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

:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --secondary: #10b981;
  --background: #f3f4f6;
  --surface: #ffffff;
  --text-main: #111827;
  --text-muted: #6b7280;
  --danger: #ef4444;
  --warning: #f59e0b;
  --safe: #10b981;
  --border: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --radius: 12px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background-color: var(--background);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4 {
  color: var(--text-main);
  font-weight: 600;
}

/* Authentication Page Wrapper */
.auth-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #e0e7ff 0%, #f3f4f6 100%);
  padding: 20px;
}

.auth-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  text-align: center;
  transition: transform 0.3s ease;
}

.auth-card img.logo {
  width: 64px;
  margin-bottom: 20px;
}

.auth-card h2 {
  margin-bottom: 10px;
  font-size: 24px;
}

.auth-card p {
  color: var(--text-muted);
  margin-bottom: 30px;
  font-size: 14px;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.btn {
  display: inline-block;
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}

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

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

.btn-primary:active {
  transform: scale(0.98);
}

.auth-links {
  margin-top: 20px;
  font-size: 14px;
}

.auth-links a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  cursor: pointer;
}

.auth-links a:hover {
  text-decoration: underline;
}

/* Layout for Internal Pages */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 250px;
  background-color: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 24px 0;
  box-shadow: var(--shadow-sm);
  position: fixed;
  height: 100vh;
}

.sidebar-header {
  padding: 0 24px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-header h2 {
  font-size: 18px;
  color: var(--primary);
}

.nav-links {
  list-style: none;
  flex: 1;
}

.nav-links li {
  margin-bottom: 8px;
  padding: 0 16px;
}

.nav-links a {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.2s;
}

.nav-links a:hover, .nav-links a.active {
  background-color: #e0e7ff;
  color: var(--primary);
}

.main-content {
  flex: 1;
  margin-left: 250px;
  padding: 32px 48px;
}

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

.header-title h1 {
  font-size: 28px;
  margin-bottom: 4px;
}

.header-title p {
  color: var(--text-muted);
}

.logout-btn {
  background: white;
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s;
}
.logout-btn:hover {
  background: var(--background);
}

/* Dashboard Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--surface);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stat-info h3 {
  font-size: 14px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.stat-info p {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-main);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.icon-safe { background: #d1fae5; color: var(--safe); }
.icon-risk { background: #fef3c7; color: var(--warning); }
.icon-danger { background: #fee2e2; color: var(--danger); }
.icon-primary { background: #e0e7ff; color: var(--primary); }

/* Data Tables & Lists */
.card-panel {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  margin-bottom: 24px;
}

.card-title {
  font-size: 18px;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.table-responsive {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background-color: #f9fafb;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 14px;
}

td {
  font-size: 15px;
}

.badge {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}
.badge.safe { background: #d1fae5; color: #065f46; }
.badge.warning { background: #fef3c7; color: #92400e; }
.badge.danger { background: #fee2e2; color: #b91c1c; }

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--surface);
  border-radius: var(--radius);
  width: 100%;
  max-width: 500px;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-backdrop.active .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.close-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-muted);
}

.btn-secondary {
  background: white;
  color: var(--text-main);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--background); }

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }

/* Alert messages */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
  display: none;
}
.alert.success { background: #d1fae5; color: #065f46; display: block; }
.alert.error { background: #fee2e2; color: #b91c1c; display: block; }