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

:root {
    --bg-color: var(--tg-theme-bg-color, #ffffff);
    --text-color: var(--tg-theme-text-color, #000000);
    --hint-color: var(--tg-theme-hint-color, #999999);
    --link-color: var(--tg-theme-link-color, #2481cc);
    --button-color: var(--tg-theme-button-color, #2481cc);
    --button-text-color: var(--tg-theme-button-text-color, #ffffff);
    --secondary-bg-color: var(--tg-theme-secondary-bg-color, #f1f1f1);
    --header-bg-color: var(--tg-theme-header-bg-color, #ffffff);
    --section-bg-color: var(--tg-theme-section-bg-color, #ffffff);
    --section-header-text-color: var(--tg-theme-section-header-text-color, #000000);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 0;
    margin: 0;
    min-height: 100vh;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

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

.header h1 {
    font-size: 32px;
    margin-bottom: 10px;
    color: var(--text-color);
}

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

.card {
    background-color: var(--section-bg-color);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.card h2 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--section-header-text-color);
}

.user-card {
    background: linear-gradient(135deg, var(--button-color) 0%, var(--link-color) 100%);
    color: var(--button-text-color);
}

.user-card h2 {
    color: var(--button-text-color);
}

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

.user-info p {
    margin: 5px 0;
    font-size: 14px;
}

.actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

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

.btn-primary:active {
    transform: scale(0.98);
    opacity: 0.9;
}

.btn-secondary {
    background-color: var(--secondary-bg-color);
    color: var(--text-color);
}

.btn-secondary:active {
    transform: scale(0.98);
    opacity: 0.9;
}

.counter {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 20px 0;
}

.btn-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--button-color);
    background-color: transparent;
    color: var(--button-color);
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:active {
    transform: scale(0.95);
    background-color: var(--button-color);
    color: var(--button-text-color);
}

.counter-value {
    font-size: 36px;
    font-weight: bold;
    color: var(--text-color);
    min-width: 60px;
    text-align: center;
}

.message-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.input {
    padding: 12px 16px;
    border: 2px solid var(--secondary-bg-color);
    border-radius: 12px;
    font-size: 16px;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: border-color 0.3s ease;
}

.input:focus {
    outline: none;
    border-color: var(--button-color);
}

.input::placeholder {
    color: var(--hint-color);
}

/* Анимация загрузки */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Адаптивность */
@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    
    .header h1 {
        font-size: 28px;
    }
    
    .card {
        padding: 15px;
    }
}