/* モダンなデザインの追加スタイル - プロダクトデザイン事務所向け */

/* フォントの設定は元のフォントを維持 */

:root {
    /* カラーパレットの洗練 */
    --primary-color: #000;
    --secondary-color: #333;
    --accent-color: #f5f5f5;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #fff;
    --bg-light: #f8f8f8;
    --border-color: #e0e0e0;
    --success-color: #4caf50;
    --error-color: #f44336;
    --warning-color: #ff9800;
    --info-color: #2196f3;
    
    /* レイアウト変数 */
    --header-height: 80px;
    --footer-height: 80px;
    --section-spacing: 100px;
    --component-spacing: 60px;
    --element-spacing: 30px;
    --grid-gap: 30px;
    
    /* アニメーション */
    --transition-fast: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    
    /* ボックスシャドウ */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    /* ボーダーラディウス */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;
}

/* ベーススタイル */
body {
    color: var(--text-color);
    background-color: var(--bg-color);
    font-size: 16px;
    line-height: 1.7;
    letter-spacing: 0.02em;
    padding-top: var(--header-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 改良されたタイポグラフィ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.8em;
    letter-spacing: -0.01em;
}

h1 { 
    font-size: 3.5rem; 
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0;
}

h2 { 
    font-size: 2.5rem; 
    font-weight: 600;
}

h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

/* 段落のスタイル改善 */
p {
    margin-bottom: 1.5em;
    color: var(--text-color);
}

a {
    color: var(--primary-color);
    transition: var(--transition-fast);
    text-decoration: none;
}

a:hover {
    opacity: 0.8;
}

/* コンテナの改善 */
.container {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0 60px;
}

/* セクションの改善 */
.section {
    padding: var(--section-spacing) 0;
    padding-top: 30px;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    font-size: 2.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    margin: 20px auto 0;
}

.section-description {
    text-align: center;
    max-width: 800px;
    margin: -40px auto 60px;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
}

/* ヘッダースタイルは元のまま使用する */

/* ヒーローセクションの改善 */
.hero {
    height: 75vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    text-align: center;
    overflow: hidden;
}

.hero-parallax {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    z-index: 0;
    filter: brightness(0.9);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.7));
    z-index: 1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    padding: 0 30px;
    z-index: 2;
    color: #fff;
    position: relative;
    margin: 0 auto;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 30px;
    letter-spacing: -0.01em;
    text-transform: uppercase;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-description {
    font-size: 1.3rem;
    margin-bottom: 40px;
    line-height: 1.8;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
}

.hero-btn {
    display: inline-block;
    padding: 15px 35px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.hero-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: var(--transition-fast);
    z-index: -1;
}

.hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    opacity: 1;
}

.hero-btn:hover::before {
    width: 100%;
}

/* 製品カードの改善 */
.product-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    background-color: var(--bg-color);
    transition: var(--transition);
}

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

.product-image {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.product-image::before {
    content: '';
    display: block;
    padding-top: 75%; /* 4:3のアスペクト比 */
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.08);
}

.product-info {
    padding: 25px;
    background-color: var(--bg-color);
}

.product-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.product-category {
    font-size: 0.85rem;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
    font-weight: 600;
    display: inline-block;
}

.product-excerpt {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.6;
}

/* フッターの改善 */
.site-footer {
    background-color: var(--primary-color);
    color: white;
    padding: 24px 0 20px;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-column {
    display: flex;
    flex-direction: column;
}

.footer-column h4 {
    font-size: 1.2rem;
    margin-bottom: 25px;
    color: white;
    position: relative;
    padding-bottom: 15px;
}

.footer-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: white;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-social {
    display: flex;
    margin-top: 20px;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.1);
    margin-right: 12px;
    transition: var(--transition-fast);
}

.footer-social a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 50px;
    margin-top: 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright, .copyright p {
    font-size: 0.9rem;
    color: rgb(255, 255, 255);
    text-align: center;
}

/* ユーティリティクラス */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-1 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2 { padding-top: 1rem; padding-bottom: 1rem; }
.py-3 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-4 { padding-top: 2rem; padding-bottom: 2rem; }
.py-5 { padding-top: 3rem; padding-bottom: 3rem; }

.px-0 { padding-left: 0; padding-right: 0; }
.px-1 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-2 { padding-left: 1rem; padding-right: 1rem; }
.px-3 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-4 { padding-left: 2rem; padding-right: 2rem; }
.px-5 { padding-left: 3rem; padding-right: 3rem; }

/* アニメーション */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* レスポンシブ調整 */
@media (max-width: 1200px) {
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .section-title {
        font-size: 2.4rem;
    }
}

@media (max-width: 992px) {
    :root {
        --section-spacing: 80px;
        --component-spacing: 50px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.2rem;
        margin-bottom: 50px;
    }
    
    .hero {
        min-height: 500px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
        --section-spacing: 60px;
    }
    
    body {
        font-size: 15px;
    }
    
    .container {
        padding: 0 30px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 40px;
    }
    
    .hero {
        min-height: 400px;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 576px) {
    :root {
        --section-spacing: 50px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 30px;
    }
}