:root{
  --bg:#f6f7fb;
  --paper:#ffffff;
  --paper2:#fbfbfe;
  --text:#101828;
  --muted:#475467;
  --ink:#0f1b33;

  --primary:#1e3a8a;
  --primary2:#0b2a6f;
  --accent:#d97706;

  --border: rgba(16,24,40,.12);
  --border2: rgba(16,24,40,.08);

  --radius: 16px;
  --shadow: 0 18px 44px rgba(16,24,40,.12);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: "Noto Sans JP", system-ui, -apple-system, Segoe UI, sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 500px at 20% 10%, rgba(30,58,138,.12), transparent 60%),
    radial-gradient(900px 500px at 80% 0%, rgba(217,119,6,.10), transparent 60%),
    var(--bg);
}

a{ color:inherit; }
.container{ width:min(1100px, 92vw); margin:0 auto; }

.topbar{
  position: sticky;
  top:0;
  z-index:20;
  backdrop-filter: blur(10px);
  background: rgba(246,247,251,.75);
  border-bottom: 1px solid var(--border2);
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding:.8rem 0;
}

.brand{
  display:flex;
  align-items:center;
  gap:.6rem;
  text-decoration:none;
  font-weight:800;
  letter-spacing:.02em;
}
.brand__dot{
  width:12px; height:12px; border-radius:999px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 8px 24px rgba(30,58,138,.25);
}
.nav{ display:flex; gap:.9rem; flex-wrap:wrap; }
.nav a{
  text-decoration:none;
  padding:.35rem .6rem;
  border-radius:999px;
  border:1px solid transparent;
  color: var(--muted);
}
.nav a:hover{
  color: var(--text);
  border-color: var(--border);
  background: rgba(255,255,255,.6);
}

.hero{ padding: 2.2rem 0 1.2rem; }
.hero__grid{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 1.2rem;
  align-items: start;
}
@media (max-width: 900px){
  .hero__grid{ grid-template-columns: 1fr; }
}
.kicker{
  margin:0 0 .5rem;
  color: var(--muted);
  font-weight:700;
  letter-spacing:.04em;
}
h1{
  margin:.2rem 0 .6rem;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  line-height:1.15;
  color: var(--ink);
}
.lead{
  margin:0 0 1rem;
  color: var(--muted);
  line-height:1.8;
}

.hero__chips{ display:flex; flex-wrap:wrap; gap:.45rem; margin:.8rem 0 1.2rem; }
.chip{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:.25rem .6rem;
  border-radius:999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.75);
  font-size:.82rem;
  font-weight:700;
}
.chip--muted{ opacity:.75; }
.chips{ display:flex; flex-wrap:wrap; gap:.45rem; }
.chips--tight{ gap:.35rem; }

.chip--btn{
  cursor:pointer;
  background:#fff;
}
.chip--btn:hover{ transform: translateY(-1px); }

.hero__actions{ display:flex; gap:.6rem; flex-wrap:wrap; }
.btn{
  appearance:none;
  border:1px solid transparent;
  border-radius: 999px;
  padding:.7rem 1rem;
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color:#fff;
  font-weight:800;
  text-decoration:none;
  box-shadow: 0 14px 30px rgba(30,58,138,.18);
  cursor:pointer;
}
.btn:hover{ transform: translateY(-1px); }
.btn--ghost{
  background: rgba(255,255,255,.65);
  color: var(--text);
  border-color: var(--border);
  box-shadow: none;
}
.btn--small{
  padding:.45rem .75rem;
  font-size:.9rem;
}

.hero__card{ position: relative; }
.heroCard{
  border:1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,.75);
  box-shadow: var(--shadow);
  padding: 1rem;
}
.heroCard__title{ font-weight:900; color: var(--ink); margin:.1rem 0 .8rem; }
.gridCards{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:.7rem;
}
@media (max-width: 560px){
  .gridCards{ grid-template-columns: 1fr; }
}
.miniCard{
  border:1px solid var(--border2);
  border-radius: 14px;
  background: rgba(255,255,255,.8);
  padding:.75rem;
}
.miniCard__top{ display:flex; gap:.4rem; flex-wrap:wrap; margin-bottom:.5rem; }
.miniCard__title{ font-weight:900; margin:.05rem 0 .25rem; }
.miniCard__desc{ color: var(--muted); font-size:.92rem; line-height:1.5; margin:0 0 .5rem; }
.linkBtn{
  border:none;
  background: transparent;
  color: var(--primary);
  font-weight:900;
  cursor:pointer;
  padding:0;
}
.linkBtn:hover{ text-decoration: underline; }
.hint{ margin:.8rem 0 0; color: var(--muted); font-size:.9rem; }

.section{ padding: 2.2rem 0; }
.section.alt{ background: rgba(255,255,255,.35); border-top:1px solid var(--border2); border-bottom:1px solid var(--border2); }

.sectionHead h2{
  margin:0 0 .4rem;
  font-size:1.35rem;
  color: var(--ink);
}
.sectionHead p{ margin:0 0 1.1rem; color: var(--muted); }

.paperGrid{
  display:grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 900px){
  .paperGrid{ grid-template-columns: 1fr; }
}
.paper{
  border:1px solid var(--border);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
  padding: 1rem 1rem 1.1rem;
}
.paper h3{ margin:.2rem 0 .6rem; }
.paper p{ margin:.2rem 0 0; color: var(--muted); line-height:1.8; }
.list{ margin:.3rem 0 0; padding-left: 1.1rem; color: var(--muted); line-height:1.8; }
.list li{ margin:.25rem 0; }

.toolbar{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:.8rem;
  flex-wrap:wrap;
  margin: 0 0 1rem;
}
.field{
  display:grid;
  gap:.35rem;
  min-width: 220px;
}
.field span{ font-size:.85rem; font-weight:800; color: var(--muted); }
input[type="search"], select{
  width:100%;
  padding:.65rem .75rem;
  border-radius: 12px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.85);
  outline:none;
}
input[type="search"]:focus, select:focus{
  border-color: rgba(30,58,138,.35);
  box-shadow: 0 0 0 4px rgba(30,58,138,.12);
}

.news-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:.55rem;
}
.news-item{
  display:flex;
  align-items:flex-start;
  gap:.7rem;
  padding:.65rem .75rem;
  border:1px solid var(--border);
  border-radius: 14px;
  background: rgba(255,255,255,.75);
}
.news-item time{
  min-width:7.2em;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  padding-top:.2rem;
}
.news-main{ flex: 1; min-width: 240px; }
.news-main a{ text-decoration:none; font-weight:900; }
.news-main a:hover{ text-decoration: underline; }
.news-title{ font-weight:900; }
.news-snippet{ margin:.35rem 0 0; color: var(--muted); line-height:1.6; }
.news-side{ display:flex; gap:.4rem; flex-wrap:wrap; justify-content:flex-end; }
.news-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:1.5rem;
  padding:0 .55rem;
  border-radius:999px;
  font-size:.75rem;
  font-weight:900;
  line-height:1;
  border:1px solid var(--border);
  background:#fff;
}
.news-badge.is-today{
  border-color: rgba(217,119,6,.35);
  background: rgba(217,119,6,.12);
  color: #8a4b00;
}

.timeline{
  display:grid;
  gap:.6rem;
}
.tl{
  border:1px solid var(--border);
  border-radius: 14px;
  background: rgba(255,255,255,.8);
  overflow:hidden;
}
.tl summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:.75rem;
  padding:.75rem .85rem;
}
.tl summary::-webkit-details-marker{ display:none; }
.tl__year{
  min-width: 4.2rem;
  font-weight:900;
  color: var(--primary);
}
.tl__title{ font-weight:900; }
.tl__body{
  padding: 0 .85rem .9rem;
  border-top:1px solid var(--border2);
}
.tl__body p{ margin:.6rem 0 0; color: var(--muted); line-height:1.8; }

.cards{
  display:grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 980px){
  .cards{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px){
  .cards{ grid-template-columns: 1fr; }
}
.card{
  border:1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,.85);
  box-shadow: var(--shadow);
  padding: 1rem;
  display:flex;
  flex-direction:column;
  gap:.6rem;
}
.card__top{ display:flex; gap:.4rem; flex-wrap:wrap; }
.badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:.2rem .55rem;
  border-radius:999px;
  font-weight:900;
  font-size:.78rem;
  border:1px solid rgba(30,58,138,.25);
  color: var(--primary);
  background: rgba(30,58,138,.08);
}
.badge--soft{
  border-color: var(--border);
  color: var(--muted);
  background: rgba(255,255,255,.8);
}
.card__title{ margin:.1rem 0 0; font-size:1.05rem; color: var(--ink); }
.card__desc{ margin:0; color: var(--muted); line-height:1.7; }
.card__meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.6rem;
  flex-wrap:wrap;
}
.muted{ color: var(--muted); }

.steps{ margin:.4rem 0 0; color: var(--muted); line-height:1.8; padding-left: 1.2rem; }
.empty{ color: var(--muted); margin:.4rem 0 0; }

.footer{
  padding: 1.2rem 0 2rem;
}
.footer__inner{
  display:flex;
  justify-content:space-between;
  gap:1rem;
  flex-wrap:wrap;
  border-top:1px solid var(--border2);
  padding-top:1rem;
}

/* Modal */
.modal{
  width:min(960px, 92vw);
  border:none;
  padding:0;
  background: transparent;
}
.modal::backdrop{
  background: rgba(16,24,40,.45);
  backdrop-filter: blur(3px);
}
.modal__panel{
  background: rgba(255,255,255,.95);
  border:1px solid var(--border);
  border-radius: 22px;
  box-shadow: 0 26px 80px rgba(16,24,40,.25);
  overflow:hidden;
}
.modal__head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:1rem;
  padding: 1rem 1rem .8rem;
  border-bottom:1px solid var(--border2);
}
.modal__kicker{
  color: var(--muted);
  font-weight:900;
  font-size:.85rem;
}
.modal__body{
  padding: 1rem;
  color: var(--text);
  line-height:1.85;
}
.modal__body pre{
  overflow:auto;
  padding:.9rem;
  border-radius: 14px;
  border:1px solid var(--border);
  background: rgba(246,247,251,.8);
}
.modal__body code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size:.92rem;
}
.modal__backdrop{
  position: fixed;
  inset: 0;
  border:none;
  background: transparent;
}
.modal__close{
  position: fixed;
  top: 12px;
  right: 12px;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.8);
  font-size: 24px;
  font-weight: 900;
  cursor: pointer;
}