/* ============================================
   AIキャラクター・リアライズ - スタイルシート
   BLAST × Zeppet
   
   ■ 編集ガイド（小野田さんへ）
   - テキストの変更 → index.html を編集
   - 色の変更 → このファイルの「カラー変数」セクション
   - フォントの変更 → このファイルの「タイポグラフィ」セクション
   - レイアウトの変更 → 各セクションのスタイルを編集
   ============================================ */

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

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

body {
  font-family: "DM Sans", "Noto Sans JP", sans-serif;
  color: #e0e0e0;
  background-color: #0a0e27;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

/* ============================================
   カラー変数（ここで色を一括管理）
   ============================================ */
:root {
  --color-dark: #0a0e27;
  --color-blue: #4361ee;
  --color-blue-hover: #3451de;
  --color-amber: #f4a261;
  --color-amber-hover: #e4924f;
  --color-terracotta: #e76f51;
  --color-purple: #6366f1;
  --color-violet: #8b5cf6;
  --color-white: #ffffff;
  --color-gray-100: #f0f0f0;
  --color-gray-300: #c0c0c0;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
}

/* ============================================
   タイポグラフィ
   ============================================ */
.font-display,
h1, h2 {
  font-family: "Playfair Display", serif;
}

/* ============================================
   コンテナ
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.container-narrow {
  max-width: 800px;
}

@media (min-width: 640px) {
  .container { padding: 0 1.5rem; }
}

@media (min-width: 1024px) {
  .container { padding: 0 2rem; }
}

/* ============================================
   ボタン
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  font-family: "DM Sans", "Noto Sans JP", sans-serif;
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  border-radius: 9999px;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
  border-radius: 9999px;
}

.btn-primary {
  background-color: var(--color-blue);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-blue-hover);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-gray-300);
  border: 1px solid var(--color-gray-500);
}

.btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.btn-amber {
  background-color: var(--color-amber);
  color: #1a1520;
  font-weight: 700;
}

.btn-amber:hover {
  background-color: var(--color-amber-hover);
}

.btn-glow {
  box-shadow: 0 0 30px rgba(67, 97, 238, 0.4);
}

.btn-glow:hover {
  box-shadow: 0 0 50px rgba(67, 97, 238, 0.6);
}

.btn-glow-amber {
  box-shadow: 0 0 30px rgba(244, 162, 97, 0.3);
}

.btn-glow-amber:hover {
  box-shadow: 0 0 50px rgba(244, 162, 97, 0.5);
}

.btn-plan {
  display: block;
  width: 100%;
  padding: 0.875rem;
  border-radius: 9999px;
  color: var(--color-white);
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
}

.btn-plan:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* ============================================
   ナビゲーション
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(10, 14, 39, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo-icon {
  color: var(--color-blue);
  font-size: 1.25rem;
}

.nav-logo-text {
  font-weight: 700;
  color: var(--color-white);
  font-size: 0.9rem;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
  font-size: 0.875rem;
  color: var(--color-gray-400);
}

.nav-links a:hover {
  color: var(--color-white);
  transition: color 0.3s;
}

.nav-cta {
  display: none;
}

/* モバイルメニュー */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-white);
  transition: all 0.3s;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem;
  background-color: rgba(10, 14, 39, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  color: var(--color-gray-300);
  font-size: 1rem;
  padding: 0.5rem 0;
}

.mobile-menu a:hover {
  color: var(--color-white);
}

@media (min-width: 768px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .mobile-menu-btn { display: none; }
  .mobile-menu { display: none !important; }
  .nav-logo-text { font-size: 1rem; }
}

/* ============================================
   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;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 14, 39, 0.7),
    rgba(10, 14, 39, 0.5) 50%,
    rgba(10, 14, 39, 1)
  );
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
  margin: 0 auto;
  padding: 6rem 1.5rem 4rem;
  text-align: center;
}

.hero-subtitle {
  color: var(--color-amber);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--color-gray-300);
  max-width: 700px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  color: rgba(67, 97, 238, 0.6);
  font-size: 2rem;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(12px); }
}

@media (min-width: 768px) {
  .hero-title { font-size: 3.75rem; }
  .hero-description { font-size: 1.25rem; }
  .hero-buttons { flex-direction: row; justify-content: center; }
}

@media (min-width: 1024px) {
  .hero-title { font-size: 4.5rem; }
}

/* ============================================
   テキストグロウエフェクト
   ============================================ */
.text-glow-blue {
  color: var(--color-blue);
  text-shadow: 0 0 20px rgba(67, 97, 238, 0.5), 0 0 40px rgba(67, 97, 238, 0.3);
}

.text-glow-amber {
  color: var(--color-amber);
  text-shadow: 0 0 20px rgba(244, 162, 97, 0.5), 0 0 40px rgba(244, 162, 97, 0.3);
}

/* ============================================
   セクション共通
   ============================================ */
.section {
  padding: 6rem 0;
}

.section-dark {
  background-color: var(--color-dark);
}

.section-gradient-1 {
  background: linear-gradient(180deg, #0a0e27 0%, #1a1035 50%, #2a1a30 100%);
}

.section-gradient-2 {
  background: linear-gradient(180deg, #2a1a30 0%, #3d2520 100%);
}

.section-gradient-3 {
  background: linear-gradient(180deg, #3d2520 0%, #1a1035 50%, #0a0e27 100%);
}

.section-gradient-4 {
  background: linear-gradient(180deg, #0a0e27 0%, #1a1520 100%);
}

.section-gradient-5 {
  background: linear-gradient(180deg, #1a1520 0%, #0a0e27 100%);
}

.section-purple {
  background-color: #1a1520;
}

@media (min-width: 768px) {
  .section { padding: 8rem 0; }
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-label {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-weight: 500;
}

.label-blue { color: var(--color-blue); }
.label-amber { color: var(--color-amber); }

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.section-title.text-left {
  text-align: left;
}

@media (min-width: 768px) {
  .section-title { font-size: 3rem; }
}

.section-description {
  font-size: 1.1rem;
  color: var(--color-gray-400);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

.body-text {
  font-size: 1.1rem;
  color: var(--color-gray-300);
  line-height: 1.8;
  margin-bottom: 2rem;
}

/* ============================================
   画像ショーケース動画
   ============================================ */
.movie_youtube {
  border-radius: 1rem;
  overflow: hidden;
align-items: center;
}

.movie_youtube iframe {
  width: auto;
  height: auto;
}

/* ============================================
   画像ショーケース
   ============================================ */
.image-showcase {
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 25px 50px rgba(67, 97, 238, 0.1);
}

.image-showcase img {
  width: 100%;
  height: auto;
}

/* ============================================
   6ステップグリッド
   ============================================ */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .steps-grid { grid-template-columns: repeat(3, 1fr); }
}

.step-card {
  background-color: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  padding: 2rem;
  transition: all 0.4s ease;
}


.step-icon {
  width: 56px;
  height: 56px;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.step-number {
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--color-gray-500);
  margin-bottom: 0.5rem;
}

.step-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.75rem;
  font-family: "DM Sans", "Noto Sans JP", sans-serif;
}

.step-description {
  font-size: 0.95rem;
  color: var(--color-gray-400);
  line-height: 1.7;
}

/* ============================================
   2カラムレイアウト
   ============================================ */
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .two-col { grid-template-columns: 1fr 1fr; gap: 4rem; }
}

.two-col-image {
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.two-col-image img {
  width: 100%;
  height: auto;
}

@media (min-width: 1024px) {
  .two-col-reverse .two-col-image { order: -1; }
}

/* ============================================
   統計数値
   ============================================ */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.stat { text-align: center; }

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-amber);
  font-family: "Playfair Display", serif;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-gray-400);
  margin-top: 0.25rem;
}

@media (min-width: 768px) {
  .stat-number { font-size: 2.5rem; }
}

/* ============================================
   機能リスト
   ============================================ */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--color-gray-300);
  font-size: 1.1rem;
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}

/* ============================================
   料金プラン
   ============================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin: 0;
}

@media (min-width: 768px) {
  .pricing-grid { grid-template-columns: 1fr; 
    margin: 0 9rem;}
}

.pricing-card {
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  padding: 2rem;
  position: relative;
  transition: all 0.4s ease;
}

.pricing-card:hover {
  transform: scale(1.02);
}

.pricing-popular {
  background-color: rgba(244, 162, 97, 0.06);
  border-color: rgba(244, 162, 97, 0.25);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.25rem 1rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-white);
}

.pricing-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.5rem;
  font-family: "DM Sans", "Noto Sans JP", sans-serif;
}

.pricing-target {
  font-size: 0.85rem;
  color: var(--color-gray-500);
  margin-bottom: 1.5rem;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  margin-bottom: 2rem;
}

.pricing-amount {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: "Playfair Display", serif;
}

.pricing-unit {
  color: var(--color-gray-400);
  font-size: 1rem;
}

.pricing-features {
  margin-bottom: 2rem;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--color-gray-300);
  padding: 0.5rem 0;
  font-size: 0.95rem;
}

.pricing-features .check {
  flex-shrink: 0;
  margin-top: 2px;
}

/* ============================================
   選ばれる理由
   ============================================ */
.reasons-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .reasons-grid { grid-template-columns: repeat(2, 1fr); }
}

.reason-card {
  background-color: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  padding: 2rem;
  transition: all 0.4s ease;
}

.reason-number {
  font-size: 3rem;
  font-weight: 700;
  color: rgba(67, 97, 238, 0.4);
  font-family: "Playfair Display", serif;
  line-height: 1;
  margin-bottom: 1rem;
}

.reason-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.75rem;
  font-family: "DM Sans", "Noto Sans JP", sans-serif;
}

.reason-description {
  color: var(--color-gray-400);
  line-height: 1.7;
}

/* ============================================
   お問い合わせ
   ============================================ */
.contact-box {
  background-color: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  padding: 2rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .contact-box { padding: 3rem; }
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  text-align: left;
}

@media (min-width: 640px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

.contact-heading {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 1rem;
  font-family: "DM Sans", "Noto Sans JP", sans-serif;
}

.contact-info {
  color: var(--color-gray-400);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.contact-label {
  color: var(--color-gray-500);
}

.contact-link {
  color: var(--color-blue);
  transition: opacity 0.3s;
}

.contact-link:hover {
  text-decoration: underline;
}

.contact-cta {
  text-align: center;
  margin-bottom: 4rem;
}

/* ============================================
   フッター
   ============================================ */
.footer {
  background-color: #050810;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 3rem 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-title {
  font-weight: 700;
  color: var(--color-white);
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.footer-sub {
  color: var(--color-gray-500);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

.footer-links a:hover {
  color: var(--color-white);
  transition: color 0.3s;
}

.footer-copyright {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-gray-600);
}

/* ============================================
   ユーティリティ
   ============================================ */
.hide-sp {
  display: none;
}

@media (min-width: 768px) {
  .hide-sp { display: inline; }
}

/* スクロールアニメーション */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}