/* ---------- Tokens ---------- */
:root {
  --chalk: #ffffff;
  --foam: #c9f3ff;   /* secondary text, picked from the light rays */
  --abyss: #1a0f5c;  /* outlines and dark text */
  --deep: #2a1d8c;   /* fallback while the scene loads */

  --font: "Instrument Sans", system-ui, sans-serif;

  --orb: clamp(112px, 36vw, 156px);
  /* Spacing grows with the screen: columns with width, rows with height */
  --col-gap: clamp(1.5rem, 12vw, 6rem);
  --row-gap: clamp(1.25rem, 6vh, 4.5rem);
  /* Pushes the intro below the brightest patches of the water surface */
  --intro-top: clamp(0rem, 3.5vh, 2.25rem);
  --bruce-w: clamp(120px, 30vw, 200px);

  color-scheme: dark;
}

/* Tablets in portrait: keep the 2x2 grid, just bigger */
@media (min-width: 600px) {
  :root {
    --orb: clamp(150px, 26vw, 230px);
    --bruce-w: clamp(170px, 24vw, 260px);
  }
}

/* Wide screens: bubbles scatter across one loose row */
@media (min-width: 768px) and (orientation: landscape) {
  :root {
    --col-gap: clamp(2rem, 9vw, 11rem);
    --orb: clamp(140px, 14vw, 200px);
    --bruce-w: clamp(180px, 20vw, 300px);
  }
}

/* Short portrait phones (e.g. iPhone SE): tighten up so nothing scrolls */
@media (max-height: 640px) and (orientation: portrait) {
  :root {
    --row-gap: 3vh;
    --intro-top: 0rem;
  }
}

/* Phones in landscape: size from height instead */
@media (max-height: 520px) and (orientation: landscape) {
  :root {
    --orb: clamp(84px, 25vh, 126px);
    --col-gap: clamp(1rem, 6vw, 3.5rem);
    --row-gap: 1rem;
    --bruce-w: clamp(110px, 30vh, 170px);
  }
}

/* ---------- Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--chalk);
  background: var(--deep);
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

/* ---------- Scene ---------- */
.ocean {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-color: var(--deep);
  background-image: url("../assets/img/ocean-2560.jpg");
  background-image: image-set(
    url("../assets/img/ocean-2560.webp") type("image/webp"),
    url("../assets/img/ocean-2560.jpg") type("image/jpeg")
  );
  background-size: cover;
  background-position: center bottom;
}

/* Dim the bright water surface just enough for the intro to stay legible */
.ocean::after {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 35%;
  background: linear-gradient(rgb(26 15 92 / 0.55), transparent);
}

@media (max-width: 900px) {
  .ocean {
    background-image: url("../assets/img/ocean-1280.webp");
    background-position: 62% bottom;
  }
  .ocean::after {
    background: linear-gradient(rgb(26 15 92 / 0.6), transparent);
  }
}

/* ---------- Layout ---------- */
.stage {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr;
  padding:
    max(1.25rem, env(safe-area-inset-top))
    max(1.25rem, env(safe-area-inset-right))
    max(1.25rem, env(safe-area-inset-bottom))
    max(1.25rem, env(safe-area-inset-left));
}

.intro {
  justify-self: center;
  text-align: center;
  margin-top: var(--intro-top);
  max-width: min(100%, 38rem);
}

.intro h1 {
  margin: 0;
  font-size: clamp(2.1rem, 7vw, 3.6rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1;
}

.intro p {
  margin: 0.6rem 0 0;
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  line-height: 1.45;
  color: var(--foam);
}

.bubbles {
  align-self: center;
  justify-self: center;
  display: grid;
  grid-template-columns: repeat(2, var(--orb));
  gap: var(--row-gap) var(--col-gap);
  padding-block: var(--row-gap);
}

/* Small, uneven nudges so the grid doesn't read as a grid */
.bubble:nth-child(1) { --tilt: -4deg; }
.bubble:nth-child(2) { --tilt: 3deg;  translate: 0 1.2rem; }
.bubble:nth-child(3) { --tilt: 2deg;  translate: 0.6rem -0.4rem; }
.bubble:nth-child(4) { --tilt: -3deg; translate: -0.4rem 0.9rem; }

@media (min-width: 768px) and (orientation: landscape), (max-height: 520px) and (orientation: landscape) {
  .bubbles {
    grid-template-columns: repeat(4, var(--orb));
  }

  .bubble:nth-child(1) { translate: 0 calc(var(--orb) * -0.25 - 4vh); }
  .bubble:nth-child(2) { translate: 0 calc(var(--orb) * 0.3 + 5vh); }
  .bubble:nth-child(3) { translate: calc(var(--orb) * 0.08) calc(var(--orb) * -0.1 - 2vh); }
  .bubble:nth-child(4) { translate: calc(var(--orb) * 0.18) calc(var(--orb) * 0.2 + 3vh); }
}

@media (max-height: 520px) and (orientation: landscape) {
  .stage {
    padding-top: 0.75rem;
  }
  :root {
    --intro-top: 0rem;
  }
  .intro h1 {
    font-size: 1.8rem;
  }
  .intro p {
    font-size: 0.95rem;
  }
  .bubble:nth-child(n) {
    translate: 0 0;
  }
}

/* ---------- Bubbles (Jack's original bubble art, redrawn thinner) ---------- */
.bubble {
  appearance: none;
  border: 0;
  padding: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  z-index: 2;
  width: var(--orb);
  justify-self: center;
}

.bubble__float {
  display: grid;
  justify-items: center;
  gap: 0.35rem;
  animation: drift 4.6s ease-in-out infinite alternate;
}

.bubble:nth-child(2) .bubble__float { animation-delay: -1.3s; animation-duration: 5.3s; }
.bubble:nth-child(3) .bubble__float { animation-delay: -2.8s; animation-duration: 4.2s; }
.bubble:nth-child(4) .bubble__float { animation-delay: -0.7s; animation-duration: 5.7s; }

@keyframes drift {
  0%   { transform: translate(0, 0); }
  50%  { transform: translate(calc(var(--orb) * 0.025), calc(var(--orb) * 0.09)); }
  100% { transform: translate(calc(var(--orb) * -0.02), calc(var(--orb) * 0.18)); }
}

.bubble__orb {
  position: relative;
  display: grid;
  place-items: center;
  width: var(--orb);
  aspect-ratio: 1;
  background: url("../assets/img/bubble.svg") center / contain no-repeat;
  rotate: var(--tilt, 0deg);
  transition: rotate 0.4s cubic-bezier(0.34, 1.8, 0.64, 1);
}

/* The splat from the original site, shown for a beat when a bubble pops */
.bubble__orb::after {
  content: "";
  position: absolute;
  inset: -12%;
  background: url("../assets/img/splat.webp") center / contain no-repeat;
  opacity: 0;
  scale: 0.6;
  pointer-events: none;
}

.bubble__icon {
  width: 40%;
  height: 40%;
  object-fit: contain;
  /* Nudge away from the highlight arc in the top-right of the art */
  translate: -5% 4%;
}

.bubble__soon {
  display: grid;
  place-items: center;
  width: auto;
  height: auto;
  font-weight: 600;
  font-size: calc(var(--orb) * 0.16);
  rotate: -8deg;
}

.bubble__label {
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  font-weight: 600;
  white-space: nowrap;
  text-underline-offset: 5px;
  text-decoration-thickness: 2px;
}

/* Response to the pointer: the bubble wobbles, the label gets a squiggle */
@media (hover: hover) {
  .bubble:hover .bubble__orb {
    rotate: calc(var(--tilt, 0deg) * -2);
  }
  .bubble:hover .bubble__label {
    text-decoration-line: underline;
    text-decoration-style: wavy;
  }
}

.bubble:focus-visible {
  outline: none;
}
.bubble:focus-visible .bubble__label {
  text-decoration-line: underline;
  text-decoration-style: wavy;
}
.bubble:focus-visible .bubble__orb {
  outline: 3px dashed var(--chalk);
  outline-offset: 4px;
  border-radius: 50%;
}

/* Pop: outline and icon vanish, splat flashes, label stays put */
.bubble.is-popped .bubble__orb {
  background-image: none;
}
.bubble.is-popped .bubble__icon {
  visibility: hidden;
}
.bubble.is-popped .bubble__orb::after {
  animation: splat 0.6s ease-out forwards;
}
.bubble.is-reforming .bubble__orb {
  animation: reform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes splat {
  0%   { opacity: 1; scale: 0.6; }
  35%  { opacity: 1; scale: 1; }
  100% { opacity: 0; scale: 1.1; }
}
@keyframes reform {
  from { scale: 0.15; opacity: 0; }
  to   { scale: 1; opacity: 1; }
}

/* Water droplets when Bruce bites (spawned in effects.js) */
.droplet {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 50;
  width: var(--s);
  aspect-ratio: 1;
  border-radius: 50%;
  pointer-events: none;
  background: var(--foam);
  border: 1.5px solid var(--abyss);
  animation: splash var(--d) cubic-bezier(0.15, 0.7, 0.4, 1) forwards;
}

@keyframes splash {
  from { transform: translate(var(--x0), var(--y0)) scale(1); opacity: 1; }
  to   { transform: translate(var(--x1), var(--y1)) scale(0.3); opacity: 0; }
}

/* ---------- Bruce ---------- */
.bruce {
  appearance: none;
  border: 0;
  padding: 0;
  background: none;
  position: fixed;
  left: 0;
  top: 0;
  /* Behind the bubbles, so he never steals a tap meant for a link */
  z-index: 1;
  width: var(--bruce-w);
  aspect-ratio: 298 / 275;
  cursor: pointer;
  will-change: transform;
  visibility: hidden;
  touch-action: manipulation;
}

.bruce.is-ready {
  visibility: visible;
}

/* ...but in front while he's eating them */
.bruce.is-frenzy {
  z-index: 3;
}

.bruce__img {
  display: block;
  width: 100%;
  height: 100%;
  user-select: none;
  -webkit-user-drag: none;
  will-change: transform;
}

.bruce:focus-visible {
  outline: 3px dashed var(--chalk);
  outline-offset: 4px;
  border-radius: 24px;
}

/* ---------- Bruce's speech bubble ---------- */
.speech {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 60;
  margin: 0;
  width: max-content;
  max-width: min(78vw, 17rem);
  padding: 0.6rem 0.9rem;
  border: 3px solid var(--abyss);
  border-radius: 1.4rem 1.6rem 1.5rem 1.2rem;
  background: var(--chalk);
  color: var(--abyss);
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.3;
  pointer-events: none;
  opacity: 0;
  scale: 0.6;
  transform-origin: 30% 100%;
  transition: opacity 0.15s, scale 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.speech::after {
  content: "";
  position: absolute;
  left: 28%;
  bottom: -11px;
  width: 18px;
  height: 18px;
  background: var(--chalk);
  border-right: 3px solid var(--abyss);
  border-bottom: 3px solid var(--abyss);
  transform: rotate(45deg) skew(12deg, 12deg);
}

.speech.is-visible {
  opacity: 1;
  scale: 1;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .bubble__float {
    animation: none;
  }
  .bubble__orb,
  .speech {
    transition: none;
  }
}