:root {
    --bg-color: #0b0f19;
    --surface-color: #121827;
    --surface-hover: #1e293b;
    --border-color: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-glow: #0ea5e9;
    --accent-teal: #2dd4bf;
    
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Grid */
.bg-grid {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        linear-gradient(to right, rgba(30, 41, 59, 0.3) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(30, 41, 59, 0.3) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    pointer-events: none;
}

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

/* Navigation */
.navbar {
    padding: 1.5rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.logo-img {
    height: 32px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

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

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background: var(--accent-glow);
    color: white;
    box-shadow: 0 0 20px rgba(14, 165, 233, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--accent-teal);
    box-shadow: 0 0 20px rgba(45, 212, 191, 0.2);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem;
}

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

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(45, 212, 191, 0.1);
    color: var(--accent-teal);
    border: 1px solid rgba(45, 212, 191, 0.2);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.highlight {
    color: var(--text-primary);
    font-weight: 600;
}

/* Services */
.services {
    padding: 8rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 4rem;
    letter-spacing: -0.02em;
}

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

.service-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 12px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-glow);
}

.icon-wrapper {
    color: var(--accent-teal);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Terminal */
.terminal-section {
    padding: 4rem 0 8rem;
}

.terminal-window {
    background: #000;
    border: 1px solid #333;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.terminal-header {
    background: #1a1b26;
    padding: 0.75rem 1rem;
    display: flex;
    gap: 8px;
    border-bottom: 1px solid #333;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.red { background: #ff5f56; }
.yellow { background: #ffbd2e; }
.green { background: #27c93f; }

.terminal-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.terminal-body .prompt { color: var(--accent-teal); }
.terminal-body .log { color: var(--text-secondary); }
.terminal-body .success { color: #10b981; }

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
    background: var(--surface-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.footer-brand h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: var(--text-secondary);
}

.footer-bottom {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Linkhub */
.linkhub-section {
    padding: 8rem 0;
    position: relative;
}

.linkhub-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.linkhub-card {
    display: flex;
    align-items: center;
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid rgba(45, 212, 191, 0.2);
    border-radius: 16px;
    padding: 1.5rem 2rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(8px);
}

.linkhub-card:hover {
    transform: scale(1.02);
    background: rgba(30, 41, 59, 0.8);
    border-color: var(--accent-teal);
    box-shadow: 0 10px 30px rgba(45, 212, 191, 0.15);
}

.linkhub-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.5rem;
    flex-shrink: 0;
}

.linkhub-card.linkedin .linkhub-icon { color: #0077b5; background: rgba(0, 119, 181, 0.1); }
.linkhub-card.github .linkhub-icon { color: #f8fafc; background: rgba(248, 250, 252, 0.1); }

.linkhub-content {
    flex-grow: 1;
}

.linkhub-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.linkhub-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
}

.linkhub-arrow {
    color: var(--text-secondary);
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.linkhub-card:hover .linkhub-arrow {
    color: var(--accent-teal);
    transform: translateX(5px);
}

@media (max-width: 768px) {
    .hero h1 { font-size: 3rem; }
    .nav-links { display: none; }
    .footer-content { flex-direction: column; gap: 2rem; text-align: center; }
}