/* ===== متغیرهای رنگی ===== */
.aichat-container {
    --primary: #4f46e5;
    --primary-light: #6366f1;
    --bg: #ffffff;
    --bg-chat: #f1f5f9;
    --surface: #ffffff;
    --text: #0f172a;
    --text-secondary: #475569;
    --border: #e2e8f0;
    --user-bubble-bg: #4f46e5;
    --user-bubble-text: #ffffff;
    --radius: 20px;
    font-family: inherit;
    box-sizing: border-box;
}

/* تم دارک (پیش‌فرض) */
.aichat-container.dark-mode {
    --primary: #818cf8;
    --primary-light: #a5b4fc;
    --bg: #0f172a;
    --bg-chat: #1e293b;
    --surface: #1e293b;
    --text: #f1f5f9;
    --text-secondary: #94a3b8;
    --border: #334155;
    --user-bubble-bg: #4f46e5;
    --user-bubble-text: #ffffff;
}

/* ===== ساختار اصلی ===== */
.aichat-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: 20px 0;
    box-sizing: border-box;
}

.aichat-container {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
    display: flex;
    flex-direction: column;
    height: 650px;
    max-height: 85vh;
    border: 1px solid var(--border);
    overflow: hidden;
    color: var(--text);
}

/* ===== هدر ===== */
.aichat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 16px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    min-height: 0 !important;
    line-height: 1 !important;
}

.aichat-header-title {
    font-weight: 700;
    font-size: 12px;
    color: var(--text);
    line-height: 1 !important;
    white-space: nowrap;
    margin: 0 12px;
    flex: 1;
    text-align: center;
}

/* دکمه تغییر تم (در سمت چپ) */
.aichat-theme-toggle {
    background: var(--bg-chat);
    border: none;
    padding: 3px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background 0.2s;
    margin: 0 !important;
}
.aichat-theme-toggle:hover { background: var(--border); }

.aichat-theme-icon-dark { display: none; }
.aichat-container.dark-mode .aichat-theme-icon-light { display: none; }
.aichat-container.dark-mode .aichat-theme-icon-dark { display: inline; }

/* ===== حالت‌های پاسخ ===== */
.aichat-mode-switch {
    display: flex;
    align-items: center;
    gap: 6px;
}

.aichat-mode-label {
    font-size: 11px;
    color: var(--text-secondary);
}

.aichat-mode-btn {
    background: var(--bg-chat);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.aichat-mode-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.aichat-mode-btn:not(.active):hover {
    background: var(--border);
}

/* ===== پیام‌ها ===== */
.aichat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    background: var(--bg-chat);
    scroll-behavior: smooth;
    overflow-x: hidden;
}

.aichat-message { display: flex; max-width: 80%; }
.aichat-user { align-self: flex-end; }
.aichat-bot { align-self: flex-start; }

.aichat-bubble {
    padding: 12px 16px;
    border-radius: 18px;
    line-height: 1.55;
    font-size: 14px;
    position: relative;
    word-wrap: break-word;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    border: 1px solid var(--border);
    overflow-wrap: break-word;          /* جلوگیری از سرریز */
    word-break: break-word;             /* شکستن کلمات طولانی */
    hyphens: auto;
}

.aichat-user .aichat-bubble {
    background: var(--user-bubble-bg);
    color: var(--user-bubble-text);
    border-bottom-right-radius: 6px;
}

.aichat-bot .aichat-bubble {
    background: var(--surface);
    border-bottom-left-radius: 6px;
}

.aichat-time {
    display: block;
    font-size: 10px;
    opacity: 0.7;
    margin-top: 6px;
    text-align: right;
    color: inherit;
}

.aichat-inline-icon {
    vertical-align: middle;
    margin-right: 6px;
}

/* دکمه کپی */
.aichat-copy-btn {
    position: absolute;
    bottom: 6px;
    left: 6px;
    background: rgba(0,0,0,0.1);
    border: none;
    border-radius: 10px;
    padding: 4px 8px;
    font-size: 11px;
    color: inherit;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
}
.aichat-bubble:hover .aichat-copy-btn { opacity: 1; }

/* ===== نتایج جستجو (لینکی) ===== */
.aichat-results { margin:0; padding:0; list-style:none; }
.aichat-result-item { padding: 12px 0; border-bottom:1px solid var(--border); }
.aichat-result-item:last-child { border-bottom:none; }

.aichat-result-link {
    color: var(--primary) !important;
    font-weight: 600;
    text-decoration: none !important;
    display: block;
    margin-bottom: 6px;
}
.aichat-result-link:hover { text-decoration: underline !important; }

.aichat-result-summary {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 6px 0 8px;
    line-height: 1.5;
}

.aichat-result-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-secondary);
}

/* آیکن تقویم (SVG محلی) */
.aichat-result-date {
    display: flex;
    align-items: center;
}
.aichat-result-date::before {
    content: "";
    display: inline-block;
    width: 13px;
    height: 13px;
    margin-right: 3px;
    background-color: currentColor;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='3' y='4' width='18' height='18' rx='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E") center/contain no-repeat;
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='3' y='4' width='18' height='18' rx='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E") center/contain no-repeat;
    opacity: 0.6;
}

/* دکمه‌های امتیاز */
.aichat-rating { display:flex; gap:10px; }
.aichat-like, .aichat-dislike {
    background: none !important;
    border: 1px solid var(--border) !important;
    border-radius: 16px;
    padding: 2px 7px !important;
    font-size: 15px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: 0.2s;
}
.aichat-like.active { color:#10b981 !important; border-color:#10b981 !important; }
.aichat-dislike.active { color:#ef4444 !important; border-color:#ef4444 !important; }

/* ===== ناحیه ورودی ===== */
.aichat-input-area {
    display: flex;
    align-items: flex-end;
    padding: 12px 18px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    gap: 10px;
}

.aichat-input {
    flex: 1;
    padding: 10px 16px;
    border: 1.5px solid var(--border);
    border-radius: 24px;
    font-size: 14px;
    background: var(--bg-chat);
    color: var(--text);
    resize: none;
    line-height: 1.4;
    max-height: 140px;
    outline: none;
    transition: border 0.2s, box-shadow 0.2s;
    font-family: inherit;
}
.aichat-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.2);
}
/* تصحیح رنگ در تم دارک */
.aichat-container.dark-mode .aichat-input {
    background: #0f172a;
    color: #f1f5f9;
}

/* دکمه ارسال */
.aichat-send-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: #ffffff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(79,70,229,0.4);
    transition: transform 0.2s, box-shadow 0.2s;
    flex-shrink: 0;
    box-sizing: border-box;
    padding: 0 !important;
    margin: 0 !important;
}
.aichat-send-btn:hover { transform: scale(1.05); }
.aichat-send-btn:active { transform: scale(0.95); }

/* ===== فوتر ===== */
.aichat-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2px 16px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    font-size: 10px;
    gap: 8px;
    min-height: 0 !important;
    line-height: 1 !important;
}
.aichat-powered {
    color: var(--text-secondary);
    margin: 0 !important;
    padding: 0 !important;
    line-height: 1 !important;
    vertical-align: middle;
}
.aichat-visit-btn {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: #fff !important;
    padding: 1px 10px;
    border-radius: 20px;
    text-decoration: none !important;
    font-weight: 600;
    font-size: 10px;
    line-height: 1.4;
    text-align: center;
    display: inline-block;
    transition: opacity 0.2s;
    box-shadow: 0 2px 6px rgba(79,70,229,0.3);
    margin: 0 !important;
    vertical-align: middle;
}
.aichat-visit-btn:hover { opacity: 0.9; }

/* ===== پاسخ ترکیبی (کلاژ) ===== */
.aichat-collage {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 10px;
    margin: 0;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    word-break: break-word;
    hyphens: auto;
    max-width: 100%;
    white-space: normal !important;
    overflow: hidden;
}

.aichat-collage-paragraph {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    word-break: break-word;
    hyphens: auto;
}

.aichat-collage-source {
    color: var(--primary);
    font-size: 12px;
    text-decoration: none;
    white-space: nowrap;
}
.aichat-collage-source:hover { text-decoration: underline; }

/* امتیازدهی در کلاژ */
.aichat-collage-rating {
    margin-top: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-top: 1px solid var(--border);
    padding-top: 8px;
}

.aichat-collage-rating .aichat-like,
.aichat-collage-rating .aichat-dislike {
    margin: 0;
}

/* ===== نشانگر تایپ ===== */
.aichat-typing {
    display: flex;
    gap: 4px;
    padding: 8px 0;
}
.aichat-typing span {
    width: 6px;
    height: 6px;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: aichat-bounce 1.4s infinite ease-in-out both;
}
.aichat-typing span:nth-child(1) { animation-delay: -0.32s; }
.aichat-typing span:nth-child(2) { animation-delay: -0.16s; }

@keyframes aichat-bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* ===== موبایل (تمام‌صفحه) ===== */
body.aichat-fullscreen-active { overflow: hidden; position: fixed; width: 100%; }

@media (max-width: 768px) {
    .aichat-wrapper {
        padding: 0 !important;
        margin: 0 !important;
        align-items: stretch;
        height: 100dvh;
        position: fixed;
        inset: 0;
        z-index: 9999;
        background: var(--bg);
    }
    .aichat-container {
        max-width: 100% !important;
        width: 100% !important;
        height: 100% !important;
        max-height: 100% !important;
        border-radius: 0 !important;
        box-shadow: none !important;
    }
    .aichat-input {
        max-height: 120px;
    }
    .aichat-footer { flex-direction: row; }
    .aichat-header {
        padding: 4px 10px;
    }
    .aichat-mode-label {
        display: none; /* مخفی کردن برچسب در موبایل */
    }
    .aichat-mode-btn {
        font-size: 11px;
        padding: 3px 8px;
    }
}

/* ===== نوار اسکرول ===== */
.aichat-messages::-webkit-scrollbar { width: 6px; }
.aichat-messages::-webkit-scrollbar-track { background: transparent; }
.aichat-messages::-webkit-scrollbar-thumb { background: #94a3b8; border-radius: 3px; }
.aichat-container.dark-mode .aichat-messages::-webkit-scrollbar-thumb { background: #475569; }
.aichat-messages { scrollbar-width: thin; scrollbar-color: #94a3b8 transparent; }
.aichat-container.dark-mode .aichat-messages { scrollbar-color: #475569 transparent; }

.aichat-input::-webkit-scrollbar { width: 6px; }
.aichat-input::-webkit-scrollbar-track { background: transparent; }
.aichat-input::-webkit-scrollbar-thumb { background: #94a3b8; border-radius: 3px; }
.aichat-container.dark-mode .aichat-input::-webkit-scrollbar-thumb { background: #475569; }
.aichat-input { scrollbar-width: thin; scrollbar-color: #94a3b8 transparent; }
.aichat-container.dark-mode .aichat-input { scrollbar-color: #475569 transparent; }
.aichat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 16px;
}
.aichat-header-title {
    flex: 0 0 auto;
    white-space: nowrap;
}
.aichat-mode-switch {
    flex: 1;
    display: flex;
    justify-content: center;
    gap: 6px;
}
.aichat-theme-toggle {
    flex: 0 0 auto;
}
.aichat-continue-prompt {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.aichat-continue-prompt span {
    color: var(--text-secondary);
}
.aichat-continue-yes, .aichat-continue-no {
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 12px;
    padding: 2px 10px;
    font-size: 12px;
    cursor: pointer;
    transition: opacity 0.2s;
}
.aichat-continue-no {
    background: var(--text-secondary);
}