:root {
  --white: #f7f7f2;
  --black: #0b0c10;
  --ink: #15171d;
  --muted: #747985;
  --yellow: #ffd21e;
  --yellow-soft: #ffe777;
  --blue: #2f80ff;
  --line: rgba(11, 12, 16, 0.12);
  --shadow: 0 24px 60px rgba(11, 12, 16, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  display: flex;
  flex-direction: column;
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(255, 210, 30, 0.22), transparent 34%),
    linear-gradient(225deg, rgba(47, 128, 255, 0.12), transparent 30%),
    var(--white);
  font-family: "Noto Sans JP", "Inter", system-ui, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  padding: 16px clamp(18px, 4vw, 56px);
  background: rgba(247, 247, 242, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 190px;
}

.team-icon {
  width: 50px;
  height: 50px;
  border: 0;
  object-fit: contain;
}

.brand-text {
  display: grid;
  line-height: 1;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-weight: 900;
  letter-spacing: 0;
}

.brand-text small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 10px 13px;
  border: 1px solid transparent;
  border-radius: 6px;
  color: #2b2f3a;
  font-size: 14px;
  font-weight: 700;
  transition: 180ms ease;
}

.nav-link:hover,
.nav-link.active {
  background: var(--black);
  color: var(--white);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
}

.menu-button span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--black);
}

main {
  flex: 1;
  display: flex;
  align-items: stretch;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 44px 0 56px;
}

.tab-panel {
  display: none;
  width: 100%;
  min-height: 100%;
  animation: fadeIn 220ms ease;
}

.tab-panel.active {
  display: block;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
  min-height: 500px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-family: "Inter", sans-serif;
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  color: var(--black);
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: clamp(54px, 10vw, 116px);
  line-height: 0.88;
  letter-spacing: 0;
}

.lead {
  max-width: 640px;
  color: #333844;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.primary-button,
.contact-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 2px solid var(--black);
  border-radius: 6px;
  font-weight: 900;
  cursor: pointer;
}

.primary-button,
.contact-form button {
  background: var(--yellow);
  color: var(--black);
  box-shadow: 6px 6px 0 var(--black);
}

.hero-mark {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  width: min(420px, 100%);
  min-height: auto;
  justify-self: center;
  background: transparent;
  border: 0;
  box-shadow: none;
  overflow: visible;
}

.hero-mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

.stats-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 28px;
  border: 2px solid var(--black);
  background: var(--black);
}

.stats-band div {
  padding: 22px;
  color: var(--white);
  border-right: 1px solid rgba(255, 255, 255, 0.18);
}

.stats-band div:last-child {
  border-right: 0;
}

.stats-band strong,
.stats-band span {
  display: block;
}

.stats-band strong {
  margin-bottom: 6px;
  color: var(--yellow);
  font-family: "Inter", sans-serif;
  font-size: 20px;
}

.stats-band span {
  color: rgba(247, 247, 242, 0.74);
  font-size: 13px;
}

.page-heading {
  margin-bottom: 34px;
  padding-top: 20px;
}

h2 {
  margin-bottom: 0;
  color: var(--black);
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  color: var(--black);
  font-size: 24px;
}

.two-column,
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: 36px;
  align-items: start;
}

.two-column p,
.contact-layout p,
.principles p {
  color: #3b414e;
  line-height: 1.9;
}

.highlight-panel {
  padding: 28px;
  border: 2px solid var(--black);
  background: var(--yellow);
  box-shadow: 8px 8px 0 var(--black);
}

.panel-label {
  display: inline-block;
  margin-bottom: 16px;
  padding: 5px 9px;
  background: var(--black);
  color: var(--white);
  font-family: "Inter", sans-serif;
  font-size: 12px;
  font-weight: 900;
}

.highlight-panel ul {
  margin: 0;
  padding-left: 20px;
  font-weight: 700;
  line-height: 2;
}

.principles,
.member-grid,
.sns-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.principles article,
.member-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}

.principles article {
  border-top: 5px solid var(--yellow);
}

.principles span {
  color: var(--blue);
  font-family: "Inter", sans-serif;
  font-weight: 900;
}

.member-grid {
  grid-template-columns: repeat(4, 1fr);
}

.member-card {
  min-height: 260px;
}

.avatar {
  display: grid;
  place-items: center;
  width: 76px;
  height: 76px;
  margin-bottom: 22px;
  border: 3px solid var(--black);
  background: var(--black);
  color: var(--yellow);
  font-family: "Inter", sans-serif;
  font-size: 28px;
  font-weight: 900;
}

.avatar-image {
  display: block;
  object-fit: cover;
  border-radius: 50%;
  padding: 0;
}

.member-card p {
  margin-bottom: 8px;
  color: var(--blue);
  font-family: "Inter", sans-serif;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.member-card h3 {
  margin-bottom: 8px;
}

.member-card span {
  color: var(--muted);
  font-size: 14px;
}

.sns-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  justify-content: center;
  max-width: 820px;
  margin: 0 auto;
}

.sns-card {
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 0;
  padding: 20px 26px 22px;
  border: 2px solid var(--black);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 8px 8px 0 var(--yellow);
  transition: 180ms ease;
}

.sns-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 var(--yellow);
}

.sns-card span {
  width: fit-content;
  margin-bottom: 4px;
  padding: 6px 10px;
  background: var(--black);
  color: var(--yellow);
  font-family: "Inter", sans-serif;
  font-size: 13px;
  font-weight: 900;
}

.sns-card strong {
  color: var(--black);
  font-size: 24px;
}

.sns-card small {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.sns-follow {
  width: 100%;
  margin: 34px auto 0;
  color: var(--black);
  font-size: clamp(22px, 4vw, 38px);
  font-weight: 900;
  text-align: center;
}

.contact-note {
  display: inline-block;
  margin-top: 18px;
  padding: 12px 14px;
  background: var(--black);
  color: var(--yellow);
  font-family: "Inter", sans-serif;
  font-weight: 800;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 2px solid var(--black);
  background: var(--white);
  box-shadow: 8px 8px 0 var(--yellow);
}

.contact-form label {
  display: grid;
  gap: 8px;
  font-size: 14px;
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 13px 14px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--blue);
  outline: 3px solid rgba(47, 128, 255, 0.16);
}

.contact-form button {
  width: fit-content;
  font: inherit;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--blue);
  font-weight: 800;
}

.site-footer {
  display: grid;
  place-items: center;
  padding: 28px clamp(18px, 4vw, 56px);
  background: var(--black);
  color: var(--white);
  text-align: center;
}

.site-footer strong {
  color: var(--yellow);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 860px) {
  .site-header {
    min-height: 74px;
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .nav-link {
    padding: 13px;
  }

  .hero,
  .two-column,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-mark {
    min-height: 250px;
  }

  .stats-band,
  .principles,
  .member-grid,
  .sns-grid {
    grid-template-columns: 1fr;
  }

  .stats-band div {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  }

  .stats-band div:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 560px) {
  main {
    width: min(100% - 24px, 1120px);
    padding-top: 30px;
  }

  .brand {
    min-width: 0;
  }

  .team-icon {
    width: 44px;
    height: 44px;
  }

  .brand-text small {
    font-size: 11px;
  }

  .hero-actions,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .primary-button,
  .contact-form button {
    width: 100%;
  }
}