:root {
  --bg: #f7f8f5;
  --surface: #ffffff;
  --surface-alt: #fbfcfa;
  --text: #16201b;
  --muted: #5d6a62;
  --subtle: #eef3ef;
  --border: #d7ded8;
  --primary: #1f6b4a;
  --primary-dark: #154b35;
  --info: #245c8a;
  --warning: #b7791f;
  --critical: #b42318;
  --neutral: #48524b;
  --shadow: 0 14px 40px rgba(22, 32, 27, 0.08);
  --radius: 8px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--primary);
  font-weight: 750;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
.button-link {
  min-height: 42px;
  border: 1px solid var(--primary);
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  padding: 0.68rem 0.95rem;
  cursor: pointer;
  font-weight: 800;
}

button:hover,
.button-link:hover {
  background: var(--primary-dark);
  text-decoration: none;
}

button.secondary,
.button-link.secondary {
  background: #fff;
  color: var(--primary);
}

button.secondary:hover,
.button-link.secondary:hover {
  background: #eef5f0;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 0.72rem 0.78rem;
}

textarea {
  resize: vertical;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(36, 92, 138, 0.28);
  outline-offset: 2px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 860px;
  margin-bottom: 0.65rem;
  font-size: clamp(2rem, 4.6vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0.35rem;
  font-size: clamp(1.35rem, 2vw, 2rem);
  line-height: 1.12;
}

h3 {
  margin-bottom: 0.35rem;
  font-size: 1.02rem;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -44px;
  z-index: 10;
  border-radius: 6px;
  background: var(--text);
  color: #fff;
  padding: 8px 10px;
}

.skip-link:focus {
  top: 12px;
}

.site-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}

.nav-rail {
  position: sticky;
  top: 0;
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 26px;
  border-right: 1px solid var(--border);
  background: #eef3ef;
  padding: 24px 20px;
}

.brand {
  display: grid;
  gap: 2px;
  align-items: start;
  color: var(--text);
}

.brand:hover {
  text-decoration: none;
}

.brand-logo {
  width: min(178px, 100%);
  height: auto;
  flex: 0 1 auto;
}

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

.brand small {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 650;
}

.nav-rail nav {
  display: grid;
  align-content: start;
  gap: 6px;
}

.nav-rail nav a {
  border-radius: 7px;
  color: var(--neutral);
  padding: 0.72rem 0.78rem;
}

.nav-rail nav a:hover,
.nav-rail nav a.is-active {
  background: #fff;
  color: var(--primary-dark);
  text-decoration: none;
}

.rail-note,
.rail-card,
.tool-card,
.result-panel,
.tool-switcher article,
.content-card,
.product-shot,
.ad-package {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.rail-note {
  display: grid;
  gap: 4px;
  padding: 14px;
  color: var(--muted);
  font-size: 0.86rem;
}

.rail-note strong {
  color: var(--text);
}

.work-area {
  min-width: 0;
  padding: 30px clamp(18px, 4vw, 52px) 46px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
  gap: 28px;
  align-items: center;
  margin-bottom: 24px;
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 0.42rem;
  color: var(--info);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.lede {
  max-width: 780px;
  color: var(--muted);
  font-size: 1.08rem;
}

.product-shot {
  overflow: hidden;
  background: #fff;
}

.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: start;
}

.tool-main {
  min-width: 0;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 14px;
}

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

.secondary-link {
  white-space: nowrap;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  padding: 0.55rem 0.72rem;
}

.tool-card {
  padding: 18px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

label {
  display: grid;
  gap: 0.36rem;
  color: var(--text);
  font-weight: 700;
}

.wide {
  grid-column: 1 / -1;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 14px;
}

.fine-print,
.helper,
.empty-state {
  color: var(--muted);
  font-size: 0.88rem;
}

.result-panel {
  min-height: 148px;
  margin-top: 16px;
  padding: 18px;
}

.result-grid {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 18px;
}

.score-block {
  display: grid;
  align-content: start;
  gap: 8px;
}

.score-number {
  font-variant-numeric: tabular-nums;
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
}

.meter {
  width: 100%;
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: #e8eee8;
}

.meter span {
  display: block;
  width: var(--score, 0%);
  height: 100%;
  border-radius: inherit;
  background: var(--primary);
}

.pill-row,
.tool-switcher,
.card-grid {
  display: grid;
  gap: 12px;
}

.pill-row {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.score-pill {
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface-alt);
  padding: 10px;
}

.score-pill strong,
.score-pill span {
  display: block;
}

.score-pill strong {
  font-variant-numeric: tabular-nums;
  font-size: 1.3rem;
}

.score-pill span {
  color: var(--muted);
  font-size: 0.78rem;
}

.findings-list,
.check-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
}

.findings-list li::marker {
  color: var(--warning);
}

.output-box {
  overflow: auto;
  max-height: 360px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #f9fbf8;
  padding: 14px;
  white-space: pre-wrap;
  color: var(--text);
  font: 0.9rem/1.55 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

.tool-switcher {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 18px;
}

.tool-switcher article,
.content-card,
.ad-package {
  padding: 16px;
}

.tool-switcher p,
.content-card p,
.ad-package p {
  color: var(--muted);
}

.command-rail {
  position: sticky;
  top: 18px;
  display: grid;
  gap: 14px;
}

.rail-card {
  padding: 16px;
}

.stat-list {
  display: grid;
  gap: 8px;
  margin: 0 0 12px;
}

.stat-list div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}

dt {
  color: var(--muted);
}

dd {
  margin: 0;
  font-weight: 850;
  text-align: right;
}

.sponsor-slot {
  background: #f3f8fb;
}

.sponsor-slot span {
  color: var(--info);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.sponsor-slot strong {
  display: block;
  margin: 6px 0;
}

.page-header {
  max-width: 920px;
  margin-bottom: 22px;
}

.page-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 30px clamp(18px, 4vw, 48px) 50px;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  margin-bottom: 30px;
}

.top-nav nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: start;
}

.article-body {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: clamp(18px, 3vw, 30px);
}

.article-body p,
.article-body li {
  color: var(--muted);
}

.article-body h2 {
  margin-top: 1.5rem;
}

.ad-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.content-hero {
  max-width: 980px;
  padding: clamp(28px, 5vw, 64px) 0 26px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding-top: 22px;
  color: var(--muted);
  font-size: 0.86rem;
}

.breadcrumbs a {
  color: var(--neutral);
}

.content-hero h1 {
  max-width: 920px;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
  color: var(--muted);
}

.meta-row span {
  border-left: 3px solid var(--border);
  padding-left: 10px;
}

.intent-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.intent-strip span,
.page-grid article > span {
  display: inline-flex;
  width: fit-content;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--muted);
  background: var(--surface-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.phase1-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: start;
}

.phase1-main {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.answer-card {
  border: 1px solid rgba(31, 107, 74, 0.25);
  border-radius: var(--radius);
  background: #eef7f1;
  padding: clamp(18px, 3vw, 28px);
}

.answer-card p:last-child {
  max-width: 760px;
  margin-bottom: 0;
  font-size: 1.08rem;
}

.content-block {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: clamp(18px, 3vw, 28px);
  box-shadow: var(--shadow);
}

.content-block h2 {
  margin-top: 0;
}

.content-block p {
  color: var(--muted);
}

.content-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.table-wrap {
  overflow-x: auto;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin-top: 12px;
}

.content-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.content-table th,
.content-table td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.content-table th {
  background: #eef3ef;
  color: var(--text);
}

.content-table td {
  color: var(--muted);
}

.example-box,
.decision-note {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: 7px;
  background: #f9fbf8;
  padding: 12px 14px;
}

.example-box p,
.decision-note p {
  margin: 6px 0 0;
}

.faq-block {
  display: grid;
  gap: 10px;
}

.faq-block details {
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.faq-block summary {
  cursor: pointer;
  font-weight: 800;
}

.faq-block p {
  margin-top: 10px;
  margin-bottom: 0;
}

.source-block ul {
  display: grid;
  gap: 8px;
  margin-bottom: 0;
  padding-left: 20px;
}

.related-card nav {
  display: grid;
  gap: 10px;
}

.related-card a {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  background: #fff;
  text-decoration: none;
  font-weight: 700;
}

.page-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding-bottom: 42px;
}

.page-grid article {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 250px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 20px;
  box-shadow: var(--shadow);
}

.page-grid h2 {
  margin: 0;
  font-size: 1.15rem;
}

.page-grid p {
  color: var(--muted);
}

.page-grid a {
  align-self: end;
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  border-top: 1px solid var(--border);
  padding: 20px clamp(18px, 4vw, 52px);
  color: var(--muted);
}

.site-footer p {
  max-width: 720px;
  margin-bottom: 0;
}

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

@media (max-width: 1080px) {
  .site-shell,
  .tool-layout,
  .content-grid,
  .phase1-layout,
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .nav-rail {
    position: static;
    height: auto;
    grid-template-rows: none;
  }

  .nav-rail nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .command-rail {
    position: static;
  }
}

@media (max-width: 720px) {
  .work-area,
  .page-shell {
    padding-inline: 16px;
  }

  .nav-rail {
    padding: 16px;
  }

  .nav-rail nav,
  .form-grid,
    .tool-switcher,
    .pill-row,
    .result-grid,
    .page-grid,
    .ad-grid {
    grid-template-columns: 1fr;
  }

  .section-heading,
  .site-footer {
    display: grid;
  }

  h1 {
    font-size: 2.25rem;
  }

  .product-shot {
    display: none;
  }
}