:root {
  --bg: #f5fbfb;
  --bg-soft: #ffffff;
  --surface: rgba(255, 255, 255, 0.74);
  --surface-strong: rgba(255, 255, 255, 0.9);
  --line: rgba(74, 122, 128, 0.14);
  --text: #17333a;
  --muted: #56757c;
  --accent: #2f9d90;
  --accent-strong: #237c72;
  --shadow: 0 20px 50px rgba(30, 73, 84, 0.12);
  --radius-lg: 28px;
  --radius-sm: 999px;
  --container: min(1120px, calc(100% - 32px));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", "Hiragino Sans", "Yu Gothic", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(151, 231, 220, 0.5), transparent 35%),
    radial-gradient(circle at top right, rgba(156, 211, 255, 0.35), transparent 32%),
    linear-gradient(180deg, #f3fcfb 0%, #edf7fb 45%, #f8fbfd 100%);
  line-height: 1.7;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-shell {
  position: relative;
  overflow: hidden;
}

.site-shell::before,
.site-shell::after {
  content: "";
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  filter: blur(24px);
  opacity: 0.6;
}

.site-shell::before {
  width: 280px;
  height: 280px;
  top: 120px;
  right: -80px;
  background: rgba(120, 214, 201, 0.22);
}

.site-shell::after {
  width: 220px;
  height: 220px;
  left: -60px;
  bottom: 100px;
  background: rgba(150, 204, 255, 0.22);
}

.site-header,
.section,
.site-footer {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0 12px;
  backdrop-filter: blur(18px);
}

.brand-kicker,
.eyebrow,
.member-role,
.hero-label,
.work-tag {
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.brand {
  display: grid;
  gap: 2px;
}

.brand-kicker {
  font-size: 0.68rem;
  color: var(--muted);
}

.brand-title {
  font-family: "Noto Serif JP", serif;
  font-size: 1.32rem;
  font-weight: 700;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-current {
  color: var(--text);
  background: rgba(255, 255, 255, 0.8);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.75);
  box-shadow: var(--shadow);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 6px auto;
  background: var(--text);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.section {
  padding: 64px 0;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: center;
  min-height: calc(100vh - 92px);
  padding-top: 36px;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.76rem;
  color: var(--accent-strong);
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
}

h1,
h2,
.lead-statement {
  font-family: "Noto Serif JP", serif;
}

h1 {
  font-size: clamp(2.7rem, 6vw, 4.9rem);
  max-width: 11ch;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 16px;
}

.hero-text,
.section-heading p,
.member-body p,
.work-card p,
.join-panel p,
.site-footer p {
  color: var(--muted);
}

.hero-text {
  max-width: 52ch;
  margin: 24px 0 0;
  font-size: 1.05rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent) 0%, #4eb4aa 100%);
  box-shadow: 0 12px 28px rgba(47, 157, 144, 0.28);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.75);
  box-shadow: var(--shadow);
}

.hero-panel,
.member-grid,
.works-grid,
.sns-grid {
  display: grid;
  gap: 18px;
}

.hero-panel {
  align-content: center;
}

.hero-card,
.member-card,
.work-card,
.join-panel,
.sns-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-card {
  padding: 28px;
  transform: rotate(-2deg);
}

.hero-label,
.member-role,
.work-tag {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--accent-strong);
}

.hero-card strong {
  display: block;
  margin: 12px 0 10px;
  font-size: 1.4rem;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.lead-statement {
  max-width: 26ch;
  font-size: clamp(1.25rem, 2.3vw, 1.85rem);
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: var(--text);
}

.no-wrap {
  white-space: nowrap;
}

#about .section-heading {
  max-width: 920px;
  padding: 34px 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

#about .about-heading {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

#about .about-heading-logo {
  width: 70px;
  height: 70px;
  object-fit: contain;
  flex-shrink: 0;
}

#about .about-layout {
  display: block;
}

#about .lead-statement {
  max-width: 58ch;
  font-size: clamp(1.02rem, 1.45vw, 1.18rem);
  line-height: 2.1;
  letter-spacing: 0.01em;
}

#about .lead-statement-hero {
  max-width: 26ch;
  margin-bottom: 24px;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.7;
  letter-spacing: 0.02em;
}

#about .about-text {
  max-width: 58ch;
  margin: 0;
  color: var(--muted);
  line-height: 2.05;
}

.member-grid,
.works-grid,
.sns-grid,
.event-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.member-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  padding: 24px;
}

.member-avatar {
  display: grid;
  place-items: center;
  width: 76px;
  height: 76px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(47, 157, 144, 0.2), rgba(121, 190, 255, 0.24));
  font-family: "Noto Serif JP", serif;
  font-size: 1.8rem;
}

.work-card,
.sns-card {
  padding: 24px;
}

.work-card-link {
  display: block;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.work-card-link:hover,
.work-card-link:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(47, 157, 144, 0.32);
  box-shadow: 0 20px 42px rgba(30, 73, 84, 0.16);
}

.work-tag {
  margin-bottom: 16px;
}

.work-card h3,
.join-panel h3,
.sns-name {
  margin-bottom: 12px;
  font-size: 1.15rem;
}

.works-note {
  margin: 16px 4px 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.event-card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.event-date {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 0.95rem;
  font-weight: 600;
}

.event-card h3 {
  margin-bottom: 10px;
  font-size: 1.15rem;
}

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

.member-link {
  transition: color 0.25s ease;
}

.member-link:hover,
.member-link:focus-visible {
  color: var(--accent-strong);
}

.join-section {
  padding-bottom: 28px;
}

.join-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px;
}

.join-panel .button {
  flex-shrink: 0;
}

.sns-card {
  min-height: 164px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.sns-card-muted {
  opacity: 0.72;
}

.sns-handle {
  color: var(--accent-strong);
  font-weight: 600;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 32px 0 44px;
}

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

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  .hero,
  .member-grid,
  .works-grid,
  .sns-grid,
  .event-list {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 24px;
  }

  .join-panel {
    flex-direction: column;
    align-items: flex-start;
  }

  #about .section-heading {
    padding: 28px 24px;
  }

  #about .about-heading {
    gap: 10px;
  }

  #about .about-heading-logo {
    width: 56px;
    height: 56px;
  }
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    padding-top: 16px;
  }

  .menu-toggle {
    display: block;
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(8px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-6px) rotate(-45deg);
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: min(280px, 100%);
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: var(--surface-strong);
    box-shadow: var(--shadow);
    display: none;
    flex-direction: column;
    align-items: stretch;
  }

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

  .site-nav a {
    padding: 12px 14px;
  }

  h1,
  .lead-statement {
    max-width: none;
  }

  .section {
    padding: 52px 0;
  }

  .hero-card,
  .member-card,
  .work-card,
  .event-card,
  .join-panel,
  .sns-card {
    padding: 20px;
  }

  .member-card {
    grid-template-columns: 1fr;
  }

  .member-avatar {
    width: 64px;
    height: 64px;
  }

  .work-card h3 {
    font-size: 1.05rem;
    line-height: 1.45;
  }

  .works-note {
    font-size: 0.9rem;
  }

  .no-wrap {
    white-space: normal;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}