/* ============================================
   リセットと基本設定
   ============================================ */
   * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* ロゴの3色をアクセントカラーとして定義 */
    --color-primary: #1976d2;    /* ブルー */
    --color-secondary: #e91e63;  /* ピンク */
    --color-accent: #8bc34a;     /* グリーン */
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-border: #e0e0e0;
    --font-main: 'Helvetica Neue', 'Arial', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Meiryo', sans-serif;
    --max-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--color-text);
    line-height: 1.7;
    background-color: var(--color-bg);
}

/* ============================================
   共通要素
   ============================================ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.3s ease;
}

/* ============================================
   ヘッダーとナビゲーション
   ============================================ */
header {
    background-color: var(--color-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: var(--spacing-sm) 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 45px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-menu a {
    font-weight: 500;
    color: var(--color-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-primary);
    background-color: rgba(25, 118, 210, 0.05);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-text);
    transition: all 0.3s ease;
}

/* ============================================
   フラッシュメッセージ
   ============================================ */
.flash-messages {
    position: fixed;
    top: 80px;
    right: var(--spacing-md);
    z-index: 2000;
    max-width: 400px;
}

.alert {
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    animation: slideIn 0.3s ease;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid #28a745;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid #dc3545;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ============================================
   ヒーローセクション
   ============================================ */
.hero {
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.05) 0%, rgba(233, 30, 99, 0.05) 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   ボタン
   ============================================ */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: #1565c0;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(25, 118, 210, 0.3);
}

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

.btn-secondary:hover {
    background-color: #c2185b;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(233, 30, 99, 0.3);
}

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

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

.btn-large {
    padding: 1rem 3rem;
    font-size: 1.125rem;
}

/* ============================================
   セクション共通
   ============================================ */
section {
    padding: var(--spacing-xl) 0;
}

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

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
}

.subsection-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

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

/* ============================================
   サービスプレビュー
   ============================================ */
.services-preview {
    background-color: var(--color-bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.service-card {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.service-image-placeholder {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.1), rgba(233, 30, 99, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    font-size: 1.125rem;
}

.service-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin: var(--spacing-md) var(--spacing-md) var(--spacing-sm);
}

.service-description {
    color: var(--color-text-light);
    margin: 0 var(--spacing-md) var(--spacing-md);
    line-height: 1.7;
}

.service-link {
    display: inline-block;
    color: var(--color-primary);
    font-weight: 600;
    margin: 0 var(--spacing-md) var(--spacing-md);
    transition: all 0.3s ease;
}

.service-link:hover {
    color: var(--color-secondary);
    transform: translateX(5px);
}

/* ============================================
   お知らせプレビュー
   ============================================ */
.news-list {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.news-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.news-item:hover {
    background-color: var(--color-bg-light);
    padding-left: var(--spacing-sm);
}

.news-date {
    color: var(--color-text-light);
    font-size: 0.875rem;
    min-width: 100px;
}

.news-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
}

/* ============================================
   ページヘッダー
   ============================================ */
.page-header {
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.05) 0%, rgba(233, 30, 99, 0.05) 100%);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
}

/* ============================================
   会社概要
   ============================================ */
.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.info-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
}

.info-table tr {
    border-bottom: 1px solid var(--color-border);
}

.info-table th,
.info-table td {
    padding: var(--spacing-md);
    text-align: left;
}

.info-table th {
    background-color: var(--color-bg-light);
    font-weight: 600;
    width: 30%;
    color: var(--color-text);
}

.info-table td {
    color: var(--color-text-light);
}

.business-list {
    list-style: none;
    padding-left: 0;
}

.business-list li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
}

.business-list li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

.company-message {
    background-color: var(--color-bg-light);
    padding: var(--spacing-lg);
    border-radius: 12px;
    margin-top: var(--spacing-lg);
}

.company-message p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.company-message p:last-child {
    margin-bottom: 0;
}

/* ============================================
   サービス詳細
   ============================================ */
.service-detail {
    background-color: var(--color-bg-light);
}

.service-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    margin-bottom: var(--spacing-xl);
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: 12px;
}

.service-item-reverse {
    grid-template-columns: 1fr 1fr;
}

.service-item-reverse .service-detail-image {
    order: 2;
}

.service-item-reverse .service-detail-content {
    order: 1;
}

.service-detail-image .image-placeholder {
    width: 100%;
    height: 350px;
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.1), rgba(233, 30, 99, 0.1));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    font-size: 1.125rem;
}

.service-detail-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.service-detail-description {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.service-features {
    margin-top: var(--spacing-md);
}

.service-features h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.service-features ul {
    list-style: none;
    padding-left: 0;
}

.service-features ul li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-light);
}

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

/* ============================================
   CTA セクション
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-description {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

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

.cta-section .btn-primary:hover {
    background-color: var(--color-bg-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.3);
}

/* ============================================
   お知らせリスト
   ============================================ */
.news-list-page {
    max-width: 900px;
    margin: 0 auto;
}

.news-detail-item {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: 12px;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.news-detail-item:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.news-detail-date {
    display: inline-block;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.news-detail-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.news-detail-excerpt {
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ============================================
   採用情報
   ============================================ */
.recruit-content {
    max-width: 1000px;
    margin: 0 auto;
}

.recruit-message {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.recruit-message p {
    color: var(--color-text-light);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.position-card {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: var(--spacing-lg);
}

.position-image-placeholder {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.1), rgba(139, 195, 74, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    font-size: 1.125rem;
}

.position-content {
    padding: var(--spacing-lg);
}

.position-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.position-details h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.position-details p {
    color: var(--color-text-light);
    line-height: 1.8;
}

.position-details ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: var(--spacing-md);
}

.position-details ul li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-light);
}

.position-details ul li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.recruit-cta {
    text-align: center;
    background-color: var(--color-bg-light);
    padding: var(--spacing-lg);
    border-radius: 12px;
    margin-top: var(--spacing-xl);
}

.recruit-cta p {
    color: var(--color-text-light);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

/* ============================================
   お問合せフォーム
   ============================================ */
.contact-content {
    max-width: 700px;
    margin: 0 auto;
}

.contact-intro {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.contact-intro p {
    color: var(--color-text-light);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.contact-form {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    font-size: 0.9375rem;
}

.required {
    color: var(--color-secondary);
    margin-left: var(--spacing-xs);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 150px;
}

.form-submit {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* ============================================
   フッター
   ============================================ */
footer {
    background-color: var(--color-text);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.footer-logo img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}

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

.footer-info p {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* ============================================
   レスポンシブ対応
   ============================================ */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }
    
    /* ナビゲーション */
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        display: none;
        gap: 0;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu a {
        display: block;
        padding: var(--spacing-sm);
    }
    
    /* ヒーロー */
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    /* セクション */
    .section-title {
        font-size: 1.75rem;
    }
    
    .subsection-title {
        font-size: 1.5rem;
    }
    
    /* サービス */
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-item,
    .service-item-reverse {
        grid-template-columns: 1fr;
    }
    
    .service-item-reverse .service-detail-image,
    .service-item-reverse .service-detail-content {
        order: initial;
    }
    
    /* お知らせ */
    .news-item {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .news-date {
        min-width: auto;
    }
    
    /* テーブル */
    .info-table th,
    .info-table td {
        display: block;
        width: 100%;
    }
    
    .info-table th {
        padding-bottom: var(--spacing-xs);
    }
    
    .info-table td {
        padding-top: var(--spacing-xs);
        padding-bottom: var(--spacing-md);
    }
    
    /* フラッシュメッセージ */
    .flash-messages {
        left: var(--spacing-sm);
        right: var(--spacing-sm);
        max-width: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9375rem;
    }
}