/* ── RESET & BASE ── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --cyan:#60a5fa;
  --cyan-dim:rgba(96,165,250,.12);
  --accent:#6366f1;
  --white:#f0f6ff;
  --muted:rgba(200,220,255,.5);
  --bg:#020817;
  --surface:rgba(255,255,255,.03);
  --border:rgba(255,255,255,.07);
}
html,body{width:100%;overflow-x:hidden;background:var(--bg);color:var(--white)}
body{font-family:'Inter',sans-serif}

/* ── GRAIN ── */
.grain{
  position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.25;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='f'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23f)' opacity='0.07'/%3E%3C/svg%3E");
  background-size:160px;
}

/* ── BG-LAYER (pages sans vidéo) ── */
.bg-layer{
  position:fixed;inset:0;z-index:0;
  background:
    radial-gradient(ellipse 90% 70% at 10% 20%, rgba(96,165,250,.07) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 90% 80%, rgba(99,102,241,.06) 0%, transparent 50%),
    #020817;
}

/* ── NAV ── */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;justify-content:space-between;
  align-items:center;padding:0 36px;height:76px;
  transition:background .4s,border-color .4s;
  border-bottom:1px solid transparent;
}
nav.stuck{
  background:rgba(2,8,23,.85);
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  border-bottom-color:rgba(255,255,255,.06);
}
.nav-left{
  display:flex;align-items:center;gap:12px;
  text-decoration:none;
}
.nav-brand{
  font-family:'Outfit',sans-serif;font-weight:700;font-size:15px;
  color:var(--white);letter-spacing:-.01em;
}
.logo{
  display:flex;align-items:center;justify-content:center;
  width:54px;height:54px;border-radius:12px;
  background:rgba(2,8,23,.6);
  border:1px solid rgba(96,165,250,.7);
  box-shadow:0 0 10px rgba(96,165,250,.5),0 0 22px rgba(96,165,250,.2),inset 0 0 8px rgba(96,165,250,.08);
  transition:opacity .25s ease;flex-shrink:0;
  position:relative;transform-origin:top center;
  animation:pendulum 4s ease-in-out infinite,neon-pulse 2.5s ease-in-out infinite;
}
.logo:hover{opacity:.75}
.logo::before{
  content:'';
  position:absolute;
  bottom:100%;
  left:50%;
  transform:translateX(-50%);
  width:2px;
  height:14px;
  background:linear-gradient(to bottom,rgba(96,165,250,.05),rgba(96,165,250,.8));
  border-radius:1px;
}
.logo-img{height:44px;width:44px;display:block;object-fit:contain;}
.nav-pill{
  display:flex;align-items:center;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);
  border-radius:100px;padding:5px;backdrop-filter:blur(12px);
}
.nav-links{display:flex;align-items:center;list-style:none}
.nav-links a{
  color:rgba(200,220,255,.55);font-size:14px;font-weight:500;
  text-decoration:none;padding:9px 20px;border-radius:100px;
  letter-spacing:.01em;transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:var(--white);background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--white);background:rgba(96,165,250,.12)}
.nav-cta{
  display:inline-flex;align-items:center;gap:10px;
  text-decoration:none;border-radius:100px;
  padding:7px 7px 7px 20px;
  font-size:14px;font-weight:700;background:var(--cyan);color:#020c14;
  box-shadow:0 0 20px rgba(96,165,250,.3);transition:box-shadow .2s,transform .2s;
  white-space:nowrap;
}
.nav-cta:hover{box-shadow:0 0 36px rgba(96,165,250,.5);transform:translateY(-1px)}
.cta-arrow{
  width:34px;height:34px;border-radius:50%;
  background:rgba(2,8,23,.28);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.cta-arrow svg{width:15px;height:15px;stroke:#020c14;fill:none;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;}

/* ── BUTTONS (communs) ── */
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;border-radius:100px;
  background:var(--cyan);color:#020c14;
  font-size:14px;font-weight:700;text-decoration:none;letter-spacing:.03em;
  box-shadow:0 0 28px rgba(96,165,250,.35);
  transition:transform .2s,box-shadow .2s;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 48px rgba(96,165,250,.5)}
.btn-primary svg{width:16px;height:16px;transition:transform .2s}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;border-radius:100px;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.04);
  color:rgba(200,220,255,.65);font-size:14px;font-weight:500;text-decoration:none;
  transition:all .2s;
}
.btn-ghost:hover{border-color:rgba(255,255,255,.28);color:var(--white);transform:translateY(-2px)}

/* ── KEYFRAMES ── */
@keyframes pendulum{
  0%,100%{transform:rotate(-3deg)}
  50%{transform:rotate(3deg)}
}
@keyframes neon-pulse{
  0%,100%{box-shadow:0 0 10px rgba(96,165,250,.5),0 0 22px rgba(96,165,250,.2),inset 0 0 8px rgba(96,165,250,.08)}
  50%{box-shadow:0 0 18px rgba(96,165,250,.75),0 0 36px rgba(96,165,250,.35),0 0 50px rgba(96,165,250,.1),inset 0 0 12px rgba(96,165,250,.12)}
}
@keyframes up{
  from{opacity:0;transform:translateY(24px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes line-up{
  from{opacity:0;transform:translateY(105%)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.2}}
@keyframes drip{
  0%{top:-100%}100%{top:210%}
}
@keyframes marquee{
  from{transform:translateX(0)}
  to{transform:translateX(-50%)}
}