:root {
    color-scheme: dark;
    --bg: #0a0e1a;
    --panel: #111a2e;
    --panel-2: #0f1425;
    --neon: #5fffe2;
    --neon-2: #7ea2ff;
    --hot: #ff6b6b;
    --ink: #d9e6ff;
    --muted: #92a2c8;
    --shadow: rgba(8, 12, 24, 0.8);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Courier New", "Lucida Console", monospace;
    background: radial-gradient(circle at top, #1a2342 0%, #070a14 60%, #04060f 100%);
    color: var(--ink);
}

.screen {
    min-height: 100vh;
    padding: 40px 20px 60px;
    display: grid;
    gap: 28px;
    justify-items: center;
}

.hero {
    width: min(960px, 100%);
    display: grid;
    gap: 8px;
    text-align: center;
}

.back {
    justify-self: start;
    text-decoration: none;
    color: var(--neon);
    font-size: 0.95rem;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    border: 1px solid rgba(95, 255, 226, 0.4);
    border-radius: 999px;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--neon);
    justify-self: center;
    background: rgba(13, 23, 44, 0.6);
}

h1 {
    margin: 0;
    font-size: clamp(2rem, 3.5vw, 3rem);
}

.subtitle {
    margin: 0;
    color: var(--muted);
    font-size: 1.05rem;
}

.panel {
    width: min(960px, 100%);
    background: linear-gradient(135deg, rgba(14, 21, 40, 0.9), rgba(10, 14, 26, 0.95));
    border: 1px solid rgba(126, 162, 255, 0.4);
    border-radius: 18px;
    padding: 22px;
    display: grid;
    gap: 18px;
    box-shadow: 0 20px 40px var(--shadow);
}

.hud {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
    text-transform: uppercase;
    font-size: 0.72rem;
}

.hud-item {
    background: var(--panel-2);
    border: 1px solid rgba(95, 255, 226, 0.15);
    border-radius: 12px;
    padding: 10px 12px;
    display: grid;
    gap: 6px;
}

.label {
    color: var(--muted);
    letter-spacing: 0.16em;
}

.value {
    font-size: 1.1rem;
    color: var(--neon);
}

.canvas-wrap {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(95, 255, 226, 0.2);
    background: #060912;
}

canvas {
    width: 100%;
    height: auto;
    display: block;
    image-rendering: pixelated;
    touch-action: none;
}

.scanlines {
    pointer-events: none;
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.04),
        rgba(255, 255, 255, 0.04) 1px,
        rgba(0, 0, 0, 0.12) 2px,
        rgba(0, 0, 0, 0.12) 3px
    );
    mix-blend-mode: screen;
    opacity: 0.6;
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.btn {
    font-family: inherit;
    padding: 10px 16px;
    border-radius: 999px;
    border: 1px solid rgba(95, 255, 226, 0.4);
    background: transparent;
    color: var(--ink);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.btn.primary {
    background: linear-gradient(135deg, rgba(95, 255, 226, 0.3), rgba(126, 162, 255, 0.2));
    color: var(--neon);
    border-color: rgba(95, 255, 226, 0.8);
}

.btn.ghost {
    color: var(--muted);
}

.btn:focus-visible {
    outline: 2px solid var(--neon);
    outline-offset: 2px;
}

.tips {
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
}

.status {
    text-align: center;
    padding: 10px 14px;
    border-radius: 12px;
    background: rgba(15, 22, 42, 0.8);
    border: 1px solid rgba(126, 162, 255, 0.3);
    color: var(--neon-2);
}

.footer {
    text-align: center;
    color: var(--muted);
}

@media (max-width: 600px) {
    .panel {
        padding: 18px;
    }

    .hud {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }
}