:root {
    --tg-theme-bg-color: #ffffff;
    --tg-theme-text-color: #000000;
    --tg-theme-hint-color: #999999;
    --tg-theme-link-color: #2481cc;
    --tg-theme-button-color: #2481cc;
    --tg-theme-button-text-color: #ffffff;
    --tg-theme-secondary-bg-color: #f5f5f5;
    --accent-color: #2481cc;
    --chart-color-1: #2481cc;
    --chart-color-2: #54a9eb;
    --chart-color-3: #95c9f5;
    --chart-color-4: #d2e5f7;
    --chart-color-5: #f0f7fd;
    --positive-color: #4CAF50;
    --negative-color: #F44336;
    --border-radius: 10px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
    background-color: var(--tg-theme-bg-color);
    color: var(--tg-theme-text-color);
    padding: 16px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

#app {
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

header {
    text-align: center;
    margin-bottom: 24px;
}

header h1 {
    font-size: 28px;
    margin-bottom: 4px;
}

.subtitle {
    color: var(--tg-theme-hint-color);
    font-size: 16px;
}

.section {
    margin-bottom: 24px;
}

h2 {
    font-size: 22px;
    margin-bottom: 16px;
}

h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.list-container {
    background-color: var(--tg-theme-secondary-bg-color);
    border-radius: var(--border-radius);
    padding: 16px;
    margin-bottom: 16px;
    min-height: 100px;
}

.channel-item {
    display: flex;
    align-items: center;
    padding: 12px;
    border-radius: var(--border-radius);
    background-color: var(--tg-theme-bg-color);
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.channel-item:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.channel-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--accent-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 12px;
}

.channel-info {
    flex: 1;
}

.channel-name {
    font-weight: bold;
    margin-bottom: 4px;
}

.channel-stats {
    font-size: 14px;
    color: var(--tg-theme-hint-color);
}

.back-button {
    color: var(--tg-theme-link-color);
    margin-bottom: 16px;
    cursor: pointer;
    display: inline-block;
}

.tabs {
    display: flex;
    overflow-x: auto;
    margin-bottom: 16px;
    white-space: nowrap;
    border-bottom: 1px solid var(--tg-theme-hint-color);
}

.tab {
    padding: 10px 16px;
    cursor: pointer;
    color: var(--tg-theme-hint-color);
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
}

.tab.active {
    color: var(--accent-color);
    border-bottom: 2px solid var(--accent-color);
}

.tab-content {
    display: none;
}

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

.chart-container {
    background-color: var(--tg-theme-secondary-bg-color);
    padding: 16px;
    border-radius: var(--border-radius);
    margin-bottom: 16px;
}

.chart {
    width: 100%;
    height: 200px;
    background-color: var(--tg-theme-bg-color);
    border-radius: 8px;
    overflow: hidden;
}

.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

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

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

.stat-value {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 4px;
}

.stat-change {
    font-size: 14px;
}

.positive {
    color: var(--positive-color);
}

.negative {
    color: var(--negative-color);
}

.data-table {
    background-color: var(--tg-theme-secondary-bg-color);
    padding: 16px;
    border-radius: var(--border-radius);
    margin-bottom: 16px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

th {
    font-weight: bold;
}

.tg-button {
    background-color: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
    border: none;
    padding: 12px 20px;
    border-radius: var(--border-radius);
    font-size: 16px;
    cursor: pointer;
    width: 100%;
    transition: all 0.2s;
}

.tg-button:hover {
    opacity: 0.9;
}

.loader {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top: 4px solid var(--accent-color);
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

/* Адаптация для темной темы Telegram */
body.dark-theme {
    --tg-theme-bg-color: #212121;
    --tg-theme-text-color: #ffffff;
    --tg-theme-hint-color: #aaaaaa;
    --tg-theme-link-color: #54a9eb;
    --tg-theme-button-color: #54a9eb;
    --tg-theme-button-text-color: #ffffff;
    --tg-theme-secondary-bg-color: #333333;
}

/* Адаптивная верстка */
@media (min-width: 768px) {
    .stat-cards {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .chart {
        height: 300px;
    }
}