/* ============================================
   ThreatSource — Command Center Design System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    /* Surface palette — deep navy command center */
    --bg-root: #080b12;
    --bg-surface: #0d1117;
    --bg-card: #131820;
    --bg-card-hover: #181e28;
    --bg-input: #161c26;
    --bg-elevated: #1a2130;
    --border: #1e2a3a;
    --border-subtle: #162032;
    --border-focus: #3b82f6;

    /* Text */
    --text-primary: #e2e8f0;
    --text-secondary: #8b9cc0;
    --text-muted: #556882;
    --text-inverse: #080b12;

    /* Accent — electric blue command center feel */
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --accent-text: #60a5fa;

    /* Severity — vivid, unmistakable */
    --critical: #ef4444;
    --critical-bg: rgba(239, 68, 68, 0.12);
    --high: #f97316;
    --high-bg: rgba(249, 115, 22, 0.12);
    --medium: #eab308;
    --medium-bg: rgba(234, 179, 8, 0.1);
    --low: #22c55e;
    --low-bg: rgba(34, 197, 94, 0.1);
    --kev: #dc2626;
    --kev-bg: rgba(220, 38, 38, 0.12);

    /* Source badges */
    --src-nvd: #6366f1;
    --src-circl: #06b6d4;
    --src-kev: #ef4444;
    --src-osv: #8b5cf6;
    --src-cert-at: #3b82f6;
    --src-bsi: #a855f7;
    --src-cert-bund: #10b981;

    /* Typography */
    --font-sans: 'DM Sans', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Cascadia Code', monospace;

    /* Spacing scale */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 10px;

    /* Transitions */
    --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset & base ---- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-sans);
    background: var(--bg-root);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* Subtle scan-line texture on body */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.03) 2px,
        rgba(0, 0, 0, 0.03) 4px
    );
    pointer-events: none;
    z-index: 9999;
}

/* ---- Container ---- */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-lg);
}

h1 {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}
h1::before {
    content: '//';
    color: var(--accent);
    margin-right: 8px;
    font-family: var(--font-mono);
    font-weight: 400;
}

h2 {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

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

/* ---- Navbar ---- */
.navbar {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: 12px var(--space-lg);
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
}
.nav-brand {
    font-family: var(--font-mono);
    font-size: 15px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-brand::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--accent); }
    50% { opacity: 0.6; box-shadow: 0 0 16px var(--accent); }
}
.nav-links {
    display: flex;
    gap: 2px;
    flex: 1;
}
.nav-links a {
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    transition: all var(--transition);
    position: relative;
}
.nav-links a:hover {
    color: var(--text-primary);
    background: var(--bg-elevated);
}
.nav-links a.active {
    color: var(--accent-text);
    background: var(--accent-glow);
}
.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 14px;
    right: 14px;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}
.nav-user {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* ---- Cards ---- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    transition: border-color var(--transition);
}
.card:hover { border-color: var(--border-focus); }
.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-subtle);
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* ---- Stats grid ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-md);
    text-align: center;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--border);
    transition: background var(--transition);
}
.stat-card:hover { border-color: var(--border-focus); transform: translateY(-1px); }
.stat-value {
    font-family: var(--font-mono);
    font-size: 28px;
    font-weight: 600;
    line-height: 1;
}
.stat-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-top: 6px;
}
.stat-critical .stat-value { color: var(--critical); }
.stat-critical::before { background: var(--critical); }
.stat-high .stat-value { color: var(--high); }
.stat-high::before { background: var(--high); }
.stat-medium .stat-value { color: var(--medium); }
.stat-medium::before { background: var(--medium); }
.stat-low .stat-value { color: var(--low); }
.stat-low::before { background: var(--low); }
.stat-kev .stat-value { color: var(--kev); }
.stat-kev::before { background: var(--kev); }

/* ---- Sources grid ---- */
.sources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
}
.source-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    font-size: 13px;
    font-family: var(--font-mono);
}
.source-item strong { color: var(--accent-text); font-size: 12px; }

/* ---- Tables ---- */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 13px;
}
.table th {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-family: var(--font-mono);
    white-space: nowrap;
}
.table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-subtle);
    vertical-align: middle;
}
.table tr { transition: background var(--transition); }
.table tbody tr:hover { background: var(--bg-card-hover); }
.table a { color: var(--accent-text); font-weight: 500; }
.table a:hover { color: var(--accent); text-decoration: underline; }
.td-title { max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.td-muted { color: var(--text-muted); font-size: 12px; font-family: var(--font-mono); }
.td-actions { white-space: nowrap; }
.td-actions .btn { margin-right: 3px; }
.td-products { max-width: 280px; }
.td-products .badge { margin: 1px 2px; }

/* ---- Badges ---- */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    line-height: 1.6;
}
.badge-critical { background: var(--critical-bg); color: var(--critical); border: 1px solid rgba(239,68,68,0.2); }
.badge-high { background: var(--high-bg); color: var(--high); border: 1px solid rgba(249,115,22,0.2); }
.badge-medium { background: var(--medium-bg); color: var(--medium); border: 1px solid rgba(234,179,8,0.15); }
.badge-low { background: var(--low-bg); color: var(--low); border: 1px solid rgba(34,197,94,0.15); }
.badge-unknown { background: rgba(85,104,130,0.15); color: var(--text-muted); border: 1px solid rgba(85,104,130,0.2); }
.badge-product { background: var(--accent-glow); color: var(--accent-text); border: 1px solid rgba(59,130,246,0.15); text-decoration: none; text-transform: none; font-weight: 500; }
.badge-product:hover { background: rgba(59,130,246,0.25); }
.badge-eco { background: var(--low-bg); color: var(--low); text-transform: none; border: 1px solid rgba(34,197,94,0.15); }
.badge-type-hardware { background: var(--high-bg); color: var(--high); text-transform: none; border: 1px solid rgba(249,115,22,0.2); }
.badge-type-software { background: var(--accent-glow); color: var(--accent-text); text-transform: none; border: 1px solid rgba(59,130,246,0.15); }
.badge-type-os { background: var(--low-bg); color: var(--low); text-transform: none; border: 1px solid rgba(34,197,94,0.15); }
.badge-type-service { background: var(--medium-bg); color: var(--medium); text-transform: none; border: 1px solid rgba(234,179,8,0.15); }

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-elevated);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-sans);
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    white-space: nowrap;
}
.btn:hover { background: var(--bg-card-hover); border-color: var(--text-muted); color: var(--text-primary); }
.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
    font-weight: 600;
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: white; }
.btn-sm { padding: 4px 10px; font-size: 12px; border-radius: var(--radius-sm); }
.btn-full { width: 100%; }
.btn-watched { background: rgba(234,179,8,0.15); border-color: var(--medium); color: var(--medium); }
.btn-danger { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.3); color: var(--critical); }
.btn-danger:hover { background: rgba(239,68,68,0.2); }

/* ---- Forms & inputs ---- */
.form-group { margin-bottom: var(--space-md); }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}
.form-group input,
.input-search,
select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-sans);
    transition: all var(--transition);
}
.form-group input:focus,
.input-search:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
select { cursor: pointer; }
input[type="date"] { font-family: var(--font-mono); font-size: 12px; }

/* ---- Filters bar ---- */
.filters {
    display: flex;
    gap: 10px;
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    align-items: center;
    padding: var(--space-md);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}
.filters .input-search { max-width: 280px; }
.filters select { width: auto; min-width: 150px; }
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    cursor: pointer;
    color: var(--text-secondary);
}
.results-info {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
    font-family: var(--font-mono);
}

/* ---- Pagination ---- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: var(--space-lg);
    font-size: 13px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* ---- Login ---- */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: radial-gradient(ellipse at 50% 30%, rgba(59,130,246,0.08) 0%, transparent 60%);
}
.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.login-card h1 {
    font-family: var(--font-mono);
    font-size: 22px;
    color: var(--accent);
    margin-bottom: 4px;
}
.login-card h1::before { content: none; }
.login-card .subtitle {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: var(--space-xl);
    font-family: var(--font-mono);
}

/* ---- Detail pages ---- */
.detail-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}
.detail-header h1 { font-size: 20px; margin-bottom: 0; }
.detail-grid { margin-bottom: var(--space-lg); }
.detail-meta {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}
.meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 13px;
}
.meta-row:last-child { border-bottom: none; }
.meta-label { color: var(--text-muted); font-size: 12px; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.05em; }

/* ---- Settings ---- */
.setting-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-subtle);
    gap: 20px;
}
.setting-row:last-child { border-bottom: none; }
.setting-info label { font-weight: 600; font-size: 13px; font-family: var(--font-mono); }
.setting-info small { display: block; color: var(--text-muted); font-size: 12px; margin-top: 2px; }
.setting-input { display: flex; gap: 8px; align-items: center; }
.setting-input input {
    width: 300px;
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-mono);
}

/* Sync buttons */
.sync-buttons { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }

/* ---- Alerts ---- */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    font-size: 13px;
    background: var(--accent-glow);
    border: 1px solid rgba(59,130,246,0.25);
    color: var(--accent-text);
}
.alert-error {
    background: var(--critical-bg);
    border-color: rgba(239,68,68,0.25);
    color: var(--critical);
}

/* ---- Add form ---- */
.add-form { display: flex; gap: 8px; margin-top: 12px; align-items: center; }
.add-form input { flex: 1; }

/* ---- Add product form ---- */
.add-product-form {
    display: flex;
    gap: 10px;
    margin-top: 12px;
    flex-wrap: wrap;
    align-items: center;
}
.add-product-form .input-field,
.input-field {
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-sans);
    min-width: 200px;
    transition: all var(--transition);
}
.input-field:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.add-product-form select { min-width: 150px; }

/* ---- Confidence badges (search) ---- */
.badge-confidence-high { background: var(--low-bg); color: var(--low); border: 1px solid rgba(34,197,94,0.2); padding: 2px 8px; border-radius: 3px; font-size: 11px; font-weight: 600; font-family: var(--font-mono); }
.badge-confidence-medium { background: var(--medium-bg); color: var(--medium); border: 1px solid rgba(234,179,8,0.2); padding: 2px 8px; border-radius: 3px; font-size: 11px; font-weight: 600; font-family: var(--font-mono); }
.badge-confidence-low { background: rgba(85,104,130,0.15); color: var(--text-muted); border: 1px solid rgba(85,104,130,0.2); padding: 2px 8px; border-radius: 3px; font-size: 11px; font-weight: 600; font-family: var(--font-mono); }
.matched-fields { font-size: 11px; color: var(--text-muted); margin-top: 2px; font-family: var(--font-mono); }

/* ---- Advisory source badges ---- */
.badge-src-cert_at { background: rgba(59,130,246,0.12); color: #60a5fa; border: 1px solid rgba(59,130,246,0.2); }
.badge-src-bsi { background: rgba(168,85,247,0.12); color: #c084fc; border: 1px solid rgba(168,85,247,0.2); }
.badge-src-cert_bund { background: rgba(16,185,129,0.12); color: #34d399; border: 1px solid rgba(16,185,129,0.2); }
.badge-feed { background: rgba(85,104,130,0.12); color: var(--text-secondary); border: 1px solid rgba(85,104,130,0.15); text-transform: none; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .navbar { flex-wrap: wrap; padding: 10px var(--space-md); }
    .nav-links { order: 3; width: 100%; overflow-x: auto; }
    .container { padding: var(--space-md); }
    .filters { flex-direction: column; }
    .filters .input-search, .filters select { max-width: 100%; width: 100%; }
    .setting-row { flex-direction: column; align-items: flex-start; }
    .setting-input { width: 100%; }
    .setting-input input { flex: 1; }
    .add-product-form { flex-direction: column; }
    .add-product-form .input-field { min-width: 100%; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    h1 { font-size: 18px; }
}

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

/* ---- Code/monospace elements ---- */
code, .mono { font-family: var(--font-mono); font-size: 12px; }