/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100dvh;
}

/* ==========================================================================
   Boing — paper-cutout autumn diorama
   ========================================================================== */

:root {
  --cream: #f2e6c9;
  --ink: #3a2418;
  --shell: #8a5a35;
  --shell-cap: #5c3a20;
  --grass: #5e7a4a;
  --soil: #46311f;
  --spring-top: #c1611c;
  --spring-right: #3f7d52;
  --spring-bottom: #d9a441;
  --spring-left: #8c3a2e;

  --display-font: "Lilita One", ui-rounded, "Segoe UI", sans-serif;
  --body-font: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

body {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--body-font);
  -webkit-tap-highlight-color: transparent;
}

button {
  font-family: inherit;
  -webkit-tap-highlight-color: transparent;
}

/* ---- game canvas ------------------------------------------------------- */

#game {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  background: var(--cream);
  touch-action: none;
}

/* ---- HUD ----------------------------------------------------------------
   visible only while body[data-state="playing"] */

#hud,
#btn-reset-stuck,
#touch-controls,
#key-legend {
  display: none;
  position: fixed;
  z-index: 20;
}

body[data-state="playing"] #hud {
  display: block;
}

#hud {
  top: max(14px, env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%);
}

#hud-timer {
  font-family: var(--display-font);
  font-size: clamp(20px, 5vw, 28px);
  letter-spacing: .02em;
  background: var(--cream);
  color: var(--ink);
  border: 3px solid var(--ink);
  border-radius: 10px;
  padding: 4px 14px 2px;
  box-shadow: 3px 3px 0 var(--ink);
}

body[data-state="playing"] #btn-reset-stuck {
  display: block;
}

#btn-reset-stuck {
  top: max(14px, env(safe-area-inset-top));
  right: max(14px, env(safe-area-inset-right));
  font-family: var(--display-font);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--cream);
  background: var(--soil);
  border: 3px solid var(--ink);
  border-radius: 8px;
  padding: 6px 12px 4px;
  box-shadow: 3px 3px 0 var(--ink);
  cursor: pointer;
  transition: transform .08s ease, box-shadow .08s ease;
}

#btn-reset-stuck:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--ink);
}

/* ---- touch controls (coarse pointer only) -------------------------------
   plus formation mirroring each spring's actual position on the acorn:
        [ D ]
   [ K ]     [ F ]
        [ J ] */

@media (pointer: coarse) {
  body[data-state="playing"] #touch-controls {
    display: grid;
  }
  /* On touch, these are just colored buttons — there's no physical D/F/J/K
     key being pressed, so the letters don't mean anything here (they only
     make sense as a keyboard mapping). Hiding them also removes the text
     node the long-press gesture was trying to select in the first place. */
  .spring-btn .key-hint {
    display: none;
  }
}

#touch-controls {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 8px;
  left: 50%;
  bottom: max(18px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  width: min(62vw, 240px);
  aspect-ratio: 1;
}

.spring-btn {
  position: relative;
  border: 4px solid var(--ink);
  border-radius: 14px;
  background: var(--spring-color, var(--ink));
  box-shadow: 0 0 0 2px var(--ink), 3px 3px 0 var(--ink);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  touch-action: none;
  /* A long-press on the key letter inside the button otherwise gets
     intercepted by the browser's native text-selection/callout gesture
     (the magnifier loupe on iOS, selection handles on Android) instead of
     being treated as "hold to charge" — these suppress that. */
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
  transition: transform .08s ease, box-shadow .08s ease, opacity .15s ease;
}

.spring-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 0 0 0 2px var(--ink), 1px 1px 0 var(--ink);
}

.spring-btn[data-spring="top"]    { grid-column: 2; grid-row: 1; --spring-color: var(--spring-top); }
.spring-btn[data-spring="left"]   { grid-column: 1; grid-row: 2; --spring-color: var(--spring-left); }
.spring-btn[data-spring="right"]  { grid-column: 3; grid-row: 2; --spring-color: var(--spring-right); }
.spring-btn[data-spring="bottom"] { grid-column: 2; grid-row: 3; --spring-color: var(--spring-bottom); }

.spring-btn .key-hint {
  position: relative;
  z-index: 1;
  font-family: var(--display-font);
  font-size: clamp(16px, 4vw, 20px);
  color: var(--cream);
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
  pointer-events: none;
}

.spring-btn .charge-fill {
  position: absolute;
  inset: 0;
  background: var(--cream);
  opacity: .6;
  transform: scaleY(var(--charge, 0));
  transform-origin: bottom;
  pointer-events: none;
}

/* ---- key legend (fine pointer only) --------------------------------- */

@media (pointer: fine) {
  body[data-state="playing"] #key-legend {
    display: grid;
  }
}

#key-legend {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 6px;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  width: 116px;
  aspect-ratio: 1;
  padding: 6px;
  background: rgba(242, 230, 201, .8);
  border: 3px solid var(--ink);
  border-radius: 12px;
}

.legend-key {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--ink);
  border-radius: 8px;
  background: var(--spring-color, var(--ink));
}

.legend-key .key-hint {
  font-family: var(--display-font);
  font-size: 14px;
  color: var(--cream);
}

.legend-key[data-spring="top"]    { grid-column: 2; grid-row: 1; --spring-color: var(--spring-top); }
.legend-key[data-spring="left"]   { grid-column: 1; grid-row: 2; --spring-color: var(--spring-left); }
.legend-key[data-spring="right"]  { grid-column: 3; grid-row: 2; --spring-color: var(--spring-right); }
.legend-key[data-spring="bottom"] { grid-column: 2; grid-row: 3; --spring-color: var(--spring-bottom); }

/* ---- panels (start / results) ------------------------------------------ */

.panel {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px max(20px, env(safe-area-inset-right)) 20px max(20px, env(safe-area-inset-left));
  background: rgba(70, 49, 31, .4);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .25s ease;
}

body[data-state="start"] #panel-start,
body[data-state="results"] #panel-results {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.panel-card {
  width: 100%;
  max-width: 360px;
  max-height: 100%;
  overflow-y: auto;
  background: var(--cream);
  border: 4px solid var(--ink);
  border-radius: 22px 8px 22px 8px;
  box-shadow: 6px 6px 0 var(--ink);
  padding: 24px 22px;
  transform: rotate(-.6deg);
}

.logo-spring {
  display: block;
  width: 56px;
  height: 56px;
  margin: 0 auto 6px;
  filter: drop-shadow(3px 4px 0 rgba(58, 36, 24, .25));
}

.panel-title {
  font-family: var(--display-font);
  font-size: clamp(36px, 11vw, 46px);
  text-align: center;
  letter-spacing: .03em;
  color: var(--spring-top);
  -webkit-text-stroke: 1.5px var(--ink);
  text-shadow: 2px 2px 0 var(--ink);
  transform: rotate(-1.5deg);
  margin-bottom: 10px;
}

.panel-title-results {
  font-size: clamp(26px, 8vw, 32px);
  color: var(--grass);
}

.panel-pitch {
  text-align: center;
  font-size: 14.5px;
  line-height: 1.45;
  margin-bottom: 18px;
}

.howto-heading {
  font-family: var(--display-font);
  font-size: 16px;
  color: var(--ink);
  margin-bottom: 10px;
}

.spring-key-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.spring-key-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(58, 36, 24, .05);
  border-radius: 8px;
  padding: 6px 10px;
}

.key-chip {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--display-font);
  font-size: 14px;
  color: var(--cream);
  background: var(--spring-color, var(--ink));
  border: 2px solid var(--ink);
  border-radius: 6px;
}

.spring-key-row[data-spring="top"]    .key-chip { --spring-color: var(--spring-top); }
.spring-key-row[data-spring="right"]  .key-chip { --spring-color: var(--spring-right); }
.spring-key-row[data-spring="bottom"] .key-chip { --spring-color: var(--spring-bottom); }
.spring-key-row[data-spring="left"]   .key-chip { --spring-color: var(--spring-left); }

.spring-key-desc {
  font-size: 13.5px;
}

/* Instruction text/chips adapt to the control scheme, using the same pointer
   queries as the in-game controls above so the panel matches whichever set is
   shown. Default (keyboard) shows the .fine-only copy; touch swaps to .coarse. */
.coarse-only { display: none; }

@media (pointer: coarse) {
  .fine-only { display: none; }
  .coarse-only { display: inline; }
  /* No physical D/F/J/K keys on touch — keep the colored chip as a pure color
     swatch (reinforcing "track by color") but drop the meaningless letter. */
  .key-chip { font-size: 0; }
}

.howto-note {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--soil);
  margin-bottom: 18px;
}

.howto-note strong {
  color: var(--ink);
}

.result-grid {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 20px;
}

.result-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: rgba(58, 36, 24, .05);
  border: 2px solid var(--ink);
  border-radius: 10px;
  padding: 10px 6px;
}

.result-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--soil);
}

.result-item span[id] {
  font-family: var(--display-font);
  font-size: 19px;
  color: var(--ink);
}

/* ---- scoreboard / initials ------------------------------------------------ */

.scoreboard {
  margin-bottom: 20px;
  background: rgba(58, 36, 24, .05);
  border: 2px solid var(--ink);
  border-radius: 10px;
  padding: 12px;
  text-align: left;
}

.scoreboard__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  font-family: var(--display-font);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--grass);
  border-bottom: 2px solid var(--ink);
  padding-bottom: 6px;
  margin-bottom: 8px;
}

.scoreboard__status {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--soil);
}

.scoreboard__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.scoreboard__row {
  display: grid;
  grid-template-columns: 24px 1fr auto;
  gap: 8px;
  align-items: baseline;
  font-size: 13px;
  padding: 3px 4px;
  color: var(--ink);
}

.scoreboard__row.is-current {
  background: var(--spring-bottom);
  border-radius: 6px;
}

.scoreboard__empty {
  font-size: 11.5px;
  color: var(--soil);
  text-align: center;
  padding: 12px;
}

.initials-form {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.initials-form[hidden] { display: none; }

.initials-form label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--soil);
}

.initials-form__row {
  display: flex;
  gap: 6px;
}

.initials-form__row input {
  flex: 1;
  min-width: 0;
  font-family: var(--display-font);
  font-size: 16px;
  text-transform: uppercase;
  text-align: center;
  letter-spacing: .2em;
  color: var(--ink);
  background: var(--cream);
  border: 2px solid var(--ink);
  border-radius: 8px;
  padding: 8px;
}

.initials-form__row input:focus {
  outline: 2px solid var(--spring-right);
  outline-offset: 1px;
}

.initials-form__save {
  flex: 0 0 auto;
  padding: 8px 16px 6px;
  font-size: 13px;
}

.initials-form__skip {
  align-self: flex-end;
  background: transparent;
  border: none;
  box-shadow: none;
  font-size: 11px;
  letter-spacing: .02em;
  color: var(--soil);
  text-decoration: underline;
  padding: 4px;
  cursor: pointer;
}

.panel-actions {
  display: flex;
  gap: 10px;
}

.btn {
  flex: 1;
  font-family: var(--display-font);
  font-size: 15px;
  letter-spacing: .02em;
  text-align: center;
  border: 3px solid var(--ink);
  border-radius: 12px;
  padding: 12px 10px 10px;
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--ink);
  transition: transform .08s ease, box-shadow .08s ease;
}

.btn:active {
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 var(--ink);
}

.btn-primary {
  background: var(--spring-bottom);
  color: var(--ink);
}

.btn-secondary {
  background: var(--cream);
  color: var(--ink);
}

.btn-start {
  width: 100%;
}

/* ---- small phones -------------------------------------------------------- */

@media (max-width: 360px) {
  .panel-card {
    padding: 20px 16px;
  }
}

/* ---- larger screens -------------------------------------------------------- */

@media (min-width: 640px) {
  .panel-card {
    max-width: 400px;
    padding: 32px 30px;
  }

  #touch-controls {
    width: min(40vw, 220px);
  }
}