:root {
    --vs-primary: #2b59ff;
    --vs-primary-2: #6b8cff;
    --vs-danger: #ef4444;
    --vs-bg: #f6f7fb;
    --vs-bubble-bot: #ffffff;
    --vs-bubble-user: #2b59ff;
    --vs-text: #1f2937;
    --vs-text-muted: #6b7280;
    --vs-border: #e7e9f3;
}

/* FAB */
.vs-btn-fab {
    position: fixed !important;
    bottom: 22px !important;
    left: 22px !important;
    top: auto !important;
    z-index: 2147483647 !important;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 0;
    box-shadow: 0 14px 30px rgba(0,0,0,.2);
    transition: transform .28s ease, opacity .28s ease;
}

    .vs-btn-fab img {
        width: 64px;
        height: 64px;
        pointer-events: none;
        border-radius: 50%
    }

    .vs-btn-fab.hide-fab {
        transform: translateY(120px);
        opacity: 0;
        pointer-events: none
    }

/* Teaser */
.vs-teaser {
    position: fixed;
    bottom: 100px;
    left: 22px;
    z-index: 2147483646;
    display: none
}

    .vs-teaser .vs-teaser-bubble {
        background: #fff;
        border: 1px solid var(--vs-border);
        border-radius: 12px;
        padding: 10px 12px;
        font-size: 14px;
        box-shadow: 0 14px 36px rgba(0,0,0,.12)
    }

    .vs-teaser .vs-teaser-tail {
        width: 12px;
        height: 12px;
        background: #fff;
      /*  border-left: 1px solid var(--vs-border);
        border-bottom: 1px solid var(--vs-border);*/
        position: absolute;
        bottom: -6px;
        left: 18px;
        transform: rotate(45deg)
    }

    .vs-teaser .vs-teaser-close {
        position: absolute;
        top: -8px;
        left: -8px;
        width: 22px;
        height: 22px;
        border-radius: 50%;
        background: #fff;
        border: 0;
        color: #888;
        cursor: pointer;
        box-shadow: 0 2px 8px rgba(0,0,0,.15)
    }

    .vs-teaser.hide {
        opacity: 0;
        transform: translateY(6px);
        pointer-events: none;
        transition: all .2s
    }

/* Chatbox */
.vs-chatbox {
    position: fixed;
    bottom: 86px;
    left: 22px;
    width: 380px;
    max-height: 82vh; /* ← بلندتر */
    z-index: 2147483645;
    display: none;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(34,45,90,.25);
    font-family: estedad, Vazirmatn, Segoe UI, Tahoma, sans-serif;
    display: flex;
    min-height: 450px;
    flex-direction: column; /* ستون امن بدون calc(...) */
}

@media (max-width:480px) {
    .vs-chatbox {
        left: 10px;
        right: 10px;
        width: auto
    }
}

/* Header */
.vs-header {
    background: linear-gradient(135deg,var(--vs-primary),#182ea8);
    color: #fff;
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 0 0 auto
}

.vs-brand {
    display: flex;
    align-items: center;
    gap: 12px
}

.vs-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #fff
}

.vs-title {
    font-weight: 800;
    font-size: 15px
}

.vs-sub {
    font-size: 12px;
    opacity: .85
}

.vs-close {
    background: transparent;
    border: 0;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    opacity: .9
}

    .vs-close:hover {
        opacity: 1
    }

/* Messages fill */
.vs-messages {
    background: var(--vs-bg);
    padding: 14px;
    flex: 1 1 auto;
    min-height: 0;
    overflow: auto
}

.vs-msg {
    display: flex;
    margin: 10px 0
}

.vs-bot {
    justify-content: flex-start
}

.vs-user {
    justify-content: flex-end
}

/* Bubbles */
.vs-bubble {
    line-height: 1.85;
    font-size: 14px;
   /* white-space: pre-wrap;*/
    max-width: 84%;
    padding: 10px 12px;
    border-radius: 14px
}

.vs-bot .vs-bubble {
    background: var(--vs-bubble-bot);
    color: var(--vs-text);
    border: 1px solid var(--vs-border);
    box-shadow: 0 6px 18px rgba(0,0,0,.05)
}

.vs-user .vs-bubble {
    background: var(--vs-bubble-user);
    color: #fff;
    border-radius: 16px 16px 4px 16px;
    max-width: 80%;
    box-shadow: 0 10px 24px rgba(43,89,255,.25)
}

.vs-bubble a {
    color: #2563eb;
    text-decoration: none;
    border-bottom: 1px dashed rgba(37,99,235,.35)
}

    .vs-bubble a:hover {
        color: #1d4ed8
    }

/* Meta time under message */
.vs-meta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--vs-text-muted);
    margin-top: 6px
}

    .vs-meta::before {
        content: "\23F0";
        font-size: 12px;
        opacity: .7
    }
/* ⏰ */
.vs-bot + .vs-meta {
    align-self: flex-start;
    margin-right: 6px
}

.vs-user + .vs-meta {
    align-self: flex-end;
    margin-left: 6px
}

/* Typing */
.vs-typing {
    padding: 6px 16px 10px;
    background: #fff;
    border-top: 1px solid var(--vs-border);
    flex: 0 0 auto
}

    .vs-typing .dot {
        width: 8px;
        height: 8px;
        margin: 0 2px;
        border-radius: 50%;
        display: inline-block;
        background: #c3c8d2;
        animation: blink 1.2s infinite ease-in-out
    }

        .vs-typing .dot:nth-child(2) {
            animation-delay: .2s
        }

        .vs-typing .dot:nth-child(3) {
            animation-delay: .4s
        }

@keyframes blink {
    0%,80%,100% {
        opacity: .2
    }

    40% {
        opacity: 1
    }
}

/* Quick chips */
.vs-quick {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    padding: 8px 12px;
    background: #fff;
    border-top: 1px solid var(--vs-border);
    flex: 0 0 auto
}

.chip {
    border: 1px solid var(--vs-border);
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 12px;
    background: #fff;
    cursor: pointer
}

    .chip:hover {
        border-color: var(--vs-primary);
        color: var(--vs-primary)
    }

/* Input bar */
.vs-input {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 10px 12px;
    border-top: 1px solid var(--vs-border);
    background: #fff;
    flex: 0 0 auto
}

#chatbot-user-input {
    flex: 1;
    border: 1px solid var(--vs-border);
    border-radius: 12px;
    padding: 12px 14px;
    font-size: 14px;
    background: #fff
}

    #chatbot-user-input:disabled {
        background: #f1f3fb;
        color: #9aa3b2
    }

.vs-send {
    background: var(--vs-primary);
    border: 0;
    color: #fff;
    border-radius: 12px;
    padding: 12px 16px;
    cursor: pointer;
    font-weight: 700;
    box-shadow: 0 10px 22px rgba(43,89,255,.28)
}

    .vs-send:hover {
        filter: brightness(1.06)
    }

    .vs-send:disabled {
        opacity: .5;
        cursor: not-allowed;
        box-shadow: none
    }

/* Lead (compact) */
.vs-lead {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 6px;
    background: #f7f8fe;
    border: 1px solid var(--vs-border);
    border-radius: 12px;
    padding: 12px
}

    .vs-lead input {
        border: 1px solid var(--vs-border);
        border-radius: 10px;
        padding: 10px 12px;
        font-size: 14px;
        background: #fff
    }

        .vs-lead input:focus {
            border-color: var(--vs-primary-2);
            box-shadow: 0 0 0 3px rgba(43,89,255,.12);
            outline: none
        }

.vs-lead-btn {
    align-self: flex-start;
    background: var(--vs-primary);
    color: #fff;
    border: 0;
    border-radius: 10px;
    padding: 10px 14px;
    font-weight: 700;
    cursor: pointer
}

.vs-lead-err {
    color: var(--vs-danger);
    font-size: 12px;
    margin-top: 2px
}

/* Scrollbar */
.vs-messages::-webkit-scrollbar {
    width: 10px
}

.vs-messages::-webkit-scrollbar-thumb {
    background: #cdd3df;
    border-radius: 999px
}

.vs-messages::-webkit-scrollbar-track {
    background: transparent
}
/* --- Lead form: نسخهٔ فشرده مثل نمونه --- */

/* عنوان فرم */
.vs-lead-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    margin: 0 0 8px 0; /* فاصله‌ی بالایی کم شد */
    font-size: 14px;
    color: var(--vs-text);
}

/* ظرف فرم داخل حباب ربات */
.vs-lead {
    background: #f7f8fe;
    border: 1px solid var(--vs-border);
    border-radius: 12px;
    padding: 12px; /* کمتر از قبل تا فرم جمع‌وجور شود */
    display: flex;
    flex-direction: column;
    gap: 8px;
}

    /* فیلدها */
    .vs-lead input {
        height: 44px; /* قد یکنواخت */
        border: 1px solid var(--vs-border);
        border-radius: 12px;
        padding: 0 12px;
        font-size: 14px;
        line-height: 1;
        background: #fff;
    }

        .vs-lead input::placeholder {
            color: #9aa3b2
        }

        .vs-lead input:focus {
            border-color: var(--vs-primary-2);
            box-shadow: 0 0 0 3px rgba(43,89,255,.12);
            outline: none;
        }

/* دکمه: تمام‌عرض و اندازه متعادل مثل تصویر نمونه */
.vs-lead-btn {
    width: 100%;
    height: 44px;
    background: var(--vs-primary);
    color: #fff;
    border: 0;
    border-radius: 12px;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 8px 18px rgba(43,89,255,.20);
}

    .vs-lead-btn:hover {
        filter: brightness(1.05)
    }

/* پیام خطا */
.vs-lead-err {
    color: var(--vs-danger);
    font-size: 12px;
    margin-top: 2px
}

/* فاصله‌ی حبابِ فرم تا حاشیه‌ها کمی کمتر شود */
.vs-bot .vs-bubble .vs-lead {
    margin-top: 4px
}