/* ===== МИНИМАЛИСТИЧНАЯ МОДАЛКА УЛУЧШЕНИЯ ===== */

.upgrade-confirmation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.upgrade-confirmation.active {
    opacity: 1;
    pointer-events: all;
}

.confirmation-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
}

.upgrade-confirmation .confirmation-modal-content {
    position: relative;
    max-width: 340px;
    width: 90%;
    background: var(--surface);
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalAppear 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border);
    overflow: hidden;
    z-index: 10001;
}

/* Заголовок */
.upgrade-header {
    text-align: center;
    margin-bottom: 10px;
}

.upgrade-title-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 6px;
}

.upgrade-icon {
    font-size: 1.4em;
    color: var(--primary);
}

.upgrade-header h3 {
    margin: 0;
    font-size: 1.3em;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.upgrade-subtitle {
    margin: 0;
    font-size: 0.9em;
    color: var(--text-secondary);
    font-weight: 400;
}

/* NFT в одной строке */
.upgrade-nft-compact {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    background: var(--surface-dark);
    border-radius: 18px;
    margin-bottom: 8px;
    border: 1px solid var(--border);
    transition: transform 0.2s ease;
}

.nft-image-small {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    overflow: hidden;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8em;
}

.nft-details-compact {
    flex: 1;
    min-width: 0;
}

.nft-name-line {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.nft-name {
    font-weight: 600;
    color: var(--text-primary-nft);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.nft-number {
    font-size: 0.9em;
    color: var(--text-secondary);
    background: var(--surface);
    padding: 3px 8px;
    border-radius: 8px;
    font-weight: 500;
}

.nft-collection {
    font-size: 0.85em;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Карточки информации */
.upgrade-info-cards {
    display: grid;
    gap: 12px;
    margin-bottom: 10px;
}

.info-card {
    background: var(--surface-dark);
    border-radius: 16px;
    padding: 10px;
    border: 1px solid var(--border);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.info-card.highlight {
    background: linear-gradient(135deg, var(--surface-dark) 0%, rgba(76, 175, 80, 0.05) 100%);
    border-color: rgba(76, 175, 80, 0.2);
}

.info-label {
    font-size: 0.85em;
    color: var(--text-secondary);
    font-weight: 500;
    letter-spacing: 0.02em;
}

.info-value {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.price-value {
    color: #FFD700;
}

.star-icon {
    font-size: 1.1em;
}

.rarity-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 0.9em;
    font-weight: 600;
    border: 1px solid;
}

/* Уведомление */
.upgrade-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background: rgba(255, 193, 7, 0.08);
    border-radius: 14px;
    color: #ffc107;
    font-size: 0.85em;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 193, 7, 0.2);
}

.notice-icon {
    font-size: 1.1em;
}

/* Кнопки */
.upgrade-actions {
    display: flex;
    gap: 12px;
}

.action-btn {
    flex: 1;
    padding: 16px;
    border: none;
    border-radius: 16px;
    font-size: 1em;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 52px;
}

.btn-text {
    font-weight: 600;
}

.btn-price {
    font-weight: 500;
    opacity: 0.9;
    font-size: 0.95em;
}

/* Мини-спиннер */
.mini-spinner {
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 2px solid white;
    width: 20px;
    height: 20px;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Анимация появления */
@keyframes modalAppear {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.cancel-btn {
    background: var(--accent);
}

.confirm-btn {
    background: var(--confirm);
}