:root {
  --bg: #f9fafb;
  --surface: #ffffff;
  --border: #e5e7eb;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --danger: #ef4444;
  --warning: #f59e0b;
  --success: #10b981;
  --radius: 8px;
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
}

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

.sidebar {
  width: 240px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.main-content {
  flex: 1;
  padding: 32px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* Typography */
h1 { font-size: 24px; font-weight: 700; margin-bottom: 4px; }
h2 { font-size: 18px; font-weight: 600; margin-bottom: 16px; }
h3 { font-size: 14px; font-weight: 600; text-transform: uppercase; color: var(--text-secondary); letter-spacing: 0.05em; margin-bottom: 12px; }
.text-muted { color: var(--text-secondary); font-size: 14px; }

/* Components */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

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

.stat-value {
  font-size: 28px;
  font-weight: 700;
  margin: 8px 0;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Nav */
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  text-decoration: none;
  color: var(--text-secondary);
  border-radius: 6px;
  font-weight: 500;
  font-size: 14px;
}

.nav-item.active {
  background: #eff6ff;
  color: var(--primary);
}

/* Table */
.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th {
  padding: 12px 16px;
  border-bottom: 2px solid var(--border);
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 600;
}

td {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 500;
}

.badge-high { background: #fee2e2; color: #991b1b; }
.badge-medium { background: #fef3c7; color: #92400e; }
.badge-low { background: #ecfdf5; color: #065f46; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover { background: var(--primary-hover); }

.btn-outline {
  background: white;
  border-color: var(--border);
  color: var(--text-primary);
}

.btn-outline:hover { background: var(--bg); }

/* Filters & Inputs */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  gap: 16px;
}

.filter-group {
  display: flex;
  gap: 12px;
}

select, input {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  background: white;
}

/* Details Page Components */
.detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.timeline {
  list-style: none;
  position: relative;
  padding-left: 24px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  margin-bottom: 20px;
}

.timeline-item::after {
  content: '';
  position: absolute;
  left: -21px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid white;
}

/* Remediation */
.remediation-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 12px;
}

.warning-box {
  background: #fffbeb;
  border: 1px solid #fcd34d;
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 24px;
  display: flex;
  gap: 12px;
  color: #92400e;
}

/* Placeholders */
.placeholder-icon {
  width: 20px;
  height: 20px;
  background: #e5e7eb;
  border-radius: 4px;
}

.logo {
  font-weight: 800;
  font-size: 18px;
  color: var(--primary);
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.annotation {
  background: #fef9c3;
  border: 1px dashed #ca8a04;
  padding: 8px 12px;
  font-size: 12px;
  color: #854d0e;
  border-radius: 4px;
  margin-top: 8px;
}