.bgc-calculator {
    font-family: 'Poppins', sans-serif;
    position: relative;
    max-width: 960px;
    margin: 0 auto;
}

/* === Two-column layout === */
.bgc-layout {
    display: flex;
    gap: 0;
    align-items: stretch;
}

.bgc-col-left {
    flex: 1;
    min-width: 0;
    padding: 30px;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px 0 0 8px;
}

.bgc-col-right {
    width: 300px;
    flex-shrink: 0;
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-left: none;
    border-radius: 0 8px 8px 0;
}

.bgc-right-panel {
    padding: 30px 24px;
    position: sticky;
    top: 40px;
}

/* === Main title === */
.bgc-main-title {
    margin: 0 0 20px;
    font-size: 22px;
    color: #333;
    font-weight: 700;
}

/* === Step indicator (dots) === */
.bgc-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 24px;
}

.bgc-step-dot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: #ddd;
    color: #888;
    font-weight: 700;
    font-size: 15px;
    transition: all 0.3s;
}

.bgc-step-dot.bgc-step-active {
    background: #003450;
    color: #fff;
}

.bgc-step-dot.bgc-step-done {
    background: #27ae60;
    color: #fff;
}

.bgc-step-sep {
    width: 40px;
    height: 3px;
    background: #ddd;
    margin: 0 6px;
}

/* === Summary bar (previous selections) === */
.bgc-summary-bar {
    background: #f0f6fc;
    border: 1px solid #c3d4e5;
    border-radius: 6px;
    padding: 8px 14px;
    margin-bottom: 20px;
    font-size: 14px;
    color: #333;
}

/* === Panels === */
.bgc-panel {
    display: none;
}

.bgc-panel-active {
    display: block;
}

.bgc-step-title {
    margin: 0 0 16px;
    font-size: 17px;
    color: #333;
    font-weight: 600;
}

.bgc-hint {
    font-size: 13px;
    color: #999;
    margin: -10px 0 14px;
}

/* === Delivery type selection === */
.bgc-delivery-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}

.bgc-delivery-option {
    cursor: pointer;
}

.bgc-delivery-option input[type="radio"] {
    display: none;
}

.bgc-delivery-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 12px;
    padding: 24px 14px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    transition: all 0.2s;
    background: #fff;
    height: 100%;
}

.bgc-delivery-card:hover {
    border-color: #bbb;
}

.bgc-delivery-option input:checked + .bgc-delivery-card {
    border-color: #003450;
    background: #e8f0f5;
}

.bgc-delivery-icon {
    font-size: 38px;
    line-height: 1;
    flex-shrink: 0;
    color: #666;
}

.bgc-delivery-option input:checked + .bgc-delivery-card .bgc-delivery-icon {
    color: #003450;
}

.bgc-delivery-label {
    font-size: 14px;
    font-weight: 600;
    color: #333;
}

.bgc-delivery-option input:checked + .bgc-delivery-card .bgc-delivery-label {
    color: #003450;
}

/* === Tank selection === */
.bgc-tank-row {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    margin-bottom: 20px;
}

.bgc-tanks {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

.bgc-tank-image {
    width: 300px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bgc-tank-image img {
    max-width: 100%;
    height: auto;
    max-height: 200px;
    object-fit: contain;
}

.bgc-tank-option {
    cursor: pointer;
}

.bgc-tank-option input[type="radio"] {
    display: none;
}

.bgc-tank-card {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px 12px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    transition: all 0.2s;
    text-align: center;
    font-size: 18px;
    font-weight: 700;
    color: #333;
    background: #fff;
}

.bgc-tank-option input:checked + .bgc-tank-card {
    border-color: #003450;
    background: #e8f0f5;
    color: #003450;
}

.bgc-tank-card:hover {
    border-color: #bbb;
}

/* === Postal code === */
.bgc-postal-wrap {
    margin-bottom: 16px;
}

.bgc-postal-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 6px;
}

.bgc-req {
    color: #e74c3c;
    margin-left: 2px;
}

.bgc-input-postal {
    width: 130px;
    padding: 10px 14px;
    font-family: 'Poppins', sans-serif;
    font-size: 18px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    text-align: center;
    letter-spacing: 2px;
    outline: none;
}

.bgc-input-postal:focus {
    border-color: #003450;
}

.bgc-postal-status {
    margin-top: 8px;
    font-size: 14px;
    min-height: 20px;
}

.bgc-status-ok {
    color: #27ae60;
    font-weight: 600;
}

.bgc-status-err {
    color: #e74c3c;
}

.bgc-contact-hint {
    margin-top: 16px;
    padding: 12px 15px;
    background: #f0f6fc;
    border: 1px solid #c3d4e5;
    border-radius: 6px;
    font-size: 14px;
    color: #333;
    line-height: 1.5;
}

.bgc-contact-hint a {
    color: #003450;
    font-weight: 600;
    text-decoration: underline;
}

/* === Fill slider === */
.bgc-fill-section {
    margin-bottom: 24px;
}

.bgc-slider-wrap {
    margin-bottom: 12px;
}

.bgc-slider-row {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.bgc-slider-label-min,
.bgc-slider-label-max {
    font-size: 12px;
    color: #999;
    flex-shrink: 0;
}

.bgc-slider-bar {
    flex: 1;
    height: 12px;
    background: #e0e0e0;
    border-radius: 6px;
    position: relative;
}

.bgc-slider-bar-fill {
    height: 100%;
    width: 0%;
    background: #ffb000;
    border-radius: 6px;
}

.bgc-slider-thumb {
    position: absolute;
    top: 50%;
    left: 0%;
    width: 22px;
    height: 22px;
    background: #003450;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.bgc-slider-value {
    text-align: center;
    font-size: 20px;
    font-weight: 700;
    color: #003450;
    margin-top: 8px;
}

.bgc-slider-hidden {
    display: none;
}

.bgc-fill-info {
    font-size: 13px;
    color: #666;
}

.bgc-fill-info p {
    margin: 4px 0;
}

.bgc-info-min,
.bgc-info-over {
    background: #fdf0ef;
    border: 1px solid #f5c6cb;
    color: #c0392b;
    font-weight: 600;
    font-size: 13px;
    padding: 10px 14px;
    border-radius: 6px;
    margin-top: 8px;
    line-height: 1.5;
}

/* === Mode selection (switch style) === */
.bgc-mode-section {
    margin-bottom: 24px;
}

.bgc-mode-option {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 15px;
    padding: 8px 0;
}

.bgc-mode-option input[type="radio"] {
    display: none;
}

.bgc-switch {
    display: inline-block;
    width: 42px;
    height: 24px;
    background: #ccc;
    border-radius: 12px;
    position: relative;
    transition: background 0.2s;
    flex-shrink: 0;
}

.bgc-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.2s;
}

.bgc-mode-option input:checked + .bgc-switch {
    background: #003450;
}

.bgc-mode-option input:checked + .bgc-switch::after {
    transform: translateX(18px);
}

.bgc-manual-input {
    margin-top: 6px;
    padding-left: 52px;
}

.bgc-manual-input label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
}

.bgc-input-amount {
    width: 160px;
    padding: 10px 14px;
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    outline: none;
}

.bgc-input-amount:focus {
    border-color: #003450;
}

/* === Error === */
.bgc-error {
    padding: 12px 15px;
    background: #fdf0ef;
    color: #e74c3c;
    border-radius: 6px;
    margin-bottom: 15px;
    font-size: 14px;
}

/* === Navigation === */
.bgc-nav {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

.bgc-btn {
    padding: 12px 30px;
    font-family: 'Poppins', sans-serif;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.bgc-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.bgc-btn-next {
    background: #003450;
    color: #fff;
}

.bgc-btn-next:hover:not(:disabled) {
    background: #002640;
}

.bgc-btn-back {
    background: #f0f0f0;
    color: #333;
}

.bgc-btn-back:hover {
    background: #e0e0e0;
}

/* === RIGHT COLUMN styles === */
.bgc-divider {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.bgc-divider-line {
    flex: 1;
    height: 1px;
    background: #ccc;
}

.bgc-divider-text {
    font-size: 12px;
    color: #888;
    text-transform: uppercase;
    white-space: nowrap;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.bgc-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.bgc-detail-row {
    text-align: center;
}

.bgc-detail-row-highlight {
    background: #e8f0f5;
    border-radius: 6px;
    padding: 12px 10px;
    margin: 4px -10px 0;
}

.bgc-detail-label {
    display: block;
    font-size: 11px;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
    font-weight: 600;
}

.bgc-detail-value {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: #333;
}

.bgc-detail-row-highlight .bgc-detail-value {
    font-size: 22px;
    color: #003450;
}

/* === Action buttons (right panel) === */
.bgc-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.bgc-btn-quote {
    width: 100%;
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 700;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    background: #003450;
    color: #fff;
}

.bgc-btn-quote:hover:not(:disabled) {
    background: #002640;
}

.bgc-btn-quote:disabled {
    background: #ccc;
    color: #999;
    cursor: not-allowed;
}

.bgc-btn-contact {
    width: 100%;
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 700;
    border: 2px solid #003450;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    background: #fff;
    color: #003450;
}

.bgc-btn-contact:hover:not(:disabled) {
    background: #002640;
    border-color: #002640;
    color: #fff;
}

.bgc-btn-contact:disabled {
    background: #f0f0f0;
    color: #999;
    border-color: #ccc;
    cursor: not-allowed;
}

.bgc-right-footer {
    font-size: 12px;
    color: #999;
    text-align: center;
    padding-top: 10px;
    border-top: 1px solid #e0e0e0;
}

/* === POPUP OVERLAY === */
.bgc-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    padding: 20px;
}

.bgc-popup {
    background: #fff;
    border-radius: 10px;
    width: 100%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.bgc-popup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    border-bottom: 1px solid #e5e7eb;
    background: #003450;
    border-radius: 10px 10px 0 0;
}

.bgc-popup-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
}

.bgc-popup-close {
    background: none;
    border: none;
    font-size: 26px;
    color: #fff;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.bgc-popup-close:hover {
    opacity: 1;
    background: none !important;
}

.bgc-popup-body {
    padding: 24px;
}

/* Popup summary */
.bgc-popup-summary {
    background: #f8f9fa;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    padding: 14px 18px;
    margin-bottom: 20px;
}

.bgc-popup-summary-row {
    display: flex;
    gap: 6px;
    font-size: 13px;
    color: #666;
    padding: 3px 0;
}

.bgc-popup-summary-row strong {
    color: #333;
}

/* === Form styles === */
.bgc-form-row {
    margin-bottom: 14px;
}

.bgc-form-row > label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: #555;
    margin-bottom: 5px;
}

.bgc-form-row input[type="text"],
.bgc-form-row input[type="email"],
.bgc-form-row input[type="tel"],
.bgc-form-row textarea,
.bgc-form-row select {
    width: 100%;
    padding: 9px 12px;
    font-family: 'Poppins', sans-serif;
    font-size: 13px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
    background: #fff;
}

.bgc-form-row input:focus,
.bgc-form-row textarea:focus,
.bgc-form-row select:focus {
    border-color: #003450;
}

.bgc-form-row textarea {
    resize: vertical;
}

.bgc-form-row-inline {
    display: flex;
    gap: 10px;
}

.bgc-form-col {
    flex: 1;
    min-width: 0;
}

.bgc-input-short {
    width: 120px !important;
    flex-shrink: 0;
}

.bgc-input-wide {
    flex: 1;
    min-width: 0;
}

.bgc-select {
    appearance: auto;
}

/* === Schedule card (date & time picker) === */
.bgc-schedule-card {
    background: #f8fafb;
    border: 1px solid #d6e0e8;
    border-radius: 8px;
    overflow: hidden;
    margin-top: 2px;
}

.bgc-schedule-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: #e8f0f5;
    border-bottom: 1px solid #d6e0e8;
    font-size: 13px;
    font-weight: 600;
    color: #003450;
}

.bgc-schedule-header i {
    font-size: 15px;
    line-height: 1;
}

.bgc-schedule-body {
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.bgc-schedule-field label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: #555;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.bgc-schedule-field label i {
    font-size: 13px;
    color: #003450;
    line-height: 1;
}

.bgc-schedule-field input[type="text"] {
    width: 100%;
    padding: 10px 12px;
    font-family: 'Poppins', sans-serif;
    font-size: 13px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    outline: none;
    transition: all 0.2s;
    box-sizing: border-box;
    background: #fff;
    cursor: pointer;
}

.bgc-schedule-field input[type="text"]:focus {
    border-color: #003450;
    box-shadow: 0 0 0 3px rgba(0, 52, 80, 0.08);
}

.bgc-schedule-note {
    font-size: 11px;
    color: #888;
    margin-top: 4px;
    font-style: italic;
}

.bgc-time-range {
    display: flex;
    align-items: center;
    gap: 10px;
}

.bgc-time-range input[type="text"] {
    flex: 1;
    padding: 10px 12px;
    font-family: 'Poppins', sans-serif;
    font-size: 13px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    outline: none;
    transition: all 0.2s;
    box-sizing: border-box;
    background: #fff;
    cursor: pointer;
}

.bgc-time-range input[type="text"]:focus {
    border-color: #003450;
    box-shadow: 0 0 0 3px rgba(0, 52, 80, 0.08);
}

.bgc-time-sep {
    color: #999;
    font-size: 14px;
    flex-shrink: 0;
}

.bgc-date-hint {
    font-size: 12px;
    color: #e74c3c;
    margin-top: 4px;
}

/* === Flatpickr custom theme === */
.flatpickr-calendar {
    font-family: 'Poppins', sans-serif !important;
    border-radius: 6px !important;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12) !important;
    border: 1px solid #e5e7eb !important;
    overflow: hidden;
    width: 260px !important;
    padding: 0 !important;
}

.flatpickr-innerContainer {
    padding: 4px 6px !important;
}

.flatpickr-months {
    background: #003450 !important;
    height: 32px !important;
}

.flatpickr-months .flatpickr-month {
    background: #003450 !important;
    color: #fff !important;
    height: 32px !important;
}

.flatpickr-current-month {
    font-size: 12px !important;
    font-weight: 600 !important;
    color: #fff !important;
    padding-top: 6px !important;
}

.flatpickr-current-month .flatpickr-monthDropdown-months {
    background: #003450 !important;
    color: #fff !important;
    font-weight: 600 !important;
    font-size: 12px !important;
    appearance: none !important;
    -webkit-appearance: none !important;
}

.flatpickr-current-month input.cur-year {
    color: #fff !important;
    font-weight: 600 !important;
    font-size: 12px !important;
}

.flatpickr-months .flatpickr-prev-month,
.flatpickr-months .flatpickr-next-month {
    fill: #fff !important;
    color: #fff !important;
    padding: 6px 8px !important;
    top: 0 !important;
    height: 32px !important;
}

.flatpickr-months .flatpickr-prev-month svg,
.flatpickr-months .flatpickr-next-month svg {
    fill: #fff !important;
    width: 12px !important;
    height: 12px !important;
}

span.flatpickr-weekday {
    font-family: 'Poppins', sans-serif !important;
    color: #999 !important;
    font-size: 10px !important;
    font-weight: 600 !important;
}

.flatpickr-day {
    font-family: 'Poppins', sans-serif !important;
    font-size: 11px !important;
    font-weight: 500 !important;
    border-radius: 4px !important;
    color: #333 !important;
    max-width: 30px !important;
    height: 28px !important;
    line-height: 28px !important;
    margin: 1px !important;
}

.flatpickr-day:hover {
    background: #e8f0f5 !important;
    border-color: #e8f0f5 !important;
}

.flatpickr-day.selected,
.flatpickr-day.selected:hover {
    background: #003450 !important;
    border-color: #003450 !important;
    color: #fff !important;
}

.flatpickr-day.today {
    border-color: #003450 !important;
}

.flatpickr-day.today:hover {
    background: #003450 !important;
    color: #fff !important;
}

.flatpickr-day.flatpickr-disabled,
.flatpickr-day.flatpickr-disabled:hover {
    color: #d1d5db !important;
    background: transparent !important;
}

.flatpickr-day.prevMonthDay,
.flatpickr-day.nextMonthDay {
    color: #d1d5db !important;
}

/* Flatpickr time picker */
.flatpickr-calendar.hasTime .flatpickr-time {
    border-top: 1px solid #e5e7eb !important;
    height: 34px !important;
    max-height: 34px !important;
}

.flatpickr-time input {
    font-family: 'Poppins', sans-serif !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    color: #003450 !important;
}

.flatpickr-time .flatpickr-am-pm {
    display: none !important;
}

.flatpickr-time .flatpickr-time-separator {
    font-weight: 600 !important;
    color: #003450 !important;
}

.flatpickr-time .numInputWrapper span.arrowUp,
.flatpickr-time .numInputWrapper span.arrowDown {
    border: none !important;
}

.flatpickr-time .numInputWrapper span.arrowUp:after {
    border-bottom-color: #003450 !important;
}

.flatpickr-time .numInputWrapper span.arrowDown:after {
    border-top-color: #003450 !important;
}

.bgc-phone-hint {
    font-size: 12px;
    color: #e74c3c;
    margin: -8px 0 14px;
}

/* === Radio cards (contact type + reply type) === */
.bgc-contact-types,
.bgc-reply-types {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 4px;
}

.bgc-contact-type-option,
.bgc-reply-option {
    cursor: pointer;
}

.bgc-contact-type-option input[type="radio"],
.bgc-reply-option input[type="radio"] {
    display: none;
}

.bgc-contact-type-card,
.bgc-reply-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 8px;
    padding: 16px 14px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    color: #555;
    transition: all 0.2s;
}

.bgc-contact-type-card:hover,
.bgc-reply-card:hover {
    border-color: #9ca3af;
}

.bgc-contact-type-option input:checked + .bgc-contact-type-card,
.bgc-reply-option input:checked + .bgc-reply-card {
    border-color: #003450;
    background: #f0f6fc;
    color: #003450;
    font-weight: 600;
}

.bgc-contact-type-card .fi,
.bgc-reply-card .fi {
    font-size: 18px;
    line-height: 1;
}

/* === Custom checkbox (consent) === */
.bgc-consent-row {
    margin-top: 18px;
    margin-bottom: 18px;
}

.bgc-checkbox-label {
    display: flex !important;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    font-weight: 400 !important;
}

.bgc-checkbox-label input[type="checkbox"] {
    display: none;
}

.bgc-checkbox-box {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid #d1d5db;
    border-radius: 4px;
    flex-shrink: 0;
    position: relative;
    transition: all 0.2s;
    margin-top: 1px;
}

.bgc-checkbox-box::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 5px;
    width: 5px;
    height: 9px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    opacity: 0;
    transition: opacity 0.15s;
}

.bgc-checkbox-label input:checked + .bgc-checkbox-box {
    background: #003450;
    border-color: #003450;
}

.bgc-checkbox-label input:checked + .bgc-checkbox-box::after {
    opacity: 1;
}

.bgc-checkbox-text {
    font-size: 12px;
    line-height: 1.5;
    color: #666;
    font-weight: normal;
}

/* Form error & success */
.bgc-form-error {
    padding: 10px 14px;
    background: #fdf0ef;
    border: 1px solid #f5c6cb;
    color: #e74c3c;
    border-radius: 6px;
    margin-bottom: 14px;
    font-size: 13px;
    font-weight: 500;
}

.bgc-form-success {
    padding: 10px 14px;
    background: #eafaf1;
    border: 1px solid #a3d9b1;
    color: #27ae60;
    border-radius: 6px;
    margin-bottom: 14px;
    font-size: 13px;
    font-weight: 500;
}

.bgc-btn-submit {
    width: 100%;
    padding: 13px 20px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    background: #003450;
    color: #fff;
}

.bgc-btn-submit:hover:not(:disabled) {
    background: #002640;
}

.bgc-btn-submit:disabled {
    background: #999;
    cursor: not-allowed;
}

/* === Loading overlay === */
.bgc-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    z-index: 10;
}

.bgc-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e0e0e0;
    border-top-color: #003450;
    border-radius: 50%;
    animation: bgc-spin 0.8s linear infinite;
}

@keyframes bgc-spin {
    to { transform: rotate(360deg); }
}

/* === Responsive === */
@media (max-width: 768px) {
    .bgc-layout {
        flex-direction: column;
    }

    .bgc-col-left {
        border-radius: 8px 8px 0 0;
    }

    .bgc-col-right {
        width: 100%;
        border-left: 1px solid #e0e0e0;
        border-top: none;
        border-radius: 0 0 8px 8px;
    }

    .bgc-right-panel {
        position: static;
    }

    .bgc-popup {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .bgc-delivery-options {
        grid-template-columns: 1fr;
    }

    .bgc-col-left {
        padding: 20px 16px;
    }

    .bgc-right-panel {
        padding: 20px 16px;
    }

    .bgc-tank-row {
        flex-direction: column;
    }

    .bgc-tank-image {
        width: 100%;
    }

    .bgc-main-title {
        font-size: 18px;
    }

    .bgc-nav {
        flex-direction: column;
    }

    .bgc-btn {
        width: 100%;
        text-align: center;
    }

    .bgc-manual-input {
        padding-left: 0;
    }

    .bgc-contact-types {
        grid-template-columns: 1fr;
    }

    .bgc-form-row-inline {
        flex-direction: column;
    }

    .bgc-input-short {
        width: 100% !important;
    }

    .bgc-popup-body {
        padding: 18px 16px;
    }

    .bgc-schedule-body {
        padding: 12px;
    }

    .bgc-schedule-header {
        padding: 8px 12px;
    }
}