@charset "UTF-8";
/*
Theme Name: Pro Director Theme
Author: Professional DX Consultant
Description: Webディレクターのための高視認性ナレッジポータル
Version: 2.2
*/

/* ==========================================================================
   1. Design Tokens (Variables)
   ========================================================================== */
:root {
    --color-bg: #ffffff;
    --color-main: #2563EB;
    --color-main-light: #EFF6FF;
    --color-accent: #F97316;
    --color-text: #1F2937;
    --color-text-light: #6B7280;
    --color-border: #E5E7EB;
    --color-card-bg: #F9FAFB;
    --color-footer-bg: #0f172a;
    --font-sans: 'Inter', 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
}

/* ==========================================================================
   2. Reset & Base
   ========================================================================== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
img { max-width: 100%; height: auto; display: block; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================================================
   3. Header & Navigation (追従解除)
   ========================================================================== */
header {
    background: #ffffff;
    border-bottom: 1px solid var(--color-border);
    position: relative; /* 追従（sticky）を解除し、通常スクロールへ変更 */
    z-index: 100;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-main);
    letter-spacing: 0.05em;
}

.nav-links ul { display: flex; gap: 24px; list-style: none; }
.nav-links a { font-size: 0.9rem; font-weight: 600; }
.nav-links a:hover { color: var(--color-main); }

@media (max-width: 1024px) {
    .nav-links { display: none; }
}

/* ==========================================================================
   4. Hero Section (Main Visual)
   ========================================================================== */
.advanced-hero {
    position: relative;
    padding: 140px 0 160px;
    background-color: #050b1a;
    background-image: 
        radial-gradient(at 10% 10%, rgba(37, 99, 235, 0.15) 0px, transparent 50%),
        radial-gradient(at 90% 90%, rgba(139, 92, 246, 0.15) 0px, transparent 50%);
    color: #ffffff;
    text-align: center;
}

.hero-main-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 25px;
    background: linear-gradient(120deg, #ffffff 0%, #dbeafe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-lead { font-size: 1.25rem; color: #94a3b8; margin-bottom: 45px; }

.btn-primary {
    display: inline-block;
    padding: 16px 40px;
    background: var(--color-accent);
    color: #fff !important;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 10px 25px rgba(249, 115, 22, 0.3);
}

/* ==========================================================================
   5. Mobile Quick Nav
   ========================================================================== */
.mobile-quick-nav { display: none; }

@media (max-width: 1024px) {
    .mobile-quick-nav { display: block; padding-bottom: 40px; }
    .mobile-search-box .search-form { display: flex; background: #F3F4F6; border-radius: 12px; padding: 4px; border: 1px solid var(--color-border); margin-bottom: 20px; }
    .mobile-search-box .search-field { flex-grow: 1; border: none; background: transparent; padding: 12px; font-size: 1rem; }
    .mobile-search-box .search-submit { background: var(--color-main); color: #fff; border: none; border-radius: 8px; padding: 0 15px; font-weight: bold; }
    
    .mobile-category-chips { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 10px; scrollbar-width: none; }
    .mobile-category-chips::-webkit-scrollbar { display: none; }
    .mobile-category-chips a { white-space: nowrap; background: #fff; border: 1px solid var(--color-border); padding: 8px 18px; border-radius: 50px; font-size: 0.85rem; font-weight: 600; }
}

/* ==========================================================================
   6. Main Content Layout
   ========================================================================== */
.blog-section, .post-section {
    padding: 60px 0 100px;
}

.main-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 60px;
    align-items: start;
}

@media (max-width: 1024px) {
    .main-grid { grid-template-columns: 1fr; gap: 40px; }
    .widget_search, .widget_categories { display: none; }
}

/* ==========================================================================
   7. Blog Cards
   ========================================================================== */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 40px; }
.blog-card { background: #fff; border: 1px solid var(--color-border); border-radius: 16px; overflow: hidden; transition: 0.3s; }
.blog-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); }
.blog-image img { width: 100%; height: 220px; object-fit: cover; }
.blog-content { padding: 24px; }
.blog-meta { display: flex; justify-content: space-between; margin-bottom: 15px; font-size: 0.8rem; }
.category { color: var(--color-main); font-weight: 700; background: var(--color-main-light); padding: 3px 10px; border-radius: 4px; }
.blog-title { font-size: 1.2rem; font-weight: 700; line-height: 1.5; }

/* ==========================================================================
   8. Single Post (Column Detail) & Editor Content
   ========================================================================== */
.post-header { margin-bottom: 30px; }
.post-title { font-size: 2.2rem; font-weight: 800; line-height: 1.4; margin: 15px 0 25px; color: var(--color-text); }
.post-thumbnail { margin-bottom: 40px; border-radius: 12px; overflow: hidden; }

/* WordPress エディター内の装飾 (H2, H3, H4) */
.entry-content { font-size: 1.05rem; line-height: 1.8; color: var(--color-text); }
.entry-content p { margin-bottom: 1.5rem; }
.entry-content img { border-radius: 8px; margin: 2rem 0; }

.entry-content h2 {
    font-size: 1.6rem;
    font-weight: 700;
    padding: 1.2rem 1.5rem;
    margin: 4rem 0 2rem;
    background-color: var(--color-main-light);
    border-left: 6px solid var(--color-main);
    border-radius: 0 8px 8px 0;
}

.entry-content h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin: 3rem 0 1.5rem;
    padding-bottom: 0.6rem;
    border-bottom: 2px solid var(--color-border);
    position: relative;
}

.entry-content h3::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background-color: var(--color-main);
}

.entry-content h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 2.5rem 0 1rem;
    padding-left: 1rem;
    border-left: 4px solid var(--color-text-light);
}

@media (max-width: 768px) {
    .post-title { font-size: 1.5rem; }
    .entry-content h2 { font-size: 1.3rem; padding: 1rem; }
    .entry-content h3 { font-size: 1.2rem; }
    .entry-content h4 { font-size: 1.1rem; }
}

/* ==========================================================================
   9. Sidebar Widgets
   ========================================================================== */
.widget { background: var(--color-card-bg); padding: 24px; border-radius: 12px; margin-bottom: 30px; border: 1px solid var(--color-border); }
.widget-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--color-main); }
.widget ul { list-style: none; }
.widget li { margin-bottom: 12px; font-size: 0.95rem; }

/* ==========================================================================
   10. Footer (Minimalist & Centered)
   ========================================================================== */
.site-footer { background-color: var(--color-footer-bg); color: #94a3b8; padding: 100px 0 0; margin-top: 100px; text-align: center; }
.footer-inner { padding-bottom: 80px; }
.footer-logo { font-size: 1.8rem; font-weight: 800; color: #ffffff; letter-spacing: 0.1em; margin-bottom: 24px; }
.footer-tagline { font-size: 1rem; line-height: 2; color: #cbd5e1; max-width: 600px; margin: 0 auto; }
.footer-bottom { padding: 40px 0; background: rgba(0, 0, 0, 0.2); border-top: 1px solid rgba(255, 255, 255, 0.05); }
.copyright { font-size: 0.8rem; color: #64748b; }

/* ==========================================================================
   11. Latest Articles (Single Post Bottom)
   ========================================================================== */
.latest-articles-section {
    padding: 80px 0;
    background-color: var(--color-card-bg); /* 本文エリア（白）と区別するため薄いグレー背景に */
    border-top: 1px solid var(--color-border);
}

.latest-articles-section .section-title {
    font-size: 1.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 40px;
    color: var(--color-text);
    letter-spacing: 0.05em;
}

/* スマホ閲覧時の微調整 */
@media (max-width: 768px) {
    .latest-articles-section {
        padding: 60px 0;
    }
    .latest-articles-section .section-title {
        font-size: 1.3rem;
    }
}

/* ==========================================================================
   12. Sidebar Digest (Latest Posts)
   ========================================================================== */
.digest-list {
    list-style: none;
    padding: 0;
}

.digest-item {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--color-border);
}

.digest-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.digest-item a {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.digest-item a:hover .digest-post-title {
    color: var(--color-main);
}

.digest-thumb {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: 6px;
    overflow: hidden;
    background: #f3f4f6;
}

.digest-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.digest-info {
    flex-grow: 1;
}

.digest-post-title {
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 6px;
    color: var(--color-text);
    /* 3行以上は省略する設定 */
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

.digest-date {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-light);
    font-weight: 600;
}

/* サイドバー内の既存ウィジェットの余白調整 */
.widget_categories ul li {
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border);
    font-weight: 600;
    font-size: 0.9rem;
}