:root { color-scheme: dark; --mint: #83f8d8; --paper: #f6f3e9; }
html, body { background: #1b272c; font-family: 'Helvetica Neue', Arial, sans-serif; }
#ui { color: var(--paper); }
#edition { position: absolute; left: 38px; top: 30px; display: flex; gap: 12px; align-items: center;
  color: var(--paper); font-size: 10px; font-weight: 600; letter-spacing: .2em; text-shadow: 0 2px 12px #0008; }
#edition svg { width: 25px; height: 25px; }
#edition span { border-left: 1px solid #ffffff55; padding-left: 12px; opacity: .8; }
#edition .release { border: 1px solid #f6f3e955; padding: 4px 6px; font-size: 9px; }
#hud { opacity: 0; transition: opacity .3s; top: max(24px, env(safe-area-inset-top)); gap: 30px;
  left: 50%; right: auto; transform: translateX(-50%); padding: 13px 27px 12px;
  border: 1px solid #ffffff26; border-radius: 12px; background: #14242b83; backdrop-filter: blur(12px); }
.playing #hud { opacity: 1; }
#hudTime { font-size: 28px; font-weight: 500; margin-top: 4px; letter-spacing: -.04em; }
#hudBest { font-size: 16px; color: var(--mint); margin-top: 3px; }
#segName { font-size: 8px; margin-top: 4px; color: #f4d7a7; }
#speedWrap { opacity: 0; bottom: max(24px, env(safe-area-inset-bottom)); }
.playing #speedWrap { opacity: 1; }
#hudSpeed { height: 4px; }
#hudSpeedFill { background: linear-gradient(90deg, #6cd6bf, #9efce1 70%, #f7cf96); }
#start { padding: 0 48px 48px; align-items: flex-start;
  background: linear-gradient(0deg, #081518db, #0a161940 30%, transparent 63%); }
#start::before { content: 'THE CITY IS YOURS'; font-size: 10px; letter-spacing: .35em; font-weight: 700;
  color: var(--mint); margin-bottom: 15px; }
#title { font-size: clamp(42px, 6.4vw, 86px); text-align: left; line-height: .88;
  font-weight: 900; letter-spacing: -.05em; text-shadow: 0 3px 40px #08151880; }
#title span { display: block; color: var(--paper); }
#sub { margin-top: 17px; font-size: 11px; letter-spacing: .13em; opacity: .72; }
#keys, #keysTouch { position: absolute; right: 48px; bottom: 52px; width: 286px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; justify-content: flex-start;
  padding: 20px; border: 1px solid #ffffff24; border-radius: 12px;
  background: #0f20293d; backdrop-filter: blur(8px); }
#keys div, .keys div { white-space: normal; font-size: 10px; line-height: 1.6; letter-spacing: .02em; opacity: .85; }
#keys b, .keys b { display: block; width: fit-content; margin-bottom: 4px; font-size: 9px;
  border: 1px solid #ffffff3d; background: #ffffff0a; border-radius: 3px; padding: 1px 5px; }
#go { pointer-events: auto; cursor: pointer; font-family: inherit; border: none;
  margin-top: 25px; padding: 15px 22px; border-radius: 5px; background: var(--mint);
  color: #16352e; font-size: 11px; letter-spacing: .15em; box-shadow: 0 4px 25px #0002;
  animation: none; transition: background .15s, transform .15s; }
#go::after { content: ' →'; font-size: 18px; margin-left: 25px; vertical-align: -1px; }
#go:hover { transform: translateY(-2px); background: #b1ffe9; }
#go:focus-visible { outline: 2px solid #fff; outline-offset: 5px; }
#finish { padding: 20px; }
#finTitle { color: var(--mint); letter-spacing: -.04em; font-size: clamp(32px, 6vw, 68px); }
#finTime { font-weight: 500; letter-spacing: -.06em; }
#finWhy { letter-spacing: .07em; }
#finGo { pointer-events: auto; cursor: pointer; padding: 12px 22px; border: 1px solid #ffffff50;
  border-radius: 5px; font-family: inherit; background: #ffffff0b; color: var(--paper); }
#cue { bottom: 21%; }
#cue b { font-size: clamp(19px, 3vw, 30px); letter-spacing: .06em; }
#cue i { letter-spacing: .08em; }
@media (pointer: coarse) {
  #keys { display: none; }
  #keysTouch.touchonly { display: grid !important; }
}
@media (max-width: 850px) {
  #edition { left: 22px; top: 20px; font-size: 9px; }
  #start { padding: 0 24px 32px; }
  #keys, #keysTouch { right: 24px; width: 245px; bottom: 32px; padding: 14px; gap: 7px 12px; }
  #title { font-size: 54px; }
  #sub { max-width: 240px; font-size: 10px; line-height: 1.6; }
  .playing #edition { opacity: 0; }
}
@media (max-width: 600px) and (orientation: portrait) {
  #start { align-items: center; padding: 0 20px max(30px, env(safe-area-inset-bottom)); }
  #start::before { margin-bottom: 12px; font-size: 8px; }
  #title { text-align: center; font-size: 54px; }
  #sub { max-width: none; text-align: center; font-size: 9px; margin-top: 12px; }
  #keys, #keysTouch.touchonly { display: none !important; }
  #go { margin-top: 20px; }
  #touchHint { display: block; margin-top: 12px; font-size: 9px; opacity: .7; letter-spacing: .03em; }
  #edition { left: 20px; top: max(20px, env(safe-area-inset-top)); }
  #edition span { font-size: 8px; }
  #hud { top: 18px; gap: 15px; padding: 10px 18px; }
  #hudTime { font-size: 25px; }
  #cue { bottom: 24%; width: 90%; }
}
#touchHint { display: none; }
@media (pointer: coarse) and (orientation: portrait) { #touchHint { display: block; } }
@media (max-height: 480px) and (orientation: landscape) {
  #edition { top: 14px; left: 22px; }
  #start { padding: 0 24px 22px; }
  #start::before { font-size: 8px; margin-bottom: 8px; }
  #title { font-size: 42px; }
  #sub { font-size: 9px; margin-top: 10px; max-width: 280px; }
  #go { margin-top: 14px; padding: 9px 15px; }
  #keys, #keysTouch { bottom: 22px; padding: 12px; gap: 4px 12px; }
  #keys div, .keys div { font-size: 9px; }
  #hud { top: 10px; padding: 7px 18px; }
  #hudTime { font-size: 22px; }
  #speedWrap { bottom: 14px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

#start.gone #go, #finish #finGo { pointer-events: none; }
#finish.show #finGo { pointer-events: auto; }