:root,
[data-theme="dark"] {
  --primary: #e86900;
  --primary-dark: #c75700;
  --text: #f0f0f0;
  --heading: #e86900;
  --bg: #000;
  --surface: #000;
  --border: #333;
  --th-bg: #e86900;
  --th-text: #fff;
  --row-even: #141414;
  --row-hover: #2a1a0a;
}

[data-theme="orange"] {
  --primary: #000;
  --primary-dark: #111;
  --text: #000;
  --heading: #000;
  --bg: #e86900;
  --surface: #e86900;
  --border: #000;
  --th-bg: #000;
  --th-text: #e86900;
  --row-even: #d45f00;
  --row-hover: #c75700;
}

* {
  box-sizing: border-box;
}

html,
body {
  background: var(--bg);
}

body {
  font-family: "Segoe UI", Arial, sans-serif;
  margin: 0;
  padding: 30px;
  color: var(--text);
}

.container {
  max-width: 1600px;
  margin: auto;
  background: var(--surface);
  padding: 30px;
  border-radius: 16px;
}

.header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0 35px;
  border-bottom: 4px solid var(--heading);
}

.section-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 20px 0;
  border-bottom: 4px solid var(--heading);
  margin-bottom: 10px;
}

.section-nav-btn {
  display: inline-block;
  text-decoration: none;
  border: 2px solid var(--heading);
  background: var(--bg);
  color: var(--heading);
  font-weight: 700;
  padding: 10px 16px;
  border-radius: 999px;
}

.section-nav-btn:hover,
.section-nav-btn:focus-visible {
  background: var(--heading);
  color: var(--bg);
  outline: none;
}

.logo-wrap {
  width: 300px;
  max-width: 100%;
}

.logo {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 14px;
}

.logo-dark {
  display: none;
}

[data-theme="orange"] .logo-orange {
  display: none;
}

[data-theme="orange"] .logo-dark {
  display: block;
}

.theme-toggle {
  flex-shrink: 0;
  appearance: none;
  border: 2px solid var(--heading);
  background: var(--bg);
  color: var(--heading);
  font: inherit;
  font-weight: 700;
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  background: var(--heading);
  color: var(--bg);
  outline: none;
}

.back-top {
  display: flex;
  justify-content: flex-end;
  width: min(100%, calc(100vw - 60px));
  margin: 4px 0 8px;
}

.back-top-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 2px solid var(--heading);
  border-radius: 50%;
  color: var(--heading);
  text-decoration: none;
}

.back-top-btn svg {
  width: 14px;
  height: 14px;
}

.back-top-btn:hover,
.back-top-btn:focus-visible {
  background: var(--heading);
  color: var(--bg);
  outline: none;
}

h2 {
  color: var(--heading);
  border-left: 5px solid var(--heading);
  padding-left: 12px;
  margin-top: 40px;
  scroll-margin-top: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}

th,
td {
  border: 1px solid var(--border);
  padding: 8px;
  text-align: left;
}

th {
  background: var(--th-bg);
  color: var(--th-text);
}

td.oblast {
  vertical-align: middle;
  font-weight: 700;
  white-space: nowrap;
  width: 1%;
}

tbody tr:nth-child(odd) {
  background: var(--row-even);
}

tbody tr:hover {
  background: var(--row-hover);
}

.footer {
  margin-top: 40px;
  padding-top: 25px;
  border-top: 4px solid var(--heading);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.footer-title {
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 10px;
}