/* ═══════════════════════════════════════════════════════════════════
   AI Shopping Assistant – Chat Widget Styles
   ═══════════════════════════════════════════════════════════════════ */

/* ── Variables ───────────────────────────────────────────────────── */
:root {
    --sai-primary:    #00c44f;
    --sai-primary-dk: #00a341;
    --sai-bg:         #f5f6f8;
    --sai-white:      #ffffff;
    --sai-text:       #1a1a2e;
    --sai-text-light: #64748b;
    --sai-border:     #e2e8f0;
    --sai-shadow:     0 8px 32px rgba(0, 0, 0, 0.15);
    --sai-radius:     14px;
}

/* ── Toggle Button ───────────────────────────────────────────────── */
.sai-toggle {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 2147483647;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: none;
    background: var(--sai-primary);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 196, 79, 0.4);
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
}

.sai-toggle:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 28px rgba(0, 196, 79, 0.5);
    background: var(--sai-primary-dk);
}

.sai-toggle .sai-icon-close { display: none; }
.sai-toggle.sai-active .sai-icon-chat { display: none; }
.sai-toggle.sai-active .sai-icon-close { display: block; }

.sai-toggle.sai-active {
    background: #374151;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

/* ── Chat Window ─────────────────────────────────────────────────── */
.sai-window {
    position: fixed;
    bottom: 100px;
    right: 24px;
    z-index: 2147483646;
    width: 400px;
    min-width: 300px;
    max-width: calc(100vw - 32px);
    height: 560px;
    min-height: 350px;
    max-height: calc(100vh - 140px);
    background: var(--sai-white);
    border-radius: var(--sai-radius);
    box-shadow: var(--sai-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: opacity 0.3s, transform 0.3s, visibility 0.3s;
}

/* ── Resize Handles ─────────────────────────────────────────────── */
.sai-resize-handle {
    position: absolute;
    z-index: 10;
}

.sai-resize-handle-top {
    top: -4px;
    left: 14px;
    right: 14px;
    height: 8px;
    cursor: n-resize;
}

.sai-resize-handle-left {
    top: 14px;
    left: -4px;
    bottom: 14px;
    width: 8px;
    cursor: w-resize;
}

.sai-resize-handle-corner {
    top: -6px;
    left: -6px;
    width: 16px;
    height: 16px;
    cursor: nw-resize;
}

.sai-window.sai-resizing {
    transition: none;
    user-select: none;
}

.sai-window.sai-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.sai-window.sai-dragover {
    outline: 3px dashed var(--sai-primary);
    outline-offset: -3px;
}

.sai-window.sai-dragover .sai-messages {
    opacity: 0.5;
}

/* ── Header ──────────────────────────────────────────────────────── */
.sai-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--sai-primary);
    color: #fff;
    flex-shrink: 0;
}

.sai-header-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sai-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sai-header-name {
    font-weight: 700;
    font-size: 15px;
    line-height: 1.2;
}

.sai-header-status {
    font-size: 11px;
    opacity: 0.85;
    margin-top: 2px;
}

.sai-close,
.sai-fullscreen,
.sai-new-chat {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #fff;
    transition: background 0.2s;
}

.sai-close:hover,
.sai-fullscreen:hover,
.sai-new-chat:hover {
    background: rgba(255, 255, 255, 0.3);
}

.sai-fullscreen .sai-icon-collapse { display: none; }
.sai-window.sai-fullscreen-mode .sai-fullscreen .sai-icon-expand  { display: none; }
.sai-window.sai-fullscreen-mode .sai-fullscreen .sai-icon-collapse { display: flex; }

/* ── Fullscreen Mode ─────────────────────────────────────────────── */
.sai-window.sai-fullscreen-mode {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    max-width: 100vw;
    height: 100vh;
    max-height: 100vh;
    border-radius: 0;
}

.sai-window.sai-fullscreen-mode .sai-products-grid {
    grid-template-columns: repeat(4, 1fr);
}

/* ── Messages Area ───────────────────────────────────────────────── */
.sai-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    background: var(--sai-bg);
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}

.sai-messages::-webkit-scrollbar {
    width: 5px;
}

.sai-messages::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}

/* ── Message Bubbles ─────────────────────────────────────────────── */
.sai-msg {
    display: flex;
    animation: saiFadeIn 0.3s ease;
}

@keyframes saiFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.sai-msg-user {
    justify-content: flex-end;
}

.sai-msg-bot {
    flex-direction: column;
    align-items: flex-start;
    max-width: 95%;
}

.sai-bubble {
    max-width: 88%;
    border-radius: 16px;
    padding: 10px 14px;
    font-size: 13.5px;
    line-height: 1.55;
    word-wrap: break-word;
}

.sai-bubble p {
    margin: 0 0 6px;
}

.sai-bubble p:last-child {
    margin-bottom: 0;
}

.sai-bubble-user {
    background: var(--sai-primary);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.sai-bubble-bot {
    background: var(--sai-white);
    color: var(--sai-text);
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
    max-width: 95%;
}

.sai-bot-text {
    margin-bottom: 4px;
}

.sai-bot-text strong {
    font-weight: 600;
    color: var(--sai-text);
}

/* ── Markdown: Headers ─────────────────────────────────────────── */
.sai-bot-text .sai-h {
    margin: 10px 0 6px;
    line-height: 1.3;
    color: var(--sai-text);
}

.sai-bot-text h1.sai-h {
    font-size: 17px;
    font-weight: 700;
    padding-bottom: 5px;
    border-bottom: 2px solid rgba(0, 196, 79, 0.2);
}

.sai-bot-text h2.sai-h {
    font-size: 15px;
    font-weight: 700;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--sai-border);
}

.sai-bot-text h3.sai-h {
    font-size: 14px;
    font-weight: 600;
}

.sai-bot-text h4.sai-h,
.sai-bot-text h5.sai-h,
.sai-bot-text h6.sai-h {
    font-size: 13px;
    font-weight: 600;
    color: var(--sai-text-light);
}

.sai-bot-text .sai-h:first-child {
    margin-top: 0;
}

/* ── Markdown: Lists ───────────────────────────────────────────── */
.sai-bot-text .sai-list {
    margin: 6px 0;
    padding-left: 20px;
}

.sai-bot-text .sai-list li {
    margin-bottom: 4px;
    font-size: 13px;
    line-height: 1.5;
    position: relative;
}

.sai-bot-text ul.sai-list {
    list-style: none;
    padding-left: 16px;
}

.sai-bot-text ul.sai-list li::before {
    content: '';
    position: absolute;
    left: -14px;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--sai-primary);
}

.sai-bot-text ol.sai-ol {
    list-style: none;
    padding-left: 20px;
    counter-reset: sai-counter;
}

.sai-bot-text ol.sai-ol li {
    counter-increment: sai-counter;
}

.sai-bot-text ol.sai-ol li::before {
    content: counter(sai-counter);
    position: absolute;
    left: -22px;
    top: 1px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--sai-primary);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ── Markdown: Code ────────────────────────────────────────────── */
.sai-bot-text .sai-inline-code {
    background: #f1f5f9;
    color: #e11d48;
    padding: 1px 5px;
    border-radius: 4px;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 12px;
    border: 1px solid #e2e8f0;
}

.sai-bot-text .sai-code-block {
    margin: 8px 0;
    border-radius: 8px;
    overflow: hidden;
    background: #1e293b;
    border: 1px solid #334155;
}

.sai-bot-text .sai-code-lang {
    padding: 4px 12px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #94a3b8;
    background: #0f172a;
    border-bottom: 1px solid #334155;
}

.sai-bot-text .sai-code-block pre {
    margin: 0;
    padding: 10px 12px;
    overflow-x: auto;
    background: #1e293b !important;
}

.sai-bot-text .sai-code-block code {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 12px;
    line-height: 1.6;
    color: #e2e8f0;
    white-space: pre;
    background: transparent !important;
    padding: 0 !important;
}

/* Override highlight.js background to match chatbot theme */
.sai-bot-text .sai-code-block pre code.hljs {
    background: transparent !important;
    padding: 0 !important;
}

/* ── Markdown: Blockquote ──────────────────────────────────────── */
.sai-bot-text .sai-bq {
    margin: 8px 0;
    padding: 8px 12px;
    border-left: 3px solid var(--sai-primary);
    background: rgba(0, 196, 79, 0.04);
    border-radius: 0 6px 6px 0;
    font-style: italic;
    color: var(--sai-text-light);
    font-size: 13px;
}

/* ── Markdown: Horizontal Rule ─────────────────────────────────── */
.sai-bot-text .sai-hr {
    border: none;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--sai-border), transparent);
    margin: 10px 0;
}

/* ── Markdown: Emphasis ────────────────────────────────────────── */
.sai-bot-text em {
    font-style: italic;
    color: var(--sai-text-light);
}

.sai-bot-text del {
    text-decoration: line-through;
    opacity: 0.6;
}

/* ── Links in Messages ──────────────────────────────────────────── */
.sai-bubble a.sai-link {
    color: var(--sai-primary);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 2px solid var(--sai-primary);
    transition: all 0.2s ease;
    cursor: pointer;
}

.sai-bubble a.sai-link:hover {
    color: var(--sai-primary-dk);
    border-bottom-color: var(--sai-primary-dk);
    text-decoration: none;
}

.sai-bubble a.sai-link:active {
    opacity: 0.8;
}

.sai-bubble-user a.sai-link {
    color: #fff;
    border-bottom-color: rgba(255, 255, 255, 0.7);
}

.sai-bubble-user a.sai-link:hover {
    color: #f0f0f0;
    border-bottom-color: #fff;
}

/* ── Typing Indicator ────────────────────────────────────────────── */
.sai-typing {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 14px 20px;
}

.sai-dot {
    width: 8px;
    height: 8px;
    background: #94a3b8;
    border-radius: 50%;
    animation: saiBounce 1.2s infinite;
}

.sai-dot:nth-child(2) { animation-delay: 0.15s; }
.sai-dot:nth-child(3) { animation-delay: 0.3s; }

@keyframes saiBounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30%           { transform: translateY(-6px); opacity: 1; }
}

/* ── Product Grid ────────────────────────────────────────────────── */
.sai-products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    width: 100%;
    margin-top: 8px;
}

.sai-card {
    background: var(--sai-bg);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--sai-border);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.sai-card:hover {
    border-color: var(--sai-primary);
    box-shadow: 0 2px 10px rgba(0, 196, 79, 0.12);
}

.sai-card-img-link {
    display: block;
    width: 100%;
    height: 120px;
    overflow: hidden;
    background: #fff;
}

.sai-card-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s;
    padding: 6px;
}

.sai-card:hover .sai-card-img {
    transform: scale(1.05);
}

.sai-card-body {
    padding: 8px 10px 10px;
}

.sai-card-cat {
    display: inline-block;
    font-size: 10px;
    font-weight: 600;
    color: var(--sai-primary-dk);
    background: rgba(0, 196, 79, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 4px;
}

.sai-card-name {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--sai-text);
    text-decoration: none;
    line-height: 1.3;
    margin-bottom: 4px;
    /* 2 line clamp */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sai-card-name:hover {
    color: var(--sai-primary);
}

.sai-card-price {
    font-size: 13px;
    font-weight: 700;
    color: var(--sai-primary-dk);
    margin-bottom: 4px;
}

.sai-card-price del {
    color: #94a3b8;
    font-weight: 400;
    font-size: 11px;
}

.sai-card-price ins {
    text-decoration: none;
    color: #dc2626;
    font-weight: 700;
}

.sai-card-stock {
    display: inline-block;
    font-size: 10px;
    font-weight: 600;
    margin-bottom: 6px;
}

.sai-card-stock.sai-in {
    color: var(--sai-primary-dk);
}

.sai-card-stock.sai-out {
    color: #dc2626;
}

.sai-card-actions {
    display: flex;
    gap: 4px;
}

.sai-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px 4px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 6px;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    line-height: 1;
    border: none;
}

.sai-btn-view {
    background: var(--sai-white);
    color: var(--sai-text);
    border: 1px solid var(--sai-border);
}

.sai-btn-view:hover {
    background: var(--sai-text);
    color: #fff;
    border-color: var(--sai-text);
}

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

.sai-btn-cart:hover {
    background: var(--sai-primary-dk);
    color: #fff;
}

/* ── Model Toolbar ───────────────────────────────────────────────── */
.sai-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-top: 1px solid var(--sai-border);
    background: var(--sai-white);
    flex-shrink: 0;
}

.sai-model-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--sai-text-light);
    white-space: nowrap;
}

.sai-model-select {
    font-size: 11.5px;
    font-family: inherit;
    color: var(--sai-text);
    background: var(--sai-bg);
    border: 1px solid var(--sai-border);
    border-radius: 6px;
    padding: 3px 22px 3px 8px;
    outline: none;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2364748b' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 7px center;
    transition: border-color 0.2s;
}

.sai-model-select:focus,
.sai-model-select:hover {
    border-color: var(--sai-primary);
}

/* ── Attachment Preview ─────────────────────────────────────────── */
.sai-attach-preview {
    display: none;
    flex-shrink: 0;
    background: var(--sai-white);
    border-top: 1px solid var(--sai-border);
}

.sai-attach-preview.sai-has-files {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 10px 14px;
}

.sai-attach-thumbs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
}

.sai-quick-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.sai-quick-btn {
    padding: 5px 10px;
    font-size: 11px;
    font-weight: 600;
    font-family: inherit;
    border: 1px solid rgba(0, 196, 79, 0.3);
    border-radius: 16px;
    background: rgba(0, 196, 79, 0.06);
    color: var(--sai-primary-dk);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.sai-quick-btn:hover {
    background: var(--sai-primary);
    color: #fff;
    border-color: var(--sai-primary);
}

.sai-attach-item {
    position: relative;
    width: 64px;
    height: 64px;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid var(--sai-border);
    flex-shrink: 0;
    background: var(--sai-bg);
}

.sai-attach-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sai-attach-item .sai-attach-file-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    font-size: 22px;
}

.sai-attach-item .sai-attach-name {
    display: block;
    font-size: 8px;
    text-align: center;
    padding: 0 4px;
    color: var(--sai-text-light);
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.sai-attach-remove {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: none;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 12px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.sai-attach-remove:hover {
    background: #dc2626;
}

/* ── Attachment Button ─────────────────────────────────────────── */
.sai-attach-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--sai-text-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: color 0.2s, background 0.2s;
}

.sai-attach-btn:hover {
    color: var(--sai-primary);
    background: rgba(0, 196, 79, 0.08);
}

/* ── User Attachment Thumbnails ────────────────────────────────── */
.sai-user-attachments {
    display: flex;
    gap: 6px;
    margin-bottom: 6px;
    flex-wrap: wrap;
}

.sai-user-attach-img {
    width: 120px;
    max-height: 120px;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.sai-user-attach-file {
    font-size: 11px;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 6px;
}

/* ── Input Area ──────────────────────────────────────────────────── */
.sai-input-area {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 12px 14px;
    border-top: 1px solid var(--sai-border);
    background: var(--sai-white);
    flex-shrink: 0;
}

.sai-input {
    flex: 1;
    border: 1px solid var(--sai-border);
    border-radius: 10px;
    padding: 9px 12px;
    font-size: 13.5px;
    font-family: inherit;
    resize: none;
    outline: none;
    background: var(--sai-bg);
    color: var(--sai-text);
    max-height: 100px;
    line-height: 1.4;
    transition: border-color 0.2s;
}

.sai-input:focus {
    border-color: var(--sai-primary);
    background: var(--sai-white);
}

.sai-input::placeholder {
    color: #94a3b8;
}

.sai-send {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 10px;
    background: var(--sai-primary);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.2s, transform 0.1s;
}

.sai-send:hover {
    background: var(--sai-primary-dk);
}

.sai-send:active {
    transform: scale(0.93);
}

.sai-send.sai-disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 480px) {
    .sai-window {
        right: 0;
        bottom: 0;
        width: 100vw;
        max-width: 100vw;
        height: 100vh;
        max-height: 100vh;
        border-radius: 0;
    }

    .sai-toggle {
        bottom: 16px;
        right: 16px;
        width: 54px;
        height: 54px;
    }

    /* Hide floating toggle when chat is open — header X button is sufficient */
    .sai-toggle.sai-active {
        display: none;
    }

    /* Ensure chatbot is always on top of everything on mobile */
    .sai-window {
        z-index: 2147483647;
    }

    .sai-products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 481px) and (max-width: 768px) {
    .sai-window {
        width: 360px;
        height: 500px;
        right: 16px;
        bottom: 90px;
    }
}