#chat-widget {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 1050;
}

.chat-toggle {
    width: 62px;
    height: 62px;
    border: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    box-shadow: 0 14px 34px rgba(37, 99, 235, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.chat-toggle i {
    font-size: 1.45rem;
}

.chat-toggle:hover,
.chat-toggle:focus-visible {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 18px 38px rgba(29, 78, 216, 0.42);
}

.chat-panel {
    position: absolute;
    right: 0;
    bottom: 78px;
    width: 360px;
    max-height: min(78vh, 640px);
    border: 0;
    border-radius: 18px;
    overflow: hidden;
    background: #ffffff;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.2);
}

.chat-panel-header {
    padding: 0.9rem 1rem;
    color: #ffffff;
    background: linear-gradient(140deg, #1d4ed8 0%, #2563eb 45%, #4f46e5 100%);
}

.chat-panel-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
}

.chat-panel-subtitle {
    margin: 0;
    font-size: 0.8rem;
    opacity: 0.9;
}

.chat-close {
    width: 32px;
    height: 32px;
    border: 0;
    border-radius: 8px;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.2);
}

.chat-close:hover,
.chat-close:focus-visible {
    background: rgba(255, 255, 255, 0.3);
}

.chat-content {
    min-height: 300px;
    max-height: min(58vh, 500px);
    overflow-y: auto;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.chat-placeholder {
    color: #64748b;
    font-size: 0.95rem;
}

.chat-list {
    padding: 0.75rem;
}

.chat-list-item {
    width: 100%;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #ffffff;
    text-align: left;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.chat-list-item:hover {
    border-color: #93c5fd;
    box-shadow: 0 6px 16px rgba(148, 163, 184, 0.22);
    transform: translateY(-1px);
}

.chat-user-link {
    font-weight: 700;
    color: #0f172a;
    text-decoration: none;
}

.chat-user-link:hover {
    color: #1d4ed8;
}

.chat-last-message {
    display: block;
    margin-top: 0.25rem;
    color: #64748b;
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-bubble-row {
    margin-bottom: 0.55rem;
    display: flex;
}

.chat-bubble-row.mine {
    justify-content: flex-end;
}

.chat-bubble {
    display: inline-block;
    max-width: 86%;
    padding: 0.55rem 0.75rem;
    border-radius: 12px;
    line-height: 1.35;
    font-size: 0.88rem;
    word-break: break-word;
    background: #ffffff;
    color: #0f172a;
    border: 1px solid #e2e8f0;
}

.chat-bubble.mine {
    background: #2563eb;
    color: #ffffff;
    border-color: #2563eb;
}

.widget-chat-header {
    padding-bottom: 0.6rem;
    margin-bottom: 0.8rem;
    border-bottom: 1px solid #e2e8f0;
}

.widget-chat-body {
    padding: 0.85rem;
}

.widget-chat-form {
    padding-top: 0.5rem;
    margin-top: 0.5rem;
    border-top: 1px solid #e2e8f0;
}

#widgetMessageInput {
    border-radius: 10px;
    border: 1px solid #cbd5e1;
}

.widget-send-btn {
    margin-top: 0.45rem;
    border-radius: 10px;
    font-weight: 600;
}

footer {
    position: relative;
    z-index: 1;
}

@media (max-width: 576px) {
    #chat-widget {
        right: 12px;
        bottom: 12px;
    }

    .chat-panel {
        width: calc(100vw - 24px);
        right: 0;
        bottom: 74px;
    }
}