/* ===== Monitor — Global Styles ===== */

:root {
    --bg:           #0d1117;
    --bg-card:      #161b22;
    --bg-card-hover:#1c2128;
    --border:       #30363d;
    --text:         #e6edf3;
    --text-muted:   #8b949e;
    --accent:       #58a6ff;
    --accent-glow:  rgba(88,166,255,.15);
    --success:      #3fb950;
    --danger:       #f85149;
    --warning:      #d29922;
    --info:         #79c0ff;
    --sidebar-w:    240px;
}

/* ===== Light theme ===== */
[data-theme="light"] {
    --bg:           #f6f8fa;
    --bg-card:      #ffffff;
    --bg-card-hover:#f0f3f6;
    --border:       #d0d7de;
    --text:         #1f2328;
    --text-muted:   #656d76;
    --accent:       #0969da;
    --accent-glow:  rgba(9,105,218,.1);
    --success:      #1a7f37;
    --danger:       #d1242f;
    --warning:      #9a6700;
    --info:         #0969da;
}

/* ===== Theme toggle button ===== */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 15px;
    transition: background .15s, color .15s, border-color .15s;
    padding: 0;
}
.theme-toggle:hover {
    background: var(--bg-card-hover);
    color: var(--accent);
    border-color: var(--accent);
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; }

html, body {
    height: 100%;
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    font-size: 14px;
    background: var(--bg);
    color: var(--text);
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--info); }

/* ===== Layout ===== */
.layout {
    display: flex;
    min-height: 100vh;
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-w);
    min-height: 100vh;
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    z-index: 100;
    overflow-y: auto;
}

.sidebar-brand {
    padding: 20px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: .3px;
}

.sidebar-brand .bi {
    font-size: 20px;
    color: var(--accent);
}

.sidebar-brand span.sub {
    font-size: 11px;
    font-weight: 400;
    color: var(--text-muted);
    display: block;
    margin-top: 1px;
}

.sidebar-nav {
    list-style: none;
    margin: 8px 0 0;
    padding: 0;
    flex: 1;
}

.sidebar-nav li.section-label {
    padding: 12px 16px 4px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.sidebar-nav li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    color: var(--text-muted);
    border-radius: 6px;
    margin: 1px 8px;
    transition: background .15s, color .15s;
    font-size: 13.5px;
}

.sidebar-nav li a:hover,
.sidebar-nav li a.active {
    background: var(--accent-glow);
    color: var(--accent);
}

.sidebar-nav li a .bi {
    font-size: 15px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 12px 8px;
    border-top: 1px solid var(--border);
}

.sidebar-footer a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    color: var(--text-muted);
    border-radius: 6px;
    transition: background .15s, color .15s;
    font-size: 13.5px;
}

.sidebar-footer a:hover {
    background: rgba(248,81,73,.12);
    color: var(--danger);
}

/* ===== Main content ===== */
.main-content {
    margin-left: var(--sidebar-w);
    flex: 1;
    min-width: 0;
}

.page-header {
    padding: 20px 24px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 60px;
}

.page-header h1 {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text);
}

.page-header h1 .bi {
    color: var(--accent);
}

.page-body {
    padding: 0 24px 32px;
}

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

.card-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 13px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
    background: transparent;
}

.card-header .bi { color: var(--accent); }

.card-body { padding: 16px; }

/* ===== Stat cards ===== */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: border-color .2s, background .2s;
}

.stat-card:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
}

.stat-card .label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .8px;
    color: var(--text-muted);
}

.stat-card .value {
    font-size: 26px;
    font-weight: 700;
    line-height: 1;
    color: var(--text);
}

.stat-card .value.danger  { color: var(--danger); }
.stat-card .value.success { color: var(--success); }
.stat-card .value.warning { color: var(--warning); }
.stat-card .value.accent  { color: var(--accent); }

.stat-card .icon {
    font-size: 28px;
    opacity: .25;
    position: absolute;
    right: 16px;
    top: 16px;
}

/* ===== Tables ===== */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.table th {
    padding: 10px 12px;
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .6px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    background: var(--bg);
}

.table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    vertical-align: middle;
}

.table tbody tr:hover td { background: var(--bg-card-hover); }
.table tbody tr:last-child td { border-bottom: none; }

/* ===== Badges ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}

.badge-success { background: rgba(63,185,80,.15);  color: var(--success); }
.badge-danger  { background: rgba(248,81,73,.15);  color: var(--danger);  }
.badge-warning { background: rgba(210,153,34,.15); color: var(--warning); }
.badge-info    { background: rgba(88,166,255,.15); color: var(--accent);  }
.badge-muted   { background: rgba(139,148,158,.1); color: var(--text-muted); }

/* ===== Alerts ===== */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    border-left: 3px solid;
    font-size: 13px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.alert-danger  { background: rgba(248,81,73,.08);  border-color: var(--danger);  color: var(--text); }
.alert-warning { background: rgba(210,153,34,.08); border-color: var(--warning); color: var(--text); }
.alert-success { background: rgba(63,185,80,.08);  border-color: var(--success); color: var(--text); }
.alert-info    { background: rgba(88,166,255,.08); border-color: var(--accent);  color: var(--text); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background .15s, border-color .15s, opacity .15s;
    text-decoration: none;
}

.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary  { background: var(--accent); color: #000; border-color: var(--accent); }
.btn-primary:hover { background: var(--info); border-color: var(--info); color: #000; }

.btn-danger  { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { opacity: .85; color: #fff; }

.btn-outline { background: transparent; color: var(--text-muted); border-color: var(--border); }
.btn-outline:hover { color: var(--text); border-color: var(--text-muted); background: var(--bg-card-hover); }

.btn-sm { padding: 4px 10px; font-size: 12px; }

/* ===== Forms ===== */
.form-group { margin-bottom: 16px; }

.form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
}

.form-control, .form-select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 13px;
    transition: border-color .15s;
    outline: none;
}

.form-control:focus, .form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ===== Log lines ===== */
.log-line { font-family: 'Cascadia Code', 'Fira Code', monospace; font-size: 12px; line-height: 1.6; }
.log-line.danger  { color: var(--danger); }
.log-line.warning { color: var(--warning); }
.log-line.success { color: var(--success); }
.log-line.muted   { color: var(--text-muted); }

/* ===== Status dot ===== */
.status-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

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

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ===== Login page ===== */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}

.login-box {
    width: 100%;
    max-width: 380px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 36px 32px;
}

.login-logo {
    text-align: center;
    margin-bottom: 28px;
}

.login-logo .bi {
    font-size: 42px;
    color: var(--accent);
}

.login-logo h2 {
    font-size: 20px;
    font-weight: 700;
    margin: 8px 0 0;
    color: var(--text);
}

.login-logo p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 4px 0 0;
}

/* ===== Utilities ===== */
.text-muted   { color: var(--text-muted) !important; }
.text-success { color: var(--success)    !important; }
.text-danger  { color: var(--danger)     !important; }
.text-warning { color: var(--warning)    !important; }
.text-accent  { color: var(--accent)     !important; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 24px; }
.mt-3 { margin-top: 16px; }
.mt-4 { margin-top: 24px; }

.d-flex    { display: flex; }
.gap-2     { gap: 8px; }
.gap-3     { gap: 12px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .main-content { margin-left: 0; }
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}