/* VetVisit - Privacy-first vet visit tracker */

:root {
  --primary: #10b981;
  --primary-dark: #059669;
  --secondary: #6b7280;
  --danger: #ef4444;
  --background: #ffffff;
  --surface: #f9fafb;
  --border: #e5e7eb;
  --text: #111827;
  --text-light: #6b7280;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--background);
  color: var(--text);
  line-height: 1.6;
  padding-bottom: 2rem;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem;
}

header {
  text-align: center;
  padding: 2rem 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 1.5rem;
}

h1 {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

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

/* Tabs */
.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.tab {
  padding: 0.75rem 1rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--text-light);
  white-space: nowrap;
  transition: all 0.2s;
}

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

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Action Bar */
.action-bar {
  margin-bottom: 1.5rem;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-danger {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

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

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

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

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

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

.btn-danger:hover {
  background: #dc2626;
}

/* Card List */
.card-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  transition: all 0.2s;
}

.card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

.card-date {
  font-size: 0.85rem;
  color: var(--text-light);
}

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

.card-meta {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-light);
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
}

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

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

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

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-light);
}

.empty-state p:first-child {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.hint {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* Modal */
.modal {
  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;
  padding: 1rem;
  z-index: 1000;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: white;
  border-radius: 12px;
  padding: 2rem;
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-content h2 {
  margin-bottom: 1.5rem;
  color: var(--primary);
}

/* Forms */
form label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

form input[type="text"],
form input[type="date"],
form input[type="number"],
form textarea {
  width: 100%;
  padding: 0.75rem;
  margin-top: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
}

form input[type="checkbox"] {
  margin-right: 0.5rem;
}

form textarea {
  resize: vertical;
  min-height: 80px;
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  justify-content: flex-end;
}

/* Premium Features */
.premium-features {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.premium-features li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.premium-features li:last-child {
  border-bottom: none;
}

/* Settings */
.settings-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

#premium-section {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  border-color: var(--primary);
}

.settings-section h2 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--primary);
}

.settings-section button {
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
}

.settings-section p {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--text-light);
}

.settings-section a {
  color: var(--primary);
  text-decoration: none;
}

.settings-section a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 640px) {
  .container {
    padding: 0.5rem;
  }

  header {
    padding: 1.5rem 0;
  }

  h1 {
    font-size: 1.5rem;
  }

  .tabs {
    gap: 0.25rem;
  }

  .tab {
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
  }

  .modal-content {
    padding: 1.5rem;
  }

  .form-actions {
    flex-direction: column-reverse;
  }

  .form-actions button {
    width: 100%;
  }
}