/*B"H*/

:root {
    --primary-bg: #2c3e50;
    --secondary-bg: #34495e;
    --border-color: #95a5a6;
    --text-color: #ecf0f1;
    --blue: #3498db;
    --green: #2ecc71;
    --red: #e74c3c;
    --grass: #8ab07a;
    --path: #6c8a5d;
}

html, body {
    background-color: var(--primary-bg);
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    width: 100%;
    height: 100%;
    overflow: hidden; /* Prevent scrolling */
}

/* --- Main Menu --- */
#main-menu {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    text-align: center;
    padding: 10px;
    box-sizing: border-box;
}

#main-menu h1 {
    font-size: 4em;
    margin-bottom: 0.5em;
}

#map-selection-container {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.map-button {
    background-color: var(--secondary-bg);
    border: 2px solid var(--border-color);
    padding: 20px 40px;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.2s;
    font-size: 1.2em;
}
.map-button:hover {
    background-color: #4a6279;
    transform: scale(1.05);
}

/* --- Game Layout --- */
#game-wrapper {
    display: flex;
    width: 100%;
    height: 100%;
    padding: 10px;
    box-sizing: border-box;
    gap: 15px;
    justify-content: center;
    align-items: center;
}

#game-container {
    position: relative;
    width: 100%;
    max-width: 80vh; 
    aspect-ratio: 16 / 12;
    flex-shrink: 1;
}

#gameCanvas {
    display: block;
    background-color: var(--grass);
    width: 100%;
    height: 100%;
    border-radius: 7px;
    border: 3px solid var(--text-color);
}

#ui-panel {
    width: 250px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    flex-shrink: 0;
    max-height: 95vh;
    overflow-y: auto;
}

/* --- Game Over Screen --- */
#game-over-screen {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.75);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    border-radius: 7px;
    z-index: 20;
}

#game-over-screen h2 {
    font-size: 3em;
    margin: 0;
}

#game-over-screen p {
    font-size: 1.5em;
    margin: 10px 0 20px 0;
}

#game-over-screen button {
    width: auto;
    padding: 10px 30px;
    margin-top: 10px;
    min-width: 150px;
}

#main-menu-button {
    background-color: var(--secondary-bg);
}

#main-menu-button:hover {
    background-color: #4a6279;
}

/* --- Modal & UI --- */
#in-game-modal { position: absolute; background-color: rgba(44, 62, 80, 0.95); border: 2px solid var(--border-color); border-radius: 10px; padding: 15px; color: var(--text-color); min-width: 200px; z-index: 10; }
#stats, #tower-selection { background-color: var(--secondary-bg); padding: 15px; border-radius: 8px; border: 1px solid var(--border-color); }
.collapsible-header { display: flex; justify-content: space-between; align-items: center; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.collapsible-header h3, .collapsible-header h4 { margin: 0; }
.collapse-icon { font-size: 1.5em; transition: transform 0.3s ease; }
.collapsible.collapsed .collapse-icon { transform: rotate(-90deg); }
.collapsible-content { max-height: 500px; overflow: hidden; transition: max-height 0.3s ease-in-out, padding-top 0.3s ease-in-out; padding-top: 15px; }
.collapsible.collapsed .collapsible-content { max-height: 0; padding-top: 0; }
#stats .collapsible-content p { margin: 8px 0; font-size: 1.1em; display: flex; align-items: center; gap: 10px; }
.tower-option { display: flex; align-items: center; justify-content: space-between; padding: 10px; border: 2px solid transparent; border-radius: 5px; cursor: pointer; transition: background-color 0.2s, border-color 0.2s; }
.tower-option:hover { background-color: #4a6279; }
.tower-option.selected { border-color: var(--blue); background-color: #4a6279; }
.tower-option .emoji { font-size: 2em; }
.tower-option .cost { font-weight: bold; }
button { background-color: var(--blue); color: white; border: none; padding: 12px; border-radius: 5px; cursor: pointer; font-size: 1em; width: 100%; transition: background-color 0.2s; }
button:hover { background-color: #2980b9; }
#start-wave { background-color: var(--green); }
#start-wave:hover { background-color: #27ae60; }
#modal-content h5 { margin: 0 0 10px 0; text-align: center; font-size: 1.2em; }
#modal-content .stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5px 10px; margin-bottom: 15px; }
#modal-content .stats-grid span:nth-child(odd) { font-weight: bold; }
#modal-content .button-group { display: flex; gap: 10px; }
#modal-content .button-group button { flex-grow: 1; }
#modal-content .button-group-vertical { display: flex; flex-direction: column; gap: 8px; }
.modal-btn-confirm { background-color: var(--green); }
.modal-btn-confirm:hover { background-color: #27ae60; }
.modal-btn-sell, .modal-btn-cancel { background-color: var(--red); }
.modal-btn-sell:hover, .modal-btn-cancel:hover { background-color: #c0392b; }
.hidden { display: none !important; }

/* --- Mobile Responsiveness --- */
@media (max-width: 800px) {
    #game-wrapper {
        flex-direction: column;
        height: auto;
        padding: 5px;
        gap: 10px;
    }
    #game-container {
        width: 100%;
        max-width: none;
        order: 1; /* Game on top */
    }
    #ui-panel {
        width: 100%;
        order: 2; /* UI below */
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-around;
        max-height: none;
        overflow-y: visible;
    }
    #stats, #tower-selection {
        flex-grow: 1;
        min-width: 200px;
    }
    #start-wave {
        width: 100%;
        padding: 15px;
        font-size: 1.2em;
    }
}