/* 基本設定 */
:root {
  --color-bg: #f5fbff;
  --color-surface: #ffffff;
  --color-surface-light: #eef8ff;
  --color-text: #13233a;
  --color-muted: #65758b;
  --color-border: #d9e9f4;
  --color-primary: #168bd2;
  --color-primary-light: #73d7ff;
  --color-success: #21a875;
  --color-live: #e34f8c;

  --container-width: 1160px;
  --border-radius: 20px;
  --shadow: 0 14px 40px rgba(31, 98, 143, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Yu Gothic", system-ui, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.container {
  width: min(calc(100% - 44px), var(--container-width));
  margin: 0 auto;
}

/* ヘッダー */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 251, 255, 0.92);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.logo {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.logo span {
  color: var(--color-primary);
}

.desktop-nav {
  display: flex;
  gap: 20px;
  margin-left: auto;
}

.desktop-nav a {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-muted);
}

.desktop-nav a:hover {
  color: var(--color-primary);
}

.menu-button {
  display: none;
  margin-left: auto;
  padding: 9px 14px;
  color: white;
  font-weight: 800;
  background: var(--color-primary);
  border: 0;
  border-radius: 999px;
  cursor: pointer;
}

.mobile-nav {
  display: none;
}

/* 共通パーツ */
.section {
  padding: 48px 0;
}

.section-small {
  padding-top: 16px;
}

.section-label {
  margin: 0;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

.section-heading h2 {
  margin: 5px 0 0;
  font-size: 32px;
  letter-spacing: -0.04em;
}

.section-heading > p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.card {
  padding: 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 17px;
  color: var(--color-text);
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(31, 98, 143, 0.12);
}

.button-primary {
  color: white;
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* プロフィール */
.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  padding-top: 76px;
  padding-bottom: 52px;
}

.hero h1 {
  margin: 14px 0 20px;
  font-size: clamp(44px, 7vw, 78px);
  line-height: 1;
  letter-spacing: -0.06em;
}

.hero-description {
  max-width: 650px;
  margin: 0 0 28px;
  color: var(--color-muted);
  font-size: 17px;
  line-height: 1.9;
}

.profile-card {
  position: relative;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
  overflow: hidden;
  color: white;
  background: linear-gradient(145deg, #087fc5, var(--color-primary-light));
  border-radius: 34px;
  box-shadow: var(--shadow);
}

.profile-decoration {
  position: absolute;
  top: -60px;
  right: -55px;
  width: 260px;
  height: 260px;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 50%;
}

.profile-avatar {
  width: 100px;
  height: 100px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  color: var(--color-text);
  font-size: 38px;
  font-weight: 900;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 30px;
}

.profile-card h2 {
  margin: 0 0 5px;
  font-size: 30px;
}

.profile-card > p {
  margin: 0;
}

.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 22px;
}

.profile-links strong,
.profile-links span {
  display: block;
}

.profile-links span {
  margin-top: 3px;
  font-size: 12px;
  opacity: 0.8;
}

/* 公式リンク */
.official-links-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px;
  background: linear-gradient(120deg, #e7f6ff, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.official-links-card h2 {
  margin: 7px 0;
  font-size: 24px;
}

.official-links-card p:last-child {
  margin: 0;
  color: var(--color-muted);
}

/* ニュース */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.tag {
  display: inline-block;
  padding: 6px 9px;
  color: var(--color-primary);
  font-size: 11px;
  font-weight: 900;
  background: #e7f6ff;
  border-radius: 999px;
}

.news-card h3 {
  margin: 14px 0 8px;
  font-size: 18px;
}

.news-card p {
  min-height: 70px;
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.7;
}

.news-card time {
  display: block;
  margin-top: 18px;
  color: var(--color-muted);
  font-size: 12px;
}

/* スケジュール */
.schedule-list {
  display: grid;
  gap: 10px;
}

.schedule-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 17px;
}

.schedule-date {
  text-align: center;
  border-right: 1px solid var(--color-border);
}

.schedule-date strong {
  display: block;
  font-size: 25px;
}

.schedule-date span {
  color: var(--color-muted);
  font-size: 10px;
}

.schedule-info h3 {
  margin: 0;
  font-size: 16px;
}

.schedule-info p {
  margin: 4px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.schedule-type {
  padding: 7px 10px;
  color: var(--color-live);
  font-size: 11px;
  font-weight: 900;
  background: #fff0f6;
  border-radius: 999px;
}

/* SNS */
.social-grid,
.future-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.social-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
}

.social-name span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--color-surface-light);
  border-radius: 10px;
}

.social-card h3 {
  margin: 18px 0 8px;
}

.social-card p {
  margin: 0 0 20px;
  color: var(--color-muted);
  line-height: 1.7;
}

/* =========================
   SHOP / FAN CLUB
========================= */
.future-card {
  padding: 30px;
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: 24px;
}

.coming-soon {
  color: var(--color-success);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.future-card h3 {
  margin: 8px 0;
  font-size: 24px;
}

.future-card p {
  margin: 0 0 20px;
  color: var(--color-muted);
  line-height: 1.7;
}

/* フッター */
.site-footer {
  padding: 60px 0 34px;
  color: var(--color-muted);
  font-size: 13px;
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.site-footer p {
  margin: 0;
}

/* スマホ表示 */
@media (max-width: 760px) {
  .desktop-nav {
    display: none;
  }

  .menu-button {
    display: block;
  }

  .mobile-nav.is-open {
    display: grid;
    gap: 1px;
    padding: 0 22px 16px;
  }

  .mobile-nav a {
    padding: 12px 0;
    color: var(--color-muted);
    font-size: 13px;
    font-weight: 800;
    border-bottom: 1px solid var(--color-border);
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 48px;
  }

  .hero h1 {
    font-size: 50px;
  }

  .profile-card {
    min-height: 300px;
  }

  .news-grid,
  .social-grid,
  .future-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 36px 0;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .official-links-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .schedule-item {
    grid-template-columns: 68px 1fr;
  }

  .schedule-type {
    display: none;
  }

  .site-footer .container {
    flex-direction: column;
  }
}