/* ===== リセット ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Meiryo', sans-serif;
    line-height: 1.6;
    color: #333;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ===== コンテナ ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== ヘッダー ===== */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    position: relative;
}

.header-left {
    flex: 1;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    width: 65px;
    height: 65px;
    object-fit: contain;
}

.company-info {
    display: flex;
    flex-direction: column;
}

.company-name {
    font-size: 1.3rem;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 3px;
}

.catchphrase {
    font-size: 0.78rem;
    color: #666;
}

/* ヘッダー右側 - モバイルでは非表示 */
.header-right {
    display: none;
}

/* ハンバーガーメニューボタン - モバイルのみ表示 */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    width: 44px;
    height: 44px;
    z-index: 1001;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: #2c3e50;
    transition: all 0.3s ease;
}

.hamburger.active {
    gap: 0;
}

.hamburger.active .hamburger-line {
    position: absolute;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg);
}

/* ナビゲーション - モバイルではデフォルトで非表示 */
.nav {
    display: block;
}

.nav-list {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    gap: 0;
    padding: 30px 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    z-index: 999;
}

.nav-list.active {
    display: flex;
}

.nav-list li {
    text-align: center;
    padding: 15px 0;
    border-bottom: 1px solid #eee;
}

.nav-list li:last-child {
    border-bottom: none;
}

.nav-list a {
    display: block;
    padding: 10px 20px;
    color: #2c3e50;
    font-weight: 500;
    font-size: 16px;
    transition: background 0.3s;
}

.nav-list a:hover {
    background: #f8f9fa;
}

/* ===== デスクトップ（968px以上）===== */
@media (min-width: 968px) {
    .logo {
        width: 80px;
        height: 80px;
    }
    
    .company-name {
        font-size: 2rem;
    }
    
    .catchphrase {
        font-size: 1rem;
    }
    
    /* ヘッダー右側を表示 */
    .header-right {
        display: block;
        margin-left: 20px;
    }
    
    .business-hours {
        text-align: right;
    }
    
    .hours, .holiday {
        font-size: 0.9rem;
        color: #2c3e50;
        margin: 2px 0;
    }
    
    /* ハンバーガーメニューボタンを非表示 */
    .hamburger {
        display: none;
    }
    
    /* ナビゲーションを常に表示 */
    .nav {
        display: block;
        position: static;
        box-shadow: none;
    }
    
    .nav-list {
        display: flex !important;
        position: static;
        flex-direction: row;
        justify-content: center;
        padding: 10px 0;
        box-shadow: none;
    }
    
    .nav-list li {
        border-bottom: none;
        padding: 0;
        text-align: left;
    }
    
    .nav-list a {
        padding: 10px 20px;
    }
}

/* ===== ヒーローセクション ===== */
.hero {
    position: relative;
    height: 400px;
    background: url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?w=1600') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (min-width: 768px) {
    .hero {
        height: 500px;
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    text-align: center;
    color: #fff;
    padding: 20px;
}

.hero-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
    font-weight: bold;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
}

.hero-subtitle {
    font-size: 0.95rem;
    margin-bottom: 30px;
    line-height: 1.8;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.1rem;
    }
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 5px;
    font-weight: bold;
    transition: all 0.3s;
}

.btn-primary {
    background: #3498db;
    color: #fff;
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

/* ===== LINEセクション ===== */
.line-section {
    background: #06c755;
    color: #fff;
    padding: 40px 0;
}

.line-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

@media (min-width: 768px) {
    .line-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

.line-text {
    text-align: center;
}

@media (min-width: 768px) {
    .line-text {
        text-align: left;
    }
}

.line-text h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

@media (min-width: 768px) {
    .line-text h3 {
        font-size: 1.8rem;
    }
}

.line-text p {
    font-size: 1rem;
}

@media (min-width: 768px) {
    .line-text p {
        font-size: 1.1rem;
    }
}

/* LINE QRコード - 白枠いっぱいに表示 */
.line-qr {
    width: 300px;
    height: 300px;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin: 0 auto;
}

.line-qr img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center center;
    display: block;
}

/* ===== セクション共通 ===== */
section {
    padding: 60px 0;
}

.section-title {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    position: relative;
    padding-bottom: 15px;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #3498db;
}

/* ===== サービスセクション ===== */
.services {
    background: #f8f9fa;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.service-card h3 {
    font-size: 1.5rem;
    padding: 20px;
    color: #2c3e50;
}

.service-card p {
    padding: 0 20px 20px;
    color: #666;
}

/* ===== 施工事例セクション ===== */
.works-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 768px) {
    .works-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 968px) {
    .works-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.work-card {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: transform 0.3s;
}

.work-card:hover {
    transform: scale(1.05);
}

.work-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.work-card h3 {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.7);
    color: #fff;
    padding: 15px;
    font-size: 1.1rem;
}

/* ===== 選ばれる理由セクション ===== */
.reasons {
    background: #f8f9fa;
}

.reasons-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media (min-width: 768px) {
    .reasons-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 968px) {
    .reasons-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.reason-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
}

.reason-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: #3498db;
    margin-bottom: 15px;
}

.reason-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #2c3e50;
}

.reason-card p {
    color: #666;
}

/* ===== NEWSセクション ===== */
.news-list {
    max-width: 800px;
    margin: 0 auto;
}

.news-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    border-bottom: 1px solid #eee;
    align-items: flex-start;
    flex-direction: column;
}

@media (min-width: 768px) {
    .news-item {
        flex-direction: row;
    }
}

.news-date {
    font-weight: bold;
    color: #3498db;
    white-space: nowrap;
}

.news-text {
    flex: 1;
    color: #666;
}

/* ===== 求人情報セクション ===== */
.recruit {
    background: #f8f9fa;
}

.recruit-message {
    text-align: center;
    color: #666;
    font-size: 1.1rem;
}

/* ===== 会社概要セクション ===== */
/* 代表メッセージ */
.president-message {
    max-width: 900px;
    margin: 0 auto 60px;
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
}

.president-message h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: #2c3e50;
    text-align: center;
}

.message-content p {
    line-height: 2;
    margin-bottom: 20px;
    color: #666;
}

.president-name {
    text-align: right;
    font-weight: bold;
    color: #2c3e50;
    margin-top: 30px;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-table {
    width: 100%;
    margin-bottom: 40px;
    border-collapse: collapse;
}

.about-table th,
.about-table td {
    padding: 15px;
    border: 1px solid #ddd;
    text-align: left;
}

.about-table th {
    background: #f8f9fa;
    font-weight: bold;
    width: 150px;
}

.map {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* ===== お問い合わせセクション ===== */
.contact {
    background: #f8f9fa;
}

.contact-text {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 40px;
    color: #666;
}

.contact-phone,
.contact-mobile {
    font-size: 1.5rem;
    font-weight: bold;
    color: #3498db;
    margin: 10px 0;
}

.contact-methods {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .contact-methods {
        grid-template-columns: repeat(2, 1fr);
    }
}

.contact-method {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
}

.contact-method h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

.contact-phone {
    font-size: 1.8rem;
    font-weight: bold;
    color: #3498db;
    margin: 15px 0;
}

/* お問い合わせセクションのQRコード */
.contact-qr {
    width: 250px;
    height: 250px;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    margin: 20px auto 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.contact-qr img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center center;
    display: block;
}

/* ===== フッター ===== */
.footer {
    background: #2c3e50;
    color: #fff;
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 2fr 1fr;
    }
}

.footer-info h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.footer-info p {
    margin: 5px 0;
    color: #bdc3c7;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 768px) {
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: #bdc3c7;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #3498db;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* ===== スムーススクロール ===== */
html {
    scroll-behavior: smooth;
}