/*
Theme Name: Sybil Blog
Theme URI: https://sybilsolutions.ai
Author: Sybil Solutions
Author URI: https://sybilsolutions.ai
Description: A modern, dark-themed WordPress blog theme inspired by Sybil Solutions. Features clean typography, project showcases, and a professional tech-focused design.
Version: 1.0.0
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: sybil-blog
Tags: blog, dark, modern, tech, portfolio, responsive
*/

/* ================================
   CSS Variables & Reset
   ================================ */
:root {
    --color-bg-primary: #0a0a0a;
    --color-bg-secondary: #111111;
    --color-bg-tertiary: #1a1a1a;
    --color-bg-card: #141414;
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-text-muted: #666666;
    --color-accent: #3b82f6;
    --color-accent-hover: #2563eb;
    --color-border: #2a2a2a;
    --color-border-light: #333333;
    
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

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

/* ================================
   Container & Layout
   ================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-narrow {
    max-width: 800px;
}

/* ================================
   Header & Navigation
   ================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

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

.site-logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

.main-navigation {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-menu a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu .current-menu-item a {
    color: var(--color-text-primary);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
}

/* ================================
   Hero Section
   ================================ */
.hero-section {
    padding: calc(64px + var(--spacing-4xl)) 0 var(--spacing-4xl);
    background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

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

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin-bottom: var(--spacing-xl);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ================================
   Buttons
   ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--color-text-primary);
    color: var(--color-bg-primary);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-light);
}

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

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.8125rem;
}

/* ================================
   Stats Section
   ================================ */
.stats-section {
    padding: var(--spacing-3xl) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-text-primary);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

/* ================================
   Section Headers
   ================================ */
.section-header {
    margin-bottom: var(--spacing-2xl);
}

.section-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
}

/* ================================
   Projects Section
   ================================ */
.projects-section {
    padding: var(--spacing-4xl) 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.project-card:hover {
    border-color: var(--color-border-light);
    transform: translateY(-4px);
}

.project-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.project-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

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

.project-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.project-tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 500;
    font-family: var(--font-mono);
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
}

.tag-primary {
    background-color: rgba(59, 130, 246, 0.15);
    color: var(--color-accent);
}

/* ================================
   Capabilities Section
   ================================ */
.capabilities-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-bg-secondary);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.capability-card {
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background-color: var(--color-bg-card);
}

.capability-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.capability-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.capability-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ================================
   Work Section
   ================================ */
.work-section {
    padding: var(--spacing-4xl) 0;
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.work-card {
    position: relative;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.work-card:hover {
    border-color: var(--color-border-light);
}

.work-image {
    aspect-ratio: 16 / 10;
    background-color: var(--color-bg-tertiary);
    overflow: hidden;
}

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

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

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

.work-type {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.work-title {
    font-size: 1rem;
    font-weight: 600;
}

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

/* ================================
   Clients Section
   ================================ */
.clients-section {
    padding: var(--spacing-3xl) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.clients-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-2xl);
}

.client-logo {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.client-logo:hover {
    color: var(--color-text-secondary);
}

/* ================================
   Testimonials Section
   ================================ */
.testimonials-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-bg-secondary);
}

.testimonial-card {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.testimonial-quote {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 500;
    line-height: 1.5;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xl);
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

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

.testimonial-name {
    font-weight: 600;
    font-size: 0.9375rem;
}

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

/* ================================
   Blog Section
   ================================ */
.blog-section {
    padding: var(--spacing-4xl) 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.blog-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.blog-card:hover {
    border-color: var(--color-border-light);
}

.blog-image {
    aspect-ratio: 16 / 9;
    background-color: var(--color-bg-tertiary);
    overflow: hidden;
}

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

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

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

.blog-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.blog-title {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
}

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

.blog-excerpt {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ================================
   Newsletter Section
   ================================ */
.newsletter-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

.newsletter-content {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.newsletter-input {
    flex: 1;
    padding: var(--spacing-md);
    font-size: 0.875rem;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.newsletter-input::placeholder {
    color: var(--color-text-muted);
}

/* ================================
   Footer
   ================================ */
.site-footer {
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

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

.footer-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.footer-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

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

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.footer-social a:hover {
    color: var(--color-text-primary);
}

/* ================================
   Single Post
   ================================ */
.single-header {
    padding: calc(64px + var(--spacing-3xl)) 0 var(--spacing-2xl);
    text-align: center;
}

.single-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.single-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.single-featured-image {
    margin-bottom: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.single-content {
    max-width: 720px;
    margin: 0 auto;
    padding-bottom: var(--spacing-4xl);
}

.single-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: var(--spacing-2xl) 0 var(--spacing-md);
}

.single-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

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

.single-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

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

.single-content ul,
.single-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
    color: var(--color-text-secondary);
}

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

.single-content blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    font-style: italic;
    color: var(--color-text-primary);
}

.single-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background-color: var(--color-bg-tertiary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.single-content pre {
    background-color: var(--color-bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
}

.single-content pre code {
    background: none;
    padding: 0;
}

/* ================================
   Archive / Blog List
   ================================ */
.archive-header {
    padding: calc(64px + var(--spacing-3xl)) 0 var(--spacing-2xl);
    text-align: center;
}

.archive-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
}

.archive-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: var(--spacing-md) auto 0;
}

/* ================================
   Pagination
   ================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-border);
}

.page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.page-numbers:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-border-light);
}

.page-numbers.current {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-text-primary);
}

/* ================================
   Sidebar
   ================================ */
.sidebar {
    padding: var(--spacing-xl);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

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

.widget:last-child {
    margin-bottom: 0;
}

.widget-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.widget ul {
    list-style: none;
}

.widget li {
    margin-bottom: var(--spacing-sm);
}

.widget a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.widget a:hover {
    color: var(--color-text-primary);
}

/* ================================
   Responsive
   ================================ */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .main-navigation {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid,
    .work-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .clients-grid {
        gap: var(--spacing-lg);
    }
}

/* ================================
   Utilities
   ================================ */
.text-center {
    text-align: center;
}

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

.mb-0 {
    margin-bottom: 0;
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

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

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

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

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

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

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

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Header scrolled state */
.site-header.is-scrolled {
    background-color: rgba(10, 10, 10, 0.95);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}