:root {
  --bg: #0d1117;
  --bg2: #161b22;
  --bg3: #21262d;
  --sidebar-bg: #0b1020;
  --border: #21262d;
  --accent: #58a6ff;
  --danger: #ff2a5a;
  --warning: #e3b341;
  --success: #3fb950;
  --text: #e6edf3;
  --subtext: #8b949e;
  --kev-bg: #1a0a00;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

/* =====================================================================
   App Layout
   ===================================================================== */
.app-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* =====================================================================
   Sidebar
   ===================================================================== */
.sidebar {
  width: 220px;
  min-width: 220px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 14px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: background .15s;
}
.sidebar-logo:hover { background: var(--bg3); }
.sidebar-logo img { height: 32px; width: 32px; object-fit: contain; }
.logo-text  { color: var(--text); font-weight: 700; font-size: 15px; letter-spacing: -0.01em; }

.nav-list {
  list-style: none;
  padding: 12px 0;
  flex: 1;
}

.nav-item a {
  display: block;
  padding: 10px 20px;
  color: var(--subtext);
  text-decoration: none;
  border-radius: 6px;
  margin: 2px 8px;
  transition: background 0.15s, color 0.15s;
  font-size: 13px;
}

.nav-item a:hover {
  background: var(--bg3);
  color: var(--text);
}

.nav-item.active a {
  background: var(--bg3);
  color: var(--accent);
}

.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
}

.logout-btn {
  width: 100%;
  background: none;
  border: 1px solid var(--border);
  color: var(--subtext);
  padding: 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  transition: border-color 0.15s, color 0.15s;
}

.logout-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
}

/* =====================================================================
   Main Content
   ===================================================================== */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

.top-bar {
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--sidebar-bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.page-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.user-badge {
  background: var(--bg3);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  color: var(--subtext);
}

.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 28px 32px;
}

/* =====================================================================
   Flash Messages
   ===================================================================== */
.flash {
  padding: 12px 20px;
  margin: 12px 0;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
}

.flash-error {
  background: rgba(255, 42, 90, 0.1);
  border: 1px solid var(--danger);
  color: var(--danger);
}

.flash-success {
  background: rgba(63, 185, 80, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
}

/* =====================================================================
   Stat Cards
   ===================================================================== */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

.stat-card.critical { border-left: 3px solid var(--danger); }
.stat-card.high     { border-left: 3px solid #ff7b72; }
.stat-card.kev      { border-left: 3px solid var(--warning); }
.stat-card.assets   { border-left: 3px solid var(--accent); }

.stat-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--subtext);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--text);
}

/* =====================================================================
   Section
   ===================================================================== */
.section {
  margin-bottom: 32px;
}

.section h2 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text);
}

/* =====================================================================
   Data Table
   ===================================================================== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg2);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.data-table th {
  background: var(--bg3);
  color: var(--subtext);
  text-align: left;
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid rgba(33, 38, 45, 0.8);
  vertical-align: middle;
}

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

.data-table tbody tr:hover td {
  background: rgba(88, 166, 255, 0.04);
}

/* =====================================================================
   Badges
   ===================================================================== */
.badge {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 800;
  margin: 0 2px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge.kev      { background: rgba(227,179,65,0.2);  color: var(--warning); border: 1px solid var(--warning); }
.badge.rce      { background: rgba(255,42,90,0.15);  color: var(--danger);  border: 1px solid var(--danger);  }
.badge.lpe      { background: rgba(255,42,90,0.10);  color: #ff7b72;        border: 1px solid #ff7b72;        }
.badge.critical { background: rgba(255,42,90,0.15);  color: var(--danger);  }
.badge.high     { background: rgba(255,123,114,0.15); color: #ff7b72;       }
.badge.medium   { background: rgba(227,179,65,0.15); color: var(--warning); }
.badge.low      { background: rgba(139,148,158,0.15); color: var(--subtext);}
.badge.patch    { background: rgba(63, 185, 80, 0.15); color: var(--success); border: 1px solid var(--success); }

/* =====================================================================
   Bundle / Findings View
   ===================================================================== */
.bundle-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bundle-item {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.bundle-item.has-kev {
  background: var(--kev-bg);
  border-color: rgba(227, 179, 65, 0.4);
}

.bundle-summary {
  padding: 12px 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  list-style: none;
  font-weight: 600;
}

.bundle-summary::-webkit-details-marker { display: none; }

.bundle-summary::before {
  content: '▶';
  font-size: 10px;
  color: var(--subtext);
  transition: transform 0.15s;
  flex-shrink: 0;
}

details[open] .bundle-summary::before {
  transform: rotate(90deg);
}

.pkg-name {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  color: var(--accent);
  min-width: 180px;
  font-size: 13px;
}

.host-badge {
  background: var(--bg3);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  color: var(--subtext);
  flex-shrink: 0;
}

.cve-count {
  color: var(--warning);
  font-weight: 700;
  font-size: 13px;
}

.epss {
  color: var(--subtext);
  font-size: 12px;
}

.bundle-cve-table {
  width: 100%;
  border-collapse: collapse;
}

.bundle-cve-table td {
  padding: 8px 20px 8px 36px;
  border-top: 1px solid rgba(33, 38, 45, 0.5);
  font-size: 12px;
}

.cve-id {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  color: #79c0ff;
  text-decoration: none;
}

.cve-id:hover { text-decoration: underline; }

/* =====================================================================
   Sentinel Hits
   ===================================================================== */
.sentinel-item {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 8px;
}

.sentinel-item.unread {
  border-left: 3px solid var(--accent);
}

.sentinel-item.pinned {
  border-left: 3px solid var(--warning);
}

.sentinel-title a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
}

.sentinel-title a:hover { color: var(--accent); }

.sentinel-meta {
  font-size: 11px;
  color: var(--subtext);
  margin-top: 4px;
}

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

.auth-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 400px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.auth-card h1 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text);
}

.auth-card .subtitle {
  color: var(--subtext);
  margin-bottom: 32px;
  font-size: 13px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--subtext);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.15s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent);
}

.btn-primary {
  width: 100%;
  background: var(--accent);
  color: #0d1117;
  padding: 12px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover  { background: #79c0ff; }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.qr-container {
  text-align: center;
  margin: 20px 0;
  background: white;
  padding: 16px;
  border-radius: 8px;
}

.qr-container img { max-width: 200px; }

.secret-text {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  background: var(--bg3);
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 12px;
  word-break: break-all;
  margin: 12px 0;
  color: var(--text);
  border: 1px solid var(--border);
}

/* =====================================================================
   Loading / Spinner
   ===================================================================== */
.loading {
  color: var(--subtext);
  padding: 40px;
  text-align: center;
}

.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* =====================================================================
   Responsive
   ===================================================================== */
@media (max-width: 900px) {
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .sidebar { display: none; }
  .content-area { padding: 16px; }
}