/* ==========================================================================
   1. CSS Variabelen (Makkelijk aanpasbare huisstijl)
   ========================================================================== */
:root {
    /* Kleuren */
    --color-primary: #C59D5F; /* Warme koper/goud kleur voor knoppen en accenten */
    --color-primary-hover: #a37c44;
    --color-bg-dark: #121212; /* Diep donker voor een premium look */
    --color-bg-light: #1e1e1e; /* Iets lichtere secties */
    --color-text-main: #f5f5f5;
    --color-text-muted: #aaaaaa;
    --color-input-bg: #2a2a2a;
    --color-input-border: #444;

    /* Lettertypes */
    --font-headings: 'Playfair Display', serif;
    --font-body: 'Roboto', sans-serif;

    /* Spatiëring & Borders */
    --spacing-section: 4rem 1.5rem;
    --border-radius: 8px;
    --transition-speed: 0.3s;
}

/* ==========================================================================
   2. Reset & Basis (Mobile-First)
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-dark);
    color: var(--color-text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typografie */
h1, h2, h3 {
    font-family: var(--font-headings);
    font-weight: 600;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; color: var(--color-primary); margin-bottom: 2rem; }
h3 { font-size: 1.3rem; margin-bottom: 0.5rem; }

a {
    text-decoration: none;
    color: inherit;
}

.text-center { text-align: center; }
.lead-text { font-size: 1.1rem; max-width: 800px; margin: 0 auto; color: var(--color-text-muted); }

/* Layout Containers */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
}

.section {
    padding: var(--spacing-section);
}

.bg-light {
    background-color: var(--color-bg-light);
}

/* ==========================================================================
   3. Componenten (Nav, Buttons, Cards)
   ========================================================================== */
/* Knoppen */
.btn-primary, .btn-nav {
    display: inline-block;
    background-color: var(--color-primary);
    color: #121212;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: bold;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color var(--transition-speed) ease;
}

.btn-primary:hover, .btn-nav:hover {
    background-color: var(--color-primary-hover);
}

/* Navigatie */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.nav-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.logo img {
    display: block;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.nav-links a:not(.btn-nav) {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color var(--transition-speed);
}

.nav-links a:not(.btn-nav):hover {
    color: var(--color-primary);
}

/* Hero Sectie */
.hero {
    position: relative;
    height: 100vh;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 1.5rem;
    background: url('hero-bg.jpg') center/cover no-repeat; 
    background-color: #2a2a2a; 
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.6);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #ddd;
}

/* Diensten Grid */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.service-card {
    background-color: var(--color-bg-dark);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255,255,255,0.05);
    transition: transform var(--transition-speed);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
}

.service-card p {
    color: var(--color-text-muted);
}

/* ==========================================================================
   4. Formulier / Reserveringstool
   ========================================================================== */
.reservation-form {
    background-color: var(--color-bg-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255,255,255,0.05);
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--color-input-bg);
    border: 1px solid var(--color-input-border);
    border-radius: 4px;
    color: var(--color-text-main);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-speed);
}

/* Zorg dat datum/tijd iconen zichtbaar blijven in dark mode */
.form-group input[type="date"]::-webkit-calendar-picker-indicator,
.form-group input[type="time"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

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

.btn-submit {
    width: 100%;
    margin-top: 1rem;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    padding: 2rem 1.5rem;
    background-color: #0a0a0a;
    font-size: 0.9rem;
    color: #777;
    border-top: 1px solid #222;
}

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

/* ==========================================================================
   5. Media Queries (Voor Tablet & Desktop)
   ========================================================================== */
@media (min-width: 768px) {
    .nav-container {
        flex-direction: row;
        justify-content: space-between;
    }

    h1 { font-size: 3.5rem; }
    
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    /* Formulier layout op grotere schermen */
    .reservation-form {
        grid-template-columns: 1fr 1fr; /* Twee kolommen */
    }
    
    /* Bepaalde velden over de volle breedte */
    .form-group.full-width,
    .form-group.submit-group {
        grid-column: span 2;
    }
}