/* ============================================================
   COMPONENTS — Reusable UI Elements
   ============================================================ */

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    line-height: 1.4;
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

.btn-primary:hover {
    background: var(--color-cta-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
}

.btn-secondary:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--color-primary-light);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--bg-surface-alt);
    color: var(--text-primary);
}

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

.btn-danger:hover {
    background: #DC2626;
    transform: translateY(-1px);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

/* ── Cards ── */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all var(--transition-base);
}

.card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow-md);
}

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

.card-header h3,
.card-header h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.card-body {
    flex: 1;
}

/* ── KPI Cards ── */
.kpi-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.kpi-card--primary::before {
    background: var(--color-primary);
}

.kpi-card--success::before {
    background: var(--color-success);
}

.kpi-card--warning::before {
    background: var(--color-warning);
}

.kpi-card--danger::before {
    background: var(--color-danger);
}

.kpi-card--info::before {
    background: var(--color-info);
}

.kpi-card:hover {
    border-color: var(--border-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.kpi-card--primary:hover {
    box-shadow: var(--shadow-glow-primary);
}

.kpi-card--success:hover {
    box-shadow: var(--shadow-glow-success);
}

.kpi-card--danger:hover {
    box-shadow: var(--shadow-glow-danger);
}

.kpi-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.kpi-icon svg {
    width: 22px;
    height: 22px;
}

.kpi-icon--primary {
    background: rgba(59, 130, 246, 0.15);
    color: var(--color-primary);
}

.kpi-icon--success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
}

.kpi-icon--warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
}

.kpi-icon--danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
}

.kpi-icon--info {
    background: rgba(6, 182, 212, 0.15);
    color: var(--color-info);
}

.kpi-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: var(--space-xs);
}

.kpi-value {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.1;
    margin-bottom: var(--space-sm);
}

.kpi-change {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.kpi-change--up {
    color: var(--color-success);
    background: rgba(16, 185, 129, 0.1);
}

.kpi-change--down {
    color: var(--color-danger);
    background: rgba(239, 68, 68, 0.1);
}

/* ── Status Badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
}

.badge-info {
    background: rgba(6, 182, 212, 0.15);
    color: var(--color-info);
}

.badge-primary {
    background: rgba(59, 130, 246, 0.15);
    color: var(--color-primary);
}

.badge-neutral {
    background: rgba(100, 116, 139, 0.15);
    color: var(--text-secondary);
}

/* Status dot */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    position: relative;
}

.status-dot--online {
    background: var(--color-success);
    box-shadow: 0 0 6px var(--color-success);
}

.status-dot--online::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-success);
    animation: ripple 2s infinite;
}

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

.status-dot--idle {
    background: var(--color-warning);
}

/* ── Tables ── */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table thead th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-surface-alt);
    position: sticky;
    top: 0;
    z-index: 1;
}

.data-table thead th:first-child {
    border-radius: var(--radius-md) 0 0 0;
}

.data-table thead th:last-child {
    border-radius: 0 var(--radius-md) 0 0;
}

.data-table tbody td {
    padding: 12px 16px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.data-table tbody tr {
    cursor: pointer;
}

.data-table tbody tr:hover td {
    background: var(--bg-surface-alt);
    color: var(--text-primary);
}

/* ── Progress Bar ── */
.progress-bar {
    height: 6px;
    background: var(--bg-surface-alt);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar__fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 1s ease;
}

.progress-bar__fill--primary {
    background: var(--color-primary);
}

.progress-bar__fill--success {
    background: var(--color-success);
}

.progress-bar__fill--warning {
    background: var(--color-warning);
}

.progress-bar__fill--danger {
    background: var(--color-danger);
}

/* ── Activity Feed Item ── */
.feed-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
    cursor: pointer;
}

.feed-item:hover {
    background: var(--bg-surface-alt);
}

.feed-item__icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feed-item__icon svg {
    width: 18px;
    height: 18px;
}

.feed-item__content {
    flex: 1;
    min-width: 0;
}

.feed-item__title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.feed-item__meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ── Severity Tags ── */
.severity-critical {
    color: var(--color-danger);
    font-weight: 700;
}

.severity-high {
    color: var(--color-warning);
    font-weight: 600;
}

.severity-medium {
    color: var(--color-info);
    font-weight: 500;
}

.severity-low {
    color: var(--text-secondary);
}

/* ── Charts Container ── */
.chart-container {
    position: relative;
    width: 100%;
    padding: var(--space-md);
}

.chart-container canvas {
    max-width: 100%;
}

/* ── Map Container ── */
.map-container {
    width: 100%;
    height: 400px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.map-container .leaflet-container {
    height: 100%;
    width: 100%;
    background: var(--bg-primary);
}

/* ── Tabs ── */
.tabs {
    display: flex;
    gap: 2px;
    background: var(--bg-surface-alt);
    border-radius: var(--radius-md);
    padding: 3px;
}

.tab {
    flex: 1;
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
}

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

.tab.active {
    background: var(--bg-surface);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

/* ── Search Input ── */
.search-box {
    position: relative;
    width: 100%;
    max-width: 320px;
}

.search-box svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
}

.search-box input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.875rem;
    transition: border-color var(--transition-base);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* ── Notification Bell ── */
.notification-bell {
    position: relative;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-md);
    transition: background var(--transition-base);
}

.notification-bell:hover {
    background: var(--bg-surface-alt);
}

.notification-bell svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
}

.notification-count {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    background: var(--color-danger);
    color: white;
    font-size: 0.625rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--bg-primary);
}

/* ── Avatar ── */
.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
}

/* ── Tooltip ── */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 12px;
    background: var(--bg-surface-alt);
    color: var(--text-primary);
    font-size: 0.75rem;
    white-space: nowrap;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

[data-tooltip]:hover::after {
    opacity: 1;
}