:root {
    /* Color Palette */
    --clr-primary: hsl(142, 45%, 32%); /* Forest Green */
    --clr-primary-light: hsl(142, 45%, 42%);
    --clr-accent: hsl(38, 92%, 50%); /* Golden Yellow */
    --clr-dark: hsl(210, 24%, 16%);
    --clr-light: hsl(140, 15%, 96%);
    --clr-white: hsl(0, 0%, 100%);
    --clr-gray: hsl(210, 10%, 40%);
    
    /* Typography */
    --font-sans: 'Inter', sans-serif;
    --font-serif: 'Playfair Display', serif;
    
    /* Spacing & Sizes */
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--clr-dark);
    line-height: 1.6;
    background-color: var(--clr-white);
    -webkit-font-smoothing: antialiased;
}

/* Typography utilities */
h1, h2, h3 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.25rem; font-family: var(--font-sans); font-weight: 600; }
p { margin-bottom: var(--space-md); }

.text-center { text-align: center; }
.text-white { color: var(--clr-white); }
.bg-light { background-color: var(--clr-light); }
.bg-primary { background-color: var(--clr-primary); }

/* Layout */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section {
    padding: var(--space-xl) 0;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

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

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--clr-primary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-sm { padding: 0.5rem 1rem; font-size: 0.9rem; }
.btn-lg { padding: 1rem 2rem; font-size: 1.1rem; }

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

.btn-primary:hover {
    background-color: var(--clr-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 117, 76, 0.3);
}

.btn-outline {
    background: transparent;
    border-color: var(--clr-white);
    color: var(--clr-white);
}

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

.btn-light {
    background-color: var(--clr-white);
    color: var(--clr-primary);
}
.btn-light:hover {
    background-color: var(--clr-light);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    /* We use the generated image from the file path */
    background-image: url('achtergrond.png');
    background-size: cover;
    background-position: center;
    color: var(--clr-white);
    margin-top: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.7) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero h1 span {
    color: var(--clr-accent);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--space-lg);
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Section Header */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

/* Grid & Cards */
.grid {
    display: grid;
    gap: 2rem;
}

.features-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card {
    background: var(--clr-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    transition: var(--transition);
    border-top: 4px solid transparent;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-top-color: var(--clr-primary);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.card p {
    color: var(--clr-gray);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Eisen Section */
.eisen-wrapper {
    background: var(--clr-white);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    border-left: 8px solid var(--clr-accent);
}

.checklist {
    list-style: none;
    margin-top: 2rem;
}

.checklist li {
    position: relative;
    padding-left: 2.5rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.checklist li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--clr-primary);
    font-weight: bold;
    font-size: 1.2rem;
    background: var(--clr-light);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

/* Text Content Container */
.text-content {
    max-width: 800px;
    margin: 0 auto;
}

.quote {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-style: italic;
    margin: 2rem 0;
    opacity: 0.9;
}

/* Newsletter Form */
.newsletter-form {
    display: flex;
    gap: 10px;
    justify-content: center;
    max-width: 500px;
    margin: 2rem auto 1rem;
}

.form-input {
    flex: 1;
    padding: 0.8rem 1.5rem;
    border: 1px solid #ccc;
    border-radius: 50px;
    font-size: 1rem;
    font-family: var(--font-sans);
    outline: none;
    transition: var(--transition);
}

.form-input:focus {
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(46, 117, 76, 0.2);
}

.form-disclaimer {
    font-size: 0.85rem;
    color: var(--clr-gray);
    margin-top: 0.5rem;
}

/* Animation */
.pulse-animation {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7); }
    70% { transform: scale(1.05); box-shadow: 0 0 0 15px rgba(255, 255, 255, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 255, 255, 0); }
}

/* Modals & Clickable Cards */
.clickable-card {
    cursor: pointer;
}

.btn-link {
    background: none;
    border: none;
    color: var(--clr-primary);
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    margin-top: 1rem;
    font-size: 0.95rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
}

.btn-link:hover {
    color: var(--clr-accent);
}

.modal {
    margin: auto;
    border: none;
    border-radius: var(--border-radius);
    padding: 2.5rem;
    max-width: 600px;
    width: 90%;
    background: var(--clr-white);
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    color: var(--clr-dark);
}

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

.modal-content {
    position: relative;
}

.modal-content h3 {
    color: var(--clr-primary);
    margin-bottom: 1rem;
    padding-right: 2rem;
}

.modal-content p {
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 0;
}

.modal-close {
    position: absolute;
    top: -1rem;
    right: -1rem;
    background: var(--clr-light);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--clr-dark);
    transition: var(--transition);
}

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

/* Footer */
.footer {
    background: var(--clr-dark);
    color: var(--clr-gray);
    text-align: center;
    padding: 2rem 0;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; text-align: center; }
    .eisen-wrapper { padding: 1.5rem; }
    .newsletter-form { flex-direction: column; }
}