/* ベーススタイル */
:root {
    --bg-color: #000000;
    --text-color: #ffffff;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-bg-hover: rgba(255, 255, 255, 0.08);
    --card-border: rgba(255, 255, 255, 0.1);
    --card-border-hover: rgba(102, 126, 234, 0.5);
    
    /* Brand Colors */
    --nintendo-color: #e60012;
    --ps-color: #006fcd;
    --sega-color: #0065bd;
    --xbox-color: #107c10;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-nintendo: linear-gradient(135deg, rgba(230, 0, 18, 0.2), rgba(255, 87, 87, 0.2));
    --gradient-ps: linear-gradient(135deg, rgba(0, 67, 156, 0.2), rgba(0, 149, 255, 0.2));
    
    /* Tags */
    --tag-home: #4a90e2;
    --tag-portable: #50e3c2;
    --tag-hybrid: #9013fe;
    --tag-unknown: #999;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 50px;
    
    /* Shadows */
    --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 40px rgba(102, 126, 234, 0.3);
    --shadow-glow: 0 0 20px currentColor;
}

body {
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* ヘッダー */
.site-header {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    padding: 1rem 0;
    margin-bottom: 2rem;
    position: relative;
    z-index: 10;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-header h1,
.site-header .site-title {
    margin: 0;
    font-size: 1.5rem;
}

.site-header h1 a,
.site-header .site-title a {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.site-header ul,
.site-header .main-nav {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}

.site-header a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.site-header a:hover {
    color: #fff;
}

.site-header a.active {
    border-bottom: 2px solid #667eea;
    color: #fff;
}

/* 共通コンポーネント */
.gradient-text {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xl);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.section-title:after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background: var(--gradient-primary);
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
}

/* ボタン共通スタイル */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.8rem 1.5rem;
    background: var(--gradient-primary);
    color: #fff;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.cta-button {
    display: inline-block;
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    font-weight: bold;
    color: #fff;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-xl);
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.cta-button:hover::before {
    width: 300px;
    height: 300px;
}

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

/* カード共通スタイル */
.info-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-4px);
    border-color: var(--card-border-hover);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
}

.info-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.info-card h3 {
    font-size: 1.2rem;
    margin: 0 0 8px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.info-card p {
    margin: 0 0 12px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.info-link {
    color: rgba(102, 126, 234, 1);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.info-link:hover {
    color: rgba(118, 75, 162, 1);
}

#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* ブランドセクション */
.brand-section {
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.brand-title {
    font-size: 2rem;
    padding-bottom: 10px;
    margin-bottom: 1.5rem;
    border-bottom: 3px solid rgba(255, 255, 255, 0.1);
    text-shadow: 0 0 20px currentColor;
}

.brand-title.nintendo {
    border-color: var(--nintendo-color);
    color: var(--nintendo-color);
}

.brand-title.playstation {
    border-color: var(--ps-color);
    color: var(--ps-color);
}

/* グリッドレイアウト */
.grid-container {
    display: grid;
    /* カードの最小幅を250pxとし、画面幅に合わせて自動で列数を調整 */
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

/* カードデザイン */
.card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.3);
    border-color: rgba(102, 126, 234, 0.5);
}

/* 画像プレースホルダー */
.card-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.3);
    font-weight: bold;
}

/* 実画像の表示最適化 */
.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.card-content {
    padding: 1.2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.console-name {
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
    font-weight: bold;
    line-height: 1.4;
    color: #fff;
}

.console-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.release-date {
    color: rgba(255, 255, 255, 0.6);
}

/* タグのスタイル */
.type-tag {
    padding: 4px 10px;
    border-radius: 20px;
    color: #fff;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
}

.type-tag.home {
    background-color: var(--tag-home);
}

.type-tag.portable {
    background-color: var(--tag-portable);
}

.type-tag.hybrid {
    background-color: var(--tag-hybrid);
}
.type-tag.unknown {
    background-color: var(--tag-unknown);
}

/* フッター */
.site-footer {
    text-align: center;
    padding: 2rem;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 4rem;
    color: rgba(255, 255, 255, 0.5);
    position: relative;
    z-index: 1;
}

/* レスポンシブ調整（スマホ向け） */
@media (max-width: 600px) {
    .site-header .container {
        flex-direction: column;
    }
    .site-header nav {
        margin-top: 10px;
    }
    .grid-container {
        grid-template-columns: 1fr 1fr; /* スマホ横などは2列 */
        gap: 15px;
    }
}
@media (max-width: 480px) {
    .grid-container {
        grid-template-columns: 1fr; /* 小さいスマホは1列 */
    }
}
/* Contact Page Styles */
.contact-hero {
    text-align: center;
    padding: 80px 20px 60px;
    max-width: 800px;
    margin: 0 auto;
}

.contact-hero .subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 20px;
}

.contact-section {
    padding: 40px 20px 80px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: start;
}

.contact-form {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
}

.required {
    color: #ff4757;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: #fff;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(102, 126, 234, 0.8);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-group {
    margin-bottom: 32px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-right: 8px;
    cursor: pointer;
}

.privacy-link {
    color: rgba(102, 126, 234, 1);
    text-decoration: none;
}

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

.submit-btn {
    width: 100%;
    padding: 16px 32px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
}

.submit-btn:active {
    transform: translateY(0);
}

.contact-info {
    display: grid;
    gap: 20px;
}

.info-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-4px);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
}

.info-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.info-card h3 {
    font-size: 1.2rem;
    margin: 0 0 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.info-card p {
    margin: 0 0 12px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.info-link {
    color: rgba(102, 126, 234, 1);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.info-link:hover {
    color: rgba(118, 75, 162, 1);
}

.faq-section {
    padding: 60px 20px;
    max-width: 900px;
    margin: 0 auto;
}

.faq-section .gradient-text {
    text-align: center;
    margin-bottom: 40px;
}

.faq-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(102, 126, 234, 0.3);
}

.faq-question {
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

.faq-question h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: 300;
    color: rgba(102, 126, 234, 1);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}

.faq-answer p {
    margin: 0;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .contact-container {
        grid-template-columns: 1fr;
    }
    .contact-form {
        padding: 24px;
    }
    .contact-hero {
        padding: 60px 20px 40px;
    }
    .contact-hero h2 {
        font-size: 2rem;
    }
    .faq-section {
        padding: 40px 20px;
    }
}
/* モーダルウィンドウ */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    background: linear-gradient(135deg, rgba(30, 30, 50, 0.95) 0%, rgba(40, 40, 60, 0.95) 100%);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 700px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.3s ease;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--card-border);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: color 0.3s ease;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: #fff;
}

.modal-body {
    padding: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

.modal-body h3 {
    font-size: 1.1rem;
    color: #fff;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    border-left: 3px solid var(--gradient-primary);
    padding-left: var(--spacing-sm);
}

.modal-body h3:first-child {
    margin-top: 0;
}

.modal-body p {
    margin-bottom: var(--spacing-sm);
}

.modal-body ul {
    margin: var(--spacing-sm) 0;
    padding-left: 2rem;
}

.modal-body li {
    margin-bottom: 0.5rem;
}

/* モーダルのスクロールバースタイル */
.modal-content::-webkit-scrollbar {
    width: 8px;
}

.modal-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.modal-content::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.5);
    border-radius: 4px;
}

.modal-content::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.8);
}

@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        max-height: 90vh;
    }

    .modal-header {
        padding: var(--spacing-md);
    }

    .modal-body {
        padding: var(--spacing-md);
    }
}