:root {
  color-scheme: light;
  --bg: #f7f6f1;
  --paper: #ffffff;
  --ink: #18201c;
  --muted: #5d675f;
  --line: #d9ddd5;
  --accent: #18746f;
  --accent-strong: #0f5854;
  --sun: #d9973f;
  --blue: #456b97;
  --rose: #a84f5f;
  --shadow: 0 18px 50px rgba(28, 39, 34, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

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

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

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  background: var(--ink);
  color: #fff;
  padding: 0.65rem 0.9rem;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem clamp(1rem, 5vw, 4.5rem);
  background: rgba(247, 246, 241, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand,
.main-nav,
.hero-actions,
.site-footer nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 0.7rem;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 0.8rem;
}

.main-nav {
  gap: 0.35rem;
}

.main-nav a,
.site-footer a {
  border-radius: 7px;
  color: var(--muted);
  font-weight: 650;
}

.main-nav a {
  padding: 0.55rem 0.8rem;
}

.main-nav a:hover,
.main-nav a[aria-current="page"],
.site-footer a:hover {
  color: var(--accent-strong);
  background: rgba(24, 116, 111, 0.08);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  padding: clamp(2rem, 6vw, 6rem) clamp(1rem, 5vw, 4.5rem) clamp(1.5rem, 4vw, 3rem);
}

.hero-copy {
  max-width: 44rem;
}

.eyebrow {
  margin-bottom: 0.7rem;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin-bottom: 1.1rem;
  font-size: clamp(2.35rem, 5vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.page-hero h1,
.article h1 {
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.05;
}

.hero-copy > p:not(.eyebrow),
.page-hero > p,
.article-header > p,
.feature-band p,
.section-heading p {
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-weight: 780;
}

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

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

.button.secondary {
  background: #fff;
  color: var(--ink);
}

.button.secondary:hover {
  border-color: var(--accent);
}

.hero-media {
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  background: #dfe6de;
  box-shadow: var(--shadow);
}

.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero-media figcaption {
  padding: 0.9rem 1rem;
  color: var(--muted);
  font-size: 0.92rem;
  background: var(--paper);
}

.section {
  padding: clamp(2.8rem, 6vw, 5.5rem) clamp(1rem, 5vw, 4.5rem);
}

.section.compact {
  padding-top: 2rem;
}

.section-heading {
  max-width: 48rem;
  margin-bottom: 1.6rem;
}

.section-heading h2,
.feature-band h2,
.text-page h2,
.article-body h2 {
  margin-bottom: 0.7rem;
  font-size: clamp(1.55rem, 3vw, 2.4rem);
  line-height: 1.12;
  letter-spacing: 0;
}

.principle-grid,
.guide-grid,
.city-grid,
.topic-grid,
.starter-grid {
  display: grid;
  gap: 1rem;
}

.principle-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.principle,
.guide-card,
.city-card,
.topic-card,
.starter-card,
.faq-list details {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.principle {
  min-height: 13.5rem;
  padding: 1.1rem;
}

.principle span {
  display: inline-flex;
  margin-bottom: 1.2rem;
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 850;
}

.principle h3,
.guide-card h3,
.city-card h3,
.topic-card h3,
.starter-card h3 {
  margin-bottom: 0.55rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.principle p,
.guide-card p,
.city-card p,
.topic-card p,
.starter-card p,
.faq-list p,
.article-body p,
.text-page p {
  color: var(--muted);
}

.feature-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  margin: clamp(1rem, 4vw, 3rem) clamp(1rem, 5vw, 4.5rem);
  padding: clamp(1rem, 3vw, 2rem);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-band img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  border-radius: 8px;
}

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

.topic-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.guide-card {
  overflow: hidden;
}

.card-image {
  display: block;
  background: #e8ebe5;
}

.card-image img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform 180ms ease;
}

.guide-card:hover .card-image img {
  transform: scale(1.025);
}

.card-body {
  padding: 1rem;
}

.card-body h3 a:hover {
  color: var(--accent-strong);
}

.city-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.city-card {
  padding: 1rem;
}

.topic-card,
.starter-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 15rem;
  padding: 1rem;
}

.topic-card h3 a:hover {
  color: var(--accent-strong);
}

.starter-prompt {
  color: var(--ink) !important;
  font-size: 1.08rem;
  font-weight: 750;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.tag-row span {
  border: 1px solid rgba(24, 116, 111, 0.2);
  border-radius: 999px;
  padding: 0.28rem 0.55rem;
  color: var(--accent-strong);
  background: rgba(24, 116, 111, 0.07);
  font-size: 0.78rem;
  font-weight: 720;
}

.share-button {
  width: 100%;
  min-height: 2.45rem;
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--accent-strong);
  background: #f8faf7;
  font: inherit;
  font-weight: 780;
  cursor: pointer;
}

.share-button:hover {
  border-color: var(--accent);
  background: rgba(24, 116, 111, 0.08);
}

.city-card ul {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.city-card li + li {
  margin-top: 0.45rem;
}

.page-hero {
  max-width: 58rem;
  padding: clamp(3rem, 8vw, 7rem) clamp(1rem, 5vw, 4.5rem) 1rem;
}

.page-hero.narrow {
  max-width: 48rem;
}

.article {
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 5vw, 4.5rem) 0;
}

.article-header {
  max-width: 58rem;
}

.article-header img {
  width: min(100%, 58rem);
  margin-top: 1.6rem;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.article-body,
.text-page {
  width: min(100%, 46rem);
  margin-top: clamp(2rem, 4vw, 3.5rem);
}

.article-body section + section,
.text-page h2 {
  margin-top: 2.2rem;
}

.article-body p,
.text-page p {
  font-size: 1.05rem;
}

.related {
  padding-top: 3rem;
}

.faq-list {
  display: grid;
  gap: 0.75rem;
  width: min(100%, 56rem);
}

.faq-list details {
  padding: 1rem;
}

.faq-list summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 800;
}

.faq-list p {
  margin: 0.75rem 0 0;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem clamp(1rem, 5vw, 4.5rem);
  border-top: 1px solid var(--line);
  background: #eef0eb;
}

.site-footer p {
  max-width: 42rem;
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.site-footer nav {
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.site-footer a {
  padding: 0.45rem 0.65rem;
}

@media (max-width: 980px) {
  .hero,
  .feature-band {
    grid-template-columns: 1fr;
  }

  .principle-grid,
  .city-grid,
  .topic-grid,
  .starter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 680px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .main-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .hero {
    padding-top: 2rem;
  }

  h1 {
    font-size: 2.35rem;
  }

  .principle-grid,
  .guide-grid,
  .city-grid,
  .topic-grid,
  .starter-grid {
    grid-template-columns: 1fr;
  }

  .principle {
    min-height: auto;
  }
}