/* ==========================================
   NESLEDJAPAN アワード受賞レベルデザインシステム
   ========================================== */

/* ========== リセットとベース設定 ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* カラーシステム */
  --color-primary: #0066FF;
  --color-primary-dark: #0052CC;
  --color-primary-light: #3385FF;
  --color-secondary: #00D9FF;
  --color-accent: #FF3D71;
  --color-success: #00E676;
  
  /* グラデーション */
  --gradient-primary: linear-gradient(135deg, #0066FF 0%, #00D9FF 100%);
  --gradient-hero: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
  
  /* グレースケール */
  --color-black: #0A0E27;
  --color-gray-900: #1A1F3A;
  --color-gray-800: #2D3348;
  --color-gray-700: #4A5568;
  --color-gray-600: #718096;
  --color-gray-500: #A0AEC0;
  --color-gray-400: #CBD5E0;
  --color-gray-300: #E2E8F0;
  --color-gray-200: #EDF2F7;
  --color-gray-100: #F7FAFC;
  --color-white: #FFFFFF;
  
  /* タイポグラフィ */
  --font-primary: 'Noto Sans JP', sans-serif;
  --font-secondary: 'Montserrat', sans-serif;
  
  /* スペーシング */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* ボーダー半径 */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  
  /* シャドウ */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.24);
  
  /* トランジション */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ========== コンテナ ========== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ========== ナビゲーション ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  transition: all var(--transition-base);
  border-bottom: 1px solid transparent;
}

.navbar-scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
  border-bottom-color: var(--color-gray-200);
}

.navbar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.navbar-brand {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  text-decoration: none;
  font-family: var(--font-secondary);
  font-weight: 900;
  transition: transform var(--transition-fast);
}

.navbar-brand:hover {
  transform: translateY(-2px);
}

.brand-text {
  font-size: 1.75rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.brand-sub {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  font-weight: 600;
  letter-spacing: 0.1em;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  color: var(--color-gray-700);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.938rem;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

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

.nav-link:hover::after {
  width: 100%;
}

.nav-link-cta {
  padding: 0.625rem 1.5rem;
  background: var(--gradient-primary);
  color: var(--color-white);
  border-radius: 50px;
  font-weight: 600;
}

.nav-link-cta::after {
  display: none;
}

.nav-link-cta:hover {
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ========== ヒーローセクション ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero-background {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(0, 102, 255, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 217, 255, 0.15) 0%, transparent 50%);
  animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--spacing-3xl) 0;
}

.hero-text {
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-family: var(--font-secondary);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-gray-300);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
  font-weight: 400;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-size: 1.063rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 50px;
  transition: all var(--transition-base);
  font-family: var(--font-primary);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: 0 8px 24px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 102, 255, 0.4);
}

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

.btn-secondary:hover {
  background: var(--color-white);
  color: var(--color-primary);
  transform: translateY(-4px);
}

/* スクロールインジケーター */
.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-icon {
  width: 30px;
  height: 50px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 25px;
  position: relative;
}

.scroll-icon::after {
  content: '';
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 10px;
  background: var(--color-white);
  border-radius: 3px;
  animation: scroll-down 2s ease-in-out infinite;
}

@keyframes scroll-down {
  0% { opacity: 1; top: 10px; }
  100% { opacity: 0; top: 30px; }
}

/* ========== セクション共通 ========== */
section {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  font-family: var(--font-secondary);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-md);
  text-align: center;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-gray-600);
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== 特徴セクション ========== */
.features {
  background: var(--color-gray-100);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.feature-card {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  opacity: 0;
  transform: translateY(30px);
}

.feature-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 70px;
  height: 70px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
}

.feature-icon svg {
  width: 36px;
  height: 36px;
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-secondary);
}

.feature-card p {
  color: var(--color-gray-600);
  line-height: 1.8;
}

/* ========== 製品セクション ========== */
.products {
  background: var(--color-white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  opacity: 0;
  transform: translateY(30px);
}

.product-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.product-image {
  position: relative;
  width: 100%;
  height: 240px;
  background: var(--gradient-hero);
  overflow: hidden;
}

.product-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  opacity: 0.5;
}

.product-placeholder svg {
  width: 80px;
  height: 80px;
}

.product-content {
  padding: var(--spacing-xl);
}

.product-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-secondary);
}

.product-card p {
  color: var(--color-gray-600);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.product-features {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.product-features li {
  padding: 0.5rem 1rem;
  background: var(--color-gray-100);
  border-radius: 50px;
  font-size: 0.875rem;
  color: var(--color-gray-700);
  font-weight: 500;
}

/* ========== メリットセクション ========== */
.benefits {
  background: var(--color-gray-900);
  color: var(--color-white);
}

.benefits .section-title {
  color: var(--color-white);
  text-align: left;
}

.benefits-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.benefits-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.benefit-item {
  display: flex;
  gap: var(--spacing-md);
  opacity: 0;
  transform: translateX(-30px);
  transition: all var(--transition-base);
}

.benefit-item.animate-in {
  opacity: 1;
  transform: translateX(0);
}

.benefit-number {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-secondary);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-white);
}

.benefit-info h3 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  font-family: var(--font-secondary);
}

.benefit-info p {
  color: var(--color-gray-400);
  line-height: 1.7;
}

.benefits-visual {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.visual-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
}

.stat-number {
  font-family: var(--font-secondary);
  font-size: 3.5rem;
  font-weight: 900;
  margin-bottom: var(--spacing-sm);
  line-height: 1;
}

.stat-label {
  color: var(--color-gray-400);
  font-size: 1rem;
  line-height: 1.6;
}

/* ========== 会社情報セクション ========== */
.company {
  background: var(--color-white);
}

.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  margin-top: var(--spacing-2xl);
}

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

.info-table tr {
  border-bottom: 1px solid var(--color-gray-200);
}

.info-table th,
.info-table td {
  padding: var(--spacing-md);
  text-align: left;
}

.info-table th {
  font-weight: 600;
  color: var(--color-gray-700);
  width: 140px;
  font-size: 0.938rem;
}

.info-table td {
  color: var(--color-gray-800);
  font-size: 1rem;
}

.link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.company-map {
  background: var(--color-gray-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.map-placeholder {
  text-align: center;
  color: var(--color-gray-600);
}

.map-placeholder svg {
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-md);
}

.map-placeholder p {
  font-size: 1.125rem;
  font-weight: 600;
}

/* ========== お問い合わせセクション ========== */
.contact {
  background: var(--color-gray-100);
}

.contact-content {
  max-width: 900px;
  margin: 0 auto;
}

.contact-description {
  text-align: center;
  color: var(--color-gray-600);
  font-size: 1.125rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-2xl);
}

.contact-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.contact-method {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: var(--spacing-md);
  transition: all var(--transition-base);
  opacity: 0;
  transform: translateY(30px);
}

.contact-method.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.contact-method:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.method-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
}

.method-icon svg {
  width: 28px;
  height: 28px;
}

.method-content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: 0.5rem;
}

.contact-detail {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
  font-family: var(--font-secondary);
}

.contact-time {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.contact-features {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.contact-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-white);
  border-radius: 50px;
  box-shadow: var(--shadow-sm);
}

.contact-feature svg {
  width: 20px;
  height: 20px;
  color: var(--color-success);
}

.contact-feature span {
  font-weight: 600;
  color: var(--color-gray-700);
  font-size: 0.938rem;
}

/* ========== フッター ========== */
.footer {
  background: var(--color-black);
  color: var(--color-gray-400);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
  font-family: var(--font-secondary);
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
}

.footer-brand p {
  color: var(--color-gray-500);
  line-height: 1.6;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.footer-section h4 {
  color: var(--color-white);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: var(--spacing-md);
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 0.75rem;
}

.footer-section a {
  color: var(--color-gray-400);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-size: 0.938rem;
}

.footer-section a:hover {
  color: var(--color-primary-light);
}

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-gray-800);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

/* ========== レスポンシブデザイン ========== */
@media (max-width: 768px) {
  .navbar-menu {
    gap: var(--spacing-sm);
  }
  
  .nav-link {
    font-size: 0.875rem;
  }
  
  .nav-link-cta {
    padding: 0.5rem 1rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
  }
  
  .features-grid,
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .benefits-content {
    grid-template-columns: 1fr;
  }
  
  .company-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
  }
  
  .contact-methods {
    grid-template-columns: 1fr;
  }
}