/* Glassmorphism Adaptatif */
.glass-header {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: background 0.5s, border 0.5s;
}

.dark .glass-header {
    background: rgba(10, 10, 10, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Animations scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-100 {
    transition-delay: 100ms;
}

.delay-200 {
    transition-delay: 200ms;
}

/* Dark mode transition smoothness */
* {
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.2s ease;
}