:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #5f6b7a;
  --line: #d8dee8;
  --bg: #f5f7fa;
  --panel: #ffffff;
  --accent: #126d79;
  --accent-strong: #005ea8;
  --warning: #9a3412;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", Arial, sans-serif; background: var(--bg); color: var(--ink); }
header { min-height: 86px; display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 8px 28px; background: #fff; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; min-height: 32px; font-weight: 800; white-space: nowrap; }
.brand-mark { width: 24px; height: 24px; object-fit: contain; }
.session-tools { display: flex; align-items: flex-end; flex-direction: column; gap: 3px; margin-left: auto; }
.ribbon-date { color: var(--muted); font-size: 14px; line-height: 1; white-space: nowrap; }
nav { display: flex; align-items: center; gap: 14px; padding: 10px 22px; background: #fff; border-bottom: 1px solid var(--line); }
nav a, .link-button { color: var(--accent); font-weight: 700; text-decoration: none; background: transparent; border: 0; padding: 0; cursor: pointer; font: inherit; }
main { max-width: 1160px; margin: 0 auto; padding: 24px; }
h1 { margin: 0 0 12px; font-size: 28px; }
h2 { margin: 0 0 10px; font-size: 20px; }
p { line-height: 1.5; }
.panel, .form-block { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 20px; margin-bottom: 16px; }
.notice { background: #fff7ed; border: 1px solid #fed7aa; border-radius: 6px; padding: 12px; color: var(--warning); font-weight: 700; }
.dev-code { background: #eaf7ef; border: 1px solid #b7e2c2; border-radius: 6px; padding: 12px; }
.acting-indicator { display: flex; align-items: center; gap: 18px; width: min(556px, 48vw); min-height: 60px; padding: 8px 28px; border-radius: 3px; background: var(--accent-strong); color: #fff; font-size: 15px; font-weight: 600; line-height: 1.2; }
.person-icon { flex: 0 0 38px; width: 38px; height: 38px; object-fit: contain; }
.choice-grid, .scope-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.choice, .scope-card { display: flex; flex-direction: column; gap: 8px; min-height: 120px; padding: 18px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink); text-decoration: none; }
.choice strong, .scope-card strong { font-size: 18px; }
.choice span, .scope-card span, .scope-card small { color: var(--muted); }
.form { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
label { display: flex; flex-direction: column; gap: 6px; }
label span { color: var(--muted); font-size: 13px; font-weight: 800; }
input { width: 100%; border: 1px solid #c9d1dd; border-radius: 4px; padding: 10px; font: inherit; background: #fff; }
button, .button { display: inline-flex; align-items: center; justify-content: center; border: 0; border-radius: 5px; padding: 10px 14px; background: var(--accent); color: #fff; font-weight: 800; text-decoration: none; cursor: pointer; }
button.secondary { background: #667085; }
.actions { grid-column: 1 / -1; display: flex; align-items: center; justify-content: flex-end; gap: 10px; flex-wrap: wrap; }
.form-block summary { cursor: pointer; font-weight: 800; margin-bottom: 12px; }
.data-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 0; }
.data-grid div { border: 1px solid var(--line); border-radius: 5px; padding: 10px; background: #fff; }
dt { color: var(--muted); font-size: 12px; font-weight: 800; margin-bottom: 5px; }
dd { margin: 0; min-height: 20px; overflow-wrap: anywhere; }
.metric-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; }
.metric { display: flex; flex-direction: column; gap: 6px; padding: 16px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink); text-decoration: none; }
.metric strong { font-size: 28px; }
.metric span { color: var(--muted); font-weight: 700; }
table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 13px; }
th { background: #eef2f4; }
.announcement-card, .announcement-detail { background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 20px; margin-bottom: 16px; }
.announcement-card h2 { margin: 8px 0 10px; }
.announcement-card h2 a { color: var(--ink); text-decoration: none; }
.announcement-date { color: var(--muted); font-size: 14px; font-weight: 800; }
.announcement-detail p { max-width: 980px; }
.announcement-documents { margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line); }
.document-link { display: inline-flex; align-items: center; padding: 10px 14px; border-radius: 5px; background: var(--accent); color: #fff; font-weight: 800; text-decoration: none; }
.toolbar-line { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.toolbar-line h1 { margin: 0; }
.inline-form { display: inline-flex; margin-left: 6px; }
.inline-form button { padding: 6px 9px; font-size: 12px; }
.board-form textarea { min-height: 160px; }

@media (max-width: 760px) {
  header { align-items: flex-start; flex-direction: column; min-height: auto; padding: 10px 14px; }
  .session-tools { align-items: flex-start; flex-direction: column; width: 100%; margin-left: 0; }
  nav { align-items: flex-start; flex-wrap: wrap; padding: 9px 14px; }
  main { padding: 14px; }
  .acting-indicator { width: 100%; max-width: 100%; padding: 9px 14px; }
}