.chat-launcher {
    position: fixed !important;
    bottom: 30px !important;
    right: 30px !important;
    z-index: 9999 !important;
    width: 65px !important;
    height: 65px !important;
    border-radius: 22px !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    background: linear-gradient(135deg, #2563eb, #7c3aed) !important;
    color: white !important;
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.3) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) !important;
    overflow: hidden;
}
.chat-launcher::before {
    content: "";
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.chat-launcher:hover::before {
    left: 100%;
}

.chat-launcher:hover {
    transform: scale(1.1) rotate(5deg) !important; /* Hơi xoay nhẹ cho cá tính */
    box-shadow: 0 20px 40px rgba(124, 58, 237, 0.4) !important;
}

.chat-launcher i {
    font-size: 32px !important;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}
#geminiChatModal .modal-content {
    border-radius: 28px !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    overflow: hidden;
    backdrop-filter: blur(20px);
}

#geminiChatModal .modal-header {
    background: white !important;
    border-bottom: 1px solid #f1f5f9 !important;
    padding: 20px 25px !important;
}

#geminiChatModal .modal-title {
    color: #1e293b !important;
    font-weight: 800 !important;
    letter-spacing: -0.5px;
}
.message {
    max-width: 85%;
    margin-bottom: 18px;
    padding: 12px 18px;
    font-size: 0.95rem;
    line-height: 1.5;
    position: relative;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.message.user {
    align-self: flex-end;
    background: linear-gradient(135deg, #2563eb, #1d4ed8) !important;
    color: white !important;
    border-radius: 20px 20px 4px 20px !important; /* Bo kiểu bong bóng Messenger */
}

.message.model {
    align-self: flex-start;
    background: #f8fafc !important;
    color: #334155 !important;
    border: 1px solid #f1f5f9 !important;
    border-radius: 20px 20px 20px 4px !important;
}
.typing-loader {
    display: flex;
    gap: 6px;
    padding: 12px 20px;
    background: #f1f5f9;
    border-radius: 20px;
    width: fit-content;
    margin-bottom: 15px;
}

.typing-loader span {
    width: 8px;
    height: 8px;
    background: #cbd5e1;
    border-radius: 50%;
    animation: bounce-modern 1.4s infinite ease-in-out;
}

@keyframes bounce-modern {
    0%, 100% { transform: translateY(0); opacity: 0.3; }
    50% { transform: translateY(-8px); opacity: 1; background: #2563eb; }
}
.modal-footer {
    background: white !important;
    border-top: 1px solid #f1f5f9 !important;
    padding: 15px !important;
}

#ai-input {
    border-radius: 12px !important;
    border: 1px solid #e2e8f0 !important;
    padding: 12px 15px !important;
    transition: 0.3s;
}

#ai-input:focus {
    border-color: #2563eb !important;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1) !important;
}
body.modal-open .chat-launcher {
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
    transform: scale(0.5) !important;
    transition: all 0.3s ease !important;
}
@media (max-width: 768px) {
    #geminiChatModal .modal-dialog {
        margin: 10px !important;
        display: flex;
        align-items: flex-end;
        min-height: calc(100% - 20px);
    }

    #geminiChatModal .modal-content {
        height: 80vh;
        border-radius: 20px !important;
    }
    .modal-body {
        padding: 10px !important;
    }
}