:root {
    --bg-dark: #050510;
    --neon-blue: #00f3ff;
    --neon-pink: #ff00ea;
    --neon-yellow: #fcee0a;
    --neon-red: #ff3333;
    --panel-bg: rgba(5, 5, 20, 0.75);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
}

body {
    font-family: 'Rajdhani', sans-serif;
    background-color: var(--bg-dark);
    color: white;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
}

.hud {
    width: 100%;
    max-width: 1000px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    z-index: 10;
    background: linear-gradient(180deg, rgba(0,243,255,0.08) 0%, transparent 100%);
    border-bottom: 2px solid rgba(0, 243, 255, 0.4);
    box-shadow: 0 4px 20px rgba(0, 243, 255, 0.15);
}

.hud-item {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.hud-item.center {
    align-items: center;
}

.hud-item.right {
    align-items: flex-end;
}

.label {
    font-size: 1rem;
    color: var(--neon-blue);
    letter-spacing: 3px;
    font-weight: 700;
}

.value {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    text-shadow: 0 0 15px var(--neon-blue);
    transition: transform 0.1s ease-out;
    display: inline-block;
}

.title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    font-weight: 900;
    color: transparent;
    -webkit-text-stroke: 1.5px var(--neon-pink);
    text-shadow: 0 0 20px rgba(255, 0, 234, 0.6);
    letter-spacing: 5px;
}

.game-wrapper {
    position: relative;
    margin-top: 1.5rem;
    box-shadow: 0 0 50px rgba(0, 243, 255, 0.2), inset 0 0 30px rgba(0, 243, 255, 0.15);
    border: 1px solid rgba(0, 243, 255, 0.4);
    border-radius: 12px;
    overflow: hidden;
    background: radial-gradient(circle at center, #111122 0%, #000000 100%);
}

canvas {
    display: block;
}

.ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: none;
}

.panel {
    background: var(--panel-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 243, 255, 0.6);
    padding: 3.5rem;
    border-radius: 16px;
    text-align: center;
    pointer-events: auto;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.9), inset 0 0 25px rgba(0, 243, 255, 0.25);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.panel.hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.85);
}

.panel h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    color: var(--neon-blue);
    text-shadow: 0 0 25px var(--neon-blue), 0 0 5px white;
    letter-spacing: 2px;
}

.panel h1.danger {
    color: var(--neon-red);
    text-shadow: 0 0 25px var(--neon-red), 0 0 5px white;
}

.panel p {
    font-size: 1.8rem;
    color: #a0a0b0;
    margin-bottom: 2rem;
    letter-spacing: 5px;
}

.controls {
    margin: 2.5rem 0;
    text-align: left;
    display: inline-block;
    background: rgba(0,0,0,0.4);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
}

.controls p {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    letter-spacing: 1px;
    color: #e2e8f0;
}

.controls p:last-child {
    margin-bottom: 0;
}

.controls span {
    display: inline-block;
    background: rgba(255,255,255,0.1);
    color: var(--neon-yellow);
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    border: 1px solid rgba(252, 238, 10, 0.6);
    margin-right: 1.2rem;
    min-width: 80px;
    text-align: center;
    box-shadow: 0 0 15px rgba(252, 238, 10, 0.25);
    font-weight: 700;
}

.stats p {
    color: var(--neon-blue);
    font-size: 1.6rem;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.stats span {
    font-family: 'Orbitron', sans-serif;
    color: white;
    font-weight: 700;
    font-size: 2rem;
    text-shadow: 0 0 10px white;
}

.cyber-btn {
    font-family: 'Orbitron', sans-serif;
    background: rgba(0, 243, 255, 0.1);
    color: var(--neon-blue);
    font-size: 1.5rem;
    font-weight: 700;
    padding: 1.2rem 3.5rem;
    border: 2px solid var(--neon-blue);
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 4px;
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.4), inset 0 0 15px rgba(0, 243, 255, 0.2);
    margin-top: 1rem;
}

.cyber-btn:hover {
    background: var(--neon-blue);
    color: var(--bg-dark);
    box-shadow: 0 0 40px var(--neon-blue), inset 0 0 10px rgba(255,255,255,0.5);
    transform: translateY(-3px);
}

.cyber-btn:active {
    transform: translateY(1px);
}

/* CRT scanline effect over canvas */
.game-wrapper::after {
    content: " ";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.15) 50%);
    z-index: 2;
    background-size: 100% 4px;
    pointer-events: none;
}