/* ============================================
   볼라피오 - Animation Stylesheet
   ============================================ */

@keyframes heroWaveFloat {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(30px, -30px) rotate(3deg);
    }

    50% {
        transform: translate(-20px, 20px) rotate(-2deg);
    }

    75% {
        transform: translate(20px, 10px) rotate(2deg);
    }
}

@keyframes particleFloat {

    0%,
    100% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    90% {
        opacity: 1;
    }

    100% {
        transform: translateY(-120vh) translateX(50px);
        opacity: 0;
    }
}

@keyframes scrollBounce {

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

    50% {
        transform: translateX(-50%) translateY(12px);
    }
}

@keyframes blink {

    0%,
    100% {
        border-color: transparent;
    }

    50% {
        border-color: var(--color-primary);
    }
}

.typing-cursor {
    animation: blink 1s step-end infinite;
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(255, 152, 0, 0.4);
    }

    50% {
        box-shadow: 0 0 0 20px rgba(255, 152, 0, 0);
    }
}

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@keyframes fadeSlideLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }

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

@keyframes fadeSlideRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.85);
    }

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

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

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

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

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

@keyframes lineDraw {
    to {
        stroke-dashoffset: 0;
    }
}

@keyframes iconMorph {
    0% {
        border-radius: 50%;
    }

    25% {
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }

    50% {
        border-radius: 50% 50% 30% 70% / 70% 30% 70% 30%;
    }

    75% {
        border-radius: 30% 70% 50% 50% / 50% 50% 70% 30%;
    }

    100% {
        border-radius: 50%;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(60px);
    }

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

.loading-screen .loading-logo {
    animation: fadeSlideIn 0.8s ease 0.2s forwards;
}

.parallax-layer {
    will-change: transform;
}

.tilt-card {
    transform-style: preserve-3d;
    will-change: transform;
}

.tilt-card-inner {
    transform: translateZ(30px);
}

.hover-lift {
    transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1), box-shadow 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.hover-lift:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12);
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(135deg, #4A90E2, #5CB85C);
    z-index: 1001;
    transition: width 0.1s linear;
}

.menu-overlay-link:nth-child(1) {
    transition-delay: 0.1s;
}

.menu-overlay-link:nth-child(2) {
    transition-delay: 0.2s;
}

.menu-overlay-link:nth-child(3) {
    transition-delay: 0.3s;
}

.menu-overlay-link:nth-child(4) {
    transition-delay: 0.4s;
}

.menu-overlay-link:nth-child(5) {
    transition-delay: 0.5s;
}

.menu-overlay.active .menu-overlay-link {
    opacity: 1;
    transform: translateY(0);
}

.morph-icon {
    animation: iconMorph 8s ease-in-out infinite;
}

.gradient-animated {
    background-size: 200% 200%;
    animation: gradientShift 6s ease infinite;
}

.float-elem {
    animation: float 6s ease-in-out infinite;
}

.float-elem:nth-child(2) {
    animation-delay: 1s;
}

.float-elem:nth-child(3) {
    animation-delay: 2s;
}

.highlight-reveal {
    background: linear-gradient(90deg, rgba(74, 144, 226, 0.15) 50%, transparent 50%);
    background-size: 200% 100%;
    background-position: 100% 0;
    transition: background-position 0.6s ease;
}

.highlight-reveal.active {
    background-position: 0% 0;
}