body.loading {
    overflow: hidden;
}

#startup-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    pointer-events: none;
}

.loader-overlay {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #050505 0%, #0d0d0d 50%, #050505 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.loader-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 255, 157, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 255, 157, 0.03) 0%, transparent 50%);
}

.loader-container {
    text-align: center;
    z-index: 1;
    position: relative;
}

.logo-wrapper {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 30px;
}

.logo-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border: 2px solid rgba(0, 255, 157, 0.3);
    border-radius: 50%;
    transform-origin: center;
    margin: -50% 0 0 -50%;
    box-shadow: 
        0 0 20px rgba(0, 255, 157, 0.2),
        inset 0 0 20px rgba(0, 255, 157, 0.1);
}

.logo-ring::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 50%;
    width: 10px;
    height: 10px;
    background: var(--amber);
    border-radius: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 10px var(--amber), 0 0 20px var(--amber);
}

.logo-core {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, var(--amber) 0%, var(--amber-dim) 100%);
    border-radius: 50%;
    transform-origin: center;
    margin: -20px 0 0 -20px;
    box-shadow: 
        0 0 30px var(--amber),
        0 0 60px rgba(0, 255, 157, 0.5),
        inset 0 0 10px rgba(255, 255, 255, 0.3);
}

.logo-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--amber);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 8px var(--amber);
}

.loading-text {
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    color: var(--amber);
    text-shadow: 0 0 10px var(--amber);
    margin-bottom: 20px;
    letter-spacing: 2px;
    animation: textFlicker 2s infinite;
}

@keyframes textFlicker {
    0%, 100% { opacity: 1; }
    92% { opacity: 1; }
    93% { opacity: 0.6; }
    94% { opacity: 1; }
    96% { opacity: 0.8; }
    97% { opacity: 1; }
}

.progress-bar {
    width: 200px;
    height: 3px;
    background: rgba(0, 255, 157, 0.2);
    border-radius: 2px;
    margin: 0 auto 10px;
    overflow: hidden;
    box-shadow: 0 0 10px rgba(0, 255, 157, 0.3);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--amber), var(--term-green));
    border-radius: 2px;
    transition: width 0.3s ease-out;
    box-shadow: 0 0 10px var(--amber);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: progressShimmer 1.5s infinite;
}

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

.progress-text {
    font-family: 'Courier New', Courier, monospace;
    font-size: 12px;
    color: var(--amber);
    opacity: 0.7;
    letter-spacing: 1px;
}

.scan-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--amber), transparent);
    animation: scanLine 2s linear infinite;
}

@keyframes scanLine {
    0% { top: 0; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

#startup-loader.fade-out {
    animation: fadeOut 0.5s ease-out forwards;
}

@keyframes fadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; }
}