/* Reset & Base Styles */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    
    body {
        background-color: #000;
        /* Replaced 500vh on body with height on #hero-timeline */
        overflow-x: hidden;
        font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
        color: #fff;
    }
    
    #hero-timeline {
        height: 500vh;
        width: 100vw;
        position: relative;
    }
    
    .sticky-container {
        position: sticky;
        top: 0;
        height: 100vh;
        width: 100vw;
        overflow: hidden;
    }
    
    /* Loading Screen */
    #loading {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background-color: #000;
        color: #fff;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        z-index: 50;
        transition: opacity 0.8s ease;
    }
    #loading-text {
        font-weight: 200;
        font-size: 2rem;
        letter-spacing: 2px;
        margin-bottom: 20px;
    }
    #loading-bar-container {
        width: 200px;
        height: 2px;
        background: #333;
    }
    #loading-bar {
        height: 100%;
        width: 0%;
        background: #fff;
        transition: width 0.1s linear;
    }

    /* Navigation Bar */
    #navbar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 30px 5vw;
        z-index: 20;
        color: #fff;
    }
    .nav-brand {
        font-family: 'Helvetica Neue', sans-serif;
        font-weight: 300;
        letter-spacing: 2px;
        font-size: 1.2vw;
        text-transform: uppercase;
    }
    .nav-links {
        display: flex;
        list-style: none;
        gap: 40px;
    }
    .nav-links a {
        color: #fff;
        text-decoration: none;
        font-weight: 300;
        font-size: 0.9vw;
        letter-spacing: 1px;
        transition: opacity 0.3s ease;
    }
    .nav-links a:hover {
        opacity: 0.6;
    }

    /* Progress Indicator */
    #progress-bar {
        position: fixed;
        top: 0;
        left: 0;
        height: 3px;
        background: #fff;
        box-shadow: 0 0 10px rgba(255, 215, 0, 0.8); /* Golden glow */
        width: 0%;
        z-index: 10;
    }



    /* Canvas setup */
    #hero-lightpass {
        position: absolute;
        top: 50%;
        left: 50%;
        /* Baseline transform, will be modified by JS for pseudo-3D effect */
        transform: translate(-50%, -50%) scale(1);
        width: 100vw;
        height: 100vh;
        object-fit: cover; /* Ensures canvas fills screen without distortion */
        z-index: 1;
        will-change: transform;
    }

    /* Vignette Overlay */
    .vignette {
        position: absolute;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: radial-gradient(circle, rgba(0,0,0,0) 30%, rgba(0,0,0,0.85) 100%);
        z-index: 2;
        pointer-events: none;
    }

    /* Text Overlays */
    .text-overlay {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 3;
        color: white;
        font-weight: 200; /* Thin font weight */
        font-size: 4vw;
        text-align: center;
        letter-spacing: 6px;
        text-transform: uppercase;
        opacity: 0;
        transition: opacity 1s ease; /* Smooth cinematic fade in/out */
        pointer-events: none;
        white-space: nowrap;
        text-shadow: 0px 4px 20px rgba(0, 0, 0, 0.9);
    }
    
    @media (max-width: 768px) {
        .text-overlay { font-size: 8vw; }
    }

    /* About Section */
    #about-section {
        position: absolute;
        top: 0;
        left: 0;
        width: 50vw;
        height: 100vh;
        background-color: rgba(0, 0, 0, 0.95);
        color: #fff;
        z-index: 5;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        padding: 5vw;
        box-sizing: border-box;
        opacity: 0;
        transition: opacity 0.4s ease;
        pointer-events: none;
    }
    
    #about-section.visible {
        opacity: 1;
    }
    
    .about-content {
        width: 100%;
        opacity: 0;
        transition: opacity 0.4s ease 0.4s; /* Text fades in after background is visible */
    }
    
    #about-section.visible .about-content {
        opacity: 1;
    }
    
    .about-content h1 {
        font-family: 'Helvetica Neue', sans-serif;
        font-weight: 200;
        font-size: 3.5vw;
        margin-bottom: 10px;
        letter-spacing: 3px;
    }
    
    .about-content h2 {
        font-weight: 300;
        font-size: 1.2vw;
        color: #aaa;
        margin-bottom: 30px;
        letter-spacing: 2px;
        text-transform: uppercase;
    }
    
    .about-content p {
        font-weight: 300;
        font-size: 1.1vw;
        line-height: 1.8;
        color: #ddd;
        margin-bottom: 40px;
        max-width: 90%;
    }
    
    .about-content .skills {
        display: flex;
        gap: 15px;
        flex-wrap: wrap;
        margin-bottom: 40px;
    }
    
    .about-content .skills span {
        border: 1px solid #555;
        padding: 8px 16px;
        font-size: 0.9vw;
        border-radius: 20px;
        color: #bbb;
    }

    #about-btn {
        border: 1px solid #fff;
        background: transparent;
        color: #fff;
        padding: 15px 40px;
        font-size: 1.1vw;
        font-weight: 300;
        letter-spacing: 1px;
        cursor: pointer;
        transition: background 0.3s ease, color 0.3s ease;
        pointer-events: auto; /* Since about-section is none, we re-enable it if needed, but actually we'll toggle pointer-events in JS */
    }
    #about-btn:hover {
        background: #fff;
        color: #000;
    }

    @media (max-width: 768px) {
        #about-section {
            width: 100vw;
            background-color: rgba(0, 0, 0, 0.90);
        }
        .about-content h1 { font-size: 8vw; }
        .about-content h2 { font-size: 3.5vw; }
        .about-content p { font-size: 3.5vw; }
        .about-content .skills span { font-size: 3vw; }
        #about-btn { font-size: 4vw; padding: 12px 30px; }
        .nav-links { display: none; } /* hamburger logic needed for mobile */
    }

    /* ========================================================================= */
    /* NEW SECTIONS: PORTFOLIO EXTENSION */
    /* ========================================================================= */

    #main-content {
        background-color: #000;
        position: relative;
        z-index: 10; /* Above the fixed background elements */
    }

    .content-section {
        padding: 100px 5vw;
        border-bottom: 1px solid #1a1a1a;
    }

    .bg-alt {
        background-color: #050505;
    }

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

    .section-title {
        font-family: 'Helvetica Neue', sans-serif;
        font-weight: 200;
        font-size: 3rem;
        margin-bottom: 20px;
        letter-spacing: 2px;
        color: #fff;
    }

    .section-subtitle {
        font-weight: 300;
        color: #aaa;
        font-size: 1.2rem;
        margin-bottom: 60px;
        max-width: 600px;
    }

    .mt-large {
        margin-top: 100px;
    }

    /* Reveal Animation Classes */
    .reveal {
        opacity: 0;
        transform: translateY(40px);
        transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
    }
    .reveal.active {
        opacity: 1;
        transform: translateY(0);
    }

    /* Buttons */
    .btn-primary, .btn-secondary {
        display: inline-block;
        padding: 10px 24px;
        text-decoration: none;
        font-weight: 300;
        letter-spacing: 1px;
        font-size: 0.9rem;
        transition: all 0.3s ease;
        border: 1px solid transparent;
    }
    .btn-primary {
        background: #fff;
        color: #000;
    }
    .btn-primary:hover {
        background: #ccc;
    }
    .btn-secondary {
        background: transparent;
        color: #fff;
        border-color: #fff;
    }
    .btn-secondary:hover {
        background: #fff;
        color: #000;
    }

    /* --- Skills Section --- */
    .skills-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 40px;
    }
    .skill-category h3 {
        font-weight: 300;
        color: #ddd;
        margin-bottom: 20px;
        font-size: 1.5rem;
        letter-spacing: 1px;
    }
    .skill-chips {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
    }
    .skill-chips span {
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
        padding: 8px 16px;
        border-radius: 4px;
        font-size: 0.9rem;
        color: #bbb;
        transition: all 0.3s ease;
    }
    .skill-chips span:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 215, 0, 0.4);
        color: #fff;
        transform: translateY(-2px);
    }

    /* --- Projects Section --- */
    .projects-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
        gap: 40px;
    }
    @media (max-width: 768px) {
        .projects-grid {
            grid-template-columns: 1fr;
        }
    }
    .project-card {
        background: #0a0a0a;
        border: 1px solid #1a1a1a;
        overflow: hidden;
        transition: transform 0.4s ease, border-color 0.4s ease;
    }
    .project-card:hover {
        transform: translateY(-5px);
        border-color: #333;
    }
    .placeholder-img {
        width: 100%;
        height: 250px;
        background: #111;
        display: flex;
        justify-content: center;
        align-items: center;
        color: #555;
        font-weight: 200;
        font-size: 1.2rem;
        letter-spacing: 2px;
        border-bottom: 1px solid #1a1a1a;
    }
    .project-info {
        padding: 30px;
    }
    .project-info h3 {
        font-weight: 300;
        font-size: 1.5rem;
        margin-bottom: 15px;
    }
    .project-info p {
        color: #aaa;
        font-weight: 300;
        line-height: 1.6;
        margin-bottom: 20px;
        font-size: 0.95rem;
    }
    .project-tech {
        display: flex;
        gap: 10px;
        margin-bottom: 30px;
    }
    .project-tech span {
        font-size: 0.8rem;
        color: #888;
        background: #151515;
        padding: 4px 10px;
        border-radius: 2px;
    }
    .project-links {
        display: flex;
        gap: 15px;
    }

    /* --- Services Section --- */
    .services-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
    }
    .service-card {
        background: #080808;
        border: 1px solid #151515;
        padding: 40px 30px;
        text-align: center;
        transition: transform 0.4s ease, background 0.4s ease;
    }
    .service-card:hover {
        transform: translateY(-5px);
        background: #0c0c0c;
        border-color: #222;
    }
    .service-icon {
        font-size: 2.5rem;
        margin-bottom: 20px;
    }
    .service-card h3 {
        font-weight: 300;
        margin-bottom: 15px;
        font-size: 1.3rem;
    }
    .service-card p {
        color: #999;
        font-weight: 300;
        line-height: 1.6;
        font-size: 0.95rem;
    }

    /* --- Split Section (Exp & Ed) --- */
    .split-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }
    @media (max-width: 768px) {
        .split-container {
            grid-template-columns: 1fr;
        }
    }
    .timeline {
        border-left: 1px solid #333;
        padding-left: 30px;
        margin-top: 40px;
    }
    .timeline-item {
        position: relative;
        margin-bottom: 40px;
    }
    .timeline-item:last-child {
        margin-bottom: 0;
    }
    .timeline-dot {
        position: absolute;
        left: -35px;
        top: 5px;
        width: 10px;
        height: 10px;
        background: #fff;
        border-radius: 50%;
        box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    }
    .timeline-content h4 {
        font-weight: 300;
        font-size: 1.2rem;
        margin-bottom: 5px;
    }
    .timeline-date {
        display: block;
        color: rgba(255, 215, 0, 0.7);
        font-size: 0.85rem;
        margin-bottom: 15px;
        letter-spacing: 1px;
    }
    .timeline-content p {
        color: #aaa;
        font-weight: 300;
        line-height: 1.6;
        font-size: 0.95rem;
    }

    /* --- Certifications --- */
    .certs-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }
    .cert-card {
        border: 1px solid #222;
        padding: 30px;
        background: #080808;
    }
    .cert-card h4 {
        font-weight: 300;
        font-size: 1.1rem;
        margin-bottom: 10px;
    }
    .cert-card span {
        color: #777;
        font-size: 0.85rem;
        letter-spacing: 1px;
    }

    /* --- Testimonials --- */
    .testimonials-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
    }
    .testimonial-card {
        background: #0a0a0a;
        border: 1px solid #1a1a1a;
        padding: 40px;
    }
    .quote {
        color: #ddd;
        font-style: italic;
        font-weight: 300;
        line-height: 1.8;
        margin-bottom: 30px;
        position: relative;
    }
    .client-info {
        display: flex;
        align-items: center;
        gap: 15px;
    }
    .placeholder-avatar {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        background: #222;
    }
    .client-info h5 {
        font-weight: 300;
        font-size: 1rem;
        margin-bottom: 3px;
    }
    .client-info span {
        color: #777;
        font-size: 0.8rem;
    }

    /* --- Contact --- */
    .contact-wrapper {
        display: grid;
        grid-template-columns: 1fr 1.5fr;
        gap: 60px;
    }
    @media (max-width: 768px) {
        .contact-wrapper {
            grid-template-columns: 1fr;
        }
    }
    .contact-info .info-item {
        margin-bottom: 30px;
    }
    .info-item h4 {
        font-weight: 300;
        color: #777;
        font-size: 0.9rem;
        margin-bottom: 5px;
        text-transform: uppercase;
        letter-spacing: 1px;
    }
    .info-item a, .info-item p {
        color: #fff;
        text-decoration: none;
        font-size: 1.2rem;
        font-weight: 300;
    }
    .social-links {
        display: flex;
        gap: 20px;
        margin-top: 40px;
    }
    .social-links a {
        color: #fff;
        text-decoration: none;
        font-weight: 300;
        font-size: 0.9rem;
        opacity: 0.7;
        transition: opacity 0.3s ease;
    }
    .social-links a:hover {
        opacity: 1;
    }
    
    .contact-form {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    .contact-form input, .contact-form textarea {
        background: transparent;
        border: none;
        border-bottom: 1px solid #333;
        color: #fff;
        padding: 15px 0;
        font-family: inherit;
        font-size: 1rem;
        font-weight: 300;
        transition: border-color 0.3s ease;
    }
    .contact-form input:focus, .contact-form textarea:focus {
        outline: none;
        border-color: rgba(255, 215, 0, 0.6);
    }
    .submit-btn {
        margin-top: 20px;
        align-self: flex-start;
        cursor: pointer;
    }

    /* --- Footer --- */
    footer {
        border-top: 1px solid #111;
        padding: 80px 5vw 40px;
        background: #000;
    }
    .footer-content {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        flex-wrap: wrap;
        gap: 40px;
        margin-bottom: 60px;
    }
    .footer-brand h3 {
        font-weight: 300;
        letter-spacing: 2px;
        font-size: 1.5rem;
        margin-bottom: 10px;
    }
    .footer-brand p {
        color: #777;
        font-weight: 300;
    }
    .footer-links {
        display: flex;
        gap: 30px;
    }
    .footer-links a {
        color: #aaa;
        text-decoration: none;
        font-weight: 300;
        transition: color 0.3s ease;
    }
    .footer-links a:hover {
        color: #fff;
    }
    .back-to-top {
        background: transparent;
        border: none;
        color: #aaa;
        font-family: inherit;
        font-weight: 300;
        cursor: pointer;
        transition: color 0.3s ease;
    }
    .back-to-top:hover {
        color: #fff;
    }
    .footer-bottom {
        border-top: 1px solid #111;
        padding-top: 30px;
        text-align: center;
        color: #555;
        font-size: 0.85rem;
        font-weight: 300;
    }