/* ========================================================================= */
/*                        PAYMENT PAGE STYLES                                */
/* ========================================================================= */

.payment-page {
    padding: var(--space-3xl) 0;
    margin-top: var(--space-2xl);
}

.payment-page__header {
    max-width: 1200px;
    margin: 0 auto var(--space-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.payment-page__back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-base);
    width: fit-content;
}

.payment-page__back:hover {
    color: var(--color-primary);
    transform: translateX(-4px);
}

.payment-page__back svg {
    transition: transform var(--transition-base);
}

.payment-page__back:hover svg {
    transform: translateX(-2px);
}

.page-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    text-align: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.payment-page__container {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--space-2xl);
    max-width: 1200px;
    margin: 0 auto;
}

.payment-page__main {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.payment-page__section {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.payment-page__section-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.payment-page__input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.payment-page__input-group label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
}

.payment-page__hint {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.payment-page__sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.payment-page__submit {
    width: 100%;
    padding: var(--space-lg);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--text-primary);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
}

.payment-page__submit:hover:not(:disabled) {
    background: linear-gradient(135deg, #7b8ff7, #8a5ac5);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

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

.payment-page__info {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.payment-page__info svg {
    flex-shrink: 0;
    color: #3b82f6;
    margin-top: 2px;
}

.payment__error {
    padding: var(--space-md);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-lg);
    color: #ef4444;
    font-size: var(--font-size-sm);
}

/* Tier Styles */
.payment__tiers {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--space-md);
}

.payment__tier {
    background: var(--bg-card);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.payment__tier:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.payment__tier.active {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15), rgba(118, 75, 162, 0.15));
}

.payment__tier-amount {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.payment__tier-bonus {
    display: inline-block;
    padding: 2px var(--space-xs);
    background: rgba(16, 185, 129, 0.15);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: #10b981;
}

.payment__tier.active .payment__tier-bonus {
    background: rgba(16, 185, 129, 0.3);
}

/* Amount Input */
.payment__amount-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.payment__amount-wrapper input {
    width: 100%;
    padding: var(--space-md);
    padding-right: 60px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-base);
}

.payment__amount-wrapper input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.payment__currency {
    position: absolute;
    right: var(--space-lg);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-muted);
    pointer-events: none;
}

/* Summary */
.payment__summary {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.payment__summary__header {
    padding: var(--space-md) var(--space-lg);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.payment__summary__body {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.payment__summary__total {
    padding: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
}

.payment__summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.payment__summary-row strong {
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
}

.payment__summary-row--bonus {
    color: #10b981;
}

.payment__summary-row--bonus strong {
    color: #10b981;
}

.payment__summary__total-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.payment__total-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.payment__summary-divider {
    height: 1px;
    background: var(--border-primary);
    margin: 0;
}

/* Payment Methods */
.payment__methods {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.payment__method input[type="radio"] {
    display: none;
}

.payment__method-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    background: var(--bg-secondary);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
}

.payment__method-card svg {
    color: var(--text-muted);
    transition: color var(--transition-base);
}

.payment__method-card span {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    font-size: var(--font-size-base);
}

.payment__method-card small {
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}

.payment__method-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.payment__method-card:hover svg {
    color: var(--color-primary);
}

.payment__method input[type="radio"]:checked + .payment__method-card {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
}

.payment__method input[type="radio"]:checked + .payment__method-card svg {
    color: var(--color-primary);
}

.payment__alert {
    padding: var(--space-sm) var(--space-md);
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: var(--radius-lg);
    color: #fbbf24;
    font-size: var(--font-size-xs);
    text-align: center;
    margin-top: var(--space-md);
}

/* Responsive */
@media (max-width: 1024px) {
    .payment-page__container {
        grid-template-columns: 1fr;
    }
    
    .payment-page__sidebar {
        order: -1;
    }
}

@media (max-width: 768px) {
    .payment-page {
        padding: var(--space-2xl) 0;
        margin-top: var(--space-lg);
    }

    .payment-page__header {
        padding: 0 var(--space-md);
    }

    .page-title {
        font-size: var(--font-size-2xl);
    }

    .payment__tiers {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .payment__methods {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .payment-page__section {
        padding: var(--space-md);
    }
    
    .payment__tiers {
        grid-template-columns: 1fr;
    }

    .page-title {
        font-size: var(--font-size-xl);
    }
}