* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
    padding: 0;
    margin: 0;
}

#app {
    max-width: 100%;
    margin: 0 auto;
}

/* Заголовок */
.header {
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid var(--tg-theme-hint-color, #ccc);
}

.header h1 {
    font-size: 24px;
    margin-bottom: 8px;
}

.user-info {
    font-size: 14px;
    color: var(--tg-theme-hint-color, #999);
}

/* Табы */
.tabs {
    display: flex;
    background: var(--tg-theme-bg-color, #fff);
    border-bottom: 1px solid var(--tg-theme-hint-color, #ccc);
    overflow-x: auto;
}

.tab {
    flex: 1;
    padding: 15px;
    border: none;
    background: transparent;
    color: var(--tg-theme-text-color, #000);
    font-size: 14px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.3s;
}

.tab:hover {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
}

.tab.active {
    color: var(--tg-theme-button-color, #3390ec);
    border-bottom-color: var(--tg-theme-button-color, #3390ec);
}

/* Контент табов */
.tab-content {
    padding: 16px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Карточки статистики */
.stats-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

/* Адаптация для 3 карточек */
.stats-cards .stat-card:nth-child(3) {
    grid-column: 1 / -1;
}

@media (min-width: 600px) {
    .stats-cards {
        grid-template-columns: repeat(3, 1fr);
    }

    .stats-cards .stat-card:nth-child(3) {
        grid-column: auto;
    }
}

.stat-card {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    padding: 16px;
    border-radius: 12px;
    text-align: center;
}

.stat-label {
    font-size: 14px;
    color: var(--tg-theme-hint-color, #999);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: bold;
    color: var(--tg-theme-button-color, #3390ec);
    margin-bottom: 4px;
}

.stat-amount {
    font-size: 18px;
    font-weight: 600;
    color: var(--tg-theme-text-color, #000);
}

/* Статистика по проектам */
.project-stats {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    padding: 16px;
    border-radius: 12px;
}

.project-stats h3 {
    font-size: 16px;
    margin-bottom: 12px;
}

.project-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--tg-theme-hint-color, #e0e0e0);
}

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

.project-name {
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.project-stats-data {
    text-align: right;
}

.project-count {
    font-size: 14px;
    color: var(--tg-theme-hint-color, #999);
}

.project-amount {
    font-size: 18px;
    font-weight: bold;
    color: var(--tg-theme-button-color, #3390ec);
}

/* Список платежей */
.payments-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.payment-card {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    padding: 16px;
    border-radius: 12px;
    position: relative;
}

.payment-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.payment-project {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #fff);
}

.payment-amount {
    font-size: 20px;
    font-weight: bold;
    color: var(--tg-theme-button-color, #3390ec);
}

.payment-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.payment-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.payment-label {
    color: var(--tg-theme-hint-color, #999);
    min-width: 80px;
}

.payment-value {
    color: var(--tg-theme-text-color, #000);
    word-break: break-all;
}

.payment-id {
    font-size: 12px;
    color: var(--tg-theme-hint-color, #999);
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--tg-theme-hint-color, #e0e0e0);
}

/* Загрузка */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--tg-theme-hint-color, #999);
}

/* Ошибка */
.error {
    background: #fee;
    color: #c33;
    padding: 12px;
    border-radius: 8px;
    margin: 12px 0;
    text-align: center;
}

/* Пустое состояние */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--tg-theme-hint-color, #999);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

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

.payment-card {
    animation: fadeIn 0.3s ease-out;
}