/* ── ویجت چت پشتیبانی هوشمند ──────────────────────────────────────────────── */
.sc-fab {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 9998;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    background: var(--primary, #001e40);
    color: #fff;
    box-shadow: 0 10px 30px rgba(0, 30, 64, .35);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform .2s ease;
}
.sc-fab:hover { transform: translateY(-3px); }
.sc-fab svg { width: 26px; height: 26px; }

.sc-panel {
    position: fixed;
    bottom: 88px;
    left: 20px;
    z-index: 9999;
    width: min(380px, calc(100vw - 32px));
    height: min(560px, calc(100vh - 120px));
    background: rgba(255, 255, 255, .97);
    backdrop-filter: blur(18px);
    border: 1px solid var(--outline-variant, #c3c6d1);
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0, 30, 64, .18);
    display: none;
    flex-direction: column;
    overflow: hidden;
}
.sc-panel.is-open { display: flex; }

.sc-head {
    background: var(--primary, #001e40);
    color: #fff;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.sc-head strong { font-size: .95rem; }
.sc-head span { display: block; font-size: .75rem; opacity: .75; }
.sc-status {
    width: 9px; height: 9px; border-radius: 50%;
    background: #34d399; box-shadow: 0 0 0 3px rgba(52, 211, 153, .25);
}

.sc-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: var(--surface-container-low, #f4f3f8);
}

.sc-msg {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 16px;
    font-size: .86rem;
    line-height: 1.9;
    white-space: pre-wrap;
    word-break: break-word;
}
.sc-msg--user {
    align-self: flex-start;
    background: var(--primary, #001e40);
    color: #fff;
    border-bottom-right-radius: 4px;
}
.sc-msg--bot {
    align-self: flex-end;
    background: #fff;
    border: 1px solid var(--outline-variant, #e5e7eb);
    border-bottom-left-radius: 4px;
}
.sc-msg--operator {
    align-self: flex-end;
    background: var(--secondary-container, #6cf8bb);
    color: var(--on-secondary-container, #00714d);
    border-bottom-left-radius: 4px;
}
.sc-msg--system {
    align-self: center;
    background: transparent;
    color: var(--on-surface-variant, #43474f);
    font-size: .75rem;
    padding: 2px;
}

.sc-typing { align-self: flex-end; color: var(--on-surface-variant); font-size: .78rem; }

.sc-foot {
    border-top: 1px solid var(--outline-variant, #e5e7eb);
    background: #fff;
    padding: 10px 12px;
}
.sc-input-row { display: flex; gap: 8px; }
.sc-input {
    flex: 1;
    border: 1px solid #d1d5db;
    border-radius: 14px;
    padding: 10px 14px;
    font-family: inherit;
    font-size: .85rem;
    resize: none;
}
.sc-input:focus {
    outline: none;
    border-color: var(--inverse-primary, #a7c8ff);
    box-shadow: 0 0 0 4px rgba(167, 200, 255, .35);
}
.sc-send {
    border: none;
    border-radius: 14px;
    background: var(--primary, #001e40);
    color: #fff;
    padding: 0 16px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 700;
}
.sc-send:disabled { opacity: .5; cursor: default; }

.sc-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    justify-content: flex-end;
}
.sc-human-btn {
    border: 1px solid var(--primary, #001e40);
    background: transparent;
    color: var(--primary, #001e40);
    border-radius: 12px;
    padding: 6px 12px;
    font-family: inherit;
    font-size: .78rem;
    cursor: pointer;
}
.sc-human-form { display: none; gap: 6px; margin-top: 8px; }
.sc-human-form.is-visible { display: flex; }
.sc-human-form input {
    flex: 1;
    min-width: 0;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    padding: 7px 10px;
    font-family: inherit;
    font-size: .8rem;
}