:root{
  --bg: #0b0c10;
  --panel: #0b0c10;              /* ほぼ同色。実質フラット */
  --text: #e9ecf1;
  --muted: #a9b1c2;
  --accent: #6ea8fe;
  --border: rgba(255,255,255,.10);
  --border-strong: rgba(255,255,255,.14);
}

*{ box-sizing: border-box; }
html,body{ margin:0; padding:0; }

body{
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
               Arial, "Noto Sans JP", "Hiragino Sans", "Yu Gothic UI", "YuGothic", Meiryo, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

a{ color: var(--accent); text-decoration: none; }
a:hover{ text-decoration: underline; }

.container{
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header{
  position: sticky;
  top: 0;
  background: rgba(11,12,16,.92);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  padding: 14px 0;
}

.nav{
  display:flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a{
  color: var(--muted);
  font-size: 14px;
}

.nav a[aria-current="page"]{
  color: var(--text);
}

.nav a:hover{
  color: var(--text);
  text-decoration: none;
}

.hero{
  display:grid;
  grid-template-columns: 1.35fr .65fr;
  gap: 28px;
  padding: 26px 0;
  align-items: start;
  border-bottom: 1px solid var(--border);
}

@media (max-width: 820px){
  .hero{ grid-template-columns: 1fr; }
}

.hero__title{
  margin: 0 0 10px;
  font-size: 32px;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.page-title{
  margin: 0 0 10px;
  font-size: 28px;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.lead{
  color: var(--muted);
  margin: 0;
}

.links{
  display:flex;
  gap: 10px;
  margin: 16px 0 10px;
  flex-wrap: wrap;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: rgba(110,168,254,.16);
  color: var(--text);
  text-decoration:none;
}

.btn:hover{
  text-decoration:none;
  border-color: rgba(110,168,254,.35);
}

.btn--ghost{
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.meta{
  display:flex;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
  margin-top: 10px;
}

.meta i {
  font-size: 32px; /* ← 好きな大きさに */
}

.hero__photo{
  margin:0;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: transparent;
}

.hero__photo img{
  width: 100%;
  height: auto;
  display:block;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.04);
}

.hero__photo figcaption{
  color: var(--muted);
  font-size: 12px;
  margin-top: 8px;
}

.section{
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}

h2{
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.25;
}

h3{
  margin: 0 0 8px;
  font-size: 16px;
  line-height: 1.25;
}

p{ margin: 0; }
.section p + p{ margin-top: 10px; }

.bullets{
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 12px;
}

@media (max-width: 820px){
  .grid{ grid-template-columns: 1fr; }
}

.mini-card{
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
}

.pub-header{
  display:flex;
  align-items:flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.pub-controls{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items:center;
}

input[type="search"], select{
  padding: 9px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
  color: var(--text);
  outline: none;
}

input[type="search"]::placeholder{
  color: rgba(169,177,194,.75);
}

.pub-list{
  margin-top: 8px;
}

.pub-item{
  padding: 14px 0;
  border-top: 1px solid var(--border);
}

.pub-item:first-child{
  border-top: none;
}

.pub-main{
  display:flex;
  gap: 14px;
}

.pub-year{
  width: 62px;
  flex: 0 0 62px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 520px){
  .pub-year{ width: 54px; flex-basis: 54px; }
}

.pub-title{
  margin: 0 0 6px;
}

.pub-authors{
  color: var(--muted);
  font-size: 14px;
}

.pub-venue{
  color: var(--muted);
  font-size: 13px;
  margin-top: 4px;
}

.pub-note{
  margin-top: 6px;
  font-size: 13px;
  color: var(--text);
}

.badge{
  display:inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
  font-size: 12px;
  color: var(--text);
}

.pub-links{
  margin-top: 10px;
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip{
  display:inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-size: 12px;
}

.chip:hover{
  text-decoration:none;
  background: rgba(255,255,255,.03);
}

.note{
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

code{
  background: rgba(255,255,255,.04);
  padding: 2px 6px;
  border-radius: 8px;
}

.cv-frame{
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow:hidden;
  background: rgba(255,255,255,.02);
}

.cv-frame iframe{
  width: 100%;
  height: 80vh;
  border: 0;
}

.footer{
  padding: 22px 0 42px;
  color: var(--muted);
  text-align:center;
}