:root {
  --sg-primary: #006d3f;
  --sg-primary-700: #0b5b35;
  --sg-bg: #f5f7f6;
  --sg-card: #ffffff;
  --text: #1a1a1a;
  --muted: #5e6a6a;
  --danger: #b00020;
  --radius: 10px;
  --space: 16px;
  --num-width: 2.8rem;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; color: var(--text); background: var(--sg-bg); }

.page-header { background: var(--sg-primary); color: #fff; padding: 20px; }
.page-header h1 { margin: 0; font-weight: 600; letter-spacing: 0.5px; }

.container { width: 100%; max-width: min(1400px, 96vw); margin: 24px auto; padding: 0 24px; display: grid; gap: 20px; grid-template-columns: 1fr; }

.card { background: var(--sg-card); border-radius: var(--radius); box-shadow: 0 8px 24px rgba(0,0,0,0.06); padding: 18px; width: 100%; position: relative; z-index: 1; }

.form-row { display: grid; grid-template-columns: 140px 1fr; gap: 12px; align-items: start; margin-bottom: 14px; }
.label { color: var(--muted); padding-top: 8px; }

.select, .textarea, .btn { border: 1px solid #d7dbda; border-radius: 8px; font-size: 14px; line-height: 1.5; }
.select { padding: 10px 12px; background: #fff; }
.textarea { padding: 12px 14px; min-height: 140px; resize: vertical; line-height: 1.6; }

.actions { display: flex; gap: 12px; margin-top: 8px; }
.btn { padding: 10px 16px; cursor: pointer; transition: background-color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .1s ease; }
.btn-primary { background: var(--sg-primary); color: #fff; border-color: var(--sg-primary); }
.btn-primary:hover { background: var(--sg-primary-700); border-color: var(--sg-primary-700); }
.btn-primary:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(0,109,63,0.24); }

.section-title { margin: 0 0 10px; font-size: 18px; color: var(--text); }
.status { color: var(--danger); min-height: 20px; }

.content-block { margin-top: 10px; }
.block-title { margin: 8px 0; font-size: 16px; color: var(--muted); }

.pre { background: #f6f8fa; border-radius: 8px; padding: 16px 18px; overflow: auto; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 15px; line-height: 1.9; }

.numbered { counter-reset: row; }
.numbered .line { counter-increment: row; position: relative; padding-left: calc(var(--num-width) + 10px); }
.numbered .line::before { content: counter(row) "."; position: absolute; left: 0; width: var(--num-width); text-align: right; color: var(--muted); }

.numbered .line { white-space: pre-wrap; }

@media (min-width: 900px) {
  .container { max-width: min(1500px, 96vw); grid-template-columns: 1fr 1fr; }
  .card { grid-column: 1 / -1; }
}

@media (min-width: 1280px) {
  .container { max-width: min(1800px, 98vw); grid-template-columns: 1fr 2fr; }
  .card { grid-column: 1 / -1; }
}