:root {
  color-scheme: light;
  --ink: #17212b;
  --muted: #5b6976;
  --line: #d7dee5;
  --paper: #f7f9fb;
  --panel: #ffffff;
  --accent: #0f7a5f;
  --accent-dark: #0b5f4a;
  --blue: #2457c5;
  --warn: #9b4a08;
}

* {
  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;
}

a {
  color: inherit;
}

.topbar,
.footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.topbar {
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 850;
  text-decoration: none;
}

nav,
.footer {
  color: var(--muted);
  font-size: 14px;
}

nav {
  display: flex;
  gap: 16px;
}

nav a,
.footer a {
  text-decoration: none;
}

.workspace {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 20px 24px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 28px;
  align-items: start;
}

.intro {
  min-height: 520px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  max-width: 720px;
  font-size: clamp(38px, 6vw, 64px);
}

h2 {
  font-size: 22px;
}

.lede {
  margin: 18px 0 0;
  max-width: 650px;
  color: var(--muted);
  font-size: 19px;
}

.quick-links,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.quick-links a,
.button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 14px;
  background: #fff;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

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

.tool-panel,
.score-card,
.output-grid article,
.notice,
.band {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.tool-panel {
  padding: 20px;
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 750;
}

textarea,
input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  color: var(--ink);
  background: #fff;
  font: inherit;
  resize: vertical;
}

textarea:focus,
input:focus {
  outline: 3px solid rgba(15, 122, 95, 0.16);
  border-color: var(--accent);
}

.results {
  max-width: 1180px;
  margin: 0 auto;
  padding: 8px 20px 24px;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 16px;
}

.score-card {
  padding: 22px;
}

.score {
  margin: 8px 0;
  color: var(--blue);
  font-size: 64px;
  font-weight: 900;
  line-height: 1;
}

.score-card p:last-child {
  margin: 0;
  color: var(--muted);
}

.output-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.output-grid article,
.notice,
.band {
  padding: 20px;
}

ul {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

pre {
  min-height: 210px;
  margin: 14px 0 0;
  white-space: pre-wrap;
  color: var(--muted);
  font: 14px/1.55 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.notice,
.seo-page {
  max-width: 1180px;
  margin: 16px auto 0;
}

.notice {
  padding: 20px;
}

.notice p,
.band p {
  color: var(--muted);
}

.seo-page {
  padding: 44px 20px;
}

.seo-page section:first-child {
  padding: 28px 0 36px;
}

.band {
  margin-top: 16px;
}

@media (max-width: 860px) {
  .workspace,
  .results,
  .output-grid {
    grid-template-columns: 1fr;
  }

  .intro {
    min-height: auto;
  }
}

@media (max-width: 620px) {
  .topbar,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    flex-wrap: wrap;
  }
}