:root {
  --black-forest: #002707;
  --floral-white: #F7F4EB;
  --amber-honey: #DF9F15;
  --coffee-bean: #1F1102;
  --azure-mist: #E1F0F4;
  --white: #FFFFFF;
  --error-red: #D32F2F;
  --success-green: #388E3C;
  --sage-green: rgb(107, 142, 127);
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--coffee-bean);
  background: var(--white);
}

/* --- Navbar --- */

.navbar {
  background: var(--black-forest);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar .logo {
  color: var(--floral-white);
  text-decoration: none;
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.navbar .logo span {
  opacity: 0.7;
  font-weight: 400;
  font-size: 0.9rem;
}

.navbar .nav-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.navbar .nav-link {
  color: var(--floral-white);
  text-decoration: none;
  font-size: 0.9rem;
  opacity: 0.8;
  transition: opacity 0.3s;
}

.navbar .nav-link:hover { opacity: 1; }

.btn-logout {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--floral-white);
  padding: 6px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.3s;
}

.btn-logout:hover { background: rgba(255,255,255,0.1); }

/* --- Layout --- */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.page-content {
  padding: var(--spacing-xl) 0;
  min-height: calc(100vh - 64px);
}

/* --- Login page --- */

.login-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 64px);
  background: linear-gradient(135deg, var(--floral-white) 0%, var(--white) 100%);
}

.login-card {
  background: var(--white);
  border: 1px solid #e0ddd6;
  border-radius: 8px;
  padding: var(--spacing-xl);
  width: 100%;
  max-width: 400px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.login-card h1 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
}

.login-card p {
  color: #666;
  margin-bottom: var(--spacing-lg);
  font-size: 0.9rem;
}

.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.form-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d0cdc6;
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.3s;
}

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

.btn-primary {
  width: 100%;
  padding: 12px;
  background: var(--black-forest);
  color: var(--floral-white);
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.3s;
  margin-top: var(--spacing-sm);
}

.btn-primary:hover { opacity: 0.9; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.error-message {
  color: var(--error-red);
  font-size: 0.85rem;
  margin-top: var(--spacing-xs);
  display: none;
}
.success-message {
  color: var(--sage-green);
  font-size: 0.85rem;
  margin-top: var(--spacing-xs);
  display: none;
}

/* --- Dashboard --- */

.page-header {
  margin-bottom: var(--spacing-lg);
}

.page-header h1 {
  font-size: 1.75rem;
  margin-bottom: 4px;
}

.page-header .subtitle {
  color: #666;
  font-size: 0.95rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.card {
  background: var(--white);
  border: 1px solid #e0ddd6;
  border-radius: 8px;
  padding: var(--spacing-md);
}

.card h2 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.card h2 .icon {
  width: 20px;
  height: 20px;
  opacity: 0.6;
}

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-active { background: #e8f5e9; color: var(--success-green); }
.badge-expired { background: #fbe9e7; color: var(--error-red); }
.badge-revoked { background: #f5f5f5; color: #666; }
.badge-pilot { background: var(--azure-mist); color: var(--black-forest); }

.license-key {
  background: var(--floral-white);
  border: 1px solid #e0ddd6;
  border-radius: 6px;
  padding: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
  word-break: break-all;
  position: relative;
  margin-bottom: var(--spacing-sm);
}

.license-key .key-text {
  display: block;
  max-height: 60px;
  overflow: hidden;
}

.btn-copy {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--white);
  border: 1px solid #d0cdc6;
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: background 0.3s;
}

.btn-copy:hover { background: var(--azure-mist); }
.btn-copy.copied { background: var(--success-green); color: white; border-color: var(--success-green); }

.info-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid #f0ede6;
  font-size: 0.9rem;
}

.info-row:last-child { border-bottom: none; }
.info-row .label { color: #666; }
.info-row .value { font-weight: 500; }

/* --- Code blocks --- */

.code-block {
  background: #1a1a2e;
  color: #e0e0e0;
  border-radius: 6px;
  padding: var(--spacing-sm);
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  overflow-x: auto;
  position: relative;
  margin-bottom: var(--spacing-sm);
}

.code-block .btn-copy {
  top: 8px;
  right: 8px;
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  color: #ccc;
}

.code-block .btn-copy:hover { background: rgba(255,255,255,0.2); }

/* --- Admin panel --- */

.admin-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.btn-action {
  padding: 8px 20px;
  background: var(--black-forest);
  color: var(--floral-white);
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.3s;
}

.btn-action:hover { opacity: 0.9; }

.btn-secondary {
  padding: 6px 14px;
  background: transparent;
  border: 1px solid #d0cdc6;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.3s;
}

.btn-secondary:hover { background: var(--floral-white); }

.btn-danger {
  color: var(--error-red);
  border-color: var(--error-red);
}

.btn-danger:hover { background: #fbe9e7; }

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

th, td {
  text-align: left;
  padding: 12px var(--spacing-sm);
  border-bottom: 1px solid #e0ddd6;
  font-size: 0.9rem;
}

th {
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #666;
}

tr:hover td { background: var(--floral-white); }

/* --- Modal --- */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal {
  background: var(--white);
  border-radius: 8px;
  padding: var(--spacing-lg);
  width: 100%;
  max-width: 480px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}

.modal h2 { margin-bottom: var(--spacing-md); }

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-md);
}

/* --- Loading --- */

.loading {
  text-align: center;
  padding: var(--spacing-xl);
  color: #999;
}

.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid #e0ddd6;
  border-top-color: var(--sage-green);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* --- Responsive --- */

@media (max-width: 768px) {
  .cards { grid-template-columns: 1fr; }
  .admin-toolbar { flex-direction: column; gap: var(--spacing-sm); }
  table { font-size: 0.8rem; }
  th, td { padding: 8px; }
}