/* ============================================
   KIDA - Checkout Page Styles
   ============================================ */

.checkout-body {
    background: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ======== HEADER ======== */
.checkout-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.checkout-logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-display), cursive;
    text-decoration: none;
}

.checkout-secure-badge {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--color-success);
    font-weight: 500;
}

/* ======== MAIN LAYOUT ======== */
.checkout-main {
    flex: 1;
    padding: 3rem 2rem;
}

.checkout-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 440px 1fr;
    gap: 2.5rem;
    align-items: start;
}

/* ======== LEFT: ORDER SUMMARY ======== */
.checkout-summary {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: 2rem;
    position: sticky;
    top: 90px;
}

.checkout-summary-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
}

.checkout-plan-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.3rem;
}

.checkout-summary-header h2 {
    font-size: 1.2rem;
    margin-bottom: 0.2rem;
}

.checkout-summary-header p {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.4;
}

/* Plan Selector */
.checkout-plan-selector {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
}

.plan-option {
    cursor: pointer;
    display: block;
}

.plan-option input {
    display: none;
}

.plan-option-card {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.2rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    transition: var(--transition);
}

.plan-option.selected .plan-option-card {
    border-color: var(--color-primary);
    background: rgba(255, 142, 83, 0.04);
    box-shadow: 0 0 0 3px rgba(255, 142, 83, 0.1);
}

.plan-option:hover .plan-option-card {
    border-color: var(--color-primary-light);
}

.plan-best-value {
    position: absolute;
    top: -10px;
    left: 1rem;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.6rem;
    border-radius: 50px;
}

.plan-option-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-text);
    display: block;
}

.plan-option-desc {
    font-size: 0.78rem;
    color: var(--color-text-light);
    display: block;
    margin-top: 1px;
}

.plan-option-price {
    text-align: right;
}

.plan-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text);
}

.plan-price-period {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

/* User Count Selector */
.checkout-users-selector {
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 1rem 1.2rem;
    margin-bottom: 1.2rem;
}

.users-selector-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.8rem;
}

.users-selector-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text);
}

.users-selector-hint {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.users-stepper {
    display: flex;
    align-items: center;
    gap: 1rem;
    justify-content: center;
}

.stepper-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1.5px solid var(--color-border);
    background: var(--color-white);
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.stepper-btn:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(255, 142, 83, 0.05);
}

.stepper-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.stepper-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}

.stepper-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

.stepper-label {
    font-size: 0.72rem;
    color: var(--color-text-light);
    margin-top: 2px;
}

.users-extra-note {
    display: flex;
    align-items: flex-start;
    gap: 0.4rem;
    margin-top: 0.8rem;
    font-size: 0.78rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

.users-extra-note i {
    flex-shrink: 0;
    margin-top: 1px;
    color: var(--color-primary);
}

/* Price Breakdown */
.checkout-price-breakdown {
    padding: 1.2rem 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
}

.price-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    padding: 0.3rem 0;
    color: var(--color-text-light);
}

.price-row--total {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--color-text);
    padding-top: 0.8rem;
    margin-top: 0.5rem;
    border-top: 1px solid var(--color-border);
}

.price-renewal-note {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: 0.8rem;
    line-height: 1.5;
}

/* Feature List */
.checkout-features-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.8rem;
}

.checkout-feature-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.checkout-feature-list li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.88rem;
    color: var(--color-text);
}

.checkout-feature-list li i {
    color: var(--color-success);
    flex-shrink: 0;
}

/* Guarantee */
.checkout-guarantee {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    padding: 1rem;
    background: #F0FFF4;
    border: 1px solid #C6F6D5;
    border-radius: var(--radius-sm);
}

.checkout-guarantee > i {
    color: var(--color-success);
    flex-shrink: 0;
    margin-top: 2px;
}

.checkout-guarantee strong {
    font-size: 0.88rem;
    color: #276749;
    display: block;
    margin-bottom: 0.2rem;
}

.checkout-guarantee p {
    font-size: 0.8rem;
    color: #276749;
    line-height: 1.5;
}

/* ======== RIGHT: FORM PANEL ======== */
.checkout-form-panel {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: 2.5rem;
}

.checkout-form-wrapper h1 {
    font-size: 1.6rem;
    margin-bottom: 0.4rem;
}

.checkout-form-subtitle {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    line-height: 1.5;
}

/* Auth Status */
.checkout-auth-status {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 1.2rem;
    margin-bottom: 2rem;
}

.auth-status-loading {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

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

.auth-status-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.auth-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.auth-user-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.auth-user-info span:first-child {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
}

.auth-user-info span:last-child {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

.auth-change-link {
    font-size: 0.82rem;
    color: var(--color-primary);
    font-weight: 500;
    text-decoration: none;
}

.auth-change-link:hover {
    text-decoration: underline;
}

.auth-status-guest p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.auth-guest-actions {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

/* Stripe Section */
.checkout-stripe-info {
    margin-bottom: 1.5rem;
    padding: 1.2rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.stripe-logos {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.8rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.stripe-logos img {
    height: 22px;
    display: inline-block;
}

.stripe-cards {
    display: flex;
    gap: 0.4rem;
}

.card-badge {
    display: inline-block;
    padding: 0.15rem 0.4rem;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.03em;
}

.stripe-desc {
    font-size: 0.8rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

.checkout-pay-btn {
    width: 100%;
    justify-content: center;
    font-size: 1.05rem;
    padding: 1.1rem;
    margin-bottom: 1rem;
}

.checkout-terms {
    font-size: 0.75rem;
    color: var(--color-text-light);
    line-height: 1.6;
    text-align: center;
}

.checkout-terms a {
    color: var(--color-primary);
    text-decoration: underline;
}

/* Already Premium */
.already-premium-msg {
    text-align: center;
    padding: 2rem 1rem;
}

.already-premium-icon {
    width: 64px;
    height: 64px;
    border-radius: 20px;
    background: linear-gradient(135deg, #FFF3E0, #FFE0B2);
    color: #E65100;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin: 0 auto 1rem;
}

.already-premium-msg h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.already-premium-msg p {
    font-size: 0.95rem;
    color: var(--color-text-light);
}

/* ======== FOOTER ======== */
.checkout-footer {
    padding: 1.5rem 2rem;
    text-align: center;
    border-top: 1px solid var(--color-border);
}

.checkout-footer p {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

.checkout-footer a {
    color: var(--color-text-light);
    text-decoration: underline;
}

/* ======== RESPONSIVE ======== */
@media (max-width: 900px) {
    .checkout-container {
        grid-template-columns: 1fr;
        max-width: 560px;
    }

    .checkout-summary {
        position: static;
    }
}

@media (max-width: 480px) {
    .checkout-main {
        padding: 1.5rem 1rem;
    }

    .checkout-form-panel {
        padding: 1.5rem;
    }

    .checkout-summary {
        padding: 1.5rem;
    }

    .auth-guest-actions {
        flex-direction: column;
    }
}

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