:root {
  --bg-0: #060a16;
  --bg-1: #0c1328;
  --panel: #111a31cc;
  --panel-border: #2a3b62;
  --text: #d9e5ff;
  --muted: #9fb3d9;
  --up: #24c8a5;
  --line: #2ec2ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 85% 10%, #162a53 0%, transparent 40%),
    radial-gradient(circle at 12% 88%, #11244b 0%, transparent 34%),
    linear-gradient(160deg, var(--bg-0), var(--bg-1));
  font-family: "Segoe UI", "Hiragino Kaku Gothic ProN", sans-serif;
  line-height: 1.65;
  min-height: 100dvh;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgb(46 194 255 / 6%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(46 194 255 / 6%) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  z-index: -1;
}

.hero {
  padding: 52px 20px 26px;
}

.hero__inner {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--line);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
}

h1 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.2;
}

.lead {
  color: var(--muted);
  margin-top: 14px;
  max-width: 56ch;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.stats span {
  background: #0b1a36;
  border: 1px solid #2b4f8a;
  color: var(--up);
  padding: 6px 10px;
  font-size: 0.82rem;
  border-radius: 999px;
}

.hero__photo {
  width: auto;
  max-width: 100%;
  max-height: 440px;
  object-fit: contain;
  border-radius: 14px;
  border: 1px solid #335994;
  box-shadow: 0 0 0 1px rgb(46 194 255 / 22%), 0 18px 46px rgb(1 5 14 / 48%);
  background: #081227;
  padding: 2px;
  display: block;
  margin-inline: auto;
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 8px 20px 64px;
  display: grid;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 18px;
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 4%);
}

h2 {
  margin-top: 0;
  margin-bottom: 10px;
  color: #edf4ff;
  font-size: 1.25rem;
}

p,
ul {
  margin: 0;
}

ul {
  padding-left: 18px;
}

.muted {
  margin-top: 10px;
  color: var(--muted);
}

.panel__gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-start;
}

.panel__gallery--under-text {
  margin-top: 12px;
}

.panel__img,
.panel__img--inline,
.panel__img--inline-small {
  width: auto;
  max-width: 100%;
  height: 208px;
  object-fit: contain;
  object-position: center;
  border-radius: 10px;
  border: 1px solid #32568f;
  background: #0a1328;
  padding: 2px;
  display: block;
  flex: 0 0 auto;
}

.panel__img--inline,
.panel__img--inline-small {
  margin-top: 8px;
}

footer {
  text-align: center;
  color: #8fa5cc;
  padding: 14px 12px 34px;
}

@media (max-width: 980px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .panel__img,
  .panel__img--inline,
  .panel__img--inline-small {
    height: 182px;
  }

  .hero__photo {
    max-height: 260px;
  }
}

.highlight-achievement {
  color: #ffd84a;
  font-weight: 700;
  text-shadow: 0 0 10px rgb(255 216 74 / 35%);
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.link-row a {
  color: #9fe4ff;
  text-decoration: none;
  border: 1px solid #2f6da0;
  padding: 6px 10px;
  border-radius: 999px;
  background: #0b1a36;
}

.link-row a:hover {
  border-color: #59b8f3;
}

.tab-switch {
  display: flex;
  gap: 10px;
}

.tab-btn {
  border: 1px solid #32568f;
  background: #0a1328;
  color: var(--text);
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}

.tab-btn.is-active {
  background: #113766;
  border-color: #59b8f3;
  color: #ffffff;
}

.tab-content {
  display: none;
  gap: 16px;
}

.tab-content.is-active {
  display: grid;
}

@media (max-width: 980px) {
  .tab-switch {
    flex-direction: column;
  }
}



.panel__img--keyaki {
  height: 312px;
}

@media (max-width: 980px) {
  .panel__img--keyaki {
    height: 273px;
  }
}


.highlight-teaching {
  color: #67f7b8;
  font-weight: 700;
  text-shadow: 0 0 10px rgb(103 247 184 / 30%);
}