:root {
    --primary: #6366f1;
    --primary-glow: rgba(99, 102, 241, 0.5);
    --success: #10b981;
    --danger: #ef4444;
    --dark-bg: #090e1a;
    --dark-card: #111827;
    --glass: rgba(17, 24, 39, 0.75);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --accent: #8b5cf6;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, sans-serif;
}

html, body {
    overflow-x: hidden;
    width: 100%;
}

body {
    background: var(--dark-bg);
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.1) 0px, transparent 50%);
    color: var(--text-main);
    min-height: 100vh;
    padding: 1rem;
}

/* TOP BAR */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 0.6rem 1.5rem;
    border-radius: 3rem;
    margin-bottom: 2rem;
    max-width: 100%;
}

#clock-badge {
    font-family: 'Monaco', monospace;
    font-weight: 700;
    color: var(--primary);
    font-size: 0.85rem;
}

.system-status {
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-dim);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--success);
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

/* HEADER & CONTROLS */
header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.logo-area h1 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.accent {
    background: linear-gradient(to right, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-area p {
    color: var(--text-dim);
    font-size: 0.85rem;
}

.controls {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.select-input {
    background: var(--dark-card);
    border: 1px solid var(--glass-border);
    color: white;
    padding: 0.75rem;
    border-radius: 0.75rem;
    outline: none;
    font-size: 0.85rem;
}

.btn {
    padding: 0.8rem 1.2rem;
    border-radius: 0.75rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.85rem;
}

.btn:disabled {
    opacity: 0.3;
}

.btn-primary { background: var(--primary); color: white; }
.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }

/* DASHBOARD GRID */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-gap: 1rem;
}

.card {
    background: var(--glass);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 1.5rem;
    padding: 1.25rem;
    width: 100%;
    overflow: hidden;
}

.main-area { grid-column: span 9; }
.side-panel { grid-column: span 3; display: flex; flex-direction: column; gap: 1rem; }
.chart-wide { grid-column: span 6; }

.video-card {
    position: relative;
    padding: 0;
    background: #000;
    min-height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#webcam {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.live-indicator {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: rgba(0,0,0,0.6);
    padding: 0.4rem 0.8rem;
    border-radius: 2rem;
    font-size: 0.6rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.stats-summary {
    text-align: center;
    padding: 2rem 1rem;
}

.stats-summary .value {
    font-size: 4rem;
    font-weight: 900;
    color: var(--primary);
    text-shadow: 0 5px 15px var(--primary-glow);
}

.chart-mini, .chart-wide {
    height: 300px;
    display: flex;
    flex-direction: column;
}

h2 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

canvas {
    flex: 1;
    width: 100% !important;
}

/* RESPONSIVENESS */
@media (max-width: 1200px) {
    .main-area { grid-column: span 8; }
    .side-panel { grid-column: span 4; }
}

@media (max-width: 992px) {
    .main-area, .side-panel, .chart-wide { grid-column: span 12; }
    .side-panel { flex-direction: row; }
    .side-panel > div { flex: 1; }
}

@media (max-width: 768px) {
    body { padding: 0.75rem; }
    
    .top-bar { 
        padding: 0.75rem 1rem; 
        flex-direction: column; 
        gap: 0.4rem;
        border-radius: 1rem;
    }
    
    header { 
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1rem;
    }
    
    .controls { width: 100%; }
    .btn, .select-input { width: 100%; }

    .side-panel { flex-direction: column; }
    .video-card { min-height: 280px; }
    
    .dashboard-grid {
        display: flex;
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .logo-area h1 { font-size: 1.5rem; }
    .stats-summary .value { font-size: 3rem; }
}

.pwa-float-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: 5rem;
    border: none;
    font-weight: 800;
    box-shadow: 0 10px 30px var(--primary-glow);
    cursor: pointer;
    z-index: 100;
}