:root {
  --ink: #1c2320;
  --paper: #eef0ea;
  --panel: #ffffff;
  --line: #d6dad2;
  --ok: #2f6f4f;
  --pending: #a8501f;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --sans: "Inter", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 20px 32px;
  border-bottom: 2px solid var(--ink);
  background: var(--paper);
}
.topbar__brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.01em;
}
.topbar__brand span {
  font-weight: 400;
  color: #5b6259;
}
.topbar__meta {
  font-family: var(--mono);
  font-size: 12px;
  color: #5b6259;
}

.deck {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 24px 96px;
}

.panel {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.panel__num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--pending);
  padding-top: 4px;
}
.panel__body h2 {
  margin: 0 0 4px;
  font-size: 20px;
}
.panel__hint {
  margin: 0 0 20px;
  color: #5b6259;
  font-size: 14px;
  max-width: 62ch;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 16px;
  margin-bottom: 14px;
}
label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: #3a3f38;
}
label.block { margin-bottom: 14px; }
input, textarea {
  font-family: var(--sans);
  font-size: 14px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--panel);
  color: var(--ink);
}
textarea { resize: vertical; font-family: var(--mono); font-size: 13px; }
input:focus, textarea:focus, button:focus, a.btn:focus {
  outline: 2px solid var(--ink);
  outline-offset: 1px;
}

.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  padding: 9px 16px;
  border: 1px solid var(--ink);
  border-radius: 3px;
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn--primary {
  background: var(--ink);
  color: var(--paper);
  margin-top: 6px;
}
.btn--primary:hover { background: #000; }
.btn--copy {
  font-size: 12px;
  padding: 4px 10px;
}
.btn--small {
  font-size: 12px;
  padding: 6px 12px;
}

.file-block {
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.file-block__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: #e4e7de;
  font-family: var(--mono);
  font-size: 12.5px;
}
.file-block pre {
  margin: 0;
  padding: 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 220px;
  overflow: auto;
  background: var(--panel);
}

.action-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}
.action-row:first-of-type { border-top: none; }
.action-row__label {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.action-row__label span {
  font-size: 12.5px;
  color: #5b6259;
}
.status {
  font-family: var(--mono);
  font-size: 12px;
  min-width: 90px;
}
.status--ok { color: var(--ok); }
.status--err { color: var(--pending); }

.checklist-title {
  font-size: 14px;
  margin: 18px 0 8px;
}
.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}
.checklist label {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .panel { grid-template-columns: 24px 1fr; }
  .action-row { flex-wrap: wrap; }
}