@import url("../../../assets/css/digital.css");

/* Theme control (auto/light/dark)
   - auto: follows prefers-color-scheme
   - light/dark: overridden via data-theme (learning/theme.js)
   - This file keeps existing class names but maps colors/typography to shared tokens.
*/
:root {
  color-scheme: light;

  /* Override shared semantic tokens for this app */
  --color-text: var(--color-neutral-solid-gray-800);
  --color-text-muted: var(--color-neutral-solid-gray-536);
  --color-bg: var(--color-neutral-white);
  --color-surface: var(--color-neutral-white);
  --color-surface-2: var(--color-neutral-solid-gray-50);
  --color-border: var(--color-neutral-solid-gray-200);
  --color-link: var(--color-primitive-blue-900);

  /* Keep legacy variable names (used throughout this file) */
  --bg: var(--color-bg);
  --surface: var(--color-surface);
  --surface-2: var(--color-surface-2);
  --text: var(--color-text);
  --muted: var(--color-text-muted);
  --border: var(--color-border);
  --link: var(--color-link);
  --accent: var(--color-primitive-blue-800);
  --focus: var(--color-primitive-yellow-300);

  /* Light mode: make buttons more visible */
  --btn-bg: var(--color-neutral-solid-gray-100);
  --btn-text: var(--color-text);
  --btn-border: var(--color-neutral-solid-gray-300);

  --tab-bg: var(--color-surface);
  --tab-active-bg: var(--color-surface-2);

  --code-bg: var(--color-surface-2);
  --code-text: var(--color-text);
  --code-border: var(--color-border);

  --shadow: var(--elevation-1);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --color-text: #e6e6e6;
    --color-text-muted: #b3b3b3;
    --color-bg: #1a1a1a;
    --color-surface: #252526;
    --color-surface-2: #2d2d2d;
    --color-border: #4d4d4d;
    --color-link: #79a6ff;

    --bg: var(--color-bg);
    --surface: var(--color-surface);
    --surface-2: var(--color-surface-2);
    --text: var(--color-text);
    --muted: var(--color-text-muted);
    --border: var(--color-border);
    --link: var(--color-link);
    --accent: #79a6ff;
    --focus: var(--color-primitive-yellow-300);

    --btn-bg: var(--color-surface-2);
    --btn-text: var(--color-text);
    --btn-border: var(--color-border);

    --tab-bg: var(--color-surface-2);
    --tab-active-bg: var(--color-bg);

    --code-bg: #1e1e1e;
    --code-text: var(--color-text);
    --code-border: var(--color-border);

    --shadow: var(--elevation-1);
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --color-text: var(--color-neutral-solid-gray-800);
  --color-text-muted: var(--color-neutral-solid-gray-536);
  --color-bg: var(--color-neutral-white);
  --color-surface: var(--color-neutral-white);
  --color-surface-2: var(--color-neutral-solid-gray-50);
  --color-border: var(--color-neutral-solid-gray-200);
  --color-link: var(--color-primitive-blue-900);

  --bg: var(--color-bg);
  --surface: var(--color-surface);
  --surface-2: var(--color-surface-2);
  --text: var(--color-text);
  --muted: var(--color-text-muted);
  --border: var(--color-border);
  --link: var(--color-link);
  --accent: var(--color-primitive-blue-800);
  --focus: var(--color-primitive-yellow-300);

  --btn-bg: var(--color-neutral-solid-gray-100);
  --btn-text: var(--color-text);
  --btn-border: var(--color-neutral-solid-gray-300);

  --tab-bg: var(--color-surface);
  --tab-active-bg: var(--color-surface-2);

  --code-bg: var(--color-surface-2);
  --code-text: var(--color-text);
  --code-border: var(--color-border);

  --shadow: var(--elevation-1);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --color-text: #e6e6e6;
  --color-text-muted: #b3b3b3;
  --color-bg: #1a1a1a;
  --color-surface: #252526;
  --color-surface-2: #2d2d2d;
  --color-border: #4d4d4d;
  --color-link: #79a6ff;

  --bg: var(--color-bg);
  --surface: var(--color-surface);
  --surface-2: var(--color-surface-2);
  --text: var(--color-text);
  --muted: var(--color-text-muted);
  --border: var(--color-border);
  --link: var(--color-link);
  --accent: #79a6ff;
  --focus: var(--color-primitive-yellow-300);

  --btn-bg: var(--color-surface-2);
  --btn-text: var(--color-text);
  --btn-border: var(--color-border);

  --tab-bg: var(--color-surface-2);
  --tab-active-bg: var(--color-bg);

  --code-bg: #1e1e1e;
  --code-text: var(--color-text);
  --code-border: var(--color-border);

  --shadow: var(--elevation-1);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-family: var(--font-family-sans);
}

.header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.header a {
  color: var(--link);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.header-actions .controlGroup {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.themeLabel {
  font-size: 12px;
  color: var(--muted);
}

.select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 6px;
  font-size: 12px;
}

.textInput {
  padding: 8px 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 6px;
  font-size: 12px;
  min-width: 160px;
}

.btnLink {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border: 1px solid var(--btn-border);
  background: var(--btn-bg);
  color: var(--btn-text);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.12);
}

.btnLink:hover {
  filter: brightness(0.98);
}

.btnLink:active {
  filter: brightness(0.95);
}

.saveInfo {
  font-size: 12px;
  color: var(--muted);
}

.fileInput {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

h1 {
  margin: 0;
  font-size: 20px;
}

.sub {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.container {
  max-width: 980px;
  margin: 16px auto;
  padding: 0 16px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 16px;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.steps {
  margin: 0;
  padding-left: 18px;
}

.muted {
  color: #888;
}

.howto {
  margin: 0;
  padding-left: 18px;
}

.back {
  display: inline-block;
  margin-bottom: 6px;
  color: var(--link);
  text-decoration: none;
}

.btn {
  padding: 8px 12px;
  border: 1px solid var(--btn-border);
  background: var(--btn-bg);
  color: var(--btn-text);
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.12);
}

.btn:hover {
  filter: brightness(0.98);
}

.btn:active {
  filter: brightness(0.95);
}

.btnRun {
  background: #1f883d;
  border-color: #1a7f37;
  color: #ffffff;
}

.btnRun:hover {
  background: #1a7f37;
  opacity: 1;
}

.btnRun:active {
  background: #166534;
  opacity: 1;
}

.workspace {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 16px;
}

.guide {
  margin: 0;
}

.guide-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.guide-link {
  color: var(--link);
  text-decoration: none;
  font-size: 13px;
}

.guide-body {
  margin: 8px 0 0;
  padding: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  overflow-wrap: anywhere;
  font-size: 13px;
  line-height: 1.6;
  border-radius: 10px;
}

.guideDiffDetails {
  margin-top: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  background: var(--surface-2);
}

.guideDiffDetails > summary {
  cursor: pointer;
  font-weight: 600;
}

.diffControls {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  flex-wrap: wrap;
  margin: 0 0 10px;
}

.diffView {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--code-bg);
  color: var(--code-text);
}

.diffLine {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  padding: 2px 10px;
  font-family: var(--font-family-mono);
  font-size: 12px;
  line-height: 1.6;
  white-space: pre;
}

.diffSign {
  opacity: 0.85;
}

.diffAdd {
  background: color-mix(in srgb, #2ea043 18%, transparent);
}

.diffDel {
  background: color-mix(in srgb, #f85149 18%, transparent);
}

.diffEq {
  background: transparent;
}

.diffHint {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.guide-body h3 {
  margin: 10px 0 6px;
  font-size: 14px;
}

.guide-body p {
  margin: 6px 0;
}

.guide-body ul {
  margin: 6px 0;
  padding-left: 18px;
}

.guide-body li {
  margin: 2px 0;
}

.guide-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  color: var(--code-text);
}

.guide-body pre {
  margin: 8px 0;
  padding: 0;
  border: 1px solid var(--code-border);
  background: transparent;
  overflow: auto;
  border-radius: 10px;
}

.guide-body pre code {
  display: block;
  white-space: pre;
}

@media (min-width: 1100px) {
  .workspace {
    /* guide | sample | my-code */
    grid-template-columns: minmax(280px, 0.9fr) 1fr 1fr;
    align-items: start;
  }
}

.col {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.h2 {
  margin: 0 0 8px;
  font-size: 16px;
}

.iframeWrap {
  border: 1px solid var(--border);
  background: var(--surface);
  aspect-ratio: 3 / 4;
  border-radius: 12px;
  overflow: hidden;
}

/* Controls (theme/editor/code-theme) inside the myTabs row */
.myTabs {
  flex-wrap: wrap;
  align-items: center;
}

.myTabs .sideControls {
  margin-left: auto;
  display: flex;
  gap: 10px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.myTabs .controlGroup {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

@media (max-width: 700px) {
  .myTabs .sideControls {
    width: 100%;
    margin-left: 0;
    justify-content: flex-start;
  }
}

iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--surface);
}

.links {
  margin-top: 8px;
}

.sampleCode {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.sampleCode {
  --sample-editor-bg: var(--code-bg);
  --sample-editor-text: var(--code-text);
}

.tabs {
  display: flex;
  gap: 6px;
  padding: 6px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.tab {
  padding: 6px 10px;
  border: 1px solid var(--border);
  background: var(--tab-bg);
  color: var(--text);
  border-radius: 999px;
  cursor: pointer;
  font-size: 12px;
}

.tab[aria-selected="true"] {
  background: var(--tab-active-bg);
  border-color: var(--accent);
}

.codeBody {
  background: var(--sample-editor-bg);
  color: var(--sample-editor-text);
}

.codePane {
  margin: 0;
  padding: 0;
  overflow: hidden;
  user-select: none;
  background: transparent;
  color: inherit;
}

.codePane code {
  display: block;
  padding: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
  white-space: pre;
  overflow: auto;
  user-select: none;
}

/* Sample viewer as read-only CodeMirror (same theme as editor) */
.sampleCode .CodeMirror {
  height: auto;
  background: transparent;
}

.sampleCode .CodeMirror-scroll {
  height: auto;
}

.status {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--muted);
  min-height: 18px;
}

.myEditors {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.myPane {
  padding: 10px;
  background: var(--surface);
}

.jsFiles {
  padding: 6px;
  margin: 0 0 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-2);
  flex-wrap: wrap;
}

.myPane textarea {
  min-height: 220px;
}

textarea {
  width: 100%;
  height: 180px;
  border: 1px solid var(--code-border);
  background: var(--code-bg);
  color: var(--code-text);
  padding: 12px;
  font-family: var(--font-family-mono);
  font-size: 13px;
  line-height: 1.6;
  box-sizing: border-box;
  resize: vertical;
  border-radius: 12px;
}

.editorHeightInput {
  width: 70px;
  text-align: center;
}

.myPane textarea.autoGrow {
  resize: none;
  overflow: hidden;
}

/* CodeMirror (editor) */
.CodeMirror {
  font-family: var(--font-family-mono);
  font-size: 13px;
  line-height: 1.6;
  border: 1px solid var(--code-border);
  border-radius: 12px;
}

/* Auto height like textarea autoGrow */
.CodeMirror {
  height: auto;
}

.CodeMirror-scroll {
  min-height: 220px;
  overflow-y: hidden;
  overflow-x: auto;
}

.btn:focus-visible,
.tab:focus-visible,
.select:focus-visible,
input:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

textarea::selection,
.codePane ::selection {
  background: color-mix(in srgb, var(--accent) 35%, transparent);
}

/* ===== Progress viewer ===== */
.back {
  text-decoration: none;
  font-size: 13px;
}

.sub {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.viewerList {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: calc(100vh - 240px);
  overflow: auto;
  padding-right: 4px;
}

.viewerRow {
  display: grid;
  gap: 2px;
  text-align: left;
  padding: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 12px;
  cursor: pointer;
}

.viewerRow:hover {
  filter: brightness(0.98);
}

.viewerRow.isSelected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 25%, transparent);
}

.viewerRowTitle {
  font-weight: 700;
  font-size: 13px;
  overflow-wrap: anywhere;
}

.viewerRowSub {
  font-size: 12px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.viewerEmpty {
  color: var(--muted);
  font-size: 13px;
  padding: 10px;
  border: 1px dashed var(--border);
  border-radius: 12px;
}

.viewerCode {
  margin-top: 10px;
  height: 60vh;
  min-height: 360px;
}

.viewerCode .CodeMirror {
  height: 100%;
}

@media (max-width: 1099px) {
  .viewerList {
    max-height: none;
  }

  .viewerCode {
    height: 50vh;
    min-height: 320px;
  }
}

/* ===== Error Panel ===== */
.errorPanel {
  margin-top: 12px;
  border: 1px solid var(--color-primitive-red-300);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow);
  animation: slideDown 0.2s ease-out;
}

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

.errorHeader {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: color-mix(in srgb, var(--color-primitive-red-100) 30%, transparent);
  border-bottom: 1px solid var(--color-primitive-red-300);
}

.errorTitle {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primitive-red-800);
}

:root[data-theme="dark"] .errorTitle,
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .errorTitle {
    color: var(--color-primitive-red-300);
  }
}

.errorCloseBtn {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.errorCloseBtn:hover {
  background: color-mix(in srgb, var(--color-primitive-red-200) 40%, transparent);
}

.errorList {
  padding: 10px 14px;
  max-height: 200px;
  overflow-y: auto;
}

.errorItem {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px;
  margin-bottom: 6px;
  border-radius: 8px;
  background: var(--surface-2);
  font-size: 12px;
  line-height: 1.6;
  cursor: pointer;
  transition: background 0.15s;
}

.errorItem:last-child {
  margin-bottom: 0;
}

.errorItem:hover {
  background: color-mix(in srgb, var(--color-primitive-red-100) 20%, var(--surface-2));
}

.errorIcon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.errorIcon.error {
  color: var(--color-primitive-red-600);
}

.errorIcon.warning {
  color: var(--color-primitive-yellow-600);
}

.errorContent {
  flex: 1;
}

.errorLocation {
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}

.errorMessage {
  color: var(--muted);
}

/* CodeMirror error gutter */
.CodeMirror-gutter-wrapper {
  left: -30px !important;
}

.error-marker {
  color: var(--color-primitive-red-600);
  font-weight: 700;
  font-size: 16px;
}

.error-line {
  background: color-mix(in srgb, var(--color-primitive-red-100) 25%, transparent);
}