:root {
  --green: #16a085;
  --green-dark: #12806d;
  --green-soft: #eaf8f4;
  --text: #20302b;
  --muted: #6f7f79;
  --border: #dceae5;
  --bg: #f7fbf9;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}
.container {
  width: min(1080px, calc(100% - 32px));
  margin: auto;
}
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  font-size: 20px;
}
.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--green);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
}
.nav-links {
  display: flex;
  gap: 20px;
  margin-left: 20px;
}
.nav-links a {
  color: #53645e;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}
.nav-links a:hover {
  color: var(--green);
}
.nav-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}
.editor-btn {
  text-decoration: none;
  background: var(--green);
  color: #fff;
  padding: 10px 14px;
  border-radius: 9px;
  font-weight: 700;
  font-size: 13px;
}
.editor-btn:hover {
  background: var(--green-dark);
}
.hero {
  background: linear-gradient(180deg, #eaf8f4, #f7fbf9);
  border-bottom: 1px solid var(--border);
  padding: 64px 0 48px;
}
.hero small {
  color: var(--green);
  font-weight: 800;
  letter-spacing: 1.5px;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.08;
  margin: 10px 0 14px;
  letter-spacing: -1.5px;
}
.hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: 17px;
  margin: 0;
}
.content-wrap {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 28px;
  padding: 38px 0 70px;
}
.side-card,
.article-card,
.contact-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(34, 80, 68, 0.05);
}
.side-card {
  padding: 16px;
  height: max-content;
  position: sticky;
  top: 90px;
}
.side-card a {
  display: block;
  padding: 9px 10px;
  border-radius: 8px;
  text-decoration: none;
  color: #52635d;
  font-size: 13px;
}
.side-card a:hover {
  background: var(--green-soft);
  color: var(--green-dark);
}
.article-card {
  padding: 30px;
}
.article-card h2 {
  font-size: 23px;
  margin: 28px 0 8px;
}
.article-card h2:first-child {
  margin-top: 0;
}
.article-card p,
.article-card li {
  color: #5f706a;
  font-size: 14px;
}
.notice {
  padding: 14px 16px;
  border-left: 4px solid var(--green);
  background: var(--green-soft);
  border-radius: 8px;
  margin: 18px 0;
  color: #416057;
  font-size: 14px;
}
.updated {
  font-size: 12px;
  color: #87958f;
  margin-top: 26px;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.contact-card {
  padding: 24px;
}
.contact-card h3 {
  margin-top: 0;
}
.contact-card input,
.contact-card textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  font: inherit;
  margin-top: 7px;
  background: #fff;
}
.contact-card textarea {
  min-height: 150px;
  resize: vertical;
}
.contact-card button {
  margin-top: 12px;
  border: 0;
  background: var(--green);
  color: white;
  padding: 11px 15px;
  border-radius: 9px;
  font-weight: 700;
  cursor: pointer;
}
.contact-card button:hover {
  background: var(--green-dark);
}
footer {
  background: #11231e;
  color: #c9d5d1;
  padding: 36px 0 18px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 28px;
}
footer a {
  color: #9eb0aa;
  text-decoration: none;
  display: block;
  margin: 7px 0;
  font-size: 12px;
}
footer p {
  color: #8fa19b;
  font-size: 12px;
}
.copyright {
  border-top: 1px solid #29403a;
  margin-top: 24px;
  padding-top: 14px;
  color: #778b84;
  font-size: 11px;
}
@media (max-width: 800px) {
  .nav-links {
    display: none;
  }
  .content-wrap {
    grid-template-columns: 1fr;
  }
  .side-card {
    position: static;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .editor-btn {
    display: none;
  }
}

.lang-select {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 9px;
  padding: 9px 10px;
  color: var(--text);
  font: inherit;
  max-width: 190px;
}
.lang-select:focus {
  outline: 2px solid rgba(22, 160, 133, 0.18);
  border-color: var(--green);
}