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

:root {
    /* DOS SimCity color palette */
    --bg-dark: #000080;
    --bg-panel: #C0C0C0;
    --bg-button: #808080;
    --bg-button-hover: #A0A0A0;
    --accent: #000080;
    --accent-light: #0000AA;
    --gold: #FFAA00;
    --red: #FF0000;
    --green: #00AA00;
    --text: #000000;
    --text-light: #FFFFFF;
    --text-dim: #404040;
    --border-light: #FFFFFF;
    --border-dark: #404040;
}

html, body {
    height: 100%;
    overflow: hidden;
    background: var(--bg-dark);
    font-family: 'Silkscreen', 'Courier New', monospace;
    color: var(--text);
    -webkit-font-smoothing: none;
    -moz-osx-font-smoothing: unset;
}

#game-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

#hud-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 8px;
    background: var(--bg-panel);
    border-bottom: 2px solid var(--border-dark);
    border-top: 2px solid var(--border-light);
    z-index: 10;
}

#stats {
    display: flex;
    gap: 12px;
}

#hud-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

#zoom-controls {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 0 6px;
    border-right: 1px solid var(--border-dark);
}

#zoom-level {
    font-size: 9px;
    color: var(--text);
    min-width: 32px;
    text-align: center;
}

.zoom-btn {
    width: 20px;
    height: 20px;
    border: 2px outset var(--bg-panel);
    background: var(--bg-panel);
    color: var(--text);
    font-family: 'Silkscreen', monospace;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.zoom-btn:hover {
    background: var(--bg-button-hover);
}

.zoom-btn:active {
    border-style: inset;
}

.menu-btn {
    width: 28px;
    height: 24px;
    border: 2px outset var(--bg-panel);
    background: var(--bg-panel);
    color: var(--accent);
    font-family: 'Silkscreen', monospace;
    font-size: 12px;
    cursor: pointer;
    margin-left: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2px;
}

.menu-btn .menu-icon {
    width: 16px;
    height: 16px;
    image-rendering: pixelated;
}

.menu-btn:hover {
    background: var(--bg-button-hover);
}

.menu-btn:active {
    border-style: inset;
}

#game-menu {
    position: absolute;
    top: 40px;
    right: 8px;
    background: var(--bg-panel);
    border: 2px outset var(--bg-panel);
    z-index: 100;
    min-width: 160px;
}

#game-menu.hidden {
    display: none;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    padding: 8px 12px;
    background: transparent;
    border: none;
    color: var(--text);
    font-family: 'Silkscreen', monospace;
    font-size: 9px;
    text-align: left;
    cursor: pointer;
}

.menu-item-icon {
    width: 16px;
    height: 16px;
    image-rendering: pixelated;
}

.menu-item:hover {
    background: var(--accent);
    color: var(--text-light);
}

.menu-divider {
    height: 2px;
    background: var(--border-dark);
    margin: 2px 4px;
}

.stats-panel {
    position: absolute;
    top: 50px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-panel);
    border: 2px outset var(--bg-panel);
    z-index: 90;
    min-width: 240px;
    max-width: 300px;
}

#tile-panel {
    border-color: var(--gold);
}

#tile-panel .panel-header {
    background: var(--gold);
    color: var(--text);
}

.tile-type-icon {
    font-size: 24px;
    text-align: center;
    padding: 8px 0;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border-dark);
}

.tile-type-name {
    font-size: 10px;
    text-align: center;
    color: var(--accent);
    letter-spacing: 1px;
    margin-bottom: 8px;
    padding: 4px;
    background: var(--border-light);
    border: 1px inset var(--bg-panel);
}

.stat-row.good span:last-child {
    color: var(--green);
}

.stat-row.bad span:last-child {
    color: var(--red);
}

.stat-row.warning span:last-child {
    color: var(--gold);
}

.stats-panel.hidden {
    display: none;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 8px;
    background: var(--accent);
    color: var(--text-light);
    font-size: 10px;
    letter-spacing: 1px;
}

.panel-close {
    background: var(--bg-panel);
    border: 2px outset var(--bg-panel);
    color: var(--text);
    font-size: 12px;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}

.panel-close:hover {
    background: var(--red);
    color: var(--text-light);
}

.panel-content {
    padding: 8px;
    max-height: 350px;
    overflow-y: auto;
    background: var(--text-light);
    border: 2px inset var(--bg-panel);
    margin: 4px;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    padding: 3px 0;
    font-size: 9px;
    color: var(--text);
    border-bottom: 1px dotted var(--border-dark);
}

.stat-row:last-child {
    border-bottom: none;
}

.stat-row.total {
    padding: 6px 0;
    margin-top: 4px;
    border-top: 2px solid var(--border-dark);
    font-size: 10px;
    font-weight: bold;
}

.stat-row span:last-child {
    color: var(--text);
}

.stat-row .income {
    color: var(--green);
}

.stat-row .expense {
    color: var(--red);
}

.stat-section {
    font-size: 8px;
    color: var(--accent);
    letter-spacing: 1px;
    padding: 6px 0 3px 0;
    margin-top: 6px;
    border-top: 1px solid var(--border-dark);
    font-weight: bold;
}

.stat-section:first-child {
    margin-top: 0;
    border-top: none;
    padding-top: 0;
}

.stat {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    background: var(--text-light);
    border: 2px inset var(--bg-panel);
}

.stat::before {
    font-size: 10px;
    margin-right: 2px;
}

#money-stat::before {
    content: '$';
    color: var(--gold);
}

#pop-stat::before {
    content: '☺';
    color: var(--green);
}

#happy-stat::before {
    content: '♥';
    color: var(--red);
}

.stat-value {
    font-size: 10px;
    letter-spacing: 1px;
    min-width: 36px;
}

#money-stat .stat-value { color: var(--gold); }
#pop-stat .stat-value { color: var(--green); }
#happy-stat .stat-value { color: var(--red); }

#time-controls {
    display: flex;
    gap: 2px;
}

.time-btn {
    width: 28px;
    height: 22px;
    border: 2px outset var(--bg-panel);
    background: var(--bg-panel);
    color: var(--text);
    font-family: 'Silkscreen', monospace;
    font-size: 8px;
    cursor: pointer;
}

.time-btn:hover {
    background: var(--bg-button-hover);
}

.time-btn:active {
    border-style: inset;
}

.time-btn.active {
    background: var(--accent);
    color: var(--text-light);
    border-style: inset;
}

#canvas {
    flex: 1;
    width: 100%;
    cursor: crosshair;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    background: #8B4513;
}

#toolbar {
    display: flex;
    justify-content: center;
    gap: 4px;
    padding: 6px;
    background: var(--bg-panel);
    border-top: 2px solid var(--border-light);
    border-bottom: 2px solid var(--border-dark);
}

.tool-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: 2px outset var(--bg-panel);
    background: var(--bg-panel);
    cursor: pointer;
    position: relative;
    padding: 4px;
}

.tool-btn img {
    width: 24px;
    height: 24px;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

.tool-btn:hover {
    background: var(--bg-button-hover);
}

.tool-btn:active {
    border-style: inset;
}

.tool-btn.selected {
    border-style: inset;
    background: var(--accent);
}

.tool-btn.selected img {
    filter: brightness(2);
}

.tool-btn.demolish.selected {
    background: var(--red);
}

.tool-cost {
    font-size: 7px;
    color: var(--text);
    margin-top: 2px;
}

.tool-btn.selected .tool-cost {
    color: var(--text-light);
}

#toast {
    position: absolute;
    bottom: 70px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 12px;
    background: var(--bg-panel);
    border: 2px outset var(--bg-panel);
    color: var(--text);
    font-size: 10px;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 30;
    pointer-events: none;
}

#toast.show {
    opacity: 1;
}

#tutorial {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 128, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

#tutorial.hidden {
    display: none;
}

.tutorial-content {
    background: var(--bg-panel);
    padding: 16px 24px;
    border: 2px outset var(--bg-panel);
    text-align: center;
    max-width: 260px;
}

.tutorial-content h2 {
    font-size: 14px;
    color: var(--accent);
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.tutorial-items {
    text-align: left;
    margin-bottom: 16px;
    background: var(--text-light);
    border: 2px inset var(--bg-panel);
    padding: 8px;
}

.tutorial-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
    font-size: 9px;
    color: var(--text);
    border-bottom: 1px dotted var(--border-dark);
}

.tutorial-item:last-child {
    border-bottom: none;
}

.tutorial-icon {
    font-size: 12px;
    width: 28px;
    text-align: center;
}

.tutorial-img {
    width: 24px;
    height: 24px;
    image-rendering: pixelated;
}

#tutorial-close {
    font-family: 'Silkscreen', monospace;
    font-size: 10px;
    padding: 8px 20px;
    background: var(--bg-panel);
    color: var(--text);
    border: 2px outset var(--bg-panel);
    cursor: pointer;
    letter-spacing: 2px;
}

#tutorial-close:hover {
    background: var(--bg-button-hover);
}

#tutorial-close:active {
    border-style: inset;
}

#footer {
    position: fixed;
    bottom: 70px;
    right: 8px;
    z-index: 50;
}

#footer a {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text);
    text-decoration: none;
    font-size: 9px;
    font-family: 'Silkscreen', monospace;
    padding: 4px 8px;
    background: var(--bg-panel);
    border: 2px outset var(--bg-panel);
    letter-spacing: 1px;
}

#footer a::before {
    content: '🍓';
    font-size: 12px;
}

#footer a:hover {
    background: var(--bg-button-hover);
}

#footer a:active {
    border-style: inset;
}

/* Build indicator */
#build-indicator {
    position: absolute;
    bottom: 70px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-panel);
    border: 2px outset var(--bg-panel);
    padding: 6px 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 20;
    font-size: 9px;
    color: var(--text);
    letter-spacing: 1px;
}

#build-indicator.hidden {
    display: none;
}

#build-indicator img {
    width: 20px;
    height: 20px;
    image-rendering: pixelated;
}

#build-indicator.demolish {
    background: var(--red);
    color: var(--text-light);
}

@media (max-width: 500px) {
    .stat {
        padding: 2px 4px;
    }
    
    .stat-value {
        font-size: 9px;
        min-width: 28px;
    }
    
    .tool-btn {
        width: 40px;
        height: 40px;
    }
    
    .tool-btn img {
        width: 20px;
        height: 20px;
    }
    
    .tool-cost {
        font-size: 6px;
    }
    
    #zoom-controls {
        display: none;
    }
    
    .stats-panel {
        min-width: 220px;
        left: 8px;
        right: 8px;
        transform: none;
    }
    
    #game-menu {
        right: 4px;
        min-width: 140px;
    }
}