:root {
    /* Primary palette */
    --color-primary: #4fc3f7;
    --color-primary-dark: #29b6f6;
    --color-primary-darker: #03a9f4;
    --color-primary-glow: rgba(79, 195, 247, 0.3);
    --color-primary-glow-strong: rgba(79, 195, 247, 0.6);
    --color-primary-glow-subtle: rgba(79, 195, 247, 0.2);
    --color-primary-shadow: rgba(79, 195, 247, 0.4);

    /* Accent colors */
    --color-accent: #9b59b6;
    --color-accent-glow: rgba(155, 89, 182, 0.3);

    /* Button colors */
    --color-button-orange-start: #ff6b35;
    --color-button-orange-end: #f7931e;
    --color-button-orange-shadow: rgba(255, 107, 53, 0.4);
    --color-button-orange-shadow-strong: rgba(255, 107, 53, 0.6);

    /* Danger / crash */
    --color-danger: #ff0000;
    --color-danger-dark: #cc0000;
    --color-danger-bright: #ff3333;
    --color-danger-glow: rgba(255, 0, 0, 0.4);
    --color-danger-glow-strong: rgba(255, 0, 0, 0.6);

    /* Text colors */
    --color-text: #fff;
    --color-text-muted: rgba(255, 255, 255, 0.5);
    --color-text-subtle: rgba(255, 255, 255, 0.4);
    --color-text-faint: rgba(255, 255, 255, 0.15);
    --color-text-green: #0f0;

    /* Background colors */
    --color-bg-dark: #000;
    --color-bg-overlay: rgba(0, 0, 0, 0.85);
    --color-bg-surface: rgba(255, 255, 255, 0.1);
    --color-bg-surface-hover: rgba(255, 255, 255, 0.15);
    --color-bg-surface-active: rgba(255, 255, 255, 0.2);
    --color-bg-surface-subtle: rgba(255, 255, 255, 0.05);

    /* Border colors */
    --color-border: rgba(255, 255, 255, 0.3);
    --color-border-subtle: rgba(255, 255, 255, 0.2);
    --color-border-strong: rgba(255, 255, 255, 0.5);

    /* Shadow */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.4);
    --shadow-text: 1px 1px 2px #000;

    /* Loading screen gradient */
    --gradient-loading-top: #1a1a2e;
    --gradient-loading-mid: #16213e;
    --gradient-loading-bottom: #0f3460;
    --gradient-loading-sky: #87CEEB;

    /* Gauge colors */
    --color-gauge-face-top: #e8e4dc;
    --color-gauge-face-mid: #d4cfc4;
    --color-gauge-face-bottom: #b8b2a4;
    --color-gauge-tick: #333;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { overflow: hidden; background: var(--color-bg-dark); }
#hud { 
    position: fixed; 
    top: 20px; 
    left: 20px; 
    pointer-events: none; 
    z-index: 100; 
}

/* Hide velocity display on desktop - show gauges only on mobile */
@media (hover: hover) and (pointer: fine) {
    #velocity-display {
        display: none !important;
    }
}

/* Top buttons area - unused now but kept for potential future use */
#top-buttons {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 1001;
    display: none;
    flex-direction: column;
    gap: 10px;
    align-items: flex-end;
}
#kofi-button {
    z-index: 1002;
}
#kofi-button img {
    width: 150px;
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.5));
    transition: transform 0.2s;
}
#kofi-button:hover img {
    transform: scale(1.05);
}

/* Desktop menu button - only show on non-touch devices */
.desktop-menu-button {
    position: fixed;
    top: 20px;
    right: 90px;
    width: 44px;
    height: 44px;
    background: var(--color-bg-surface-hover);
    border: 2px solid var(--color-border-strong);
    border-radius: 10px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    z-index: 1001;
}
.desktop-reset-button {
    position: fixed;
    top: 20px;
    right: 40px;
    width: 44px;
    height: 44px;
    background: rgba(255, 59, 48, 0.2);
    border: 2px solid rgba(255, 59, 48, 0.5);
    border-radius: 10px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    z-index: 1001;
    font-size: 24px;
    color: var(--color-text);
}

/* Show desktop buttons during gameplay */
.desktop-menu-button.visible,
.desktop-reset-button.visible {
    display: flex;
}

.desktop-reset-button:hover {
    background: rgba(255, 59, 48, 0.4);
    border-color: rgba(255, 59, 48, 0.8);
    transform: scale(1.05);
}

/* Show desktop menu button during gameplay */
.desktop-menu-button.visible {
    display: flex;
}

/* Settings button */
.desktop-settings-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: var(--color-bg-surface);
    border: 2px solid var(--color-border);
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    z-index: 1001;
    color: var(--color-text);
}

.desktop-settings-button:hover {
    background: var(--color-primary-glow);
    border-color: var(--color-primary);
    transform: scale(1.05);
}

/* Hide on touch devices */
@media (hover: none) and (pointer: coarse) {
    .desktop-menu-button,
    .desktop-reset-button,
    .desktop-settings-button {
        display: none !important;
    }
}

.desktop-menu-button img {
    width: 28px;
    height: 28px;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.5));
}

.desktop-menu-button:hover {
    background: var(--color-primary-glow);
    border-color: var(--color-primary);
    transform: scale(1.05);
}

.desktop-menu-button:active {
    transform: scale(0.95);
}

#velocity-display {
    color: var(--color-text-green);
    font-family: monospace;
    font-size: 16px;
    text-shadow: var(--shadow-text);
    margin-bottom: 10px;
}

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

.gauge-container {
    width: 100px;
    height: 120px;
    filter: drop-shadow(2px 4px 6px rgba(0,0,0,0.5));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.gauge-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 9px;
    font-family: 'Segoe UI', Arial, sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.gauge {
    width: 100%;
    height: 100px;
}

.gauge-marks line {
    stroke: var(--color-gauge-tick);
    stroke-width: 2;
}

.gauge-marks .major line {
    stroke-width: 3;
}

.gauge-labels text {
    font-family: Arial, sans-serif;
    font-size: 8px;
    fill: var(--color-gauge-tick);
    font-weight: bold;
}

#controls-hint {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: var(--color-accent);
    text-shadow: var(--shadow-text);
    z-index: 100;
}

#controls-hint.visible {
    display: block;
}

@media (max-width: 768px) {
    .gauge-container {
        width: 80px;
        height: 80px;
    }
    .gauge-labels text {
        font-size: 6px;
    }
}

#loading {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(180deg, var(--gradient-loading-top) 0%, var(--gradient-loading-mid) 30%, var(--gradient-loading-bottom) 60%, var(--gradient-loading-sky) 100%);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    font-family: 'Segoe UI', Arial, sans-serif;
}

#loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
}
.loading-clouds {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}
.cloud {
    position: absolute;
    background: var(--color-text-faint);
    border-radius: 50%;
    filter: blur(20px);
}
.cloud:nth-child(1) {
    width: 200px;
    height: 80px;
    top: 15%;
    left: -200px;
    animation: floatCloud 25s linear infinite;
}
.cloud:nth-child(2) {
    width: 300px;
    height: 120px;
    top: 25%;
    left: -300px;
    animation: floatCloud 35s linear infinite;
    animation-delay: -10s;
}
.cloud:nth-child(3) {
    width: 150px;
    height: 60px;
    top: 10%;
    left: -150px;
    animation: floatCloud 20s linear infinite;
    animation-delay: -5s;
}
.cloud:nth-child(4) {
    width: 250px;
    height: 100px;
    top: 35%;
    left: -250px;
    animation: floatCloud 30s linear infinite;
    animation-delay: -15s;
}
.cloud:nth-child(5) {
    width: 180px;
    height: 70px;
    top: 20%;
    left: -180px;
    animation: floatCloud 28s linear infinite;
    animation-delay: -8s;
}
@keyframes floatCloud {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(calc(100vw + 400px));
    }
}
#loading-logo {
    width: 400px;
    margin-bottom: 0;
    filter: drop-shadow(0 0 20px rgba(79, 195, 247, 0.4));
    animation: pulse 2s ease-in-out infinite;
}

@media (max-width: 768px) {
    #loading-logo {
        width: 65vw;
        max-width: 280px;
        min-width: 180px;
    }
}

@media (hover: none) and (pointer: coarse) and (orientation: landscape) {
    #loading {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        padding: 10px;
    }
    #loading-content {
        flex-direction: column;
        align-items: center;
        margin-top: 0;
        margin-left: 20px;
        gap: 0;
    }
    #loading-logo {
        display: none !important;
    }
}

@media (max-width: 768px) {
    #loading {
        padding-top: 10px;
    }
    #loading-text {
        font-size: 16px;
    }
    #selection-area {
        width: 95%;
        max-width: none;
        padding: 12px 14px;
    }
    .selection-row {
        flex-wrap: nowrap;
        gap: 8px;
    }
    .selection-row label {
        font-size: 13px;
        min-width: 70px;
        flex-shrink: 0;
    }
    .selection-row input[type="text"] {
        flex: 1;
        min-width: 80px;
        padding: 8px 10px;
        font-size: 14px;
    }
    .dice-btn {
        width: 26px;
        height: 26px;
        font-size: 16px;
    }
    .color-selector-with-arrows {
        gap: 4px;
    }
    .color-arrow-btn {
        width: 22px;
        height: 26px;
        font-size: 12px;
    }
    .selected-color-display {
        width: 36px;
        height: 26px;
    }
    #loading-bar {
        width: 70%;
        max-width: 280px;
        height: 18px;
        margin-top: 12px;
    }
    #start-button {
        margin-top: 20px;
        padding: 14px 36px;
        font-size: 20px;
    }
    #loading-tagline {
        font-size: 11px;
        bottom: 15px;
        padding: 0 20px;
    }
    #loading-version {
        font-size: 11px;
    }
    #loading-top-left {
        top: 10px;
        left: 10px;
    }
}

@supports (padding-bottom: env(safe-area-inset-bottom)) {
    @media (max-width: 768px) {
        #loading-tagline {
            bottom: calc(15px + env(safe-area-inset-bottom));
        }
        #loading-version {
            bottom: calc(15px + env(safe-area-inset-bottom));
        }
    }
    @media (max-width: 768px) and (orientation: landscape) {
        #loading-tagline {
            bottom: calc(10px + env(safe-area-inset-bottom));
        }
        #loading-version {
            bottom: calc(10px + env(safe-area-inset-bottom));
        }
    }
    #loading-links {
        gap: 8px;
    }
    #asset-viewer-button {
        font-size: 11px;
        padding: 5px 10px;
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.02); opacity: 0.9; }
}

#start-button {
    margin-top: 50px;
    padding: 18px 50px;
    font-size: 24px;
    font-weight: bold;
    font-family: 'Segoe UI', Arial, sans-serif;
    color: var(--color-text);
    background: linear-gradient(135deg, var(--color-button-orange-start) 0%, var(--color-button-orange-end) 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 6px 20px var(--color-button-orange-shadow);
    transition: transform 0.2s, box-shadow 0.2s;
    animation: pulse 2s ease-in-out infinite;
}
#start-button:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px var(--color-button-orange-shadow-strong);
}

#loading {
    transition: opacity 0.8s ease-in-out;
}
#loading.hidden {
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
}
#loading-bar {
    width: 300px;
    height: 20px;
    background: var(--color-bg-surface);
    border-radius: 10px;
    margin-top: 4px;
    overflow: visible;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border-subtle);
}
#loading-bar-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, var(--color-primary-darker) 100%);
    border-radius: 10px;
    transition: width 0.3s ease-out;
    box-shadow: 0 0 10px var(--color-primary-glow-strong), 0 0 20px var(--color-primary-glow);
}
#loading-plane {
    position: absolute;
    top: 50%;
    left: 0%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    transition: left 0.3s ease-out;
    filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.4));
}
#loading-plane img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
#loading-text {
    color: var(--color-text);
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 500;
}
#selection-area {
    background: var(--color-bg-surface);
    border-radius: 12px;
    padding: 16px 20px;
    backdrop-filter: blur(10px);
}
.selection-row {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
}
.selection-row:last-child {
    margin-bottom: 0;
}
.selection-row label {
    color: var(--color-text);
    font-size: 14px;
    font-weight: 600;
    margin-right: 12px;
    min-width: 90px;
}
.selection-row input[type="text"] {
    flex: 1;
    padding: 10px 14px;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-bg-surface);
    color: var(--color-text);
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s;
}
.selection-row input[type="text"]::placeholder {
    color: var(--color-text-muted);
}
.selection-row input[type="text"]:focus {
    border-color: var(--color-primary);
}
.dice-btn {
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    font-size: 22px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
    flex-shrink: 0;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.3));
}
.dice-btn:hover {
    transform: scale(1.15);
    filter: drop-shadow(0 2px 4px var(--color-primary-shadow));
}
.color-selector-with-arrows {
    display: flex;
    align-items: center;
    gap: 8px;
}
.color-arrow-btn {
    width: 28px;
    height: 32px;
    border: 2px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-bg-surface);
    color: var(--color-text);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}
.color-arrow-btn:hover {
    background: var(--color-primary-glow);
    border-color: var(--color-primary);
    transform: scale(1.05);
}
.selected-color-display {
    width: 50px;
    height: 36px;
    border: 2px solid var(--color-border);
    border-radius: 6px;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
}
.selected-color-display.main {
    border-color: var(--color-primary);
}
#loading-bottom-left {
    position: absolute;
    bottom: 20px;
    left: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
#loading-bottom-left #kofi-button img {
    width: 150px;
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.5));
}
#loading-bottom-left #kofi-button:hover img {
    transform: scale(1.05);
}
#loading-top-left {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
#loading-alarm {
    color: var(--color-text-muted);
    font-size: 11px;
    text-align: left;
    line-height: 1.4;
    font-style: italic;
}
#loading-tagline {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: #9b59b6;
    font-size: 12px;
    font-style: italic;
    text-align: center;
    font-family: 'Segoe UI', Arial, sans-serif;
}
#loading-links {
    display: flex;
    gap: 12px;
    align-items: center;
}
#asset-viewer-button {
    color: var(--color-text-muted);
    font-size: 12px;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 4px;
    background: var(--color-bg-surface-subtle);
    transition: all 0.2s;
    font-family: 'Segoe UI', Arial, sans-serif;
    align-self: flex-start;
}
#asset-viewer-button:hover {
    background: var(--color-primary-glow-subtle);
    color: var(--color-primary);
}
#server-button {
    font-size: 16px;
    text-decoration: none;
    transition: transform 0.2s;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.3));
}
#server-button:hover {
    transform: scale(1.15);
    filter: drop-shadow(0 2px 4px var(--color-primary-shadow));
}

#loading-version {
    position: absolute;
    bottom: 72px;
    right: 16px;
    color: var(--color-accent);
    font-size: 12px;
    font-family: monospace;
}
#loading.hidden {
    opacity: 0;
    transition: opacity 0.5s ease-out;
    pointer-events: none;
    visibility: hidden;
}

/* Crash Message Styling */
#crash-message {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: var(--color-bg-overlay);
    border: 3px solid var(--color-danger);
    border-radius: 20px;
    padding: 40px 60px;
    text-align: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

#crash-message.visible {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
    pointer-events: auto;
}

.crash-text {
    color: var(--color-danger);
    font-size: 72px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 8px;
    text-shadow: 0 0 20px var(--color-danger-glow-strong), 0 0 40px var(--color-danger-glow);
    animation: crashPulse 1.5s ease-in-out infinite;
    margin-bottom: 20px;
}

@keyframes crashPulse {
    0%, 100% { transform: scale(1); text-shadow: 0 0 20px var(--color-danger-glow-strong), 0 0 40px var(--color-danger-glow); }
    50% { transform: scale(1.05); text-shadow: 0 0 30px var(--color-danger), 0 0 60px var(--color-danger-glow-strong); }
}

#reset-btn {
    display: none;
    background: linear-gradient(135deg, var(--color-danger) 0%, var(--color-danger-dark) 100%);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 24px;
    font-weight: bold;
    border-radius: 10px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 3px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--color-danger-glow);
}

/* Reset button always shows when inside visible crash-message */
#crash-message.visible #reset-btn {
    display: inline-block;
}

/* Also show when explicitly set to visible */
#reset-btn.visible {
    display: inline-block;
}

#reset-btn:hover {
    background: linear-gradient(135deg, var(--color-danger-bright) 0%, var(--color-danger-dark) 100%);
    transform: scale(1.05);
    box-shadow: 0 6px 20px var(--color-danger-glow-strong);
}

/* Mobile Touch Controls - Only visible on touch devices */
#touch-controls {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 150;
    touch-action: none;
}

#touch-controls.visible {
    display: block !important;
}

.touch-zone {
    position: absolute;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: var(--color-bg-surface);
    border: 2px solid var(--color-border);
    pointer-events: auto;
    touch-action: none;
}

#left-stick-zone {
    left: 20px;
    bottom: 100px;
}

#right-stick-zone {
    right: 20px;
    bottom: 20px;
}

.touch-stick {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-primary-glow-strong);
    border: 2px solid rgba(255, 255, 255, 0.8);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 20px var(--color-primary-glow);
    transition: none;
}

.touch-label {
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
}

.touch-button {
    position: absolute;
    padding: 15px 25px;
    background: var(--color-bg-surface-hover);
    border: 2px solid var(--color-border-subtle);
    border-radius: 10px;
    color: var(--color-text);
    font-size: 14px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    pointer-events: auto;
    touch-action: none;
    user-select: none;
    transition: all 0.1s ease;
}

.touch-button:active {
    background: var(--color-primary-glow);
    border-color: var(--color-primary);
    transform: scale(0.95);
}

#brake-btn {
    right: 180px;
    bottom: 20px;
}

#reset-btn-touch {
    position: absolute;
    right: 20px;
    top: 20px;
    left: auto;
    width: 44px;
    height: 44px;
    padding: 0;
    font-size: 24px;
    background: rgba(255, 59, 48, 0.2);
    border: 2px solid rgba(255, 59, 48, 0.5);
    border-radius: 10px;
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    z-index: 100;
    pointer-events: auto;
    touch-action: none;
}

#reset-btn-touch:hover {
    background: rgba(255, 59, 48, 0.4);
    border-color: rgba(255, 59, 48, 0.8);
    transform: scale(1.05);
}

#reset-btn-touch:active {
    background: rgba(255, 59, 48, 0.5);
    transform: scale(0.95);
}

#reset-btn-touch.reset {
    background: rgba(255, 59, 48, 0.3);
    border-color: rgba(255, 59, 48, 0.7);
}

#reset-btn-touch.reset:active {
    background: rgba(255, 59, 48, 0.5);
    transform: scale(0.95);
}

/* Mobile settings button */
.settings-button-touch {
    position: absolute;
    top: 20px;
    right: 77px;
    width: 44px;
    height: 44px;
    background: var(--color-bg-surface-hover);
    border: 2px solid var(--color-border-strong);
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
    touch-action: none;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    z-index: 100;
    color: var(--color-text);
}

.settings-button-touch:hover,
.settings-button-touch:active {
    background: var(--color-primary-glow);
    border-color: var(--color-primary);
    transform: scale(1.05);
}

/* Menu/Back button - hidden during loading */
.menu-button {
    position: absolute;
    top: 20px;
    right: 134px;
    width: 44px;
    height: 44px;
    background: var(--color-bg-surface-hover);
    border: 2px solid var(--color-border-strong);
    border-radius: 10px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
    touch-action: none;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    z-index: 100;
}

/* Show menu button when loading is hidden */
#loading.hidden .menu-button,
.menu-button.visible {
    display: flex;
}

.menu-button img {
    width: 28px;
    height: 28px;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.5));
}

.menu-button:hover {
    background: var(--color-primary-glow);
    border-color: var(--color-primary);
    transform: scale(1.05);
}

.menu-button:active {
    transform: scale(0.95);
    background: var(--color-primary-glow-strong);
}

@media (max-width: 768px) {
    .menu-button {
        right: 134px;
        width: 48px;
        height: 48px;
    }
    .menu-button img {
        width: 32px;
        height: 32px;
    }
    .settings-button-touch {
        right: 77px;
        width: 48px;
        height: 48px;
    }
    #reset-btn-touch {
        right: 20px;
        width: 48px;
        height: 48px;
    }
}

/* Throttle+Rudder Joystick (square zone on left side) */
.throttle-rudder-container {
    position: absolute;
    left: 20px;
    bottom: 20px;
    width: 140px;
    height: 140px;
    pointer-events: auto;
    touch-action: none;
}

.throttle-rudder-zone-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: var(--color-bg-surface);
    border: 2px solid var(--color-border);
    border-radius: 15px;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.3);
}

.throttle-rudder-stick {
    position: absolute;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border: 2px solid rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 15px var(--color-primary-glow-strong);
    transition: left 0.3s ease-out;
}

.throttle-rudder-stick.at-boundary {
    border-color: var(--color-primary-glow);
    box-shadow: 0 0 20px var(--color-primary-glow-strong), 0 0 10px var(--color-primary);
}

/* Yaw Controls */
.yaw-container {
    position: absolute;
    right: 20px;
    bottom: 20px;
    display: flex;
    gap: 15px;
    pointer-events: auto;
}

.yaw-button {
    width: 60px;
    height: 60px;
    background: var(--color-bg-surface-hover);
    border: 2px solid var(--color-border-subtle);
    border-radius: 50%;
    color: var(--color-text);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
    touch-action: none;
    user-select: none;
    transition: all 0.1s ease;
}

.yaw-button:active {
    background: rgba(79, 195, 247, 0.4);
    border-color: rgba(79, 195, 247, 0.8);
    transform: scale(0.95);
}

/* Desktop controls hint - hide on touch */
@media (hover: none) and (pointer: coarse) {
    #controls-hint {
        display: none !important;
    }
}

/* Mobile Touch Controls - Larger in landscape */
@media (max-width: 768px) and (orientation: landscape) {
    .touch-zone {
        width: 180px;
        height: 180px;
        bottom: 40px !important;
    }
    
    .touch-stick {
        width: 80px;
        height: 80px;
    }
    
    /* Throttle+Rudder Joystick in landscape */
    .throttle-rudder-container {
        width: 180px;
        height: 180px;
        bottom: 40px;
    }
    
    .throttle-rudder-zone-bg {
        width: 160px;
        height: 160px;
    }
    
    .throttle-rudder-stick {
        width: 70px;
        height: 70px;
    }
    
    .yaw-button {
        width: 80px;
        height: 80px;
        font-size: 28px;
    }
    
    .yaw-container {
        bottom: 30px;
    }
    
    .touch-button {
        padding: 18px 30px;
        font-size: 16px;
    }
    
    #reset-btn-touch {
        width: 48px;
        height: 48px;
        font-size: 28px;
    }
}

/* Color Picker Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 3000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content.color-picker-container {
    background: var(--gradient-loading-top);
    border-radius: 16px;
    padding: 30px;
    min-width: 260px;
    max-width: 90%;
    box-shadow: 0 8px 32px var(--shadow-md), 0 0 40px var(--color-primary-glow-subtle);
    position: relative;
}

.color-picker-layout {
    display: flex;
    align-items: center;
    gap: 24px;
}

#color-picker-preview {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    border: 3px solid var(--color-border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    flex-shrink: 0;
}

.modal-content.color-picker-container {
    background: var(--gradient-loading-top);
    border-radius: 16px;
    padding: 30px;
    min-width: 260px;
    max-width: 90%;
    box-shadow: 0 8px 32px var(--shadow-md), 0 0 40px var(--color-primary-glow-subtle);
    position: relative;
}

.rgb-color-picker {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.slider-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.slider-row label {
    font-weight: bold;
    min-width: 20px;
    text-align: center;
    font-size: 14px;
}

.slider-row input[type="range"] {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    background: #2a2a4e;
    outline: none;
    -webkit-appearance: none;
}

.slider-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.slider-row input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
    border: none;
}

.slider-row span {
    font-family: 'Courier New', monospace;
    font-size: 13px;
    min-width: 40px;
    text-align: right;
    font-weight: bold;
}

.color-preview-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--color-bg-surface-subtle);
    border-radius: 10px;
}

.color-preview-container.centered {
    margin-top: 10px;
}

#color-picker-preview {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    border: 3px solid var(--color-border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.color-picker-ok-btn {
    display: block;
    margin: 24px auto 0;
    padding: 14px 40px;
    font-size: 18px;
    font-weight: bold;
    font-family: 'Segoe UI', Arial, sans-serif;
    color: var(--color-text);
    background: linear-gradient(135deg, var(--color-button-orange-start) 0%, var(--color-button-orange-end) 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 6px 20px var(--color-button-orange-shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.color-picker-ok-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px var(--color-button-orange-shadow-strong);
}

/* Mobile responsive */
@media (max-width: 768px) {
    .modal-content.color-picker-container {
        padding: 25px 20px;
        min-width: 90%;
    }
    
    #color-picker-preview {
        width: 50px;
        height: 50px;
    }
    
    #hex-display {
        font-size: 16px;
    }
}

/* Settings Modal */
.settings-container {
    background: var(--gradient-loading-top);
    border-radius: 16px;
    padding: 30px 35px 35px;
    width: 420px;
    max-width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    overflow-x: hidden;
    box-shadow: 0 8px 32px var(--shadow-md), 0 0 40px var(--color-primary-glow-subtle);
    position: relative;
}

/* Custom scrollbar for settings */
.settings-container::-webkit-scrollbar {
    width: 8px;
}
.settings-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}
.settings-container::-webkit-scrollbar-thumb {
    background: var(--color-border-strong);
    border-radius: 4px;
}
.settings-container::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

.settings-close-btn {
    position: absolute;
    top: 12px;
    right: 16px;
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 28px;
    cursor: pointer;
    transition: all 0.2s;
    line-height: 1;
    padding: 4px 8px;
}

.settings-close-btn:hover {
    color: var(--color-primary);
    transform: scale(1.1);
}

/* Color Swatch Picker in Settings */
.color-swatch-picker {
    display: flex;
    align-items: center;
    gap: 10px;
}

.color-swatch-btn {
    width: 40px;
    height: 28px;
    border-radius: 6px;
    border: 2px solid var(--color-border);
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.color-swatch-btn:hover {
    transform: scale(1.1);
    border-color: var(--color-primary);
}

.color-hex-display {
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: var(--color-text-muted);
}

/* Environment Color Picker Modal */
.modal-content.environment-color-picker-container {
    background: var(--gradient-loading-top);
    border-radius: 16px;
    padding: 25px;
    min-width: 280px;
    max-width: 90%;
    box-shadow: 0 8px 32px var(--shadow-md), 0 0 40px var(--color-primary-glow-subtle);
    position: relative;
}

.environment-color-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

#environment-color-title {
    color: var(--color-text);
    font-size: 16px;
    font-weight: 600;
}

.environment-color-preview {
    width: 100%;
    height: 60px;
    border-radius: 10px;
    border: 2px solid var(--color-border);
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.transparency-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 15px 0;
}

.transparency-row label {
    font-weight: bold;
    min-width: 60px;
    font-size: 13px;
}

.transparency-row input[type="range"] {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    background: #2a2a4e;
    outline: none;
    -webkit-appearance: none;
}

.transparency-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.transparency-row input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.transparency-row span {
    min-width: 40px;
    font-size: 13px;
    text-align: right;
}

.settings-title {
    color: var(--color-text);
    font-size: 22px;
    font-weight: bold;
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0 0 24px;
    padding-right: 40px;
}

.settings-section {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-text-faint);
}

.settings-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.settings-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.settings-section-title {
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
}

.settings-section.disabled .settings-section-title {
    color: var(--color-primary-glow-subtle);
}

.stars-header {
    margin-top: 16px;
}

.star-colors-panel {
    display: none;
}

.star-colors-panel.visible {
    display: block;
}

.settings-toggle {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 22px;
    cursor: pointer;
}

.settings-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg-surface-active);
    border-radius: 22px;
    transition: all 0.3s ease;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: var(--color-text);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.settings-toggle input:checked + .toggle-slider {
    background-color: var(--color-primary);
}

.settings-toggle input:checked + .toggle-slider:before {
    transform: translateX(18px);
}

.settings-section.disabled .setting-row {
    opacity: 0.4;
    pointer-events: none;
}

.settings-section.disabled .setting-value {
    color: var(--color-text-subtle);
}

.settings-section.disabled .setting-control input[type="range"] {
    filter: grayscale(100%);
    opacity: 0.5;
}

.setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.setting-row:last-child {
    margin-bottom: 0;
}

.setting-row label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    font-family: 'Segoe UI', Arial, sans-serif;
    min-width: 100px;
}

.setting-row .settings-toggle {
    min-width: auto;
    flex-shrink: 0;
}

.setting-control {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    justify-content: flex-end;
}

.setting-control input[type="range"] {
    width: 160px;
    height: 6px;
    border-radius: 3px;
    background: #2a2a4e;
    outline: none;
    -webkit-appearance: none;
}

.setting-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #4fc3f7;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.setting-control input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #4fc3f7;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
    border: none;
}

.setting-value {
    color: #fff;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    font-weight: bold;
    min-width: 50px;
    text-align: right;
}

.setting-control select.setting-select {
    background: #2a2a4e;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 13px;
    font-family: 'Segoe UI', Arial, sans-serif;
    cursor: pointer;
    outline: none;
    min-width: 160px;
}

.setting-control select.setting-select:hover {
    border-color: #4fc3f7;
}

.setting-control select.setting-select:focus {
    border-color: #4fc3f7;
    box-shadow: 0 0 0 2px rgba(79, 195, 247, 0.25);
}

.setting-control select.setting-select option {
    background: #1e1e3a;
    color: #fff;
}

/* Sun Position Widget */
.sun-position-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.sun-position-widget {
    display: flex;
    gap: 20px;
    align-items: center;
    width: 100%;
}

.sun-position-container {
    position: relative;
    width: 140px;
    height: 140px;
    background: linear-gradient(180deg, 
        rgba(135, 206, 235, 0.3) 0%, 
        rgba(255, 200, 100, 0.2) 60%,
        rgba(255, 150, 80, 0.3) 100%);
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    cursor: crosshair;
    overflow: hidden;
}

.horizon-circle {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 50%;
    border-top: 1px dashed rgba(255, 255, 255, 0.4);
    border-radius: 0 0 50% 50%;
}

.zenith-marker {
    position: absolute;
    top: 4px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 10px;
    color: rgba(255, 255, 255, 0.6);
    font-weight: bold;
}

.compass-label {
    position: absolute;
    font-size: 10px;
    color: rgba(255, 255, 255, 0.5);
    font-weight: bold;
}

.compass-label.north {
    top: 50%;
    left: 4px;
    transform: translateY(-50%);
}

.compass-label.east {
    top: 4px;
    left: 50%;
    transform: translateX(-50%);
}

.compass-label.south {
    top: 50%;
    right: 4px;
    transform: translateY(-50%);
}

.compass-label.west {
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
}

.sun-handle {
    position: absolute;
    width: 16px;
    height: 16px;
    background: radial-gradient(circle, #ffff99 0%, #ffcc00 50%, #ff9900 100%);
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 0 10px rgba(255, 200, 0, 0.8), 0 0 20px rgba(255, 200, 0, 0.4);
    cursor: grab;
    transform: translate(-50%, -50%);
    z-index: 10;
}

.sun-handle:active {
    cursor: grabbing;
    transform: translate(-50%, -50%) scale(1.2);
}

.sun-position-info {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.sun-position-info span {
    color: #4fc3f7;
    font-weight: 600;
}

.sun-time-hint {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
}

/* Sun Position Widget */
.sun-position-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

#sun-color-swatches .color-swatch {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

#sun-color-swatches .color-swatch:hover {
    transform: scale(1.1);
    border-color: rgba(255, 255, 255, 0.5);
}

#sun-color-swatches .color-swatch.active {
    border-color: #4fc3f7;
    box-shadow: 0 0 0 2px rgba(79, 195, 247, 0.3);
}

/* Mobile web: add top padding to push UI widgets down */
@media (max-width: 768px) and (hover: none) and (pointer: coarse) {
    #hud {
        top: 40px;
    }
    .desktop-menu-button {
        top: 40px;
    }
    .desktop-reset-button {
        top: 40px;
    }
    .settings-button-touch {
        top: 40px;
    }
    .menu-button {
        top: 40px;
    }
    #reset-btn-touch {
        top: 40px;
    }
}

/* Force GPU compositing for WebGL canvas layer */
canvas {
    will-change: transform;
    transform: translate3d(0, 0, 0);
    contain: paint;
}