/* Variables */
:root {
  --color-bg: #ffffff;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-border: #e5e7eb;
  --color-accent: #64748b;
  --color-error: #ef4444;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --spacing-unit: 1rem;
  --border-radius: 0.5rem;
}

/* Modo noche */
html[data-theme="dark"] {
  --color-bg: #1a1a1a;
  --color-text: #f0f0f0;
  --color-text-light: #a0a0a0;
  --color-border: #333333;
  --color-accent: #94a3b8;
}

main {
  margin: 0;
  padding: 0;
  line-height: 1;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-family);
  line-height: 1.2;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
  margin: 0;
  padding: 0;
}

/* Estructura */
.wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  gap: 0;
}

.header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: border-color 0.3s ease;
}

.header-content {
  width: 98%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.header h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
  padding: 0;
}

/* Selector de BD */
.db-selector {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color 0.2s;
  min-width: 150px;
}

.db-selector:hover {
  border-color: var(--color-accent);
}

/* Botón de tema */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 0.5rem 0.75rem;
  font-size: 1.25rem;
  cursor: pointer;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background-color: var(--color-border);
}

.container {
  flex: 1;
  width: 98%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0;
}

.footer {
  border-top: 1px solid var(--color-border);
  padding: 0.5rem;
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.875rem;
}

/* Contenido */
.content {
  line-height: 1.2;
  width: 100%;
  margin: 0;
  padding: 0;
  margin-top: 1rem;
}

.checkbox-cell {
  cursor: pointer;
  user-select: none;
  font-size: 1.1rem;
}

.checkbox-cell:hover {
  opacity: 0.7;
}
.data-block {
  margin: 0 0 0 1rem;
  padding: 0;
  background-color: var(--color-bg);
  border: none;
  position: relative;
  line-height: 1;
}

.block-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  padding: 0;
  border-bottom: none;
  line-height: 1;
  display: block;
  margin-bottom: -20px;
}

.block-info {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 0.5rem;
  font-style: italic;
}

.remove-block-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
  cursor: pointer;
  color: var(--color-text-light);
  transition: all 0.2s;
}

.remove-block-btn:hover {
  background-color: var(--color-error);
  color: white;
  border-color: var(--color-error);
}

/* Tabla de base de datos */
.db-table-wrapper {
  overflow-x: auto;
  margin: -20px 0 0 0;
  padding: 0;
}

.db-table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  font-size: 0.8rem;
  line-height: 1;
  margin: 0;
  padding: 0;
  vertical-align: top;
}

.db-table th {
  background-color: #e5e7eb;
  color: var(--color-text);
  padding: 0 0.375rem;
  text-align: left;
  font-weight: 600;
  border: none;
}

html[data-theme="dark"] .db-table th {
  background-color: #333333;
  color: var(--color-text);
}

.db-table th,
.db-table td {
  padding: 0.125rem 0.375rem;
  border: none;
  color: var(--color-text);
}

.db-table tr:hover {
  background-color: rgba(59, 130, 246, 0.05);
}

html[data-theme="dark"] .db-table tr:hover {
  background-color: rgba(96, 165, 250, 0.1);
}

.db-table tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.02);
}

html[data-theme="dark"] .db-table tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Tabla de base de datos */
.db-table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
}

.db-table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  font-size: 0.8rem;
  line-height: 1;
  margin: 0;
  padding: 0;
  vertical-align: top;
}

.db-table th {
  background-color: #e5e7eb;
  color: var(--color-text);
  padding: 0 0.375rem;
  text-align: left;
  font-weight: 600;
  border: none;
}

html[data-theme="dark"] .db-table th {
  background-color: #333333;
  color: var(--color-text);
}

.db-table th,
.db-table td {
  padding: 0.125rem 0.375rem;
  border: none;
  color: var(--color-text);
}

.db-table tr:hover {
  background-color: rgba(59, 130, 246, 0.05);
}

html[data-theme="dark"] .db-table tr:hover {
  background-color: rgba(96, 165, 250, 0.1);
}

.db-table tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.02);
}

html[data-theme="dark"] .db-table tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02);
}

.empty-message {
  color: var(--color-text-light);
  font-style: italic;
  padding: 1rem;
  text-align: center;
}
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  color: var(--color-text-light);
}

.spinner {
  border: 3px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: 50%;
  width: 2rem;
  height: 2rem;
  animation: spin 0.8s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.error-box {
  background-color: #fee2e2;
  border: 1px solid #fecaca;
  border-radius: var(--border-radius);
  padding: 1rem;
  margin-bottom: 1.5rem;
  color: #991b1b;
}

html[data-theme="dark"] .error-box {
  background-color: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.5);
  color: #fca5a5;
}

.error-box strong {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
  .header h1 {
    font-size: 1.25rem;
  }

  .db-selector {
    min-width: 100px;
    font-size: 0.8rem;
  }

  .db-table {
    font-size: 0.85rem;
  }

  .db-table th,
  .db-table td {
    padding: 0.5rem;
  }
}

@media (max-width: 480px) {
  .header {
    padding: 0.75rem 0;
  }

  .header h1 {
    font-size: 1.1rem;
  }

  .header-top {
    gap: 0.5rem;
  }

  .db-selector {
    min-width: 80px;
    font-size: 0.75rem;
  }

  .db-table {
    font-size: 0.8rem;
  }

  .db-table th,
  .db-table td {
    padding: 0.375rem;
  }
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-light);
}