/* Military Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Rajdhani:wght@400;600;700&display=swap');

/* Global Styles */
body {
    margin: 0;
    overflow: hidden;
    background: linear-gradient(45deg, #1a1a1a 0%, #2d2d2d 50%, #1a1a1a 100%);
    color: #00ff41;
    font-family: 'Rajdhani', monospace;
    font-weight: 600;
    letter-spacing: 1px;
}

canvas {
    display: block;
}

/* Login Screen - Military Command Entry */
#login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 25% 25%, rgba(139, 69, 19, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(74, 93, 35, 0.4) 0%, transparent 50%),
        linear-gradient(135deg, rgba(15, 15, 15, 0.95) 0%, rgba(30, 30, 30, 0.95) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    font-family: 'Orbitron', monospace;
    backdrop-filter: blur(5px);
}

.login-content {
    background: linear-gradient(135deg, 
        rgba(45, 62, 35, 0.95) 0%, 
        rgba(35, 45, 25, 0.95) 50%, 
        rgba(25, 35, 20, 0.95) 100%);
    padding: 20px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.8),
        0 0 40px rgba(74, 93, 35, 0.4),
        inset 0 2px 8px rgba(255, 255, 255, 0.1);
    border: 4px solid #4a5d23;
    backdrop-filter: blur(10px);
    max-width: 500px;
    width: 90%;
}

.login-content h1 {
    color: #ffd700;
    margin-bottom: 15px;
    font-size: 42;
    font-weight: 900;
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.8),
        0 0 20px rgba(255, 215, 0, 0.6);
    text-transform: uppercase;
    letter-spacing: 4px;
}

.login-content .subtitle {
    color: #00ff41;
    margin-bottom: 40px;
    font-size: 18px;
    font-family: 'Rajdhani', monospace;
    text-shadow: 0 0 8px rgba(0, 255, 65, 0.5);
}

.login-form {
    margin: 30px;
}

.startupImage {
    width: 30%;
    height: auto;
    max-width: 400px;
    mix-blend-mode: multiply;
}

.login-form label {
    display: block;
    color: #00ff41;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 0 0 5px rgba(0, 255, 65, 0.4);
}

.login-form input[type="text"] {
    width: 100%;
    padding: 15px 20px;
    font-size: 18px;
    font-family: 'Rajdhani', monospace;
    font-weight: 600;
    background: linear-gradient(135deg, 
        rgba(20, 30, 15, 0.9) 0%, 
        rgba(15, 25, 10, 0.9) 100%);
    border: 3px solid #4a5d23;
    border-radius: 8px;
    color: #00ff41;
    text-align: center;
    letter-spacing: 2px;
    box-shadow: 
        inset 0 2px 5px rgba(0, 0, 0, 0.5),
        0 0 10px rgba(74, 93, 35, 0.3);
    transition: all 0.3s ease;
    text-shadow: 0 0 3px rgba(0, 255, 65, 0.3);
}

.login-form input[type="text"]:focus {
    outline: none;
    border-color: #6a7d43;
    box-shadow: 
        inset 0 2px 5px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(106, 125, 67, 0.6);
    color: #00ff91;
    text-shadow: 0 0 5px rgba(0, 255, 145, 0.5);
}

.login-form input[type="text"]::placeholder {
    color: rgba(0, 255, 65, 0.4);
    font-style: italic;
}

.login-btn {
    background: linear-gradient(135deg, #8b4513 0%, #a0522d 50%, #8b4513 100%);
    border: 3px solid #daa520;
    color: #fff;
    padding: 15px 30px;
    font-size: 18px;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    cursor: pointer;
    border-radius: 8px;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.4s ease;
    box-shadow: 
        0 6px 12px rgba(0, 0, 0, 0.4),
        inset 0 2px 5px rgba(255, 255, 255, 0.2);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
    position: relative;
    overflow: hidden;
}

.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: left 0.5s ease;
}

.login-btn:hover::before {
    left: 100%;
}

.login-btn:hover {
    background: linear-gradient(135deg, #a0522d 0%, #cd853f 50%, #a0522d 100%);
    box-shadow: 
        0 8px 16px rgba(0, 0, 0, 0.4),
        0 0 25px rgba(218, 165, 32, 0.5),
        inset 0 2px 5px rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    border-color: #ffcc00;
}

.login-btn:active {
    transform: translateY(-1px);
    box-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.4),
        inset 0 2px 5px rgba(255, 255, 255, 0.1);
}

.login-btn:disabled {
    background: linear-gradient(135deg, #4a4a4a 0%, #666666 50%, #4a4a4a 100%);
    border-color: #777;
    color: #aaa;
    cursor: not-allowed;
    transform: none;
    box-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.2),
        inset 0 1px 3px rgba(255, 255, 255, 0.1);
}

/* UI Container - Military Command Panel Style */
#ui-container {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 20px;
    background: linear-gradient(135deg, 
        rgba(45, 62, 35, 0.95) 0%, 
        rgba(35, 45, 25, 0.95) 50%, 
        rgba(25, 35, 20, 0.95) 100%);
    border: 3px solid #4a5d23;
    border-radius: 8px;
    box-shadow: 
        0 0 20px rgba(74, 93, 35, 0.3),
        inset 0 2px 5px rgba(255, 255, 255, 0.1),
        inset 0 -2px 5px rgba(0, 0, 0, 0.3);
    font-size: 16px;
    min-width: 280px;
    backdrop-filter: blur(5px);
}

#ui-container::before {
    content: "⚡ COMMAND CENTER ⚡";
    display: block;
    text-align: center;
    color: #ffd700;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 2px solid #4a5d23;
    text-shadow: 0 0 8px rgba(255, 215, 0, 0.5);
}

#ui-container p {
    margin: 8px 0;
    color: #00ff41;
    text-shadow: 0 0 5px rgba(0, 255, 65, 0.3);
    padding: 5px 8px;
    background: rgba(0, 0, 0, 0.3);
    border-left: 3px solid #4a5d23;
    border-radius: 3px;
}

/* Military Style Button */
#ui-container button {
    background: linear-gradient(135deg, #8b4513 0%, #a0522d 50%, #8b4513 100%);
    border: 2px solid #daa520;
    color: #fff;
    padding: 12px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 15px;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    margin-top: 15px;
    cursor: pointer;
    border-radius: 6px;
    width: 100%;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: all 0.3s ease;
    box-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.4),
        inset 0 1px 3px rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7);
}

#ui-container button:hover {
    background: linear-gradient(135deg, #a0522d 0%, #cd853f 50%, #a0522d 100%);
    box-shadow: 
        0 6px 12px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(218, 165, 32, 0.4),
        inset 0 1px 3px rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

#ui-container button:active {
    transform: translateY(0px);
    box-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.4),
        inset 0 1px 3px rgba(255, 255, 255, 0.1);
}

#ui-container button:disabled {
    background: linear-gradient(135deg, #4a4a4a 0%, #666666 50%, #4a4a4a 100%);
    border-color: #777;
    color: #aaa;
    cursor: not-allowed;
    transform: none;
    box-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.2),
        inset 0 1px 3px rgba(255, 255, 255, 0.1);
}

/* Button Container for UI Controls */
.button-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 15px;
}

/* UI Button Styles - Added back from UI.js */
.ui-button {
    background: linear-gradient(135deg, #8b4513 0%, #a0522d 50%, #8b4513 100%);
    border: 2px solid #daa520;
    color: #fff;
    padding: 12px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 15px;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    cursor: pointer;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: all 0.3s ease;
    box-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.4),
        inset 0 1px 3px rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7);
}

.ui-button:hover {
    background: linear-gradient(135deg, #a0522d 0%, #cd853f 50%, #a0522d 100%);
    box-shadow: 
        0 6px 12px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(218, 165, 32, 0.4),
        inset 0 1px 3px rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* Settings Button - Quick Access */
.settings-btn {
    position: fixed !important;
    top: 15px !important;
    right: 15px !important;
    width: 50px !important;
    height: 50px !important;
    border-radius: 50% !important;
    background: linear-gradient(135deg, #4a5d23 0%, #5d7329 50%, #4a5d23 100%) !important;
    border: 2px solid #6b8234 !important;
    color: #00ff41 !important;
    font-size: 18px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    z-index: 1500 !important;
    box-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.3),
        0 0 12px rgba(74, 93, 35, 0.4),
        inset 0 1px 3px rgba(255, 255, 255, 0.1) !important;
    transition: all 0.2s ease !important;
    text-shadow: 0 0 4px rgba(0, 255, 65, 0.5) !important;
    backdrop-filter: blur(2px) !important;
    padding: 0 !important;
    margin: 0 !important;
    min-width: auto !important;
}

.settings-btn:hover {
    transform: translateY(-2px) scale(1.05) !important;
    box-shadow: 
        0 6px 12px rgba(0, 0, 0, 0.4),
        0 0 20px rgba(74, 93, 35, 0.6),
        inset 0 1px 3px rgba(255, 255, 255, 0.2) !important;
    background: linear-gradient(135deg, #5d7329 0%, #6b8234 50%, #5d7329 100%) !important;
}

.settings-btn:active {
    transform: translateY(0px) scale(1.02) !important;
    box-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.3),
        inset 0 2px 4px rgba(0, 0, 0, 0.2) !important;
}

/* Turn Status Light - Added back from UI.js */
#turn-status-light {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: #666;
    border: 2px solid #444;
    transition: all 0.3s ease;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
}

#turn-status-light.player-turn,
#turn-status-light[data-turn="player"] {
    background: radial-gradient(circle, #00ff41 0%, #00cc33 100%);
    border-color: #00aa22;
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.6);
}

#turn-status-light.enemy-turn,
#turn-status-light[data-turn="enemy"] {
    background: radial-gradient(circle, #ff4444 0%, #cc0000 100%);
    border-color: #aa0000;
    box-shadow: 0 0 15px rgba(255, 68, 68, 0.6);
}

/* Mobile Hidden - Added back from UI.js */
.mobile-hidden {
    display: block;
}

@media (max-width: 768px) {
    .mobile-hidden {
        display: none !important;
    }
}

/* Controls Info - Tactical Display */
#controls-info {
    position: absolute;
    bottom: 15px;
    left: 15px;
    padding: 15px;
    background: linear-gradient(135deg, 
        rgba(35, 45, 25, 0.9) 0%, 
        rgba(25, 35, 20, 0.9) 50%, 
        rgba(20, 30, 15, 0.9) 100%);
    border: 2px solid #4a5d23;
    border-radius: 8px;
    font-size: 13px;
    font-family: 'Rajdhani', monospace;
    color: #00ff41;
    text-shadow: 0 0 3px rgba(0, 255, 65, 0.3);
    transition: all 0.5s ease-in-out;
    opacity: 1;
    backdrop-filter: blur(3px);
    box-shadow: 
        0 0 15px rgba(74, 93, 35, 0.2),
        inset 0 1px 3px rgba(255, 255, 255, 0.1);
}

#controls-info::before {
    content: "🎯 TACTICAL CONTROLS";
    display: block;
    text-align: center;
    color: #ffd700;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 12px;
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 1px solid #4a5d23;
    text-shadow: 0 0 5px rgba(255, 215, 0, 0.5);
}

#controls-info.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(200px);
}

#controls-info p {
    margin: 3px 0;
    padding: 2px 5px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 2px;
}

/* Mobile Controls - Hidden by default on desktop */
#mobile-controls {
    z-index: 2500 !important;
    display: none !important;
}

/* Message Overlay - Military Alert Style */
#message-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    backdrop-filter: blur(5px);
}

/* Game Over Container - Enhanced Military Design */
.game-over-container {
    background: linear-gradient(135deg, 
        rgba(139, 69, 19, 0.95) 0%, 
        rgba(160, 82, 45, 0.95) 50%, 
        rgba(139, 69, 19, 0.95) 100%);
    border: 4px solid #daa520;
    border-radius: 15px;
    padding: 40px 50px;
    text-align: center;
    color: #fff;
    font-family: 'Orbitron', monospace;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 2px;
    max-width: 600px;
    min-width: 400px;
    box-shadow: 
        0 0 40px rgba(218, 165, 32, 0.6),
        0 15px 35px rgba(0, 0, 0, 0.8),
        inset 0 2px 8px rgba(255, 255, 255, 0.2);
    animation: gameOverSlideIn 0.5s ease-out;
    position: relative;
    overflow: hidden;
}

.game-over-container::before {
    content: "⚠️ BATTLEFIELD STATUS ⚠️";
    display: block;
    font-size: 16px;
    color: #ffd700;
    margin-bottom: 20px;
    text-shadow: 0 0 8px rgba(255, 215, 0, 0.7);
    font-weight: 700;
}

.game-over-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.1), 
        transparent);
    animation: shimmer 2s infinite;
}

.game-over-container h2 {
    color: #ff4444;
    font-size: 48px;
    margin: 0 0 20px 0;
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.8),
        0 0 20px rgba(255, 68, 68, 0.6);
    animation: pulseGlow 2s infinite alternate;
}

.game-over-container p {
    font-size: 22px;
    margin: 0 0 40px 0;
    color: #fff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    line-height: 1.4;
}

/* Game Over Buttons */
.game-over-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.game-over-buttons .btn {
    background: linear-gradient(135deg, #4a5d23 0%, #5d7329 50%, #4a5d23 100%);
    border: 3px solid #6b8234;
    color: #00ff41;
    padding: 15px 30px;
    font-size: 16px;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    cursor: pointer;
    border-radius: 8px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: all 0.3s ease;
    min-width: 160px;
    box-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(74, 93, 35, 0.3),
        inset 0 1px 3px rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7);
    position: relative;
    overflow: hidden;
}

.game-over-buttons .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: left 0.5s ease;
}

.game-over-buttons .btn:hover {
    background: linear-gradient(135deg, #5d7329 0%, #6b8234 50%, #5d7329 100%);
    box-shadow: 
        0 6px 12px rgba(0, 0, 0, 0.4),
        0 0 25px rgba(107, 130, 52, 0.5),
        inset 0 1px 3px rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    border-color: #7d9538;
}

.game-over-buttons .btn:hover::before {
    left: 100%;
}

.game-over-buttons .btn:active {
    transform: translateY(0px);
    box-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.4),
        inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

#restart-game-btn {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 50%, #27ae60 100%) !important;
    border-color: #2ecc71 !important;
    box-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(46, 204, 113, 0.3),
        inset 0 1px 3px rgba(255, 255, 255, 0.2) !important;
}

#restart-game-btn:hover {
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 50%, #2ecc71 100%) !important;
    border-color: #27ae60 !important;
    box-shadow: 
        0 6px 12px rgba(0, 0, 0, 0.4),
        0 0 25px rgba(39, 174, 96, 0.5),
        inset 0 1px 3px rgba(255, 255, 255, 0.3) !important;
}

#return-menu-btn {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 50%, #e74c3c 100%) !important;
    border-color: #c0392b !important;
    box-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(231, 76, 60, 0.3),
        inset 0 1px 3px rgba(255, 255, 255, 0.2) !important;
}

#return-menu-btn:hover {
    background: linear-gradient(135deg, #c0392b 0%, #e74c3c 50%, #c0392b 100%) !important;
    border-color: #e74c3c !important;
    box-shadow: 
        0 6px 12px rgba(0, 0, 0, 0.4),
        0 0 25px rgba(192, 57, 43, 0.5),
        inset 0 1px 3px rgba(255, 255, 255, 0.3) !important;
}

/* Animations */
@keyframes gameOverSlideIn {
    0% {
        opacity: 0;
        transform: translateY(-50px) scale(0.8);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes pulseGlow {
    0% {
        text-shadow: 
            2px 2px 4px rgba(0, 0, 0, 0.8),
            0 0 20px rgba(255, 68, 68, 0.6);
    }
    100% {
        text-shadow: 
            2px 2px 4px rgba(0, 0, 0, 0.8),
            0 0 30px rgba(255, 68, 68, 0.9);
    }
}

@keyframes shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* Health Bar Styles - Military HUD */
.health-bar-container {
    background: linear-gradient(90deg, #2d2d2d 0%, #3a3a3a 50%, #2d2d2d 100%);
    border: 2px solid #4a5d23;
    border-radius: 5px;
    box-shadow: 
        0 2px 6px rgba(0, 0, 0, 0.5),
        inset 0 1px 2px rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.health-bar-fill {
    background: linear-gradient(90deg, #ff4444 0%, #ff6666 50%, #ff4444 100%);
    box-shadow: 
        inset 0 1px 2px rgba(255, 255, 255, 0.3),
        0 0 8px rgba(255, 68, 68, 0.4);
    border-radius: 3px;
    transition: all 0.3s ease;
    position: relative;
}

.health-bar-fill.player {
    background: linear-gradient(90deg, #00ff41 0%, #00ff91 50%, #00ff41 100%);
    box-shadow: 
        inset 0 1px 2px rgba(255, 255, 255, 0.3),
        0 0 8px rgba(0, 255, 65, 0.4);
}

.health-bar-fill.low-health {
    background: linear-gradient(90deg, #ff4444 0%, #ff0000 50%, #ff4444 100%);
    animation: lowHealthPulse 1s infinite alternate;
}

.health-bar-fill.medium-health {
    background: linear-gradient(90deg, #ffaa00 0%, #ffcc44 50%, #ffaa00 100%);
}

.health-bar-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #ffffff;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 12px;
    text-shadow: 
        0 0 3px rgba(0, 0, 0, 0.8),
        0 0 6px rgba(0, 255, 65, 0.3);
    z-index: 10;
}

.tank-label {
    font-family: 'Orbitron', monospace;
    font-weight: bold;
    letter-spacing: 1px;
    color: #00ff41;
    text-shadow: 0 0 5px rgba(0, 255, 65, 0.5);
}

/* Health bar animations */
@keyframes lowHealthPulse {
    0% {
        box-shadow: 
            inset 0 1px 2px rgba(255, 255, 255, 0.3),
            0 0 8px rgba(255, 68, 68, 0.4);
    }
    100% {
        box-shadow: 
            inset 0 1px 2px rgba(255, 255, 255, 0.3),
            0 0 15px rgba(255, 0, 0, 0.8);
    }
}

/* Damage Flash Animation - Enhanced */
@keyframes damageFlash {
    0% {
        border-color: rgba(74, 93, 35, 0.8);
        box-shadow: 0 0 5px rgba(74, 93, 35, 0.3);
    }
    25% {
        border-color: rgba(255, 255, 0, 1);
        box-shadow: 0 0 20px rgba(255, 255, 0, 0.8);
    }
    50% {
        border-color: rgba(255, 0, 0, 1);
        box-shadow: 0 0 25px rgba(255, 0, 0, 1);
    }
    75% {
        border-color: rgba(255, 140, 0, 1);
        box-shadow: 0 0 15px rgba(255, 140, 0, 0.8);
    }
    100% {
        border-color: rgba(74, 93, 35, 0.8);
        box-shadow: 0 0 5px rgba(74, 93, 35, 0.3);
    }
}

.health-bar-damage {
    animation: damageFlash 0.5s ease-in-out;
}

/* Difficulty Selection Overlay - Military Command Selection */
#difficulty-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 40%, rgba(139, 69, 19, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(74, 93, 35, 0.3) 0%, transparent 50%),
        linear-gradient(135deg, rgba(20, 20, 20, 0.9) 0%, rgba(40, 40, 40, 0.9) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2501;
    font-family: 'Orbitron', monospace;
    backdrop-filter: blur(3px);
    opacity: 1;
    transform: scale(1);
    transition: all 0.5s ease;
}

#difficulty-overlay[hidden] {
    display: none ;
}

.difficulty-content {
    background: linear-gradient(135deg, 
        rgba(45, 62, 35, 0.95) 0%, 
        rgba(35, 45, 25, 0.95) 50%, 
        rgba(25, 35, 20, 0.95) 100%);
    padding: 50px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.7),
        0 0 30px rgba(74, 93, 35, 0.3),
        inset 0 2px 5px rgba(255, 255, 255, 0.1);
    border: 4px solid #4a5d23;
    backdrop-filter: blur(8px);
}

.difficulty-content h2 {
    color: #ffd700;
    margin-bottom: 40px;
    font-size: 36px;
    font-weight: 900;
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.8),
        0 0 15px rgba(255, 215, 0, 0.5);
    text-transform: uppercase;
    letter-spacing: 3px;
}

.difficulty-content h2::before {
    content: "🎖️ ";
}

.difficulty-content h2::after {
    content: " 🎖️";
}

.difficulty-options {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
    justify-content: center;
}

.difficulty-btn {
    background: linear-gradient(135deg, 
        rgba(60, 75, 45, 0.9) 0%, 
        rgba(45, 60, 35, 0.9) 50%, 
        rgba(35, 50, 25, 0.9) 100%);
    border: 3px solid #4a5d23;
    border-radius: 15px;
    padding: 25px;
    width: 240px;
    cursor: pointer;
    transition: all 0.4s ease;
    color: #00ff41;
    font-family: 'Rajdhani', monospace;
    font-weight: 600;
    backdrop-filter: blur(5px);
    position: relative;
    overflow: hidden;
}

.difficulty-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.1), 
        transparent);
    transition: left 0.5s ease;
}

.difficulty-btn:hover::before {
    left: 100%;
}

.difficulty-btn:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.4),
        0 0 20px rgba(74, 93, 35, 0.5);
    border-color: #6a7d43;
}

.difficulty-btn h3 {
    margin: 0 0 20px 0;
    font-size: 22px;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    text-shadow: 0 0 8px rgba(0, 255, 65, 0.5);
}

.difficulty-btn p {
    margin: 8px 0;
    font-size: 15px;
    color: #bdc3c7;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.difficulty-btn[data-difficulty="sargent"]:hover {
    border-color: #27ae60;
    background: linear-gradient(135deg, 
        rgba(39, 174, 96, 0.2) 0%, 
        rgba(46, 204, 113, 0.2) 50%, 
        rgba(39, 174, 96, 0.2) 100%);
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.4),
        0 0 25px rgba(39, 174, 96, 0.4);
}

.difficulty-btn[data-difficulty="lieutenant"]:hover {
    border-color: #f39c12;
    background: linear-gradient(135deg, 
        rgba(243, 156, 18, 0.2) 0%, 
        rgba(230, 126, 34, 0.2) 50%, 
        rgba(243, 156, 18, 0.2) 100%);
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.4),
        0 0 25px rgba(243, 156, 18, 0.4);
}

.difficulty-btn[data-difficulty="colonel"]:hover {
    border-color: #e74c3c;
    background: linear-gradient(135deg, 
        rgba(231, 76, 60, 0.2) 0%, 
        rgba(192, 57, 43, 0.2) 50%, 
        rgba(231, 76, 60, 0.2) 100%);
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.4),
        0 0 25px rgba(231, 76, 60, 0.4);
}

/* Sound Settings Panel */
.sound-settings-panel {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1500;
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
}

.sound-settings-panel.hidden {
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8);
}

.sound-settings-panel.visible {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.settings-content {
    background: linear-gradient(135deg, 
        rgba(45, 62, 35, 0.95) 0%, 
        rgba(35, 45, 25, 0.95) 50%, 
        rgba(25, 35, 20, 0.95) 100%);
    padding: 30px;
    border-radius: 15px;
    border: 3px solid #4a5d23;
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.8),
        0 0 30px rgba(74, 93, 35, 0.3),
        inset 0 2px 8px rgba(255, 255, 255, 0.1);
    min-width: 350px;
    max-width: 90vw;
    font-family: 'Rajdhani', monospace;
    color: #00ff41;
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    border-bottom: 2px solid #4a5d23;
    padding-bottom: 15px;
}

.settings-header h3 {
    margin: 0;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 1.5em;
    color: #00ff41;
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
}

.close-btn {
    background: none;
    border: 2px solid #ff4444;
    color: #ff4444;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: #ff4444;
    color: white;
    transform: scale(1.1);
}

.volume-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.volume-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.volume-group label {
    font-weight: 600;
    font-size: 1.1em;
    color: #00ff41;
    text-shadow: 0 0 8px rgba(0, 255, 65, 0.3);
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.volume-slider {
    flex: 1;
    height: 8px;
    background: linear-gradient(90deg, #2a2a2a 0%, #4a4a4a 100%);
    border-radius: 5px;
    outline: none;
    border: 1px solid #4a5d23;
    cursor: pointer;
    transition: all 0.2s ease;
}

.volume-slider::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #00ff41 0%, #00cc33 100%);
    border-radius: 50%;
    border: 2px solid #4a5d23;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.4);
    transition: all 0.2s ease;
}

.volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.7);
}

.volume-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #00ff41 0%, #00cc33 100%);
    border-radius: 50%;
    border: 2px solid #4a5d23;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.4);
    transition: all 0.2s ease;
}

.volume-value {
    min-width: 45px;
    text-align: center;
    font-weight: 600;
    color: #00ff41;
    background: rgba(74, 93, 35, 0.3);
    padding: 5px 8px;
    border-radius: 8px;
    border: 1px solid #4a5d23;
    font-size: 0.9em;
}

.master-mute-btn {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #ff6b35 100%);
    border:  2px solid #cc5522;
    color: white;
    padding: 12px 20px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1em;
    transition: all 0.2s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.master-mute-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}

.master-mute-btn.muted {
    background: linear-gradient(135deg, #666666 0%, #888888 50%, #666666 100%);
    border-color: #555555;
    color: #cccccc;
}

.sound-test {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 10px;
}

.test-btn {
    background: linear-gradient(135deg, #4a5d23 0%, #5d7329 50%, #4a5d23 100%);
    border: 2px solid #6b8234;
    color: #00ff41;
    padding: 10px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.test-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
    background: linear-gradient(135deg, #5d7329 0%, #6b8234 50%, #5d7329 100%);
}

.sound-info {
    text-align: center;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #4a5d23;
}

.sound-info small {
    color: #888888;
    font-style: italic;
}

/* Settings Button in Main UI */
#sound-settings-button {
    background: linear-gradient(135deg, #4a5d23 0%, #5d7329 50%, #4a5d23 100%);
    border: 2px solid #6b8234;
    color: #00ff41;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    font-size: 0.9em;
}

#sound-settings-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
    background: linear-gradient(135deg, #5d7329 0%, #6b8234 50%, #5d7329 100%);
}

/* Mobile responsiveness for sound settings */
@media (max-width: 768px) {
    .settings-content {
        min-width: 300px;
        padding: 20px;
        margin: 10px;
    }
    
    .settings-header h3 {
        font-size: 1.3em;
    }
    
    .close-btn {
        width: 30px;
        height: 30px;
        font-size: 16px;
    }
    
    .volume-group label {
        font-size: 1em;
    }
    
    .sound-test {
        flex-direction: column;
        gap: 10px;
    }
    
    .test-btn {
        padding: 8px 12px;
        font-size: 0.9em;
    }
}

/* Mobile-Optimized UI Improvements */

/* Show mobile controls only on actual mobile devices */
/* This works with JavaScript that adds 'mobile-device' class to body */
body.mobile-device #mobile-controls {
    display: flex !important;
}

/* Also show mobile controls on small touch screens */
@media (max-width: 768px) and (pointer: coarse) {
    #mobile-controls {
        display: flex !important;
    }
}

/* Force enable mobile controls when testing */
#mobile-controls.force-enable {
    display: flex !important;
}

/* Mobile Responsive Design - More Aggressive Optimization */
@media (max-width: 768px) {
    body {
        overflow: hidden; /* Prevent any scrolling on mobile */
    }
    
    /* Much more compact UI container */
    #ui-container {
        position: fixed;
        top: 10px;
        left: 10px;
        right: 10px;
        width: auto;
        max-width: none;
        padding: 6px 10px;
        font-size: 11px;
        background: rgba(25, 35, 20, 0.85);
        border-radius: 8px;
        border: 1px solid #4a5d23;
        min-width: auto;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: 8px;
        backdrop-filter: blur(3px);
        z-index: 1001;
    }
    
    /* Remove the command center header on mobile for space */
    #ui-container::before {
        display: none;
    }
    
    /* Compact info display - horizontal layout */
    #ui-container p {
        margin: 0;
        padding: 2px 6px;
        font-size: 10px;
        line-height: 1.2;
        background: rgba(0, 0, 0, 0.3);
        border-left: 2px solid #4a5d23;
        border-radius: 3px;
        white-space: nowrap;
        flex: 0 0 auto;
    }
      /* Enhanced turn indicator with avatar and interactive features */
    #turn-indicator {
        font-weight: bold;
        color: #ffd700 !important;
        border-left-color: #ffd700 !important;
        flex: 1 1 auto;
        min-width: 120px;
        display: flex !important;
        align-items: center;
        gap: 8px;
        cursor: pointer;
        padding: 4px 8px;
        border-radius: 8px;
        transition: all 0.3s ease;
        background: linear-gradient(135deg, rgba(255, 215, 0, 0.1), rgba(255, 215, 0, 0.05));
        border: 1px solid rgba(255, 215, 0, 0.3);
    }
    
    #turn-indicator:hover {
        background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 215, 0, 0.1));
        border-color: rgba(255, 215, 0, 0.6);
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
    }
    
    .player-avatar {
        width: 20px;
        height: 20px;
        border-width: 1px;
    }
    
    #turn-indicator:hover .player-avatar {
        transform: scale(1.05);
        box-shadow: 0 0 6px rgba(255, 215, 0, 0.6);
    }
    
    /* Compact button container */
    .button-container {
        flex-direction: row;
        gap: 6px;
        margin-top: 0;
        flex: 0 0 auto;
    }
    
    #ui-container button {
        padding: 4px 8px;
        font-size: 9px;
        margin-top: 0;
        border-radius: 4px;
        letter-spacing: 0.3px;
        min-height: 28px;
        min-width: 60px;
        white-space: nowrap;
    }
    
    /* Hide non-essential mobile elements */
    .mobile-hidden {
        display: none !important;
    }
    
    /* Completely hide controls info on mobile or make it much smaller */
    #controls-info {
        position: fixed;
        bottom: 5px;
        left: 50%;
        transform: translateX(-50%);
        padding: 4px 8px;
        font-size: 8px;
        max-width: 200px;
        background: rgba(25, 35, 20, 0.7);
        border-radius: 6px;
        border: 1px solid #4a5d23;
        text-align: center;
        z-index: 1000;
    }
    
    /* Hide desktop controls completely on mobile */
    .controls-desktop {
        display: none !important;
    }

    /* Simplified mobile controls text */
    .controls-mobile p {
        margin: 1px 0;
        line-height: 1.1;
        font-size: 8px;
    }    


    /* Gaming-Style Mobile Controls */
    #mobile-controls {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 180px;
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        padding: 15px 20px 20px 20px;
        box-sizing: border-box;
        pointer-events: auto;
        z-index: 0;
    }

    /* Movement D-Pad Controls */
    #movement-controls {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }

    .dpad-container {
        display: grid;
        grid-template-areas:
            ". up ."
            "left center right"
            ". down .";
        grid-template-columns: 1fr 1fr 1fr;
        grid-template-rows: 1fr 1fr 1fr;
        gap: 4px;
        width: 120px;
        height: 120px;
    }

    .dpad-btn {
        width: 36px;
        height: 36px;
        border-radius: 8px;
        border: 2px solid #4a5d23;
        background: linear-gradient(135deg, 
            rgba(74, 93, 35, 0.8) 0%, 
            rgba(74, 93, 35, 0.9) 50%, 
            rgba(45, 62, 35, 0.9) 100%);
        color: #00ff41;
        font-size: 16px;
        font-weight: bold;
        font-family: 'Rajdhani', monospace;
        cursor: pointer;
        user-select: none;
        -webkit-user-select: none;
        touch-action: manipulation;
        pointer-events: auto;
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 
            0 3px 6px rgba(0, 0, 0, 0.3),
            0 0 12px rgba(74, 93, 35, 0.4),
            inset 0 1px 3px rgba(255, 255, 255, 0.1);
        text-shadow: 0 0 4px rgba(0, 255, 65, 0.5);
        transition: all 0.1s ease;
        backdrop-filter: blur(2px);
    }

    #move-up-btn { grid-area: up; }
    #rotate-left-btn { grid-area: left; }
    #rotate-right-btn { grid-area: right; }
    #move-down-btn { grid-area: down; }

    .dpad-horizontal {
        grid-area: left / left / right / right;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 4px;
    }

    .dpad-center {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: radial-gradient(circle, 
            rgba(74, 93, 35, 0.3) 0%, 
            rgba(74, 93, 35, 0.6) 100%);
        border: 2px solid #4a5d23;
        opacity: 0.5;
    }

    /* Action Controls D-Pad */
    #action-controls {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }

    .action-dpad {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 6px;
        width: 140px;
    }

    .action-horizontal {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
    }

    .action-bottom {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 6px;
    }

    .power-controls {
        display: flex;
        gap: 6px;
    }

    .action-btn {
        width: 42px;
        height: 42px;
        border-radius: 50%;
        border: 2px solid #4a5d23;
        background: linear-gradient(135deg, 
            rgba(74, 93, 35, 0.8) 0%, 
            rgba(74, 93, 35, 0.9) 50%, 
            rgba(45, 62, 35, 0.9) 100%);
        color: #00ff41;
        font-size: 14px;
        font-weight: bold;
        font-family: 'Rajdhani', monospace;
        cursor: pointer;
        user-select: none;
        -webkit-user-select: none;
        touch-action: manipulation;
        pointer-events: auto;
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 
            0 3px 6px rgba(0, 0, 0, 0.3),
            0 0 12px rgba(74, 93, 35, 0.4),
            inset 0 1px 3px rgba(255, 255, 255, 0.1);
        text-shadow: 0 0 4px rgba(0, 255, 65, 0.5);
        transition: all 0.1s ease;
        backdrop-filter: blur(2px);
    }

    .power-btn {
        width: 32px;
        height: 32px;
        border-radius: 6px;
        border: 2px solid #4a5d23;
        background: linear-gradient(135deg, 
            rgba(74, 93, 35, 0.8) 0%, 
            rgba(74, 93, 35, 0.9) 50%, 
            rgba(45, 62, 35, 0.9) 100%);
        color: #00ff41;
        font-size: 16px;
        font-weight: bold;
        font-family: 'Rajdhani', monospace;
        cursor: pointer;
        user-select: none;
        -webkit-user-select: none;
        touch-action: manipulation;
        pointer-events: auto;
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 
            0 2px 4px rgba(0, 0, 0, 0.3),
            0 0 8px rgba(74, 93, 35, 0.4),
            inset 0 1px 2px rgba(255, 255, 255, 0.1);
        text-shadow: 0 0 3px rgba(0, 255, 65, 0.5);
        transition: all 0.1s ease;
    }

    /* Fire button - prominent styling */
    .fire-btn {
        width: 50px !important;
        height: 50px !important;
        background: linear-gradient(135deg, 
            rgba(231, 76, 60, 0.8) 0%, 
            rgba(192, 57, 43, 0.9) 50%, 
            rgba(155, 45, 35, 0.9) 100%) !important;
        border-color: #c0392b !important;
        box-shadow: 
            0 4px 8px rgba(0, 0, 0, 0.3),
            0 0 15px rgba(231, 76, 60, 0.5),
            inset 0 2px 4px rgba(255, 255, 255, 0.1) !important;
        font-size: 16px !important;
    }

    /* Scope button - distinctive styling */
    .scope-btn {
        background: linear-gradient(135deg, 
            rgba(52, 152, 219, 0.8) 0%, 
            rgba(41, 128, 185, 0.9) 50%, 
            rgba(30, 100, 150, 0.9) 100%) !important;
        border-color: #2980b9 !important;
        box-shadow: 
            0 3px 6px rgba(0, 0, 0, 0.3),
            0 0 12px rgba(52, 152, 219, 0.4),
            inset 0 1px 3px rgba(255, 255, 255, 0.1) !important;
        font-size: 16px !important;
        text-shadow: 0 0 4px rgba(52, 152, 219, 0.7) !important;
    }

    .scope-btn:active {
        transform: scale(0.95) !important;
        box-shadow: 
            0 1px 3px rgba(0, 0, 0, 0.3),
            0 0 8px rgba(52, 152, 219, 0.3),
            inset 0 2px 4px rgba(0, 0, 0, 0.2) !important;
    }

    /* Button active states */
    .dpad-btn:active, .action-btn:active, .power-btn:active {
        transform: scale(0.95);
        box-shadow: 
            0 1px 3px rgba(0, 0, 0, 0.3),
            0 0 8px rgba(74, 93, 35, 0.3),
            inset 0 2px 4px rgba(0, 0, 0, 0.2);
    }

    .fire-btn:active {
        transform: scale(0.95) !important;
        box-shadow: 
            0 2px 4px rgba(0, 0, 0, 0.3),
            0 0 10px rgba(231, 76, 60, 0.4),
            inset 0 2px 6px rgba(0, 0, 0, 0.2) !important;
    }

    /* Labels */
    .movement-label, .action-label {
        color: #00ff41;
        font-size: 10px;
        font-weight: bold;
        font-family: 'Rajdhani', monospace;
        text-shadow: 0 0 3px rgba(0, 255, 65, 0.5);
        text-align: center;
        user-select: none;    }
    
    /* More compact login screen */
    .login-content {
        padding: 12px 16px;
        margin: 5px;
        max-width: 95vw;
        max-height: 95vh;
        overflow-y: auto;
    }
    
    .login-content h1 {
        font-size: 20px;
        margin-bottom: 10px;
    }
    
    .login-content .subtitle {
        font-size: 14px;
        margin-bottom: 20px;
    }
    
    .startupImage {
        width: 25%;
        max-width: 150px;
    }
    
    /* Compact difficulty selector */
    .difficulty-content {
        padding: 12px;
        margin: 5px;
        max-width: 95vw;
        max-height: 95vh;
        overflow-y: auto;
    }
    
    .difficulty-content h2 {
        font-size: 22px;
        margin-bottom: 20px;
    }
    
    .difficulty-options {
        flex-direction: column;
        gap: 8px;
    }
    
    .difficulty-btn {
        min-height: auto;
        padding: 12px;
        width: 100%;
    }
    
    .difficulty-btn h3 {
        font-size: 16px;
        margin-bottom: 8px;
    }
    
    .difficulty-btn p {
        font-size: 12px;
        margin: 4px 0;
    }

    /* Mobile-optimized settings button */
    .settings-btn {
        top: 65px !important;
        right: 10px !important;
        width: 40px !important;
        height: 40px !important;
        font-size: 30px !important;
        z-index: 1600 !important;
    }

    /* Make message overlay more mobile-friendly */
    #message-overlay {
        padding: 20px 25px;
        font-size: 20px;
        max-width: 90vw;
        word-wrap: break-word;
    }
    
    #message-overlay::before {
        font-size: 12px;
        margin-bottom: 10px;
    }
    
    /* Optimize canvas for mobile */
    canvas {
        width: 100vw !important;
        height: 100vh !important;
        touch-action: pan-x pan-y;
        display: block;
    }
    
    /* Ensure proper touch targets */
    .mobile-btn, button {
        min-width: 42px;
        min-height: 42px;
    }
    
    /* Hide any overflow */
    html, body {
        overflow: hidden;
        position: fixed;
        width: 100%;
        height: 100%;
    }
}

/* Landscape mobile optimization */
@media (max-width: 768px) and (orientation: landscape) {
    #mobile-controls {
        height: 140px; /* Even smaller in landscape */
        padding: 10px 15px 15px 15px;
    }
    
    #ui-container {
        font-size: 10px;
        padding: 4px 8px;
    }
    
    #ui-container p {
        font-size: 9px;
    }
    
    #controls-info {
        font-size: 7px;
        padding: 3px 6px;
        max-width: 150px;    }
    
    /* Even smaller controls in landscape */
    .dpad-container {
        width: 100px;
        height: 100px;
    }
    
    .dpad-btn {
        width: 30px;
        height: 30px;
        font-size: 14px;
    }
    
    .dpad-center {
        width: 30px;
        height: 30px;
    }
    
    .action-btn {
        width: 36px;
        height: 36px;
        font-size: 12px;
    }
    
    .power-btn {
        width: 28px;
        height: 28px;
        font-size: 14px;
    }
    
    .fire-btn {
        width: 42px !important;
        height: 42px !important;
        font-size: 14px !important;
    }
}

/* Ultra-compact for very small screens */
@media (max-width: 480px) {
    #ui-container {
        font-size: 9px;
        padding: 3px 6px;
        gap: 4px;
    }
    
    #ui-container p {
        font-size: 8px;
        padding: 1px 4px;
    }
    
    #ui-container button {
        padding: 3px 6px;
        font-size: 8px;
        min-height: 24px;
        min-width: 50px;    }
    
    #mobile-controls {
        height: 160px;
        padding: 10px 15px 15px 15px;
    }
    
    .dpad-container {
        width: 90px;
        height: 90px;
    }
    
    .dpad-btn {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
    
    .dpad-center {
        width: 28px;
        height: 28px;
    }
    
    .action-dpad {
        width: 120px;
    }
    
    .action-btn {
        width: 34px;
        height: 34px;
        font-size: 11px;
    }
    
    .power-btn {
        width: 26px;
        height: 26px;
        font-size: 12px;
    }
    
    .fire-btn {
        width: 38px !important;
        height: 38px !important;
        font-size: 13px !important;
    }
}

/* Portrait mobile specific adjustments */
@media (max-width: 768px) and (orientation: portrait) {
    #ui-container {
        top: 15px;
        left: 10px;
        right: 10px;
    }
    
    /* Slightly larger controls in portrait since we have more vertical space */
    #mobile-controls {
        height: 200px;
        padding: 20px 25px 25px 25px;
    }
    
    .dpad-container {
        width: 110px;
        height: 110px;
    }
    
    .dpad-btn {
        width: 32px;
        height: 32px;
        font-size: 15px;
    }
    
    .dpad-center {
        width: 32px;
        height: 32px;
    }
    
    .action-dpad {
        width: 130px;
    }
    
    .action-btn {
        width: 38px;
        height: 38px;
        font-size: 13px;
    }
    
    .power-btn {
        width: 30px;
        height: 30px;
        font-size: 14px;
    }
    
    .fire-btn {
        width: 44px !important;
        height: 44px !important;
        font-size: 15px !important;
    }
}

/* Mobile-optimized volume slider improvements */
@media (max-width: 768px) and (pointer: coarse) {
    .volume-slider {
        height: 12px !important;
        touch-action: manipulation;
        -webkit-appearance: none;
        appearance: none;
    }
    
    .volume-slider::-webkit-slider-thumb {
        width: 28px !important;
        height: 28px !important;
        -webkit-appearance: none;
        appearance: none;
        background: linear-gradient(135deg, #00ff41 0%, #00cc33 100%);
        border-radius: 50%;
        border: 3px solid #4a5d23;
        cursor: pointer;
        box-shadow: 0 0 15px rgba(0, 255, 65, 0.6);
        transition: all 0.2s ease;
        position: relative;
        z-index: 1000;
    }
    
    .volume-slider::-moz-range-thumb {
        width: 28px !important;
        height: 28px !important;
        background: linear-gradient(135deg, #00ff41 0%, #00cc33 100%);
        border-radius: 50%;
        border: 3px solid #4a5d23;
        cursor: pointer;
        box-shadow: 0 0 15px rgba(0, 255, 65, 0.6);
        transition: all 0.2s ease;
    }
    
    .slider-container {
        padding: 10px 5px;
        touch-action: manipulation;
    }
      .volume-group {
        margin: 15px 0;
    }
}

/* Multiplayer UI Styles */

/* Multiplayer Menu Overlay */
#multiplayer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 25% 25%, rgba(139, 69, 19, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(74, 93, 35, 0.4) 0%, transparent 50%),
        linear-gradient(135deg, rgba(15, 15, 15, 0.95) 0%, rgba(30, 30, 30, 0.95) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    font-family: 'Orbitron', monospace;
    backdrop-filter: blur(5px);
}

.multiplayer-content {
    background: linear-gradient(135deg, 
        rgba(45, 62, 35, 0.95) 0%, 
        rgba(35, 45, 25, 0.95) 50%, 
        rgba(25, 35, 20, 0.95) 100%);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.8),
        0 0 40px rgba(74, 93, 35, 0.4),
        inset 0 2px 8px rgba(255, 255, 255, 0.1);
    border: 4px solid #4a5d23;
    backdrop-filter: blur(10px);
    max-width: 600px;
    width: 90%;
}

.multiplayer-content h2 {
    color: #00ff41;
    margin-bottom: 30px;
    font-size: 2.5rem;
    text-shadow: 0 0 20px rgba(0, 255, 65, 0.5);
    letter-spacing: 3px;
}

.multiplayer-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.multiplayer-btn {
    background: linear-gradient(135deg, 
        rgba(74, 93, 35, 0.8) 0%, 
        rgba(54, 73, 25, 0.8) 100%);
    border: 3px solid #4a5d23;
    border-radius: 15px;
    padding: 20px;
    color: #00ff41;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Orbitron', monospace;
    backdrop-filter: blur(5px);
}

.multiplayer-btn:hover {
    background: linear-gradient(135deg, 
        rgba(94, 113, 55, 0.9) 0%, 
        rgba(74, 93, 35, 0.9) 100%);
    box-shadow: 0 0 30px rgba(0, 255, 65, 0.4);
    transform: translateY(-2px);
}

.multiplayer-btn h3 {
    margin: 0 0 10px 0;
    font-size: 1.3rem;
}

.multiplayer-btn p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Room Browser Overlay */
#room-browser-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.room-browser-content {
    background: linear-gradient(135deg, 
        rgba(45, 62, 35, 0.95) 0%, 
        rgba(35, 45, 25, 0.95) 50%, 
        rgba(25, 35, 20, 0.95) 100%);
    padding: 30px;
    border-radius: 20px;
    border: 4px solid #4a5d23;
    max-width: 800px;
    width: 90%;
    max-height: 80%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.room-browser-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    color: #00ff41;
}

.room-browser-header h2 {
    margin: 0;
    font-size: 2rem;
}

.rooms-list {
    flex: 1;
    overflow-y: auto;
    max-height: 400px;
}

.room-item {
    background: rgba(74, 93, 35, 0.3);
    border: 2px solid #4a5d23;
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #00ff41;
}

.room-info h4 {
    margin: 0 0 5px 0;
    font-size: 1.2rem;
}

.room-info p {
    margin: 2px 0;
    opacity: 0.8;
}

.join-room-btn {
    background: linear-gradient(135deg, #4a5d23, #3a4d13);
    border: 2px solid #00ff41;
    border-radius: 8px;
    padding: 10px 20px;
    color: #00ff41;
    cursor: pointer;
    font-family: 'Orbitron', monospace;
    transition: all 0.3s ease;
}

.join-room-btn:hover {
    background: linear-gradient(135deg, #5a6d33, #4a5d23);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.4);
}

/* Game Lobby Overlay */
#lobby-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.lobby-content {
    background: linear-gradient(135deg, 
        rgba(45, 62, 35, 0.95) 0%, 
        rgba(35, 45, 25, 0.95) 50%, 
        rgba(25, 35, 20, 0.95) 100%);
    padding: 30px;
    border-radius: 20px;
    border: 4px solid #4a5d23;
    max-width: 900px;
    width: 90%;
    max-height: 85%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    color: #00ff41;
}

.lobby-header {
    text-align: center;
    margin-bottom: 20px;
}

.lobby-header h2 {
    margin: 0 0 10px 0;
    font-size: 2rem;
}

.room-code {
    background: rgba(0, 0, 0, 0.3);
    padding: 10px;
    border-radius: 8px;
    font-family: 'Orbitron', monospace;
    font-size: 1.2rem;
    letter-spacing: 2px;
}

.lobby-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    flex: 1;
    overflow: hidden;
}

.players-section, .chat-section {
    display: flex;
    flex-direction: column;
}

.players-section h3, .chat-section h3 {
    margin: 0 0 15px 0;
    font-size: 1.5rem;
    border-bottom: 2px solid #4a5d23;
    padding-bottom: 5px;
}

.players-list {
    flex: 1;
    overflow-y: auto;
    max-height: 300px;
}

.player-item {
    background: rgba(74, 93, 35, 0.3);
    border: 2px solid #4a5d23;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.player-item.ready {
    border-color: #00ff41;
    background: rgba(0, 255, 65, 0.1);
}

.player-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.player-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.player-name {
    font-size: 1.1rem;
    font-weight: bold;
}

.player-status {
    font-size: 0.9rem;
    opacity: 0.8;
}

.chat-messages {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid #4a5d23;
    border-radius: 10px;
    padding: 15px;
    overflow-y: auto;
    max-height: 200px;
    margin-bottom: 10px;
}

.chat-message {
    margin-bottom: 8px;
    line-height: 1.4;
}

.chat-player {
    font-weight: bold;
    color: #00ff41;
}

.chat-text {
    margin-left: 5px;
}

.chat-input-container {
    display: flex;
    gap: 10px;
}

#chat-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid #4a5d23;
    border-radius: 8px;
    padding: 10px;
    color: #00ff41;
    font-family: 'Rajdhani', monospace;
}

#chat-input::placeholder {
    color: rgba(0, 255, 65, 0.5);
}

#chat-input:focus {
    outline: none;
    border-color: #00ff41;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

.lobby-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid #4a5d23;
}

.btn {
    background: linear-gradient(135deg, #4a5d23, #3a4d13);
    border: 2px solid #00ff41;
    border-radius: 8px;
    padding: 12px 24px;
    color: #00ff41;
    cursor: pointer;
    font-family: 'Orbitron', monospace;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.btn:hover {
    background: linear-gradient(135deg, #5a6d33, #4a5d23);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.4);
    transform: translateY(-2px);
}

.ready-btn.ready {
    background: linear-gradient(135deg, #00ff41, #00cc33);
    color: #000;
}

.start-btn {
    background: linear-gradient(135deg, #ff6b00, #cc5500);
    border-color: #ff6b00;
    color: #fff;
}

.start-btn:hover {
    background: linear-gradient(135deg, #ff8533, #ff6b00);
    box-shadow: 0 0 15px rgba(255, 107, 0, 0.4);
}

.leave-btn {
    background: linear-gradient(135deg, #cc0000, #990000);
    border-color: #ff0000;
    color: #fff;
}

.leave-btn:hover {
    background: linear-gradient(135deg, #ff3333, #cc0000);
    box-shadow: 0 0 15px rgba(255, 0, 0, 0.4);
}

/* Loading and Error States */
.loading, .no-rooms, .error {
    text-align: center;
    padding: 40px;
    color: #00ff41;
    font-size: 1.2rem;
}

.error {
    color: #ff4444;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .multiplayer-content {
        padding: 20px;
        max-width: 95%;
    }
    
    .multiplayer-options {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .lobby-body {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .lobby-controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .btn {
        width: 100%;
    }
    
    .room-browser-content,
    .lobby-content {
        max-width: 95%;
        padding: 20px;
    }
}