/* Animations CSS file for the portfolio website */

/* ===== KEYFRAMES ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

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

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

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

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

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

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0);
    }
}

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

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

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

/* ===== ANIMATION CLASSES ===== */
.animate {
    animation-duration: 1s;
    animation-fill-mode: both;
}

.animate-slow {
    animation-duration: 1.5s;
}

.animate-slower {
    animation-duration: 2s;
}

.animate-fast {
    animation-duration: 0.5s;
}

.animate-faster {
    animation-duration: 0.3s;
}

.animate-infinite {
    animation-iteration-count: infinite;
}

.animate-delay-1 {
    animation-delay: 0.1s;
}

.animate-delay-2 {
    animation-delay: 0.2s;
}

.animate-delay-3 {
    animation-delay: 0.3s;
}

.animate-delay-4 {
    animation-delay: 0.4s;
}

.animate-delay-5 {
    animation-delay: 0.5s;
}

/* Animation classes */
.fade-in {
    animation-name: fadeIn;
}

.fade-in-up {
    animation-name: fadeInUp;
}

.fade-in-down {
    animation-name: fadeInDown;
}

.fade-in-left {
    animation-name: fadeInLeft;
}

.fade-in-right {
    animation-name: fadeInRight;
}

.zoom-in {
    animation-name: zoomIn;
}

.bounce {
    animation-name: bounce;
}

.pulse {
    animation-name: pulse;
}

.float {
    animation-name: float;
}

.spin {
    animation-name: spin;
}

/* ===== SPECIAL ANIMATION EFFECTS ===== */
.typewriter {
    overflow: hidden;
    white-space: nowrap;
    border-right: 3px solid var(--primary-color);
    animation: 
        typewriter 4s steps(40) forwards,
        blinkCursor 0.75s step-end infinite;
}

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

.hover-lift:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.hover-zoom {
    transition: transform 0.3s ease;
    transform-origin: center center;
}

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

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 15px rgba(52, 152, 219, 0.5);
}

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

.btn-animated:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
}

.btn-animated:hover:after {
    width: 200%;
    height: 200%;
}

/* Text hover effects */
.text-underline-hover {
    position: relative;
}

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

.text-underline-hover:hover::after {
    width: 100%;
}

/* Interactive card effects */
.card-3d {
    transition: transform 0.3s ease;
    transform-style: preserve-3d;
}

.card-3d:hover {
    transform: rotateY(5deg) rotateX(5deg);
}

/* Scroll animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.5s ease;
}

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

/* Progress bar animation */
.progress-bar {
    width: 0;
    transition: width 1s ease;
}

.progress-bar.animate {
    width: 100%;
}

/* Gradient background animation */
.gradient-bg {
    background: linear-gradient(-45deg, #3498db, #2ecc71, #e74c3c, #f39c12);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
}

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

/* Image hover effects */
.img-grayscale {
    filter: grayscale(100%);
    transition: filter 0.3s ease;
}

.img-grayscale:hover {
    filter: grayscale(0%);
}

.img-blur {
    filter: blur(2px);
    transition: filter 0.3s ease;
}

.img-blur:hover {
    filter: blur(0);
}

/* Loading spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(52, 152, 219, 0.1);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Ripple effect */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.4) 10%, transparent 10.01%);
    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;
}