/* ── 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);-webkit-text-size-adjust:100%;font-size:16px;}
body{font-family:'Inter',sans-serif;min-height:100vh;}
img,video,svg,iframe{max-width:100%;height:auto;display:block;}

/* ── 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-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  width:50px;
  height:50px;
  padding:0;
  border:none;
  background:#ffffff;
  border-radius:50%;
  box-shadow:0 18px 50px rgba(15,23,42,.14);
  margin-left:16px;
  cursor:pointer;
  align-self:center;
  transition:transform .25s ease,box-shadow .25s ease;
}
.nav-toggle:hover{transform:scale(1.03);box-shadow:0 20px 56px rgba(15,23,42,.18);}
.nav-toggle span{
  display:block;
  width:24px;
  height:3px;
  margin:3px 0;
  background:#0f172a;
  border-radius:999px;
  transition:transform .25s ease,opacity .25s ease,background .25s ease;
}
.nav-toggle[aria-expanded='true'] span:nth-child(1){transform:translateY(9px) rotate(45deg);}
.nav-toggle[aria-expanded='true'] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded='true'] span:nth-child(3){transform:translateY(-9px) rotate(-45deg);}
.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;}

@media(max-width:900px){
  nav{
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    padding:12px 20px;
    min-height:auto;
  }
  .nav-toggle{display:inline-flex;}
  .nav-pill{
    position:absolute;
    top:100%;
    right:16px;
    width:min(340px,calc(100% - 32px));
    overflow:hidden;
    max-height:0;
    opacity:0;
    pointer-events:none;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.14);
    border-radius:32px;
    margin-top:12px;
    flex-direction:column;
    transition:transform .28s ease,opacity .25s ease,max-height .3s ease;
    transform:translateY(-16px);
    backdrop-filter:blur(28px);
    box-shadow:0 32px 80px rgba(0,0,0,.22);
    z-index:99;
  }
  .nav-pill.open{
    max-height:520px;
    opacity:1;
    pointer-events:auto;
    transform:translateY(0);
  }
  .nav-links{
    display:flex;
    flex-direction:column;
    gap:16px;
    padding:24px 22px 14px;
    width:100%;
  }
  .nav-links li{width:100%;}
  .nav-links a{
    display:block;
    width:100%;
    padding:14px 18px;
    border-radius:22px;
    font-size:16px;
    color:var(--white);
    background:rgba(255,255,255,.06);
    transition:background .2s,color .2s;
  }
  .nav-links a:hover{background:rgba(255,255,255,.14);}
  .nav-links a.active{
    color:var(--cyan);
    background:rgba(96,165,250,.12);
  }
  .nav-cta{
    display:inline-flex;
    justify-content:center;
    align-items:center;
    width:calc(100% - 40px);
    margin:0 20px 18px;
    padding:16px 20px;
    order:0;
    border-radius:22px;
    font-size:15px;
  }
}
@media(max-width:640px){
  nav{padding:12px 16px;}
  .nav-pill{right:12px;width:min(320px,calc(100% - 24px));margin-top:10px;}
  .nav-links{gap:14px;padding:20px 18px 12px;}
  .nav-links a{padding:12px 16px;font-size:15px;}
  .nav-cta{width:calc(100% - 36px);}
}

/* ── 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%)}
}