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

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: #000;
            font-family: 'Inter', sans-serif;
            color: #fff;
            min-height: 100vh;
            cursor: none;
        }

        /* Custom Cursor — Zwart & Wit */
        .cursor-dot {
            position: fixed;
            top: 0;
            left: 0;
            width: 8px;
            height: 8px;
            background: #fff;
            border-radius: 50%;
            pointer-events: none;
            z-index: 9999;
            transform: translate(-50%, -50%);
            transition: width 0.25s ease, height 0.25s ease, background 0.25s ease, opacity 0.3s ease;
        }

        .cursor-ring {
            position: fixed;
            top: 0;
            left: 0;
            width: 40px;
            height: 40px;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            border-radius: 50%;
            pointer-events: none;
            z-index: 9998;
            transform: translate(-50%, -50%);
            transition: width 0.3s ease, height 0.3s ease, border-color 0.3s ease, background 0.3s ease, opacity 0.3s ease;
        }

        .cursor-dot.hover {
            width: 6px;
            height: 6px;
            background: #000;
        }

        .cursor-ring.hover {
            width: 80px;
            height: 80px;
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .cursor-label {
            position: fixed;
            top: 0;
            left: 0;
            pointer-events: none;
            z-index: 9999;
            transform: translate(-50%, -50%);
            font-family: 'Inter', sans-serif;
            font-size: 10px;
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: #fff;
            opacity: 0;
            transition: opacity 0.25s ease;
            white-space: nowrap;
        }

        .cursor-label.visible {
            opacity: 1;
        }

        .cursor-dot.clicking {
            width: 5px;
            height: 5px;
        }

        .cursor-ring.clicking {
            width: 32px;
            height: 32px;
            border-color: rgba(255, 255, 255, 0.8);
        }

        .cursor-dot.hidden,
        .cursor-ring.hidden {
            opacity: 0;
        }

        /* Hide custom cursor on touch devices */
        @media (pointer: coarse) {
            .cursor-dot,
            .cursor-ring {
                display: none;
            }
            body {
                cursor: auto;
            }
        }

        /* Header */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            padding: 0 40px;
            transition: background 0.4s ease, padding 0.3s ease;
            will-change: background;
            contain: layout style;
        }

        .header.scrolled {
            background: rgba(0,0,0,0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .header-inner {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }

        .header.scrolled .header-inner {
            border-bottom-color: transparent;
        }

        .header-logo {
            font-family: 'Poppins', sans-serif;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            text-decoration: none;
            letter-spacing: -0.3px;
            text-transform: uppercase;
        }

        .header-logo span {
            font-weight: 300;
            opacity: 0.5;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 36px;
        }

        .header-nav a {
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            font-weight: 400;
            color: rgba(255,255,255,0.5);
            text-decoration: none;
            letter-spacing: 0.3px;
            transition: color 0.3s ease;
            position: relative;
        }

        .header-nav a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 1px;
            background: #fff;
            transition: width 0.3s ease;
        }

        .header-nav a:hover {
            color: #fff;
        }

        .header-nav a:hover::after {
            width: 100%;
        }

        .header-cta {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            font-weight: 500;
            color: #fff;
            background: transparent;
            text-decoration: none;
            padding: 9px 24px;
            border-radius: 50px;
            letter-spacing: 0.5px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            position: relative;
            overflow: hidden;
            transition: border-color 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), color 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .header-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: 50px;
            background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.03) 100%);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .header-cta:hover {
            border-color: rgba(255, 255, 255, 0.6);
            box-shadow: 0 0 20px rgba(255, 255, 255, 0.08), inset 0 0 20px rgba(255, 255, 255, 0.03);
            transform: translateY(-1px);
            color: #fff;
        }

        .header-cta:hover::before {
            opacity: 1;
        }

        .header-cta:hover::after {
            width: 0;
        }

        .header-cv {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0.05) 100%);
            text-decoration: none;
            padding: 9px 24px;
            border-radius: 50px;
            letter-spacing: 1px;
            text-transform: uppercase;
            border: 1px solid rgba(255,255,255,0.4);
            box-shadow: 0 0 12px rgba(255,255,255,0.06), inset 0 1px 0 rgba(255,255,255,0.1);
            transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .header-cv:hover {
            background: transparent;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 102;
            padding: 4px;
            background: none;
            border: none;
        }

        /* Footer */
        footer[role="contentinfo"] {
            background: #000;
            text-align: center;
            padding: 24px 20px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }

        footer[role="contentinfo"] p {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            color: rgba(255,255,255,0.2);
            letter-spacing: 0.3px;
        }

        .hamburger div {
            width: 24px;
            height: 1.5px;
            background: #fff;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .hamburger.active div:nth-child(1) {
            transform: translateY(6.5px) rotate(45deg);
        }

        .hamburger.active div:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active div:nth-child(3) {
            transform: translateY(-6.5px) rotate(-45deg);
        }

        /* Mobile menu */
        .mobile-menu {
            position: fixed;
            top: 0;
            right: -100%;
            width: 100%;
            height: 100vh;
            height: 100dvh;
            background: rgba(0,0,0,0.98);
            z-index: 101;
            display: flex;
            flex-direction: column;
            padding: 0 32px;
            transition: right 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
            overscroll-behavior: contain;
        }

        .mobile-menu.open {
            right: 0;
        }

        /* Close button */
        .mobile-menu-close {
            display: flex;
            align-items: center;
            gap: 12px;
            align-self: flex-end;
            padding: 28px 0;
            cursor: pointer;
            background: none;
            border: none;
        }

        .mobile-menu-close svg {
            width: 20px;
            height: 20px;
            stroke: rgba(255,255,255,0.7);
            stroke-width: 2;
        }

        .mobile-menu-close span {
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            font-weight: 500;
            color: rgba(255,255,255,0.7);
            letter-spacing: 4px;
            text-transform: uppercase;
        }

        /* Nav items */
        .mobile-nav {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            padding-top: 10px;
        }

        .mobile-nav-item {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 24px 0;
            border-top: 1px solid rgba(255,255,255,0.08);
            text-decoration: none;
            transition: opacity 0.3s ease;
        }

        .mobile-nav-item:last-child {
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .mobile-nav-num {
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            font-weight: 400;
            color: rgba(255,255,255,0.3);
            min-width: 28px;
        }

        .mobile-nav-label {
            font-family: 'Poppins', sans-serif;
            font-size: clamp(36px, 8vw, 52px);
            font-weight: 800;
            text-transform: uppercase;
            color: rgba(255,255,255,0.2);
            line-height: 1.1;
            letter-spacing: -0.5px;
            transition: color 0.3s ease;
        }

        .mobile-nav-item.active .mobile-nav-label {
            color: #fff;
        }

        .mobile-nav-item:hover .mobile-nav-label {
            color: rgba(255,255,255,0.5);
        }

        .mobile-nav-item.active:hover .mobile-nav-label {
            color: #fff;
        }

        /* Mobile CV Download Button */
        .mobile-cv-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-top: 24px;
            padding: 16px 0;
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            text-decoration: none;
            letter-spacing: 2px;
            text-transform: uppercase;
            border: 1px solid rgba(255,255,255,0.4);
            border-radius: 50px;
            background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0.04) 100%);
            transition: background 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
        }

        .mobile-cv-btn:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.6);
            transform: translateY(-1px);
        }

        .mobile-cv-btn svg {
            flex-shrink: 0;
        }

        /* Mobile menu bottom */
        .mobile-menu-bottom {
            padding: 40px 0 36px;
        }

        .mobile-socials-label {
            font-family: 'Inter', sans-serif;
            font-size: 11px;
            font-weight: 500;
            color: rgba(255,255,255,0.3);
            letter-spacing: 3px;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .mobile-socials a {
            display: block;
            font-family: 'Inter', sans-serif;
            font-size: 14px;
            font-weight: 600;
            color: rgba(255,255,255,0.45);
            text-decoration: none;
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 4px 0;
            transition: color 0.3s ease;
        }

        .mobile-socials a:hover {
            color: rgba(255,255,255,0.8);
        }

        .mobile-menu-info {
            margin-top: 28px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }

        .mobile-menu-info .info-name {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            font-weight: 500;
            color: rgba(255,255,255,0.3);
            letter-spacing: 3px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .mobile-menu-info .info-role {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            font-weight: 500;
            color: rgba(255,255,255,0.35);
            letter-spacing: 1px;
            text-transform: uppercase;
            line-height: 1.6;
        }

        .mobile-menu-info .info-credit {
            font-family: 'Inter', sans-serif;
            font-size: 10px;
            font-weight: 400;
            color: rgba(255,255,255,0.18);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-top: 16px;
        }

        /* Add top padding to body for fixed header */
        body {
            padding-top: 0;
        }

        /* Hero Section */
        .hero {
            position: relative;
            width: calc(100% - 60px);
            margin: 90px auto 0;
            height: 85vh;
            overflow: hidden;
            border-radius: 20px;
            contain: layout style paint;
        }

        .hero-image {
            position: absolute;
            top: -25%;
            left: 0;
            width: 100%;
            height: 150%;
            background-image: url('../zwart%26wit/b%26w.webp');
            background-size: cover;
            background-position: center;
            will-change: transform;
            transform: translateZ(0);
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.25);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100%;
            text-align: center;
            padding: 0 20px;
        }

        .hero-content h1 {
            font-family: 'Poppins', sans-serif;
            font-size: 72px;
            font-weight: 700;
            line-height: 1.1;
            letter-spacing: -2px;
            margin-bottom: 20px;
            color: #fff;
            text-transform: uppercase;
        }

        .hero-content p {
            font-family: 'Poppins', sans-serif;
            font-size: 16px;
            font-weight: 400;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.9);
            max-width: 460px;
            margin-bottom: 35px;
            letter-spacing: 0.3px;
        }

        .hero-content .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 40px;
            background: transparent;
            color: #fff;
            text-decoration: none;
            border-radius: 50px;
            font-family: 'Poppins', sans-serif;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            border: 1px solid rgba(255,255,255,0.5);
            box-shadow: 0 0 20px rgba(255,255,255,0.06), inset 0 1px 0 rgba(255,255,255,0.1);
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease, background 0.3s ease;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .hero-content .btn::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: 50px;
            background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.02) 100%);
            opacity: 1;
        }

        .hero-content .btn:hover {
            border-color: rgba(255,255,255,0.9);
            box-shadow: 0 0 32px rgba(255,255,255,0.15), inset 0 0 20px rgba(255,255,255,0.05);
            transform: translateY(-2px);
        }

        .scroll-indicator {
            position: absolute;
            bottom: 25px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3;
            color: #fff;
            font-size: 20px;
            animation: bounce 2s infinite;
        }

        @keyframes bounce {
            0%, 100% { transform: translateX(-50%) translateY(0); }
            50% { transform: translateX(-50%) translateY(-8px); }
        }

        /* Intro Section */
        .intro-section {
            position: relative;
            background-color: #000;
            padding: 120px 60px;
            min-height: 100vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .intro-section .circle {
            position: absolute;
            border-radius: 50%;
            background-color: #1a1a1a;
        }

        .intro-section .circle-left {
            width: 420px;
            height: 420px;
            left: -140px;
            top: 50%;
            transform: translateY(-50%);
        }

        .intro-section .circle-right {
            width: 500px;
            height: 500px;
            right: 0px;
            top: 50%;
            transform: translateY(-50%);
        }

        .intro-section .circle-right-inner {
            width: 420px;
            height: 420px;
            right: 37px;
            top: 50%;
            transform: translateY(-50%);
            background-color: #222;
            overflow: hidden;
        }

        .intro-section .circle-right-inner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center top;
            display: block;
        }

        .intro-content {
            position: relative;
            z-index: 2;
            margin-left: 80px;
        }

        .intro-content .greeting {
            font-family: 'Poppins', sans-serif;
            font-size: clamp(40px, 5vw, 64px);
            font-weight: 300;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 0;
        }

        .intro-content .name-highlight {
            display: inline-block;
            background-color: #fff;
            color: #000;
            font-family: 'Poppins', sans-serif;
            font-size: clamp(36px, 4.8vw, 60px);
            font-weight: 600;
            padding: 4px 12px;
            margin-top: 4px;
            margin-bottom: 40px;
            line-height: 1.2;
        }

        .intro-content .intro-description {
            font-family: 'Inter', sans-serif;
            font-size: 15px;
            font-weight: 400;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
        }

        /* ===== Projects Gallery ===== */
        .projects-section {
            background-color: #000;
            padding: 100px 60px;
            position: relative;
        }

        .projects-scroll-text {
            overflow: hidden;
            white-space: nowrap;
            margin-bottom: 60px;
            position: relative;
        }

        .projects-scroll-text::before,
        .projects-scroll-text::after {
            content: '';
            position: absolute;
            top: 0;
            width: 80px;
            height: 100%;
            z-index: 2;
            pointer-events: none;
        }

        .projects-scroll-text::before {
            left: 0;
            background: linear-gradient(to right, #000, transparent);
        }

        .projects-scroll-text::after {
            right: 0;
            background: linear-gradient(to left, #000, transparent);
        }

        .projects-scroll-track {
            display: inline-flex;
            will-change: transform;
        }

        .projects-scroll-track span {
            font-family: 'Poppins', sans-serif;
            font-size: clamp(48px, 6vw, 80px);
            font-weight: 700;
            color: transparent;
            -webkit-text-stroke: 1px rgba(255,255,255,0.3);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            padding: 0 30px;
            flex-shrink: 0;
        }

        .projects-scroll-track span.filled {
            color: #fff;
            -webkit-text-stroke: 0;
        }

        .projects-gallery {
            width: 100%;
            position: relative;
        }

        .project-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 32px 0;
            border-top: 1px solid rgba(255,255,255,0.1);
            cursor: pointer;
            text-decoration: none;
            position: relative;
            transition: opacity 0.3s ease;
        }

        .project-row:last-child {
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        .projects-gallery:hover .project-row {
            opacity: 0.3;
        }

        .projects-gallery:hover .project-row:hover {
            opacity: 1;
        }

        .project-row-name {
            font-family: 'Poppins', sans-serif;
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 400;
            color: #fff;
            letter-spacing: -0.5px;
            transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

        .project-row:hover .project-row-name {
            transform: translateX(16px);
        }

        .project-row-tag {
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            font-weight: 400;
            color: rgba(255,255,255,0.4);
            letter-spacing: 0.3px;
            flex-shrink: 0;
        }

        /* Floating hover image */
        .project-hover-img {
            position: fixed;
            top: 0;
            left: 0;
            width: 360px;
            height: 240px;
            border-radius: 8px;
            overflow: hidden;
            pointer-events: none;
            z-index: 50;
            opacity: 0;
            transform: translate3d(0, 0, 0) scale(0.9);
            transition: opacity 0.25s ease;
            box-shadow: 0 20px 60px rgba(0,0,0,0.5);
            will-change: transform, opacity;
            contain: layout style;
        }

        .project-hover-img.visible {
            opacity: 1;
        }

        .project-hover-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .project-hover-img .hover-view-btn {
            position: absolute;
            bottom: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(90, 90, 220, 0.9);
            color: #fff;
            font-family: 'Inter', sans-serif;
            font-size: 11px;
            font-weight: 500;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: 0.5px;
        }

        /* ===== Skills Section ===== */
        .skills-section {
            background-color: #000;
            padding: 120px 60px;
            position: relative;
            overflow: hidden;
        }

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

        .skills-header {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            margin-bottom: 80px;
        }

        .skills-title {
            font-family: 'Poppins', sans-serif;
            font-size: clamp(48px, 7vw, 88px);
            font-weight: 800;
            color: #fff;
            line-height: 1.0;
        }

        .skills-subtitle {
            font-family: 'Inter', sans-serif;
            font-size: 14px;
            font-weight: 400;
            color: rgba(255,255,255,0.35);
            letter-spacing: 0.5px;
        }

        .skills-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }

        .skills-col {
            padding-right: 60px;
        }

        .skills-col:last-child {
            padding-right: 0;
            padding-left: 60px;
            border-left: 1px solid rgba(255,255,255,0.08);
        }

        .skills-col-title {
            font-family: 'Poppins', sans-serif;
            font-size: 13px;
            font-weight: 600;
            color: rgba(255,255,255,0.4);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 40px;
        }

        .skill-bar-item {
            margin-bottom: 32px;
        }

        .skill-bar-item:last-child {
            margin-bottom: 0;
        }

        .skill-bar-header {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            margin-bottom: 12px;
        }

        .skill-bar-name {
            font-family: 'Inter', sans-serif;
            font-size: 15px;
            font-weight: 500;
            color: #fff;
        }

        .skill-bar-percent {
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            font-weight: 400;
            color: rgba(255,255,255,0.35);
        }

        .skill-bar-track {
            width: 100%;
            height: 2px;
            background: rgba(255,255,255,0.08);
            position: relative;
            overflow: hidden;
        }

        .skill-bar-fill {
            height: 100%;
            width: 0;
            background: #fff;
            transition: width 1.2s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

        .skills-tools-section {
            margin-top: 80px;
            padding-top: 80px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }

        .skills-tools-title {
            font-family: 'Poppins', sans-serif;
            font-size: 13px;
            font-weight: 600;
            color: rgba(255,255,255,0.4);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 40px;
        }

        .tools-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .tool-tag {
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            font-weight: 400;
            color: rgba(255,255,255,0.5);
            border: 1px solid rgba(255,255,255,0.12);
            padding: 10px 24px;
            border-radius: 100px;
            transition: border-color 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), color 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), background 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            cursor: default;
        }

        .tool-tag:hover {
            border-color: rgba(255,255,255,0.4);
            color: #fff;
            background: rgba(255,255,255,0.04);
        }

        /* ===== Contact Section ===== */
        .contact-section {
            background-color: #000;
            padding: 120px 60px;
            position: relative;
            overflow: hidden;
        }

        .contact-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .contact-header h2 {
            font-family: 'Poppins', sans-serif;
            font-size: clamp(40px, 7vw, 80px);
            font-weight: 800;
            color: #fff;
            line-height: 1.05;
            text-transform: uppercase;
            letter-spacing: -1px;
            margin-bottom: 30px;
        }

        .contact-header p {
            font-family: 'Inter', sans-serif;
            font-size: 14px;
            color: rgba(255,255,255,0.5);
            line-height: 1.7;
            max-width: 440px;
            margin: 0 auto;
        }

        .contact-form {
            max-width: 560px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .form-group {
            position: relative;
            border-bottom: 1px solid rgba(255,255,255,0.15);
            padding: 24px 0 12px;
        }

        .form-group label {
            display: block;
            font-family: 'Inter', sans-serif;
            font-size: 10px;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: rgba(255,255,255,0.4);
            margin-bottom: 12px;
        }

        .form-group label .required {
            color: rgba(255,255,255,0.4);
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            background: none;
            border: none;
            outline: none;
            font-family: 'Inter', sans-serif;
            font-size: 15px;
            color: #fff;
            padding: 0;
            resize: none;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: rgba(255,255,255,0.2);
        }

        .form-group textarea {
            min-height: 120px;
            border: 1px solid rgba(255,255,255,0.15);
            padding: 14px;
            margin-top: 4px;
        }

        .form-group.textarea-group {
            border-bottom: none;
        }

        .form-group .form-line {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 1px;
            background-color: #fff;
            transition: width 0.4s ease;
        }

        .form-group:focus-within .form-line {
            width: 100%;
        }

        .contact-form .submit-btn {
            align-self: center;
            margin-top: 40px;
            padding: 16px 48px;
            background: transparent;
            color: #fff;
            border: 1px solid #fff;
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            cursor: pointer;
            transition: background 0.3s ease, color 0.3s ease;
        }

        .contact-form .submit-btn:hover {
            background: #fff;
            color: #000;
        }

        .contact-footer {
            max-width: 560px;
            margin: 80px auto 0;
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .contact-footer span {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            color: rgba(255,255,255,0.25);
            letter-spacing: 0.3px;
        }

        .contact-footer .back-to-top {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            color: rgba(255,255,255,0.25);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .contact-footer .back-to-top:hover {
            color: rgba(255,255,255,0.6);
        }

        /* ===== RESPONSIVE ===== */

        /* Tablets landscape / small laptops */
        @media (max-width: 1024px) {
            .hero {
                width: calc(100% - 40px);
                height: 75vh;
            }

            .hero-content h1 {
                font-size: 56px;
            }

            .intro-section {
                padding: 100px 40px;
            }

            .intro-content {
                margin-left: 40px;
            }

            .intro-section .circle-left {
                width: 320px;
                height: 320px;
                left: -120px;
            }

            .intro-section .circle-right {
                width: 400px;
                height: 400px;
                right: -40px;
            }

            .intro-section .circle-right-inner {
                width: 340px;
                height: 340px;
                right: 0px;
            }

            .projects-section {
                padding: 80px 40px;
            }

            .project-hover-img {
                width: 300px;
                height: 200px;
            }

            .contact-section {
                padding: 100px 40px;
            }

            .skills-section {
                padding: 100px 40px;
            }

            .skills-col {
                padding-right: 40px;
            }

            .skills-col:last-child {
                padding-left: 40px;
            }
        }

        /* Tablets portrait */
        @media (max-width: 768px) {
            .header {
                padding: 0 24px;
            }

            .header-inner {
                height: 60px;
            }

            .header-nav {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .hero {
                width: calc(100% - 30px);
                height: 65vh;
                border-radius: 16px;
            }

            .hero-content h1 {
                font-size: 42px;
                margin-bottom: 16px;
            }

            .hero-content p {
                font-size: 14px;
                max-width: 340px;
                margin-bottom: 28px;
            }

            .hero-content .btn {
                padding: 12px 32px;
                font-size: 14px;
            }

            .intro-section {
                padding: 80px 30px;
                flex-direction: column;
                justify-content: flex-start;
                align-items: center;
                min-height: auto;
                gap: 40px;
                text-align: center;
            }

            .intro-content {
                margin-left: 0;
                text-align: center;
                order: 1;
            }

            .intro-content .greeting {
                font-size: clamp(32px, 7vw, 48px);
            }

            .intro-content .name-highlight {
                font-size: clamp(28px, 6vw, 44px);
                margin-bottom: 30px;
            }

            .intro-content .intro-description {
                font-size: 14px;
                max-width: 100%;
                margin: 0 auto;
            }

            .intro-section .circle.circle-right-inner,
            .intro-section .circle.circle-right {
                position: relative;
                order: 2;
                right: auto;
                top: auto;
                bottom: auto;
                left: auto;
            }

            .intro-section .circle-left {
                width: 250px;
                height: 250px;
                left: -100px;
                top: 10%;
                transform: none;
                position: absolute;
            }

            .intro-section .circle-right {
                display: none; /* Hide the decorative outer circle on mobile to simplify layout, or map it under the inner circle */
            }

            .intro-section .circle.circle-right-inner {
                width: 280px;
                height: 280px;
                margin: 0 auto;
                transform: none;
            }

            .projects-section {
                padding: 60px 30px;
            }

            .projects-scroll-text {
                margin-bottom: 40px;
            }

            .projects-scroll-track span {
                font-size: clamp(36px, 8vw, 56px);
                padding: 0 20px;
            }

            .project-row {
                padding: 24px 0;
            }

            .project-row-name {
                font-size: clamp(26px, 6vw, 40px);
            }

            .project-row-tag {
                font-size: 12px;
            }

            .project-hover-img {
                display: none;
            }

            .contact-section {
                padding: 80px 30px;
            }

            .skills-section {
                padding: 80px 30px;
            }

            .skills-header {
                flex-direction: column;
                gap: 12px;
                margin-bottom: 60px;
            }

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

            .skills-col {
                padding-right: 0;
            }

            .skills-col:last-child {
                padding-left: 0;
                border-left: none;
                margin-top: 50px;
                padding-top: 50px;
                border-top: 1px solid rgba(255,255,255,0.08);
            }

            .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }

            .contact-footer {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }

        /* Mobile phones */
        @media (max-width: 480px) {
            .header {
                padding: 0 16px;
            }

            .header-logo {
                font-size: 14px;
            }

            .navbar {
                padding: 14px 0;
            }

            .navbar span {
                font-size: 12px;
            }

            .hero {
                width: calc(100% - 20px);
                height: 55vh;
                border-radius: 12px;
            }

            .hero-image {
                background-attachment: scroll;
            }

            .hero-content h1 {
                font-size: 32px;
                letter-spacing: -0.5px;
                margin-bottom: 12px;
            }

            .hero-content p {
                font-size: 13px;
                max-width: 280px;
                margin-bottom: 24px;
            }

            .hero-content .btn {
                padding: 11px 28px;
                font-size: 13px;
            }

            .scroll-indicator {
                font-size: 16px;
                bottom: 16px;
            }

            .intro-section {
                padding: 60px 20px;
                gap: 30px;
            }

            .intro-content .greeting {
                font-size: clamp(26px, 8vw, 38px);
            }

            .intro-content .name-highlight {
                font-size: clamp(22px, 6.5vw, 34px);
                padding: 3px 8px;
                margin-bottom: 24px;
            }

            .intro-content .intro-description {
                font-size: 13px;
                line-height: 1.6;
            }

            .intro-section .circle-left {
                width: 180px;
                height: 180px;
                left: -80px;
                top: 5%;
            }

            .intro-section .circle.circle-right-inner {
                width: 220px;
                height: 220px;
            }

            .projects-section {
                padding: 50px 20px;
            }

            .projects-scroll-text {
                margin-bottom: 30px;
            }

            .projects-scroll-track span {
                font-size: 32px;
                padding: 0 14px;
            }

            .project-row {
                padding: 20px 0;
            }

            .project-row-name {
                font-size: clamp(22px, 7vw, 32px);
            }

            .project-row-tag {
                font-size: 11px;
            }

            .contact-section {
                padding: 60px 20px;
            }

            .skills-section {
                padding: 50px 20px;
            }

            .skills-title {
                font-size: clamp(36px, 10vw, 56px);
            }

            .skills-tools-section {
                margin-top: 50px;
                padding-top: 50px;
            }

            .contact-header h2 {
                font-size: 32px;
            }

            .contact-form .submit-btn {
                width: 100%;
                text-align: center;
            }
        }

        /* Very small phones */
        @media (max-width: 360px) {
            .hero {
                height: 50vh;
            }

            .hero-content h1 {
                font-size: 26px;
            }

            .intro-content .greeting {
                font-size: 24px;
            }

            .intro-content .name-highlight {
                font-size: 20px;
            }

            .intro-content .intro-description {
                font-size: 12px;
            }
        }

        /* ===== Loading Screen ===== */
        .loader {
            position: fixed;
            inset: 0;
            z-index: 9999;
            background: #000;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            transition: opacity 0.6s cubic-bezier(0.65, 0, 0.35, 1),
                        visibility 0.6s cubic-bezier(0.65, 0, 0.35, 1);
        }

        .loader.hidden {
            opacity: 0;
            visibility: hidden;
        }

        .loader-name {
            display: flex;
            gap: 0;
            overflow: hidden;
        }

        .loader-name .letter {
            font-family: 'Poppins', sans-serif;
            font-size: clamp(42px, 8vw, 80px);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: -2px;
            color: #fff;
            opacity: 0;
            transform: translateY(100%);
            animation: letterUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
        }

        .loader-name .letter:nth-child(1) { animation-delay: 0.15s; }
        .loader-name .letter:nth-child(2) { animation-delay: 0.22s; }
        .loader-name .letter:nth-child(3) { animation-delay: 0.29s; }
        .loader-name .letter:nth-child(4) { animation-delay: 0.36s; }

        @keyframes letterUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .loader-sub {
            font-family: 'Inter', sans-serif;
            font-size: clamp(11px, 1.5vw, 14px);
            font-weight: 400;
            letter-spacing: 6px;
            text-transform: uppercase;
            color: rgba(255, 255, 255, 0.35);
            margin-top: 14px;
            opacity: 0;
            animation: fadeIn 0.8s ease 0.6s forwards;
        }

        @keyframes fadeIn {
            to { opacity: 1; }
        }

        .loader-line {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
            animation: lineGrow 1.8s cubic-bezier(0.65, 0, 0.35, 1) 0.4s forwards;
        }

        @keyframes lineGrow {
            to { width: 100%; }
        }

        /* Prevent scroll during loading */
        body.loading {
            overflow: hidden;
        }

        /* Mobile performance */
        @media (max-width: 768px) {
            .header.scrolled {
                backdrop-filter: none;
                -webkit-backdrop-filter: none;
                background: rgba(0,0,0,0.95);
            }

            .hero-image {
                will-change: auto;
                height: 100%;
                top: 0;
            }

            .projects-scroll-track {
                will-change: auto;
            }

            .project-hover-img {
                will-change: auto;
            }
        }

        /* Touch device optimisations */
        @media (pointer: coarse) {
            .header-cta,
            .hamburger,
            .mobile-nav-item,
            .mobile-menu-close,
            .submit-btn,
            .btn,
            .back-to-top,
            .project-row {
                touch-action: manipulation;
            }

            .cursor-label {
                display: none;
            }
        }

        /* Logo meer naar links op grote schermen */
        @media (min-width: 1400px) {
            .header-inner {
                max-width: 100%;
                margin-left: 0;
                margin-right: 0;
            }
        }

        /* Reduced motion */
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }

            .hero-image {
                will-change: auto;
            }

            .scroll-indicator {
                animation: none;
            }

            .loader {
                display: none;
            }

            body.loading {
                overflow: auto;
            }
        }