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

body {
    font-family: monospace;
    background-color: #000;
    color: #fff;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
}

#ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.top-bar {
    display: flex;
    justify-content: flex-start;
    gap: 20px;
}

.stat-box {
    border: 1px solid #fff;
    padding: 10px 15px;
    background: #000;
    font-size: 1.2rem;
}

.hideable.hidden-ui {
    display: none !important;
}

#staff-list {
    align-self: flex-start;
}

#stats-tab {
    align-self: flex-start;
    color: #aaa;
    font-size: 1rem;
}

#restart-hint {
    align-self: flex-end;
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 1.2rem;
    color: #888;
}

.modal {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    pointer-events: auto;
}

.modal.hidden {
    display: none;
}

.modal-content {
    border: 2px solid #fff;
    background: #000;
    padding: 40px;
    text-align: center;
    max-width: 900px;
    width: 90%;
    pointer-events: auto;
}

h1.game-title {
    font-size: 3rem;
    margin-bottom: 20px;
    text-transform: uppercase;
}

h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    text-transform: uppercase;
}

p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.primary-btn {
    background: #000;
    color: #fff;
    border: 2px solid #fff;
    padding: 15px 40px;
    font-size: 1.5rem;
    font-family: inherit;
    cursor: pointer;
    text-transform: uppercase;
}

.primary-btn:hover {
    background: #fff;
    color: #000;
}

.options-container {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.upgrade-card {
    background: #000;
    border: 2px solid #fff;
    padding: 20px;
    width: 200px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.upgrade-card:hover {
    background: #fff;
    color: #000;
}

.upgrade-card:hover .upgrade-desc {
    color: #000;
}

.upgrade-icon {
    font-size: 3rem;
}

.upgrade-title {
    font-weight: bold;
    font-size: 1.2rem;
    text-transform: uppercase;
}

.upgrade-desc {
    font-size: 1rem;
    color: #ccc;
}