:root {
	--accent: #7fd8ff;
	--zone-color: #ffffff;
	--cell: 30px; --side: 138px;
	--bx: 0px; --by: 0px; --bw: 300px; --bh: 600px;
	--hold-x: 0px; --hold-y: 0px; --next-x: 0px; --next-y: 0px; --hold-box-h: 100px;
	--font: 'Rajdhani', 'Poppins', system-ui, sans-serif;
	--display: 'Orbitron', 'Rajdhani', system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: #04070f; color: #fff; font-family: var(--font); overflow: hidden; -webkit-user-select: none; user-select: none; -webkit-tap-highlight-color: transparent; touch-action: none; }
canvas#game { position: fixed; inset: 0; display: block; }
.hidden { display: none !important; }
kbd { font-family: var(--font); font-size: 0.8em; padding: 1px 7px; border: 1px solid rgba(255,255,255,0.35); border-bottom-width: 2px; border-radius: 5px; background: rgba(255,255,255,0.06); color: #fff; margin: 0 2px; }

/* ---------- HUD ---------- */
#hud { position: fixed; inset: 0; pointer-events: none; }
#hud .label { font-size: calc(var(--cell) * 0.55); letter-spacing: 0.3em; font-weight: 600; color: rgba(255,255,255,0.72); text-shadow: 0 0 12px rgba(0,0,0,0.8); line-height: calc(var(--cell) * 0.9); }
#hud-hold { position: absolute; left: var(--hold-x); top: var(--hold-y); }
#hud-next { position: absolute; left: var(--next-x); top: var(--next-y); }
#hud-stats { position: absolute; left: var(--hold-x); top: calc(var(--hold-y) + var(--cell) * 0.9 + var(--hold-box-h) + var(--cell) * 0.7); width: var(--side); }
.stat { margin-top: calc(var(--cell) * 0.45); }
.stat .value { font-size: calc(var(--cell) * 1.05); font-weight: 700; line-height: 1; color: #fff; text-shadow: 0 0 18px color-mix(in srgb, var(--accent) 60%, transparent); font-variant-numeric: tabular-nums; }
.stat .value.small { font-size: calc(var(--cell) * 0.7); color: rgba(255,255,255,0.7); }
.zone-wrap { margin-top: 0; }
.zone-bar { position: relative; height: calc(var(--cell) * 0.32); border-radius: 999px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18); overflow: hidden; }
.zone-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), #fff); box-shadow: 0 0 12px var(--accent); transition: width 0.12s linear; }
.zone-bar.ready { border-color: var(--accent); box-shadow: 0 0 14px color-mix(in srgb, var(--accent) 60%, transparent); animation: breathe 1.4s ease-in-out infinite; }
.zone-bar.active { border-color: #fff; box-shadow: 0 0 22px var(--zone-color); }
.zone-bar.active .zone-fill { background: linear-gradient(90deg, #fff, var(--zone-color)); }
.zone-key { font-size: calc(var(--cell) * 0.42); letter-spacing: 0.25em; color: rgba(255,255,255,0.35); margin-top: 4px; }
#zone-count { color: var(--accent); }
@keyframes breathe { 0%,100% { opacity: 0.75; } 50% { opacity: 1; } }
#hud-stage { position: absolute; left: var(--bx); top: calc(var(--by) + var(--bh) + var(--cell) * 0.45); width: var(--bw); }
.stage-line { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; font-size: calc(var(--cell) * 0.55); letter-spacing: 0.12em; font-weight: 600; text-shadow: 0 0 12px rgba(0,0,0,0.9); white-space: nowrap; overflow: hidden; }
.stage-line #stage-sub { color: rgba(255,255,255,0.5); font-weight: 500; letter-spacing: 0.05em; text-overflow: ellipsis; overflow: hidden; }
.progress { height: 3px; margin-top: 6px; background: rgba(255,255,255,0.12); border-radius: 2px; overflow: hidden; }
.progress-fill { height: 100%; width: 0; background: var(--accent); box-shadow: 0 0 10px var(--accent); transition: width 0.25s ease-out; }
#pause-btn { position: absolute; right: 14px; top: 12px; pointer-events: auto; background: rgba(0,0,0,0.35); color: rgba(255,255,255,0.7); border: 1px solid rgba(255,255,255,0.25); border-radius: 8px; width: 40px; height: 40px; font: 700 14px var(--font); letter-spacing: 0.15em; cursor: pointer; }
#mute-badge { position: absolute; left: 14px; top: 14px; font-size: 12px; letter-spacing: 0.3em; color: rgba(255,255,255,0.5); }

/* compact / mobile */
body.compact #hud-stats { top: calc(var(--by) + var(--bh) + var(--cell) * 0.7); left: var(--bx); width: var(--bw); display: grid; grid-template-columns: 1fr 1fr 1fr; gap: calc(var(--cell) * 0.35) calc(var(--cell) * 0.5); }
body.compact .zone-wrap { grid-column: 1 / -1; }
body.compact .zone-bar { height: calc(var(--cell) * 0.28); }
body.compact .stat { margin-top: 0; }
body.compact .stat:nth-of-type(3) { text-align: center; }
body.compact .stat:nth-of-type(4) { text-align: right; }
body.compact .stat .value { font-size: calc(var(--cell) * 0.95); }
body.compact .stat.best { display: none; }
body.compact .zone-key { display: none; }
body.compact #hud .label { font-size: calc(var(--cell) * 0.48); letter-spacing: 0.25em; }
body.compact #hud-stage { top: calc(var(--by) + var(--bh) + var(--cell) * 4.4); }
body.compact .stage-line { font-size: calc(var(--cell) * 0.5); }
body.compact #pause-btn { top: auto; bottom: 12px; right: 12px; width: 36px; height: 36px; }
body.compact #mute-badge { top: auto; bottom: 22px; }

/* ---------- callouts ---------- */
#callouts { position: fixed; left: calc(var(--bx) + var(--bw) / 2); top: calc(var(--by) + var(--bh) * 0.32); transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 4px; pointer-events: none; width: max-content; max-width: 90vw; text-align: center; }
.co { animation: co-in 1.6s cubic-bezier(.2,.8,.2,1) forwards; }
.co-main { font-family: var(--display); font-weight: 800; font-size: calc(var(--cell) * 1.05); letter-spacing: 0.14em; color: #fff; text-shadow: 0 0 18px var(--accent), 0 0 42px var(--accent), 0 2px 4px rgba(0,0,0,0.8); }
.co-sub { font-size: calc(var(--cell) * 0.6); letter-spacing: 0.3em; font-weight: 600; color: rgba(255,255,255,0.9); text-shadow: 0 0 12px rgba(0,0,0,0.9); margin-top: 4px; }
.co.small .co-main { font-size: calc(var(--cell) * 0.7); letter-spacing: 0.3em; font-family: var(--font); }
.co.big .co-main { font-size: calc(var(--cell) * 1.5); }
.co.huge { animation-duration: 3.4s; }
.co.huge .co-main { font-size: calc(var(--cell) * 2.1); letter-spacing: 0.1em; background: linear-gradient(180deg, #fff, var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; text-shadow: none; filter: drop-shadow(0 0 22px var(--accent)); }
.co.zone .co-main { font-size: calc(var(--cell) * 1.4); letter-spacing: 0.5em; color: var(--zone-color); text-shadow: 0 0 30px #fff; }
.co.stage { animation-duration: 3.4s; }
.co.stage .co-main { font-family: var(--font); font-weight: 600; font-size: calc(var(--cell) * 1.3); letter-spacing: 0.35em; }
.co.stage .co-sub { color: var(--accent); letter-spacing: 0.25em; }
@keyframes co-in {
	0% { opacity: 0; transform: translateY(14px) scale(0.8); }
	10% { opacity: 1; transform: translateY(0) scale(1.06); }
	22% { transform: translateY(0) scale(1); }
	70% { opacity: 1; }
	100% { opacity: 0; transform: translateY(-30px) scale(1.04); }
}

/* ---------- screens ---------- */
.screen { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(2,4,14,0.55); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); z-index: 10; padding: 20px; overflow: auto; }
#screen-splash { cursor: pointer; }
.splash { text-align: center; animation: fadein 1.2s ease-out both; }
.wordmark { font-family: var(--display); font-weight: 800; font-size: clamp(38px, 9vw, 96px); letter-spacing: 0.22em; padding-left: 0.22em; background: linear-gradient(180deg, #fff 20%, var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 28px color-mix(in srgb, var(--accent) 55%, transparent)); }
.wordmark.small { font-size: clamp(28px, 5vw, 48px); margin-bottom: 18px; }
.tag { margin-top: 8px; font-size: clamp(14px, 2.2vw, 22px); letter-spacing: 0.35em; color: rgba(255,255,255,0.7); }
.press { margin-top: 56px; font-size: 16px; letter-spacing: 0.3em; color: #fff; animation: breathe 2s ease-in-out infinite; }
.fine { margin-top: 18px; font-size: 12px; letter-spacing: 0.15em; color: rgba(255,255,255,0.4); }
@keyframes fadein { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.panel { width: min(520px, 100%); text-align: center; background: rgba(4,8,20,0.55); border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); border-radius: 16px; padding: 28px 28px 24px; box-shadow: 0 0 60px color-mix(in srgb, var(--accent) 18%, transparent), inset 0 0 40px rgba(0,0,0,0.4); animation: fadein 0.5s ease-out both; }
.panel .h { font-family: var(--display); font-weight: 800; letter-spacing: 0.3em; font-size: 26px; margin-bottom: 18px; color: #fff; text-shadow: 0 0 20px var(--accent); }
.panel button { display: block; width: 100%; margin: 10px auto 0; padding: 13px 16px; font: 700 17px var(--font); letter-spacing: 0.25em; color: #fff; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.25); border-radius: 10px; cursor: pointer; transition: transform 0.12s, background 0.12s, border-color 0.12s; }
.panel button:hover { background: rgba(255,255,255,0.14); transform: translateY(-1px); }
.panel button.primary { background: color-mix(in srgb, var(--accent) 28%, rgba(255,255,255,0.05)); border-color: var(--accent); box-shadow: 0 0 24px color-mix(in srgb, var(--accent) 45%, transparent); }
.panel button.primary:hover { background: color-mix(in srgb, var(--accent) 45%, rgba(255,255,255,0.05)); }
.panel button kbd { margin-left: 8px; opacity: 0.7; }
.selector { display: flex; align-items: center; gap: 10px; margin: 6px 0 16px; }
.selector .arrow { width: 48px; flex: none; margin: 0; padding: 10px 0; font-size: 28px; line-height: 1; }
.sel-body { flex: 1; min-height: 84px; }
.sel-index { font-size: 12px; letter-spacing: 0.4em; color: rgba(255,255,255,0.5); }
.sel-name { font-size: 30px; font-weight: 700; letter-spacing: 0.12em; margin-top: 4px; text-shadow: 0 0 18px var(--accent); }
.sel-sub { font-size: 14px; letter-spacing: 0.12em; color: var(--accent); margin-top: 2px; }
.hi { margin-top: 14px; font-size: 13px; letter-spacing: 0.35em; color: rgba(255,255,255,0.5); }
.hi b { color: #fff; margin-left: 6px; }
.controls { margin-top: 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 6px 14px; text-align: left; font-size: 13px; letter-spacing: 0.08em; color: rgba(255,255,255,0.75); }
.controls .touch { grid-column: 1 / -1; font-size: 11px; color: rgba(255,255,255,0.4); margin-top: 4px; letter-spacing: 0.05em; }
.volumes { margin-top: 18px; display: flex; gap: 18px; justify-content: center; font-size: 12px; letter-spacing: 0.3em; color: rgba(255,255,255,0.6); }
.volumes label { display: flex; align-items: center; gap: 8px; }
.volumes input { width: 110px; accent-color: var(--accent); }
.res-score { font-family: var(--display); font-weight: 800; font-size: clamp(36px, 7vw, 64px); letter-spacing: 0.08em; text-shadow: 0 0 24px var(--accent); }
.record { display: inline-block; margin-top: 6px; padding: 3px 12px; font-size: 12px; letter-spacing: 0.35em; border: 1px solid var(--accent); border-radius: 999px; color: var(--accent); animation: breathe 1.2s ease-in-out infinite; }
.res-stage { margin-top: 10px; font-size: 14px; letter-spacing: 0.2em; color: rgba(255,255,255,0.6); }
.res-stage b { color: #fff; }
.res-stats { margin: 16px 0 6px; display: grid; grid-template-columns: 1fr 1fr; gap: 6px 18px; text-align: left; font-size: 14px; letter-spacing: 0.08em; }
.rs { display: flex; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,0.08); padding-bottom: 3px; color: rgba(255,255,255,0.65); }
.rs b { color: #fff; }
@media (max-width: 700px) {
	.controls { display: none; }
	.panel { padding: 22px 18px 18px; }
	.sel-name { font-size: 24px; }
}