/* Retro arcade look: dark screen, neon yellow, hazard stripes, CRT scanlines */
:root {
    --bg: #0d1030;
    --panel: #161a45;
    --yellow: #ffd400;
    --orange: #ff8a00;
    --green: #39ff6a;
    --red: #ff3b5c;
    --text: #e8ecff;
    --pixel: 'Press Start 2P', monospace;
    --mono: 'VT323', monospace;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    min-height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: var(--mono);
    font-size: 22px;
}

/* CRT scanlines */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: repeating-linear-gradient(0deg, rgba(0,0,0,.25) 0 2px, transparent 2px 4px);
    z-index: 999;
}

.stripes {
    height: 18px;
    background: repeating-linear-gradient(45deg, var(--yellow) 0 20px, #111 20px 40px);
}

main { padding: 24px 16px 48px; }

.screen { max-width: 900px; margin: 0 auto; text-align: center; }

h1, h2, .btn, .hud, th { font-family: var(--pixel); }
h1:focus { outline: none; }

.title {
    font-size: clamp(16px, 4vw, 34px);
    line-height: 1.6;
    color: var(--yellow);
    text-shadow: 4px 4px 0 var(--orange), 8px 8px 0 #000;
}
.title span { color: var(--green); }

h2 { font-size: clamp(12px, 2.4vw, 18px); color: var(--orange); margin-top: 32px; }

.mascot { font-size: 56px; animation: bounce 1.2s infinite steps(2); }
@keyframes bounce { 50% { transform: translateY(-8px); } }

.big { font-family: var(--pixel); font-size: 28px; color: var(--yellow); }
.blink { animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.btn {
    display: inline-block;
    margin: 16px 0;
    padding: 14px 22px;
    font-size: 16px;
    color: #111;
    background: var(--yellow);
    border: 0;
    box-shadow: 5px 5px 0 var(--orange), 9px 9px 0 #000;
    text-decoration: none;
    cursor: pointer;
}
.btn:active { transform: translate(4px, 4px); box-shadow: 1px 1px 0 var(--orange); }
.btn:disabled { opacity: .5; }

.scores { margin: 0 auto; border-collapse: collapse; min-width: min(560px, 100%); }
.scores th { font-size: 11px; color: var(--yellow); padding: 8px; }
.scores td { padding: 4px 12px; border-top: 2px dashed #2a3070; font-size: 24px; }
.scores tr:nth-child(2) td { color: var(--yellow); }
.scores .total td { color: var(--green); border-top: 3px solid var(--green); }

.hud {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--green);
    border: 3px solid var(--green);
    padding: 10px;
}

.lang { background: var(--green); color: #111; padding: 4px 8px; margin-left: 8px; }
.story { text-align: left; font-size: 24px; }

.code { background: #05061a; border: 3px solid var(--yellow); padding: 10px 0; text-align: left; overflow-x: auto; }
.line {
    display: flex;
    width: 100%;
    background: none;
    border: 0;
    color: var(--text);
    font: 22px/1.25 var(--mono);
    text-align: left;
    cursor: pointer;
    padding: 1px 10px;
}
.line:hover:not(:disabled) { background: #2a3070; color: var(--yellow); }
.line:disabled { cursor: default; }
.line .num { color: #6670b0; min-width: 2.5em; user-select: none; }
.line .src { white-space: pre; }
.line.wrong { background: rgba(255, 59, 92, .35); text-decoration: line-through; }
.line.right { background: rgba(57, 255, 106, .3); color: var(--green); }

.msg { font-family: var(--pixel); font-size: 14px; animation: pop .4s; }
.msg.ok { color: var(--green); }
.msg.bad { color: var(--red); }
@keyframes pop { from { transform: scale(2); opacity: 0; } }

.explain { text-align: left; border-left: 4px solid var(--orange); padding-left: 12px; font-size: 24px; }

.login { display: flex; flex-direction: column; align-items: center; gap: 12px; margin-top: 24px; }
.login input {
    font: 26px var(--mono);
    padding: 8px 12px;
    width: min(360px, 100%);
    background: #05061a;
    color: var(--yellow);
    border: 3px solid var(--yellow);
    text-align: center;
}

#blazor-error-ui { color: #111; }