:root {
    --kalicube-primary: #339933;
    --kalicube-secondary: #3399CC;
    --kalicube-primary-foreground: #ffffff;
    --kalicube-muted: #f1f5f9;
    --kalicube-muted-foreground: #64748b;
    --kalicube-border: #e2e8f0;
    --kalicube-input-bg: #ffffff;
    --kalicube-foreground: #0f172a;
    --kalicube-radius-lg: 1rem;
    --kalicube-radius-md: 0.75rem;
    --kalicube-radius-sm: 0.5rem;
}

/* Reset & Base */
#kalicube-chat-widget-container,
.kalicube-chat-inline {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    box-sizing: border-box;
    line-height: 1.5;
    color: var(--kalicube-foreground);
}

#kalicube-chat-widget-container *,
.kalicube-chat-inline * {
    box-sizing: border-box;
}

/* Floating Widget Container */
#kalicube-chat-widget-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    max-width: 100%;
}

#kalicube-chat-widget-container.kalicube-position-left {
    align-items: flex-start;
}

#kalicube-chat-widget-container.kalicube-position-right {
    align-items: flex-end;
}

/* Toggle Button */
#kalicube-chat-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--kalicube-primary);
    color: var(--kalicube-primary-foreground);
    border: none;
    cursor: pointer;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0;
}

#kalicube-chat-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

#kalicube-chat-toggle.hidden {
    transform: scale(0);
    opacity: 0;
    pointer-events: none;
}

/* Chat Window */
.kalicube-chat-window {
    position: absolute;
    bottom: 0;
    right: 0;
    width: min(384px, calc(100vw - 32px));
    height: min(600px, calc(100vh - 96px));
    max-height: calc(100vh - 96px);
    background-color: #fff;
    border: 1px solid var(--kalicube-border);
    border-radius: var(--kalicube-radius-lg);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: bottom right;
    overflow: hidden;
}

#kalicube-chat-widget-container.kalicube-position-left .kalicube-chat-window {
    right: auto;
    left: 0;
    transform-origin: bottom left;
}

.kalicube-chat-window.closed {
    transform: scale(0.95);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
}

/* Header */
.kalicube-chat-header {
    background-color: var(--kalicube-primary);
    color: var(--kalicube-primary-foreground);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top-left-radius: var(--kalicube-radius-lg);
    border-top-right-radius: var(--kalicube-radius-lg);
}

.kalicube-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.kalicube-header-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.kalicube-header-icon svg {
    color: var(--kalicube-primary-foreground);
}

.kalicube-header-text h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--kalicube-primary-foreground);
    line-height: 1.2;
}

.kalicube-header-text p {
    margin: 0;
    font-size: 12px;
    opacity: 0.8;
    color: var(--kalicube-primary-foreground);
}

#kalicube-chat-close {
    background: none;
    border: none;
    color: var(--kalicube-primary-foreground);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--kalicube-radius-sm);
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

#kalicube-chat-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Messages Area */
.kalicube-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    background-color: rgba(241, 245, 249, 0.5); /* bg-background/50 approx */
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chat-message {
    display: flex;
    width: 100%;
}

.chat-message.user {
    justify-content: flex-end;
}

.chat-message.bot {
    justify-content: flex-start;
}

.message-content {
    padding: 8px 16px;
    border-radius: var(--kalicube-radius-md); /* rounded-xl */
    font-size: 14px;
    max-width: min(280px, 100%);
    word-wrap: break-word;
}

.chat-message.user .message-content {
    background-color: var(--kalicube-primary);
    color: var(--kalicube-primary-foreground);
    border-bottom-right-radius: 0;
}

.chat-message.bot .message-content {
    background-color: var(--kalicube-muted);
    color: var(--kalicube-muted-foreground);
    border-bottom-left-radius: 0;
}

/* Citations */
.message-citations {
    margin-top: 8px;
    padding: 0 8px;
    max-width: min(280px, 100%);
}

.message-citations strong {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--kalicube-muted-foreground);
    margin-bottom: 4px;
}

.message-citations ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.message-citations li {
    margin-bottom: 6px;
}

.message-citations a {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    font-size: 12px;
    line-height: 1.4;
    color: var(--kalicube-secondary);
    text-decoration: none;
    word-break: break-word;
}

.message-citations a:hover {
    text-decoration: underline;
}

.citation-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    margin-top: 2px; /* Align with first line of text */
}

.view-all-sources-btn {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    outline: none !important;
    color: var(--kalicube-secondary) !important;
    font-size: 12px;
    cursor: pointer;
    padding: 4px 0;
    margin-top: 4px;
    font-weight: 600;
    display: inline-block;
    text-align: left;
}

.view-all-sources-btn:hover {
    text-decoration: underline;
    background: transparent !important;
    color: var(--kalicube-primary) !important;
}

/* Loading Indicator */
.loading-dots {
    display: flex;
    gap: 4px;
    padding: 8px 16px;
    background-color: var(--kalicube-muted);
    border-radius: var(--kalicube-radius-md);
    border-bottom-left-radius: 0;
    width: fit-content;
}

.dot {
    width: 8px;
    height: 8px;
    background-color: var(--kalicube-muted-foreground);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

.dot:nth-child(2) { animation-delay: 0.2s; }
.dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Thinking Indicator */
.thinking-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 8px;
    background-color: transparent;
    width: 100%;
    max-width: 100%;
    margin-top: -8px; /* Pull it up slightly closer to the previous message */
    margin-bottom: 8px;
}

.thinking-indicator .loading-dots {
    padding: 0;
    background: none;
    margin: 0;
}

.thinking-text {
    font-size: 12px;
    color: var(--kalicube-muted-foreground);
    font-style: italic;
    min-width: 150px;
}

/* Input Area */
.kalicube-chat-input-area {
    padding: 16px;
    background-color: #fff;
    border-top: 1px solid var(--kalicube-border);
}

.kalicube-chat-form {
    display: flex;
    gap: 8px;
}

.kalicube-chat-input {
    flex: 1;
    padding: 8px 16px;
    border: 1px solid var(--kalicube-border);
    border-radius: var(--kalicube-radius-md); /* rounded-xl */
    outline: none;
    font-size: 14px;
    background-color: var(--kalicube-input-bg);
    color: var(--kalicube-foreground);
    transition: box-shadow 0.2s, border-color 0.2s;
}

.kalicube-chat-input:focus {
    border-color: var(--kalicube-primary);
    box-shadow: 0 0 0 2px rgba(244, 102, 51, 0.2);
}

.kalicube-chat-submit {
    background-color: var(--kalicube-primary); /* Default to primary */
    color: var(--kalicube-primary-foreground);
    border: none;
    border-radius: var(--kalicube-radius-md); /* rounded-xl */
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s;
    padding: 0;
}

.kalicube-chat-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.kalicube-chat-submit svg {
    width: 16px;
    height: 16px;
}

/* Inline Specifics */
.kalicube-chat-inline {
    border: 1px solid var(--kalicube-border);
    border-radius: var(--kalicube-radius-lg);
    padding: 0;
    overflow: hidden;
    max-width: 100%;
    background-color: #fff;
}

.kalicube-chat-inline .kalicube-chat-messages {
    height: 400px;
}

.kalicube-chat-inline .kalicube-chat-input-wrapper {
    padding: 16px;
    border-top: 1px solid var(--kalicube-border);
}

@media (max-width: 768px) {
    #kalicube-chat-widget-container {
        bottom: 16px;
        right: 16px;
        left: 16px;
        align-items: flex-end;
    }

    #kalicube-chat-toggle {
        width: 52px;
        height: 52px;
    }

    .kalicube-chat-window {
        width: calc(100vw - 32px);
        max-width: 100%;
        height: min(560px, calc(100vh - 120px));
        max-height: calc(100vh - 120px);
    }
}

@media (max-width: 540px) {
    #kalicube-chat-widget-container {
        right: 0;
        left: 0;
    }

    .kalicube-chat-window {
        position: fixed;
        inset: 16px 16px auto 16px;
        width: auto;
        height: calc(100vh - 120px);
        max-height: calc(100vh - 120px);
        border-radius: var(--kalicube-radius-md);
    }

    .kalicube-chat-messages {
        padding: 12px;
    }

    .kalicube-chat-header,
    .kalicube-chat-input-area {
        padding: 12px;
    }

    .kalicube-chat-input {
        font-size: 13px;
    }
}