* {
  box-sizing: border-box;
}

:root {
  --bg: #f6f8f3;
  --paper: #ffffff;
  --text: #17251d;
  --muted: #667268;
  --line: #e1e9df;
  --green: #20784a;
  --green-deep: #145c38;
  --blue: #416d95;
  --shadow: 0 18px 48px rgba(23, 37, 29, .08);
  --wrap: 980px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 8% -8%, rgba(32, 120, 74, .13), transparent 30%),
    radial-gradient(circle at 92% 2%, rgba(182, 138, 88, .13), transparent 26%),
    linear-gradient(180deg, #fcfdf9 0%, var(--bg) 46%, #f0f4ed 100%);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.7;
}

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

.container {
  width: min(var(--wrap), calc(100% - 44px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(225, 233, 223, .82);
  background: rgba(246, 248, 243, .9);
  backdrop-filter: blur(16px);
}

.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 800;
}

.logo-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--blue), var(--green));
  color: #fff;
  box-shadow: 0 14px 30px rgba(32, 120, 74, .2);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.nav a,
.back-link {
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, .82);
  color: #35453b;
  font-size: 14px;
  font-weight: 700;
}

.article-shell {
  padding: 34px 0 54px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumbs a {
  color: var(--green-deep);
  font-weight: 800;
}

.article-card {
  overflow: hidden;
  border: 1px solid rgba(225, 233, 223, .96);
  border-radius: 34px;
  background: rgba(255, 255, 255, .92);
  box-shadow: var(--shadow);
}

.article-hero {
  display: grid;
  gap: 18px;
  padding: 36px 36px 20px;
}

.badge {
  display: inline-flex;
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: #eaf5ef;
  color: var(--green-deep);
  font-size: 13px;
  font-weight: 800;
}

h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.04;
}

.lead {
  max-width: 780px;
  margin: 0;
  color: #53645a;
  font-size: 20px;
}

.article-image {
  width: 100%;
  height: clamp(240px, 42vw, 460px);
  object-fit: cover;
  display: block;
}

.article-body {
  display: grid;
  gap: 18px;
  padding: 30px 36px 38px;
  font-size: 18px;
}

.article-body p {
  margin: 0;
}

.article-note {
  padding: 18px 20px;
  border-left: 4px solid var(--green);
  border-radius: 18px;
  background: #f2f7f0;
  color: #35453b;
}

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

.site-footer {
  padding: 0 0 44px;
}

.footer-box {
  padding: 26px;
  border-radius: 28px;
  background: var(--text);
  color: #fff;
}

.footer-box p {
  margin: 0;
  color: rgba(255, 255, 255, .72);
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 32px, var(--wrap));
  }

  .site-header__row {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
  }

  .nav a {
    flex: 1;
    text-align: center;
  }

  .article-hero,
  .article-body {
    padding-right: 24px;
    padding-left: 24px;
  }

  .article-body {
    font-size: 16px;
  }
}