/* =========================================
   三原あみ 作曲家サイト 共通スタイル
   miharaami.github.io
   ========================================= */

:root {
  /* カラーパレット ─ 温かいクリームと深い藍 */
  --cream: #FAF6F0;
  --cream-warm: #F5EBDC;
  --cream-deep: #EBDDC5;
  --indigo: #1F3A5F;
  --indigo-deep: #142640;
  --indigo-light: #4A6B91;
  --sakura: #E8B4B8;
  --vermillion: #C84C3D;
  --gold: #C9A961;
  --ink: #2C2C2C;
  --ink-soft: #4A4A4A;
  --ink-mute: #888888;
  --line: #DDD3C2;
  --line-soft: #ECE4D4;

  /* タイポグラフィ */
  --serif-jp: "游明朝", "Yu Mincho", "YuMincho", "Hiragino Mincho Pro", serif;
  --sans-jp: "游ゴシック", "Yu Gothic", "YuGothic", "Hiragino Sans", sans-serif;
  --serif-en: "Cormorant Garamond", "Playfair Display", Georgia, serif;
  --sans-en: "Cormorant Garamond", Georgia, serif;

  /* サイズ */
  --max-width: 1180px;
  --max-width-narrow: 880px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--serif-jp);
  background: var(--cream);
  color: var(--ink);
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ========== グローバルナビゲーション ========== */
.global-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 246, 240, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 0.5px solid var(--line);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.nav-brand {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--indigo);
}

.nav-brand-name {
  font-family: var(--serif-jp);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.nav-brand-sub {
  font-family: var(--serif-en);
  font-size: 0.85rem;
  color: var(--ink-mute);
  letter-spacing: 0.15em;
  font-style: italic;
}

.nav-links {
  display: flex;
  gap: clamp(1rem, 3vw, 2.2rem);
  list-style: none;
}

.nav-links a {
  font-family: var(--sans-jp);
  font-size: 0.9rem;
  color: var(--ink-soft);
  text-decoration: none;
  position: relative;
  transition: color 0.3s;
  letter-spacing: 0.06em;
}

.nav-links a:hover { color: var(--indigo); }

.nav-links a.active { color: var(--indigo); font-weight: 500; }

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 1.5px;
  background: var(--indigo);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--cream);
    flex-direction: column;
    padding: 1rem var(--gutter);
    border-bottom: 0.5px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .nav-brand-sub { display: none; }
}

/* ========== ヒーロー（共通基盤） ========== */
.hero {
  padding: clamp(3rem, 9vw, 7rem) var(--gutter) clamp(2.5rem, 8vw, 6rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-eyebrow {
  font-family: var(--serif-en);
  font-size: 0.85rem;
  font-style: italic;
  color: var(--ink-mute);
  letter-spacing: 0.4em;
  margin-bottom: 1.2rem;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--serif-jp);
  font-size: clamp(1.9rem, 5vw, 3.3rem);
  font-weight: 500;
  line-height: 1.5;
  color: var(--indigo-deep);
  margin-bottom: 1.5rem;
  letter-spacing: 0.04em;
}

.hero-title em {
  font-style: normal;
  color: var(--vermillion);
  font-weight: 600;
}

.hero-subtitle {
  font-family: var(--serif-jp);
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: var(--ink-soft);
  max-width: 580px;
  margin: 0 auto 2rem;
  line-height: 2;
}

.hero-divider {
  width: 60px;
  height: 1px;
  background: var(--gold);
  margin: 0 auto 1.5rem;
}

/* ========== ボタン ========== */
.btn {
  display: inline-block;
  padding: 0.85rem 2.2rem;
  font-family: var(--sans-jp);
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: 2px;
  letter-spacing: 0.1em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.3s ease;
}

.btn-primary {
  background: var(--indigo);
  color: var(--cream);
  border-color: var(--indigo);
}

.btn-primary:hover {
  background: var(--indigo-deep);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px -8px rgba(31, 58, 95, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--indigo);
  border-color: var(--indigo);
}

.btn-secondary:hover {
  background: var(--indigo);
  color: var(--cream);
}

.btn-row {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== セクション ========== */
.section {
  padding: clamp(3rem, 8vw, 5.5rem) var(--gutter);
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-narrow .section-inner {
  max-width: var(--max-width-narrow);
}

.section-cream { background: var(--cream-warm); }
.section-deep { background: var(--indigo); color: var(--cream); }

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-eyebrow {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--ink-mute);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.section-deep .section-eyebrow {
  color: rgba(250, 246, 240, 0.6);
}

.section-title {
  font-family: var(--serif-jp);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 500;
  color: var(--indigo-deep);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.section-deep .section-title { color: var(--cream); }

.section-divider {
  width: 40px;
  height: 1px;
  background: var(--gold);
  margin: 0 auto;
}

/* ========== トラストバー（実績一行表示） ========== */
.trust-bar {
  background: var(--cream-deep);
  padding: 1.4rem var(--gutter);
  border-top: 0.5px solid var(--line);
  border-bottom: 0.5px solid var(--line);
}

.trust-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  text-align: center;
}

.trust-item-label {
  font-family: var(--serif-en);
  font-size: 0.7rem;
  font-style: italic;
  color: var(--ink-mute);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.trust-item-value {
  font-family: var(--serif-jp);
  font-size: 1rem;
  font-weight: 500;
  color: var(--indigo-deep);
}

.trust-item:not(:last-child) {
  border-right: 0.5px solid var(--line);
}

@media (max-width: 720px) {
  .trust-item:not(:last-child) {
    border-right: none;
    border-bottom: 0.5px solid var(--line);
    padding-bottom: 0.8rem;
    margin-bottom: 0.8rem;
  }
}

/* ========== 作品カード ========== */
.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.6rem;
}

.work-card {
  background: var(--cream);
  border: 0.5px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.work-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px -12px rgba(31, 58, 95, 0.18);
}

.work-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--indigo);
  overflow: hidden;
}

.work-thumb iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.work-info { padding: 1.2rem 1.4rem 1.5rem; }

.work-title {
  font-family: var(--serif-jp);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--indigo-deep);
  margin-bottom: 0.5rem;
  letter-spacing: 0.04em;
}

.work-meta {
  font-family: var(--sans-jp);
  font-size: 0.82rem;
  color: var(--ink-mute);
  line-height: 1.7;
}

.work-meta strong {
  color: var(--ink-soft);
  font-weight: 500;
}

.work-tag {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  background: var(--cream-deep);
  color: var(--ink-soft);
  font-family: var(--sans-jp);
  font-size: 0.72rem;
  border-radius: 2px;
  margin-right: 0.3rem;
}

/* ========== サービスカード ========== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.4rem;
}

.service-card {
  background: var(--cream);
  border: 0.5px solid var(--line);
  padding: 2.2rem 1.8rem;
  text-align: center;
  position: relative;
  transition: all 0.3s;
}

.service-card:hover {
  border-color: var(--indigo);
  transform: translateY(-2px);
}

.service-card.featured {
  border: 1.5px solid var(--vermillion);
}

.service-card.featured::before {
  content: "人気";
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--vermillion);
  color: var(--cream);
  padding: 0.25rem 1rem;
  font-family: var(--sans-jp);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  border-radius: 2px;
}

.service-num {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 2.2rem;
  color: var(--gold);
  margin-bottom: 0.6rem;
  letter-spacing: 0.05em;
}

.service-title {
  font-family: var(--serif-jp);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--indigo-deep);
  margin-bottom: 0.8rem;
}

.service-desc {
  font-family: var(--serif-jp);
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.9;
  margin-bottom: 1.2rem;
}

.service-price {
  font-family: var(--serif-en);
  font-size: 1rem;
  color: var(--vermillion);
  font-weight: 500;
}

/* ========== プロセス（ステップ） ========== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.5rem;
  position: relative;
}

.process-step {
  text-align: center;
  padding: 1rem 0.5rem;
}

.process-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--indigo);
  color: var(--cream);
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 1.1rem;
  margin-bottom: 0.9rem;
}

.process-title {
  font-family: var(--serif-jp);
  font-size: 1rem;
  font-weight: 500;
  color: var(--indigo-deep);
  margin-bottom: 0.4rem;
}

.process-desc {
  font-family: var(--sans-jp);
  font-size: 0.82rem;
  color: var(--ink-mute);
  line-height: 1.7;
}

/* ========== 特徴ボックス ========== */
.feature-box {
  background: var(--indigo);
  color: var(--cream);
  padding: clamp(2.5rem, 6vw, 4rem) var(--gutter);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.feature-box::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: 60%;
  height: 160%;
  background: radial-gradient(circle, rgba(201, 169, 97, 0.12), transparent 60%);
  pointer-events: none;
}

.feature-eyebrow {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 0.8rem;
  color: rgba(250, 246, 240, 0.6);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.feature-title {
  font-family: var(--serif-jp);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 500;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.feature-text {
  max-width: 540px;
  margin: 0 auto;
  font-family: var(--serif-jp);
  font-size: 0.95rem;
  line-height: 2;
  opacity: 0.9;
}

/* ========== CTA（コンタクト誘導） ========== */
.cta {
  text-align: center;
  padding: clamp(3rem, 7vw, 5rem) var(--gutter);
}

.cta-title {
  font-family: var(--serif-jp);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 500;
  color: var(--indigo-deep);
  margin-bottom: 0.8rem;
}

.cta-text {
  font-family: var(--serif-jp);
  color: var(--ink-soft);
  margin-bottom: 1.8rem;
}

/* ========== フッター ========== */
.global-footer {
  background: var(--indigo-deep);
  color: rgba(250, 246, 240, 0.7);
  padding: 3rem var(--gutter) 2rem;
  font-family: var(--sans-jp);
  font-size: 0.85rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 0.5px solid rgba(250, 246, 240, 0.15);
}

.footer-col h4 {
  font-family: var(--serif-jp);
  font-size: 1rem;
  color: var(--cream);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.footer-col ul {
  list-style: none;
  line-height: 2;
}

.footer-col a {
  color: rgba(250, 246, 240, 0.7);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-col a:hover { color: var(--gold); }

.footer-bottom {
  text-align: center;
  font-family: var(--serif-en);
  font-size: 0.78rem;
  font-style: italic;
  color: rgba(250, 246, 240, 0.5);
  letter-spacing: 0.15em;
}

/* ========== 紹介ページ専用 ========== */
.profile-intro {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 720px) {
  .profile-intro { grid-template-columns: 1fr; }
}

.profile-photo-placeholder {
  aspect-ratio: 3 / 4;
  background: linear-gradient(135deg, var(--cream-warm), var(--cream-deep));
  border: 0.5px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif-en);
  font-style: italic;
  color: var(--ink-mute);
}

.profile-text p {
  font-family: var(--serif-jp);
  font-size: 1rem;
  line-height: 2;
  margin-bottom: 1.2rem;
  color: var(--ink-soft);
}

.profile-quote {
  border-left: 2px solid var(--gold);
  padding: 0.5rem 0 0.5rem 1.5rem;
  margin: 2rem 0;
  font-family: var(--serif-jp);
  font-size: 1.1rem;
  line-height: 2;
  color: var(--indigo-deep);
  font-style: italic;
}

.timeline {
  margin-top: 2rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1.5rem;
  padding: 1.2rem 0;
  border-bottom: 0.5px dashed var(--line);
}

.timeline-year {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 1rem;
  color: var(--vermillion);
  letter-spacing: 0.1em;
}

.timeline-content {
  font-family: var(--serif-jp);
  color: var(--ink);
}

.timeline-title {
  font-weight: 500;
  color: var(--indigo-deep);
  margin-bottom: 0.3rem;
}

.timeline-meta {
  font-size: 0.85rem;
  color: var(--ink-mute);
}

.org-list, .keyword-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.org-card {
  padding: 1.5rem;
  background: var(--cream);
  border: 0.5px solid var(--line);
  text-align: center;
}

.org-name {
  font-family: var(--serif-jp);
  font-size: 1rem;
  color: var(--indigo-deep);
  font-weight: 500;
  margin-bottom: 0.4rem;
}

.org-meta {
  font-family: var(--serif-en);
  font-size: 0.78rem;
  color: var(--ink-mute);
  font-style: italic;
  letter-spacing: 0.1em;
}

.keyword-card {
  padding: 1.6rem 1rem;
  background: var(--cream);
  border: 0.5px solid var(--gold);
  text-align: center;
}

.keyword-num {
  font-family: var(--serif-en);
  font-style: italic;
  color: var(--gold);
  font-size: 1.4rem;
  margin-bottom: 0.4rem;
}

.keyword-text {
  font-family: var(--serif-jp);
  font-size: 1.05rem;
  color: var(--indigo-deep);
  font-weight: 500;
}

/* ========== 作品集ページ専用 ========== */
.filter-bar {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.5rem 1.2rem;
  background: var(--cream);
  border: 0.5px solid var(--line);
  font-family: var(--sans-jp);
  font-size: 0.85rem;
  color: var(--ink-soft);
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.3s;
}

.filter-btn:hover { border-color: var(--indigo); color: var(--indigo); }

.filter-btn.active {
  background: var(--indigo);
  color: var(--cream);
  border-color: var(--indigo);
}

/* ========== 子ども音楽ページ専用 ========== */
.kids-hero {
  background: linear-gradient(180deg, var(--cream) 0%, var(--cream-warm) 100%);
}

.kids-stat {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  text-align: center;
}

.kids-stat-num {
  font-family: var(--serif-en);
  font-size: 3rem;
  color: var(--vermillion);
  font-style: italic;
  font-weight: 500;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.kids-stat-label {
  font-family: var(--serif-jp);
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

.target-audience {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.4rem;
}

.audience-card {
  background: var(--cream);
  border: 0.5px solid var(--line);
  padding: 2rem 1.8rem;
}

.audience-icon {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 1.6rem;
  color: var(--gold);
  margin-bottom: 0.8rem;
}

.audience-title {
  font-family: var(--serif-jp);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--indigo-deep);
  margin-bottom: 0.6rem;
}

.audience-list {
  list-style: none;
  font-family: var(--serif-jp);
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 2;
}

.audience-list li::before {
  content: "—";
  color: var(--gold);
  margin-right: 0.5rem;
}

/* ========== 受注ページ専用 ========== */
.price-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem;
}

.price-card {
  background: var(--cream);
  border: 0.5px solid var(--line);
  padding: 2.2rem 1.6rem;
  text-align: center;
  transition: all 0.3s;
}

.price-card:hover {
  border-color: var(--indigo);
  transform: translateY(-2px);
}

.price-card.featured {
  background: var(--cream-warm);
  border: 1.5px solid var(--gold);
}

.price-grade-en {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--gold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.price-grade-jp {
  font-family: var(--serif-jp);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--indigo-deep);
  margin-bottom: 1rem;
}

.price-amount {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 1.6rem;
  color: var(--vermillion);
  margin-bottom: 1rem;
}

.price-amount span {
  font-size: 0.85rem;
  color: var(--ink-mute);
  font-style: normal;
}

.price-features {
  list-style: none;
  font-family: var(--sans-jp);
  font-size: 0.85rem;
  color: var(--ink-soft);
  line-height: 2;
  text-align: left;
  padding-top: 1rem;
  border-top: 0.5px solid var(--line);
}

.price-features li::before {
  content: "◇ ";
  color: var(--gold);
}

/* フォーム */
.contact-form {
  display: grid;
  gap: 1.2rem;
}

.form-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1rem;
  align-items: start;
}

@media (max-width: 720px) {
  .form-row { grid-template-columns: 1fr; gap: 0.4rem; }
}

.form-label {
  font-family: var(--serif-jp);
  font-size: 0.95rem;
  color: var(--indigo-deep);
  font-weight: 500;
  padding-top: 0.6rem;
}

.form-label .required {
  color: var(--vermillion);
  margin-left: 0.3rem;
  font-size: 0.8rem;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--cream);
  border: 0.5px solid var(--line);
  border-radius: 2px;
  font-family: var(--serif-jp);
  font-size: 0.95rem;
  color: var(--ink);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--indigo);
}

.form-textarea {
  min-height: 130px;
  resize: vertical;
}

/* ========== ユーティリティ ========== */
.text-center { text-align: center; }
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }

.lead {
  font-family: var(--serif-jp);
  font-size: 1.05rem;
  line-height: 2;
  color: var(--ink-soft);
  max-width: 720px;
  margin: 0 auto 2rem;
}

/* ========== アニメーション ========== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-up {
  animation: fadeUp 0.8s ease-out both;
}

.fade-up-1 { animation-delay: 0.1s; }
.fade-up-2 { animation-delay: 0.25s; }
.fade-up-3 { animation-delay: 0.4s; }
.fade-up-4 { animation-delay: 0.55s; }

/* ========== 装飾 ========== */
.ornament {
  font-family: var(--serif-en);
  color: var(--gold);
  letter-spacing: 0.5em;
  text-align: center;
  margin: 2rem 0;
  opacity: 0.5;
  font-size: 0.9rem;
}