/* ==========================================
   WikiEtymology - Etymology Dictionary Theme
   Adapted to match Etymonline.com style
   ========================================== */

/* CSS Variables */
:root {
    /* Etymonline Brand Colors */
    --primary-color: #982c28;  /* Etymonline Maroon */
    --primary-dark: #7a2320;
    --primary-light: #c0392b;
    
    --secondary-color: #343a40; /* Dark Slate/Charcoal */
    --secondary-dark: #212529;
    
    --accent-color: #f0c24b;   /* Dictionary Gold/Yellow */
    --accent-dark: #d6ad43;
    
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-muted: #868e96;
    
    /* Backgrounds - shifting to a warmer "paper" feel */
    --bg-primary: #ffffff;
    --bg-secondary: #fdfbf7;   /* Slight paper tint */
    --bg-tertiary: #f4f1ea;
    
    --border-color: #e9ecef;
    
    /* Shadows - Flatter, sharper shadows for academic look */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.05);
    
    /* Typography */
    /* Etymonline uses distinct serifs for headings */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Georgia', 'Times New Roman', serif;
    
    /* Spacing - Condensed for higher data density */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius - Squarer, more professional look */
    --radius-sm: 0.125rem;
    --radius-md: 0.25rem;
    --radius-lg: 0.25rem;
    --radius-xl: 0.375rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Container Width */
    --container-max: 1100px; /* Slightly narrower reading column */
    --container-padding: 2rem; /* Reduced from 150px to standard spacing */
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary-color: #b93a34; /* Slightly brighter red for dark mode */
    --text-primary: #e9ecef;
    --text-secondary: #adb5bd;
    --text-muted: #6c757d;
    
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-tertiary: #2c2c2c;
    
    --border-color: #343a40;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.7);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--bg-secondary); /* Applied paper tint to body */
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

h1 { font-size: 2.5rem; color: var(--primary-color); }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-weight: 500;
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

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

/* Container */
.container {
    width: 100%;
    max-width: calc(var(--container-max) + (var(--container-padding) * 2));
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-narrow {
    width: 100%;
    max-width: calc(800px + (var(--container-padding) * 2));
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Header & Navigation */
.site-header {
    background: var(--bg-primary);
    border-bottom: 3px solid var(--primary-color); /* Signature Red Top Border */
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .site-header {
    background: var(--bg-secondary);
}

.navbar {
    padding: var(--spacing-sm) 0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color); /* Solid Red Logo */
    background: none;
    -webkit-text-fill-color: initial;
    display: flex;
    align-items: center;
    letter-spacing: -0.03em;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-sm);
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 1rem;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

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

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    box-shadow: var(--shadow-md);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(0);
    transition: all var(--transition-base);
    margin-top: 0;
    padding: var(--spacing-xs) 0;
    overflow: hidden;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
}

.dropdown-menu li a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    font-size: 0.9375rem;
    border-left: 3px solid transparent;
}

.dropdown-menu li a:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.no-categories {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Search & Theme Toggle */
.search-toggle,
.theme-toggle {
    background: none;
    border: 1px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
}

.search-toggle:hover,
.theme-toggle:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    border-color: var(--border-color);
}

.theme-toggle .sun-icon { display: none; }
.theme-toggle .moon-icon { display: block; }

[data-theme="dark"] .theme-toggle .sun-icon { display: block; }
[data-theme="dark"] .theme-toggle .moon-icon { display: none; }

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

.mobile-menu-toggle span {
    width: 24px;
    height: 3px;
    background: var(--primary-color);
    transition: all var(--transition-base);
    border-radius: 2px;
}

/* Search Modal */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); /* Darker overlay */
    backdrop-filter: blur(4px);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 2000;
}

.search-modal.active {
    opacity: 1;
    visibility: visible;
}

.search-modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    width: 90%;
    max-width: 650px;
    position: relative;
    box-shadow: var(--shadow-xl);
    border-top: 4px solid var(--primary-color);
}

.search-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

.search-close:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

.search-form {
    display: flex;
    gap: var(--spacing-xs);
}

.search-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1.125rem;
    font-family: var(--font-display);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(152, 44, 40, 0.1);
}

.search-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-color); /* Solid Red */
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

/* Messages */
.messages-container {
    position: fixed;
    top: 80px;
    right: var(--spacing-md);
    z-index: 1500;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    max-width: 400px;
}

.alert {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    animation: slideIn 0.3s ease;
    font-size: 0.9375rem;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.alert-success {
    background: #e6f4ea;
    color: #1e4620;
    border-left: 4px solid #137333;
}

.alert-error {
    background: #fce8e6;
    color: #c5221f;
    border-left: 4px solid #c5221f;
}

.alert-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: currentColor;
    opacity: 0.6;
    line-height: 1;
}

.alert-close:hover { opacity: 1; }

/* Hero Section - Academic Style */
.hero-section {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-2xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    /* Subtle texture instead of tropical gradient */
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at top right, rgba(255,255,255,0.1) 0%, transparent 40%);
    opacity: 0.6;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    font-family: var(--font-display);
    font-style: italic;
}

.hero-search {
    display: flex;
    max-width: 550px;
    margin: 0 auto;
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid rgba(255,255,255,0.1);
}

.hero-search-input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    font-size: 1.125rem;
    font-family: var(--font-display);
    color: var(--text-primary);
}

.hero-search-input:focus { outline: none; }

.hero-search-btn {
    background: white;
    border: none;
    padding: 0 var(--spacing-lg);
    color: var(--primary-color);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.hero-search-btn:hover { color: var(--primary-dark); }

/* Posts Section */
.posts-section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    text-align: left; /* Aligned left like a dictionary */
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    margin-bottom: 0;
    color: var(--primary-color);
    background: none;
    -webkit-text-fill-color: initial;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* Posts Grid - Card Style */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.post-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}

.post-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.post-image-link {
    display: block;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    border-bottom: 1px solid var(--border-color);
}

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

.post-card:hover .post-image {
    transform: scale(1.03);
}

.post-image-placeholder {
    width: 100%;
    height: 100%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    opacity: 0.5;
}

.post-content {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.post-category {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    background: var(--bg-tertiary);
    color: var(--primary-color);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
    width: fit-content;
}

.post-title {
    font-family: var(--font-display);
    font-size: 1.375rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
    font-weight: 700;
    color: var(--primary-color);
}

.post-title a { color: var(--primary-color); text-decoration: none; }
.post-title a:hover { text-decoration: underline; }

.post-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    flex: 1;
    font-size: 0.95rem;
    line-height: 1.5;
}

.post-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xs);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

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

.author-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.7rem;
}

.author-name {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-muted);
}

.post-stats {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

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

.pagination-link {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    transition: all var(--transition-fast);
    font-size: 0.9375rem;
    background: var(--bg-primary);
}

.pagination-link:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-current {
    padding: var(--spacing-xs) var(--spacing-md);
    color: var(--primary-color);
    font-weight: 700;
    font-size: 0.9375rem;
    border: 1px solid transparent;
}

/* Post Detail */
.post-detail { background: var(--bg-primary); }

.post-header {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.post-category-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
}

.post-detail-title {
    font-family: var(--font-display);
    font-size: 3rem;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
    color: var(--primary-color);
}

.post-detail-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    color: var(--text-muted);
}

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

.author-avatar-large {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.author-details .author-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.post-meta-items {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.875rem;
}

/* Share Buttons */
.share-buttons {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.share-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
}

.share-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.share-btn:hover {
    background: var(--accent-color);
    color: var(--secondary-dark);
    transform: translateY(-2px);
}

/* Featured Image */
.post-featured-image {
    width: 100%;
    max-height: 400px;
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

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

/* Post Body - Dictionary Style */
.post-body {
    padding: var(--spacing-md) 0;
}

.post-content-wrapper {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
    font-family: var(--font-display); /* Serif for better reading */
}

.post-content-wrapper h2,
.post-content-wrapper h3,
.post-content-wrapper h4 {
    font-family: var(--font-display);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-xs);
}

.post-content-wrapper p {
    margin-bottom: var(--spacing-md);
}

.post-content-wrapper ul,
.post-content-wrapper ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.post-content-wrapper img {
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
    border: 1px solid var(--border-color);
}

.post-content-wrapper blockquote {
    border-left: 4px solid var(--accent-color);
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    font-style: italic;
    color: var(--text-primary);
}

.post-content-wrapper code {
    background: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
    font-family: 'Monaco', 'Menlo', monospace;
    color: var(--primary-dark);
}

.post-content-wrapper pre {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
}

/* Tags */
.post-tags {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-xl);
}

.tag {
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    font-weight: 500;
    border: 1px solid transparent;
}

.tag:hover {
    background: white;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Comments Section */
.comments-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.comments-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.comment-form-wrapper {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.comment-form-wrapper h3 { margin-bottom: var(--spacing-md); }

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.form-group { margin-bottom: var(--spacing-md); }

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(152, 44, 40, 0.1);
}

.btn-primary {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-secondary {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

/* Comments List */
.comments-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.comment {
    display: flex;
    gap: var(--spacing-md);
    background: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.comment-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
    font-size: 0.875rem;
}

.comment-content { flex: 1; }

.comment-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.comment-author {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-family: var(--font-display);
}

.comment-date {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.comment-body {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.5;
}

.no-comments {
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-xl);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px dashed var(--border-color);
}

/* Related Posts */
.related-posts {
    padding: var(--spacing-xl) 0;
    background: var(--bg-tertiary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.empty-state svg {
    color: var(--text-muted);
    margin: 0 auto var(--spacing-md);
    width: 64px; height: 64px;
}

.empty-state h3 { font-size: 1.25rem; margin-bottom: var(--spacing-xs); }
.empty-state p { color: var(--text-muted); }

/* Category/Tag/Search Pages */
.category-page, .tag-page, .search-page {
    padding: var(--spacing-xl) 0;
    min-height: 60vh;
}

.category-header, .tag-header, .search-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.category-title, .tag-title, .search-title {
    font-family: var(--font-display);
    font-size: 2.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--primary-color);
    background: none;
    -webkit-text-fill-color: initial;
}

.category-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    font-style: italic;
}

.tag-icon {
    display: inline-flex;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-color);
}

/* Search Page Specifics */
.search-form-page {
    display: flex;
    max-width: 600px;
    margin: 0 auto var(--spacing-md);
    gap: var(--spacing-sm);
}

.search-form-page input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1.125rem;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.search-results-count {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* About/Contact Pages */
.about-page, .contact-page { padding: var(--spacing-xl) 0; }

.about-header, .contact-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.page-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    background: none;
    -webkit-text-fill-color: initial;
}

.page-subtitle { font-size: 1.125rem; color: var(--text-secondary); }

.about-content { max-width: 800px; margin: 0 auto; }

.about-section { margin-bottom: var(--spacing-xl); }

.about-section h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: var(--spacing-xs);
    display: inline-block;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-list li {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.feature-list svg {
    color: var(--accent-color); /* Gold Checkmarks */
    flex-shrink: 0;
    margin-top: 4px;
}

.simple-list {
    padding-left: var(--spacing-lg);
    list-style-type: disc;
}

.simple-list li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

/* CTA Section - Branding Block */
.cta-section {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    text-align: center;
    border: 4px solid rgba(255,255,255,0.1);
}

.cta-section h3 {
    color: white;
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-display);
}

.cta-section p {
    color: rgba(255,255,255,0.9);
    margin-bottom: var(--spacing-md);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn-primary {
    background: var(--accent-color);
    color: var(--secondary-dark);
}

.cta-buttons .btn-primary:hover {
    background: white;
}

.cta-buttons .btn-secondary {
    border-color: white;
    color: white;
}

.cta-buttons .btn-secondary:hover {
    background: white;
    color: var(--primary-color);
}

/* Contact Grid */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-form-section {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.contact-form {
    display: flex;
    flex-direction: column;
}

.contact-info-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-info-card {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
}

.contact-info-card h3 { font-size: 1rem; margin-bottom: var(--spacing-xs); }

/* Footer - Dark & Academic */
.site-footer {
    background: var(--secondary-dark); /* Dark Footer like Etymonline */
    color: #ced4da;
    padding: var(--spacing-2xl) 0 var(--spacing-xl);
    border-top: none;
    margin-top: var(--spacing-2xl);
}

.site-footer h3, .site-footer h4 { color: white; }
.site-footer p { color: #adb5bd; }
.site-footer a { color: #ced4da; }
.site-footer a:hover { color: var(--accent-color); }

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.social-links a {
    background: rgba(255,255,255,0.1);
    color: white;
}

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

.newsletter-form input {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
}

.newsletter-form button {
    background: var(--primary-color);
}

.newsletter-form button:hover { background: var(--accent-color); color: var(--secondary-dark); }

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p { color: #6c757d; }

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px; /* Square styling */
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top:hover { background: var(--primary-dark); }

/* Responsive */
@media (max-width: 1400px) { :root { --container-padding: 2rem; } }
@media (max-width: 768px) {
    :root { --container-padding: 1rem; font-size: 15px; }
    .hero-title { font-size: 2.25rem; }
    .post-detail-title { font-size: 2.25rem; }
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0; right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 2px solid var(--primary-color);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        transition: transform var(--transition-base);
        z-index: 999;
    }
    .nav-menu.active { transform: translateY(0); }
    .mobile-menu-toggle { display: flex; }
    .posts-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media print {
    .site-header, .site-footer, .search-toggle, .theme-toggle, .mobile-menu-toggle,
    .share-buttons, .comment-form-wrapper, .related-posts, .back-to-top { display: none; }
    body { font-size: 12pt; color: #000; background: #fff; }
    a { text-decoration: underline; color: #000; }
}