* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #eef0f3;
    color: #1a1a1a;
}
.bb-wrap {
    display: flex;
    justify-content: center;
    padding: 40px 16px;
}
.bb-card {
    background: #fff;
    border-radius: 16px;
    padding: 32px;
    max-width: 640px;
    width: 100%;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}
h1 { font-size: 22px; margin: 0 0 24px; }

.bb-field { margin-bottom: 22px; }
label, legend { display: block; font-weight: 600; margin-bottom: 8px; font-size: 14px; padding: 0; }

input[type=text], input[type=email], input[type=tel], input[type=number], select, textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
}
textarea { resize: vertical; }

fieldset { border: none; padding: 0; margin: 0 0 22px; }
.bb-radio { font-weight: 400; display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.bb-radio input { width: auto; }

.bb-input-error { border-color: #c0392b; }
.bb-error-text { color: #c0392b; font-size: 13px; margin: 6px 0 0; font-weight: 600; }

.bb-alert {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}
.bb-alert-success { background: #eaf6ea; border: 1px solid #2e7d32; color: #1b4d1e; }
.bb-alert-error   { background: #fdecea; border: 1px solid #c0392b; color: #7c1f13; }
.bb-alert-icon { font-weight: 700; }

.bb-submit {
    width: 100%;
    padding: 14px;
    background: #111;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}
.bb-submit:hover { background: #333; }