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

:root {
    /* Hoofdkleuren */
    --primary-color: #FF8966;
    --secondary-color: #2E4057;
    --accent-color: #66A182;
    --light-color: #F7F9F9;
    --dark-color: #252525;
    --gray-color: #EBEBEB;
    --dark-gray: #888888;

    /* Schaduwen en effecten */
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --hover-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;

    /* Typografie */
    --heading-font: 'Poppins', sans-serif;
    --body-font: 'Poppins', sans-serif;
}

html {
    font-size: 62.5%; /* 10px = 1rem */
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 120rem;
    margin: 0 auto;
    padding: 0 2rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    cursor: pointer;
    font-family: var(--body-font);
    border: none;
    background: none;
    transition: var(--transition);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

h1 {
    font-size: 4.8rem;
}

h2 {
    font-size: 3.6rem;
}

h3 {
    font-size: 2.4rem;
}

h4 {
    font-size: 2rem;
}

p {
    margin-bottom: 1.5rem;
}

section {
    padding: 8rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

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

.section-header p {
    font-size: 2rem;
    color: var(--dark-gray);
    max-width: 70rem;
    margin: 0 auto;
}

.section-header.light h2,
.section-header.light p {
    color: var(--light-color);
}

/* Knoppen */
.btn {
    display: inline-block;
    padding: 1.2rem 3rem;
    border-radius: 5rem;
    font-weight: 600;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    font-size: 1.4rem;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

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

.btn-primary:hover {
    background-color: var(--secondary-color);
    box-shadow: var(--hover-shadow);
    transform: translateY(-3px);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    box-shadow: var(--hover-shadow);
    transform: translateY(-3px);
}

/* Header & Navigatie */
#header {
    position: fixed;
    width: 100%;
    z-index: 1000;
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1.5rem 0;
    top: 0;
    transition: var(--transition);
}

#header.scrolled {
    padding: 1rem 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 5rem;
}

.desktop-nav ul {
    display: flex;
    gap: 3rem;
}

.desktop-nav a {
    font-weight: 500;
    color: var(--secondary-color);
    position: relative;
}

.desktop-nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.desktop-nav a:hover,
.desktop-nav a.active {
    color: var(--primary-color);
}

.desktop-nav a:hover::after,
.desktop-nav a.active::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.5rem;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 3rem;
    height: 0.3rem;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

.mobile-nav {
    display: none;
    background-color: white;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.mobile-nav ul {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.mobile-nav a {
    font-weight: 500;
    color: var(--secondary-color);
    display: block;
    padding: 1rem 0;
    border-bottom: 1px solid var(--gray-color);
}

.mobile-nav a:hover {
    color: var(--primary-color);
}

.mobile-nav.active {
    display: block;
}

/* Hero Sectie */
.hero {
    padding: 15rem 0 8rem;
    background-color: var(--light-color);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background-color: var(--primary-color);
    opacity: 0.05;
    transform: skewX(-15deg);
    z-index: 1;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    position: relative;
    z-index: 2;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 5.6rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.hero-content h2 {
    font-size: 2.8rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.hero-content p {
    font-size: 1.8rem;
    margin-bottom: 3rem;
    max-width: 60rem;
}

.hero-buttons {
    display: flex;
    gap: 2rem;
}

.hero-image {
    flex: 1;
    position: relative;
}

.hero-image img {
    border-radius: 1rem;
    box-shadow: var(--box-shadow);
    width: 100%;
    height: auto;
    object-fit: cover;
    transform: rotate(2deg);
}

.hero-image::before {
    content: '';
    position: absolute;
    top: -2rem;
    right: -2rem;
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary-color);
    border-radius: 1rem;
    z-index: -1;
}

/* Concept Sectie */
.concept {
    background-color: white;
    position: relative;
}

.concept-content {
    display: flex;
    align-items: center;
    gap: 6rem;
}

.concept-text {
    flex: 1;
}

.concept-text h3 {
    font-size: 2.8rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.concept-text p {
    margin-bottom: 3rem;
}

.concept-list {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.concept-list li {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
}

.concept-list .icon {
    font-size: 3rem;
    background-color: var(--light-color);
    width: 6rem;
    height: 6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: var(--box-shadow);
}

.concept-list h4 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.concept-image {
    flex: 1;
    position: relative;
}

.concept-image img {
    border-radius: 1rem;
    box-shadow: var(--box-shadow);
    width: 100%;
    height: auto;
    object-fit: cover;
}

.concept-image::after {
    content: '';
    position: absolute;
    bottom: -2rem;
    left: -2rem;
    width: 70%;
    height: 70%;
    background-color: var(--primary-color);
    opacity: 0.1;
    border-radius: 1rem;
    z-index: -1;
}

/* Voordelen Sectie */
.voordelen {
    position: relative;
    color: var(--light-color);
    padding: 10rem 0;
}

.voordelen-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--secondary-color);
    background-image: linear-gradient(135deg, var(--secondary-color) 0%, #3D5A80 100%);
    clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%);
    z-index: -1;
}

.voordelen-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(30rem, 1fr));
    gap: 3rem;
}

.voordeel-card {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 3rem;
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.voordeel-card:hover {
    transform: translateY(-1rem);
    background-color: rgba(255, 255, 255, 0.2);
}

.voordeel-icon {
    margin-bottom: 2rem;
    width: 8rem;
    height: 8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-color);
    border-radius: 50%;
    box-shadow: var(--box-shadow);
}

.voordeel-icon img {
    width: 4rem;
    height: 4rem;
}

.voordeel-card h3 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    color: var(--light-color);
}

.voordeel-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.6rem;
    margin-bottom: 0;
}

/* Workouts Sectie */
.workouts {
    background-color: white;
    position: relative;
}

.workout-tabs {
    max-width: 100rem;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    border-bottom: 2px solid var(--gray-color);
    margin-bottom: 4rem;
}

.tab-btn {
    padding: 1.5rem 3rem;
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--dark-gray);
    background: none;
    border: none;
    position: relative;
    transition: var(--transition);
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.tab-btn:hover,
.tab-btn.active {
    color: var(--primary-color);
}

.tab-btn.active::after {
    width: 100%;
}

.tab-content {
    overflow: hidden;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(2rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.workout-content {
    display: flex;
    align-items: center;
    gap: 5rem;
}

.workout-info {
    flex: 1;
}

.workout-info h3 {
    font-size: 2.8rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.workout-info p {
    margin-bottom: 2.5rem;
}

.workout-list {
    margin-bottom: 2.5rem;
}

.workout-list li {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--gray-color);
}

.workout-list li:last-child {
    border-bottom: none;
}

.workout-list span {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    background-color: rgba(255, 137, 102, 0.1);
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-right: 2rem;
}

.workout-note {
    font-style: italic;
    color: var(--dark-gray);
    padding: 1.5rem;
    background-color: var(--light-color);
    border-radius: 0.5rem;
}

.workout-image {
    flex: 1;
    position: relative;
}

.workout-image img {
    border-radius: 1rem;
    box-shadow: var(--box-shadow);
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* Resultaten Sectie */
.resultaten {
    background-color: var(--light-color);
    position: relative;
}

.resultaten-timeline {
    max-width: 80rem;
    margin: 0 auto 6rem;
    position: relative;
}

.resultaten-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background-color: var(--primary-color);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    margin-bottom: 5rem;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 5rem;
    height: 5rem;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 2rem;
    box-shadow: var(--box-shadow);
    z-index: 2;
}

.timeline-content {
    width: 45%;
    background-color: white;
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: var(--box-shadow);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 2rem;
    width: 2rem;
    height: 2rem;
    background-color: white;
    transform: rotate(45deg);
}

.timeline-item:nth-child(odd) .timeline-content::before {
    left: -1rem;
}

.timeline-item:nth-child(even) .timeline-content::before {
    right: -1rem;
}

.timeline-content h3 {
    font-size: 2.2rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.timeline-content p {
    margin-bottom: 2rem;
}

.timeline-content ul {
    padding-left: 2rem;
}

.timeline-content ul li {
    list-style-type: disc;
    margin-bottom: 0.8rem;
    color: var(--dark-gray);
}

.testimonials {
    margin-top: 8rem;
}

.testimonials h3 {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 4rem;
}

.testimonials-slider {
    position: relative;
    overflow: hidden;
}

.testimonial {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.testimonial-content {
    background-color: white;
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: var(--box-shadow);
    position: relative;
}

.testimonial-content::after {
    content: '';
    position: absolute;
    bottom: -1.5rem;
    left: 3rem;
    width: 3rem;
    height: 3rem;
    background-color: white;
    transform: rotate(45deg);
    z-index: 1;
}

.testimonial-content p {
    font-style: italic;
    margin-bottom: 0;
    position: relative;
    z-index: 2;
}

.testimonial-content p::before {
    content: '"';
    font-size: 6rem;
    position: absolute;
    top: -3rem;
    left: -1rem;
    color: var(--primary-color);
    opacity: 0.2;
    z-index: -1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding-left: 3rem;
}

.testimonial-author img {
    width: 6rem;
    height: 6rem;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid white;
    box-shadow: var(--box-shadow);
}

.testimonial-author h4 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.testimonial-author p {
    margin-bottom: 0;
    color: var(--dark-gray);
}

.testimonial-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 3rem;
}

.prev-btn,
.next-btn {
    background-color: var(--secondary-color);
    color: white;
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    transition: var(--transition);
}

.prev-btn:hover,
.next-btn:hover {
    background-color: var(--primary-color);
    transform: scale(1.1);
}

.testimonial-dots {
    display: flex;
    gap: 1rem;
}

.dot {
    width: 1.2rem;
    height: 1.2rem;
    border-radius: 50%;
    background-color: var(--gray-color);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: var(--primary-color);
}

/* Contact Sectie */
.contact {
    background-color: white;
    position: relative;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(40rem, 1fr));
    gap: 5rem;
}

.contact-info p {
    margin-bottom: 3rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.contact-icon {
    width: 5rem;
    height: 5rem;
    background-color: var(--light-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon img {
    width: 2.5rem;
    height: 2.5rem;
}

.contact-item h4 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.contact-item p {
    margin-bottom: 0;
    color: var(--dark-gray);
}

.map-container {
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.contact-form {
    background-color: var(--light-color);
    padding: 4rem;
    border-radius: 1rem;
    box-shadow: var(--box-shadow);
}

.contact-form h3 {
    font-size: 2.4rem;
    margin-bottom: 3rem;
    text-align: center;
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1.2rem;
    border: 1px solid var(--gray-color);
    border-radius: 0.5rem;
    font-family: var(--body-font);
    font-size: 1.6rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group.checkbox {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.form-group.checkbox input {
    width: auto;
    margin-top: 0.5rem;
}

.form-group.checkbox label {
    margin-bottom: 0;
    font-weight: normal;
    font-size: 1.4rem;
}

.form-group.checkbox a {
    color: var(--primary-color);
    font-weight: 600;
}

.form-group.checkbox a:hover {
    text-decoration: underline;
}

.contact-form .btn {
    width: 100%;
}

/* Footer */
.footer {
    background-color: var(--secondary-color);
    color: white;
    padding: 6rem 0 3rem;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(30rem, 1fr));
    gap: 5rem;
    margin-bottom: 5rem;
}

.footer-logo img {
    height: 5rem;
    margin-bottom: 2rem;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-newsletter h3 {
    color: white;
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
}

.footer-newsletter p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2rem;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 1.2rem 2rem;
    border: none;
    border-radius: 5rem;
    font-family: var(--body-font);
    font-size: 1.4rem;
}

.newsletter-form input:focus {
    outline: none;
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links ul {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.4rem;
    transition: var(--transition);
}

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

.footer-copyright p {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0;
}

/* Cookie banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--secondary-color);
    color: white;
    padding: 2rem 0;
    box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.1);
    z-index: 999;
    display: none;
}

.cookie-banner .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.cookie-banner p {
    margin-bottom: 0;
    flex: 1;
}

.cookie-banner a {
    color: var(--primary-color);
    font-weight: 600;
}

.cookie-banner a:hover {
    text-decoration: underline;
}

.cookie-banner.active {
    display: block;
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 3rem;
    right: 3rem;
    width: 5rem;
    height: 5rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.4rem;
    box-shadow: var(--box-shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    transform: translateY(-5px);
}

/* Responsive */
@media screen and (max-width: 1024px) {
    html {
        font-size: 60%;
    }

    .hero {
        padding: 12rem 0 6rem;
    }

    .hero-content h1 {
        font-size: 4.8rem;
    }

    .hero-content h2 {
        font-size: 2.4rem;
    }
}

@media screen and (max-width: 768px) {
    html {
        font-size: 55%;
    }

    .desktop-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero .container,
    .concept-content,
    .workout-content {
        flex-direction: column;
    }

    .hero-image {
        margin-top: 3rem;
    }

    .hero-image::before {
        display: none;
    }

    .timeline-marker {
        width: 4rem;
        height: 4rem;
        font-size: 1.8rem;
    }

    .timeline-item {
        flex-direction: column;
        margin-left: 2.5rem;
    }

    .timeline-item:nth-child(odd) {
        flex-direction: column;
    }

    .resultaten-timeline::before {
        left: 0;
    }

    .timeline-marker {
        left: 0;
        transform: translateX(-50%);
    }

    .timeline-content {
        width: 100%;
        margin-top: 3rem;
    }

    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        left: 2rem;
        top: -1rem;
    }

    .newsletter-form {
        flex-direction: column;
    }
}

@media screen and (max-width: 576px) {
    html {
        font-size: 50%;
    }

    .hero-content h1 {
        font-size: 4rem;
    }

    .hero-content h2 {
        font-size: 2.2rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1.5rem;
    }

    .hero-buttons .btn {
        width: 100%;
        text-align: center;
    }

    .tab-buttons {
        flex-direction: column;
        gap: 0;
    }

    .tab-btn {
        width: 100%;
        text-align: center;
        border-bottom: 1px solid var(--gray-color);
    }

    .tab-btn::after {
        display: none;
    }

    .contact-form {
        padding: 3rem 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .footer-links ul {
        justify-content: center;
    }
}