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

html {
    background: #000000;
}

body {
    min-height: 100vh;
    color: #f5f5f5;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    -webkit-font-smoothing: antialiased;
}

.hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    position: relative;
}

.hero-stuff {
    width: 100%;
    max-width: 1000px;
    min-height: 50vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 4rem;
}

.hero h1 {
    font-size: clamp(3.5rem, 9vw, 7.5rem);
    font-weight: 900;
    background: linear-gradient(180deg, #ffffff 40%, #888888 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: left;
    margin-top: auto;
}

.hero p {
    max-width: 640px;
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: #a0a0a0;
    font-weight: 400;
    line-height: 1.5;
    border-left: 2px solid #333;
    padding-left: 1.5rem;
}

/* --- Demo Section --- */
.demo {
    min-height: 80vh;
    max-width: 1000px;
    margin: 0 auto;
    padding: 8rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.5rem;
}

.demo h3 {
    color: #666;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
}

.demo h4 {
    color: #444;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 500;
}

.demo h2 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    background: linear-gradient(90deg, #ffffff, #a0a0a0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0.5rem 0;
}

.demo p {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: #888;
    max-width: 700px;
}

.demo p:last-of-type {
    color: #ffffff;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    border: 1px dashed #333;
    display: inline-block;
    align-self: flex-start;
    margin-top: 1.5rem;
}

#keyboard-overlay {
    position: fixed;
    inset: auto; 
    bottom: 2rem;
    right: 2rem;
    
    pointer-events: none;
    opacity: 0;
    z-index: 100;
    backdrop-filter: none; 
    
    transition: opacity 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

#keyboard-overlay.visible {
    opacity: 1;
}

.keyboard {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 1.25rem;
    border-radius: 18px;
    background: rgba(10, 10, 10, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.05);
    
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    
    transform: scale(0.9) translateY(10px);
    transform-origin: bottom right;
    transition: transform 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

#keyboard-overlay.visible .keyboard {
    transform: scale(1) translateY(0);
}

.keyboard-row {
    display: flex;
    gap: 0.35rem;
}

.row-offset-1 {
    margin-left: 1.25rem;
}

.row-offset-2 {
    margin-left: 2.5rem;
}
.key {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.03);
    color: rgba(255, 255, 255, 0.3);
    
    font-size: 0.8rem;
    font-weight: 700;
    transition: all 100ms cubic-bezier(0.16, 1, 0.3, 1);
}
.key.active {
    background: #ffffff;
    color: #000000;
    border-color: #ffffff;
    transform: scale(0.92);
    box-shadow: 
        0 0 15px rgba(255, 255, 255, 0.5),
        0 0 30px rgba(255, 255, 255, 0.2);
}

.sandbox-controls {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
}

.control-btn {
    background: rgba(255,255,255,0.05);
    color: #fff;
    border: 1px solid #333;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    pointer-events: auto;
    transition: all 0.2s ease;
}

.control-btn.enabled {
    background: #fff;
    color: #000;
    border-color: #fff;
    box-shadow: 0 0 15px rgba(255,255,255,0.3);
}

.audio-box-container {
    width: 100%;
    height: 120px;
    background: #111;
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #222;
    position: relative;
}

#audio-visualizer {
    width: 4px;
    height: 40%;
    background: #ffffff;
    border-radius: 99px; 
    
    box-shadow: 0 0 20px #ffffff;
    transition: transform 100ms ease-out, width 100ms ease-out, background-color 200ms ease;
    transform: scaleX(1);
}

.audio-box-container.playing #audio-visualizer {
    width: 80%;
    background: linear-gradient(90deg, #333, #fff, #333);
}
.hardware-mapping {
    min-height: 100vh;
    max-width: 1000px;
    margin: 0 auto;
    padding: 8rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.5rem;
}

.hardware-mapping h3 {
    color: #666;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
}

.hardware-mapping h2 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    background: linear-gradient(90deg, #ffffff, #a0a0a0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hardware-mapping p {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: #888;
    max-width: 700px;
}

.interface-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 3rem;
}

.control-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.row-badge {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #666;
}

.toggle-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 0.75rem;
}

.toggle-item {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 12px;
    padding: 1rem 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    color: #444;
    transition: all 0.2s ease;
}

.toggle-item span {
    font-size: 0.9rem;
}

.switch {
    width: 24px;
    height: 12px;
    background: #222;
    border-radius: 99px;
    position: relative;
    transition: background 0.2s ease;
}

.switch::before {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: #555;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.toggle-item.toggled {
    color: #fff;
    border-color: rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.05);
}

.toggle-item.toggled .switch {
    background: #fff;
}

.toggle-item.toggled .switch::before {
    left: 14px;
    background: #000;
}

.slider-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.slider-track {
    width: 100%;
    height: 12px;
    background: #111;
    border-radius: 99px;
    border: 1px solid rgba(255,255,255,0.05);
    overflow: hidden;
}

.slider-fill {
    width: 0%;
    height: 100%;
    background: #fff;
    box-shadow: 0 0 15px rgba(255,255,255,0.5);
    transition: width 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    padding: 0 0.5rem;
    color: #555;
    font-size: 0.85rem;
    font-weight: 700;
}

.slider-labels .active-label {
    color: #fff;
    text-shadow: 0 0 10px rgba(255,255,255,0.5);
}
.dial-wrapper {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 1rem;
}

.dial {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: #111;
    border: 2px solid rgba(255, 255, 255, 0.1);
    position: relative;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
    transition: transform 50ms linear; 
}

.dial-indicator {
    width: 6px;
    height: 20px;
    background: #fff;
    border-radius: 99px;
    position: absolute;
    top: 6px;
    left: calc(50% - 3px);
    box-shadow: 0 0 10px rgba(255,255,255,0.5);
}

.dial-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    font-variant-numeric: tabular-nums;
}

.hazard-barrier {
    width: 100%;
    overflow: hidden;
    padding: 3.5rem 0; 
    background: #000000;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 10;
}

.tape-track {
    width: 100vw;
    height: 52px;
    display: flex;
    align-items: center;
    white-space: nowrap;
    overflow: hidden;
    position: relative;
    background: repeating-linear-gradient(
        -45deg,
        #ffffff,
        #ffffff 20px,
        #000000 20px,
        #000000 40px
    );
    background-size: 56px 56px;
    
    border-top: 2px solid #ffffff;
    border-bottom: 2px solid #ffffff;
    
    transform: rotate(-1.2deg) scale(1.02); 
    animation: slideStripes 4s linear infinite;
}

.tape-text {
    font-size: 1.1rem;
    font-weight: 900;
    font-family: 'Inter', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #ffffff;
    background: #000000; /* Dark canvas masking behind text blocks */
    padding: 4px 15px;   /* Added horizontal padding to frame words over moving gaps */
    display: inline-block;
    
    /* Marquee Text Loop Speed Configuration */
    animation: marqueeLoop 20s linear infinite;
}

/* --- Combined Kinetic Keyframe Systems --- */

/* 1. Moves the foreground instruction text right-to-left */
@keyframes marqueeLoop {
    0% {
        transform: translate3d(0, 0, 0);
    }
    100% {
        transform: translate3d(-100%, 0, 0);
    }
}

/* 2. Shifts the background slash graphics continually to simulate conveyor movement */
@keyframes slideStripes {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 56px 0; /* Shifts precisely by its structural loop width */
    }
}