@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Rajdhani:wght@400;600;700&display=swap');

:root {
    --neon: #00f5ff;
    --red: #ff2d55;
    --gold: #ffd60a;
    --bg: #05050f;
    --asphalt: #1a1a2e;
    --stripe: #ffffff10;
}

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

body {
    background: var(--bg);
    font-family: 'Rajdhani', sans-serif;
    color: white;
    overflow: hidden;
    user-select: none;
}

#gameWrapper {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

canvas {
    display: block;
    image-rendering: pixelated;
}

/* HUD */
#hud {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    pointer-events: none;
    z-index: 10;
}

.hud-panel {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid var(--neon);
    padding: 10px 18px;
    border-radius: 4px;
    box-shadow: 0 0 20px #00f5ff33;
}

.hud-label {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--neon);
    text-transform: uppercase;
    opacity: 0.7;
}

.hud-value {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 42px;
    line-height: 1;
    color: white;
    text-shadow: 0 0 20px var(--neon);
}

.hud-value.red {
    color: var(--red);
    text-shadow: 0 0 20px var(--red);
}

.hud-value.gold {
    color: var(--gold);
    text-shadow: 0 0 20px var(--gold);
}

/* SPEEDOMETER */
#speedoContainer {
    position: absolute;
    bottom: 20px;
    right: 24px;
    z-index: 10;
    pointer-events: none;
}

#speedoCanvas {
    width: 160px;
    height: 160px;
}

/* NITRO BAR */
#nitroContainer {
    position: absolute;
    bottom: 28px;
    left: 24px;
    z-index: 10;
    pointer-events: none;
}

.nitro-label {
    font-size: 10px;
    letter-spacing: 4px;
    color: var(--neon);
    margin-bottom: 6px;
    text-shadow: 0 0 10px var(--neon);
}

#nitroBar {
    width: 160px;
    height: 14px;
    border: 1px solid var(--neon);
    border-radius: 7px;
    overflow: hidden;
    background: #00f5ff11;
    box-shadow: 0 0 12px #00f5ff55;
}

#nitroFill {
    height: 100%;
    background: linear-gradient(90deg, #00b4d8, var(--neon));
    border-radius: 7px;
    transition: width 0.1s;
    box-shadow: 0 0 8px var(--neon);
}

/* SCREENS */
.screen {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(5, 5, 15, 0.95);
    z-index: 20;
}

.screen.hidden {
    display: none;
}

.game-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(60px, 12vw, 120px);
    letter-spacing: 8px;
    background: linear-gradient(135deg, var(--neon), var(--red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    filter: drop-shadow(0 0 30px #00f5ff88);
    animation: titlePulse 2s ease-in-out infinite;
}

@keyframes titlePulse {

    0%,
    100% {
        filter: drop-shadow(0 0 30px #00f5ff88);
    }

    50% {
        filter: drop-shadow(0 0 60px #ff2d5588);
    }
}

.subtitle {
    color: var(--neon);
    letter-spacing: 6px;
    font-size: 14px;
    margin-top: -10px;
    margin-bottom: 50px;
    opacity: 0.7;
}

.btn {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 22px;
    letter-spacing: 4px;
    padding: 14px 50px;
    border: 2px solid var(--neon);
    background: transparent;
    color: var(--neon);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
    margin: 8px;
    text-shadow: 0 0 10px var(--neon);
    box-shadow: 0 0 20px #00f5ff33, inset 0 0 20px #00f5ff11;
}

.btn:hover {
    background: var(--neon);
    color: var(--bg);
    box-shadow: 0 0 40px var(--neon);
    text-shadow: none;
    transform: scale(1.05);
}

.btn.red-btn {
    border-color: var(--red);
    color: var(--red);
    text-shadow: 0 0 10px var(--red);
    box-shadow: 0 0 20px #ff2d5533, inset 0 0 20px #ff2d5511;
}

.btn.red-btn:hover {
    background: var(--red);
    color: white;
    box-shadow: 0 0 40px var(--red);
}

.controls-hint {
    margin-top: 40px;
    color: #ffffff55;
    font-size: 13px;
    letter-spacing: 2px;
    text-align: center;
    line-height: 2;
}

.controls-hint span {
    color: var(--neon);
}

/* DIFFICULTY */
.diff-select {
    display: flex;
    gap: 12px;
    margin: 20px 0 30px;
}

.diff-btn {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 16px;
    letter-spacing: 3px;
    padding: 10px 28px;
    border: 1px solid #ffffff33;
    background: transparent;
    color: #ffffff66;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
}

.diff-btn.active,
.diff-btn:hover {
    border-color: var(--gold);
    color: var(--gold);
    box-shadow: 0 0 20px #ffd60a44;
}

/* GAME OVER */
.final-score {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 80px;
    color: var(--gold);
    text-shadow: 0 0 40px var(--gold);
    margin: 10px 0;
}

.final-label {
    color: #ffffff55;
    letter-spacing: 4px;
    font-size: 13px;
}

/* MOBILE CONTROLS */
#mobileControls {
    display: none;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 180px;
    z-index: 15;
    pointer-events: none;
}

.m-btn {
    position: absolute;
    background: rgba(0, 245, 255, 0.15);
    border: 2px solid var(--neon);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--neon);
    pointer-events: all;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

#mLeft {
    width: 70px;
    height: 70px;
    bottom: 60px;
    left: 30px;
}

#mRight {
    width: 70px;
    height: 70px;
    bottom: 60px;
    left: 120px;
}

#mNitro {
    width: 70px;
    height: 70px;
    bottom: 60px;
    right: 30px;
    border-color: var(--red);
    color: var(--red);
    background: rgba(255, 45, 85, 0.15);
}

@media (max-width: 768px) or (pointer: coarse) {
    #mobileControls {
        display: block;
    }
}

/* SCANLINE OVERLAY */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(0deg, transparent, transparent 2px, #00000008 2px, #00000008 4px);
    pointer-events: none;
    z-index: 100;
}

/* LAP FLASH */
#lapFlash {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Bebas Neue', sans-serif;
    font-size: 80px;
    letter-spacing: 8px;
    color: var(--gold);
    text-shadow: 0 0 40px var(--gold);
    pointer-events: none;
    z-index: 12;
    opacity: 0;
    transition: opacity 0.2s;
}