/* ========================================
   🎨 LAZY PROMPT - Premium Light Theme
   Simple, Modern, Premium Design
   ======================================== */

/* Import Premium Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ========================================
   Design Tokens & Variables
   ======================================== */
:root {
    /* Colors - Premium Light Palette */
    --color-bg: #FAFBFC;
    --color-surface: #FFFFFF;
    --color-surface-elevated: #FFFFFF;
    --color-border: #E5E8EB;
    --color-border-light: #F0F2F5;

    /* Text Colors */
    --color-text-primary: #1A1D23;
    --color-text-secondary: #4B5563;
    --color-text-tertiary: #9CA3AF;

    /* Accent Colors - Vibrant but Professional */
    --color-primary: #6366F1;
    --color-primary-hover: #4F46E5;
    --color-primary-light: #EEF2FF;
    --color-gradient: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);

    /* Semantic Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;

    /* Spacing System */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', var(--font-primary);

    /* Borders & Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows - Subtle and Premium */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --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 cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

/* ========================================
   Layout Container
   ======================================== */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* ========================================
   Sidebar
   ======================================== */
.sidebar {
    width: 280px;
    background-color: var(--color-surface);
    border-right: 1px solid var(--color-border-light);
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    padding: var(--spacing-xl);
    z-index: 90;
    transition: transform var(--transition-base);
}

/* Swipe Handle - visible on mobile */
.sidebar-swipe-handle {
    display: none;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 100px;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1));
    border-radius: 0 10px 10px 0;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

.sidebar-swipe-handle::before {
    content: '⋮';
    font-size: 24px;
    color: var(--color-primary);
    opacity: 0.6;
}

.sidebar-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.sidebar-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.5;
}

.sidebar-section {
    margin-bottom: var(--spacing-2xl);
}

.sidebar-section-title {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-md);
}

.sidebar-nav {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: var(--spacing-xs);
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    transform: translateX(3px);
}

.sidebar-count {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    background-color: var(--color-bg);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.sidebar-nav a:hover .sidebar-count,
.sidebar-nav a.active .sidebar-count {
    background-color: var(--color-primary);
    color: white;
}

/* Sidebar Search */
.sidebar-search {
    margin-bottom: var(--spacing-xl);
}

.sidebar-search-input {
    width: 100%;
    padding: var(--spacing-sm);
    font-size: 0.875rem;
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.sidebar-search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.sidebar-search-input::placeholder {
    color: var(--color-text-tertiary);
    font-size: 0.8125rem;
}


/* Main Content with Sidebar */
.main-with-sidebar {
    margin-left: 280px;
    width: calc(100% - 280px);
}

/* Mobile Sidebar Toggle */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
    z-index: 100;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

@media (max-width: 968px) {
    .sidebar {
        width: 180px;
        /* Narrower for mobile */
        padding: var(--spacing-md);
        transform: translateX(0);
        /* Always visible */
        box-shadow: none;
    }

    .sidebar-logo {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-xs);
    }

    .sidebar-subtitle {
        font-size: 0.75rem;
        margin-bottom: var(--spacing-lg);
    }

    .sidebar-section {
        margin-bottom: var(--spacing-lg);
    }

    .sidebar-section-title {
        font-size: 0.625rem;
        margin-bottom: var(--spacing-sm);
    }

    .sidebar-nav a {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.8125rem;
    }

    .sidebar-count {
        font-size: 0.625rem;
        padding: 0.0625rem 0.375rem;
    }

    .sidebar-swipe-handle {
        display: none;
        /* Hide swipe handle */
    }

    .sidebar-toggle {
        display: none;
        /* Hide toggle button */
    }

    .main-with-sidebar {
        margin-left: 180px;
        width: calc(100% - 180px);
    }

    .site-header {
        padding-left: var(--spacing-lg);
    }

    .header-container {
        padding: var(--spacing-md) var(--spacing-md);
    }

    .site-logo {
        font-size: 1.125rem;
    }

    .header-nav {
        display: none;
        /* Hide top nav on mobile to save space */
    }
}

@media (max-width: 480px) {
    .sidebar {
        width: 140px;
        /* Even narrower for small phones */
    }

    .main-with-sidebar {
        margin-left: 140px;
        width: calc(100% - 140px);
    }

    .sidebar-logo {
        font-size: 1rem;
    }

    .sidebar-nav a {
        font-size: 0.75rem;
    }
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-light);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: all var(--transition-base);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
    transition: transform var(--transition-fast);
}

.site-logo:hover {
    transform: scale(1.02);
}

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

.nav-link {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

/* ========================================
   Hero Section
   ======================================== */
.hero-section {
    padding: var(--spacing-3xl) var(--spacing-xl);
    text-align: center;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, var(--color-bg) 100%);
}

.hero-container {
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.6s ease-out;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-lg);
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* ========================================
   Search Section
   ======================================== */
.search-section {
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input {
    width: 100%;
    padding: 1.25rem 3.5rem 1.25rem 1.5rem;
    font-size: 1.0625rem;
    font-family: var(--font-primary);
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg), 0 0 0 4px var(--color-primary-light);
    transform: translateY(-2px);
}

.search-input::placeholder {
    color: var(--color-text-tertiary);
}

.search-icon {
    position: absolute;
    right: 1.5rem;
    font-size: 1.5rem;
    pointer-events: none;
    opacity: 0.4;
    transition: all var(--transition-base);
}

.search-input:focus+.search-icon {
    opacity: 1;
    transform: scale(1.1);
}

.search-status {
    text-align: center;
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    font-weight: 500;
}

.search-status.success {
    color: var(--color-success);
}

.search-status.error {
    color: var(--color-error);
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-3xl);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.result-count {
    font-size: 0.9375rem;
    color: var(--color-text-tertiary);
    font-weight: 500;
}

/* ========================================
   Post Grid
   ======================================== */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.post-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-xs);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.post-thumbnail {
    width: 100%;
    height: 200px;
    background-size: cover;
    background-position: center;
    background-color: var(--color-border-light);
    position: relative;
    overflow: hidden;
}

.post-thumbnail::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.05) 100%);
}

.post-card:hover .post-thumbnail {
    transform: scale(1.05);
}

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

.post-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-summary {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;

    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.post-date {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    font-weight: 500;
}

.post-arrow {
    color: var(--color-primary);
    font-size: 1.25rem;
    transition: transform var(--transition-fast);
}

.post-card:hover .post-arrow {
    transform: translateX(4px);
}

/* ========================================
   Empty State
   ======================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.3;
}

.empty-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.empty-text {
    font-size: 1rem;
    color: var(--color-text-secondary);
}

/* ========================================
   Pagination
   ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
}

.page-link {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
}

.page-link:hover {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.page-info {
    color: var(--color-text-tertiary);
    font-size: 0.9375rem;
    font-weight: 500;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border-light);
    padding: var(--spacing-2xl) var(--spacing-xl);
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .header-container {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .hero-section {
        padding: var(--spacing-2xl) var(--spacing-lg);
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .posts-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

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

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .search-input {
        padding: 1rem 3rem 1rem 1.25rem;
        font-size: 1rem;
    }

    .post-thumbnail {
        height: 160px;
    }
}

/* ========================================
   Single Post Page
   ======================================== */
.post-single {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.post-header {
    margin-bottom: var(--spacing-2xl);
}

.back-link {
    display: inline-flex;
    align-items: center;
    color: var(--color-primary);
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-fast);
}

.back-link:hover {
    color: var(--color-primary-hover);
    transform: translateX(-4px);
}

.post-single h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
}

.post-single .meta {
    color: var(--color-text-tertiary);
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xl);
}

.featured-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.post-single .content {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--color-text-primary);
}

.post-single .content h2,
.post-single .content h3,
.post-single .content h4 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    line-height: 1.3;
}

.post-single .content h2 {
    font-size: 1.875rem;
}

.post-single .content h3 {
    font-size: 1.5rem;
}

.post-single .content h4 {
    font-size: 1.25rem;
}

.post-single .content p {
    margin-bottom: var(--spacing-lg);
}

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

.post-single .content li {
    margin-bottom: var(--spacing-sm);
}

.post-single .content a {
    color: var(--color-primary);
    text-decoration: underline;
    text-decoration-color: var(--color-primary-light);
    text-decoration-thickness: 2px;
    transition: all var(--transition-fast);
}

.post-single .content a:hover {
    color: var(--color-primary-hover);
    text-decoration-color: var(--color-primary);
}

.post-single .content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--spacing-xl) 0;
    box-shadow: var(--shadow-md);
}

.post-single .content code {
    background-color: var(--color-border-light);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.post-single .content pre {
    background-color: var(--color-border-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

.post-single .content pre code {
    background-color: transparent;
    padding: 0;
}

.post-single .content blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

.post-single .content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
    display: block;
}

.post-single .content table th,
.post-single .content table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    text-align: left;
}

.post-single .content table th {
    background-color: var(--color-border-light);
    font-weight: 600;
}

/* Copy Button Styles */
.copy-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.copy-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--color-primary-hover) 0%, #3730A3 100%);
}

.copy-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.copy-btn.copied {
    background: linear-gradient(135deg, var(--color-success) 0%, #059669 100%);
}

/* Make pre tags relative for button positioning */
.post-single .content pre {
    position: relative;
    background-color: var(--color-border-light);
    padding: var(--spacing-lg);
    padding-top: 3rem;
    /* Extra space for button */
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

/* 모바일 반응형 */
@media (max-width: 768px) {
    .post-single {
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .post-single h1 {
        font-size: 1.75rem;
    }

    .post-single .content {
        font-size: 1rem;
    }

    .post-single .content h2 {
        font-size: 1.5rem;
    }

    .post-single .content h3 {
        font-size: 1.25rem;
    }

    .post-single .content h4 {
        font-size: 1.125rem;
    }

    .copy-btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.8125rem;
        top: 0.5rem;
        right: 0.5rem;
    }
}

/* ========================================
   Loading States
   ======================================== */
.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}