:root { 
    --bg-base: #000000; 
    --card-bg: #0a0a0a; 
    --border-color: #27272a; 
}

body { 
    font-family: 'Inter', sans-serif; 
    background-color: var(--bg-base); 
    color: #ececec; 
    -webkit-font-smoothing: antialiased; 
    overflow: hidden; 
    margin: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bg-grid {
    background-size: 40px 40px;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    position: absolute;
    inset: 0;
    z-index: 0;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 30%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 30%, transparent 100%);
}

.radial-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.08) 0%, transparent 60%);
    z-index: 0;
    pointer-events: none;
}

.glass-card {
    background: rgba(10, 10, 10, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: #3b82f6;
    animation: spin 1s ease-in-out infinite;
}

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

.pulse-text {
    animation: pulse-op 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

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