auto 0 -180px 0;height:240px;background:radial-gradient(600px 160px at 60% 0,#5b21b6 0%, rgba(91,33,182,0) 70%);opacity:.6;pointer-events:none}

@media (max-width:960px){
  .hero-wrap{grid-template-columns:1fr}
}

.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border-radius:999px;border:1px solid rgba(255,255,255,.16);text-decoration:none;color:var(--text);box-shadow:var(--shadow);cursor:pointer;transition:transform 0.2s ease}
.btn.primary{background:linear-gradient(90deg, var(--brand-strong), var(--brand))}
.btn:hover{transform:scale(1.05)}

.section{padding:64px 0}
.section.alt{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.0))}
.section h2{font-size:30px;margin:0 0 24px}

.grid{display:grid;gap:20px}
.features-grid{grid-template-columns:repeat(3,1fr)}
@media (max-width:960px){.features-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.features-grid{grid-template-columns:1fr}}

.card{background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:18px 18px 16px;box-shadow:var(--shadow);transition: transform 0.3s ease, box-shadow 0.3s ease;}
.card:hover{transform:translateY(-6px);box-shadow:0 8px 20px rgba(0,0,0,.4)}
.card.soft{background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02))}
.icon{font-size:22px;margin-bottom:6px}
.card h3{margin:4px 0 8px;font-size:18px}
.card p{margin:0;color:var(--muted)}

.daily-grid{grid-template-columns:repeat(4,1fr)}
@media (max-width:960px){.daily-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.daily-grid{grid-template-columns:1fr}}

.screens-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.screens-grid figure{margin:0;background:#100b2b;border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.screens-grid figcaption{text-align:center;padding:8px 6px;color:var(--muted);font-size:13px}
@media (max-width:1120px){.screens-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.screens-grid{grid-template-columns:repeat(2,1fr)}}

.check{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.check li{position:relative;padding-left:26px;color:var(--muted)}
.check li::before{content:"✓";position:absolute;left:0;top:0;color:var(--ok)}

.muted{color:var(--muted)}

.site-footer{border-top:1px solid rgba(255,255,255,.06);padding:28px 0 12px;background:rgba(11,7,32,.6);backdrop-filter:blur(6px);text-align:center}
.legal{opacity:.7;font-size:13px;margin:16px 0 0}

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

/* Tablettes (≤ 768px) */
@media (max-width: 768px) {
  body {font-size: 15px;}
  .hero h1 {font-size: 28px; line-height: 1.2;}
  .hero .sub {font-size: 15px;}
  .cta-row {flex-direction: column; align-items: center;}
  .btn {width: 100%; justify-content: center;}
  .screens-grid {grid-template-columns: repeat(2, 1fr);}
  .check {grid-template-columns: 1fr;}
}

/* Mobiles (≤ 480px) */
@media (max-width: 480px) {
  body {font-size: 14px;}
  .hero {padding: 48px 0 28px;}
  .hero h1 {font-size: 22px;}
  .hero .sub {font-size: 14px;}
  .features-grid,
  .daily-grid,
  .screens-grid {grid-template-columns: 1fr !important;}
  .trust {flex-direction: column; align-items: center;}
  .footer-grid {grid-template-columns: 1fr; text-align: center; gap: 12px;}
}