:root {
  --ink: #052c38;
  --ink-deep: #031b24;
  --cream: #fff8e8;
  --paper: #f4ecd9;
  --sun: #ffdb5c;
  --coral: #ff7c5d;
  --aqua: #94e7db;
  --aqua-deep: #087b80;
  --line: rgba(5, 44, 56, 0.2);
  --glass: rgba(250, 245, 229, 0.86);
  --display: "Bricolage Grotesque", "Avenir Next Condensed", sans-serif;
  --mono: "DM Mono", "SFMono-Regular", Menlo, monospace;
  --serif: "Fraunces", Georgia, serif;
  --pad: clamp(16px, 3.2vw, 48px);
}

* {
  box-sizing: border-box;
}

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

html {
  background: var(--ink-deep);
  -webkit-text-size-adjust: 100%;
}

body {
  min-width: 320px;
  overflow: hidden;
  color: var(--cream);
  background: var(--ink-deep);
  font-family: var(--display);
}

button,
a {
  color: inherit;
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--sun);
  outline-offset: 4px;
}

::selection {
  color: var(--ink);
  background: var(--sun);
}

#ocean-canvas {
  position: fixed;
  z-index: 0;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: default;
}

.is-playing #ocean-canvas {
  cursor: crosshair;
}

.ocean-grain,
.ocean-vignette {
  position: fixed;
  z-index: 2;
  inset: 0;
  pointer-events: none;
}

.ocean-grain {
  opacity: 0.12;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.45'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

.ocean-vignette {
  background:
    linear-gradient(180deg, rgba(2, 24, 33, 0.25), transparent 18%, transparent 79%, rgba(2, 24, 33, 0.27)),
    radial-gradient(ellipse at center, transparent 45%, rgba(2, 24, 33, 0.18) 100%);
}

.ocean-topbar {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: max(18px, env(safe-area-inset-top)) var(--pad) 18px;
  pointer-events: none;
}

.ocean-topbar::before {
  position: absolute;
  z-index: -1;
  top: 0;
  right: 0;
  left: 0;
  height: 146px;
  background: linear-gradient(180deg, rgba(3, 27, 36, 0.33), transparent);
  content: "";
  pointer-events: none;
}

.ocean-brand,
.ocean-controls {
  pointer-events: auto;
}

.ocean-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--cream);
  text-decoration: none;
  text-shadow: 0 1px 20px rgba(3, 27, 36, 0.22);
}

.ocean-brand-mark {
  display: grid;
  width: 49px;
  height: 49px;
  place-items: center;
  border: 1.5px solid rgba(255, 248, 232, 0.72);
  border-radius: 50%;
  color: var(--ink);
  background: var(--sun);
  box-shadow: 4px 4px 0 rgba(5, 44, 56, 0.78);
  transform: rotate(-5deg);
}

.ocean-brand-mark svg {
  width: 33px;
  fill: var(--ink);
}

.ocean-brand-copy {
  display: flex;
  flex-direction: column;
}

.ocean-brand-copy b {
  font-size: 1.22rem;
  font-weight: 800;
  letter-spacing: -0.065em;
  line-height: 1;
}

.ocean-brand-copy em {
  color: var(--sun);
  font-style: normal;
}

.ocean-brand-copy small {
  margin-top: 5px;
  color: rgba(255, 248, 232, 0.65);
  font-family: var(--mono);
  font-size: 0.53rem;
  letter-spacing: 0.12em;
}

.ocean-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 39px;
  padding: 7px 13px;
  border: 1px solid rgba(255, 248, 232, 0.56);
  border-radius: 999px;
  color: var(--cream);
  background: rgba(4, 45, 58, 0.35);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  backdrop-filter: blur(12px);
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.control-button:hover {
  color: var(--ink);
  background: var(--cream);
  transform: translateY(-2px);
}

.sound-icon {
  display: grid;
  width: 15px;
  height: 15px;
  place-items: center;
}

.sound-icon svg {
  width: 100%;
  fill: currentColor;
}

.sound-button[aria-pressed="false"] .sound-icon path:last-child {
  opacity: 0.22;
}

.arcade-link {
  color: var(--ink);
  background: var(--cream);
}

.ocean-intro {
  position: fixed;
  z-index: 10;
  inset: 0;
  display: flex;
  align-items: center;
  padding: calc(82px + env(safe-area-inset-top)) var(--pad) 45px;
  transition: opacity 520ms ease, visibility 520ms, transform 520ms cubic-bezier(0.16, 1, 0.3, 1);
}

.ocean-intro::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(3, 27, 36, 0.42) 0%, rgba(3, 27, 36, 0.1) 54%, transparent 76%),
    linear-gradient(180deg, rgba(3, 27, 36, 0.24), transparent 31%);
  content: "";
  pointer-events: none;
}

.intro-card {
  position: relative;
  width: min(660px, 54vw);
  padding: clamp(28px, 4.2vw, 62px);
  border: 2px solid var(--ink);
  border-radius: 5px 50px 50px 50px;
  color: var(--ink);
  background:
    radial-gradient(circle at 92% 4%, rgba(255, 219, 92, 0.54), transparent 14rem),
    rgba(255, 248, 232, 0.95);
  box-shadow: 12px 12px 0 rgba(5, 44, 56, 0.72);
  animation: intro-arrive 760ms cubic-bezier(0.16, 1, 0.3, 1) both;
  backdrop-filter: blur(12px);
}

.intro-card::before {
  position: absolute;
  top: -12px;
  left: 38px;
  width: 96px;
  height: 23px;
  border: 1px solid rgba(5, 44, 56, 0.22);
  background: rgba(255, 255, 255, 0.48);
  content: "";
  transform: rotate(-2deg);
}

.intro-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 28px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.intro-kicker > span:first-child {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 4px rgba(255, 124, 93, 0.14);
}

.intro-card h1 {
  margin: 0;
  font-size: clamp(4.1rem, 7vw, 7.7rem);
  font-weight: 780;
  letter-spacing: -0.085em;
  line-height: 0.76;
}

.intro-card h1 span,
.intro-card h1 strong {
  display: block;
}

.intro-card h1 strong {
  margin-left: -0.035em;
  color: var(--aqua-deep);
  font-family: var(--serif);
  font-size: 0.98em;
  font-style: italic;
  font-weight: 700;
  letter-spacing: -0.07em;
  line-height: 0.94;
}

.intro-body {
  max-width: 520px;
  margin: 30px 0 0;
  color: rgba(5, 44, 56, 0.75);
  font-size: clamp(0.98rem, 1.28vw, 1.16rem);
  line-height: 1.52;
}

.intro-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 31px;
}

.enter-button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 55px;
  padding: 11px 16px 11px 22px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  color: var(--cream);
  background: var(--ink);
  box-shadow: 5px 5px 0 var(--coral);
  font-size: 0.92rem;
  font-weight: 750;
  cursor: pointer;
  transition: box-shadow 160ms ease, transform 160ms ease;
}

.enter-button > span:last-child {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 50%;
  color: var(--ink);
  background: var(--sun);
}

.enter-button:hover {
  box-shadow: 2px 2px 0 var(--coral);
  transform: translate(3px, 3px);
}

.intro-aside {
  max-width: 150px;
  color: rgba(5, 44, 56, 0.51);
  font-family: var(--mono);
  font-size: 0.58rem;
  line-height: 1.45;
  text-transform: uppercase;
}

.field-guide {
  display: flex;
  gap: 0;
  margin: 36px 0 0;
  padding: 17px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.field-guide li {
  display: flex;
  flex: 1;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
  padding: 0 13px;
  border-left: 1px solid var(--line);
  font-size: 0.76rem;
  font-weight: 700;
}

.field-guide li:first-child {
  padding-left: 0;
  border-left: 0;
}

.field-guide li span:first-child {
  color: var(--aqua-deep);
  font-family: var(--mono);
  font-size: 0.54rem;
  font-weight: 500;
}

.intro-margin {
  position: absolute;
  right: var(--pad);
  bottom: 48px;
  display: flex;
  align-items: center;
  gap: 13px;
  color: rgba(255, 248, 232, 0.75);
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.11em;
}

.intro-margin i {
  display: block;
  width: 70px;
  height: 1px;
  background: currentColor;
}

.is-playing .ocean-intro {
  visibility: hidden;
  opacity: 0;
  transform: translateY(-38px);
  pointer-events: none;
}

.ocean-hud {
  position: fixed;
  z-index: 15;
  top: calc(91px + env(safe-area-inset-top));
  right: var(--pad);
  left: var(--pad);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 420ms ease 220ms, transform 420ms ease 220ms;
}

.is-playing .ocean-hud {
  opacity: 1;
  transform: none;
}

.hud-mode {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: 430px;
  min-height: 38px;
  padding: 9px 14px;
  border: 1px solid rgba(255, 248, 232, 0.42);
  border-radius: 999px;
  color: var(--cream);
  background: rgba(3, 27, 36, 0.38);
  font-family: var(--mono);
  font-size: 0.59rem;
  line-height: 1.35;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
}

.hud-live-dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--aqua);
  box-shadow: 0 0 0 4px rgba(148, 231, 219, 0.12);
  animation: live-pulse 2.4s ease-out infinite;
}

.hud-stats {
  display: flex;
  gap: 1px;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 248, 232, 0.42);
  border-radius: 15px;
  background: rgba(3, 27, 36, 0.38);
  backdrop-filter: blur(12px);
}

.hud-stats div {
  min-width: 83px;
  padding: 8px 14px 9px;
  border-left: 1px solid rgba(255, 248, 232, 0.16);
}

.hud-stats div:first-child {
  border-left: 0;
}

.hud-stats dt {
  color: rgba(255, 248, 232, 0.58);
  font-family: var(--mono);
  font-size: 0.5rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hud-stats dd {
  margin: 2px 0 0;
  font-size: 1.12rem;
  font-weight: 750;
  letter-spacing: -0.04em;
  line-height: 1;
}

.hud-hint {
  position: fixed;
  right: 0;
  bottom: calc(110px + env(safe-area-inset-bottom));
  left: 0;
  width: max-content;
  max-width: min(90vw, 480px);
  margin: 0 auto;
  padding: 7px 12px;
  border-radius: 999px;
  color: rgba(255, 248, 232, 0.79);
  background: rgba(3, 27, 36, 0.25);
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.03em;
  line-height: 1.4;
  text-align: center;
  backdrop-filter: blur(8px);
  transition: opacity 240ms ease;
}

.hud-hint.is-hidden {
  opacity: 0;
}

.action-dock {
  position: fixed;
  z-index: 20;
  bottom: max(18px, env(safe-area-inset-bottom));
  left: 50%;
  display: flex;
  align-items: center;
  gap: 7px;
  width: max-content;
  max-width: calc(100vw - 24px);
  padding: 8px;
  border: 1px solid rgba(255, 248, 232, 0.52);
  border-radius: 22px;
  color: var(--ink);
  background: rgba(255, 248, 232, 0.91);
  box-shadow: 0 15px 44px rgba(2, 24, 33, 0.25);
  opacity: 0;
  transform: translate(-50%, 130%);
  transition: transform 420ms cubic-bezier(0.16, 1, 0.3, 1) 260ms, opacity 260ms ease 260ms;
  backdrop-filter: blur(16px);
}

.is-playing .action-dock {
  opacity: 1;
  transform: translate(-50%, 0);
}

.ocean-action {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 112px;
  min-height: 46px;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 14px;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  transition: background 150ms ease, transform 150ms ease, border-color 150ms ease;
}

.ocean-action:hover {
  border-color: var(--line);
  background: rgba(5, 44, 56, 0.06);
}

.ocean-action:active {
  transform: scale(0.97);
}

.ocean-action[aria-pressed="true"] {
  border-color: var(--ink);
  background: var(--sun);
}

.ocean-action[data-action="fish"][aria-pressed="true"] {
  color: var(--cream);
  background: var(--coral);
}

.action-icon {
  display: grid;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  place-items: center;
}

.action-icon svg {
  width: 100%;
  fill: currentColor;
}

.action-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
}

.action-copy b {
  font-size: 0.79rem;
  font-weight: 750;
  letter-spacing: -0.025em;
  line-height: 1.1;
  white-space: nowrap;
}

.action-copy small {
  margin-top: 2px;
  color: rgba(5, 44, 56, 0.46);
  font-family: var(--mono);
  font-size: 0.48rem;
  line-height: 1;
}

.ocean-action[aria-pressed="true"] .action-copy small {
  color: rgba(5, 44, 56, 0.58);
}

.ocean-action[data-action="fish"][aria-pressed="true"] .action-copy small {
  color: rgba(255, 248, 232, 0.64);
}

.dock-divider {
  width: 1px;
  height: 31px;
  margin: 0 4px;
  background: var(--line);
}

.dock-hint {
  max-width: 160px;
  margin: 0;
  padding: 0 11px 0 5px;
  color: rgba(5, 44, 56, 0.62);
  font-family: var(--mono);
  font-size: 0.51rem;
  line-height: 1.35;
  text-transform: uppercase;
}

.ocean-toast {
  position: fixed;
  z-index: 31;
  top: 50%;
  left: 50%;
  max-width: min(86vw, 420px);
  padding: 11px 17px;
  border: 1px solid rgba(255, 248, 232, 0.62);
  border-radius: 999px;
  color: var(--ink);
  background: var(--cream);
  font-size: 0.78rem;
  font-weight: 700;
  text-align: center;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, 22px) scale(0.94);
  transition: opacity 180ms ease, transform 220ms cubic-bezier(0.16, 1, 0.3, 1);
}

.ocean-toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes intro-arrive {
  from {
    opacity: 0;
    transform: translateY(28px) rotate(-1deg);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes live-pulse {
  50% {
    box-shadow: 0 0 0 7px rgba(148, 231, 219, 0.03);
  }
}

@media (max-width: 900px) {
  .intro-card {
    width: min(610px, 66vw);
  }

  .intro-card h1 {
    font-size: clamp(3.9rem, 8vw, 6.3rem);
  }

  .intro-aside {
    display: none;
  }

  .hud-stats div {
    min-width: 72px;
    padding-right: 11px;
    padding-left: 11px;
  }
}

@media (max-width: 720px) {
  .ocean-topbar {
    padding: max(12px, env(safe-area-inset-top)) 13px 12px;
  }

  .ocean-brand {
    gap: 8px;
  }

  .ocean-brand-mark {
    width: 40px;
    height: 40px;
    box-shadow: 3px 3px 0 rgba(5, 44, 56, 0.68);
  }

  .ocean-brand-mark svg {
    width: 27px;
  }

  .ocean-brand-copy b {
    font-size: 1rem;
  }

  .ocean-brand-copy small {
    display: none;
  }

  .ocean-controls {
    gap: 5px;
  }

  .control-button {
    min-width: 36px;
    min-height: 36px;
    padding: 7px 10px;
  }

  .sound-button #sound-label,
  .arcade-link span:first-child {
    display: none;
  }

  .ocean-intro {
    align-items: flex-end;
    padding: 89px 11px max(88px, env(safe-area-inset-bottom));
  }

  .ocean-intro::before {
    background: linear-gradient(180deg, transparent 12%, rgba(3, 27, 36, 0.26));
  }

  .intro-card {
    width: 100%;
    padding: 31px 23px 24px;
    border-radius: 4px 30px 30px 30px;
    box-shadow: 7px 7px 0 rgba(5, 44, 56, 0.67);
  }

  .intro-card::before {
    left: 25px;
    width: 72px;
    height: 19px;
  }

  .intro-kicker {
    margin-bottom: 20px;
    font-size: 0.54rem;
  }

  .intro-card h1 {
    font-size: clamp(3.45rem, 17.5vw, 5.5rem);
  }

  .intro-body {
    margin-top: 21px;
    font-size: 0.93rem;
    line-height: 1.44;
  }

  .intro-actions {
    margin-top: 22px;
  }

  .enter-button {
    width: 100%;
    min-height: 51px;
  }

  .field-guide {
    margin-top: 22px;
    padding-top: 13px;
  }

  .field-guide li {
    justify-content: center;
    padding: 0 6px;
    font-size: 0.67rem;
  }

  .field-guide li span:first-child {
    display: none;
  }

  .intro-margin {
    display: none;
  }

  .ocean-hud {
    top: calc(66px + env(safe-area-inset-top));
    right: 11px;
    left: 11px;
  }

  .hud-mode {
    max-width: 50vw;
    padding: 8px 10px;
    font-size: 0.5rem;
  }

  .hud-stats div {
    min-width: 51px;
    padding: 7px 8px;
  }

  .hud-stats dt {
    font-size: 0.43rem;
  }

  .hud-stats dd {
    font-size: 0.92rem;
  }

  .hud-stats div:last-child {
    display: none;
  }

  .hud-hint {
    bottom: calc(91px + env(safe-area-inset-bottom));
    padding: 6px 10px;
    font-size: 0.49rem;
  }

  .action-dock {
    right: 8px;
    bottom: max(8px, env(safe-area-inset-bottom));
    left: 8px;
    width: auto;
    max-width: none;
    justify-content: stretch;
    gap: 3px;
    padding: 6px;
    border-radius: 18px;
    transform: translateY(130%);
  }

  .is-playing .action-dock {
    transform: translateY(0);
  }

  .ocean-action {
    flex: 1;
    flex-direction: column;
    justify-content: center;
    gap: 3px;
    min-width: 0;
    min-height: 58px;
    padding: 6px 4px;
  }

  .action-icon {
    width: 21px;
    height: 21px;
  }

  .action-copy {
    align-items: center;
  }

  .action-copy b {
    font-size: 0.63rem;
    white-space: normal;
    text-align: center;
  }

  .action-copy small,
  .dock-divider,
  .dock-hint {
    display: none;
  }

  .ocean-toast {
    top: 42%;
  }
}

@media (max-width: 390px) {
  .intro-card {
    padding: 27px 19px 20px;
  }

  .intro-card h1 {
    font-size: 3.25rem;
  }

  .intro-body {
    font-size: 0.87rem;
  }

  .field-guide li {
    font-size: 0.61rem;
  }

  .hud-mode {
    max-width: 47vw;
  }

  .hud-stats div {
    min-width: 46px;
    padding-right: 6px;
    padding-left: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}