/**
 * Checkout Page Styles - Perfect Chess Academy
 * Premium glassmorphic design with multi-step checkout flow
 */

/* ============================================
   CHECKOUT PAGE LAYOUT
   ============================================ */
.checkout-page {
    min-height: calc(100vh - var(--header-h));
    background: var(--gradient-hero);
    padding: var(--space-xl) var(--space-md);
}

.checkout-container {
    max-width: 1200px;
    margin: 0 auto;
}

.checkout-main {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

@media (max-width: 1024px) {
    .checkout-main {
        grid-template-columns: 1fr;
    }

    .order-summary {
        order: -1;
    }
}

/* ============================================
   PROGRESS STEPPER
   ============================================ */
.checkout-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: var(--space-lg) var(--space-xl);
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-secondary);
    box-shadow: var(--shadow-lg);
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-muted);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.step-number i {
    font-size: 1rem;
}

.step-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.3s ease;
}

.progress-line {
    flex: 1;
    height: 3px;
    background: var(--border-secondary);
    min-width: 60px;
    max-width: 120px;
    margin: 0 0.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}

.progress-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: var(--gradient-accent);
    transition: width 0.5s ease;
}

/* Active & Completed States */
.progress-step.active .step-number,
.progress-step.completed .step-number {
    background: var(--gradient-accent);
    border-color: var(--accent-primary);
    color: var(--bg-primary);
    box-shadow: 0 4px 20px rgba(var(--accent-primary-rgb), 0.4);
}

.progress-step.active .step-label,
.progress-step.completed .step-label {
    color: var(--accent-primary);
}

.progress-step.completed .step-number i::before {
    content: "\f00c";
    /* Check icon */
}

.progress-line.completed::after {
    width: 100%;
}

@media (max-width: 600px) {
    .checkout-progress {
        padding: var(--space-md);
        gap: 0;
    }

    .step-label {
        font-size: 0.7rem;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }

    .progress-line {
        min-width: 30px;
    }
}

/* ============================================
   CHECKOUT STEPS
   ============================================ */
.checkout-steps {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-secondary);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
}

.checkout-step {
    display: none;
    animation: fadeInUp 0.4s ease;
}

.checkout-step.active {
    display: block;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-secondary);
}

.step-header h2 {
    font-size: var(--text-2xl);
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.step-header h2 i {
    color: var(--accent-primary);
}

.step-header p {
    color: var(--text-muted);
    margin: 0;
}

/* ============================================
   CART ITEMS (Step 1)
   ============================================ */
.cart-items-container {
    margin-bottom: var(--space-lg);
}

.cart-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    border: 1px solid var(--border-secondary);
    transition: all 0.3s ease;
}

.cart-item:hover {
    border-color: var(--border-primary);
}

.cart-item-image {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}

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

.cart-item-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.cart-item-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
}

.cart-item-meta {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.cart-item-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-item-price {
    font-weight: 600;
    color: var(--accent-primary);
    font-size: var(--text-lg);
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    padding: 0.25rem;
}

.quantity-controls button {
    width: 28px;
    height: 28px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.quantity-controls button:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
}

.quantity-controls span {
    min-width: 24px;
    text-align: center;
    font-weight: 600;
}

.cart-item-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.2s ease;
}

.cart-item-remove:hover {
    color: var(--error);
}

/* Empty Cart */
.empty-cart {
    text-align: center;
    padding: var(--space-2xl);
}

.empty-cart i {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.empty-cart p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

/* Loading State */
.loading-state {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--text-muted);
}

.loading-state i {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

/* ============================================
   PROMO CODE
   ============================================ */
.promo-code-section {
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
}

.promo-input-group {
    display: flex;
    gap: 0.5rem;
}

.promo-input-group input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: var(--text-base);
    text-transform: uppercase;
}

.promo-input-group input::placeholder {
    text-transform: none;
    color: var(--text-muted);
}

.promo-input-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.promo-message {
    margin: 0.5rem 0 0 0;
    font-size: var(--text-sm);
}

.promo-message.success {
    color: var(--success);
}

.promo-message.error {
    color: var(--error);
}

/* ============================================
   FORM STYLES (Step 2)
   ============================================ */
.checkout-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group label .required {
    color: var(--error);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: var(--text-base);
    font-family: inherit;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(var(--accent-primary-rgb), 0.1);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-group .error-message {
    font-size: var(--text-xs);
    color: var(--error);
    min-height: 1rem;
}

.form-group .helper-text {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.form-group.has-error input,
.form-group.has-error select {
    border-color: var(--error);
}

/* Phone Input */
.phone-input-group {
    display: flex;
    align-items: stretch;
}

.phone-prefix {
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-right: none;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.phone-input-group input {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    flex: 1;
}

/* Checkbox */
.checkbox-group {
    margin-top: var(--space-sm);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
}

/* ============================================
   PAYMENT METHODS (Step 3)
   ============================================ */
.payment-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.payment-method-card {
    display: block;
    cursor: pointer;
    background: var(--bg-secondary);
    border: 2px solid var(--border-secondary);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    transition: all 0.3s ease;
}

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

.payment-method-card.active,
.payment-method-card:has(input:checked) {
    border-color: var(--accent-primary);
    background: rgba(var(--accent-primary-rgb), 0.05);
}

.payment-method-card input[type="radio"] {
    display: none;
}

.payment-method-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

.payment-icons {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    color: var(--text-secondary);
}

.payment-icons .upi-logo {
    height: 24px;
    width: auto;
}

.recommended-badge {
    font-size: var(--text-xs);
    background: var(--gradient-accent);
    color: var(--bg-primary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.payment-method-content h4 {
    margin: 0;
    font-size: var(--text-lg);
    color: var(--text-primary);
}

.payment-method-content p {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.payment-features {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
}

.payment-features span {
    font-size: var(--text-xs);
    color: var(--success);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.cod-fee {
    font-size: var(--text-xs);
    color: var(--warning);
}

/* UPI Details */
.upi-details {
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
}



/* Trust Badges */
.trust-badges {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-secondary);
}

.trust-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
}

.trust-badge i {
    font-size: 1.5rem;
    color: var(--success);
}

.trust-badge span {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

@media (max-width: 600px) {
    .trust-badges {
        flex-wrap: wrap;
        gap: var(--space-md);
    }
}

/* ============================================
   ORDER SUCCESS (Step 4)
   ============================================ */
.order-success {
    text-align: center;
    padding: var(--space-xl) 0;
}

.success-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--space-lg);
    background: var(--success-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scaleIn 0.5s ease;
}

.success-icon i {
    font-size: 3rem;
    color: var(--success);
}

@keyframes scaleIn {
    from {
        transform: scale(0);
        opacity: 0;
    }

    50% {
        transform: scale(1.1);
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

.order-success h2 {
    font-size: var(--text-3xl);
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.order-id {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.order-id strong {
    color: var(--accent-primary);
}

.confirmation-message {
    color: var(--text-muted);
    margin-bottom: var(--space-xl);
}

.order-details-summary,
.delivery-info {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    text-align: left;
}

.order-details-summary h3,
.delivery-info h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.order-details-summary h3 i,
.delivery-info h3 i {
    color: var(--accent-primary);
}

.order-total-final {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-secondary);
    font-size: var(--text-lg);
}

.delivery-estimate {
    margin-top: var(--space-sm);
    color: var(--text-muted);
}

.confirmation-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ============================================
   ORDER SUMMARY SIDEBAR
   ============================================ */
.order-summary {
    position: sticky;
    top: calc(var(--header-h) + var(--space-md));
    height: fit-content;
}

.summary-card {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-secondary);
    padding: var(--space-lg);
    box-shadow: var(--shadow-lg);
}

.summary-card h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.summary-items {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: var(--space-md);
}

.summary-item {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border-secondary);
}

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

.summary-item-image {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}

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

.summary-item-details {
    flex: 1;
}

.summary-item-title {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
}

.summary-item-qty {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.summary-item-price {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--text-sm);
}

.summary-divider {
    height: 1px;
    background: var(--border-secondary);
    margin: var(--space-md) 0;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.summary-row.total-row {
    font-size: var(--text-lg);
    color: var(--text-primary);
    padding-top: var(--space-sm);
}

.summary-row.total-row strong {
    color: var(--accent-primary);
}

.discount-row {
    color: var(--success);
}

.summary-guarantee {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: var(--space-md);
    padding: var(--space-sm);
    background: rgba(var(--accent-primary-rgb), 0.1);
    border-radius: var(--radius-sm);
}

.summary-guarantee i {
    color: var(--success);
    font-size: 1.25rem;
}

.summary-guarantee p {
    margin: 0;
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* Support Card */
.support-card {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-secondary);
    padding: var(--space-md);
    margin-top: var(--space-md);
    text-align: center;
}

.support-card h4 {
    font-size: var(--text-base);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.support-card h4 i {
    color: var(--accent-primary);
}

.support-card p {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #25d366;
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.whatsapp-btn:hover {
    background: #128c7e;
    color: white;
    transform: translateY(-2px);
}

/* ============================================
   STEP ACTIONS
   ============================================ */
.step-actions {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-secondary);
}

.step-actions .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-size: var(--text-base);
    border: none;
}

.step-actions .btn-primary {
    background: var(--gradient-accent);
    color: var(--bg-primary);
    box-shadow: var(--shadow-accent);
}

.step-actions .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(var(--accent-primary-rgb), 0.4);
}

.step-actions .btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-secondary);
}

.step-actions .btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.step-actions .btn-large {
    padding: 1rem 2rem;
    font-size: var(--text-lg);
}

@media (max-width: 600px) {
    .step-actions {
        flex-direction: column-reverse;
    }

    .step-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
   LOADING OVERLAY
   ============================================ */
.checkout-loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.checkout-loading-overlay[hidden] {
    display: none;
}

.loading-content {
    text-align: center;
    color: var(--text-primary);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-secondary);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-md);
}

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

.loading-content p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
}

/* ============================================
   BUTTONS (General)
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-size: var(--text-sm);
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--bg-primary);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-secondary);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {

    header,
    footer,
    .checkout-progress,
    .step-actions,
    .support-card,
    .order-summary {
        display: none !important;
    }

    .checkout-page {
        background: white;
        padding: 0;
    }

    .checkout-steps {
        background: white;
        box-shadow: none;
        border: none;
    }

    .checkout-main {
        display: block;
    }
}