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

:root {
    --primary: #2dd4bf;
    --secondary: #14b8a6;
    --accent: #5eead4;
    --dark: #0f172a;
    --darker: #020617;
    --light: #f1f5f9;
    --gray: #64748b;
    --card-bg: #1e293b;
    --terminal-green: #10b981;
}

body {
    font-family: 'Courier New', monospace, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--light);
    background: var(--darker);
    transition: all 0.3s ease;
}

body.light-theme {
    --dark: #f8fafc;
    --darker: #ffffff;
    --light: #0f172a;
    --card-bg: #f1f5f9;
    --gray: #475569;
}


body.vim-theme {
    --primary: #10b981;
    --secondary: #059669;
    --accent: #34d399;
    --darker: #0a0e0a;
    --card-bg: #1a1f1a;
    --terminal-green: #10b981;
}

.theme-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 10px;
    background: var(--card-bg);
    padding: 10px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.theme-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 20px;
    transition: transform 0.2s, box-shadow 0.2s;
    background: var(--primary);
}

.theme-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.theme-btn.active {
    box-shadow: 0 0 0 3px var(--accent);
}

header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--darker);
    padding: 5rem 2rem 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 48%, rgba(255,255,255,0.1) 49%, rgba(255,255,255,0.1) 51%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(255,255,255,0.1) 49%, rgba(255,255,255,0.1) 51%, transparent 52%);
    background-size: 30px 30px;
    opacity: 0.3;
}

.terminal-header {
    position: relative;
    z-index: 1;
    font-family: 'Courier New', monospace;
}

.terminal-line {
    font-size: 1.2rem;
    margin: 0.5rem 0;
    opacity: 0.9;
}

.prompt {
    color: var(--terminal-green);
    font-weight: bold;
}

header h1 {
    font-size: 3rem;
    margin: 1rem 0;
    position: relative;
    z-index: 1;
    font-weight: 700;
}

.tagline {
    font-size: 1.3rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
    font-style: italic;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

section {
    margin-bottom: 3rem;
}

h2 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary);
    display: inline-block;
    font-family: 'Courier New', monospace;
}

h2::before {
    content: '// ';
    opacity: 0.6;
}

.intro-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    border-left: 4px solid var(--primary);
    margin-bottom: 2rem;
}

.intro-card p {
    font-size: 1.1rem;
    color: var(--light);
    line-height: 1.9;
    margin-bottom: 1rem;
}

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

.passion-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    transition: transform 0.3s, box-shadow 0.3s;
    border-top: 4px solid var(--primary);
}

.passion-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.3);
}

.passion-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.passion-card h3 {
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-family: 'Courier New', monospace;
}

.passion-card p {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.link-highlight {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

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

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tech-tag {
    background: var(--darker);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    border: 1px solid var(--primary);
    font-family: 'Courier New', monospace;
}

.skills-section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    margin-top: 2rem;
}

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

.skills-category h3 {
    color: var(--accent);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-family: 'Courier New', monospace;
}

.skills-category h3::before {
    content: '» ';
    color: var(--primary);
}

.quote-section {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    border-left: 6px solid var(--primary);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    margin: 3rem 0;
}

.quote-section blockquote {
    font-size: 1.4rem;
    font-style: italic;
    color: var(--light);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.quote-author {
    color: var(--gray);
    font-size: 1rem;
}

.contact-section {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

.contact-section h2 {
    display: block;
    text-align: center;
    width: 100%;
}

.contact-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary);
    color: var(--darker);
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    font-family: 'Courier New', monospace;
}

.contact-btn:hover {
    background: var(--secondary);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.3);
}

footer {
    background: var(--card-bg);
    color: var(--gray);
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
    border-top: 2px solid var(--primary);
}

footer p {
    font-family: 'Courier New', monospace;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .theme-switcher {
        top: 10px;
        right: 10px;
    }

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

    .quote-section blockquote {
        font-size: 1.1rem;
    }
}