:root {
    --accent: #ff2200;
    --bg-dark: #0a0a0a;
    --surface: #141414;
    --card: #1c1c1c;
    --border: #333;
    --text: #ffffff;
    --muted: #888;
    --display: 'Outfit', sans-serif;
    --mono: 'JetBrains Mono', monospace;
}

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;700&family=JetBrains+Mono&display=swap');

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

body {
    background-color: var(--bg-dark);
    color: var(--text);
    font-family: var(--display);
    overflow: hidden; /* Canvas will take whole screen */
    height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    position: relative;
    width: 100%;
    height: 100%;
}

#renderCanvas {
    width: 100%;
    height: 100%;
    touch-action: none;
    outline: none;   /* remove the blue focus ring from tabindex */
    display: block;
}

.ui-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
    display: flex;
    flex-direction: column;
    padding: 40px;
    justify-content: flex-start;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    pointer-events: auto;
}

.brand {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 2px;
}

.brand span {
    color: var(--accent);
}

.controls-panel {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
    padding: 90px 60px 40px;
    background: rgba(10, 10, 10, 0.82);
    backdrop-filter: blur(12px);
    pointer-events: auto;
    transition: opacity 0.4s ease;
}

.controls-panel.hidden {
    opacity: 0;
    pointer-events: none;
}

.setup-title {
    text-align: center;
}

.panel-header {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--muted);
    margin-bottom: 12px;
}

h2 {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.1;
}

/* ── Cards row ── */
.setup-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    width: 100%;
    max-width: 1100px;
}

.setup-card {
    background: rgba(20, 20, 20, 0.9);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: border-color 0.2s;
}

.setup-card:hover {
    border-color: rgba(255, 255, 255, 0.18);
}

.setup-card-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
}

.setup-card-desc {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    line-height: 1.5;
    margin-bottom: 4px;
}

/* ── Keybinds row ── */
.instructions {
    display: flex;
    flex-direction: row;
    gap: 28px;
    align-items: center;
}

.instr-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
}

.input-group {
    margin-bottom: 0;
}

label {
    display: block;
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}

.file-input-wrapper {
    position: relative;
    overflow: hidden;
    display: inline-block;
    width: 100%;
}

.btn-file {
    border: 1px dashed var(--border);
    color: var(--muted);
    background: transparent;
    padding: 20px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-family: var(--mono);
    width: 100%;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}

.btn-file:hover {
    border-color: var(--accent);
    color: var(--text);
}

.file-input-wrapper input[type=file] {
    font-size: 100px;
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 14px 28px;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
    margin-bottom: 12px;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 34, 0, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.instructions {
    margin-top: 24px;
    border-top: 1px solid var(--border);
    padding-top: 24px;
}


.key {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: var(--mono);
}

.game-hud {
    position: absolute;
    bottom: 40px;
    left: 40px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s;
}

.game-hud.visible {
    opacity: 1;
}

.hud-item {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.hud-item b {
    color: var(--text);
    font-size: 18px;
}

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s;
}

.loading-screen.visible {
    opacity: 1;
    visibility: visible;
}

.loader {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-bottom-color: var(--accent);
    border-radius: 50%;
    display: inline-block;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes rotation {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.crosshair {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    transform: translate(-50%, -50%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
}

.crosshair.visible {
    opacity: 0.8;
}

.crosshair::before, .crosshair::after {
    content: '';
    position: absolute;
    background: var(--text);
}

.crosshair::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    margin-top: -1px;
}

.crosshair::after {
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    margin-left: -1px;
}

/* ── Click-to-lock prompt ────────────────────────── */
.lock-prompt {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(10, 10, 10, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 20px 32px;
    text-align: center;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text);
    pointer-events: none;   /* pass clicks through to canvas */
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s;
    backdrop-filter: blur(4px);
}

.lock-prompt.visible {
    opacity: 1;
    visibility: visible;
}

.lock-icon {
    font-size: 28px;
    margin-bottom: 10px;
    opacity: 0.7;
}

.lock-sub {
    margin-top: 6px;
    font-size: 9px;
    letter-spacing: 2px;
    color: var(--muted);
}

/* ── Minimap ─────────────────────────────────────── */
.minimap {
    position: absolute;
    bottom: 40px;
    right: 40px;
    width: 220px;
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
}

.minimap.visible {
    opacity: 0.85;
}

#minimapCanvas {
    width: 220px;
    height: 220px;
    border: 1px solid var(--border);
    display: block;
    image-rendering: pixelated;
}

.minimap-label {
    font-family: var(--mono);
    font-size: 8px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--muted);
    text-align: center;
    margin-top: 4px;
}

/* ── Victory screen ──────────────────────────────── */
.victory-screen {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 10, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: all 0.6s;
}

.victory-screen.visible {
    opacity: 1;
    visibility: visible;
}

.victory-content {
    text-align: center;
    max-width: 360px;
}

.victory-tag {
    font-size: 10px;
    letter-spacing: 5px;
    text-transform: uppercase;
    color: #00c896;
    margin-bottom: 16px;
}

.victory-title {
    font-family: var(--display);
    font-size: 64px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.victory-title span {
    color: var(--accent);
}

.victory-content p {
    color: var(--muted);
    font-family: var(--mono);
    font-size: 13px;
}

/* ── JSON secondary button ───────────────────────── */
.btn-secondary {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    padding: 10px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--text);
}

/* ── Range slider customization ── */
input[type=range] {
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    background: var(--border);
    cursor: pointer;
}

input[type=range]::-webkit-slider-thumb {
    height: 12px;
    width: 12px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -4px; /* Centers thumb on the 4px track */
    box-shadow: 0 0 8px rgba(255, 34, 0, 0.4);
}

input[type=range]:focus::-webkit-slider-runnable-track {
    background: #444;
}

input[type=range]::-moz-range-track {
    width: 100%;
    height: 4px;
    background: var(--border);
    cursor: pointer;
}

input[type=range]::-moz-range-thumb {
    height: 12px;
    width: 12px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: none;
    box-shadow: 0 0 8px rgba(255, 34, 0, 0.4);
}