checkout.css

/* ===== CHECKOUT PAGE STYLES ===== */

/* CSS Variables */
:root {
    --checkout-primary: #dc2626;
    --checkout-primary-hover: #b91c1c;
    --checkout-success: #16a34a;
    --checkout-warning: #ea580c;
    --checkout-info: #0284c7;

    --checkout-text-primary: #111827;
    --checkout-text-secondary: #6b7280;
    --checkout-text-muted: #9ca3af;

    --checkout-bg-white: #ffffff;
    --checkout-bg-light: #f9fafb;
    --checkout-bg-hover: #f3f4f6;
    --checkout-border: #e5e7eb;

    --checkout-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --checkout-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.08);
    --checkout-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    --checkout-radius-sm: 6px;
    --checkout-radius-md: 8px;
    --checkout-radius-lg: 12px;

    --checkout-transition: all 0.2s ease-in-out;
}

/* ===== MAIN CHECKOUT PAGE ===== */
.checkout-page {
    min-height: calc(100vh - 200px);
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
}

/* ===== CHECKOUT HEADER ===== */
.checkout-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--checkout-border);
}

.checkout-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--checkout-text-primary);
    margin: 0 0 1rem 0;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}

.checkout-title i {
    color: var(--checkout-success);
    animation: pulse-lock 2s infinite;
}

@keyframes pulse-lock {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.security-badges {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.security-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    border-radius: var(--checkout-radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    color: #166534;
    box-shadow: var(--checkout-shadow-sm);
}

.security-badge i {
    color: var(--checkout-success);
    font-size: 1.125rem;
}

/* ===== LOADING STATE ===== */
.checkout-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 5rem 2rem;
    text-align: center;
}

.checkout-loading .spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3rem;
}

/* ===== EMPTY CHECKOUT STATE ===== */
.empty-checkout-state {
    background: white;
    border-radius: var(--checkout-radius-lg);
    padding: 4rem 2rem;
    text-align: center;
    box-shadow: var(--checkout-shadow-sm);
    margin-top: 2rem;
}

.empty-checkout-icon {
    font-size: 5rem;
    color: var(--checkout-text-muted);
    margin-bottom: 1.5rem;
}

.empty-checkout-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--checkout-text-primary);
    margin-bottom: 0.75rem;
}

.empty-checkout-text {
    color: var(--checkout-text-secondary);
    font-size: 1.125rem;
    margin-bottom: 0;
}

/* ===== CHECKOUT SECTIONS ===== */
.checkout-section {
    background: white;
    border-radius: var(--checkout-radius-lg);
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--checkout-shadow-md);
    transition: var(--checkout-transition);
}

.checkout-section:hover {
    box-shadow: var(--checkout-shadow-lg);
}

.section-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--checkout-text-primary);
    margin: 0 0 1.5rem 0;
    display: flex;
    align-items: center;
}

.section-title i {
    color: var(--checkout-primary);
}

/* ===== PAYMENT METHOD SELECTION ===== */
.payment-methods {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.payment-method-card {
    border: 2px solid var(--checkout-border);
    border-radius: var(--checkout-radius-lg);
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--checkout-transition);
    background: white;
}

.payment-method-card:hover {
    border-color: var(--checkout-primary);
    background: var(--checkout-bg-light);
    transform: translateY(-2px);
    box-shadow: var(--checkout-shadow-md);
}

.payment-method-card.active {
    border-color: var(--checkout-primary);
    background: linear-gradient(to right, #fff7ed 0%, white 20%);
    box-shadow: var(--checkout-shadow-md);
}

.payment-method-radio {
    display: flex;
    align-items: center;
}

.payment-method-radio input[type="radio"] {
    width: 20px;
    height: 20px;
    margin-right: 1rem;
    cursor: pointer;
    accent-color: var(--checkout-primary);
}

.payment-method-radio label {
    flex: 1;
    cursor: pointer;
    margin: 0;
}

.payment-method-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.payment-method-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--checkout-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
}

.payment-method-icon.paypal-icon {
    background: linear-gradient(135deg, #003087, #0070ba);
    color: white;
}

.payment-method-icon.stripe-icon {
    background: linear-gradient(135deg, #635bff, #7b73ff);
    color: white;
}

.payment-method-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.payment-method-info strong {
    font-size: 1.125rem;
    color: var(--checkout-text-primary);
}

.payment-method-description {
    font-size: 0.875rem;
    color: var(--checkout-text-secondary);
}

/* ===== PAYPAL SECTION ===== */
.paypal-button-container {
    min-height: 150px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--checkout-bg-light);
    border-radius: var(--checkout-radius-md);
    border: 2px dashed var(--checkout-border);
}

#paypal-button-container {
    min-height: 50px;
}

.payment-processing {
    text-align: center;
    padding: 3rem 2rem;
}

.payment-processing .spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3rem;
}

.payment-disclaimer {
    display: flex;
    align-items: start;
    gap: 0.5rem;
    padding: 1rem;
    background: #dbeafe;
    border-radius: var(--checkout-radius-md);
    border-left: 4px solid var(--checkout-info);
}

.payment-disclaimer i {
    color: var(--checkout-info);
    font-size: 1.125rem;
    flex-shrink: 0;
    margin-top: 0.125rem;
}

/* ===== BILLING ADDRESS SECTION ===== */
.billing-section.collapsed .billing-form {
    display: none;
}

.section-header-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.section-header-toggle:hover .section-title {
    color: var(--checkout-primary);
}

.section-header-toggle .btn-link {
    padding: 0;
    font-size: 1.25rem;
    text-decoration: none;
}

.billing-form .form-label {
    font-weight: 600;
    color: var(--checkout-text-primary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.billing-form .form-control,
.billing-form .form-select {
    border: 2px solid var(--checkout-border);
    border-radius: var(--checkout-radius-md);
    padding: 0.75rem 1rem;
    transition: var(--checkout-transition);
}

.billing-form .form-control:focus,
.billing-form .form-select:focus {
    border-color: var(--checkout-primary);
    box-shadow: 0 0 0 0.2rem rgba(220, 38, 38, 0.15);
}

/* ===== ORDER SUMMARY ===== */
.order-summary {
    background: white;
    border-radius: var(--checkout-radius-lg);
    padding: 2rem;
    box-shadow: var(--checkout-shadow-lg);
}

.sticky-summary {
    position: sticky;
    top: 100px;
}

.order-summary-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--checkout-text-primary);
    margin: 0 0 1.5rem 0;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--checkout-border);
}

/* ===== ORDER ITEMS ===== */
.order-items {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 1.5rem;
    padding-right: 0.5rem;
}

.order-items::-webkit-scrollbar {
    width: 6px;
}

.order-items::-webkit-scrollbar-track {
    background: var(--checkout-bg-light);
    border-radius: 3px;
}

.order-items::-webkit-scrollbar-thumb {
    background: var(--checkout-border);
    border-radius: 3px;
}

.order-items::-webkit-scrollbar-thumb:hover {
    background: var(--checkout-text-muted);
}

.order-item {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--checkout-border);
}

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

.order-item-thumbnail {
    width: 60px;
    height: 40px;
    border-radius: var(--checkout-radius-sm);
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: var(--checkout-shadow-sm);
}

.order-item-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.order-item-thumbnail .thumbnail-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--checkout-text-muted);
    font-size: 1.25rem;
}

.order-item-details {
    min-width: 0;
}

.order-item-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--checkout-text-primary);
    margin: 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.order-item-instructor {
    font-size: 0.75rem;
    color: var(--checkout-text-secondary);
    margin: 0.25rem 0 0 0;
}

.order-item-price {
    font-size: 1rem;
    font-weight: 700;
    color: var(--checkout-text-primary);
    white-space: nowrap;
}

/* ===== PRICE BREAKDOWN ===== */
.price-breakdown {
    margin-bottom: 1.5rem;
}

.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    font-size: 1rem;
    color: var(--checkout-text-secondary);
}

.price-row.discount,
.price-row.coupon-discount {
    color: var(--checkout-success);
}

.price-row.discount i,
.price-row.coupon-discount i {
    margin-right: 0.25rem;
}

.price-row.total {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--checkout-text-primary);
    padding-top: 1rem;
    margin-top: 0.5rem;
}

.price-row .price {
    font-weight: 600;
}

.price-row.total .price {
    color: var(--checkout-primary);
}

/* ===== CHECKOUT TRUST BADGES ===== */
.checkout-trust-badges {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--checkout-border);
    margin-bottom: 1rem;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
    color: var(--checkout-text-secondary);
}

.trust-badge i {
    font-size: 1.25rem;
    color: var(--checkout-success);
    flex-shrink: 0;
}

/* ===== CHECKOUT ACTIONS ===== */
.checkout-actions {
    padding-top: 1rem;
    border-top: 1px solid var(--checkout-border);
}

/* ===== RESPONSIVE DESIGN ===== */

/* Tablets */
@media (max-width: 991.98px) {
    .sticky-summary {
        position: static;
        margin-top: 2rem;
    }

    .order-items {
        max-height: 400px;
    }
}

/* Mobile */
@media (max-width: 767.98px) {
    .checkout-header {
        text-align: left;
    }

    .checkout-title {
        font-size: 1.5rem;
        justify-content: flex-start;
    }

    .security-badges {
        justify-content: flex-start;
        gap: 0.75rem;
    }

    .security-badge {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }

    .checkout-section {
        padding: 1.5rem;
    }

    .section-title {
        font-size: 1.125rem;
    }

    .payment-method-card {
        padding: 1rem;
    }

    .payment-method-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .payment-method-info strong {
        font-size: 1rem;
    }

    .payment-method-description {
        font-size: 0.8125rem;
    }

    .order-summary {
        padding: 1.5rem;
    }

    .order-summary-title {
        font-size: 1.25rem;
    }

    .price-row.total {
        font-size: 1.25rem;
    }

    .billing-form .row {
        margin-left: -0.5rem;
        margin-right: -0.5rem;
    }

    .billing-form .col-md-6,
    .billing-form .col-md-3 {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
}

/* Small mobile */
@media (max-width: 575.98px) {
    .checkout-page .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .security-badges {
        flex-direction: column;
        align-items: flex-start;
    }

    .security-badge {
        width: 100%;
    }

    .payment-method-content {
        gap: 0.75rem;
    }

    .payment-method-radio input[type="radio"] {
        width: 18px;
        height: 18px;
        margin-right: 0.75rem;
    }

    .order-item {
        grid-template-columns: 50px 1fr auto;
        gap: 0.5rem;
    }

    .order-item-thumbnail {
        width: 50px;
        height: 35px;
    }

    .order-item-title {
        font-size: 0.8125rem;
    }

    .order-item-price {
        font-size: 0.875rem;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.checkout-section {
    animation: fadeIn 0.3s ease-out;
}

.checkout-section:nth-child(1) { animation-delay: 0.05s; }
.checkout-section:nth-child(2) { animation-delay: 0.1s; }
.checkout-section:nth-child(3) { animation-delay: 0.15s; }

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
.payment-method-card:focus-within {
    outline: 2px solid var(--checkout-primary);
    outline-offset: 2px;
}

.checkout-section .btn:focus-visible,
.billing-form .form-control:focus-visible,
.billing-form .form-select:focus-visible {
    outline: 2px solid var(--checkout-primary);
    outline-offset: 2px;
}