/* Page Loading Overlay */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.3s ease-out;
}

.page-loader.fade-out {
    opacity: 0;
    pointer-events: none;
}

/* Loading Spinner */
.loader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--outline-variant);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Loading Logo Animation */
.loader-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.loader-logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--on-surface);
    letter-spacing: 0.05em;
    animation: pulse 1.5s ease-in-out infinite;
}

.loader-logo-subtitle {
    font-size: 10px;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    opacity: 0.8;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Progress Bar */
.loader-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--surface-container);
    overflow: hidden;
}

.loader-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    animation: progress 1.5s ease-in-out infinite;
    transform-origin: left;
}

@keyframes progress {
    0% { transform: scaleX(0); }
    50% { transform: scaleX(0.7); }
    100% { transform: scaleX(1); }
}