:root {
    --bg-color: #0f0f11;
    --text-color: #f0f0f0;
    --accent-color: #6c5ce7;
    --secondary-text: #a0a0a0;
    --card-bg: #1a1a1d;
    --font-main: 'Inter', sans-serif;
}

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

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

a {
    text-decoration: none;
    color: inherit;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    position: fixed;
    width: 100%;
    top: 0;
    background: rgba(15, 15, 17, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -1px;
}

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

.nav-links a {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--secondary-text);
    transition: color 0.3s ease;
}

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

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.menu-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 3px 0;
    transition: 0.4s;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10%;
    position: relative;
}

.hero-content {
    max-width: 600px;
    z-index: 2;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.highlight {
    background: linear-gradient(45deg, #6c5ce7, #a29bfe);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--secondary-text);
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: transform 0.2s ease;
}

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

.btn.primary:hover {
    transform: translateY(-2px);
}

.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
}

#network-canvas {
    width: 400px;
    height: 400px;
    /* Canvas will be controlled by JS, but we can set a base size here or let it fill */
}

/* Typewriter Cursor */
#typewriter {
    border-right: 2px solid var(--accent-color);
    padding-right: 5px;
    animation: blink 0.7s infinite;
}

@keyframes blink {
    0% { border-color: transparent; }
    50% { border-color: var(--accent-color); }
    100% { border-color: transparent; }
}

/* Projects Section */
.projects {
    padding: 5rem 10%;
}

.projects h2, .about h2, .contact h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

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

.project-card {
    background-color: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s ease;
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-10px);
}

.card-image {
    height: 200px;
    width: 100%;
    object-fit: cover;
    background-color: #2a2a2e;
}

.card-image.contain-image {
    object-fit: contain;
    background-color: #000; /* Darker background for contained images */
    padding: 10px; /* Add some breathing room */
}

.card-info {
    padding: 1.5rem;
}

.card-info h3 {
    margin-bottom: 0.5rem;
}

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

/* About Section */
.about {
    padding: 5rem 10%;
    /* background-color: #141416; Removed to alternate colors */
}

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

.skills {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.skills span {
    padding: 0.5rem 1.5rem;
    border: 1px solid #333;
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--secondary-text);
}

/* Contact Section */
.contact {
    padding: 8rem 10%;
    text-align: center;
    background-color: #141416;
}

.btn.secondary {
    border: 1px solid var(--text-color);
    margin-top: 2rem;
}

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

/* Footer */
footer {
    padding: 2rem;
    text-align: center;
    color: var(--secondary-text);
    font-size: 0.8rem;
    border-top: 1px solid #222;
}

/* Expertise Section */
.expertise {
    padding: 5rem 10%;
    background-color: #141416;
}

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

.expertise-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid #333;
    transition: transform 0.3s ease;
}

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

.expertise-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.expertise-card h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.expertise-card p {
    color: var(--secondary-text);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.expertise-list {
    list-style: none;
}

.expertise-list li {
    margin-bottom: 0.5rem;
    color: var(--secondary-text);
    display: flex;
    align-items: center;
}

.expertise-list li::before {
    content: "▹";
    color: var(--accent-color);
    margin-right: 10px;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem 5%;
    }

    .menu-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: #1a1a1d;
        padding-top: 80px;
        transition: 0.3s ease-in-out;
        box-shadow: -5px 0 15px rgba(0,0,0,0.5);
        gap: 2rem;
        align-items: center;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links a {
        font-size: 1.2rem;
        display: block;
        padding: 1rem;
    }

    /* Hamburger Animation */
    .menu-toggle.is-active .bar:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .menu-toggle.is-active .bar:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.is-active .bar:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    .hero {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        padding-top: 100px;
        height: auto;
        min-height: 100vh;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-visual {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        margin-top: 3rem;
        width: 100%;
        display: flex;
        justify-content: center;
    }
    
    #network-canvas {
        width: 300px;
        height: 300px;
    }

    .projects, .expertise, .about, .contact {
        padding: 4rem 5%;
    }

    .projects h2, .about h2, .contact h2, .expertise h2 {
        font-size: 2rem;
    }

    .project-grid, .expertise-grid {
        grid-template-columns: 1fr;
    }
}