frontend-widget/src/styles.css

/* Shadow DOM host element */
:host {
    display: block;

    /* ── Theming via CSS custom properties ──────────────────────────
       Override these on the <smart-chatbot> element from the host page:

       smart-chatbot {
           --chatbot-btn-bg: rgba(124, 111, 247, 0.3);
           ...
       }

       The Admin Console will generate this snippet per tenant.
       Defaults below are the light/glassmorphism theme (HF Space).
    ── */

    --chatbot-btn-bg:              rgba(255, 255, 255, 0.2);
    --chatbot-btn-border:          rgba(255, 255, 255, 0.35);
    --chatbot-btn-hover-bg:        rgba(255, 255, 255, 0.28);

    --chatbot-panel-bg:            rgba(255, 255, 255, 0.15);
    --chatbot-panel-border:        rgba(255, 255, 255, 0.25);

    --chatbot-header-bg:           rgba(102, 126, 234, 0.5);

    --chatbot-messages-bg:         rgba(255, 255, 255, 0.06);

    --chatbot-bot-msg-bg:          rgba(255, 255, 255, 0.65);
    --chatbot-bot-msg-border:      rgba(255, 255, 255, 0.5);
    --chatbot-bot-msg-color:       #1a1a2e;

    --chatbot-input-bg:            rgba(255, 255, 255, 0.75);
    --chatbot-input-color:         #1a1a2e;
    --chatbot-input-placeholder:   rgba(80, 80, 120, 0.55);

    --chatbot-thinking-bg:         rgba(0, 0, 0, 0.04);
    --chatbot-thinking-border:     rgba(0, 0, 0, 0.12);
    --chatbot-thinking-color:      rgba(0, 0, 0, 0.5);

    --chatbot-typing-color:        rgba(0, 0, 0, 0.45);
    --chatbot-typing-dot-bg:       rgba(0, 0, 0, 0.3);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ============================================================
       FLOATING CHAT BUTTON
       ============================================================ */

.chat-widget-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    background: var(--chatbot-btn-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--chatbot-btn-border);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.45);
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
    z-index: 9999;
    user-select: none;
}

.chat-widget-btn:hover {
    transform: scale(1.08);
    background: var(--chatbot-btn-hover-bg);
    box-shadow: 0 6px 32px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

/* ============================================================
       CHAT PANEL
       ============================================================ */

.chat-panel {
    position: fixed;
    bottom: 96px;
    right: 24px;
    width: 370px;
    height: 520px;
    background: var(--chatbot-panel-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--chatbot-panel-border);
    border-radius: 18px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.3);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 9998;

    /* Hidden by default */
    opacity: 0;
    pointer-events: none;
    transform: scale(0.88) translateY(16px);
    transform-origin: bottom right;
    transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.chat-panel.open {
    opacity: 1;
    pointer-events: all;
    transform: scale(1) translateY(0);
}

/* ============================================================
       HEADER
       ============================================================ */

.chat-header {
    background: var(--chatbot-header-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 16px 20px;
    border-radius: 18px 18px 0 0;
    position: relative;
    flex-shrink: 0;
}

.chat-header h1 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 2px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

.chat-close-btn {
    position: absolute;
    top: 12px;
    right: 14px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: white;
    font-size: 16px;
    cursor: pointer;
    opacity: 0.9;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.15s, background 0.15s;
}

.chat-close-btn:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.28);
}

/* ============================================================
       MESSAGES
       ============================================================ */

.chat-messages {
    flex: 1;
    padding: 14px;
    overflow-y: auto;
    background: var(--chatbot-messages-bg);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.messages-spacer {
    flex: 1;
}

.chat-messages::-webkit-scrollbar {
    width: 4px;
}

.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
}

.message {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    max-width: 88%;
    animation: slideIn 0.25s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user-message {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message.bot-message {
    align-self: flex-start;
}

.message-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.user-message .message-avatar {
    background: rgba(102, 126, 234, 0.6);
}

.bot-message .message-avatar {
    background: rgba(255, 255, 255, 0.2);
}

.message-content {
    padding: 9px 13px;
    border-radius: 14px;
    font-size: 13.5px;
    line-height: 1.45;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.user-message .message-content {
    background: rgba(102, 126, 234, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
}

.bot-message .message-content {
    background: var(--chatbot-bot-msg-bg);
    border: 1px solid var(--chatbot-bot-msg-border);
    color: var(--chatbot-bot-msg-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.message-content ul,
.message-content ol {
    padding-left: 18px;
}

.message-content p {
    margin-bottom: 6px;
}

.message-content p:last-child {
    margin-bottom: 0;
}

.message-content h1,
.message-content h2,
.message-content h3 {
    margin-top: 8px;
    margin-bottom: 4px;
}

.debug-info {
    font-size: 10px;
    color: #6c757d;
    margin-top: 6px;
    padding: 5px 8px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* ============================================================
       THINKING BLOCK
       ============================================================ */

.thinking-details {
    align-self: flex-start;
    max-width: 88%;
    font-size: 12px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--chatbot-thinking-color);
    background: var(--chatbot-thinking-bg);
    border: 1px solid var(--chatbot-thinking-border);
    border-radius: 10px;
    padding: 6px 10px;
    animation: slideIn 0.25s ease-out;
}

.thinking-details summary {
    cursor: pointer;
    font-style: italic;
    user-select: none;
}

.thinking-block {
    margin-top: 6px;
    font-size: 11px;
    opacity: 0.85;
    white-space: pre-wrap;
    line-height: 1.4;
}

/* ============================================================
       TYPING INDICATOR
       ============================================================ */

.typing-indicator {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 14px;
    color: var(--chatbot-typing-color);
    font-style: italic;
    font-size: 12px;
    background: var(--chatbot-thinking-bg);
    flex-shrink: 0;
}

.typing-content {
    background: var(--chatbot-thinking-bg) !important;
    border: 1px solid var(--chatbot-thinking-border) !important;
    color: var(--chatbot-typing-color) !important;
}

.typing-dots {
    display: flex;
    gap: 3px;
}

.typing-dots span {
    width: 5px;
    height: 5px;
    background: var(--chatbot-typing-dot-bg);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingBounce {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.35;
    }

    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

/* ============================================================
       INPUT
       ============================================================ */

.chat-input {
    display: flex;
    padding: 10px 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.1);
    gap: 8px;
    align-items: flex-end;
    flex-shrink: 0;
}

.input-container {
    flex: 1;
}

.chat-input textarea {
    width: 100%;
    padding: 9px 13px;
    line-height: 1.4;
    height: 38px;
    max-height: 110px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 18px;
    font-size: 13.5px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    outline: none;
    transition: border-color 0.2s, background 0.2s;
    overflow-y: auto;
    resize: none;
    scrollbar-width: none;
    -ms-overflow-style: none;
    background: var(--chatbot-input-bg);
    color: var(--chatbot-input-color);
}

.chat-input textarea::-webkit-scrollbar {
    display: none;
}

.chat-input textarea:focus {
    border-color: rgba(255, 255, 255, 0.7);
    background: var(--chatbot-input-bg);
}

.chat-input textarea::placeholder {
    color: var(--chatbot-input-placeholder);
}

.send-button {
    width: 38px;
    height: 38px;
    background: rgba(102, 126, 234, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: white;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.1s;
    font-size: 15px;
    flex-shrink: 0;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.send-button:hover {
    background: rgba(102, 126, 234, 1);
    transform: scale(1.06);
}

.send-button:disabled {
    background: rgba(180, 180, 200, 0.4);
    cursor: not-allowed;
    transform: none;
}

/* ============================================================
       ENVIRONMENT BADGE
       ============================================================ */

.env-badge {
    position: fixed;
    top: 12px;
    right: 12px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 6px 10px;
    border-radius: 16px;
    font-size: 11px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    z-index: 10000;
}

.env-badge.development {
    background: rgba(144, 238, 144, 0.25);
    border-color: rgba(144, 238, 144, 0.4);
}

.env-badge.production {
    background: rgba(255, 100, 100, 0.25);
    border-color: rgba(255, 100, 100, 0.4);
}

/* ============================================================
       MOBILE
       ============================================================ */

@media (max-width: 480px) {
    .chat-panel {
        width: calc(100vw - 20px);
        height: 75vh;
        right: 10px;
        bottom: 86px;
    }

    .chat-widget-btn {
        bottom: 16px;
        right: 16px;
        width: 54px;
        height: 54px;
        font-size: 22px;
    }
}