/* db_master.css — Estilos para el DB Master (SQL, ERD, Normalización) */

body { overflow-x: hidden; }

.db-master-container {
  display: flex;
  min-height: calc(100vh - 70px);
  padding: 80px 20px 20px;
  gap: 20px;
  max-width: 1400px;
  margin: 0 auto;
}

/* ── Sidebar ── */
.db-sidebar {
  width: 280px;
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 20px;
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
}

.db-logo {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem;
  color: var(--accent-primary);
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.db-tabs {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tab-btn {
  padding: 12px 15px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s ease;
  font-family: "Outfit", sans-serif;
  letter-spacing: 0.5px;
}

.tab-btn:hover {
  background: var(--bg-main);
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--accent-primary);
  color: #fff;
  box-shadow: 0 4px 15px var(--accent-glow);
}

/* ── Tab Content Areas ── */
.db-content {
  flex: 1;
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.db-view {
  display: none;
  flex-direction: column;
  height: 100%;
  padding: 25px;
  animation: fadeIn 0.3s ease;
}

.db-view.active {
  display: flex;
}

.view-header {
  margin-bottom: 25px;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 15px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.view-header h3 {
  font-size: 1.8rem;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
}
.view-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ── Módulo 1: SQL Playground ── */
.sql-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 20px;
  flex: 1;
}

.sql-editor-panel {
  grid-column: 1 / 2;
  grid-row: 1 / 2;
  background: #1e1e1e;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
}

.editor-toolbar {
  background: #2d2d2d;
  padding: 10px 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #a0a0a0;
  font-size: 0.85rem;
  border-bottom: 1px solid #000;
}

.btn-run {
  background: #10b981;
  color: white;
  border: none;
  padding: 6px 15px;
  border-radius: 5px;
  cursor: pointer;
  font-weight: 600;
  transition: 0.3s;
}
.btn-run:hover { background: #059669; }

#sqlInput {
  flex: 1;
  background: transparent;
  border: none;
  color: #c678dd;
  font-family: monospace;
  font-size: 1.1rem;
  padding: 15px;
  resize: none;
  outline: none;
}
#sqlInput::placeholder { color: #5c6370; }

.sql-schemas-panel {
  grid-column: 2 / 3;
  grid-row: 1 / 2;
  background: var(--bg-main);
  border-radius: 12px;
  padding: 15px;
  border: 1px solid var(--glass-border);
  overflow-y: auto;
}
.sql-schemas-panel h4 { color: var(--text-primary); margin-bottom: 10px; font-family:"Outfit", sans-serif; }
.schema-list { list-style: none; padding: 0; }
.schema-table { margin-bottom: 10px; font-size: 0.9rem; color: var(--text-primary); }
.schema-table b { color: var(--accent-primary); }
.schema-fields { color: var(--text-secondary); font-size: 0.8rem; padding-left: 10px; }

.sql-results-panel {
  grid-column: 1 / 3;
  grid-row: 2 / 3;
  background: var(--bg-main);
  border-radius: 12px;
  padding: 15px;
  border: 1px solid var(--glass-border);
  overflow-y: auto;
}
.sql-results-panel h4 { color: var(--text-primary); margin-bottom: 15px; font-family:"Outfit", sans-serif;}

.results-table-container table {
  width: 100%;
  border-collapse: collapse;
}
.results-table-container th, .results-table-container td {
  padding: 12px;
  border-bottom: 1px solid var(--glass-border);
  text-align: left;
  color: var(--text-primary);
  font-size: 0.9rem;
}
.results-table-container th { background: rgba(0,0,0,0.1); font-weight: 600; color: var(--text-secondary); }
.error-msg { color: #ef4444; font-family: monospace; }
.success-msg { color: #10b981; font-family: monospace; }

/* ── Módulo 2: ERD Builder ── */
.erd-canvas {
  flex: 1;
  background: var(--bg-main);
  border-radius: 12px;
  border: 1px dashed var(--glass-border);
  position: relative;
  overflow: hidden; /* IMPORTANTE: Para que SVG no rompa los bordes */
  min-height: 480px;
  background-image: radial-gradient(var(--glass-border) 1px, transparent 1px);
  background-size: 20px 20px;
}

.erd-svg-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 5;
}

.erd-path {
  fill: none;
  stroke: var(--accent-primary);
  stroke-width: 3;
  stroke-linecap: round;
  filter: drop-shadow(0 0 5px var(--accent-glow));
  pointer-events: stroke;
  cursor: pointer;
  transition: stroke 0.3s;
}
.erd-path:hover { stroke: #ef4444; }

.erd-path.temp-path {
  stroke: #f59e0b;
  stroke-dasharray: 8 8;
  animation: lineDash 1s linear infinite;
}
@keyframes lineDash { to { stroke-dashoffset: -16; } }

.erd-table {
  position: absolute;
  width: 210px;
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  overflow: visible; /* Para los conectores circulares flotantes */
  z-index: 10;
  display: flex;
  flex-direction: column;
}
.erd-table:hover {
  border-color: var(--accent-primary);
}
.erd-table-header {
  background: var(--accent-primary);
  color: white;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  font-weight: 600;
  cursor: grab;
  font-family: "Outfit", sans-serif;
  letter-spacing: 1px;
  position: relative;
  border-radius: 8px 8px 0 0;
}
.erd-table-header:active { cursor: grabbing; }

[contenteditable="true"] { outline: none; border-bottom: 1px dashed transparent; transition: 0.3s; }
[contenteditable="true"]:focus { border-bottom: 1px dashed rgba(255,255,255,0.7); background: rgba(0,0,0,0.2); cursor: text; border-radius:3px;}

.erd-table-body { padding: 10px; display: flex; flex-direction: column; gap:5px; }

.erd-field { 
  display: flex; 
  align-items: center;
  justify-content: space-between;
  gap: 5px;
  font-size: 0.85rem; 
  color: var(--text-primary);
  background: rgba(0,0,0,0.2);
  border-radius: 4px;
  padding: 4px 6px;
  border-left: 3px solid transparent;
}
.erd-field.is-pk { border-left-color: #f59e0b; }
.erd-field.is-fk { border-left-color: #3b82f6; }

.erd-field-name { flex: 1; min-width: 40px; }
.erd-field-type { width: 40px; text-transform: uppercase; color: var(--text-secondary); text-align: right; font-size: 0.7rem; }

.erd-btn-group { display: flex; gap: 4px; }
.btn-mini { background: transparent; border: none; font-size: 0.7rem; padding: 2px; cursor: pointer; color: var(--text-secondary); transition: 0.2s;}
.btn-mini:hover { color: #fff; }
.btn-mini.pk.active { color: #f59e0b; text-shadow: 0 0 5px #f59e0b;}
.btn-mini.fk.active { color: #3b82f6; text-shadow: 0 0 5px #3b82f6;}
.btn-mini.del:hover { color: #ef4444; }

.erd-connector {
  position: absolute;
  width: 14px; height: 14px;
  background: var(--card-bg);
  border: 3px solid var(--accent-primary);
  border-radius: 50%;
  cursor: crosshair;
  z-index: 20;
  transition: transform 0.2s, background 0.2s;
}
.erd-connector:hover { transform: scale(1.3); background: var(--accent-primary); }
.erd-connector.left { left: -7px; top: 9px; }
.erd-connector.right { right: -7px; top: 9px; }

.erd-add-row {
  margin-top: 5px;
  width: 100%;
  background: transparent;
  border: 1px dashed var(--glass-border);
  color: var(--text-secondary);
  padding: 5px;
  border-radius: 5px;
  cursor: pointer;
  transition: 0.3s;
  font-size: 0.8rem;
}
.erd-add-row:hover { background: rgba(255,255,255,0.05); color: var(--accent-primary); border-color: var(--accent-primary); }

.btn-modern.btn-sm { 
  padding: 8px 15px; 
  font-size: 0.9rem; 
  background: var(--accent-primary); 
  color: white; 
  border:none; 
  border-radius: 5px; 
  cursor: pointer; 
  transition: 0.3s;
}
.btn-modern.btn-sm:hover { background: var(--accent-hover); }

/* ── ERD Context Menu ── */
.erd-context-menu {
  position: absolute;
  background: var(--card-bg);
  border: 1px solid var(--accent-primary);
  border-radius: 8px;
  padding: 15px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.5);
  z-index: 1000;
  backdrop-filter: blur(10px);
  min-width: 220px;
}
.erd-context-menu h4 { color: white; margin-bottom: 10px; font-family: "Outfit", sans-serif; font-size: 1rem; text-align: center; border-bottom: 1px solid var(--glass-border); padding-bottom: 5px;}
.erd-context-menu h6 { color: var(--text-secondary); margin: 10px 0 5px; font-size: 0.8rem; }
.erd-menu-grid { display: flex; gap: 5px; margin-bottom: 5px; }
.erd-menu-grid button {
  flex: 1;
  background: var(--bg-main);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  border-radius: 4px;
  cursor: pointer;
  padding: 5px 0;
  font-weight: bold;
  transition: 0.2s;
}
.erd-menu-grid button:hover, .erd-menu-grid button.active {
  background: var(--accent-primary);
  color: white;
}
.btn-del-line {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid #ef4444;
  width: 100%;
  padding: 8px;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
  transition: 0.3s;
}
.btn-del-line:hover { background: #ef4444; color: white; }

/* ── Diamond (Notación Chen) ── */
.erd-diamond {
  position: absolute;
  width: 90px; height: 90px;
  background: rgba(167, 139, 250, 0.1);
  border: 2px solid #a78bfa;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  transform: rotate(45deg);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
}
.erd-diamond:active { cursor: grabbing; z-index: 100;}
.erd-diamond-text {
  transform: rotate(-45deg);
  color: white;
  font-weight: bold;
  text-align: center;
  font-size: 0.85rem;
  max-width: 80px;
  word-wrap: break-word;
  outline: none;
}
.erd-diamond-text:focus { border-bottom: 1px dashed white; }

.erd-connector.diamond-top { top: -7px; left: calc(50% - 7px); transform: rotate(-45deg);}
.erd-connector.diamond-bottom { bottom: -7px; left: calc(50% - 7px); transform: rotate(-45deg);}
.erd-connector.diamond-left { left: -7px; top: calc(50% - 7px); transform: rotate(-45deg);}
.erd-connector.diamond-right { right: -7px; top: calc(50% - 7px); transform: rotate(-45deg);}

.btn-outline.btn-sm {
  padding: 8px 15px; 
  font-size: 0.9rem; 
  border-radius: 5px; 
  cursor: pointer; 
  transition: 0.3s;
}
.btn-outline:hover { background: rgba(255,255,255,0.1); }

/* ── Módulo 3: Normalización ── */
.norm-content { display: flex; flex-direction: column; gap: 20px; flex: 1; overflow-y: auto;}
.norm-steps { display: flex; gap: 10px; border-bottom: 1px solid var(--glass-border); padding-bottom: 10px; }
.norm-step-btn { 
  background: transparent; 
  border: none; 
  color: var(--text-secondary); 
  font-size: 1rem; 
  cursor: pointer; 
  padding: 5px 10px; 
  font-weight: 600; 
  transition: 0.3s;
  font-family: "Outfit", sans-serif;
}
.norm-step-btn:hover { color: var(--text-primary); }
.norm-step-btn.active { color: var(--accent-primary); border-bottom: 2px solid var(--accent-primary); }
.norm-display { display: flex; flex-direction: column; gap: 20px; }
.norm-explanation { 
  background: rgba(99, 102, 241, 0.1); 
  border-left: 4px solid var(--accent-primary); 
  padding: 15px; 
  border-radius: 4px; 
  color: var(--text-primary); 
  font-size: 0.95rem; 
  line-height: 1.5;
}
.norm-explanation strong { color: var(--accent-primary); font-size: 1.1rem; display: block; margin-bottom: 5px;}
.norm-tables-container { display: flex; gap: 20px; flex-wrap: wrap; }
.norm-tables-container table { 
  background: var(--bg-main); 
  border-collapse: collapse; 
  border-radius: 8px; 
  overflow: hidden; 
  border: 1px solid var(--glass-border); 
}
.norm-tables-container th, .norm-tables-container td { 
  padding: 8px 12px; 
  border-bottom: 1px solid var(--glass-border); 
  font-size: 0.85rem; 
  color: var(--text-primary);
}
.norm-tables-container th { background: rgba(0,0,0,0.05); font-weight: 600; color: var(--text-secondary);}
.norm-table-wrapper { margin-bottom: 20px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); }
.norm-table-wrapper h5 { 
  color: #fff; 
  background: var(--accent-primary);
  margin: 0; 
  padding: 8px;
  font-size: 0.9rem;
  letter-spacing: 1px;
}

.info-alert {
  background: rgba(251, 191, 36, 0.1); 
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-left: 4px solid #fbbf24; 
  padding: 12px 15px; 
  border-radius: 6px;
}

@media (max-width: 900px) {
  .db-master-container { flex-direction: column; }
  .db-sidebar { width: 100%; }
  .db-tabs { flex-direction: row; flex-wrap: wrap;}
  .sql-layout { grid-template-columns: 1fr; grid-template-rows: auto auto auto;}
  .sql-editor-panel { grid-column: 1/2; grid-row: 1/2; min-height: 200px; }
  .sql-schemas-panel { grid-column: 1/2; grid-row: 2/3; }
  .sql-results-panel { grid-column: 1/2; grid-row: 3/4; }
}

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px);} to { opacity: 1; transform: translateY(0);} }

/* ── Sección de Teoría V3 ── */
.theory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  overflow-y: auto;
  padding-right: 10px;
  padding-bottom: 20px;
}

.theory-card {
  background: var(--card-bg);
  padding: 18px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.theory-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
  border-color: var(--accent-primary);
}

body.light-mode .theory-card {
  box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

body.light-mode .theory-card:hover {
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.theory-card h4 {
  color: var(--accent-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Outfit', sans-serif;
}

.theory-subbox {
  flex: 1;
  min-width: 200px;
  background: rgba(255, 255, 255, 0.03);
  padding: 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
}

body.light-mode .theory-subbox {
  background: rgba(0, 0, 0, 0.03);
}

.postgres-card {
  grid-column: 1 / -1;
  border-left: 5px solid #336791;
}

.postgres-subbox {
  background: rgba(51, 103, 145, 0.1);
  border-left: 3px solid #336791;
  padding: 12px;
  border-radius: 6px;
  transition: background 0.3s ease;
}

body.light-mode .postgres-subbox {
  background: rgba(51, 103, 145, 0.05);
}

.code-snippet-box {
  margin-top: 15px;
  background: rgba(0,0,0,0.4);
  padding: 18px;
  border-radius: 8px;
  border: 1px solid rgba(51, 103, 145, 0.3);
}

body.light-mode .code-snippet-box {
  background: #1e293b; /* Mantener oscuro para contraste de código o cambiar a algo claro */
  color: #e2e8f0;
}

.code-snippet-box b {
  color: #79c0ff;
}

.code-snippet-box span.keyword {
  color: #ff7b72;
}

.theory-list {
  font-size: 0.85rem;
  padding-left: 20px;
  color: var(--text-secondary);
  margin-top: 5px;
  line-height: 1.6;
}

.theory-list li b {
  color: var(--text-primary);
}