:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-sunken: #f7f8fa;
  --border: #dfe3ea;
  --border-strong: #c7cdd8;
  --text: #1b1f27;
  --text-muted: #5b6472;
  --text-faint: #838d9c;
  --accent: #2f5fd0;
  --accent-hover: #2751b4;
  --accent-soft: #e8eefc;
  --ok: #1f7a4d;
  --ok-soft: #e3f4ea;
  --warn: #8a5a10;
  --warn-soft: #fbf0da;
  --error: #a72d2d;
  --error-soft: #fbe7e7;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 8px 24px rgba(16, 24, 40, 0.06);
  --radius: 12px;
  --radius-sm: 8px;
  --doc-font-size: 1rem;
  --ui-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  --mono-font: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
}

:root[data-theme="dark"] {
  --bg: #10131a;
  --surface: #171b23;
  --surface-sunken: #1d222c;
  --border: #2a303c;
  --border-strong: #3a414f;
  --text: #e6e9ef;
  --text-muted: #a4adbd;
  --text-faint: #7d8698;
  --accent: #7ba2f5;
  --accent-hover: #94b4f8;
  --accent-soft: #1e2941;
  --ok: #6fce9f;
  --ok-soft: #14301f;
  --warn: #e2b264;
  --warn-soft: #322612;
  --error: #f08b8b;
  --error-soft: #351b1b;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.3);
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] {
    --bg: #10131a;
    --surface: #171b23;
    --surface-sunken: #1d222c;
    --border: #2a303c;
    --border-strong: #3a414f;
    --text: #e6e9ef;
    --text-muted: #a4adbd;
    --text-faint: #7d8698;
    --accent: #7ba2f5;
    --accent-hover: #94b4f8;
    --accent-soft: #1e2941;
    --ok: #6fce9f;
    --ok-soft: #14301f;
    --warn: #e2b264;
    --warn-soft: #322612;
    --error: #f08b8b;
    --error-soft: #351b1b;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.3);
  }
}

:root[data-size="s"] {
  --doc-font-size: 0.9375rem;
}

:root[data-size="l"] {
  --doc-font-size: 1.1875rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: var(--ui-font);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.6rem 1rem;
  background: var(--surface);
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 10;
}

.skip-link:focus {
  left: 0;
}

/* Top bar */

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem clamp(1rem, 4vw, 2.25rem);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

:root[data-theme="dark"] .brand__mark {
  color: #0e1219;
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] .brand__mark {
    color: #0e1219;
  }
}

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

.brand__title {
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.brand__subtitle {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.topbar__tools {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* Controls */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-sunken);
  color: var(--text-muted);
  font-size: 0.8125rem;
  white-space: nowrap;
}

.pill__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}

.pill--ok {
  color: var(--ok);
  background: var(--ok-soft);
  border-color: transparent;
}

.pill--warn {
  color: var(--warn);
  background: var(--warn-soft);
  border-color: transparent;
}

.pill--error {
  color: var(--error);
  background: var(--error-soft);
  border-color: transparent;
}

.segmented {
  display: inline-flex;
  padding: 2px;
  gap: 2px;
  background: var(--surface-sunken);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.segmented__btn {
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.8125rem;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
}

.segmented__btn:hover {
  color: var(--text);
}

.segmented__btn[aria-pressed="true"] {
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.12);
}

.segmented__sup {
  font-size: 0.6875em;
  vertical-align: super;
}

.icon-btn,
.btn {
  font: inherit;
  cursor: pointer;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 0.4rem 0.75rem;
  font-size: 0.8125rem;
  white-space: nowrap;
}

.icon-btn:hover,
.btn--quiet:hover {
  border-color: var(--border-strong);
  background: var(--surface-sunken);
}

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 550;
  padding: 0 1.25rem;
  height: 3rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

:root[data-theme="dark"] .btn--primary {
  color: #0e1219;
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] .btn--primary {
    color: #0e1219;
  }
}

.btn--primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn:disabled {
  opacity: 0.65;
  cursor: progress;
}

.btn__spinner {
  display: none;
  width: 0.875rem;
  height: 0.875rem;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: spin 0.7s linear infinite;
}

.is-loading .btn__spinner {
  display: inline-block;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn__spinner {
    animation-duration: 2s;
  }
}

.text-link {
  color: var(--accent);
  font-size: 0.8125rem;
  text-decoration: none;
  border: 0;
  background: none;
  padding: 0;
  cursor: pointer;
  font-family: inherit;
}

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

.text-link--quiet {
  color: var(--text-muted);
}

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

/* Layout */

.page {
  flex: 1;
  width: 100%;
  max-width: 60rem;
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 2rem) clamp(1rem, 4vw, 2rem) 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

/* Search */

.search {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.search__label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

.search__row {
  display: flex;
  gap: 0.6rem;
}

.search__input {
  flex: 1;
  min-width: 0;
  height: 3rem;
  padding: 0 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  font-family: var(--mono-font);
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.search__input::placeholder {
  color: var(--text-faint);
}

.search__input:focus {
  border-color: var(--accent);
  outline: 2px solid var(--accent-soft);
  outline-offset: 0;
}

.search__input[aria-invalid="true"] {
  border-color: var(--error);
}

.hint {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

kbd {
  font-family: var(--mono-font);
  font-size: 0.75em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  border: 1px solid var(--border-strong);
  background: var(--surface-sunken);
}

.recent {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border);
}

.recent__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin-right: 0.25rem;
}

.recent__items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.chip {
  font-family: var(--mono-font);
  font-size: 0.75rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-sunken);
  color: var(--text-muted);
  cursor: pointer;
}

.chip:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

/* Status */

.status {
  display: flex;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--border-strong);
}

.status--ok {
  border-left-color: var(--ok);
}

.status--warn {
  border-left-color: var(--warn);
}

.status--error {
  border-left-color: var(--error);
}

.status__icon {
  display: grid;
  place-items: center;
  flex: none;
  width: 1.5rem;
  height: 1.5rem;
  margin-top: 0.1rem;
  border-radius: 50%;
  font-size: 0.875rem;
  font-weight: 700;
  background: var(--surface-sunken);
  color: var(--text-muted);
}

.status--ok .status__icon {
  background: var(--ok-soft);
  color: var(--ok);
}

.status--warn .status__icon {
  background: var(--warn-soft);
  color: var(--warn);
}

.status--error .status__icon {
  background: var(--error-soft);
  color: var(--error);
}

.status__body {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}

.status__title {
  margin: 0;
  font-weight: 600;
}

.status__message {
  margin: 0;
  color: var(--text-muted);
  max-width: 62ch;
}

.status__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-family: var(--mono-font);
  font-size: 0.75rem;
  color: var(--text-faint);
}

.status__meta span {
  padding: 0.15rem 0.45rem;
  border-radius: 6px;
  background: var(--surface-sunken);
  border: 1px solid var(--border);
}

.status__body .btn {
  align-self: flex-start;
  margin-top: 0.25rem;
}

/* Result */

.result__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-sunken);
  border-radius: var(--radius) var(--radius) 0 0;
}

.result__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--mono-font);
  min-width: 0;
}

.result__meta strong {
  color: var(--text);
  font-weight: 600;
}

.result__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Document typography */

.doc,
.raw {
  padding: clamp(1.25rem, 4vw, 2.5rem);
  max-width: 74ch;
  margin: 0 auto;
}

.doc {
  font-size: var(--doc-font-size);
  line-height: 1.75;
  overflow-wrap: break-word;
}

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

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

.doc h1,
.doc h2,
.doc h3,
.doc h4,
.doc h5,
.doc h6 {
  line-height: 1.3;
  margin: 2em 0 0.6em;
  letter-spacing: -0.01em;
}

.doc h1 {
  font-size: 1.6em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--border);
}

.doc h2 {
  font-size: 1.3em;
}

.doc h3 {
  font-size: 1.1em;
}

.doc h4,
.doc h5,
.doc h6 {
  font-size: 1em;
  color: var(--text-muted);
}

.doc p {
  margin: 0 0 1.1em;
}

.doc ul,
.doc ol {
  margin: 0 0 1.1em;
  padding-left: 1.4em;
}

.doc li {
  margin-bottom: 0.35em;
}

.doc li > ul,
.doc li > ol {
  margin: 0.35em 0 0;
}

.doc blockquote {
  margin: 0 0 1.1em;
  padding: 0.2em 1em;
  border-left: 3px solid var(--border-strong);
  color: var(--text-muted);
}

.doc hr {
  height: 1px;
  border: 0;
  background: var(--border);
  margin: 2em 0;
}

.doc a {
  color: var(--accent);
}

.doc code {
  font-family: var(--mono-font);
  font-size: 0.875em;
  padding: 0.15em 0.35em;
  border-radius: 5px;
  background: var(--surface-sunken);
  border: 1px solid var(--border);
}

.doc pre {
  margin: 0 0 1.1em;
  padding: 0.9em 1em;
  overflow-x: auto;
  border-radius: var(--radius-sm);
  background: var(--surface-sunken);
  border: 1px solid var(--border);
}

.doc pre code {
  padding: 0;
  border: 0;
  background: none;
  font-size: 0.8125em;
  line-height: 1.6;
}

.doc table {
  width: 100%;
  margin: 0 0 1.1em;
  border-collapse: collapse;
  font-size: 0.9375em;
  display: block;
  overflow-x: auto;
}

.doc th,
.doc td {
  border: 1px solid var(--border);
  padding: 0.45em 0.7em;
  text-align: left;
  vertical-align: top;
}

.doc th {
  background: var(--surface-sunken);
  font-weight: 600;
}

.doc tbody tr:nth-child(even) td {
  background: color-mix(in srgb, var(--surface-sunken) 55%, transparent);
}

.doc .align-center {
  text-align: center;
}

.doc .align-right {
  text-align: right;
}

.raw {
  font-family: var(--mono-font);
  font-size: calc(var(--doc-font-size) * 0.85);
  line-height: 1.65;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  margin: 0 auto;
  color: var(--text-muted);
}

/* Empty state */

.empty {
  padding: 2.5rem 1.5rem;
  text-align: center;
}

.empty__title {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 600;
}

.empty__text {
  margin: 0 auto;
  max-width: 46ch;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* Footer + toast */

.footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  padding: 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 0.8125rem;
}

.footer__sep {
  color: var(--border-strong);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%);
  padding: 0.6rem 1rem;
  border-radius: 999px;
  background: var(--text);
  color: var(--surface);
  font-size: 0.8125rem;
  box-shadow: var(--shadow);
  z-index: 20;
}

@media (max-width: 34rem) {
  .search__row {
    flex-direction: column;
  }

  .btn--primary {
    justify-content: center;
  }

  .brand__subtitle {
    display: none;
  }
}