:root {
  color-scheme: light;
  --bg: #f4f5f7;
  --panel: #ffffff;
  --border: #d9dce1;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --text: #1f2937;
  --muted: #6b7280;
  --danger: #dc2626;
  --surface: #eef2f7;
  --surface-alt: #fafbfc;
  --active-bg: #e8effd;
  --ok: #15803d;
  --notice-bg: #f0fdf4;
  --notice-border: #bbf7d0;
  --notice-text: #166534;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111418;
  --panel: #1b2027;
  --border: #313a45;
  --accent: #3b82f6;
  --accent-dark: #2563eb;
  --text: #e5e7eb;
  --muted: #98a2b0;
  --danger: #f87171;
  --surface: #232b34;
  --surface-alt: #171c22;
  --active-bg: #1e3a5f;
  --ok: #4ade80;
  --notice-bg: #132a1c;
  --notice-border: #265e3d;
  --notice-text: #86efac;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
}

button {
  font: inherit;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
}

button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

button.primary:hover:not(:disabled) { background: var(--accent-dark); color: #fff; }

button:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- Cabecera ---------- */

header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

header h1 {
  margin: 0 auto 0 0;
  font-size: 17px;
  font-weight: 600;
}

/* ---------- Distribución ---------- */

#app {
  flex: 1;
  display: flex;
  min-height: 0;
}

aside {
  width: 220px;
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 10px 6px;
}

#schema-list h3 {
  margin: 10px 8px 4px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
}

#schema-list ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

#schema-list li {
  padding: 5px 10px;
  border-radius: 5px;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#schema-list li:hover { background: var(--bg); }
#schema-list li.active { background: var(--active-bg); color: var(--accent-dark); font-weight: 600; }
#schema-list li .icon { margin-right: 6px; }
#schema-list .empty { color: var(--muted); cursor: default; }

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 12px 14px;
  gap: 10px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  overflow: auto;
}

#welcome { text-align: center; padding: 48px 16px; }

.muted { color: var(--muted); font-size: 13px; }

.notice {
  max-width: 420px;
  margin: 14px auto 0;
  padding: 8px 14px;
  font-size: 13px;
  background: var(--notice-bg);
  border: 1px solid var(--notice-border);
  border-radius: 6px;
  color: var(--notice-text);
}

/* ---------- Pestañas ---------- */

#main-tabs {
  display: flex;
  gap: 4px;
}

.tab {
  border-radius: 6px 6px 0 0;
  border-bottom-color: transparent;
}

.tab.active {
  background: var(--panel);
  color: var(--accent-dark);
  font-weight: 600;
  border-bottom-color: var(--panel);
}

/* ---------- Vista de tabla ---------- */

.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.toolbar h2 {
  margin: 0;
  font-size: 16px;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
}

.spacer { flex: 1; }

.badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
}

#table-container {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  max-height: calc(100vh - 250px);
}

table.data {
  border-collapse: collapse;
  width: max-content;
  min-width: 100%;
  font-size: 13px;
}

table.data th, table.data td {
  border: 1px solid var(--border);
  padding: 5px 9px;
  text-align: left;
  vertical-align: top;
  max-width: 340px;
  overflow-wrap: normal;
  word-break: normal;
}

table.data th {
  position: sticky;
  top: 0;
  background: var(--surface);
  font-weight: 600;
  white-space: nowrap;
}

table.data th.sortable { cursor: pointer; user-select: none; }

table.data th.sortable:hover { color: var(--accent); }

table.data th .sort-arrow { color: var(--muted); font-size: 10px; }

table.data th.sorted .sort-arrow::after {
  content: '▲';
  margin-left: 4px;
}

table.data th.sorted.desc .sort-arrow::after { content: '▼'; }

table.data th small { display: block; font-weight: 400; color: var(--muted); }

td.rowid, th.rowid { color: var(--muted); text-align: right; background: var(--surface-alt); }

td.cell { cursor: text; min-width: 40px; }

td.cell[contenteditable="true"] {
  outline: 2px solid var(--accent);
  background: var(--panel);
}

td .null { color: var(--muted); font-style: italic; }

td .blob { color: var(--muted); }

/* ---------- Fila de nuevo registro ---------- */

tr.add-row td { background: var(--surface-alt); }

tr.add-row input {
  width: 100%;
  min-width: 60px;
  font: inherit;
  padding: 3px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--panel);
  color: var(--text);
}

tr.add-row input:focus { outline: 2px solid var(--accent); }

tr.add-row td.req input { border-color: var(--danger); }

tr.add-row td.add-actions { white-space: nowrap; }

button.confirm-add { color: var(--ok); padding: 2px 6px; }

button.cancel-add { color: var(--danger); padding: 2px 6px; }

button.del {
  color: var(--danger);
  border: none;
  background: none;
  padding: 2px 6px;
}

button.del:hover { text-decoration: underline; color: var(--danger); }

.pager {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 10px;
}

/* ---------- Consola SQL ---------- */

#sql-view { display: none; flex-direction: column; }

#sql-input {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 13px;
  width: 100%;
  height: 150px;
  resize: vertical;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
}

#sql-results { margin-top: 10px; }

#sql-results .msg { padding: 4px 0; }
#sql-results .ok { color: var(--ok); }
#sql-results .error { color: var(--danger); white-space: pre-wrap; }

#sql-results h4 { margin: 14px 0 6px; font-size: 13px; color: var(--muted); }

.result-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 6px;
}

.result-head h4 { margin: 0; font-size: 13px; color: var(--muted); }

.csv-btn {
  font-size: 11px;
  padding: 2px 8px;
}

/* ---------- Barra de estado ---------- */

footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 6px 16px;
  font-size: 12px;
  color: var(--muted);
  background: var(--panel);
  border-top: 1px solid var(--border);
  min-height: 29px;
}

#status { min-height: 18px; }

#status.error { color: var(--danger); }

.footer-info { text-align: right; }

.footer-info a { color: var(--accent); text-decoration: none; }

.footer-info a:hover { text-decoration: underline; }

body.dragging::after {
  content: attr(data-drag-text);
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 600;
  background: rgba(37, 99, 235, .12);
  border: 3px dashed var(--accent);
  pointer-events: none;
}

/* ---------- Móvil ---------- */

#btn-menu { display: none; }

@media (max-width: 720px) {
  html, body { height: auto; }

  body { font-size: 13px; }

  header {
    flex-wrap: wrap;
    gap: 6px;
    padding: 8px 10px;
  }

  #btn-menu {
    display: inline-block;
    font-size: 16px;
    padding: 6px 10px;
    line-height: 1;
  }

  header h1 { font-size: 15px; }

  header button { padding: 8px 10px; }

  #app { flex-direction: column; }

  aside {
    display: none;
    width: auto;
    max-height: 38vh;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 6px;
  }

  aside.open { display: block; }

  #schema-list li { padding: 9px 10px; }

  main { padding: 8px; }

  .panel { padding: 8px; border-radius: 6px; }

  #welcome { padding: 24px 8px; }

  .toolbar { gap: 6px; }

  .toolbar button { padding: 8px 10px; }

  #table-container {
    -webkit-overflow-scrolling: touch;
    max-height: 40vh;
  }

  table.data { font-size: 12px; }

  table.data th, table.data td {
    padding: 6px 8px;
    max-width: 180px;
  }

  td.cell[contenteditable="true"] { font-size: 16px; }

  .pager { gap: 8px; flex-wrap: wrap; }

  .pager button { padding: 10px 14px; }

  #sql-input { height: 110px; font-size: 16px; }

  #sql-results table.data th, #sql-results table.data td { max-width: 220px; }
}