/* ============================================
   pishgamit - ANIMATIONS & MICRO-INTERACTIONS
   Modern Persian Tech News Portal
   ============================================ */

/* ============================================
   BASE TRANSITIONS
   ============================================ */

.transition-base {
    transition: all 0.2s ease-out;
}

.transition-smooth {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.transition-bounce {
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ============================================
   CARD ANIMATIONS
   ============================================ */

.card-hover {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.card-image-zoom img {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ============================================
   BUTTON ANIMATIONS
   ============================================ */

.btn {
    transition: all 0.2s ease-out;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.btn:active {
    transform: translateY(0);
}

/* Ripple Effect */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-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;
}

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

/* ============================================
   LINK UNDERLINE ANIMATION
   ============================================ */

.link-animated {
    position: relative;
    text-decoration: none;
}

.link-animated::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width 0.3s ease;
}

.link-animated:hover::after {
    width: 100%;
}

/* ============================================
   SKELETON LOADING
   ============================================ */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-tertiary) 25%,
        var(--bg-secondary) 50%,
        var(--bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 8px;
}

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

.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
}

.skeleton-title {
    height: 1.5rem;
    width: 60%;
    margin-bottom: 1rem;
}

.skeleton-image {
    width: 100%;
    padding-top: 56.25%; /* 16:9 */
}

/* ============================================
   FADE ANIMATIONS
   ============================================ */

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

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

.fade-in-down {
    animation: fadeInDown 0.6s ease-out;
}

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

/* ============================================
   SLIDE ANIMATIONS
   ============================================ */

.slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

@keyframes slideInRight {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ============================================
   SCALE ANIMATIONS
   ============================================ */

.scale-in {
    animation: scaleIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

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

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

/* ============================================
   PULSE ANIMATION
   ============================================ */

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

/* ============================================
   BOUNCE ANIMATION
   ============================================ */

.bounce {
    animation: bounce 1s ease infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ============================================
   FLOAT ANIMATION
   ============================================ */

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

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

/* ============================================
   SPIN ANIMATION
   ============================================ */

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

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

/* ============================================
   SHAKE ANIMATION
   ============================================ */

.shake {
    animation: shake 0.5s ease-in-out;
}

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

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

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

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

/* Hover Glow */
.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.5);
}

/* Hover Rotate */
.hover-rotate {
    transition: transform 0.3s ease;
}

.hover-rotate:hover {
    transform: rotate(5deg);
}

/* Hover Grow */
.hover-grow {
    transition: transform 0.3s ease;
}

.hover-grow:hover {
    transform: scale(1.1);
}

/* ============================================
   LOADING ANIMATIONS
   ============================================ */

.loading-spinner {
    border: 3px solid var(--bg-tertiary);
    border-top: 3px solid var(--accent-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

.loading-dots::after {
    content: '...';
    animation: loadingDots 1.5s steps(4, end) infinite;
}

@keyframes loadingDots {
    0%, 20% {
        content: '.';
    }
    40% {
        content: '..';
    }
    60%, 100% {
        content: '...';
    }
}

/* ============================================
   PROGRESS BAR ANIMATION
   ============================================ */

.progress-bar-animated {
    animation: progressBar 2s ease-in-out;
}

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

/* ============================================
   STAGGER ANIMATION (for lists)
   ============================================ */

.stagger-item {
    opacity: 0;
    animation: staggerIn 0.5s ease-out forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.stagger-item:nth-child(2) { animation-delay: 0.2s; }
.stagger-item:nth-child(3) { animation-delay: 0.3s; }
.stagger-item:nth-child(4) { animation-delay: 0.4s; }
.stagger-item:nth-child(5) { animation-delay: 0.5s; }
.stagger-item:nth-child(6) { animation-delay: 0.6s; }

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

/* ============================================
   NOTIFICATION SLIDE IN
   ============================================ */

.notification-slide {
    animation: notificationSlide 0.5s ease-out;
}

@keyframes notificationSlide {
    from {
        transform: translateX(120%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ============================================
   BACKDROP BLUR EFFECT
   ============================================ */

.backdrop-blur {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: backdrop-filter 0.3s ease;
}

/* ============================================
   GRADIENT ANIMATION
   ============================================ */

.gradient-animated {
    background-size: 200% 200%;
    animation: gradientShift 4s ease infinite;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* ============================================
   SCROLL ANIMATIONS (with Intersection Observer)
   ============================================ */

.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   DARK MODE TRANSITION
   ============================================ */

* {
    transition: background-color 0.3s ease,
                color 0.3s ease,
                border-color 0.3s ease;
}

/* ============================================
   FOCUS ANIMATIONS
   ============================================ */

.focus-ring:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
    transition: box-shadow 0.2s ease;
}

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

.tooltip {
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.tooltip.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* ============================================
   MODAL ANIMATIONS
   ============================================ */

.modal-fade-in {
    animation: modalFadeIn 0.3s ease;
}

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

/* ============================================
   REDUCE MOTION (Accessibility)
   ============================================ */

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