:root {
    --accent: #00ff00; --accent2: #ff00ff;
    --bg: #000000; --fg: #ffffff;
    --green: #00ff00; --pink: #ff00ff; --cyan: #00ffff; --yellow: #ffff00;
    --border: 4px solid #ffffff;
    --shadow-hard: 6px 6px 0px var(--pink);
    --shadow-black: 6px 6px 0px #333;
}

* { box-sizing: border-box; border-radius: 0 !important; }
button, canvas, h1, h2, .stat { user-select: none; -webkit-tap-highlight-color: transparent; }
input[type=text] { user-select: text; }

body {
    margin: 0; min-height: 100dvh; background-color: var(--bg); color: var(--fg);
    font-family: 'Space Mono', monospace; overflow-x: hidden;
    display: flex; flex-direction: column; align-items: center;
    /* Animated Grid Background */
    background-image: linear-gradient(rgba(57,255,20,0.14) 1px, transparent 1px), linear-gradient(90deg, rgba(57,255,20,0.14) 1px, transparent 1px);
    background-size: 30px 30px;
    animation: bgPan 8s linear infinite; /* v26-bg: grid dibuat 3x lebih terlihat dan 2,5x lebih cepat — di v25 hampir tidak kelihatan */
}

@keyframes bgPan {
    0% { background-position: 0 0; }
    100% { background-position: 30px 30px; }
}

#bg-gl { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; z-index: -1; opacity: 0.6; pointer-events: none; }
body.no-gl #bg-gl { display: none; }
body.no-gl { background: radial-gradient(circle at 20% 20%, rgba(0,255,0,.18), transparent 55%), radial-gradient(circle at 80% 80%, rgba(255,0,255,.18), transparent 55%), #000; }

#ui-layer { width: 100%; max-width: 420px; padding: 20px; padding-bottom: calc(20px + env(safe-area-inset-bottom)); z-index: 10; display: flex; flex-direction: column; gap: 20px; }

header { text-align: center; margin-bottom: 10px; }
.header-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; text-align: left; }
.header-row > div { flex: 1; text-align: center; }

/* FLICKER ANIMATION UNTUK JUDUL */
@keyframes neonFlicker {
    0%, 18%, 22%, 25%, 53%, 57%, 100% { text-shadow: 3px 3px 0 var(--pink), 0 0 10px var(--green), 0 0 20px var(--green); opacity: 1; }
    20%, 24%, 55% { text-shadow: none; opacity: 0.5; }
}
h1 { font-family: 'Press Start 2P', monospace; font-size: 22px; color: var(--green); margin: 0; line-height: 1.3; }
h1.flicker { animation: neonFlicker 3s infinite alternate; }
h2 { font-size: 12px; color: var(--cyan); margin: 5px 0 0 0; letter-spacing: 2px; }

.panel { background: #000; border: var(--border); box-shadow: var(--shadow-hard); padding: 20px; width: 100%; }
.stack { display: flex; flex-direction: column; gap: 15px; }
.row { display: flex; gap: 10px; }
.row > button { flex: 1; min-width: 0; }
.hidden { display: none !important; }

button { border: var(--border); padding: 15px; font: bold 14px 'Space Mono', monospace; text-transform: uppercase; cursor: pointer; transition: transform .08s, box-shadow .08s; box-shadow: var(--shadow-black); background: #000; color: #fff; }
button:focus-visible, input:focus-visible, canvas:focus-visible { outline: 3px solid var(--yellow); outline-offset: 2px; }
button:active { transform: translate(4px, 4px); box-shadow: none; }
button:disabled { opacity: .45; cursor: not-allowed; transform: none; box-shadow: var(--shadow-black); }
.btn-primary { background: var(--green); color: #000; width: 100%; }
.btn-secondary { background: #000; color: var(--cyan); border-color: var(--cyan); width: 100%; }
.btn-danger { background: #000; color: var(--pink); border-color: var(--pink); width: 100%; }
.btn-icon { width: 48px; height: 48px; padding: 0; font-size: 20px; flex-shrink: 0; box-shadow: 4px 4px 0 var(--pink); }
#qualityBtn { width: auto; min-width: 92px; height: 48px; padding: 0 8px; font-size: 10px; }

.diff-row { display: flex; gap: 10px; }
.btn-diff { flex: 1; padding: 10px 0; background: #000; color: #999; border: 2px solid #666; box-shadow: none; font-size: 12px; min-width: 0; }
.btn-diff.active { background: var(--cyan); color: #000; border-color: #fff; box-shadow: 4px 4px 0 var(--pink); }

label { font-size: 12px; color: var(--pink); font-weight: bold; }
input[type=text] { width: 100%; padding: 15px; border: var(--border); background: #000; color: var(--green); font: 14px 'Space Mono', monospace; outline: none; }
input[type=text]:focus { border-color: var(--green); box-shadow: 0 0 10px var(--green); }
input[type=text].invalid { border-color: var(--pink); box-shadow: 0 0 10px var(--pink); }

.msg { text-align: center; color: var(--green); font-size: 12px; font-weight: bold; margin: 15px 0 0 0; border: 1px dashed var(--green); padding: 10px; word-break: break-word; }
.anthem { font-size: 12px; color: var(--cyan); text-align: center; margin: 0; word-break: break-word; }
.warn { font-size: 11px; color: var(--yellow); text-align: left; margin: 0; border: 1px dashed var(--yellow); padding: 8px 10px; line-height: 1.5; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 15px; }
.stat { border: 2px solid #fff; padding: 10px; text-align: center; background: #000; min-width: 0; }
.stat b { display: block; color: var(--green); font-size: 16px; font-family: 'Press Start 2P', monospace; overflow: hidden; text-overflow: ellipsis; }
.stat span { font-size: 10px; color: #aaa; }

canvas { display: block; width: 100%; height: auto; border: none; box-shadow: none; image-rendering: pixelated; image-rendering: crisp-edges; }
.canvas-wrapper { width: 100%; border: var(--border); box-shadow: 6px 6px 0 var(--cyan); background: #050505; margin-bottom: 15px; position: relative; overflow: hidden; }
.canvas-wrapper canvas { box-shadow: none; border: none; }
#game-canvas { touch-action: none; background: #050505; }
#card-canvas { background: #050505; }

/* 3D ROTATING AVATAR */
.avatar-container { width: 100%; display: flex; justify-content: center; perspective: 1000px; }
.avatar-wrapper { width: 100px; height: 100px; margin: 0 auto; } /* v26 FIX #4: animasi spin3D di wrapper DIMATIKAN — putaran dilakukan di dalam canvas lewat JS, bukan CSS */
@keyframes spin3D { 
    0% { transform: rotateY(0deg); } 
    100% { transform: rotateY(360deg); } 
}
#avatarPreviewWrap { display: flex; flex-direction: column; align-items: center; gap: 6px; border: 2px dashed var(--accent); padding: 10px; }
#avatarPreviewWrap.hidden { display: none; }
#avatar-preview { width: 128px; height: 128px; border: 3px solid #fff; box-shadow: 4px 4px 0 var(--pink); image-rendering: pixelated; }
#avatarLabel { margin: 0; font-size: 10px; color: var(--cyan); letter-spacing: 2px; }
#duelOut { width: 100%; background: #000; color: var(--cyan); border: 2px solid var(--cyan); font: 11px 'Space Mono', monospace; padding: 8px; }
#glStatus, #gameAudioStatus { border-color: var(--cyan); color: var(--cyan); }
body.hemat { background: #181818; }
body.hemat #bg-gl { opacity: .1; }

.hint { text-align: center; font-size: 11px; color: #aaa; margin: 15px 0; line-height: 1.7; }
.kbd-hint { color: #888; font-size: 10px; }

#resultPanel { text-align: center; }
#resultPanel .grade, .grade { font-family: 'Press Start 2P', monospace; font-size: 64px; line-height: 1; margin: 20px 0; color: var(--cyan); text-shadow: 4px 4px 0 var(--pink); }
.kv { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; font-size: 12px; border: 2px solid #333; padding: 15px; margin-bottom: 20px; text-align: left; }
.kv b { color: var(--green); text-align: right; overflow-wrap: anywhere; }

.footer { text-align: center; font-size: 10px; color: #777; line-height: 1.6; padding: 0 8px; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } #bg-gl { opacity: .15; } .avatar-wrapper { animation: none; } }
@media (max-width: 360px) { h1 { font-size: 18px; } .panel { padding: 15px; } .stat b { font-size: 13px; } }

#crt { position: fixed; inset: 0; z-index: 50; pointer-events: none; opacity: .14; background: repeating-linear-gradient(0deg, rgba(0,0,0,.9) 0 1px, transparent 1px 3px); }
#crt::after { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,.55) 100%); }
.hash { margin: 0; font-size: 10px; color: #888; word-break: break-all; text-align: center; }
#precisionBox { display: flex; justify-content: space-between; gap: 8px; border: 2px solid #333; padding: 8px 10px; font-size: 11px; color: #aaa; margin: 12px 0 8px 0; }
#precisionBox b { color: var(--accent); }
#vizBars { display: flex; align-items: flex-end; gap: 3px; height: 28px; border: 2px solid #222; padding: 4px; margin-bottom: 10px; }
#vizBars i { flex: 1; display: block; background: var(--accent); height: 20%; min-height: 2px; }
@keyframes pop { 0% { transform: scale(1); } 40% { transform: scale(1.25); } 100% { transform: scale(1); } }
@keyframes shake { 0%,100% { transform: translate(0,0); } 25% { transform: translate(-4px,2px); } 50% { transform: translate(4px,-2px); } 75% { transform: translate(-2px,-2px); } }
.stat.pop b { animation: pop .18s steps(2) 1; }
#gamePanel.shake { animation: shake .18s steps(3) 1; }
@media (prefers-reduced-motion: reduce) { #crt { display: none; } .stat.pop b, #gamePanel.shake { animation: none !important; } }

#dailyBox { border: 2px dashed var(--yellow); padding: 10px; display: flex; flex-direction: column; gap: 6px; }
#dailyBox.hidden { display: none; }
#dailyTitle { margin: 0; font-size: 12px; color: var(--yellow); font-weight: bold; letter-spacing: 2px; }
#dailyInfo { margin: 0; font-size: 11px; color: #aaa; line-height: 1.5; }
#streakLine { margin: 0; font-size: 12px; color: var(--pink); font-weight: bold; }
.mission { font-size: 11px; color: #ccc; border: 1px solid #333; padding: 6px 8px; margin-top: 4px; }
.mission.done { color: var(--green); border-color: var(--green); text-decoration: line-through; }
.mission.done::before { content: "[DONE] "; }
#levelLabel { margin: 0; font-size: 11px; color: var(--yellow); font-weight: bold; letter-spacing: 1px; }
#masteryBox { border: 2px solid #333; padding: 10px; }
.mastery-title { margin: 0 0 8px 0; font-size: 11px; color: var(--cyan); font-weight: bold; letter-spacing: 1px; }
#historyBars { display: flex; align-items: flex-end; gap: 3px; height: 48px; }
#historyBars i { flex: 1; display: block; background: var(--cyan); min-height: 3px; }
#historyBars i.best { background: var(--yellow); }
#masteryStats { margin: 8px 0 0 0; font-size: 11px; color: #aaa; line-height: 1.6; }
#missionResult { margin: 12px 0; text-align: left; }
#xpMsg { border-color: var(--yellow); color: var(--yellow); }

#musicSplash { position: fixed; inset: 0; z-index: 100; background: rgba(0,0,0,.92); display: flex; align-items: center; justify-content: center; padding: 20px; }
#musicSplash.hidden { display: none !important; }
.splash-box { border: 4px solid #00ff00; box-shadow: 6px 6px 0 #ff00ff; background: #000; padding: 24px 18px; text-align: center; max-width: 340px; width: 100%; }
.splash-title { font-family: 'Press Start 2P', monospace; font-size: 20px; color: #00ff00; margin: 0 0 8px 0; text-shadow: 3px 3px 0 #ff00ff; }
.splash-sub { font-size: 12px; color: #00ffff; letter-spacing: 2px; margin: 0 0 16px 0; }
.splash-note { font-size: 11px; color: #888; line-height: 1.6; margin: 14px 0 0 0; }

/* v26-bg: BACKGROUND BERGERAK ALA FILE TES — murni CSS, jalan walau WebGL mati.
   Model animasi: grid diagonal geser + 2 orb cahaya melayang + 1 garis sweep turun.
   Tidak pakai WebGL, tidak pakai JS, jadi tidak bisa "gagal diam" seperti background 3D. */
#bg-anim { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
#bg-anim .orb { position: absolute; width: 180px; height: 180px; opacity: .30; }
#bg-anim .orb-g { background: #00ff00; box-shadow: 0 0 60px #00ff00; top: 8%; left: -40px; animation: driftG 12s ease-in-out infinite alternate; }
#bg-anim .orb-p { background: #ff00ff; box-shadow: 0 0 60px #ff00ff; bottom: 12%; right: -40px; animation: driftP 14s ease-in-out infinite alternate; }
@keyframes driftG { from { transform: translate(0, 0); } to { transform: translate(60px, 90px); } }
@keyframes driftP { from { transform: translate(0, 0); } to { transform: translate(-70px, -70px); } }
#bg-anim .sweep { position: absolute; left: 0; right: 0; height: 60px; background: linear-gradient(180deg, transparent, rgba(0,255,255,.14), transparent); animation: sweepY 6s linear infinite; }
@keyframes sweepY { from { top: -60px; } to { top: 100%; } }
body.hemat #bg-anim { display: none; } /* HEMAT = diam, sesuai janji tombol QLTY */

.creator-link { color: var(--cyan); text-decoration: none; border-bottom: 2px solid var(--pink); font-weight: bold; letter-spacing: 1px; }
.creator-link:hover, .creator-link:focus-visible { color: var(--yellow); border-color: var(--yellow); }