/* ============================================
   ANIMATIONS & TRANSITIONS
   ============================================ */

/* Fade In Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

.fade-in-delay-1 {
    animation-delay: 0.1s;
    opacity: 0;
}

.fade-in-delay-2 {
    animation-delay: 0.2s;
    opacity: 0;
}

.fade-in-delay-3 {
    animation-delay: 0.3s;
    opacity: 0;
}

.fade-in-delay-4 {
    animation-delay: 0.4s;
    opacity: 0;
}

/* Slide In Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out forwards;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out forwards;
}

/* Scale Animation */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.scale-in {
    animation: scaleIn 0.4s ease-out forwards;
}

/* Pulse Animation */
@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* Gradient Animation */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.gradient-animate {
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
}

/* Float Animation */
@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.float {
    animation: float 3s ease-in-out infinite;
}

/* Shimmer Effect */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }

    100% {
        background-position: 1000px 0;
    }
}

.shimmer {
    background: linear-gradient(90deg,
            var(--bg-secondary) 0%,
            var(--bg-tertiary) 50%,
            var(--bg-secondary) 100%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

/* Rotate Animation */
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.rotate {
    animation: rotate 20s linear infinite;
}

/* Bounce Animation */
@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-15px);
    }
}

.bounce {
    animation: bounce 1s ease-in-out infinite;
}

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

.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

.scroll-reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}

/* ============================================
   HOVER EFFECTS
   ============================================ */

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

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.hover-glow {
    position: relative;
    transition: all var(--transition-base);
}

.hover-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    opacity: 0;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    filter: blur(20px);
    z-index: -1;
    transition: opacity var(--transition-base);
}

.hover-glow:hover::before {
    opacity: 0.6;
}

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

.hover-scale:hover {
    transform: scale(1.05);
}

/* ============================================
   GLASSMORPHISM
   ============================================ */

.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .glass {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================
   PROGRESS INDICATORS
   ============================================ */

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 10px;
    transition: width 0.5s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent);
    animation: shimmer 2s infinite;
}

/* ============================================
   RIPPLE EFFECT
   ============================================ */

.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple:active::after {
    width: 300px;
    height: 300px;
}

/* ============================================
   THEME TRANSITION
   ============================================ */

body,
.navbar,
.card,
.btn,
a,
h1,
h2,
h3,
h4,
h5,
h6,
p {
    transition:
        background-color 0.3s ease,
        color 0.3s ease,
        border-color 0.3s ease,
        box-shadow 0.3s ease;
}

/* ============================================
   LOADING SPINNER
   ============================================ */

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

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ============================================
   TOOLTIP
   ============================================ */

.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%) scale(0);
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    transition: all var(--transition-fast);
    pointer-events: none;
}

.tooltip::after {
    content: '';
    position: absolute;
    bottom: 115%;
    left: 50%;
    transform: translateX(-50%) scale(0);
    border: 5px solid transparent;
    border-top-color: var(--text-primary);
    opacity: 0;
    transition: all var(--transition-fast);
}

.tooltip:hover::before,
.tooltip:hover::after {
    transform: translateX(-50%) scale(1);
    opacity: 1;
}