:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --primary: #3b82f6;
    --success: #10b981;
    --error: #ef4444;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.1) 0px, transparent 50%);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.app-container {
    width: 100%;
    max-width: 900px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

header {
    text-align: center;
    margin-bottom: 1rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

header p {
    color: var(--text-muted);
    font-weight: 300;
    font-size: 1.1rem;
}

.camera-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.video-container {
    position: relative;
    width: 720px;
    height: 560px;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
    background: #000;
}

video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1); /* Mirror effect */
}

#overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.scan-line {
    position: absolute;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    top: 0;
    left: 0;
    animation: scan 3s linear infinite;
    opacity: 0.5;
    box-shadow: 0 0 15px var(--primary);
}

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

.status-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 1.5rem 2rem;
    border-radius: 16px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    width: 100%;
    max-width: 600px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Status Variants */
.status-card.neutral { border-left: 4px solid var(--primary); }
.status-card.success { border-left: 4px solid var(--success); background: rgba(16, 185, 129, 0.1); }
.status-card.error { border-left: 4px solid var(--error); background: rgba(239, 68, 68, 0.1); }

.status-icon {
    font-size: 2rem;
    background: rgba(255, 255, 255, 0.05);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.status-text h2 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.status-text p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.controls {
    margin-top: 1rem;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 12px;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: inherit;
}

.btn.primary {
    background: var(--primary);
    color: black;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.btn.primary:hover {
    background: #60a5fa;
    transform: translateY(-2px);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Responsive */
@media (max-width: 768px) {
    .video-container {
        width: 100%;
        height: auto;
        aspect-ratio: 4/3;
    }
}