/* ============================================================
   Walking Scenery — WordPress Theme Main Stylesheet
   设计系统 + 布局 + 组件 + 响应式 + WordPress 兼容
   ============================================================ */

/* ========================================
   Design Tokens
   ======================================== */

:root {
    /* Warm-tinted neutrals — like fine paper */
    --color-bg:         oklch(97.5% 0.004 85);
    --color-surface:    oklch(99% 0.002 85);
    --color-border:     oklch(88% 0.005 85);
    --color-border-subtle: oklch(92% 0.003 85);

    /* Text tones */
    --color-text:       oklch(22% 0.012 85);
    --color-text-soft:  oklch(42% 0.008 85);
    --color-text-muted: oklch(58% 0.005 85);

    /* Accent — muted sage-blue */
    --color-accent:     oklch(48% 0.08 245);
    --color-accent-hover: oklch(42% 0.09 245);
    --color-accent-subtle: oklch(92% 0.03 245);

    /* Semantic */
    --color-selection:  oklch(88% 0.06 85 / 0.4);

    /* Typography */
    --font-heading: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
    --font-body:    'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
    --font-mono:    'SF Mono', 'Fira Code', 'Source Code Pro', Consolas, monospace;

    /* Type scale — perfect fourth (1.333) */
    --text-xs:    clamp(0.7rem, 0.65rem + 0.25vw, 0.75rem);
    --text-sm:    clamp(0.8rem, 0.75rem + 0.25vw, 0.875rem);
    --text-base:  clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
    --text-md:    clamp(1.1rem, 1rem + 0.5vw, 1.2rem);
    --text-lg:    clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-xl:    clamp(1.6rem, 1.35rem + 1.25vw, 2.1rem);
    --text-2xl:   clamp(2rem, 1.6rem + 2vw, 2.8rem);
    --text-3xl:   clamp(2.5rem, 1.9rem + 3vw, 3.8rem);

    /* Line heights */
    --leading-tight:  1.2;
    --leading-snug:   1.35;
    --leading-normal: 1.6;
    --leading-relaxed: 1.75;

    /* Spacing — 4pt base */
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-5:  1.25rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;

    /* Shadows — subtle, natural */
    --shadow-sm: 0 1px 2px oklch(0% 0 0 / 0.04);
    --shadow-md: 0 2px 8px oklch(0% 0 0 / 0.06);
    --shadow-lg: 0 4px 16px oklch(0% 0 0 / 0.08);

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}

/* ========================================
   Reset & Base
   ======================================== */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-weight: 400;
}

::selection {
    background: var(--color-selection);
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out-expo);
}
a:hover {
    color: var(--color-accent-hover);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: var(--leading-snug);
    letter-spacing: -0.01em;
    color: var(--color-text);
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

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

hr {
    border: none;
    height: 1px;
    background: var(--color-border);
    margin: var(--space-12) 0;
}

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--color-border-subtle);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-sm);
    font-variant-ligatures: none;
}

pre {
    background: oklch(20% 0.01 85);
    color: oklch(95% 0.005 85);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin: var(--space-6) 0;
}
pre code {
    background: none;
    padding: 0;
    color: inherit;
}

blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: var(--space-6);
    margin: var(--space-8) 0;
    color: var(--color-text-soft);
    font-style: italic;
    font-size: var(--text-md);
}

/* ========================================
   Layout — Site Container
   ======================================== */

.site {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
}

/* ========================================
   Header
   ======================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: oklch(97.5% 0.004 85 / 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--duration-normal) var(--ease-out-expo),
                box-shadow var(--duration-normal) var(--ease-out-expo);
}

.site-header.scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    max-width: 1160px;
    margin: 0 auto;
    padding: var(--space-4) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.site-branding {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.site-title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 0.02em;
    line-height: 1;
}

.site-title a {
    color: inherit;
    transition: opacity var(--duration-fast) var(--ease-out-expo);
}
.site-title a:hover {
    opacity: 0.7;
    color: inherit;
}

/* Custom logo */
.site-logo-link,
.custom-logo-link {
    display: inline-block;
    line-height: 0;
    text-decoration: none;
    transition: opacity var(--duration-fast) var(--ease-out-expo),
                transform var(--duration-fast) var(--ease-out-expo);
}
.site-logo-link:hover,
.custom-logo-link:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}
.site-logo-link:focus-visible,
.custom-logo-link:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
    border-radius: 4px;
}
.custom-logo,
.site-logo {
    display: block;
    width: 168px;
    height: auto;
}

.site-tagline {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* Navigation */
.main-navigation {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-menu,
#navMenu {
    display: flex;
    list-style: none;
    gap: var(--space-1);
    margin: 0;
    padding: 0;
}

.nav-menu a,
#navMenu a {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: 400;
    color: var(--color-text-soft);
    border-radius: var(--radius-md);
    transition: color var(--duration-fast) var(--ease-out-expo),
                background var(--duration-fast) var(--ease-out-expo);
}
.nav-menu a:hover,
#navMenu a:hover,
.nav-menu a.active,
#navMenu a.active,
.nav-menu .current-menu-item > a,
#navMenu .current-menu-item > a,
.nav-menu .current_page_item > a {
    color: var(--color-text);
    background: var(--color-border-subtle);
}

/* Search toggle */
.search-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-text-soft);
    cursor: pointer;
    transition: color var(--duration-fast) var(--ease-out-expo),
                background var(--duration-fast) var(--ease-out-expo);
    margin-left: var(--space-2);
}
.search-toggle:hover {
    color: var(--color-text);
    background: var(--color-border-subtle);
}
.search-toggle svg {
    width: 18px;
    height: 18px;
}

/* Search dropdown */
.search-form {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: var(--space-6);
    width: 300px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-4);
    display: flex;
    gap: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--duration-normal) var(--ease-out-expo),
                visibility var(--duration-normal) var(--ease-out-expo),
                transform var(--duration-normal) var(--ease-out-expo);
}
.search-form.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.search-form input {
    flex: 1;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    background: var(--color-bg);
    color: var(--color-text);
    outline: none;
    transition: border-color var(--duration-fast) var(--ease-out-expo);
}
.search-form input:focus {
    border-color: var(--color-accent);
}
.search-form input::placeholder {
    color: var(--color-text-muted);
}

.search-form button {
    padding: var(--space-2) var(--space-4);
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-out-expo);
}
.search-form button:hover {
    background: var(--color-accent-hover);
}

/* Custom search form (404 / search page) */
.search-form-custom {
    display: flex;
    gap: var(--space-2);
    max-width: 400px;
    margin: var(--space-6) 0;
}
.search-form-custom input {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-base);
    background: var(--color-surface);
    color: var(--color-text);
    outline: none;
    transition: border-color var(--duration-fast) var(--ease-out-expo);
}
.search-form-custom input:focus {
    border-color: var(--color-accent);
}
.search-form-custom button {
    padding: var(--space-3) var(--space-6);
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-out-expo);
}
.search-form-custom button:hover {
    background: var(--color-accent-hover);
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text);
}
.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: currentColor;
    position: relative;
    transition: background var(--duration-fast) var(--ease-out-expo);
}
.menu-toggle span::before,
.menu-toggle span::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: currentColor;
    transition: transform var(--duration-normal) var(--ease-out-expo);
}
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after  { top: 6px; }

.menu-toggle.active span { background: transparent; }
.menu-toggle.active span::before { transform: translateY(6px) rotate(45deg); }
.menu-toggle.active span::after  { transform: translateY(-6px) rotate(-45deg); }

/* ========================================
   Main Content Area — Blog Home
   ======================================== */

.site-content {
    flex: 1;
    max-width: 1160px;
    width: 100%;
    margin: 0 auto;
    padding: var(--space-8) var(--space-6) var(--space-20);
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: var(--space-12);
    align-items: start;
}

/* ========================================
   Featured Post
   ======================================== */

.featured-post {
    grid-column: 1 / -1;
    margin-bottom: var(--space-8);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow var(--duration-normal) var(--ease-out-expo);
}
.featured-post:hover {
    box-shadow: var(--shadow-md);
}

.featured-post-image {
    position: relative;
    min-height: 340px;
    background: oklch(88% 0.03 245);
    overflow: hidden;
}
.featured-post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    inset: 0;
}
.featured-post-image svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.featured-post-content {
    padding: var(--space-10) var(--space-10) var(--space-10) 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-5);
}

.featured-post .post-category {
    display: inline-flex;
    align-self: flex-start;
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: var(--color-accent-subtle);
    padding: var(--space-1) var(--space-3);
    border-radius: 999px;
}

.featured-post .post-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    line-height: var(--leading-tight);
    letter-spacing: -0.02em;
    margin: 0;
}
.featured-post .post-title a {
    color: var(--color-text);
}
.featured-post .post-title a:hover {
    color: var(--color-accent);
}

.featured-post .post-excerpt {
    font-size: var(--text-md);
    line-height: var(--leading-relaxed);
    color: var(--color-text-soft);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-post .post-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.featured-post .read-more,
.read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-accent);
    transition: gap var(--duration-fast) var(--ease-out-expo);
    align-self: flex-start;
}
.featured-post .read-more:hover,
.read-more:hover {
    gap: var(--space-2);
}
.featured-post .read-more svg,
.read-more svg {
    width: 16px;
    height: 16px;
    transition: transform var(--duration-fast) var(--ease-out-expo);
}
.featured-post .read-more:hover svg,
.read-more:hover svg {
    transform: translateX(2px);
}

/* ========================================
   Posts List
   ======================================== */

.posts-list {
    display: flex;
    flex-direction: column;
}

.section-label {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

.section-label span {
    color: var(--color-text);
}

.post-item {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding: var(--space-8) 0;
    border-bottom: 1px solid var(--color-border-subtle);
    transition: background var(--duration-fast) var(--ease-out-expo);
}
.post-item:first-of-type {
    padding-top: 0;
}

.post-item .post-meta-top {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.post-item .post-category {
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.post-item .post-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 500;
    line-height: var(--leading-snug);
    letter-spacing: -0.01em;
    margin: 0;
}
.post-item .post-title a {
    color: var(--color-text);
    transition: color var(--duration-fast) var(--ease-out-expo);
}
.post-item .post-title a:hover {
    color: var(--color-accent);
}

.post-item .post-excerpt {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text-soft);
    max-width: 68ch;
}

.post-item .post-footer {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.post-item .reading-time,
.reading-time {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}
.post-item .reading-time::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-border);
    margin-right: var(--space-2);
}

.post-item .tags,
.tags {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}
.post-item .tag,
.tag {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    transition: color var(--duration-fast) var(--ease-out-expo);
}
.post-item .tag:hover,
.tag:hover {
    color: var(--color-accent);
}

/* Post with thumbnail */
.post-item.has-thumbnail {
    grid-template-columns: 200px 1fr;
    align-items: start;
    gap: var(--space-8);
}

.post-thumbnail {
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: var(--color-border-subtle);
}
.post-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-normal) var(--ease-out-expo);
}
.post-thumbnail:hover img {
    transform: scale(1.03);
}

/* No posts message */
.no-posts,
.no-search-results {
    padding: var(--space-12) 0;
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--text-md);
}
.no-search-results p {
    margin-bottom: var(--space-4);
}

/* ========================================
   Pagination
   ======================================== */

.pagination {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-12);
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--color-text-soft);
    transition: all var(--duration-fast) var(--ease-out-expo);
    text-decoration: none;
}
.pagination a:hover {
    background: var(--color-border-subtle);
    color: var(--color-text);
}
.pagination .current {
    background: var(--color-accent);
    color: white;
    font-weight: 500;
}
.pagination .dots {
    color: var(--color-text-muted);
    cursor: default;
}

/* ========================================
   Sidebar
   ======================================== */

.sidebar {
    position: sticky;
    top: calc(60px + var(--space-8));
    display: flex;
    flex-direction: column;
    gap: var(--space-10);
}

.widget {
    background: var(--color-surface);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

.widget-title {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border-subtle);
}

/* About widget */
.widget-about .author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: oklch(85% 0.04 85);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    color: var(--color-text-muted);
    font-weight: 600;
}

.widget-about p {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-text-soft);
}

/* Categories widget */
.widget-categories ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}
.widget-categories li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--color-text-soft);
    transition: all var(--duration-fast) var(--ease-out-expo);
    text-decoration: none;
}
.widget-categories li a:hover {
    background: var(--color-border-subtle);
    color: var(--color-text);
}
.widget-categories .count {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    background: var(--color-border-subtle);
    padding: 1px 8px;
    border-radius: 999px;
}

/* Recent posts widget */
.widget-recent ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}
.widget-recent li a {
    display: block;
    font-size: var(--text-sm);
    line-height: var(--leading-snug);
    color: var(--color-text);
    transition: color var(--duration-fast) var(--ease-out-expo);
    text-decoration: none;
}
.widget-recent li a:hover {
    color: var(--color-accent);
}
.widget-recent .post-date {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-1);
}

/* Generic WordPress widget styling */
.widget ul {
    list-style: none;
}
.widget ul li {
    font-size: var(--text-sm);
    padding: var(--space-2) 0;
    color: var(--color-text-soft);
}
.widget ul li a {
    color: var(--color-text-soft);
    text-decoration: none;
}
.widget ul li a:hover {
    color: var(--color-accent);
}
.widget ul ul {
    margin-left: var(--space-4);
}
.widget select {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    background: var(--color-bg);
    color: var(--color-text);
}

/* ========================================
   Single Post
   ======================================== */

.single-post-wrapper {
    max-width: 820px;
    margin: 0 auto;
    padding: var(--space-8) var(--space-6) var(--space-20);
    width: 100%;
    flex: 1;
}

.single-post {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.single-post .post-category {
    align-self: flex-start;
    display: inline-flex;
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: var(--color-accent-subtle);
    padding: var(--space-1) var(--space-3);
    border-radius: 999px;
    text-decoration: none;
}

.post-title-single {
    font-size: var(--text-3xl);
    font-weight: 600;
    line-height: var(--leading-tight);
    letter-spacing: -0.02em;
    margin: 0;
}

.post-meta-single {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}
.post-meta-single .meta-separator {
    color: var(--color-border);
}
.post-meta-single a {
    color: var(--color-text-muted);
    text-decoration: none;
}
.post-meta-single a:hover {
    color: var(--color-accent);
}

.single-post-thumbnail {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: var(--space-4) 0;
}
.single-post-thumbnail img {
    width: 100%;
}

/* Entry content — article body */
.entry-content {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
}

.entry-content p {
    margin-bottom: var(--space-6);
}

.entry-content h2,
.entry-content h3,
.entry-content h4 {
    margin-top: var(--space-12);
    margin-bottom: var(--space-4);
}

.entry-content ul,
.entry-content ol {
    margin-bottom: var(--space-6);
    padding-left: var(--space-8);
}
.entry-content li {
    margin-bottom: var(--space-2);
}

.entry-content img {
    border-radius: var(--radius-md);
    margin: var(--space-6) 0;
}

.entry-content a {
    text-decoration: underline;
    text-decoration-color: var(--color-accent-subtle);
    text-underline-offset: 3px;
    transition: text-decoration-color var(--duration-fast) var(--ease-out-expo);
}
.entry-content a:hover {
    text-decoration-color: var(--color-accent);
}

.entry-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-8) 0;
    font-size: var(--text-sm);
}
.entry-content th,
.entry-content td {
    border: 1px solid var(--color-border);
    padding: var(--space-3) var(--space-4);
    text-align: left;
}
.entry-content th {
    background: var(--color-border-subtle);
    font-weight: 600;
}

.entry-content .page-links {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}
.entry-content .page-links a {
    text-decoration: none;
}

/* Author box */
.entry-footer {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

.author-box {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
}
.author-box .author-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: oklch(85% 0.04 85);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    font-weight: 600;
    flex-shrink: 0;
}
.author-box .author-info {
    flex: 1;
}
.author-box .author-name {
    font-weight: 600;
    font-size: var(--text-md);
    color: var(--color-text);
    margin-bottom: var(--space-1);
}
.author-box .author-bio {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-text-soft);
}

/* Post navigation */
.navigation.post-navigation {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    gap: var(--space-6);
    flex-wrap: wrap;
}
.navigation.post-navigation .nav-previous,
.navigation.post-navigation .nav-next {
    flex: 1;
    min-width: 200px;
}
.navigation.post-navigation .nav-next {
    text-align: right;
}
.navigation.post-navigation a {
    text-decoration: none;
    color: var(--color-text-soft);
    font-size: var(--text-sm);
    line-height: var(--leading-snug);
}
.navigation.post-navigation a:hover {
    color: var(--color-accent);
}
.navigation.post-navigation .nav-subtitle {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.navigation.post-navigation .nav-title {
    font-weight: 500;
    color: var(--color-text);
}

/* ========================================
   Comments
   ======================================== */

.comments-area {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

.comments-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-6);
    color: var(--color-text);
}

.comment-list {
    list-style: none;
    padding: 0;
}
.comment-list .children {
    list-style: none;
    padding-left: var(--space-8);
    margin-top: var(--space-4);
}

.comment-body {
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border-subtle);
}
.comment-author {
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.comment-author .avatar {
    border-radius: 50%;
}
.comment-meta {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
}
.comment-content {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-text-soft);
    margin-top: var(--space-2);
}
.comment-reply-link {
    font-size: var(--text-xs);
    color: var(--color-accent);
    text-decoration: none;
    margin-top: var(--space-2);
    display: inline-block;
}

/* Comment form */
.comment-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-top: var(--space-8);
}
.comment-form p {
    margin: 0;
}
.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    background: var(--color-surface);
    color: var(--color-text);
    outline: none;
    transition: border-color var(--duration-fast) var(--ease-out-expo);
}
.comment-form input:focus,
.comment-form textarea:focus {
    border-color: var(--color-accent);
}
.comment-form textarea {
    resize: vertical;
    min-height: 120px;
}
.comment-form .submit-btn,
.comment-form .submit {
    align-self: flex-start;
    padding: var(--space-3) var(--space-6);
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-out-expo);
}
.comment-form .submit-btn:hover,
.comment-form .submit:hover {
    background: var(--color-accent-hover);
}

/* ========================================
   404 Page
   ======================================== */

.error-404-wrapper {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--space-20) var(--space-6);
    text-align: center;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.error-404-code {
    font-size: clamp(5rem, 3rem + 8vw, 8rem);
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--space-4);
    opacity: 0.15;
}

.error-404-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: var(--space-4);
    color: var(--color-text);
}

.error-404-text {
    font-size: var(--text-md);
    line-height: var(--leading-relaxed);
    color: var(--color-text-soft);
    margin-bottom: var(--space-6);
}

.error-404-search {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-8);
}

/* ========================================
   Footer
   ======================================== */

.site-footer {
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
    padding: var(--space-12) var(--space-6);
}

.footer-inner {
    max-width: 1160px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.footer-info {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.footer-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    list-style: none;
    margin: 0;
    padding: 0;
}
.footer-links a {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    transition: color var(--duration-fast) var(--ease-out-expo);
    text-decoration: none;
}
.footer-links a:hover {
    color: var(--color-text);
}

.social-links {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}
.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    transition: all var(--duration-fast) var(--ease-out-expo);
    text-decoration: none;
}
.social-links a:hover {
    background: var(--color-border-subtle);
    color: var(--color-text);
}
.social-links svg {
    width: 16px;
    height: 16px;
}

/* Footer widget area */
.footer-widget {
    font-size: var(--text-sm);
}

/* ========================================
   Reading Progress Bar
   ======================================== */

.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: var(--color-accent);
    z-index: 200;
    transition: width 100ms linear;
}

/* ========================================
   Back to Top
   ======================================== */

.back-to-top {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--duration-normal) var(--ease-out-expo),
                visibility var(--duration-normal) var(--ease-out-expo),
                transform var(--duration-normal) var(--ease-out-expo),
                background var(--duration-fast) var(--ease-out-expo),
                color var(--duration-fast) var(--ease-out-expo);
    z-index: 150;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}
.back-to-top svg {
    width: 18px;
    height: 18px;
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.post-item {
    animation: fadeInUp 0.6s var(--ease-out-expo) both;
}
.post-item:nth-child(2) { animation-delay: 0.05s; }
.post-item:nth-child(3) { animation-delay: 0.1s; }
.post-item:nth-child(4) { animation-delay: 0.15s; }
.post-item:nth-child(5) { animation-delay: 0.2s; }
.post-item:nth-child(6) { animation-delay: 0.25s; }

/* ========================================
   WordPress Block Editor Styles
   ======================================== */

.entry-content .wp-block-image {
    margin: var(--space-6) 0;
}
.entry-content .wp-block-image img {
    border-radius: var(--radius-md);
}

.entry-content .wp-block-quote {
    border-left: 3px solid var(--color-accent);
    padding-left: var(--space-6);
    margin: var(--space-8) 0;
    color: var(--color-text-soft);
    font-style: italic;
    font-size: var(--text-md);
}

.entry-content .wp-block-code {
    background: oklch(20% 0.01 85);
    color: oklch(95% 0.005 85);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin: var(--space-6) 0;
    font-size: var(--text-sm);
}
.entry-content .wp-block-code code {
    background: none;
    padding: 0;
    color: inherit;
}

.entry-content .wp-block-embed {
    margin: var(--space-6) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.entry-content .wp-block-separator {
    border: none;
    height: 1px;
    background: var(--color-border);
    margin: var(--space-12) 0;
}

.entry-content .wp-block-button .wp-block-button__link {
    background: var(--color-accent);
    color: white;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: var(--text-sm);
    text-decoration: none;
    transition: background var(--duration-fast) var(--ease-out-expo);
}
.entry-content .wp-block-button .wp-block-button__link:hover {
    background: var(--color-accent-hover);
    color: white;
}

.entry-content .alignfull,
.entry-content .alignwide {
    margin-left: calc(-1 * var(--space-6));
    margin-right: calc(-1 * var(--space-6));
}
.entry-content .alignwide {
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.entry-content .has-accent-color,
.entry-content .has-accent-color a {
    color: var(--color-accent);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 960px) {
    .site-content {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .featured-post {
        grid-template-columns: 1fr;
    }
    .featured-post-image {
        min-height: 200px;
        order: -1;
    }
    .featured-post-content {
        padding: var(--space-6);
    }

    .sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: var(--space-6);
    }
}

@media (max-width: 640px) {
    .header-inner {
        padding: var(--space-3) var(--space-4);
    }

    .site-content {
        padding: var(--space-6) var(--space-4) var(--space-12);
    }

    .menu-toggle {
        display: flex;
    }

    .nav-menu,
    #navMenu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
        padding: var(--space-3);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity var(--duration-normal) var(--ease-out-expo),
                    visibility var(--duration-normal) var(--ease-out-expo),
                    transform var(--duration-normal) var(--ease-out-expo);
    }
    .nav-menu.mobile-visible,
    #navMenu.mobile-visible {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .search-form {
        left: var(--space-4);
        right: var(--space-4);
        width: auto;
    }

    .post-item.has-thumbnail {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    .post-thumbnail {
        max-width: 100%;
        aspect-ratio: 16 / 9;
    }

    .post-item .post-excerpt {
        display: none;
    }

    .featured-post .post-excerpt {
        display: -webkit-box;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .back-to-top {
        bottom: var(--space-4);
        right: var(--space-4);
    }

    .sidebar {
        grid-template-columns: 1fr;
    }

    .custom-logo,
    .site-logo {
        width: 130px;
    }

    .post-title-single {
        font-size: var(--text-2xl);
    }

    .author-box {
        flex-direction: column;
        gap: var(--space-3);
    }
}

/* ========================================
   Reduced Motion
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
}