:root {
  --accent: #c8102e;
  --accent-dark: #9d0c24;
  --bg: #f5f5f7;
  --card: #ffffff;
  --text: #222;
  --muted: #666;
  --border: #ddd;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

.site-header {
  background: var(--accent);
  color: #fff;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 12px;
  padding-bottom: 12px;
}
.brand { color: #fff; font-weight: bold; font-size: 1.15rem; text-decoration: none; }
.nav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.nav a { color: #fff; text-decoration: none; font-size: 0.92rem; }
.nav a:hover { text-decoration: underline; }
.user-email { font-size: 0.8rem; opacity: 0.85; }

.inline-form { display: inline; }
.linklike {
  background: none; border: none; color: #fff; cursor: pointer;
  font-size: 0.92rem; padding: 0; font-family: inherit;
}
.linklike:hover { text-decoration: underline; }

main.wrap { padding: 24px 16px 48px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 28px;
  margin: 0 auto;
}
.card.narrow { max-width: 460px; }
.card.wide { max-width: none; }

h1 { font-size: 1.35rem; margin: 0 0 16px; border-bottom: 3px solid var(--accent); padding-bottom: 8px; }
h2 { font-size: 1.1rem; margin: 28px 0 10px; padding-left: 10px; border-left: 5px solid var(--accent); }
h3 { font-size: 1rem; margin: 0 0 8px; }

label { display: block; margin: 12px 0 4px; font-size: 0.92rem; }
input[type="text"], input[type="email"], input[type="password"], input[type="number"], select {
  display: block;
  width: 100%;
  padding: 8px 10px;
  margin-top: 4px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }

fieldset { border: 1px solid var(--border); border-radius: 6px; margin: 12px 0; padding: 10px 14px; }
legend { font-size: 0.92rem; padding: 0 6px; }
label.radio, label.checkbox { display: flex; align-items: center; gap: 8px; margin: 6px 0; }
label.radio input, label.checkbox input { width: auto; margin: 0; }

.req {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border-radius: 4px;
  font-size: 0.72rem;
  padding: 1px 7px;
  margin-left: 6px;
  vertical-align: middle;
}
.req.long-req { background: #b8860b; }
.req.optional { background: #7f8c8d; }

.btn {
  display: inline-block;
  padding: 9px 22px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  cursor: pointer;
  font-family: inherit;
}
.btn:hover { background: #f0f0f0; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-dark); }
.btn.danger { background: #fff; border-color: #c0392b; color: #c0392b; }
.btn.danger:hover { background: #fdeeec; }
.btn.small { padding: 4px 12px; font-size: 0.85rem; }
.btn.large { padding: 12px 40px; font-size: 1.05rem; }

.error-box {
  background: #fdeeec;
  border: 1px solid #e74c3c;
  color: #a02417;
  border-radius: 6px;
  padding: 12px 16px;
  margin-bottom: 16px;
}
.error-box ul { margin: 8px 0 0; padding-left: 20px; }

.notice-box {
  background: #eafaf1;
  border: 1px solid #27ae60;
  color: #1d7a44;
  border-radius: 6px;
  padding: 10px 16px;
  margin-bottom: 16px;
}

.note { color: var(--muted); font-size: 0.88rem; }
.sub-link { margin-top: 18px; font-size: 0.9rem; }

.name-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }

.runner-block {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px 16px;
  margin: 12px 0;
  background: #fafafa;
}
.runner-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0 14px;
}
.runner-grid label { margin-top: 6px; font-size: 0.85rem; }
.long-only.hidden { display: none; }

.form-actions { margin-top: 28px; display: flex; gap: 12px; align-items: center; }

.list-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.list-table th, .list-table td { border: 1px solid var(--border); padding: 7px 10px; text-align: left; white-space: nowrap; }
.list-table th { background: #f0f0f2; }
.list-table td.actions { display: flex; gap: 6px; }
.table-scroll { overflow-x: auto; }

.detail-table { border-collapse: collapse; font-size: 0.92rem; width: 100%; max-width: 640px; }
.detail-table th, .detail-table td { border: 1px solid var(--border); padding: 7px 12px; text-align: left; }
.detail-table th { background: #f0f0f2; width: 220px; }

.counts { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.count-chip {
  background: #f0f0f2;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 0.88rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.82rem;
  padding: 16px 0 24px;
  text-align: center;
}

@media (max-width: 720px) {
  .runner-grid { grid-template-columns: 1fr 1fr; }
  .card { padding: 18px 16px; }
}