:root {
  color-scheme: light;
  --ink: #172121;
  --muted: #5c6868;
  --paper: #f7f8f5;
  --panel: #ffffff;
  --line: #d8ded8;
  --green: #1d6b55;
  --green-dark: #124838;
  --coral: #d85b3f;
  --gold: #b98b22;
  --blue: #315b8f;
  --shadow: 0 18px 50px rgba(23, 33, 33, 0.09);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

button,
textarea,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.site-header {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  padding: 18px clamp(18px, 4vw, 56px);
}

.brand {
  align-items: center;
  color: inherit;
  display: inline-flex;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--green);
  border-radius: 8px;
  color: white;
  display: inline-flex;
  font-weight: 800;
  height: 40px;
  justify-content: center;
  width: 40px;
}

.brand strong,
.brand small {
  display: block;
}

.brand small,
.privacy-note,
.eyebrow,
.quick-stats small,
.limit-note,
footer {
  color: var(--muted);
}

.privacy-note {
  margin: 0;
}

main {
  margin: 0 auto;
  max-width: 1480px;
  padding: 34px clamp(18px, 4vw, 56px) 42px;
}

.tool-intro {
  align-items: end;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.75fr);
  margin-bottom: 30px;
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0 0 8px;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 4.6rem);
  line-height: 1;
  margin-bottom: 18px;
  max-width: 980px;
}

h2 {
  font-size: 1rem;
  margin-bottom: 12px;
}

.lede {
  color: #354242;
  font-size: 1.12rem;
  margin-bottom: 0;
  max-width: 820px;
}

.quick-stats {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
}

.quick-stats div {
  min-width: 0;
  padding: 18px;
}

.quick-stats div + div {
  border-left: 1px solid var(--line);
}

.quick-stats span {
  display: block;
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1;
}

.workspace {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(260px, 1fr) minmax(240px, 310px) minmax(260px, 1fr);
}

.editor-column,
.options-column,
.inspection,
.reference article {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.editor-column,
.options-column {
  min-width: 0;
  padding: 18px;
}

.panel-heading {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.mini-actions {
  display: flex;
  gap: 8px;
}

.panel-heading h2 {
  margin-bottom: 0;
}

.limit-note {
  font-size: 0.9rem;
  margin-bottom: 12px;
}

textarea {
  background: #fbfcfa;
  border: 1px solid #cbd4ce;
  border-radius: 8px;
  color: var(--ink);
  display: block;
  min-height: 430px;
  outline: none;
  padding: 14px;
  resize: vertical;
  width: 100%;
}

textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(29, 107, 85, 0.16);
}

.options-column label {
  align-items: start;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 10px;
  padding: 13px 0;
}

.preset-group {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 10px;
}

.preset-button {
  background: #fbfcfa;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  min-height: 40px;
  padding: 8px 10px;
}

.preset-button.active {
  background: rgba(29, 107, 85, 0.1);
  border-color: var(--green);
  color: var(--green-dark);
  font-weight: 800;
}

.options-column input {
  accent-color: var(--green);
  margin-top: 4px;
}

.button-row {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 1fr;
  margin-top: 14px;
}

.primary-button,
.ghost-button,
.text-button {
  border-radius: 8px;
  min-height: 42px;
  padding: 10px 14px;
}

.primary-button {
  background: var(--green);
  border: 1px solid var(--green);
  color: white;
  font-weight: 800;
}

.primary-button:hover {
  background: var(--green-dark);
}

.ghost-button,
.text-button {
  background: white;
  border: 1px solid var(--line);
  color: var(--ink);
}

.text-button {
  min-height: 34px;
  padding: 6px 10px;
}

.status {
  color: var(--green);
  min-height: 24px;
  margin: 10px 0 0;
}

.status.warning {
  color: var(--coral);
}

.summary {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 12px 0 0;
}

.summary div {
  background: #fbfcfa;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.summary dt {
  color: var(--muted);
  font-size: 0.78rem;
}

.summary dd {
  font-size: 1.28rem;
  font-weight: 800;
  margin: 2px 0 0;
}

.inspection {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(220px, 0.5fr) minmax(0, 1fr);
  margin-top: 18px;
  padding: 22px;
}

.inspection p {
  color: var(--muted);
  margin-bottom: 0;
}

pre {
  background: #101817;
  border-radius: 8px;
  color: #f5faf6;
  margin: 0;
  min-height: 120px;
  overflow: auto;
  padding: 16px;
  white-space: pre-wrap;
  word-break: break-word;
}

.marker {
  background: rgba(216, 91, 63, 0.22);
  border: 1px solid rgba(216, 91, 63, 0.7);
  border-radius: 5px;
  color: #ffd3ca;
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 800;
  margin: 0 2px;
  padding: 0 5px;
}

.reference {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 18px;
}

.reference article {
  padding: 22px;
}

.reference article:nth-child(2) {
  border-top: 4px solid var(--coral);
}

.reference article:nth-child(3) {
  border-top: 4px solid var(--blue);
}

.reference article:first-child {
  border-top: 4px solid var(--gold);
}

.reference p {
  color: var(--muted);
  margin-bottom: 0;
}

.content-guide {
  margin-top: 36px;
}

.guide-intro {
  max-width: 850px;
}

.guide-intro h2 {
  font-size: clamp(1.7rem, 3vw, 2.55rem);
  line-height: 1.1;
  margin-bottom: 14px;
}

.guide-intro p,
.guide-grid p,
.use-cases li {
  color: var(--muted);
}

.guide-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 22px;
}

.guide-grid article,
.use-cases {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 22px;
}

.guide-grid h3,
.use-cases h3 {
  font-size: 1rem;
  margin: 0 0 10px;
}

.guide-grid p {
  margin-bottom: 0;
}

.use-cases {
  margin-top: 18px;
}

.use-cases ul {
  display: grid;
  gap: 10px 28px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding-left: 20px;
}

.shelf-teaser {
  align-items: start;
  background: var(--ink);
  border-radius: 8px;
  color: #f5faf6;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(250px, 0.8fr) minmax(0, 1.2fr);
  margin-top: 36px;
  padding: clamp(24px, 5vw, 42px);
}

.shelf-teaser .eyebrow,
.shelf-teaser p {
  color: #c8d7d0;
}

.shelf-teaser h2 {
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  line-height: 1.1;
  margin-bottom: 14px;
}

.tool-roadmap {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tool-roadmap article {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  padding: 18px;
}

.tool-roadmap span {
  color: #f0c35a;
  display: block;
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.tool-roadmap h3 {
  font-size: 1rem;
  margin: 0 0 8px;
}

.tool-roadmap p {
  margin-bottom: 0;
}

.pro-note {
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  grid-column: 1 / -1;
  padding-top: 22px;
}

.pro-note h3 {
  font-size: 1rem;
  margin: 0 0 8px;
}

.pro-note p {
  margin-bottom: 0;
  max-width: 900px;
}

footer {
  border-top: 1px solid var(--line);
  padding: 22px clamp(18px, 4vw, 56px);
}

.footer-inner {
  align-items: center;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1480px;
}

footer p {
  margin: 0;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

footer a,
.policy-page a {
  color: var(--green);
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.policy-page {
  max-width: 920px;
}

.policy-page article {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: clamp(20px, 4vw, 38px);
}

.policy-page h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.policy-page h2 {
  font-size: 1.15rem;
  margin-top: 28px;
}

.policy-page li + li {
  margin-top: 8px;
}

@media (max-width: 1080px) {
  .tool-intro,
  .workspace,
  .inspection,
  .reference,
  .guide-grid,
  .use-cases ul,
  .shelf-teaser,
  .tool-roadmap {
    grid-template-columns: 1fr;
  }

  textarea {
    min-height: 310px;
  }
}

@media (max-width: 620px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  main {
    padding-top: 24px;
  }

  h1 {
    font-size: 2.25rem;
  }

  .quick-stats {
    grid-template-columns: 1fr;
  }

  .quick-stats div + div {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .button-row {
    grid-template-columns: 1fr;
  }

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