/* ClearKit - Animations Stylesheet */

/* ==================== Scroll Reveal Animations ==================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Staggered reveal for children */
.reveal-stagger > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger > *:nth-child(2) { transition-delay: 100ms; }
.reveal-stagger > *:nth-child(3) { transition-delay: 200ms; }
.reveal-stagger > *:nth-child(4) { transition-delay: 300ms; }
.reveal-stagger > *:nth-child(5) { transition-delay: 400ms; }
.reveal-stagger > *:nth-child(6) { transition-delay: 500ms; }

/* ==================== Hover Effects ==================== */

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

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

/* Glow effect */
.hover-glow {
    transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
}

/* Color shift */
.hover-color {
    transition: color var(--transition-fast);
}

.hover-color:hover {
    color: var(--color-primary);
}

/* ==================== Loading Animations ==================== */

/* Skeleton loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-gray-200) 25%,
        var(--color-gray-100) 50%,
        var(--color-gray-200) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

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

/* Spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ==================== Page Transitions ==================== */

/* Fade in */
.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

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

/* Slide in from bottom */
.slide-up {
    animation: slideUp 0.5s ease forwards;
}

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

/* Slide in from left */
.slide-right {
    animation: slideRight 0.5s ease forwards;
}

@keyframes slideRight {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scale in */
.scale-in {
    animation: scaleIn 0.4s ease forwards;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ==================== Micro-interactions ==================== */

/* Button press effect */
.btn:active {
    transform: scale(0.98);
}

/* Focus ring */
.btn:focus-visible,
.nav-link:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Card hover gradient border */
.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, transparent 0%, transparent 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card:hover::before {
    background: var(--gradient-primary);
    opacity: 1;
}

.feature-card {
    position: relative;
}

/* ==================== Parallax Effects ==================== */

.parallax {
    will-change: transform;
}

/* ==================== Text Animations ==================== */

/* Typewriter effect (JS required) */
.typewriter {
    overflow: hidden;
    white-space: nowrap;
    border-right: 2px solid var(--color-primary);
    animation: typing 3s steps(40, end), blink 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink {
    from, to { border-color: transparent; }
    50% { border-color: var(--color-primary); }
}

/* Gradient text shimmer */
.gradient-shimmer {
    background: linear-gradient(
        90deg,
        var(--color-primary) 0%,
        var(--color-secondary) 50%,
        var(--color-primary) 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
    to { background-position: 200% center; }
}

/* ==================== Navigation Animations ==================== */

/* Mobile menu toggle */
.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile menu slide */
.nav-menu {
    transition: transform var(--transition-base), opacity var(--transition-base);
}

/* ==================== Scroll Progress Indicator ==================== */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient-primary);
    z-index: 9999;
    width: 0%;
    transition: width 0.1s linear;
}

/* ==================== Toast Notifications ==================== */

.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    transform: translateX(calc(100% + var(--spacing-xl)));
    opacity: 0;
    transition: all var(--transition-base);
    z-index: 9999;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

/* ==================== Ripple Effect ==================== */

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

.ripple::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, var(--color-white) 10%, transparent 10%);
    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;
}

/* ==================== 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 {
        opacity: 1;
        transform: none;
    }
}