:root {
    --bm-orange: #f0a30a;
    --bm-black: #1a1a1a;
    --bm-grey: #cccccc;
    --bm-dark-grey: #333333;
    --bm-light-grey: #f0f0f0;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bm-black);
    color: var(--bm-grey);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: var(--bm-dark-grey);
    padding: 20px;
    text-align: center;
    border-bottom: 5px solid var(--bm-orange);
}

#logo {
    width: 100px;
    height: auto;
    margin-bottom: 10px;
}

header h1 {
    color: var(--bm-light-grey);
    margin-bottom: 5px;
}

header h2 {
    color: var(--bm-orange);
    font-weight: normal;
    margin-bottom: 15px;
}

.subtitle {
    color: var(--bm-grey);
    font-size: 0.9em;
    font-style: italic;
}

main {
    flex-grow: 1;
    max-width: 900px;
    margin: 20px auto;
    padding: 0 20px;
    width: 100%;
}

section {
    background-color: var(--bm-dark-grey);
    padding: 25px;
    margin-bottom: 25px;
    border-radius: 5px;
    border-left: 3px solid var(--bm-orange);
}

section h3 {
    color: var(--bm-orange);
    margin-bottom: 15px;
    border-bottom: 1px solid var(--bm-grey);
    padding-bottom: 5px;
}

#intro p small {
    display: block;
    margin-top: 15px;
    color: #aaa;
    font-style: italic;
    font-size: 0.85em;
}

#departments ul {
    list-style: none;
    padding-left: 0;
}

#departments li {
    background-color: #2a2a2a;
    margin-bottom: 8px;
    padding: 10px 15px;
    border-radius: 3px;
    transition: background-color 0.2s ease;
}

#departments li:hover {
    background-color: #3f3f3f;
    cursor: default; /* Or pointer if interactive */
}

#location p, #chat p {
     margin-bottom: 15px;
}

#map {
    height: 400px;
    width: 100%;
    background-color: #555; /* Placeholder background */
    border-radius: 4px;
    border: 1px solid #444;
}
/* Leaflet attribution styling */
.leaflet-container {
    background: var(--bm-dark-grey);
}
.leaflet-control-attribution {
    background: rgba(26, 26, 26, 0.7) !important;
    color: var(--bm-grey) !important;
}
.leaflet-control-attribution a {
    color: var(--bm-orange) !important;
}
.leaflet-tile-pane {
    /* Optional: Apply a filter for a thematic look */
    /* filter: grayscale(80%) contrast(1.1) brightness(0.9); */
}


#chat-window {
    background-color: var(--bm-black);
    border: 1px solid #444;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    height: 350px; /* Fixed height for the chat window */
}

#chat-messages {
    flex-grow: 1;
    overflow-y: auto;
    padding: 10px;
    border-bottom: 1px solid #444;
}

.message {
    margin-bottom: 10px;
    padding: 8px 12px;
    border-radius: 15px;
    max-width: 80%;
    word-wrap: break-word;
}

.message.user {
    background-color: var(--bm-orange);
    color: var(--bm-black);
    margin-left: auto;
    border-bottom-right-radius: 3px;
}

.message.other { /* If implementing multi-user later */
    background-color: #4a4a4a;
    color: var(--bm-light-grey);
    margin-right: auto;
    border-bottom-left-radius: 3px;
}

.message.system {
    font-style: italic;
    color: #aaa;
    text-align: center;
    font-size: 0.9em;
    background: none;
}


#chat-input-area {
    display: flex;
    padding: 10px;
}

#chat-input {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid #555;
    background-color: #333;
    color: var(--bm-light-grey);
    border-radius: 3px;
    margin-right: 10px;
}

#send-button {
    padding: 10px 15px;
    background-color: var(--bm-orange);
    color: var(--bm-black);
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.2s ease;
}

#send-button:hover {
    background-color: #d88e00;
}

footer {
    text-align: center;
    padding: 15px;
    margin-top: 20px;
    font-size: 0.85em;
    color: #aaa;
    background-color: var(--bm-dark-grey);
    border-top: 1px solid #444;
}

/* Responsiveness */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.8em;
    }
     header h2 {
        font-size: 1.2em;
    }
    main {
        margin: 15px auto;
        padding: 0 15px;
    }
    section {
        padding: 20px;
    }
    #map {
        height: 300px;
    }
    #chat-window {
        height: 300px;
    }
}

@media (max-width: 480px) {
    #logo {
        width: 80px;
    }
     header h1 {
        font-size: 1.5em;
    }
     header h2 {
        font-size: 1em;
    }
    .message {
        max-width: 90%;
    }
     #chat-input-area {
        flex-direction: column;
    }
    #chat-input {
        margin-right: 0;
        margin-bottom: 10px;
    }
    #send-button {
        width: 100%;
    }
}