:root {
  color-scheme: light;
  --ink: #1a1916;
  --stone: #5c5850;
  --line: #e4e0d8;
  --paper: #faf9f6;
  --card: #ffffff;
  --signal: #3d5a12;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

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

header, main, footer {
  width: min(760px, calc(100% - 32px));
  margin-inline: auto;
}

header {
  padding: 28px 0 12px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
  text-decoration: none;
}

h1 {
  font-size: 2rem;
  line-height: 1.15;
  margin: 10px 0 8px;
}

.meta, footer, .note {
  font-family: "Segoe UI", system-ui, sans-serif;
  color: var(--stone);
  font-size: 0.92rem;
}

nav {
  display: flex;
  gap: 16px;
  padding: 14px 0 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 0.92rem;
}

main { padding: 8px 0 48px; }

h2 {
  font-size: 1.15rem;
  margin: 28px 0 8px;
}

ul { padding-left: 1.2rem; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 16px 0;
}

form {
  display: grid;
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 0.92rem;
}

input, select, textarea, button {
  font: inherit;
}

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

button {
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--ink);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 12px 16px;
  cursor: pointer;
}

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

.hp { position: absolute; left: -9999px; }

.status { min-height: 1.4em; }

footer {
  border-top: 1px solid var(--line);
  padding: 18px 0 32px;
}