*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bleu:#1a3a8f;--violet:#764ba2;--cyan:#09c;--gradient:linear-gradient(135deg,#1a3a8f,#764ba2 50%,#09c);--gradient-soft:linear-gradient(135deg,#667eea,#764ba2);--blanc:#fff;--gris-clair:#f8faff;--gris-texte:#557;--noir:#0f0f23;--font:"Inter",system-ui,sans-serif}html{scroll-behavior:smooth}body{font-family:var(--font);color:var(--noir);background:var(--blanc);-webkit-font-smoothing:antialiased;overflow-x:hidden}.container{max-width:1100px;margin:0 auto;padding:0 1.5rem}.gradient-text{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--gradient-soft);color:#fff;font-weight:700;font-size:1rem;padding:.85rem 2rem;border-radius:50px;border:none;cursor:pointer;text-decoration:none;box-shadow:0 4px 24px rgba(102,126,234,.4);transition:transform .2s,box-shadow .2s}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(102,126,234,.5)}.btn-secondary{display:inline-flex;align-items:center;gap:8px;background:transparent;color:#fff;font-weight:600;font-size:.95rem;padding:.75rem 1.5rem;border-radius:50px;border:2px solid hsla(0,0%,100%,.4);cursor:pointer;text-decoration:none;transition:background .2s,border-color .2s}.btn-secondary:hover{background:hsla(0,0%,100%,.1);border-color:hsla(0,0%,100%,.7)}section{padding:5rem 0}@media (max-width:768px){section{padding:3.5rem 0}.container{padding:0 1.25rem}}