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

:root {
    --cyber-cyan: #00ffff;
    --cyber-magenta: #ff00ff;
    --cyber-yellow: #ffff00;
    --cyber-dark: #0a0a0a;
    --cyber-purple: #1a0033;
}

body {
    font-family: 'Courier New', 'Consolas', monospace;
    background: linear-gradient(135deg, var(--cyber-dark) 0%, var(--cyber-purple) 50%, #001133 100%);
    min-height: 100vh;
    max-height: 100vh;
    color: var(--cyber-cyan);
    overflow: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.15),
        rgba(0, 0, 0, 0.15) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: 1000;
    animation: scanline 8s linear infinite;
}

@keyframes scanline {
    0% { transform: translateY(0); }
    100% { transform: translateY(10px); }
}

.cyberpunk-header {
    text-align: center;
    padding: 10px 20px;
    background: linear-gradient(90deg, transparent, rgba(255, 0, 255, 0.3), rgba(0, 255, 255, 0.3), transparent);
    border-bottom: 3px solid var(--cyber-magenta);
    box-shadow: 0 0 30px var(--cyber-magenta), 0 5px 20px rgba(255, 0, 255, 0.5);
    position: relative;
    z-index: 10;
}

.cyberpunk-header::before,
.cyberpunk-header::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid var(--cyber-cyan);
}

.cyberpunk-header::before {
    top: 5px;
    left: 20px;
    border-right: none;
    border-bottom: none;
}

.cyberpunk-header::after {
    bottom: 5px;
    right: 20px;
    border-left: none;
    border-top: none;
}

.cyberpunk-header h1 {
    font-size: clamp(1.5em, 4vw, 2.5em);
    text-shadow: 0 0 10px var(--cyber-cyan), 0 0 20px var(--cyber-magenta), 0 0 30px var(--cyber-cyan);
    letter-spacing: 8px;
    animation: glitch 3s infinite, neonPulse 2s ease-in-out infinite alternate;
    font-weight: bold;
    text-transform: uppercase;
}

@keyframes glitch {
    0%, 100% { 
        transform: translate(0);
        text-shadow: 0 0 10px var(--cyber-cyan), 0 0 20px var(--cyber-magenta);
    }
    5% { 
        transform: translate(-2px, 1px);
        text-shadow: -2px 0 var(--cyber-magenta), 2px 0 var(--cyber-cyan);
    }
    10% { 
        transform: translate(2px, -1px);
        text-shadow: 2px 0 var(--cyber-magenta), -2px 0 var(--cyber-cyan);
    }
    15% { 
        transform: translate(0);
        text-shadow: 0 0 10px var(--cyber-cyan), 0 0 20px var(--cyber-magenta);
    }
}

@keyframes neonPulse {
    0% { 
        text-shadow: 0 0 5px var(--cyber-cyan), 0 0 10px var(--cyber-magenta), 0 0 15px var(--cyber-cyan);
    }
    100% { 
        text-shadow: 0 0 10px var(--cyber-cyan), 0 0 20px var(--cyber-magenta), 0 0 30px var(--cyber-cyan), 0 0 40px var(--cyber-magenta);
    }
}

.game-container {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 10px;
    padding: 8px;
    height: calc(100vh - 60px);
    max-width: 100vw;
    overflow: hidden;
}

.game-board {
    position: relative;
    border: 3px solid var(--cyber-cyan);
    box-shadow: 0 0 30px var(--cyber-cyan), inset 0 0 50px rgba(0, 255, 255, 0.1), 0 0 60px rgba(0, 255, 255, 0.3);
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 5px;
    min-width: 0;
}

.game-board::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 1px solid var(--cyber-magenta);
    border-radius: 8px;
    pointer-events: none;
    animation: borderGlow 2s ease-in-out infinite alternate;
}

@keyframes borderGlow {
    0% { 
        box-shadow: 0 0 5px var(--cyber-magenta);
        opacity: 0.5;
    }
    100% { 
        box-shadow: 0 0 20px var(--cyber-magenta);
        opacity: 1;
    }
}

canvas {
    display: block;
    background: linear-gradient(180deg, #000011 0%, #001122 100%);
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
}

.right-panel {
    width: 220px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    height: 100%;
}

.sidebar {
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    border: 2px solid var(--cyber-magenta);
    padding: 10px;
    box-shadow: 0 0 20px var(--cyber-magenta), inset 0 0 20px rgba(255, 0, 255, 0.1);
    border-radius: 5px;
    position: relative;
    overflow: hidden;
}

.sidebar-top {
    flex: 0 0 auto;
}

.sidebar-bottom {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--cyber-cyan), var(--cyber-magenta), var(--cyber-yellow), var(--cyber-cyan));
    background-size: 200% 100%;
    animation: colorShift 3s linear infinite;
}

@keyframes colorShift {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.3);
}

.sidebar::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--cyber-cyan), var(--cyber-magenta));
    border-radius: 3px;
}

.stat-panel {
    margin-bottom: 8px;
    padding: 8px;
    border: 1px solid var(--cyber-cyan);
    background: rgba(0, 255, 255, 0.05);
    position: relative;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}

.stat-panel::before {
    content: '';
    position: absolute;
    top: 2px;
    right: 2px;
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--cyber-cyan);
    border-top: 2px solid var(--cyber-cyan);
}

.stat-panel::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 2px;
    width: 10px;
    height: 10px;
    border-left: 2px solid var(--cyber-cyan);
    border-bottom: 2px solid var(--cyber-cyan);
}

.stat-panel h3 {
    color: var(--cyber-magenta);
    margin-bottom: 6px;
    text-shadow: 0 0 5px var(--cyber-magenta), 0 0 10px var(--cyber-magenta);
    font-size: 0.95em;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 4px 0;
    font-size: 0.9em;
    padding: 3px 6px;
    background: rgba(0, 0, 0, 0.3);
    border-left: 2px solid var(--cyber-cyan);
    transition: all 0.3s;
}

.stat-item:hover {
    background: rgba(0, 255, 255, 0.1);
    border-left-color: var(--cyber-magenta);
}

.stat-item span:last-child {
    color: var(--cyber-yellow);
    font-weight: bold;
    text-shadow: 0 0 5px var(--cyber-yellow);
}

.tower-selection {
    margin-top: 8px;
}

.tower-selection h3 {
    color: var(--cyber-magenta);
    margin-bottom: 6px;
    text-shadow: 0 0 5px var(--cyber-magenta);
    font-size: 0.95em;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tower-btn {
    width: 100%;
    padding: 8px;
    margin: 5px 0;
    background: linear-gradient(135deg, #1a0033 0%, #001122 100%);
    border: 2px solid var(--cyber-cyan);
    color: var(--cyber-cyan);
    font-family: 'Courier New', monospace;
    font-size: 0.85em;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}

.tower-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.tower-btn:hover::before {
    left: 100%;
}

.tower-btn small {
    display: block;
    font-size: 0.75em;
    opacity: 0.8;
    margin-top: 3px;
}

.tower-btn:hover {
    background: linear-gradient(135deg, var(--cyber-magenta) 0%, var(--cyber-cyan) 100%);
    color: #000;
    box-shadow: 0 0 25px var(--cyber-magenta), 0 0 40px var(--cyber-cyan);
    transform: scale(1.02);
    border-color: #fff;
}

.tower-btn.selected {
    background: linear-gradient(135deg, var(--cyber-magenta) 0%, var(--cyber-cyan) 100%);
    color: #000;
    box-shadow: 0 0 25px var(--cyber-magenta), 0 0 40px var(--cyber-cyan);
    border-color: #fff;
    animation: selectedPulse 1s ease-in-out infinite;
}

@keyframes selectedPulse {
    0%, 100% { box-shadow: 0 0 25px var(--cyber-magenta), 0 0 40px var(--cyber-cyan); }
    50% { box-shadow: 0 0 35px var(--cyber-magenta), 0 0 50px var(--cyber-cyan), 0 0 60px var(--cyber-yellow); }
}

.tower-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    filter: grayscale(50%);
}

.tower-btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

.controls {
    text-align: center;
    margin-top: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    justify-content: center;
}

.control-btn {
    padding: 8px 12px;
    margin: 2px;
    background: linear-gradient(135deg, var(--cyber-magenta) 0%, var(--cyber-cyan) 100%);
    border: none;
    color: #000;
    font-family: 'Courier New', monospace;
    font-size: 0.8em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    clip-path: polygon(5px 0, 100% 0, 100% calc(100% - 5px), calc(100% - 5px) 100%, 0 100%, 0 5px);
}

.control-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s, height 0.4s;
}

.control-btn:active::after {
    width: 200px;
    height: 200px;
}

.control-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px var(--cyber-magenta), 0 0 50px var(--cyber-cyan);
}

.control-btn:active {
    transform: scale(0.98);
}

.instructions {
    margin-top: 8px;
    padding: 8px;
    border: 1px solid var(--cyber-magenta);
    background: rgba(255, 0, 255, 0.05);
    font-size: 0.78em;
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.instructions h4 {
    color: var(--cyber-magenta);
    margin-bottom: 5px;
    text-shadow: 0 0 5px var(--cyber-magenta);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.instructions p {
    margin: 3px 0;
    padding-left: 12px;
    position: relative;
    opacity: 0.9;
}

.instructions p::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--cyber-cyan);
}

@media (max-width: 1100px) {
    .game-container {
        flex-direction: column;
        align-items: center;
        overflow-y: auto;
        gap: 8px;
    }
    
    .right-panel {
        width: 100%;
        max-width: 600px;
        flex-direction: row;
        height: auto;
    }
    
    .sidebar-top,
    .sidebar-bottom {
        flex: 1;
    }
    
    canvas {
        max-height: 50vh;
    }
}

@media (max-width: 700px) {
    .right-panel {
        flex-direction: column;
    }
}

@media (max-height: 800px) {
    .cyberpunk-header {
        padding: 5px 15px;
    }
    
    .cyberpunk-header h1 {
        font-size: clamp(1.2em, 3vw, 1.8em);
    }
    
    .game-container {
        padding: 5px;
        height: calc(100vh - 50px);
    }
    
    .right-panel {
        width: 200px;
    }
    
    canvas {
        max-height: calc(100vh - 120px);
    }
}