/* ============================================
   Aurora Animations CSS
   Keyframes, transitions, decorations
   ============================================ */

/* ——— Keyframes ——— */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

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

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

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

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

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

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

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

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

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

/* ——— Animation Classes ——— */
.animate-fade-in { animation: fadeIn 0.6s ease forwards; }
.animate-fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.animate-fade-in-down { animation: fadeInDown 0.6s ease forwards; }
.animate-fade-in-left { animation: fadeInLeft 0.6s ease forwards; }
.animate-fade-in-right { animation: fadeInRight 0.6s ease forwards; }
.animate-scale-in { animation: scaleIn 0.5s ease forwards; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-bounce { animation: bounce 2s ease-in-out infinite; }
.animate-float { animation: float 3s ease-in-out infinite; }

/* Delay utilities */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }

/* Scroll reveal - initially hidden, revealed by JS */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-scale {
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-scale.revealed {
    opacity: 1;
    transform: scale(1);
}

/* Stagger children */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.revealed > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(6) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(7) { transition-delay: 0.6s; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(8) { transition-delay: 0.7s; opacity: 1; transform: translateY(0); }

/* ——— Decorative Elements ——— */

/* Dashed Lines */
.dashed-line {
    position: relative;
}

.dashed-line--horizontal {
    width: 100%;
    height: 1px;
    background: repeating-linear-gradient(
        to right,
        var(--aurora-palette-divider) 0px,
        var(--aurora-palette-divider) 8px,
        transparent 8px,
        transparent 14px
    );
}

.dashed-line--vertical {
    width: 1px;
    height: 100%;
    background: repeating-linear-gradient(
        to bottom,
        var(--aurora-palette-divider) 0px,
        var(--aurora-palette-divider) 8px,
        transparent 8px,
        transparent 14px
    );
}

/* Striped Background */
.striped-bg {
    position: relative;
}

.striped-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 63px,
        var(--aurora-palette-divider) 63px,
        var(--aurora-palette-divider) 64px
    );
    pointer-events: none;
    opacity: 0.3;
}

/* Corner Dots */
.corner-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--aurora-palette-divider);
    position: absolute;
    z-index: 20;
}

.corner-dot--tl { top: -3px; left: -3px; }
.corner-dot--tr { top: -3px; right: -3px; }
.corner-dot--bl { bottom: -3px; left: -3px; }
.corner-dot--br { bottom: -3px; right: -3px; }

/* Gradient Overlays */
.gradient-bottom {
    position: relative;
}

.gradient-bottom::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to bottom, transparent, var(--aurora-palette-background-default));
    pointer-events: none;
}

/* Shimmer Loading / Skeleton */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--aurora-palette-background-neutral) 25%,
        var(--aurora-palette-grey-300) 50%,
        var(--aurora-palette-background-neutral) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: var(--aurora-shape-borderRadius-sm);
}

.skeleton-text {
    height: 14px;
    margin-bottom: 8px;
    border-radius: 4px;
}

.skeleton-text:last-child {
    width: 80%;
}

.skeleton-circle {
    border-radius: 50%;
}

.skeleton-rect {
    border-radius: var(--aurora-shape-borderRadius-sm);
}

/* ——— Hover Effects ——— */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--aurora-shadow-z20);
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(0, 167, 111, 0.3);
}

/* Image Reveal */
.image-reveal {
    overflow: hidden;
    position: relative;
}

.image-reveal img {
    transition: transform 0.6s ease;
}

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

/* ——— Transition Utilities ——— */
.transition-all { transition: all 0.3s ease; }
.transition-colors { transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease; }
.transition-transform { transition: transform 0.3s ease; }
.transition-opacity { transition: opacity 0.3s ease; }
.transition-shadow { transition: box-shadow 0.3s ease; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .reveal, .reveal-left, .reveal-right, .reveal-scale {
        opacity: 1;
        transform: none;
    }
}

/* ——— Page Loader ——— */
.page-loader {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--aurora-palette-background-default);
    z-index: 9999;
    transition: opacity 0.3s ease;
}

.page-loader.hidden {
    opacity: 0;
    pointer-events: none;
}

.page-loader__spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--aurora-palette-grey-300);
    border-top-color: var(--aurora-palette-primary-main);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}