html { scroll-behavior: smooth; }
body { margin: 0; }
* { box-sizing: border-box; }

.fv-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(16,38,59,.08);
}
.fv-header .wp-block-navigation { font-size: .9rem; font-weight: 700; }
.fv-header .wp-block-navigation-item__content { color: #10263B; }
.fv-logo img { width: min(360px, 46vw); height: auto; }

.fv-hero { min-height: 78vh; }
.fv-hero .wp-block-cover__background { background: linear-gradient(90deg,rgba(5,26,43,.86),rgba(5,26,43,.45) 52%,rgba(5,26,43,.08)) !important; }
.fv-hero-copy { max-width: 760px; }
.fv-kicker { letter-spacing: .14em; font-weight: 800; text-transform: uppercase; }
.fv-hero h1 { line-height: 1.06; margin-top: .3em; margin-bottom: .25em; text-wrap: balance; }
.fv-hero .wp-block-buttons { margin-top: 1.8rem; }
.fv-hero .is-style-outline .wp-block-button__link { color: #fff; border-color: rgba(255,255,255,.75); }

.fv-section { padding-top: clamp(4rem,8vw,7rem); padding-bottom: clamp(4rem,8vw,7rem); }
.fv-section-title { margin-bottom: 2.3rem; }
.fv-section-title .fv-en { display:block; color:#4A8FBD; letter-spacing:.16em; font-size:.75rem; font-weight:800; text-transform:uppercase; margin-bottom:.5rem; }
.fv-section-title h2 { margin:0; line-height:1.25; font-size:clamp(2rem,4vw,3.4rem); }
.fv-lead { font-size: clamp(1.05rem,1.4vw,1.2rem); }

.fv-about-grid { gap: clamp(2rem,5vw,5rem); align-items: center; }
.fv-about-image img { border-radius: 28px; box-shadow: 0 24px 60px rgba(16,38,59,.16); }

.fv-news { background:#10263B; color:#fff; }
.fv-news a { color:#fff; }
.fv-news .wp-block-post { border-top:1px solid rgba(255,255,255,.18); padding:1.1rem 0; }
.fv-news .wp-block-post:last-child { border-bottom:1px solid rgba(255,255,255,.18); }
.fv-news .wp-block-post-title { font-size:1rem; margin:0; }
.fv-news .wp-block-post-date { opacity:.7; font-size:.8rem; }

.fv-card-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:22px; }
.fv-card { background:#fff; border:1px solid rgba(16,38,59,.08); border-radius:24px; overflow:hidden; box-shadow:0 14px 34px rgba(16,38,59,.08); }
.fv-card img { width:100%; aspect-ratio:4/3; object-fit:cover; display:block; }
.fv-card-body { padding:1.35rem 1.35rem 1.5rem; }
.fv-card h3 { margin:.1rem 0 .65rem; line-height:1.35; font-size:1.16rem; }
.fv-card p { margin:0; color:#4f6273; font-size:.94rem; }
.fv-card a { display:inline-block; margin-top:.9rem; font-weight:800; text-decoration:none; }

.fv-profiles { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:28px; }
.fv-profile { display:grid; grid-template-columns:minmax(150px, 38%) 1fr; background:#fff; border-radius:28px; overflow:hidden; border:1px solid rgba(16,38,59,.08); box-shadow:0 16px 40px rgba(16,38,59,.08); }
.fv-profile img { width:100%; height:100%; min-height:360px; object-fit:cover; }
.fv-profile-body { padding:2rem; }
.fv-profile-role { color:#4A8FBD; font-size:.82rem; font-weight:800; letter-spacing:.12em; }
.fv-profile h3 { margin:.3rem 0 1rem; font-size:1.7rem; }

.fv-social-band { background:linear-gradient(135deg,#EEF7FA,#D6EDF4); border-radius:32px; padding:clamp(2rem,5vw,4.5rem); }

.fv-support { background:#F7FAFC; }
.fv-sponsors { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:12px; }
.fv-sponsor { min-height:94px; display:flex; align-items:center; justify-content:center; text-align:center; padding:1rem; border-radius:16px; background:#fff; border:1px solid rgba(16,38,59,.08); color:#10263B; text-decoration:none; font-weight:800; transition:.2s ease; }
.fv-sponsor:hover { transform:translateY(-3px); box-shadow:0 10px 25px rgba(16,38,59,.08); }
.fv-sponsor small { display:block; font-weight:500; color:#6a7b89; }

.fv-partners { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:22px; margin-top:3rem; }
.fv-partner { padding:2rem; border-radius:24px; background:#fff; border:1px solid rgba(16,38,59,.08); }
.fv-partner h3 { margin-top:0; }

.fv-timeline { border-left:2px solid #C9DEE8; margin-left:.55rem; padding-left:2rem; }
.fv-timeline-item { position:relative; margin:0 0 1.7rem; }
.fv-timeline-item:before { content:""; position:absolute; width:12px; height:12px; border-radius:50%; background:#2F638A; left:-2.43rem; top:.55rem; box-shadow:0 0 0 5px #EEF7FA; }
.fv-timeline time { font-weight:800; color:#2F638A; font-size:.88rem; }
.fv-timeline p { margin:.2rem 0 0; }

.fv-reports { display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:12px; }
.fv-report { display:flex; flex-direction:column; justify-content:space-between; min-height:170px; padding:1.3rem; border-radius:20px; background:#10263B; color:#fff; text-decoration:none; }
.fv-report strong { font-size:1.1rem; }
.fv-report span { opacity:.7; font-size:.82rem; }

.fv-contact { background:#10263B; color:#fff; }
.fv-contact-box { display:flex; gap:2rem; align-items:center; justify-content:space-between; }
.fv-contact-box h2 { margin:0; font-size:clamp(2rem,4vw,3.5rem); line-height:1.2; }
.fv-contact-box p { margin:.8rem 0 0; opacity:.8; }
.fv-contact .wp-block-button__link { background:#fff; color:#10263B; }

.fv-footer { background:#071827; color:#fff; padding-top:3rem; padding-bottom:2rem; }
.fv-footer a { color:#fff; }
.fv-footer .fv-logo img { filter:brightness(0) invert(1); opacity:.95; }
.fv-footer-meta { opacity:.65; font-size:.8rem; }

@media (max-width: 980px) {
  .fv-card-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .fv-sponsors { grid-template-columns:repeat(3,minmax(0,1fr)); }
  .fv-profiles { grid-template-columns:1fr; }
  .fv-reports { grid-template-columns:repeat(3,minmax(0,1fr)); }
}
@media (max-width: 720px) {
  .fv-logo img { width:260px; max-width:58vw; }
  .fv-header { position:relative; }
  .fv-hero { min-height:70vh; }
  .fv-hero .wp-block-cover__background { background:linear-gradient(180deg,rgba(5,26,43,.40),rgba(5,26,43,.90) 65%) !important; }
  .fv-card-grid { grid-template-columns:1fr; }
  .fv-sponsors { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .fv-partners { grid-template-columns:1fr; }
  .fv-profile { grid-template-columns:1fr; }
  .fv-profile img { min-height:300px; max-height:420px; }
  .fv-reports { grid-template-columns:1fr 1fr; }
  .fv-contact-box { display:block; }
  .fv-contact-box .wp-block-buttons { margin-top:1.5rem; }
}
.fv-group-card { height:100%; background:#fff; border:1px solid rgba(16,38,59,.08); border-radius:24px; overflow:hidden; box-shadow:0 14px 34px rgba(16,38,59,.08); }
.fv-group-card .wp-block-image { margin:0; }
.fv-group-card .wp-block-image img { width:100%; aspect-ratio:4/3; object-fit:cover; }
.fv-group-card-copy { padding:1.25rem 1.3rem 1.5rem; }
.fv-group-card-copy h3 { margin-top:0; line-height:1.35; font-size:1.16rem; }
.fv-group-card-copy p { color:#4f6273; font-size:.94rem; }
.fv-group-card-copy a { font-weight:800; text-decoration:none; }
.fv-profile-block { height:100%; background:#fff; border-radius:28px; overflow:hidden; border:1px solid rgba(16,38,59,.08); box-shadow:0 16px 40px rgba(16,38,59,.08); }
.fv-profile-block .wp-block-image { margin:0; }
.fv-profile-block .wp-block-image img { width:100%; aspect-ratio:16/10; object-fit:cover; object-position:center; }
.fv-profile-block-copy { padding:1.6rem 1.8rem 2rem; }
.fv-profile-block-copy h3 { margin:.25rem 0 .8rem; font-size:1.65rem; }
.fv-profile-block-copy .fv-profile-role { margin:0; }
.fv-report-button .wp-block-button__link { width:100%; min-height:92px; display:flex; align-items:center; justify-content:center; text-align:center; border-radius:18px; background:#10263B; }


/* v0.2 dynamic management cards */
.fv-groups-grid { margin-top: 1.5rem; }
.fv-group-image, .fv-member-image { overflow:hidden; background:linear-gradient(135deg,#dceef4,#bcdbe8); }
.fv-group-image img { width:100%; aspect-ratio:4/3; object-fit:cover; display:block; }
.fv-member-image img { width:100%; aspect-ratio:4/3; object-fit:cover; display:block; }
.fv-image-placeholder { aspect-ratio:4/3; }
.fv-card-description p:first-child, .fv-member-description p:first-child { margin-top:0; }
.fv-card-description p:last-child, .fv-member-description p:last-child { margin-bottom:0; }
.fv-empty { padding:1.4rem; border-radius:16px; background:#fff; border:1px dashed rgba(16,38,59,.2); color:#4f6273; }
.fv-sponsor { flex-direction:column; gap:.6rem; }
.fv-sponsor img { width:100%; max-width:150px; height:54px; object-fit:contain; display:block; }
.fv-sponsor-name { line-height:1.35; }
.fv-sponsor-name:not(.fv-sponsor-name-only) { font-size:.76rem; font-weight:650; color:#607282; }

/* v0.3: 管理画面から追加できる活動報告 */
.fv-report-buttons {
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:14px;
  max-width:1200px;
  margin:0 auto;
}
.fv-report-link {
  min-height:92px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  padding:16px 14px;
  border-radius:18px;
  background:#10263B;
  color:#fff;
  text-align:center;
  text-decoration:none;
  transition:transform .2s ease, box-shadow .2s ease, opacity .2s ease;
}
.fv-report-link:hover {
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 10px 24px rgba(16,38,59,.18);
}
.fv-report-link strong { font-size:1.02rem; line-height:1.35; }
.fv-report-link span { font-size:.88rem; opacity:.82; }
@media (max-width:800px) {
  .fv-report-buttons { grid-template-columns:1fr 1fr; gap:10px; }
}
@media (max-width:600px) {
  .fv-report-buttons { grid-template-columns:1fr 1fr; gap:10px; }
  .fv-report-link { min-height:84px; padding:13px 10px; }
}