/**
 * Premium Page Loader - KOTA-Inspired
 * Creates an immersive loading experience
 */

/* Page Loader Container */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary, #ffffff);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), 
                visibility 0.6s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.page-loader.loaded {
    opacity: 0;
    visibility: hidden;
    transform: scale(1.05);
}

/* Logo Animation */
.loader-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 2rem;
    animation: logoFloat 2s ease-in-out infinite;
}

.loader-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

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

/* Progress Bar */
.loader-progress {
    width: 200px;
    height: 3px;
    background: var(--border-color, rgba(0,0,0,0.1));
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.loader-progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: var(--primary-gradient, linear-gradient(135deg, #5a8ad8 0%, #1E3A6E 100%));
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* Loading Text */
.loader-text {
    margin-top: 1.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted, #64748b);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* Animated Dots */
.loader-dots {
    display: inline-flex;
    gap: 4px;
    margin-left: 8px;
}

.loader-dots span {
    width: 4px;
    height: 4px;
    background: var(--primary-color, #5a8ad8);
    border-radius: 50%;
    animation: dotPulse 1.4s ease-in-out infinite;
}

.loader-dots span:nth-child(1) { animation-delay: 0s; }
.loader-dots span:nth-child(2) { animation-delay: 0.2s; }
.loader-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes dotPulse {
    0%, 80%, 100% { 
        transform: scale(0.6);
        opacity: 0.5;
    }
    40% { 
        transform: scale(1);
        opacity: 1;
    }
}

/* Circular Spinner Alternative */
.loader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color, rgba(0,0,0,0.1));
    border-top-color: var(--primary-color, #5a8ad8);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Dark Mode Adjustments */
[data-theme="dark"] .page-loader {
    background: var(--bg-primary, #0f0f1a);
}

[data-theme="dark"] .loader-progress {
    background: rgba(255, 255, 255, 0.1);
}

/* Reveal Animation Classes */
.reveal-on-load {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-load.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays for reveal */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* Cursor Follower (Optional Premium Effect) */
.cursor-follower {
    position: fixed;
    width: 20px;
    height: 20px;
    background: rgba(43, 161, 216, 0.3);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: transform 0.15s ease-out, width 0.2s ease, height 0.2s ease;
    mix-blend-mode: difference;
    display: none;
}

.cursor-follower.active {
    width: 50px;
    height: 50px;
}

@media (hover: hover) and (pointer: fine) {
    .cursor-follower {
        display: block;
    }
}

@media (max-width: 768px) {
    .cursor-follower {
        display: none;
    }
}