/* Mobile Controls */
#mobile-controls {
    position: fixed;
    bottom: 30px;
    left: 30px;
    z-index: 150;
    display: none;
}
.touch-btn {
    width: 55px;
    height: 55px;
    background: rgba(255,255,255,0.2);
    border: 2px solid rgba(255,255,255,0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
    user-select: none;
    transition: all 0.1s;
}
.touch-btn:active {
    background: rgba(255,255,255,0.4);
    transform: scale(0.95);
}
.dpad {
    display: grid;
    grid-template-columns: repeat(3, 55px);
    grid-template-rows: repeat(3, 55px);
    gap: 3px;
}
.dpad-center {
    background: none;
    border: none;
}
#sprint-btn {
    position: fixed;
    bottom: 50px;
    right: 240px;
    z-index: 150;
    display: none;
}

/* Mobile-specific adjustments */
@media (max-width: 768px) {
    #ui {
        font-size: 14px;
        top: 10px;
    }

    #hp-bar-container {
        width: 100px;
    }

    #stamina-container {
        width: 70px;
    }

    #map-ui {
        width: 120px;
        height: 90px;
        bottom: 10px;
        right: 10px;
    }

    #leaderboard-btn, #help-btn {
        top: 10px;
        padding: 4px 8px;
        font-size: 10px;
    }
    #leaderboard-btn { right: 140px; }
    #help-btn { right: 180px; }

    #music-toggle {
        bottom: 10px;
        left: auto;
        right: 10px;
        padding: 4px 8px;
        font-size: 14px;
    }

    .title-main {
        font-size: 36px;
    }

    .title-sub {
        font-size: 14px;
        letter-spacing: 4px;
    }

    .mode-btn {
        padding: 12px 20px;
        font-size: 12px;
    }

    .popup-box {
        padding: 20px;
        max-width: 95%;
    }

    #keyboard-help {
        display: none !important;
    }

    #help-btn {
        display: none;
    }

    #stats-display {
        top: 10px;
        left: 10px;
        font-size: 10px;
    }

    #powerup-display {
        top: 50px;
        left: 10px;
    }

    .powerup-indicator {
        font-size: 9px;
        padding: 4px 8px;
    }

    #achievement-popup {
        top: 50px;
        right: 10px;
        padding: 10px 15px;
    }

    #sprint-btn {
        right: 140px;
        bottom: 30px;
    }
}

@media (max-width: 480px) {
    .diff-btn {
        padding: 8px 12px;
        font-size: 12px;
    }

    .mode-btn {
        padding: 10px 15px;
        font-size: 11px;
        margin: 5px;
    }

    #tutorial-box {
        padding: 15px;
    }

    .tutorial-img {
        font-size: 36px;
    }

    #tutorial-box h2 {
        font-size: 18px;
    }

    #tutorial-box p {
        font-size: 13px;
    }
}

/* Landscape mobile */
@media (max-height: 500px) {
    #ui {
        top: 5px;
    }

    #map-ui {
        width: 100px;
        height: 75px;
    }

    #mobile-controls {
        bottom: 10px;
        left: 10px;
    }

    .touch-btn {
        width: 45px;
        height: 45px;
        font-size: 16px;
    }

    .dpad {
        grid-template-columns: repeat(3, 45px);
        grid-template-rows: repeat(3, 45px);
    }
}