/* Animations */

/* Smooth scroll behavior for filter navigation */
@media (prefers-reduced-motion: no-preference) {
    .filters__tags {
        scroll-behavior: smooth;
    }
}

/* Card entrance animation */
@keyframes cardEntrance {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.project-card {
    animation: cardEntrance 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    animation-fill-mode: both;
}

.project-card:nth-child(1) { animation-delay: 0ms; }
.project-card:nth-child(2) { animation-delay: 50ms; }
.project-card:nth-child(3) { animation-delay: 100ms; }
.project-card:nth-child(4) { animation-delay: 150ms; }
.project-card:nth-child(5) { animation-delay: 200ms; }
.project-card:nth-child(6) { animation-delay: 250ms; }
.project-card:nth-child(7) { animation-delay: 300ms; }
.project-card:nth-child(8) { animation-delay: 350ms; }

/* Fade In Up - Used for skills grid */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

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

/* Slide In Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft var(--transition-slow) ease-out;
}

/* Slide In Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight var(--transition-slow) ease-out;
}

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

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

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

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

.spin {
    animation: spin 1s linear infinite;
}

/* Typewriter Effect */
@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blinkCaret {
    from, to {
        border-color: transparent;
    }
    50% {
        border-color: var(--primary-600);
    }
}

.typewriter {
    overflow: hidden;
    white-space: nowrap;
    margin: 0 auto;
    letter-spacing: .15em;
    animation: typing 3.5s steps(40, end);
}

.typewriter::after {
    content: '';
    border-right: 3px solid var(--primary-600);
    animation: blinkCaret .75s step-end infinite;
}

/* Gradient Animation */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.gradient-animation {
    background: linear-gradient(270deg, var(--primary-400), var(--primary-600), var(--primary-800));
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

/* Float */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.float {
    animation: float 6s ease-in-out infinite;
}

/* Shake */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

.shake {
    animation: shake 0.5s;
}

/* Loading Dots */
@keyframes loadingDots {
    0%, 80%, 100% {
        opacity: 0;
    }
    40% {
        opacity: 1;
    }
}

.loading-dots span {
    animation: loadingDots 1.4s infinite;
}

.loading-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

/* Scroll Reveal Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

.reveal-scale {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* Stagger Animation */
.stagger-in > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-base), transform var(--transition-base);
}

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

.stagger-in.active > *:nth-child(1) { transition-delay: 0ms; }
.stagger-in.active > *:nth-child(2) { transition-delay: 100ms; }
.stagger-in.active > *:nth-child(3) { transition-delay: 200ms; }
.stagger-in.active > *:nth-child(4) { transition-delay: 300ms; }
.stagger-in.active > *:nth-child(5) { transition-delay: 400ms; }
.stagger-in.active > *:nth-child(6) { transition-delay: 500ms; }
.stagger-in.active > *:nth-child(7) { transition-delay: 600ms; }
.stagger-in.active > *:nth-child(8) { transition-delay: 700ms; }

/* Hover Animations */
.hover-lift {
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

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

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

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

.hover-shrink:hover {
    transform: scale(0.95);
}

/* 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-behavior: auto !important;
    }
}