.shop-chat-widget * { box-sizing: border-box; margin: 0; padding: 0; }

.shop-chat-widget .chat-launcher {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9998;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #6366f1;
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(99,102,241,0.4);
    transition: transform 0.2s, box-shadow 0.2s;
    font-size: 24px;
}
.shop-chat-widget .chat-launcher:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 28px rgba(99,102,241,0.5);
}
.shop-chat-widget .chat-launcher .unread-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: #ef4444;
    color: #fff;
    border-radius: 50%;
    min-width: 20px;
    height: 20px;
    font-size: 11px;
    display: none;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    line-height: 1;
    padding: 0 4px;
}
.shop-chat-widget .chat-launcher .unread-badge.show { display: flex; }

.shop-chat-widget .chat-panel {
    position: fixed;
    bottom: 96px;
    right: 24px;
    z-index: 9999;
    width: 360px;
    max-height: 520px;
    height: 480px;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.15);
    display: none;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid #e5e7eb;
}
.dark .shop-chat-widget .chat-panel {
    background: #1e293b;
    border-color: #334155;
}
.shop-chat-widget .chat-panel.open { display: flex; }

.shop-chat-widget .chat-header {
    background: #6366f1;
    color: #fff;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 15px;
    font-weight: 600;
    flex-shrink: 0;
}
.shop-chat-widget .chat-header button {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 18px;
    opacity: 0.8;
    transition: opacity 0.15s;
    padding: 4px;
}
.shop-chat-widget .chat-header button:hover { opacity: 1; }

.shop-chat-widget .chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: #f8fafc;
}
.dark .shop-chat-widget .chat-messages { background: #0f172a; }

.shop-chat-widget .chat-message {
    max-width: 80%;
    padding: 10px 14px;
    border-radius: 14px;
    font-size: 14px;
    line-height: 1.5;
    word-break: break-word;
    animation: chatFadeIn 0.2s ease;
}
@keyframes chatFadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.shop-chat-widget .chat-message.user {
    align-self: flex-end;
    background: #6366f1;
    color: #fff;
    border-bottom-right-radius: 4px;
}
.shop-chat-widget .chat-message.admin {
    align-self: flex-start;
    background: #e2e8f0;
    color: #1e293b;
    border-bottom-left-radius: 4px;
}
.dark .shop-chat-widget .chat-message.admin {
    background: #334155;
    color: #e2e8f0;
}

.shop-chat-widget .chat-message .msg-time {
    font-size: 10px;
    opacity: 0.6;
    margin-top: 4px;
    text-align: right;
}

.shop-chat-widget .chat-input-area {
    padding: 12px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    gap: 8px;
    background: #fff;
    flex-shrink: 0;
}
.dark .shop-chat-widget .chat-input-area {
    background: #1e293b;
    border-color: #334155;
}
.shop-chat-widget .chat-input-area input {
    flex: 1;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
    background: #f8fafc;
    color: #1e293b;
}
.dark .shop-chat-widget .chat-input-area input {
    background: #0f172a;
    border-color: #334155;
    color: #e2e8f0;
}
.shop-chat-widget .chat-input-area input:focus { border-color: #6366f1; }
.shop-chat-widget .chat-input-area button {
    background: #6366f1;
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    flex-shrink: 0;
}
.shop-chat-widget .chat-input-area button:hover { background: #4f46e5; }
.shop-chat-widget .chat-input-area button:disabled { opacity: 0.5; cursor: not-allowed; }

.shop-chat-widget .chat-typing {
    font-size: 12px;
    color: #94a3b8;
    padding: 0 12px 8px;
    display: none;
}
.shop-chat-widget .chat-typing.show { display: block; }

@media (max-width: 640px) {
    .shop-chat-widget .chat-panel {
        width: 100vw;
        max-height: 100vh;
        height: 100vh;
        bottom: 0;
        right: 0;
        border-radius: 0;
    }
    .shop-chat-widget .chat-launcher {
        bottom: 16px;
        right: 16px;
        width: 50px;
        height: 50px;
    }
}