: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;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--tg-theme-bg-color);
    color: var(--tg-theme-text-color);
    padding: 20px;
    min-height: 100vh;
}

.container {
    max-width: 600px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

header h1 {
    font-size: 24px;
    font-weight: 600;
}

.card {
    background-color: var(--tg-theme-bg-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.card h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--tg-theme-text-color);
}

.user-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.user-info p {
    font-size: 14px;
    line-height: 1.5;
}

.user-info strong {
    color: var(--tg-theme-text-color);
}

.user-info span {
    color: var(--tg-theme-hint-color);
}

.btn {
    width: 100%;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s;
    margin-bottom: 10px;
}

.btn:active {
    opacity: 0.8;
}

.btn-primary {
    background-color: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
}

.btn-secondary {
    background-color: var(--tg-theme-hint-color);
    color: var(--tg-theme-bg-color);
}

.btn-info {
    background-color: #17a2b8;
    color: #ffffff;
}

.btn-warning {
    background-color: #ffc107;
    color: #000000;
}

/* Темная тема */
body.dark {
    --tg-theme-bg-color: #212121;
    --tg-theme-text-color: #ffffff;
    --tg-theme-hint-color: #707579;
}

body.dark .card {
    background-color: #2b2b2b;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}