/* ==============================
   リセット & ベース
   ============================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: #333;
  background: #fff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

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

/* ==============================
   ユーティリティ
   ============================== */
.section-wrap {
  padding: 80px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #e94f8c;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.section-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 32px;
  font-weight: 700;
  color: #222;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 16px;
  display: table;
}

.section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #e94f8c, #8b5cf6);
  border-radius: 2px;
}

/* ==============================
   ボタン
   ============================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #e94f8c, #c0379a);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(233, 79, 140, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(233, 79, 140, 0.45);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: #fff;
}

.btn-outline:hover {
  background: rgba(255,255,255,0.15);
}

.btn-secondary {
  background: #fff;
  color: #e94f8c;
  border-color: #e94f8c;
}

.btn-secondary:hover {
  background: #e94f8c;
  color: #fff;
}

.btn-large {
  padding: 16px 48px;
  font-size: 16px;
}

/* ==============================
   ヘッダー
   ============================== */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  transition: box-shadow 0.3s;
}

#header.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
}

.logo a {
  font-family: 'Noto Serif JP', serif;
  font-size: 22px;
  font-weight: 700;
  color: #222;
  letter-spacing: 0.1em;
  transition: color 0.2s;
}

.logo a:hover {
  color: #e94f8c;
}

.global-nav ul {
  display: flex;
  gap: 4px;
}

.global-nav ul li a {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #555;
  padding: 6px 10px;
  border-radius: 4px;
  transition: all 0.2s;
}

.global-nav ul li a:hover {
  color: #e94f8c;
  background: rgba(233, 79, 140, 0.07);
}

/* ハンバーガー */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: #333;
  border-radius: 2px;
  transition: all 0.3s;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* モバイルナビ */
.mobile-nav {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: #fff;
  z-index: 999;
  border-bottom: 1px solid #eee;
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s;
}

.mobile-nav.open {
  display: block;
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav ul {
  padding: 16px 0;
}

.mobile-nav ul li a {
  display: block;
  padding: 14px 24px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #333;
  border-bottom: 1px solid #f5f5f5;
  transition: color 0.2s;
}

.mobile-nav ul li a:hover {
  color: #e94f8c;
}

/* ==============================
   ヒーローセクション
   ============================== */
.hero {
  margin-top: 64px;
  position: relative;
  width: 100%;
  aspect-ratio: 2565 / 2125;
  max-height: calc(100vh - 64px);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center top;
  transition: opacity 1.2s ease;
}

.hero-bg-1 { background-image: url('../hoshiyokotop.jpg'); }
.hero-bg-2 { background-image: url('../hosiyoukotop2.jpg'); opacity: 0; }

.hero-mobile-imgs { display: none; }

/* 下部グラデーションオーバーレイ（テキスト可読性確保） */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 40%,
    rgba(10, 10, 40, 0.55) 100%
  );
  pointer-events: none;
}

.hero-content {
  position: absolute;
  bottom: 8%;
  right: 5%;
  z-index: 1;
  max-width: 38%;
  text-align: right;
}

.hero-logo {
  display: block;
  max-width: 640px;
  width: 100%;
  margin: 0 auto 16px;
}

.new-single-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 5px 18px;
  border-radius: 6px;
  border: 1.5px solid rgba(255,255,255,0.7);
  margin-bottom: 16px;
  backdrop-filter: blur(4px);
}

.hero-song-img {
  width: clamp(220px, 30vw, 360px);
  height: auto;
  margin-bottom: 12px;
  margin-left: auto;
  mix-blend-mode: screen;
}

.hero-catch {
  font-size: 15px;
  color: rgba(255,255,255,0.88);
  margin-bottom: 32px;
  font-style: italic;
  text-shadow: 0 1px 6px rgba(0,0,0,0.5);
}

.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.hero-btns .btn-outline {
  color: #fff;
  border-color: rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(4px);
}

.hero-btns .btn-outline:hover {
  background: rgba(255,255,255,0.25);
  border-color: #fff;
}

/* ==============================
   最新シングル
   ============================== */
.new-release {
  background: #fff;
}

.release-card {
  display: flex;
  gap: 48px;
  align-items: flex-start;
  background: #fafafa;
  border: 1px solid #f0f0f0;
  border-radius: 12px;
  padding: 40px;
}

.release-jacket {
  flex: 0 0 200px;
}

.release-jacket img {
  width: 200px;
  height: 200px;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  display: block;
  background: #fff;
}

.jacket-placeholder {
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, #6b8dd6 0%, #8c6dae 60%, #c0379a 100%);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px rgba(100, 60, 160, 0.3);
  color: #fff;
  text-align: center;
  padding: 16px;
}

.jacket-artist {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  opacity: 0.9;
}

.jacket-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
}

.release-info {
  flex: 1;
}

.release-video {
  margin-top: 32px;
  text-align: center;
}

.release-video iframe {
  width: 100%;
  max-width: 560px;
  aspect-ratio: 16 / 9;
  height: auto;
  border-radius: 8px;
}

.release-label {
  font-size: 13px;
  color: #e94f8c;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.release-song-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 30px;
  font-weight: 700;
  color: #222;
  margin-bottom: 8px;
}

.release-date {
  font-size: 14px;
  color: #888;
  font-weight: 500;
  margin-bottom: 16px;
}

.release-desc {
  font-size: 14px;
  color: #555;
  line-height: 1.8;
  margin-bottom: 28px;
}

/* ==============================
   お知らせ・スケジュール
   ============================== */
.information {
  background: #f8f8fb;
}

.information .section-wrap,
.information {
  background: #f8f8fb;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 48px;
  align-items: start;
}

.fb-timeline-wrap {
  margin-top: 40px;
  display: flex;
  justify-content: center;
}

.fb-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #1877f2;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.2s;
}

.fb-link-btn:hover {
  background: #1558b0;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table tr {
  border-bottom: 1px solid #eee;
}

.info-table tr:first-child {
  border-top: 1px solid #eee;
}

.info-table td {
  padding: 16px 12px;
  font-size: 14px;
  vertical-align: top;
}

.info-date {
  white-space: nowrap;
  color: #888;
  font-size: 13px;
  width: 90px;
  padding-right: 8px;
}

.info-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 3px;
  white-space: nowrap;
  letter-spacing: 0.05em;
}

.tag-campaign { background: #fef3f8; color: #e94f8c; border: 1px solid #fad0e6; }
.tag-appear   { background: #f0f4ff; color: #5b8fd9; border: 1px solid #c5d8f5; }
.tag-news     { background: #f5fff8; color: #2dab60; border: 1px solid #b8f0cd; }

.sub-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #e94f8c;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #e94f8c;
}

.schedule-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.schedule-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px;
  background: #fff;
  border-radius: 8px;
  border-left: 3px solid #e94f8c;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.sch-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 48px;
}

.sch-month {
  font-size: 11px;
  font-weight: 700;
  color: #e94f8c;
  letter-spacing: 0.05em;
}

.sch-day {
  font-size: 26px;
  font-weight: 700;
  color: #222;
  line-height: 1;
}

.sch-title {
  font-size: 14px;
  font-weight: 700;
  color: #222;
  margin-bottom: 4px;
}

.sch-place {
  font-size: 12px;
  color: #888;
}

/* ==============================
   プロフィール
   ============================== */
.profile-section {
  background: #fff;
}

.profile-inner {
  display: flex;
  gap: 60px;
  align-items: flex-start;
}

.profile-photo {
  flex: 0 0 280px;
  position: relative;
}

.profile-photo img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

.profile-text {
  flex: 1;
}

.profile-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 36px;
  font-weight: 700;
  color: #222;
  margin-bottom: 4px;
}

.profile-name-ruby {
  font-size: 16px;
  font-weight: 400;
  color: #888;
  margin-left: 12px;
}

.profile-dl {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 8px 16px;
  margin: 24px 0;
  padding: 24px;
  background: #f8f8fb;
  border-radius: 8px;
}

.profile-dl dt {
  font-size: 13px;
  font-weight: 700;
  color: #e94f8c;
}

.profile-dl dd {
  font-size: 14px;
  color: #444;
}

.profile-bio {
  font-size: 15px;
  color: #555;
  line-height: 2;
  margin-bottom: 32px;
}

/* ==============================
   ムービー
   ============================== */
.movie-section {
  background: #f8f8fb;
}

.movie-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.movie-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.07);
  transition: transform 0.25s, box-shadow 0.25s;
  cursor: pointer;
}

.movie-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}

.movie-thumb {
  aspect-ratio: 16/9;
  background: #e8e8ee;
  overflow: hidden;
  position: relative;
}

.movie-thumb iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.movie-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #e8eaf6, #d8daf0);
}

.movie-placeholder svg {
  width: 60px;
  height: 60px;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.movie-card:hover .movie-placeholder svg {
  opacity: 0.9;
}

.movie-label {
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 500;
  color: #333;
  line-height: 1.5;
}

/* ==============================
   お問い合わせ
   ============================== */
.contact-section {
  background: #fff;
}

.contact-inner {
  max-width: 680px;
}

.contact-lead {
  font-size: 15px;
  color: #666;
  margin-bottom: 40px;
  line-height: 1.8;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: #333;
  margin-bottom: 8px;
}

.required {
  display: inline-block;
  background: #e94f8c;
  color: #fff;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 8px;
  font-weight: 700;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  font-family: 'Noto Sans JP', sans-serif;
  border: 1.5px solid #ddd;
  border-radius: 6px;
  color: #333;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: #e94f8c;
  box-shadow: 0 0 0 3px rgba(233, 79, 140, 0.12);
}

.form-submit {
  text-align: center;
  margin-top: 36px;
}

.form-success {
  background: #f0fef5;
  border: 1.5px solid #4ade80;
  border-radius: 8px;
  padding: 32px;
  text-align: center;
  color: #15803d;
  font-size: 15px;
  font-weight: 500;
}

/* ==============================
   フッター
   ============================== */
.site-footer {
  background: #1a1a2e;
  color: #aaa;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 24px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.footer-logo {
  font-family: 'Noto Serif JP', serif;
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.12em;
}

.footer-nav ul {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-nav ul li a {
  font-size: 12px;
  font-weight: 700;
  color: #aaa;
  padding: 6px 10px;
  letter-spacing: 0.08em;
  transition: color 0.2s;
}

.footer-nav ul li a:hover {
  color: #e94f8c;
}

.footer-copy {
  font-size: 12px;
  color: #666;
  text-align: center;
  letter-spacing: 0.05em;
}

/* ==============================
   セクション背景（交互）
   ============================== */
.new-release,
.profile-section,
.contact-section {
  background: #fff;
}

.information,
.movie-section {
  background: #f8f8fb;
}

/* ==============================
   レスポンシブ
   ============================== */
@media (max-width: 900px) {
  .global-nav { display: none; }
  .hamburger { display: flex; }

  .hero {
    aspect-ratio: auto;
    max-height: none;
    background-image: none;
    display: flex;
    flex-direction: column;
  }

  .hero::after { display: none; }

  .hero-mobile-imgs {
    display: block;
    position: relative;
    width: 100%;
    line-height: 0;
  }

  .hero-mobile-img {
    width: 100%;
    height: auto;
    display: block;
    transition: opacity 1.2s ease;
  }

  .hero-mobile-img-2 {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1.2s ease;
  }

  .hero-content {
    position: static;
    max-width: 100%;
    text-align: center;
    padding: 32px 32px 44px;
    background: #1a1a2e;
  }

  .hero-song-img {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-btns {
    justify-content: center;
  }

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

  .profile-inner {
    flex-direction: column;
    gap: 32px;
  }

  .profile-photo {
    flex: 0 0 auto;
    width: 220px;
    margin: 0 auto;
  }

  .profile-text {
    text-align: center;
  }

  .profile-dl {
    text-align: left;
  }

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

  .release-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 28px;
    gap: 28px;
  }
}

@media (max-width: 600px) {
  .section-title { font-size: 26px; }

  .hero-content {
    padding: 24px 20px 36px;
  }

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

  .info-table td {
    display: block;
    padding: 6px 8px;
  }

  .info-table td.info-date {
    padding-bottom: 2px;
    color: #aaa;
  }

  .info-table tr {
    padding: 12px 0;
    display: block;
  }
}