:root {
    --fb-brand: #446084;
    --fb-accent: #ff6b35;
    --fb-bg: #eef2f7;
    --fb-card: #fff;
    --fb-text: #1e293b;
    --fb-muted: #64748b;
    --fb-border: #cbd5e1;
    --fb-success: #166534;
}

* { box-sizing: border-box; }

body.fb-page {
    margin: 0;
    font-family: Tahoma, 'Vazirmatn', 'Segoe UI', sans-serif;
    background: radial-gradient(circle at 10% 0%, rgba(68, 96, 132, 0.08), transparent 40%), var(--fb-bg);
    color: var(--fb-text);
    line-height: 1.65;
}

.fb-shell {
    max-width: 560px;
    margin: 0 auto;
    padding: 24px 16px 48px;
}

.fb-card {
    background: var(--fb-card);
    border: 2px solid var(--fb-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.fb-card--center {
    padding: 36px 24px;
    text-align: center;
}

.fb-accent {
    height: 5px;
    background: linear-gradient(90deg, var(--fb-accent), #ff955f, var(--fb-accent));
}

.fb-header {
    padding: 22px 22px 10px;
    text-align: center;
}

.fb-badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--fb-brand);
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 999px;
    padding: 4px 12px;
    margin-bottom: 10px;
}

.fb-header h1 {
    margin: 0 0 8px;
    font-size: 1.15rem;
    color: var(--fb-brand);
}

.fb-intro {
    margin: 0;
    color: var(--fb-muted);
    font-size: 0.92rem;
}

.fb-meta {
    margin: 0 22px 16px;
    padding: 12px 14px;
    background: #f8fafc;
    border: 1px dashed var(--fb-border);
    border-radius: 8px;
    font-size: 0.88rem;
}

.fb-meta p {
    margin: 4px 0;
}

.fb-meta span {
    color: var(--fb-muted);
    font-weight: 600;
}

.fb-form {
    padding: 0 22px 24px;
}

.fb-label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--fb-brand);
}

.fb-stars {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 6px;
}

.fb-star-btn,
.fb-star {
    font-size: 2rem;
    line-height: 1;
    color: #cbd5e1;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.fb-star-btn.is-on,
.fb-star.is-on {
    color: #f59e0b;
}

.fb-stars--readonly .fb-star {
    cursor: default;
}

.fb-rating-hint,
.fb-rating-label {
    text-align: center;
    color: var(--fb-muted);
    font-size: 0.88rem;
    margin: 0 0 18px;
}

.fb-form textarea {
    width: 100%;
    border: 1.5px solid var(--fb-border);
    border-radius: 8px;
    padding: 12px;
    font: inherit;
    resize: vertical;
    margin-bottom: 16px;
}

.fb-btn {
    display: inline-block;
    border: none;
    border-radius: 8px;
    padding: 12px 18px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
}

.fb-btn--primary {
    width: 100%;
    background: linear-gradient(135deg, var(--fb-brand), #2f4563);
    color: #fff;
}

.fb-btn--primary:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.fb-btn--ghost {
    background: #fff;
    border: 1.5px solid var(--fb-border);
    color: var(--fb-brand);
}

.fb-error {
    margin: 0 22px 12px;
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fca5a5;
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.88rem;
}

.fb-thanks {
    padding: 10px 22px 28px;
    text-align: center;
}

.fb-thanks-icon {
    font-size: 2.4rem;
    margin-bottom: 8px;
}

.fb-thanks h2 {
    margin: 0 0 8px;
    color: var(--fb-success);
}

.fb-thanks p {
    color: var(--fb-muted);
}

.fb-comment-preview {
    margin: 14px 0;
    padding: 12px;
    background: #f8fafc;
    border-radius: 8px;
    color: var(--fb-text);
    font-style: normal;
}

@media (max-width: 480px) {
    .fb-star-btn,
    .fb-star {
        font-size: 1.75rem;
    }
}

/* ── Widget on site ── */
.fb-widget {
    position: relative;
    z-index: 2;
    margin: 0;
    padding: 28px 0 36px;
    background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
    border-top: 1px solid #e2e8f0;
}

.fb-widget__inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
}

.fb-widget__head {
    margin-bottom: 14px;
}

.fb-widget__title {
    margin: 0 0 4px;
    font-size: 1.15rem;
    color: var(--fb-brand, #446084);
}

.fb-widget__meta {
    margin: 0;
    color: var(--fb-muted, #64748b);
    font-size: 0.88rem;
}

.fb-widget__track {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 6px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.fb-widget__card {
    flex: 0 0 min(300px, 85vw);
    scroll-snap-align: start;
    background: #fff;
    border: 1px solid #dbe3ee;
    border-radius: 12px;
    padding: 14px 16px;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.05);
}

.fb-widget__stars {
    display: flex;
    gap: 2px;
    margin-bottom: 8px;
}

.fb-widget__star {
    color: #cbd5e1;
    font-size: 1rem;
}

.fb-widget__star.is-on {
    color: #f59e0b;
}

.fb-widget__text {
    margin: 0 0 10px;
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--fb-text, #1e293b);
}

.fb-widget__text--muted {
    color: var(--fb-muted, #64748b);
    font-style: italic;
}

.fb-widget__foot {
    font-size: 0.8rem;
    color: var(--fb-muted, #64748b);
}

.fb-widget__foot strong {
    color: var(--fb-brand, #446084);
}