/* モダンデザイン用スタイルシート */

/* CSS変数定義 */
:root {
    --color-primary: #2196F3;      /* メインのブルー */
    --color-primary-dark: #1976D2; /* 濃いブルー */
    --color-primary-light: #BBDEFB; /* 薄いブルー */
    --color-secondary: #607D8B;     /* グレーブルー */
    --color-accent: #00BCD4;        /* アクセントカラー（シアン） */
    --color-text: #212121;          /* テキスト色 */
    --color-text-light: #757575;    /* 薄いテキスト色 */
    --color-bg: #FFFFFF;            /* 背景色 */
    --color-bg-light: #F5F5F5;      /* 薄い背景色 */
    --color-border: #E0E0E0;        /* ボーダー色 */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 基本スタイル */
body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--color-text);
    line-height: 1.7;
    background: var(--color-bg);
}

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

/* ヒーローセクション */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-light) 100%);
}

.hero-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    z-index: 2;
}

.hero-title {
    margin-bottom: 24px;
}

.hero-title-main {
    display: block;
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title-sub {
    display: block;
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
}

.hero-description {
    font-size: 18px;
    color: var(--color-text-light);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* ボタンスタイル */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    background: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    background: transparent;
    color: var(--color-primary);
    text-decoration: none;
    border: 2px solid var(--color-primary);
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
}

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

.btn-large {
    padding: 20px 40px;
    font-size: 18px;
}

.btn-text {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
}

.btn-text:hover {
    color: var(--color-primary-dark);
    transform: translateX(4px);
}

/* ヒーロースライダー */
.hero-visual {
    position: relative;
    height: 600px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide-item {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide-item.active {
    opacity: 1;
}

.slide-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.slider-dot.active {
    background: white;
    width: 32px;
    border-radius: 6px;
}

/* セクション共通 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-text-light);
}

/* サービスセクション */
.services-section {
    padding: 100px 0;
    background: var(--color-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.service-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.service-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.service-card:hover .service-image img {
    transform: scale(1.1);
}

.service-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.3) 100%);
    display: flex;
    align-items: flex-end;
    padding: 20px;
}

.service-number {
    font-size: 48px;
    font-weight: 800;
    color: white;
    opacity: 0.9;
}

.service-content {
    padding: 32px;
}

.service-title {
    margin-bottom: 16px;
}

.service-en {
    display: block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.service-ja {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
}

.service-description {
    color: var(--color-text-light);
    margin-bottom: 24px;
    line-height: 1.8;
}

.service-features {
    list-style: none;
    padding: 0;
    margin-bottom: 24px;
}

.service-features li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    color: var(--color-text-light);
}

.service-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.service-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: var(--transition);
}

.service-link:hover {
    color: var(--color-primary-dark);
    transform: translateX(4px);
}

/* 強みセクション */
.strengths-section {
    padding: 100px 0;
    background: var(--color-bg-light);
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.strength-item {
    text-align: center;
    padding: 40px 20px;
    background: white;
    border-radius: 16px;
    transition: var(--transition);
}

.strength-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.strength-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: 50%;
    margin-bottom: 24px;
    color: white;
}

.strength-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
}

.strength-description {
    color: var(--color-text-light);
    line-height: 1.8;
}

/* 制作実績セクション */
.works-section {
    padding: 100px 0;
    background: var(--color-bg);
}

.works-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 24px;
    background: transparent;
    border: 2px solid var(--color-border);
    border-radius: 50px;
    color: var(--color-text-light);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.work-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: white;
    transition: var(--transition);
}

.work-link {
    display: block;
    text-decoration: none;
}

.work-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.work-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.work-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    opacity: 0;
    transition: var(--transition);
}

.work-item:hover .work-overlay {
    opacity: 1;
}

.work-item:hover .work-image img {
    transform: scale(1.1);
}

.work-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-primary);
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: 8px;
    width: fit-content;
}

.work-title {
    color: white;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.work-more {
    color: white;
    font-size: 14px;
    opacity: 0.9;
}

.works-footer {
    text-align: center;
}

/* ニュースセクション */
.news-section {
    padding: 100px 0;
    background: var(--color-bg-light);
}

.news-list {
    max-width: 800px;
    margin: 0 auto 40px;
}

.news-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

.news-item:hover {
    background: rgba(33, 150, 243, 0.05);
    padding-left: 20px;
    margin-left: -20px;
    padding-right: 20px;
    margin-right: -20px;
}

.news-date {
    font-size: 14px;
    color: var(--color-text-light);
    min-width: 100px;
}

.news-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
}

.news-title {
    flex: 1;
    margin: 0;
}

.news-title a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.news-title a:hover {
    color: var(--color-primary);
}

.news-footer {
    text-align: center;
}

/* CTAセクション */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-description {
    font-size: 20px;
    opacity: 0.95;
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

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

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

.cta-section .btn-secondary {
    border-color: white;
    color: white;
}

.cta-section .btn-secondary:hover {
    background: white;
    color: var(--color-primary);
}

.cta-section .btn-secondary svg {
    margin-right: 8px;
}

.cta-note {
    font-size: 14px;
    opacity: 0.8;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        padding: 0 20px;
    }
    
    .hero-visual {
        height: 400px;
    }
    
    .services-grid,
    .works-grid {
        grid-template-columns: 1fr;
    }
    
    .strengths-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .news-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .hero-buttons,
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
    }
    
    .pc-only {
        display: none;
    }
}

@media (min-width: 769px) {
    .sp-only {
        display: none;
    }
}