:root {
  --bg: #f6f5f1;
  --card: #ffffff;
  --ink: #1d2330;
  --muted: #6b7280;
  --line: #e3e1da;
  --accent: #2f6f5e;
  --accent-ink: #ffffff;
  --accent-soft: #e4f0ec;
  --warn: #b4442f;
  --warn-soft: #fbe9e5;
  --radius: 12px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
h1, h2, h3 { margin: 0 0 0.5rem; line-height: 1.2; }
h1 { font-size: 1.4rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.hidden { display: none !important; }

.topbar {
  display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
  padding: 0.75rem 1.25rem; background: var(--card); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 5;
}
.topbar .brand { font-weight: 700; }
.topbar .spacer { flex: 1; }
main { max-width: 1100px; margin: 0 auto; padding: 1.25rem; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; }
.stack > * + * { margin-top: 1rem; }

label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.3rem; }
input[type="text"], input[type="password"], input[type="number"], textarea {
  width: 100%; padding: 0.6rem 0.7rem; font: inherit; border: 1px solid var(--line);
  border-radius: 8px; background: #fff;
}
textarea { min-height: 7rem; resize: vertical; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

button, .btn {
  font: inherit; font-weight: 600; cursor: pointer; border-radius: 8px; padding: 0.55rem 1rem;
  border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); text-decoration: none;
  display: inline-block;
}
button.ghost, .btn.ghost { background: transparent; color: var(--accent); }
button.danger { background: var(--warn); border-color: var(--warn); }
button.ghost.danger { background: transparent; color: var(--warn); }
button.link { background: none; border: none; color: var(--muted); padding: 0.2rem 0.4rem; font-weight: 500; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.error { background: var(--warn-soft); color: var(--warn); padding: 0.6rem 0.8rem; border-radius: 8px; }
.notice { background: var(--accent-soft); color: var(--accent); padding: 0.6rem 0.8rem; border-radius: 8px; }

/* login */
.login-wrap { max-width: 820px; margin: 3rem auto; padding: 0 1rem; }
.login-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }
.login-grid form > * + * { margin-top: 0.8rem; }
#staff-code { text-transform: uppercase; letter-spacing: 0.25em; font-weight: 700; }

/* founder dashboard */
.activity-editor { border: 1px dashed var(--line); border-radius: 10px; padding: 0.9rem; background: #fcfcfa; }
.activity-editor + .activity-editor { margin-top: 0.8rem; }
.row { display: flex; gap: 0.6rem; align-items: end; flex-wrap: wrap; }
.row > .grow { flex: 1; min-width: 160px; }
.row > .num { width: 90px; }
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chip-check { position: relative; }
.chip-check input { position: absolute; opacity: 0; }
.chip-check span {
  display: inline-block; padding: 0.3rem 0.65rem; border: 1px solid var(--line); border-radius: 999px;
  font-size: 0.85rem; cursor: pointer; background: #fff; user-select: none;
}
.chip-check input:checked + span { background: var(--accent); color: #fff; border-color: var(--accent); }
.chip-check input:focus-visible + span { outline: 2px solid var(--accent); }

.session-list { display: grid; gap: 0.7rem; }
.session-item { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.session-item .grow { flex: 1; min-width: 200px; }
.code { font-family: ui-monospace, monospace; font-weight: 700; letter-spacing: 0.15em; font-size: 1.05rem;
  background: var(--accent-soft); color: var(--accent); padding: 0.15rem 0.5rem; border-radius: 6px; }
.badge { font-size: 0.75rem; padding: 0.15rem 0.5rem; border-radius: 999px; background: #eceae4; color: var(--muted); }
.badge.open { background: var(--accent-soft); color: var(--accent); }

/* board */
.status-dot { width: 10px; height: 10px; border-radius: 50%; background: #c9c6bd; display: inline-block; }
.status-dot.live { background: #2fa36b; }
.status-dot.down { background: var(--warn); }
.board { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 1rem; }
.child-card h2 { font-size: 1.1rem; }
.activity-block + .activity-block { margin-top: 0.8rem; padding-top: 0.8rem; border-top: 1px solid var(--line); }
.activity-name { font-weight: 600; font-size: 0.9rem; }
.intel-tags { display: flex; flex-wrap: wrap; gap: 0.25rem; margin: 0.25rem 0 0.5rem; }
.intel-tag { font-size: 0.7rem; padding: 0.1rem 0.45rem; border-radius: 999px; background: #eef0f6; color: #4a5372; }
.param-btn {
  display: flex; justify-content: space-between; align-items: center; width: 100%;
  background: #fff; color: var(--ink); border: 1px solid var(--line); padding: 0.55rem 0.75rem;
  font-weight: 500; margin-top: 0.35rem; transition: background 0.3s;
}
.param-btn .val { font-weight: 700; font-variant-numeric: tabular-nums; }
.param-btn .val.unset { color: var(--muted); font-weight: 500; }
.param-btn:hover:not(:disabled) { border-color: var(--accent); }
.param-btn.flash { background: #fff4c7; }
.param-btn:disabled { opacity: 1; cursor: default; }

.sheet-backdrop { position: fixed; inset: 0; background: rgba(20, 24, 32, 0.35); z-index: 20; }
.sheet {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 21; background: var(--card);
  border-radius: 16px 16px 0 0; padding: 1.25rem 1.25rem 1.75rem; max-width: 640px; margin: 0 auto;
  box-shadow: 0 -8px 30px rgba(0, 0, 0, 0.15);
}
.sheet .big { font-size: 3rem; font-weight: 800; text-align: center; font-variant-numeric: tabular-nums; }
.sheet .big.unset { color: var(--muted); }
.sheet input[type="range"] { width: 100%; height: 2.2rem; accent-color: var(--accent); }
.sheet .scale { display: flex; justify-content: space-between; color: var(--muted); font-size: 0.85rem; }
.sheet .actions { display: flex; gap: 0.6rem; justify-content: flex-end; margin-top: 1rem; }

/* final report */
.topbar .session-title { font-weight: 700; }
.report-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.radar-wrap { display: flex; justify-content: center; margin: 0.4rem 0 0.2rem; }
.radar-wrap svg { width: min(100%, 560px); height: auto; overflow: visible; }
.score-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; margin-top: 0.4rem; }
.score-table th {
  text-align: left; font-size: 0.75rem; letter-spacing: 0.02em; color: var(--muted);
  font-weight: 600; padding: 0.35rem 0.45rem; border-bottom: 1px solid var(--line);
}
.score-table td { padding: 0.45rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.score-table td.num { font-variant-numeric: tabular-nums; font-weight: 700; white-space: nowrap; }
.prose { white-space: pre-wrap; line-height: 1.5; margin: 0.35rem 0 0; }
.section-label { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); margin: 0.9rem 0 0.25rem; }