/* ============================================
   Ralph Kuiper — Portfolio
   Clean, minimal, light — inspired by dipainhouse.com
   ============================================ */

/* --- Reset & Variables --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #ffffff;
    --bg-soft: #f7f7f5;
    --bg-muted: #f0efed;
    --text: #1a1a1a;
    --text-secondary: #6b6b6b;
    --text-muted: #999999;
    /*--accent: #1a1a1a;*/
    --black: #000000 ;
    --accent: #006ff9;
    --border: #e5e5e3;
    --border-light: #ededeb;
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --font: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

::selection {
    background: var(--text);
    color: var(--bg);
}

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

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 24px 0;
    transition: var(--transition);
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    padding: 16px 0;
}

.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display:flex;
    align-items: center;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.nav-logo img {
    width: 50px;
    height: 50px;
    margin-right: 16px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition);
}

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

.nav-cta {
    padding: 10px 24px;
    background: var(--accent);
    color: var(--bg) !important;
    border-radius: 100px;
    font-size: 0.85rem !important;
    font-weight: 600 !important;
    transition: opacity var(--transition) !important;
}

.nav-cta:hover {
    opacity: 0.8;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 101;
}

.nav-toggle span {
    width: 24px;
    height: 1.5px;
    background: var(--text);
    transition: var(--transition);
    transform-origin: center;
}

.nav-toggle.active span:first-child {
    transform: rotate(45deg) translate(2.5px, 2.5px);
}

.nav-toggle.active span:last-child {
    transform: rotate(-45deg) translate(2.5px, -2.5px);
}

/* Mobile menu */
.mobile-menu {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 99;
    background: var(--bg);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.mobile-menu.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-menu-inner {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    height: 100%;
    padding: 0 40px;
    gap: 12px;
}

.mobile-menu-inner a {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text);
    line-height: 1.3;
    transition: opacity var(--transition);
}

.mobile-menu-inner a:hover {
    opacity: 0.5;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 100px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    font-family: var(--font);
}

.btn-dark {
    background: var(--accent);
    color: var(--bg);
}

.btn-dark:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--accent);
    border: 1.5px solid var(--border);
}

.btn-ghost:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}

.btn-outline-dark {
    background: transparent;
    color: var(--accent);
    border: 1.5px solid var(--border);
}

.btn-outline-dark:hover {
    /*background: transparent;*/
    color: var(--accent);
    border: 1.5px solid var(--accent);
    transform: translateY(-1px);
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1rem;
}

/* --- Hero Section --- */
.hero {
    padding-top: 160px;
    padding-bottom: 0;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding-bottom: 64px;
}

.hero-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.035em;
    margin-bottom: 28px;
}

.hero h1 em {
    font-style: italic;
    font-weight: 800;
}

.hero-sub {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    width: 100%;
    height: 60vh;
    min-height: 400px;
    max-height: 640px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
    margin: 0 auto;
    max-width: 1280px;
    padding: 0 40px;
}

.hero-image img {
    border-radius: var(--radius-lg);
    height: 100%;
    width: 100%;
}

/* --- Marquee --- */
.marquee {
    padding: 40px 0;
    border-bottom: 1px solid var(--border-light);
    overflow: hidden;
}

.marquee-track {
    display: flex;
    align-items: center;
    gap: 32px;
    animation: marquee 25s linear infinite;
    white-space: nowrap;
    width: max-content;
}

.marquee-track span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    flex-shrink: 0;
}

.marquee-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--text-muted);
    display: inline-block;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* --- Section Common --- */
.section-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 16px;
}

.section-header {
    margin-bottom: 64px;
}

.section-header--center {
    text-align: center;
}

.section-header h2,
.about-content h2,
.contact-inner h2 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
}

/* --- Work / Projects Carousel --- */
.work {
    padding: 120px 0 120px;
}

.projects-carousel {
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    cursor: grab;
    padding-left: max(40px, calc((100vw - 1200px) / 2));
    padding-right: 40px;
}

.projects-carousel::-webkit-scrollbar {
    display: none;
}

.projects-carousel.dragging {
    cursor: grabbing;
    scroll-snap-type: none !important;
}

.projects-carousel.dragging .carousel-card {
    pointer-events: none;
}

.carousel-track {
    display: flex;
    gap: 16px;
}

.carousel-card {
    flex: 0 0 calc((min(1200px, 100vw - 80px) - 56px) / 4.5);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    transition: transform var(--transition);
}

.carousel-card:hover {
    transform: translateY(-4px);
}

.carousel-card-image {
    aspect-ratio: 9 / 16;
    width: 100%;
    overflow: hidden;
}

.carousel-card-image img {
    transition: transform var(--transition-slow);
}

.carousel-card:hover .carousel-card-image img {
    transform: scale(1.05);
}

.carousel-card-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 32px 20px 24px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, transparent 100%);
}

.carousel-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 6px;
}

.carousel-card-info h3 {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #fff;
}

/* --- About Section --- */
.about {
    padding: 120px 0;
    background: var(--bg-soft);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4 / 5;
}

.about-content h2 {
    margin-bottom: 28px;
}

.about-text {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.stat-value {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 4px;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* --- Image Break --- */
.image-break {
    width: 100%;
    height: 50vh;
    min-height: 320px;
    max-height: 500px;
    overflow: hidden;
}

/* --- Skills Section --- */
.skills {
    padding: 120px 0;
}

.skills-categories {
    max-width: 960px;
    margin: 0 auto;
}

.skills-category {
    border-top: 1px solid var(--border);
    padding: 48px 0;
}

.skills-category:last-child {
    border-bottom: 1px solid var(--border);
}

.category-header {
    display: flex;
    align-items: baseline;
    gap: 20px;
    margin-bottom: 36px;
}

.category-number {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    min-width: 28px;
}

.category-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.category-skills {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px 48px;
    padding-left: 48px;
}

.skill-item h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.skill-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* --- Contact Section --- */
.contact {
    padding: 140px 0;
    background: var(--bg-soft);
}

.contact-inner {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.contact-inner h2 {
    margin-bottom: 20px;
}

.contact-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 44px;
}

.contact-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.contact-actions .btn svg {
    transition: transform var(--transition);
}

.contact-actions .btn:hover svg {
    transform: translate(2px, -2px);
}

/* --- Footer --- */
.footer {
    padding: 48px 0;
    border-top: 1px solid var(--border-light);
}

.footer-inner {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.footer-logo {
    font-size: 1rem;
    font-weight: 700;
    display: block;
    margin-bottom: 4px;
}

.footer-role {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-right {
    text-align: right;
}

.footer-links {
    display: flex;
    gap: 28px;
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* --- Language Toggle --- */
.lang-toggle {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 8px;
    border-radius: 6px;
    transition: background var(--transition);
}

.lang-toggle:hover {
    background: var(--bg-muted);
}

.lang-separator {
    color: var(--text-muted);
    font-weight: 400;
}

.lang-option {
    color: var(--text-muted);
    transition: color var(--transition);
}

.lang-option.active {
    color: var(--accent);
}

.lang-toggle--mobile {
    margin-top: 24px;
    font-size: 1.1rem;
    padding: 8px 12px;
}

/* --- Project Modal --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.modal-container {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 860px;
    max-height: 90vh;
    background: var(--bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transform: translateY(24px) scale(0.97);
    transition: transform var(--transition-slow);
    z-index: 1;
}

.modal-overlay.active .modal-container {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 10;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: var(--accent);
    transition: background var(--transition), transform var(--transition);
}

.modal-close:hover {
    background: var(--bg);
    transform: scale(1.05);
}

.modal-scroll {
    height: 100%;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.modal-hero {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.modal-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-content {
    padding: 48px 48px 56px;
}

.modal-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.modal-title {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 16px;
}

.modal-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 40px;
}

.modal-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
}

.modal-detail-block h4 {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.modal-detail-block p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.modal-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.modal-tool-tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--bg-muted);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text);
}

body.modal-open {
    overflow: hidden;
}

/* --- Modal Gallery --- */
.modal-gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 40px;
}

.modal-gallery:empty {
    display: none;
}

.modal-gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    cursor: pointer;
    background: var(--bg-muted);
}

.modal-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0);
    transition: background 0.3s ease;
    pointer-events: none;
}

.modal-gallery-item:hover img {
    transform: scale(1.05);
}

.modal-gallery-item:hover::after {
    background: rgba(0, 0, 0, 0.08);
}

.modal-prototype-link {
    display: inline-block;
    margin-top: 30px;
    color: var(--accent);;
}

/* --- Lightbox --- */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.lightbox-overlay.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    transition: background 0.2s ease;
    z-index: 2001;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    transition: background 0.2s ease;
    z-index: 2001;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.lightbox-overlay.active .lightbox-content img {
    opacity: 1;
    transform: scale(1);
}

.lightbox-counter {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

/* --- Animations --- */
[data-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-animate="fade-in"] {
    transform: translateY(0);
    opacity: 0;
}

[data-animate].visible {
    opacity: 1;
    transform: none;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .container {
        padding: 0 32px;
    }

    .hero-image {
        padding: 0 32px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-image {
        max-height: 480px;
        aspect-ratio: 16 / 10;
    }

    .projects-carousel {
        padding-left: 32px;
        padding-right: 32px;
    }

    .carousel-card {
        flex: 0 0 calc((100vw - 64px - 40px) / 3.5);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .nav-inner {
        padding: 0 20px;
    }

    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .hero {
        padding-top: 130px;
    }

    .projects-carousel {
        padding-left: 20px;
        padding-right: 20px;
    }

    .carousel-card {
        flex: 0 0 calc((100vw - 40px - 32px) / 2.5);
    }

    .hero h1 {
        font-size: clamp(2.2rem, 8vw, 3.2rem);
    }

    .hero-sub {
        font-size: 1rem;
    }

    .hide-mobile {
        display: none;
    }

    .work, .about, .skills, .contact {
        padding: 80px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .category-skills {
        grid-template-columns: 1fr;
        gap: 24px;
        padding-left: 0;
    }

    .category-header {
        flex-direction: column;
        gap: 8px;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .mobile-menu-inner a {
        font-size: 2rem;
    }

    .modal-container {
        max-width: 100%;
        max-height: 100%;
        border-radius: 0;
        height: 100%;
    }

    .modal-content {
        padding: 32px 20px 40px;
    }

    .modal-details {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .modal-hero {
        aspect-ratio: 4 / 3;
    }

    .modal-gallery {
        grid-template-columns: 1fr;
        gap: 10px;
        margin-top: 28px;
    }

    .lightbox-nav {
        width: 40px;
        height: 40px;
    }

    .lightbox-prev {
        left: 12px;
    }

    .lightbox-next {
        right: 12px;
    }

    .contact-actions {
        flex-direction: column;
        align-items: center;
    }

    .footer-inner {
        flex-direction: column;
        gap: 28px;
    }

    .footer-right {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        justify-content: center;
    }

    .projects-carousel {
        padding-left: 20px;
        padding-right: 20px;
    }

    .carousel-card {
        flex: 0 0 calc((100vw - 40px - 24px) / 2.5);
    }
}