/*
Theme Name: RunWise
Theme URI: https://runwise.life
Author: Mason Meng
Author URI: https://runwise.life
Description: A custom WordPress theme for RunWise - Run Smarter. Stay Stronger. Live Longer. Designed for runners 40+ who want to train intelligently and stay injury-free.
Version: 1.3.5
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: runwise
Tags: one-column, custom-menu, featured-images, threaded-comments, translation-ready, blog

RunWise Theme - Custom design for runwise.life
*/

/* ============================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================ */
:root {
    /* Colors */
    --color-primary: #1B2A4A;
    --color-primary-light: #2D4A7A;
    --color-primary-dark: #0F1A2E;
    --color-accent: #C8A15A;
    --color-accent-light: #E8D5A0;
    --color-accent-dark: #A07D3A;
    --color-bg: #FAFAF9;
    --color-surface: #FFFFFF;
    --color-text: #1F2937;
    --color-text-light: #6B7280;
    --color-text-lighter: #9CA3AF;
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;
    --color-success: #059669;
    --color-error: #DC2626;
    --color-warning: #D97706;

    /* Typography */
    --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* Spacing */
    --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;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;
    --header-height: 72px;
}

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

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

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--color-accent-dark);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
    margin-bottom: var(--space-4);
}

ul, ol {
    margin-bottom: var(--space-4);
    padding-left: var(--space-6);
}

blockquote {
    border-left: 4px solid var(--color-accent);
    padding-left: var(--space-4);
    margin: var(--space-6) 0;
    font-style: italic;
    color: var(--color-text-light);
}

code, pre {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    background: var(--color-border-light);
    border-radius: var(--radius-sm);
    padding: var(--space-1) var(--space-2);
}

pre {
    padding: var(--space-4);
    overflow-x: auto;
    margin-bottom: var(--space-4);
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.section {
    padding: var(--space-16) 0;
}

.section-sm {
    padding: var(--space-12) 0;
}

.section-lg {
    padding: var(--space-20) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-header h2 {
    margin-bottom: var(--space-3);
}

.section-header p {
    color: var(--color-text-light);
    font-size: var(--text-lg);
    max-width: 600px;
    margin: 0 auto;
}

.grid {
    display: grid;
    gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background-color: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: #fff;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: #fff;
}

.btn-outline {
    background-color: transparent;
    color: var(--color-accent-dark);
    border-color: var(--color-accent);
}

.btn-outline:hover {
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

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

.site-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    line-height: 0;
}

.site-logo img {
    height: 36px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
}

.site-logo-text {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.site-logo-text span {
    color: var(--color-accent);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--space-6);
    margin: 0;
    padding: 0;
}

.main-nav a {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    padding: var(--space-2) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

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

.main-nav a:hover::after,
.main-nav .current-menu-item a::after {
    width: 100%;
}

.main-nav .current-menu-item a {
    color: var(--color-primary);
    font-weight: 600;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition-base);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--color-surface);
        flex-direction: column;
        align-items: stretch;
        padding: var(--space-6);
        transform: translateX(100%);
        transition: transform var(--transition-base);
    }

    .main-nav.active {
        transform: translateX(0);
    }

    .main-nav ul {
        flex-direction: column;
        gap: var(--space-4);
    }

    .main-nav a {
        font-size: var(--text-lg);
        padding: var(--space-3) 0;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    padding: var(--space-24) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #fff;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: var(--text-6xl);
    color: #fff;
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.hero h1 span {
    color: var(--color-accent-light);
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-8);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

.hero .btn-primary {
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
    border-color: var(--color-accent);
}

.hero .btn-primary:hover {
    background-color: var(--color-accent-light);
    border-color: var(--color-accent-light);
}

.hero .btn-secondary {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

.hero .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    color: #fff;
}

@media (max-width: 768px) {
    .hero {
        padding: var(--space-16) 0;
    }

    .hero h1 {
        font-size: var(--text-4xl);
    }

    .hero-subtitle {
        font-size: var(--text-lg);
    }
}

/* ============================================
   CATEGORY CARDS
   ============================================ */
.category-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    text-align: center;
    transition: all var(--transition-base);
    text-decoration: none;
    color: inherit;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
    color: inherit;
}

.category-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-4);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-icon svg {
    width: 100%;
    height: 100%;
}

.category-card h3 {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-2);
}

.category-card p {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    margin: 0;
}

/* ============================================
   BOOK CARDS
   ============================================ */
.book-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.book-card-image {
    aspect-ratio: 2/3;
    background: var(--color-border-light);
    overflow: hidden;
}

.book-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.book-card-content {
    padding: var(--space-4);
}

.book-card-content h3 {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-2);
    line-height: 1.4;
}

.book-card-content h3 a {
    color: var(--color-primary);
    text-decoration: none;
}

.book-card-content h3 a:hover {
    color: var(--color-accent-dark);
}

.book-card-meta {
    font-size: var(--text-sm);
    color: var(--color-text-light);
}

.book-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--color-success);
    color: #fff;
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* WidePublish book cards on homepage — cover only */
.front-page .widepublish-book-card {
    border: none;
    background: transparent;
}

.front-page .widepublish-book-card:hover {
    transform: none;
    border-color: transparent;
}

.front-page .widepublish-book-card .widepublish-card-body {
    display: none;
}

.front-page .widepublish-book-card .widepublish-card-media {
    padding: 0;
    background: transparent;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.front-page .widepublish-book-card .widepublish-card-cover {
    width: 100%;
    height: auto;
    display: block;
    max-height: none;
    border-radius: var(--radius-xl);
    transition: transform var(--transition-slow);
}

.front-page .widepublish-book-card .widepublish-card-cover-link {
    display: block;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.front-page .widepublish-book-card:hover .widepublish-card-cover {
    transform: scale(1.03);
}

/* ============================================
   ARTICLE CARDS
   ============================================ */
.article-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.article-card-image {
    aspect-ratio: 16/9;
    background: var(--color-border-light);
    overflow: hidden;
}

.article-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.article-card-content {
    padding: var(--space-4);
}

.article-card-category {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-accent-dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-2);
}

.article-card-content h3 {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
    line-height: 1.4;
}

.article-card-content h3 a {
    color: var(--color-primary);
    text-decoration: none;
}

.article-card-content h3 a:hover {
    color: var(--color-accent-dark);
}

.article-card-excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-xs);
    color: var(--color-text-lighter);
}

/* ============================================
   RESOURCE CARDS
   ============================================ */
.resource-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-base);
    text-decoration: none;
    color: inherit;
}

.resource-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
    color: inherit;
}

.resource-icon {
    width: 48px;
    height: 48px;
    background: var(--color-border-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    font-size: 1.25rem;
}

.resource-card h3 {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--color-primary);
}

.resource-card p {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    margin-bottom: var(--space-4);
}

.resource-type {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--color-border-light);
    color: var(--color-text-light);
    font-size: var(--text-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
}

/* ============================================
   NEWSLETTER SECTION
   ============================================ */
.newsletter-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #fff;
    text-align: center;
}

.newsletter-section h2 {
    color: #fff;
    margin-bottom: var(--space-3);
}

.newsletter-section p {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--text-lg);
    max-width: 500px;
    margin: 0 auto var(--space-6);
}

.newsletter-form {
    display: flex;
    gap: var(--space-3);
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input[type="email"] {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: var(--text-base);
    font-family: var(--font-body);
}

.newsletter-form input[type="email"]::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.newsletter-form input[type="email"]:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.15);
}

@media (max-width: 768px) {
    .newsletter-form {
        flex-direction: column;
    }
}

/* ============================================
   APP WAITLIST SECTION
   ============================================ */
.waitlist-section {
    background: var(--color-surface);
    text-align: center;
}

.waitlist-section h2 {
    margin-bottom: var(--space-3);
}

.waitlist-section p {
    color: var(--color-text-light);
    font-size: var(--text-lg);
    max-width: 600px;
    margin: 0 auto var(--space-8);
}

.waitlist-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    max-width: 800px;
    margin: 0 auto var(--space-8);
}

.waitlist-feature {
    text-align: center;
}

.waitlist-feature-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-3);
    background: var(--color-border-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.waitlist-feature h4 {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.waitlist-feature p {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    margin: 0;
}

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

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-12);
}

.footer-brand .site-logo-text {
    color: #fff;
    font-size: var(--text-xl);
    margin-bottom: var(--space-3);
}

.footer-brand p {
    font-size: var(--text-sm);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.footer-contact-email a {
    color: var(--color-accent-light);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.footer-contact-email a:hover {
    color: var(--color-accent);
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.footer-social a {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: background var(--transition-fast);
}

.footer-social a:hover {
    background: var(--color-accent);
    color: var(--color-primary-dark);
}

.footer-column h4 {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column li {
    margin-bottom: var(--space-2);
}

.footer-column a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-accent-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--text-sm);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-3);
        text-align: center;
    }
}

/* ============================================
   BLOG / ARCHIVE PAGES
   ============================================ */
.archive-header {
    padding: var(--space-12) 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}

.archive-header h1 {
    margin-bottom: var(--space-2);
}

.archive-header p {
    color: var(--color-text-light);
    font-size: var(--text-lg);
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    padding: var(--space-12) 0;
}

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

@media (min-width: 769px) and (max-width: 1024px) {
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
    padding: var(--space-4) 0;
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin: 0;
    padding: 0;
    font-size: 0.82em;
    color: var(--color-text-light);
    counter-reset: none;
}

.breadcrumb li {
    list-style: none;
}

.breadcrumb li:not(:last-child)::after {
    content: "/";
    margin-left: 6px;
    color: var(--color-border);
}

.breadcrumb a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

.breadcrumb [aria-current="page"] {
    color: var(--color-text);
}

/* ============================================
   SINGLE POST
   ============================================ */
.single-post-header {
    padding: var(--space-12) 0 var(--space-8);
    max-width: 900px;
    margin: 0 auto;
}

.single-post-header .post-category {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-accent-dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-3);
}

.single-post-header h1 {
    font-size: var(--text-5xl);
    margin-bottom: var(--space-4);
    line-height: 1.15;
}

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

.post-featured-image {
    max-width: 900px;
    margin: 0 auto var(--space-8);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

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

.single-post-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--space-4);
    font-size: var(--text-lg);
    line-height: 1.8;
}

/* Two-column layout with sticky TOC */
.single-post-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: var(--space-10);
    max-width: 1200px;
    margin: 0 auto;
    align-items: start;
}

.single-post-toc {
    position: sticky;
    top: calc(var(--header-height) + var(--space-6));
    max-height: calc(100vh - var(--header-height) - var(--space-12));
    overflow-y: auto;
    padding: var(--space-4) 0;
}

.toc-inner h4 {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-light);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

.single-post-toc nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.single-post-toc nav li {
    margin-bottom: 0;
}

.single-post-toc nav a {
    display: block;
    padding: 5px 0 5px 14px;
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-decoration: none;
    line-height: 1.6;
    border-left: 2px solid transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.single-post-toc nav a:hover {
    color: var(--color-primary);
    border-left-color: var(--color-accent);
}

.single-post-toc nav .toc-h3 a {
    padding-left: 28px;
    font-size: 0.8125rem;
}

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

    .single-post-toc {
        position: static;
        max-height: none;
        margin-bottom: var(--space-6);
    }
}

.single-post-content h2 {
    font-size: var(--text-3xl);
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
}

.single-post-content h3 {
    font-size: var(--text-2xl);
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

.single-post-content p {
    margin-bottom: var(--space-5);
}

.single-post-content ul,
.single-post-content ol {
    margin-bottom: var(--space-5);
    padding-left: var(--space-6);
}

.single-post-content li {
    margin-bottom: var(--space-2);
}

.single-post-content img {
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
}

.single-post-content blockquote {
    font-size: var(--text-xl);
    padding: var(--space-6) var(--space-8);
    margin: var(--space-8) 0;
    background: var(--color-border-light);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-accent);
}

/* ============================================
   PAGE CONTENT
   ============================================ */
.page-archive-header {
    padding: var(--space-12) 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.page-archive-header h1 {
    margin-bottom: var(--space-2);
}

.page-content {
    padding: var(--space-12) 0;
}

.page-content .entry-content {
    max-width: none;
}

.page-content h1 {
    margin-bottom: var(--space-6);
}

.page-content h2 {
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
}

.page-content h3 {
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

/* ============================================
   SEARCH RESULTS
   ============================================ */
.search-results {
    padding: var(--space-12) 0;
}

.search-results-header {
    margin-bottom: var(--space-8);
}

.search-results-header h1 {
    margin-bottom: var(--space-2);
}

.search-form-wrapper {
    max-width: 500px;
    margin-bottom: var(--space-8);
}

.search-form-wrapper input[type="search"] {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-family: var(--font-body);
    transition: border-color var(--transition-fast);
}

.search-form-wrapper input[type="search"]:focus {
    outline: none;
    border-color: var(--color-accent);
}

/* ============================================
   404 PAGE
   ============================================ */
.error-404 {
    text-align: center;
    padding: var(--space-24) 0;
}

.error-404 h1 {
    font-size: var(--text-6xl);
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

.error-404 p {
    font-size: var(--text-lg);
    color: var(--color-text-light);
    margin-bottom: var(--space-8);
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-8) 0;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.pagination .current {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

/* ============================================
   COMMENTS
   ============================================ */
.comments-area {
    max-width: var(--container-narrow);
    margin: var(--space-12) auto 0;
    padding: 0 var(--space-4);
}

.comments-area h3 {
    font-family: var(--font-body);
    font-size: var(--text-xl);
    margin-bottom: var(--space-6);
}

.comment-list {
    list-style: none;
    padding: 0;
}

.comment {
    padding: var(--space-6);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

.comment-author {
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.comment-meta {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    margin-bottom: var(--space-3);
}

.comment-content {
    font-size: var(--text-base);
    line-height: 1.6;
}

.comment-respond {
    margin-top: var(--space-8);
}

.comment-respond input[type="text"],
.comment-respond input[type="email"],
.comment-respond 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-base);
    margin-bottom: var(--space-4);
}

.comment-respond input:focus,
.comment-respond textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.comment-respond textarea {
    min-height: 120px;
    resize: vertical;
}

/* ============================================
   WIDGETS / SIDEBAR
   ============================================ */
.widget {
    margin-bottom: var(--space-6);
}

.widget h3,
.widget-title {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-3);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--color-accent);
}

.widget ul {
    list-style: none;
    padding: 0;
}

.widget li {
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.widget a {
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--text-sm);
}

.widget a:hover {
    color: var(--color-accent-dark);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* ============================================
   RELATED CONTENT SECTION
   ============================================ */
.related-content-section {
    margin: var(--space-10) 0;
    padding: var(--space-8) 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-subtle, #fafafa);
}

.related-content-block {
    margin-bottom: var(--space-8);
}

.related-content-block:last-child {
    margin-bottom: 0;
}

.related-content-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}

/* Related Books Grid */
.related-books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-5);
    margin-top: var(--space-4);
}

.related-book-card {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: white;
    border: 1px solid var(--color-border);
}

.related-book-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
}

.related-book-cover {
    aspect-ratio: 3/4;
    overflow: hidden;
    background: var(--color-bg-subtle, #f5f5f5);
}

.related-book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-fast);
}

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

.related-book-info {
    padding: var(--space-3);
}

.related-book-category {
    display: inline-block;
    font-size: var(--text-xs);
    color: var(--color-primary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-2);
}

.related-book-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
    margin: 0 0 var(--space-1);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-book-subtitle {
    font-size: var(--text-xs);
    color: var(--color-text-light);
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Related Posts Grid */
.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-5);
    margin-top: var(--space-4);
}

.related-post-card {
    display: flex;
    text-decoration: none;
    color: inherit;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: white;
    border: 1px solid var(--color-border);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.related-post-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
}

.related-post-thumb {
    flex: 0 0 120px;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--color-bg-subtle, #f5f5f5);
}

.related-post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-fast);
}

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

.related-post-info {
    flex: 1;
    padding: var(--space-3);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.related-post-category {
    display: inline-block;
    font-size: var(--text-xs);
    color: var(--color-primary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-2);
}

.related-post-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
    margin: 0 0 var(--space-2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-post-excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Responsive */
@media (max-width: 768px) {
    .related-books-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .related-posts-grid {
        grid-template-columns: 1fr;
    }

    .related-post-thumb {
        flex: 0 0 100px;
    }
}

@media (max-width: 480px) {
    .related-books-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .site-header,
    .site-footer,
    .hero-cta,
    .newsletter-section,
    .comments-area {
        display: none;
    }

    body {
        background: #fff;
        color: #000;
    }

    .single-post-content {
        max-width: 100%;
    }
}