:root {
    --bg-color: #0d1117;
    --bg-secondary: #161b22;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #3182ce;
    --card-bg: #1c2128;
    --card-hover: #22272e;
    
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'Fira Code', Consolas, Monaco, monospace;
    
    --transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

::selection {
    background-color: var(--accent);
    color: #fff;
}

h1, h2, h3, h4, h5, h6 {
    color: #ffffff;
    font-weight: 600;
    line-height: 1.2;
}

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

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

ul { list-style: none; }

.container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent);
    color: #fff;
    padding: 8px;
    z-index: 100;
}
.skip-link:focus {
    top: 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    border: 1px solid var(--accent);
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: rgba(88, 166, 255, 0.1);
}

.btn-secondary {
    background-color: var(--accent);
    color: #fff;
}
.btn-secondary:hover {
    background-color: var(--accent-hover);
    color: #fff;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    height: 80px;
    background-color: rgba(13, 17, 23, 0.85);
    backdrop-filter: blur(10px);
    z-index: 50;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.header.scrolled {
    height: 60px;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.nav-container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    color: #fff;
    letter-spacing: -1px;
}

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

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}
.nav-links a:hover {
    color: var(--accent);
}

/* Sections */
section {
    padding: 100px 0;
}

.section-title {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2.5rem;
}

.section-title::before {
    margin-right: 10px;
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 400;
}

.section-title .line {
    content: "";
    display: block;
    height: 1px;
    flex: 1;
    background-color: var(--card-hover);
    margin-left: 20px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.greeting {
    color: var(--accent);
    font-family: var(--font-mono);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.hero .title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: #fff;
}
.hero .title .accent {
    color: var(--text-secondary);
}

.hero .subtitle {
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: 3rem;
    color: var(--text-secondary);
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
}

.about-text p {
    margin-bottom: 1rem;
}

.manifesto {
    border-left: 3px solid var(--accent);
    padding-left: 1rem;
    margin: 2rem 0;
    font-style: italic;
    color: #fff;
    background-color: var(--card-bg);
    padding: 1rem;
    border-radius: 0 4px 4px 0;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 4px;
    border: 1px solid var(--card-hover);
}

.stat-card h3 {
    color: var(--accent);
    margin-bottom: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background-color: var(--card-bg);
    border-radius: 4px;
    padding: 2rem 1.75rem;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    border: 1px solid transparent;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 10px 30px -15px rgba(0,0,0,0.5);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.folder-icon {
    color: var(--accent);
}

.project-links a {
    color: var(--text-secondary);
}
.project-links a:hover {
    color: var(--accent);
}

.project-content h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.project-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: auto;
}

/* Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.skill-category {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 4px;
    border-left: 2px solid var(--accent);
}

.skill-category h3 {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    color: #fff;
}

.skill-category p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Contact */
.contact {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-heading {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.contact-desc {
    margin-bottom: 3rem;
}

.contact-actions {
    margin-top: 2rem;
}

/* Footer */
.footer {
    padding: 2rem 0;
    text-align: center;
    background-color: var(--bg-secondary);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.social-links a {
    color: var(--text-secondary);
}

.social-links a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

.footer-text {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Responsive & Print */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero .title { font-size: 3rem; }
    .about-content { grid-template-columns: 1fr; }
    .section-title { font-size: 1.25rem; }
}

@media print {
    body {
        background-color: #fff;
        color: #000;
        font-size: 12pt;
    }
    .header, .hero-actions, .contact-actions, .skip-link, .nav-links {
        display: none !important;
    }
    h1, h2, h3, h4, .greeting, .logo, .title, a {
        color: #000 !important;
    }
    .project-card, .skill-category, .stat-card, .manifesto {
        background-color: #f8f9fa !important;
        border: 1px solid #ddd !important;
        page-break-inside: avoid;
        color: #000 !important;
    }
    .project-card p, .skill-category p, .stat-card p, .manifesto {
        color: #333 !important;
    }
    .project-tech {
        color: #555 !important;
    }
    section {
        padding: 20px 0 !important;
        page-break-inside: avoid;
    }
    .hero {
        min-height: auto;
        padding-top: 0;
        margin-bottom: 2rem;
    }
}