:root {
    --bg: #0f1419;
    --surface: #1a2332;
    --surface-2: #243044;
    --border: #2d3a4f;
    --text: #e8edf4;
    --text-muted: #8b9cb3;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #22c55e;
    --success-hover: #16a34a;
    --danger: #ef4444;
    --warning: #f59e0b;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

.app {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px 48px;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 12px;
}

.header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.camera-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-dot.online {
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.status-dot.offline {
    background: var(--danger);
}

.main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 900px) {
    .main {
        grid-template-columns: 1fr;
    }
}

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.panel h2 {
    font-size: 1.1rem;
    margin-bottom: 18px;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.panel-history {
    grid-column: 1 / -1;
}

.order-input-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.order-input-group input {
    width: 100%;
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 0.3em;
    padding: 16px;
    background: var(--surface-2);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    outline: none;
    transition: border-color 0.2s;
}

.order-input-group input:focus {
    border-color: var(--primary);
}

.actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.btn {
    flex: 1;
    min-width: 140px;
    padding: 14px 20px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s, transform 0.1s, opacity 0.2s;
}

.btn:active:not(:disabled) {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
}

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

.btn-success:hover:not(:disabled) {
    background: var(--success-hover);
}

.btn-secondary {
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
    flex: 0;
    min-width: auto;
    padding: 10px 16px;
    font-size: 0.875rem;
}

.btn-secondary:hover {
    background: var(--border);
}

.hint {
    margin-top: 14px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.preview-wrap {
    position: relative;
    aspect-ratio: 4 / 3;
    background: #000;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}

.preview-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: none;
}

.preview-wrap img.visible {
    display: block;
}

.preview-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: center;
    padding: 20px;
}

.preview-placeholder.hidden {
    display: none;
}

.session-info {
    margin-top: 14px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.history-header h2 {
    margin-bottom: 0;
}

.search-group {
    display: flex;
    gap: 8px;
    align-items: center;
}

.search-group input {
    width: 100px;
    padding: 10px 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 1rem;
    text-align: center;
    outline: none;
}

.history-table-wrap {
    overflow-x: auto;
}

.history-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.history-table th,
.history-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.history-table th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.history-table tr:hover td {
    background: var(--surface-2);
}

.history-table .empty {
    text-align: center;
    color: var(--text-muted);
    padding: 32px;
}

.status-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-pending { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.status-recording { background: rgba(59, 130, 246, 0.2); color: var(--primary); }
.status-finishing,
.status-uploading { background: rgba(139, 156, 179, 0.2); color: var(--text-muted); }
.status-completed { background: rgba(34, 197, 94, 0.2); color: var(--success); }
.status-error { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

.video-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.video-link:hover {
    text-decoration: underline;
}

.hidden {
    display: none !important;
}

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    padding: 14px 24px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    z-index: 1000;
    max-width: 90vw;
    text-align: center;
}

.toast.error {
    border-color: var(--danger);
    color: #fca5a5;
}

.toast.success {
    border-color: var(--success);
    color: #86efac;
}