/* No bottom padding needed, override global rule */
.page-build .content-area {
    padding-bottom: 0;
    background: #f3f5f8;
}

.build-page-header {
    background-image: url("../img/zippy_straight_trailer_01.png");
    background-position: center 55%;
}


/* =====================================================
   Build Section Layout
===================================================== */

.page-build .build-section {
    width: 100%;
    padding: 40px 24px 24px;
    box-sizing: border-box;
}

.page-build .build-section-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.page-build .build-section-header {
    max-width: 760px;
    margin: 0 auto 24px;
    text-align: center;
}

.page-build .build-section-header h2 {
    margin: 0 0 10px;
    font-size: 38px;
    line-height: 1.2;
    font-weight: 750;
    color: #1a3f74;
}

.page-build .build-section-header p {
    margin: 0;
    font-size: 17px;
    line-height: 1.65;
    color: #374151;
}

.page-build .build-section-panel {
    max-width: 980px;
    margin: 0 auto;
    padding: 34px 36px 38px;
    border-radius: 14px;
    background: #fdfdfd;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    box-sizing: border-box;
}


/* =====================================================
   Section Panel Dividers & Spacing
===================================================== */

/* ---- Core Panel Spacing ---- */

/* Standard dividers between direct panel items */
.page-build .build-section-panel > .build-row + .build-row,
.page-build .build-section-panel > .build-option-group + .build-row,
.page-build .build-section-panel > .build-section-block + .build-row,
.page-build .build-section-panel > .build-section-block + .build-section-block {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #e5e7eb;
}

/* Hidden B-train block skipped between direct panel rows */
.page-build .build-section-panel > .build-section-block.is-hidden + .build-row {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #e5e7eb;
}

/* ---- Grouped Sections (e.g., QDTS Options) ---- */

/* Space between groups (no divider line) */
.page-build .build-section-panel > .build-section-group + .build-section-group {
    margin-top: 20px;
    padding-top: 20px;
}

/* Standard dividers between direct items inside a group */
.page-build .build-section-group > .build-row + .build-row,
.page-build .build-section-group > .build-row + .build-option-group,
.page-build .build-section-group > .build-option-group + .build-row,
.page-build .build-section-group > .build-option-group + .build-option-group,
.page-build .build-section-group > .build-row + .build-section-block,
.page-build .build-section-group > .build-section-block + .build-option-group,
.page-build .build-section-group > .build-section-block + .build-section-block {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #e5e7eb;
}

/* Hidden B-train blocks skipped between grouped items */
.page-build .build-section-group > .build-section-block.is-hidden + .build-row,
.page-build .build-section-group > .build-section-block.is-hidden + .build-option-group {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #e5e7eb;
}

/* Hidden regular options skipped before visible B-train blocks */
.page-build .build-section-group > .build-option-group.is-hidden + .build-section-block,
.page-build .build-section-group > .build-option-group.is-hidden + .build-option-group.is-hidden + .build-section-block {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #e5e7eb;
}

/* No divider for first item after a group heading */
.page-build .build-section-heading + * {
    margin-top: 20px;
    padding-top: 0;
    border-top: none;
}

/* ---- Submenus ---- */

/* Spacing after parent option */
.page-build .build-option-group > .build-submenu-row,
.page-build .build-option-group > .build-section-block {
    margin-top: 15px;
}

/* Divider between submenu rows */
.page-build .build-section-block > .build-submenu-row + .build-submenu-row {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #e5e7eb;
}


/* =====================================================
   Rows, Labels, & Headings
===================================================== */

/* Base row style */
.page-build .build-row {
    display: flex;
    align-items: center;
    gap: 24px;
}

.page-build .build-section-label {
    width: 200px;
    flex: 0 0 220px;
    margin: 0;
    font-size: 17px;
    font-weight: 650;
    line-height: 1.4;
    color: #111827;
}

.page-build .build-section-label-block {
    width: auto;
    flex: none;
    margin-bottom: 14px;
}

/* Section-style headings inside panels */
.page-build .build-section-heading {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 20px;
    font-weight: 700;
    color: #1a3f74;
}

.page-build .build-section-heading::after {
    content: "";
    flex: 1;
    height: 2px;
    background: #d1d5db;
}


/* =====================================================
   Toggle Pills
===================================================== */

.page-build .build-toggle-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.page-build .build-toggle-group input[type="checkbox"],
.page-build .build-toggle-group input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.page-build .build-toggle-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 180px;
    padding: 12px 20px;
    border: 1px solid #cfcfcf;
    border-radius: 999px;
    background: #ffffff;
    color: #1f2937;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-build .build-toggle-group input:checked + .build-toggle-pill {
    border-color: #1a3f74;
    background: #1a3f74;
    color: #ffffff;
}

/* Compact group spacing */
.page-build .build-toggle-group-sm {
    gap: 8px;
}

/* Compact sizing inside submenu rows */
.page-build .build-submenu-row .build-toggle-group-sm .build-toggle-pill {
    min-width: 110px;
    padding: 8px 12px;
    font-size: 14px;
    white-space: nowrap;
}


/* =====================================================
   Build Choice Cards
===================================================== */

.page-build .build-choice-grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.page-build .build-choice-input {
    position: fixed;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.page-build .build-choice-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 20px 20px 18px;
    border: 1px solid #d9e0e7;
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
    box-sizing: border-box;
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

/* Use border to distinguish checked selection */
.page-build .build-choice-input:checked + .build-choice-card {
    border-color: #1a3f74;
    box-shadow: 0 0 0 2px rgba(26, 63, 116, 0.10), 0 10px 24px rgba(0, 0, 0, 0.08);
}

.page-build .build-choice-image-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 180px;
    margin-bottom: 16px;
}

.page-build .build-choice-image {
    max-width: 100%;
    max-height: 160px;
    display: block;
    object-fit: contain;
}

.page-build .build-choice-content {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.page-build .build-choice-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 8px;
    font-size: 22px;
    line-height: 1.2;
    font-weight: 750;
    color: #1a3f74;
}

.page-build .build-choice-description {
    margin: 0 0 14px;
    font-size: 15px;
    line-height: 1.6;
    color: #4b5563;
}


/* =====================================================
   Build Cards Links and Tags
===================================================== */

.page-build .build-choice-links {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.page-build .build-choice-link {
    padding: 0;
    border: none;
    background: none;
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    color: #1a3f74;
    cursor: pointer;
    text-decoration: none;
}

.page-build .build-choice-divider {
    height: 1px;
    margin: 0 0 14px;
    background: #e5e7eb;
}

.page-build .build-choice-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.page-build .build-choice-meta-item {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: #f3f5f8;
    font-size: 13px;
    line-height: 1.2;
    font-weight: 600;
    color: #374151;
}


/* =====================================================
   Build Card Selected Indicator (with checkmark)
===================================================== */

.page-build .build-choice-indicator {
    width: 18px;
    height: 18px;
    border: 2px solid #cfcfcf;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.page-build .build-choice-indicator::after {
    content: "\2714";
    color: #ffffff;
    font-size: 12px;
    font-weight: 700;
    line-height: 1;
    transform: scale(0);
    transition: transform 0.2s ease;
}

.page-build .build-choice-input:checked + .build-choice-card .build-choice-indicator {
    border-color: #1a3f74;
    background: #1a3f74;
}

.page-build .build-choice-input:checked + .build-choice-card .build-choice-indicator::after {
    transform: scale(1);
}


/* =====================================================
   Input Fields
===================================================== */

.page-build .build-quantity-field,
.page-build .build-slider-field,
.page-build .build-select-field {
    flex: 1;
    min-width: 0;
}

.page-build .build-quantity-field input[type="number"] {
    width: 160px;
    max-width: 100%;
    padding: 10px 12px;
    border: 1px solid #cfcfcf;
    border-radius: 6px;
    background: #ffffff;
    font-size: 16px;
    font-family: inherit;
    box-sizing: border-box;
}

.page-build .build-slider-field {
    display: flex;
    align-items: center;
    gap: 16px;
}

.page-build .build-range-input {
    flex: 1;
    min-width: 0;
    accent-color: #1a3f74;
}

.page-build .build-range-value {
    min-width: 60px;
    font-size: 19px;
    font-weight: 750;
    color: #1a3f74;
    text-align: left;
    order: -1;
}

.page-build .build-select {
    min-width: 160px;
    max-width: 100%;
    padding: 10px 12px;
    border: 1px solid #cfcfcf;
    border-radius: 6px;
    background: #ffffff;
    font-size: 16px;
    font-family: inherit;
    box-sizing: border-box;
    cursor: pointer;
}

/* ------ Colour Box ------ */
.build-select-field-with-swatch {
    display: flex;
    align-items: center;
    gap: 15px;
}

.build-colour-swatch {
    width: 24px;
    height: 24px;
    border: 1px solid #cfcfcf;
    border-radius: 6px;
    flex: 0 0 24px;
}

.page-build .build-button-group {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}


/* =====================================================
   Submenu Rows
===================================================== */

/* Single-row submenu */
.page-build .build-option-group > .build-submenu-row {
    padding: 8px 0 8px 18px;
    border-left: 3px solid #a51b25;
}

/* Multi-row submenu block */
.page-build .build-option-group > .build-section-block {
    padding: 10px 0 10px 18px;
    border-left: 3px solid #a51b25;
}

/* Rows inside multi-row submenu blocks */
.page-build .build-section-block > .build-submenu-row {
    padding: 8px 0;
    border-left: none;
}

/* Divider between rows inside multi-row submenu blocks */
.page-build .build-section-block > .build-submenu-row + .build-submenu-row {
    margin-top: 8px;
    padding-top: 16px;
    border-top: 1px solid #e5e7eb;
}

.page-build .build-section-label.build-submenu-label {
    font-size: 16px;
    color: #4b5563;
}

.page-build .build-submenu-heading {
    font-size: 15px;
    font-weight: 600;
    color: #4b5563;
}

.page-build .build-submenu-row .build-toggle-pill {
    min-width: 140px;
    padding: 8px 16px;
    font-size: 14px;
}

.page-build .build-submenu-row .build-quantity-field input[type="number"] {
    width: 130px;
    padding: 8px 10px;
    font-size: 14px;
}


/* =====================================================
   B-Train Option Layout
===================================================== */

/* Two-column layout for larger B-Train option groups */
.page-build .build-btrain-columns {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 36px;
}

.page-build .build-btrain-column {
    min-width: 0;
}

.page-build .build-subsection-title {
    margin: 0;
    font-size: 16px;
    font-weight: 700;
    color: #a51b25;
}


/* =====================================================
   Section-Specific Overrides
===================================================== */

/* ------ Tarp Vehicle Section ------ */
.page-build #tarp-vehicle-section .build-section-inner {
    max-width: 1400px;
}

.page-build #tarp-vehicle-section .build-section-panel {
    max-width: 1320px;
}

.page-build #tarp-vehicle-section .build-choice-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* ------ Tarp Options Section ------ */
.page-build #tarp-options-section .build-section-inner {
    max-width: 1400px;
}

.page-build #tarp-options-section .build-section-panel {
    max-width: 1320px;
}


/* =====================================================
   Visibility Helpers
===================================================== */

.page-build .is-hidden {
    display: none;
}


/* =====================================================
   Media Queries
===================================================== */

@media (max-width: 899px) {

    /* ---- Section Layout ---- */

    .page-build .build-section {
        padding: 28px 16px 20px;
    }

    .page-build .build-section-panel {
        padding: 24px 18px;
    }

    .page-build .build-section-header h2 {
        font-size: 28px;
    }

    .page-build .build-section-header p {
        font-size: 15px;
    }

    /* Rows & Labels */

    .page-build .build-row {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .page-build .build-section-label {
        width: 100%;
        flex: none;
        font-size: 16px;
    }

    /* Quantity row stays horizontal */
    .page-build #quantity-row {
        flex-direction: row;
        align-items: center;
    }

    .page-build #quantity-row .build-section-label {
        width: auto;
        flex: 0 0 auto;
    }

    .page-build #quantity-row .build-quantity-field {
        flex: 1;
        display: flex;
        justify-content: flex-end;
    }

    .page-build #quantity-row input {
        width: 120px;
    }

    /* ---- Toggle Groups ---- */

    .page-build .build-toggle-group {
        gap: 8px;
    }

    .page-build .build-toggle-pill {
        min-width: 0;
        flex: 1 1 auto;
        padding: 10px 12px;
        font-size: 14px;
    }

    /* Submenu toggle groups bound to one row */
    .page-build .build-submenu-row .build-toggle-group {
        flex-wrap: nowrap;
        gap: 6px;
    }

    .page-build .build-submenu-row .build-toggle-pill {
        flex: 1 1 0;
        min-width: 0;
        padding: 8px 6px;
        font-size: 13px;
        white-space: nowrap;
    }

    /* ---- Buttons ---- */

    .page-build .build-button-group {
        flex-direction: column;
        gap: 10px;
    }

    .page-build .build-button-group .btn {
        width: 100%;
    }

    /* ---- Inputs ---- */

    .page-build .build-quantity-field input,
    .page-build .build-select {
        width: 100%;
    }

    .page-build .build-slider-field {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .page-build .build-range-value {
        order: 0;
        text-align: left;
    }

    /* ---- Build Choice Cards (Vehicle & Platform Type Selection) ---- */

    .page-build .build-choice-grid,
    .page-build #tarp-vehicle-section .build-choice-grid {
        grid-template-columns: 1fr;
    }

    .page-build .build-choice-title {
        font-size: 18px;
    }

    /* ---- B-Train Layout ---- */

    .page-build .build-btrain-columns {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* ---- Submenus ---- */

    .page-build .build-option-group > .build-submenu-row {
        padding-left: 12px;
    }

    .page-build .build-option-group > .build-section-block {
        padding-left: 12px;
    }

    /* ---- Panel Spacing ---- */

    .page-build .build-section-panel > * + * {
        margin-top: 18px;
        padding-top: 18px;
    }
}


/* =====================================================
   Hover Interactions
===================================================== */

@media (hover: hover) and (pointer: fine) {
    .page-build .build-toggle-pill:hover {
        border-color: #1a3f74;
        color: #1a3f74;
    }

    .page-build .build-toggle-group input:checked + .build-toggle-pill:hover {
        color: #ffffff;
    }

    .page-build .build-choice-card:hover {
        border-color: #1a3f74;
        box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
        transform: translateY(-1px);
    }

    .page-build .build-choice-link:hover {
        text-decoration: underline;
    }

    .page-build .build-quantity-field input[type="number"]:hover,
    .page-build .build-select:hover {
        border-color: #1a3f74;
    }
}


/* =====================================================
   Focus States
===================================================== */

.page-build .build-quantity-field input[type="number"]:focus,
.page-build .build-select:focus {
    outline: none;
    border-color: #1a3f74;
    box-shadow: 0 0 0 2px rgba(26, 63, 116, 0.15);
}