/* 
======================
  Animation Styles 
======================
*/

/* Hero Section Particles Background */
#particles-js {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* Navigation Link Fade In Animation */
@keyframes navLinkFade {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Project Card Animation */
.project-card {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    opacity: 0;
    transform: translateY(30px);
}

.project-card.animate {
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

/* Skill Item Animation */
.skill-item {
    transition: transform 0.3s ease, box-shadow 0.3s ease, color 0.3s ease;
}

.skill-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.skill-item:hover i {
    color: var(--primary-color);
    transform: scale(1.2);
    transition: transform 0.3s ease, color 0.3s ease;
}

.skill-item i {
    transition: transform 0.3s ease, color 0.3s ease;
}

/* Reveal Animation Classes */
.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s ease;
}

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s ease;
}

.reveal-up {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.reveal-down {
    opacity: 0;
    transform: translateY(-50px);
    transition: all 0.8s ease;
}

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

.reveal-rotate {
    opacity: 0;
    transform: rotate(-5deg) scale(0.9);
    transition: all 0.8s ease;
}

.revealed {
    opacity: 1;
    transform: translate(0) scale(1) rotate(0);
}

/* Typing Animation */
.typing-text::after {
    content: '|';
    animation: blink 0.7s infinite;
}

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

/* Floating Animation */
.floating {
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* Button hover effects */
.btn {
    position: relative;
    overflow: hidden;
}

.btn:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn:hover:after {
    width: 300%;
    height: 300%;
}

/* Section transitions */
.section-fade-in {
    opacity: 0;
    animation: fadeIn 1s forwards;
    animation-delay: 0.2s;
}

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

/* Project filter buttons */
.project-filter-btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.project-filter-btn:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.project-filter-btn:hover:after,
.project-filter-btn.active:after {
    width: 100%;
}

.project-filter-btn.active {
    color: var(--primary-color);
}

/* Progress bar animation */
.progress-bar {
    position: relative;
    height: 6px;
    border-radius: 3px;
    background-color: var(--light-color);
    overflow: hidden;
}

.progress-bar .progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background-color: var(--primary-color);
    width: 0;
    transition: width 1.5s ease;
}

/* Card flip animation */
.flip-card {
    perspective: 1000px;
    height: 300px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s;
    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%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.flip-card-back {
    transform: rotateY(180deg);
    background-color: var(--primary-color);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

/* Tilt effect */
.tilt {
    transition: transform 0.1s ease;
    transform-style: preserve-3d;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.scroll-indicator:hover {
    opacity: 1;
}

.scroll-indicator .mouse {
    width: 30px;
    height: 50px;
    border: 2px solid #fff;
    border-radius: 20px;
    position: relative;
}

.scroll-indicator .mouse:before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: #fff;
    border-radius: 50%;
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0% { top: 10px; opacity: 1; }
    100% { top: 30px; opacity: 0; }
}

/* Page transition overlay */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    z-index: 9999;
    transform: translateY(100%);
    transition: transform 0.6s ease;
}

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