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

/* =============================================================================
   DefenseAI — Enterprise UI Design System
   Dark theme optimized for information density and readability
   ============================================================================= */

:root {
    --bg-primary: #0a0e14;
    --bg-secondary: #12171e;
    --bg-tertiary: #1a1f28;
    --bg-elevated: #1e2530;
    --bg-hover: #242c38;
    --border: #262e3a;
    --border-light: #333d4b;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --success: #22c55e;
    --success-glow: rgba(34, 197, 94, 0.12);
    --warning: #eab308;
    --warning-glow: rgba(234, 179, 8, 0.12);
    --danger: #ef4444;
    --danger-glow: rgba(239, 68, 68, 0.12);
    --purple: #a78bfa;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.4);
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* === Sidebar === */
.sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 0;
    display: flex;
    flex-direction: column;
    position: fixed;
    width: 260px;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-logo {
    padding: 24px 24px 20px;
    border-bottom: 1px solid var(--border);
}

.sidebar-logo h1 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.sidebar-logo .subtitle {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-top: 2px;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    margin: 16px 16px 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.user-badge .username {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.user-badge .role {
    font-size: 9px;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.8px;
    display: inline-block;
    margin-top: 2px;
}

.role-analyst { background: var(--accent-glow); color: var(--accent); border: 1px solid rgba(59,130,246,0.2); }
.role-reviewer { background: var(--warning-glow); color: var(--warning); border: 1px solid rgba(234,179,8,0.2); }
.role-admin { background: rgba(167,139,250,0.12); color: var(--purple); border: 1px solid rgba(167,139,250,0.2); }

.nav-section { padding: 8px 16px; }
.nav-section-title {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 12px 8px 6px;
    font-weight: 700;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    transition: all var(--transition);
    margin-bottom: 2px;
}

.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    text-decoration: none;
}

.nav-item.active {
    background: var(--accent-glow);
    color: var(--accent);
    font-weight: 600;
}

.nav-item .icon {
    font-size: 15px;
    width: 22px;
    text-align: center;
    opacity: 0.8;
}

.sidebar-footer {
    margin-top: auto;
    padding: 20px 24px;
    border-top: 1px solid var(--border);
}

.sidebar-footer a {
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 500;
}

.sidebar-footer a:hover { color: var(--danger); }

.sidebar-footer .version {
    margin-top: 8px;
    font-size: 10px;
    color: var(--text-muted);
    opacity: 0.6;
}

/* === Main Content === */
.main-content {
    margin-left: 260px;
    padding: 32px 40px;
    min-height: 100vh;
    background: var(--bg-primary);
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.page-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

/* === Cards === */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
    border-color: var(--border-light);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.card-header h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* === Stats Grid === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    opacity: 0;
    transition: opacity var(--transition);
}

.stat-card:hover {
    border-color: var(--border-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.stat-card:hover::before { opacity: 1; }

.stat-card .label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 600;
    margin-bottom: 8px;
}

.stat-card .value {
    font-size: 32px;
    font-weight: 700;
    font-family: var(--font-mono);
    line-height: 1;
}

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

.stat-card:nth-child(1)::before { background: var(--accent); }
.stat-card:nth-child(2)::before { background: var(--warning); }
.stat-card:nth-child(3)::before { background: var(--success); }
.stat-card:nth-child(4)::before { background: var(--danger); }
.stat-card:nth-child(5)::before { background: var(--purple); }

/* === Dashboard Grid === */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
}

/* === Tables === */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 13px;
}

.data-table th {
    text-align: left;
    padding: 10px 14px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    font-weight: 700;
    background: var(--bg-tertiary);
}

.data-table th:first-child { border-radius: var(--radius) 0 0 0; }
.data-table th:last-child { border-radius: 0 var(--radius) 0 0; }

.data-table td {
    padding: 12px 14px;
    border-bottom: 1px solid rgba(38,46,58,0.5);
    color: var(--text-secondary);
    transition: all var(--transition);
}

.data-table tbody tr {
    transition: background var(--transition);
}

.data-table tbody tr:hover td {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* === Status Badges === */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border: 1px solid transparent;
}

.badge-draft { background: rgba(100,116,139,0.12); color: var(--text-muted); border-color: rgba(100,116,139,0.2); }
.badge-pending, .badge-pending_review { background: var(--warning-glow); color: var(--warning); border-color: rgba(234,179,8,0.2); }
.badge-approved { background: var(--success-glow); color: var(--success); border-color: rgba(34,197,94,0.2); }
.badge-rejected { background: var(--danger-glow); color: var(--danger); border-color: rgba(239,68,68,0.2); }
.badge-revision, .badge-revision_requested { background: rgba(167,139,250,0.12); color: var(--purple); border-color: rgba(167,139,250,0.2); }
.badge-unclassified { background: var(--success-glow); color: var(--success); border-color: rgba(34,197,94,0.2); }
.badge-confidential { background: var(--warning-glow); color: var(--warning); border-color: rgba(234,179,8,0.2); }
.badge-secret { background: var(--danger-glow); color: var(--danger); border-color: rgba(239,68,68,0.2); }

/* === Confidence Meter === */
.confidence-meter {
    display: flex;
    align-items: center;
    gap: 8px;
}

.confidence-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-elevated);
    border-radius: 2px;
    overflow: hidden;
    max-width: 60px;
}

.confidence-bar .fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s;
}

.confidence-bar .fill.high { background: var(--success); }
.confidence-bar .fill.medium { background: var(--warning); }
.confidence-bar .fill.low { background: var(--danger); }

/* === Forms === */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-select, .form-textarea, .form-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 14px;
    transition: all var(--transition);
}

.form-select:focus, .form-textarea:focus, .form-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: var(--bg-elevated);
}

.form-textarea {
    resize: vertical;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    background: var(--bg-elevated);
    color: var(--text-primary);
    white-space: nowrap;
}

.btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-light);
    text-decoration: none;
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: #fff;
    box-shadow: 0 2px 12px rgba(59,130,246,0.3);
}

.btn-success {
    background: rgba(34,197,94,0.15);
    border-color: rgba(34,197,94,0.3);
    color: var(--success);
}
.btn-success:hover { background: rgba(34,197,94,0.25); color: var(--success); }

.btn-danger {
    background: rgba(239,68,68,0.15);
    border-color: rgba(239,68,68,0.3);
    color: var(--danger);
}
.btn-danger:hover { background: rgba(239,68,68,0.25); color: var(--danger); }

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

/* === Radio buttons for review === */
.radio-group { display: flex; gap: 12px; flex-wrap: wrap; }
.radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all var(--transition);
}
.radio-group input[type="radio"] { accent-color: var(--accent); }
.radio-group label:has(input:checked) {
    border-color: var(--accent);
    background: var(--accent-glow);
    color: var(--accent);
}

/* === Findings List === */
.finding-item {
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 10px;
    background: var(--bg-tertiary);
    transition: border-color var(--transition);
}

.finding-item:hover { border-color: var(--border-light); }

.finding-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.finding-sources {
    font-size: 12px;
    color: var(--text-muted);
    font-style: italic;
}

/* === Audit Trail === */
.audit-entry {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(38,46,58,0.4);
    font-size: 13px;
}

.audit-entry:last-child { border-bottom: none; }

.audit-entry .time {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 11px;
    white-space: nowrap;
    min-width: 60px;
}

.audit-entry .action {
    font-weight: 600;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
    background: var(--accent-glow);
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.audit-entry .actor {
    color: var(--text-secondary);
    font-size: 13px;
}

/* === Messages === */
.messages { margin-bottom: 20px; }
.message {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid;
    display: flex;
    align-items: center;
    gap: 10px;
}
.message.success { background: var(--success-glow); border-color: rgba(34,197,94,0.3); color: var(--success); }
.message.warning { background: var(--warning-glow); border-color: rgba(234,179,8,0.3); color: var(--warning); }
.message.error { background: var(--danger-glow); border-color: rgba(239,68,68,0.3); color: var(--danger); }

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

.login-box {
    width: 420px;
    padding: 48px 40px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.login-box h1 {
    text-align: center;
    margin-bottom: 8px;
    font-size: 24px;
    letter-spacing: 2px;
}

.login-box .subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 12px;
    margin-bottom: 36px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.login-box .btn {
    width: 100%;
    justify-content: center;
    padding: 12px;
    font-size: 14px;
}

/* === Detail sections === */
.section { margin-bottom: 28px; }
.section-title {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    font-weight: 700;
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.detail-content {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.caveat-list {
    list-style: none;
    padding: 0;
}

.caveat-list li {
    padding: 8px 0 8px 20px;
    position: relative;
    color: var(--warning);
    font-size: 13px;
}

.caveat-list li::before {
    content: "\26A0";
    position: absolute;
    left: 0;
}

/* === Empty State === */
.empty-state {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
}

.empty-state .icon {
    font-size: 36px;
    margin-bottom: 12px;
    opacity: 0.4;
}

.empty-state p {
    max-width: 280px;
    margin: 0 auto;
    line-height: 1.6;
}

/* === Responsive === */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .dashboard-grid, .grid-2 {
        grid-template-columns: 1fr;
    }
}

/* === Scrollbar === */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

/* === Observability page === */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}