@charset "utf-8";

/* ==========================================================================
   0. Variables & Settings
   ========================================================================== */
:root {
    --primary-color: #0056b3;
    --primary-light-color: #007bff;
    --secondary-color: #003d82;
    --accent-color: #f8f9fa;
    --text-dark: #333;
    --text-muted: #6c757d;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-dark);
    background-color: #fff;
    overflow-x: hidden;
}

.container-custom {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 15px;
    padding-right: 15px;
}

/* ==========================================================================
   1. Global Navigation
   ========================================================================== */
.navbar {
    background-color: rgba(17, 17, 17, 0.95); 
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    padding: 0; 
    transition: all 0.4s ease;
    z-index: 1030;
}
.brand-container { 
    display: flex; align-items: center; 
    padding: 18px 0;
    transition: all 0.4s ease;
}
.navbar-brand-lion { max-height: 55px; margin-right: 15px; transition: all 0.4s ease; }
.navbar-brand-text { max-height: 40px; filter: brightness(0) invert(1); transition: all 0.4s ease; }

.nav-square {
    display: flex; flex-direction: column; justify-content: center; align-items: center;
    width: 90px; height: 90px; background-color: transparent;
    color: rgba(255, 255, 255, 0.7) !important; text-decoration: none;
    font-size: 0.6rem; font-weight: 500; letter-spacing: 0.02em;
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s ease; box-sizing: border-box;
}
.nav-square:last-child { border-right: 1px solid rgba(255, 255, 255, 0.08); }
.nav-square i { font-size: 1.3rem; margin-bottom: 6px; color: rgba(255, 255, 255, 0.5); transition: all 0.3s ease; }
.nav-square:hover { background-color: var(--primary-color); color: #fff !important; }
.nav-square:hover i { color: #fff; transform: translateY(-2px); }

.nav-square.btn-contact { background-color: #003366; color: #fff !important; }
.nav-square.btn-contact i { color: #fff; }
.nav-square.btn-contact:hover { background-color: #001a38; }

/* ★ここを追加・変更：PC（992px以上）の時のみ、スクロールで小さくする */
@media (min-width: 992px) {
    .navbar.scrolled .brand-container { padding: 8px 0; }
    .navbar.scrolled .navbar-brand-lion { max-height: 40px; }
    .navbar.scrolled .navbar-brand-text { max-height: 25px; }
    .navbar.scrolled .nav-square { height: 65px; width: 80px; font-size: 0.55rem; }
    .navbar.scrolled .nav-square i { font-size: 1.1rem; margin-bottom: 4px; }
    .navbar.scrolled .nav-square span { line-height: 1.1 !important; }
}

/* ==========================================================================
   2. Components (Sections, Buttons)
   ========================================================================== */
.cool-section-header { text-align: center; margin-bottom: 60px; position: relative; z-index: 2; }
.cool-section-title {
    font-size: 2.5rem; font-weight: 300; color: var(--primary-color);
    letter-spacing: 0.2em; margin-bottom: 5px; text-transform: uppercase;
}
.cool-section-subtitle { font-size: 0.85rem; color: var(--text-muted); font-weight: 400; letter-spacing: 0.3em; text-transform: uppercase; }

.btn-cool {
    background-color: var(--primary-light-color); border-color: var(--primary-light-color);
    color: white; font-weight: 500; padding: 12px 40px; font-size: 1rem;
    letter-spacing: 0.1em; transition: 0.3s; border-radius: 50px; text-decoration: none; display: inline-block;
}
.btn-cool:hover { background-color: var(--primary-color); color: white; }

/* ==========================================================================
   3. Footer
   ========================================================================== */
footer { background-color: #111; color: #aaa; padding: 80px 0 30px; }
footer a { color: #888; text-decoration: none; transition: color 0.3s; }
footer a:hover { color: white; }
.footer-brand-container { display: flex; align-items: center; margin-bottom: 25px; }
.footer-brand-lion { max-height: 50px; margin-right: 15px; } 
.footer-brand-text { max-height: 35px; filter: brightness(0) invert(1); } 
.footer-title { border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 10px; margin-bottom: 20px; font-weight: 500; color: white; font-size: 0.95rem; letter-spacing: 0.1em; }
.footer-links li { margin-bottom: 10px; }

/* ==========================================================================
   4. Responsive (Global)
   ========================================================================== */

/* ★ページ全体の横揺れ・横スクロールを完全に防ぐ */
html, body {
    overflow-x: hidden;
    width: 100%;
}

@media (max-width: 991px) {
    .navbar-collapse {
        background-color: rgba(17, 17, 17, 0.98);
        position: absolute; 
        top: 100%; 
        left: 0; 
        width: 100%; /* right:0 をやめて100%に固定 */
        max-width: 100vw;
        box-sizing: border-box; 
        border-top: 1px solid #333; 
        padding: 20px 15px; /* 左右の余白を少し調整 */
        overflow-x: hidden; /* メニュー内の飛び出しをカット */
    }
    .navbar-nav { 
        display: grid !important; 
        /* ★1fr ではなく minmax(0, 1fr) にすることで文字による枠の押し広げを完全に防ぎます */
        grid-template-columns: repeat(3, minmax(0, 1fr)) !important; 
        gap: 10px; 
        width: 100% !important; 
        margin: 0;
        padding: 0;
    }
    .nav-item { 
        width: 100% !important; 
        min-width: 0; /* ★これがないとGridが突き抜ける場合があります */
    }
    .nav-item.d-lg-none {
        grid-column: 1 / -1 !important;
        margin-top: 10px !important;
    }
    .nav-square { 
        width: 100% !important; 
        height: 90px; 
        border: 1px solid rgba(255, 255, 255, 0.15) !important; 
        border-radius: 8px; 
        font-size: 0.75rem;
        box-sizing: border-box; 
        padding: 5px; /* 文字が枠に当たるのを防ぐ */
    }
    .contact-item { 
        grid-column: 1 / -1 !important; 
    } 
    .nav-square.btn-contact {
        height: 60px; 
        flex-direction: row; 
        justify-content: center;
        font-size: 1rem;
        border: none !important;
    }
    .nav-square.btn-contact i {
        margin-bottom: 0;
        margin-right: 10px; 
        font-size: 1.2rem;
        transform: none !important;
    }
    .cool-section-title { font-size: 2rem; }
}

@media (max-width: 767px) {
    .brand-container { padding: 10px 0; max-width: calc(100% - 60px); } /* ロゴが長すぎてもスクロールしないように調整 */
    .navbar-brand-lion { max-height: 40px; }
    .navbar-brand-text { max-height: 25px; max-width: 100%; object-fit: contain; }
    .navbar-nav { 
        /* ★スマホも minmax(0, 1fr) で2列に強制固定 */
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important; 
        gap: 10px; 
    }
    .nav-square { 
        height: 85px; 
        font-size: 0.7rem; 
    }
    .nav-square i {
        font-size: 1.2rem;
        margin-bottom: 6px;
    }
    .cool-section-title { font-size: 1.6rem; letter-spacing: 0.1em; }
}