/* Mobile-first. The base rules below are the phone layout: a fixed game
   viewport with the HUD and thumb controls layered over the playfield.
   Everything desktop-only lives in the min-width query at the bottom. */

:root {
  color-scheme: dark;
  --bg: #101515;
  --panel: #172a2a;
  --panel-2: #243039;
  --ink: #081020;
  --text: #f6fff8;
  --muted: #bad7d4;
  --red: #ff4f76;
  --coin: #ffd84d;
  --cyan: #31e6c2;
  --amber: #ffcf4a;

  /* Playfield metrics. The control deck is a fixed strip at the bottom and
     the canvas takes the rest, so the two never overlap. */
  --control-h: 148px;
  --stick: 112px;
  --jump: 86px;
  --safe-t: max(8px, env(safe-area-inset-top));
  --safe-b: max(10px, env(safe-area-inset-bottom));
  --safe-l: max(12px, env(safe-area-inset-left));
  --safe-r: max(12px, env(safe-area-inset-right));
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  overflow: hidden;
  overscroll-behavior: none;
}

body {
  background: #142625;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-rendering: geometricPrecision;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

button,
a {
  color: inherit;
}

button {
  min-height: 44px;
  border: 3px solid var(--ink);
  background: var(--red);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.3);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

[hidden] { display: none !important; }
button:disabled { opacity: 0.45; cursor: default; }
.story-cta:focus-visible,
button:focus-visible {
  outline: 3px solid var(--coin);
  outline-offset: 3px;
}

.shell {
  position: relative;
  width: 100%;
  height: 100svh;
  height: 100dvh;
  overflow: hidden;
}

.game-shell {
  position: absolute;
  inset: 0;
}

/* The brand, mission track and footer are page furniture, not gameplay.
   A phone screen is worth more as playfield. */
.brand,
.mission-track,
.footer,
.control-hint {
  display: none;
}

/* --- Overlaid chrome ---------------------------------------------------- */

.topbar {
  position: absolute;
  z-index: 12;
  top: var(--safe-t);
  right: var(--safe-r);
  display: flex;
  align-items: center;
  gap: 6px;
}

.top-actions {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 5px;
}

.top-actions button {
  min-height: 36px;
  padding: 4px 10px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 8px;
  background: rgba(16, 33, 38, 0.87);
  box-shadow: none;
  font-size: 11px;
}

/* Restarting mid-run is a stray-thumb risk beside Pause, and the game-over
   screen already offers a fresh run. */
#restartButton {
  display: none;
}

.hud {
  position: absolute;
  z-index: 10;
  top: var(--safe-t);
  left: var(--safe-l);
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: calc(100% - 170px);
  padding: 7px 10px;
  border-radius: 10px;
  background: rgba(16, 33, 38, 0.85);
}

.hud div {
  display: flex;
  align-items: baseline;
  gap: 4px;
  min-width: 0;
}

/* The zone banner announces the zone, and the score already implies the
   signal count, so both panels are dead weight over a phone playfield. */
.hud div:first-child,
.hud div:nth-child(2) {
  display: none;
}

.hud span {
  color: var(--muted);
  font-size: 10px;
}

.hud strong {
  overflow: hidden;
  color: var(--coin);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Progress toward the 1000-point finish line. */
.score-track {
  position: absolute;
  z-index: 10;
  top: calc(var(--safe-t) + 44px);
  left: var(--safe-l);
  width: 110px;
  height: 4px;
  border-radius: 2px;
  background: rgba(12, 22, 25, 0.72);
  overflow: hidden;
}

.score-track span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--coin));
  transition: width 220ms ease-out;
}

@media (prefers-reduced-motion: reduce) {
  .score-track span { transition: none; }
}

/* --- Playfield ---------------------------------------------------------- */

.canvas-frame {
  position: absolute;
  inset: 0 0 var(--control-h);
  background: var(--ink);
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: auto;
  object-fit: fill;
  touch-action: none;
}

/* --- Thumb controls ----------------------------------------------------- */

.controls {
  position: absolute;
  z-index: 11;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  height: var(--control-h);
  padding: 8px max(20px, env(safe-area-inset-right)) var(--safe-b) max(20px, env(safe-area-inset-left));
  gap: 16px;
  background: linear-gradient(0deg, #0b1727, #152c36);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  /* The deck is only a backdrop; the stick and buttons opt back in below, so
     a thumb resting on the strip never swallows a touch. */
  pointer-events: none;
}

.joystick-group,
.action-controls {
  pointer-events: auto;
}

.joystick-group {
  display: grid;
  justify-items: center;
  gap: 6px;
}

.joystick {
  position: relative;
  width: var(--stick);
  height: var(--stick);
  border: 2px solid rgba(255, 255, 255, 0.44);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(82, 122, 123, 0.6), rgba(25, 50, 56, 0.53));
  box-shadow: inset 0 3px 16px rgba(8, 16, 32, 0.6), 0 4px 0 var(--ink);
  touch-action: none;
  cursor: grab;
}

.joystick.is-active {
  border-color: var(--cyan);
  cursor: grabbing;
}

/* Drawn in CSS rather than set as text: the direction hints must render the
   same everywhere, with no dependency on the font carrying arrow glyphs. */
.joystick-arrows {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 13px;
  pointer-events: none;
}

.joystick-arrows i {
  width: 11px;
  height: 16px;
  background: rgba(246, 255, 248, 0.45);
}

.joystick-arrows i:first-child {
  clip-path: polygon(100% 0, 100% 100%, 0 50%);
}

.joystick-arrows i:last-child {
  clip-path: polygon(0 0, 0 100%, 100% 50%);
}

.joystick-thumb {
  position: absolute;
  left: 30%;
  top: 30%;
  width: 40%;
  height: 40%;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  background: linear-gradient(145deg, #63f5d6, #229888);
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.53);
  pointer-events: none;
}

.action-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.controls button {
  touch-action: none;
}

.controls .jump-button {
  display: grid;
  align-content: center;
  width: var(--jump);
  height: var(--jump);
  min-width: var(--jump);
  border-radius: 50%;
  background: rgba(49, 230, 194, 0.85);
  box-shadow: 0 5px 0 #137266;
  color: var(--ink);
}

.jump-glyph {
  width: 18px;
  height: 12px;
  margin: 0 auto 3px;
  background: currentColor;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

.controls .talk-button {
  min-width: 44px;
  min-height: 44px;
  padding: 0 10px;
  border-radius: 14px;
  background: rgba(22, 44, 57, 0.79);
  font-size: 11px;
}

.controls button.is-held {
  filter: brightness(1.25);
  transform: translateY(3px);
  box-shadow: none;
}

/* --- Story screens ------------------------------------------------------ */

.story-modal {
  position: fixed;
  inset: 12px;
  z-index: 30;
  display: none;
  grid-template-columns: 1fr;
  justify-items: start;
  align-content: start;
  gap: 10px;
  width: auto;
  max-width: 600px;
  height: fit-content;
  max-height: calc(100dvh - 24px);
  margin: auto;
  padding: 16px;
  border: 4px solid var(--ink);
  background:
    linear-gradient(135deg, rgba(49, 230, 194, 0.16), transparent 45%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), transparent),
    rgba(20, 34, 38, 0.97);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(8px);
  overflow: auto;
}

.story-modal.is-open {
  display: grid;
}

.story-copy {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--coin);
  font-weight: 900;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 14px;
  max-width: 100%;
  font-size: 1.62rem;
  line-height: 1.08;
  overflow-wrap: break-word;
  text-wrap: balance;
}

p {
  margin-top: 0;
  color: #eef5ff;
  font-size: 0.92rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.story-modal button {
  min-height: 42px;
  padding: 0 14px;
}

.story-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 18px;
  border: 3px solid var(--ink);
  background: var(--cyan);
  color: var(--ink);
  font-weight: 900;
  text-decoration: none;
}

.modal-art {
  position: relative;
  display: grid;
  justify-items: center;
  align-items: end;
  width: 100%;
  min-height: 68px;
}

.modal-hero {
  display: none;
  width: min(92px, 30vw);
  max-width: 100%;
  max-height: 98px;
  object-fit: contain;
  filter: drop-shadow(0 18px 24px rgba(0, 0, 0, 0.38));
  pointer-events: none;
}

.modal-hero.is-visible {
  display: block;
}

.modal-mascot {
  position: absolute;
  right: 2px;
  bottom: 2px;
  display: none;
  width: 58px;
  max-width: 100%;
  filter: drop-shadow(0 16px 22px rgba(0, 0, 0, 0.35));
  pointer-events: none;
}

.modal-mascot.is-visible {
  display: block;
}

/* --- Small phones ------------------------------------------------------- */

@media (max-width: 360px) {
  :root {
    --stick: 100px;
    --jump: 78px;
  }

  .controls {
    padding-left: 8px;
    padding-right: 8px;
    gap: 8px;
  }

  .action-controls {
    gap: 8px;
  }
}

/* --- Phone landscape ---------------------------------------------------- */

@media (orientation: landscape) and (max-height: 540px) {
  :root {
    --control-h: 88px;
    --stick: 76px;
    --jump: 68px;
  }

  /* The controls used to float over the playfield here. They landed straight
     on the ground band -- which in landscape is the bottom sliver of the
     screen, where all the running happens -- so a thumb covered the obstacle
     it was there to jump. They get their own strip, and the camera crops the
     dead sky to pay for it. */
  .controls {
    padding-top: 5px;
  }

  .hud div:first-child {
    display: flex;
  }

  .hud div:first-child span {
    display: none;
  }

  .hud strong {
    font-size: 12px;
  }

  .score-track {
    top: calc(var(--safe-t) + 38px);
  }

  .story-modal {
    padding: 16px 22px;
  }

  .modal-art {
    display: none;
  }

  .story-modal h1 {
    margin-bottom: 8px;
    font-size: 24px;
  }

  .story-modal p {
    font-size: 13px;
    line-height: 1.45;
  }

  .eyebrow {
    margin-bottom: 6px;
    font-size: 11px;
  }
}

/* --- Desktop ------------------------------------------------------------
   A mouse-driven window big enough for the whole page: the game becomes a
   document again, with the canvas boxed at 16/9 and the chrome back in
   normal flow. Touch devices keep the game-viewport layout above at any
   size, since a tablet still plays with thumbs. */

@media (min-width: 761px) and (min-height: 541px) and (pointer: fine) {
  html,
  body {
    height: auto;
    min-height: 100%;
    overflow: visible;
    overflow-x: hidden;
  }

  html {
    background: #101515;
  }

  body {
    min-height: 100svh;
    background:
      linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0 2px, transparent 2px 34px),
      linear-gradient(180deg, #142625 0%, #171326 52%, #111515 100%);
  }

  .shell {
    position: static;
    display: grid;
    grid-template-rows: auto 1fr auto;
    width: min(1220px, calc(100% - 28px));
    height: auto;
    min-height: 100svh;
    margin: 0 auto;
    gap: 14px;
    padding: 14px 0;
    padding-bottom: max(14px, env(safe-area-inset-bottom));
    overflow: visible;
  }

  .game-shell {
    position: static;
    display: grid;
    /* hud, score track, mission track, canvas, controls -- all content-sized.
       The canvas is width-driven (width:100% plus a fixed aspect-ratio), so
       handing a row the leftover space only left dead space inside the frame. */
    grid-template-rows: repeat(5, auto);
    align-content: start;
    gap: 10px;
  }

  .topbar,
  .footer,
  .top-actions,
  .brand,
  .controls {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .topbar,
  .footer {
    position: static;
    justify-content: space-between;
  }

  .brand {
    text-decoration: none;
  }

  .brand span:last-child {
    display: grid;
    line-height: 1.1;
  }

  .brand small,
  .footer {
    color: var(--muted);
    font-size: 0.84rem;
  }

  .footer a {
    color: var(--coin);
  }

  .pixel-logo {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border: 3px solid var(--text);
    background: linear-gradient(135deg, var(--cyan), var(--red));
    box-shadow: 4px 4px 0 var(--ink);
    color: var(--text);
    font-weight: 900;
  }

  .top-actions button,
  .controls button {
    background: var(--panel-2);
  }

  .top-actions button {
    min-height: 44px;
    padding: 0 14px;
    border: 3px solid var(--ink);
    border-radius: 0;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.3);
    font-size: 1rem;
  }

  #restartButton {
    display: inline-block;
  }

  .hud {
    position: static;
    display: grid;
    grid-template-columns: 1.6fr repeat(3, 1fr);
    max-width: none;
    gap: 10px;
    padding: 0;
    border-radius: 0;
    background: none;
  }

  .hud div,
  .hud div:first-child,
  .hud div:nth-child(2) {
    display: block;
    min-width: 0;
    padding: 10px 12px;
    border: 3px solid var(--ink);
    background:
      linear-gradient(135deg, rgba(49, 230, 194, 0.12), transparent 44%),
      rgba(20, 34, 38, 0.94);
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.26);
  }

  .hud span {
    color: var(--muted);
    font-size: 0.84rem;
  }

  .hud strong {
    display: block;
    margin-top: 2px;
    font-size: 1rem;
  }

  .score-track {
    position: static;
    width: auto;
    height: 14px;
    border: 3px solid var(--ink);
    border-radius: 0;
  }

  .mission-track {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .mission-track span {
    min-width: 0;
    padding: 9px 12px;
    border: 2px solid rgba(246, 255, 248, 0.2);
    background: rgba(12, 22, 25, 0.66);
    color: var(--muted);
    font-size: 0.84rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .mission-track strong {
    margin-right: 6px;
    color: var(--text);
  }

  .mission-track span.is-active {
    border-color: var(--cyan);
    background: rgba(49, 230, 194, 0.14);
    color: var(--text);
  }

  .mission-track span.is-complete {
    border-color: var(--amber);
  }

  .canvas-frame {
    position: relative;
    inset: auto;
    border: 5px solid var(--ink);
    background:
      linear-gradient(135deg, rgba(49, 230, 194, 0.1), transparent 38%),
      var(--ink);
    box-shadow: 0 18px 0 rgba(0, 0, 0, 0.22);
  }

  canvas {
    height: auto;
    aspect-ratio: 16 / 9;
  }

  .controls {
    position: static;
    justify-content: space-between;
    height: auto;
    padding: 12px 16px;
    gap: 16px;
    background: none;
    pointer-events: auto;
  }

  .control-hint {
    display: block;
    color: var(--muted);
    font-size: 10px;
    letter-spacing: 0.12em;
  }

  .joystick {
    --stick: 120px;
    border-color: rgba(49, 230, 194, 0.45);
    background: radial-gradient(circle, #243e40 0 30%, #142527 32% 65%, #294346 67%);
  }

  .controls .jump-button {
    --jump: 92px;
    background: var(--cyan);
  }

  .controls .talk-button {
    min-width: 52px;
    min-height: 48px;
    background: var(--panel-2);
    font-size: 1rem;
  }

  .story-modal {
    position: absolute;
    inset: 24px;
    grid-template-columns: minmax(0, 1fr) minmax(150px, 210px);
    justify-items: stretch;
    align-items: center;
    align-content: center;
    gap: 22px;
    max-width: 820px;
    max-height: none;
    margin: auto;
    padding: clamp(20px, 4vw, 34px);
    overflow: visible;
  }

  .story-modal button {
    min-height: 44px;
    padding: 0 18px;
  }

  h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.05;
  }

  p {
    font-size: 1rem;
    line-height: 1.65;
    overflow-wrap: normal;
  }

  .modal-art {
    width: auto;
    min-height: 230px;
  }

  .modal-hero {
    width: min(220px, 28vw);
    max-height: 270px;
  }

  .modal-mascot {
    right: -12px;
    bottom: -10px;
    width: min(116px, 14vw);
  }
}

/* Desktop in a short window: tighten the vertical rhythm so the canvas still
   fits without scrolling. */
@media (min-width: 761px) and (min-height: 541px) and (max-height: 760px) and (pointer: fine) {
  .shell {
    gap: 9px;
    padding-top: 9px;
  }

  .hud div {
    padding: 8px 10px;
  }

  .footer {
    font-size: 0.78rem;
  }
}