:root {
  --bg: #0d1020;
  --bg-soft: #161a2c;
  --panel: rgba(20, 24, 41, 0.82);
  --panel-strong: rgba(30, 35, 58, 0.92);
  --line: rgba(255, 255, 255, 0.1);
  --text: #f4f3ef;
  --muted: #b8bbca;
  --accent: #ff7a59;
  --accent-2: #6de2d6;
  --glow: rgba(255, 122, 89, 0.24);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans JP", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, rgba(109, 226, 214, 0.14), transparent 24%),
    radial-gradient(circle at 80% 20%, rgba(255, 122, 89, 0.16), transparent 30%),
    linear-gradient(180deg, #0b0d18 0%, #101326 52%, #0d1020 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 85%);
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 16px;
  font: inherit;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 18px 28px;
  backdrop-filter: blur(16px);
  background: rgba(10, 12, 22, 0.62);
  border-bottom: 1px solid var(--line);
}

.logo,
.site-nav a,
.button,
.feature-card a,
.media-card a {
  text-decoration: none;
}

.logo,
h1,
h2,
h3 {
  font-family: "Syne", sans-serif;
}

.logo {
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--muted);
  font-weight: 700;
}

.site-nav a.is-active {
  color: var(--text);
}

.site-nav a:hover,
.feature-card a:hover,
.media-card a:hover {
  color: var(--accent-2);
}

main {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 72px;
}

.contact-page {
  width: min(760px, calc(100% - 40px));
}

.contact-form-section {
  padding: 48px 0 72px;
}

.contact-title {
  margin: 0;
}

.contact-lead {
  color: var(--muted);
  line-height: 1.8;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.contact-form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.contact-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero,
.feature-grid,
.video-showcase,
.split-grid,
.art-grid,
.activity-grid,
.writing-grid {
  display: grid;
  gap: 20px;
}

.notice-section {
  padding: 10px 0 30px;
}

.notice-board {
  display: grid;
  gap: 12px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.notice-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.notice-item:last-child {
  border-bottom: 0;
}

.notice-date {
  margin: 0;
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.notice-body h3 {
  margin: 0 0 6px;
}

.notice-body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.hero {
  grid-template-columns: 1.35fr 0.85fr;
  align-items: stretch;
  padding: 36px 0 28px;
}

.hero-copy,
.status-card,
.feature-card,
.media-card,
.art-card,
.info-card,
.contact-panel {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 42px;
}

.hero-copy::after,
.status-card::after,
.feature-card::after {
  content: "";
  position: absolute;
  inset: auto -30% -30% auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow), transparent 62%);
}

.kicker {
  margin: 0 0 12px;
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.6rem, 6vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: 0.02em;
}

.hero-text,
.feature-card p,
.media-card p,
.art-card p,
.info-card p,
.contact-panel p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-text {
  margin-top: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero-text-ja {
  margin-top: 6px;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: none;
}

.hero-subtitle {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  letter-spacing: 0.22em;
}

.hero-actions,
.contact-links,
.link-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.inline-links a {
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 700;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

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

.button-primary {
  color: #11141f;
  background: linear-gradient(135deg, var(--accent), #ffb36c);
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.hero-aside {
  display: grid;
  gap: 20px;
}

.status-card {
  padding: 24px;
}

.status-card.accent {
  background: linear-gradient(180deg, rgba(109, 226, 214, 0.12), rgba(20, 24, 41, 0.9));
}

.status-list {
  margin: 0;
  padding-left: 20px;
  line-height: 1.9;
  color: var(--text);
}

.link-grid a {
  color: var(--text);
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.content-section,
.featured {
  padding: 30px 0;
}

.section-heading {
  margin-bottom: 18px;
}

.section-heading h2,
.feature-card h3,
.media-card h3,
.art-card h3,
.info-card h3 {
  margin: 0;
}

.section-heading h2 {
  font-size: clamp(1.8rem, 3.2vw, 3rem);
}

.feature-grid {
  grid-template-columns: 1.3fr 1fr 1fr;
}

.feature-card,
.media-card,
.art-card,
.info-card,
.contact-panel {
  padding: 24px;
}

.feature-card.large {
  min-height: 260px;
}

.tag,
.media-type {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.feature-card a,
.media-card a {
  color: var(--accent);
  font-weight: 700;
  display: inline-flex;
  margin-top: 8px;
  margin-right: 12px;
}

.media-card-subtle {
  background: rgba(255, 255, 255, 0.04);
}

.media-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.activity-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.writing-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid {
  display: grid;
  gap: 18px;
}

.video-showcase {
  grid-template-columns: 1.25fr 0.85fr;
  align-items: start;
}

.video-frame {
  overflow: hidden;
  min-height: 420px;
  border-radius: 30px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.video-poster {
  position: relative;
  display: block;
  width: 100%;
  min-height: 420px;
  text-decoration: none;
}

.video-poster img {
  width: 100%;
  min-height: 420px;
  object-fit: cover;
  display: block;
}

.video-play {
  position: absolute;
  left: 28px;
  bottom: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  background: rgba(10, 12, 22, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stacked {
  grid-template-columns: 1fr;
}

.art-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.art-visual {
  min-height: 220px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.art-visual-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  display: block;
  border-radius: 20px;
  margin-bottom: 16px;
  background: #f4f3ef;
}

.tone-1 .art-visual {
  background: linear-gradient(135deg, #17203a, #4ea5d9 52%, #dff8ff);
}

.tone-2 .art-visual {
  background: linear-gradient(135deg, #3c1639, #ff7a59 48%, #ffd166);
}

.tone-3 .art-visual {
  background: linear-gradient(135deg, #14281d, #36c9a1 48%, #d4f4dd);
}

.split-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.profile-image {
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  object-position: center;
  display: block;
  border-radius: 20px;
  margin-bottom: 18px;
  background: rgba(255, 255, 255, 0.04);
  padding: 12px;
}

.info-card ul {
  margin: 0;
  padding-left: 18px;
  line-height: 1.9;
  color: var(--muted);
}

@media (max-width: 1024px) {
  .hero,
  .feature-grid,
  .media-grid,
  .activity-grid,
  .writing-grid,
  .video-showcase,
  .split-grid {
    grid-template-columns: 1fr;
  }

  .art-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .notice-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 720px) {
  .site-header {
    padding: 16px 18px;
  }

  .site-nav {
    gap: 12px;
  }

  main {
    width: min(100% - 24px, 1200px);
    padding-top: 18px;
  }

  .hero-copy,
  .status-card,
  .feature-card,
  .media-card,
  .art-card,
  .info-card,
  .contact-panel {
    padding: 18px;
    border-radius: 22px;
  }

  h1 {
    font-size: 2.8rem;
  }

  .video-frame,
  .video-poster,
  .video-poster img {
    min-height: 260px;
  }

  .art-grid {
    grid-template-columns: 1fr;
  }
}