:root {
    --fa-zk-primary: #FD5F3F;
    --fa-zk-primary-hover: #e54a2d;
    --fa-zk-primary-light: rgba(253, 95, 63, 0.1);
    --fa-zk-dark: #000E43;
    --fa-zk-success: #0b6e64;
    --fa-zk-error: #e02424;
    --fa-zk-text: #1a1a2e;
    --fa-zk-text-light: #6b7280;
    --fa-zk-bg: #ffffff;
    --fa-zk-bg-light: #f8f8fc;
    --fa-zk-border: #e8e8f0;
    --fa-zk-border-focus: #FD5F3F;
    --fa-zk-radius: 4px;
    --fa-zk-font: inherit;
    --fa-zk-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.fa-zk {
    color: var(--fa-zk-text);
    font-family: var(--fa-zk-font);
}

.fa-zk__form,
.fa-zk__success {
    background: var(--fa-zk-bg);
    border: 1px solid var(--fa-zk-border);
    border-radius: var(--fa-zk-radius);
    box-shadow: var(--fa-zk-shadow);
    padding: 1.5rem;
}

/* === Progress bar === */
.fa-zk__progress {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--fa-zk-border);
}

.fa-zk__progress-item {
    background: transparent;
    border: 0;
    color: var(--fa-zk-text-light);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font: inherit;
    font-weight: 500;
    padding: 0;
    cursor: default;
}

.fa-zk__progress-item span {
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--fa-zk-dark);
    background: var(--fa-zk-bg);
    color: var(--fa-zk-dark);
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.fa-zk__progress-item.is-complete span {
    background: var(--fa-zk-dark);
    border-color: var(--fa-zk-dark);
    color: #fff;
}

.fa-zk__progress-item.is-active span {
    background: var(--fa-zk-primary);
    border-color: var(--fa-zk-primary);
    color: #fff;
}

.fa-zk__progress-item.is-active {
    color: var(--fa-zk-text);
}

/* === Messages === */
.fa-zk__message {
    display: none;
    margin-bottom: 1rem;
    padding: 0.875rem 1rem;
    border-radius: var(--fa-zk-radius);
    background: #fff4f4;
    border: 1px solid rgba(224, 36, 36, 0.25);
    color: var(--fa-zk-error);
    font-size: 0.9rem;
}

.fa-zk__message.is-visible {
    display: block;
}

/* === Steps === */
.fa-zk__step {
    display: none;
}

.fa-zk__step.is-active {
    display: block;
}

/* Inactive steps: off-screen so inputs stay in FormData */
.fa-zk__step.is-inactive {
    position: absolute;
    left: -9999px;
    top: -9999px;
    visibility: hidden;
    pointer-events: none;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* === Grid layouts === */
.fa-zk__grid {
    display: grid;
    gap: 1rem;
}

.fa-zk__grid--two {
    grid-template-columns: 1fr 1fr;
}

/* === Form fields === */
.fa-zk__field {
    margin-bottom: 1rem;
}

.fa-zk__field label,
.fa-zk__fieldset legend {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--fa-zk-text);
}

.fa-zk__field input[type="text"],
.fa-zk__field input[type="email"],
.fa-zk__field input[type="tel"],
.fa-zk__field input[type="url"],
.fa-zk__field input[type="number"],
.fa-zk__field select,
.fa-zk__field textarea {
    width: 100%;
    border: 1px solid var(--fa-zk-border);
    border-radius: var(--fa-zk-radius);
    padding: 0.875rem 1rem;
    background: var(--fa-zk-bg);
    color: var(--fa-zk-text);
    font: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.fa-zk__field input:focus,
.fa-zk__field select:focus,
.fa-zk__field textarea:focus {
    outline: none;
    border-color: var(--fa-zk-border-focus);
    box-shadow: 0 0 0 3px rgba(253, 95, 63, 0.15);
}

.fa-zk__fieldset {
    border: 0;
    margin: 0;
    padding: 0;
}

/* === Choice cards/chips (checkboxes & radios) === */
.fa-zk__choices {
    display: grid;
    gap: 0.5rem;
}

.fa-zk__choices--scroll {
    max-height: 15rem;
    overflow-y: auto;
    padding-right: 0.25rem;
}

.fa-zk__choice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    border: 1px solid var(--fa-zk-border);
    border-radius: var(--fa-zk-radius);
    padding: 0.625rem 0.875rem;
    background: var(--fa-zk-bg);
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: center;
}

.fa-zk__choice:hover {
    border-color: var(--fa-zk-primary);
    background: var(--fa-zk-bg-light);
}

.fa-zk__choice input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0;
    height: 0;
}

.fa-zk__choice span {
    font-weight: 500;
    color: var(--fa-zk-text);
    transition: color 0.15s ease;
}

.fa-zk__choice:has(input:checked) {
    background: var(--fa-zk-primary-light);
    border-color: var(--fa-zk-primary);
}

.fa-zk__choice:has(input:checked) span {
    color: var(--fa-zk-primary);
    font-weight: 600;
}

.fa-zk__choice.is-disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.fa-zk__choice.is-disabled:hover {
    border-color: var(--fa-zk-border);
    background: var(--fa-zk-bg);
}

/* === Privacy checkbox === */
.fa-zk__field--checkbox label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-weight: 400;
    cursor: pointer;
}

.fa-zk__field--checkbox input {
    margin-top: 0.25rem;
    width: 1.125rem;
    height: 1.125rem;
    accent-color: var(--fa-zk-primary);
    cursor: pointer;
}

/* === Error states === */
.fa-zk__error {
    color: var(--fa-zk-error);
    min-height: 1.2rem;
    margin: 0.5rem 0 0;
    font-size: 0.875rem;
}

.fa-zk__field.is-invalid input,
.fa-zk__field.is-invalid select,
.fa-zk__field.is-invalid textarea,
.fa-zk__field.is-invalid .fa-zk__choice {
    border-color: var(--fa-zk-error);
}

/* === Action buttons === */
.fa-zk__actions {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--fa-zk-border);
}

.fa-zk__button {
    appearance: none;
    border: 0;
    border-radius: var(--fa-zk-radius);
    background: var(--fa-zk-primary);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
    padding: 0.875rem 1.5rem;
    transition: background 0.2s ease, transform 0.1s ease;
}

.fa-zk__button:hover,
.fa-zk__button:focus {
    background: var(--fa-zk-primary-hover);
}

.fa-zk__button:active {
    transform: translateY(1px);
}

.fa-zk__button[hidden] {
    display: none;
}

.fa-zk__button[disabled] {
    cursor: not-allowed;
    opacity: 0.65;
}

.fa-zk__button--secondary {
    background: var(--fa-zk-bg);
    color: var(--fa-zk-dark);
    border: 2px solid var(--fa-zk-dark);
}

.fa-zk__button--secondary:hover,
.fa-zk__button--secondary:focus {
    background: var(--fa-zk-bg-light);
}

/* === Success state === */
.fa-zk__success {
    border-color: rgba(11, 110, 100, 0.2);
    background: rgba(11, 110, 100, 0.05);
}

.fa-zk__success h3 {
    color: var(--fa-zk-success);
    margin-top: 0;
}

/* === Admin notes & empty states === */
.fa-zk-empty,
.fa-zk-admin-note {
    color: var(--fa-zk-text-light);
}

/* === Section titles === */
.fa-zk__section-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin: 1.5rem 0 0.75rem;
    color: var(--fa-zk-dark);
    border-bottom: 2px solid var(--fa-zk-border);
    padding-bottom: 0.5rem;
}

.fa-zk__hint {
    font-size: 0.875rem;
    color: var(--fa-zk-text-light);
    margin: 0 0 0.5rem;
}

/* === Extended grid layouts === */
.fa-zk__grid--three {
    display: grid;
    grid-template-columns: 2fr 1fr 2fr;
    gap: 1rem;
}

.fa-zk__row--two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

/* === Places chips grid === */
.fa-zk__choices--places {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    max-height: none;
    overflow: visible;
}

.fa-zk__choices--places .fa-zk__choice {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
}

/* === Property type checkboxes grid === */
.fa-zk__choices--grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

/* === Responsive styles === */
@media (max-width: 768px) {
    /* Wrapper */
    .fa-zk {
        scroll-margin-top: 12px;
    }

    .fa-zk__form,
    .fa-zk__success {
        padding: 1.25rem 1rem;
        border-radius: 8px;
    }

    /* Progressiebalk — compact horizontaal */
    .fa-zk__progress {
        flex-direction: row;
        gap: 0;
        justify-content: stretch;
        border-radius: 8px;
        overflow: hidden;
        border: 1px solid var(--fa-zk-border);
        margin-bottom: 1.5rem;
    }

    .fa-zk__progress-item {
        flex: 1;
        flex-direction: column;
        gap: 0.15rem;
        font-size: 0.68rem;
        padding: 0.6rem 0.25rem;
        border-radius: 0;
        border: none;
        border-right: 1px solid var(--fa-zk-border);
        background: var(--fa-zk-bg-light);
        color: var(--fa-zk-text-light);
    }

    .fa-zk__progress-item:last-child {
        border-right: none;
    }

    .fa-zk__progress-item.is-active {
        background: var(--fa-zk-primary);
        color: #fff;
    }

    .fa-zk__progress-item.is-complete {
        background: rgba(253,95,63,0.1);
        color: var(--fa-zk-primary);
    }

    .fa-zk__progress-item span {
        width: 1.5rem;
        height: 1.5rem;
        font-size: 0.75rem;
        margin: 0 auto;
    }

    /* Grid → single column */
    .fa-zk__grid--two,
    .fa-zk__grid--three,
    .fa-zk__row--two {
        grid-template-columns: 1fr;
    }

    /* Velden */
    .fa-zk__field label {
        font-size: 0.85rem;
    }

    .fa-zk__field input,
    .fa-zk__field select,
    .fa-zk__field textarea {
        font-size: 1rem; /* Voorkom iOS zoom */
        min-height: 48px; /* Touch target */
    }

    /* Section titles */
    .fa-zk__section-title {
        font-size: 0.9rem;
        margin-top: 1.25rem;
        margin-bottom: 0.5rem;
    }

    /* Chips */
    .fa-zk__choices--places {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }

    .fa-zk__choices--grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }

    .fa-zk__choice {
        padding: 0.6rem 0.5rem;
        font-size: 0.82rem;
        min-height: 44px;
    }

    /* Slider */
    .fa-zk__price-display {
        font-size: 1rem;
    }

    .fa-zk__range-track input[type="range"]::-webkit-slider-thumb {
        width: 28px;
        height: 28px; /* Groter touch target */
    }

    /* Knoppen */
    .fa-zk__actions {
        flex-direction: column-reverse;
        gap: 0.75rem;
        margin-top: 1.5rem;
    }

    .fa-zk__button {
        width: 100%;
        text-align: center;
        min-height: 52px; /* Grote touch target */
        font-size: 1rem;
    }

    /* Privacy */
    .fa-zk__privacy {
        font-size: 0.82rem;
    }
}

/* ===== PRICE RANGE SLIDER ===== */
.fa-zk__price-slider {
    margin-bottom: 1rem;
}

.fa-zk__price-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--fa-zk-dark);
    margin-bottom: 1.25rem;
}

.fa-zk__price-sep {
    color: var(--fa-zk-border);
}

.fa-zk__range-track {
    position: relative;
    height: 6px;
    background: var(--fa-zk-border);
    border-radius: 3px;
    margin: 1.5rem 0 0.75rem;
}

.fa-zk__range-fill {
    position: absolute;
    height: 100%;
    background: var(--fa-zk-primary);
    border-radius: 3px;
    pointer-events: none;
    left: 0%;
    right: 62.5%;
}

.fa-zk__range-track input[type="range"] {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    height: 100%;
    background: transparent;
    -webkit-appearance: none;
    appearance: none;
    pointer-events: none;
    margin: 0;
    padding: 0;
    border: none;
    outline: none;
}

.fa-zk__range-track input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid var(--fa-zk-primary);
    box-shadow: 0 2px 6px rgba(253, 95, 63, 0.3);
    cursor: pointer;
    pointer-events: all;
    transition: transform 0.15s, box-shadow 0.15s;
}

.fa-zk__range-track input[type="range"]::-webkit-slider-thumb:hover,
.fa-zk__range-track input[type="range"]:focus::-webkit-slider-thumb {
    transform: scale(1.15);
    box-shadow: 0 3px 10px rgba(253, 95, 63, 0.45);
}

.fa-zk__range-track input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid var(--fa-zk-primary);
    box-shadow: 0 2px 6px rgba(253, 95, 63, 0.3);
    cursor: pointer;
    pointer-events: all;
}

.fa-zk__price-steps {
    display: flex;
    justify-content: space-between;
    font-size: 0.72rem;
    color: var(--fa-zk-text-light);
    margin-top: 0.5rem;
}