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

:root {
    --primary-color: #00C300;
    --primary-hover: #00A300;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --text-dark: #343a40;
    --text-light: #6c757d;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #dee2e6;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
    --border-radius: 8px;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-white);
}

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

/* モバイル専用非表示クラス */
@media (max-width: 768px) {
    .mobile-hidden {
        display: none !important;
    }
}

/* ヘッダー */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-dark);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

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

.admin-link {
    background: var(--secondary-color);
    color: white !important;
    font-size: 0.9rem;
}

.admin-link:hover {
    background: #545b62;
}

/* デスクトップ・モバイルナビゲーションの切り替え */
.desktop-nav {
    display: flex;
}

.mobile-nav {
    display: none;
}

.btn-mobile-contact {
    background: var(--primary-color) !important;
    color: white !important;
    font-weight: 600;
    padding: 0.7rem 1.5rem !important;
    border-radius: 25px;
}

.btn-mobile-contact:hover {
    background: var(--primary-hover) !important;
}

/* メインビジュアル */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--bg-light) 0%, #e9ecef 100%);
}

.func-hero {
    background: linear-gradient(135deg, #e3f2fd 0%, #f8f9fa 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.main-title {
    font-size: 3rem;
    font-weight: 900;
    color: var(--text-dark);
    display: block;
    margin-bottom: 0.5rem;
}

.sub-title {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    display: block;
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin: 1.5rem 0 0.5rem;
    font-weight: 600;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.hero-features {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    font-weight: 500;
    font-size: 0.9rem;
}

.feature-item i {
    color: var(--primary-color);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.btn-secondary:hover {
    background: var(--bg-light);
    border-color: var(--primary-color);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.bot-illustration {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--primary-color), #00d4aa);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 20px 40px rgba(0, 195, 0, 0.3);
    animation: float 3s ease-in-out infinite;
}

.func-illustration {
    background: linear-gradient(135deg, #2196f3, #21cbf3);
    box-shadow: 0 20px 40px rgba(33, 150, 243, 0.3);
}

.bot-illustration i {
    font-size: 8rem;
    color: white;
}

/* モバイル用小さいアイコン */
.mobile-icon {
    display: none;
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    border-radius: 50%;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow);
}

.mobile-icon i {
    font-size: 2rem;
    color: white;
}

/* セクション共通 */
section {
    padding: 60px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* パフォーマンス */
.performance {
    background: var(--bg-light);
}

.performance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.performance-card {
    background: var(--bg-white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s ease;
}

.performance-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.performance-icon {
    margin-bottom: 1rem;
}

.performance-icon i {
    font-size: 3rem;
    color: var(--primary-color);
}

.performance-value {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.performance-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.performance-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 基本機能セクション */
.features {
    background: var(--bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card.important {
    border-left: 4px solid var(--primary-color);
    background: linear-gradient(135deg, #f8fff8, #ffffff);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1rem;
}

.feature-icon i {
    font-size: 1.3rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 0.6rem;
    margin-bottom: 0.3rem;
    background: linear-gradient(135deg, #e8f5e8, #f8fff8);
    border-radius: 4px;
    border-left: 3px solid var(--success-color);
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.4;
}

/* 機能ボタンのスタイル */
.feature-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

/* 詳細機能セクション */
.detailed-features-page {
    background: var(--bg-white);
    padding: 60px 0;
}

.detailed-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.detailed-card {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.detailed-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    line-height: 1.3;
}

.detailed-card h3 i {
    color: var(--primary-color);
}

.command-list, .protection-list {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.command-item, .protection-item {
    padding: 0.6rem;
    background: linear-gradient(135deg, var(--bg-light), #ffffff);
    border-radius: 4px;
    border-left: 3px solid var(--primary-color);
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    color: var(--text-light);
    line-height: 1.3;
}

.protection-item {
    font-family: inherit;
}

/* 注意事項 */
.warning {
    background: #fff3cd;
    border-top: 4px solid var(--warning-color);
}

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

.warning-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--warning-color);
}

.warning-icon {
    margin-bottom: 1rem;
}

.warning-icon i {
    font-size: 2rem;
    color: var(--warning-color);
}

.warning-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.warning-card ul {
    list-style: none;
    padding-left: 0;
}

.warning-card li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.warning-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--warning-color);
    font-weight: bold;
}

/* お問い合わせ */
.contact {
    background: var(--bg-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.creator-info h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.creator-info p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-feature {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-feature i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.contact-form {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.contact-form p {
    margin-bottom: 2rem;
    color: var(--text-light);
    line-height: 1.7;
}

.contact-btn {
    font-size: 1.1rem;
    padding: 1.2rem 2.5rem;
}

/* 管理人ログイン */
.admin {
    background: var(--bg-light);
    padding: 20px 0;
    border-top: 1px solid var(--border-color);
}

.admin-login {
    text-align: center;
}

.admin-login h4 {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.admin-btn {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    transition: all 0.3s ease;
}

.admin-btn:hover {
    background: #545b62;
    transform: translateY(-1px);
}

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

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

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.footer-description {
    color: #adb5bd;
    margin-top: 1rem;
}

.footer-center .footer-links h4,
.footer-right .footer-contact h4 {
    margin-bottom: 1rem;
    color: white;
    font-weight: 600;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a,
.footer-contact a {
    color: #adb5bd;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--primary-color);
}

.footer-contact i {
    margin-right: 0.5rem;
}

.footer-contact p {
    margin-bottom: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid #495057;
    padding-top: 1rem;
    text-align: center;
    color: #adb5bd;
    font-size: 0.9rem;
}

/* アニメーション */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* レスポンシブ */
@media (max-width: 768px) {
    /* ナビゲーションの切り替え */
    .desktop-nav {
        display: none;
    }
    
    .mobile-nav {
        display: flex;
    }
    
    /* モバイルでは大きい演出を隠して小さいアイコンを表示 */
    .bot-illustration {
        display: none;
    }
    
    .mobile-icon {
        display: flex;
    }
    
    /* ヘッダーの最適化 */
    .header-content {
        padding: 0.8rem 0;
    }
    
    .logo-text {
        font-size: 1.3rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    /* ヒーローセクションの最適化 */
    .hero {
        padding: 90px 0 40px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        text-align: center;
    }
    
    .main-title {
        font-size: 2.2rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
        margin: 1rem 0 0.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-features {
        justify-content: center;
        gap: 0.5rem;
    }
    
    .feature-item {
        padding: 0.4rem 0.7rem;
        font-size: 0.75rem;
    }
    
    .hero-buttons {
        gap: 0.8rem;
        margin-top: 1rem;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    /* セクションのパディング調整 */
    section {
        padding: 40px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 0.8rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    /* パフォーマンスカードの最適化 */
    .performance-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }
    
    .performance-card {
        padding: 1.8rem 1.2rem;
    }
    
    .performance-value {
        font-size: 2.2rem;
    }
    
    .performance-card h3 {
        font-size: 1.1rem;
    }
    
    .performance-card p {
        font-size: 0.9rem;
    }
    
    /* 機能カードの最適化 */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .feature-card {
        padding: 1rem;
    }
    
    .feature-icon {
        width: 40px;
        height: 40px;
        margin-bottom: 0.8rem;
    }
    
    .feature-icon i {
        font-size: 1.1rem;
    }
    
    .feature-card h3 {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }
    
    .feature-list li {
        font-size: 0.75rem;
        padding: 0.4rem;
        margin-bottom: 0.2rem;
        line-height: 1.3;
    }
    
    /* 注意事項の最適化 */
    .warning {
        padding: 30px 0;
    }
    
    .warning-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }
    
    .warning-card {
        padding: 1.5rem;
    }
    
    .warning-card h3 {
        font-size: 1.1rem;
    }
    
    .warning-card li {
        font-size: 0.85rem;
    }
    
    /* お問い合わせの最適化 */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .creator-info h3 {
        font-size: 1.6rem;
    }
    
    .creator-info p {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .contact-feature {
        gap: 0.8rem;
    }
    
    .contact-feature span {
        font-size: 0.9rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    .contact-form h3 {
        font-size: 1.3rem;
    }
    
    .contact-form p {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
        line-height: 1.6;
    }
    
    .contact-btn {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
    
    /* 詳細機能の最適化 */
    .detailed-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .detailed-card {
        padding: 1rem;
    }
    
    .detailed-card h3 {
        font-size: 0.95rem;
        margin-bottom: 0.8rem;
    }
    
    .command-item, .protection-item {
        font-size: 0.7rem;
        padding: 0.4rem;
        line-height: 1.2;
    }
    
    /* フッターの最適化 */
    .footer {
        padding: 2rem 0 1rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-logo span {
        font-size: 1.3rem;
    }
    
    .footer-description {
        font-size: 0.9rem;
        margin-top: 0.8rem;
    }
    
    .footer-links h4,
    .footer-contact h4 {
        font-size: 1.1rem;
        margin-bottom: 0.8rem;
    }
    
    .footer-links ul {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
        margin-bottom: 1rem;
    }
    
    .footer-links li {
        margin-bottom: 0.3rem;
    }
    
    .footer-links a,
    .footer-contact a {
        font-size: 0.9rem;
        display: block;
        padding: 0.3rem;
    }
    
    .footer-contact p {
        margin-bottom: 0.8rem;
    }
    
    .footer-bottom {
        padding-top: 1.5rem;
        margin-top: 1.5rem;
        font-size: 0.8rem;
    }
    
    /* ボタンの最適化 */
    .feature-buttons {
        flex-direction: column;
        align-items: center;
        margin-top: 2rem;
    }
    
    .feature-buttons .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    /* 管理人ログインの最適化 */
    .admin {
        padding: 15px 0;
    }
    
    .admin-login h4 {
        font-size: 0.8rem;
    }
    
    .admin-btn {
        font-size: 0.75rem;
        padding: 0.3rem 0.8rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .main-title {
        font-size: 1.9rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
    }
    
    .feature-item {
        padding: 0.3rem 0.5rem;
        font-size: 0.7rem;
    }
    
    .btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.85rem;
    }
    
    .performance-value {
        font-size: 2rem;
    }
    
    .footer-links ul {
        grid-template-columns: 1fr;
        gap: 0.3rem;
    }
    
    .footer-links a,
    .footer-contact a {
        font-size: 0.85rem;
    }
}

/* スムーススクロール */
html {
    scroll-behavior: smooth;
}