:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #667085;
  --line: #e4e7ec;
  --surface: #ffffff;
  --page: #f4f6f9;
  --brand: #1f4f8a;
  --brand-dark: #142b4f;
  --soft: #eaf0f7;
  --success: #137547;
  --radius: 16px;
  --navy: #142b4f;
  --gold: #e5b84b;
  --shadow: 0 12px 32px rgba(16, 24, 40, .07);
}


.site-header {
  background: var(--navy);
  color: #fff;
  border-bottom: 3px solid var(--gold);
}
.nav-inner {
  width: min(1100px, calc(100% - 32px));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: #fff;
  text-decoration: none;
  min-width: 0;
}
.brand-mark { width: 42px; height: 42px; flex: 0 0 auto; }
.brand-name {
  display: block;
  font-size: 1.32rem;
  line-height: 1.1;
  font-weight: 850;
  letter-spacing: -.045em;
}
.brand-tagline {
  display: block;
  color: #d5deeb;
  font-size: .68rem;
  letter-spacing: .015em;
  margin-top: 4px;
}
.site-nav { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.site-nav a {
  color: #edf2f8;
  text-decoration: none;
  font-size: .88rem;
  font-weight: 650;
}
.site-nav a:hover { color: var(--gold); }
.breadcrumb {
  font-size: .82rem;
  color: var(--muted);
  margin: 0 0 20px;
}
.breadcrumb a { color: var(--brand); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.intro { padding-top: 8px; }
.footer a { color: var(--brand); text-decoration: none; }
.footer a:hover { text-decoration: underline; }

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

.page {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0 64px;
}

.intro { max-width: 760px; margin-bottom: 26px; }
.eyebrow {
  color: var(--brand);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
  margin: 0 0 8px;
}
h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.12; margin: 0 0 14px; letter-spacing: -.04em; }
h2 { font-size: 1.15rem; margin: 0 0 16px; }
h3 { font-size: 1rem; margin: 0 0 10px; }
p { margin: 0 0 12px; }
.lead { color: var(--muted); font-size: 1.05rem; }

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, .85fr);
  gap: 22px;
  align-items: start;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

.section + .section { border-top: 1px solid var(--line); margin-top: 23px; padding-top: 23px; }
.section-help { color: var(--muted); font-size: .9rem; margin: -9px 0 15px; }

.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.field label, .field legend {
  display: block;
  font-size: .9rem;
  font-weight: 700;
  margin-bottom: 7px;
}
select {
  width: 100%;
  min-height: 48px;
  border: 1px solid #cfd5df;
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--ink);
  background: #fff;
  font: inherit;
}
select:focus, input:focus-visible, button:focus-visible, a:focus-visible {
  outline: 3px solid rgba(36, 87, 214, .22);
  outline-offset: 2px;
  border-color: var(--brand);
}

fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
.option-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.option {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  cursor: pointer;
  min-height: 66px;
  transition: border-color .15s ease, background .15s ease;
}
.option:hover { border-color: #9bb5f5; background: #fbfcff; }
.option input { margin: 4px 0 0; accent-color: var(--brand); flex: 0 0 auto; }
.option strong { display: block; font-size: .9rem; line-height: 1.35; }
.option small { display: block; color: var(--muted); font-size: .78rem; margin-top: 3px; }

.result-panel { position: sticky; top: 18px; }
.result-label { color: var(--muted); font-size: .86rem; font-weight: 700; }
.estimate {
  font-size: clamp(1.85rem, 4vw, 2.35rem);
  line-height: 1.2;
  letter-spacing: -.04em;
  font-weight: 800;
  margin: 7px 0 6px;
  overflow-wrap: anywhere;
}
.estimate-note { color: var(--muted); font-size: .83rem; margin-bottom: 20px; }
.result-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 20px; }
button {
  border: 0;
  border-radius: 10px;
  padding: 11px 16px;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}
.primary { background: var(--brand); color: white; }
.primary:hover { background: var(--brand-dark); }
.secondary { background: var(--soft); color: var(--brand-dark); }
.secondary:hover { background: #e0eaff; }

.breakdown { border-top: 1px solid var(--line); padding-top: 15px; }
.breakdown-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 7px 0;
  font-size: .88rem;
}
.breakdown-row span:first-child { color: var(--muted); }
.breakdown-row strong { text-align: right; white-space: nowrap; }
.breakdown-row.total { border-top: 1px solid var(--line); margin-top: 7px; padding-top: 13px; font-size: .98rem; }
.maintenance {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  margin-top: 17px;
}
.maintenance strong { display: block; margin-bottom: 3px; }
.maintenance span { color: var(--muted); font-size: .85rem; }
.disclaimer { color: var(--muted); font-size: .78rem; margin-top: 16px; }
.content {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 22px;
}
.content ul { padding-left: 20px; color: var(--muted); }
.content li { margin: 6px 0; }
.faq-item + .faq-item { border-top: 1px solid var(--line); margin-top: 15px; padding-top: 15px; }
.faq-item p { color: var(--muted); margin-bottom: 0; }
.footer { color: var(--muted); font-size: .82rem; text-align: center; margin-top: 26px; }
.error { color: #b42318; font-size: .9rem; min-height: 1.3em; margin-top: 10px; }

@media (max-width: 820px) {
  .layout { grid-template-columns: 1fr; }
  .result-panel { position: static; }
}
@media (max-width: 540px) {
  .nav-inner { width: min(100% - 20px, 700px); min-height: 68px; }
  .brand-mark { width: 36px; height: 36px; }
  .brand-name { font-size: 1.16rem; }
  .brand-tagline { font-size: .62rem; }
  .site-nav { gap: 12px; }
  .site-nav a { font-size: .78rem; }
  .page { width: min(100% - 20px, 700px); padding-top: 28px; }
  .panel, .content { padding: 18px; }
  .field-grid, .option-list { grid-template-columns: 1fr; }
  .option { min-height: 58px; }
  .estimate { font-size: 2rem; }
}