:root {
    /* Brutalist Hardware Palette */
    --bg-color: #E2E2DF;
    --chassis-color: #F4F4F0;
    --text-main: #111111;
    --text-muted: #555555;
    --accent: #FF3F00;
    --accent-hover: #FF5A26;
    --canvas-bg: #0C0C0C;

    /* Structural Elements */
    --border-thickness: 3px;
    --border: var(--border-thickness) solid var(--text-main);
    --shadow: 6px 6px 0px var(--text-main);
    --shadow-hover: 2px 2px 0px var(--text-main);
    --radius: 0px;
    /* Brutally square */

    /* Typography */
    --font-heading: 'Syne', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-mono);
    margin: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    background-image: radial-gradient(#aaa 1px, transparent 1px);
    background-size: 20px 20px;
}

/* Base structural chassis */
.hardware-chassis {
    background-color: var(--chassis-color);
    border: var(--border);
    box-shadow: 16px 16px 0px rgba(17, 17, 17, 0.1);
    width: 100%;
    max-width: 1200px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: relative;
}

/* Header & Branding */
.branding {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-bottom: var(--border);
    padding-bottom: 1rem;
}

.branding h1 {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 3.5rem;
    line-height: 0.9;
    margin: 0;
    letter-spacing: -0.05em;
    text-transform: uppercase;
}

.badge {
    background-color: var(--text-main);
    color: var(--chassis-color);
    padding: 0.4rem 1rem;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

/* Grid Layout */
.grid-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 2rem;
    align-items: stretch;
}


/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
    body {
        padding: 0.5rem;
    }

    .hardware-chassis {
        padding: 1rem;
        gap: 1.5rem;
    }

    /* Stack header branding */
    .branding {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .branding h1 {
        font-size: 2.2rem;
        text-align: center;
    }

    .branding>div:last-child {
        justify-content: space-between;
    }

    .badge {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
    }

    /* Stack parameter inputs */
    .input-row {
        flex-direction: column;
        gap: 1rem;
    }

    /* Adjust button sizes for touch */
    button {
        font-size: 0.9rem;
        padding: 0.8rem;
    }

    /* Stack export buttons on very small screens */
    .transport-controls {
        grid-template-columns: 1fr;
    }

    #playBtn {
        grid-column: span 1;
    }

    .canvas-wrapper {
        min-height: 300px;
    }
}

/* Panels */
.control-module {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.panel {
    border: var(--border);
    background-color: #FFFFFF;
    padding: 1.5rem;
    box-shadow: 4px 4px 0px rgba(17, 17, 17, 0.05);
}

.panel h2 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
    margin: 0 0 1.2rem 0;
    border-bottom: 2px solid var(--text-main);
    padding-bottom: 0.5rem;
    text-transform: uppercase;
}

/* Inputs */
.input-block {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.input-block:last-child {
    margin-bottom: 0;
}

.input-row {
    display: flex;
    gap: 1rem;
}

.input-block.half {
    flex: 1;
}

label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

/* Video import divider */
.video-import-divider {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin: 0.6rem 0;
    position: relative;
}

/* Toggle switch */
.toggle-block {
    display: block;
}

.toggle-title {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.toggle-label {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    cursor: pointer;
    flex: 1;
}

.toggle-label small {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.62rem;
    letter-spacing: 0;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 2.4rem;
    height: 1.3rem;
    cursor: pointer;
    vertical-align: middle;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.toggle-track {
    position: absolute;
    inset: 0;
    background: #ccc;
    border: 2px solid var(--text-main);
    transition: background 0.15s;
}

.toggle-track::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 1px;
    width: calc(1.3rem - 6px);
    height: calc(1.3rem - 6px);
    background: var(--text-main);
    transition: transform 0.15s;
}

.toggle-switch input:checked + .toggle-track {
    background: var(--accent);
    border-color: var(--accent);
}

.toggle-switch input:checked + .toggle-track::after {
    transform: translateX(1.1rem);
    background: #fff;
}

/* Drop Zone */
.drop-zone {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    border: 2px dashed var(--text-main);
    padding: 0.85rem 1rem;
    cursor: pointer;
    background: #fff;
    transition: border-color 0.15s, background-color 0.15s;
    user-select: none;
}

.drop-zone:hover {
    border-color: var(--accent);
    background-color: rgba(255, 63, 0, 0.04);
}

.drop-zone--over {
    border-style: solid;
    border-color: var(--accent);
    background-color: rgba(255, 63, 0, 0.08);
}

.drop-zone--loaded {
    border-style: solid;
    border-color: var(--text-main);
}

.drop-zone__input {
    display: none;
}

.drop-zone__icon {
    font-size: 1.5rem;
    line-height: 1;
    flex-shrink: 0;
    color: var(--text-muted);
    transition: color 0.15s;
}

.drop-zone--over .drop-zone__icon,
.drop-zone:hover .drop-zone__icon {
    color: var(--accent);
}

.drop-zone--loaded .drop-zone__icon {
    color: var(--text-main);
}

.drop-zone__text {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    line-height: 1.3;
}

.drop-zone--loaded .drop-zone__text {
    color: var(--text-main);
}

.drop-zone__text small {
    font-weight: 400;
    font-size: 0.62rem;
    text-transform: none;
    letter-spacing: 0;
}

/* Custom Selects */
.select-wrapper {
    position: relative;
    border: 2px solid var(--text-main);
    background-color: #FFF;
}

.select-wrapper::after {
    content: "▼";
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    font-size: 0.8rem;
}

select {
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    border: none;
    background: transparent;
    padding: 0.6rem 2rem 0.6rem 0.8rem;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-main);
    cursor: pointer;
}

select:focus {
    outline: none;
    background-color: rgba(17, 17, 17, 0.05);
}

optgroup {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.7rem;
    color: #888;
    background: #fff;
}

optgroup option {
    font-size: 0.9rem;
    color: var(--text-main);
    padding-left: 0.4rem;
}

/* Buttons */
.transport-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background-color: transparent;
    border: none;
    padding: 0;
    box-shadow: none;
}

.transport-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

#playBtn {
    grid-column: span 2;
}

button {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    padding: 0.8rem 1rem;
    border: var(--border);
    cursor: pointer;
    text-transform: uppercase;
    transition: all 0.1s ease;
    box-shadow: var(--shadow);
}

button:active:not(:disabled) {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--text-main);
}

button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    box-shadow: none;
    border-color: #999;
}

.primary-btn {
    background-color: var(--accent);
    color: #FFF;
    border-color: var(--text-main);
}

.primary-btn:not(:disabled):hover {
    background-color: var(--accent-hover);
}

.secondary-btn {
    background-color: #FFF;
    color: var(--text-main);
}

.secondary-btn:not(:disabled):hover {
    background-color: #E2E2DF;
}

.outline-btn {
    background-color: transparent;
    border: 2px dashed var(--text-main);
    color: var(--text-main);
    box-shadow: none;
}

.outline-btn:hover:not(:disabled) {
    background-color: rgba(17, 17, 17, 0.05);
}

.flip-btn {
    width: 100%;
    margin-top: 0.6rem;
    padding: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    border: var(--border-thickness) solid var(--text-main);
    box-shadow: var(--shadow);
    transition: box-shadow 0.15s ease, transform 0.15s ease, background-color 0.15s ease;
    background-color: #1a1a1a;
    color: #FFD700;
    border-color: #FFD700;
    animation: flip-pulse 1.8s ease-in-out infinite;
}

.flip-btn:not(:disabled):hover {
    background-color: #FFD700;
    color: #111111;
    box-shadow: var(--shadow-hover);
    transform: translate(4px, 4px);
    animation: none;
}

.flip-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    box-shadow: none;
    animation: none;
}

.flip-btn.flipped {
    background-color: #1a1a1a;
    color: rgba(255, 215, 0, 0.5);
    border-color: rgba(255, 215, 0, 0.5);
    animation: none;
    cursor: wait;
}

@keyframes flip-pulse {
    0%, 100% { box-shadow: var(--shadow); }
    50%       { box-shadow: 2px 2px 0px #FFD700, 0 0 12px rgba(255, 215, 0, 0.4); }
}

.export-status {
    margin-top: 1rem;
    padding: 0.5rem;
    font-size: 0.8rem;
    background-color: var(--text-main);
    color: var(--accent);
    text-align: center;
    font-weight: 700;
}

.hidden {
    display: none !important;
}

/* Display Module / Canvas Area */
.display-module {
    border: var(--border);
    background-color: var(--canvas-bg);
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: 8px 8px 0px rgba(17, 17, 17, 0.1);

    /* Ensure it spans the full height of both left-column modules on Desktop */
    grid-column: 2;
    grid-row: 1 / span 2;
}

.display-header {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    background-color: var(--text-main);
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.status-indicator {
    animation: blink 2s infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.canvas-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background-color: #000;
    cursor: crosshair;
}

.crt-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    background-size: 100% 2px, 3px 100%;
    pointer-events: none;
    z-index: 10;
}

canvas {
    width: auto;
    height: 100%;
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
}

/* Footer details */
.chassis-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #CCC;
    padding-top: 1rem;
}

.screw {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #fff, #999);
    border: 1px solid #666;
    position: relative;
}

.screw::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 1px;
    background: #444;
    transform: translateY(-50%) rotate(45deg);
}

.footer-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    text-align: center;
}

.serial {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    border-bottom: 1px solid currentColor;
}

.footer-link:hover {
    color: var(--text-main);
}

.disclaimer {
    font-size: 0.6rem;
    color: var(--text-dim, #999);
    max-width: 520px;
    line-height: 1.5;
}

/* Mobile Layout Overrides - MUST BE AT BOTTOM FOR CASCADE */
@media (max-width: 900px) {
    .grid-layout {
        grid-template-columns: 1fr;
    }

    .display-module {
        grid-column: 1;
        grid-row: auto;
    }
}