/**
 * SocialBank Cart-Based Donation Form Styles
 * Modern Design System v2
 */

/* ========================================
   DESIGN TOKENS
   ======================================== */
:root {
    --sbd-primary: #2563eb;
    --sbd-primary-hover: #1d4ed8;
    --sbd-primary-light: #eff6ff;
    --sbd-primary-border: #93c5fd;
    --sbd-success: #16a34a;
    --sbd-success-light: #dcfce7;
    --sbd-danger: #dc2626;
    --sbd-danger-light: #fef2f2;
    --sbd-warning: #d97706;
    --sbd-text: #1f2937;
    --sbd-text-secondary: #6b7280;
    --sbd-text-muted: #9ca3af;
    --sbd-bg: #ffffff;
    --sbd-bg-subtle: #f9fafb;
    --sbd-bg-muted: #f3f4f6;
    --sbd-border: #e5e7eb;
    --sbd-border-focus: #2563eb;
    --sbd-radius-sm: 6px;
    --sbd-radius: 10px;
    --sbd-radius-lg: 14px;
    --sbd-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --sbd-shadow: 0 4px 12px rgba(0,0,0,0.08);
    --sbd-shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --sbd-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --sbd-transition: 0.2s ease;
}

/* ========================================
   WRAPPER
   ======================================== */
.sbd-cart-form-wrapper {
    max-width: 860px;
    margin: 0 auto;
    font-family: var(--sbd-font);
    color: var(--sbd-text);
    font-size: 14px;
    line-height: 1.5;
}

/* ========================================
   HEADER
   ======================================== */
.sbd-cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    background: var(--sbd-bg);
    border: 1px solid var(--sbd-border);
    border-radius: var(--sbd-radius);
    margin-bottom: 24px;
    box-shadow: var(--sbd-shadow-sm);
    transition: box-shadow var(--sbd-transition), border-radius var(--sbd-transition);
}

.sbd-cart-header.sbd-stuck {
    border-radius: 0 0 var(--sbd-radius) var(--sbd-radius);
    box-shadow: var(--sbd-shadow-lg);
    border-top: none;
}

.sbd-cart-header-placeholder {
    display: none;
}

.sbd-cart-total-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--sbd-text-secondary);
    margin-right: 10px;
}

.sbd-cart-total-amount {
    font-size: 30px;
    font-weight: 700;
    color: var(--sbd-primary);
}

/* Clear Cart */
.sbd-clear-cart-btn,
.sbd-clear-cart-btn-small {
    background: none;
    border: 1.5px solid var(--sbd-danger);
    color: var(--sbd-danger);
    padding: 8px 18px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: all var(--sbd-transition);
}

.sbd-clear-cart-btn:hover,
.sbd-clear-cart-btn-small:hover {
    background: var(--sbd-danger);
    color: white;
}

/* ========================================
   STEPS
   ======================================== */
.sbd-cart-steps {
    display: flex;
    justify-content: center;
    gap: 56px;
    margin-bottom: 32px;
    position: relative;
}

.sbd-cart-steps::before {
    content: '';
    position: absolute;
    top: 17px;
    left: 25%;
    right: 25%;
    height: 2px;
    background: var(--sbd-border);
    z-index: 0;
}

.sbd-cart-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.sbd-cart-step-num {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--sbd-bg);
    border: 2px solid var(--sbd-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    color: var(--sbd-text-muted);
    transition: all var(--sbd-transition);
}

.sbd-cart-step.active .sbd-cart-step-num,
.sbd-cart-step.completed .sbd-cart-step-num {
    background: var(--sbd-primary);
    border-color: var(--sbd-primary);
    color: white;
}

.sbd-cart-step.completed .sbd-cart-step-num::after {
    content: '✓';
}

.sbd-cart-step-text {
    font-size: 12px;
    color: var(--sbd-text-muted);
    font-weight: 500;
}

.sbd-cart-step.active .sbd-cart-step-text {
    color: var(--sbd-primary);
    font-weight: 600;
}

/* ========================================
   ACTIONS (TOP/BOTTOM)
   ======================================== */
.sbd-cart-actions-top,
.sbd-cart-actions-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.sbd-cart-actions-bottom {
    margin-top: 16px;
    margin-bottom: 0;
}

.sbd-continue-btn {
    background: var(--sbd-primary);
    color: white;
    border: none;
    padding: 12px 32px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--sbd-transition);
    letter-spacing: 0.3px;
}

.sbd-continue-btn:hover {
    background: var(--sbd-primary-hover);
    box-shadow: var(--sbd-shadow);
}

/* ========================================
   CATEGORY BLOCKS
   ======================================== */
.sbd-category-block {
    margin-bottom: 12px;
    border-radius: var(--sbd-radius);
    overflow: hidden;
    border: 1px solid var(--sbd-border);
    box-shadow: var(--sbd-shadow-sm);
}

.sbd-category-header {
    display: flex;
    align-items: center;
    padding: 14px 20px;
    color: white;
    cursor: pointer;
    user-select: none;
}

.sbd-category-toggle {
    margin-right: 12px;
    font-size: 12px;
    transition: transform var(--sbd-transition);
}

.sbd-category-block.collapsed .sbd-category-toggle {
    transform: rotate(-90deg);
}

.sbd-category-name {
    flex: 1;
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.5px;
}

.sbd-category-total {
    font-weight: 700;
    font-size: 16px;
}

.sbd-category-items {
    background: var(--sbd-bg);
}

.sbd-category-block.collapsed .sbd-category-items {
    display: none;
}

/* ========================================
   PURPOSE ITEMS
   ======================================== */
.sbd-purpose-item {
    display: flex;
    align-items: center;
    padding: 14px 20px;
    border-bottom: 1px solid var(--sbd-border);
    gap: 16px;
    transition: background var(--sbd-transition);
}

.sbd-purpose-item:last-child {
    border-bottom: none;
}

.sbd-purpose-item:hover {
    background: var(--sbd-bg-subtle);
}

.sbd-purpose-info {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.sbd-purpose-info-icon {
    cursor: pointer;
    font-size: 16px;
    opacity: 0.5;
    transition: opacity var(--sbd-transition);
}

.sbd-purpose-info-icon:hover {
    opacity: 1;
}

.sbd-purpose-name {
    font-weight: 500;
    color: var(--sbd-text);
}

.sbd-purpose-details {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--sbd-bg);
    border: 1px solid var(--sbd-border);
    border-radius: var(--sbd-radius);
    padding: 16px;
    box-shadow: var(--sbd-shadow-lg);
    z-index: 100;
    max-width: 300px;
}

.sbd-purpose-details img {
    max-width: 100%;
    border-radius: var(--sbd-radius-sm);
    margin-bottom: 10px;
}

.sbd-purpose-details p {
    margin: 0;
    font-size: 13px;
    color: var(--sbd-text-secondary);
}

.sbd-purpose-price {
    width: 80px;
    text-align: right;
    font-style: italic;
    color: var(--sbd-text-secondary);
    font-size: 13px;
}

/* Quantity Controls */
.sbd-purpose-quantity {
    display: flex;
    align-items: center;
    gap: 6px;
    width: 120px;
    justify-content: center;
}

.sbd-qty-btn {
    width: 30px;
    height: 30px;
    border: none;
    background: var(--sbd-primary);
    color: white;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--sbd-transition);
}

.sbd-qty-btn:hover {
    background: var(--sbd-primary-hover);
    transform: scale(1.05);
}

.sbd-qty-value {
    min-width: 32px;
    text-align: center;
    font-weight: 600;
    font-size: 16px;
    color: var(--sbd-text);
}

.sbd-flexible-amount {
    width: 72px;
    padding: 8px 10px;
    border: 1.5px solid var(--sbd-border);
    border-radius: var(--sbd-radius-sm);
    text-align: right;
    font-size: 14px;
    transition: border-color var(--sbd-transition);
}

.sbd-flexible-amount:focus {
    outline: none;
    border-color: var(--sbd-border-focus);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.sbd-currency {
    color: var(--sbd-text-secondary);
    font-size: 14px;
}

.sbd-purpose-total {
    width: 80px;
    text-align: right;
    font-weight: 600;
    color: var(--sbd-text);
}

/* ========================================
   RHYTHM SELECTOR (per purpose item)
   ======================================== */
.sbd-purpose-rhythm {
    width: 110px;
    flex-shrink: 0;
}

.sbd-rhythm-select {
    width: 100%;
    padding: 5px 6px;
    border: 1.5px solid var(--sbd-border);
    border-radius: var(--sbd-radius-sm);
    font-size: 11px;
    color: var(--sbd-text);
    background: var(--sbd-bg);
    transition: all var(--sbd-transition);
    cursor: pointer;
    font-family: var(--sbd-font);
}

.sbd-rhythm-select:focus {
    outline: none;
    border-color: var(--sbd-border-focus);
}

.sbd-rhythm-select.sbd-rhythm-periodic {
    border-color: var(--sbd-primary);
    background: var(--sbd-primary-light);
    color: var(--sbd-primary);
    font-weight: 600;
}

/* ========================================
   MULTI-SUBMIT PROGRESS OVERLAY
   ======================================== */
.sbd-multi-submit-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 999999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.sbd-multi-submit-progress {
    text-align: center;
    color: #fff;
    max-width: 400px;
    padding: 40px;
}

.sbd-progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    margin: 20px 0;
    overflow: hidden;
}

.sbd-progress-fill {
    height: 100%;
    background: #fff;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.sbd-multi-submit-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
}

.sbd-multi-submit-item.completed {
    color: #4ade80;
}

.sbd-multi-submit-item.failed {
    color: #f87171;
}

.sbd-multi-submit-item.processing {
    color: #fff;
    font-weight: 600;
}

/* ========================================
   INFO FORM (STEP 2)
   ======================================== */
.sbd-info-form {
    background: var(--sbd-bg);
    padding: 32px;
    border-radius: var(--sbd-radius);
    border: 1px solid var(--sbd-border);
    box-shadow: var(--sbd-shadow-sm);
}

.sbd-info-form h3 {
    margin: 0 0 24px;
    color: var(--sbd-text);
    font-size: 18px;
    font-weight: 700;
}

.sbd-form-row {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.sbd-form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.sbd-form-group-small {
    flex: 0 0 130px;
}

.sbd-form-group-large {
    flex: 2;
}

.sbd-form-group-full {
    flex: 0 0 100%;
}

.sbd-form-group label {
    font-size: 12px;
    font-weight: 500;
    color: var(--sbd-text-secondary);
    margin-bottom: 5px;
}

.sbd-form-group input,
.sbd-form-group select,
.sbd-form-group textarea {
    padding: 10px 14px;
    border: 1.5px solid var(--sbd-border);
    border-radius: var(--sbd-radius-sm);
    font-size: 14px;
    color: var(--sbd-text);
    background: var(--sbd-bg);
    transition: all var(--sbd-transition);
    font-family: var(--sbd-font);
}

.sbd-form-group input:focus,
.sbd-form-group select:focus,
.sbd-form-group textarea:focus {
    outline: none;
    border-color: var(--sbd-border-focus);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.sbd-form-group textarea {
    resize: vertical;
    min-height: 60px;
}

.sbd-form-group select {
    appearance: auto;
}

/* Checkbox */
.sbd-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    color: var(--sbd-text-secondary);
    cursor: pointer;
}

.sbd-checkbox-label input {
    width: 18px;
    height: 18px;
    margin-top: 1px;
    flex-shrink: 0;
    accent-color: var(--sbd-primary);
}

/* Privacy Note */
.sbd-privacy-note {
    font-size: 12px;
    color: var(--sbd-text-muted);
    margin: 20px 0;
    line-height: 1.6;
}

.sbd-privacy-note a {
    color: var(--sbd-primary);
    text-decoration: none;
}

.sbd-privacy-note a:hover {
    text-decoration: underline;
}

/* ========================================
   CART SUMMARY
   ======================================== */
.sbd-cart-summary {
    background: var(--sbd-bg-subtle);
    padding: 20px 24px;
    border-radius: var(--sbd-radius);
    margin: 24px 0;
    border: 1px solid var(--sbd-border);
}

.sbd-cart-summary h4 {
    margin: 0 0 14px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--sbd-text-secondary);
}

.sbd-summary-items {
    margin-bottom: 14px;
}

.sbd-summary-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--sbd-border);
    font-size: 14px;
}

.sbd-summary-item:last-child {
    border-bottom: none;
}

.sbd-summary-item-name {
    flex: 1;
    color: var(--sbd-text);
}

.sbd-summary-item-qty {
    width: 80px;
    text-align: center;
    color: var(--sbd-text-secondary);
}

.sbd-summary-item-price {
    width: 80px;
    text-align: right;
    font-weight: 600;
    color: var(--sbd-text);
}

.sbd-summary-total {
    display: flex;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 2px solid var(--sbd-border);
    font-size: 16px;
    font-weight: 600;
}

.sbd-summary-total strong {
    color: var(--sbd-primary);
    font-size: 20px;
}

/* ========================================
   PAYMENT OPTIONS
   ======================================== */
.sbd-payment-options {
    display: flex;
    gap: 12px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.sbd-payment-option {
    flex: 1;
    min-width: 140px;
    cursor: pointer;
}

.sbd-payment-option input {
    display: none;
}

.sbd-payment-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 20px;
    border: 2px solid var(--sbd-border);
    border-radius: var(--sbd-radius);
    text-align: center;
    font-weight: 600;
    font-size: 14px;
    transition: all var(--sbd-transition);
    color: var(--sbd-text-secondary);
    background: var(--sbd-bg);
}

.sbd-payment-option:hover .sbd-payment-logo {
    border-color: var(--sbd-primary-border);
}

.sbd-payment-option input:checked + .sbd-payment-logo {
    border-color: var(--sbd-primary);
    background: var(--sbd-primary-light);
    color: var(--sbd-primary);
}

.sbd-logo-paypal {
    color: #003087;
}

.sbd-logo-card {
    color: #1a1f71;
}

.sbd-logo-sepa {
    color: #004990;
}

.sbd-payment-option input:checked + .sbd-logo-paypal,
.sbd-payment-option input:checked + .sbd-logo-card,
.sbd-payment-option input:checked + .sbd-logo-sepa {
    color: var(--sbd-primary);
}

/* ========================================
   SEPA FIELDS
   ======================================== */
.sbd-sepa-fields {
    background: var(--sbd-bg-subtle);
    padding: 20px 24px;
    border-radius: var(--sbd-radius);
    margin: 20px 0;
    border: 1px solid var(--sbd-border);
}

.sbd-iban-input {
    font-family: 'Courier New', monospace;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    font-size: 16px;
}

.sbd-sepa-mandate {
    margin-top: 14px;
    font-size: 12px;
    color: var(--sbd-text-secondary);
}

.sbd-sepa-mandate p {
    margin: 0 0 10px;
    font-style: italic;
    line-height: 1.5;
}

/* ========================================
   CART ACTIONS (BOTTOM)
   ======================================== */
.sbd-cart-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--sbd-border);
}

.sbd-back-btn {
    background: var(--sbd-bg);
    border: 1.5px solid var(--sbd-border);
    color: var(--sbd-text);
    padding: 12px 32px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--sbd-transition);
}

.sbd-back-btn:hover {
    background: var(--sbd-bg-muted);
    border-color: var(--sbd-text-secondary);
}

.sbd-submit-btn {
    background: var(--sbd-primary);
    color: white;
    border: none;
    padding: 14px 40px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--sbd-transition);
    letter-spacing: 0.3px;
}

.sbd-submit-btn:hover {
    background: var(--sbd-primary-hover);
    box-shadow: var(--sbd-shadow);
}

.sbd-submit-btn:disabled {
    background: var(--sbd-text-muted);
    cursor: not-allowed;
    box-shadow: none;
}

/* ========================================
   ERROR MESSAGE
   ======================================== */
.sbd-error {
    background: var(--sbd-danger-light);
    border: 1px solid #fecaca;
    border-radius: var(--sbd-radius);
    padding: 14px 20px;
    color: var(--sbd-danger);
    font-size: 14px;
    font-weight: 500;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .sbd-cart-form-wrapper {
        padding: 0 12px;
    }

    .sbd-cart-header {
        flex-direction: column;
        gap: 14px;
        text-align: center;
    }

    .sbd-cart-steps {
        gap: 24px;
    }

    .sbd-cart-steps::before {
        left: 15%;
        right: 15%;
    }

    .sbd-purpose-item {
        flex-wrap: wrap;
        gap: 10px;
    }

    .sbd-purpose-info {
        flex: 0 0 100%;
    }

    .sbd-purpose-price,
    .sbd-purpose-quantity,
    .sbd-purpose-rhythm,
    .sbd-purpose-total {
        flex: 1;
    }

    .sbd-purpose-rhythm {
        width: auto;
    }

    .sbd-info-form {
        padding: 20px 16px;
    }

    .sbd-form-row {
        flex-direction: column;
        gap: 8px;
    }

    .sbd-form-group-small,
    .sbd-form-group-large {
        flex: 1;
    }

    .sbd-payment-options {
        flex-direction: column;
    }

    .sbd-cart-actions {
        flex-direction: column;
        gap: 10px;
    }

    .sbd-back-btn,
    .sbd-submit-btn {
        width: 100%;
        text-align: center;
    }
}

/* ========================================
   ANIMATION
   ======================================== */
@keyframes sbd-highlight {
    0% { background-color: var(--sbd-primary-light); }
    100% { background-color: transparent; }
}

.sbd-purpose-item.highlighted {
    animation: sbd-highlight 0.6s ease;
}