:root {
    --color-bg: #ffffff;
    --color-surface: #f5f5f7;
    --color-surface-hover: #e8e8ed;
    --color-text: #1d1d1f;
    --color-text-muted: #86868b;
    --color-accent: #0066cc; /* Trustworthy blue */
    --color-accent-hover: #0077ed;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    --border-radius: 20px;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    letter-spacing: -0.02em;
    line-height: 1.1;
    font-weight: 600;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Glassmorphism Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: var(--transition);
}

.header-inner {
    width: 100%;
    margin: 0 auto;
    max-width: 1200px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-sm);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 24px;
}

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

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    position: relative;
    transition: var(--transition);
}

.hamburger::before, .hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    left: 0;
    transition: var(--transition);
}

.hamburger::before { top: -6px; }
.hamburger::after { top: 6px; }

/* Button Styles */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 980px; /* Apple pill shape */
    font-weight: 500;
    font-size: 0.95rem;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background-color: var(--color-accent);
    color: #fff;
    border: none;
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    color: #fff;
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-text);
}

.btn-outline:hover {
    background-color: var(--color-text);
    color: #fff;
}

/* Sections */
section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg) auto;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 70px;
    background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
    position: relative;
}

.hero-content {
    text-align: center;
    z-index: 2;
    padding: 0 var(--spacing-md);
    max-width: 900px;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(90deg, #1d1d1f 0%, #434346 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    font-weight: 400;
}

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

.hero-image-wrapper {
    position: absolute;
    bottom: -10%;
    right: -10%;
    width: 60%;
    opacity: 0.1;
    z-index: 1;
    pointer-events: none;
    transform: rotate(5deg) scale(1.1);
}

.hero-image-wrapper img {
    width: 100%;
    object-fit: cover;
    border-radius: 40px;
    filter: grayscale(100%);
}

/* Diensten Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: var(--spacing-lg);
}

.card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-8px);
    background-color: var(--color-surface-hover);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.card-text {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    flex-grow: 1;
}

/* Methodieken */
.methodieken {
    background-color: #000;
    color: #f5f5f7;
}

.methodieken .section-title {
    color: #fff;
}

.methodieken .section-subtitle {
    color: #a1a1a6;
}

.methodieken-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.method-item {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: var(--spacing-sm);
}

.method-title {
    font-size: 1.3rem;
    color: #fff;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.method-text {
    color: #a1a1a6;
    font-size: 1rem;
}

/* Over Mij */
.over-mij-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.over-mij-text h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.over-mij-text p {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.feature-list {
    margin-top: var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.feature {
    display: flex;
    flex-direction: column;
}

.feature-title {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.feature-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.over-mij-image {
    width: 100%;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0,0,0,0.12);
}

.over-mij-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.over-mij-image:hover img {
    transform: scale(1.05);
}

/* Contact */
.contact-section {
    background-color: var(--color-surface);
}

.contact-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    background: #fff;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 20px 40px rgba(0,0,0,0.04);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.contact-item h4 {
    color: var(--color-text-muted);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.contact-item p, .contact-item a {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text);
}

/* Footer */
footer {
    background-color: var(--color-bg);
    padding: var(--spacing-md) 0;
    border-top: 1px solid rgba(0,0,0,0.1);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    text-align: center;
}

/* Scroll Animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Responsive adjustments */
@media (max-width: 900px) {
    .over-mij-content {
        grid-template-columns: 1fr;
    }
    
    .over-mij-image {
        order: -1; /* Image first on mobile */
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 5rem;
        --spacing-lg: 3rem;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        align-items: center;
        padding: var(--spacing-md) 0;
        gap: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        clip-path: circle(0% at top right);
        transition: clip-path 0.5s ease-out;
    }
    
    .nav-links.nav-active {
        clip-path: circle(150% at top right);
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .burger-active .hamburger { background: transparent; }
    .burger-active .hamburger::before { transform: rotate(45deg); top: 0; }
    .burger-active .hamburger::after { transform: rotate(-45deg); top: 0; }

    .hero-title {
        font-size: 2.5rem;
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
    }
}