/* ==========================================================================
   Really Simple Funnel — Frontend (Checkout) styles
   Consumes design tokens from variables.css. Do not hard-code colors/radii;
   use the --rsf-* variables so themes apply automatically.

   Mobile-first, compact layout optimized for conversion rate.
   ========================================================================== */

.rsf-checkout-wrapper {
    max-width: 600px;
    margin: 0 auto;
    font-family: var(--rsf-font);
    color: var(--rsf-text);
    line-height: 1.5;
}

.rsf-checkout-wrapper * {
    box-sizing: border-box;
}

.rsf-template-checkout .rsf-checkout-form {
    display: flex;
    flex-direction: column;
}

.rsf-products-bottom .rsf-checkout-products {
    order: 999;
}

/* ---- Compact section containers (no backgrounds/borders = less visual noise) ---- */

.rsf-checkout-products,
.rsf-checkout-summary,
.rsf-checkout-fields,
.rsf-checkout-payment {
    padding: var(--rsf-space-3);
    margin-bottom: var(--rsf-space-3);
}

/* Section titles — small, muted, no underline */
.rsf-section-title {
    font-size: var(--rsf-text-sm);
    font-weight: var(--rsf-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--rsf-text-muted);
    margin: 0 0 var(--rsf-space-2);
}

.rsf-checkout-products .rsf-section-title {
    font-size: var(--rsf-text-base);
    color: var(--rsf-text);
    margin-bottom: var(--rsf-space-2);
}

/* ---- Product items — clean card design ---- */

.rsf-product-item {
    display: flex;
    align-items: flex-start;
    gap: var(--rsf-space-3);
    padding: var(--rsf-space-3);
    margin-bottom: var(--rsf-space-2);
    background: var(--rsf-surface);
    border: 1px solid var(--rsf-border);
    border-radius: var(--rsf-radius);
    position: relative;
    transition: border-color var(--rsf-transition), box-shadow var(--rsf-transition);
}

.rsf-product-item:last-child {
    margin-bottom: 0;
}

.rsf-product-item:hover {
    border-color: var(--rsf-border-strong);
    box-shadow: var(--rsf-shadow-sm);
}

.rsf-product-image {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    border-radius: var(--rsf-radius-sm);
    overflow: hidden;
    background: var(--rsf-bg);
    border: 1px solid var(--rsf-border);
}

.rsf-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.rsf-product-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: var(--rsf-space-2);
}

.rsf-product-info {
    flex: 1;
    min-width: 0;
}

.rsf-product-name {
    margin: 0 0 2px;
    font-size: var(--rsf-text-base);
    font-weight: var(--rsf-weight-semibold);
    color: var(--rsf-text);
    line-height: 1.35;
}

.rsf-product-price {
    font-size: var(--rsf-text-sm);
    color: var(--rsf-text-muted);
}

.rsf-product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--rsf-space-2);
}

.rsf-product-quantity {
    display: flex;
    align-items: center;
    gap: 0;
    flex-shrink: 0;
}

.rsf-qty-btn {
    width: 30px;
    height: 30px;
    border: 1px solid var(--rsf-border);
    background: var(--rsf-surface);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    color: var(--rsf-text);
    transition: background var(--rsf-transition), border-color var(--rsf-transition);
}

.rsf-qty-btn:first-child {
    border-radius: var(--rsf-radius-xs) 0 0 var(--rsf-radius-xs);
}

.rsf-qty-btn:last-child {
    border-radius: 0 var(--rsf-radius-xs) var(--rsf-radius-xs) 0;
}

.rsf-qty-btn:hover {
    background: var(--rsf-surface-hover);
    border-color: var(--rsf-border-strong);
}

.rsf-qty-input {
    width: 38px;
    height: 30px;
    border: 1px solid var(--rsf-border);
    border-left: none;
    border-right: none;
    text-align: center;
    font-size: var(--rsf-text-sm);
    font-weight: var(--rsf-weight-semibold);
    padding: 0;
    -moz-appearance: textfield;
    background: var(--rsf-surface);
}

.rsf-qty-input::-webkit-outer-spin-button,
.rsf-qty-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.rsf-product-subtotal {
    font-size: var(--rsf-text-md);
    font-weight: var(--rsf-weight-bold);
    color: var(--rsf-text);
    flex-shrink: 0;
    text-align: right;
}

.rsf-product-remove {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--rsf-text-subtle);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: color var(--rsf-transition), background var(--rsf-transition);
    border-radius: var(--rsf-radius-xs);
}

.rsf-product-remove:hover {
    color: var(--rsf-danger);
    background: var(--rsf-danger-soft);
}

/* ---- Summary — compact inline rows ---- */

.rsf-checkout-summary {
    background: var(--rsf-surface);
    border: 1px solid var(--rsf-border);
    border-radius: var(--rsf-radius);
}

.rsf-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--rsf-space-1) 0;
    font-size: var(--rsf-text-sm);
    color: var(--rsf-text-muted);
}

.rsf-summary-total {
    border-top: 1px solid var(--rsf-border);
    margin-top: var(--rsf-space-1);
    padding-top: var(--rsf-space-2);
    font-size: var(--rsf-text-lg);
    color: var(--rsf-text);
}

.rsf-summary-total strong {
    font-weight: var(--rsf-weight-bold);
}

/* ---- Fields — compact form ---- */

.rsf-checkout-fields {
    background: var(--rsf-surface);
    border: 1px solid var(--rsf-border);
    border-radius: var(--rsf-radius);
}

.rsf-field-group {
    margin-bottom: var(--rsf-space-3);
}

.rsf-field-group:last-child {
    margin-bottom: 0;
}

.rsf-field-group label {
    display: block;
    margin-bottom: 4px;
    font-size: var(--rsf-text-sm);
    font-weight: var(--rsf-weight-medium);
    color: var(--rsf-text);
}

.rsf-field-group .required {
    color: var(--rsf-danger);
}

.rsf-field-group input[type="text"],
.rsf-field-group input[type="tel"],
.rsf-field-group input[type="email"],
.rsf-field-group select,
.rsf-field-group textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--rsf-border);
    border-radius: var(--rsf-radius-xs);
    font-size: var(--rsf-text-base);
    transition: border-color var(--rsf-transition);
    background-color: var(--rsf-surface);
    height: 40px;
}

.rsf-field-group input:focus,
.rsf-field-group select:focus,
.rsf-field-group textarea:focus {
    outline: none;
    border-color: var(--rsf-primary);
    box-shadow: 0 0 0 3px var(--rsf-primary-ring);
}

.rsf-field-group input.error,
.rsf-field-group select.error,
.rsf-field-group textarea.error {
    border-color: var(--rsf-danger);
}

.rsf-field-group textarea {
    min-height: 60px;
    resize: vertical;
}

/* Two-column fields on wider screens */
@media (min-width: 560px) {
    .rsf-field-group-half {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--rsf-space-3);
    }
}

/* ---- Payment — compact radio ---- */

.rsf-checkout-payment {
    background: var(--rsf-surface);
    border: 1px solid var(--rsf-border);
    border-radius: var(--rsf-radius);
}

.rsf-payment-method label {
    display: flex;
    align-items: center;
    gap: var(--rsf-space-2);
    padding: 8px 10px;
    border: 1px solid var(--rsf-border);
    border-radius: var(--rsf-radius-xs);
    cursor: pointer;
    font-size: var(--rsf-text-sm);
    background: var(--rsf-surface);
    transition: border-color var(--rsf-transition);
}

.rsf-payment-method label:hover {
    border-color: var(--rsf-primary);
}

.rsf-payment-method input[type="radio"] {
    accent-color: var(--rsf-primary);
}

/* ---- Submit — prominent button ---- */

.rsf-submit-btn {
    width: 100%;
    padding: 12px 20px;
    background: var(--rsf-primary);
    color: var(--rsf-on-primary);
    border: none;
    border-radius: var(--rsf-radius);
    font-size: var(--rsf-text-md);
    font-weight: var(--rsf-weight-semibold);
    cursor: pointer;
    transition: background var(--rsf-transition), transform 0.1s;
    margin-bottom: var(--rsf-space-3);
}

.rsf-submit-btn:hover {
    background: var(--rsf-primary-hover);
}

.rsf-submit-btn:active {
    transform: scale(0.98);
}

.rsf-submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* ---- Messages ---- */

.rsf-form-message {
    padding: var(--rsf-space-2) var(--rsf-space-3);
    border-radius: var(--rsf-radius-xs);
    margin-top: var(--rsf-space-2);
    font-size: var(--rsf-text-sm);
    text-align: center;
}

.rsf-form-message.rsf-success {
    background: var(--rsf-success-soft);
    color: var(--rsf-success-text);
    border: 1px solid var(--rsf-success-border);
}

.rsf-form-message.rsf-error {
    background: var(--rsf-danger-soft);
    color: var(--rsf-danger-text);
    border: 1px solid var(--rsf-danger-ring);
}

/* ---- Funnel qty-row ---- */

.rsf-qty-row {
    position: relative;
    margin-bottom: 12px;
    border: 1px solid var(--rsf-border);
    border-radius: var(--rsf-radius);
    overflow: hidden;
    transition: all 0.3s ease;
}

.rsf-qty-row.rsf-highlight {
    border-color: var(--rsf-danger);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--rsf-danger) 30%, transparent);
}

.rsf-highlight-head {
    position: absolute;
    top: 10px;
    left: auto;
    right: -66px;
    background: linear-gradient(135deg, var(--rsf-danger) 0%, color-mix(in srgb, var(--rsf-danger) 75%, white) 100%);
    color: #fff;
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 6px 12px;
    border-radius: var(--rsf-radius) var(--rsf-radius) 0 0;
    z-index: 10;
    transform: rotate(34deg);
    width: 200px;
    text-align: center;
}

.rsf-highlight-head span {
    position: relative;
    z-index: 2;
}

/* ---- Funnel item selector ---- */

.rsf-item {
    display: flex;
    align-items: flex-start;
    padding: var(--rsf-space-3);
    gap: var(--rsf-space-3);
    position: relative;
}

.rsf-item-selector {
    flex-shrink: 0;
    margin-top: 8px;
}

.rsf-single-sel {
    width: 20px;
    height: 20px;
    cursor: pointer;
    margin: 0;
    accent-color: var(--rsf-primary);
}

.rsf-item-product-label {
    display: none;
}

.rsf-item-image {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: var(--rsf-radius);
    overflow: hidden;
    background: var(--rsf-bg);
    border: 1px solid var(--rsf-border);
}

.rsf-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.rsf-no-image {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--rsf-text-subtle);
    font-size: var(--rsf-text-xs);
}

.rsf-item-content-options {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--rsf-space-2);
    min-width: 0;
}

.rsf-item-wrap {
    flex: 1;
    min-width: 0;
}

.rsf-display-title {
    display: block;
    font-size: var(--rsf-text-md);
    font-weight: var(--rsf-weight-semibold);
    color: var(--rsf-text);
    line-height: 1.4;
}

.rsf-item-subtext {
    font-size: var(--rsf-text-sm);
    color: var(--rsf-danger);
    font-weight: var(--rsf-weight-medium);
}

.rsf-display-discount-value {
    display: inline-flex;
    align-items: center;
    gap: var(--rsf-space-1);
}

.rsf-qty-price-row {
    display: flex;
    align-items: center;
    gap: var(--rsf-space-4);
    margin-top: var(--rsf-space-1);
}

.rsf-qty {
    flex-shrink: 0;
}

.rsf-qty-selection-wrap {
    display: flex;
    align-items: center;
    border: 1px solid var(--rsf-border-strong);
    border-radius: var(--rsf-radius-sm);
    overflow: hidden;
    background: var(--rsf-surface);
}

.rsf-qty-selection-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--rsf-bg);
    border: none;
    cursor: pointer;
    font-size: 18px;
    font-weight: var(--rsf-weight-semibold);
    color: var(--rsf-text-muted);
    transition: all var(--rsf-transition-slow);
    user-select: none;
}

.rsf-qty-selection-btn:hover {
    background: var(--rsf-border);
    color: var(--rsf-text);
}

.rsf-qty-selection {
    width: 50px;
    height: 32px;
    text-align: center;
    border: none;
    font-size: var(--rsf-text-base);
    font-weight: var(--rsf-weight-semibold);
    color: var(--rsf-text);
    background: var(--rsf-surface);
    outline: none;
}

.rsf-qty-selection::-webkit-inner-spin-button,
.rsf-qty-selection::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.rsf-price {
    flex-shrink: 0;
    text-align: right;
    min-width: 100px;
    margin-left: auto;
}

.rsf-display-price {
    font-size: var(--rsf-text-lg);
    font-weight: var(--rsf-weight-bold);
    color: var(--rsf-text);
}

.rsf-display-price del {
    color: var(--rsf-text-subtle);
    font-size: var(--rsf-text-base);
    font-weight: var(--rsf-weight-medium);
    text-decoration: line-through;
    margin-right: var(--rsf-space-2);
}

.rsf-display-price ins {
    color: var(--rsf-danger);
    text-decoration: none;
    font-weight: var(--rsf-weight-bold);
}

/* ---- Responsive (mobile-first) ---- */

@media (max-width: 480px) {
    .rsf-checkout-wrapper {
        padding: 0;
    }

    /* Product items: stack image and details on very small screens */
    .rsf-product-image {
        width: 56px;
        height: 56px;
    }

    .rsf-product-item {
        align-items: center;
    }
}

@media (min-width: 600px) {
    .rsf-checkout-wrapper {
        padding: var(--rsf-space-5);
    }

    /* Stacked layout on wider screens */
    .rsf-checkout-products,
    .rsf-checkout-summary,
    .rsf-checkout-fields,
    .rsf-checkout-payment {
        padding: var(--rsf-space-4);
    }
}