:root {
  --bg: #f5f7f5;
  --card: #ffffff;
  --text: #14211d;
  --muted: #66756f;
  --line: #d7e0db;
  --brand: #103b2f;
  --brand-2: #1a5b48;
  --danger: #9f1f1f;
  --shadow: 0 10px 25px rgba(16, 59, 47, 0.08);
  --radius: 18px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: Arial, Helvetica, sans-serif; }
body { min-height: 100vh; }
.hidden { display: none !important; }
.app-shell { max-width: 720px; margin: 0 auto; padding: 16px 14px 28px; }
.topbar { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; padding: 8px 2px 18px; }
.eyebrow { margin: 0 0 4px; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: 28px; }
h2 { margin-bottom: 10px; font-size: 22px; }
h3 { margin-bottom: 0; font-size: 18px; }
.container { display: grid; gap: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.status-pill { padding: 8px 12px; border-radius: 999px; background: #e7efeb; color: var(--brand); font-size: 12px; font-weight: 700; }
.field { display: grid; gap: 6px; margin-bottom: 12px; }
.field span, .label { font-size: 13px; color: var(--muted); }
input { width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 14px 12px; font-size: 16px; background: #fff; }
.btn { width: 100%; border: 0; border-radius: 14px; padding: 14px 14px; font-size: 16px; font-weight: 700; background: #edf2ef; color: var(--text); cursor: pointer; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-small { width: auto; padding: 10px 12px; font-size: 14px; }
.button-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.meta-item { background: #f9fbfa; border: 1px solid var(--line); border-radius: 14px; padding: 12px; }
.muted { color: var(--muted); }
.note { margin-bottom: 0; }
.message { min-height: 24px; margin-top: 12px; font-size: 14px; color: var(--brand-2); white-space: pre-wrap; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.history-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.history-list li { border: 1px solid var(--line); border-radius: 12px; padding: 12px; background: #fafcfb; }
.spinner { width: 28px; height: 28px; border-radius: 50%; border: 3px solid #d7e0db; border-top-color: var(--brand); animation: spin 1s linear infinite; margin-bottom: 12px; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (max-width: 560px) {
  .topbar { flex-direction: column; }
  .button-grid, .meta-grid { grid-template-columns: 1fr; }
}