/* --- リセット＆基本設定 --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Noto Sans JP', 'Montserrat', sans-serif;
    background-color: #0d0d0d;
    color: #e0e0e0;
    line-height: 1.8;
    letter-spacing: 0.05em;
    overflow-x: hidden;
}
a {
    color: inherit;
    text-decoration: none;
}
ul {
    list-style: none;
}
.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 5%;
}

/* --- ヘッダー --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 60px;
    z-index: 1000;
    background: linear-gradient(to bottom, rgba(13,13,13,0.95), rgba(13,13,13,0));
}
.logo a {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: #ffffff;
}
nav ul {
    display: flex;
    gap: 30px;
}
nav a {
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #a0a0a0;
    transition: color 0.3s;
}
nav a:hover {
    color: #ffffff;
}

/* --- ヒーローセクション --- */
.hero {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at center, #1a1a1a 0%, #0d0d0d 100%);
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    width: 700px;
    height: 700px;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.12), rgba(255, 255, 255, 0.01));
    border-radius: 50%;
    filter: blur(90px);
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 20px;
}
.hero-subtitle {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.85rem;
    letter-spacing: 0.3em;
    color: #d4af37;
    margin-bottom: 20px;
    text-transform: uppercase;
}
.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.3;
    color: #ffffff;
    margin-bottom: 30px;
}
.hero-desc {
    font-size: 1rem;
    color: #a0a0a0;
    max-width: 600px;
    margin: 0 auto;
    font-weight: 300;
}

/* --- 共通セクションレイアウト --- */
section {
    padding: 120px 0;
}
.section-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    color: #d4af37;
    text-transform: uppercase;
    margin-bottom: 10px;
}
.section-heading {
    font-size: 2.2rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 60px;
}

/* --- ビジョン・ミッション --- */
.vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}
.vision-box {
    background: #141414;
    border-left: 3px solid #d4af37;
    padding: 40px;
}
.vision-box h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem;
    letter-spacing: 0.15em;
    color: #d4af37;
    margin-bottom: 20px;
}
.vision-box p {
    font-size: 0.95rem;
    color: #b0b0b0;
    font-weight: 300;
}

/* --- 事業内容 (Service) --- */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}
.service-card {
    background: #141414;
    border: 1px solid #222222;
    padding: 50px 40px;
    transition: transform 0.3s, border-color 0.3s;
}
.service-card:hover {
    transform: translateY(-5px);
    border-color: #d4af37;
}
.service-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    color: #d4af37;
    margin-bottom: 20px;
    font-weight: 700;
}
.service-card h3 {
    font-size: 1.3rem;
    color: #ffffff;
    margin-bottom: 20px;
}
.service-card p {
    font-size: 0.95rem;
    color: #909090;
    font-weight: 300;
}

/* --- ソリューション (Solution) --- */
.solution-section {
    background: #111111;
}
.solution-lead {
    font-size: 1.1rem;
    color: #cccccc;
    margin-bottom: 50px;
    max-width: 900px;
    font-weight: 300;
}
.solution-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.point-item {
    background: #181818;
    padding: 35px;
    border: 1px solid #252525;
}
.point-item h4 {
    font-size: 1.1rem;
    color: #ffffff;
    margin-bottom: 15px;
}
.point-item p {
    font-size: 0.9rem;
    color: #909090;
}

/* --- ニュース (News) --- */
.news-list {
    border-top: 1px solid #222222;
}
.news-list li {
    display: flex;
    align-items: center;
    padding: 25px 0;
    border-bottom: 1px solid #222222;
    gap: 30px;
}
.news-date {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.85rem;
    color: #888888;
}
.news-cat {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.75rem;
    background: #222222;
    color: #d4af37;
    padding: 4px 10px;
    letter-spacing: 0.1em;
}
.news-list a {
    font-size: 0.95rem;
    color: #e0e0e0;
    transition: color 0.3s;
}
.news-list a:hover {
    color: #d4af37;
}

/* --- 求人募集 (Recruit) --- */
.recruit-section {
    background: radial-gradient(circle at center, #181611 0%, #0d0d0d 100%);
    text-align: center;
}
.recruit-desc {
    font-size: 1rem;
    color: #a0a0a0;
    max-width: 700px;
    margin: 0 auto 40px auto;
    font-weight: 300;
}
.recruit-btn-wrapper {
    margin-top: 30px;
}
.recruit-btn {
    display: inline-block;
    padding: 18px 45px;
    border: 1px solid #d4af37;
    color: #d4af37;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: all 0.3s ease;
}
.recruit-btn:hover {
    background: #d4af37;
    color: #0d0d0d;
}

/* --- 会社概要 (About) --- */
.company-table {
    width: 100%;
    border-collapse: collapse;
}
.company-table th, .company-table td {
    padding: 25px 0;
    border-bottom: 1px solid #222222;
    text-align: left;
}
.company-table th {
    width: 25%;
    font-size: 0.9rem;
    color: #a0a0a0;
    font-weight: 400;
}
.company-table td {
    width: 75%;
    font-size: 1rem;
    color: #ffffff;
    font-weight: 300;
}

/* --- フッター --- */
footer {
    padding: 80px 0 60px 0;
    border-top: 1px solid #1a1a1a;
    text-align: center;
}
.footer-logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: #ffffff;
    margin-bottom: 20px;
}
footer p {
    font-size: 0.75rem;
    color: #666666;
    font-family: 'Montserrat', sans-serif;
    letter-spacing: 0.1em;
}

/* --- レスポンシブ対応 --- */
@media (max-width: 900px) {
    header {
        padding: 20px;
    }
    nav {
        display: none;
    }
    section {
        padding: 80px 0;
    }
    .company-table th, .company-table td {
        display: block;
        width: 100%;
        padding: 10px 0;
    }
    .company-table th {
        color: #d4af37;
    }
    .news-list li {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}