/* ------------------------------
   BASE
------------------------------ */
body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    color: #333;
    background: linear-gradient(135deg, #fff8f3 0%, #f3f7fb 100%);
}

/* Layout */
.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

/* ------------------------------
   HEADER
------------------------------ */
.site-header {
    background: #fff;
    border-bottom: 1px solid #eee;
    position: sticky;
    top: 0;
    z-index: 20;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
}

.brand {
    font-size: 1.6rem;
    font-weight: 700;
    color: #333; /* 全体の基本色（お好みで） */
    text-decoration: none;
}

.brand-main {
    color: #f57c00;   /* オレンジ色 */
}

.main-nav a {
    margin-left: 24px;
    text-decoration: none;
    color: #444;
    font-weight: 500;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1rem;
}

/* Mobile nav */
.mobile-nav {
    display: flex;
    flex-direction: column;
    background: #fff;
    padding: 12px 0;
}

.mobile-nav a {
    padding: 10px 0;
    text-align: center;
    color: #444;
    text-decoration: none;
}

/* ------------------------------
   HERO
------------------------------ */
.hero {
    padding: 80px 0 100px;
    text-align: center;
}

.hero h1 {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.hero .lead {
    font-size: 1.1rem;
    margin-bottom: 40px;
    line-height: 1.7;
}

.cta-row .btn {
    margin: 0 10px;
}

/* ------------------------------
   SECTIONS
------------------------------ */
.section {
    padding: 60px 0;
}

.section h2 {
    font-size: 1.8rem;
    margin-bottom: 30px;
}

/* ------------------------------
   CARDS / GRID
------------------------------ */
.grid {
    display: grid;
    gap: 24px;
}

.card {
    background: #fff;
    border-radius: 10px;
    padding: 24px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}

/* Company table */
.company-list div {
    margin-bottom: 16px;
}

.company-list dt {
    font-weight: 600;
}

.company-list dd {
    margin: 4px 0 0;
}

/* ------------------------------
   CONTACT
------------------------------ */
.contact-card {
    text-align: center;
}

.contact-lead {
    margin-bottom: 18px;
}

/* ------------------------------
   BUTTONS
------------------------------ */
.btn {
    display: inline-block;
    padding: 12px 22px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
}

.btn-primary {
    background: #ff7a29;
    color: #fff;
}

.btn-primary:hover {
    opacity: 0.85;
}

.btn-ghost {
    border: 1px solid #ff7a29;
    color: #ff7a29;
}

/* ------------------------------
   FOOTER
------------------------------ */
.site-footer {
    padding: 40px 0;
    background: #fff;
    border-top: 1px solid #eee;
    margin-top: 60px;
    text-align: center;
}

.site-footer nav a {
    margin-left: 20px;
    text-decoration: none;
    color: #444;
}

footer nav {
	margin-bottom: 10px;
}

/* ------------------------------
   RESPONSIVE
------------------------------ */
@media (max-width: 768px) {
    .main-nav {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 1.9rem;
    }
}


.mobile-nav[hidden] {
    display: none;
}