:root {
  color-scheme: light;
  --bg: #f7f8f5;
  --surface: #ffffff;
  --ink: #17211b;
  --muted: #5d6a62;
  --line: #dfe5dc;
  --accent: #116149;
  --accent-strong: #0b4837;
  --gold: #b58222;
  --blue: #1f5b7a;
  --shadow: 0 14px 35px rgba(23, 33, 27, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 240px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
}

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

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 0.94rem;
}

.top-nav a:hover,
.left-nav a:hover,
.side-link:hover span {
  color: var(--accent);
}

.shell {
  display: grid;
  grid-template-columns: minmax(160px, 220px) minmax(0, 1fr) minmax(210px, 280px);
  gap: clamp(20px, 3vw, 42px);
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 34px clamp(18px, 4vw, 56px) 54px;
}

.left-nav,
.right-nav {
  position: sticky;
  top: 104px;
  align-self: start;
}

.left-nav,
.right-nav section,
.notice {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  padding: 16px;
}

.left-nav h2,
.right-nav h2 {
  margin: 0 0 12px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.left-nav a {
  display: block;
  padding: 9px 0;
  border-top: 1px solid var(--line);
  font-weight: 650;
}

.right-nav {
  display: grid;
  gap: 16px;
}

.side-link {
  display: block;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.side-link span,
.side-link small {
  display: block;
}

.side-link small,
.article-card small,
.opportunity small,
.meta {
  color: var(--muted);
  font-size: 0.86rem;
}

.content {
  min-width: 0;
}

.hero {
  min-height: 430px;
  display: grid;
  align-content: center;
  gap: 18px;
  padding: clamp(34px, 7vw, 82px);
  background:
    linear-gradient(110deg, rgba(12, 76, 58, 0.94), rgba(17, 97, 73, 0.82)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1200' height='700' viewBox='0 0 1200 700'%3E%3Crect width='1200' height='700' fill='%23e6efe8'/%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='.38' stroke-width='2'%3E%3Cpath d='M120 140h960M120 260h960M120 380h960M120 500h960'/%3E%3Cpath d='M240 80v520M460 80v520M680 80v520M900 80v520'/%3E%3C/g%3E%3Cg fill='%23b58222' fill-opacity='.45'%3E%3Ccircle cx='260' cy='180' r='42'/%3E%3Ccircle cx='780' cy='430' r='66'/%3E%3Ccircle cx='1010' cy='250' r='34'/%3E%3C/g%3E%3C/svg%3E");
  background-size: cover;
  color: #fff;
  box-shadow: var(--shadow);
}

.hero h1,
.page-heading h1,
.article h1 {
  margin: 0;
  max-width: 850px;
  font-size: clamp(2.25rem, 4.35vw, 4.25rem);
  line-height: 1.02;
}

.hero p {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.12rem;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
}

.hero .eyebrow {
  color: #f3cf84;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid currentColor;
  font-weight: 750;
}

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

.grid-section,
.article-list,
.article,
.page-heading,
.tool-panel,
.table-wrap {
  margin-top: 34px;
}

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

.section-heading h2,
.source-box h2,
.related h2 {
  margin: 0;
  font-size: 1.6rem;
}

.section-heading p,
.page-heading p,
.dek {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
}

.opportunity-grid,
.monetization-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.opportunity,
.monetization-grid div,
.article-card,
.tool-panel,
.source-box {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.opportunity,
.monetization-grid div {
  padding: 18px;
}

.opportunity span {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.opportunity h3,
.monetization-grid h3,
.article-card h3 {
  margin: 8px 0;
}

.opportunity p,
.monetization-grid p,
.article-card p {
  color: var(--muted);
}

.article-list {
  display: grid;
  gap: 14px;
}

.article-card a {
  display: block;
  padding: 18px;
}

.article-card span {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.page-heading {
  padding: 34px 0 18px;
  border-bottom: 1px solid var(--line);
}

.article {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: clamp(22px, 5vw, 58px);
  box-shadow: var(--shadow);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.dek {
  margin-top: 16px;
  font-size: 1.16rem;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 18px 0 28px;
}

.article-body {
  max-width: 780px;
}

.article-body h2 {
  margin: 32px 0 10px;
  font-size: 1.55rem;
}

.article-body p,
.article-body li {
  color: #28362d;
  font-size: 1.04rem;
}

.article-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.source-box {
  margin-top: 32px;
  padding: 18px;
  border-left: 4px solid var(--gold);
}

.tool-panel {
  display: grid;
  gap: 16px;
  max-width: 720px;
  padding: 22px;
}

.tool-panel label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-weight: 700;
}

.tool-panel input {
  min-height: 44px;
  border: 1px solid var(--line);
  padding: 8px 10px;
  font: inherit;
}

.tool-panel output {
  min-height: 58px;
  display: grid;
  place-items: center start;
  padding: 14px;
  background: #edf5f1;
  color: var(--accent-strong);
  font-size: 1.3rem;
  font-weight: 850;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  background: var(--surface);
  box-shadow: var(--shadow);
}

th,
td {
  padding: 14px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #edf2ee;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(18px, 4vw, 56px);
  border-top: 1px solid var(--line);
  background: #17211b;
  color: rgba(255, 255, 255, 0.82);
}

.site-footer p {
  margin: 0;
}

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

@media (max-width: 1060px) {
  .shell {
    grid-template-columns: minmax(0, 1fr);
  }

  .left-nav,
  .right-nav {
    position: static;
  }

  .left-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
  }

  .left-nav h2 {
    width: 100%;
  }

  .left-nav a {
    border-top: 0;
  }

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

@media (max-width: 760px) {
  .site-header,
  .site-footer,
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand {
    min-width: 0;
  }

  .top-nav {
    justify-content: flex-start;
  }

  .hero {
    min-height: 390px;
    padding: 28px;
  }

  .opportunity-grid,
  .monetization-grid,
  .right-nav {
    grid-template-columns: 1fr;
  }

  .article {
    padding: 22px;
  }
}