:root {
    /* Achtergronden */
    --bg: #FAFAFA;             
    --kaart: #FFFFFF;          
    /* accenten */
    --accent-warm: #FF5E00;   
    --accent-koud: #0EA5E9;
    /* Typografie & Hoofdkleuren */ 
    --titel: #0F172A;
    --titelsub: #64748B; 
    --text: #334155;          
    --titel-font: 'Montserrat';
    --tekst-font: 'Inter';
    /* TAGS */
    --tag-warm-bg: #FFF0E6;
    --tag-warm-text: var(--accent-warm);
    --tag-koud-bg: #E0F2FE;
    --tag-koud-text: var(--accent-koud);
    --tag-accent-bg: #F1F5F9;
    --tag-accent-text: var(--text);
    --tag-eco-bg: #DCFCE7;
    --tag-eco-text: #15803D;
    --tag-service-bg: #FEF9C3;
    --tag-service-text: #A16207;
}
[data-bs-theme="dark"] {
    /* Achtergronden */
    --bg: #121A21;             
    --kaart: #1E293B;         
    --textbg: rgba(30, 41, 59, 0.85);    
    /* Accenten */
    --accent-warm: #f39c12;
    --accent-koud: #4ca1d9;  
    /* Typografie */ 
    --titel: #EAEFEF; 
    --titelsub: #BFC9D1;
    --text: #c1d2e9;
    /* TAGS */
    --tag-warm-bg: rgba(243, 156, 18, 0.15);
    --tag-warm-text: var(--accent-warm);
    --tag-koud-bg: rgba(76, 161, 217, 0.15);
    --tag-koud-text: var(--accent-koud);
    --tag-accent-bg: rgba(193, 210, 233, 0.15); 
    --tag-accent-text: var(--text);
    --tag-eco-bg: rgba(21, 128, 61, 0.15);
    --tag-eco-text: #4ADE80;
    --tag-service-bg: rgba(161, 98, 7, 0.15);
    --tag-service-text: #FDE047;
}
.dark-toggle-pos {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 1rem; 
    padding-bottom: 1rem;
}
html {scroll-behavior: smooth; }
body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--tekst-font), sans-serif; 
    line-height: 1.6;
}
h1, h2, h3, h4, h5 {
  margin-top: 0;
  margin-bottom: 1rem;
  line-height: 1.2;
}
h1 {
    font-family: var(--titel-font);
    font-weight: 800;
    font-size: 3rem; 
    margin-bottom: 0.5em;
    letter-spacing: -0.02em;
    color: var(--titel); 
}
h2 {
    font-family: var(--titel-font);
    font-weight: 700;
    font-size: 2.25rem;
    color: var(--titel);
    letter-spacing: -0.01em;
}
h3 {
    font-family: var(--titel-font);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--titel);
}
h4 {
    font-family: var(--titel-font);
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--titelsub);
    line-height: 1.4;
}
h5 {
    font-family: var(--titel-font);
    font-weight: 500;
    font-size: 1rem;
    color: var(--titelsub);
    line-height: 1.5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}
p {
    font-family: var(--tekst-font);
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.7;
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: var(--text);
}
a {
    color: var(--accent-warm);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}
a:hover {
    color: var(--accent-warm); 
    text-decoration: underline var(--accent-warm);
}
i {
    color: var(--accent-warm);
    font-style: italic;
    font-family: var(--titel-font), serif; 
}
hr{
    border: 1px solid var(--accent-koud);
    width: 80%;
    margin: 0 auto;
}
.bg-alt {
    background-color: var(--kaart);
}
.txt-alt {
    color: white;
}
.color-accent {
    color: var(--accent-warm);
}
.centering {
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}
.nohover:hover {
    text-decoration: none;
    border-bottom: none;
}
.topspacer {
    margin-top: 6rem;
}
.navbar {
    z-index: 20;
    background-color: var(--bg);
    color: var(--accent-warm);
    width: 80vw;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--titel-font);
    font-weight: 600;
    border: solid 2px var(--accent-koud);
    border-top: none;
}
.vertical-brand {
    z-index: 10;
    position: fixed;
    top: 50%;
    left: 0; 
    transform-origin: top left; 
    transform: rotate(-90deg) translateX(-50%); 
    white-space: nowrap;
    font-family: var(--titel-font);
    font-size: 3em;
    font-weight: bold;
    color: var(--bg);
    text-decoration: underline var(--accent-warm);
    transition: color 0.3s ease;
    text-shadow: 1px 1px 10px var(--titelsub), 1px 1px 10px var(--titelsub);
}
.navbar-brand:hover {
    color: var(--accent-warm);
    text-shadow: 3px 3px 15px var(--accent-warm);
    text-decoration: underline var(--accent-warm);
}
.navbar .nav-link {
    color: var(--text);
}
.navbar .nav-link:hover {
    color: var(--accent-warm);
}
.nav-item.dropdown {
    position: static;
}
.nav-item.dropdown .dropdown-menu {
    left: 0; 
    right: 0;
    width: 100%; 
    border: none;
    margin-top: -1em;
    min-width: unset; 
}
.navbar-brandmobile {
    z-index: 10;
    position: absolute;
    top: 3rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--titel-font);
    font-size: 1.2em;
    font-weight: bold;
    color: var(--bg);
    text-decoration: underline var(--accent-warm);
    display: block;
    text-shadow: 1px 1px 10px var(--titelsub), 1px 1px 10px var(--titelsub);
}
.navbar-box {
    border-top: 0;
    border-left: 0;
    border-style: 0;
    border-bottom: 1px solid var(--accent-koud);
}
.custom-toggler {
    background: transparent;
    border: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
.custom-toggler:focus {
    color: var(--accent-warm);
    transition: all 0.3s ease;
    width: 35px; 
}
.custom-toggler span {
    display: block;
    color: var(--accent-warm);
    line-height: 0;
    height: 3px; 
    background-color: currentColor;
    margin: 3px 0; 
    transition: all 0.3s ease;
    border-radius: 2px;
}
.custom-toggler span::before {
    display: none;
}
.custom-toggler span:nth-child(1) {
    width: 35px;
}
.custom-toggler span:nth-child(2) {
    width: 25px;
}
.custom-toggler span:nth-child(3) {
    width: 15px;
}
.custom-toggler:hover span{
    color: var(--accent-warm);
    transition: all 0.3s ease;
    width: 35px; 
}
.cbutton {
    background-color: var(--accent-warm);
    color: white;
    border-radius: 15px;        
    padding: 10px 15px;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    border: 1px solid var(--accent-warm);
    transition: 
        background-color 0.3s ease, 
        color 0.3s ease, 
        border-color 0.3s ease,
        box-shadow 0.3s ease;
}
.cbutton:hover {
    background-color: var(--accent-koud); 
    color: var(--bg);            
    border-color: var(--accent-koud);
    box-shadow: 0 4px 10px rgba(242, 145, 27, 0.4); 
    text-decoration: none;
}
.cbutton:active {
    background-color: var(--bg); 
    border-color: var(--accent-warm);
    box-shadow: 0 2px 5px rgba(242, 145, 27, 0.6) inset; 
    transform: translateY(1px);
}
.cbutton:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(242, 145, 27, 0.5); 
}
/* service gebieden */
.footer {
    background-color: var(--kaart);
    border-radius: 15px;
}
.footer a:hover {
    color: var(--text); 
    text-decoration: underline var(--accent-warm);
}
/* --- Homepage --- */
.header {
    position: relative;
    margin-left: 50%;
    transform: translateX(-50%);
    width: 100vw;
}
.header img {
    object-fit: cover;
    max-height: 75vh;
    width: 100vw;
}
.headertext {
    z-index: 10;
    width: 100vw;
    bottom: 0;
    margin-bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    position: absolute;
    display: block;
    border-bottom: none;
    background-color: color-mix(in srgb, var(--kaart), transparent 50%);
    color: var(--text);
    line-height: clamp(3rem, 4.5rem, 4.5rem);
    font-size: clamp(0.8rem, 4vw, 3rem);
}
.foto {
    max-width: 100%;
}
/* diensten */
.dienst-kaart {
  background-color: var(--kaart);
  border-radius: 24px;
  padding: 12px;
  max-width: 380px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  font-family: var(--tekst-font), sans-serif;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.dienst-kaart:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}
.dienst-afbeelding {
  position: relative;
  width: 100%;
  height: 220px;
  border-radius: 16px;
  overflow: hidden;
  flex-shrink: 0;
}
.dienst-afbeelding img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.dienst-kaart:hover .dienst-afbeelding img {
  transform: scale(1.05);
}
.dienst-badge {
  position: absolute;
  top: 0;
  left: 0;
  background-color: var(--kaart);
  color: var(--titelsub);
  font-family: var(--tekst-font), sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 16px;
  border-left: 1px;
  border-top: 1px;
  border-bottom-right-radius: 16px 0 16px 0;
  z-index: 2;
}
.dienst-content {
  padding: 20px 8px 8px 8px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.dienst-header {
  margin-bottom: 12px;
}
.dienst-titel {
  font-family: var(--titel-font), sans-serif;
  color: var(--titel);
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
}
.dienst-omschrijving {
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}
.dienst-omschrijving strong {
  color: var(--titel);
  font-weight: 600;
  display: inline-block;
  margin-bottom: 6px;
}
.dienst-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  margin-top: auto;
}
.d-tag {
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--tekst-font), sans-serif;
}
.tag-warm {
  background-color: var(--tag-warm-bg);
  color: var(--tag-warm-text);
}
.tag-koud {
  background-color: var(--tag-koud-bg);
  color: var(--tag-koud-text);
}
.tag-eco {
  background-color: var(--tag-eco-bg);
  color: var(--tag-eco-text);
}
.tag-accent {
  background-color: var(--tag-accent-bg);
  color: var(--tag-accent-text);
}
.tag-service {
  background-color: var(--tag-service-bg);
  color: var(--tag-service-text);
}
.dienst-knop {
  display: block;
  width: 100%;
  background-color: var(--accent-warm);
  color: #FFFFFF;
  text-align: center;
  padding: 12px 0;
  border-radius: 20px;
  font-family: var(--titel-font), sans-serif;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s ease, background-color 0.2s ease;
}
.dienst-knop:hover {
  background-color: var(--accent-koud);
  color: #FFFFFF;
  text-decoration: none;
}
/* footer */
.reviewblock {
    position: relative;
    width: 100vw;
    height: 20em;
    left: 50%;
    transform: translateX(-50%);
    background-color: color-mix(in srgb, var(--kaart), transparent 50%);
}
.reviewblock h3 {
    color: var(--accent-warm);
    padding-top: 1.2em;
}
.contact {
    position: relative;
    width: 100vw;
    height: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--kaart);
    margin-top: 2em;
}
.form-label {
    font: var(--titel-font);
}
.form-control {
    border: none; 
    border-bottom: 2px solid var(--text); 
    border-radius: 0; 
    box-shadow: none !important; 
    transition: border-color 0.3s ease-in-out;
    background-color: transparent; 
}
.form-control:focus {
    border-color: var(--accent-warm) !important; 
    border-top: 0;
    border-left: 0;
    border-right: 0;
    border-bottom: 0.2em solid var(--accent-warm);
    box-shadow: none !important;
    background-color: var(--kaart);
}
.info {
    color: var(--text);
}
.faq {
    background-color: var(--kaart);
}
.faq-alt {
    background-color: var(--kaart);
}
/* Custom Form Pop-up Overlay */
.form-popup-overlay {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.form-popup-overlay.show {
    opacity: 1;
    pointer-events: auto;
}
.form-popup-box {
    background-color: var(--kaart);
    color: var(--text);
    padding: 40px 30px;
    border-radius: 15px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    border-top: 5px solid var(--accent-warm);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transform: translateY(30px);
    transition: transform 0.3s ease;
}
.form-popup-overlay.show .form-popup-box {
    transform: translateY(0);
}
.form-popup-box h3 {
    color: var(--titel);
    font-family: var(--titel-font);
    margin-bottom: 15px;
}
.form-popup-box p {
    font-family: var(--tekst-font);
    font-size: 1.1rem;
    margin-bottom: 25px;
}
/* --- Over Ons --- */
.bread {
    display: inline-flex;
    padding: 0.5rem 3rem 0.5rem 1rem;
    background-color: var(--accent-warm);
    width: max-content;
    font-size: 1.5rem;
    margin-left: -1.5rem;
}
.plogo {
    max-height: 64px;
}
/* --- Prijssimulatie --- */
.simulatie-card {
    background-color: var(--bg);
    border: 2px solid var(--accent-koud);
    border-radius: 15px;
    transition: all 0.3s ease-in-out;
    cursor: pointer;
    text-decoration: none;
    height: 100%;
    display: block;
    position: relative;
    overflow: hidden;
}
.simulatie-card:hover {
    border-color: var(--accent-warm);
    transform: translateY(-5px);
    text-decoration: none;
}
.simulatie-icon {
    font-size: 4rem;
    color: var(--accent-warm);
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}
.simulatie-card:hover .simulatie-icon {
    transform: scale(1.1);
}
.simulatie-title {
    color: var(--text);
    text-transform: uppercase;
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}
.simulatie-text {
    color: var(--text);
    font-size: 1rem;
}
.simulatie-btn {
        margin-top: 20px;
        background-color: transparent;
        border: 1px solid var(--oranje);
        color: var(--oranje);
        padding: 8px 20px;
        border-radius: 5px;
        text-transform: uppercase;
        font-weight: bold;
        transition: background 0.3s;
}
/* --- warmtepomp simulatie --- */
.img-thumbnail {
    object-fit: contain;
    height: 60px;
    width: 60px;
}
/* --- Contact --- */
.contact-info {
    background-color: var(--kaart);
    color: var(--text);
}
.contact-info li {
    color: var(--accent-warm);
    list-style: none;
    padding-bottom: 1rem;
}
.contact-info a {
    color: var(--text);
    padding-left: 0.5rem;
}
.contact-info a:hover {
    color: var(--accent-warm);
}
.page-contact .footer-contact {
    display: none !important;
}
.page-contact .footer-faq {
    flex: 0 0 auto;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}
.page-contact .footer-faq-sectie h2 {
    text-align: center;
}
/* --- zonnepanelen --- */
.solar-img {
    width: 100%;
    object-fit: contain;
}
.cta-btn {
    background-color: var(--accent-warm);
    color: white;
    border-radius: 15px;        
    padding: 10px 15px;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    border: 1px solid var(--accent-warm);
    transition: 
        background-color 0.3s ease, 
        color 0.3s ease, 
        border-color 0.3s ease,
        box-shadow 0.3s ease;
}
.cta-btn i {
    color: var(--kaart);
}
.cta-btn:hover {
    background-color: var(--accent-koud); 
    color: var(--bg);            
    border-color: var(--accent-koud);
    box-shadow: 0 4px 10px rgba(242, 145, 27, 0.4); 
    text-decoration: none;
}
.cta-btn:active {
    background-color: var(--bg); 
    border-color: var(--accent-warm);
    box-shadow: 0 2px 5px rgba(242, 145, 27, 0.6) inset; 
    transform: translateY(1px);
}
.cta-btncbutton:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(242, 145, 27, 0.5); 
}
/* --- onderhoud --- */
.price-box {
    background-color: var(--kaart); 
    border-left: 5px solid var(--accent-warm); 
    border-radius: 6px;
    padding: 15px;
    margin-top: 25px;
}
.price-title {
    color: var(--accent-warm);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.95rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.price-text {
    font-family: 'Inter', sans-serif;
    color: var(--accent-koud); 
    font-size: 0.9rem;
    line-height: 1.6;
}
.price-subtitle {
    font-weight: 700;
    color: var(--text); 
}
.tarieven-disclaimer {
    font-size: 0.75rem;
    color: var(--text);
    font-style: italic;
    text-align: right;
    margin-top: 5px;
}
@media (min-width: 768px) {
    .dark-toggle-pos {
        position: absolute;
        right: 25px;
        top: 50%;
        transform: translateY(-50%);
        margin-top: 0;
        padding-bottom: 0;
    }
    .nav-item.dropdown .dropdown-menu {
        border: 2px solid var(--accent-koud);
        border-top: none;
    }
}