:root {
  --primary: #007d41;
  --primary-muted: #e3f5ea;
  --bg: #f4f6f5;
  --surface: #ffffff;
  --text: #0f1b17;
  --text-secondary: #5b6b65;
  --border: #dde4e1;
  --danger: #b91c1c;
  --danger-muted: #fdecec;
  --success: #15803d;
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #40e858;
    --primary-muted: #10271a;
    --bg: #060a12;
    --surface: #0e141d;
    --text: #e8eef2;
    --text-secondary: #93a0ae;
    --border: #232d3a;
    --danger: #f87171;
    --danger-muted: #3a1717;
    --success: #4ade80;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
}

.brand img {
  border-radius: 7px;
}

.hero {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 20px;
  margin-bottom: 16px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  font-size: 14px;
}

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

nav a[aria-current='page'],
nav a:hover {
  color: var(--primary);
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}

main.wrap {
  padding-top: 32px;
  padding-bottom: 48px;
}

h1 {
  font-size: 30px;
  line-height: 1.25;
  margin: 0 0 8px;
}

h2 {
  font-size: 20px;
  margin: 36px 0 8px;
}

h3 {
  font-size: 16px;
  margin: 20px 0 4px;
}

p,
ul,
ol {
  margin: 8px 0;
}

li {
  margin: 4px 0;
}

a {
  color: var(--primary);
}

.meta {
  color: var(--text-secondary);
  font-size: 14px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  margin: 20px 0;
}

.callout {
  background: var(--primary-muted);
  border-radius: 12px;
  padding: 14px 16px;
  margin: 16px 0;
}

.callout.danger {
  background: var(--danger-muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  margin: 12px 0;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-secondary);
  font-weight: 600;
}

.table-scroll {
  overflow-x: auto;
}

label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin: 14px 0 6px;
}

input[type='email'],
input[type='password'],
input[type='text'] {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 12px;
}

input:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-weight: 400;
}

.check input {
  margin-top: 5px;
  width: 18px;
  height: 18px;
}

button {
  font: inherit;
  font-weight: 600;
  border: 0;
  border-radius: 12px;
  padding: 12px 18px;
  cursor: pointer;
  margin-top: 18px;
  width: 100%;
}

button.danger {
  background: var(--danger);
  color: #ffffff;
}

button:disabled {
  opacity: 0.6;
  cursor: default;
}

.message {
  margin-top: 14px;
  font-weight: 600;
}

.message.error {
  color: var(--danger);
}

.message.ok {
  color: var(--success);
}

.hidden {
  display: none;
}

footer {
  color: var(--text-secondary);
  font-size: 14px;
  border-top: 1px solid var(--border);
  padding: 24px 0 40px;
}

.links {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-top: 24px;
}

.links a {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  text-decoration: none;
  color: var(--text);
}

.links a strong {
  display: block;
  color: var(--primary);
  margin-bottom: 4px;
}