/* ============================================
   HACKER PORTFOLIO - ANIMATIONS
   Keyframes & Motion Effects
   ============================================ */

/* =============== KEYFRAMES =============== */

/* Blink Cursor */
@keyframes blink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

    to {
        opacity: 1;
    }
}

/* Bounce */
@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(-10px);
    }

    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes bounce-flow {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-10px);
    }

    60% {
        transform: translateY(-5px);
    }
}

/* Glitch Animation */
@keyframes glitch {
    0% {
        transform: translate(0);
    }

    20% {
        transform: translate(-2px, 2px);
    }

    40% {
        transform: translate(-2px, -2px);
    }

    60% {
        transform: translate(2px, 2px);
    }

    80% {
        transform: translate(2px, -2px);
    }

    100% {
        transform: translate(0);
    }
}

@keyframes glitch-1 {

    0%,
    100% {
        clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
        transform: translate(-2px, -2px);
    }

    50% {
        clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
        transform: translate(2px, 2px);
    }
}

@keyframes glitch-2 {

    0%,
    100% {
        clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
        transform: translate(2px, 2px);
    }

    50% {
        clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
        transform: translate(-2px, -2px);
    }
}

/* Glow Pulse */
@keyframes glowPulse {

    0%,
    100% {
        box-shadow: 0 0 10px var(--color-cyan), 0 0 20px var(--color-cyan-dim);
    }

    50% {
        box-shadow: 0 0 20px var(--color-cyan), 0 0 40px var(--color-cyan-dim);
    }
}

/* Text Glow Pulse */
@keyframes textGlowPulse {

    0%,
    100% {
        text-shadow: 0 0 10px var(--color-cyan), 0 0 20px var(--color-cyan-dim);
    }

    50% {
        text-shadow: 0 0 20px var(--color-cyan), 0 0 40px var(--color-cyan-dim);
    }
}

/* Scan Line Move */
@keyframes scanLine {
    0% {
        transform: translateY(-100%);
    }

    100% {
        transform: translateY(100vh);
    }
}

/* Fill Progress Bar */
@keyframes fillProgress {
    from {
        width: 0;
    }
}

/* Type Cursor */
@keyframes typeCursor {

    0%,
    45% {
        opacity: 1;
    }

    50%,
    100% {
        opacity: 0;
    }
}

/* Slide In Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Slide In Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* =============== ANIMATION CLASSES =============== */

/* Glitch Text Effect */
.glitch {
    position: relative;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
}

.glitch::before {
    color: var(--color-cyan);
    animation: glitch-1 0.3s infinite linear alternate-reverse;
    z-index: -1;
}

.glitch::after {
    color: var(--color-purple);
    animation: glitch-2 0.3s infinite linear alternate-reverse;
    z-index: -2;
}

.glitch:hover::before,
.glitch:hover::after {
    animation-duration: 0.1s;
}

/* Glow on Hover */
.hover-glow {
    transition: var(--transition-base);
}

.hover-glow:hover {
    box-shadow: var(--glow-cyan);
}

/* Fade In on Scroll */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered Animation */
.stagger>* {
    opacity: 0;
    transform: translateY(20px);
}

.stagger.visible>* {
    animation: fadeInUp 0.6s ease forwards;
}

.stagger.visible>*:nth-child(1) {
    animation-delay: 0.1s;
}

.stagger.visible>*:nth-child(2) {
    animation-delay: 0.2s;
}

.stagger.visible>*:nth-child(3) {
    animation-delay: 0.3s;
}

.stagger.visible>*:nth-child(4) {
    animation-delay: 0.4s;
}

.stagger.visible>*:nth-child(5) {
    animation-delay: 0.5s;
}

.stagger.visible>*:nth-child(6) {
    animation-delay: 0.6s;
}

/* Typing Effect */
.typing {
    overflow: hidden;
    white-space: nowrap;
    border-right: 2px solid var(--color-cyan);
    animation: typing 3s steps(40, end), blink 0.75s step-end infinite;
}

@keyframes typing {
    from {
        width: 0;
    }

    to {
        width: 100%;
    }
}

/* Pulse Glow */
.pulse-glow {
    animation: glowPulse 2s infinite;
}

/* Text Pulse */
.text-pulse {
    animation: textGlowPulse 2s infinite;
}

/* Scan Effect */
.scan-effect::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to bottom,
            transparent,
            var(--color-cyan),
            transparent);
    animation: scanLine 8s linear infinite;
    pointer-events: none;
}

/* Button Hover Effect */
.btn-effect {
    position: relative;
    overflow: hidden;
}

.btn-effect::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(0, 240, 255, 0.2),
            transparent);
    transition: 0.5s;
}

.btn-effect:hover::before {
    left: 100%;
}

/* Card Tilt Effect */
.tilt-effect {
    transform-style: preserve-3d;
    transition: transform 0.3s ease;
}

.tilt-effect:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(-2deg);
}

/* Loading Dots */
.loading-dots::after {
    content: '';
    animation: loadingDots 1.5s infinite;
}

@keyframes loadingDots {
    0% {
        content: '';
    }

    25% {
        content: '.';
    }

    50% {
        content: '..';
    }

    75% {
        content: '...';
    }
}

/* Neon Border Animation */
.neon-border {
    position: relative;
}

.neon-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--color-cyan), var(--color-purple), var(--color-green), var(--color-cyan));
    background-size: 400% 400%;
    z-index: -1;
    border-radius: inherit;
    animation: gradientBorder 3s ease infinite;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.neon-border:hover::before {
    opacity: 1;
}

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

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* Shake Animation (for errors) */
@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 ease-in-out;
}

/* Success Checkmark */
@keyframes checkmark {
    0% {
        stroke-dashoffset: 100;
    }

    100% {
        stroke-dashoffset: 0;
    }
}

.checkmark {
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
    animation: checkmark 0.5s ease forwards;
}