/* ============================================
   SHMUP STUDIO - Main Stylesheet
   C64 Retro Arcade Theme
   ============================================ */

/* CSS Reset & Variables */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* C64 Retro Palette */
    --bg-deepest: #0a0a14;
    --bg-dark: #1a1a2e;
    --bg-mid: #232342;
    --bg-light: #2d2d52;
    --bg-panel: #1f1f3a;
    --bg-panel-light: #2a2a4d;

    --pink: #ff3e7f;
    --pink-dim: #b32a59;
    --pink-glow: rgba(255, 62, 127, 0.5);

    --cyan: #4cc9f0;
    --cyan-dim: #2e7d99;
    --cyan-glow: rgba(76, 201, 240, 0.5);

    --amber: #ffb627;
    --amber-dim: #b3801c;
    --amber-glow: rgba(255, 182, 39, 0.5);

    --green: #6dff8c;
    --green-dim: #4eb35f;

    --red: #ff4d4d;
    --purple: #a64dff;

    --text: #e8e8f0;
    --text-dim: #9090b0;
    --text-muted: #5a5a78;
    --text-bright: #ffffff;

    --border: #3d3d6b;
    --border-bright: #5a5a8e;

    /* Typography */
    --font-mono: 'Courier New', 'Lucida Console', monospace;
    --font-pixel: 'Courier New', 'Lucida Console', monospace;

    /* Sizing */
    --top-bar-h: 48px;
    --sidebar-w: 88px;
    --properties-w: 280px;
    --toolbar-h: 44px;
    --status-h: 28px;

    /* Pixel border */
    --pixel-border: 2px solid var(--border-bright);
}

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
    background: var(--bg-deepest);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.4;
    -webkit-font-smoothing: none;
    -moz-osx-font-smoothing: grayscale;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    user-select: none;
    cursor: default;
}

/* CRT overlay effects */
.crt-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    background: radial-gradient(ellipse at center, transparent 50%, rgba(0, 0, 0, 0.4) 100%);
}

.crt-scanlines {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9998;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.15) 0px,
        rgba(0, 0, 0, 0.15) 1px,
        transparent 1px,
        transparent 3px
    );
    opacity: 0.6;
}

.crt-flicker {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9997;
    background: rgba(76, 201, 240, 0.02);
    animation: flicker 0.15s infinite alternate;
}

@keyframes flicker {
    0% { opacity: 0.97; }
    100% { opacity: 1; }
}

/* Boot Screen */
.boot-screen {
    position: fixed;
    inset: 0;
    background: var(--bg-deepest);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s;
}

.boot-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.boot-content {
    text-align: center;
    padding: 40px;
}

.boot-logo-art {
    margin-bottom: 20px;
    filter: drop-shadow(0 0 12px var(--cyan-glow));
}

.boot-title {
    font-family: var(--font-mono);
    font-size: 56px;
    font-weight: 900;
    letter-spacing: 4px;
    color: var(--cyan);
    text-shadow:
        0 0 8px var(--cyan-glow),
        0 0 16px var(--cyan-glow),
        4px 4px 0 var(--pink);
    margin-bottom: 8px;
    animation: titlePulse 2s ease-in-out infinite;
}

.boot-title span {
    color: var(--pink);
    text-shadow:
        0 0 8px var(--pink-glow),
        0 0 16px var(--pink-glow),
        4px 4px 0 var(--cyan);
}

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

.boot-subtitle {
    font-size: 13px;
    color: var(--amber);
    letter-spacing: 2px;
    margin-bottom: 32px;
    text-shadow: 0 0 6px var(--amber-glow);
}

.boot-bar {
    width: 360px;
    height: 12px;
    background: var(--bg-mid);
    border: var(--pixel-border);
    margin: 0 auto 12px;
    overflow: hidden;
    box-shadow: inset 0 0 4px rgba(0,0,0,0.6);
}

.boot-bar-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--pink), var(--amber), var(--cyan));
    transition: width 0.1s linear;
    box-shadow: 0 0 8px var(--cyan-glow);
}

.boot-status {
    font-size: 11px;
    color: var(--cyan);
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.boot-version {
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

/* App shell */
.app-shell {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
}

.hidden { display: none !important; }

/* Top bar */
.top-bar {
    height: var(--top-bar-h);
    background: linear-gradient(180deg, var(--bg-mid) 0%, var(--bg-dark) 100%);
    border-bottom: var(--pixel-border);
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 16px;
    box-shadow: 0 2px 0 var(--bg-deepest), 0 4px 12px rgba(0,0,0,0.4);
    z-index: 100;
    flex-shrink: 0;
}

.top-bar-left, .top-bar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.top-bar-right { justify-content: flex-end; }

.top-bar-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 6px;
    padding-right: 12px;
    border-right: 1px solid var(--border);
    margin-right: 4px;
}

.brand-logo {
    filter: drop-shadow(0 0 4px var(--pink-glow));
}

.brand-name {
    font-family: var(--font-mono);
    font-weight: 900;
    font-size: 15px;
    color: var(--cyan);
    letter-spacing: 1px;
    text-shadow: 0 0 6px var(--cyan-glow);
}

.brand-name span {
    color: var(--pink);
    text-shadow: 0 0 6px var(--pink-glow);
}

.menu-bar {
    display: flex;
    gap: 2px;
}

.menu-item {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-dim);
    padding: 6px 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: bold;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.1s;
}

.menu-item:hover, .menu-item.active {
    background: var(--bg-light);
    color: var(--amber);
    border-color: var(--border-bright);
    text-shadow: 0 0 4px var(--amber-glow);
}

.project-name-input {
    background: var(--bg-deepest);
    border: var(--pixel-border);
    color: var(--amber);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 2px;
    padding: 6px 12px;
    text-align: center;
    width: 280px;
    text-shadow: 0 0 4px var(--amber-glow);
    outline: none;
    text-transform: uppercase;
}

.project-name-input:focus {
    border-color: var(--amber);
    box-shadow: 0 0 8px var(--amber-glow);
}

.top-btn {
    background: var(--bg-mid);
    border: var(--pixel-border);
    color: var(--text);
    padding: 6px 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: bold;
    letter-spacing: 1px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.1s;
    height: 32px;
}

.top-btn img {
    pointer-events: none;
    color: var(--text);
}

.top-btn:hover {
    background: var(--bg-light);
    border-color: var(--cyan);
    color: var(--cyan);
    box-shadow: 0 0 8px var(--cyan-glow);
}

.top-btn:hover img { color: var(--cyan); }

.top-btn.primary {
    background: var(--pink);
    border-color: var(--pink);
    color: var(--bg-deepest);
    box-shadow: 0 0 12px var(--pink-glow);
}

.top-btn.primary:hover {
    background: var(--amber);
    border-color: var(--amber);
    box-shadow: 0 0 16px var(--amber-glow);
}

/* Dropdown menus */
.menu-dropdowns {
    position: absolute;
    top: var(--top-bar-h);
    left: 0;
    right: 0;
    height: calc(100vh - var(--top-bar-h));
    z-index: 99;
}

.dropdown {
    position: absolute;
    background: var(--bg-panel);
    border: var(--pixel-border);
    box-shadow: 4px 4px 0 var(--bg-deepest), 0 8px 24px rgba(0,0,0,0.6);
    min-width: 220px;
    padding: 4px;
}

.dropdown[data-menu="file"] { left: 100px; }
.dropdown[data-menu="edit"] { left: 150px; }
.dropdown[data-menu="view"] { left: 195px; }
.dropdown[data-menu="project"] { left: 240px; }
.dropdown[data-menu="help"] { left: 310px; }

.dd-item {
    display: block;
    width: 100%;
    background: transparent;
    border: none;
    color: var(--text);
    padding: 8px 14px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 1px;
    text-align: left;
    cursor: pointer;
    transition: all 0.05s;
}

.dd-item:hover {
    background: var(--pink);
    color: var(--bg-deepest);
    text-shadow: none;
}

.dd-sep {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

/* Workspace */
.workspace {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-w);
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-panel) 100%);
    border-right: var(--pixel-border);
    display: flex;
    flex-direction: column;
    padding: 8px 0;
    flex-shrink: 0;
    box-shadow: 2px 0 8px rgba(0,0,0,0.3);
}

.sidebar-header {
    font-size: 9px;
    color: var(--text-muted);
    text-align: center;
    letter-spacing: 2px;
    padding: 4px 0 8px;
    border-bottom: 1px solid var(--border);
    margin: 0 8px 8px;
}

.module-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0 8px;
}

.module-btn {
    background: var(--bg-mid);
    border: var(--pixel-border);
    color: var(--text-dim);
    padding: 10px 4px;
    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: bold;
    letter-spacing: 1px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transition: all 0.1s;
    position: relative;
}

.module-btn img {
    color: var(--text-dim);
    transition: all 0.1s;
}

.module-btn:hover {
    background: var(--bg-light);
    color: var(--cyan);
    border-color: var(--cyan);
    box-shadow: 0 0 8px var(--cyan-glow);
}

.module-btn:hover img { color: var(--cyan); }

.module-btn.active {
    background: var(--pink);
    border-color: var(--pink);
    color: var(--bg-deepest);
    box-shadow: 0 0 12px var(--pink-glow);
}

.module-btn.active img { color: var(--bg-deepest); }

.module-btn.active::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 6px 0 6px 6px;
    border-color: transparent transparent transparent var(--pink);
}

.sidebar-spacer { flex: 1; }

.sidebar-footer {
    padding: 8px;
    border-top: 1px solid var(--border);
    margin: 0 8px;
}

.play-btn {
    background: var(--green);
    border-color: var(--green);
    color: var(--bg-deepest);
    box-shadow: 0 0 12px rgba(109, 255, 140, 0.4);
}

.play-btn:hover {
    background: var(--green);
    border-color: var(--green);
    color: var(--bg-deepest);
    box-shadow: 0 0 20px rgba(109, 255, 140, 0.7);
    transform: translateY(-1px);
}

.play-btn img { color: var(--bg-deepest); }

/* Canvas area */
.canvas-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-deepest);
    overflow: hidden;
    min-width: 0;
}

.module-toolbar {
    height: var(--toolbar-h);
    background: var(--bg-panel);
    border-bottom: var(--pixel-border);
    display: flex;
    align-items: center;
    padding: 0 8px;
    gap: 4px;
    flex-shrink: 0;
    overflow-x: auto;
}

.tool-btn {
    background: var(--bg-mid);
    border: 1px solid var(--border);
    color: var(--text-dim);
    padding: 6px 8px;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: bold;
    letter-spacing: 1px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.1s;
    height: 30px;
    min-width: 30px;
    justify-content: center;
}

.tool-btn img {
    color: var(--text-dim);
    pointer-events: none;
}

.tool-btn:hover {
    background: var(--bg-light);
    color: var(--cyan);
    border-color: var(--cyan);
}

.tool-btn:hover img { color: var(--cyan); }

.tool-btn.active {
    background: var(--cyan);
    color: var(--bg-deepest);
    border-color: var(--cyan);
    box-shadow: 0 0 8px var(--cyan-glow);
}

.tool-btn.active img { color: var(--bg-deepest); }

.tool-sep {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 4px;
}

.tool-label {
    color: var(--text-dim);
    font-size: 10px;
    letter-spacing: 1px;
    padding: 0 4px;
}

.tool-select {
    background: var(--bg-deepest);
    border: 1px solid var(--border);
    color: var(--amber);
    font-family: var(--font-mono);
    font-size: 10px;
    padding: 4px 8px;
    cursor: pointer;
    outline: none;
}

.tool-select:focus { border-color: var(--cyan); }

.tool-input {
    background: var(--bg-deepest);
    border: 1px solid var(--border);
    color: var(--amber);
    font-family: var(--font-mono);
    font-size: 10px;
    padding: 4px 8px;
    width: 60px;
    outline: none;
}

.tool-input:focus { border-color: var(--cyan); }

.canvas-container {
    flex: 1;
    overflow: auto;
    background:
        linear-gradient(45deg, var(--bg-dark) 25%, transparent 25%),
        linear-gradient(-45deg, var(--bg-dark) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--bg-dark) 75%),
        linear-gradient(-45deg, transparent 75%, var(--bg-dark) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    background-color: var(--bg-deepest);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
}

/* Status bar */
.status-bar {
    height: var(--status-h);
    background: var(--bg-panel);
    border-top: var(--pixel-border);
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 24px;
    flex-shrink: 0;
    overflow-x: auto;
}

.status-item {
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 1px;
    white-space: nowrap;
}

.status-item:first-child {
    color: var(--amber);
    text-shadow: 0 0 4px var(--amber-glow);
}

/* Properties panel */
.properties-panel {
    width: var(--properties-w);
    background: linear-gradient(180deg, var(--bg-panel) 0%, var(--bg-dark) 100%);
    border-left: var(--pixel-border);
    overflow-y: auto;
    overflow-x: hidden;
    flex-shrink: 0;
    box-shadow: -2px 0 8px rgba(0,0,0,0.3);
}

.prop-section {
    border-bottom: 1px solid var(--border);
    padding: 12px;
}

.prop-section-title {
    font-size: 10px;
    color: var(--cyan);
    letter-spacing: 2px;
    margin-bottom: 10px;
    text-shadow: 0 0 4px var(--cyan-glow);
    display: flex;
    align-items: center;
    gap: 6px;
}

.prop-section-title::before {
    content: '►';
    color: var(--pink);
    font-size: 8px;
}

.prop-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    gap: 8px;
}

.prop-label {
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 1px;
    flex-shrink: 0;
}

.prop-input, .prop-select {
    background: var(--bg-deepest);
    border: 1px solid var(--border);
    color: var(--amber);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 4px 6px;
    width: 100%;
    min-width: 0;
    outline: none;
}

.prop-input:focus, .prop-select:focus {
    border-color: var(--cyan);
    box-shadow: 0 0 4px var(--cyan-glow);
}

.prop-select {
    cursor: pointer;
    width: 130px;
    flex-shrink: 0;
}

.prop-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.prop-checkbox input {
    accent-color: var(--pink);
    cursor: pointer;
}

.prop-btn {
    background: var(--bg-mid);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 10px;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: bold;
    letter-spacing: 1px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    justify-content: center;
    width: 100%;
    transition: all 0.1s;
}

.prop-btn:hover {
    background: var(--bg-light);
    color: var(--cyan);
    border-color: var(--cyan);
}

.prop-btn.danger:hover {
    background: var(--red);
    color: var(--bg-deepest);
    border-color: var(--red);
}

.prop-btn.primary {
    background: var(--pink);
    color: var(--bg-deepest);
    border-color: var(--pink);
}

.prop-btn.primary:hover {
    background: var(--amber);
    border-color: var(--amber);
    color: var(--bg-deepest);
}

.prop-color-row {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 3px;
}

.prop-color-swatch {
    width: 100%;
    aspect-ratio: 1;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.05s;
    image-rendering: pixelated;
}

.prop-color-swatch:hover {
    transform: scale(1.15);
    border-color: var(--cyan);
    z-index: 2;
}

.prop-color-swatch.active {
    border: 2px solid var(--amber);
    box-shadow: 0 0 6px var(--amber-glow);
    transform: scale(1.1);
}

.prop-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 200px;
    overflow-y: auto;
}

.prop-list-item {
    background: var(--bg-mid);
    border: 1px solid var(--border);
    padding: 6px 8px;
    font-size: 10px;
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.05s;
}

.prop-list-item:hover {
    background: var(--bg-light);
    border-color: var(--cyan);
}

.prop-list-item.active {
    background: var(--pink-dim);
    color: var(--text-bright);
    border-color: var(--pink);
}

.prop-list-item-icon {
    width: 16px;
    height: 16px;
    background: var(--bg-deepest);
    border: 1px solid var(--border);
    flex-shrink: 0;
    image-rendering: pixelated;
}

.prop-list-item-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.prop-slider {
    width: 100%;
    accent-color: var(--pink);
    cursor: pointer;
    height: 4px;
}

.prop-slider-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.prop-slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 9px;
    color: var(--text-muted);
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    backdrop-filter: blur(2px);
}

.modal {
    background: var(--bg-panel);
    border: var(--pixel-border);
    box-shadow: 8px 8px 0 var(--bg-deepest), 0 16px 48px rgba(0,0,0,0.8);
    min-width: 400px;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.modal-header {
    background: linear-gradient(180deg, var(--bg-mid) 0%, var(--bg-dark) 100%);
    border-bottom: var(--pixel-border);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    font-size: 12px;
    color: var(--amber);
    letter-spacing: 2px;
    text-shadow: 0 0 4px var(--amber-glow);
}

.modal-close {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-dim);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.1s;
}

.modal-close:hover {
    background: var(--red);
    color: var(--bg-deepest);
    border-color: var(--red);
}

.modal-body {
    padding: 16px;
    overflow-y: auto;
    flex: 1;
    font-size: 11px;
    color: var(--text);
    line-height: 1.6;
}

.modal-footer {
    border-top: var(--pixel-border);
    padding: 10px 14px;
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* Toast */
.toast-container {
    position: fixed;
    bottom: 40px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 300;
    pointer-events: none;
}

.toast {
    background: var(--bg-panel);
    border: var(--pixel-border);
    padding: 10px 14px;
    font-size: 11px;
    color: var(--text);
    letter-spacing: 1px;
    box-shadow: 4px 4px 0 var(--bg-deepest), 0 4px 16px rgba(0,0,0,0.6);
    min-width: 200px;
    animation: toastSlide 0.3s ease-out;
    pointer-events: auto;
}

.toast.success {
    border-color: var(--green);
    color: var(--green);
    text-shadow: 0 0 4px rgba(109, 255, 140, 0.5);
}

.toast.error {
    border-color: var(--red);
    color: var(--red);
    text-shadow: 0 0 4px rgba(255, 77, 77, 0.5);
}

.toast.info {
    border-color: var(--cyan);
    color: var(--cyan);
    text-shadow: 0 0 4px var(--cyan-glow);
}

.toast.warning {
    border-color: var(--amber);
    color: var(--amber);
    text-shadow: 0 0 4px var(--amber-glow);
}

@keyframes toastSlide {
    from { transform: translateX(120%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast.removing {
    animation: toastOut 0.3s ease-in forwards;
}

@keyframes toastOut {
    to { transform: translateX(120%); opacity: 0; }
}

/* Scrollbars */
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--bg-deepest); }
::-webkit-scrollbar-thumb {
    background: var(--bg-mid);
    border: 1px solid var(--border);
}
::-webkit-scrollbar-thumb:hover { background: var(--bg-light); border-color: var(--cyan); }

/* Text selection */
::selection { background: var(--pink); color: var(--bg-deepest); }

/* Pixel canvas styling */
.pixel-canvas {
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    background: var(--bg-deepest);
    border: var(--pixel-border);
    box-shadow:
        0 0 0 4px var(--bg-deepest),
        0 0 0 6px var(--border-bright),
        0 0 24px rgba(0,0,0,0.8),
        0 0 40px var(--cyan-glow);
    cursor: crosshair;
}

.canvas-frame {
    padding: 20px;
    position: relative;
}

.canvas-label {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: var(--pink);
    color: var(--bg-deepest);
    font-size: 9px;
    font-weight: bold;
    letter-spacing: 2px;
    padding: 2px 12px;
    border: var(--pixel-border);
    z-index: 10;
}

/* Game preview canvas */
.game-canvas {
    image-rendering: pixelated;
    background: #000;
    border: var(--pixel-border);
    box-shadow:
        0 0 0 4px var(--bg-deepest),
        0 0 0 6px var(--cyan),
        0 0 24px var(--cyan-glow),
        0 0 48px rgba(0,0,0,0.9);
}

/* Helpful utility classes */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.flex-1 { flex: 1; }
.text-cyan { color: var(--cyan); }
.text-pink { color: var(--pink); }
.text-amber { color: var(--amber); }
.text-dim { color: var(--text-dim); }
.text-bright { color: var(--text-bright); }
.bold { font-weight: bold; }
.uppercase { text-transform: uppercase; }
.text-center { text-align: center; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }

/* Range input styling */
input[type="range"] {
    -webkit-appearance: none;
    background: var(--bg-deepest);
    height: 6px;
    border: 1px solid var(--border);
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--pink);
    border: 1px solid var(--bg-deepest);
    cursor: pointer;
    box-shadow: 0 0 6px var(--pink-glow);
}

input[type="range"]::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--pink);
    border: 1px solid var(--bg-deepest);
    cursor: pointer;
}

/* Checkbox */
input[type="checkbox"] {
    accent-color: var(--pink);
    cursor: pointer;
    width: 14px;
    height: 14px;
}

/* Number input - remove spinner */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type="number"] { -moz-appearance: textfield; }