:root {
  --font-main: 'Roboto', 'Segoe UI', Arial, sans-serif;

  --bg-page: #f4f9fc;
  --bg-surface: #ffffff;
  --bg-soft: #eef7fc;

  --text-primary: #1a2f45;
  --text-secondary: #5f7488;

  --accent-blue: #1fb3e6;
  --accent-blue-strong: #0a97ca;
  --accent-yellow: #f4c300;

  --border-soft: #cfe5f2;
  --border-strong: #8fcfe8;

  --shadow-card: 0 10px 24px rgba(20, 78, 111, 0.12);
  --shadow-soft: 0 4px 12px rgba(20, 78, 111, 0.08);

  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 12px;

  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  color: var(--text-primary);
  background:
    radial-gradient(circle at 10% 8%, rgba(31, 179, 230, 0.15), transparent 28%),
    radial-gradient(circle at 92% 14%, rgba(244, 195, 0, 0.14), transparent 24%),
    radial-gradient(circle at 50% 100%, rgba(31, 179, 230, 0.08), transparent 30%),
    var(--bg-page);
  line-height: 1.45;
}

.region-layout {
  width: min(1160px, calc(100% - 32px));
  margin: 40px auto 60px;
}

.region-hero {
  position: relative;
  padding: var(--space-6) var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(239, 249, 255, 0.95));
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.region-hero::before,
.region-hero::after {
  content: '';
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
}

.region-hero::before {
  width: 260px;
  height: 260px;
  right: -100px;
  top: -110px;
  background: rgba(31, 179, 230, 0.13);
}

.region-hero::after {
  width: 180px;
  height: 180px;
  left: -75px;
  bottom: -80px;
  background: rgba(244, 195, 0, 0.17);
}

.region-topline {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.home-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-surface);
  color: var(--accent-blue-strong);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  box-shadow: var(--shadow-soft);
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.home-link:hover {
  background: rgba(31, 179, 230, 0.1);
  border-color: var(--accent-blue);
}

.home-link:active {
  background: rgba(31, 179, 230, 0.2);
}

.home-link:visited {
  color: #2f78a7;
}

.home-link:focus-visible {
  outline: 3px solid rgba(244, 195, 0, 0.88);
  outline-offset: 2px;
}

.region-title {
  margin: 0;
  position: relative;
  z-index: 1;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.1;
  letter-spacing: 0.2px;
  color: var(--text-primary);
}

.region-subtitle {
  margin: var(--space-3) 0 0;
  position: relative;
  z-index: 1;
  max-width: 720px;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-secondary);
}

.region-section {
  margin-top: var(--space-6);
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.section-title {
  margin: 0;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.15;
  color: var(--text-primary);
}

.section-rule {
  flex: 1;
  height: 2px;
  border-radius: 99px;
  background: linear-gradient(90deg, rgba(31, 179, 230, 0.95), rgba(31, 179, 230, 0.18));
}

.region-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
}

.region-links li {
  min-width: 0;
}

.region-links a {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 76px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  background: var(--bg-surface);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.3;
  overflow-wrap: anywhere;
  hyphens: auto;
  box-shadow: var(--shadow-soft);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease,
    background-color 0.2s ease,
    color 0.2s ease;
}

.region-links a:hover {
  transform: translateY(-2px);
  border-color: var(--accent-blue);
  background: #f8fdff;
  box-shadow: 0 10px 22px rgba(18, 98, 141, 0.15);
  color: #112a40;
}

.region-links a:focus-visible {
  outline: 3px solid rgba(244, 195, 0, 0.9);
  outline-offset: 2px;
  border-color: var(--accent-blue-strong);
}

.region-links a:active {
  transform: translateY(0);
  background: #eaf6fc;
  box-shadow: 0 4px 10px rgba(18, 98, 141, 0.18);
}

.region-links a:visited {
  color: #2f6f93;
}

.region-links a:visited:hover,
.region-links a:visited:focus-visible {
  color: #235775;
}

.region-note {
  margin-top: var(--space-4);
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-strong);
  background: rgba(244, 195, 0, 0.12);
  color: #3f4d5b;
  font-size: 14px;
}

@media (max-width: 1120px) {
  .region-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .region-layout {
    width: min(980px, calc(100% - 24px));
    margin-top: 24px;
  }

  .region-hero {
    padding: var(--space-5) var(--space-4);
  }

  .region-topline {
    margin-bottom: var(--space-3);
  }

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

@media (max-width: 620px) {
  .region-layout {
    width: calc(100% - 18px);
    margin-bottom: 36px;
  }

  .region-hero {
    padding: var(--space-4) var(--space-3);
    border-radius: 22px;
  }

  .region-topline {
    flex-wrap: wrap;
    margin-bottom: 10px;
  }

  .home-link {
    min-height: 40px;
    font-size: 14px;
  }

  .region-links {
    grid-template-columns: 1fr;
  }

  .region-links a {
    min-height: 66px;
    font-size: 16px;
  }

  .section-rule {
    display: none;
  }
}