:root {
    --cb-radius: 16px;
    --cb-border: #e5e7eb;
    --cb-soft: #f8fafc;
    --cb-shadow: 0 1px 2px rgba(0,0,0,.05),0 8px 30px rgba(0,0,0,.06);
    --cb-grad: linear-gradient(135deg,#eef2ff,#f5f3ff);
    --primary: #6366f1;
    --primary-600: #4f46e5;
    --text: #0f172a;
    --muted: #64748b;
    --star-empty: #cbd5e1;
    --star-full: #f59e0b;
}
.cbox {
    border: 1px solid var(--cb-border);
    border-radius: var(--cb-radius);
    background: #fff;
    box-shadow: var(--cb-shadow);
    padding: 18px;
    position: relative;
    overflow: hidden
}

    .cbox::before {
        content: "";
        position: absolute;
        inset: 0;
        background: var(--cb-grad);
        opacity: .28;
        pointer-events: none;
        mix-blend-mode: screen
    }

.cbox-title {
    margin: 0 0 10px;
    font-weight: 800;
    font-size: 18px;
    color: var(--text)
}

.cbox-locked {
    background: var(--cb-soft)
}

.cbox-locked-text {
    color: var(--muted);
    font-size: 14px
}

.cbox-form .form-row {
    margin: 12px 0
}

.label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text)
}

.cbox-textarea {
    width: 100%;
    min-height: 120px;
    border-radius: 12px;
    border: 1px solid var(--cb-border);
    padding: 12px 14px;
    font-size: 14px;
    transition: box-shadow .15s,border-color .15s;
    background: #fff
}

    .cbox-textarea:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(99,102,241,.22)
    }

.field-hint {
    margin-top: 6px;
    font-size: 12px;
    color: var(--muted)
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 14px
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border-radius: 12px;
    padding: 10px 16px;
    font-weight: 700;
    border: 1px solid transparent;
    cursor: pointer;
    user-select: none;
    transition: background .15s,opacity .15s
}

.btn-primary {
    background: var(--primary);
    color: #fff
}

    .btn-primary:hover {
        background: var(--primary-600)
    }

    .btn-primary:disabled {
        opacity: 0.5;
        cursor: not-allowed
    }
.rating-stars {
    display: inline-flex;
    gap: 8px;
    align-items: center;
    line-height: 1;
    user-select: none
}

    .rating-stars input {
        display: none
    }

    .rating-stars label {
        width: 28px;
        height: 28px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        color: var(--star-empty);
        transition: transform .12s,color .12s;
        filter: drop-shadow(0 1px 0 rgba(0,0,0,.06))
    }

        .rating-stars label::before {
            content: "★";
            font-size: 26px;
            line-height: 1
        }

        .rating-stars label.active {
            color: var(--star-full)
        }

        .rating-stars label:hover {
            transform: scale(1.06)
        }

.rating-hint {
    margin-top: 4px;
    font-size: 12px;
    color: var(--muted)
}

#charCount {
    font-weight: 600;
    color: var(--primary)
}