:root {
  --primary: #2f4f6f;
  --secondary: #4a7c7c;
  --accent: #c9a96e;
  --bg: #f7f9fb;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #667085;
  --border: #d9e1e8;
  --wrap: 1680px;
  --radius: 18px;
  --shadow: 0 10px 24px rgba(31, 41, 51, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 18px;
}

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

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover { text-decoration: underline; }

.wrap {
  width: min(var(--wrap), calc(100% - 48px));
  margin: 0 auto;
}

/* HEADER */

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 5;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 12px 0;
}

.logo {
  flex: 0 0 auto;
  line-height: 0;
}

.logo img {
  display: block;
  height: 86px;
  width: auto;
  max-width: min(560px, 48vw);
}

/* NAV */

.main-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  align-items: center;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
  font-weight: 700;
  flex: 1 1 auto;
}

.main-nav a {
  color: var(--primary);
  padding: 7px 9px;
  border-radius: 999px;
}

.main-nav a:hover {
  background: #edf4f6;
  text-decoration: none;
}

/* HERO */

.hero {
  background:
    linear-gradient(135deg, rgba(47,79,111,0.96), rgba(74,124,124,0.92)),
    radial-gradient(circle at top right, rgba(201,169,110,0.22), transparent 34%);
  color: #fff;
  padding: 26px 0 24px;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.1;
  letter-spacing: -0.015em;
}

.lead {
  max-width: 1100px;
  font-size: clamp(18px, 1.25vw, 21px);
  line-height: 1.45;
  margin: 0;
  color: rgba(255,255,255,0.94);
}

/* CONTENT */

.intro {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(24px, 3vw, 42px);
  margin: 24px 0;
}

.intro p {
  margin: 0 0 16px;
}

.intro p:last-child {
  margin-bottom: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 26px 0 50px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 10px;
  color: var(--primary);
  font-size: 23px;
  line-height: 1.2;
}

.card p {
  margin: 0;
  color: var(--muted);
}

/* ADS */

.ad-slot {
  margin: 10px 0 16px;
  min-height: 0;
}

.ad-slot ins.adsbygoogle {
  min-height: 0 !important;
}

.ad-label {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

/* FOOTER */

.site-footer {
  background: #10243a;
  color: #eef4f7;
  padding: 40px 0 22px;
  font-family: Arial, Helvetica, sans-serif;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 28px;
}

.site-footer h3,
.site-footer h4 {
  margin: 0 0 10px;
  color: #fff;
}

.site-footer p {
  margin: 0;
  color: #c9d6df;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer li {
  margin: 6px 0;
}

.site-footer a {
  color: #dcebf0;
}

.copyright {
  border-top: 1px solid rgba(255,255,255,0.15);
  margin-top: 24px;
  padding-top: 14px;
  font-size: 14px;
  color: #c9d6df;
}

/* RESPONSIVE */

@media (max-width: 980px) {
  .header-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
  }

  .logo img {
    height: 76px;
    max-width: min(520px, 94vw);
  }

  .main-nav {
    justify-content: center;
    width: 100%;
    flex: none;
    gap: 8px;
  }

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

@media (max-width: 640px) {
  body {
    font-size: 17px;
  }

  .wrap {
    width: min(100% - 28px, var(--wrap));
  }

  .header-inner {
    padding: 8px 0 10px;
  }

  .logo img {
    height: 66px;
    max-width: 94vw;
  }

  .main-nav {
    font-size: 14px;
    gap: 6px;
  }

  .main-nav a {
    padding: 5px 7px;
  }

  .hero {
    padding: 22px 0 20px;
  }

  .hero h1 {
    font-size: clamp(27px, 7vw, 35px);
  }

  .lead {
    font-size: 17px;
  }

  .grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .card,
  .intro {
    padding: 20px;
  }
}

/* AUTHOR META */

.article-meta {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  margin: 6px 0 14px;
}

.hero .article-meta,
.hero .article-meta a,
.hero .article-meta a:visited {
  color: #ffffff !important;
}

.hero .article-meta a {
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}