/* Loading Animations and Effects */

/* Page Loader - Full Screen (Simple 1s delay) */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
    animation: fadeInUp 0.6s ease-out;
}

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

.loader-spinner {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    position: relative;
}

.loader-spinner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 4px solid rgba(52, 85, 120, 0.1);
    border-top-color: #345;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-spinner::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 6px;
    right: 6px;
    bottom: 6px;
    border: 4px solid transparent;
    border-top-color: #61b6f2;
    border-radius: 50%;
    animation: spin 0.6s linear infinite reverse;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loader-text {
    font-size: 1.1rem;
    color: #345;
    font-weight: 500;
    font-family: 'Jost', sans-serif;
}

/* Image Loading Overlay (for showcase image transitions) */
.image-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 5;
    animation: overlayFadeIn 0.3s ease-out;
}

@keyframes overlayFadeIn {
    from {
        opacity: 0;
        backdrop-filter: blur(0px);
    }
    to {
        opacity: 1;
        backdrop-filter: blur(8px);
    }
}

.image-loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Video Loading Overlay (for video transitions) */
.video-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(248, 249, 250, 0.98) 0%, rgba(236, 240, 244, 0.98) 100%);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10;
    animation: overlayFadeIn 0.3s ease-out;
}

.video-loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.video-loading-content {
    text-align: center;
    max-width: 400px;
    padding: 0 20px;
}

.video-loading-bar-container {
    margin-bottom: 20px;
}

.video-loading-bar {
    width: 100%;
    height: 8px;
    background: rgba(52, 85, 120, 0.12);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.08);
    position: relative;
}

.video-loading-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #5a8ab8 0%, #61b6f2 50%, #5a8ab8 100%);
    background-size: 200% 100%;
    border-radius: 12px;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 12px rgba(97, 182, 242, 0.6);
    animation: shimmer 2s ease-in-out infinite;
    position: relative;
}

.video-loading-bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.4) 50%, transparent 100%);
    animation: slide 1.5s ease-in-out infinite;
}

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

@keyframes slide {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.video-loading-text {
    font-size: 1.1rem;
    color: #345;
    font-weight: 500;
    margin-bottom: 8px;
    font-family: 'Jost', sans-serif;
    animation: pulse 1.5s ease-in-out infinite;
}

.video-loading-percentage {
    font-size: 2rem;
    color: #5a8ab8;
    font-weight: 700;
    font-family: 'Jost', sans-serif;
    letter-spacing: -0.02em;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.image-spinner {
    width: 50px;
    height: 50px;
    position: relative;
}

.image-spinner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 3px solid rgba(52, 85, 120, 0.15);
    border-top-color: #345;
    border-radius: 50%;
    animation: spin 0.8s ease-in-out infinite;
}

.image-spinner::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    border: 3px solid transparent;
    border-top-color: #61b6f2;
    border-bottom-color: #61b6f2;
    border-radius: 50%;
    animation: spin 1.2s ease-in-out infinite reverse;
}

/* Point Cloud Loading - 3D Particles Convergence Animation */
.pointcloud-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.pointcloud-particles {
    width: 120px;
    height: 120px;
    position: relative;
    perspective: 1000px;
}

.particle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: radial-gradient(circle, #61b6f2 0%, #345 100%);
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(97, 182, 242, 0.8);
    animation: particleConverge 2.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.particle:nth-child(1) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    top: 10%;
    left: 50%;
    animation-delay: 0.15s;
}

.particle:nth-child(3) {
    top: 10%;
    left: 90%;
    animation-delay: 0.3s;
}

.particle:nth-child(4) {
    top: 50%;
    left: 90%;
    animation-delay: 0.45s;
}

.particle:nth-child(5) {
    top: 90%;
    left: 90%;
    animation-delay: 0.6s;
}

.particle:nth-child(6) {
    top: 90%;
    left: 50%;
    animation-delay: 0.75s;
}

.particle:nth-child(7) {
    top: 90%;
    left: 10%;
    animation-delay: 0.9s;
}

.particle:nth-child(8) {
    top: 50%;
    left: 10%;
    animation-delay: 1.05s;
}

@keyframes particleConverge {
    0% {
        transform: translate(-50%, -50%) scale(0.5) rotateZ(0deg);
        opacity: 0;
    }
    25% {
        transform: translate(-50%, -50%) scale(1.2) rotateZ(90deg);
        opacity: 1;
    }
    50% {
        transform: translate(-50%, -50%) translate(calc(50px - 50%), calc(50px - 50%)) scale(1.5) rotateZ(180deg);
        opacity: 1;
        box-shadow: 0 0 25px rgba(97, 182, 242, 1), 0 0 40px rgba(52, 85, 120, 0.6);
    }
    75% {
        transform: translate(-50%, -50%) scale(1.2) rotateZ(270deg);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(0.5) rotateZ(360deg);
        opacity: 0;
    }
}

/* Add rotating ring effect */
.pointcloud-particles::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    border: 2px solid transparent;
    border-top-color: rgba(97, 182, 242, 0.4);
    border-right-color: rgba(97, 182, 242, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: ringRotate 2s linear infinite;
}

.pointcloud-particles::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60px;
    height: 60px;
    border: 2px solid transparent;
    border-bottom-color: rgba(52, 85, 120, 0.4);
    border-left-color: rgba(52, 85, 120, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: ringRotate 1.5s linear infinite reverse;
}

@keyframes ringRotate {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* Fade In Animation for Content */
.fade-in {
    animation: fadeIn 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading Dots Animation */
.loading-dots::after {
    content: '';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}