:root {
  --bg: #f7f4ef;
  --paper: #fffdf8;
  --ink: #2c2924;
  --muted: #665f56;
  --line: #dfd6c9;
  --soft: #eee7dc;
  --accent: #7b5e43;
  --accent-dark: #4e3927;
  --green: #5f7357;
  --blue: #526b7c;
  --warn: #8a6131;
  --shadow: 0 18px 48px rgba(69, 54, 37, 0.12);
  --radius: 18px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.68;
  font-size: 17px;
}

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

a {
  color: var(--accent-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover,
a:focus {
  color: #2e2015;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--ink);
  color: white;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  z-index: 100;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  background: rgba(255, 253, 248, 0.94);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
}

.nav-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.8rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: inline-grid;
  place-items: center;
  background: linear-gradient(135deg, #d7c3aa, #8c6a4b);
  color: #fffdf8;
  font-family: Arial, sans-serif;
  font-size: 0.9rem;
}

.nav-toggle {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.55rem 0.8rem;
  font: inherit;
  display: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
  font-size: 0.96rem;
}

.nav-links a[aria-current="page"],
.nav-links a:hover,
.nav-links a:focus {
  background: var(--soft);
  color: var(--ink);
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.4rem 1rem 3rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 2rem;
  align-items: center;
  padding: 2.2rem 0 1.7rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 0.65rem;
  color: var(--accent-dark);
  font: 700 0.82rem/1.3 Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1,
h2,
h3 {
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.18;
  color: var(--ink);
  margin: 0 0 0.7rem;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(2.15rem, 7vw, 4.65rem);
}

h2 {
  font-size: clamp(1.55rem, 3vw, 2.25rem);
  margin-top: 2.3rem;
}

h3 {
  font-size: 1.25rem;
  margin-top: 1.55rem;
}

p {
  margin: 0 0 1rem;
}

.lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--muted);
  max-width: 62ch;
}

.hero-card,
.article-card,
.method-card,
.tool-card,
.checklist,
.callout,
.faq-block,
.table-wrap,
.info-grid > section,
.cost-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 0.75rem;
}

.hero-card img {
  border-radius: 14px;
  border: 1px solid var(--line);
}

.article-card,
.method-card {
  padding: clamp(1.1rem, 3vw, 2rem);
}

.toc {
  margin: 1rem 0 1.5rem;
  padding: 1rem;
  border-radius: var(--radius);
  background: #fbf5eb;
  border: 1px solid var(--line);
}

.toc strong {
  display: block;
  margin-bottom: 0.35rem;
}

.toc a {
  display: inline-block;
  margin: 0.2rem 0.7rem 0.2rem 0;
}

.notice {
  border-left: 5px solid var(--green);
  background: #f3f5ee;
  padding: 1rem;
  border-radius: 12px;
  margin: 1.2rem 0;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.1rem 0 1.4rem;
}

.info-grid > section {
  padding: 1rem;
  box-shadow: none;
}

.info-grid h3,
.cost-card h3 {
  margin-top: 0;
}

.cost-cards {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin: 1rem 0 1.5rem;
}

.cost-card {
  padding: 0.95rem;
  box-shadow: none;
}

.cost-card span {
  display: block;
  font: 700 0.77rem/1.4 Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}

.cost-card strong {
  display: block;
  font-size: 1.05rem;
  margin: 0.2rem 0 0.35rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-family: Arial, sans-serif;
  font-size: 0.96rem;
  line-height: 1.45;
}

.table-wrap {
  overflow-x: auto;
  margin: 1rem 0 1.4rem;
  box-shadow: none;
}

caption {
  text-align: left;
  padding: 0.9rem 1rem 0.25rem;
  color: var(--muted);
  font-weight: 700;
}

th,
td {
  text-align: left;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: #eee4d6;
  color: var(--ink);
}

tr:last-child td {
  border-bottom: none;
}

ul,
ol {
  padding-left: 1.25rem;
}

li {
  margin: 0.3rem 0;
}

.checklist,
.callout,
.faq-block,
.tool-card {
  padding: 1rem;
  margin: 1.2rem 0;
  box-shadow: none;
}

.checklist ul {
  list-style: none;
  padding-left: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.45rem 1rem;
}

.checklist li::before {
  content: "□";
  margin-right: 0.45rem;
  color: var(--accent-dark);
  font-weight: 700;
}

.tool-card {
  background: #faf1e4;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin-top: 0.9rem;
}

label {
  display: block;
  font: 700 0.85rem/1.3 Arial, sans-serif;
  color: var(--ink);
}

input {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.65rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  font: 1rem Arial, sans-serif;
}

.result-box {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  font-family: Arial, sans-serif;
}

.result-box strong {
  font-size: 1.45rem;
  color: var(--accent-dark);
}

details {
  border-top: 1px solid var(--line);
  padding: 0.85rem 0;
}

details:first-of-type {
  border-top: none;
}

summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--ink);
}

summary:focus {
  outline: 3px solid rgba(123, 94, 67, 0.25);
  outline-offset: 4px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #eee7dc;
  color: var(--muted);
}

.footer-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-wrap a {
  color: var(--ink);
}

@media (max-width: 900px) {
  .hero,
  .info-grid,
  .tool-grid {
    grid-template-columns: 1fr;
  }

  .cost-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  body {
    font-size: 16px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    width: 100%;
    padding-top: 0.8rem;
  }

  .nav-wrap {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .nav-links.is-open {
    display: grid;
    grid-template-columns: 1fr;
  }

  .nav-links a {
    padding: 0.75rem;
    background: var(--soft);
  }

  main {
    padding-top: 0.7rem;
  }

  .checklist ul {
    grid-template-columns: 1fr;
  }

  .cost-cards {
    grid-template-columns: 1fr;
  }

  th,
  td {
    padding: 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}