/* 基本の見た目 */
:root {
    --main-blue: #003366;
    --light-blue: #00aaff;
    --bg-gray: #f8f9fa;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    margin: 0;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.container {
    width: 90%;
    max-width: 1000px;
    margin: 0 auto;
}

/* ヘッダー */
header {
    background: #fff;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.4rem;
    color: var(--main-blue);
}

.logo span {
    color: var(--light-blue);
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
}

.nav-links li {
    margin-left: 20px;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: bold;
}

.nav-btn {
    background: var(--main-blue);
    color: #fff !important;
    padding: 8px 18px;
    border-radius: 20px;
}

/* ヒーロー画像部分 */
.hero {
    background: linear-gradient(rgba(0,51,102,0.8), rgba(0,51,102,0.8)), 
                url('https://images.unsplash.com/photo-1677442136019-21780ecad995?auto=format&fit=crop&q=80&w=1000');
    background-size: cover;
    background-position: center;
    height: 500px;
    color: #fff;
    display: flex;
    align-items: center;
    text-align: center;
}

.hero-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.btn-primary {
    display: inline-block;
    background: var(--light-blue);
    color: #fff;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
}

/* サービス */
.services {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 1.8rem;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-gray);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

/* お問い合わせ */
.contact-section {
    padding: 80px 0;
    background-color: #f0f4f8;
    text-align: center;
}

.contact-big-btn {
    display: inline-block;
    background: #ff9800;
    color: #fff;
    padding: 18px 40px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 25px;
}

/* フッター */
footer {
    background: #222;
    color: #fff;
    text-align: center;
    padding: 30px 0;
}