/* =========================================================================
   STYLE SHEET FOR WEBRTC RESEARCH FRONTEND
   Path: /var/www/webrtc-packetloss-research/02-klien-webrtc/style.css
   ========================================================================= */

:root {
    --bg-primary: #121824;
    --bg-secondary: #1a2333;
    --bg-card: #222f47;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --color-primary: #3b82f6;
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    --border-radius: 8px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-main);
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--bg-secondary);
    padding-bottom: 20px;
}

header h1 {
    font-size: 2.2rem;
    color: var(--text-main);
}

.subtitle {
    color: var(--text-muted);
    font-size: 1rem;
    margin-top: 5px;
}

/* Layout Panel Kontrol */
.control-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

@media (max-width: 768px) {
    .control-panel {
        grid-template-columns: 1fr;
    }
}

.card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

.card h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
    border-left: 4px solid var(--color-primary);
    padding-left: 10px;
}

/* Grup Form Input & Tombol */
.input-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
}

.input-group label {
    margin-bottom: 5px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.input-group input {
    padding: 10px;
    border-radius: var(--border-radius);
    border: 1px solid var(--bg-secondary);
    background-color: var(--bg-primary);
    color: var(--text-main);
    font-size: 1rem;
}

.button-group {
    display: flex;
    gap: 10px;
}

.btn {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
    text-align: center;
}

.btn:disabled {
    background-color: var(--text-muted) !important;
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary { background-color: var(--color-primary); color: #fff; }
.btn-primary:hover { background-color: #2563eb; }

.btn-success { background-color: var(--color-success); color: #fff; }
.btn-success:hover { background-color: #059669; }

.btn-danger { background-color: var(--color-danger); color: #fff; }
.btn-danger:hover { background-color: #dc2626; }

/* Grid Telemetri Data */
.grid-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.metric-box {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: 10px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 2px;
}

.metric-value {
    font-size: 1.1rem;
    font-weight: 700;
}

/* Status Dinamis Warna */
.status-disconnected { color: var(--color-danger); }
.status-connecting { color: var(--color-warning); }
.status-connected { color: var(--color-success); }

/* Grid Aliran Video */
.video-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

@media (max-width: 640px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
}

.video-container {
    position: relative;
    background-color: #000;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    border: 2px solid var(--bg-secondary);
}

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

.video-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: rgba(0, 0, 0, 0.6);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 10;
}

footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--bg-secondary);
}

footer a {
    color: var(--color-primary);
    text-decoration: none;
}