:root {
  color-scheme: dark;
  --bg: #10140f;
  --card: #1b2419;
  --line: #2c3a28;
  --text: #e8f2e3;
  --muted: #9aab96;
  --accent: #c6ef8d;
  --ink: #14210c;
  --danger: #ffb4a8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, sans-serif;
}

main {
  width: min(600px, 100%);
  margin: 0 auto;
  padding: 28px 20px 48px;
}

h1 {
  margin: 0 0 8px;
  font-size: 2rem;
  line-height: 1.1;
}

p { line-height: 1.4; }

.muted { color: var(--muted); }

.card, form, .stack {
  display: grid;
  gap: 14px;
}

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

code.pair {
  display: block;
  margin: 8px 0 0;
  font-size: 2rem;
  letter-spacing: 0.18em;
  color: var(--accent);
}

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

button, .file {
  min-height: 56px;
  border: 0;
  border-radius: 14px;
  background: var(--accent);
  color: var(--ink);
  font-weight: 700;
  padding: 0 16px;
}

button.ghost, a.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

button.door {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--danger);
}

button:disabled { opacity: 0.55; }

input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #0d120c;
  padding: 14px 16px;
}

textarea { min-height: 120px; resize: vertical; }

.file { display: grid; place-items: center; cursor: pointer; }

.file input { display: none; }

.ok { color: var(--accent); }

.warn { color: #f3d48a; }

.bad { color: var(--danger); }

ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }

li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 12px;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

li span { color: var(--muted); font-size: 0.95rem; }

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