/* ========================================
   ANIMATIONS CSS
   ======================================== */

/* Fade In */
.animate-fade-in { animation: fadeIn 0.8s ease forwards; }
.animate-fade-in-delay { opacity: 0; animation: fadeIn 0.8s ease forwards; animation-delay: 0.3s; }
.animate-fade-in-delay-2 { opacity: 0; animation: fadeIn 0.8s ease forwards; animation-delay: 0.5s; }
.animate-fade-in-delay-3 { opacity: 0; animation: fadeIn 0.8s ease forwards; animation-delay: 0.7s; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Slide Up */
.animate-slide-up { opacity: 0; animation: slideUp 0.8s ease forwards; }
.animate-slide-up-delay { opacity: 0; animation: slideUp 0.8s ease forwards; animation-delay: 0.2s; }

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Float Animation */
.animate-float { animation: floatElement 6s ease-in-out infinite; }

@keyframes floatElement {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* Scale In */
.animate-scale-in { animation: scaleIn 0.5s ease forwards; }

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

/* Slide from Left/Right */
.animate-slide-left { opacity: 0; animation: slideLeft 0.8s ease forwards; }
.animate-slide-right { opacity: 0; animation: slideRight 0.8s ease forwards; }

@keyframes slideLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideRight {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Bounce */
.animate-bounce { animation: bounce 2s ease infinite; }

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* Pulse Glow */
.animate-pulse-glow { animation: pulseGlow 2s ease-in-out infinite; }

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.3); }
    50% { box-shadow: 0 0 40px rgba(99, 102, 241, 0.6); }
}

/* Rotate */
.animate-rotate { animation: rotate 20s linear infinite; }

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Gradient Animation */
.animate-gradient { background-size: 200% 200%; animation: gradientShift 5s ease infinite; }

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Intersection Observer Animation Classes */
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s ease; }
.reveal.active { opacity: 1; transform: translateY(0); }

.reveal-left { opacity: 0; transform: translateX(-50px); transition: all 0.8s ease; }
.reveal-left.active { opacity: 1; transform: translateX(0); }

.reveal-right { opacity: 0; transform: translateX(50px); transition: all 0.8s ease; }
.reveal-right.active { opacity: 1; transform: translateX(0); }

.reveal-scale { opacity: 0; transform: scale(0.8); transition: all 0.8s ease; }
.reveal-scale.active { opacity: 1; transform: scale(1); }

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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