/* 
   Jazz Cafe & Audio Lounge "RONDONE" 
   Style Sheet
*/

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700&family=Noto+Sans+JP:wght@300;400;500;700&family=Playfair+Display:ital,wght@0,400;0,600;1,400&display=swap');

:root {
  --bg-color-dark: #0f0d0c;
  --bg-color-medium: #1a1614;
  --bg-color-light: #26211e;
  --primary-gold: #cca43b;
  --primary-gold-hover: #e5bd55;
  --text-light: #e6dfd5;
  --text-muted: #a89f95;
  --accent-brown: #3d342e;
  --font-serif: 'Cinzel', 'Playfair Display', 'Noto Sans JP', serif;
  --font-sans: 'Noto Sans JP', 'Montserrat', sans-serif;
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  background-color: var(--bg-color-dark);
  color: var(--text-light);
  font-family: var(--font-sans);
  line-height: 1.8;
  overflow-x: hidden;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* スクロールバーのカスタマイズ */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color-dark);
}
::-webkit-scrollbar-thumb {
  background: var(--accent-brown);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-gold);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-smooth);
}

/* ヘッダーナビゲーション */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(15, 13, 12, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(204, 164, 59, 0.1);
  transition: var(--transition-smooth);
}

header.scrolled {
  padding: 10px 0;
  background: rgba(15, 13, 12, 0.98);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'Cinzel', serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary-gold);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo span {
  font-size: 0.8rem;
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 1px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 30px;
}

nav ul li a {
  font-family: 'Cinzel', serif;
  font-size: 0.9rem;
  letter-spacing: 1px;
  position: relative;
  padding: 5px 0;
}

nav ul li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--primary-gold);
  transition: var(--transition-smooth);
}

nav ul li a:hover {
  color: var(--primary-gold);
}

nav ul li a:hover::after {
  width: 100%;
}

/* モバイルメニュー用トグルボタン */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--text-light);
  transition: var(--transition-smooth);
}

/* メインヒーローセクション */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(rgba(15, 13, 12, 0.4), rgba(15, 13, 12, 0.9)), url('images/jazz_cafe_hero.png');
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: slow-zoom 20s infinite alternate;
  z-index: -1;
}

@keyframes slow-zoom {
  0% { transform: scale(1); }
  100% { transform: scale(1.1); }
}

.hero-content {
  max-width: 800px;
  padding: 0 20px;
  z-index: 2;
  opacity: 0;
  transform: translateY(30px);
  animation: fade-in-up 1.5s forwards 0.5s;
}

@keyframes fade-in-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-subtitle {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-size: 1.5rem;
  color: var(--primary-gold);
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.hero-title {
  font-family: 'Cinzel', serif;
  font-size: 4rem;
  font-weight: 700;
  letter-spacing: 4px;
  margin-bottom: 30px;
  line-height: 1.2;
  text-shadow: 0 4px 20px rgba(0,0,0,0.6);
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  font-weight: 300;
}

.btn {
  display: inline-block;
  padding: 15px 35px;
  border: 1px solid var(--primary-gold);
  color: var(--text-light);
  font-family: 'Cinzel', serif;
  font-size: 0.9rem;
  letter-spacing: 2px;
  background: transparent;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--primary-gold);
  transition: var(--transition-smooth);
  z-index: -1;
}

.btn:hover {
  color: var(--bg-color-dark);
}

.btn:hover::before {
  left: 0;
}

/* スクロールダウンの指示 */
.scroll-down {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 2px;
  font-family: 'Cinzel', serif;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--primary-gold), transparent);
  animation: scroll-wave 2s infinite;
}

@keyframes scroll-wave {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* セクション共通 */
section {
  padding: 100px 0;
  position: relative;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-subtitle {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  color: var(--primary-gold);
  font-size: 1.1rem;
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.section-title {
  font-family: 'Cinzel', serif;
  font-size: 2.5rem;
  font-weight: 600;
  letter-spacing: 3px;
  position: relative;
  display: inline-block;
  padding-bottom: 15px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 1px;
  background-color: var(--primary-gold);
}

/* フェードインアニメーション用クラス */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1s ease, transform 1s ease;
}

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

/* コンセプトセクション */
.concept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.concept-text h3 {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  margin-bottom: 20px;
  font-weight: 400;
  color: var(--primary-gold);
}

.concept-text p {
  color: var(--text-muted);
  margin-bottom: 25px;
  font-weight: 300;
}

.concept-quote {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  border-left: 2px solid var(--primary-gold);
  padding-left: 20px;
  margin: 30px 0;
  font-size: 1.1rem;
  color: var(--text-light);
}

.concept-img-wrapper {
  position: relative;
  border: 1px solid rgba(204, 164, 59, 0.2);
  padding: 15px;
}

.concept-img-wrapper::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  border: 1px solid rgba(204, 164, 59, 0.1);
  pointer-events: none;
}

.concept-img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(20%) sepia(10%);
  transition: var(--transition-smooth);
}

.concept-img-wrapper:hover .concept-img {
  filter: grayscale(0%) sepia(0%);
  transform: scale(1.02);
}

/* オーディオシステムセクション */
.audio-section {
  background-color: var(--bg-color-medium);
}

.audio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.audio-grid.reverse {
  direction: rtl;
}

.audio-grid.reverse .audio-text {
  direction: ltr;
}

.audio-specs {
  margin-top: 30px;
  list-style: none;
}

.audio-specs li {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(230, 223, 213, 0.1);
}

.audio-specs li span:first-child {
  color: var(--primary-gold);
  font-family: 'Cinzel', serif;
  font-size: 0.9rem;
}

.audio-specs li span:last-child {
  color: var(--text-muted);
  font-weight: 300;
}

/* メニューセクション */
.menu-tabs {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 50px;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: 'Cinzel', serif;
  font-size: 1rem;
  letter-spacing: 1px;
  padding: 10px 25px;
  cursor: pointer;
  transition: var(--transition-smooth);
  border-bottom: 1px solid transparent;
}

.tab-btn:hover, .tab-btn.active {
  color: var(--primary-gold);
  border-bottom: 1px solid var(--primary-gold);
}

.menu-container {
  position: relative;
  min-height: 400px;
}

.menu-panel {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 40px 60px;
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.menu-panel.active {
  display: grid;
  opacity: 1;
  transform: translateY(0);
}

.menu-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(230, 223, 213, 0.05);
}

.menu-item-info {
  max-width: 80%;
}

.menu-item-header {
  display: flex;
  align-items: baseline;
  gap: 15px;
  margin-bottom: 5px;
}

.menu-item-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-light);
}

.menu-item-badge {
  font-size: 0.7rem;
  background-color: var(--accent-brown);
  color: var(--primary-gold);
  padding: 2px 8px;
  border-radius: 2px;
  font-family: var(--font-sans);
}

.menu-item-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 300;
}

.menu-item-price {
  font-family: 'Cinzel', serif;
  font-size: 1.1rem;
  color: var(--primary-gold);
  font-weight: 600;
}

/* 仮想レコードプレイヤーセクション */
.player-section {
  background: radial-gradient(circle at center, var(--bg-color-light), var(--bg-color-dark));
  border-top: 1px solid rgba(204, 164, 59, 0.05);
  border-bottom: 1px solid rgba(204, 164, 59, 0.05);
}

.player-wrapper {
  max-width: 900px;
  margin: 0 auto;
  background-color: rgba(26, 22, 20, 0.6);
  border: 1px solid rgba(204, 164, 59, 0.1);
  border-radius: 8px;
  padding: 40px;
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: 40px;
  align-items: center;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
}

/* レコードターンテーブル部 */
.turntable {
  position: relative;
  width: 280px;
  height: 280px;
  margin: 0 auto;
  background-color: #111;
  border-radius: 50%;
  border: 6px solid #222;
  box-shadow: 0 10px 30px rgba(0,0,0,0.8), inset 0 0 20px rgba(0,0,0,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
}

.record {
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, #333 10%, #111 30%, #000 60%, #111 80%, #000 100%);
  border-radius: 50%;
  position: relative;
  box-shadow: 0 0 10px rgba(0,0,0,0.5);
  transition: transform 0.5s ease;
}

/* レコードの溝のテクスチャ */
.record::after {
  content: '';
  position: absolute;
  top: 5px;
  left: 5px;
  right: 5px;
  bottom: 5px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.03);
  box-shadow: 
    inset 0 0 1px rgba(255,255,255,0.05),
    0 0 0 10px rgba(0,0,0,0.2),
    0 0 0 20px rgba(0,0,0,0.3),
    0 0 0 35px rgba(0,0,0,0.4),
    0 0 0 50px rgba(0,0,0,0.5),
    0 0 0 65px rgba(0,0,0,0.6),
    0 0 0 80px rgba(0,0,0,0.7);
  pointer-events: none;
}

.record-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background-color: var(--primary-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  border: 2px solid #000;
  box-shadow: inset 0 0 8px rgba(0,0,0,0.5);
}

.record-label::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  background-color: var(--bg-color-dark);
  border-radius: 50%;
  border: 1px solid #333;
}

.record-label-text {
  font-family: 'Cinzel', serif;
  font-size: 0.55rem;
  color: #000;
  font-weight: 700;
  line-height: 1.1;
  pointer-events: none;
}

/* トーンアーム */
.tonearm {
  position: absolute;
  top: -10px;
  right: 20px;
  width: 90px;
  height: 180px;
  transform-origin: 45px 30px;
  transform: rotate(-35deg);
  transition: transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
  pointer-events: none;
  z-index: 5;
}

.tonearm-base {
  position: absolute;
  top: 15px;
  left: 30px;
  width: 30px;
  height: 30px;
  background: radial-gradient(circle, #777 30%, #333 70%);
  border-radius: 50%;
  border: 1px solid #111;
  box-shadow: 0 4px 6px rgba(0,0,0,0.4);
}

.tonearm-arm {
  position: absolute;
  top: 30px;
  left: 42px;
  width: 6px;
  height: 120px;
  background: linear-gradient(to right, #aaa, #666, #aaa);
  border-radius: 3px;
  transform: rotate(5deg);
  transform-origin: top center;
}

.tonearm-head {
  position: absolute;
  bottom: 0px;
  left: 45px;
  width: 14px;
  height: 25px;
  background: #222;
  border: 1px solid #444;
  border-radius: 2px;
  transform: rotate(15deg);
}

/* 回転アニメーション */
.turntable.playing .record {
  animation: spin-record 4s linear infinite;
}

.turntable.playing .tonearm {
  transform: rotate(2deg);
}

@keyframes spin-record {
  100% {
    transform: rotate(360deg);
  }
}

/* プレイヤーコントロール */
.player-controls-wrapper {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.now-playing {
  border-bottom: 1px solid rgba(204, 164, 59, 0.1);
  padding-bottom: 20px;
}

.now-playing-label {
  font-family: 'Cinzel', serif;
  font-size: 0.75rem;
  letter-spacing: 2px;
  color: var(--primary-gold);
  margin-bottom: 5px;
}

.track-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--text-light);
}

.track-artist {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 300;
}

/* 進捗バー */
.player-progress {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: 'Cinzel', serif;
}

.progress-bar-container {
  flex-grow: 1;
  height: 4px;
  background-color: rgba(230, 223, 213, 0.1);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background-color: var(--primary-gold);
  border-radius: 2px;
  transition: width 0.1s linear;
}

/* コントロールボタン群 */
.control-btns {
  display: flex;
  align-items: center;
  gap: 30px;
}

.control-btn {
  background: transparent;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
}

.control-btn:hover {
  color: var(--primary-gold);
}

.btn-play-pause {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--primary-gold);
  color: var(--bg-color-dark);
  box-shadow: 0 4px 15px rgba(204, 164, 59, 0.3);
}

.btn-play-pause:hover {
  background-color: var(--primary-gold-hover);
  color: var(--bg-color-dark);
  transform: scale(1.05);
}

.control-btn svg {
  fill: currentColor;
}

.track-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.track-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 15px;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.track-item:hover {
  background-color: rgba(230, 223, 213, 0.03);
  border-color: rgba(204, 164, 59, 0.1);
}

.track-item.active {
  background-color: rgba(204, 164, 59, 0.05);
  border-color: rgba(204, 164, 59, 0.2);
}

.track-item.active .track-item-title {
  color: var(--primary-gold);
}

.track-item-info {
  display: flex;
  flex-direction: column;
}

.track-item-title {
  font-family: 'Playfair Display', serif;
  font-size: 0.95rem;
  color: var(--text-light);
}

.track-item-artist {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.track-item-time {
  font-size: 0.8rem;
  font-family: 'Cinzel', serif;
  color: var(--text-muted);
}

/* インフォメーションセクション */
.info-section {
  background-color: var(--bg-color-medium);
}

.info-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: 60px;
}

.info-details {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.info-item h4 {
  font-family: 'Cinzel', serif;
  color: var(--primary-gold);
  font-size: 1rem;
  letter-spacing: 1px;
  margin-bottom: 10px;
  border-left: 2px solid var(--primary-gold);
  padding-left: 10px;
}

.info-item p {
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.6;
}

.map-wrapper {
  width: 100%;
  height: 100%;
  min-height: 350px;
  border: 1px solid rgba(204, 164, 59, 0.1);
  padding: 10px;
  background-color: var(--bg-color-light);
}

.map-container {
  width: 100%;
  height: 100%;
  min-height: 330px;
  background-color: #222;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* 疑似マップ風プレースホルダー（Google Mapを埋め込む代わりに、美しいダークスタイルのデザインマップをCSSと画像等で表現するか、あるいはモック表示） */
.mock-map {
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 40% 50%, rgba(204, 164, 59, 0.1) 0%, transparent 60%), linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6));
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
}

.mock-map::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: 
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 20px 20px;
  top: 0; left: 0;
}

.map-pin {
  width: 24px;
  height: 24px;
  background-color: var(--primary-gold);
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  position: relative;
  box-shadow: 0 4px 10px rgba(0,0,0,0.5);
  animation: pin-bounce 2s infinite alternate;
  z-index: 2;
}

.map-pin::after {
  content: '';
  width: 10px;
  height: 10px;
  background-color: var(--bg-color-dark);
  border-radius: 50%;
  position: absolute;
  top: 7px;
  left: 7px;
}

@keyframes pin-bounce {
  0% { transform: rotate(-45deg) translateY(0); }
  100% { transform: rotate(-45deg) translateY(-10px); }
}

.map-card {
  background-color: rgba(15, 13, 12, 0.95);
  border: 1px solid rgba(204, 164, 59, 0.2);
  padding: 20px;
  border-radius: 4px;
  margin-top: 20px;
  z-index: 2;
  box-shadow: 0 10px 25px rgba(0,0,0,0.5);
  max-width: 280px;
}

.map-card h5 {
  font-family: 'Cinzel', serif;
  color: var(--primary-gold);
  margin-bottom: 5px;
}

.map-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* フッター */
footer {
  background-color: var(--bg-color-dark);
  padding: 60px 0 30px 0;
  border-top: 1px solid rgba(204, 164, 59, 0.05);
  text-align: center;
}

.footer-logo {
  font-family: 'Cinzel', serif;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--primary-gold);
  margin-bottom: 10px;
}

.footer-tagline {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
}

.social-link {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(230, 223, 213, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  color: var(--text-muted);
}

.social-link:hover {
  color: var(--primary-gold);
  border-color: var(--primary-gold);
  background-color: rgba(204, 164, 59, 0.05);
  transform: translateY(-3px);
}

.copyright {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: 'Cinzel', serif;
  letter-spacing: 1px;
}

/* レスポンシブ対応の調整 */
@media (max-width: 992px) {
  .concept-grid, .audio-grid, .info-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .audio-grid.reverse {
    direction: ltr;
  }
  
  .player-wrapper {
    grid-template-columns: 1fr;
    max-width: 500px;
    padding: 30px 20px;
  }
  
  .hero-title {
    font-size: 3rem;
  }
}

@media (max-width: 768px) {
  header {
    padding: 15px 0;
  }
  
  nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 250px;
    height: 100vh;
    background-color: var(--bg-color-medium);
    padding: 80px 40px 40px 40px;
    box-shadow: -5px 0 30px rgba(0,0,0,0.5);
    transition: var(--transition-smooth);
    z-index: 1000;
  }
  
  nav.open {
    right: 0;
  }
  
  nav ul {
    flex-direction: column;
    gap: 25px;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  /* モバイルメニューが開いている時のトグルボタンのアニメーション */
  .menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .menu-toggle.open span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .menu-panel {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .hero-title {
    font-size: 2.2rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
}