:root {
    --bg-color: #030308;
    --neon-red: #FF1F1F;
    --neon-blue: #00F0FF;
    --neon-purple: #9D00FF;
    --neon-magenta: #FF00E5;
    --neon-cyan: #00F0FF;
    --neon-gold: #FFD600;
    --glass-bg: rgba(255, 255, 255, 0.02);
    --glass-border: rgba(255, 255, 255, 0.05);
    --prism-gradient: linear-gradient(90deg, #FF1F1F, #FF00E5, #9D00FF, #00F0FF, #FFD600);
    --mesh-1: rgba(157, 0, 255, 0.1);
    --mesh-2: rgba(0, 240, 255, 0.1);
    --mesh-3: rgba(255, 0, 229, 0.1);
    --text-glow-blue: 0 0 10px rgba(0, 194, 255, 0.8), 0 0 20px rgba(0, 194, 255, 0.4);
    --text-glow-purple: 0 0 10px rgba(123, 46, 255, 0.8), 0 0 20px rgba(123, 46, 255, 0.4);
}

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

body {
    background: var(--bg-color);
    color: #fff;
    font-family: 'Poppins', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    background: var(--bg-color);
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: 
        radial-gradient(circle at 20% 30%, var(--mesh-1) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, var(--mesh-2) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, var(--mesh-3) 0%, transparent 50%);
    filter: blur(80px);
    z-index: -1;
    animation: mesh-move 20s infinite alternate-reverse;
}

.overlay-grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("https://grainy-gradients.vercel.app/noise.svg");
    opacity: 0.05;
    pointer-events: none;
    z-index: 99;
}

.victory-glow {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle, var(--neon-cyan) 0%, transparent 70%);
    opacity: 0;
    pointer-events: none;
    z-index: 5;
    transition: opacity 1s ease;
    mix-blend-mode: screen;
}

@keyframes mesh-move {
    0% { transform: scale(1) translate(0, 0); }
    100% { transform: scale(1.2) translate(5%, 5%); }
}

#particle-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.cursor-trail {
    position: fixed;
    width: 20px;
    height: 20px;
    background: radial-gradient(circle, var(--neon-blue) 0%, transparent 80%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    filter: blur(5px);
    mix-blend-mode: screen;
    transition: transform 0.1s ease;
}

.container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 900px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    perspective: 1000px;
}

/* Glassmorphism Generic */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
}

/* Hero Section */
.hero {
    text-align: center;
}

.glow-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 3.8rem;
    font-weight: 900;
    letter-spacing: 0.6rem;
    background: var(--prism-gradient);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-shift 4s infinite linear, title-glow 3s infinite alternate;
}

.subtitle {
    font-family: 'Orbitron', sans-serif;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 0.5rem;
    letter-spacing: 0.2rem;
    font-size: 0.9rem;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.stat-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
}

.stat-card.accent {
    border-bottom-color: var(--neon-purple);
    box-shadow: 0 10px 20px rgba(123, 46, 255, 0.15);
}

.stat-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

#user-score { color: var(--neon-blue); }
#computer-score { color: var(--neon-red); }
#win-streak { color: var(--neon-purple); }

/* Battle Arena */
.game-arena {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.battle-zone {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    padding: 3rem;
    position: relative;
    border-radius: 30px;
}

/* Snake Border Animation */
.battle-zone::before {
    content: "";
    position: absolute;
    inset: -2px;
    background: conic-gradient(from 0deg, 
        transparent 0%, 
        var(--neon-purple) 25%, 
        transparent 50%, 
        var(--neon-blue) 75%, 
        transparent 100%);
    border-radius: 32px;
    animation: snake-rotate 4s linear infinite;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
}

@keyframes snake-rotate {
    to { transform: rotate(360deg); }
}

.tech-corner {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid var(--neon-cyan);
    opacity: 0.5;
}
.top-left { top: 15px; left: 15px; border-right: 0; border-bottom: 0; }
.top-right { top: 15px; right: 15px; border-left: 0; border-bottom: 0; }
.bottom-left { bottom: 15px; left: 15px; border-right: 0; border-top: 0; }
.bottom-right { bottom: 15px; right: 15px; border-left: 0; border-top: 0; }

.item-3d {
    transform-style: preserve-3d;
    transition: transform 0.1s ease-out;
}

.choice-display {
    width: 250px;
    height: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    position: relative;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.choice-icon {
    font-size: 5rem;
    color: rgba(255, 255, 255, 0.15);
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.1));
}

.choice-label {
    font-size: 0.8rem;
    letter-spacing: 0.2rem;
    color: rgba(255, 255, 255, 0.4);
}

.vs-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--neon-purple);
    text-shadow: 0 0 15px rgba(123, 46, 255, 0.6);
}

.result-banner {
    padding: 1.5rem;
    text-align: center;
    border-radius: 15px;
    border-left: 5px solid var(--neon-purple);
}

#result-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    letter-spacing: 0.2rem;
    text-transform: uppercase;
}

/* Controls */
.controls {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.game-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 20px;
    color: #fff;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 160px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), inset 0 0 0 rgba(255, 255, 255, 0);
}

.game-btn i {
    font-size: 3rem;
    transition: transform 0.4s ease;
}

.game-btn span {
    font-family: 'Orbitron', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.1rem;
}

.game-btn::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s;
}

.game-btn:hover {
    transform: translateY(-10px) scale(1.05);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.3);
}

.game-btn:hover::after {
    opacity: 1;
}

.game-btn:hover i {
    transform: scale(1.1);
}

.game-btn.rock:hover { color: #508BFF; border-color: #508BFF; box-shadow: 0 0 30px rgba(80, 139, 255, 0.4); }
.game-btn.paper:hover { color: #BCFFFB; border-color: #BCFFFB; box-shadow: 0 0 30px rgba(188, 255, 251, 0.4); }
.game-btn.scissors:hover { color: #FF2EEF; border-color: #FF2EEF; box-shadow: 0 0 30px rgba(255, 46, 239, 0.4); }

.game-btn:active {
    transform: scale(0.95);
}

/* History */
.footer-actions {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
}

.history-panel {
    flex: 1;
    padding: 1.5rem;
    max-height: 200px;
    overflow-y: auto;
}

.history-panel h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 0.2rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

#history-list {
    list-style: none;
    display: flex;
    flex-direction: column-reverse;
    gap: 0.5rem;
}

.history-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    font-size: 0.85rem;
    animation: slide-in 0.4s ease-out;
}

.history-item span:first-child {
    font-weight: 600;
}

.win-row { border-left: 3px solid var(--neon-gold); color: var(--neon-gold); }
.lose-row { border-left: 3px solid var(--neon-red); color: var(--neon-red); }
.draw-row { border-left: 3px solid var(--neon-purple); color: var(--neon-purple); }

.reset-btn {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.6);
    padding: 1rem 2rem;
    border-radius: 15px;
    cursor: pointer;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.reset-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: #fff;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

/* Animations */
@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes title-glow {
    from { text-shadow: 0 0 10px rgba(255, 255, 255, 0.2); }
    to { text-shadow: 0 0 30px rgba(255, 255, 255, 0.6); }
}

@keyframes slide-in {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}


@keyframes cpu-glow {
    0% { filter: brightness(1); }
    50% { filter: brightness(1.5) drop-shadow(0 0 15px var(--neon-red)); }
    100% { filter: brightness(1); }
}

/* Result specific classes */
.win-state { border-color: var(--neon-gold); box-shadow: 0 0 50px rgba(255, 214, 0, 0.6); animation: win-impact 1.5s cubic-bezier(0.23, 1, 0.32, 1); }
.lose-state { border-color: var(--neon-red); box-shadow: 0 0 50px rgba(255, 31, 31, 0.6); animation: lose-impact 0.6s cubic-bezier(0.36, 0.07, 0.19, 0.97) both; }
.draw-state { border-color: var(--neon-purple); box-shadow: 0 0 40px rgba(157, 0, 255, 0.5); }

@keyframes win-impact {
    0% { transform: scale(0.9); filter: brightness(3); }
    100% { transform: scale(1); filter: brightness(1); }
}

@keyframes lose-impact {
    10%, 90% { transform: translate3d(-2px, 0, 0); }
    20%, 80% { transform: translate3d(4px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-8px, 0, 0); }
    40%, 60% { transform: translate3d(8px, 0, 0); }
}

.choice-active {
    transform: scale(1.1) rotate(5deg);
    border-color: #fff;
    opacity: 1 !important;
}

.pulse { animation: pulse 2s infinite; }
@keyframes pulse {
    0% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
    100% { opacity: 0.6; transform: scale(1); }
}

/* Reboot Overlay */
.reboot-overlay {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 1000;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--neon-cyan);
    font-family: 'Orbitron', sans-serif;
}

.reboot-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.progress-bar-container {
    width: 300px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar-fill {
    width: 0%;
    height: 100%;
    background: var(--neon-cyan);
    box-shadow: 0 0 15px var(--neon-cyan);
}

.glitch-text {
    font-size: 2.5rem;
    animation: glitch 1s infinite alternate;
}

@keyframes glitch {
    0% { transform: skewX(-15deg); opacity: 0.8; }
    20% { transform: skewX(10deg); opacity: 1; text-shadow: 2px 2px var(--neon-red); }
    40% { transform: skewX(-5deg); text-shadow: -2px -2px var(--neon-blue); }
    100% { transform: skewX(0); }
}

@keyframes progress-load {
    0% { width: 0; }
    100% { width: 100%; }
}

/* Enhanced Reset Button */
.reset-btn {
    border-color: var(--neon-magenta);
    box-shadow: 0 0 10px rgba(255, 0, 229, 0.1);
}

.reset-btn:hover {
    background: var(--neon-magenta);
    color: #fff;
    border-color: var(--neon-magenta);
    box-shadow: 0 0 20px rgba(255, 0, 229, 0.4);
}