/* XAPP Web App Styles */

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

:root {
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --text-dark: #111827;
  --text-medium: #374151;
  --text-light: #6b7280;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --border-color: #e5e7eb;
  --border-light: #f3f4f6;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  min-height: 100vh;
}

/* Header */
.header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 2.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.75rem;
  font-weight: bold;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  cursor: pointer;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-link {
  color: var(--text-medium);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
}

.nav-link:hover {
  color: var(--primary-color);
  background: var(--bg-light);
}

.nav-link.active {
  color: var(--primary-color);
  background: rgba(102, 126, 234, 0.1);
}

/* Connect Wallet Button */
#connect-wallet {
  background: var(--primary-gradient);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  font-size: 0.95rem;
}

#connect-wallet:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

#connect-wallet.connected {
  background: var(--success-color);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem;
}

/* Page Title */
.page-title {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

/* Cards */
.card {
  background: var(--bg-white);
  border-radius: 0.75rem;
  padding: 2rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  margin-bottom: 1.5rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card-clickable {
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.card-clickable:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  border-color: var(--primary-color);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.card-desc {
  color: var(--text-light);
  font-size: 0.95rem;
}

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

.card-primary .card-title,
.card-primary .card-desc {
  color: white;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-medium);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-group small {
  display: block;
  margin-top: 0.25rem;
  color: var(--text-light);
  font-size: 0.85rem;
}

/* Radio Groups */
.radio-group {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.radio-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-weight: normal;
}

.radio-group input[type="radio"] {
  width: auto;
}

/* Buttons */
.btn {
  background: var(--primary-gradient);
  color: white;
  border: none;
  padding: 0.875rem 1.75rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  display: inline-block;
  text-decoration: none;
  text-align: center;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--bg-light);
  color: var(--text-medium);
  box-shadow: none;
}

.btn-secondary:hover {
  background: var(--border-color);
  box-shadow: none;
}

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

.btn-danger:hover {
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-group {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Tables */
table {
  width: 100%;
  background: var(--bg-white);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

table thead {
  background: var(--bg-light);
}

table th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-medium);
  border-bottom: 1px solid var(--border-color);
}

table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-light);
}

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

table tr:hover {
  background: var(--bg-light);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success {
  background: #d1fae5;
  color: #065f46;
}

.badge-warning {
  background: #fef3c7;
  color: #92400e;
}

.badge-danger {
  background: #fee2e2;
  color: #991b1b;
}

/* Filters */
.filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--bg-white);
  border-radius: 0.75rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.filter-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-light);
}

.filter-group input,
.filter-group select {
  width: 100%;
  padding: 0.625rem;
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  font-size: 0.9rem;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 0.625rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--border-color);
}

.tab {
  background: none;
  border: none;
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  color: var(--text-light);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s;
}

.tab:hover {
  color: var(--text-medium);
}

.tab.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

/* Loading */
.loading {
  text-align: center;
  padding: 3rem;
  color: var(--text-light);
}

.loading::after {
  content: '...';
  animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
  0%, 20% { content: '.'; }
  40% { content: '..'; }
  60%, 100% { content: '...'; }
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-light);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-medium);
}

/* Alerts */
.alert {
  padding: 1rem 1.25rem;
  border-radius: 0.5rem;
  margin-bottom: 1.5rem;
}

.alert-warning {
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

.alert-info {
  background: #dbeafe;
  color: #1e40af;
  border: 1px solid #bfdbfe;
}

.alert-success {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--bg-white);
  border-radius: 0.75rem;
  padding: 2rem;
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-header h2 {
  font-size: 1.5rem;
  color: var(--text-dark);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-light);
  padding: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: var(--text-dark);
}

/* Responsive */
@media (max-width: 768px) {
  .header {
    padding: 1rem 1.25rem;
  }

  .nav {
    display: none;
  }

  .container {
    padding: 1.5rem 1rem;
  }

  .page-title {
    font-size: 1.5rem;
  }

  .card {
    padding: 1.5rem;
  }

  .filters {
    grid-template-columns: 1fr;
  }

  table {
    font-size: 0.85rem;
  }

  table th,
  table td {
    padding: 0.75rem;
  }
}

/* Utility Classes */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.hidden { display: none; }