:root {
    --color-bg: hsl(232 79% 10% / 1);
    --color-text: #fff;
    --color-accent: #c4a47c;
    --color-accent-light: #d8bc96;
    --color-accent-dark: #a3835a;
    --font-main: 'Space Grotesk', sans-serif;
    --spacing-unit: 1rem;
    --accent-gradient: linear-gradient(135deg, var(--color-accent-light), var(--color-accent), var(--color-accent-dark));
}

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

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.6;
    cursor: none;
}

/* Custom Cursor */
.cursor {
    width: 40px;
    height: 40px;
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                height 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                background-color 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: width, height, left, top;
}

.cursor.hover {
    width: 80px;
    height: 80px;
    border-color: var(--color-text);
    border-width: 1px;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
}

.cursor::before,
.cursor::after {
    content: '';
    position: absolute;
    background: var(--color-accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.cursor::before {
    width: 2px;
    height: 20px;
}

.cursor::after {
    width: 20px;
    height: 2px;
}

.cursor.hover::before,
.cursor.hover::after {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0);
}

.cursor-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #ffffff;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    white-space: nowrap;
    mix-blend-mode: normal;
    width: 100%;
    text-align: center;
}

.cursor.hover .cursor-text {
    opacity: 1;
    color: #ffffff;
}

.cursor.view-cursor {
    width: 80px;
    height: 80px;
    transform: translate(-50%, -50%) scale(1);
}

.cursor.nav-cursor {
    width: 60px;
    height: 60px;
    transform: translate(-50%, -50%) scale(1);
}

.cursor.link-cursor {
    width: 50px;
    height: 50px;
    transform: translate(-50%, -50%) scale(1);
}

/* Hide default cursor on all interactive elements */
*, 
*::before, 
*::after {
    cursor: none !important;
}

/* Ensure interactive elements remain clickable */
a, button, .slide, .modal-close, .scroll-down, .slider-nav button, .fullscreen-toggle {
    pointer-events: auto;
    position: relative;
    z-index: 1;
}

/* Ensure no cursor on non-interactive elements */
body, .hero, .slider-container, .modal {
    cursor: none;
}

/* Magnetic elements */
.magnetic-element {
    transform: translate(0, 0);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1;
}

/* Header Styles */
.header {
    position: fixed;
    top: 2rem;
    left: 2rem;
    width: calc(100% - 4rem);
    padding: calc(var(--spacing-unit)* 0.25) var(--spacing-unit);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    /* background: linear-gradient(
        90deg,
        rgba(3, 6, 25, 0.8) 0%,
        rgba(3, 6, 25, 0.2) 20%,
        rgba(3, 6, 25, 0.2) 80%,
        rgba(3, 6, 25, 0.8) 100%
    );
    */
    backdrop-filter: blur(10px);
    right: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.logo {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    position: relative;
    display: inline-block;
    white-space: nowrap; /* Ensure the logo stays on one line */
}

.logo .char {
    display: inline-block;
    transition: opacity 0.5s ease, transform 0.5s ease, color 0.5s ease;
    backface-visibility: hidden; /* Prevent rendering issues */
    will-change: transform, opacity; /* Optimize for animation */
}

/* The studio part container - this stays fixed */
.logo .studio {
    display: inline-block;
}

/* The changing part that alternates between BRAINPORT and STEEF */
.logo .changing-part {
    display: inline-block;
}

/* Special styling for STEEF */
.logo .changing-part[data-word="STEEF"] .char {
    color: var(--color-accent);
}

nav ul {
    display: flex;
    gap: 1rem;
    list-style: none;
    align-items: center;
}

nav a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 1rem;
    position: relative;
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
}

.nav-arrow {
    width: 16px;
    height: 16px;
    margin-left: 5px;
    transform: rotate(90deg);
    transition: transform 0.3s ease;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    overflow: hidden;
    transform-style: preserve-3d;
    perspective: 1000px;
    will-change: transform;
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .hero {
        margin-bottom: 3rem;
    }
}

/* Add corner vignette for pagination visibility */
.hero-images::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        circle at top right,
        rgba(255,255,255,0.5) 0%,
        rgba(255,255,255,0.2) 20%,
        transparent 50%
    );
    pointer-events: none;
    z-index: 3;
}

/* Add dark gradient in bottom left corner */
.hero-images::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at bottom left, #030619 0%, rgba(3, 6, 25, 0.85) 20%, rgba(3, 6, 25, 0.5) 40%, rgba(3, 6, 25, 0.15) 45%, transparent 55%);
    pointer-events: none;
    z-index: 3;
}

.hero-images {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    will-change: transform;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    will-change: transform, opacity;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: brightness(0.8);
    transition: filter 0.3s ease;
    will-change: filter;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

/* Particles container */
#particles-js {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    will-change: transform;
}

/* Kubussen animatie container */
#cubes-animation {
    position: absolute;
    bottom: -12rem;
    left: -45rem;
    width: 100%;
    height: 100%;
    z-index: 0; 
    opacity: 0.5;
    pointer-events: none;
    overflow: visible;
    will-change: transform;
}

@media (max-width: 768px) {
    #cubes-animation {
        position: absolute;
        bottom: -20rem;
        left: 0rem;
        width: 100%;
        height: 600px;
        z-index: 0; 
        opacity: 0.5;
        pointer-events: none;
        overflow: visible;
        will-change: transform;
    }
}

#cubes-animation canvas {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    transform-origin: bottom left;
}

/* Compass animation container */
.compass-animation {
    position: absolute;
    top: -12rem;
    right: -13rem;
    width: 55%;
    height: 55%;
    z-index: 0;
    opacity: 0.5;
    pointer-events: none;
    overflow: visible;
    will-change: transform;
}

.compass-animation canvas {
    position: absolute;
    width: 100%;
    height: 100%;
}

/* Verberg cursor op touchscreens */
@media (hover: none) and (pointer: coarse) {
    .cursor {
        display: none !important;
    }
}

/* WebGL spotlight */
.webgl-spotlight {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    pointer-events: none;
}

/* Hero tekst links uitlijnen */
.hero-text {
    position: relative;
    z-index: 4;
    max-width: 70%;
    padding-left: calc(var(--spacing-unit) * 6);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    will-change: transform;
}

.hero-text p {
    width: fit-content;
}

.hero h2 {
    font-size: clamp(2.5rem, 6vw, 7rem);
    line-height: 1;
    font-weight: 500;
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.5),
        0 4px 12px rgba(0, 0, 0, 0.3),
        0 8px 20px rgba(0, 0, 0, 0.2);
}

.hero p {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    animation-delay: 1.2s;
    will-change: opacity, transform;
    max-width: 40ch;
    line-height: 1.7;
}

.hero p span {
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
    color: var(--color-text);
    display: inline-block;
    margin-bottom: 0.5rem;
    background:var(--color-accent-dark);
    padding: 0.3rem 0.8rem;
}

.hero h2 .reveal-char {
    display: inline-block;
    opacity: 0;
    transform: translateY(40px);
    animation: revealChar 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

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

@keyframes fadeInUp {
    to {
        opacity: 0.8;
        transform: translateY(0);
    }
}

/* Scroll container with text */
.scroll-container {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) !important; /* Force centering and prevent JS interference */
    display: flex;
    align-items: center;
    justify-content: space-between; /* Ensure proper spacing between elements */
    z-index: 10;
    width: 260px; /* Set a fixed width for consistent spacing */
    cursor: pointer;
    background-color: rgba(0, 0, 0, 0.2); /* Subtle background for better visibility */
    backdrop-filter: blur(2px);
    padding: 8px 15px;
    border-radius: 30px;
}

.scroll-action {
    background: transparent;
    border: 1px solid var(--color-accent);
    color: var(--color-text);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: background-color 0.3s ease, transform 0.3s ease;
    z-index: 3;
    margin: 0 10px; /* Increased spacing for better text separation */
    transform: none !important; /* Prevent JavaScript from moving this element */
}

.scroll-text {
    color: var(--color-text);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    position: relative;
    z-index: 2;
    white-space: nowrap; /* Prevent wrapping */
    opacity: 0.8; /* Make text a bit more visible */
    padding: 0 5px; /* Add padding around text */
    text-shadow: 0 0 2px rgba(0, 0, 0, 0.5); /* Add text shadow for better visibility */
    pointer-events: none; /* Ensure clicks pass through to container */
    flex: 1; /* Allow text elements to take equal space */
    text-align: center; /* Center text in its container */
}

.scroll-left {
    text-align: right; /* Align text toward the button */
    padding-right: 10px; /* Add padding between text and button */
    flex: none; /* Don't flex this element */
    width: 80px; /* Fixed width */
}

.scroll-right {
    text-align: left; /* Align text toward the button */
    padding-left: 10px; /* Add padding between text and button */
    flex: none; /* Don't flex this element */
    width: 80px; /* Fixed width */
}

/* Ensure the button's hover doesn't affect positioning */
.scroll-action:hover {
    background-color: var(--color-accent-transparent);
    transform: none !important; /* Prevent movement on hover */
}

.scroll-action:hover svg {
    animation: bounce 1s ease infinite;
}

/* Scroll-down button met gradiënt op hover */
.scroll-down {
    /* Remove absolute positioning to work with flexbox */
    position: static;
    z-index: 10;
    background: rgba(12, 12, 12, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: var(--color-text);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: border-color 0.3s ease, background 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    animation: bounce 2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    overflow: hidden; /* Voor gradiënt overlay */
    transform: none !important; /* Prevent JavaScript from moving this element */
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-5px);
    }
    60% {
        transform: translateY(-3px);
    }
}

.scroll-down:hover {
    border-color: var(--color-accent-light);
    animation: none; /* Stop de bounce animatie bij hover */
}

.scroll-down:hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--accent-gradient);
    opacity: 0.9;
    z-index: -1;
}

.scroll-down svg {
    width: 24px;
    height: 24px;
    position: relative;
    z-index: 2;
    rotate: 90deg;
    transition: transform 0.3s ease;
}

/* Slider Styles */
.slider-container {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: calc(var(--spacing-unit) * 4) var(--spacing-unit) var(--spacing-unit);
    touch-action: pan-y pinch-zoom;
    perspective: 800px;
    perspective-origin: 50% 50%;
    transform-style: preserve-3d;
}

@media (max-width: 768px) {
    .slider-container {
        min-height: 300px;
        padding: calc(var(--spacing-unit) * 0) var(--spacing-unit) var(--spacing-unit);
    }
    .compass-animation {
        top: -65rem;
        right: -6rem;
        width: 100%;
        height: 100%;
    }
}

/* Paper texture canvas */
#paper-texture {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.2;
    mix-blend-mode: lighten;
    pointer-events: none;
    z-index: 0;
}

.slider-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    z-index: 100;
}

.progress-bar {
    height: 100%;
    background: var(--color-accent);
    width: 0;
    transition: width 0.1s linear;
}

.slider {
    height: auto;
    position: relative;
    width: 70vw;
    max-width: 1200px;
    margin: 0 auto;
    aspect-ratio: 5.65/2;
    perspective: 1000px;
    perspective-origin: center center;
    transform-style: preserve-3d;
    overflow: visible;
}

.slide-track {
    display: flex;
    position: absolute;
    top: 0;
    left: 0;
    transform: translateX(0);
    height: 100%;
    width: max-content;
    gap: var(--spacing-unit);
    transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
    transform-style: preserve-3d;
}

.slide-track.dragging {
    transition: none;
}

.slide-track.elastic {
    transition: transform 0.5s cubic-bezier(0.19, 1, 0.22, 1);
}

.slide-track.elastic .slide:hover {
    /* Deze stijlen worden nu via JavaScript beheerd */
    z-index: 50 !important; /* Zorg dat de hover slide altijd bovenop zit */
}

.slide {
    counter-increment: slide-counter;
    position: relative;
    width: 70vw;
    max-width: 1200px;
    height: 100%;
    overflow: hidden;
    margin-right: 0;
    padding: 0;
    cursor: grab;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform, box-shadow;
    z-index: 1;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transform: translateZ(0);
    transform-style: preserve-3d;
    transform-origin: center center;
}

.slide:hover {
    z-index: 10;
    /* De box-shadow en transform worden nu via JavaScript beheerd */
}

/* Add slide number indicator */
.slide::after {
    content: '';
    position: absolute;
    top: -14px;  /* Extend slightly beyond the edges */
    left: -14px;
    width: calc(100% + 28px);  /* Width plus the extension on both sides */
    height: calc(100% + 28px);  /* Height plus the extension on both sides */
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.7) 100%);
    opacity: 0;
    z-index: 1;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), background 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center center;
}

.slide:hover::after {
    opacity: 1;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.85) 100%);
    transform: scale(1.05); /* Match the scale applied to the ::before element to ensure it covers the entire slide */
}

/* Aanpassing voor betere diepte en om overlap te voorkomen */
.slide-track .slide:not(:hover) {
    z-index: 1; /* Niet-hover slides een lagere z-index geven */
}

.slide:active {
    cursor: grabbing;
}

.slide:last-child {
    margin-right: 0;
}

/* Slide number indicator that appears on hover */
.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: var(--slide-image);
    background-size: cover;
    background-position: center;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), filter 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
    z-index: 0;
    transform: scale(1);
    transform-origin: center;
    filter: brightness(0.9) contrast(1.1);
}

/* Refined Large slide number indicator */
.slide-number {
    position: absolute;
    top: .8rem;
    left: 1.5rem;
    font-size: 8rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.65);
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 13;
    pointer-events: none;
    text-shadow: 0 0 20px rgba(0, 0, 0, 0.15);
    font-family: var(--font-main);
    line-height: 1;
    letter-spacing: -0.02em;
}

.slide:hover .slide-number {
    opacity: 1;
    transform: translateX(0);
}

/* Adjust slide content z-index to be above the number */
.slide-content {
    position: absolute;
    bottom: var(--spacing-unit);
    left: var(--spacing-unit);
    z-index: 4; /* Make sure content is above the slide number */
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    pointer-events: none;
    padding: 1rem;
    width: calc(100% - var(--spacing-unit) * 2);
}

.slide h3 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.slide p {
    font-size: 1rem;
    opacity: 0.8;
}

.slider-nav {
    position: fixed;
    bottom: calc(var(--spacing-unit) * 2);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.slider-nav.visible {
    opacity: 1;
    visibility: visible;
}

.slider-nav button {
    background: rgba(3, 6, 25, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--color-text);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
    position: relative;
    overflow: hidden; /* Voor gradiënt overlay */
}

.slider-nav button svg {
    width: 24px;
    height: 24px;
    z-index: 1; /* Boven de gradiënt overlay */
}

.slider-nav button:hover {
    border-color: var(--color-accent-light);
}

.slider-nav button:hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--accent-gradient);
    opacity: 0.9;
    z-index: 0;
}

/* Responsive Design */
@media (max-width: 1400px) {
    .slider, .slide {
        width: 80vw;
        aspect-ratio: 5.65/2;
    }
}

@media (max-width: 1024px) {
    .slide h3 {
        font-size: clamp(1.5rem, 3vw, 2.5rem);
    }

    .slide p {
        font-size: clamp(0.875rem, 1.5vw, 1rem);
    }

    .hero h2 {
        font-size: clamp(2rem, 4vw, 3.5rem);
    }

    .hero p {
        font-size: clamp(0.875rem, 1.2vw, 1rem);
    }
}

@media (max-width: 768px) {
    .header {
        padding: calc(var(--spacing-unit) * 0.75);
    }

    nav {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: rgba(3, 6, 25, 0.6);
        backdrop-filter: blur(10px);
        padding: 0 1rem;
        display: flex;
        justify-content: center;
        transform: translateY(100%);
        transition: transform 0.3s ease;
    }

    nav.active {
        transform: translateY(0);
    }

    nav ul {
        display: flex;
        gap: 1.5rem;
        justify-content: space-between;
        width: 100%;
        max-width: 500px;
    }

    nav ul li:last-child {
        display: none;
    }

    nav a, .fullscreen-toggle {
        font-size: 1.1rem;
        padding: 0.75rem;
    }
    
    .hero-text {
        padding-left: var(--spacing-unit);
        max-width: 100%;
    }
    
    .hero h2 {
        font-size: clamp(2rem, 5vw, 3.5rem);
    }

    .hero h2 .reveal-char {
        font-size: 3.5rem;
    }
    
    .slide-content {
        left: var(--spacing-unit);
        bottom: calc(var(--spacing-unit) * 2);
    }
    
    .slider-nav {
        bottom: var(--spacing-unit);
        left: 50%;
        transform: translateX(-50%);
    }
    
    .slider, .slide {
        width: 90vw;
        aspect-ratio: 5.65/2;
    }

    .nav-toggle {
        display: block;
    }

    .scroll-container {
        bottom: 6rem; /* Move slightly higher on mobile */
        width: 240px; /* Slightly narrower on mobile */
    }
    
    .scroll-text {
        font-size: 0.8rem; /* Slightly smaller text on mobile */
    }
    
    .scroll-left, .scroll-right {
        width: 70px; /* Fixed width for mobile */
    }
    
    .scroll-action {
        width: 42px;
        height: 42px;
    }

    .case-study-section {
        padding: 80px 5%;
    }
    
    .case-study-info {
        max-width: 100%;
        padding: 20px 25px;
    }
    
    .case-study-info p {
        max-width: 100%;
    }
    
    .letter-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .letter-title {
        max-width: 100%;
        font-size: 1.8rem;
    }
    
    .letter-content-wrapper {
        padding: 35px 25px;
    }
    
    .letter-content {
        font-size: 1rem;
    }
    
    .letter-highlight {
        font-size: 1.25rem;
        padding-left: 12px;
    }
    
    .letter-content li {
        padding-left: 1.2em;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Splitting.js Text Animation Styles */
.splitting .char {
    animation: slide-in 0.6s cubic-bezier(0.4, 0, 0.2, 1) both;
    animation-delay: calc(60ms * var(--char-index));
}

@keyframes slide-in {
    0% {
        opacity: 0;
        transform: translateY(40px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(3, 6, 25, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    position: relative;
    width: 90vw;
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-info {
    position: absolute;
    top: 50%;
    left: 2rem;
    width: 20%;
    min-width: 300px;
    background: var(--accent-gradient);
    padding: 2rem;
    transform-origin: left center;
    transform: translateY(-100%) scale(1);
    opacity: 0;
    z-index: 2;
    backdrop-filter: blur(4px);
    transition: none;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.modal-info h3 {
    font-size: clamp(1.5rem, 2vw, 2rem);
    margin-bottom: 1rem;
    color: var(--color-bg);
    opacity: 0;
    line-height: 1.1;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.1);
}

.modal-info p {
    font-size: clamp(1rem, 1.2vw, 1.2rem);
    line-height: 1.6;
    color: var(--color-bg);
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.5s ease 0.1s, transform 0.5s ease 0.1s;
    font-weight: 300;
}

.modal.active .modal-info h3,
.modal.active .modal-info p {
    opacity: 0.9;
    transform: translateY(0);
}

.modal-image-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    cursor: pointer;
}

.modal-image-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
    cursor: pointer;
    z-index: 10;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 45px;
    right: 45px;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--color-accent);
    color: var(--color-bg);
    font-size: 24px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 3;
}

.modal-close:hover {
    transform: scale(1.1);
    background: var(--color-text);
}

@media (max-width: 768px) {
    .modal-info {
        width: calc(100% - 4rem);
        min-width: auto;
        top: 1rem;
        left: 2rem;
    }
}

/* Preloader Styles */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.preloader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Navigation Toggle Button */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    padding: 0;
    width: 30px;
    height: 30px;
    position: relative;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-text);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Fullscreen-toggle met gradiënt op hover */
.fullscreen-toggle {
    background: rgba(12, 12, 12, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--color-text);
    opacity: 0.8;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 35px;
    height: 35px;
    position: relative;
    overflow: hidden; /* Voor gradiënt overlay */
}

.fullscreen-toggle:hover {
    opacity: 1;
    border-color: var(--color-accent-light);
}

.fullscreen-toggle:hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--accent-gradient);
    opacity: 0.9;
    z-index: -1;
}

.fullscreen-toggle svg {
    width: 20px;
    height: 20px;
}

/* Background Numbers */
.background-numbers {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    gap: 0.5rem;
    z-index: 10;
    opacity: 0;
    transform: translateX(100px);
    transition: opacity 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
                transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    pointer-events: auto;
    will-change: opacity, transform;
}

/* Specifieke stijl voor hero nummers */
.hero-numbers {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
    position: absolute; /* Behoud absolute positioning */
    z-index: 11; /* Iets hogere z-index */
}

.background-numbers.visible {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}

.background-numbers.exit {
    opacity: 0;
    transform: translateX(100px);
    transition: opacity 0.7s cubic-bezier(0.55, 0.055, 0.675, 0.19), 
                transform 0.7s cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

/* Specifieke stijl voor slider nummers */
.slider-numbers {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    gap: 0.5rem;
    z-index: 10;
    opacity: 0;
    transform: translateX(100px);
    transition: opacity 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
                transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    pointer-events: auto;
    will-change: opacity, transform;
}

@media (max-width: 768px) {
    .slider-numbers {
        top: 2rem;
    }
}

.bg-number {
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text);
    margin-right: 8px;
    cursor: pointer;
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    will-change: opacity, transform, background, border-color, box-shadow;
}

/* Zorg dat hero-nummers direct zichtbaar zijn zonder animatie */
.hero-numbers .bg-number {
    opacity: 1;
    transform: translateX(0);
}

.background-numbers.visible .bg-number {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
                transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                background 0.3s ease,
                box-shadow 0.3s ease;
}

.background-numbers.exit .bg-number {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.4s cubic-bezier(0.55, 0.055, 0.675, 0.19), 
                transform 0.4s cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

/* De nummers 1 voor 1 laten verschijnen (alleen voor slider nummers) */
.slider-numbers.visible .bg-number:nth-child(1) {
    transition-delay: 0.05s;
}
.slider-numbers.visible .bg-number:nth-child(2) {
    transition-delay: 0.1s;
}
.slider-numbers.visible .bg-number:nth-child(3) {
    transition-delay: 0.15s;
}
.slider-numbers.visible .bg-number:nth-child(4) {
    transition-delay: 0.2s;
}
.slider-numbers.visible .bg-number:nth-child(5) {
    transition-delay: 0.25s;
}
.slider-numbers.visible .bg-number:nth-child(6) {
    transition-delay: 0.3s;
}
.slider-numbers.visible .bg-number:nth-child(7) {
    transition-delay: 0.35s;
}
.slider-numbers.visible .bg-number:nth-child(8) {
    transition-delay: 0.4s;
}

/* En ook weer één voor één laten verdwijnen bij exit (alleen voor slider nummers) */
.slider-numbers.exit .bg-number:nth-child(1) {
    transition-delay: 0.35s;
}
.slider-numbers.exit .bg-number:nth-child(2) {
    transition-delay: 0.3s;
}
.slider-numbers.exit .bg-number:nth-child(3) {
    transition-delay: 0.25s;
}
.slider-numbers.exit .bg-number:nth-child(4) {
    transition-delay: 0.2s;
}
.slider-numbers.exit .bg-number:nth-child(5) {
    transition-delay: 0.15s;
}
.slider-numbers.exit .bg-number:nth-child(6) {
    transition-delay: 0.1s;
}
.slider-numbers.exit .bg-number:nth-child(7) {
    transition-delay: 0.05s;
}
.slider-numbers.exit .bg-number:nth-child(8) {
    transition-delay: 0s;
}

/* Video in modal */
.modal-video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 10;
    position: relative;
    cursor: default;
}

.video-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50px;
    padding: 10px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 20;
}

.modal-image-container:hover .video-controls {
    opacity: 1;
}

.video-play {
    background: none;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.video-play:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

.video-play svg {
    width: 24px;
    height: 24px;
    fill: white;
}

/* Make modal image container not use pointer cursor for videos */
.modal-image-container.has-video {
    cursor: default;
}

.modal-image-container.has-video img {
    cursor: default;
}

/* Voeg klasse toe voor modal open */
body.modal-open {
    overflow: hidden;
}

/* Gradiënt overlay toepassen op interactieve elementen op hover */
.slider-nav button:hover,
.fullscreen-toggle:hover,
.scroll-down:hover {
    background: var(--accent-gradient);
    border-color: var(--color-accent-light);
}

/* Hover en active stijlen */
.bg-number:hover {
    opacity: 1;
    background: rgba(196, 164, 124, 0.4);
    border-color: rgba(255, 255, 255, 0.25);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.25);
    transform: scale(1.05);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Focus state voor toetsenbordnavigatie */
.bg-number:focus {
    opacity: 1;
    background: rgba(196, 164, 124, 0.4);
    border-color: rgba(255, 255, 255, 0.25);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.25);
    transform: scale(1.05);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.bg-number.active {
    background: var(--color-accent);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Add enhanced hover effect for active state */
.bg-number.active:hover {
    background: var(--color-accent-light);
    box-shadow: 0 0 20px rgba(196, 164, 124, 0.4);
    transform: scale(1.08);
}

/* Add Radial Blur Effect */
.radial-blur {
    position: fixed;
    bottom: -35vh;
    left: -35vh;
    width: 80vh;
    height: 80vh;
    background: radial-gradient(circle, rgba(196, 164, 124, 0.2) 0%, rgba(196, 164, 124, 0.08) 40%, rgba(196, 164, 124, 0) 70%);
    filter: blur(50px);
    z-index: 1; /* Ensure it's behind the cube animation */
    pointer-events: none; /* Make sure it doesn't interfere with interactions */
    mix-blend-mode: screen; /* Blend with the background for a softer effect */
}

.slide:hover::before {
    transform: scale(1.05);
}

.slide:hover::after {
    opacity: 1;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.85) 100%);
    transform: scale(1.05); /* Match the scale applied to the ::before element to ensure it covers the entire slide */
}

.slide:hover .slide-content {
    opacity: 1;
    transform: translateY(0);
}

.scroll-action:hover svg {
    animation: bounce 1s ease infinite;
}

/* Removed duplicate bounce keyframes */

/* Case Study Section */
.case-study-section {
    padding: 120px 5%;
    background-color: var(--background-color);
    position: relative;
    overflow: hidden;
}

.case-study-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: .06rem;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

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

.case-study-header {
    margin-bottom: 60px;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.case-study-header.in-view {
    opacity: 1;
    transform: translateY(0);
}

.case-study-title {
    font-size: 3rem;
    margin-bottom: 15px;
    color: var(--text-color);
    font-weight: 600;
}

.case-study-subtitle {
    font-size: 1.2rem;
    color: var(--text-color-secondary);
    font-weight: 300;
}

.case-study-card {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.case-study-info {
    margin-bottom: 40px;
    position: relative;
    padding: 25px 40px;
    border-radius: 10px;
    transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.8s;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    max-width: 85%;
}

.case-study-info h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--text-color);
    font-weight: 500;
    opacity: 0.9;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.case-study-info p {
    color: var(--text-color-secondary);
    margin-bottom: 0;
    line-height: 1.5;
    max-width: 85%;
    opacity: 0.75;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease;
    font-size: 1.05rem;
}

/* Letter Content Styles - Verbeterde typografie */
.letter-content-wrapper {
    position: relative;
    background-color: rgba(25, 25, 30, 0.2);
    padding: 50px 60px;
    border-radius: 10px;
    margin-bottom: 60px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    opacity: 1 !important; /* Force opacity to be 1 */
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.letter-header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.letter-title {
    font-size: 2.2rem;
    color: var(--text-color);
    font-weight: 700;
    margin: 0;
    max-width: 100%;
    line-height: 1.3;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* Verbeterde typografie voor letter-content */
.letter-content {
    color: var(--text-color-secondary);
    line-height: 1.8;
    font-size: 1.1rem;
}

.letter-content p {
    margin-bottom: 2em; /* Meer witruimte tussen paragrafen */
    opacity: 0.9 !important;
    transform: translateY(0) !important;
}

.letter-content ul {
    margin: 2em 0 2.5em 0; /* Meer witruimte rond lijsten */
    padding-left: 1.5em;
}

.letter-content li {
    margin-bottom: 1em; /* Meer witruimte tussen lijstitems */
    position: relative;
    padding-left: 1.5em;
    opacity: 0.9 !important;
    transform: translateY(0) !important;
}

.letter-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.7em;
    width: 6px;
    height: 6px;
    background-color: var(--accent-color);
    border-radius: 50%;
}

/* Verbeterde opmaak voor highlights */
.letter-highlight {
    color: var(--accent-color);
    font-weight: 700;
    font-size: 1.4rem;
    margin: 2.5em 0 1em 0; /* Extra witruimte voor en na de highlight */
    letter-spacing: 0.5px;
    display: block;
    border-left: 3px solid var(--accent-color);
    padding-left: 15px;
    line-height: 1.4;
}

.letter-signature {
    margin-top: 3em; /* Extra witruimte voor de handtekening */
    font-weight: 500;
    font-style: italic;
    padding-top: 1.5em;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Style for the letter-open-btn link */
.letter-open-btn {
    background: transparent;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    transition: color 0.3s ease, transform 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 50%;
    text-decoration: none;
}

.letter-open-btn:hover {
    color: var(--accent-color);
    transform: scale(1.1);
}

/* Responsive Styles for Case Study Section */
@media (max-width: 768px) {
    .case-study-section {
        padding: 80px 5%;
    }
    
    .case-study-info {
        max-width: 100%;
        padding: 20px 25px;
    }
    
    .case-study-info p {
        max-width: 100%;
    }
    
    .letter-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .letter-title {
        max-width: 100%;
        font-size: 1.8rem;
    }
    
    .letter-content-wrapper {
        padding: 35px 25px;
    }
    
    .letter-content {
        font-size: 1rem;
    }
    
    .letter-highlight {
        font-size: 1.25rem;
        padding-left: 12px;
    }
    
    .letter-content li {
        padding-left: 1.2em;
    }
}

/* Remove all styles related to the 3D paper letter modal */
.fullscreen-letter,
.letter-paper,
.letter-fold,
.letter-content-3d,
.letter-header-3d,
.letter-logo,
.letter-body,
.close-letter-modal,
.case-study-letter,
.close-letter-btn,
.case-study-preview,
.read-letter-btn,
.case-study-icon,
.modal-paper-texture {
    display: none;
}

/* Fix voor letter-stamp en brief content */

/* Verwijder de letter-stamp stijl */
.letter-stamp {
    display: none;
}

/* Aanpassing voor letter-header om het ruimteprobleem op te lossen */
.letter-header {
    justify-content: flex-start;
}

/* Zorg ervoor dat letter-content-wrapper altijd zichtbaar is */
.letter-content-wrapper {
    opacity: 1 !important; /* Force opacity to be 1 */
}

/* Zorg ervoor dat alle elementen binnen letter-content zichtbaar zijn */
.letter-content p,
.letter-content ul,
.letter-content li {
    opacity: 0.9 !important;
    transform: translateY(0) !important;
}

/* Aanpassing voor letter-title voor betere leesbaarheid */
.letter-title {
    max-width: 100%;
}

/* Zorg ervoor dat GSAP animaties geen problemen veroorzaken */
.gsap-hidden {
    visibility: visible !important;
    opacity: 1 !important;
}