.mast nav a { white-space: nowrap; min-height: 44px; display: inline-flex; align-items: center; }
.foot { padding-bottom: 100px; }
.foot nav a { min-height: 44px; display: inline-flex; align-items: center; white-space: nowrap; }
.site-overview-trigger { position: fixed; z-index: 25; right: max(20px, env(safe-area-inset-right)); bottom: max(18px, env(safe-area-inset-bottom)); border: 1px solid #294d70; border-radius: 4px; padding: 12px 22px; min-height: 48px; color: white; background: #294d70; box-shadow: 0 3px 14px #20364b24; cursor: pointer; font: 650 17px/1.5 var(--pv-sans); }
.site-overview-trigger:hover { background: #20364b; }
.site-overview-dialog { width: min(1040px, calc(100vw - 48px)); max-width: none; max-height: calc(100dvh - 48px); padding: 0; border: 1px solid #c1ced9; border-radius: 4px; color: var(--pv-ink); background: white; font: 17px/1.75 var(--pv-sans); overscroll-behavior: contain; }
.site-overview-dialog::backdrop { background: #12273e70; }
.site-overview-head { position: sticky; top: 0; z-index: 1; display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; padding: 24px 30px 18px; background: white; border-bottom: 1px solid var(--pv-rule); }
.site-overview-head p { margin: 0; }
.site-overview-head h2 { margin: 5px 0 8px; font: 650 clamp(21px, 2.5vw, 28px)/1.6 var(--pv-serif); text-wrap: pretty; }
.site-overview-kicker { font-size: 16px; font-weight: 650; color: var(--pv-brown); }
.site-overview-current { font-size: 16px; color: var(--pv-muted); }
.site-overview-close { display: inline-flex; align-items: center; justify-content: center; gap: 10px; flex: 0 0 auto; min-height: 44px; border: 1px solid #8aa0b1; border-radius: 3px; padding: 7px 13px; background: white; color: var(--pv-ink); font: 650 16px/1.5 var(--pv-sans); cursor: pointer; }
.site-overview-close span { font-size: 24px; line-height: 1; }
.site-overview-close:hover { background: var(--pv-tint); }
.site-overview-body { padding: 24px 30px 28px; }
.site-overview-body section + section { margin-top: 26px; }
.site-overview-body h3 { margin: 0 0 12px; font-size: 19px; line-height: 1.6; font-weight: 700; }
.site-overview-courses, .site-overview-resources, .site-overview-foundations { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.site-overview-dialog a { color: var(--pv-ink); }
.site-overview-courses>a, .site-overview-resources>a { display: flex; flex-direction: column; gap: 8px; min-width: 0; padding: 15px 17px; border: 1px solid #c4d1dc; border-top: 3px solid #8ba2b5; background: white; text-decoration: none; }
.site-overview-courses strong, .site-overview-resources strong { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; color: var(--pv-blue); font-size: 19px; line-height: 1.6; }
.site-overview-courses strong>span, .site-overview-resources strong>span { flex-shrink: 0; }
.site-overview-courses a>span, .site-overview-resources a>span { font-size: 16px; line-height: 1.75; }
.site-overview-resources>a { background: var(--pv-tint); border-top-width: 1px; }
.site-overview-dialog a[aria-current="page"] { border-color: #294d70; background: #eaf0f6; }
.site-overview-dialog a[aria-current="page"] strong::before { content: "現在"; align-self: center; padding: 1px 6px; background: var(--pv-blue); color: white; font: 650 12px/1.7 var(--pv-sans); }
.site-overview-courses>a:hover, .site-overview-resources>a:hover { border-color: var(--pv-blue); background: #f4f7fa; }
.site-overview-foundations a { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 48px; padding: 10px 0; border-block: 1px solid var(--pv-rule); text-decoration: none; font-size: 16px; }
.site-overview-course-tools { padding: 17px 20px; background: var(--pv-cream); border-left: 3px solid #a27554; }
.site-overview-course-tools nav { display: flex; flex-wrap: wrap; gap: 5px 24px; }
.site-overview-course-tools a { display: inline-flex; align-items: center; min-height: 44px; font-size: 16px; }
.site-overview-company { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 24px; margin-top: 26px; padding-top: 15px; border-top: 1px solid var(--pv-rule); color: var(--pv-muted); font-size: 16px; }
.site-overview-company>a { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; }
@media(max-width: 760px) {
  .site-overview-dialog { width: calc(100vw - 24px); max-height: calc(100dvh - 24px); }
  .site-overview-head { padding: 17px 18px 13px; gap: 12px; }
  .site-overview-head h2 { font-size: 21px; }
  .site-overview-body { padding: 19px 18px 24px; }
  .site-overview-courses { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-overview-resources, .site-overview-foundations { grid-template-columns: 1fr; }
  .site-overview-courses>a { padding: 12px; }
  .site-overview-courses strong { display: block; font-size: 18px; }
  .site-overview-courses strong>span { margin-left: 8px; }
  .site-overview-close { gap: 5px; padding: 7px 9px; }
  .site-overview-course-tools { padding: 14px; }
}
@media(max-width: 600px) {
  .mast nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); justify-content: initial; column-gap: 14px; row-gap: 0; }
  .mast nav a { min-height: 44px; font-size: .95rem; }
  .site-overview-trigger { right: 14px; bottom: max(12px, env(safe-area-inset-bottom)); padding: 10px 18px; font-size: 16px; }
  .site-overview-current { font-size: 15px; }
  .site-overview-company { justify-content: flex-start; }
}
@media(max-width: 350px) {
  .site-overview-courses { grid-template-columns: 1fr; }
}
@media print { .site-overview-trigger, .site-overview-dialog { display: none !important; } }