.header-left {
    grid-area: header-left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 1.4rem;
    background:
        radial-gradient(circle at top right, rgba(251, 191, 36, 0.2), transparent 35%),
        linear-gradient(135deg, rgba(67, 20, 7, 0.98), rgba(154, 52, 18, 0.94));
}

.information-title {
    display: flex;
    align-items: center;
    gap: 0.95rem;
}

.book-icon {
    flex: 0 0 auto;
    width: 38px;
    height: 38px;
}

.information-title h1 {
    margin: 0;
    font-size: clamp(1.5rem, 2vw, 1.9rem);
}

.tagline {
    margin: 0.2rem 0 0;
    color: rgba(255, 237, 213, 0.9);
}

.header-tools {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.header-right {
    grid-area: header-right;
    padding: 0.45rem;
}

.chat-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    min-height: 100%;
    padding: 1rem 1.2rem;
}

.eyebrow {
    margin: 0 0 0.2rem;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #b45309;
    font-weight: 800;
}

.chat-meta h2 {
    margin: 0;
    font-size: clamp(1.2rem, 2vw, 1.5rem);
}

.chat-meta p:last-child {
    margin: 0.3rem 0 0;
    color: var(--muted);
}

.chat-actions {
    display: flex;
    gap: 0.7rem;
}

.chat-btn {
    min-width: 92px;
    padding: 0.75rem 1rem;
    color: var(--accent-2);
    background: rgba(251, 191, 36, 0.18);
    font-weight: 700;
}

@media (max-width: 720px) {
    .header-left,
    .chat-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-tools,
    .chat-actions {
        width: 100%;
        justify-content: flex-start;
    }
}