:root {
    --bg-color: #050510;
    --lane-color: rgba(0, 243, 255, 0.1);
    --lane-border: rgba(0, 243, 255, 0.2);
    --signal-color: #00f3ff;
    --signal-glow: rgba(0, 243, 255, 0.6);
    --jammer-color: #ff0055;
    --jammer-glow: rgba(255, 0, 85, 0.6);
    --player-color: #ffaa00;
    --text-main: #e0e0ff;
    --ui-overlay: rgba(0, 0, 0, 0.85);
}

* {
    box-sizing: border-box;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

body,
html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    font-family: 'Roboto', sans-serif;
    overflow: hidden;
    color: var(--text-main);
}

#game-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

#game-container canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* ... existing code ... */

/* Simulations */
.canvas-container {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid #334;
    border-radius: 8px;
    padding: 10px;
    margin: 20px 0;
    text-align: center;
}

.canvas-container canvas {
    position: relative;
    /* Override global absolute if any */
    width: 100%;
    height: auto;
    border-radius: 4px;
    background: #050510;
    z-index: auto;
}

#ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    pointer-events: none;
    /* Let clicks pass to canvas if needed, but we have strict screens */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Screens need pointer-events auto to be interactive */
.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--ui-overlay);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
    pointer-events: auto;
    transition: opacity 0.3s ease;
    z-index: 100;
    /* Ensure on top of everything */
}

.screen.hidden {
    opacity: 0 !important;
    pointer-events: none !important;
    visibility: hidden !important;
    display: none !important;
    /* Force layout removal */
}

.screen.active {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
    display: flex;
    /* Restore flex layout */
}

/* Typography */
h1,
h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--signal-color);
    text-shadow: 0 0 10px var(--signal-glow);
    margin-bottom: 20px;
    text-transform: uppercase;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

p {
    font-size: 1.1rem;
    line-height: 1.5;
    max-width: 600px;
    margin: 0 auto 15px auto;
}

.context-text {
    font-size: 0.9rem;
    color: #8888aa;
    font-style: italic;
    margin-top: 20px;
    margin-bottom: 30px;
    max-width: 500px;
}

.credits {
    position: absolute;
    bottom: 20px;
    font-size: 0.8rem;
    opacity: 0.7;
}

/* Buttons */
.neon-btn {
    background: transparent;
    border: 2px solid var(--signal-color);
    color: var(--signal-color);
    padding: 15px 40px;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    cursor: pointer;
    margin: 10px;
    text-transform: uppercase;
    transition: all 0.2s ease;
    box-shadow: 0 0 5px var(--signal-glow);
    border-radius: 5px;
}

.neon-btn:hover {
    background: var(--signal-color);
    color: #000;
    box-shadow: 0 0 20px var(--signal-glow);
    transform: scale(1.05);
}

.neon-btn.secondary {
    border-color: #888;
    color: #ccc;
    box-shadow: none;
    font-size: 1rem;
    padding: 12px 30px;
}

.neon-btn.secondary:hover {
    border-color: #fff;
    color: #fff;
}

/* HUD */
#hud {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent);
    pointer-events: none;
    z-index: 20;
}

.hud-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hud-label {
    font-size: 0.7rem;
    color: #888;
    font-family: 'Orbitron', sans-serif;
}

#score-display,
#level-display {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: #fff;
}

.hearts-container {
    flex-direction: row;
    gap: 5px;
}

.heart {
    width: 20px;
    height: 20px;
    background-color: var(--jammer-color);
    clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 50% 75%, 18% 100%, 0% 38%);
    box-shadow: 0 0 5px var(--jammer-color);
}

.heart.lost {
    background-color: #333;
    box-shadow: none;
}

/* Mobile Controls */
#mobile-controls {
    position: absolute;
    bottom: 200px;
    right: 20px;
    width: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    pointer-events: auto;
    z-index: 100;
}

.control-btn {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(0, 243, 255, 0.1);
    border: 2px solid #00f3ff;
    color: #00f3ff;
    font-size: 2rem;
    backdrop-filter: blur(5px);
    touch-action: manipulation;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.2);
    transition: all 0.1s;
    cursor: pointer;
}

.control-btn:active {
    background: rgba(0, 243, 255, 0.3);
    transform: scale(0.95);
}



/* Legacy capture button hidden */
.capture-btn {
    display: none;
}

/* Game Over specific */
.final-score {
    font-size: 1.5rem;
    margin: 10px 0;
}

.high-score {
    font-size: 1.2rem;
    color: var(--player-color);
    margin-bottom: 30px;
}

/* Tutorial Grid */
.tutorial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.tut-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.icon-tut {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-bottom: 10px;
    border: 2px solid white;
}

.signal-icon {
    background: var(--signal-color);
    box-shadow: 0 0 10px var(--signal-color);
}

.jammer-icon {
    background: var(--jammer-color);
    box-shadow: 0 0 10px var(--jammer-color);
}

.capture-icon {
    border-color: var(--player-color);
    background: transparent;
    display: flex;
    justify-content: center;
    align-items: center;
}

.capture-icon::after {
    content: '';
    width: 20px;
    height: 20px;
    background: var(--player-color);
}

/* Glitch Title Animation */
.glitch-title {
    position: relative;
    color: white;
}

@media (max-width: 600px) {
    h1 {
        font-size: 2rem;
    }

    .tutorial-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .tut-item {
        flex-direction: row;
        text-align: left;
    }

    .icon-tut {
        margin-right: 15px;
        margin-bottom: 0;
        min-width: 50px;
    }

    /* Mobile Controls */
    #mobile-controls {
        position: absolute;
        bottom: 40px;
        right: 20px;
        width: auto;
        display: flex;
        flex-direction: column;
        gap: 20px;
        z-index: 100;
        pointer-events: auto;
    }

    #mobile-controls.hidden {
        display: none;
    }

    .control-btn {
        width: 80px;
        height: 80px;
        border-radius: 50%;
        background: rgba(0, 243, 255, 0.1);
        border: 2px solid #00f3ff;
        color: #00f3ff;
        font-size: 2rem;
        backdrop-filter: blur(5px);
        touch-action: manipulation;
        display: flex;
        justify-content: center;
        align-items: center;
        box-shadow: 0 0 15px rgba(0, 243, 255, 0.2);
        transition: all 0.1s;
        cursor: pointer;
    }

    .control-btn:active {
        background: rgba(0, 243, 255, 0.3);
        transform: scale(0.95);
    }

    /* Hide old styles if any */
    .capture-btn {
        display: none;
    }
}


/* --- INFO PAGE STYLES --- */

.info-page {
    overflow-y: auto;
    /* Enable scrolling */
    background: #0a0a15;
}

.info-nav {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 100;
    width: 100%;
    pointer-events: none;
    /* Let clicks pass */
}

.info-nav a {
    pointer-events: auto;
    text-decoration: none;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.info-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px 20px 20px;
    /* Reduced top/bottom padding */
    color: #e0e0ff;
}

.info-header {
    text-align: center;
    margin-bottom: 50px;
}

.subtitle {
    font-size: 1.5rem;
    color: #ffaa00;
    margin-top: -10px;
    text-transform: none;
    font-family: 'Orbitron', sans-serif;
}

.hero-image-container {
    margin: 30px auto;
    max-width: 100%;
}

.hero-image {
    max-width: 100%;
    border-radius: 10px;
    border: 2px solid var(--signal-color);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.3);
}

.image-caption {
    font-size: 0.9rem;
    color: #888;
    margin-top: 10px;
    font-style: italic;
}

.info-section {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.info-section h3 {
    font-family: 'Orbitron', sans-serif;
    color: var(--signal-color);
    border-bottom: 1px solid rgba(0, 243, 255, 0.3);
    padding-bottom: 10px;
    margin-top: 0;
}

/* Content Layouts */
.content-row {
    display: flex;
    gap: 30px;
    align-items: center;
    margin-top: 20px;
}

.content-row.reverse {
    flex-direction: row-reverse;
}

.text-col {
    flex: 2;
}

.img-col {
    flex: 1;
    display: flex;
    justify-content: center;
}

.side-image {
    max-width: 100%;
    border-radius: 8px;
    border: 1px solid var(--player-color);
    box-shadow: 0 0 10px rgba(255, 170, 0, 0.2);
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.info-card {
    background: rgba(0, 0, 0, 0.3);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.2s;
}

.info-card:hover {
    transform: translateY(-5px);
    border-color: var(--signal-color);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.info-card h4 {
    color: var(--player-color);
    margin: 5px 0 10px 0;
}

.info-card p {
    font-size: 0.95rem;
    color: #ccc;
    font-family: 'Roboto', sans-serif;
}

/* Concept Blocks */
.concept-block {
    margin-bottom: 30px;
}

.concept-block h4 {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.taller-note {
    background: rgba(0, 243, 255, 0.1);
    border-left: 4px solid var(--signal-color);
    padding: 15px;
    margin-top: 15px;
    border-radius: 0 5px 5px 0;
    font-size: 0.95rem;
}

/* Reflection & Bonus */
.reflex-list li {
    margin-bottom: 15px;
    line-height: 1.6;
}

.bonus-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.bonus-item {
    background: rgba(255, 0, 85, 0.1);
    border: 1px solid var(--jammer-color);
    padding: 15px;
    border-radius: 8px;
    color: #ffcccc;
}

.info-footer {
    text-align: center;
    margin-top: 50px;
    color: #666;
    font-size: 0.9rem;
    padding-bottom: 40px;
}

.final-quote {
    color: var(--signal-color);
    font-size: 1.1rem;
    margin-top: 10px;
}

@media (max-width: 700px) {

    .content-row,
    .content-row.reverse {
        flex-direction: column;
    }

    .img-col {
        margin: 20px 0;
    }
}

/* Simulations */
.canvas-container {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid #334;
    border-radius: 8px;
    padding: 10px;
    margin: 20px 0;
    text-align: center;
}

canvas {
    width: 100%;
    border-radius: 4px;
    background: #050510;
}

.sim-instruction {
    font-size: 0.85rem;
    color: #00f3ff;
    margin-top: 10px;
    margin-bottom: 0;
}

/* ... existing code ... */

/* --- NEW WIZARD & LAB STYLES --- */

/* Progress Bar */
.progress-container {
    margin-bottom: 40px;
    padding: 0 20px;
}

.progress-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    background: #333;
    z-index: 0;
    transform: translateY(-50%);
}

.step-dot {
    width: 40px;
    height: 40px;
    background: #1a1a2e;
    border: 2px solid #555;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    color: #888;
    transition: all 0.3s ease;
    cursor: default;
}

.step-dot.active {
    border-color: var(--signal-color);
    color: var(--signal-color);
    box-shadow: 0 0 10px var(--signal-glow);
    background: #0a0a15;
}

.step-dot.completed {
    background: var(--signal-color);
    border-color: var(--signal-color);
    color: #000;
}

/* Wizard Steps */
.step-content {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.step-content.active {
    display: block;
    opacity: 1;
    animation: fadeIn 0.5s forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Wizard Steps Compact */
.step-header {
    text-align: center;
    margin-bottom: 10px;
    /* Reduced from 30 */
}

.step-header h3 {
    font-size: 1.5rem;
    /* Reduced from 1.8 */
    color: var(--signal-color);
    margin: 0;
}

.step-desc {
    font-size: 1rem;
    color: #ccc;
    max-width: 800px;
    margin: 0 auto 15px auto;
    /* Reduced from 30 */
    text-align: center;
    line-height: 1.4;
}

/* Lab Interface */
.lab-container {
    background: rgba(10, 10, 25, 0.8);
    border: 1px solid rgba(0, 243, 255, 0.2);
    border-radius: 12px;
    padding: 15px;
    /* Reduced from 20 */
    max-width: 900px;
    margin: 0 auto;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.lab-visual {
    background: #000;
    border: 1px solid #333;
    border-radius: 6px;
    overflow: hidden;
    position: relative;
    margin-bottom: 20px;
}

.lab-visual canvas {
    display: block;
    width: 100%;
}

.lab-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    align-items: center;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-bottom: 20px;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.control-label {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    color: #aaa;
    text-transform: uppercase;
}

/* Stats Panel */
.stats-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 15px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-box {
    background: rgba(0, 0, 0, 0.4);
    padding: 10px;
    border-radius: 5px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: #fff;
    display: block;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.75rem;
    color: #888;
    text-transform: uppercase;
}

.stat-box.success .stat-value {
    color: var(--signal-color);
}

.stat-box.error .stat-value {
    color: var(--jammer-color);
}

.stat-box.neutral .stat-value {
    color: #ccc;
}

/* Custom Inputs */
input[type=range] {
    -webkit-appearance: none;
    width: 150px;
    height: 6px;
    background: #333;
    border-radius: 3px;
    outline: none;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--signal-color);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--signal-glow);
}

.toggle-btn {
    background: #222;
    border: 1px solid #444;
    color: #888;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    transition: all 0.2s;
}

.toggle-btn.active {
    background: var(--signal-color);
    color: #000;
    border-color: var(--signal-color);
    box-shadow: 0 0 10px var(--signal-glow);
}

.toggle-btn.danger.active {
    background: var(--jammer-color);
    color: #fff;
    border-color: var(--jammer-color);
    box-shadow: 0 0 10px var(--jammer-glow);
}

/* Navigation Buttons */
.step-nav-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-btn {
    padding: 12px 30px;
    border-radius: 5px;
    font-family: 'Orbitron', sans-serif;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    transition: all 0.2s;
}

.nav-btn.next {
    background: var(--signal-color);
    color: #000;
    box-shadow: 0 0 10px var(--signal-glow);
}

.nav-btn.prev {
    background: transparent;
    border: 1px solid #555;
    color: #888;
}

.nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    box-shadow: none;
}

/* Comparison View */
.comparison-view {
    display: flex;
    gap: 20px;
}

.comparison-box {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    padding: 10px;
    border-radius: 5px;
}

.comparison-box h5 {
    margin: 0 0 10px 0;
    text-align: center;
    color: #aaa;
    font-family: 'Orbitron';
}

/* ... existing code ... */

/* --- DETAILED BIO PAGE STYLES --- */

/* Hero Section */
.bio-hero {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 50px;
    border: 1px solid var(--signal-color);
    box-shadow: 0 0 30px rgba(0, 243, 255, 0.15);
}

.bio-hero-img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    object-position: top;
    display: block;
    filter: sepia(20%) contrast(1.1);
}

.bio-hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    padding: 30px;
}

.hero-chip {
    background: var(--signal-color);
    color: #000;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 10px;
    box-shadow: 0 0 10px var(--signal-glow);
}

.bio-hero h2 {
    font-size: 2.5rem;
    color: #fff;
    margin: 0;
    text-shadow: 0 0 10px rgba(0, 243, 255, 0.5);
}

.bio-hero p {
    font-size: 1.2rem;
    color: #ccc;
    max-width: 800px;
    margin-top: 10px;
}

/* Content Blocks */
.info-section.block {
    margin-bottom: 60px;
    padding: 30px;
    background: rgba(10, 10, 20, 0.4);
    border-radius: 10px;
    border-left: 3px solid transparent;
    transition: border-color 0.3s;
}

.info-section.block:hover {
    border-left-color: var(--signal-color);
    background: rgba(10, 10, 25, 0.6);
}

.block-title {
    font-family: 'Orbitron', sans-serif;
    color: var(--signal-color);
    margin-bottom: 20px;
    font-size: 1.4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.tech-diagram {
    width: 100%;
    border-radius: 8px;
    border: 1px solid #333;
    margin: 20px 0;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
}

/* Game Util Buttons */
.util-btns {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: 200;
    pointer-events: auto;
    /* Higher than screens (100) */
}

/* Limit comparison canvas height */
.comparison-box canvas {
    max-height: 120px;
    width: 100%;
    object-fit: contain;
}

.util-btn {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--signal-color);
    color: var(--signal-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    cursor: pointer;
    backdrop-filter: blur(5px);
    transition: all 0.2s;
}

.util-btn:hover {
    background: var(--signal-color);
    color: #000;
}

/* Step Cards for Logic */
.logic-steps {
    display: grid;
    grid-template-columns: 1fr 1fr;
    /* Forced 2 columns */
    gap: 20px;
    margin-top: 20px;
}

@media (max-width: 600px) {
    .logic-steps {
        grid-template-columns: 1fr;
    }
}


.step-card {
    background: rgba(0, 0, 0, 0.3);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #333;
}

.step-num {
    font-family: 'Orbitron';
    font-size: 1.5rem;
    color: #555;
    margin-bottom: 10px;
}

.step-card:hover .step-num {
    color: var(--signal-color);
}

/* Timeline vertical */
.timeline-vertical {
    position: relative;
    padding-left: 20px;
    border-left: 2px solid #333;
    margin-left: 10px;
}

.timeline-event {
    margin-bottom: 30px;
    position: relative;
}

.timeline-event::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 5px;
    width: 10px;
    height: 10px;
    background: var(--signal-color);
    border-radius: 50%;
    box-shadow: 0 0 5px var(--signal-color);
}

.t-date {
    font-family: 'Orbitron';
    color: #fff;
    font-size: 1.1rem;
}

.game-connection {
    background: linear-gradient(135deg, rgba(0, 243, 255, 0.1), rgba(0, 0, 0, 0));
    border: 1px solid var(--signal-color);
}

@media (max-width: 768px) {
    .bio-hero-img {
        height: 300px;
    }

    .bio-hero h2 {
        font-size: 1.8rem;
    }
}
/* Utility Buttons (Sound/Back) */
.util-btns {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 50;
    pointer-events: auto;
}

.util-btns.hidden {
    display: none;
}

.util-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid #555;
    color: #ccc;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s;
}

.util-btn:hover {
    border-color: var(--signal-color);
    color: var(--signal-color);
    background: rgba(0, 243, 255, 0.1);
}