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

:root {
    --primary-color: #0f766e;
    --secondary-color: #0b132b;
    --success-color: #16a34a;
    --warning-color: #ea580c;
    --danger-color: #dc2626;
    --text-primary: #172033;
    --text-secondary: #5d6478;
    --border-color: #d8deea;
    --bg-light: #eef3ff;
    --bg-white: #ffffff;
    --surface-alt: #f7f9ff;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Outfit', 'Segoe UI', sans-serif;
    background:
        radial-gradient(circle at 10% -10%, #c7ffe6 0%, transparent 36%),
        radial-gradient(circle at 92% 0%, #d9f0ff 0%, transparent 38%),
        linear-gradient(180deg, #f6f9ff 0%, #edf3ff 100%);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
    padding: 20px 0;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Space Grotesk', 'Outfit', sans-serif;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.header-status {
    display: flex;
    gap: 20px;
    align-items: center;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 9999px;
    font-size: 14px;
    font-weight: 500;
}

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #fbbf24;
    animation: pulse 2s infinite;
}

.status-dot.connected {
    background-color: #22c55e;
}

.status-dot.disconnected {
    background-color: #ef4444;
    animation: none;
}

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

/* Main Content */
.main-content {
    flex: 1;
    padding: 30px 20px;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

/* Metrics Row */
.metrics-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.metric-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.metric-card.alert-card {
    background: linear-gradient(145deg, #fff8f1 0%, #ffedd5 100%);
    border-left-color: var(--warning-color);
}

.telemetry-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.telemetry-card {
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--surface-alt) 100%);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 14px;
    box-shadow: var(--shadow-sm);
    min-height: 74px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.telemetry-card strong {
    font-size: 18px;
    font-family: 'Space Grotesk', 'Outfit', sans-serif;
    color: var(--secondary-color);
    line-height: 1.2;
    overflow-wrap: anywhere;
}

.telemetry-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.telemetry-wide {
    grid-column: span 2;
}

.metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.metric-header h3 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.metric-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--warning-color);
    color: white;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 600;
}

.metric-badge.safe {
    background: var(--success-color);
}

.metric-badge.warning {
    background: var(--warning-color);
}

.metric-badge.danger {
    background: var(--danger-color);
}

.metric-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.metric-subtext {
    font-size: 14px;
    color: var(--text-secondary);
}

.metric-content {
    padding: 15px 0;
}

.detection-info div,
.stat-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 14px;
}

.detection-info strong,
.stat-item strong {
    color: var(--primary-color);
    font-weight: 600;
}

.alarm-count {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.count {
    text-align: center;
    padding: 15px;
    border-radius: 8px;
    background: var(--bg-light);
}

.count.critical {
    background: #fee2e2;
    border: 1px solid #fca5a5;
}

.count.high {
    background: #fef08a;
    border: 1px solid #fde047;
}

.count.medium {
    background: #dbeafe;
    border: 1px solid #93c5fd;
}

.count .label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.count .number {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

/* Section */
.section {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: var(--shadow-md);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.section-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--secondary-color);
}

.section-actions {
    display: flex;
    gap: 10px;
}

/* Buttons */
.btn {
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

.btn-primary:hover {
    background: #1e3a8a;
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

/* Scores Grid */
.scores-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.score-card {
    background: var(--surface-alt);
    border-radius: 10px;
    padding: 18px;
    border: 1px solid var(--border-color);
}

.score-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.score-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
    font-size: 13px;
}

.score-row span:first-child {
    color: var(--text-secondary);
    font-weight: 500;
    min-width: 70px;
}

.score-bar {
    flex: 1;
    height: 24px;
    background: white;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    position: relative;
    display: flex;
    align-items: center;
    margin: 0 10px;
}

.score-fill {
    height: 100%;
    background: linear-gradient(90deg, #0f766e, #0ea5a4);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

.score-value {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    min-width: 35px;
    text-align: right;
}

/* Charts */
.charts-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 25px;
    margin-bottom: 25px;
}

.chart-container {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow-md);
}

.chart-container h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.chart-container canvas {
    max-height: 300px;
}

/* Table */
.table-wrapper {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table thead {
    background: var(--surface-alt);
    border-bottom: 2px solid var(--border-color);
}

.data-table th,
.data-table td {
    white-space: nowrap;
}

.data-table th {
    padding: 14px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 14px;
    border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr {
    transition: background-color 0.2s;
}

.data-table tbody tr:hover {
    background-color: var(--bg-light);
}

.data-table tr.high-confidence {
    background: #fff4dc;
}

.event-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.event-badge.footstep {
    background: #dbeafe;
    color: #1e40af;
}

.event-badge.vehicle {
    background: #dcfce7;
    color: #15803d;
}

.event-badge.impact {
    background: #fee2e2;
    color: #991b1b;
}

/* Alarms List */
.alarms-list {
    max-height: 400px;
    overflow-y: auto;
}

.alarm-item {
    padding: 15px;
    border-left: 4px solid var(--primary-color);
    background: var(--bg-light);
    border-radius: 8px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: start;
}

.alarm-item.critical {
    border-left-color: var(--danger-color);
    background: #fee2e2;
}

.alarm-item.high {
    border-left-color: var(--warning-color);
    background: #fef3c7;
}

.alarm-item.medium {
    border-left-color: #3b82f6;
    background: #dbeafe;
}

.alarm-info {
    flex: 1;
}

.alarm-type {
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 4px;
}

.alarm-time {
    font-size: 12px;
    color: var(--text-secondary);
}

.alarm-status {
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 9999px;
    background: white;
    border: 1px solid var(--border-color);
}

.alarm-status.acknowledged {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

/* Settings Panel */
.settings-panel {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 200;
    animation: fadeIn 0.2s ease;
}

.settings-panel.open {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.settings-content {
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 500px;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px;
    border-bottom: 1px solid var(--border-color);
}

.settings-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--secondary-color);
}

.close-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    color: var(--text-primary);
}

.settings-body {
    padding: 25px;
}

.setting-group {
    margin-bottom: 25px;
}

.setting-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

.setting-group input[type="number"],
.setting-group input[type="text"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
}

.setting-group input[type="number"]:focus,
.setting-group input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.12);
}

.setting-group input[type="checkbox"] {
    margin-right: 8px;
    cursor: pointer;
}

.setting-group small {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.setting-actions {
    display: flex;
    gap: 10px;
    margin-top: 25px;
}

.setting-actions .btn {
    flex: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .main-content {
        padding: 15px;
    }

    .metrics-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .charts-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .scores-grid {
        grid-template-columns: 1fr;
    }

    .telemetry-strip {
        grid-template-columns: 1fr 1fr;
    }

    .telemetry-wide {
        grid-column: span 2;
    }

    .section {
        padding: 15px;
    }

    .data-table {
        font-size: 12px;
    }

    .data-table th,
    .data-table td {
        padding: 10px;
    }

    .alarm-count {
        grid-template-columns: 1fr;
    }
}