/**
 * Digital Nexus - Modern CSS Styles
 * Modern, lightweight, mobile-first CSS for Digital Nexus theme
 */

/* ============================================
   CSS Variables & Base Styles
   ============================================ */

:root {
    --primary-blue: #2563eb;
    --primary-blue-dark: #1e40af;
    --primary-blue-light: #3b82f6;
    --dark-gray: #1f2937;
    --medium-gray: #4b5563;
    --light-gray: #6b7280;
    --lighter-gray: #9ca3af;
    --bg-gray: #f3f4f6;
    --bg-gray-dark: #e5e7eb;
    --white: #ffffff;
    --accent: #3b82f6;
    --yellow: #fbbf24;
    --red: #ef4444;
    --green: #10b981;
    
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    --container-width: 1200px;
    --spacing-unit: 1rem;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --transition-base: all 0.3s ease;
    --border-radius: 0.5rem;
}

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

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: var(--line-height-base);
    color: var(--dark-gray);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

ul, ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

/* ============================================
   Utility Classes
   ============================================ */

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.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;
}

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

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

/* ============================================
   Layout
   ============================================ */

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

.site-main {
    flex: 1;
}

/* ============================================
   Header & Navigation
   ============================================ */

.site-header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}

.site-header nav {
    padding: 1rem 0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 1rem;
}

.site-header .container {
    padding: 0 1rem;
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
}

.site-branding {
    flex-shrink: 0;
}

.site-branding a {
    display: flex;
    align-items: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark-gray);
    text-decoration: none;
    transition: var(--transition-base);
}

.site-branding a:hover {
    color: var(--primary-blue);
}

.site-branding img {
    max-height: 40px;
    width: auto;
    height: auto;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 2px solid var(--bg-gray-dark);
    border-radius: var(--border-radius);
    color: var(--dark-gray);
    cursor: pointer;
    padding: 0.5rem;
    width: 40px;
    height: 40px;
    transition: var(--transition-base);
    flex-shrink: 0;
}

.mobile-menu-toggle:hover {
    background-color: var(--bg-gray);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.mobile-menu-toggle svg {
    width: 24px;
    height: 24px;
}

/* Navigation Menu - Mobile First */
.main-navigation {
    display: none;
}

.main-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-menu li {
    margin: 0;
}

.main-menu li a {
    color: var(--medium-gray);
    font-weight: 500;
    text-decoration: none;
    padding: 0.5rem 0;
    display: block;
    transition: var(--transition-base);
    white-space: nowrap;
}

.main-menu li a:hover {
    color: var(--primary-blue);
}

.main-navigation .btn {
    white-space: nowrap;
    margin-left: 0.5rem;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    width: 100%;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--bg-gray-dark);
    animation: slideDown 0.3s ease-out;
}

.mobile-menu.active {
    display: block;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-menu-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mobile-menu-list li {
    margin: 0;
}

.mobile-menu-list li a {
    color: var(--medium-gray);
    font-weight: 500;
    display: block;
    padding: 0.75rem 1rem;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition-base);
}

.mobile-menu-list li a:hover {
    color: var(--primary-blue);
    background-color: var(--bg-gray);
}

.mobile-menu .btn {
    width: 100%;
    margin-top: 1rem;
    text-align: center;
    display: block;
}

/* Tablet and Desktop Navigation */
@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }
    
    .main-navigation {
        display: flex;
        align-items: center;
        gap: 1.5rem;
    }
    
    .mobile-menu {
        display: none !important;
    }
    
    .site-branding a {
        font-size: 1.5rem;
    }
    
    .site-branding img {
        max-height: 50px;
    }
    
    .main-menu {
        gap: 2rem;
    }
}

/* Large Desktop */
@media (min-width: 1024px) {
    .site-header .container {
        padding: 0 2rem;
    }
    
    .main-menu {
        gap: 2.5rem;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .site-header .container {
        padding: 0 0.75rem;
    }
    
    .site-branding a {
        font-size: 1.125rem;
    }
    
    .site-branding img {
        max-height: 35px;
    }
    
    .nav-wrapper {
        gap: 0.5rem;
    }
    
    .mobile-menu-toggle {
        width: 36px;
        height: 36px;
        padding: 0.375rem;
    }
    
    .mobile-menu-toggle svg {
        width: 20px;
        height: 20px;
    }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--border-radius);
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    line-height: 1.5;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-blue-dark);
    color: var(--white);
}

.btn-secondary {
    background-color: var(--bg-gray-dark);
    color: var(--dark-gray);
}

.btn-secondary:hover {
    background-color: var(--light-gray);
    color: var(--white);
}

.btn-white {
    background-color: var(--white);
    color: var(--primary-blue);
}

.btn-white:hover {
    background-color: var(--bg-gray);
}

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

.btn-outline:hover {
    background-color: var(--white);
    color: var(--primary-blue);
}

/* Button in blue section */
.bg-blue .btn-outline,
.contact-section .btn-outline,
.hero-section .btn-outline {
    background-color: transparent;
    border: 2px solid var(--white);
    color: var(--white);
}

.bg-blue .btn-outline:hover,
.contact-section .btn-outline:hover,
.hero-section .btn-outline:hover {
    background-color: var(--white);
    color: var(--primary-blue);
}

/* Button in gray section */
.bg-gray .btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
}

.bg-gray .btn-outline:hover {
    background-color: var(--primary-blue);
    color: var(--white);
}

/* ============================================
   Hero Section
   ============================================ */

.hero-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    padding: 5rem 0;
    text-align: center;
}

.hero-content {
    max-width: 64rem;
    margin: 0 auto;
}

.hero-section h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.hero-section p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 42rem;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

.hero-image {
    margin-top: 3rem;
    max-width: 80rem;
    margin-left: auto;
    margin-right: auto;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
}

@media (min-width: 640px) {
    .hero-section h1 {
        font-size: 3.5rem;
    }
    
    .hero-actions {
        flex-direction: row;
    }
}

/* ============================================
   Sections
   ============================================ */

.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.25rem;
    color: var(--light-gray);
    max-width: 48rem;
    margin: 0 auto;
}

.bg-gray {
    background-color: var(--bg-gray);
}

.bg-white {
    background-color: var(--white);
}

.bg-blue {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
}

/* ============================================
   Grid Layouts
   ============================================ */

.grid {
    display: grid;
    gap: 2rem;
}

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

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

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

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

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

/* ============================================
   Cards
   ============================================ */

.card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    transition: var(--transition-base);
}

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

.card-icon {
    width: 4rem;
    height: 4rem;
    background-color: rgba(37, 99, 235, 0.1);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.card-icon svg {
    width: 2rem;
    height: 2rem;
    color: var(--primary-blue);
}

.card h3 {
    margin-bottom: 1rem;
}

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

.card ul li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.card ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

/* ============================================
   Services Grid
   ============================================ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* ============================================
   Why Choose Us
   ============================================ */

.why-choose-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 75rem;
    margin: 0 auto;
}

.why-choose-item {
    text-align: center;
}

.why-choose-icon {
    width: 5rem;
    height: 5rem;
    background-color: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.why-choose-icon svg {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--primary-blue);
}

/* ============================================
   Pricing Section
   ============================================ */

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 75rem;
    margin: 0 auto;
}

.pricing-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    text-align: center;
    position: relative;
}

.pricing-card.featured {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    transform: scale(1.05);
}

.pricing-card.featured h3,
.pricing-card.featured .price,
.pricing-card.featured p {
    color: var(--white);
}

.pricing-badge {
    position: absolute;
    top: 0;
    right: 0;
    background-color: var(--yellow);
    color: var(--dark-gray);
    padding: 0.5rem 1rem;
    border-radius: 0 0 0 var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 1rem 0;
}

.pricing-features {
    list-style: none;
    margin: 2rem 0;
    padding: 0;
    text-align: left;
}

.pricing-features li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
}

.pricing-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    font-weight: bold;
}

.pricing-card.featured .pricing-features li:before {
    color: var(--yellow);
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.price-period {
    font-size: 1rem;
    font-weight: normal;
    opacity: 0.8;
}

.pricing-card.featured .price-period {
    opacity: 0.9;
}

.pricing-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--bg-gray-dark);
    text-align: center;
}

.pricing-footer p {
    color: var(--medium-gray);
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.pricing-footer .btn {
    margin-top: 0.5rem;
    display: inline-block;
}

/* Pricing footer button in gray section */
.bg-gray .pricing-footer .btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-base);
}

.bg-gray .pricing-footer .btn-outline:hover {
    background-color: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   Testimonials
   ============================================ */

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 75rem;
    margin: 0 auto;
}

.testimonial-card {
    background-color: var(--bg-gray);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.testimonial-rating {
    margin-bottom: 1.5rem;
    color: var(--yellow);
}

.testimonial-quote {
    font-style: italic;
    color: var(--medium-gray);
    margin-bottom: 1.5rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    overflow: hidden;
}

.testimonial-info h4 {
    margin: 0;
    font-size: 1rem;
}

.testimonial-info p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--light-gray);
}

/* ============================================
   Contact Section
   ============================================ */

.contact-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    padding: 5rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 64rem;
    margin: 0 auto;
}

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

.contact-form {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
    padding: 2rem;
    color: var(--dark-gray);
}

.contact-form h3 {
    color: var(--dark-gray);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--bg-gray-dark);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--lighter-gray);
    opacity: 0.7;
}

.required {
    color: var(--red);
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    display: none;
}

.form-message.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--green);
    border: 1px solid var(--green);
    display: block;
}

.form-message.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--red);
    border: 1px solid var(--red);
    display: block;
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-item-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-item-content h4 {
    color: var(--white);
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.contact-item-content a {
    color: rgba(255, 255, 255, 0.9);
}

.contact-item-content a:hover {
    color: var(--white);
}

.business-hours {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-top: 2rem;
}

.business-hours h4 {
    color: var(--white);
    margin-bottom: 1rem;
}

.business-hours ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.business-hours li {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.5rem;
}

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

.site-footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 3rem 0 1.5rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition-base);
}

.footer-section a:hover {
    color: var(--white);
}

.footer-logo img {
    max-height: 50px;
    margin-bottom: 1rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom a:hover {
    color: var(--white);
}

/* ============================================
   Blog & Archive Pages
   ============================================ */

.post-grid,
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    align-items: stretch;
    width: 100%;
}

.post-card,
.project-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
}

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

.post-card > a,
.project-card > a {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
}

.post-thumbnail-wrapper,
.project-thumbnail-wrapper {
    position: relative;
    overflow: hidden;
    width: 100%;
    flex-shrink: 0;
}

.post-thumbnail,
.project-thumbnail {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: var(--transition-base);
    display: block;
}

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

.post-content,
.project-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    width: 100%;
}

.post-content h2,
.post-content h3,
.project-content h3 {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
    line-height: 1.4;
}

.post-content h2 a,
.post-content h3 a,
.project-content h3 {
    color: var(--dark-gray);
    text-decoration: none;
    display: block;
}

.post-content h2 a:hover,
.post-content h3 a:hover,
.project-content h3:hover {
    color: var(--primary-blue);
}

.project-excerpt {
    color: var(--medium-gray);
    margin: 0.75rem 0;
    line-height: 1.6;
    flex-grow: 1;
}

.post-meta {
    font-size: 0.875rem;
    color: var(--light-gray);
    margin-bottom: 1rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.meta-separator {
    color: var(--lighter-gray);
}

.category-link,
.author-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-base);
}

.category-link:hover,
.author-link:hover {
    color: var(--primary-blue-dark);
    text-decoration: underline;
}

.post-excerpt {
    color: var(--medium-gray);
    margin-bottom: 1rem;
    flex-grow: 1;
    line-height: 1.6;
}

.post-excerpt a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
}

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

.post-footer,
.project-footer {
    margin-top: auto;
    padding-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.post-footer .read-more,
.project-footer .read-more {
    margin-top: 0;
    color: var(--primary-blue);
    font-weight: 600;
    text-decoration: none;
}

.post-footer .read-more:hover,
.project-footer .read-more:hover {
    text-decoration: underline;
}

.post-content .btn {
    margin-top: 0;
}

.project-content .read-more {
    margin-top: 0;
}

.read-more {
    color: var(--primary-blue);
    font-weight: 600;
    display: inline-block;
    text-decoration: none;
    transition: var(--transition-base);
}

.read-more:hover {
    text-decoration: underline;
    color: var(--primary-blue-dark);
}

.project-type-badge {
    margin-top: 0.75rem;
    margin-bottom: 0.5rem;
}

.project-badge,
.project-type-badge {
    display: inline-block;
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary-blue);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.project-details {
    margin: 2rem 0;
}

.project-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.page-content {
    max-width: 64rem;
    margin: 0 auto;
}

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

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

.entry-header {
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--bg-gray-dark);
}

.entry-title {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
}

.entry-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.9375rem;
    color: var(--medium-gray);
    margin-bottom: 0;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.meta-item svg {
    flex-shrink: 0;
    color: var(--primary-blue);
}

.meta-item a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-base);
}

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

.comments-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
}

.comments-link:hover {
    color: var(--primary-blue-dark);
    text-decoration: underline;
}

.entry-thumbnail {
    margin-bottom: 2.5rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.featured-image {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-base);
}

.entry-thumbnail:hover .featured-image {
    transform: scale(1.02);
}

.entry-content {
    line-height: 1.9;
    font-size: 1.0625rem;
    color: var(--dark-gray);
}

.entry-content p {
    margin-bottom: 1.5rem;
}

.entry-content h2 {
    font-size: 2rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.entry-content h3 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.entry-content h4 {
    font-size: 1.25rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--dark-gray);
}

.entry-content ul,
.entry-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.entry-content li {
    margin-bottom: 0.75rem;
}

.entry-content a {
    color: var(--primary-blue);
    text-decoration: underline;
    font-weight: 500;
    transition: var(--transition-base);
}

.entry-content a:hover {
    color: var(--primary-blue-dark);
    text-decoration: none;
}

.entry-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: 2rem 0;
    box-shadow: var(--shadow-md);
}

.entry-content blockquote {
    border-left: 4px solid var(--primary-blue);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--medium-gray);
    background-color: var(--bg-gray);
    padding: 1.5rem;
    border-radius: var(--border-radius);
}

.entry-content code {
    background-color: var(--bg-gray);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.9em;
    color: var(--primary-blue-dark);
}

.entry-content pre {
    background-color: var(--bg-gray);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin: 2rem 0;
}

.entry-content pre code {
    background: none;
    padding: 0;
    color: var(--dark-gray);
}

.entry-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--bg-gray-dark);
}

.post-tags,
.post-categories {
    margin-bottom: 2rem;
}

.tags-title,
.categories-title {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-link {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--bg-gray);
    color: var(--primary-blue);
    text-decoration: none;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition-base);
}

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

.categories-list a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    margin-right: 0.5rem;
}

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

.page-links {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--bg-gray-dark);
}

/* Pagination */
.pagination,
.page-numbers {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin: 3rem 0;
    list-style: none;
    padding: 0;
}

.pagination a,
.pagination span,
.page-numbers a,
.page-numbers span {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 1px solid var(--bg-gray-dark);
    border-radius: var(--radius);
    color: var(--dark-gray);
    text-decoration: none;
    transition: var(--transition-base);
    min-width: 2.5rem;
    text-align: center;
}

.pagination a:hover,
.page-numbers a:hover {
    background-color: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.pagination .current,
.page-numbers .current {
    background-color: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
    font-weight: 600;
}

.pagination .prev,
.pagination .next,
.page-numbers .prev,
.page-numbers .next {
    font-weight: 600;
}

/* ============================================
   Breadcrumbs
   ============================================ */

.breadcrumbs {
    margin-bottom: 2rem;
}

.breadcrumbs ol {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.875rem;
}

.breadcrumbs li {
    margin: 0;
    padding: 0;
}

.breadcrumbs li:not(:last-child)::after {
    content: "/";
    margin: 0 0.5rem;
    color: var(--light-gray);
}

.breadcrumbs a {
    color: var(--primary-blue);
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

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

.error-404 {
    text-align: center;
    padding: 5rem 0;
}

.error-404 h1 {
    font-size: 6rem;
    margin-bottom: 1rem;
}

.error-404 h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.error-404 p {
    font-size: 1.25rem;
    color: var(--light-gray);
    margin-bottom: 2rem;
}

.error-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

@media (min-width: 640px) {
    .error-actions {
        flex-direction: row;
    }
}

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

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .entry-title {
        font-size: 2rem;
    }
    
    .entry-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .author-box {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }
    
    .author-avatar {
        margin: 0 auto;
    }
    
    .related-posts-grid {
        grid-template-columns: 1fr;
    }
    
    .post-navigation {
        flex-direction: column;
    }
    
    .post-navigation .nav-next {
        text-align: left;
    }
    
    .single-post-content {
        padding: 0 1rem;
    }
    
    .entry-content {
        font-size: 1rem;
    }
    
    .entry-content h2 {
        font-size: 1.75rem;
    }
    
    .entry-content h3 {
        font-size: 1.5rem;
    }
}

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

.section-footer {
    margin-top: 2rem;
    padding-top: 2rem;
    text-align: center;
}

.section-footer .btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-base);
    display: inline-block;
    border-radius: var(--border-radius);
}

.section-footer .btn-outline:hover {
    background-color: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   Utilities
   ============================================ */

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

/* ============================================
   Archive & Category Pages
   ============================================ */

.archive-description {
    margin-top: 1rem;
    color: var(--medium-gray);
    line-height: 1.7;
}

.category-header {
    margin-bottom: 2rem;
}

.category-info {
    width: 100%;
}

.category-name {
    color: var(--primary-blue);
}

.category-stats {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--bg-gray-dark);
}

.post-count {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--bg-gray);
    border-radius: var(--border-radius);
    color: var(--medium-gray);
    font-size: 0.9375rem;
    font-weight: 500;
}

/* ============================================
   Backlinks Section
   ============================================ */

.footer-backlinks-section {
    width: 100%;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--bg-gray-dark);
}

.footer-backlinks-section h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

.footer-backlinks-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-backlinks-list li {
    margin: 0;
}

.footer-backlinks-list a {
    color: var(--medium-gray);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: var(--transition-base);
    padding: 0.25rem 0;
    display: inline-block;
}

.footer-backlinks-list a:hover {
    color: var(--primary-blue);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .footer-backlinks-list {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .footer-backlinks-section {
        margin-top: 1.5rem;
        padding-top: 1.5rem;
    }
}