/*
Theme Name: KINGSTONE
Theme URI: https://kings-z.com/blog/
Author: KINGSTONE Corporation
Author URI: https://kings-z.com/
Description: 金石実業株式会社公式ブログテーマ。メインウェブサイトのデザインを継承したプレミアムWordPressテーマ。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.8.3
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: kingstone
Tags: blog, corporate, one-column, two-columns, right-sidebar, custom-colors, custom-menu, featured-images, sticky-post, translation-ready

KINGSTONE Blog Theme - Inherits main website design
Color Scheme: Yellow-Green (#7CB342) & Red (#E53935)
*/

/* ===== CSS Variables (Inherited from Main Site) ===== */
:root {
    /* Primary Colors */
    --color-primary: #7CB342;
    --color-primary-light: #9CCC65;
    --color-primary-dark: #558B2F;
    --color-primary-rgb: 124, 179, 66;

    /* Accent Colors */
    --color-accent: #E53935;
    --color-accent-light: #EF5350;
    --color-accent-dark: #C62828;
    --color-accent-rgb: 229, 57, 53;

    /* Neutral Colors */
    --color-dark: #112233;
    --color-gray-900: #1a1a1a;
    --color-gray-800: #2d2d2d;
    --color-gray-700: #424242;
    --color-gray-600: #666666;
    --color-gray-500: #888888;
    --color-gray-400: #aaaaaa;
    --color-gray-300: #cccccc;
    --color-gray-200: #e5e5e5;
    --color-gray-100: #f5f5f5;
    --color-white: #ffffff;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    --gradient-dark: linear-gradient(135deg, #0a1520 0%, #112233 50%, #1a2a3a 100%);

    /* Typography */
    --font-primary: 'Noto Sans JP', 'Hiragino Sans', sans-serif;
    --font-heading: 'Montserrat', var(--font-primary);
    --font-serif: 'Noto Serif JP', serif;
    --font-size-base: 16px;
    --line-height-base: 1.8;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    --spacing-5xl: 128px;

    /* Layout */
    --container-max: 1400px;
    --container-padding: 60px;
    --header-height: 90px;
    --sidebar-width: 320px;

    /* Animation */
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.6s var(--ease-out-expo);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.16);
    --shadow-glow: 0 0 40px rgba(var(--color-primary-rgb), 0.3);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: var(--line-height-base);
    color: var(--color-dark);
    background-color: var(--color-white);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--color-primary);
}

ul, ol {
    list-style: none;
}

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

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: none;
}

/* ===== Container ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

@media (max-width: 1024px) {
    .container { padding: 0 40px; }
}

@media (max-width: 768px) {
    .container { padding: 0 24px; }
}

/* ===== Header (Blog Version) ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.4s var(--ease-out-expo);
}

.site-header.scrolled {
    height: 70px;
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.header-logo a {
    display: flex;
    align-items: center;
}

.header-logo .logo-svg {
    height: 50px;
    width: auto;
}

.header-logo .logo-text {
    fill: var(--color-dark);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-dark);
    position: relative;
    padding: var(--spacing-sm) 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s var(--ease-out-expo);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a.active {
    color: var(--color-primary);
}

.header-contact {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.3);
}

.header-contact:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.4);
    color: var(--color-white);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    width: 50px;
    height: 50px;
    cursor: pointer;
    position: relative;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--color-dark);
    position: absolute;
    left: 11px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle span:nth-child(1) { top: 16px; }
.mobile-menu-toggle span:nth-child(2) { top: 24px; }
.mobile-menu-toggle span:nth-child(3) { top: 32px; }

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg);
    top: 24px;
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg);
    top: 24px;
}

@media (max-width: 1024px) {
    .header-nav { display: none; }
    .mobile-menu-toggle { display: block; }
    .site-header { height: 70px; }
    .header-inner { padding: 0 20px; }
    .header-logo .logo-svg { height: 28px; }
}

/* ===== Mobile Navigation ===== */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(17, 34, 51, 0.98);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    padding: 80px 20px;
}

.mobile-nav ul {
    text-align: center;
}

.mobile-nav ul li {
    margin-bottom: 24px;
}

.mobile-nav-link {
    font-size: 24px;
    font-weight: 600;
    color: #fff;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease, opacity 0.4s ease, transform 0.4s ease;
}

.mobile-nav-overlay.active .mobile-nav-link {
    opacity: 1;
    transform: translateY(0);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--color-primary);
}

/* ===== Blog Page Hero ===== */
.blog-hero {
    position: relative;
    padding: calc(var(--header-height) + var(--spacing-4xl)) 0 var(--spacing-4xl);
    background-color: var(--color-dark);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--color-white);
    text-align: center;
}

.blog-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(17, 34, 51, 0.85) 0%, rgba(17, 34, 51, 0.7) 100%);
    z-index: 1;
}

.blog-hero .container {
    position: relative;
    z-index: 2;
}

.blog-hero h1 {
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
}

.blog-hero p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .blog-hero {
        padding: calc(70px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    }
    .blog-hero h1 {
        font-size: 32px;
    }
    .blog-hero p {
        font-size: 16px;
    }
}

/* ===== Blog Layout ===== */
.blog-content {
    padding: var(--spacing-4xl) 0;
}

.blog-layout {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: var(--spacing-3xl);
}

@media (max-width: 1024px) {
    .blog-layout {
        grid-template-columns: 1fr;
    }
}

/* ===== Blog Article List ===== */
.blog-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.blog-card {
    display: flex;
    gap: var(--spacing-xl);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s var(--ease-out-expo);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.blog-card-image {
    flex-shrink: 0;
    width: 280px;
    height: 200px;
    overflow: hidden;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out-expo);
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.05);
}

.blog-card-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-lg);
    flex: 1;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.blog-card-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--gradient-primary);
    color: var(--color-white);
    font-size: 12px;
    font-weight: 600;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.blog-card-date {
    font-size: 13px;
    color: var(--color-gray-500);
}

.blog-card-title {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
    transition: color var(--transition-base);
}

.blog-card:hover .blog-card-title {
    color: var(--color-primary);
}

.blog-card-excerpt {
    font-size: 14px;
    color: var(--color-gray-600);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-more {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
}

.blog-card-more svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-base);
}

.blog-card:hover .blog-card-more svg {
    transform: translateX(4px);
}

@media (max-width: 768px) {
    .blog-card {
        flex-direction: column;
    }
    .blog-card-image {
        width: 100%;
        height: 180px;
    }
    .blog-card-title {
        font-size: 18px;
    }
}

/* ===== Sidebar ===== */
.blog-sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-xl));
}

.sidebar-widget {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.sidebar-widget-title {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-gray-200);
    position: relative;
}

.sidebar-widget-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--gradient-primary);
}

/* Search Widget */
.search-form {
    display: flex;
    gap: var(--spacing-sm);
}

.search-form input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-base);
}

.search-form input:focus {
    border-color: var(--color-primary);
}

.search-form button {
    padding: 12px 16px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.search-form button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Category Widget */
.category-list li {
    margin-bottom: var(--spacing-sm);
}

.category-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    color: var(--color-gray-700);
    border-bottom: 1px solid var(--color-gray-100);
    transition: all var(--transition-base);
}

.category-list a:hover {
    color: var(--color-primary);
    padding-left: var(--spacing-sm);
}

.category-list .count {
    font-size: 12px;
    color: var(--color-gray-400);
    background: var(--color-gray-100);
    padding: 2px 8px;
    border-radius: 50px;
}

/* Recent Posts Widget */
.recent-posts li {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-100);
}

.recent-posts li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.recent-post-image {
    flex-shrink: 0;
    width: 80px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.recent-post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.recent-post-content {
    flex: 1;
}

.recent-post-title {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
    color: var(--color-dark);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-base);
}

.recent-posts a:hover .recent-post-title {
    color: var(--color-primary);
}

.recent-post-date {
    font-size: 12px;
    color: var(--color-gray-500);
    margin-top: var(--spacing-xs);
}

/* Tags Widget */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag-cloud a {
    display: inline-block;
    padding: 6px 14px;
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    font-size: 13px;
    border-radius: 50px;
    transition: all var(--transition-base);
}

.tag-cloud a:hover {
    background: var(--gradient-primary);
    color: var(--color-white);
}

/* ===== Single Article ===== */
.article-header {
    padding: calc(var(--header-height) + var(--spacing-4xl)) 0 var(--spacing-3xl);
    background: var(--gradient-dark);
    color: var(--color-white);
}

.article-header .container {
    max-width: 900px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.article-category {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-primary-light);
    font-size: 12px;
    font-weight: 600;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-date {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.article-title {
    font-family: var(--font-serif);
    font-size: 42px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--spacing-lg);
}

.article-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.article-author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.article-author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-author-info .name {
    font-weight: 600;
    font-size: 15px;
}

.article-author-info .role {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 768px) {
    .article-header {
        padding: calc(70px + var(--spacing-3xl)) 0 var(--spacing-2xl);
    }
    .article-title {
        font-size: 28px;
    }
}

/* ===== Article Content ===== */
.article-content {
    padding: var(--spacing-4xl) 0;
}

.article-content .container {
    max-width: 800px;
}

.article-featured-image {
    margin: calc(-1 * var(--spacing-4xl)) 0 var(--spacing-3xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.article-featured-image img {
    width: 100%;
    height: auto;
}

.article-body {
    font-size: 17px;
    line-height: 2;
    color: var(--color-gray-800);
}

.article-body h2 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 700;
    margin: var(--spacing-3xl) 0 var(--spacing-lg);
    padding-left: var(--spacing-md);
    border-left: 4px solid var(--color-primary);
}

.article-body h3 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 600;
    margin: var(--spacing-2xl) 0 var(--spacing-md);
}

.article-body p {
    margin-bottom: var(--spacing-lg);
}

.article-body a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-body a:hover {
    color: var(--color-primary-dark);
}

.article-body ul,
.article-body ol {
    margin: var(--spacing-lg) 0;
    padding-left: var(--spacing-xl);
}

.article-body ul {
    list-style: disc;
}

.article-body ol {
    list-style: decimal;
}

.article-body li {
    margin-bottom: var(--spacing-sm);
}

.article-body blockquote {
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-xl);
    background: var(--color-gray-100);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--color-gray-700);
}

.article-body pre {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background: var(--color-dark);
    color: var(--color-gray-100);
    border-radius: var(--radius-md);
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    line-height: 1.6;
}

.article-body code {
    background: var(--color-gray-100);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9em;
}

.article-body pre code {
    background: none;
    padding: 0;
}

.article-body img {
    margin: var(--spacing-2xl) 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.article-body figure {
    margin: var(--spacing-2xl) 0;
}

.article-body figcaption {
    text-align: center;
    font-size: 14px;
    color: var(--color-gray-500);
    margin-top: var(--spacing-sm);
}

/* ===== Article Footer ===== */
.article-footer {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-gray-200);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.article-tags a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    font-size: 13px;
    border-radius: 50px;
    transition: all var(--transition-base);
}

.article-tags a:hover {
    background: var(--gradient-primary);
    color: var(--color-white);
}

.article-share {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.article-share-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.share-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.share-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-gray-100);
    color: var(--color-gray-600);
    transition: all var(--transition-base);
    cursor: pointer;
}

.share-button:hover {
    transform: translateY(-2px);
    color: var(--color-white);
}

.share-button.twitter:hover { background: #1DA1F2; }
.share-button.facebook:hover { background: #4267B2; }
.share-button.line:hover { background: #00B900; }
.share-button.linkedin:hover { background: #0077B5; }

.share-button svg {
    width: 18px;
    height: 18px;
}

/* ===== Related Articles ===== */
.related-articles {
    padding: var(--spacing-4xl) 0;
    background: var(--color-gray-100);
}

.related-articles-title {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.related-articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

@media (max-width: 1024px) {
    .related-articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .related-articles-grid {
        grid-template-columns: 1fr;
    }
}

.related-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s var(--ease-out-expo);
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.related-card-image {
    height: 180px;
    overflow: hidden;
}

.related-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out-expo);
}

.related-card:hover .related-card-image img {
    transform: scale(1.05);
}

.related-card-content {
    padding: var(--spacing-lg);
}

.related-card-title {
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--color-dark);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-base);
}

.related-card:hover .related-card-title {
    color: var(--color-primary);
}

.related-card-date {
    font-size: 13px;
    color: var(--color-gray-500);
    margin-top: var(--spacing-sm);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-3xl);
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-700);
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.pagination a:hover {
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.pagination .current {
    background: var(--gradient-primary);
    color: var(--color-white);
}

.pagination .prev,
.pagination .next {
    gap: var(--spacing-xs);
}

.pagination svg {
    width: 16px;
    height: 16px;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--gradient-dark);
    color: var(--color-white);
    padding: var(--spacing-4xl) 0 var(--spacing-2xl);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

@media (max-width: 1024px) {
    .footer-main {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: var(--spacing-md);
    line-height: 1.8;
}

.footer-logo .logo-svg {
    height: 40px;
    width: auto;
}

.footer-nav h4 {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-lg);
}

.footer-nav ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-nav ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-base);
}

.footer-nav ul li a:hover {
    color: var(--color-primary);
}

.footer-social {
    margin-top: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.social-label {
    font-size: 12px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.social-icons {
    display: flex;
    gap: var(--spacing-sm);
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-base);
}

.social-icon:hover {
    transform: translateY(-3px);
    color: var(--color-white);
}

.social-icon svg {
    width: 18px;
    height: 18px;
}

.social-twitter:hover { background: #000; }
.social-facebook:hover { background: #1877F2; }
.social-line:hover { background: #00B900; }
.social-linkedin:hover { background: #0A66C2; }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

.copyright {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-primary);
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 900;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.4);
    color: var(--color-white);
}

.btn-outline {
    background: transparent;
    color: var(--color-dark);
    border: 2px solid var(--color-gray-300);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

/* ===== No Results ===== */
.no-results {
    text-align: center;
    padding: var(--spacing-4xl);
    color: var(--color-gray-500);
}

.no-results h2 {
    font-size: 24px;
    margin-bottom: var(--spacing-md);
}

.no-results p {
    font-size: 16px;
}

/* ===== Loading Animation ===== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4xl);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Breadcrumb ===== */
.breadcrumb {
    background: var(--color-gray-100);
    padding: var(--spacing-md) 0;
}

.breadcrumb-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 13px;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin-left: var(--spacing-sm);
    color: var(--color-gray-400);
}

.breadcrumb-item a {
    color: var(--color-gray-600);
    transition: color var(--transition-base);
}

.breadcrumb-item a:hover {
    color: var(--color-primary);
}

.breadcrumb-item.active {
    color: var(--color-gray-500);
}

/* ===== Search Form Large ===== */
.search-form-section {
    padding: var(--spacing-2xl) 0;
    background: var(--color-white);
}

.search-form-large {
    display: flex;
    gap: var(--spacing-md);
    max-width: 600px;
    margin: 0 auto;
}

.search-form-large .search-field {
    flex: 1;
    padding: 16px 20px;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    font-size: 16px;
    transition: border-color var(--transition-base);
}

.search-form-large .search-field:focus {
    border-color: var(--color-primary);
    outline: none;
}

.search-form-large .search-submit {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 16px 28px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.search-form-large .search-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== Reading Time ===== */
.article-reading-time {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

.article-reading-time::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    margin-right: var(--spacing-sm);
    vertical-align: middle;
}

/* ===== Screen Reader Text ===== */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}

.screen-reader-text:focus {
    background-color: var(--color-gray-100);
    clip: auto !important;
    clip-path: none;
    color: var(--color-dark);
    display: block;
    font-size: 14px;
    font-weight: 600;
    height: auto;
    left: 5px;
    line-height: normal;
    padding: 15px 23px 14px;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: 100000;
}

/* ===== Skip Link ===== */
.skip-link {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
}

/* ===== Comments Section ===== */
.comments-section {
    padding: var(--spacing-4xl) 0;
    background: var(--color-gray-100);
}

.comments-section .container {
    max-width: 800px;
}

/* ===== Page Links ===== */
.page-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
    font-size: 14px;
}

.page-links a,
.page-links span.post-page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 var(--spacing-sm);
    background: var(--color-gray-100);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.page-links a:hover {
    background: var(--gradient-primary);
    color: var(--color-white);
}

.page-links span.post-page-numbers.current {
    background: var(--gradient-primary);
    color: var(--color-white);
}

/* ===== WordPress Core Styles ===== */
.wp-caption {
    max-width: 100%;
    margin-bottom: var(--spacing-lg);
}

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

.wp-caption-text {
    font-size: 14px;
    color: var(--color-gray-500);
    text-align: center;
    margin-top: var(--spacing-sm);
}

.alignleft {
    float: left;
    margin-right: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.alignright {
    float: right;
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.aligncenter {
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-lg);
}

.alignwide {
    margin-left: calc(-1 * var(--spacing-2xl));
    margin-right: calc(-1 * var(--spacing-2xl));
    max-width: calc(100% + var(--spacing-4xl));
}

.alignfull {
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    max-width: 100vw;
    width: 100vw;
}

/* ===== Sticky Post ===== */
.sticky .blog-card-category::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    margin-right: var(--spacing-xs);
}

/* ===== Gallery ===== */
.gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.gallery-columns-2 {
    grid-template-columns: repeat(2, 1fr);
}

.gallery-columns-4 {
    grid-template-columns: repeat(4, 1fr);
}

.gallery-item {
    margin: 0;
}

.gallery-item img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.gallery-caption {
    font-size: 13px;
    color: var(--color-gray-500);
    text-align: center;
    margin-top: var(--spacing-xs);
}

@media (max-width: 768px) {
    .gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    .gallery-columns-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== WordPress Block Editor Styles ===== */
.wp-block-button .wp-block-button__link {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    transition: all var(--transition-base);
}

.wp-block-button .wp-block-button__link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.wp-block-quote {
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-xl);
    background: var(--color-gray-100);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.wp-block-quote p {
    font-style: italic;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
}

.wp-block-quote cite {
    font-size: 14px;
    color: var(--color-gray-500);
}

.wp-block-pullquote {
    padding: var(--spacing-2xl);
    border-top: 3px solid var(--color-primary);
    border-bottom: 3px solid var(--color-primary);
    text-align: center;
}

.wp-block-pullquote blockquote {
    margin: 0;
}

.wp-block-pullquote p {
    font-family: var(--font-serif);
    font-size: 24px;
    line-height: 1.6;
}

.wp-block-separator {
    border: none;
    border-top: 1px solid var(--color-gray-200);
    margin: var(--spacing-2xl) 0;
}

.wp-block-separator.is-style-wide {
    border-top-width: 3px;
}

.wp-block-separator.is-style-dots {
    border: none;
    text-align: center;
}

.wp-block-separator.is-style-dots::before {
    content: '...';
    font-size: 24px;
    letter-spacing: 1em;
    color: var(--color-gray-400);
}

.wp-block-table {
    margin-bottom: var(--spacing-lg);
}

.wp-block-table table {
    width: 100%;
    border-collapse: collapse;
}

.wp-block-table th,
.wp-block-table td {
    padding: var(--spacing-md);
    border: 1px solid var(--color-gray-200);
    text-align: left;
}

.wp-block-table th {
    background: var(--color-gray-100);
    font-weight: 600;
}

.wp-block-table.is-style-stripes tbody tr:nth-child(odd) {
    background: var(--color-gray-50);
}

/* ===== Logo Styles ===== */
.logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-link .logo-svg {
    height: 50px;
    width: auto;
}

.logo-blog-label {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-500);
    letter-spacing: 0.1em;
    padding: 4px 12px;
    border: 1px solid var(--color-gray-300);
    border-radius: 4px;
}

.site-header.scrolled .logo-blog-label {
    color: var(--color-gray-600);
}

@media (max-width: 768px) {
    .logo-link .logo-svg {
        height: 32px;
    }

    .logo-blog-label {
        font-size: 10px;
        padding: 2px 8px;
    }
}