/* ========================================
   CO-VER ANIMATIONS
   Keyframes, Scroll Effects, Transitions
   ======================================== */

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

/* Fade In */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Down */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Left */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Fade In Right */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Slide Up */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide Down */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Pulse */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Subtle Pulse */
@keyframes subtlePulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

/* Float */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Spin */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Count Up (for stat numbers) */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

.animate-fade-in {
    animation: fadeIn var(--transition-slow) ease-out forwards;
}

.animate-fade-in-up {
    animation: fadeInUp var(--transition-slow) ease-out forwards;
}

.animate-fade-in-down {
    animation: fadeInDown var(--transition-slow) ease-out forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft var(--transition-slow) ease-out forwards;
}

.animate-fade-in-right {
    animation: fadeInRight var(--transition-slow) ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn var(--transition-slow) ease-out forwards;
}

.animate-slide-up {
    animation: slideUp 0.6s ease-out forwards;
}

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

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

/* ========================================
   SCROLL-TRIGGERED ANIMATIONS
   ======================================== */

/* Hidden state for scroll animations */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.scroll-animate.in-view {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered children animations */
.scroll-animate-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.scroll-animate-stagger.in-view > *:nth-child(1) { transition-delay: 0ms; }
.scroll-animate-stagger.in-view > *:nth-child(2) { transition-delay: 100ms; }
.scroll-animate-stagger.in-view > *:nth-child(3) { transition-delay: 200ms; }
.scroll-animate-stagger.in-view > *:nth-child(4) { transition-delay: 300ms; }
.scroll-animate-stagger.in-view > *:nth-child(5) { transition-delay: 400ms; }
.scroll-animate-stagger.in-view > *:nth-child(6) { transition-delay: 500ms; }

.scroll-animate-stagger.in-view > * {
    opacity: 1;
    transform: translateY(0);
}

/* Different animation directions */
.scroll-animate-left {
    opacity: 0;
    transform: translateX(-30px);
}

.scroll-animate-left.in-view {
    opacity: 1;
    transform: translateX(0);
}

.scroll-animate-right {
    opacity: 0;
    transform: translateX(30px);
}

.scroll-animate-right.in-view {
    opacity: 1;
    transform: translateX(0);
}

.scroll-animate-scale {
    opacity: 0;
    transform: scale(0.95);
}

.scroll-animate-scale.in-view {
    opacity: 1;
    transform: scale(1);
}

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

.hero-animate-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-animate-card {
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-animate-stats {
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* ========================================
   HOVER TRANSITIONS
   ======================================== */

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

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

.hover-grow {
    transition: transform var(--transition-base);
}

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

.hover-glow {
    transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
    box-shadow: var(--shadow-accent);
}

/* ========================================
   LOADING STATES
   ======================================== */

.loading-shimmer {
    background: linear-gradient(
        90deg,
        var(--color-bg-light) 25%,
        var(--color-bg-white) 50%,
        var(--color-bg-light) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ========================================
   SUCCESS MESSAGE
   ======================================== */

.success-message {
    display: none;
    animation: slideDown 0.5s ease-out;
}

.success-message.show {
    display: block;
}

/* ========================================
   REDUCED MOTION
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .scroll-animate,
    .scroll-animate-left,
    .scroll-animate-right,
    .scroll-animate-scale {
        opacity: 1;
        transform: none;
    }

    .scroll-animate-stagger > * {
        opacity: 1;
        transform: none;
    }
}