/*
Theme Name: myblog
Theme URI: http://portfolio.jonysystem.com
Author: futada
Description: A custom WordPress theme for my blog.
Version: 1.0
*/

:root {
    --bg: #f7f7f7;
    --panel: #ffffff;
    --accent: #111111;
    --muted: #888888;
}

/* ========== リセット & ベース設定 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', Arial, Meiryo, sans-serif;
    line-height: 1.8;
    color: var(--accent);
    background: var(--bg);
    min-height: 100vh;
}

/* ========== グローバルナビゲーション ========== */
global-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    background: var(--panel);
    border-bottom: 1px solid #e5e5e5;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.global-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 60px;
}

.global-nav__hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-left: auto;
    z-index: 10;
}

.global-nav__hamburger span {
    width: 100%;
    height: 3px;
    background: #333;
    transition: all 0.3s ease;
    display: block;
}

.global-nav__hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.global-nav__hamburger.active span:nth-child(2) {
    opacity: 0;
}

.global-nav__hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.global-nav__list {
    display: flex;
    list-style: none;
    gap: 2px;
    margin-left: auto;
}

.global-nav__list li a {
    display: block;
    padding: 8px 18px;
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    transition: all 200ms ease;
    border-radius: 4px;
}

.global-nav__list li a:hover {
    background: #f0f0f0;
    color: var(--accent);
}

.global-nav__list li a:active {
    background: #e8e8e8;
}

/* ========== メインコンテンツ ========== */
.blog-main {
    min-height: calc(100vh - 160px);
    padding: 60px 20px;
}
.blog-single{
    width: 90vw;
    margin: 0 auto;
}

.blog-container {
    max-width: 1200px;
    margin: 0 auto;
}

.blog-title {
    font-size: 3rem;
    color: var(--accent);
    text-align: center;
    margin-bottom: 50px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

/* ========== ブログカードグリッド ========== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.blog-card {
    background: var(--panel);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e5e5e5;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    border-color: #d0d0d0;
}

.blog-card__link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.blog-card__image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, #fafafa 0%, #e8e8e8 100%);
    position: relative;
}

.blog-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.blog-card:hover .blog-card__image img {
    transform: scale(1.1);
}

.blog-card__image--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-card__image--placeholder span {
    color: var(--muted);
    font-size: 1.2rem;
    font-weight: 500;
}

.blog-card__content {
    padding: 25px;
}

.blog-card__date {
    display: inline-block;
    font-size: 0.85rem;
    color: var(--muted);
    font-weight: 500;
    margin-bottom: 10px;
}

.blog-card__title {
    font-size: 1.4rem;
    color: var(--accent);
    margin-bottom: 15px;
    line-height: 1.4;
    font-weight: 600;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card__excerpt {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.7;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card__readmore {
    display: inline-block;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.blog-card:hover .blog-card__readmore {
    color: var(--muted);
}

/* ========== ページネーション ========== */
.pagination {
    text-align: center;
    margin: 50px 0;
}

.pagination .nav-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.pagination .nav-links a,
.pagination .nav-links .current {
    display: inline-block;
    padding: 10px 18px;
    background: var(--panel);
    color: var(--accent);
    text-decoration: none;
    border-radius: 4px;
    border: 1px solid #e5e5e5;
    font-weight: 500;
    transition: all 0.3s ease;
}

.pagination .nav-links a:hover {
    background: #f0f0f0;
    border-color: #d0d0d0;
    transform: translateY(-2px);
}

.pagination .nav-links .current {
    background: var(--accent);
    color: var(--panel);
    border-color: var(--accent);
}

/* ========== 投稿なし表示 ========== */
.no-posts {
    text-align: center;
    color: var(--muted);
    font-size: 1.2rem;
    padding: 50px 20px;
}

/* ========== フッター ========== */
.blog-footer {
    background: var(--panel);
    color: var(--muted);
    border-top: 1px solid #e5e5e5;
    padding: 30px 20px;
    margin-top: auto;
}

.blog-footer__content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.blog-footer__content p {
    margin: 0;
    font-size: 0.9rem;
}

/* ========== タブレット対応 (768px以下) ========== */
@media (max-width: 768px) {
    .blog-title {
        font-size: 2.5rem;
    }

    .blog-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 25px;
    }

    .blog-card__title {
        font-size: 1.2rem;
    }

    .blog-main {
        padding: 40px 15px;
    }
}

/* ========== スマホ対応 (480px以下) ========== */
@media (max-width: 480px) {
    .global-nav__hamburger {
        display: flex;
    }

    .global-nav__list {
        position: absolute;
        top: 60px;
        right: -100%;
        width: 80%;
        max-width: 300px;
        flex-direction: column;
        background: var(--panel);
        border: 1px solid #e5e5e5;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        gap: 0;
        padding: 20px 0;
    }

    .global-nav__list.active {
        right: 0;
    }

    .global-nav__list li {
        border-bottom: 1px solid #eee;
    }

    .global-nav__list li:last-child {
        border-bottom: none;
    }

    .global-nav__list li a {
        padding: 15px 25px;
        border-radius: 0;
    }

    .blog-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .blog-card__image {
        height: 180px;
    }

    .blog-card__content {
        padding: 20px;
    }

    .blog-card__title {
        font-size: 1.1rem;
    }

    .blog-card__excerpt {
        font-size: 0.9rem;
    }

    .blog-main {
        padding: 30px 15px;
    }

    .pagination .nav-links a,
    .pagination .nav-links .current {
        padding: 8px 14px;
        font-size: 0.9rem;
    }
}