/* 
* KarlGoods.com Animations CSS
* This file contains all animations and transitions for the KarlGoods.com website
*/

/* ======== Animation Keyframes ======== */

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

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

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

/* Fade In Left */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Fade In Right */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Glow */
@keyframes glow {
    0% {
        box-shadow: 0 0 0 rgba(58, 110, 165, 0);
    }
    50% {
        box-shadow: 0 0 20px rgba(58, 110, 165, 0.5);
    }
    100% {
        box-shadow: 0 0 0 rgba(58, 110, 165, 0);
    }
}

/* Slide */
@keyframes slide {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

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

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

/* ======== Applied Animations ======== */

/* Page Load Animations */
.page-transition {
    animation: fadeIn 0.5s ease forwards;
}

/* Section appear on scroll */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

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

/* Carousel Animations */
.carousel-item {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.carousel-item.active {
    opacity: 1;
}

.carousel-content h2 {
    animation: fadeInUp 0.5s ease 0.3s forwards;
    opacity: 0;
}

.carousel-content p {
    animation: fadeInUp 0.5s ease 0.5s forwards;
    opacity: 0;
}

.carousel-content .category {
    animation: fadeInLeft 0.5s ease 0.1s forwards;
    opacity: 0;
}

.carousel-content .btn-read-more {
    animation: fadeInUp 0.5s ease 0.7s forwards;
    opacity: 0;
}

/* Button Hover Effects */
.btn-primary, .btn-secondary, .btn-outline, .btn-subscribe, .btn-read-more, .btn-load-more {
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary:hover, .btn-secondary:hover, .btn-subscribe:hover, .btn-read-more:hover {
    animation: glow 1.5s infinite;
}

.btn-outline:hover::before, .btn-load-more:hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%) skewX(-15deg);
    animation: slide 0.5s forwards;
    z-index: -1;
}

/* Navigation Hover Effects */
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease, left 0.3s ease;
}

.main-nav a:hover::after, .main-nav a.active::after {
    width: 100%;
    left: 0;
}

/* Card Hover Effects */
.article-card, .playlist-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover, .playlist-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Image Hover Effects */
.article-img img, .playlist-thumbnail img {
    transition: transform 0.5s ease;
}

.article-card:hover .article-img img, .playlist-card:hover .playlist-thumbnail img {
    transform: scale(1.05);
}

/* Social Media Icons Hover Effects */
.social-link {
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.social-link:hover {
    transform: translateY(-3px);
}

/* Play Button Animation */
.play-icon {
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.playlist-card:hover .play-icon {
    transform: translate(-50%, -50%) scale(1.1);
    animation: pulse 1.5s infinite;
}

/* Icon Animations */
.icon-animated {
    transition: transform 0.3s ease;
}

.icon-animated:hover {
    animation: bounce 1s;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 30px;
    height: 30px;
    border: 3px solid rgba(58, 110, 165, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

/* Notification Animation */
.notification {
    animation: fadeInDown 0.5s ease forwards;
}

/* Section Title Animation */
.section-header h2 {
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.section-header:hover h2::after {
    width: 100px;
}

/* Scroll Indicator */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background-color: var(--primary-color);
    z-index: 9999;
    width: 0;
    transition: width 0.1s ease;
}

/* Mobile Menu Animation */
.mobile-nav {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.mobile-nav.active {
    transform: translateX(0);
}

/* Page Transition Effects */
.page-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--primary-color);
    z-index: 9999;
    transform: translateY(100%);
    transition: transform 0.5s ease;
}

.page-transition-overlay.active {
    transform: translateY(0);
}

/* Filter Button Animation */
.filter-btn {
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(58, 110, 165, 0.2);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: -1;
    border-radius: 3rem;
}

.filter-btn:hover::before {
    transform: translateX(0);
}

/* Form Input Focus Animation */
input:focus, textarea:focus {
    animation: glow 1.5s infinite;
}

/* Newsletter Form Animation */
.newsletter-form .form-group {
    position: relative;
    overflow: hidden;
}

.newsletter-form .form-group::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width 0.3s ease;
}

.newsletter-form .form-group:focus-within::after {
    width: 100%;
}

/* Hover Link Animation */
.hover-link {
    position: relative;
    display: inline-block;
}

.hover-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: currentColor;
    transition: width 0.3s ease;
}

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

/* Micro-interactions for form elements */
button, input[type="submit"] {
    position: relative;
    overflow: hidden;
}

button:active, input[type="submit"]:active {
    transform: scale(0.98);
}

/* Checkbox animation */
input[type="checkbox"] {
    transition: all 0.3s ease;
}

input[type="checkbox"]:checked {
    transform: scale(1.1);
}

/* Custom animations for specific page elements */
.logo img {
    transition: transform 0.3s ease;
}

.logo:hover img {
    transform: scale(1.05);
}

/* Animation for dropdown menus */
.dropdown {
    transform-origin: top center;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
    transform: scaleY(0.8) translateY(-10px);
}

.has-dropdown:hover .dropdown {
    transform: scaleY(1) translateY(0);
}

/* Smooth scrolling for all anchors */
html {
    scroll-behavior: smooth;
}

/* Lazy loading animation */
.lazy-load {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.lazy-load.loaded {
    opacity: 1;
}

/* Animation for category tags */
.category {
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.article-card:hover .category {
    transform: translateY(-3px);
    background-color: var(--secondary-color);
}

/* Animation for article meta info */
.article-meta {
    transition: color 0.3s ease;
}

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

/* Card flip animation */
.flip-card {
    perspective: 1000px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
}

.flip-card-back {
    transform: rotateY(180deg);
}