/* SQL Playground styles */

:root {
  --ground: rgb(214,232,250);
  --panel: rgb(17,25,42);
  --panel-2: rgb(23,33,54);
  --line: rgb(38,52,78);
  --line-soft: rgb(29,41,63);
  --ink: rgb(226,234,245);
  --ink-2: rgb(166,182,205);
  --ink-3: rgb(120,139,166);
  --sky: rgb(122,188,245);
  --sky-hover: rgb(150,203,248);
  --sky-soft: rgb(24,44,72);
  --on-sky: rgb(9,15,27);
  --kw: rgb(122,188,245);
  --coral: rgb(240,139,121);
  --coral-soft: rgb(58,32,34);
  --amber: rgb(232,192,112);
  --amber-soft: rgb(52,43,24);
  --str: rgb(142,212,172);
  --num: rgb(240,190,130);
  --success: rgb(60,168,120);

  --header-title: rgb(16,32,58);
  --header-sub: rgb(52,76,110);
  --docs-bg: rgb(17,25,42);
  --docs-bg-hover: rgb(29,41,63);
  --docs-text: rgb(226,234,245);

  --font-display: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-body: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

a {
  color: var(--sky);
}

button,
input,
textarea {
  font-family: inherit;
}

:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: 2px;
}

/* Header */
.app-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 28px 28px 20px;
  background: transparent;
  border-bottom: none;
  box-shadow: none;
  flex-wrap: wrap;
  max-width: 1280px;
  margin: 0 auto;
}

.title-block {
  flex: 1 1 auto;
  min-width: 200px;
}

.title-block h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  color: var(--header-title);
}

.title-block p {
  margin: 4px 0 0;
  color: var(--header-sub);
  font-size: 13.5px;
}

.docs-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: var(--docs-bg);
  color: var(--docs-text);
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.docs-link:hover {
  background: var(--docs-bg-hover);
  color: var(--docs-text);
}

/* How it works strip */
.how-it-works {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
}

.how-steps {
  display: flex;
  align-items: center;
  gap: 14px;
  list-style: none;
  margin: 0;
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(11,17,30,0.22);
}

.how-step {
  display: flex;
  align-items: stretch;
  flex: 1 1 0;
  min-width: 0;
}

.how-step-btn {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  width: 100%;
  padding: 4px;
  margin: -4px;
  border: 2px solid transparent;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  border-radius: 8px;
  min-width: 0;
  transition: outline-color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, opacity 0.16s ease, transform 0.16s ease;
  outline: 2px solid transparent;
  outline-offset: 2px;
}

.how-step-btn:hover {
  background: var(--sky-soft);
}

.how-step-btn:hover,
.how-step-btn:focus-visible {
  border-color: var(--sky);
  box-shadow: 0 0 0 4px rgba(122,188,245,0.28);
}

.how-step-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid var(--sky);
  background: transparent;
  color: var(--sky);
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 700;
}

.how-step-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.how-step-title {
  font-weight: 700;
  color: var(--ink);
  font-size: 13.5px;
}

.how-step-desc {
  font-size: 12.5px;
  color: var(--ink-2);
  margin-top: 2px;
}

.how-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  color: var(--ink-3);
  transition: opacity 0.16s ease;
}

/* Layout */
.layout {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 20px 28px 40px;
  max-width: 1280px;
  margin: 0 auto;
}

.sidebar {
  width: 280px;
  flex: 0 0 280px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(11,17,30,0.22);
  padding: 18px;
  position: sticky;
  top: 20px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  outline: 2px solid transparent;
  outline-offset: 2px;
  transition: outline-color 0.2s ease, box-shadow 0.2s ease, opacity 0.16s ease, transform 0.16s ease;
}

.sidebar h2 {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.lessons-count {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
}

.search-field {
  margin-bottom: 14px;
}

.search-field label {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  color: var(--ink-2);
}

.search-field input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 13.5px;
  color: var(--ink);
  background: var(--panel-2);
}

.search-field input::placeholder {
  color: var(--ink-3);
}

.search-field input:focus {
  border-color: var(--sky);
}

.example-section {
  margin: 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  margin: 14px 0 4px;
  padding: 5px 6px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--ink-3);
  cursor: pointer;
  text-align: left;
}

.example-section:first-child .section-header {
  margin-top: 4px;
}

.section-header:hover {
  background: var(--sky-soft);
  color: var(--ink-2);
}

.section-header-text {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: inherit;
}

.section-count {
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
}

.chevron {
  flex-shrink: 0;
  color: inherit;
  transform: rotate(-90deg);
  transition: transform 0.15s ease;
}

.chevron.is-expanded {
  transform: rotate(0deg);
}

.example-item {
  display: flex;
  align-items: flex-start;
  width: 100%;
  text-align: left;
  padding: 8px 10px 8px 10px;
  border: none;
  border-left: 2px solid transparent;
  background: transparent;
  border-radius: 6px;
  cursor: pointer;
  margin-bottom: 2px;
}

.example-item:hover {
  background: var(--sky-soft);
}

.example-item.is-selected {
  border-left-color: var(--sky);
  background: var(--sky-soft);
}

.example-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.example-item.is-selected .example-name {
  color: var(--ink);
}

.example-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}

.example-desc {
  font-size: 12px;
  color: var(--ink-2);
  margin-top: 1px;
}

.no-results {
  color: var(--ink-2);
  font-size: 13px;
  padding: 6px 4px;
}

.sidebar-loading {
  color: var(--ink-2);
  font-size: 13px;
  padding: 6px 4px;
}

.sidebar-error {
  color: var(--coral);
  font-size: 13px;
  padding: 6px 4px;
}

/* Main area */
.main {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(11,17,30,0.22);
  padding: 20px;
  outline: 2px solid transparent;
  outline-offset: 2px;
  transition: outline-color 0.2s ease, box-shadow 0.2s ease, opacity 0.16s ease, transform 0.16s ease;
}

.card-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.tables-card .card-title {
  margin: 0;
}

.card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 0 0 14px;
}

.card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--sky);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  color: var(--sky);
  background: transparent;
  flex-shrink: 0;
}

/* Steps strip hover/focus highlighting the matching card(s) */
/* When any step is hovered/focused, dim everything in the strip and layout by default */
.how-it-works:has(.how-step-btn:hover) .how-step-btn,
.how-it-works:has(.how-step-btn:focus-visible) .how-step-btn,
.how-it-works:has(.how-step-btn:hover) ~ .layout .card,
.how-it-works:has(.how-step-btn:focus-visible) ~ .layout .card,
.how-it-works:has(.how-step-btn:hover) ~ .layout .sidebar,
.how-it-works:has(.how-step-btn:focus-visible) ~ .layout .sidebar {
  opacity: 0.55;
}

/* The hovered/focused step itself stays fully visible and gets the strong highlight */
.how-step-btn:hover,
.how-step-btn:focus-visible {
  opacity: 1;
  outline-color: var(--sky);
  outline-width: 3px;
  outline-offset: 2px;
  box-shadow: 0 0 0 6px rgba(122,188,245,0.35);
  transform: translateY(-3px);
}

/* Step 1 -> Tables card */
.how-it-works:has(.step-1:hover) ~ .layout .tables-card,
.how-it-works:has(.step-1:focus-visible) ~ .layout .tables-card {
  opacity: 1;
  outline-color: var(--sky);
  outline-width: 3px;
  outline-offset: 2px;
  box-shadow: 0 10px 30px rgba(11,17,30,0.22), 0 0 0 6px rgba(122,188,245,0.35);
  transform: translateY(-3px);
}

/* Step 2 -> Lessons sidebar and Query card */
.how-it-works:has(.step-2:hover) ~ .layout .query-card,
.how-it-works:has(.step-2:focus-visible) ~ .layout .query-card,
.how-it-works:has(.step-2:hover) ~ .layout .sidebar,
.how-it-works:has(.step-2:focus-visible) ~ .layout .sidebar {
  opacity: 1;
  outline-color: var(--sky);
  outline-width: 3px;
  outline-offset: 2px;
  box-shadow: 0 10px 30px rgba(11,17,30,0.22), 0 0 0 6px rgba(122,188,245,0.35);
  transform: translateY(-3px);
}

/* Step 3 -> Results card */
.how-it-works:has(.step-3:hover) ~ .layout .results-card,
.how-it-works:has(.step-3:focus-visible) ~ .layout .results-card {
  opacity: 1;
  outline-color: var(--sky);
  outline-width: 3px;
  outline-offset: 2px;
  box-shadow: 0 10px 30px rgba(11,17,30,0.22), 0 0 0 6px rgba(122,188,245,0.35);
  transform: translateY(-3px);
}

/* Tables card */
.tabs {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.tab-item {
  display: inline-flex;
  align-items: center;
}

.tab-btn {
  padding: 8px 14px;
  border: none;
  background: transparent;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-2);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.tab-btn.is-active {
  color: var(--ink);
  border-bottom-color: var(--sky);
}

.tab-remove {
  border: none;
  background: transparent;
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  margin: 0 2px -1px -2px;
  border-radius: 5px;
}

.tab-remove:hover {
  color: var(--coral);
  background: var(--coral-soft);
}

.tables-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.btn-ghost-sm {
  padding: 6px 10px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--sky);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 6px;
  flex-shrink: 0;
}

.btn-ghost-sm:hover {
  background: var(--sky-soft);
}

/* Shared toggle-link style: used by "Show/Hide data" and "Show/Hide lesson" so both match exactly */
.btn-toggle-link {
  flex-shrink: 0;
  padding: 6px 10px;
  border: none;
  background: transparent;
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 6px;
  text-decoration: none;
  white-space: nowrap;
}

.btn-toggle-link:hover,
.btn-toggle-link:focus-visible {
  color: var(--sky);
  text-decoration: underline;
}

.add-table-panel {
  margin: 4px 0 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-2);
}

.add-table-heading {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.field-row {
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 320px;
}

.field-row label {
  font-size: 12px;
  color: var(--ink-2);
}

.field-row input[type="text"] {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  font-size: 13.5px;
}

.field-row input[type="text"]::placeholder {
  color: var(--ink-3);
}

.field-row input[type="text"]:focus {
  border-color: var(--sky);
}

.field-hint {
  margin: 2px 0 0;
  font-size: 11.5px;
  color: var(--ink-3);
}

.source-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.source-tab {
  padding: 7px 12px;
  border: none;
  background: transparent;
  color: var(--ink-2);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.source-tab.is-active {
  color: var(--ink);
  border-bottom-color: var(--sky);
}

.paste-area {
  width: 100%;
  min-height: 120px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.5;
  resize: vertical;
}

.paste-area::placeholder {
  color: var(--ink-3);
}

.paste-area:focus {
  border-color: var(--sky);
}

.drop-zone {
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 22px 16px;
  text-align: center;
  cursor: pointer;
  color: var(--ink-2);
  background: var(--panel-2);
}

.drop-zone p {
  margin: 0;
  font-size: 13px;
}

.drop-zone-link {
  color: var(--sky);
  font-weight: 600;
  text-decoration: underline;
}

.drop-zone-hint {
  margin-top: 6px !important;
  font-size: 11.5px;
  color: var(--ink-3);
}

.drop-zone.is-dragover {
  border-color: var(--sky);
  background: var(--sky-soft);
}

.file-name {
  margin: 8px 0 0;
  font-size: 12.5px;
  color: var(--ink-2);
}

.add-table-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.persist-warning {
  margin: 0 0 10px;
  font-size: 11.5px;
  color: var(--ink-2);
}

.tables-meta {
  font-size: 12.5px;
  color: var(--ink-2);
  margin-bottom: 10px;
}

.tables-meta code {
  font-family: var(--font-mono);
  background: var(--panel-2);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--ink);
}

.tables-summary {
  font-size: 12.5px;
  color: var(--ink-2);
  margin: 0 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.table-scroll {
  position: relative;
  max-height: 320px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

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

table.data-table thead th {
  position: sticky;
  top: 0;
  background: var(--panel-2);
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-3);
  white-space: nowrap;
  z-index: 1;
}

table.data-table thead th .col-type {
  display: block;
  font-weight: 400;
  font-size: 10.5px;
  letter-spacing: 0;
  color: var(--ink-3);
  text-transform: none;
  margin-top: 2px;
}

table.data-table thead th .col-original {
  display: block;
  font-weight: 400;
  font-size: 10px;
  letter-spacing: 0;
  color: var(--ink-3);
  text-transform: none;
  font-style: italic;
  margin-top: 1px;
}

table.data-table td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ink);
  white-space: nowrap;
}

table.data-table tbody tr:nth-child(even) {
  background: var(--line-soft);
}

td.cell-number {
  text-align: right;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.cell-null,
.cell-empty {
  color: var(--ink-3);
  font-style: italic;
}

.tables-note {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--ink-2);
}

.row-reveal {
  animation: row-reveal-in 0.35s ease both;
}

@keyframes row-reveal-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.sweep-band {
  position: absolute;
  left: 0;
  right: 0;
  top: -15%;
  height: 15%;
  background: linear-gradient(to bottom, rgba(122,188,245,0), rgba(122,188,245,0.25), rgba(122,188,245,0));
  pointer-events: none;
  z-index: 2;
}

.sweep-band.is-sweeping {
  animation: sweep-down 0.6s ease forwards;
}

@keyframes sweep-down {
  from { top: -15%; }
  to { top: 100%; }
}

/* Query card */
.example-info {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 12px;
}

.example-info-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.example-info-heading {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.example-info-section {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.example-info-name {
  font-weight: 700;
  color: var(--ink);
  font-size: 13.5px;
}

.example-info-body {
  margin-top: 6px;
}

.example-info-desc {
  font-size: 13px;
  color: var(--ink-2);
  margin: 3px 0;
}

.example-info-syntax {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-3);
}

.editor-wrap {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel-2);
}

.editor-wrap:focus-within {
  border-color: var(--sky);
  box-shadow: 0 0 0 2px var(--sky);
}

.editor-layer {
  margin: 0;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  height: 178px;
  overflow: auto;
  color: var(--ink);
  pointer-events: none;
}

textarea.editor-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 178px;
  margin: 0;
  padding: 12px 14px;
  border: none;
  resize: none;
  background: transparent;
  color: transparent;
  caret-color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

textarea.editor-input::selection {
  background: rgba(122, 188, 245, 0.28);
}

.tok-kw { color: var(--kw); font-weight: 600; }
.tok-str { color: var(--str); }
.tok-num { color: var(--num); }
.tok-comment { color: var(--ink-3); font-style: italic; }

.editor-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.btn {
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  background: var(--sky);
  color: var(--on-sky);
  border-color: var(--sky);
  box-shadow: 0 1px 2px rgba(11,17,30,0.3);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.btn-primary:hover:not(:disabled) {
  background: var(--sky-hover);
  border-color: var(--sky-hover);
  transform: translateY(-1px);
  box-shadow: 0 5px 14px rgba(11,17,30,0.4);
}

.btn-primary:active:not(:disabled) {
  transform: scale(0.97);
}

.btn-primary.is-success {
  background: var(--success);
  border-color: var(--success);
  color: rgb(9,15,27);
}

.btn-primary.is-shake {
  animation: btn-shake 0.3s ease;
}

@keyframes btn-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(3px); }
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 0;
  overflow: visible;
}

.btn-primary.is-running .btn-icon,
.btn-primary.is-success .btn-icon {
  width: 14px;
  margin-right: 7px;
}

.btn-spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid rgba(9,15,27,0.35);
  border-top-color: rgb(9,15,27);
  border-radius: 50%;
  animation: btn-spin 0.7s linear infinite;
}

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

.btn-check {
  color: rgb(9,15,27);
}

.btn-secondary {
  background: transparent;
  color: var(--ink-2);
  border-color: var(--line);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--sky);
  color: var(--sky);
}

.btn-secondary[aria-pressed="true"] {
  border-color: var(--sky);
  color: var(--sky);
  background: var(--sky-soft);
}

.hint {
  font-size: 12px;
  color: var(--ink-3);
}

.notice {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  border-left: 3px solid transparent;
}

.notice-error {
  background: var(--coral-soft);
  border-left-color: var(--coral);
  color: var(--ink);
}

.notice-amber {
  background: var(--amber-soft);
  border-left-color: var(--amber);
  color: var(--ink);
}

.db-notice-detail {
  margin: 6px 0 0;
  font-size: 12px;
  color: var(--ink-2);
}

.error-query-line {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  white-space: pre;
  overflow-x: auto;
  color: var(--ink);
}

.error-caret {
  color: var(--coral);
}

.error-code {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-2);
}

/* Explain this query panel */
.explain-panel {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  overflow: hidden;
}

.explain-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 9px 14px;
  border-bottom: 1px solid var(--line-soft);
  flex-wrap: wrap;
}

.explain-row:last-child {
  border-bottom: none;
}

.explain-sql {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink);
  flex: 1 1 260px;
  min-width: 0;
  word-break: break-word;
}

.explain-label {
  font-size: 12.5px;
  color: var(--ink-2);
  flex: 1 1 220px;
}

.explain-empty {
  margin: 0;
  padding: 12px 14px;
  font-size: 13px;
  color: var(--ink-2);
}

.explain-subrow {
  padding-left: 34px;
}

.explain-subrow .explain-sql {
  font-size: 12px;
}

.explain-subrow .explain-label {
  font-size: 12px;
}

.explain-link {
  font: inherit;
  font-family: var(--font-mono);
  background: transparent;
  border: none;
  padding: 0;
  margin: 0;
  color: var(--sky);
  text-decoration: underline;
  cursor: pointer;
}

.explain-link:hover,
.explain-link:focus-visible {
  color: var(--sky-hover);
}

/* Results card */
.results-card {
  position: relative;
  overflow: hidden;
}

.results-progress {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  overflow: hidden;
  pointer-events: none;
  z-index: 2;
}

.results-progress::after {
  content: "";
  position: absolute;
  top: 0;
  left: -30%;
  width: 30%;
  height: 100%;
  background: var(--sky);
  border-radius: 2px;
}

.results-progress.is-running::after {
  animation: progress-slide 1.1s ease-in-out infinite;
}

@keyframes progress-slide {
  0% { left: -30%; }
  100% { left: 100%; }
}

.results-card.is-glow {
  animation: card-glow 0.7s ease;
}

@keyframes card-glow {
  0% {
    box-shadow: 0 10px 30px rgba(11,17,30,0.22);
    border-color: var(--line);
  }
  30% {
    box-shadow: 0 0 0 3px var(--sky-soft), 0 6px 18px rgba(122,188,245,0.35);
    border-color: var(--sky);
  }
  100% {
    box-shadow: 0 10px 30px rgba(11,17,30,0.22);
    border-color: var(--line);
  }
}

.results-meta {
  font-size: 13px;
  color: var(--ink-2);
  margin-bottom: 10px;
}

.results-note {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--ink-2);
}

.results-empty {
  color: var(--ink-2);
  font-size: 13px;
  padding: 20px 0;
  text-align: center;
}

/* Responsive */
@media (max-width: 900px) {
  .layout {
    flex-direction: column;
    padding: 16px;
  }
  .sidebar {
    width: 100%;
    flex: 1 1 auto;
    position: static;
    max-height: none;
  }
  .app-header {
    padding: 24px 18px 18px;
  }
  .how-it-works {
    padding: 0 16px;
  }
}

@media (max-width: 800px) {
  .how-steps {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .how-arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 560px) {
  .card-title-row {
    flex-wrap: wrap;
  }
}

@media (max-width: 520px) {
  .editor-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    width: 100%;
  }
  .add-table-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .explain-row {
    flex-direction: column;
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn-primary:hover:not(:disabled) {
    transform: none;
  }
  .btn-primary.is-shake {
    animation: none;
  }
  .row-reveal {
    animation: none;
    opacity: 1;
    transform: none;
  }
  .sweep-band {
    display: none;
  }
  .how-it-works:has(.how-step-btn:hover) .how-step-btn,
  .how-it-works:has(.how-step-btn:focus-visible) .how-step-btn,
  .how-it-works:has(.how-step-btn:hover) ~ .layout .card,
  .how-it-works:has(.how-step-btn:focus-visible) ~ .layout .card,
  .how-it-works:has(.how-step-btn:hover) ~ .layout .sidebar,
  .how-it-works:has(.how-step-btn:focus-visible) ~ .layout .sidebar {
    opacity: 1;
  }
  .how-step-btn:hover,
  .how-step-btn:focus-visible,
  .how-it-works:has(.step-1:hover) ~ .layout .tables-card,
  .how-it-works:has(.step-1:focus-visible) ~ .layout .tables-card,
  .how-it-works:has(.step-2:hover) ~ .layout .query-card,
  .how-it-works:has(.step-2:focus-visible) ~ .layout .query-card,
  .how-it-works:has(.step-2:hover) ~ .layout .sidebar,
  .how-it-works:has(.step-2:focus-visible) ~ .layout .sidebar,
  .how-it-works:has(.step-3:hover) ~ .layout .results-card,
  .how-it-works:has(.step-3:focus-visible) ~ .layout .results-card {
    transform: none;
  }
}

/* Knowi platform accessibility invariant */
[hidden] { display: none !important; }