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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
    padding: 20px;
    min-height: 100vh;
}

.header {
    text-align: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--tg-theme-hint-color, #e0e0e0);
    margin-bottom: 20px;
}

.header h1 {
    font-size: 28px;
    margin-bottom: 8px;
}

#userInfo {
    color: var(--tg-theme-hint-color, #888888);
    font-size: 14px;
}

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

.settings-card, .snipe-card {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.settings-card h2, .snipe-card h2 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--tg-theme-text-color, #000000);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
    font-size: 14px;
    color: var(--tg-theme-hint-color, #666666);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--tg-theme-hint-color, #d0d0d0);
    border-radius: 8px;
    font-size: 14px;
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--tg-theme-button-color, #0088cc);
}

.btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    color: #ffffff;
}

.btn-primary {
    background: var(--tg-theme-button-color, #0088cc);
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-success {
    background: #28a745;
}

.btn-success:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.status-message {
    margin-top: 20px;
    padding: 12px;
    border-radius: 8px;
    display: none;
    font-weight: 500;
}

.status-message.success {
    display: block;
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.status-message.error {
    display: block;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.status-message.info {
    display: block;
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .settings-card, .snipe-card {
        padding: 15px;
    }
}