/*
Theme Name: Nektas Corporate Theme
Description: 株式会社ネクタス向けのコーポレートサイト用カスタムテーマ。HTMLモックアップ（01_html-mockup）をベースに構築。
Author: Antigravity Context
Version: 1.0.1
*/

/* Design 14: エレガント・クール
 * 09のエレガントな構成をベースに、配色をクール系に変更
 * カラー: クールグレー + スレートブルー
 */
:root {
    --text-color: #3a3a3a;
    --bg-color: #fff;
    --accent: #5a7a94; /* スレートブルー */
    --accent-light: #f5f7f9;
}
body {
    font-family: var(--font-family-serif);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 2;
    letter-spacing: 0.05em;
}
.section { padding: 100px 0; }
.section-title { font-size: 2rem; font-weight: normal; color: var(--accent); margin-bottom: 60px; text-align: center; letter-spacing: 0.2em; text-transform: uppercase; }
.section-title::after { content: ''; display: block; width: 1px; height: 40px; background: var(--accent); margin: 20px auto 0; }

/* Header */
header { padding: 30px 0; border-bottom: 1px solid rgba(90, 122, 148, 0.25); }
.header-inner { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.3rem; color: var(--text-color); letter-spacing: 0.2em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; }
.nav-menu { display: flex; gap: 40px; list-style: none; margin: 0; padding: 0; align-items: center; }
.nav-menu li { margin: 0; padding: 0; }
.nav-menu a { font-size: 0.85rem; letter-spacing: 0.1em; color: #666; transition: color 0.4s; text-decoration: none; }
.nav-menu a:hover { color: var(--accent); }

/* Hero */
#hero { padding: 150px 0; text-align: center; background: radial-gradient(circle at center, var(--accent-light) 0%, #fff 70%); }
#hero h1 { font-size: 2.4rem; font-weight: normal; color: var(--text-color); margin-bottom: 30px; letter-spacing: 0.15em; line-height: 1.8; }
#hero p { font-size: 1.1rem; color: #777; letter-spacing: 0.1em; }

/* About */
.about-text { max-width: 650px; margin: 0 auto; text-align: center; font-size: 1.05rem; line-height: 2.2; color: #555; }

/* Services */
#services { background: var(--accent-light); }
.service-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; max-width: 900px; margin: 0 auto; }
.service-item { background: #fff; padding: 50px 40px; border: 1px solid rgba(90, 122, 148, 0.15); text-align: center; transition: box-shadow 0.4s; }
.service-item:hover { box-shadow: 0 15px 30px rgba(90, 122, 148, 0.1); }
.service-item h3 { font-size: 1.25rem; font-weight: normal; color: var(--text-color); margin-bottom: 20px; letter-spacing: 0.1em; }
.service-item p { color: #666; font-size: 0.95rem; }

/* Company */
.company-table { width: 100%; max-width: 700px; margin: 0 auto; border-collapse: collapse; }
.company-table th, .company-table td { padding: 25px 0; text-align: left; border-bottom: 1px solid rgba(90, 122, 148, 0.15); }
.company-table th { width: 30%; font-weight: normal; color: var(--accent); }
.company-table a { color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--accent); padding-bottom: 2px; }

/* Contact */
#contact { text-align: center; padding: 120px 0; border-top: 1px solid rgba(90, 122, 148, 0.15); }
#contact .section-title::after { display: none; }
.contact-inner p { margin-bottom: 50px; color: #666; }
.contact-email { display: inline-block; font-size: 1.6rem; color: var(--text-color); border: 1px solid var(--accent); padding: 20px 60px; letter-spacing: 0.1em; transition: all 0.4s; text-decoration: none; }
.contact-email:hover { background: var(--accent); color: #fff; }

/* Footer */
footer { padding: 60px 0; text-align: center; background: #2c353d; border-top: 1px solid rgba(255, 255, 255, 0.05); color: #94a3b8; }
.footer-links { display: flex; justify-content: center; gap: 40px; margin-bottom: 30px; flex-wrap: wrap; }
.footer-links a { font-size: 0.85rem; color: #94a3b8; letter-spacing: 0.05em; transition: color 0.3s; text-decoration: none; }
.footer-links a:hover { color: #fff; }
.copyright { font-size: 0.8rem; color: #64748b; letter-spacing: 0.1em; }

@media (max-width: 768px) {
    .header-inner { flex-direction: column; gap: 15px; text-align: center; }
    .nav-links, .nav-menu { display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; }
    .service-list { grid-template-columns: 1fr; }
    #hero h1 { font-size: 1.8rem; }
    .company-table th, .company-table td { display: block; width: 100%; padding: 15px 0; }
    .company-table th { border-bottom: none; }
    .contact-email { font-size: 1.2rem; padding: 15px 30px; }
}