/* -------------------------------------- */
/* CSS Variable and Base Styles */
/* -------------------------------------- */
:root {
    /* 事業所色（藤色） R:186 G:167 B:204 */
    --color-main: #baa7cc; 
    /* グループ色②（濃いグレー） R:26 G:26 B:26 */
    --color-text: #1a1a1a; 
    /* グループ色③（ほぼ白） R:249 G:249 B:249 */
    --color-bg: #f9f9f9;    
    /* グループ色①（シアン） R:0 G:240 B:255 - グループ関連のみ使用 */
    --color-accent-group: #00f0ff; 

    --font-family-base: 'Noto Sans JP', sans-serif;
}

body {
    font-family: var(--font-family-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    margin: 0;
    padding: 0;
    scroll-behavior: smooth;
}

a {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: var(--color-main);
}

/* -------------------------------------- */
/* Layout & Sections */
/* -------------------------------------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 60px;
    display: inline-block;
    border-bottom: 4px solid var(--color-main);
    padding-bottom: 5px;
    color: var(--color-text);
}

/* -------------------------------------- */
/* Header & Navigation */
/* -------------------------------------- */
header {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

header nav a {
    margin-left: 30px;
    font-weight: 600;
    padding: 5px 0; /* タッチ領域の確保 */
}

/* ロゴのスタイル */
.logo img {
    height: 40px; /* fujinoki メインロゴ.pngのサイズに合わせる */
    width: auto;
}

/* -------------------------------------- */
/* Hero Section */
/* -------------------------------------- */
.hero {
    background-color: var(--color-main);
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 120px 0;
    position: relative;
    border-radius: 0 0 20px 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    /* bg-fukushi.pngの画像が表示されるよう背景画像設定の確認を推奨 */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.3); /* 画像bg-fukushi.jpgの上に重ねる半透明のオーバーレイ */
    border-radius: 0 0 20px 20px;
}

.hero-content {
    position: relative;
    z-index: 10;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
}

/* -------------------------------------- */
/* CTA Button (メインアクションボタン) */
/* -------------------------------------- */
.cta-button {
    display: inline-block;
    background-color: var(--color-main);
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: all 0.3s;
    white-space: nowrap; /* ボタン内のテキスト折り返し防止 */
}

.cta-button:hover {
    background-color: #a08fc1; /* 少し濃い藤色 */
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

/* -------------------------------------- */
/* About Section */
/* -------------------------------------- */
.about-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.about-content h3 {
    font-size: 1.8rem;
    color: var(--color-main);
    margin-bottom: 20px;
}

.about-text.full-width-content {
    flex: 1; /* 100%幅を取るように調整 */
}

/* -------------------------------------- */
/* Service Flow Section */
/* -------------------------------------- */
.service-flow-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.flow-item {
    text-align: center;
    padding: 25px;
    background-color: white;
    border-radius: 15px;
    border: 1px solid #e0e0e0;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.flow-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-main);
}

.flow-step-number {
    display: inline-block;
    background-color: var(--color-main);
    color: white;
    width: 40px;
    height: 40px;
    line-height: 40px;
    border-radius: 50%;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.flow-item h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 10px;
}

/* -------------------------------------- */
/* Details Section (事業内容集約) */
/* -------------------------------------- */
#details {
    background-color: white;
}

.office-details-container {
    display: flex;
    gap: 40px;
}

.office-details {
    flex: 1;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    background-color: var(--color-bg);
}

.office-details h3 {
    font-size: 1.5rem;
    color: var(--color-main);
    margin-bottom: 25px;
    border-bottom: 2px solid var(--color-main);
    padding-bottom: 5px;
    display: inline-block;
}

.office-details dl {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 15px 15px;
    line-height: 1.5;
}

.office-details dt {
    font-weight: 600;
    color: var(--color-text);
}

.map-placeholder {
    flex: 1;
    background-color: #e9e9e9;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    overflow: hidden;
    color: #555;
    text-align: center;
}

/* -------------------------------------- */
/* Contact Section */
/* -------------------------------------- */
.contact {
    background-color: var(--color-text); /* グループ色② (濃いグレー) を使用 */
    color: white;
    text-align: center;
}

.contact h2 {
    color: white;
    border-bottom-color: white;
}

.contact-actions {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    padding: 15px 35px;
    border-radius: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    transition: background-color 0.3s, transform 0.3s;
}

.contact-button.phone {
    background-color: var(--color-main);
    color: white;
}

.contact-button.phone:hover {
    background-color: #a08fc1;
    transform: scale(1.05);
}

.contact-button.mail {
    border: 2px solid white;
    color: white;
    background: transparent;
}

.contact-button.mail:hover {
    background-color: white;
    color: var(--color-text);
}

.contact-button svg {
    margin-right: 10px;
    width: 28px;
    height: 28px;
}

/* -------------------------------------- */
/* Footer */
/* -------------------------------------- */
footer {
    background-color: white;
    padding: 40px 0 20px;
    border-top: 5px solid var(--color-main);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-section {
    min-width: 200px;
}

.footer-section h5 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-main);
    margin-bottom: 10px;
}

.footer-nav ul, .footer-info ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-nav li a:hover {
    text-decoration: underline;
}

.copyright {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
    font-size: 0.85rem;
    color: #555;
}

/* Doiグループロゴ (group-logo-2.png)の表示 */
.doi-group-info {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px dashed #ccc;
}

.doi-group-info img {
    height: 20px;
    width: auto;
    /* グループ色① (シアン) の使用を避けるため、ロゴはモノクロ画像 (group-logo-2.png) を使用することを想定 */
}

.doi-group-info p {
    font-size: 0.75rem;
    color: #888;
    margin-top: 5px;
}

/* -------------------------------------- */
/* Media Queries (Responsive Design) */
/* -------------------------------------- */
@media (max-width: 900px) {
    .about-content {
        /* 特長セクションは元々2カラムだったが、office-info削除で1カラムになったため flex: 1 で対応 */
        flex-direction: column;
    }
    .about-text, .office-details {
        width: 100%;
    }
    .office-details-container {
        flex-direction: column;
    }
    .office-details, .map-placeholder {
        width: 100%;
        min-height: 300px;
    }
    .office-details {
        margin-bottom: 20px;
    }
    .footer-content {
        justify-content: center;
        text-align: center;
    }
    .footer-section {
        margin-bottom: 20px;
    }
    .footer-nav ul, .footer-info ul {
        display: flex;
        justify-content: center;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    header nav {
        display: none; /* モバイル時はメニューを非表示（JSでハンバーガーメニューを実装する想定） */
    }
    .hero h1 {
        font-size: 2rem;
    }
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 40px;
    }
    .contact-actions {
        flex-direction: column;
        gap: 20px;
    }
    .contact-button {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
}