/* ============================================================
   Sudan Internet Health Dashboard — custom styles
   Layered on top of Bootstrap 5 dark theme
   ============================================================ */

:root {
    --bg-base:        #0d1117;
    --bg-card:        #161b22;
    --bg-card-hover:  #1c2230;
    --border:         #30363d;
    --text-primary:   #e6edf3;
    --text-muted:     #8b949e;
    --accent-blue:    #388bfd;
    --accent-green:   #3fb950;
    --accent-red:     #f85149;
    --accent-orange:  #d29922;
    --accent-purple:  #bc8cff;
}

/* Base */
body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', ui-monospace, monospace;
    font-size: 0.875rem;
}

/* Navbar */
.navbar {
    background-color: var(--bg-card) !important;
    height: 57px;
}

.brand-text {
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    font-weight: 600;
}

/* Sidebar */
.sidebar {
    background-color: var(--bg-card);
}

.sidebar .nav-link {
    color: var(--text-muted);
    font-size: 0.8rem;
    border-radius: 6px;
    padding: 0.45rem 0.75rem;
    transition: background 0.15s, color 0.15s;
}

.sidebar .nav-link:hover:not(.disabled) {
    background-color: var(--bg-card-hover);
    color: var(--text-primary);
}

.sidebar .nav-link.active {
    background-color: rgba(56, 139, 253, 0.15);
    color: var(--accent-blue);
}

.sidebar .nav-link.disabled {
    opacity: 0.45;
    pointer-events: none;
}

/* Cards */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border);
    padding: 0.6rem 1rem;
    font-size: 0.8rem;
}

/* Stat cards */
.stat-card .card-body {
    padding: 1rem 1.25rem;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.35rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

/* Alert colour variants for IODA card */
.ioda-card.has-alerts .stat-value {
    color: var(--accent-red);
}

.ioda-card.no-alerts .stat-value {
    color: var(--accent-green);
}

/* Tables */
.table {
    --bs-table-bg: transparent;
    --bs-table-hover-bg: var(--bg-card-hover);
    color: var(--text-primary);
    font-size: 0.8rem;
}

.table thead th {
    color: var(--text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
    font-weight: 500;
}

.table td {
    border-color: var(--border);
    vertical-align: middle;
}

/* Progress bar for ASN table */
.asn-bar {
    height: 4px;
    background: var(--accent-blue);
    border-radius: 2px;
    opacity: 0.6;
}

/* Badges */
.badge.text-bg-dark {
    background-color: var(--bg-base) !important;
    color: var(--text-muted) !important;
    font-weight: 400;
}

/* IODA alert list */
.list-group-item {
    background-color: transparent;
    border-color: var(--border);
    color: var(--text-primary);
    font-size: 0.8rem;
    padding: 0.6rem 1rem;
}

.alert-level-critical { border-left: 3px solid var(--accent-red); }
.alert-level-warning  { border-left: 3px solid var(--accent-orange); }
.alert-level-normal   { border-left: 3px solid var(--accent-blue); }

/* Chart empty state */
.chart-empty {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    pointer-events: none;
}

/* Spinner */
.spinner-tiny {
    width: 12px;
    height: 12px;
    border-width: 2px;
}

/* Refresh button */
#btn-refresh {
    font-size: 0.75rem;
}

/* Section headings */
section h5 {
    font-size: 0.9rem;
    letter-spacing: 0.02em;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* Active sidebar nav link — non-BGP panels */
.sidebar .nav-link.active {
    background-color: rgba(56, 139, 253, 0.15);
    color: var(--accent-blue);
}

/* ============================================================
   Light theme overrides
   ============================================================ */

[data-bs-theme="light"] {
    --bg-base:        #f6f8fa;
    --bg-card:        #ffffff;
    --bg-card-hover:  #f0f3f6;
    --border:         #d0d7de;
    --text-primary:   #1f2328;
    --text-muted:     #636c76;
    --accent-blue:    #0969da;
    --accent-green:   #1a7f37;
    --accent-red:     #cf222e;
    --accent-orange:  #9a6700;
    --accent-purple:  #8250df;
}

[data-bs-theme="light"] body {
    background-color: var(--bg-base);
    color: var(--text-primary);
}

[data-bs-theme="light"] .navbar {
    background-color: #ffffff !important;
    border-bottom-color: #d0d7de !important;
}

[data-bs-theme="light"] .brand-text,
[data-bs-theme="light"] .navbar-brand {
    color: #1f2328 !important;
}

[data-bs-theme="light"] .sidebar {
    background-color: #ffffff;
    border-right-color: #d0d7de !important;
}

[data-bs-theme="light"] .sidebar .nav-link {
    color: #636c76;
}

[data-bs-theme="light"] .sidebar .nav-link.active {
    background-color: rgba(9,105,218,0.1);
    color: #0969da;
}

[data-bs-theme="light"] .sidebar .nav-link:hover:not(.disabled) {
    background-color: #f0f3f6;
    color: #1f2328;
}

[data-bs-theme="light"] .card {
    background-color: #ffffff;
    border-color: #d0d7de;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

[data-bs-theme="light"] .card-header {
    border-bottom-color: #d0d7de;
    background-color: #f6f8fa;
}

[data-bs-theme="light"] .stat-label {
    color: #636c76;
}

[data-bs-theme="light"] .stat-value {
    color: #1f2328;
}

[data-bs-theme="light"] .table {
    --bs-table-hover-bg: #f6f8fa;
    color: #1f2328;
}

[data-bs-theme="light"] .table thead th {
    color: #636c76;
    border-bottom-color: #d0d7de;
    background-color: #f6f8fa;
}

[data-bs-theme="light"] .table td {
    border-color: #d0d7de;
}

[data-bs-theme="light"] .list-group-item {
    background-color: transparent;
    border-color: #d0d7de;
    color: #1f2328;
}

[data-bs-theme="light"] .alert-info-bar {
    background-color: rgba(9,105,218,0.05);
    border-color: rgba(9,105,218,0.2);
    color: #636c76;
}

[data-bs-theme="light"] .badge.text-bg-dark {
    background-color: #f0f3f6 !important;
    color: #636c76 !important;
    border-color: #d0d7de !important;
}

[data-bs-theme="light"] code {
    background-color: #f0f3f6;
    color: #0969da;
    padding: 0.1em 0.3em;
    border-radius: 3px;
}

[data-bs-theme="light"] #btn-refresh {
    color: #636c76;
    border-color: #d0d7de;
}

[data-bs-theme="light"] #btn-refresh:hover {
    background-color: #f0f3f6;
    color: #1f2328;
}

[data-bs-theme="light"] #theme-toggle {
    color: #636c76;
    border-color: #d0d7de;
}

[data-bs-theme="light"] .border-secondary,
[data-bs-theme="light"] .border-end {
    border-color: #d0d7de !important;
}

[data-bs-theme="light"] .text-muted {
    color: #636c76 !important;
}

[data-bs-theme="light"] .asn-bar {
    background: #0969da;
}

[data-bs-theme="light"] .chart-empty {
    color: #636c76;
}

/* ============================================================
   Outage Shutdown Timeline
   ============================================================ */

.shutdown-event {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}

.shutdown-event:last-child {
    border-bottom: none;
}

.shutdown-event:hover {
    background-color: var(--bg-card-hover);
}

.shutdown-event.ongoing {
    border-left: 3px solid var(--accent-red);
}

.shutdown-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-orange);
    flex-shrink: 0;
    margin-top: 2px;
}

.shutdown-dot.ongoing {
    background: var(--accent-red);
    box-shadow: 0 0 0 3px rgba(248,81,73,0.2);
}

/* ── Mobile responsive ───────────────────────────────────── */

@media (max-width: 767px) {

    /* Sidebar becomes a horizontal scrollable strip at the top */
    .sidebar {
        width: 100% !important;
        height: auto !important;
        position: relative !important;
        top: auto !important;
        flex-direction: row !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        border-end: none !important;
        border-bottom: 1px solid var(--border-color) !important;
        padding: 0.4rem 0.5rem !important;
    }

    .sidebar .nav {
        flex-direction: row !important;
        flex-wrap: nowrap !important;
        gap: 0.25rem !important;
        width: max-content;
    }

    .sidebar .nav-item {
        flex-shrink: 0;
    }

    .sidebar .nav-link {
        padding: 0.3rem 0.7rem !important;
        font-size: 0.78rem !important;
        white-space: nowrap;
    }

    /* Move refresh button inline on mobile */
    .sidebar .mt-auto {
        margin-left: 0.5rem !important;
        padding-top: 0 !important;
        border-top: none !important;
        flex-shrink: 0;
        align-self: center;
    }

    .sidebar .mt-auto .btn {
        white-space: nowrap;
        font-size: 0.78rem;
        padding: 0.3rem 0.6rem;
    }

    /* Reduce main content padding on mobile */
    main {
        padding: 1rem !important;
    }

    /* Stat cards — 2 per row on mobile already handled by col-6 */

    /* Charts — reduce height on mobile */
    .card-body[style*="height:220px"] { height: 180px !important; }
    .card-body[style*="height:200px"] { height: 160px !important; }

    /* Tables — allow horizontal scroll */
    .table-responsive {
        font-size: 0.8rem;
    }

    /* Navbar — shrink brand text */
    .brand-text {
        font-size: 0.9rem;
    }

    /* Summary bar — smaller pills */
    #summary-bar .badge {
        font-size: 0.65rem;
    }

    /* Countdown — hide on very small screens */
    #poll-countdown,
    #poll-progress {
        display: none !important;
    }
}

/* Tablet — slightly narrower sidebar */
@media (min-width: 768px) and (max-width: 991px) {
    .sidebar {
        width: 160px !important;
    }

    .sidebar .nav-link {
        font-size: 0.82rem;
        padding: 0.4rem 0.6rem;
    }
}

/* ── Navbar mobile fixes ─────────────────────────────────── */
@media (max-width: 480px) {
    .navbar {
        height: auto !important;
        min-height: 50px;
        padding: 0.3rem 0;
    }

    .brand-text {
        font-size: 0.82rem !important;
    }

    /* Summary bar — allow wrapping, don't overflow */
    #summary-bar {
        font-size: 0.65rem;
        row-gap: 0.25rem;
    }

    #summary-bar .badge {
        font-size: 0.62rem;
        padding: 0.2em 0.45em;
    }
}