:root {
    --sa-primary: hsl(245, 80%, 60%);
    --sa-primary-hover: hsl(245, 80%, 50%);
    --sa-bg-glass: rgba(255, 255, 255, 0.85);
    --sa-bg-dark-glass: rgba(18, 18, 24, 0.95);
    --sa-border: rgba(0, 0, 0, 0.08);
    --sa-border-glass: rgba(255, 255, 255, 0.4);
    --sa-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
    --sa-text: hsl(220, 15%, 20%);
    --sa-text-light: hsl(220, 10%, 45%);
    --sa-font: 'Inter', system-ui, -apple-system, sans-serif;
}

/* Floating Action Button (FAB) */
.shopagent-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--sa-primary), hsl(265, 80%, 60%));
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 16px rgba(100, 75, 242, 0.4);
    cursor: pointer;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.shopagent-fab:hover {
    transform: scale(1.08) translateY(-3px);
    box-shadow: 0 8px 24px rgba(100, 75, 242, 0.5);
}

.shopagent-fab svg {
    width: 26px;
    height: 26px;
    transition: transform 0.3s ease;
}

.shopagent-fab:hover svg {
    transform: rotate(5deg);
}

.shopagent-pulse {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--sa-primary);
    opacity: 0;
    animation: sa-pulse 2s infinite ease-out;
    pointer-events: none;
}

@keyframes sa-pulse {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(1.4); opacity: 0; }
}

/* Chat Container */
.shopagent-chat-container {
    position: fixed;
    bottom: 96px;
    right: 24px;
    width: 380px;
    height: 580px;
    border-radius: 20px;
    background: var(--sa-bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--sa-border-glass);
    box-shadow: var(--sa-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    font-family: var(--sa-font);
    z-index: 99999;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    transform-origin: bottom right;
}

.shopagent-hidden {
    opacity: 0;
    transform: scale(0.85) translateY(40px);
    pointer-events: none;
}

/* Header */
.shopagent-header {
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0));
    border-bottom: 1px solid var(--sa-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.shopagent-agent-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.shopagent-avatar {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--sa-primary), hsl(265, 80%, 60%));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.shopagent-avatar svg {
    width: 20px;
    height: 20px;
}

.shopagent-title-info h2 {
    font-size: 15px;
    font-weight: 600;
    color: var(--sa-text);
    margin: 0;
    line-height: 1.2;
}

.shopagent-status-indicator {
    font-size: 11px;
    color: #10b981;
    display: flex;
    align-items: center;
    gap: 4px;
}

.shopagent-status-indicator::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: #10b981;
    border-radius: 50%;
}

.shopagent-close-btn {
    background: none;
    border: none;
    color: var(--sa-text-light);
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    transition: background 0.2s ease;
}

.shopagent-close-btn:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--sa-text);
}

/* Chat Body / Messages list */
.shopagent-chat-body {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
    scroll-behavior: smooth;
}

/* Custom Scrollbar for Chat Body */
.shopagent-chat-body::-webkit-scrollbar {
    width: 6px;
}
.shopagent-chat-body::-webkit-scrollbar-track {
    background: transparent;
}
.shopagent-chat-body::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}
.shopagent-chat-body::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.2);
}

/* Message Bubbles */
.shopagent-message {
    display: flex;
    max-width: 85%;
    animation: sa-fade-in 0.3s ease;
}

@keyframes sa-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.agent-msg {
    align-self: flex-start;
}

.user-msg {
    align-self: flex-end;
}

.shopagent-bubble {
    padding: 12px 16px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.45;
    word-break: break-word;
}

.agent-msg .shopagent-bubble {
    background: #ffffff;
    color: var(--sa-text);
    border-top-left-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    border: 1px solid rgba(0,0,0,0.04);
}

.user-msg .shopagent-bubble {
    background: var(--sa-primary);
    color: #ffffff;
    border-top-right-radius: 4px;
}

/* Bullet and Numbered List styles inside chat bubble */
.shopagent-bubble ul,
.shopagent-bubble ol {
    margin: 8px 0;
    padding-left: 20px;
}

.shopagent-bubble ul {
    list-style-type: disc !important;
}

.shopagent-bubble ol {
    list-style-type: decimal !important;
}

.shopagent-bubble li {
    margin-bottom: 4px;
    display: list-item !important;
}

/* Chat Footer / Input Form */
.shopagent-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--sa-border);
    background: rgba(255, 255, 255, 0.4);
}

.shopagent-input-form {
    display: flex;
    gap: 10px;
    background: #ffffff;
    border: 1px solid var(--sa-border);
    border-radius: 12px;
    padding: 4px 6px 4px 14px;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.shopagent-input-form input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 14px;
    color: var(--sa-text);
    padding: 8px 0;
    background: transparent;
}

.shopagent-input-form input::placeholder {
    color: var(--sa-text-light);
}

.shopagent-send-btn {
    background: var(--sa-primary);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease;
}

.shopagent-send-btn:hover {
    background: var(--sa-primary-hover);
}

.shopagent-send-btn svg {
    width: 16px;
    height: 16px;
}

.shopagent-powered {
    font-size: 10px;
    text-align: center;
    color: var(--sa-text-light);
    margin-top: 8px;
}

/* Premium Vertical Product List Layout */
.sa-products-list {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sa-product-item {
    display: flex;
    align-items: center;
    padding: 10px;
    background: #ffffff;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.02);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.sa-product-item:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.06);
}

.sa-product-item img,
.sa-product-item .sa-product-placeholder-icon {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: 8px;
    margin-right: 12px;
    flex-shrink: 0;
}

.sa-product-placeholder-icon {
    background: #f3f4f6;
    color: #9ca3af;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.sa-product-info {
    flex: 1;
    min-width: 0;
}

.sa-product-info h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--sa-text);
    margin: 0 0 3px 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sa-product-info .sa-price {
    font-size: 13px;
    font-weight: 700;
    color: var(--sa-primary);
    margin: 0;
}

.sa-link-detail {
    font-size: 12px;
    font-weight: 600;
    color: var(--sa-primary);
    text-decoration: none;
    border: 1px solid var(--sa-primary);
    border-radius: 8px;
    padding: 6px 12px;
    margin-left: 12px;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.sa-link-detail:hover {
    background: var(--sa-primary);
    color: #ffffff;
}

.sa-btn-buy-now {
    font-size: 12px;
    font-weight: 600;
    color: var(--sa-primary);
    background: transparent;
    border: 1px solid var(--sa-primary);
    border-radius: 8px;
    padding: 6px 12px;
    margin-left: 12px;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.2s ease;
}

.sa-btn-buy-now:hover {
    background: var(--sa-primary);
    color: #ffffff;
}

.shopagent-message.sa-message-with-products {
    display: flex;
    flex-direction: column;
    max-width: 100%;
    align-self: stretch;
}

.sa-product-card h4 {
    font-size: 12px;
    font-weight: 600;
    color: var(--sa-text);
    margin: 0 0 6px 0;
    height: 32px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-height: 1.35;
}

.sa-product-card .sa-price {
    font-size: 13px;
    font-weight: 700;
    color: var(--sa-primary);
    margin: 0 0 8px 0;
}

.sa-btn-buy-combo {
    background: linear-gradient(135deg, var(--sa-primary), hsl(265, 80%, 60%));
    color: #ffffff;
    border: none;
    border-radius: 10px;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    margin-top: 6px;
    box-shadow: 0 4px 10px rgba(100, 75, 242, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.sa-btn-buy-combo:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 14px rgba(100, 75, 242, 0.3);
}

.sa-product-placeholder-icon {
    width: 100%;
    height: 100px;
    background: #f3f4f6;
    color: #9ca3af;
    border-radius: 8px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

/* Alternative recommendations alert styling */
.sa-alternative-box {
    background: hsl(45, 100%, 96%);
    border: 1px solid hsl(45, 100%, 85%);
    border-radius: 12px;
    padding: 12px;
    font-size: 13px;
    color: hsl(45, 80%, 25%);
    margin: 8px 0;
}

.sa-alternative-box h5 {
    margin: 0 0 6px 0;
    font-weight: 600;
}

.sa-alternative-box ul {
    margin: 0;
    padding-left: 18px;
}

/* Skeleton Loading indicator */
.shopagent-loading-bubble {
    display: flex;
    gap: 4px;
    padding: 12px 18px;
    background: #ffffff;
    border-radius: 18px;
    border-top-left-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
    align-self: flex-start;
}

.shopagent-loading-dot {
    width: 8px;
    height: 8px;
    background-color: var(--sa-text-light);
    border-radius: 50%;
    animation: sa-bounce 1.4s infinite ease-in-out both;
}

.shopagent-loading-dot:nth-child(1) { animation-delay: -0.32s; }
.shopagent-loading-dot:nth-child(2) { animation-delay: -0.16s; }

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

/* Responsive adjustment */
@media (max-width: 480px) {
    .shopagent-chat-container {
        width: calc(100% - 32px);
        right: 16px;
        bottom: 84px;
        height: calc(100% - 100px);
    }
}