/* --- グローバル・基本デザイン --- */
:root {
    --primary-color: #ffffff; /* 白 */
    --secondary-color: #f8f9fa; /* 明るいグレー */
    --accent-color: #0056b3; /* 落ち着いたコーポレート・ブルー */
    --text-color: #343a40; /* 濃いグレーのテキスト */
    --text-muted-color: #6c757d; /* やや薄いグレーのテキスト */
    --background-color: #ffffff;
    --font-family: 'Poppins', sans-serif;
    --border-color: #dee2e6;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-family);
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
h1, h2, h3, h4 { font-weight: 600; line-height: 1.2; margin-bottom: 1rem; color: var(--text-color); }
h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.1rem; color: var(--text-color); margin-top: 1.5rem; }
p { margin-bottom: 1rem; color: var(--text-muted-color); }
a { text-decoration: none; color: var(--accent-color); transition: color 0.3s ease; }
a:hover { color: #003d82; }
ul { list-style-position: inside; padding-left: 5px; }
li { margin-bottom: 0.5rem; }
section { padding: 100px 0; border-bottom: 1px solid var(--border-color); }
.bg-light { background-color: var(--secondary-color); }
.section-header { text-align: center; max-width: 750px; margin: 0 auto; margin-bottom: 4rem; }
.accent-text { color: var(--accent-color); }

/* --- ヘッダー & ナビゲーション --- */
header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky; top: 0; z-index: 100;
}
header .container { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo { font-size: 1.8rem; font-weight: 700; color: var(--text-color); }
nav ul { list-style: none; display: flex; }
nav ul li { margin-left: 30px; }
nav ul li a { color: var(--text-muted-color); font-weight: 500; transition: color 0.3s ease; padding-bottom: 5px; border-bottom: 2px solid transparent; }
nav ul li a:hover, nav ul li a.active { color: var(--accent-color); border-bottom-color: var(--accent-color); }

/* --- ボタン --- */
.btn {
    display: inline-block;
    background: var(--accent-color);
    color: #fff;
    padding: 14px 30px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 4px 15px rgba(0, 86, 179, 0.2);
}
.btn:hover { background: #003d82; transform: translateY(-3px); box-shadow: 0 6px 20px rgba(0, 86, 179, 0.3); }

/* --- ヒーローセクション --- */
.hero { text-align: center; padding: 120px 0; background: var(--secondary-color); position: relative; }
.hero h1 { font-size: 4.5rem; letter-spacing: -2px; }
.hero p { max-width: 650px; margin: 1.5rem auto 2.5rem; font-size: 1.1rem; }

/* --- 信頼ブランド --- */
.trusted-by { padding: 40px 0; background: #fff; }
.trusted-by .container { text-align: center; }
.trusted-by h6 { font-weight: 500; color: var(--text-muted-color); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 1.5rem; }
.logos { display: flex; justify-content: space-around; align-items: center; flex-wrap: wrap; }
.logos span { font-size: 1.3rem; font-weight: 500; color: #aaa; margin: 10px 20px; transition: color 0.3s ease; }
.logos span:hover { color: var(--text-color); }

/* --- リーダーシップスライダー --- */
.leadership-slider.swiper-container { 
    position: relative;
    width: 100%; 
    max-width: 500px;
    margin: 0 auto; 
    padding: 20px 0 60px;
    overflow: hidden;
}
.swiper-slide { display: flex; justify-content: center; align-items: center; }
.team-member-card { text-align: center; min-height: 420px; display: flex; flex-direction: column; align-items: center; padding: 0 15px; }
.team-member-card img { width: 150px; height: 150px; border-radius: 50%; object-fit: cover; margin-bottom: 1.5rem; border: 4px solid var(--accent-color); }
.team-member-card .title { color: var(--accent-color); font-weight: 600; margin-bottom: 1rem; }
.team-member-card .bio { font-size: 0.95rem; }
.leadership-slider .swiper-pagination-bullet-active { background: var(--accent-color) !important; }
.leadership-slider .swiper-button-next, .leadership-slider .swiper-button-prev {
    color: var(--accent-color) !important;
    transition: color 0.3s ease;
    --swiper-navigation-size: 30px;
}
.leadership-slider .swiper-button-next:hover, .leadership-slider .swiper-button-prev:hover { color: var(--text-color) !important; }

/* --- Our DNA セクション --- */
.dna-container-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.dna-content h3 { margin-top: 1.5rem; }
.dna-content h3:first-child { margin-top: 0; }
.dna-gallery {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.dna-gallery img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.dna-gallery img:hover { transform: scale(1.03); box-shadow: var(--shadow); }

/* --- サービスセクション --- */
.service-item { margin-bottom: 1.5rem; background: var(--secondary-color); padding: 25px; border-radius: 8px; border: 1px solid var(--border-color); }
.service-item h3 { border-left: 4px solid var(--accent-color); padding-left: 15px; }

/* --- Press Section --- */
.press-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
}
.press-card {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 20px;
    background: #fff;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}
.press-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}
.press-card .press-date {
    font-weight: 600;
    color: var(--text-muted-color);
    min-width: 130px;
}
.press-card h3 {
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
    font-weight: 500;
}
.press-card .press-source {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted-color);
}

/* --- 求人セクション --- */
.careers-container { max-width: 900px; margin: 0 auto; }
.job-posting {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 2rem;
}
.job-posting .salary {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}
.benefits-section {
    border: 1px solid var(--border-color);
    background: var(--secondary-color);
    border-radius: 12px;
    padding: 30px;
    margin-top: 3rem;
    text-align: center;
}
.benefits-section ul {
    list-style: none;
    padding: 0;
    display: inline-block;
    text-align: left;
}
.benefits-section ul li::before {
    content: '✓';
    color: var(--accent-color);
    margin-right: 10px;
}

/* --- お問い合わせセクション --- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 50px; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 500; }
.form-group input, .form-group textarea {
    width: 100%; padding: 12px; border: 1px solid var(--border-color); border-radius: 8px;
    background: var(--secondary-color); color: var(--text-color); font-family: var(--font-family);
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent-color); }
.contact-section button.btn { width: 100%; padding: 15px; font-size: 1.1rem; cursor: pointer; }

/* --- フッター --- */
footer { background: var(--secondary-color); text-align: center; padding: 40px 0; border-top: 1px solid var(--border-color); }
footer .logo { margin-bottom: 1rem; display: inline-block; }
footer p { margin: 5px 0; color: var(--text-muted-color); font-size: 0.9rem; }

/* --- レスポンシブ対応 --- */
@media(max-width: 992px) {
    h1 { font-size: 2.8rem; } .hero h1 { font-size: 3.5rem; } h2 { font-size: 2rem; }
    .dna-container-grid { grid-template-columns: 1fr; }
    .dna-content { order: 1; } 
    .dna-gallery { order: 2; margin-top: 2rem; }
}
@media(max-width: 768px) {
    nav ul { display: none; }
    section { padding: 80px 0; }
    h1 { font-size: 2.2rem; } .hero h1 { font-size: 2.8rem; } h2 { font-size: 1.8rem; }
    .contact-grid { grid-template-columns: 1fr; }
    .team-member-card { min-height: auto; }
    .leadership-slider.swiper-container { padding: 20px 0 60px; }
    .press-card { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}