/* ==========================================================================
   江戸×AI サイト CSS
   ========================================================================== */

/* 基本設定とリセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Serif JP', serif;
    line-height: 1.6;
    color: #2F2F2F;
    background-color: #F5F5DC;
    overflow-x: hidden;
}

/* 変数定義 */
:root {
    --primary-color: #D2691E;      /* 朱色 */
    --secondary-color: #4169E1;    /* 藍色 */
    --accent-color: #FFD700;       /* 金色 */
    --text-color: #2F2F2F;         /* 墨色 */
    --bg-color: #F5F5DC;           /* 和紙色 */
    --white: #FFFFFF;
    --shadow: rgba(47, 47, 47, 0.1);
    --gradient-edo: linear-gradient(135deg, #D2691E, #FF6B35);
    --gradient-ai: linear-gradient(135deg, #4169E1, #00BFFF);
    --gradient-gold: linear-gradient(135deg, #FFD700, #FFA500);
}

/* コンテナ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ヘッダー・ヒーローセクション */
.hero-section {
    min-height: 100vh;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* パーティクルエフェクト */
.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="1" fill="%23FFD700" opacity="0.5"><animate attributeName="opacity" values="0.5;1;0.5" dur="3s" repeatCount="indefinite"/></circle><circle cx="80" cy="40" r="1" fill="%23D2691E" opacity="0.3"><animate attributeName="opacity" values="0.3;0.8;0.3" dur="4s" repeatCount="indefinite"/></circle><circle cx="60" cy="80" r="1" fill="%234169E1" opacity="0.4"><animate attributeName="opacity" values="0.4;0.9;0.4" dur="5s" repeatCount="indefinite"/></circle></svg>') repeat;
    animation: float 20s infinite linear;
}

@keyframes float {
    0% { transform: translateY(0px) translateX(0px); }
    25% { transform: translateY(-10px) translateX(5px); }
    50% { transform: translateY(0px) translateX(-5px); }
    75% { transform: translateY(10px) translateX(5px); }
    100% { transform: translateY(0px) translateX(0px); }
}

/* 江戸パターン背景 */
.edo-pattern {
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><defs><pattern id="waves" x="0" y="0" width="40" height="20" patternUnits="userSpaceOnUse"><path d="M0 10 Q10 0 20 10 T40 10" stroke="%23D2691E" stroke-width="0.5" fill="none" opacity="0.2"/></pattern></defs><rect width="200" height="200" fill="url(%23waves)"/></svg>') repeat;
    opacity: 0.3;
}

/* ナビゲーション */
.navigation {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(245, 245, 220, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--primary-color);
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-edo);
    transition: width 0.3s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: 0.3s;
}

/* ヒーローコンテンツ */
.hero-content {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.main-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.title-line {
    display: block;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.title-line.highlight {
    background: var(--gradient-ai);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { filter: drop-shadow(0 0 5px #4169E1); }
    to { filter: drop-shadow(0 0 15px #00BFFF); }
}

.subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* ボタンスタイル */
.cta-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-edo);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(210, 105, 30, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(210, 105, 30, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--text-color);
    transform: translateY(-2px);
}

/* ヒーロービジュアル */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.character-preview {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 1rem;
    perspective: 1000px;
}

.character-card {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    animation: levitate 3s ease-in-out infinite;
}

.character-card:nth-child(even) {
    animation-delay: -1.5s;
}

.character-card:hover {
    transform: translateY(-10px) rotateY(15deg);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.3);
}

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

/* スクロールインジケーター */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    z-index: 10;
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: var(--accent-color);
    margin: 0.5rem auto;
    position: relative;
    animation: scroll-bounce 2s infinite;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: -5px;
    width: 12px;
    height: 12px;
    border-right: 2px solid var(--accent-color);
    border-bottom: 2px solid var(--accent-color);
    transform: rotate(45deg);
}

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

/* セクション共通スタイル */
section {
    padding: 5rem 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--text-color);
    position: relative;
}

.title-decoration {
    margin: 0 1rem;
    font-size: 3rem;
    vertical-align: middle;
}

/* キャラクターセクション */
.characters-section {
    background: linear-gradient(135deg, #F5F5DC, #FFF8DC);
    position: relative;
}

.characters-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="10" cy="10" r="2" fill="%23D2691E" opacity="0.1"/><circle cx="90" cy="20" r="1.5" fill="%23FFD700" opacity="0.1"/><circle cx="30" cy="80" r="1" fill="%234169E1" opacity="0.1"/><circle cx="70" cy="70" r="1.2" fill="%23D2691E" opacity="0.1"/></svg>') repeat;
    pointer-events: none;
}

.characters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.character-item {
    background: var(--white);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px var(--shadow);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.character-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-edo);
}

.character-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.character-avatar {
    position: relative;
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.avatar-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--gradient-edo);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    box-shadow: 0 5px 15px rgba(210, 105, 30, 0.3);
}

.ai-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--gradient-ai);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.7rem;
    font-weight: 600;
    box-shadow: 0 3px 10px rgba(65, 105, 225, 0.3);
}

.character-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.5rem;
    text-align: center;
}

.character-role {
    text-align: center;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.character-quote {
    font-style: italic;
    color: #666;
    text-align: center;
    margin-bottom: 1.5rem;
    line-height: 1.5;
    position: relative;
    padding: 0 1rem;
}

.character-quote::before,
.character-quote::after {
    content: '"';
    font-size: 2rem;
    color: var(--primary-color);
    position: absolute;
    top: -10px;
}

.character-quote::before {
    left: 0;
}

.character-quote::after {
    right: 0;
}

.character-ai-uses {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.ai-use {
    background: rgba(210, 105, 30, 0.1);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(210, 105, 30, 0.3);
}

.character-detail-btn {
    width: 100%;
    padding: 0.8rem;
    background: var(--gradient-edo);
    color: var(--white);
    border: none;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.character-detail-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(210, 105, 30, 0.3);
}

/* 体験セクション */
.experience-section {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    color: var(--white);
}

.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.experience-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.experience-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.card-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: block;
}

.experience-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.experience-card p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
    opacity: 0.9;
}

.experience-btn {
    padding: 0.8rem 2rem;
    background: var(--gradient-gold);
    color: var(--text-color);
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.experience-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 215, 0, 0.4);
}

/* 知識セクション */
.knowledge-section {
    background: var(--bg-color);
}

.knowledge-content {
    max-width: 1000px;
    margin: 0 auto;
}

.comparison-table {
    margin-bottom: 3rem;
}

.comparison-table h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.table-container {
    overflow-x: auto;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
}

th, td {
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid #eee;
}

th {
    background: var(--gradient-edo);
    color: var(--white);
    font-weight: 600;
}

tr:hover {
    background-color: rgba(210, 105, 30, 0.05);
}

.knowledge-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.knowledge-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow);
    transition: all 0.3s ease;
}

.knowledge-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.knowledge-card h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* 未来セクション */
.future-section {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: var(--white);
}

.future-content {
    max-width: 1000px;
    margin: 0 auto;
}

.future-scenarios {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.scenario-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.scenario-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.scenario-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.user-input-section {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    text-align: center;
}

.user-input-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.input-container {
    max-width: 600px;
    margin: 0 auto;
}

.input-container textarea {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-color);
    font-family: inherit;
    font-size: 1rem;
    margin-bottom: 1rem;
    resize: vertical;
}

.submit-idea-btn {
    padding: 0.8rem 2rem;
    background: var(--gradient-gold);
    color: var(--text-color);
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-idea-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 215, 0, 0.4);
}

/* フッター */
.footer {
    background: var(--text-color);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.link-group h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.link-group ul {
    list-style: none;
}

.link-group ul li {
    margin-bottom: 0.5rem;
}

.link-group ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.link-group ul li a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom a {
    color: var(--accent-color);
    text-decoration: none;
}

/* モーダル */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: 2rem;
    border-radius: 20px;
    width: 90%;
    max-width: 600px;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from { opacity: 0; transform: translateY(-50px); }
    to { opacity: 1; transform: translateY(0); }
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

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

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .main-title {
        font-size: 2.5rem;
    }
    
    .character-preview {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(3, 1fr);
    }
    
    .characters-grid {
        grid-template-columns: 1fr;
    }
    
    .experience-grid {
        grid-template-columns: 1fr;
    }
    
    .future-scenarios {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 200px;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .characters-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .character-item {
        padding: 1.5rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 3rem 0;
    }
}

/* アニメーション */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* インタラクション効果 */
.interactive-element {
    transition: all 0.3s ease;
}

.interactive-element:hover {
    transform: scale(1.05);
}

/* 日本語フォント最適化 */
.japanese-text {
    font-feature-settings: 'palt';
    font-kerning: auto;
    text-rendering: optimizeLegibility;
}

/* 印刷スタイル */
@media print {
    .navigation,
    .scroll-indicator,
    .experience-section,
    .footer {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .hero-section {
        background: white;
        color: black;
    }
}