html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}
.layout-wrapper {
    display: flex;
    flex-direction: column;
    height: 100vh; /* Full viewport height */
}
.topoi-header {
    background-color: #f4e8d0; /* Matches logo background */
    color: var(--color-primary); /* Deep navy for contrast */
    padding: 1.5rem 0;
    border-bottom: 1px solid #ccc; /* Optional: define separation */
}

.topoi-header,
.topoi-footer {
    flex: 0 0 auto; /* Do not grow or shrink */
    padding: 0.5rem 0; /* Reduce vertical space */
}


    .topoi-header .site-title {
        margin: 0;
        font-size: 1.75rem;
    }

    .topoi-header .site-subtitle {
        margin: 0;
        font-size: 1rem;
        opacity: 0.85;
    }
.topoi-logo {
    height: 60px;
    width: auto;
    margin-right: 1rem;
}


.topoi-nav {
    margin-top: 1rem;
    display: flex;
    gap: 1.5rem;
}

    .topoi-nav .nav-link {
        color: var(--color-primary);
        text-decoration: none;
        font-weight: 500;
    }

        .topoi-nav .nav-link:hover {
            text-decoration: underline;
        }

.topoi-footer {
    background-color: #f4e8d0;
    color: var(--color-primary);
    text-align: center;
}

.topoi-footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 0.5rem;
}
main {
    flex: 1 1 auto; /* Fill remaining space */
    padding: 1rem;
}

/* Optional: Make sure container doesn't stretch too wide */
.container {
    max-width: 960px;
    margin: 0 auto;
}
.chat-bubble {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

    .chat-bubble.user {
        background-color: #f0f0f0;
        border-left: 4px solid var(--color-accent);
    }

    .chat-bubble.assistant {
        background-color: #fdf6ec;
        border-left: 4px solid var(--color-primary);
    }

.chat-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 1rem;
}
button {
    background-color: var(--color-primary);
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
}

    button:hover {
        background-color: var(--color-accent);
        color: var(--color-primary);
    }