/* =========================================================
   App-scoped layer
   - Load AFTER skeleton.css and app-base.css
   - Reuses shared theme tokens before asserting app behavior
   ========================================================= */

/* ---------- 1) App semantic tokens derived from shared tokens ---------- */
:root {
  --app-surface: var(--ont-panel-bg);
  --app-surface-subtle: color-mix(in srgb, var(--ont-emph-bg) 65%, var(--ont-panel-bg));
  --app-surface-hover: color-mix(in srgb, var(--ont-accent-soft) 55%, var(--ont-panel-bg));

  --app-header-bg: color-mix(in srgb, var(--ont-accent) 48%, #0f172a);
  --app-header-text: #ffffff;

  --app-border-soft: var(--ont-border);
  --app-border-strong: color-mix(in srgb, var(--ont-border) 80%, var(--ont-text));

  --app-shadow-sm: 0 2px 8px color-mix(in srgb, var(--ont-text) 8%, transparent);
  --app-shadow-md: 0 2px 16px color-mix(in srgb, var(--ont-text) 6%, transparent);
  --app-shadow-lg: 0 6px 20px color-mix(in srgb, var(--ont-text) 14%, transparent);

  --app-control-bg: color-mix(in srgb, var(--ont-panel-bg) 72%, var(--ont-accent-soft));
  --app-control-hover: color-mix(in srgb, var(--ont-accent-soft) 65%, var(--ont-panel-bg));
  --app-control-border: color-mix(in srgb, var(--ont-accent) 18%, var(--ont-border));

  --app-table-head-bg: color-mix(in srgb, var(--ont-accent-soft) 72%, var(--ont-panel-bg));
  --app-table-head-text: var(--ont-text);
  --app-table-row-even: color-mix(in srgb, var(--ont-emph-bg) 52%, var(--ont-panel-bg));
  --app-table-row-odd: var(--ont-panel-bg);

  --app-danger-bg: color-mix(in srgb, #ef4444 10%, var(--ont-panel-bg));
  --app-danger-border: color-mix(in srgb, #ef4444 30%, var(--ont-border));

  --app-toast-bg: color-mix(in srgb, var(--ont-panel-bg) 18%, #111827);
  --app-toast-text: #ffffff;
  --app-toast-success: #166534;
  --app-toast-error: #991b1b;
  --app-toast-info: #1e3a5f;

  --app-status-idle-text: color-mix(in srgb, var(--ont-text) 82%, var(--ont-muted));
  --app-status-idle-bg: color-mix(in srgb, var(--ont-muted) 25%, var(--ont-panel-bg));
  --app-status-idle-border: color-mix(in srgb, var(--ont-muted) 45%, var(--ont-border));

  --app-status-ok-text: var(--ont-text);
  --app-status-ok-bg: color-mix(in srgb, #22c55e 26%, var(--ont-panel-bg));
  --app-status-ok-border: color-mix(in srgb, #22c55e 42%, var(--ont-border));

  --app-query-cell-max: 26rem;
}

/* ---------- 2) Page shell ---------- */

body {
  padding: 0 0 2em 0;
}

.header {
  background: var(--app-header-bg);
  color: var(--app-header-text);
  font-size: 1.75em;
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.04em;
  box-shadow: var(--app-shadow-sm);
}

main {
  margin: 0 auto;
  padding: 1.5em 2em 2em 2em;
  background: var(--app-surface);
  border: 1px solid var(--app-border-soft);
  border-radius: 12px;
  box-shadow: var(--app-shadow-md);
  max-width: 94%;
}

footer {
  padding: 2rem;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: grid;
}

/* ---------- 3) App headings ---------- */

h1 {
  color: var(--ont-text);
  text-align: center;
  margin-top: 0.5em;
  margin-bottom: 0.5em;
  font-size: 2em;
  letter-spacing: 0.03em;
}

h3 {
  color: var(--ont-text);
  margin-top: 0.5em;
  margin-bottom: 0.5em;
  font-size: 2.5rem;
}

label {
  font-weight: 400;
  height: 28px;
}

/* ---------- 4) Tabs ---------- */

.tabs {
  display: flex;
  gap: 0.7em;
  justify-content: space-around;
  margin-top: 0.5em;
  margin-bottom: 0.5em;
}

.tab-btn {
  appearance: none;
  border: none;
  background: transparent;
  padding: 0.6rem 0.9rem;
  margin: 0;
  min-height: 0;
  font-size: 1em;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: normal;
  text-transform: none;
  color: var(--ont-muted);
  border-bottom: 2px solid transparent;
  border-radius: 0;
  box-shadow: none;
  cursor: pointer;
}

.tab-btn:hover {
  color: var(--ont-text);
  background: transparent;
  border-color: transparent;
}

.tab-btn.active {
  color: var(--ont-text);
  font-weight: 600;
  border-bottom-color: var(--ont-accent);
}

.tab-btn.active:active {
  transform: none;
}

.tab-btn:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--ont-focus) 60%, transparent);
  outline-offset: 2px;
}

/* ---------- 5) Three-column tab layout ---------- */

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: grid;
  grid-template-columns: 20% 55% 25%;
  align-items: start;
  column-gap: 1rem;
  row-gap: 1rem;
  width: 100%;
}

.sidebar-left {
  grid-column: 1;
  min-width: 0;
}

.mid-section {
  grid-column: 2;
  min-width: 0;
}

.sidebar-right {
  grid-column: 3;
  min-width: 0;
}

.sidebar-left,
.sidebar-right,
.mid-section,
.tab-mid-section {
  box-sizing: border-box;
}

/* ---------- 6) Tables ---------- */

table {
  margin: 1em auto 2em auto;
  border-collapse: collapse;
  background: var(--app-surface);
  border: 1px solid var(--app-border-soft);
  box-shadow: 0 2px 12px color-mix(in srgb, var(--ont-text) 7%, transparent);
  border-radius: 8px;
  overflow: hidden;
  min-width: 600px;
  max-width: 90vw;
}

thead td,
thead th {
  background: var(--app-table-head-bg);
  color: var(--app-table-head-text);
  font-size: 1.08em;
  font-weight: 600;
  padding: 0.7em 0.5em;
  text-align-last: center;
  border-bottom-color: var(--app-border-soft);
}

td {
  padding: 0.7em 0.5em;
  text-align: center;
}

tr:last-child td {
  border-bottom: none;
}

/* ---------- 7) Controls ----------
   Skeleton already gives baseline sizing/structure.
   These overrides preserve your app's earlier look/behavior.
*/

input[type="file"],
input[type="text"],
input[type="textbox"],
input[type="search"],
input[type="url"],
textarea,
select {
  font-size: 1em;
  background: var(--app-control-bg);
  color: var(--ont-text);
  border-color: var(--app-control-border);
}

input[type="file"],
input[type="text"],
input[type="textbox"],
input[type="search"],
input[type="url"] {
  padding: 0.3em 0.5em;
}

textarea {
  background: color-mix(in srgb, var(--ont-panel-bg) 82%, var(--ont-accent-soft));
  width: 98%;
  box-sizing: border-box;
  margin-bottom: 0.7em;
  resize: vertical;
}

select {
  padding: 0.3em 0.7em;
  margin-left: 0.5em;
}

input[type="file"]:focus,
input[type="text"]:focus,
input[type="textbox"]:focus,
input[type="search"]:focus,
input[type="url"]:focus,
textarea:focus,
select:focus {
  border-color: var(--ont-focus);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ont-focus) 35%, transparent);
}

button,
.button,
input[type="submit"],
input[type="reset"],
input[type="button"] {
  padding: 0.35em 1.1em;
  margin: 0.2em 0.3em;
  font-size: 1.4rem;
  line-height: 1.2;
  letter-spacing: normal;
  text-transform: none;
  border-radius: 5px;
  background: var(--app-control-bg);
  transition:
    background-color 0.2s,
    color 0.2s,
    border-color 0.2s,
    box-shadow 0.2s;
}

button:hover,
.button:hover,
input[type="submit"]:hover,
input[type="reset"]:hover,
input[type="button"]:hover {
  background: var(--app-control-hover);
  color: var(--ont-link-hover);
  border-color: var(--ont-link-hover);
}

button:focus-visible,
.button:focus-visible,
input[type="submit"]:focus-visible,
input[type="reset"]:focus-visible,
input[type="button"]:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ont-focus) 35%, transparent);
}

button.prefix-button {
  padding: 0.25em 0.5em;
  font-size: 0.8em;
  height:auto;
  margin: 0.1em 0.1em;
}

.file-upload-row input[type="file"] {
  width: 45%;
}

.workspace-export-panel {
  margin-bottom: 0.5rem;
}

.workspace-export-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.6rem;
  margin-top: 1rem;
}

.workspace-export-actions label {
  flex-basis: 100%;
  height: auto;
  margin-bottom: -0.2rem;
}

.workspace-export-actions select {
  margin-left: 0;
  min-width: 11rem;
}

.workspace-export-actions button {
  margin-top: 0;
  margin-bottom: 0;
}

.workspace-export-actions small {
  color: var(--ont-muted);
  line-height: 1.35;
}

/* ---------- 8) Inference rule chips ---------- */

#rules {
  display: flex;
  gap: 1em;
  flex-wrap: wrap;
  margin-bottom: 1em;
}

#rules label {
  font-size: 1em;
  color: var(--ont-text);
  background: var(--app-control-bg);
  border-radius: 4px;
  padding: 0.2em 0.6em;
  border: 1px solid color-mix(in srgb, var(--ont-border) 75%, var(--ont-accent-soft));
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s;
}

#rules label:hover {
  background: var(--app-control-hover);
}


.inference-status-block {
  margin-top: 0.75rem;
}

.inference-status-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
  font-weight: 600;
}

.inference-console {
  width: 100%;
  min-height: 12em;
  resize: vertical;
  font-family: monospace;
  white-space: pre-wrap;
  overflow-y: auto;
}

.inference-spinner {
  width: 0.95rem;
  height: 0.95rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  display: inline-block;
  vertical-align: middle;
  opacity: 0.6;
  transform: rotate(0deg);
}

.inference-spinner.is-busy {
  animation: inference-spin 0.8s linear infinite;
  opacity: 1;
}

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

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

/* ---------- 9) Danger blocks ---------- */

.danger-zone,
.danger {
  color: var(--ont-text);
  background-color: var(--app-danger-bg);
  border: 1px solid var(--app-danger-border);
  border-radius: var(--ont-radius);
}

.danger-zone {
  padding: 1rem;
}

.danger {
  padding: 0.25rem;
}

/* ---------- 10) Toasts ---------- */

#toast-container {
  position: fixed;
  right: 16px;
  bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
}

.toast {
  min-width: 260px;
  max-width: 420px;
  padding: 10px 12px;
  border-radius: 8px;
  box-shadow: var(--app-shadow-lg);
  background: var(--app-toast-bg);
  color: var(--app-toast-text);
  font: 14px/1.35 var(--ont-font-body);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  opacity: 0.98;
  transform: translateY(0);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.hide {
  opacity: 0;
  transform: translateY(6px);
}

.toast__icon {
  font-size: 18px;
  line-height: 1;
}

.toast--success {
  background: var(--app-toast-success);
}

.toast--error {
  background: var(--app-toast-error);
}

.toast--info {
  background: var(--app-toast-info);
}

.flash-success {
  animation: flashSuccess 0.9s ease;
}

.flash-error {
  animation: flashError 0.9s ease;
}

@keyframes flashSuccess {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4);
  }
  100% {
    box-shadow: 0 0 0 14px rgba(16, 185, 129, 0);
  }
}

@keyframes flashError {
  0% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4);
  }
  100% {
    box-shadow: 0 0 0 14px rgba(239, 68, 68, 0);
  }
}

.toast:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--ont-focus) 60%, transparent);
  outline-offset: 2px;
}

/* ---------- 11) Query results ---------- */

.query-results-th,
.query-results-td {
  vertical-align: top;
  box-sizing: border-box;
}

.query-results-tr:nth-child(even) {
  background-color: var(--app-table-row-even);
}

.query-results-tr:nth-child(odd) {
  background-color: var(--app-table-row-odd);
}

.query-cell {
  display: block;
  max-width: var(--app-query-cell-max);
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
  font-size: 1.25rem;
  line-height: 1.15;
}

.query-cell-details {
  max-width: var(--app-query-cell-max);
}

.query-cell-summary {
  display: block;
  max-width: var(--app-query-cell-max);
  cursor: pointer;
  list-style: none;
  overflow-wrap: anywhere;
  word-break: break-word;
  white-space: normal;
}

.query-results-th .query-cell {
  font-weight: 600;
}

.query-cell-summary::-webkit-details-marker {
  display: none;
}

.query-cell-full {
  margin-top: 0.35rem;
  max-width: var(--app-query-cell-max);
  overflow-wrap: anywhere;
  word-break: break-word;
  white-space: normal;
  border-top: 1px solid var(--ont-border);
}

#query-results {
  grid-column: 1 / 4;
  width: 98%;
  max-width: 100%;
  overflow-x: auto;
  background: var(--app-surface);
  border: 1px solid var(--app-border-soft);
  border-radius: 8px;
  padding: 1rem;
  box-sizing: border-box;
}

#query-results table {
  border-collapse: collapse;
  min-width: 100%;
  width: max-content;
  max-width: none;
}

/* Better query textarea sizing */
#sparql-query,
#rdf-preview {
  min-height: 12em;
  font-size: 1.5rem;
  box-sizing: border-box;
}

/* ---------- 12) Status row / badges ---------- */

.status-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.status-btn {
  --radius: 999px;
  --pad-x: 14px;
  --pad-y: 8px;
  --font: 14px;

  font-size: var(--font);
  border-radius: var(--radius);
  padding: var(--pad-y) var(--pad-x);
  border: 1px solid transparent;
  cursor: default;
  user-select: none;
  white-space: nowrap;
  transition:
    background-color 160ms ease,
    color 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.status-idle {
  color: var(--app-status-idle-text);
  background: var(--app-status-idle-bg);
  border-color: var(--app-status-idle-border);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--ont-text) 8%, transparent);
}

.status-ok {
  color: var(--app-status-ok-text);
  background: var(--app-status-ok-bg);
  border-color: var(--app-status-ok-border);
  box-shadow: inset 0 0 0 1px rgba(16, 185, 129, 0.35);
}

.status-btn:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--ont-focus) 45%, transparent);
  outline-offset: 2px;
}

/* ---------- 13) Responsive ---------- */

@media (max-width: 900px) {
  .tab-panel.active {
    grid-template-columns: 1fr;
  }

  .sidebar-left,
  .mid-section,
  .tab-mid-section,
  .sidebar-right,
  #query-results {
    grid-column: 1;
  }

  .tabs {
    flex-wrap: wrap;
  }
}

@media (max-width: 700px) {
  table {
    min-width: 0;
    width: 98vw;
    font-size: 0.98em;
  }

  textarea {
    width: 98vw;
  }

  #rules {
    flex-direction: column;
    gap: 0.5em;
  }
}

/* ---------- 14) Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .toast {
    transition: none;
  }

  .toast.hide {
    transform: none;
  }
}