/* Civilization 1 Style CSS */

/* Menu Bar - Black background, first letter white, rest gray */
#menu-bar {
    display: flex;
    background: #000;
    padding: 2px 4px;
    font-family: 'Courier New', monospace;
    font-weight: bold;
    font-size: 14px;
}

.menu-item {
    color: #888;
    padding: 2px 12px;
    cursor: pointer;
}

.menu-item::first-letter {
    color: #fff;
}

.menu-item:hover {
    color: #aaa;
}

/* Main Game Container */
#game-container {
    display: flex;
    font-family: 'Courier New', monospace;
    background: #000;
}

/* Left Sidebar - Gray pattern background */
#sidebar {
    width: calc(80px * var(--css-scale, 3));
    background: repeating-linear-gradient(
        0deg,
        #a0a0a0 0px, #a0a0a0 1px,
        #808080 1px, #808080 2px
    );
    border-right: 2px solid #000;
    display: flex;
    flex-direction: column;
}

/* Unit Preview - Green border like original */
#unit-preview {
    background: #000;
    border: 3px solid #0a0;
    margin: 4px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60px;
}

#unit-preview-canvas {
    width: calc(48px * var(--css-scale, 3) / 2);
    height: calc(48px * var(--css-scale, 3) / 2);
    image-rendering: pixelated;
    background: transparent;
}

/* Minimap Container */
#minimap-container {
    background: #000;
    border: 2px solid #888;
    margin: 4px;
}

#minimap {
    display: block;
    image-rendering: pixelated;
    cursor: pointer;
}

/* Stats Panel - Gray pattern */
#stats-panel {
    background: transparent;
    color: #000;
    padding: 4px 8px;
    font-size: 11px;
    border-top: 1px solid #888;
}

#gold-display {
    color: #000;
}

#turn-display {
    color: #000;
}

#research-display {
    color: #000;
}

/* Unit Info Panel - Gray pattern */
#unit-info {
    background: transparent;
    color: #000;
    padding: 4px 8px;
    font-size: 10px;
    flex: 1;
    border-top: 1px solid #888;
}

#unit-details {
    margin-bottom: 4px;
}

#tile-terrain {
    color: #000;
    font-size: 10px;
}

/* Unit Actions */
#unit-actions {
    padding: 4px;
}

.action-btn {
    display: block;
    width: 100%;
    padding: 4px 8px;
    font-size: 10px;
    background: #808080;
    color: #000;
    border: 2px outset #aaa;
    cursor: pointer;
    margin: 2px 0;
    font-family: 'Courier New', monospace;
}
.action-btn:hover { background: #909090; }
.action-btn:active { border-style: inset; }

/* Game Area */
#game-area {
    flex: 1;
    display: flex;
    align-items: flex-start;
    background: #000;
}

#main-canvas {
    display: block;
    background: #1a1a2e;
    cursor: default;
    image-rendering: pixelated;
}

/* City Screen Modal - Retro Civ 1 Style */
#city-screen {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    font-family: 'Courier New', monospace;
}

#city-screen.visible {
    display: flex;
    justify-content: center;
    align-items: center;
}

#city-modal {
    background: #5078b8;
    border: 4px solid #000;
    width: 640px;
    color: #000;
    image-rendering: pixelated;
}

/* City Header - Name + Population + Citizens */
#city-header {
    background: #5078b8;
    color: #fff;
    padding: 4px 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 2px solid #000;
    text-shadow: 1px 1px #000;
}

#city-name-display {
    font-weight: bold;
    font-size: 14px;
}

#city-pop-display {
    font-size: 12px;
}

#citizens-display {
    display: flex;
    gap: 0;
    margin-left: 8px;
}

.citizen-sprite {
    width: 32px;
    height: 48px;
    display: inline-block;
}

.citizen-sprite canvas {
    display: block;
    width: 32px;
    height: 48px;
    image-rendering: pixelated;
}

/* City Content - 3 Column Layout */
#city-content {
    display: flex;
    gap: 4px;
    padding: 4px;
    background: #5078b8;
}

#city-left {
    width: 180px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

#city-center {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#city-right {
    width: 160px;
}

/* City Panels */
.city-panel {
    background: #3860a0;
    border: 2px solid #000;
}

.city-panel-title {
    background: #000;
    color: #fff;
    padding: 2px 6px;
    font-weight: bold;
    font-size: 11px;
    text-align: center;
}

/* Resources Display */
#resources-display {
    padding: 4px;
    background: #5078b8;
}

.resource-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    margin-bottom: 2px;
    min-height: 16px;
}

.resource-icon {
    width: 16px;
    height: 16px;
    display: inline-block;
}

.resource-icon canvas {
    display: block;
    width: 16px;
    height: 16px;
    image-rendering: pixelated;
}

/* Food Storage Grid */
#food-storage-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1px;
    padding: 4px;
    background: #203858;
    min-height: 60px;
}

/* City Tabs */
#city-tabs {
    display: flex;
    gap: 2px;
    margin-bottom: 4px;
}

.city-tab {
    padding: 4px 12px;
    background: #3860a0;
    color: #fff;
    border: 2px solid #000;
    cursor: pointer;
    font-family: 'Courier New', monospace;
    font-size: 11px;
    font-weight: bold;
}

.city-tab:hover, .city-tab.active {
    background: #5888c8;
}

/* City Map Canvas */
#city-map-canvas {
    border: 2px solid #000;
    background: #000;
    cursor: pointer;
    image-rendering: pixelated;
}

/* Improvements List */
#improvements-panel {
    height: 100%;
}

#improvements-list {
    padding: 4px;
    max-height: 180px;
    overflow-y: auto;
    font-size: 10px;
}

.improvement-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2px 4px;
    color: #fff;
    background: #3860a0;
    margin-bottom: 1px;
}

.sell-btn {
    background: #c00;
    color: #fff;
    border: 1px solid #000;
    border-radius: 50%;
    width: 14px;
    height: 14px;
    font-size: 9px;
    cursor: pointer;
    line-height: 12px;
    padding: 0;
}

.sell-btn:hover {
    background: #f00;
}

/* Bottom Row: Production + Buttons */
#city-bottom {
    display: flex;
    border-top: 2px solid #000;
    background: #5078b8;
}

#production-area {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
}

#production-display {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#production-icon-canvas {
    border: 2px solid #000;
    background: #3860a0;
    image-rendering: pixelated;
}

#production-name {
    font-size: 10px;
    color: #fff;
    text-align: center;
    text-shadow: 1px 1px #000;
}

#production-shields {
    display: flex;
    flex-wrap: wrap;
    gap: 1px;
    max-width: 200px;
}

/* City Buttons */
#city-buttons {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 4px;
}

.city-btn {
    padding: 4px 12px;
    background: #3860a0;
    color: #fff;
    border: 2px solid #000;
    cursor: pointer;
    font-family: 'Courier New', monospace;
    font-weight: bold;
    font-size: 11px;
}

.city-btn:hover {
    background: #5888c8;
}

/* Production Change Modal */
#change-production {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #5078b8;
    border: 4px solid #000;
    padding: 8px;
    z-index: 1001;
    max-height: 400px;
    max-width: 300px;
    overflow-y: auto;
}

#change-production.visible {
    display: block;
}

#production-options {
    max-height: 320px;
    overflow-y: auto;
}

.production-option {
    padding: 4px 8px;
    background: #3860a0;
    margin: 2px 0;
    cursor: pointer;
    font-size: 11px;
    color: #fff;
    border: 1px solid #000;
}

.production-option:hover {
    background: #5888c8;
}

.production-option.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}