/* 세미나 Q&A 챗봇 — 입장 화면 + 채팅 화면 */

.chat-body {
    margin: 0;
    min-height: 100vh;
    background: hsl(var(--muted));
    color: hsl(var(--foreground));
}

/* ---------- 입장 ---------- */
.entry-card {
    max-width: 400px;
    margin: 12vh auto 0;
    padding: 32px 28px;
    background: hsl(var(--card));
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius);
}

.entry-card h1 {
    margin: 0 0 8px;
    font-size: 1.5rem;
}

.entry-desc {
    margin: 0 0 24px;
    color: hsl(var(--muted-foreground));
    font-size: 0.9rem;
}

.form-error {
    margin: 0 0 12px;
    color: hsl(var(--destructive));
    font-size: 0.875rem;
}

/* ---------- 채팅 레이아웃 ---------- */
.room {
    display: grid;
    grid-template-columns: minmax(240px, 340px) 1fr;
    gap: 16px;
    height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px;
    box-sizing: border-box;
}

.task-panel,
.chat-panel {
    background: hsl(var(--card));
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius);
}

.task-panel {
    padding: 20px;
    overflow-y: auto;
}

.task-panel h2 {
    margin: 0 0 12px;
    font-size: 1.1rem;
}

.task-text {
    font-size: 0.925rem;
    line-height: 1.7;
}

.task-text.muted,
.task-me {
    color: hsl(var(--muted-foreground));
}

.task-me {
    margin-top: 20px;
    font-size: 0.8rem;
}

.chat-panel {
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.chat-header {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 14px 18px;
    border-bottom: 1px solid hsl(var(--border));
}

.chat-sub {
    color: hsl(var(--muted-foreground));
    font-size: 0.8rem;
}

.chat-log {
    flex: 1;
    overflow-y: auto;
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-empty {
    margin: auto;
    color: hsl(var(--muted-foreground));
    font-size: 0.9rem;
}

/* ---------- 메시지 ---------- */
.msg {
    display: flex;
    flex-direction: column;
    max-width: 75%;
}

.msg-user {
    align-self: flex-end;
    align-items: flex-end;
}

.msg-assistant {
    align-self: flex-start;
    align-items: flex-start;
}

.bubble {
    padding: 10px 14px;
    border-radius: 14px;
    line-height: 1.6;
    font-size: 0.95rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.msg-user .bubble {
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    border-bottom-right-radius: 4px;
}

.msg-assistant .bubble {
    background: hsl(var(--secondary));
    color: hsl(var(--secondary-foreground));
    border-bottom-left-radius: 4px;
}

.typing-indicator {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: hsl(var(--muted-foreground));
}

.typing-indicator > span:not(.typing-label) {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: hsl(var(--muted-foreground));
    animation: typing-bounce 1.2s infinite ease-in-out;
}

.typing-indicator > span:nth-child(2) { animation-delay: 0.15s; }
.typing-indicator > span:nth-child(3) { animation-delay: 0.3s; }

.typing-label {
    margin-left: 6px;
    font-size: 0.85rem;
}

@keyframes typing-bounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-4px); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .typing-indicator > span:not(.typing-label) { animation: none; opacity: 0.6; }
}

.msg-note {
    margin-top: 4px;
    padding-left: 4px;
    font-size: 0.78rem;
    color: hsl(var(--muted-foreground));
}

/* ---------- 입력 ---------- */
.ask-form {
    display: flex;
    gap: 8px;
    padding: 12px 18px 4px;
    border-top: 1px solid hsl(var(--border));
}

.ask-form textarea {
    flex: 1;
    resize: none;
    padding: 10px 12px;
    font: inherit;
    font-size: 0.95rem;
    border: 1px solid hsl(var(--input));
    border-radius: var(--radius);
    background: hsl(var(--background));
    color: hsl(var(--foreground));
}

.ask-form textarea:focus {
    outline: none;
    border-color: hsl(var(--ring));
}

.ask-status {
    min-height: 1.2em;
    margin: 4px 18px 10px;
    font-size: 0.8rem;
    color: hsl(var(--muted-foreground));
}

.ask-status.is-error {
    color: hsl(var(--destructive));
}

@media (max-width: 768px) {
    .room {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
        height: auto;
        min-height: 100vh;
        padding: 8px;
    }

    .task-panel {
        max-height: 30vh;
    }

    .chat-panel {
        height: 68vh;
    }

    .msg {
        max-width: 90%;
    }
}