:root {
  /* Brand */
  --primary-color: #F1C374;          /* dourado quente */
  --primary-hover: #E0AE55;          /* dourado mais escuro para hover */

  /* Accent */
  --secondary-color: #C0843D;        /* azul acinzentado (equilibra o quente) */

  /* Status */
  --success-color: #2FA37C;          /* verde mais sóbrio */
  --danger-color: #E04F4F;           /* vermelho menos saturado */
  --warning-color: #D97706;          /* laranja/âmbar compatível com o dourado */

  /* Backgrounds */
  --background: #FAF7F2;             /* off-white quente */
  --surface: #FFFFFF;               /* cards / modais */
  --border: #E6DCC8;                 /* borda com leve tom quente */

  /* Text */
  --text-primary: #1F2933;           /* quase preto, menos agressivo */
  --text-secondary: #6B7280;         /* cinza médio para textos auxiliares */

  /* Shadows */
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
.header {
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.header h1 {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.header-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.user-info {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Buttons */
.btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-block;
}

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

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

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

.btn-secondary:hover {
  background-color: #475569;
}

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

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

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

.btn-success:hover {
  background-color: #059669;
}

.btn-small {
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
}

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

/* Forms */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.875rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  font-size: 0.875rem;
  transition: border-color 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
  min-height: 150px;
  font-family: inherit;
  resize: vertical;
}

/* Cards */
.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

/* Alert */
.alert {
  padding: 0.75rem 1rem;
  border-radius: 0.375rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.alert-error {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

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

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

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background-color: var(--surface);
  border-radius: 0.5rem;
  padding: 2rem;
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

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

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
}

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

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

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

/* Loading */
.loading {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.6s linear infinite;
}

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

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }

.hidden {
  display: none !important;
}

/* Prompt Card Actions */
.prompt-card {
  position: relative;
}

.prompt-card-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.icon-btn {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border);
  border-radius: 0.25rem;
  padding: 0.25rem 0.5rem;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s;
  box-shadow: var(--shadow);
}

.icon-btn:hover {
  background: white;
  transform: scale(1.1);
}

.icon-btn.active {
  background: #fef3c7;
  border-color: #fbbf24;
}

.icon-btn.copied {
  background: #d1fae5;
  border-color: #10b981;
  color: #10b981;
}

/* Favorites Filter Button */
#favoritesFilter {
  white-space: nowrap;
}

#favoritesFilter[data-active="true"] {
  background-color: #fef3c7;
  border-color: #fbbf24;
  color: #92400e;
}

/* Copy Button States */
[data-action="copy-prompt"].copied {
  background-color: var(--success-color);
  color: white;
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }
  
  .header-actions {
    width: 100%;
    justify-content: space-between;
  }
  
  .filters {
    flex-direction: column;
  }
  
  .filters > * {
    width: 100%;
  }
}