:root {
  --bg: #ffffff;
  --page: #f4f5f7;
  --text: #222222;
  --text-2: #707579;
  --line: #e3e5e8;
  --accent: #3390ec;
  --accent-hover: #2a80d6;
  --danger: #e53935;
  --code-bg: #f4f6f8;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--page); color: var(--text); font: 400 15px/1.5 var(--font); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; color: inherit; }

.header { background: var(--accent); color: #fff; }
.header-inner { max-width: 760px; margin: 0 auto; padding: 0 20px; height: 56px; display: flex; align-items: center; justify-content: space-between; }
.brand { color: #fff; font-weight: 700; font-size: 20px; }
.brand:hover { text-decoration: none; }
.header-account { display: flex; align-items: center; gap: 14px; font-size: 14px; }
.header-account button { background: rgba(255, 255, 255, .18); border: 0; color: #fff; border-radius: 6px; padding: 6px 12px; cursor: pointer; }
.header-account button:hover { background: rgba(255, 255, 255, .28); }

.main { max-width: 760px; margin: 32px auto; padding: 0 20px; }
.card { background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 28px; margin-bottom: 20px; }
.card h1 { margin: 0 0 8px; font-size: 24px; }
.card h2 { margin: 0 0 16px; font-size: 18px; }
.lead { margin: 0 0 22px; color: var(--text-2); }

.narrow { max-width: 420px; margin: 0 auto; }

.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 14px; }
.field .hint { margin-top: 4px; color: var(--text-2); font-size: 13px; }
.input, textarea.input, select.input {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); outline: 0;
}
textarea.input { min-height: 90px; resize: vertical; }
.input:focus { border-color: var(--accent); }
.radios { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.radios label { display: flex; align-items: center; gap: 6px; font-weight: 400; margin: 0; }

.btn { display: inline-flex; align-items: center; justify-content: center; height: 42px; padding: 0 22px; border: 0; border-radius: 8px; background: var(--accent); color: #fff; font-weight: 600; cursor: pointer; }
.btn:hover { background: var(--accent-hover); text-decoration: none; }
.btn:disabled { opacity: .6; cursor: default; }
.btn-block { width: 100%; }
.btn-link { background: none; border: 0; color: var(--accent); cursor: pointer; padding: 0; }

.menu { list-style: none; margin: 0; padding: 0; }
.menu li + li { border-top: 1px solid var(--line); }
.menu a { display: block; padding: 16px 4px; font-weight: 500; }
.menu a span { display: block; color: var(--text-2); font-weight: 400; font-size: 14px; }

.props { display: grid; grid-template-columns: 170px 1fr; gap: 14px 18px; margin: 0; }
.props dt { color: var(--text-2); font-size: 14px; padding-top: 2px; }
.props dd { margin: 0; }
.secret { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.mono { font-family: var(--mono); font-size: 14px; background: var(--code-bg); padding: 3px 8px; border-radius: 6px; word-break: break-all; }
.copy { background: none; border: 1px solid var(--line); border-radius: 6px; padding: 2px 10px; font-size: 13px; cursor: pointer; color: var(--text-2); }
.copy:hover { color: var(--text); border-color: var(--text-2); }
pre.mono { display: block; padding: 12px 14px; margin: 0; white-space: pre-wrap; font-size: 12.5px; }
.warning { padding: 12px 14px; border-radius: 8px; background: #fff6e5; color: #7a5200; font-size: 14px; margin-bottom: 20px; }

.footer { text-align: center; color: var(--text-2); font-size: 13px; padding: 20px 0 40px; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: #333; color: #fff; padding: 10px 18px; border-radius: 8px; font-size: 14px; }
.toast.error { background: var(--danger); }

@media (max-width: 600px) {
  .card { padding: 20px 16px; }
  .props { grid-template-columns: 1fr; gap: 2px; }
  .props dd { margin-bottom: 12px; }
}