/* 🌟 PRO高級デザイン - AI香水レコメンド */

:root {
  /* プレミアムカラー */
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gold-gradient: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
  --dark-gradient: linear-gradient(135deg, #434343 0%, #000000 100%);
  
  /* ガラスモーフィズム */
  --glass-bg: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  
  /* 高級カラー */
  --luxury-gold: #D4AF37;
  --luxury-platinum: #E5E4E2;
  --luxury-purple: #6B46C1;
  --luxury-rose: #FF6B9D;
  
  /* テキストカラー */
  --text-primary: #2D3748;
  --text-secondary: #718096;
  --text-light: #A0AEC0;
  --text-white: #FFFFFF;
  
  /* 背景 */
  --bg-primary: #F7FAFC;
  --bg-secondary: #EDF2F7;
  --bg-dark: #1A202C;
  
  /* シャドウ */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.2);
  
  /* アニメーション */
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Helvetica Neue', 'Arial', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Meiryo', sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  background-attachment: fixed;
  min-height: 100vh;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* アニメーション背景 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,186.7C384,213,480,235,576,213.3C672,192,768,128,864,128C960,128,1056,192,1152,197.3C1248,203,1344,149,1392,122.7L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
  background-size: cover;
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
  pointer-events: none;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.02); }
}

/* コンテナ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  position: relative;
  z-index: 1;
}

/* ガラスモーフィズムカード */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  box-shadow: var(--glass-shadow);
  padding: 2rem;
  transition: var(--transition-smooth);
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.45);
}

/* ヘッダー - プレミアムスタイル */
.header {
  text-align: center;
  padding: 3rem 0;
  position: relative;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.header h1 {
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #fff 0%, var(--luxury-platinum) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 80px rgba(255, 255, 255, 0.5);
  letter-spacing: 2px;
  margin-bottom: 1rem;
  animation: glow 3s ease-in-out infinite;
}

@keyframes glow {
  0%, 100% { filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.5)); }
  50% { filter: drop-shadow(0 0 40px rgba(255, 255, 255, 0.8)); }
}

.subtitle {
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 300;
  letter-spacing: 1px;
}

/* 言語セレクター */
.language-selector {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}

.lang-btn {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 2px solid var(--glass-border);
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-btn:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.3);
  border-color: white;
}

.lang-btn.active {
  background: linear-gradient(135deg, var(--luxury-gold) 0%, var(--luxury-rose) 100%);
  border-color: var(--luxury-gold);
  box-shadow: 0 8px 30px rgba(212, 175, 55, 0.4);
}

/* ボタン - プレミアムスタイル */
.btn-primary {
  background: var(--primary-gradient);
  color: white;
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.5px;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6);
}

.btn-primary:active {
  transform: translateY(-1px) scale(1.02);
}

/* オプションカード - 高級感 */
.option-card {
  background: var(--glass-bg);
  backdrop-filter: blur(15px);
  border: 2px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.option-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  opacity: 0;
  transition: var(--transition-smooth);
}

.option-card:hover::before {
  opacity: 1;
  transform: scale(1.2);
}

.option-card:hover {
  transform: translateY(-10px) scale(1.05);
  border-color: var(--luxury-gold);
  box-shadow: 0 20px 60px rgba(212, 175, 55, 0.4);
}

.option-card.selected {
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.2) 0%, rgba(255, 107, 157, 0.2) 100%);
  border-color: var(--luxury-gold);
  border-width: 3px;
  box-shadow: 0 15px 50px rgba(212, 175, 55, 0.5),
              inset 0 0 20px rgba(255, 255, 255, 0.1);
}

.option-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.2));
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.option-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: white;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* 入力フィールド - エレガント */
input, textarea, select {
  background: rgba(255, 255, 255, 0.95);
  border: 2px solid var(--glass-border);
  border-radius: 16px;
  padding: 1rem 1.5rem;
  font-size: 1rem;
  width: 100%;
  transition: var(--transition-smooth);
  color: var(--text-primary);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--luxury-gold);
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.1),
              0 8px 24px rgba(212, 175, 55, 0.2);
  transform: translateY(-2px);
}

/* ローディング - プレミアム */
.spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--luxury-gold);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ナビゲーション - モダン */
.main-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}

.nav-item {
  background: var(--glass-bg);
  backdrop-filter: blur(15px);
  border: 2px solid var(--glass-border);
  color: white;
  padding: 1rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
  border-color: white;
}

.nav-item.active {
  background: var(--gold-gradient);
  border-color: var(--luxury-gold);
  box-shadow: 0 10px 35px rgba(212, 175, 55, 0.5);
}

/* レスポンシブ */
@media (max-width: 768px) {
  .header h1 {
    font-size: 2.5rem;
  }
  
  .container {
    padding: 1rem;
  }
  
  .glass-card {
    padding: 1.5rem;
  }
  
  .language-selector {
    flex-direction: column;
  }
  
  .lang-btn {
    width: 100%;
    justify-content: center;
  }
}

/* キラキラエフェクト */
@keyframes sparkle {
  0%, 100% { opacity: 0; transform: scale(0); }
  50% { opacity: 1; transform: scale(1); }
}

.sparkle {
  position: absolute;
  width: 10px;
  height: 10px;
  background: white;
  border-radius: 50%;
  animation: sparkle 2s ease-in-out infinite;
  pointer-events: none;
}

/* スクロールバー - カスタム */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: var(--gold-gradient);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--luxury-rose) 0%, var(--luxury-gold) 100%);
}

/* ========================================
   🌐 言語セレクター（多言語対応）
   ======================================== */

#languageSelector {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
}

.language-selector {
  display: flex;
  gap: 8px;
  padding: 8px 12px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  box-shadow: var(--shadow-lg);
  animation: fadeInScale 0.5s ease-out;
}

.language-selector .lang-btn {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 25px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-white);
  cursor: pointer;
  transition: var(--transition-smooth);
  white-space: nowrap;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.language-selector .lang-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.language-selector .lang-btn.active {
  background: var(--gold-gradient);
  border-color: var(--luxury-gold);
  color: var(--text-white);
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.4);
  transform: scale(1.05);
}

.language-selector .lang-btn:active {
  transform: translateY(0) scale(0.98);
}

/* モバイル対応 */
@media (max-width: 768px) {
  #languageSelector {
    top: 10px;
    right: 10px;
  }
  
  .language-selector {
    padding: 6px 10px;
    gap: 6px;
  }
  
  .language-selector .lang-btn {
    padding: 6px 12px;
    font-size: 12px;
  }
}