/* CSS Reset and Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Colors */
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --text-primary: #eaeaea;
    --text-secondary: #a0a0a0;
    --text-muted: #666;
    --accent-primary: #e94560;
    --accent-secondary: #0f3460;
    --accent-gold: #f0a500;
    --accent-green: #00d26a;
    --accent-blue: #00a8ff;
    --accent-purple: #9b59b6;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.4);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

html, body {
    height: 100%;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
}

.loading-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.loading-subtitle {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: var(--spacing-xl);
}

.loading-bar-container {
    width: 300px;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.loading-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-primary));
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 4px;
}

.loading-text {
    color: var(--text-muted);
    font-size: 14px;
}

/* Game Container */
.game-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.game-container:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

/* HUD */
.hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-bottom: 2px solid var(--bg-tertiary);
    z-index: 100;
}

.hud-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.resource-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.resource-icon {
    font-size: 24px;
}

.resource-value {
    font-size: 20px;
    font-weight: bold;
    color: var(--accent-gold);
}

.wave-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.wave-label {
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
}

.wave-value {
    font-size: 28px;
    font-weight: bold;
    color: var(--accent-gold);
}

.wave-separator {
    color: var(--text-muted);
}

.wave-max {
    color: var(--text-muted);
    font-size: 20px;
}

.wave-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-green), #00b359);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.wave-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 210, 106, 0.4);
}

.wave-btn:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
}

.wave-btn.active {
    background: linear-gradient(135deg, var(--accent-primary), #c73e54);
}

.base-health-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.health-icon {
    font-size: 32px;
}

.health-bar-container {
    width: 200px;
    position: relative;
}

.health-bar {
    width: 100%;
    height: 24px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid var(--bg-tertiary);
}

.health-fill {
    height: 100%;
    background: linear-gradient(90deg, #e74c3c, #f39c12, #27ae60);
    width: 100%;
    transition: width 0.3s ease;
}

.health-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

/* Main Game Area */
.game-main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebars */
.sidebar {
    width: 200px;
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    overflow-y: auto;
}

.sidebar-left {
    border-right: 2px solid var(--bg-tertiary);
}

.sidebar-right {
    border-left: 2px solid var(--bg-tertiary);
}

.panel-section {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.panel-title {
    font-size: 14px;
    font-weight: bold;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.build-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.build-grid.single {
    grid-template-columns: 1fr;
}

.build-card {
    background: var(--bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    cursor: grab;
    transition: all var(--transition-fast);
    text-align: center;
    user-select: none;
}

.build-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.build-card.dragging {
    opacity: 0.5;
    cursor: grabbing;
    transform: scale(0.95);
}

.build-card.selected {
    border-color: var(--accent-gold);
    background: var(--bg-tertiary);
}

.build-card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.build-card.disabled:hover {
    border-color: transparent;
    transform: none;
}

.build-icon {
    font-size: 28px;
    margin-bottom: var(--spacing-xs);
}

.build-name {
    font-size: 11px;
    font-weight: bold;
    color: var(--text-primary);
}

.build-cost {
    font-size: 10px;
    color: var(--accent-gold);
}

/* Canvas Wrapper */
.canvas-wrapper {
    flex: 1;
    position: relative;
    background: #2d4a3e;
}

#gameCanvas {
    width: 100%;
    height: 100%;
    display: block;
}

.canvas-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.canvas-overlay:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

.pause-menu {
    text-align: center;
}

.pause-menu h2 {
    font-size: 48px;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
}

.menu-btn {
    display: block;
    width: 200px;
    padding: var(--spacing-md);
    margin: var(--spacing-md) auto;
    background: var(--accent-secondary);
    border: 2px solid var(--accent-blue);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.menu-btn:hover {
    background: var(--accent-blue);
    transform: scale(1.05);
}

.wave-announcement {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 64px;
    font-weight: bold;
    color: var(--accent-gold);
    text-shadow: 0 0 20px rgba(240, 165, 0, 0.8);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.wave-announcement.show {
    opacity: 1;
    animation: waveAnnounce 2s ease-out forwards;
}

@keyframes waveAnnounce {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.5);
    }
    20% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.2);
    }
    80% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* Wave Loot Popup */
.wave-loot-popup {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 3px solid var(--accent-gold);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    min-width: 320px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 50;
    box-shadow: 0 0 40px rgba(240, 165, 0, 0.3);
}

.wave-loot-popup.show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.loot-content {
    text-align: center;
}

.loot-title {
    font-size: 28px;
    font-weight: bold;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 0 10px rgba(240, 165, 0, 0.5);
}

.loot-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.loot-stat {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
}

.loot-icon {
    font-size: 24px;
}

.loot-label {
    flex: 1;
    text-align: left;
    padding-left: var(--spacing-md);
    font-size: 14px;
    color: var(--text-secondary);
}

.loot-value {
    font-size: 18px;
    font-weight: bold;
    color: var(--accent-gold);
}

.loot-value.bonus {
    color: var(--accent-green);
}

.loot-total {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, rgba(240, 165, 0, 0.2) 0%, rgba(240, 165, 0, 0.1) 100%);
    border: 2px solid var(--accent-gold);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-sm);
}

.loot-total .loot-label {
    font-size: 16px;
    font-weight: bold;
    color: var(--text-primary);
}

.loot-total .loot-value.total {
    font-size: 24px;
    color: var(--accent-gold);
}

.loot-continue-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-gold), #d49200);
    border: none;
    border-radius: var(--radius-md);
    color: var(--bg-primary);
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.loot-continue-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(240, 165, 0, 0.4);
}

/* Info Panel */
.info-panel {
    min-height: 150px;
}

.selection-info {
    font-size: 12px;
}

.info-placeholder {
    color: var(--text-muted);
    text-align: center;
    padding: var(--spacing-md);
}

.selection-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--bg-secondary);
}

.selection-icon {
    font-size: 24px;
}

.selection-name {
    font-weight: bold;
    font-size: 14px;
}

.selection-level {
    font-size: 10px;
    color: var(--accent-gold);
    margin-left: auto;
}

.selection-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.selection-stat {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
}

.selection-stat-label {
    color: var(--text-secondary);
}

.selection-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.action-row {
    display: flex;
    gap: var(--spacing-sm);
}

.action-row .action-btn {
    flex: 1;
    padding: var(--spacing-sm);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.action-btn.upgrade {
    background: linear-gradient(135deg, var(--accent-green), #00b359);
    color: white;
}

.action-btn.upgrade:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 210, 106, 0.4);
}

.action-btn.move {
    background: linear-gradient(135deg, var(--accent-blue), #0088cc);
    color: white;
}

.action-btn.move:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 168, 255, 0.4);
}

.action-btn.sell {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
}

.action-btn.sell:hover:not(:disabled) {
    transform: translateY(-1px);
}

.action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Stats */
.stats-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
}

.stat-label {
    font-size: 11px;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 14px;
    font-weight: bold;
    color: var(--accent-gold);
}

/* Controls */
.controls-section {
    flex: 1;
}

.controls-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.control-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 11px;
    color: var(--text-secondary);
}

kbd {
    padding: 2px 6px;
    background: var(--bg-secondary);
    border: 1px solid var(--bg-primary);
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: 10px;
}

/* Bottom HUD */
.bottom-hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(0deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-top: 2px solid var(--bg-tertiary);
}

.game-speed {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.speed-label {
    font-size: 12px;
    color: var(--text-secondary);
}

.speed-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.speed-btn:hover, .speed-btn.active {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

.game-tips {
    flex: 1;
    text-align: center;
}

#gameTip {
    font-size: 13px;
    color: var(--text-muted);
}

.game-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.action-btn {
    width: 44px;
    height: 44px;
    background: var(--bg-tertiary);
    border: 2px solid var(--bg-primary);
    border-radius: var(--radius-md);
    font-size: 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.action-btn:hover {
    background: var(--accent-secondary);
    border-color: var(--accent-blue);
}

/* Overlay Screens */
.overlay-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 500;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.overlay-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.start-content, .end-content {
    text-align: center;
    max-width: 600px;
    padding: var(--spacing-xl);
}

.game-logo {
    font-size: 80px;
    margin-bottom: var(--spacing-md);
}

.game-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.game-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.features-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    font-size: 14px;
}

.feature-icon {
    font-size: 24px;
}

.start-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.start-stat {
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.stat-num {
    display: block;
    font-size: 32px;
    font-weight: bold;
    color: var(--accent-gold);
}

.stat-desc {
    font-size: 12px;
    color: var(--text-secondary);
}

.start-btn {
    padding: var(--spacing-lg) var(--spacing-xl) * 2;
    font-size: 20px;
    font-weight: bold;
    background: linear-gradient(135deg, var(--accent-gold), #d49200);
    border: none;
    border-radius: var(--radius-lg);
    color: var(--bg-primary);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.start-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(240, 165, 0, 0.4);
}

.end-content.victory .end-icon {
    font-size: 80px;
    margin-bottom: var(--spacing-md);
}

.end-content.defeat .end-icon {
    font-size: 80px;
    margin-bottom: var(--spacing-md);
}

.end-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
}

.end-content.victory .end-title {
    color: var(--accent-green);
}

.end-content.defeat .end-title {
    color: var(--accent-primary);
}

.end-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.end-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.end-stat {
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.end-stat-value {
    display: block;
    font-size: 36px;
    font-weight: bold;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-xs);
}

.end-stat-label {
    font-size: 12px;
    color: var(--text-secondary);
}

.end-btn {
    padding: var(--spacing-lg) var(--spacing-xl) * 2;
    font-size: 18px;
    font-weight: bold;
    background: linear-gradient(135deg, var(--accent-blue), #0088cc);
    border: none;
    border-radius: var(--radius-lg);
    color: white;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.end-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(0, 168, 255, 0.4);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .sidebar {
        width: 160px;
    }
    
    .build-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .sidebar {
        display: none;
    }
    
    .game-title {
        font-size: 32px;
    }
    
    .start-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-list {
        grid-template-columns: 1fr;
    }
}

/* Inventory Section */
.inventory-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 200px;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

#inventoryCount {
    font-size: 11px;
    color: var(--accent-gold);
    margin-left: auto;
}

.inventory-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
    flex: 1;
}

.inventory-slot {
    aspect-ratio: 1;
    background: var(--bg-primary);
    border: 2px solid var(--bg-secondary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.inventory-slot:hover {
    border-color: var(--accent-blue);
    transform: scale(1.05);
}

.inventory-slot.empty {
    opacity: 0.3;
    cursor: default;
}

.inventory-slot.empty:hover {
    border-color: var(--bg-secondary);
    transform: none;
}

.inventory-slot.dragging {
    opacity: 0.5;
    border-color: var(--accent-primary);
    transform: scale(0.95);
}

.inventory-item {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    transition: transform var(--transition-fast);
}

.inventory-item:active {
    cursor: grabbing;
}

.inventory-item:hover {
    transform: scale(1.1);
}

.inventory-slot.selected {
    border-color: var(--accent-gold);
    box-shadow: 0 0 8px rgba(240, 165, 0, 0.4);
}

.inventory-slot .item-icon {
    font-size: 20px;
}

.inventory-slot .item-quantity {
    position: absolute;
    bottom: 2px;
    right: 2px;
    font-size: 9px;
    font-weight: bold;
    color: var(--accent-gold);
    background: rgba(0, 0, 0, 0.7);
    padding: 1px 3px;
    border-radius: 2px;
}

.inventory-slot .item-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-primary);
    border: 2px solid var(--accent-gold);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 100;
    margin-bottom: 8px;
}

.inventory-slot:hover .item-tooltip {
    opacity: 1;
    visibility: visible;
}

.item-tooltip-name {
    font-weight: bold;
    font-size: 12px;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.item-tooltip-desc {
    font-size: 10px;
    color: var(--text-secondary);
}

/* Loot Items Section */
.loot-items-section {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.loot-items-title {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    text-align: left;
}

.loot-items-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.loot-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--bg-tertiary);
    border: 2px solid var(--accent-gold);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 11px;
}

.loot-item-icon {
    font-size: 16px;
}

.loot-item-name {
    color: var(--text-primary);
}

.loot-item-quantity {
    color: var(--accent-gold);
    font-weight: bold;
}

/* Minimap */
.minimap {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 180px;
    height: 90px;
    background: var(--bg-primary);
    border: 2px solid var(--accent-gold);
    border-radius: var(--radius-md);
    overflow: hidden;
    opacity: 0.9;
    z-index: 10;
}

#minimapCanvas {
    width: 100%;
    height: 100%;
}

.minimap-camera {
    position: absolute;
    border: 2px solid var(--accent-blue);
    background: rgba(0, 168, 255, 0.2);
    pointer-events: none;
}

/* Map Panning Cursor */
#gameCanvas.panning {
    cursor: grab;
}

#gameCanvas.panning:active {
    cursor: grabbing;
}

/* Canvas Panning Styles */
.canvas-wrapper.panning #gameCanvas {
    cursor: grabbing;
}

/* Grid Background for Movable Map */
.grid-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.3;
}

/* World Boundary Indicator */
.world-boundary {
    position: absolute;
    border: 4px dashed rgba(240, 165, 0, 0.5);
    pointer-events: none;
}

/* Zoom Controls */
.zoom-controls {
    position: absolute;
    bottom: var(--spacing-md);
    right: calc(var(--spacing-md) + 200px);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    z-index: 10;
}

.zoom-btn {
    width: 32px;
    height: 32px;
    background: var(--bg-tertiary);
    border: 2px solid var(--accent-gold);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.zoom-btn:hover {
    background: var(--accent-gold);
    color: var(--bg-primary);
}

/* Inventory Item Dragging */
.inventory-slot.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

/* Scrollbar Styling */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* Use Item Button in Info Panel */
.use-item-btn {
    background: linear-gradient(135deg, var(--accent-purple), #8e44ad);
    color: white;
    margin-top: var(--spacing-sm);
}

.use-item-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(155, 89, 182, 0.4);
}