/* ============================================================
   Security Dashboard - Stylesheet
   Dark theme, accessible, no external CSS framework needed
   ============================================================ */

:root {
    --bg-0: #0b0f17;
    --bg-1: #111827;
    --bg-2: #1f2937;
    --bg-3: #2d3748;
    --border: #2d3748;
    --text: #e5e7eb;
    --text-dim: #9ca3af;
    --text-faint: #6b7280;
    --accent: #06b6d4;
    --accent-2: #3b82f6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --critical: #dc2626;
    --shadow: 0 4px 12px rgba(0, 0, 0, .4);
    --radius: 8px;
}

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

html, body {
    background: var(--bg-0);
    color: var(--text);
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
}

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

/* ---------- Layout ---------- */
.layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: var(--bg-1);
    border-right: 1px solid var(--border);
    padding: 24px 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.sidebar .brand {
    padding: 0 24px 24px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
}
.sidebar .brand h1 {
    font-size: 16px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}
.sidebar .brand small { color: var(--text-faint); font-size: 11px; }
.sidebar .brand .logo {
    width: 28px; height: 28px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.sidebar nav { padding: 0 12px; }
.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 6px;
    color: var(--text-dim);
    margin-bottom: 2px;
    font-size: 14px;
    transition: all .15s;
}
.sidebar nav a:hover {
    background: var(--bg-2);
    color: var(--text);
    text-decoration: none;
}
.sidebar nav a.active {
    background: var(--bg-2);
    color: var(--accent);
    border-left: 2px solid var(--accent);
}
.sidebar nav .section-title {
    font-size: 11px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 16px 14px 6px;
}

.main {
    padding: 24px 32px;
    overflow-x: auto;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}
.topbar h2 { font-size: 22px; }
.topbar .user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-dim);
}
.topbar .user-info .role-badge {
    padding: 3px 8px;
    background: var(--bg-2);
    border-radius: 4px;
    color: var(--accent);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .5px;
}

/* ---------- Cards ---------- */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.card {
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
}
.card .label {
    font-size: 11px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}
.card .value {
    font-size: 28px;
    font-weight: 600;
    line-height: 1;
}
.card .delta {
    font-size: 12px;
    color: var(--text-dim);
    margin-top: 8px;
}
.card.danger .value { color: var(--danger); }
.card.warning .value { color: var(--warning); }
.card.success .value { color: var(--success); }
.card.info .value { color: var(--accent); }

/* ---------- Panel / chart ---------- */
.panel {
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin-bottom: 16px;
}
.panel h3 {
    font-size: 14px;
    margin-bottom: 16px;
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.panel h3 small { color: var(--text-faint); font-size: 12px; font-weight: normal; }
.chart-wrap { position: relative; height: 280px; }

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

/* ---------- Tables ---------- */
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
table th, table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
table th {
    background: var(--bg-2);
    color: var(--text-dim);
    font-weight: 500;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .5px;
}
table tr:hover { background: rgba(255, 255, 255, 0.02); }

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

/* ---------- Forms ---------- */
.form-card {
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    max-width: 420px;
    margin: 80px auto;
    box-shadow: var(--shadow);
}
.form-card h2 {
    font-size: 22px;
    margin-bottom: 6px;
    text-align: center;
}
.form-card .sub {
    color: var(--text-dim);
    text-align: center;
    margin-bottom: 24px;
    font-size: 13px;
}
.form-row { margin-bottom: 16px; }
.form-row label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: .5px;
}
.form-row input, .form-row select, .form-row textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 14px;
    font-family: inherit;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.btn {
    display: inline-block;
    padding: 10px 18px;
    background: var(--accent);
    color: #001218;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none !important;
    font-family: inherit;
}
.btn:hover { filter: brightness(1.1); }
.btn.primary  { background: var(--accent); }
.btn.danger   { background: var(--danger); color: #fff; }
.btn.warning  { background: var(--warning); color: #1a0f00; }
.btn.success  { background: var(--success); color: #00200f; }
.btn.ghost    { background: transparent; color: var(--text-dim); border: 1px solid var(--border); }
.btn.full     { width: 100%; }
.btn.sm       { padding: 4px 10px; font-size: 12px; }

.alert-box {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 13px;
    border-left: 3px solid;
}
.alert-box.error  { background: rgba(239, 68, 68, .1);  border-color: var(--danger);  color: #fca5a5; }
.alert-box.success{ background: rgba(16, 185, 129, .1); border-color: var(--success); color: #86efac; }
.alert-box.info   { background: rgba(59, 130, 246, .1); border-color: var(--accent-2);color: #93c5fd; }
.alert-box.warning{ background: rgba(245, 158, 11, .1); border-color: var(--warning); color: #fcd34d; }

/* ---------- Tag chips ---------- */
.tag {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-family: ui-monospace, monospace;
    background: var(--bg-3);
    color: var(--text-dim);
}
.tag.threat-brute_force { background: rgba(239, 68, 68, .2);  color: #fca5a5; }
.tag.threat-rapid_fire  { background: rgba(245, 158, 11, .2); color: #fcd34d; }
.tag.threat-off_hours   { background: rgba(59, 130, 246, .2); color: #93c5fd; }
.tag.threat-insider     { background: rgba(168, 85, 247, .2); color: #d8b4fe; }
.tag.threat-none        { color: var(--text-faint); background: transparent; }

.hash {
    font-family: ui-monospace, monospace;
    font-size: 10px;
    color: var(--text-faint);
    word-break: break-all;
}

.dot {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
    margin-right: 6px;
}
.dot.live { background: var(--success); animation: pulse 2s infinite; }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .4; }
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .layout { grid-template-columns: 1fr; }
    .sidebar { position: static; height: auto; }
    .main { padding: 16px; }
}