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

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

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

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideOutRight {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(40px); }
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    50% { transform: translateX(6px); }
    75% { transform: translateX(-4px); }
}

@keyframes floatShape {
    0%, 100% { transform: translate(0, 0) rotate(0deg) scale(1); }
    25% { transform: translate(30px, -50px) rotate(5deg) scale(1.05); }
    50% { transform: translate(-20px, 30px) rotate(-3deg) scale(0.95); }
    75% { transform: translate(40px, 20px) rotate(7deg) scale(1.02); }
}

@keyframes pulse-glow {
    0%, 100% { filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.3)); }
    50% { filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.6)); }
}

@keyframes countUp {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* === Loading Skeleton === */
.skeleton {
    background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 14px;
    margin-bottom: 8px;
    width: 80%;
}

.skeleton-text.short { width: 40%; }
.skeleton-text.full { width: 100%; }
.skeleton-circle { width: 40px; height: 40px; border-radius: 50%; }
.skeleton-rect { height: 100px; width: 100%; }

/* === Staggered animations === */
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }
.stagger-5 { animation-delay: 0.25s; }

/* === Page transition === */
.page-enter {
    animation: fadeIn 0.3s var(--ease-smooth), slideUp 0.3s var(--ease-smooth);
}

/* === Hover lift effect === */
.hover-lift {
    transition: transform var(--duration-normal) var(--ease-smooth),
                box-shadow var(--duration-normal) var(--ease-smooth);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* === Ripple effect === */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform 0.5s, opacity 0.5s;
}

.ripple:active::after {
    transform: scale(0, 0);
    opacity: 0.3;
    transition: 0s;
}