:root {
  --page-bg: #f4f7f6;
  --surface: #ffffff;
  --surface-soft: #eef5f2;
  --ink: #192526;
  --muted: #617173;
  --line: #d4dfdc;
  --primary: #176b5f;
  --primary-dark: #0e4e46;
  --blue: #2d6683;
  --blue-soft: #e7f0f5;
  --amber: #9b5a1b;
  --amber-soft: #fff1df;
  --red: #9a4037;
  --red-soft: #faeae7;
  --shadow: 0 18px 50px rgba(20, 46, 42, 0.09);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--page-bg);
  scroll-behavior: smooth;
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: var(--primary-dark);
}

button,
input,
select {
  font: inherit;
}

.site-header {
  border-bottom: 1px solid rgba(212, 223, 220, 0.9);
  background: rgba(255, 255, 255, 0.92);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1120px, calc(100% - 40px));
  min-height: 68px;
  margin: 0 auto;
}

.brand {
  color: var(--primary-dark);
  font-size: 1.15rem;
  font-weight: 850;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.92rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  color: var(--primary-dark);
}

.page-shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 54px 0 72px;
}

.breadcrumbs {
  margin-bottom: 26px;
  color: var(--muted);
  font-size: 0.86rem;
}

.breadcrumbs a {
  color: inherit;
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: 48px;
  align-items: center;
  margin-bottom: 38px;
}

.eyebrow,
.result-eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.055em;
}

.hero-lead {
  max-width: 730px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.hero-points {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow);
  list-style: none;
}

.hero-points li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 9px;
  align-items: start;
}

.hero-points li::before {
  content: "✓";
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--surface-soft);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 900;
}

.calculator-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.calculator-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.calculator-heading h2 {
  margin: 0;
  font-size: 1.45rem;
  line-height: 1.2;
}

.local-badge {
  flex: 0 0 auto;
  padding: 6px 9px;
  border: 1px solid rgba(23, 107, 95, 0.28);
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--primary-dark);
  font-size: 0.77rem;
  font-weight: 800;
}

.calculator-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.calculator-grid.single-grid {
  grid-template-columns: minmax(0, 1fr);
}

.field {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.field > span,
.advanced-label {
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 750;
}

.field input,
.field select {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--ink);
}

.field input:focus,
.field select:focus {
  border-color: var(--primary);
  outline: 3px solid rgba(23, 107, 95, 0.12);
}

.advanced-settings {
  margin-top: 20px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.advanced-settings summary {
  padding: 16px 0 0;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 700;
}

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

.radio-stack {
  display: grid;
  gap: 7px;
  padding-top: 4px;
}

.radio-stack label {
  display: flex;
  gap: 7px;
  align-items: center;
  font-size: 0.88rem;
}

.calculator-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.primary-button,
.secondary-button,
.inline-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 16px;
  border-radius: 9px;
  font-weight: 800;
  text-decoration: none;
}

.primary-button {
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #fff;
  cursor: pointer;
}

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

.secondary-button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.calculator-status {
  min-height: 24px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.87rem;
}

.calculator-status[data-status="error"] {
  color: var(--red);
}

.decision-result {
  margin-top: 22px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--surface-soft);
}

.decision-result-empty {
  padding: 22px;
  color: var(--muted);
  text-align: center;
}

.decision-lead h2 {
  margin: 0;
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.decision-lead > p:last-child {
  max-width: 760px;
  margin: 10px 0 0;
  color: var(--muted);
}

.verdict-upgrade {
  border-color: rgba(23, 107, 95, 0.35);
  background: #edf7f3;
}

.verdict-comparable {
  border-color: rgba(45, 102, 131, 0.3);
  background: var(--blue-soft);
}

.verdict-mixed {
  border-color: rgba(155, 90, 27, 0.3);
  background: var(--amber-soft);
}

.verdict-downgrade {
  border-color: rgba(154, 64, 55, 0.28);
  background: var(--red-soft);
}

.decision-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0 0;
}

.decision-metrics.three-columns {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.decision-metrics > div {
  min-width: 0;
  padding: 16px;
  border: 1px solid rgba(212, 223, 220, 0.9);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.82);
}

.decision-metrics dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.decision-metrics dd {
  margin: 6px 0 0;
  overflow-wrap: anywhere;
  font-size: 1.22rem;
  font-weight: 850;
}

.decision-metrics small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.comparison-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.comparison-summary p {
  margin: 0;
  padding: 15px;
  border-left: 3px solid var(--primary);
  background: rgba(255, 255, 255, 0.58);
}

.result-footnote {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.inline-cta {
  min-height: auto;
  margin-top: 15px;
  padding: 0;
  color: var(--primary-dark);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 26px;
  margin-top: 38px;
}

.content-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--surface);
}

.content-card + .content-card {
  margin-top: 20px;
}

.content-card h2,
.content-card h3 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.content-card p,
.content-card li {
  color: var(--muted);
}

.content-card ul,
.content-card ol {
  padding-left: 21px;
}

.related-links {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.related-links a {
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--ink);
  text-decoration: none;
}

.related-links a:hover {
  border-color: var(--primary);
}

.faq-list details {
  border-top: 1px solid var(--line);
  padding: 14px 0;
}

.faq-list details:first-child {
  border-top: 0;
}

.faq-list summary {
  color: var(--ink);
  cursor: pointer;
  font-weight: 760;
}

.faq-list p {
  margin-bottom: 0;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #eaf0ee;
}

.site-footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 26px 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.site-footer p {
  margin: 0;
}

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

  .hero {
    gap: 28px;
  }

  .decision-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .site-header-inner,
  .site-footer-inner,
  .page-shell {
    width: min(100% - 24px, 1120px);
  }

  .site-header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
    padding: 13px 0;
  }

  .site-nav {
    flex-wrap: wrap;
    gap: 8px 14px;
  }

  .page-shell {
    padding-top: 34px;
  }

  .hero h1 {
    font-size: 2.35rem;
  }

  .calculator-card,
  .decision-result,
  .content-card {
    padding: 20px;
    border-radius: 13px;
  }

  .calculator-heading,
  .site-footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .calculator-grid,
  .advanced-grid,
  .decision-metrics,
  .decision-metrics.three-columns,
  .comparison-summary {
    grid-template-columns: 1fr;
  }

  .calculator-actions > * {
    width: 100%;
  }
}