/* =========================================
   Performance & Animations Enhancements
   ========================================= */

/* Smooth Scrolling & Custom Scrollbar */
html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--pink) var(--navy);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--navy);
}

::-webkit-scrollbar-thumb {
    background: var(--pink);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--pink-hover);
}

/* Preloader */
#preloader {
    position: fixed;
    inset: 0;
    background: var(--navy);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 17, 106, 0.3);
    border-radius: 50%;
    border-top-color: var(--pink);
    animation: spin 1s ease-in-out infinite;
}

.loader-text {
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--white);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

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

.reveal-entry.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.95);
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal-scale.visible {
    opacity: 1;
    transform: scale(1);
}

.stagger-delay-1 { transition-delay: 0.1s; }
.stagger-delay-2 { transition-delay: 0.2s; }
.stagger-delay-3 { transition-delay: 0.3s; }

/* Sticky Header Enhancement */
.site-header {
    transition: background 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
    background: rgba(8, 10, 18, 0.95);
    padding-top: 0;
    padding-bottom: 0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}