/* Databázová dílna (templates/sql_workshop.html, static/js/sql-workshop.js).
   Only the site's colour tokens, so the dark theme needs nothing extra. */

.sqlw-progress {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-weight: 650;
}

.sqlw-section {
  padding-top: 0;
}

.sqlw-layout {
  display: grid;
  grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.sqlw-nav {
  position: sticky;
  top: 1rem;
  display: grid;
  gap: 1rem;
}

.sqlw-nav ol {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sqlw-nav-item {
  width: 100%;
  display: grid;
  grid-template-columns: 1.8rem 1fr auto;
  gap: 0.6rem;
  align-items: center;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.sqlw-nav-item:hover,
.sqlw-nav-item.is-current {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.sqlw-nav-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-weight: 800;
}

.sqlw-nav-title {
  font-weight: 650;
  font-size: 0.95rem;
}

.sqlw-nav-count {
  color: var(--muted);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.sqlw-nav-count.is-complete {
  color: var(--success);
  font-weight: 800;
}

.sqlw-schema {
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}

.sqlw-schema summary {
  font-weight: 750;
  cursor: pointer;
}

.sqlw-schema-note {
  margin: 0.4rem 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.sqlw-schema ul {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sqlw-schema-table {
  display: grid;
  gap: 0.1rem;
}

.sqlw-schema-name {
  justify-self: start;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-weight: 750;
}

.sqlw-schema-columns {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.45;
}

.sqlw-main {
  display: grid;
  gap: 1.25rem;
  min-width: 0;
}

.sqlw-station,
.sqlw-editor-card {
  padding: 1.4rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.sqlw-station h2 {
  margin: 0 0 0.5rem;
}

.sqlw-intro {
  color: var(--muted);
}

.sqlw-example {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  margin: 0.8rem 0 1.2rem;
}

.sqlw-example code,
.sqlw-editor {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

.sqlw-example code {
  padding: 0.45rem 0.7rem;
  border-radius: 10px;
  background: var(--surface-alt);
  color: var(--text);
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.sqlw-tasks {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sqlw-task {
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 14px;
}

.sqlw-task.is-active {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-soft);
}

.sqlw-task-head {
  display: grid;
  grid-template-columns: 1.8rem 1fr;
  gap: 0.6rem;
  align-items: start;
}

.sqlw-task-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 999px;
  background: var(--surface-alt);
  color: var(--text);
  font-weight: 800;
}

.sqlw-task.is-done .sqlw-task-number {
  background: var(--success);
  color: #fff;
}

.sqlw-task-text {
  margin: 0.2rem 0 0;
}

.sqlw-task-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  margin: 0.6rem 0 0 2.4rem;
}

.sqlw-hints {
  margin: 0.4rem 0 0 2.4rem;
  padding-left: 1.1rem;
  color: var(--muted);
}

.sqlw-hints li + li {
  margin-top: 0.25rem;
}

.sqlw-small-btn {
  padding: 0.45rem 0.9rem;
  font-size: 0.9rem;
}

.sqlw-link-btn {
  padding: 0;
  border: 0;
  background: none;
  color: var(--primary);
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

.sqlw-link-btn:hover {
  text-decoration: underline;
}

.sqlw-link-btn:disabled {
  color: var(--muted);
  cursor: default;
  text-decoration: none;
}

.sqlw-active-task {
  margin: 0 0 0.8rem;
  font-weight: 650;
}

.sqlw-editor-label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 700;
}

.sqlw-editor {
  width: 100%;
  min-height: 8rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-alt);
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.5;
  resize: vertical;
}

.sqlw-editor:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.sqlw-editor-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  margin-top: 0.8rem;
}

.sqlw-shortcut,
.sqlw-note,
.sqlw-muted {
  color: var(--muted);
  font-size: 0.85rem;
}

.sqlw-note {
  margin: 0.6rem 0 0;
}

.sqlw-feedback:empty {
  display: none;
}

.sqlw-feedback {
  display: grid;
  gap: 0.3rem;
  margin-top: 1rem;
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  font-weight: 650;
}

.sqlw-feedback.is-right {
  border-color: var(--success);
  color: var(--success);
}

.sqlw-feedback.is-wrong,
.sqlw-feedback.is-error {
  border-color: #d64545;
}

.sqlw-raw-error {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.8rem;
  font-weight: 400;
}

.sqlw-result {
  margin-top: 1rem;
}

.sqlw-result .sqlw-muted {
  margin: 0 0 0.4rem;
}

.sqlw-table-wrap {
  max-height: 26rem;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.sqlw-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.sqlw-table th,
.sqlw-table td {
  padding: 0.4rem 0.65rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}

.sqlw-table th {
  position: sticky;
  top: 0;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

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

@media (max-width: 860px) {
  .sqlw-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .sqlw-nav {
    position: static;
  }

  /* The stations become one scrolling row, so the task is right below. */
  .sqlw-nav ol {
    grid-auto-flow: column;
    grid-auto-columns: minmax(12rem, 1fr);
    overflow-x: auto;
    padding-bottom: 0.3rem;
  }

  .sqlw-task-actions,
  .sqlw-hints {
    margin-left: 0;
  }
}