/* ============================================================
   Cornkamwi ServerGuard AI — Design System (Light Theme)
   Aesthetic: clean light command-center, soft gray surfaces with
   colorful accent cards (blue/green/orange/red/purple/teal) matching
   the brand logo's blue + green identity.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
    /* Surfaces */
    --bg-base: #f4f6fb;
    --bg-panel: #ffffff;
    --bg-panel-raised: #f8fafc;
    --bg-panel-hover: #f1f4f9;
    --border-subtle: #e6e9f1;
    --border-strong: #d7dce8;

    /* Brand */
    --brand-navy: #0f1f4d;
    --brand-blue: #2563eb;
    --brand-blue-bright: #3b82f6;
    --brand-green: #16a34a;
    --brand-green-bright: #22c55e;

    /* Status */
    --status-critical: #dc2626;
    --status-high: #ea580c;
    --status-medium: #ca8a04;
    --status-low: #0284c7;
    --status-ok: #16a34a;
    --status-offline: #64748b;

    /* Card accent palette - each a [text, bg-wash] pair */
    --accent-blue: #2563eb;     --accent-blue-bg: #eaf1ff;
    --accent-green: #16a34a;    --accent-green-bg: #eafbf1;
    --accent-orange: #ea580c;   --accent-orange-bg: #fff1e8;
    --accent-red: #dc2626;      --accent-red-bg: #fdeded;
    --accent-purple: #7c3aed;   --accent-purple-bg: #f4eefe;
    --accent-teal: #0d9488;     --accent-teal-bg: #e9faf7;
    --accent-amber: #ca8a04;    --accent-amber-bg: #fdf6e3;

    /* Text */
    --text-primary: #111827;
    --text-secondary: #4b5566;
    --text-muted: #8a93a6;

    /* Type */
    --font-display: 'Manrope', sans-serif;
    --font-mono: 'Space Mono', monospace;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;

    --shadow-card: 0 1px 2px rgba(17,24,39,0.04), 0 4px 16px -6px rgba(17,24,39,0.08);
    --shadow-card-hover: 0 2px 4px rgba(17,24,39,0.05), 0 10px 28px -8px rgba(17,24,39,0.12);
    --shadow-panel: 0 1px 2px rgba(17,24,39,0.03), 0 6px 20px -8px rgba(17,24,39,0.06);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-display);
    -webkit-font-smoothing: antialiased;
}

/* ---------------- Layout shell ---------------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 248px;
    flex-shrink: 0;
    background: var(--bg-panel);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 22px 20px;
    border-bottom: 1px solid var(--border-subtle);
}
.sidebar-logo img { height: 34px; width: 34px; object-fit: contain; }
.sidebar-logo .wordmark { font-weight: 800; font-size: 14.5px; letter-spacing: 0.2px; line-height: 1.15; color: var(--text-primary); }
.sidebar-logo .wordmark .accent { color: var(--brand-green); }
.sidebar-logo .tagline { font-size: 9.5px; color: var(--text-muted); letter-spacing: 0.6px; text-transform: uppercase; margin-top: 2px; }

.nav-section { padding: 18px 12px 6px; }
.nav-label { font-size: 10.5px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; padding: 0 12px 8px; font-weight: 700; }

.nav-link {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px; border-radius: var(--radius-sm);
    color: var(--text-secondary); text-decoration: none;
    font-size: 13.5px; font-weight: 600; margin-bottom: 2px;
    transition: background 0.15s, color 0.15s;
}
.nav-link:hover { background: var(--bg-panel-hover); color: var(--text-primary); }
.nav-link.active {
    background: linear-gradient(90deg, rgba(37,99,235,0.10), rgba(37,99,235,0.02));
    color: var(--brand-blue);
    border-left: 2px solid var(--brand-blue-bright);
    padding-left: 10px;
}
.nav-link svg { width: 16px; height: 16px; flex-shrink: 0; }

.sidebar-footer { margin-top: auto; padding: 16px 20px; border-top: 1px solid var(--border-subtle); }
.user-chip { display: flex; align-items: center; gap: 10px; }
.logout-btn {
    margin-left: auto; display: flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; border-radius: 8px; color: var(--text-muted);
    flex-shrink: 0; transition: background 0.15s, color 0.15s;
}
.logout-btn:hover { background: rgba(220,38,38,0.1); color: var(--status-critical); }
.user-avatar {
    width: 32px; height: 32px; border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-blue), var(--brand-green));
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 13px; color: #fff;
    flex-shrink: 0;
}
.user-meta { min-width: 0; overflow: hidden; }
.user-meta .name { font-size: 13px; font-weight: 700; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-meta .role { font-size: 10.5px; color: var(--text-muted); text-transform: capitalize; }

.main-content { flex: 1; min-width: 0; }

.topbar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 28px; border-bottom: 1px solid var(--border-subtle);
    position: sticky; top: 0; background: rgba(255,255,255,0.9); backdrop-filter: blur(8px);
    z-index: 10;
}
.topbar h1 { font-size: 18px; margin: 0; font-weight: 800; letter-spacing: -0.2px; color: var(--text-primary); }
.topbar .subtitle { font-size: 12.5px; color: var(--text-muted); margin-top: 2px; }

.page-body { padding: 28px; }

/* Universal card spacing */
.panel,
.stat-card,
.card,
.dashboard-card,
.widget-card,
.metric-card,
.info-card {
    padding: 24px;
    border-radius: var(--radius-lg);
}

/* Consistent spacing between card elements */
.panel > * + *,
.stat-card > * + *,
.card > * + *,
.dashboard-card > * + *,
.widget-card > * + * {
    margin-top: 12px;
}

/* ---------------- Cards / panels ---------------- */
.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-panel);
    padding: 22px 24px;
}

/* Panels containing a table should let the table use its own cell padding
   for left/right, but still keep generous top/bottom breathing room and
   let the table bleed to the panel's padded edges rather than being
   double-inset. */
.panel.table-panel {
    padding: 6px 24px;
}
.panel h2, .panel h3 {
    margin-top: 0;
}

/* Stat grid: responsive, never forces cramped 4-up columns on narrower screens */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 20px 22px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.15s, transform 0.15s;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-height: 104px;
}
.stat-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-1px); }

.stat-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: var(--brand-blue-bright);
    opacity: 0.9;
}

.stat-card .label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    font-weight: 700;
    line-height: 1.35;
    overflow-wrap: break-word;
}
.stat-card .value {
    font-family: var(--font-mono);
    font-size: 28px;
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-primary);
}
.stat-card .delta {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.4;
    margin-top: auto;
}
.stat-card .delta a { font-weight: 700; }

/* Colorful accent variants - each gets a tinted icon-strip and matching value color */
.stat-card.accent-blue::before { background: var(--accent-blue); }
.stat-card.accent-blue .value { color: var(--accent-blue); }
.stat-card.accent-blue { background: linear-gradient(180deg, var(--accent-blue-bg) 0%, var(--bg-panel) 62%); }

.stat-card.accent-green::before { background: var(--accent-green); }
.stat-card.accent-green .value { color: var(--accent-green); }
.stat-card.accent-green { background: linear-gradient(180deg, var(--accent-green-bg) 0%, var(--bg-panel) 62%); }

.stat-card.accent-orange::before { background: var(--accent-orange); }
.stat-card.accent-orange .value { color: var(--accent-orange); }
.stat-card.accent-orange { background: linear-gradient(180deg, var(--accent-orange-bg) 0%, var(--bg-panel) 62%); }

.stat-card.accent-red::before { background: var(--accent-red); }
.stat-card.accent-red .value { color: var(--accent-red); }
.stat-card.accent-red { background: linear-gradient(180deg, var(--accent-red-bg) 0%, var(--bg-panel) 62%); }

.stat-card.accent-purple::before { background: var(--accent-purple); }
.stat-card.accent-purple .value { color: var(--accent-purple); }
.stat-card.accent-purple { background: linear-gradient(180deg, var(--accent-purple-bg) 0%, var(--bg-panel) 62%); }

.stat-card.accent-teal::before { background: var(--accent-teal); }
.stat-card.accent-teal .value { color: var(--accent-teal); }
.stat-card.accent-teal { background: linear-gradient(180deg, var(--accent-teal-bg) 0%, var(--bg-panel) 62%); }

.stat-card.accent-amber::before { background: var(--accent-amber); }
.stat-card.accent-amber .value { color: var(--accent-amber); }
.stat-card.accent-amber { background: linear-gradient(180deg, var(--accent-amber-bg) 0%, var(--bg-panel) 62%); }

/* Legacy modifiers kept for backward compatibility with any inline markup */
.stat-card.critical .value { color: var(--status-critical); }
.stat-card.critical::before { background: var(--status-critical); }
.stat-card.ok .value { color: var(--status-ok); }
.stat-card.ok::before { background: var(--status-ok); }

/* ---------------- Badges ---------------- */
.badge {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 3px 9px; border-radius: 999px;
    font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.3px;
    white-space: nowrap;
}
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex-shrink: 0; }
.badge.critical { color: var(--status-critical); background: rgba(220,38,38,0.1); }
.badge.high { color: var(--status-high); background: rgba(234,88,12,0.1); }
.badge.medium { color: var(--status-medium); background: rgba(202,138,4,0.1); }
.badge.low { color: var(--status-low); background: rgba(2,132,199,0.1); }
.badge.online, .badge.resolved, .badge.up { color: var(--status-ok); background: rgba(22,163,74,0.1); }
.badge.offline, .badge.down { color: var(--status-offline); background: rgba(100,116,139,0.12); }
.badge.unknown { color: var(--status-offline); background: rgba(100,116,139,0.08); }
.badge.warning { color: var(--status-medium); background: rgba(202,138,4,0.1); }

/* ---------------- Tables ---------------- */
table.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.data-table th {
    text-align: left; padding: 10px 16px; color: var(--text-muted);
    font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-subtle); font-weight: 700;
}
table.data-table td { padding: 13px 16px; border-bottom: 1px solid var(--border-subtle); color: var(--text-primary); }
table.data-table tr:hover td { background: var(--bg-panel-hover); }
table.data-table tr:last-child td { border-bottom: none; }
.mono { font-family: var(--font-mono); font-size: 12.5px; color: var(--text-secondary); }

/* ---------------- Forms ---------------- */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 12.5px; font-weight: 700; color: var(--text-secondary); margin-bottom: 6px; }
.form-input, .form-select {
    width: 100%; padding: 10px 13px; background: var(--bg-panel);
    border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
    color: var(--text-primary); font-size: 13.5px; font-family: var(--font-display);
}
.form-input:focus, .form-select:focus { outline: none; border-color: var(--brand-blue-bright); box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }

.btn {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 9px 16px; border-radius: var(--radius-sm);
    font-size: 13px; font-weight: 700; cursor: pointer;
    border: 1px solid transparent; text-decoration: none;
    transition: transform 0.1s, box-shadow 0.15s, background 0.15s;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: linear-gradient(135deg, var(--brand-blue), #1d4ed8); color: #fff; box-shadow: 0 4px 14px -4px rgba(37,99,235,0.45); }
.btn-primary:hover { box-shadow: 0 6px 18px -4px rgba(37,99,235,0.55); }
.btn-secondary { background: var(--bg-panel-raised); color: var(--text-primary); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--bg-panel-hover); }
.btn-danger { background: rgba(220,38,38,0.1); color: var(--status-critical); border-color: rgba(220,38,38,0.25); }
.btn-sm { padding: 6px 11px; font-size: 12px; }

.empty-state { text-align: center; padding: 48px 20px; color: var(--text-muted); }

a { color: var(--brand-blue); }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }