:root {
  color-scheme: light;
  --bg: #f7f3ff;
  --panel: #ffffff;
  --panel-alt: #fff7ed;
  --ink: #171321;
  --muted: #655f73;
  --line: #ddd5ee;
  --accent: #e94f8a;
  --accent-strong: #c92d70;
  --accent-alt: #11a7a5;
  --code-bg: #f6f8fa;
  --shadow: 0 14px 34px rgba(67, 43, 107, 0.13);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 10% 0%, rgba(255, 176, 32, 0.24), transparent 28%),
    radial-gradient(circle at 92% 8%, rgba(17, 167, 165, 0.2), transparent 30%),
    linear-gradient(135deg, #fff8ec 0%, #f7f3ff 46%, #ecfbfb 100%);
  color: var(--ink);
}

button,
textarea {
  font: inherit;
}

.shell {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 100vh;
  padding: 18px;
  gap: 14px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  border-bottom: 1px solid rgba(221, 213, 238, 0.7);
  padding-bottom: 12px;
}

.brand {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 12px;
}

.logo {
  position: relative;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 50px;
  height: 50px;
  border: 2px solid rgba(23, 19, 33, 0.12);
  border-radius: 13px;
  background:
    linear-gradient(135deg, #fff1a8 0%, #ff7caf 48%, #6ee7e3 100%);
  box-shadow:
    0 10px 22px rgba(233, 79, 138, 0.24),
    inset 0 -2px 0 rgba(23, 19, 33, 0.12);
  transform: rotate(-4deg);
}

.logo::before {
  position: absolute;
  content: "";
  top: 7px;
  right: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow:
    -25px 24px 0 rgba(255, 255, 255, 0.72),
    -7px 30px 0 rgba(255, 255, 255, 0.55);
}

.logo-mark {
  color: #ffffff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1;
  text-shadow: 0 2px 0 rgba(23, 19, 33, 0.18);
}

.logo-arrow {
  position: absolute;
  right: 8px;
  bottom: 8px;
  width: 13px;
  height: 13px;
  border-right: 4px solid #ffffff;
  border-bottom: 4px solid #ffffff;
  filter: drop-shadow(0 2px 0 rgba(23, 19, 33, 0.18));
  transform: rotate(-45deg);
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  line-height: 1.15;
  letter-spacing: 0;
}

.topbar p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.95rem;
}

.actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.export-options {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-right: 10px;
  border-right: 1px solid var(--line);
}

.option-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--muted);
  font-size: 0.84rem;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.option-toggle input[type="checkbox"] {
  accent-color: #4b2c83;
  width: 14px;
  height: 14px;
  cursor: pointer;
  flex-shrink: 0;
}

.segmented {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(52px, 1fr));
  min-height: 40px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
}

.segmented input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  color: var(--muted);
  font-size: 0.84rem;
  cursor: pointer;
}

.segmented input:checked + label {
  background: #4b2c83;
  color: #ffffff;
  font-weight: 650;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
  color: var(--ink);
  padding: 0 12px;
  cursor: pointer;
  transition:
    border-color 120ms ease,
    background 120ms ease,
    transform 120ms ease;
}

button:hover {
  border-color: #c6b8e4;
  background: #ffffff;
}

button:active {
  transform: translateY(1px);
}

button svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

button.primary {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  color: #fff;
  font-weight: 650;
  box-shadow: 0 8px 18px rgba(233, 79, 138, 0.24);
}

button.primary:hover {
  border-color: var(--accent-strong);
  background: linear-gradient(135deg, var(--accent-strong), #6528c7);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(320px, 1fr);
  min-height: 0;
  gap: 14px;
}

.pane {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  border: 1px solid rgba(221, 213, 238, 0.95);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  border-bottom: 1px solid var(--line);
  padding: 0 14px;
  background:
    linear-gradient(90deg, rgba(255, 247, 237, 0.95), rgba(247, 243, 255, 0.95));
}

.pane-header h2 {
  font-size: 0.9rem;
  line-height: 1.2;
}

.status {
  min-width: 72px;
  text-align: right;
  color: var(--muted);
  font-size: 0.8rem;
  white-space: nowrap;
}

textarea {
  width: 100%;
  height: 100%;
  min-height: 420px;
  resize: none;
  border: 0;
  outline: 0;
  padding: 18px;
  background: #1c1730;
  color: #f7f1ff;
  caret-color: #ffffff;
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.92rem;
  line-height: 1.55;
  tab-size: 2;
}

.rendered {
  min-height: 420px;
  overflow: auto;
  padding: 22px;
  background: #fff;
}

.markdown-body {
  --md-bg: #ffffff;
  --md-ink: #24292f;
  --md-heading: #0f172a;
  --md-muted: #57606a;
  --md-line: #d0d7de;
  --md-rule: #d8dee4;
  --md-code-bg: #eff3f6;
  --md-pre-bg: #f6f8fa;
  --md-link: #0969da;
  background: var(--md-bg);
  color: #24292f;
  color: var(--md-ink);
  font-family:
    Aptos, Calibri, "Segoe UI", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
}

.markdown-body.theme-dark {
  --md-bg: #1f2328;
  --md-ink: #eef2f7;
  --md-heading: #ffffff;
  --md-muted: #c8d1dc;
  --md-line: #57606a;
  --md-rule: #6b7280;
  --md-code-bg: #353b45;
  --md-pre-bg: #20242b;
  --md-link: #8cc2ff;
}

.markdown-body.theme-dark .hljs {
  color: #e6edf3;
  background: transparent;
}

.markdown-body.theme-dark .hljs-keyword,
.markdown-body.theme-dark .hljs-selector-tag,
.markdown-body.theme-dark .hljs-built_in {
  color: #ff7bce;
}

.markdown-body.theme-dark .hljs-string,
.markdown-body.theme-dark .hljs-regexp,
.markdown-body.theme-dark .hljs-attr {
  color: #9fdf8f;
}

.markdown-body.theme-dark .hljs-title,
.markdown-body.theme-dark .hljs-title.function_,
.markdown-body.theme-dark .hljs-function {
  color: #7dd3fc;
}

.markdown-body.theme-dark .hljs-number,
.markdown-body.theme-dark .hljs-literal,
.markdown-body.theme-dark .hljs-variable,
.markdown-body.theme-dark .hljs-template-variable {
  color: #f7c66f;
}

.markdown-body.theme-dark .hljs-comment,
.markdown-body.theme-dark .hljs-quote {
  color: #9aa4b2;
  font-style: italic;
}

.markdown-body.theme-dark .hljs-meta,
.markdown-body.theme-dark .hljs-type,
.markdown-body.theme-dark .hljs-class .hljs-title {
  color: #c7a6ff;
}

.markdown-body > :first-child {
  margin-top: 0;
}

.markdown-body > :last-child {
  margin-bottom: 0;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  margin: 1.25em 0 0.55em;
  line-height: 1.25;
  color: var(--md-heading);
}

.markdown-body h1 {
  padding-bottom: 0.25em;
  border-bottom: 1px solid var(--md-rule);
  font-size: 1.75em;
}

.markdown-body h2 {
  padding-bottom: 0.2em;
  border-bottom: 1px solid var(--md-rule);
  font-size: 1.35em;
}

.markdown-body h3 {
  font-size: 1.12em;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body pre,
.markdown-body table {
  margin: 0 0 1em;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.55em;
}

.markdown-body li + li {
  margin-top: 0.2em;
}

.markdown-body a {
  color: var(--md-link);
}

.markdown-body blockquote {
  border-left: 4px solid var(--md-line);
  color: var(--md-muted);
  padding: 0.1em 1em;
}

.markdown-body :not(pre) > code {
  border: 1px solid var(--md-line);
  border-radius: 5px;
  background-color: var(--md-code-bg);
  color: var(--md-heading);
  padding: 0.15em 0.35em;
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}

.markdown-body pre {
  border: 1px solid var(--md-rule);
  border-radius: 7px;
  background: var(--md-pre-bg);
  padding: 14px;
  overflow: auto;
  white-space: pre;
}

.markdown-body pre code {
  display: block;
  background: transparent;
  padding: 0;
  font-size: 0.88em;
  line-height: 1.55;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
}

.markdown-body th,
.markdown-body td {
  border: 1px solid var(--md-line);
  padding: 7px 9px;
  vertical-align: top;
}

.markdown-body th {
  background: var(--md-pre-bg);
  font-weight: 700;
}

.markdown-body hr {
  border: 0;
  border-top: 1px solid var(--md-rule);
  margin: 1.4em 0;
}

.markdown-body img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0.75em 0 1em;
  border-radius: 6px;
}

.copy-flash {
  color: var(--accent-strong);
  font-weight: 650;
}

@media (max-width: 880px) {
  .shell {
    padding: 12px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .actions {
    width: 100%;
  }

  button.primary {
    flex: 1;
  }

  .workspace {
    grid-template-columns: 1fr;
  }

  textarea,
  .rendered {
    min-height: 42vh;
  }
}