/* Chat: the docked shopping assistant. Header, tabs, messages, input and the context panel. */

/* Chat Assistant (docked). It touches the top and left of the page; the margin on the right and bottom leaves room for its shadow */
.chat-assistant {
    display: flex;
    flex-direction: column;
    min-height: 0;
    margin: 0 1rem 1rem 0;
    background: var(--white);
    border: var(--border);
    box-shadow: var(--shadow-hover);
}

/* Chat Header */
.chat-header {
    background: var(--primary);
    color: var(--white);
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.assistant-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.assistant-avatar {
    width: 40px;
    height: 40px;
    background: var(--white);
    border: var(--border-medium);
    border-radius: 10%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
    color: var(--dark);
}

.assistant-info h2 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.status {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Chat and context tabs */
.chat-tabs {
    display: flex;
    background: var(--white);
    border-top: var(--border-medium);
    border-bottom: 1px solid var(--text);
}

.chat-tab {
    flex: 1;
    padding: 0.6rem;
    background: var(--white);
    color: var(--dark);
    border: none;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;

    & + .chat-tab {
        border-left: var(--border);
    }

    &.active {
        background: var(--dark);
        color: var(--white);
    }
}

.chat-content[hidden],
.context-panel[hidden] {
    display: none;
}

/* Messages */
.chat-content {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.chat-messages {
    list-style: none;
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    background: var(--light);
}

.welcome-message {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.message-content {
    background: var(--white);
    border: var(--border);
    box-shadow: var(--shadow);
    padding: 1rem;
    flex: 1;
    max-width: 80%;
    word-wrap: break-word;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--dark);

    & ul {
        list-style: disc;
        margin: 0.5rem 0;
        padding-left: 1.5rem;
        font-size: 0.9rem;
    }

    & li {
        margin: 0.5rem 0;
        font-weight: 400;
        line-height: 1.4;
    }

    & p {
        margin: 0.75rem 0;
        font-size: 0.95rem;
        line-height: 1.5;
        font-weight: 500;
    }

    & p:first-child {
        font-weight: 700;
        font-size: 1rem;
        color: var(--primary);
        /* text-transform: uppercase; */
        letter-spacing: 0.5px;
    }

    /* The text of a message is a paragraph, but it takes the look of the message, not of a paragraph in the welcome message */
    & p.message-text {
        margin: 0;
        font-size: inherit;
        font-weight: inherit;
        color: inherit;
        letter-spacing: inherit;
    }

    & strong {
        font-weight: 700;
        color: var(--primary);
    }
}

.message {
    display: flex;
    margin-bottom: 1rem;
    gap: 0.75rem;
    align-items: flex-start;
}

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

/* A shopper's message is only as wide as its text */
.user-content {
    background: var(--info);
    border: var(--border-medium);
    box-shadow: var(--shadow);
}

.message .user-content {
    flex: 0 1 auto;
}

/* Assistant messages use the full width of the chat, so product cards have room */
.assistant-content {
    background: transparent;
    border: var(--border-thin);
    box-shadow: var(--shadow);
}

.message .assistant-content {
    max-width: 100%;
}

/* The welcome message looks like the assistant's replies */
.welcome-message .message-content {
    max-width: 100%;
    background: transparent;
    border: var(--border-thin);
    box-shadow: var(--shadow);
}

.message-time {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    text-align: right;
}

.assistant-content .message-time {
    color: #999;
    text-align: left;
}

.price {
    color: var(--primary);
    font-weight: 700;
}

/* Typing indicator */
.typing-indicator .message-content {
    background: transparent;
    border: none;
    box-shadow: none;
}

.typing-dots {
    display: flex;
    gap: 4px;

    & span {
        width: 8px;
        height: 8px;
        background: var(--primary);
        border-radius: 50%;
        animation: typing 1.4s infinite;
    }

    & span:nth-child(2) {
        animation-delay: 0.2s;
    }

    & span:nth-child(3) {
        animation-delay: 0.4s;
    }
}

.typing-status {
    margin: 4px 0 0;
    font-size: 0.85rem;
    opacity: 0.7;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

.response-info {
    background: var(--warning);
    border: var(--border-medium);
    color: var(--dark);
    padding: 0.5rem 0.75rem;
    margin: 0.5rem 0;
    font-size: 0.85rem;
    box-shadow: var(--shadow);

    & summary {
        cursor: pointer;
        font-weight: 700;
    }

    & ul {
        margin: 0.5rem 0 0 1rem;
        padding: 0;
    }

    & p {
        margin: 0.5rem 0 0;
        font-weight: 700;
    }
}

/* Product cards inside an assistant message. The text styles for lists in a message do not apply to them. */
.message-content .chat-product-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    list-style: none;
    margin: 0.75rem 0 0;
    padding-left: 0;
    font-size: inherit;
}

.chat-product-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--white);
    border: var(--border-medium);
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: var(--transition);
}

.message-content .chat-product-card {
    margin: 0;
    font-weight: inherit;
    line-height: inherit;
}

.chat-product-card:hover {
    box-shadow: var(--shadow-hover-medium);
    transform: translate(-2px, -2px);
}

.chat-product-top,
.chat-product-bottom {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.chat-product-bottom {
    justify-content: space-between;
}

.chat-product-image {
    font-size: 2rem;
}

.chat-product-name {
    display: block;
    color: var(--dark);
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.3;
    text-decoration: none;
}

.chat-product-meta {
    font-size: 0.8rem;
    color: var(--text);
}

.chat-product-add {
    width: auto;
    padding: 0.4rem 0.75rem;
    font-size: 0.75rem;
}

/* Input */
.chat-input-form {
    padding: 1rem;
    background: var(--white);
    border-top: var(--border);
    flex-shrink: 0;
    min-height: auto;
}

.lookup-toggle-row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.5rem;
}

.info-icon {
    font-size: 0.8rem;
    cursor: help;
}

.lookup-toggle {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--dark);
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.toggle-slider {
    width: 30px;
    height: 16px;
    background: var(--white);
    border: var(--border-medium);
    position: relative;
    transition: var(--transition);

    &::after {
        content: '';
        width: 10px;
        height: 10px;
        background: var(--dark);
        position: absolute;
        top: 1px;
        left: 1px;
        transition: var(--transition);
    }
}

#lookup-similar-responses-toggle:checked + .toggle-slider {
    background: var(--primary);

    &::after {
        background: var(--white);
        transform: translateX(14px);
    }
}

#lookup-similar-responses-toggle {
    display: none;
}

.input-container {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

#chat-input {
    flex: 1;
    padding: 0.75rem;
    background: var(--white);
    border: var(--border);
    outline: none;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--dark);
    transition: var(--transition);

    &:focus {
        box-shadow: var(--shadow-hover);
        transform: translate(-1px, -1px);
    }
}

.send-btn {
    background: var(--primary);
    border: var(--border);
    color: var(--white);
    padding: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);

    &:hover {
        background: var(--success);
        box-shadow: var(--shadow-hover);
        transform: translate(-1px, -1px);
    }

    &:active {
        box-shadow: var(--shadow-active);
        transform: translate(1px, 1px);
    }
}

.quick-suggestions {
    list-style: none;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    opacity: 1;
    visibility: visible;
    position: relative;
    z-index: 10;

    /* A reply without follow-ups */
    &:empty {
        display: none;
    }
}

.reply-footer {
    margin-bottom: 1rem;

    & .quick-suggestions {
        margin-bottom: 0.5rem;
    }
}

.suggestion-btn {
    background: var(--white);
    border: var(--border-medium);
    padding: 0.5rem 0.75rem;
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    box-shadow: var(--shadow);

    &:hover {
        background: var(--primary);
        color: var(--white);
        box-shadow: var(--shadow-hover-medium);
        transform: translate(-1px, -1px);
    }
}

/* Context panel */
.context-panel {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 1rem;
    background: var(--light);
}

.context-section + .context-section {
    margin-top: 1.25rem;
}

.context-section h3 {
    margin-bottom: 0.5rem;
    color: var(--dark);
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.context-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* The preferences share one box. The sessions are buttons, each with its own box. */
#context-preferences {
    padding: 0.5rem 0.75rem;
    background: var(--white);
    border: var(--border);
    box-shadow: var(--shadow);
    font-size: 0.85rem;

    &:empty {
        display: none;
    }
}

.context-summary {
    padding: 0.5rem 0.75rem;
    background: var(--white);
    border: var(--border);
    box-shadow: var(--shadow);
    font-size: 0.85rem;

    &:empty {
        display: none;
    }
}

.context-empty {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.context-session {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
    padding: 0.5rem 0.75rem;
    background: var(--white);
    border: var(--border);
    box-shadow: var(--shadow);
    cursor: pointer;
    text-align: left;
    font-family: var(--font-sans);

    &:hover {
        background: var(--accent);
    }

    &.current {
        background: var(--info);
    }
}

.context-session-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--dark);
}

.context-session-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    .chat-assistant {
        height: 80vh;
    }
}