/* ============================================================
   SuperMac Kart — presentation layer
   Look: classic Platinum + Aqua, with arcade HUD typography.
   ============================================================ */

:root {
  --aqua:      #3f8ae0;
  --aqua-lite: #7fc4ff;
  --amber:     #ffb020;
  --platinum:  #dcdcdc;
  --ink:       #10131a;
  --panel:     rgba(12, 16, 24, .72);
  --panel-br:  rgba(255, 255, 255, .16);
  --hud-font:  "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: #05070c;
  overflow: hidden;
  font-family: var(--hud-font);
  color: #fff;
  -webkit-font-smoothing: antialiased;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

/* The stage keeps a 16:9 letterbox centred in the viewport. */
#stage {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
}

/* WebGL canvas fills the viewport; the renderer owns its pixel size. */
#screen {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  background: #0a0e16;
}

.hidden { display: none !important; }

/* ============================================================
   HUD
   ============================================================ */

#hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 2px 10px rgba(0, 0, 0, .65);
}

#hud .label {
  display: block;
  font-size: clamp(9px, 1.1vw, 15px);
  letter-spacing: .34em;
  opacity: .82;
  font-weight: 700;
}

/* --- lap counter (top left) --- */
#lapBox {
  position: absolute;
  top: 2.2%;
  left: 2.4%;
  line-height: .92;
}
#lapNow {
  font-size: clamp(34px, 5.4vw, 78px);
  font-weight: 800;
  font-style: italic;
  letter-spacing: -.02em;
}
#lapTotal {
  font-size: clamp(18px, 2.6vw, 38px);
  font-weight: 700;
  font-style: italic;
  opacity: .78;
}

/* --- clock (top right) --- */
#timeBox {
  position: absolute;
  top: 2.2%;
  right: 2.4%;
  text-align: right;
  line-height: .95;
}
#timeMain {
  font-size: clamp(28px, 4.2vw, 60px);
  font-weight: 800;
  font-style: italic;
}
#timeFrac {
  font-size: clamp(18px, 2.6vw, 38px);
  font-weight: 800;
  font-style: italic;
  color: var(--amber);
}

/* --- big position (left) --- */
#posBox {
  position: absolute;
  left: 2.6%;
  top: 47%;
  line-height: .85;
}
#posNum {
  font-size: clamp(46px, 8vw, 116px);
  font-weight: 800;
  font-style: italic;
}
#posOrd {
  font-size: clamp(18px, 2.8vw, 40px);
  font-weight: 800;
  font-style: italic;
  opacity: .9;
}
#gapBox {
  margin-top: .5em;
  display: inline-flex;
  align-items: center;
  gap: .7em;
  padding: .38em .95em;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--panel-br);
  backdrop-filter: blur(6px);
  font-size: clamp(11px, 1.5vw, 20px);
  font-weight: 700;
}
.gapLabel { color: var(--amber); letter-spacing: .18em; }

/* --- standings (right) --- */
#standings {
  position: absolute;
  right: 2.2%;
  top: 33%;
  display: flex;
  flex-direction: column;
  gap: .18em;
  font-size: clamp(10px, 1.35vw, 19px);
  font-weight: 700;
  letter-spacing: .08em;
}
.stRow {
  display: flex;
  align-items: center;
  gap: .6em;
  padding: .26em .8em .26em .55em;
  border-radius: 999px;
  border: 1px solid transparent;
}
.stRow.me {
  background: var(--panel);
  border-color: rgba(255, 176, 32, .55);
}
.stPos { width: 2.4em; text-align: right; opacity: .85; }
.stPos i { font-size: .62em; font-style: normal; opacity: .8; }
.stDot {
  width: .62em;
  height: .62em;
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
  background: currentColor;
}
.stName { min-width: 7.2em; }

/* --- nitro meter --- */
#nitroBox {
  position: absolute;
  left: 2.6%;
  bottom: 6%;
  width: clamp(150px, 17vw, 260px);
}
#nitroBar {
  position: relative;
  height: clamp(10px, 1.5vw, 20px);
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--panel-br);
  overflow: hidden;
}
/* quarter ticks: the bar is a tank now, so it needs graduations */
#nitroBar::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(90deg,
    transparent 0 calc(25% - 1px), rgba(0, 0, 0, .45) calc(25% - 1px) 25%);
}
#nitroFill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, #0af, #6f6, #ff0, #f60);
  transition: filter .12s linear;
}
#nitroFill.low { filter: saturate(.25) brightness(.7); }
#nitroFill.burn { animation: burn .28s linear infinite; }
@keyframes burn {
  0%, 100% { filter: brightness(1.35); }
  50%      { filter: brightness(.75); }
}
#nitroLabel {
  margin-top: .42em;
  font-size: clamp(9px, 1.05vw, 14px);
  letter-spacing: .28em;
  font-weight: 700;
  opacity: .85;
}
#nitroLabel .key {
  padding: .1em .5em;
  border: 1px solid var(--panel-br);
  border-radius: 5px;
  background: var(--panel);
  letter-spacing: .1em;
}

/* --- minimap + speedo pods --- */
#mapBox, #speedoBox {
  position: absolute;
  bottom: 3.2%;
  padding: .55em;
  border-radius: 18px;
  background: var(--panel);
  border: 1px solid var(--panel-br);
  backdrop-filter: blur(8px);
}
#mapBox { left: 50%; transform: translateX(-50%); }
#speedoBox { right: 2.4%; }
#mapBox canvas, #speedoBox canvas {
  display: block;
  width: clamp(130px, 15vw, 230px);
  height: auto;
}

/* --- centre messages (countdown / lap flash) --- */
#centerMsg {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: clamp(50px, 12vw, 170px);
  font-weight: 800;
  font-style: italic;
  letter-spacing: -.02em;
  opacity: 0;
}
#centerMsg.show { animation: pop .9s ease-out; }
@keyframes pop {
  0%   { opacity: 0; transform: scale(1.9); }
  18%  { opacity: 1; transform: scale(1); }
  70%  { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(.92); }
}

/* Sits over sky that ranges from near-white to near-black, so it carries
   its own backing rather than relying on a text shadow. */
#popup {
  position: absolute;
  left: 50%;
  top: 20%;
  transform: translateX(-50%);
  padding: .35em 1em;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid rgba(255, 176, 32, .5);
  backdrop-filter: blur(6px);
  white-space: nowrap;
  font-size: clamp(13px, 1.8vw, 26px);
  font-weight: 800;
  font-style: italic;
  letter-spacing: .06em;
  color: var(--amber);
  opacity: 0;
}
#popup.show { animation: rise 1s ease-out; }
@keyframes rise {
  0%   { opacity: 0; transform: translate(-50%, 14px); }
  22%  { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, -22px); }
}

/* ============================================================
   Touch controls
   ============================================================ */
#touch {
  position: absolute;
  inset: auto 0 0 0;
  padding: 1.2vh 2vw 2.4vh;
  display: flex;
  gap: 2vw;
  justify-content: space-between;
  pointer-events: none;
}
.tbtn {
  pointer-events: auto;
  flex: 0 0 auto;
  min-width: 15vw;
  padding: 2.4vh 0;
  text-align: center;
  font-weight: 800;
  font-size: clamp(14px, 2.4vw, 24px);
  border-radius: 16px;
  background: rgba(10, 14, 22, .6);
  border: 1px solid var(--panel-br);
  backdrop-filter: blur(6px);
}
.tbtn:active { background: rgba(63, 138, 224, .55); }
.tbtn.wide { min-width: 26vw; }

/* ============================================================
   Menus
   ============================================================ */

#menu {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background:
    radial-gradient(120% 90% at 50% -10%, rgba(63, 138, 224, .40), transparent 60%),
    repeating-linear-gradient(180deg, rgba(255, 255, 255, .035) 0 2px, transparent 2px 4px),
    linear-gradient(180deg, #0b1220 0%, #05070c 100%);
}
#menu.hidden { display: none; }

.screen {
  width: min(940px, 92vw);
  max-height: 96vh;
  overflow-y: auto;
  text-align: center;
  padding: 2vh 1vw;
}

.logo { line-height: .82; margin-bottom: 2.2vh; }
.logo-super {
  font-size: clamp(22px, 4vw, 46px);
  font-weight: 800;
  letter-spacing: .62em;
  text-indent: .62em;
  color: var(--platinum);
  opacity: .9;
}
.logo-mac {
  font-size: clamp(56px, 11vw, 132px);
  font-weight: 800;
  font-style: italic;
  letter-spacing: -.03em;
  background: linear-gradient(180deg, #ffd34d 0%, #ff7a3d 34%, #e8447a 58%, #7b5bff 78%, #3fb8f5 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 6px 26px rgba(255, 122, 61, .35));
}
.logo-kart {
  display: block;
  font-size: .34em;
  letter-spacing: .5em;
  text-indent: .5em;
  color: #fff;
  -webkit-text-fill-color: #fff;
  filter: none;
  margin-top: .3em;
}
.tagline {
  margin: 0 0 3.4vh;
  opacity: .72;
  font-size: clamp(12px, 1.5vw, 18px);
  letter-spacing: .06em;
}

h2 {
  margin: 0 0 1.8vh;
  font-size: clamp(18px, 2.6vw, 32px);
  font-weight: 800;
  letter-spacing: .3em;
  text-indent: .3em;
  color: var(--platinum);
}

button {
  font-family: inherit;
  font-weight: 800;
  letter-spacing: .16em;
  font-size: clamp(12px, 1.5vw, 18px);
  color: #fff;
  padding: .95em 2.1em;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .28);
  background: linear-gradient(180deg, var(--aqua-lite), var(--aqua) 52%, #2b6ec2);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .55), 0 8px 24px rgba(0, 0, 0, .45);
  cursor: pointer;
  transition: transform .1s ease, filter .12s ease;
}
button:hover { filter: brightness(1.12); }
button:active { transform: translateY(2px); }
button.ghost {
  background: rgba(255, 255, 255, .06);
  box-shadow: none;
  border-color: rgba(255, 255, 255, .22);
}
button.big { font-size: clamp(14px, 2vw, 24px); padding: 1.05em 2.8em; }

.row { display: flex; gap: 1.2em; justify-content: center; margin-top: 2vh; flex-wrap: wrap; }
.row.col { flex-direction: column; align-items: center; }
.hint {
  margin-top: 3.2vh;
  opacity: .55;
  font-size: clamp(10px, 1.15vw, 14px);
  letter-spacing: .1em;
}

/* --- selection grids --- */
.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .8em;
}
.grid.tracks { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 700px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .grid.tracks { grid-template-columns: 1fr; }
}

.card {
  cursor: pointer;
  padding: .6em .5em .7em;
  border-radius: 16px;
  background: rgba(255, 255, 255, .05);
  border: 2px solid rgba(255, 255, 255, .12);
  transition: transform .12s ease, border-color .12s ease, background .12s ease;
}
.card:hover { transform: translateY(-3px); background: rgba(255, 255, 255, .09); }
.card.sel {
  border-color: var(--amber);
  background: rgba(255, 176, 32, .14);
  box-shadow: 0 10px 30px rgba(255, 176, 32, .18);
}
.card canvas { display: block; width: 100%; height: auto; }
/* Cap mascot portraits so both rows plus the stat block fit a 720p screen. */
#charGrid .card canvas {
  height: clamp(72px, 14vh, 140px);
  object-fit: contain;
}
/* Track previews are wide; cap their height so all four circuits fit on
   a 720p screen without the picker turning into a scroller. */
.grid.tracks .card canvas {
  height: clamp(84px, 15vh, 150px);
  border-radius: 10px;
}
.grid.tracks .cdesc {
  min-height: 2.7em;
}
.card .cname {
  margin-top: .55em;
  font-weight: 800;
  letter-spacing: .16em;
  font-size: clamp(10px, 1.2vw, 15px);
}
.card .cdesc {
  margin-top: .3em;
  opacity: .62;
  font-size: clamp(9px, 1.05vw, 13px);
  letter-spacing: .04em;
  line-height: 1.35;
}
.card .cflag {
  display: inline-block;
  margin-top: .5em;
  padding: .2em .7em;
  border-radius: 999px;
  font-size: clamp(9px, 1vw, 12px);
  letter-spacing: .16em;
  font-weight: 800;
  background: rgba(255, 255, 255, .1);
}

.stats {
  margin: 1.6vh auto 0;
  width: min(560px, 92vw);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .4em 1.2em;
}
/* the blurb spans both stat columns */
.stats > .cdesc { grid-column: 1 / -1; }
.statRow {
  display: grid;
  grid-template-columns: 5.2em 1fr;
  align-items: center;
  gap: .6em;
  font-size: clamp(9px, 1.05vw, 13px);
  letter-spacing: .12em;
  font-weight: 700;
  opacity: .9;
}
.meter {
  height: 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .1);
  overflow: hidden;
}
.meter span {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--aqua-lite), var(--amber));
}

/* --- results board --- */
.board {
  width: min(600px, 92vw);
  margin: 0 auto;
  display: grid;
  gap: .4em;
}
.bRow {
  display: grid;
  grid-template-columns: 3.2em 1.6em 1fr auto;
  align-items: center;
  gap: .9em;
  padding: .7em 1.1em;
  border-radius: 12px;
  background: rgba(255, 255, 255, .05);
  font-weight: 700;
  letter-spacing: .1em;
  font-size: clamp(11px, 1.4vw, 17px);
  text-align: left;
}
.bRow.me { background: rgba(255, 176, 32, .16); border: 1px solid rgba(255, 176, 32, .45); }
.bRow .bPos { font-weight: 800; font-style: italic; opacity: .9; }
.bRow .bTime { font-variant-numeric: tabular-nums; opacity: .85; }
#resultTitle { color: var(--amber); }