/* ==========================================================================
   CSS Custom Properties (Tokens conform DESIGN.md)
   ========================================================================== */
:root {
    /* Kleurenpalet */
    --color-canvas-cream: #090a0d;
    --color-surface-ivory: #15171c;
    --color-pure-white: #f7f8fb;
    --color-ink-charcoal: #f1f3f7;
    --color-slate-gray: #a3a9b5;
    --color-hairline: rgba(255, 255, 255, 0.14);
    
    /* Accenten */
    --color-electric-cobalt: #145cff;
    --color-deep-cobalt: #0b3dcc;
    --color-lavender-mist: #20242d;
    --color-powder-blue: #161b28;

    /* Typografie */
    --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Afmetingen & Radii */
    --radius-card: 16px;
    --radius-pill: 48px;
    
    /* Glassmorphism Variabelen */
    --glass-bg: rgba(25, 28, 35, 0.62);
    --glass-border: rgba(255, 255, 255, 0.16);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.35);
    
    /* Animaties */
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-canvas-cream);
    background-image: linear-gradient(120deg, rgba(29, 34, 44, 0.82), transparent 42%), linear-gradient(245deg, rgba(10, 38, 92, 0.34), transparent 45%), linear-gradient(25deg, rgba(18, 20, 25, 0.9), transparent 38%);
    color: var(--color-ink-charcoal);
    font-family: var(--font-sans);
    line-height: 1.56;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.22;
    background-image: radial-gradient(circle, rgba(105, 127, 169, 0.24) 1.4px, transparent 1.5px), radial-gradient(circle, rgba(20, 92, 255, 0.18) 1.2px, transparent 1.3px);
    background-position: 0 0, 14px 14px;
    background-size: 28px 28px;
    mask-image: linear-gradient(to bottom, black, transparent 92%);
}

/* ==========================================================================
   Decoratieve Achtergrond (Glow orbs voor Glassmorphism contrast)
   ========================================================================== */
.bg-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.6;
}

.orb-primary {
    top: -10%;
    right: -5%;
    width: 600px;
    height: 600px;
    background: rgba(20, 92, 255, 0.2);
}

.orb-secondary {
    bottom: -20%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: rgba(91, 99, 117, 0.2);
}

/* ==========================================================================
   Typografie
   ========================================================================== */
.display-heading {
    font-size: clamp(2.5rem, 6vw, 5.25rem);
    font-weight: 700;
    line-height: 1.06;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    color: var(--color-ink-charcoal);
}

.section-heading {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 40px;
    letter-spacing: -0.01em;
}

.section-kicker {
    color: var(--color-electric-cobalt);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.lead-text {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: var(--color-slate-gray);
    max-width: 680px;
    margin-bottom: 40px;
}

/* ==========================================================================
   Glassmorphism Utilities
   ========================================================================== */
.glass-surface {
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(22px) saturate(125%);
    backdrop-filter: blur(22px) saturate(125%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

/* ==========================================================================
   Navigatie
   ========================================================================== */
.sticky-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-hairline);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-name {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--color-ink-charcoal);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--color-ink-charcoal);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color var(--transition-base);
}

.nav-link:hover {
    color: var(--color-electric-cobalt);
}

.nav-link.active { color: var(--color-electric-cobalt); font-weight: 700; }

/* ==========================================================================
   Knoppen (Buttons)
   ========================================================================== */
.action-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    border-radius: var(--radius-pill);
    font-weight: 500;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition-base);
    cursor: pointer;
    font-family: inherit;
    border: none;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.9375rem;
}

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

.btn-primary:hover {
    background-color: var(--color-electric-cobalt);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(20, 92, 255, 0.34);
}

.btn-ghost {
    background-color: rgba(255, 255, 255, 0.06);
    color: var(--color-ink-charcoal);
    border: 1px solid var(--color-hairline);
}

.btn-ghost:hover {
    border-color: var(--color-electric-cobalt);
    background-color: rgba(20, 92, 255, 0.14);
}

/* ==========================================================================
   Secties & Layout
   ========================================================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.hero-section {
    padding-top: 200px;
    padding-bottom: 120px;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.expertise-section, .cta-section {
    padding: 120px 0;
}

/* ==========================================================================
   Expertise Cards
   ========================================================================== */
.glass-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.glass-card {
    background: rgba(21, 24, 31, 0.58);
    -webkit-backdrop-filter: blur(24px) saturate(125%);
    backdrop-filter: blur(24px) saturate(125%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-card);
    padding: 40px 32px;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 42px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(20, 92, 255, 0.18);
}

.card-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(20, 92, 255, 0.14);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--color-electric-cobalt);
    box-shadow: inset 0 0 0 1px rgba(20, 92, 255, 0.25);
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.detail-card:nth-child(1) .card-title::before { content: "🌐"; margin-right: 10px; }
.detail-card:nth-child(2) .card-title::before { content: "🖥️"; margin-right: 10px; }
.detail-card:nth-child(3) .card-title::before { content: "☁️"; margin-right: 10px; }
.detail-card:nth-child(4) .card-title::before { content: "🧩"; margin-right: 10px; }

.card-body {
    color: var(--color-slate-gray);
    font-size: 0.9375rem;
}

/* ==========================================================================
   CTA Panel
   ========================================================================== */
.cta-panel {
    text-align: center;
    padding: 80px 40px;
    border-radius: var(--radius-card);
}

.page-hero { padding-top: 180px; padding-bottom: 96px; min-height: 54vh; display: flex; align-items: end; }
.page-hero .lead-text { margin-bottom: 0; }
.content-section { padding: 0 0 120px; }
.detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.detail-card { min-height: 250px; }
.detail-card ul { list-style: none; margin-top: 20px; color: var(--color-slate-gray); }
.detail-card li { padding: 8px 0 8px 20px; position: relative; }
.detail-card li::before { content: ""; width: 6px; height: 6px; background: var(--color-electric-cobalt); border-radius: 50%; position: absolute; left: 0; top: 17px; }
.footer-cta { padding: 56px 0; background: rgba(18, 21, 27, 0.78); border-top: 1px solid var(--color-hairline); border-bottom: 1px solid var(--color-hairline); }
.footer-cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.footer-cta .section-kicker { margin-bottom: 8px; }
.footer-cta-title { font-size: clamp(1.7rem, 3vw, 2.5rem); line-height: 1.15; }
.site-footer { background: #050608; color: var(--color-pure-white); padding: 64px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.5fr; gap: 48px; }
.site-footer .brand-name { color: var(--color-pure-white); margin-bottom: 16px; }
.footer-note, .footer-column p { color: #b8bec9; max-width: 300px; font-size: .9375rem; }
.footer-column { display: flex; flex-direction: column; gap: 10px; }
.footer-column h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: #8f9aaa; margin-bottom: 8px; }
.footer-column a { color: #e6e9ee; text-decoration: none; font-size: .9375rem; }
.footer-column a:hover { color: var(--color-electric-cobalt); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid rgba(255,255,255,.14); margin-top: 56px; padding-top: 20px; color: #8f9aaa; font-size: .8125rem; }
.contact-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 64px; align-items: start; }
.contact-list { list-style: none; margin-top: 28px; display: grid; gap: 18px; }
.contact-list a { color: var(--color-electric-cobalt); font-weight: 600; text-decoration: none; }
.contact-list li:nth-child(1) strong::before { content: "✉️"; margin-right: 8px; }
.contact-list li:nth-child(2) strong::before { content: "📞"; margin-right: 8px; }
.contact-list li:nth-child(3) strong::before { content: "💼"; margin-right: 8px; }
.contact-form { padding: 40px; border-radius: var(--radius-card); }
.form-field { display: grid; gap: 8px; margin-bottom: 20px; }
.form-field label { font-size: .875rem; font-weight: 600; }
.form-field input, .form-field textarea { width: 100%; border: 1px solid var(--color-hairline); border-radius: 8px; padding: 13px 14px; font: inherit; background: rgba(5, 6, 8, 0.48); color: var(--color-ink-charcoal); }
.form-field textarea { min-height: 140px; resize: vertical; }
.form-status { margin-top: 16px; color: var(--color-electric-cobalt); font-size: .9rem; }

/* ==========================================================================
   Cookie Popup
   ========================================================================== */
.cookie-panel {
    position: fixed;
    bottom: 32px;
    right: 32px;
    max-width: 420px;
    padding: 24px;
    border-radius: var(--radius-card);
    z-index: 9999;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.cookie-panel.is-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.cookie-title {
    font-size: 1.125rem;
    margin-bottom: 8px;
}

.cookie-text {
    font-size: 0.875rem;
    color: var(--color-slate-gray);
    margin-bottom: 20px;
}

/* ==========================================================================
   Javascript Animaties
   ========================================================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.8, 0.25, 1), transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Media Queries
   ========================================================================== */
@media (max-width: 768px) {
    .nav-container { align-items: flex-start; }
    .nav-list { gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
    .nav-list .btn { display: none; }
    .nav-link { font-size: .8rem; }
    .hero-section { padding-top: 140px; }
    .page-hero { padding-top: 140px; min-height: 46vh; }
    .detail-grid, .contact-layout, .footer-grid { grid-template-columns: 1fr; }
    .footer-cta-inner, .footer-bottom { align-items: flex-start; flex-direction: column; }
    .contact-form { padding: 28px 20px; }
    .cookie-panel {
        bottom: 16px;
        right: 16px;
        left: 16px;
        max-width: none;
    }
}

.nav-brand a { text-decoration: none; }