/* Dark Professional Portfolio Theme */
:root {
  /* Color palette - Darker, more sophisticated */
  --bg-primary: #1a1a1a;
  --bg-secondary: #0d0d0d;
  --bg-container: #242424;
  --bg-card: #2a2a2a;
  
  /* Text colors */
  --text-primary: #ffffff;
  --text-secondary: #b8b8b8;
  --text-muted: #808080;
  --text-accent: #3b82f6;
  
  /* Accent colors */
  --accent-primary: #3b82f6;
  --accent-secondary: #60a5fa;
  --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
  
  /* Border and shadow */
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 71, 87, 0.5);
  --shadow-color: rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 10px 40px rgba(0, 0, 0, 0.4);
  
  /* Font family */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', 'Helvetica', sans-serif;
  --font-mono: 'Fira Code', 'Consolas', 'Monaco', monospace;
}

/* Base styles */
body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.8;
    min-height: 100vh;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Remove grid pattern for cleaner look */
body::before {
    display: none;
}

.navbar {
    background: var(--bg-secondary);
    padding: 24px 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar a {
    color: var(--text-secondary);
    margin: 0 24px;
    text-decoration: none;
    font-weight: 400;
    font-size: 0.9em;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: all 0.3s ease;
    position: relative;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 60px;
    background: transparent;
    position: relative;
    z-index: 1;
}

h1 {
    font-size: 4em;
    margin-bottom: 0.3em;
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-top: 0;
}

h1 .highlight {
    color: var(--text-accent);
}

h2 {
    color: var(--text-primary);
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
    font-family: var(--font-family);
    font-weight: 600;
    font-size: 2em;
    margin-top: 3em;
    margin-bottom: 1.5em;
}

/* Hero Section */
.hero-section {
    min-height: 80vh;
    display: flex;
    align-items: center;
    margin-bottom: 4em;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    width: 100%;
}

.hero-text {
    padding-right: 40px;
}

.welcome-text {
    font-size: 0.85em;
    color: var(--text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 20px;
    font-weight: 500;
}

h1 {
    font-size: 4em;
    margin-bottom: 0.2em;
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-top: 0;
}

h1 .highlight {
    color: var(--text-accent);
}

.subtitle {
    font-size: 3em;
    color: var(--text-primary);
    margin-bottom: 0.5em;
    font-weight: 300;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.1em;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2em;
    max-width: 600px;
}

.hero-links {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.hero-link {
    width: 50px;
    height: 50px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.2em;
    transition: all 0.3s ease;
    text-decoration: none;
}

.hero-link:hover {
    border-color: var(--text-accent);
    color: var(--text-accent);
    transform: translateY(-3px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Combined Section Styling */
.combined-section {
    margin-bottom: 3em;
    padding: 48px;
    border: 1px solid var(--border-color);
    background: var(--bg-container);
    border-radius: 12px;
}

.combined-section h2 {
    margin-top: 0;
    margin-bottom: 1em;
}

.combined-section h3 {
    font-size: 1.2em;
    color: var(--text-primary);
    margin-bottom: 1em;
    font-weight: 600;
}

.about-text {
    font-size: 1.05em;
    color: var(--text-secondary);
    margin-bottom: 2.5em;
    line-height: 1.8;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-top: 2em;
}

.info-column {
    min-width: 0;
}

.tag-list.compact {
    gap: 8px;
}

.tag-list.compact li {
    font-size: 0.85em;
    padding: 8px 16px;
}

/* Legacy styles for other pages */
.profile-section {
    margin-bottom: 2em;
    padding: 32px;
    border: 1px solid var(--border-color);
    background: var(--bg-container);
    border-radius: 12px;
}

.profile-title {
    font-size: 1.6em;
    color: var(--text-primary);
    margin-bottom: 0.5em;
    font-weight: 600;
}

.profile-text {
    font-size: 1.05em;
    color: var(--text-secondary);
    margin-bottom: 1em;
    line-height: 1.8;
}

.social-links a {
    color: var(--text-primary);
    margin-right: 24px;
    font-size: 1.05em;
    text-decoration: none;
    letter-spacing: 0.3px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid transparent;
}

.social-links a:hover {
    color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.skills, .focus {
    margin: 2em 0;
    padding: 28px;
    border: 1px solid var(--border-color);
    background: var(--bg-container);
    border-radius: 12px;
}

.skills-title, .focus-title {
    font-size: 1.3em;
    color: var(--text-primary);
    margin-bottom: 0.8em;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    list-style: none;
    padding: 0;
}

.tag-list li {
    background: var(--bg-card);
    color: var(--text-secondary);
    padding: 12px 24px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9em;
    letter-spacing: 0.3px;
    font-weight: 400;
    transition: all 0.3s ease;
}

.tag-list li:hover {
    border-color: var(--text-accent);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.profile-avatar {
    width: 100%;
    max-width: 450px;
    height: auto;
    border-radius: 8px;
    object-fit: cover;
    box-shadow: var(--shadow-glow);
}

.inline-link {
    color: var(--text-accent);
    text-decoration: underline;
    text-decoration-color: var(--text-accent);
    text-underline-offset: 3px;
    transition: all 0.3s ease;
}

.inline-link:hover {
    color: var(--text-primary);
    text-decoration-color: var(--text-primary);
}

.section-title {
    color: var(--text-primary);
    font-size: 1.4em;
    margin-top: 2em;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.project, .article {
    margin-bottom: 32px;
    padding: 32px;
    border: 1px solid var(--border-color);
    background: var(--bg-container);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.project:hover, .article:hover {
    transform: translateY(-4px);
    border-color: var(--text-accent);
}

.project-title, .article-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.3em;
    letter-spacing: 0.3px;
    margin-bottom: 0.5em;
}

.language-tag {
    display: inline-block;
    color: var(--text-accent);
    font-size: 0.9em;
    margin-right: 16px;
    padding: 4px 12px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

footer {
    text-align: center;
    margin-top: 60px;
    color: var(--text-muted);
    font-size: 0.9em;
    padding: 32px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
}

footer a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-text {
        padding-right: 0;
        text-align: center;
    }
    
    .hero-links {
        justify-content: center;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    h1 {
        font-size: 3em;
    }
    
    .subtitle {
        font-size: 2em;
    }
    
    .container {
        padding: 40px 30px;
    }
    
    .combined-section {
        padding: 32px;
    }
}

@media (max-width: 640px) {
    h1 {
        font-size: 2.5em;
    }
    
    .subtitle {
        font-size: 1.5em;
    }
    
    .navbar a {
        margin: 0 12px;
        font-size: 0.8em;
    }
    
    .container {
        padding: 30px 20px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* Contact page styles */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-top: 3em;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 32px;
    border: 1px solid var(--border-color);
    background: var(--bg-container);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
}

.contact-card:hover {
    transform: translateY(-8px);
    border-color: var(--text-accent);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

.contact-card i {
    font-size: 3em;
    color: var(--text-accent);
    margin-bottom: 20px;
}

.contact-card h3 {
    color: var(--text-primary);
    font-size: 1.4em;
    margin: 0 0 12px 0;
    font-weight: 600;
}

.contact-card p {
    color: var(--text-secondary);
    font-size: 1em;
    margin: 0;
}

.lead {
    font-size: 1.2em;
    color: var(--text-secondary);
    margin-bottom: 2em;
    line-height: 1.6;
    text-align: center;
}

.blog-intro {
    font-size: 1.1em;
    color: var(--text-secondary);
    margin-bottom: 2.5em;
    padding: 24px;
    background: var(--bg-container);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    line-height: 1.7;
}

.substack-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-accent);
    text-decoration: none;
    margin-left: 8px;
    padding: 6px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: all 0.3s ease;
}

.substack-link:hover {
    background: var(--bg-card);
    border-color: var(--text-accent);
    transform: translateY(-2px);
}