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

body {
    background: #080d20;
    color: white;
    font-family: Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
}

.game-container {
    width: 100%;
    max-width: 650px;
    padding: 22px;
    text-align: center;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0 25px;
}

.logo {
    font-size: 24px;
    font-weight: 900;
    letter-spacing: 2px;
}

.logo span {
    color: #38d9ff;
}

.best {
    color: #aab5d1;
    font-size: 13px;
}

.game-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.score-box {
    text-align: left;
}

.score-box small {
    color: #38d9ff;
    letter-spacing: 2px;
}

.score-box h1 {
    font-size: 40px;
}

#status {
    font-size: 12px;
    color: #b7c6e7;
}

.canvas-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    border: 1px solid #233c65;
    border-radius: 18px;
    overflow: hidden;
    background: radial-gradient(circle, #172b50, #080d20 75%);
}

canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 25px;
    background: #080d20cc;
    gap: 18px;
}

.overlay h2 {
    color: #38d9ff;
    font-size: 32px;
}

.overlay p {
    color: #c6d2ed;
    font-size: 14px;
}

button {
    border: none;
    border-radius: 30px;
    background: #38d9ff;
    color: #081225;
    font-weight: bold;
    padding: 15px 28px;
    cursor: pointer;
    font-size: 14px;
}

button:active {
    transform: scale(0.96);
}

.controls {
    margin-top: 22px;
}

#switchBtn {
    width: 100%;
    max-width: 280px;
}

.controls p {
    color: #8d9bb9;
    font-size: 12px;
    margin-top: 12px;
}

footer {
    color: #647594;
    font-size: 10px;
    letter-spacing: 2px;
    margin-top: 30px;
}
/* ORBIT RUSH v0.2 VISUAL UPGRADE */

body {
    background: radial-gradient(circle at center, #14264b, #050814 85%);
}

.canvas-wrapper {
    box-shadow: 0 0 30px #168bff25;
}

button {
    transition: 0.2s ease;
    box-shadow: 0 0 15px #38d9ff40;
}

button:hover {
    background: #8cecff;
    box-shadow: 0 0 25px #38d9ff90;
}

.overlay {
    backdrop-filter: blur(5px);
}

.combo-box {
    color: #ffcc55;
    font-size: 13px;
    font-weight: bold;
}
/* VERSION 0.3 */

.sound-btn {
    padding: 9px 13px;
    font-size: 10px;
}

.overlay label {
    color: #38d9ff;
    font-size: 12px;
    letter-spacing: 2px;
}

#difficulty {
    padding: 12px 20px;
    border-radius: 20px;
    background: #172b50;
    color: white;
    border: 1px solid #38d9ff;
    font-weight: bold;
    cursor: pointer;
}

.achievement-panel {
    margin-top: 20px;
    padding: 18px;
    border: 1px solid #233c65;
    border-radius: 15px;
    background: #101a32;
    text-align: left;
}

.achievement-panel h3 {
    color: #ffcc55;
    font-size: 14px;
    margin-bottom: 12px;
}

#achievementList {
    color: #b7c6e7;
    font-size: 13px;
    line-height: 2;
}

#achievementToast {
    color: #ffcc55;
    font-size: 13px;
    font-weight: bold;
    margin-top: 8px;
}

@media (max-width: 420px) {
    .game-container {
        padding: 12px;
    }

    .logo {
        font-size: 18px;
    }

    .sound-btn {
        padding: 8px;
    }
}
/* ORBIT RUSH v0.4 — MOBILE OPTIMISATION */

html {
    min-height: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    width: 100%;
    overflow-x: hidden;
    overscroll-behavior: none;
}

.game-container {
    width: min(100%, 650px);
    padding: clamp(10px, 4vw, 22px);
}

.canvas-wrapper {
    width: 100%;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

canvas {
    touch-action: none;
}

button {
    min-height: 46px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

#switchBtn {
    width: 100%;
    max-width: 320px;
    min-height: 54px;
}

.pause-btn {
    background: #ffcc55;
    width: 100%;
    max-width: 180px;
}

.pause-overlay {
    display: none;
    z-index: 5;
}

.pause-overlay h2 {
    color: #ffcc55;
}

.achievement-panel {
    overflow-wrap: anywhere;
}

@media (max-width: 480px) {
    .game-container {
        padding: 12px;
    }

    header {
        gap: 7px;
        flex-wrap: wrap;
    }

    .logo {
        font-size: 18px;
    }

    .best {
        font-size: 11px;
    }

    .sound-btn {
        font-size: 9px;
        padding: 8px;
    }

    .score-box h1 {
        font-size: 32px;
    }

    .game-info {
        gap: 8px;
    }

    #status {
        font-size: 10px;
    }
}

@media (max-height: 650px) and (orientation: landscape) {
    .game-container {
        max-width: 520px;
    }

    header {
        padding: 5px 0 10px;
    }
}