/* Globale instellingen & Resets */
:root {
    --primary-blue: #00456B; /* Donkerblauw */
    --accent-orange: #FF6633; /* Helder Oranje/Rood voor CTA */
    --warning-yellow: #FFC107; /* Geel voor waarschuwingsbox */
    --light-grey: #F8F8F8; 
    --text-color: #333;
}

body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    background-color: white;
}

/* 1. HEADER & NAVIGATIE */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 5%;
    background-color: white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1); 
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px; 
    margin-right: 10px;
}

.logo span {
    color: var(--primary-blue);
    font-weight: bold;
    font-size: 1.1em;
}

.main-nav ul {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}

.main-nav li a {
    text-decoration: none;
    color: var(--text-color);
    padding: 15px 15px;
    font-weight: 600;
}

.main-nav li a:hover,
.main-nav li:first-child a {
    color: var(--accent-orange);
}

/* CTA Header Knop */
.cta-header-button a {
    background-color: var(--accent-orange);
    color: white;
    padding: 8px 15px; /* Iets kleiner dan de hoofd-CTA */
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    white-space: nowrap;
}

/* 2. HERO SECTIE */
.hero-section {
    background-image: url('hero-banner.jpg'); /* Controleer of u deze naam gebruikt! */
    background-size: cover;
    background-position: center; 
    color: white;
    padding: 80px 5%;
    position: relative;
    height: 450px; 
    display: flex;
    align-items: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5); /* Donkere overlay */
    z-index: 1;
}

.hero-content {
    position: relative; 
    max-width: 450px; 
    z-index: 10;
}

.hero-content h1 {
    font-size: 2.5em;
    margin-top: 0;
    line-height: 1.1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5); /* Voor betere leesbaarheid */
}

/* Hoofd CTA Knop */
.cta-main-button {
    display: inline-block;
    background-color: var(--accent-orange);
    color: white;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 4px;
    font-size: 1.1em;
    font-weight: bold;
    margin: 20px 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
}

/* Waarschuwingsbox */
.warning-box {
    background-color: var(--warning-yellow);
    color: var(--text-color);
    padding: 15px 20px;
    border-radius: 4px;
    margin-top: 20px;
}

.warning-box h4 {
    margin-top: 0;
    color: #CC0000; 
}

/* 3. WAARDEPROPOSITIE / USP's & ZIJBalk */
.usp-wrapper-section {
    display: flex;
    justify-content: space-between;
    padding: 0 5%;
    align-items: flex-start;
    margin-bottom: 50px;
    position: relative; /* Belangrijk voor de positionering */
    z-index: 20; 
}

.usp-container {
    display: flex;
    justify-content: space-around;
    flex-basis: 75%; /* Neemt 75% van de breedte in */
    background-color: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-top: -60px; /* Trek BOXEN OVER DE BANNER */
    padding: 20px 10px;
    border-radius: 8px;
    /* Flexbox zorgt voor strakke verdeling */
}

.usp-box {
    text-align: center;
    flex-basis: 22%;
    padding: 0 10px;
}

.usp-box img {
    height: 50px;
    width: 50px;
    background-color: var(--primary-blue);
    border-radius: 50%;
    padding: 10px;
    margin-bottom: 5px;
}

.usp-box p {
    font-size: 0.9em;
    font-weight: bold;
    color: var(--primary-blue);
    line-height: 1.2;
}

/* Zijbalk Intergas */
.intergas-box {
    flex-basis: 20%; /* Neemt 20% van de breedte in */
    background-color: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    margin-top: -60px; /* Trek BOX OVER DE BANNER */
    margin-left: 20px;
}

.intergas-box h3 {
    color: var(--primary-color);
    margin-top: 0;
    font-size: 1.2em;
}

/* 4. FOOTER CONTENT (Onderste gedeelte) */
.footer-content-section {
    padding: 50px 5%;
    background-color: var(--light-grey); 
}

h2 {
    font-size: 1.5em;
    color: var(--text-color);
}

.cta-inline {
    margin-bottom: 30px;
}

.cta-inline i {
    color: var(--accent-orange);
    margin-right: 5px;
}

.phone-large {
    font-size: 3.5em;
    margin: 5px 0 20px 0;
    color: var(--primary-blue);
    font-weight: bold;
    line-height: 1;
}

.two-column-layout {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

.left-column {
    flex-basis: 55%;
    background-color: white;
    padding: 25px;
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.right-column {
    flex-basis: 40%;
}

.price-info-box {
    background-color: #E0F7FA; 
    padding: 15px;
    border-left: 5px solid #00BCD4; 
    margin-bottom: 20px;
    border-radius: 4px;
}

.price-info-box h4 {
    margin-top: 0;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    box-sizing: border-box;
    border-radius: 4px;
}

.contact-form button {
    background-color: var(--primary-blue);
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    font-weight: bold;
    float: right;
}

.contact-form address {
    margin-top: 50px;
    font-style: normal;
    color: #777;
    clear: both;
}

/* ECHTE FOOTER */
.bottom-footer {
    text-align: center;
    padding: 15px 0;
    background-color: var(--primary-blue);
    color: white;
    font-size: 0.9em;
}

/* Basis Responsiviteit voor kleinere schermen */
@media (max-width: 992px) {
    .usp-wrapper-section,
    .two-column-layout {
        flex-direction: column;
    }

    .usp-container, .intergas-box, .left-column, .right-column {
        flex-basis: 100%;
        margin-top: 20px;
        margin-left: 0;
    }
    .usp-container {
        flex-wrap: wrap;
        justify-content: space-around;
        padding: 10px 0;
    }
    .usp-box {
        flex-basis: 45%;
        margin-bottom: 15px;
    }
    .hero-content {
        max-width: 100%;
    }
    .hero-section {
        height: auto;
        min-height: 400px;
    }
}