/* Portfolio Mathéo Zeller - Styles CSS */

/* Performance optimizations */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* GPU acceleration for animations */
.animate-fade-up,
.animate-float,
.card-hover,
.btn-shine {
    will-change: transform;
    transform: translateZ(0);
}

/* Enhanced gradient background - Dark Theme */
.hero-bg {
    background:
        radial-gradient(circle at 20% 20%, rgba(6, 182, 212, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(147, 51, 234, 0.2) 0%, transparent 50%),
        linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    position: relative;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Ccircle cx='20' cy='20' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

/* Glass morphism effects */
.glass {
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Enhanced card hover effects */
.card-hover {
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    position: relative;
}

.card-hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 1rem;
    padding: 2px;
    background: linear-gradient(135deg, transparent, rgba(59, 130, 246, 0.3), transparent);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: xor;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.card-hover:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.1),
        0 10px 25px rgba(59, 130, 246, 0.1);
}

.card-hover:hover::before {
    opacity: 1;
}

/* Enhanced button effects */
.btn-shine {
    position: relative;
    overflow: hidden;
    background-size: 200% 200%;
    transition: all 0.3s ease;
}

.btn-shine::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}

.btn-shine:hover::before {
    left: 100%;
}

.btn-shine:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Floating animation with rotation */
@keyframes float-rotate {
    0% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-8px) rotate(2deg); }
    66% { transform: translateY(-4px) rotate(-2deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

.float-rotate {
    animation: float-rotate 6s ease-in-out infinite;
}

/* ========================================
   SCROLL ANIMATIONS
   ======================================== */

/* État initial - éléments cachés */
.scroll-hidden {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* État visible - éléments révélés */
.scroll-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Animation fade-in depuis la gauche */
.scroll-fade-left {
    opacity: 0;
    transform: translateX(-80px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-fade-left.scroll-visible {
    opacity: 1;
    transform: translateX(0);
}

/* Animation fade-in depuis la droite */
.scroll-fade-right {
    opacity: 0;
    transform: translateX(80px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-fade-right.scroll-visible {
    opacity: 1;
    transform: translateX(0);
}

/* Animation scale-up */
.scroll-scale {
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.8s cubic-bezier(0.34, 1.56, 0.64, 1),
                transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

/* Animation rotation + fade */
.scroll-rotate {
    opacity: 0;
    transform: rotate(-5deg) scale(0.9);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-rotate.scroll-visible {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* Délais pour effet stagger */
.scroll-delay-1 { transition-delay: 0.1s; }
.scroll-delay-2 { transition-delay: 0.2s; }
.scroll-delay-3 { transition-delay: 0.3s; }
.scroll-delay-4 { transition-delay: 0.4s; }
.scroll-delay-5 { transition-delay: 0.5s; }

/* Animation delays */
.anim-delay-1 { animation-delay: 1s; }
.anim-delay-1-5 { animation-delay: 1.5s; }
.anim-delay-2 { animation-delay: 2s; }
.anim-delay-2-5 { animation-delay: 2.5s; }
.anim-delay-3 { animation-delay: 3s; }
.anim-delay-0-2 { animation-delay: 0.2s; }
.anim-delay-0-3 { animation-delay: 0.3s; }
.anim-delay-0-4 { animation-delay: 0.4s; }

/* Animation blur-in */
.scroll-blur {
    opacity: 0;
    filter: blur(10px);
    transform: translateY(30px);
    transition: opacity 0.8s ease,
                filter 0.8s ease,
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-blur.scroll-visible {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-bg::before {
        background-size: 30px 30px;
    }

    .card-hover:hover {
        transform: translateY(-8px) scale(1.01);
    }
}

/* Performance: Optimize heavy effects on low-end devices */
@media (max-width: 768px) and (prefers-reduced-motion: no-preference) {
    .glass {
        backdrop-filter: blur(8px);
    }
}