/* ==========================================================================
   1. CSS VARIABLES (MÀU SẮC MẶC ĐỊNH)
   ========================================================================== */
:root {
    /* Light Mode */
    --nvtrag-bg-card: #ffffff;
    --nvtrag-bg-body: #ffffff;
    --nvtrag-bg-input: #f9fafb;
    --nvtrag-border: #e5e7eb;
    
    --nvtrag-text-primary: #1f2937;
    --nvtrag-text-secondary: #6b7280;
    
    --nvtrag-bubble-bot-bg: #f3f4f6;
    --nvtrag-bubble-bot-text: #1f2937;
    
    /* Màu user được override bởi PHP */
    --nvtrag-bubble-user-bg: #2563eb; 
    --nvtrag-bubble-user-text: #ffffff;

    --nvtrag-shadow: 0 10px 40px rgba(0,0,0,0.15);
    
    /* Safe area & Viewport */
    --nvtrag-safe-bottom: env(safe-area-inset-bottom, 0px);
    --nvtrag-viewport-h: 100vh;
}

/* ==========================================================================
   2. WIDGET CONTAINER & CARD
   ========================================================================== */
.nvtrag-widget {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    font-size: 15px; 
    line-height: 1.5; 
}

.nvtrag-floating {
    /* Các thuộc tính cũ giữ nguyên */
    position: fixed;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    justify-content: flex-end; /* Quan trọng: dồn nội dung xuống đáy */
}

/* Align children (icon + contact bar) theo phía trái/phải của widget */
.nvtrag-floating.nvtrag-align-right { align-items: flex-end; }
.nvtrag-floating.nvtrag-align-left  { align-items: flex-start; }

/*
  Khi widget ĐÓNG, .nvtrag-card đang bị ẩn (opacity/max-height) nhưng vẫn có thể “phình” width
  theo nội dung bên trong -> icon có thể bị kẹt ở mép phải và chỉ kéo được dọc.
  Đặt card ở position:absolute để nó không ảnh hưởng tới kích thước container khi đóng.
*/
.nvtrag-floating:not(.nvtrag-widget--open) { width: fit-content; max-width: none; }
.nvtrag-floating:not(.nvtrag-widget--open) .nvtrag-card { position: absolute; bottom: 0; }
.nvtrag-floating.nvtrag-align-right:not(.nvtrag-widget--open) .nvtrag-card { right: 0; left: auto; }
.nvtrag-floating.nvtrag-align-left:not(.nvtrag-widget--open)  .nvtrag-card { left: 0; right: auto; }


.nvtrag-floating.nvtrag-user-pos {
    /* Không được dùng !important để override bottom/right/left ở đây */
    transition: none; /* Tắt transition khi mở để tránh bị giật vị trí */
}

/* When OPEN, restore the card width */
.nvtrag-widget.nvtrag-floating.nvtrag-widget--open {
    width: 360px;
    max-width: calc(100vw - 32px);
}

/* 2. Khi đang kéo: Tắt transition để chuột đi đâu widget theo đó ngay lập tức */
.nvtrag-widget--dragging {
    transition: none !important; 
    cursor: grabbing !important;
    opacity: 0.9;
}

/* 3. Khi thả chuột ra: Bật lại transition cho mượt */
.nvtrag-floating:not(.nvtrag-widget--dragging) {
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Main Card */
.nvtrag-widget .nvtrag-card {
    background: #fff;
    border: 0; /* Ẩn viền khi đóng */
    border-radius: 16px; 
    box-shadow: 0 10px 40px rgba(0,0,0,.15);
    overflow: hidden;
    width: 100%;
    display: flex;
    flex-direction: column;
    
    /* Animation trạng thái ĐÓNG */
    visibility: hidden;
    opacity: 0;
    max-height: 0; 
    margin-bottom: 0;
    
    transform: translateY(20px) scale(0.95);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    pointer-events: none;
    z-index: 9999;
    min-height: 0; /* Fix flexbox scrolling */
}

/* Trạng thái MỞ */
.nvtrag-widget.nvtrag-widget--open .nvtrag-card {
    position: relative; /* override position:absolute khi đóng */

    visibility: visible;
    opacity: 1;
    max-height: calc(100vh - 120px);
    margin-bottom: 16px;
    border: 1px solid #e5e7eb;
    
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* ==========================================================================
   3. HEADER AREA
   ========================================================================== */
.nvtrag-head {
    background-color: var(--nvtrag-widget-header-color);
    color: #fff;
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    height: 50px;
    cursor: move; /* Thay cursor pointer thành move */
    touch-action: none; /* Quan trọng để kéo mượt trên mobile */
    user-select: none;
    box-sizing: border-box;
}

.nvtrag-close-btn, #nvtrag-mode-btn {
    cursor: pointer;
}

.nvtrag-head-content {
    flex: 1 1 auto;
    min-width: 0;
    margin-right: 4px;
}

.nvtrag-head-content strong {
    font-weight: 600; 
    font-size: 15px;  
    white-space: nowrap; 
    overflow: hidden;
    text-overflow: ellipsis; 
    display: block; 
    max-width: 100%; 
    color: #fff;
}

/* Header Status Badge (Online/Offline/Connecting) */
#nvtrag-head-status {
    flex-shrink: 0;
}
#nvtrag-head-status .nvtrag-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.15);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    color: #fff;
    line-height: 1;
    border: 1px solid rgba(255,255,255,0.1);
}
#nvtrag-head-status .nvtrag-badge__dot {
    display: block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #22c55e;
    box-shadow: 0 0 0 2px rgba(255,255,255,0.2);
}
/* Pulse Animation for Live Status */
.nvtrag-badge--live .nvtrag-badge__dot {
    background-color: #22c55e; 
    animation: nvtrag-pulse-green 2s infinite;
}
@keyframes nvtrag-pulse-green {
    0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
    70% { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
    100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

/* Header Buttons */
.nvtrag-close-btn {
    background: transparent; color: #fff; opacity: 0.7; border: 0;
    font-size: 20px; line-height: 1; cursor: pointer;
    flex-shrink: 0; width: 24px; height: 24px;
    display: flex; align-items: center; justify-content: center;
    margin-left: 4px !important;
}
.nvtrag-close-btn:hover { opacity: 1; }

#nvtrag-mode-btn {
    position: static !important;
    margin: 0 !important;
    white-space: nowrap;
    flex-shrink: 0;
    font-size: 11px;
    padding: 4px 8px !important;
    height: 26px;
    display: flex; align-items: center;
}
#nvtrag-mode-btn:hover { opacity: 0.8; background: rgba(255,255,255,0.1) !important; }

#nvtrag-mode-btn:disabled,
#nvtrag-mode-btn.nvtrag-disabled {
    opacity: 0.55 !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
}


/* ==========================================================================
   4. CHAT BODY & BUBBLES
   ========================================================================== */
.nvtrag-body {
    padding: 16px;
    background-color: var(--nvtrag-bg-body); 
    flex-grow: 1;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--nvtrag-border) transparent;
    min-height: 0;
}

.nvtrag-row {
    margin-bottom: 16px; 
    display: flex;
    flex-direction: column;
    position: relative;
}

.nvtrag-row .nvtrag-bubble {
    padding: 10px 14px; 
    border-radius: 18px;
    max-width: 85%;
    word-wrap: break-word;
    position: relative;
    font-size: 14px;
}

/* Bot Style */
.nvtrag-row:not(.me) {
    padding-left: 38px;
    align-items: flex-start;
}
.nvtrag-row .nvtrag-bubble:not(.me) {
    background: var(--nvtrag-bubble-bot-bg);
    color: var(--nvtrag-bubble-bot-text);
    border-radius: 18px 18px 18px 4px;
}
/* Bot Avatar */
.nvtrag-row:not(.me)::before {
    content: "";
    position: absolute; left: 0; bottom: 2px;
    width: 30px; height: 30px; border-radius: 50%;
    background-image: var(--nvtrag-bot-avatar);
    background-size: cover; background-position: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1); 
    background-color: #fff;
}

/* User Style */
.nvtrag-row.me {
    padding-right: 38px;
    padding-left: 0;
    align-items: flex-end;
}
.nvtrag-row .nvtrag-bubble.me {
    background: linear-gradient(135deg, var(--nvtrag-widget-header-color, #d63638), var(--nvtrag-widget-header-color-dark, #a12d2f));
    color: var(--nvtrag-bubble-user-text);
    border-radius: 18px 18px 4px 18px;
}

/* Pending bubble (while streaming) */
.nvtrag-bubble--pending{
    opacity: .92;
}
/* User Avatar */
.nvtrag-row.me::after {
    content: "";
    position: absolute; right: 0; bottom: 2px;
    width: 30px; height: 30px; border-radius: 50%;
    background-image: var(--nvtrag-user-avatar); 
    background-size: cover; background-position: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1); 
    background-color: #fff;
}

/* Typing Indicator */
.nvtrag-typing {
    display: inline-flex; align-items: center;
    background: var(--nvtrag-bubble-bot-bg) !important;
    padding: 12px 16px; border-radius: 18px; border-bottom-left-radius: 4px;
    margin: 8px 0; width: fit-content;
}
.nvtrag-typing .dot {
    width: 8px; height: 8px; margin: 0 3px;
    background-color: var(--nvtrag-text-secondary) !important;
    border-radius: 50%;
    animation: nvtrag-bounce 1.4s infinite ease-in-out both;
}
.nvtrag-typing .dot:nth-child(1) { animation-delay: -0.32s; }
.nvtrag-typing .dot:nth-child(2) { animation-delay: -0.16s; }
@keyframes nvtrag-bounce {
    0%, 80%, 100% { transform: scale(0); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

/* ==========================================================================
   5. FOOTER & INPUTS
   ========================================================================== */
.nvtrag-foot {
    background: var(--nvtrag-bg-card);
    border-top: 1px solid var(--nvtrag-border);
    padding: 12px;
    display: flex;
    gap: 8px;
}

.nvtrag-foot input[type="text"] {
    background: var(--nvtrag-bg-input);
    color: var(--nvtrag-text-primary);
    border: 1px solid var(--nvtrag-border);
    border-radius: 20px;
    padding: 10px 14px;
    flex: 1;
    font-size: 14px;
    outline: none;
}
.nvtrag-foot input[type="text"]:focus { border-color: #999; }
.nvtrag-foot input[type="text"]::placeholder { color: var(--nvtrag-text-secondary); }

.nvtrag-foot button {
    padding: 10px 18px; 
    border-radius: 20px;
    background: linear-gradient(135deg, var(--nvtrag-widget-header-color, #d63638), var(--nvtrag-widget-header-color-dark, #a12d2f));
    color: #fff; border: 0; cursor: pointer;
    font-weight: 600; flex-shrink: 0; font-size: 14px;
    transition: all 0.2s ease;
}
.nvtrag-foot button:hover { opacity: 0.9; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2); }
.nvtrag-foot button:disabled { background: #9ca3af; cursor: not-allowed; box-shadow: none; }

/* Profile Form */
.nvtrag-profile {
    padding: 16px; background: var(--nvtrag-bg-input); border-bottom: 1px solid var(--nvtrag-border); color: var(--nvtrag-text-primary);
}
.nvtrag-profile div { display: flex; gap: 10px; flex-direction: column; }
.nvtrag-profile input {
    background: var(--nvtrag-bg-card); color: var(--nvtrag-text-primary); border: 1px solid var(--nvtrag-border);
    padding: 10px; border-radius: 8px; width: 100%; box-sizing: border-box;
}
.nvtrag-profile button {
    padding: 10px; border-radius: 8px; background: #111827; color: #fff; border: 0; cursor: pointer; width: 100%;
}

/* ==========================================================================
   6. TOGGLE BUTTON & BADGES
   ========================================================================== */
.nvtrag-toggle-btn {
    border: none; cursor: pointer; padding: 0; background: transparent; 
    transition: all 0.2s ease; flex-shrink: 0;
    touch-action: none;
    -webkit-tap-highlight-color: transparent;
}
.nvtrag-toggle-btn:hover { transform: scale(1.1); }

/* =========================
   Floating UX: mini dot + dragging
   ========================= */
.nvtrag-widget--dragging .nvtrag-toggle-btn { transform: none !important; }

/* Mini mode: shrink button to a dot (still clickable) */
.nvtrag-widget--mini .nvtrag-widget-badge,
.nvtrag-widget--mini .nvtrag-contact-bar-vertical { display: none !important; }

.nvtrag-widget--mini .nvtrag-toggle-btn {
    width: 10px !important;
    height: 10px !important;
    border-radius: 999px !important;
    padding: 0 !important;
    background: var(--nvtrag-widget-color-main, #2563eb) !important;
    box-shadow: 0 4px 14px rgba(0,0,0,0.25) !important;
    animation: none !important;
    position: relative;
}

/* Keep a larger tap area on mobile while visually being a dot */
.nvtrag-widget--mini .nvtrag-toggle-btn::after {
    content: "";
    position: absolute;
    inset: -14px;
}

.nvtrag-widget--mini .nvtrag-toggle-btn svg { display: none !important; }
.nvtrag-widget--mini .nvtrag-toggle-btn--custom { background-image: none !important; }

/* Default Circle Button */
.nvtrag-toggle-btn--default {
    width: 60px; height: 60px; border-radius: 50% !important;
    background: linear-gradient(135deg, var(--nvtrag-widget-color-main, #2563eb), var(--nvtrag-widget-color-dark, #1d4ed8));
    color: #fff;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    display: flex; align-items: center; justify-content: center;
    animation: nvtrag-toggle-btn-pulse 2.5s infinite ease-in-out;
    z-index: 10000;
}
.nvtrag-toggle-btn--default svg { fill: #ffffff; width: 30px; height: 30px; transition: transform 0.3s ease; }
.nvtrag-toggle-btn--default:hover svg { transform: rotate(-10deg); }
@keyframes nvtrag-toggle-btn-pulse {
  0% { transform: scale(1); box-shadow: 0 5px 20px rgba(0,0,0,0.2); }
  50% { transform: scale(1.08); box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
  100% { transform: scale(1); box-shadow: 0 5px 20px rgba(0,0,0,0.2); }
}

/* Custom Image Button */
.nvtrag-toggle-btn--custom {
    width: auto; height: auto; border-radius: 0; 
    background-size: contain; background-repeat: no-repeat; background-position: center;
    animation: nvtrag-pulse-float 3s infinite ease-in-out;
    box-shadow: none; 
}
@keyframes nvtrag-pulse-float {
  0% { transform: scale(1); filter: drop-shadow(0 5px 5px rgba(0,0,0,0.2)); }
  50% { transform: scale(1.1); filter: drop-shadow(0 10px 10px rgba(0,0,0,0.3)); }
  100% { transform: scale(1); filter: drop-shadow(0 5px 5px rgba(0,0,0,0.2)); }
}

/* Floating Badge */
.nvtrag-widget-badge {
    background-color: var(--nvtrag-widget-header-color) !important;
    color: #fff; padding: 6px 14px; border-radius: 20px;
    font-size: 13px; font-weight: 600; 
    
    /* --- BẮT ĐẦU SỬA: Chuyển từ Absolute sang Relative --- */
    position: relative !important; /* Để nó trôi theo icon */
    bottom: auto !important; 
    right: auto !important; 
    left: auto !important;
    
    margin-bottom: 12px; /* Tạo khoảng cách với icon bên dưới */
    order: -1; /* Đảm bảo nó luôn nằm TRÊN icon dù code HTML nằm ở đâu */
    /* --- KẾT THÚC SỬA --- */

    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    opacity: 0; transform: translateY(10px);
    animation: nvtrag-badge-slide-in 0.5s ease-out 1s forwards;
    pointer-events: none; white-space: nowrap; z-index: 9999;
}
@keyframes nvtrag-badge-slide-in { to { opacity: 1; transform: translateY(0); } }

/* Alignment */
.nvtrag-align-left .nvtrag-widget-badge { left: 0; right: auto; }
.nvtrag-align-right .nvtrag-widget-badge { right: 0; left: auto; }

/* Hide when Open */
.nvtrag-widget--open .nvtrag-widget-badge,
.nvtrag-widget--open .nvtrag-toggle-btn { display: none; }

/* ==========================================================================
   7. CONTACT CHANNELS
   ========================================================================== */
/* Tìm và thay thế đoạn css .nvtrag-contact-bar-vertical cũ */
.nvtrag-contact-bar-vertical {
    display: flex; flex-direction: column; 
    gap: 12px;
    
    /* --- BẮT ĐẦU SỬA --- */
    position: relative !important;
    bottom: auto !important; 
    right: auto !important;
    margin-bottom: 12px;
    order: -2; /* Nằm trên cả Badge (nếu có) và Icon */
    
    align-items: inherit !important; /* Ăn theo căn chỉnh của cha (Trái/Phải) */
    /* --- KẾT THÚC SỬA --- */
    
    z-index: 9998;
    width: auto; transition: all 0.3s ease;
}
.nvtrag-align-left .nvtrag-contact-bar-vertical { right: auto; left: 0; align-items: flex-start; }
.nvtrag-widget--open .nvtrag-contact-bar-vertical { display: none; }

.nvtrag-contact-icon {
    display: block; width: 42px; height: 42px; border-radius: 50%; overflow: hidden;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2); transition: transform 0.2s;
}
.nvtrag-contact-icon:hover { transform: scale(1.1); }
.nvtrag-contact-icon img { width: 100%; height: 100%; object-fit: cover; }

/* Horizontal (Inside widget) */
.nvtrag-contact-bar-horizontal {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;

    /* IMPORTANT: do not let this row get "squeezed" by flexbox when card height is constrained */
    flex-shrink: 0;

    /* ensure icons are never visually clipped */
    min-height: 52px;
    overflow-x: auto;
    overflow-y: visible;
    scrollbar-width: none;
    box-sizing: border-box;
}
.nvtrag-contact-bar-horizontal .nvtrag-contact-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    margin: 0;
}
.nvtrag-contact-bar-horizontal::-webkit-scrollbar { display: none; }

/* Subtle "float" animation for contact icons when widget is CLOSED (not open & not mini) */
@keyframes nvtrag-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}
.nvtrag-floating:not(.nvtrag-widget--open):not(.nvtrag-widget--mini) .nvtrag-contact-bar-vertical .nvtrag-contact-icon {
    animation: nvtrag-float 3.2s ease-in-out infinite;
}
.nvtrag-floating:not(.nvtrag-widget--open):not(.nvtrag-widget--mini) .nvtrag-contact-bar-vertical .nvtrag-contact-icon:nth-child(2) { animation-delay: .25s; }
.nvtrag-floating:not(.nvtrag-widget--open):not(.nvtrag-widget--mini) .nvtrag-contact-bar-vertical .nvtrag-contact-icon:nth-child(3) { animation-delay: .5s; }
.nvtrag-floating:not(.nvtrag-widget--open):not(.nvtrag-widget--mini) .nvtrag-contact-bar-vertical .nvtrag-contact-icon:nth-child(4) { animation-delay: .75s; }
.nvtrag-floating:not(.nvtrag-widget--open):not(.nvtrag-widget--mini) .nvtrag-contact-bar-vertical .nvtrag-contact-icon:nth-child(5) { animation-delay: 1s; }

/* ==========================================================================
   8. MARKDOWN CONTENT STYLING
   ========================================================================== */
.nvtrag-bubble strong { font-weight: 700; }
.nvtrag-bubble em { font-style: italic; }
.nvtrag-bubble a { text-decoration: underline; color: inherit; }
.nvtrag-bubble ul, .nvtrag-bubble ol { margin: 8px 0 8px 20px; padding: 0; }
.nvtrag-bubble li { margin-bottom: 4px; list-style: disc; }
.nvtrag-bubble code { background: rgba(0,0,0,0.1); padding: 2px 4px; border-radius: 4px; font-family: monospace; font-size: 0.9em; }
.nvtrag-bubble pre { background: #2d2d2d; color: #ccc; padding: 10px; border-radius: 6px; overflow-x: auto; margin: 8px 0; }
.nvtrag-bubble pre code { background: transparent; color: inherit; padding: 0; }

.nvtrag-table-responsive { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 10px 0; border: 1px solid var(--nvtrag-border); border-radius: 8px; background: #fff; }
.nvtrag-bubble table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 300px; }
.nvtrag-bubble th, .nvtrag-bubble td { padding: 8px 12px; border-bottom: 1px solid #eee; text-align: left; color: #333; }
.nvtrag-bubble th { background-color: #f8f9fa; font-weight: 600; border-bottom: 2px solid #e5e7eb; }
.nvtrag-bubble tr:last-child td { border-bottom: none; }

/* ==========================================================================
   9. DARK MODE THEME (SỬA LỖI CÚ PHÁP)
   ========================================================================== */

/* 1. Kích hoạt thủ công (qua data attribute) */
.nvtrag-widget[data-theme="dark"] {
    --nvtrag-bg-card: #1f2937;
    --nvtrag-bg-body: #111827;
    --nvtrag-bg-input: #374151;
    --nvtrag-border: #374151;
    --nvtrag-text-primary: #f9fafb;
    --nvtrag-text-secondary: #9ca3af;
    --nvtrag-bubble-bot-bg: #374151;
    --nvtrag-bubble-bot-text: #f3f4f6;
    --nvtrag-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

/* Style riêng cho Table ở Dark Mode thủ công */
.nvtrag-widget[data-theme="dark"] .nvtrag-table-responsive { border-color: #374151; background: #1f2937; }
.nvtrag-widget[data-theme="dark"] .nvtrag-bubble th { background-color: #111827; border-color: #374151; color: #fff; }
.nvtrag-widget[data-theme="dark"] .nvtrag-bubble td { border-color: #374151; color: #e5e7eb; }


/* 2. Kích hoạt tự động (theo hệ thống) */
@media (prefers-color-scheme: dark) {
    .nvtrag-widget:not([data-theme="light"]) {
        --nvtrag-bg-card: #1f2937;
        --nvtrag-bg-body: #111827;
        --nvtrag-bg-input: #374151;
        --nvtrag-border: #374151;
        --nvtrag-text-primary: #f9fafb;
        --nvtrag-text-secondary: #9ca3af;
        --nvtrag-bubble-bot-bg: #374151;
        --nvtrag-bubble-bot-text: #f3f4f6;
        --nvtrag-shadow: 0 10px 40px rgba(0,0,0,0.5);
    }
    
    /* Style riêng cho Table ở Dark Mode tự động */
    .nvtrag-widget:not([data-theme="light"]) .nvtrag-table-responsive { border-color: #374151; background: #1f2937; }
    .nvtrag-widget:not([data-theme="light"]) .nvtrag-bubble th { background-color: #111827; border-color: #374151; color: #fff; }
    .nvtrag-widget:not([data-theme="light"]) .nvtrag-bubble td { border-color: #374151; color: #e5e7eb; }
}

/* ==========================================================================
   10. MOBILE & RESPONSIVE
   ========================================================================== */
@media (max-width: 600px) {
    /* Only force default position when user has NOT dragged */
    .nvtrag-floating:not(.nvtrag-user-pos) {
        width: auto !important; max-width: none !important;
        bottom: max(var(--nvtrag-bottom-mobile, 10px), env(safe-area-inset-bottom, 10px)) !important;
        left: auto !important; right: auto !important;
    }
    .nvtrag-floating.nvtrag-align-right:not(.nvtrag-user-pos) {
        right: var(--nvtrag-side-mobile, 10px) !important;
        left: auto !important; align-items: flex-end !important;
    }
    .nvtrag-floating.nvtrag-align-left:not(.nvtrag-user-pos) {
        left: var(--nvtrag-side-mobile, 10px) !important;
        right: auto !important; align-items: flex-start !important;
    }


    
    /* Hide floating elements on mobile to save space */
    /* .nvtrag-widget-badge { display: none !important; } */
    .nvtrag-contact-bar-vertical { bottom: 75px !important; gap: 10px; }
    .nvtrag-contact-icon { width: 38px; height: 38px; }

    /* --- Fullscreen Experience when Open --- */
    .nvtrag-widget--open .nvtrag-card {
        position: fixed !important;
        top: 0 !important; left: 0 !important; right: 0 !important; bottom: 0 !important;
        width: 100% !important; height: 100% !important; max-height: 100% !important;
        border-radius: 0 !important; margin: 0 !important;
        z-index: 9999999 !important;
        display: flex !important; flex-direction: column !important;
    }
    .nvtrag-widget--open .nvtrag-head {
        border-radius: 0;
        padding-top: max(12px, env(safe-area-inset-top)); /* Tránh tai thỏ */
    }
    .nvtrag-widget--open .nvtrag-foot {
        padding-bottom: max(12px, env(safe-area-inset-bottom)); /* Tránh home bar */
        border-radius: 0;
    }
    .nvtrag-widget--open .nvtrag-body { flex: 1; height: auto; }
    
    /* Hide triggers when fullscreen */
    .nvtrag-widget--open .nvtrag-toggle-btn,
    .nvtrag-widget--open .nvtrag-contact-bar-vertical { display: none !important; }
}

/* Extra Small Screens */
@media (max-width: 380px) {
    #nvtrag-head-status .nvtrag-badge { padding: 4px; gap: 0; font-size: 0; /* Ẩn text, giữ chấm */ }
    #nvtrag-head-status .nvtrag-badge__dot { margin: 2px; }
    #nvtrag-mode-btn { font-size: 10px; padding: 2px 6px !important; }
}

/* Nút upload */
.nvtrag-upload-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    color: #6b7280;
    padding: 8px;
    display: flex;
    align-items: center;
    transition: color 0.2s;
}
.nvtrag-upload-btn:hover {
    color: #2563eb;
}
/* Input wrapper để nút upload nằm ngang hàng với input text */
.nvtrag-foot .input-wrapper {
    display: flex;
    align-items: center;
    width: 100%;
    background: var(--nvtrag-bg-input);
    border-radius: 20px;
    padding-left: 5px;
}
/* Chỉnh lại input text một chút nếu cần */
#nvtrag-msg {
    flex: 1;
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
}

/* Ảnh trong khung chat */
.nvtrag-chat-image {
    max-width: 100%;
    border-radius: 8px;
    margin-top: 5px;
    display: block;
    cursor: pointer;
}
.nvtrag-chat-file {
    display: inline-block;
    padding: 8px 12px;
    background: rgba(0,0,0,0.05);
    border-radius: 6px;
    margin-top: 5px;
    text-decoration: none;
    color: inherit;
    font-weight: 500;
}
/* --- Input Group Layout --- */
.nvtrag-input-group {
    display: flex;
    align-items: center;
    background: var(--nvtrag-bg-input);
    border-radius: 24px;
    padding: 4px 8px;
    border: 1px solid var(--nvtrag-border);
}

.nvtrag-btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    color: var(--nvtrag-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}
.nvtrag-btn-icon:hover {
    color: var(--nvtrag-bubble-user-bg);
}

/* Input text chiếm phần còn lại */
#nvtrag-msg {
    flex: 1;
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    padding: 8px !important;
    margin: 0 !important;
}

/* Nút gửi */
#nvtrag-send {
    background: none;
    border: none;
    color: var(--nvtrag-bubble-user-bg);
    cursor: pointer;
    padding: 6px;
    display: flex;
}

/* --- LOGIC ẨN/HIỆN NÚT UPLOAD --- */
/* Mặc định hiện (cho Live chat) */
#nvtrag-btn-upload {
    display: block;
}

/* Khi Widget có class 'mode-rag' thì ẩn nút upload đi */
.nvtrag-widget.mode-rag #nvtrag-btn-upload {
    display: none !important;
}

/* Style cho ảnh/file trong chat */
.nvtrag-chat-img {
    max-width: 100%;
    border-radius: 8px;
    margin-top: 5px;
    display: block;
}
.nvtrag-chat-file {
    display: inline-block;
    padding: 8px 12px;
    background: rgba(0,0,0,0.05);
    border-radius: 6px;
    text-decoration: none;
    color: #333;
    margin-top: 4px;
    font-size: 0.9em;
}

/* Mặc định ẩn nút upload (Chế độ Bot) */
#nvtrag-btn-upload {
    display: none;
}

/* Khi widget có class mode-live thì hiện nút */
.nvtrag-widget.mode-live #nvtrag-btn-upload {
    display: block !important;
}

/* Style ảnh trong chat */
.nvtrag-chat-img {
    max-width: 100%;
    border-radius: 8px;
    margin-top: 5px;
}

@keyframes nvtrag-pulse {
  0% { opacity: 1; }
  50% { opacity: 0.4; }
  100% { opacity: 1; }
}
.nvtrag-rec-dot {
  animation: nvtrag-pulse 1s infinite;
}
/* =========================
   Mode switch button (Bot/Live) - moved from inline JS
   ========================= */
#nvtrag-mode-btn.nvtrag-mode-btn,
.nvtrag-mode-btn#nvtrag-mode-btn {
    background: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.5);
    border-radius: 12px;
    color: #fff;
    cursor: pointer;
}

/* State: LIVE (red) */
#nvtrag-mode-btn.nvtrag-mode-btn--live {
    background: #d63638;
    border-color: rgba(255,255,255,0.35);
}

/* State: BOT (default translucent) */
#nvtrag-mode-btn.nvtrag-mode-btn--bot {
    background: rgba(255,255,255,0.2);
}
/* Khi yêu cầu nhập profile: khóa các kênh liên hệ */
.nvtrag-require-profile .nvtrag-contact-bar-vertical,
.nvtrag-require-profile .nvtrag-contact-bar-horizontal {
    opacity: 0.45;
    pointer-events: none;
    filter: grayscale(1);
}

.nvtrag-require-profile .nvtrag-contact-icon:hover {
    transform: none !important;
}


/* ======================================================================
   11. MODERN SAAS / AI TECH – USER WIDGET OVERRIDES (2026-02)
   - Only overrides visuals; does not change business logic.
   ====================================================================== */

.nvtrag-widget{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  letter-spacing: .01em;
}

.nvtrag-card{
  border-radius: var(--nvtrag-radius-lg, 18px) !important;
  border: 1px solid rgba(148,163,184,.35) !important;
  box-shadow: 0 18px 55px rgba(2,6,23,.18) !important;
  background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(248,250,252,.92)) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow: hidden;
}

.nvtrag-head{
  position: sticky;
  top: 0;
  z-index: 2;
  background: linear-gradient(135deg,
    var(--nvtrag-widget-header-color, #2563eb),
    var(--nvtrag-widget-color-dark, #1d4ed8) 55%,
    #7c3aed);
  border-bottom: 1px solid rgba(255,255,255,.16);
}

.nvtrag-head-content strong{
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .02em;
}

.nvtrag-close-btn{
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.18);
  color: #fff;
  transition: transform .15s ease, background .15s ease;
}
.nvtrag-close-btn:hover{
  transform: translateY(-1px);
  background: rgba(255,255,255,.22);
}

#nvtrag-head-status{
  display:flex;
  align-items:center;
  gap:8px;
}

/* Body */
.nvtrag-body{
  background:
    radial-gradient(800px 200px at 20% 0%, rgba(99,102,241,.18), transparent 60%),
    radial-gradient(700px 220px at 90% 10%, rgba(34,197,94,.14), transparent 55%),
    var(--nvtrag-bg-body);
}

/* Message rows + bubbles */
.nvtrag-row{
  padding: 10px 12px;
  gap: 10px;
}
.nvtrag-bubble{
  border-radius: 18px;
  border: 1px solid rgba(148,163,184,.18);
  box-shadow: 0 8px 22px rgba(2,6,23,.08);
}
.nvtrag-row.user .nvtrag-bubble{
  border-color: rgba(37,99,235,.20);
  box-shadow: 0 10px 28px rgba(37,99,235,.10);
}
.nvtrag-row.bot .nvtrag-bubble{
  box-shadow: 0 10px 26px rgba(2,6,23,.10);
}
.nvtrag-meta{
  opacity: .72;
  font-size: 11px;
}

/* Nice scrollbar */
.nvtrag-body::-webkit-scrollbar{ width: 10px; }
.nvtrag-body::-webkit-scrollbar-thumb{ background: rgba(148,163,184,.35); border-radius: 999px; border: 3px solid transparent; background-clip: padding-box; }
.nvtrag-body::-webkit-scrollbar-thumb:hover{ background: rgba(148,163,184,.55); background-clip: padding-box; }

/* Footer (composer) */
.nvtrag-foot{
  padding: 10px 10px 12px;
  background: rgba(255,255,255,.78);
  border-top: 1px solid rgba(148,163,184,.22);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  gap: 8px;
}

.nvtrag-foot #nvtrag-msg{
  height: 42px;
  border-radius: 16px !important;
  padding: 10px 12px !important;
  background: rgba(255,255,255,.75) !important;
  border: 1px solid rgba(148,163,184,.35) !important;
  outline: none !important;
  transition: box-shadow .15s ease, border-color .15s ease, transform .15s ease;
}
.nvtrag-foot #nvtrag-msg:focus{
  border-color: rgba(99,102,241,.55) !important;
  box-shadow: var(--nvtrag-ring, 0 0 0 4px rgba(99,102,241,.14)) !important;
}

.nvtrag-btn-icon,
.nvtrag-upload-btn,
.nvtrag-voice-btn,
.nvtrag-send-btn{
  width: 42px;
  height: 42px;
  border-radius: 16px;
  display:flex;
  align-items:center;
  justify-content:center;
  border: 1px solid rgba(148,163,184,.28);
  background: rgba(255,255,255,.72);
  color: #334155;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  flex: 0 0 auto;
}
.nvtrag-btn-icon:hover,
.nvtrag-upload-btn:hover,
.nvtrag-voice-btn:hover,
.nvtrag-send-btn:hover{
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(2,6,23,.10);
  background: rgba(255,255,255,.92);
}
.nvtrag-send-btn{
  border-color: rgba(99,102,241,.35);
  color: #4f46e5;
}

/* Hide legacy "Send" text spacing */
#nvtrag-send{ padding: 0 !important; }

/* Recording bar */
.nvtrag-recording{
  display:none;
  flex: 1;
  align-items:center;
  justify-content:space-between;
  gap: 10px;
  height: 42px;
  padding: 0 12px;
  border-radius: 16px;
  border: 1px solid rgba(220,38,38,.22);
  background: rgba(254,242,242,.92);
}
.nvtrag-recording__left{ display:flex; align-items:center; gap:8px; color:#b91c1c; font-weight:700; }
.nvtrag-recording__timer{ font-variant-numeric: tabular-nums; }
.nvtrag-recording__label{ font-size: 12px; font-weight: 700; opacity: .9; }
.nvtrag-recording__actions{ display:flex; gap: 8px; }
.nvtrag-recording__btn{ width: 34px; height: 34px; border-radius: 12px; background: rgba(255,255,255,.8); }
.nvtrag-recording__btn--send{ color:#2563eb; border-color: rgba(37,99,235,.28); }

/* Product carousel UI */
.nvtrag-ui{ margin-top: 6px; }
.nvtrag-ui__title{
  font-weight: 800;
  font-size: 12px;
  margin-bottom: 10px;
  opacity: .85;
}
.nvtrag-carousel__track{
  display:flex;
  gap: 10px;
  overflow-x:auto;
  padding-bottom: 4px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.nvtrag-carousel__track::-webkit-scrollbar{ height: 8px; }
.nvtrag-carousel__track::-webkit-scrollbar-thumb{ background: rgba(148,163,184,.35); border-radius: 999px; }
.nvtrag-product{
  width: 180px;
  min-width: 180px;
  border-radius: 16px;
  border: 1px solid rgba(148,163,184,.20);
  background: rgba(255,255,255,.75);
  box-shadow: 0 10px 26px rgba(2,6,23,.08);
  padding: 10px;
  scroll-snap-align: start;
}
.nvtrag-product__img{
  display:block;
  width: 100%;
  height: 120px;
  border-radius: 14px;
  overflow:hidden;
  background: rgba(148,163,184,.12);
}
.nvtrag-product__img img{
  width:100%;
  height:100%;
  object-fit: cover;
  display:block;
}
.nvtrag-product__name{
  font-size: 12px;
  font-weight: 800;
  margin-top: 8px;
  line-height: 1.25;
  color: #0f172a;
  display:-webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow:hidden;
  min-height: 32px;
}
.nvtrag-product__price{
  margin-top: 6px;
  font-size: 12px;
  font-weight: 800;
  color: #334155;
}
.nvtrag-product__actions{
  display:flex;
  gap: 8px;
  margin-top: 10px;
}
.nvtrag-btn{
  border-radius: 12px;
  border: 1px solid rgba(99,102,241,.30);
  background: linear-gradient(90deg, rgba(37,99,235,.95), rgba(124,58,237,.92));
  color:#fff;
  font-weight: 900;
  font-size: 12px;
  padding: 8px 10px;
  cursor:pointer;
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex: 1;
}
.nvtrag-btn:disabled{ opacity:.55; cursor:not-allowed; }
.nvtrag-btn--ghost{
  background: rgba(255,255,255,.75);
  color:#334155;
  border-color: rgba(148,163,184,.30);
}

/* Dark theme polish */
.nvtrag-widget[data-theme="dark"] .nvtrag-card{
  background: linear-gradient(180deg, rgba(17,24,39,.92), rgba(31,41,55,.92)) !important;
  border-color: rgba(148,163,184,.22) !important;
  box-shadow: 0 18px 55px rgba(0,0,0,.45) !important;
}
.nvtrag-widget[data-theme="dark"] .nvtrag-foot{
  background: rgba(17,24,39,.72);
  border-top-color: rgba(148,163,184,.22);
}
.nvtrag-widget[data-theme="dark"] .nvtrag-foot #nvtrag-msg{
  background: rgba(31,41,55,.75) !important;
  border-color: rgba(148,163,184,.22) !important;
}
.nvtrag-widget[data-theme="dark"] .nvtrag-btn-icon,
.nvtrag-widget[data-theme="dark"] .nvtrag-send-btn{
  background: rgba(31,41,55,.75);
  color: #e5e7eb;
  border-color: rgba(148,163,184,.22);
}
.nvtrag-widget[data-theme="dark"] .nvtrag-product{
  background: rgba(17,24,39,.6);
  border-color: rgba(148,163,184,.20);
}
.nvtrag-widget[data-theme="dark"] .nvtrag-product__name{ color:#f9fafb; }
.nvtrag-widget[data-theme="dark"] .nvtrag-product__price{ color:#e5e7eb; }
.nvtrag-widget[data-theme="dark"] .nvtrag-btn--ghost{
  background: rgba(31,41,55,.7);
  color: #e5e7eb;
  border-color: rgba(148,163,184,.20);
}