/**
 * Animations & Transitions - Simplified Pixel Style
 */

/* ==================== KEYFRAMES ==================== */

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

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ==================== ANIMATION CLASSES ==================== */

.animate-fadeIn {
    animation: fadeIn 0.1s linear forwards;
}

.animate-fadeOut {
    animation: fadeOut 0.1s linear forwards;
}

.animate-slideDown {
    animation: slideDown 0.1s linear forwards;
}

.animate-slideUp {
    animation: slideUp 0.1s linear forwards;
}

.animate-pulse {
    animation: pulse 1s steps(2) infinite;
}

.animate-spin {
    animation: spin 0.6s linear infinite;
}

/* ==================== TRANSITION UTILITIES ==================== */

.transition-all {
    transition: all var(--transition-normal) var(--ease-default);
}

.transition-colors {
    transition: color var(--transition-fast), 
                background-color var(--transition-fast), 
                border-color var(--transition-fast);
}

.transition-transform {
    transition: transform var(--transition-fast);
}

.transition-opacity {
    transition: opacity var(--transition-fast);
}

.transition-none {
    transition: none !important;
}

/* ==================== DELAY UTILITIES ==================== */

.delay-100 { animation-delay: 50ms; }
.delay-200 { animation-delay: 100ms; }
.delay-300 { animation-delay: 150ms; }
.delay-400 { animation-delay: 200ms; }
.delay-500 { animation-delay: 250ms; }

/* ==================== STAGGER CHILDREN ==================== */

.stagger-children > * {
    opacity: 0;
    animation: slideUp 0.1s linear forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0ms; }
.stagger-children > *:nth-child(2) { animation-delay: 50ms; }
.stagger-children > *:nth-child(3) { animation-delay: 100ms; }
.stagger-children > *:nth-child(4) { animation-delay: 150ms; }
.stagger-children > *:nth-child(5) { animation-delay: 200ms; }
.stagger-children > *:nth-child(6) { animation-delay: 250ms; }
.stagger-children > *:nth-child(7) { animation-delay: 300ms; }
.stagger-children > *:nth-child(8) { animation-delay: 350ms; }

/* ==================== HOVER EFFECTS - PIXEL STYLE ==================== */

.hover-lift {
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.hover-lift:hover {
    transform: translate(2px, 2px);
    box-shadow: none;
}

.hover-scale {
    transition: transform var(--transition-fast);
}

.hover-scale:hover {
    transform: scale(1.02);
}

/* ==================== LOADER ANIMATIONS ==================== */

.loader-dots {
    display: inline-flex;
    gap: 4px;
}

.loader-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary);
    animation: pulse 0.8s steps(2) infinite;
}

.loader-dots span:nth-child(1) {
    animation-delay: 0ms;
}

.loader-dots span:nth-child(2) {
    animation-delay: 160ms;
}

.loader-dots span:nth-child(3) {
    animation-delay: 320ms;
}

.loader-bar {
    width: 100%;
    height: 8px;
    background: var(--border);
    border-radius: 0;
    overflow: hidden;
    border: 2px solid var(--border-dark);
}

.loader-bar::after {
    content: '';
    display: block;
    width: 30%;
    height: 100%;
    background: var(--primary);
    animation: loader-slide 0.8s steps(4) infinite;
}

@keyframes loader-slide {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(400%);
    }
}

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

[data-animate] {
    opacity: 0;
}

[data-animate="fadeInUp"] {
    transform: translateY(10px);
}

[data-animate].animated {
    opacity: 1;
    transform: translate(0);
    transition: opacity 0.1s linear, transform 0.1s linear;
}

/* ==================== MODAL ANIMATIONS ==================== */

.modal-enter .modal {
    opacity: 0;
    transform: scale(0.95);
}

.modal-enter-active .modal {
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.1s linear, transform 0.1s linear;
}

.modal-exit .modal {
    opacity: 1;
    transform: scale(1);
}

.modal-exit-active .modal {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.1s linear, transform 0.1s linear;
}