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

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

.container {
    max-width: 500px;
    margin: 0 auto;
}

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

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

.header p {
    color: var(--tg-theme-hint-color, #666);
    font-size: 14px;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

label {
    font-weight: 500;
    font-size: 14px;
    margin-bottom: 4px;
    display: block;
}

input, select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--tg-theme-hint-color, #ccc);
    border-radius: 12px;
    font-size: 16px;
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    color: var(--tg-theme-text-color, #000);
    outline: none;
    transition: border 0.2s;
}

input:focus, select:focus {
    border-color: var(--tg-theme-button-color, #2481cc);
}

.radio-group {
    display: flex;
    gap: 20px;
}

.radio {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.radio input {
    width: auto;
}

.quality-group {
    display: none;
}

.quality-group.show {
    display: block;
}

.btn-primary {
    background: var(--tg-theme-button-color, #2481cc);
    color: var(--tg-theme-button-text-color, #ffffff);
    border: none;
    padding: 14px 20px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-primary:hover {
    opacity: 0.9;
}

.status {
    margin-top: 20px;
    padding: 12px;
    border-radius: 12px;
    text-align: center;
    font-size: 14px;
    display: none;
}

.status.success {
    background: #d4edda;
    color: #155724;
    display: block;
}

.status.error {
    background: #f8d7da;
    color: #721c24;
    display: block;
}

.status.info {
    background: #d1ecf1;
    color: #0c5460;
    display: block;
}

.footer {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--tg-theme-hint-color, #eee);
    font-size: 12px;
    color: var(--tg-theme-hint-color, #666);
}