/* ==========================================================================
   ARCHITECTURAL LAYOUT STYLES FOR THE PREMIUM INVERTED CHECKOUT SYSTEM
   ========================================================================== */

.checkout-master-section {
    padding: 50px 0 100px 0;
    background-color: #ffffff; /* Clean white primary surface mapping */
}

.checkout-master-container {
    display: grid;
    grid-template-columns: 1fr 420px; /* Asymmetrical layouts prioritizing entries with precise sidebar balance */
    gap: 40px;
    align-items: flex-start;
}

/* --- Utility Helper Alignment Classes --- */
.mb-24 { margin-bottom: 24px; }
.mb-40 { margin-bottom: 40px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.font-bold { font-weight: 700 !important; }

/* ==========================================================================
   📦 PREMIUM WHITE SECTION CONTAINERS FRAME DESIGNS
   ========================================================================== */
.checkout-card-wrapper,
.summary-card-wrapper {
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 20px; /* High-end heavy rounded parameters matched to system specs */
    overflow: hidden;
}

.checkout-card-header,
.summary-card-header {
    background-color: #f9fafb;
    padding: 20px 24px;
    border-bottom: 1px solid #e5e7eb;
}

.checkout-card-title,
.summary-section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-black);
    letter-spacing: -0.3px;
    margin-bottom: 10px;
}

.checkout-card-body {
    padding: 24px;
}

/* --- Flexible Field Grids Core Setup --- */
.checkout-form-grid {
    display: grid;
    gap: 16px;
}
.checkout-form-grid.col-2 { grid-template-columns: repeat(2, 1fr); }
.checkout-form-grid.col-4 { grid-template-columns: repeat(4, 1fr); }

/* --- Forms Inner Fields Redesigns --- */
.checkout-card-body .form-field-wrapper,
.checkout-card-body .select-field-custom-wrapper select {
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px; /* Apple-minimalist frame specifications */
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.checkout-card-body .form-field-wrapper input,
.checkout-card-body .form-field-wrapper textarea {
    font-family: 'Raleway', sans-serif;
    color: var(--primary-black);
    font-size: 14px;
    font-weight: 500;
}

/* Input validation glows mapping extracted gold highlights */
.checkout-card-body .form-field-wrapper:focus-within {
    border-color: var(--gold-border);
    box-shadow: 0 0 10px rgba(163, 127, 51, 0.12);
}

.checkout-card-body .select-field-custom-wrapper select {
    width: 100%;
    padding: 12px 16px;
    outline: none;
    border-radius: 12px;
}

.login-footer-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
}

.account-prompt-txt {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.gold-link {
    color: var(--text-gold-muted);
    font-weight: 600;
    transition: color 0.2s ease;
}
.gold-link:hover { color: var(--dark-gold); }

/* --- Atomic Action Buttons Elements --- */
.premium-checkout-btn-small {
    background-color: var(--surface-dark);
    color: var(--bright-gold);
    border: none;
    padding: 10px 24px;
    border-radius: 20px;
    font-family: 'Raleway', sans-serif;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}
.premium-checkout-btn-small:hover {
    background: var(--gradient-gold-linear);
    color: #000000;
}

.checkout-segment-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.segment-group-title {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

/* Options Alignment Matrices */
.checkbox-options-flex,
.radio-options-flex {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 24px;
}

/* ==========================================================================
   🌟 PREMIUM CUSTOM RADIO BUTTONS STYLES
   ========================================================================== */
.custom-radio-row {
    display: flex;
    align-items: center;
    cursor: pointer;
    position: relative;
    user-select: none;
}

.custom-radio-row input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.radio-dot {
    width: 18px;
    height: 18px;
    background-color: #ffffff;
    border: 1px solid #d1d5db;
    border-radius: 50%;
    margin-right: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.custom-radio-row:hover input ~ .radio-dot {
    border-color: var(--gold-border);
}

.custom-radio-row input:checked ~ .radio-dot {
    border-color: var(--gold-border);
    background-color: #ffffff;
}

.radio-dot::after {
    content: "";
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--gradient-gold-linear);
    display: none;
}

.custom-radio-row input:checked ~ .radio-dot::after {
    display: block;
}

.radio-label-text {
    font-size: 14px;
    color: #4b5563;
    font-weight: 500;
}



.save-note-txt {
    font-size: 12px;
    color: #9ca3af;
    font-weight: 500;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: flex-end; /* This aligns the content to the right */
    gap: 6px;
    margin-top: 10px;
}

.save-note-txt i {
    color: var(--dark-gold); /* Gold theme eken icon eka penawa */
    font-size: 10px;
}

 
.form-cancel-btn,
.form-save-btn {
    font-family: 'Raleway', sans-serif;
    font-size: 14px;
    font-weight: 600;
    height: 42px;
    padding: 0 28px;
    border-radius: 21px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-cancel-btn {
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    color: #4b5563;
}
.form-cancel-btn:hover {
    border-color: #dc2626;
    color: #dc2626;
    background-color: #fff5f5;
}

.form-save-btn {
    background: var(--surface-dark);
    color: var(--bright-gold);
    border: none;
}
.form-save-btn:hover {
    background: var(--gradient-gold-linear);
    color: #000000;
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.2);
}

/* ==========================================================================
   💳 PAYMENT METHOD SELECTION SLIDE ACCORDION ACCENT STYLES
   ========================================================================== */
.payment-accordion-wrapper {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.payment-method-node {
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    padding: 18px 20px;
    background-color: #ffffff;
    transition: border-color 0.3s ease, background-color 0.3s ease;
    cursor: pointer;
}

.payment-method-node.active {
    border-color: var(--gold-border);
    background-color: #fffdf9; /* Light amber/gold luxury hue context blend */
}

.payment-row-split-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-brands-logo-indicator {
    display: flex;
    gap: 8px;
    font-size: 20px;
    color: #6b7280;
}
.payment-method-node.active .card-brands-logo-indicator {
    color: var(--dark-gold);
}

/* Collapsible Height Animation Matrices */
.payment-collapse-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Update this specific block in your existing CSS */
.payment-method-node.active .payment-collapse-panel {
    max-height: 450px; /* Increase from 120px to fit the new drop-zone */
}

/* Ensure the panel doesn't have a fixed height if not active */
.payment-collapse-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease-out; /* Use ease-out for smoother opening */
}

.payment-panel-inner {
    padding-top: 14px;
    font-size: 13px;
    color: #555555;
    line-height: 1.6;
    font-weight: 500;
    padding-left: 28px; /* Clean tracking alignment offset from the checkbox dot */
}

/* ==========================================================================
   📦 RIGHT SIDEBAR SUMMARY CARD FRAMING STYLES
   ========================================================================== */
.checkout-summary-sidebar {
    position: sticky;
    top: 180px; /* Perfect lock parameter sync directly against your sticky headers */
}

.summary-items-scroll-pane {
    max-height: 280px;
    overflow-y: auto;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    border-bottom: 1px solid #e5e7eb;
}

/* Customized scroll runner tracks */
.summary-items-scroll-pane::-webkit-scrollbar { width: 5px; }
.summary-items-scroll-pane::-webkit-scrollbar-thumb { background: #e5e7eb; border-radius: 10px; }

.summary-product-row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.summary-product-img-box {
    width: 65px;
    height: 65px;
    border-radius: 10px;
    background-color: #f9fafb;
    border: 1px solid #e5e7eb;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.summary-product-img-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 4px;
}

.summary-product-details {
    flex-grow: 1;
}

.summary-item-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-black);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.summary-item-meta {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
    font-weight: 500;
}

.summary-product-pricing {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    flex-shrink: 0;
}

.s-old-price {
    font-size: 11px;
    color: var(--text-muted);
    text-decoration: line-through;
}
.s-current-price {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary-black);
}

/* --- Calculations Interface Block --- */
.summary-calculations-block {
    padding: 24px;
    background-color: #f9fafb;
}

.calc-row-entry {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    font-weight: 500;
    color: #4b5563;
    margin-bottom: 10px;
}
.calc-row-entry.discount-type .calc-value {
    color: #dc2626;
    font-weight: 600;
}

.calc-total-row-break {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #e5e7eb;
    padding-top: 14px;
}

.total-label {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary-black);
}
.total-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-black);
}

/* Master Primary Call To Action Checkout Button */
.master-checkout-submit-cta-btn {
    width: 100%;
    height: 48px;
    border: none;
    border-radius: 24px;
    background: var(--surface-dark);
    color: var(--bright-gold);
    font-family: 'Raleway', sans-serif;
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

.master-checkout-submit-cta-btn i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.master-checkout-submit-cta-btn:hover {
    background: var(--gradient-gold-linear);
    color: #000000;
 }
.master-checkout-submit-cta-btn:hover i {
    transform: translateX(4px);
}

/* ==========================================================================
   📱 MOBILE VIEWPORT BREAJKPOINTS RESPONSIVE ADAPTATIONS
   ========================================================================== */
@media screen and (max-width: 576px) {

    .checkout-form-grid.col-4 > * {
        width: 100% !important;
        min-width: 100% !important;
    }

    .select-field-custom-wrapper,
    .form-field-wrapper {
        width: 100% !important;
    }

    .select-field-custom-wrapper select,
    .form-field-wrapper input {
        width: 100% !important;
        box-sizing: border-box;
    }
.payment-method-node.active .payment-collapse-panel {
    max-height: 550px; /* Increase from 120px to fit the new drop-zone */
}
}


@media screen and (max-width: 1100px) {
    .checkout-master-container {
        grid-template-columns: 1fr; /* Collapses spatial frameworks into a clean vertical flow path */
        gap: 30px;
    }
    .checkout-summary-sidebar {
        position: static; /* Drops fixed locking traits to render naturally under forms layout grids */
    }
}


 .mobile-only-next-btn {
    display: none; /* Hidden by default */
    width: 100%;
    margin-top: 20px;
    padding: 12px;
    background: var(--surface-dark);
    color: var(--bright-gold);
    border: none;
    border-radius: 20px;
    font-weight: 500;    font-family: 'Raleway', 'Noto Sans Sinhala', sans-serif;

    cursor: pointer;
}


@media screen and (max-width: 768px) {
    .checkout-form-grid.col-2 { grid-template-columns: 1fr; }
    .checkout-form-grid.col-4 { grid-template-columns: repeat(2, 1fr); }
   


}
@media screen and (max-width: 1100px) {
    .mobile-only-next-btn {
        display: block; /* Visible on mobile */
    }
}

/* Footer Control Blocks */
.form-actions-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    border-top: 1px solid #f3f4f6;
    padding-top: 24px;
}

@media screen and (max-width: 576px) {
    .checkout-master-section { padding-top: 25px; }
    .checkout-card-body { padding: 16px; }
    .checkout-form-grid.col-4 { grid-template-columns: 1fr; }
    
    .checkbox-options-flex,
    .radio-options-flex {
        flex-direction: column;
        gap: 12px;
    }
    
    .form-actions-footer {
        justify-content: stretch;
    }
    .form-cancel-btn,
    .form-save-btn {
        flex: 1;
        text-align: center;
    }

}

/* --- Premium Error Feedback System --- */
 

@keyframes shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
    40%, 60% { transform: translate3d(4px, 0, 0); }
}

 .form-field-wrapper.input-error,
.select-field-custom-wrapper.input-error,
.checkout-segment-group.input-error,
.payment-accordion-wrapper.input-error {
    border: 1px dashed #dc2626 !important;  
    border-radius: 14px !important;
    transition: all 0.5s ease;
    animation: shake 0.4s cubic-bezier(.36,.07,.19,.97) both;
}

 .form-field-wrapper.input-error input,
.select-field-custom-wrapper.input-error select {
    outline: none !important;
}

 .checkout-segment-group.input-error,
.payment-accordion-wrapper.input-error {
    padding: 15px;  
 }


 /* Spinner Styles */
.form-save-btn .atomic-spinner {
    display: none;
    width: 12px;
    height: 12px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin-accelerate-loop 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

.form-save-btn.loading-processing .atomic-spinner {
    display: inline-block;
}

@keyframes spin-accelerate-loop {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}


/* ==========================================================================
   📂 PREMIUM DROP-ZONE UPLOAD COMPONENT
   ========================================================================== */
.drop-zone {
    width: 100%;
    height: 150px;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    cursor: pointer;
    border: 2px dashed #d1d5db;
    border-radius: 14px;
    background: #f9fafb;
    transition: all 0.3s ease;
    position: relative;
    box-sizing: border-box;
}

.drop-zone--over { 
    border-color: var(--gold-border); 
    background: #fffdf9; 
}

.drop-zone__input { display: none; }

.drop-zone__prompt {
    display: flex;
    margin-top: 5px;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: #6b7280;
    font-size: 14px;
    font-family: 'Raleway', sans-serif;
}

.drop-zone__prompt i {
    font-size: 24px;
    color: var(--dark-gold);
}

.drop-zone__prompt small {
    font-size: 11px;
    color: #9ca3af;
}

/* Thumbnail preview style for selected files */
.drop-zone__thumb {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--primary-black);
    font-weight: 600;
}


/* Error state adaptation */
.payment-method-node.input-error .drop-zone {
    border-color: #dc2626 !important;
}

/* Responsive adjustment for the prompt text on very small screens */
@media screen and (max-width: 576px) {
    .drop-zone__prompt span {
        font-size: 12px;
    }
}

/* --- Premium Bank Details View Frame --- */
.bank-details-display-card {
    background-color: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bank-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
}

.bank-info-row .info-label {
    color: var(--text-muted);
    font-weight: 500;
}

.bank-info-row .info-value {
    color: var(--primary-black);
    text-align: right;
}

.bank-info-row-highlight {
    border-top: 1px dashed #e5e7eb;
    margin-top: 4px;
    padding-top: 8px;
}

.global-gold-text {
    color: var(--dark-gold) !important;
    letter-spacing: 0.5px;
}

/* Helper fix for layout margins */
.mb-16 { margin-bottom: 16px; }
.m-0 { margin: 0 !important; }
.p-0 { padding: 0 !important; }

/* Styling for the Place Order button processing state */
.master-checkout-submit-cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.master-checkout-submit-cta-btn.loading-processing {
    opacity: 0.8;
    cursor: not-allowed;
    background: #1a1a1a; /* Dark sleek neutral background while working */
    color: #888888;
    border-color: rgba(255,255,255,0.1);
}

/* Specific theme color over the gold background button */
.master-checkout-submit-cta-btn .atomic-spinner {
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-top-color: #d4af37; /* Clean match to your global gold theme styling */
}