/* ===================================
   Game Grid & Viewport Styles
   =================================== */

.game-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.zoom-controls {
    display: flex;
    gap: var(--spacing-sm);
}

.control-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.control-btn:hover {
    background: var(--bg-elevated);
    border-color: var(--border-color-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.control-btn:active {
    transform: translateY(0);
}

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

.land-info span {
    font-weight: 700;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.expand-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-weight: 700;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.expand-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.expand-btn:active {
    transform: translateY(0);
}

/* Game Viewport */
.game-viewport {
    position: relative;
    width: 100%;
    height: calc(100vh - 240px);
    overflow: auto;
    background:
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px),
        linear-gradient(0deg, var(--border-color) 1px, transparent 1px);
    background-size: 50px 50px;
    background-position: center;
    cursor: grab;
}

.game-viewport:active {
    cursor: grabbing;
}

.game-grid {
    position: relative;
    display: grid;
    gap: 2px;
    padding: var(--spacing-xl);
    margin: auto;
    transition: transform var(--transition-base);
    transform-origin: center;
}

/* Grid Tiles */
.grid-tile {
    position: relative;
    aspect-ratio: 1;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    overflow: hidden;
}

.grid-tile::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, hsla(260, 85%, 58%, 0.05) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.grid-tile:hover::before {
    opacity: 1;
}

.grid-tile:hover {
    border-color: var(--color-primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    z-index: 10;
}

.grid-tile.locked {
    background: var(--bg-secondary);
    border-style: dashed;
    cursor: not-allowed;
    opacity: 0.5;
}

.grid-tile.locked:hover {
    transform: none;
    border-color: var(--border-color);
    box-shadow: none;
}

.grid-tile.has-building {
    background: var(--bg-elevated);
    border-color: var(--color-primary);
}

.grid-tile.has-building:hover {
    border-color: var(--color-primary-light);
}

/* Building on Tile */
.tile-building {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
}

.building-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    animation: buildingFloat 3s ease-in-out infinite;
}

@keyframes buildingFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.building-name {
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.2;
}

.building-level-badge {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    padding: 2px 6px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    font-size: 0.625rem;
    font-weight: 700;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.production-indicator {
    position: absolute;
    bottom: var(--spacing-xs);
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 4px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.production-fill {
    height: 100%;
    background: var(--gradient-gold);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
    box-shadow: 0 0 8px var(--color-accent);
}

/* ===================================
   Building Menu
   =================================== */

.building-menu {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-height: 70vh;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border-color);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    animation: slideUpMenu var(--transition-base);
    overflow: hidden;
}

@keyframes slideUpMenu {
    from {
        transform: translateY(100%);
    }

    to {
        transform: translateY(0);
    }
}

.menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.menu-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.close-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.close-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    transform: rotate(90deg);
}

.menu-categories {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    overflow-x: auto;
}

.category-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    transition: all var(--transition-base);
}

.category-btn:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
}

.category-btn.active {
    background: var(--gradient-primary);
    border-color: var(--color-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.menu-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    max-height: 50vh;
    overflow-y: auto;
}

.menu-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
}

.menu-item:hover {
    background: var(--bg-elevated);
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.menu-item-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.menu-item-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--spacing-xs);
}

.menu-item-cost {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 700;
}

.menu-item-cost .icon {
    font-size: 1rem;
}

/* ===================================
   Building Info Panel
   =================================== */

.building-info-panel {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-height: 60vh;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border-color);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    animation: slideUpMenu var(--transition-base);
    overflow: hidden;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--gradient-dark);
    border-bottom: 1px solid var(--border-color);
}

.panel-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.panel-content {
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: calc(60vh - 80px);
}

.building-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-item {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
}

.production-progress {
    margin-bottom: var(--spacing-lg);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: var(--gradient-gold);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
    box-shadow: 0 0 10px var(--color-accent);
}

.progress-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
}

.panel-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-sm);
}

.action-btn {
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.action-btn.collect {
    background: var(--gradient-gold);
    color: var(--bg-primary);
    box-shadow: var(--shadow-sm);
}

.action-btn.collect:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), 0 0 20px hsla(45, 100%, 51%, 0.4);
}

.action-btn.assign {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.action-btn.assign:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.action-btn.upgrade {
    background: var(--gradient-secondary);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.action-btn.upgrade:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), 0 0 20px hsla(340, 82%, 52%, 0.4);
}

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

.action-btn:disabled:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
    .game-viewport {
        height: calc(100vh - 220px);
    }

    .building-icon {
        font-size: 2rem;
    }

    .menu-items {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
}

@media (max-width: 480px) {
    .game-controls {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .building-icon {
        font-size: 1.5rem;
    }

    .menu-items {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
}