/* レスポンシブデザイン */

/* タブレット */
@media (max-width: 768px) {
    .header-container {
        height: 70px;
        padding: 0 15px;
    }
    
    .logo h1 {
        font-size: 1.3rem;
    }
    
    .nav {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .contact-info {
        display: none;
    }
    
    .hero {
        padding: 100px 20px 60px;
        margin-top: 70px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .philosophy-main {
        font-size: 1.2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 25px;
        margin-top: 30px;
    }
    
    .technology-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .works-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .work-image {
        height: 160px;
    }
    
    .work-item {
        border-radius: 12px;
    }
    
    .work-item h3 {
        font-size: 1.1rem;
    }
    
    .recruit-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .about-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .info-row {
        flex-direction: column;
    }
    
    .info-item {
        padding: 15px 20px;
    }
    
    .info-item.full-width {
        flex: 1;
    }
    
    .info-label {
        font-size: 0.8rem;
    }
    
    .info-value {
        font-size: 1rem;
    }
    
    .company-img {
        max-width: 400px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    /* タイムラインのレスポンシブ対応 */
    .news-timeline {
        padding: 25px 0;
        max-width: 100%;
    }
    
    .news-timeline .timeline-item {
        flex-direction: column;
        margin-bottom: 18px;
        border-radius: 10px;
    }
    
    .news-timeline .timeline-date {
        padding: 12px;
        border-radius: 10px 10px 0 0;
    }
    
    .news-timeline .timeline-day {
        font-size: 1.6rem;
        margin-bottom: 2px;
    }
    
    .news-timeline .timeline-month {
        font-size: 0.9rem;
    }
    
    .news-timeline .timeline-content {
        padding: 15px;
        border-radius: 0 0 10px 10px;
    }
    
    .news-timeline .timeline-content h3 {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }
    
    .news-timeline .timeline-content p {
        font-size: 0.9rem;
        margin-bottom: 10px;
    }
    
    .news-timeline .timeline-category {
        font-size: 0.75rem;
        padding: 4px 10px;
        margin-bottom: 10px;
    }
    
    .news-timeline .timeline-details {
        padding: 12px;
        margin: 10px 0;
        border-radius: 6px;
    }
    
    .news-timeline .timeline-details p {
        font-size: 0.85rem;
        margin-bottom: 6px;
    }
    
    .news-timeline .timeline-link .btn {
        padding: 8px 20px;
        font-size: 0.9rem;
    }
    
    .works-slider {
        margin: 0 10px;
    }
    
    .slider-container {
        margin: 0 20px;
    }
    
    .work-item {
        min-width: 250px;
    }
    
    .work-image {
        height: 160px;
    }
    
    .slider-btn {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .slider-dots {
        margin-top: 20px;
    }
    
    .accordion-header {
        padding: 20px 15px;
    }
    
    .accordion-header h3 {
        font-size: 1.1rem;
    }
    
    .accordion-icon {
        font-size: 1.3rem;
    }
    
    .accordion-content p {
        padding: 15px 15px 10px;
        font-size: 0.9rem;
    }
    
    .accordion-content ul {
        padding: 0 15px 15px;
    }
    
    .accordion-content li {
        font-size: 0.85rem;
        padding: 6px 0;
    }
    
    .service-card {
        height: 300px;
    }
    
    .card-overlay {
        padding: 30px 20px 20px;
    }
    
    .card-overlay h3 {
        font-size: 1.2rem;
    }
    
    .card-overlay p {
        font-size: 0.9rem;
    }
    
    .card-overlay li {
        font-size: 0.8rem;
    }
    
    /* お知らせスライダー */
    .news-slider {
        margin: 0 20px 40px;
    }
    
    .news-slider-container {
        padding: 0 60px;
    }
    
    .news-item {
        padding: 25px;
        flex-direction: column;
        gap: 15px;
        width: 100%;
        flex-shrink: 0;
    }
    
    .news-date {
        align-self: flex-start;
        min-width: 70px;
        padding: 12px;
        margin-left: 0;
    }
    
    .news-day {
        font-size: 1.5rem;
    }
    
    .news-content h3 {
        font-size: 1.1rem;
    }
    
    .news-slider-btn {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
        margin: 0 10px;
    }
    
    .tech-content {
        padding: 30px 20px;
        margin: 0 15px;
    }
    
    .tech-content h2 {
        font-size: 1.6rem;
    }
    
    .tech-content > p {
        font-size: 1rem;
    }
    
    .tech-image-section {
        margin: 30px 0;
    }
    
    .tech-main-image {
        border-radius: 8px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .service-card-modern {
        border-radius: 15px;
    }
    
    .service-content {
        padding: 25px;
    }
    
    .service-icon {
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
        top: -18px;
        right: 25px;
    }
    
    .service-content h3 {
        font-size: 1.3rem;
        margin-right: 50px;
    }
    
    .service-description {
        font-size: 0.9rem;
    }
    
    .service-list li {
        font-size: 0.85rem;
        padding: 6px 0 6px 18px;
    }
}

/* スマートフォン */
@media (max-width: 480px) {
    .header-container {
        height: 60px;
        padding: 0 15px;
    }
    
    .logo h1 {
        font-size: 1.1rem;
    }
    
    .hero {
        padding: 80px 15px 50px;
        margin-top: 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .cta-btn {
        padding: 12px 30px;
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 40px;
    }
    
    .philosophy-main {
        font-size: 1.1rem;
        line-height: 1.8;
    }
    
    .philosophy-description {
        font-size: 1rem;
    }
    
    .services {
        padding: 60px 0;
    }
    
    .services-grid {
        gap: 20px;
        margin-top: 25px;
    }
    
    .service-card {
        height: 250px;
    }
    
    .service-icon {
        font-size: 2.5rem;
    }
    
    .technology {
        padding: 60px 0;
    }
    
    .tech-card {
        padding: 30px 20px;
    }
    
    .works {
        padding: 60px 0;
        background-attachment: scroll;
    }
    
    .work-item {
        padding: 25px 20px;
    }
    
    .about {
        padding: 60px 0;
    }
    
    .about-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .info-cards {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .info-card {
        padding: 18px;
    }
    
    .info-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .info-content h4 {
        font-size: 0.8rem;
        margin-bottom: 6px;
    }
    
    .info-content p {
        font-size: 0.95rem;
    }
    
    .company-img {
        max-width: 300px;
    }
    
    .info-table th,
    .info-table td {
        padding: 12px 15px;
        font-size: 0.9rem;
    }
    
    .info-table th {
        width: 35%;
    }
    
    .recruit {
        padding: 60px 0;
    }
    
    .recruit-card {
        padding: 30px 20px;
    }
    
    .contact {
        padding: 60px 0;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 10px;
        font-size: 0.9rem;
    }
    
    .submit-btn {
        padding: 12px 30px;
        font-size: 1rem;
    }
    
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-info h3 {
        font-size: 1.2rem;
    }
    
    .footer-links h4 {
        font-size: 1.1rem;
    }
    
    .news-timeline::before {
        left: 12px;
        width: 3px;
    }
    
    .news-timeline .timeline-item {
        flex-direction: column;
        gap: 10px;
        margin-bottom: 20px;
        padding-left: 25px;
    }
    
    .news-timeline .timeline-date {
        padding: 10px 6px;
        border-radius: 8px;
        height: 50px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    
    .news-timeline .timeline-date::before {
        right: -7px;
        top: 50%;
        width: 14px;
        height: 14px;
        border-width: 2px;
        transform: translateY(-50%);
    }
    
    .news-timeline .timeline-date::after {
        right: -3px;
        top: 50%;
        width: 6px;
        height: 6px;
        transform: translateY(-50%);
    }
    
    .news-timeline .timeline-day {
        font-size: 1.5rem;
        margin-bottom: 2px;
        display: block;
    }
    
    .news-timeline .timeline-month {
        font-size: 0.8rem;
        display: block;
    }
    
    .news-timeline .timeline-content {
        padding: 12px;
        border-radius: 4px;
    }
    
    .news-timeline .timeline-content h3 {
        font-size: 1rem;
        margin-bottom: 8px;
    }
    
    .news-timeline .timeline-content p {
        font-size: 0.85rem;
        margin-bottom: 8px;
    }
    
    .news-timeline .timeline-category {
        font-size: 0.65rem;
        padding: 2px 6px;
        margin-bottom: 8px;
    }
    
    .news-timeline .timeline-details {
        padding: 10px;
        margin: 8px 0;
    }
    
    .news-timeline .timeline-details p {
        font-size: 0.8rem;
        margin-bottom: 4px;
    }
    
    .news-timeline .timeline-link .btn {
        padding: 5px 12px;
        font-size: 0.75rem;
    }
    
    .works-slider {
        margin: 0 10px;
    }
    
    .slider-container {
        margin: 0 20px;
    }
    
    .work-item {
        min-width: 250px;
    }
    
    .work-image {
        height: 160px;
    }
    
    .slider-btn {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .slider-dots {
        margin-top: 20px;
    }
    
    .accordion-header {
        padding: 15px 20px;
        gap: 12px;
        flex-direction: column;
        align-items: flex-start;
        position: relative;
    }
    
    .accordion-header h3 {
        font-size: 1.1rem;
    }
    
    .accordion-icon {
        font-size: 1.3rem;
    }
    
    .accordion-content p {
        padding: 15px 15px 10px;
        font-size: 0.9rem;
    }
    
    .accordion-content ul {
        padding: 0 15px 15px;
    }
    
    .accordion-content li {
        font-size: 0.85rem;
        padding: 6px 0;
    }
    
    .card-overlay {
        padding: 25px 15px 15px;
    }
    
    .card-overlay h3 {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }
    
    .card-overlay p {
        font-size: 0.85rem;
        margin-bottom: 12px;
    }
    
    .card-overlay li {
        font-size: 0.75rem;
        padding: 3px 0;
    }
    
    /* お知らせスライダー */
    .news-slider {
        margin: 0 10px 30px;
    }
    
    .news-slider-container {
        padding: 0 60px;
    }
    
    .news-item {
        padding: 20px;
        flex-direction: column;
        gap: 12px;
        width: 100%;
        flex-shrink: 0;
    }
    
    .news-date {
        align-self: flex-start;
        min-width: 60px;
        padding: 10px;
        margin-left: 0;
    }
    
    .news-day {
        font-size: 1.3rem;
    }
    
    .news-month {
        font-size: 0.8rem;
    }
    
    .news-content h3 {
        font-size: 1rem;
    }
    
    .news-content p {
        font-size: 0.9rem;
    }
    
    .news-slider-btn {
        width: 35px;
        height: 35px;
        font-size: 1rem;
        margin: 0 5px;
    }
    
    .news-slider-dots {
        margin-top: 20px;
    }
    
    .news-dot {
        width: 10px;
        height: 10px;
    }
    
    .service-card-modern {
        border-radius: 12px;
    }
    
    .service-image {
        height: 180px;
    }
    
    .service-content {
        padding: 20px;
    }
    
    .service-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
        top: -15px;
        right: 20px;
    }
    
    .service-content h3 {
        font-size: 1.2rem;
        margin-right: 45px;
    }
    
    .service-description {
        font-size: 0.85rem;
        margin-bottom: 15px;
    }
    
    .service-list li {
        font-size: 0.8rem;
        padding: 5px 0 5px 16px;
    }
}

/* 超小型デバイス */
@media (max-width: 320px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .philosophy-main {
        font-size: 1rem;
    }
    
    .service-card,
    .tech-card,
    .work-item,
    .recruit-card {
        padding: 15px;
    }
    
    .contact-form {
        padding: 20px;
    }
    
    /* タイムラインの超小画面対応 */
    .news-timeline {
        padding: 20px 0;
        max-width: 100%;
    }
    
    .news-timeline .timeline-item {
        flex-direction: column;
        margin-bottom: 15px;
        border-radius: 8px;
    }
    
    .news-timeline .timeline-date {
        padding: 10px;
        border-radius: 8px 8px 0 0;
    }
    
    .news-timeline .timeline-day {
        font-size: 1.4rem;
        margin-bottom: 2px;
    }
    
    .news-timeline .timeline-month {
        font-size: 0.8rem;
    }
    
    .news-timeline .timeline-content {
        padding: 12px;
        border-radius: 0 0 8px 8px;
    }
    
    .news-timeline .timeline-content h3 {
        font-size: 1rem;
        margin-bottom: 8px;
    }
    
    .news-timeline .timeline-content p {
        font-size: 0.85rem;
        margin-bottom: 8px;
    }
    
    .news-timeline .timeline-category {
        font-size: 0.7rem;
        padding: 3px 8px;
        margin-bottom: 8px;
    }
    
    .news-timeline .timeline-details {
        padding: 10px;
        margin: 8px 0;
        border-radius: 4px;
    }
    
    .news-timeline .timeline-details p {
        font-size: 0.8rem;
        margin-bottom: 4px;
    }
    
    .news-timeline .timeline-link .btn {
        padding: 6px 16px;
        font-size: 0.8rem;
    }
}

/* 横画面スマートフォン */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: 60px 20px 40px;
    }
    
    .hero-title {
        font-size: 1.8rem;
        margin-bottom: 15px;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 25px;
    }
    
    .cta-btn {
        padding: 10px 25px;
        font-size: 0.9rem;
    }
}

/* 高解像度ディスプレイ */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .service-card,
    .tech-card,
    .work-item,
    .recruit-card {
        box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    }
}

/* 印刷用スタイル */
@media print {
    .header,
    .hamburger,
    .cta-btn,
    .contact-btn,
    .recruit-btn,
    .submit-btn {
        display: none !important;
    }
    
    .hero {
        background: none !important;
        color: #000 !important;
        margin-top: 0 !important;
        padding: 20px 0 !important;
    }
    
    .section-title {
        color: #000 !important;
    }
    
    .section-title::after {
        background-color: #000 !important;
    }
    
    .service-card,
    .tech-card,
    .work-item,
    .recruit-card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
    
    .footer {
        background: none !important;
        color: #000 !important;
    }
}

.about-content {
    flex-direction: column;
    gap: 20px;
}

.info-item {
    padding: 12px 15px;
}

.info-label {
    font-size: 0.75rem;
}

.info-value {
    font-size: 0.9rem;
}

.company-img {
    max-width: 300px;
}

.info-table th,
.info-table td {
    padding: 12px 15px;
    font-size: 0.9rem;
}

.info-table th {
    width: 35%;
}

/* お知らせ一覧ページ */
.page-header {
    padding: 40px 0;
    margin-top: 60px;
}

.page-header h1 {
    font-size: 2rem;
}

.news-filter h3 {
    font-size: 1.2rem;
}

.filter-buttons {
    gap: 10px;
}

.filter-btn {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.accordion-header {
    padding: 20px 25px;
    gap: 15px;
}

.accordion-date {
    min-width: 60px;
    padding: 10px;
}

.date-day {
    font-size: 1.3rem;
}

.accordion-title h3 {
    font-size: 1.1rem;
}

.accordion-content p {
    padding: 0 25px 15px;
}

.news-details {
    padding: 0 25px 25px;
}

/* スマートフォン用のお知らせ一覧ページ */
.page-header {
    padding: 30px 0;
    margin-top: 60px;
}

.page-header h1 {
    font-size: 1.8rem;
}

.page-header p {
    font-size: 1rem;
}

.news-filter h3 {
    font-size: 1.1rem;
}

.filter-buttons {
    gap: 8px;
}

.filter-btn {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.accordion-header {
    padding: 15px 20px;
    gap: 12px;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
}

.accordion-date {
    min-width: 50px;
    padding: 8px;
}

.date-day {
    font-size: 1.1rem;
}

.date-month {
    font-size: 0.7rem;
}

.accordion-title h3 {
    font-size: 1rem;
}

.accordion-icon {
    position: absolute;
    top: 15px;
    right: 20px;
}

.accordion-content p {
    padding: 0 20px 12px;
    font-size: 0.9rem;
}

.news-details {
    padding: 0 20px 20px;
}

.news-details p {
    font-size: 0.8rem;
}

.news-image {
    padding: 0 20px 12px;
}

.news-image img {
    border-radius: 6px;
}

.news-details {
    padding: 0 20px 20px;
}

/* お知らせ投稿フォーム */
.news-post-form {
    padding: 30px 25px;
}

.form-row {
    grid-template-columns: 1fr;
    gap: 15px;
}

.detail-row {
    grid-template-columns: 1fr;
    gap: 10px;
}

.form-actions {
    flex-direction: column;
    gap: 10px;
}

.btn {
    width: 100%;
    padding: 15px 25px;
}

.preview-container {
    margin: 30px auto 0;
}

.preview-content {
    padding: 20px;
}

.preview-accordion-header {
    padding: 20px 25px;
    gap: 15px;
}

.preview-accordion-content {
    padding: 0 25px 25px;
}

/* スマートフォン用のお知らせ投稿フォーム */
.news-post-form {
    padding: 20px 15px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px 12px;
    font-size: 0.9rem;
}

.file-upload-info {
    font-size: 0.8rem;
    padding: 8px;
}

.details-inputs {
    padding: 12px;
}

.detail-row input {
    padding: 8px 10px;
    font-size: 0.8rem;
}

.form-actions {
    margin-top: 30px;
    padding-top: 20px;
}

.btn {
    padding: 12px 20px;
    font-size: 0.9rem;
}

.preview-container {
    margin: 20px auto 0;
}

.preview-container h3 {
    padding: 15px 20px;
    font-size: 1.1rem;
}

.preview-content {
    padding: 15px;
}

.preview-accordion-header {
    padding: 15px 20px;
    gap: 12px;
    flex-direction: column;
    align-items: flex-start;
}

.preview-accordion-date {
    min-width: 50px;
    padding: 8px;
}

.preview-date-day {
    font-size: 1.1rem;
}

.preview-date-month {
    font-size: 0.7rem;
}

.preview-accordion-title h3 {
    font-size: 1rem;
}

.preview-accordion-content {
    padding: 0 20px 20px;
}

.preview-accordion-content p {
    font-size: 0.9rem;
    padding: 0 0 15px;
}

.preview-news-details p {
    font-size: 0.8rem;
}

.accordion-content li {
    font-size: 0.85rem;
    padding: 6px 0;
}

.news-header {
    flex-direction: column;
    gap: 20px;
}

.news-actions {
    align-self: stretch;
}

.news-actions .btn {
    width: 100%;
    text-align: center;
}

.news-detail-link .btn {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* お知らせ詳細ページのレスポンシブ対応 */
@media (max-width: 768px) {
    .news-detail-header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .news-detail-date {
        min-width: auto;
    }
    
    .detail-date-day {
        font-size: 2rem;
    }
    
    .news-detail-title {
        font-size: 1.5rem;
    }
    
    .news-detail-content {
        padding: 25px;
    }
    
    .news-detail-body h3 {
        font-size: 1.2rem;
    }
    
    .news-detail-summary p,
    .news-detail-content p {
        font-size: 1rem;
    }
    
    .news-navigation {
        padding: 20px 25px;
    }
    
    .nav-buttons {
        flex-direction: column;
    }
    
    .nav-buttons .btn {
        max-width: none;
    }
}

@media (max-width: 480px) {
    .news-detail-content {
        padding: 20px;
    }
    
    .news-detail-title {
        font-size: 1.3rem;
    }
    
    .detail-date-day {
        font-size: 1.8rem;
    }
    
    .news-detail-body h3 {
        font-size: 1.1rem;
    }
    
    .news-detail-summary p,
    .news-detail-content p {
        font-size: 0.95rem;
    }
    
    .news-detail-info {
        padding: 20px;
    }
    
    .news-detail-details p {
        font-size: 0.9rem;
    }
}

/* 工法・技術詳細ページのレスポンシブ対応 */
@media (max-width: 768px) {
    .tech-content {
        padding: 30px 20px;
        margin: 0 15px;
    }
    
    .tech-content h2 {
        font-size: 1.6rem;
    }
    
    .tech-content > p {
        font-size: 1rem;
    }
    
    .tech-image-section {
        margin: 30px 0;
    }
    
    .tech-main-image {
        border-radius: 8px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .benefits ul {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .benefits li {
        padding: 15px 15px 15px 45px;
    }
    
    .back-btn {
        padding: 12px 25px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .tech-detail {
        padding: 40px 0;
    }
    
    .tech-content {
        padding: 20px 15px;
        margin: 0 10px;
    }
    
    .tech-content h2 {
        font-size: 1.4rem;
    }
    
    .tech-features h3,
    .benefits h3 {
        font-size: 1.3rem;
    }
    
    .feature-item h4 {
        font-size: 1.1rem;
    }
    
    .back-btn {
        width: 100%;
        justify-content: center;
    }
}