/* ----------------------------------
   Single Page Layout
---------------------------------- */

html {
    width: 100%;
    overflow-x: hidden;
}

body {
    width: 100%;
    margin: 0;
    padding: 0;
}

.single-page {
    background: #fff;
    color: #000;
    padding: 80px 0;
}

.single-container {
    max-width: 900px;
    margin: 0 auto;
}

.single-article {}

/* ----------------------------------
   Header
---------------------------------- */

.single-header {
    margin-bottom: 40px;
    border-bottom: 2px solid #00ff33;
    padding-bottom: 20px;
}

.single-title {
    font-size: 36px;
    margin-bottom: 20px;
}

.single-meta {
    display: flex;
    gap: 20px;
    font-size: 14px;
    color: #666;
}

/* ----------------------------------
   Thumbnail
---------------------------------- */

.single-thumbnail img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 40px;
}

/* ----------------------------------
   Content
---------------------------------- */

.single-content {
    line-height: 1.9;
    font-size: 16px;
}

/* ----------------------------------
   Footer
---------------------------------- */

.single-footer {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid #ddd;
}

.single-tags {
    margin-bottom: 20px;
}

/* ----------------------------------
   Back Button
---------------------------------- */

.single-back {
    margin-top: 60px;
    text-align: center;
}

.single-back-btn {
    display: inline-block;
    background: #000;
    color: #fff;
    padding: 12px 40px;
    border-radius: 4px;
    text-decoration: none;
}

.single-back-btn:hover {
    opacity: 0.8;
}
/* ==================== レスポンシブ対応 ==================== */

/* タブレット対応 (1024px以下) */
@media (max-width: 1024px) {
    .single-container {
        max-width: 800px;
        padding: 0 20px;
    }

    .single-title {
        font-size: 32px;
    }

    .single-content {
        font-size: 15px;
    }
}

/* タブレット対応 (768px以下) */
@media (max-width: 768px) {
    .single-page {
        padding: 60px 0;
    }

    .single-container {
        max-width: 100%;
        padding: 0 20px;
    }

    .single-title {
        font-size: 28px;
        margin-bottom: 15px;
    }

    .single-header {
        margin-bottom: 30px;
        padding-bottom: 15px;
    }

    .single-meta {
        gap: 15px;
        font-size: 12px;
        flex-direction: column;
    }

    .single-thumbnail img {
        margin-bottom: 30px;
    }

    .single-content {
        font-size: 14px;
        line-height: 1.8;
    }

    .single-footer {
        margin-top: 40px;
        padding-top: 15px;
    }

    .single-back {
        margin-top: 40px;
    }

    .single-back-btn {
        padding: 10px 30px;
        font-size: 14px;
    }
}

/* スマホ対応 (600px以下) */
@media (max-width: 600px) {
    .single-page {
        padding: 40px 0;
    }

    .single-container {
        max-width: 100%;
        padding: 0 15px;
    }

    .single-title {
        font-size: 22px;
        margin-bottom: 12px;
    }

    .single-header {
        margin-bottom: 20px;
        padding-bottom: 12px;
        border-bottom: 2px solid #00ff33;
    }

    .single-meta {
        gap: 10px;
        font-size: 11px;
        flex-direction: column;
    }

    .single-thumbnail img {
        margin-bottom: 20px;
        border-radius: 6px;
    }

    .single-content {
        font-size: 13px;
        line-height: 1.7;
    }

    .single-content h2,
    .single-content h3 {
        font-size: 18px;
        margin-top: 20px;
        margin-bottom: 10px;
    }

    .single-content p {
        margin-bottom: 12px;
    }

    .single-footer {
        margin-top: 30px;
        padding-top: 12px;
    }

    .single-tags {
        margin-bottom: 15px;
    }

    .single-back {
        margin-top: 30px;
    }

    .single-back-btn {
        padding: 10px 25px;
        font-size: 13px;
    }
}

/* 小さいスマホ対応 (480px以下) */
@media (max-width: 480px) {
    .single-container {
        padding: 0 12px;
    }

    .single-title {
        font-size: 18px;
    }

    .single-meta {
        font-size: 10px;
        gap: 8px;
    }

    .single-content {
        font-size: 12px;
        line-height: 1.6;
    }

    .single-content h2,
    .single-content h3 {
        font-size: 16px;
        margin-top: 15px;
        margin-bottom: 8px;
    }

    .single-back-btn {
        padding: 8px 20px;
        font-size: 12px;
    }
}