#ds-chat-widget {
    position: fixed;
    z-index: 9999;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.ds-chat-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    box-shadow: 0 8px 16px rgba(0,0,0,0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    border: none;
    padding: 0;
    margin: 0;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    line-height: 0;
}

.ds-chat-btn .ds-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
}

.ds-chat-btn:hover {
    transform: scale(1.1);
}

.ds-chat-window {
    position: absolute;
    bottom: 80px;
    width: 350px;
    height: 500px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 24px;
    box-shadow: 0 15px 45px rgba(0,0,0,0.15);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.ds-chat-window.ds-align-right {
    right: 0;
}

.ds-chat-window.ds-align-left {
    left: 0;
}

.ds-chat-window.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.ds-chat-header {
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.5);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ds-chat-header h4 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
}

.ds-chat-close {
    background: none;
    border: none;
    cursor: pointer;
    color: #999;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

.ds-chat-close:hover {
    color: #333;
}

.ds-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    scroll-behavior: smooth;
}

/* Hide scrollbar for Chrome, Safari and Opera */
.ds-chat-messages::-webkit-scrollbar {
    display: none;
}

/* Hide scrollbar for IE, Edge and Firefox */
.ds-chat-messages {
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;  /* Firefox */
}

.ds-message {
    display: flex;
    flex-direction: column;
    max-width: 85%;
}

.ds-message.user {
    align-self: flex-end;
}

.ds-message.assistant {
    align-self: flex-start;
}

.ds-text {
    padding: 12px 18px;
    font-size: 14px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
}

.ds-message.user .ds-text {
    background: var(--chat-color, #007bff);
    color: #fff;
    border-radius: 20px 20px 4px 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
}

.ds-message.assistant .ds-text {
    background: #fff;
    color: #333;
    border-radius: 20px 20px 20px 4px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.ds-message.typing .ds-text {
    color: #999;
    font-style: italic;
    background: rgba(0, 0, 0, 0.02);
    box-shadow: none;
}

.ds-chat-input {
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.8);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 12px;
}

#ds-input {
    flex: 1;
    background: #f4f7f6;
    border: 1px solid transparent;
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 14px;
    outline: none;
    transition: all 0.2s;
}

#ds-input:focus {
    background: #fff;
    border-color: var(--chat-color, #007bff);
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.08);
}

#ds-send {
    background: var(--chat-color, #007bff);
    color: #fff;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18);
    line-height: 0;
    padding: 0;
}

#ds-send:hover:not(:disabled) {
    filter: brightness(0.92);
    transform: translateY(-2px);
}

#ds-send:disabled {
    opacity: 0.5;
    cursor: default;
    box-shadow: none;
}

#ds-send svg {
    display: block;
    transform-origin: center center;
}

@media (max-width: 480px) {
    .ds-chat-window {
        width: calc(100vw - 40px);
        height: calc(100vh - 120px);
        bottom: 70px;
    }
}