:root {
  color-scheme: dark;
  --bg: #071017;
  --panel: #0f1b22;
  --panel-strong: #162833;
  --ink: #f4fbff;
  --muted: #9fb3be;
  --line: rgba(244, 251, 255, 0.18);
  --yellow: #ffd166;
  --cyan: #4ee8ff;
  --pink: #ff5f9e;
  --green: #66f2a8;
  --red: #ff6b5f;
  --blue: #7ca9ff;
  --radius: 8px;
  --space-image: url("assets/space-smooth.jpg");
}

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

html {
  min-width: 320px;
  min-height: 100%;
  background:
    linear-gradient(180deg, rgba(7, 16, 23, 0.74), rgba(7, 16, 23, 0.96)),
    linear-gradient(110deg, rgba(78, 232, 255, 0.18), rgba(255, 95, 158, 0.1) 46%, rgba(255, 209, 102, 0.12)),
    var(--space-image) center / cover fixed;
}

body {
  min-width: 320px;
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  font-family: "Space Mono", "Courier New", monospace;
  letter-spacing: 0;
  background:
    radial-gradient(circle at 8% 18%, rgba(78, 232, 255, 0.16), transparent 24rem),
    linear-gradient(180deg, rgba(7, 16, 23, 0.26), rgba(7, 16, 23, 0.92));
  overscroll-behavior: none;
}

body[data-palette="contrast"] {
  --bg: #000;
  --panel: #090909;
  --panel-strong: #151515;
  --ink: #fff;
  --muted: #e3e3e3;
  --line: rgba(255, 255, 255, 0.42);
  --yellow: #fff45c;
  --cyan: #67f7ff;
  --pink: #ff79bf;
  --green: #83ff8f;
  --red: #ff6a5f;
  --blue: #9ec2ff;
}

body[data-palette="patterns"] {
  --yellow: #f7d25a;
  --cyan: #65e6ff;
  --pink: #ff7d87;
  --green: #95e26f;
  --red: #ff704d;
  --blue: #8ab5ff;
}

button,
input,
select {
  font: inherit;
}

button,
select,
input[type="range"],
input[type="checkbox"] {
  -webkit-tap-highlight-color: transparent;
}

button,
select,
input:not([type="checkbox"]) {
  min-height: 44px;
}

button,
select,
input {
  color: var(--ink);
}

button {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.72rem 0.95rem;
  background: rgba(244, 251, 255, 0.07);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease,
    box-shadow 160ms ease;
}

button:hover,
button:focus-visible {
  border-color: rgba(78, 232, 255, 0.7);
  background: rgba(78, 232, 255, 0.14);
  outline: none;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.14),
    0 0 0 3px rgba(78, 232, 255, 0.16);
}

button:active {
  transform: translateY(1px) scale(0.99);
}

a {
  color: inherit;
}

.game-shell {
  display: grid;
  gap: clamp(0.75rem, 2vw, 1.15rem);
  min-height: 100vh;
  min-height: 100svh;
  padding:
    max(0.75rem, env(safe-area-inset-top, 0px))
    max(clamp(0.75rem, 2vw, 1.4rem), env(safe-area-inset-right, 0px))
    max(7.4rem, calc(env(safe-area-inset-bottom, 0px) + 6.6rem))
    max(clamp(0.75rem, 2vw, 1.4rem), env(safe-area-inset-left, 0px));
}

.game-header,
.hud,
.play-layout {
  width: min(100%, 92rem);
  margin-inline: auto;
}

.game-header {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.brand-lockup {
  display: inline-grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 0.8rem;
  align-items: center;
  min-width: 0;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 3rem;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(78, 232, 255, 0.48);
  border-radius: var(--radius);
  color: #061017;
  background:
    linear-gradient(135deg, var(--cyan), var(--yellow));
  box-shadow:
    0 0.7rem 1.7rem rgba(78, 232, 255, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.38);
  font-family: "Archivo Black", Impact, sans-serif;
}

.brand-title,
.brand-subtitle {
  display: block;
}

.brand-title {
  overflow-wrap: anywhere;
  font-family: "Archivo Black", Impact, sans-serif;
  font-size: clamp(1.15rem, 3vw, 2rem);
  line-height: 0.92;
  text-transform: uppercase;
}

.brand-subtitle,
.eyebrow,
.hud-item span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.menu-button {
  min-width: 5.8rem;
  min-height: 2.65rem;
  padding-inline: 1rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: flex-end;
}

.site-nav a {
  min-height: 2.4rem;
  padding: 0.62rem 0.74rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: rgba(244, 251, 255, 0.75);
  font-size: 0.78rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  border-color: rgba(78, 232, 255, 0.36);
  color: var(--ink);
  outline: none;
  background: rgba(78, 232, 255, 0.1);
}

.bottom-nav {
  position: fixed;
  left: 50%;
  bottom: max(1rem, calc(env(safe-area-inset-bottom, 0px) + 0.85rem));
  z-index: 9;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.18rem;
  width: min(86vw, 29rem);
  padding: 0.35rem;
  border: 1px solid rgba(244, 251, 255, 0.15);
  border-radius: 999px;
  background: rgba(20, 19, 34, 0.48);
  box-shadow:
    0 1.2rem 3rem rgba(0, 0, 0, 0.42),
    inset 0 1px 0 rgba(244, 251, 255, 0.12);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  transform: translateX(-50%);
}

.nav-link {
  display: grid;
  min-width: 0;
  min-height: 2.5rem;
  place-items: center;
  border-radius: 999px;
  color: rgba(244, 251, 255, 0.72);
  font-family: "Space Mono", "Courier New", monospace;
  font-size: clamp(0.64rem, 2.6vw, 0.82rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  transition:
    background 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--ink);
  background: rgba(244, 251, 255, 0.1);
  outline: none;
}

.nav-link:active {
  transform: scale(0.96);
}

.nav-link.is-active {
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(53, 246, 255, 0.2), rgba(156, 123, 255, 0.18)),
    rgba(244, 251, 255, 0.12);
  box-shadow:
    inset 0 1px 0 rgba(244, 251, 255, 0.2),
    0 0 1.2rem rgba(53, 246, 255, 0.12);
}

.hud {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.5rem;
}

.hud-item,
.side-panel > *,
.overlay-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035)),
    rgba(15, 27, 34, 0.76);
  box-shadow:
    0 1.4rem 3rem rgba(0, 0, 0, 0.26),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px) saturate(1.18);
  -webkit-backdrop-filter: blur(16px) saturate(1.18);
}

.hud-item {
  display: grid;
  gap: 0.18rem;
  min-width: 0;
  padding: 0.68rem 0.78rem;
}

.hud-item strong {
  overflow: hidden;
  color: var(--ink);
  font-family: "Archivo Black", Impact, sans-serif;
  font-size: clamp(1.05rem, 2.2vw, 1.55rem);
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hud-wide strong {
  font-family: "Space Mono", "Courier New", monospace;
  font-size: clamp(0.86rem, 1.45vw, 1rem);
}

.play-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: stretch;
}

.stage-wrap {
  position: relative;
  width: 100%;
  min-height: min(62vh, 42rem);
  border: 1px solid rgba(78, 232, 255, 0.28);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(78, 232, 255, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(78, 232, 255, 0.07) 1px, transparent 1px),
    linear-gradient(180deg, rgba(3, 8, 12, 0.5), rgba(3, 8, 12, 0.92));
  background-size: 44px 44px, 44px 44px, auto;
  box-shadow:
    0 1.6rem 4rem rgba(0, 0, 0, 0.34),
    inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  touch-action: none;
}

.stage-wrap:fullscreen {
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  min-height: 0;
  border: 0;
  border-radius: 0;
}

.stage-wrap.is-shaking {
  animation: stage-shake 180ms linear;
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: min(62vh, 42rem);
  cursor: crosshair;
  touch-action: none;
}

.stage-wrap:fullscreen #game-canvas {
  height: 100vh;
  height: 100dvh;
  min-height: 0;
}

.screen-flash {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  background: rgba(255, 255, 255, 0.28);
}

.screen-flash.is-active {
  animation: flash 180ms ease-out;
}

.overlay {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  padding: clamp(0.75rem, 3vw, 1.5rem);
  background: rgba(3, 8, 12, 0.62);
}

.overlay.is-visible {
  display: grid;
}

.overlay[data-overlay="game-menu"] {
  place-items: center;
  padding: 0.65rem;
}

.overlay-panel {
  display: grid;
  gap: 1rem;
  width: min(100%, 32rem);
  max-height: min(82vh, 39rem);
  overflow: auto;
  padding: clamp(1rem, 3vw, 1.6rem);
}

.title-panel {
  width: min(100%, 40rem);
}

.overlay-panel h1,
.overlay-panel h2,
.status-panel h2 {
  margin: 0;
  font-family: "Archivo Black", Impact, sans-serif;
  line-height: 0.9;
  text-transform: uppercase;
}

.overlay-panel h1 {
  max-width: 10ch;
  font-size: clamp(3rem, 9vw, 6.7rem);
}

.overlay-panel h2,
.status-panel h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.overlay-copy,
.status-panel p:not(.eyebrow),
.control-card dd {
  margin: 0;
  color: rgba(244, 251, 255, 0.76);
  font-size: 0.92rem;
  line-height: 1.55;
}

.button-row,
.action-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.primary-action {
  border-color: rgba(255, 209, 102, 0.72);
  color: #081017;
  background:
    linear-gradient(135deg, var(--yellow), var(--cyan));
  box-shadow:
    0 0.85rem 1.8rem rgba(255, 209, 102, 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.38);
  font-weight: 700;
}

.primary-action:hover,
.primary-action:focus-visible {
  color: #081017;
  background:
    linear-gradient(135deg, #ffe08c, #77f0ff);
}

.side-panel,
.game-menu-panel {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.game-menu-panel {
  width: min(100%, 30rem);
  max-height: calc(100% - 1.3rem);
  gap: 0.65rem;
}

.side-panel > *,
.game-menu-panel > * {
  padding: 1rem;
}

.status-panel {
  display: grid;
  gap: 0.7rem;
}

.action-stack {
  display: grid;
}

.game-menu-panel .action-stack {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.game-menu-panel .action-stack button {
  min-height: 2.75rem;
  padding: 0.55rem 0.65rem;
  overflow-wrap: anywhere;
}

.game-menu-panel .action-stack button:first-child,
.game-menu-panel .action-stack button:last-child {
  grid-column: 1 / -1;
}

.control-card {
  display: grid;
  gap: 0.75rem;
}

.control-card h2 {
  margin: 0;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.control-card dl {
  display: grid;
  gap: 0.72rem;
  margin: 0;
}

.control-card div {
  display: grid;
  gap: 0.12rem;
}

.control-card dt {
  color: var(--cyan);
  font-weight: 700;
}

.score-list {
  display: grid;
  gap: 0.48rem;
  min-height: 9rem;
  margin: 0;
  padding-left: 1.4rem;
}

.score-list li {
  padding: 0.5rem 0.65rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.055);
}

.name-field,
.setting-grid label {
  display: grid;
  gap: 0.38rem;
}

.name-field span,
.setting-grid label > span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.name-field input,
.setting-grid select,
.setting-grid input[type="range"] {
  width: 100%;
}

.name-field input,
.setting-grid select {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.72rem 0.8rem;
  background: rgba(3, 8, 12, 0.72);
}

.name-field input:focus,
.setting-grid select:focus,
.setting-grid input:focus-visible {
  border-color: rgba(78, 232, 255, 0.72);
  outline: none;
  box-shadow: 0 0 0 3px rgba(78, 232, 255, 0.16);
}

.setting-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.toggle-setting {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  min-height: 44px;
}

.touch-controls {
  position: fixed;
  left: max(0.75rem, env(safe-area-inset-left, 0px));
  right: max(0.75rem, env(safe-area-inset-right, 0px));
  bottom: max(4.4rem, calc(env(safe-area-inset-bottom, 0px) + 4.4rem));
  z-index: 10;
  display: none;
  grid-template-columns: 1fr 1.1fr 1fr;
  gap: 0.5rem;
}

body.has-active-overlay .touch-controls {
  display: none !important;
}

.touch-controls button {
  min-height: 54px;
  background: rgba(15, 27, 34, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

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

@keyframes stage-shake {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }

  25% {
    transform: translate3d(4px, -2px, 0);
  }

  50% {
    transform: translate3d(-3px, 3px, 0);
  }

  75% {
    transform: translate3d(2px, 2px, 0);
  }
}

@keyframes flash {
  0% {
    opacity: 0.42;
  }

  100% {
    opacity: 0;
  }
}

@media (max-width: 980px) {
  .play-layout {
    grid-template-columns: 1fr;
  }

  .side-panel {
    grid-template-columns: minmax(0, 1fr) minmax(13rem, 17rem);
  }

  .control-card {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  .game-shell {
    padding-bottom: max(11rem, calc(env(safe-area-inset-bottom, 0px) + 10.2rem));
  }

  .game-header {
    display: grid;
    gap: 0.7rem;
  }

  .site-nav {
    justify-content: start;
  }

  .hud {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hud-wide {
    grid-column: 1 / -1;
  }

  .stage-wrap,
  #game-canvas {
    min-height: clamp(22rem, 54svh, 32rem);
  }

  .side-panel {
    grid-template-columns: 1fr;
  }

  .setting-grid {
    grid-template-columns: 1fr;
  }

  .overlay[data-overlay="game-menu"] {
    align-items: start;
    padding: 0.45rem;
  }

  .game-menu-panel {
    width: min(100%, 21rem);
    max-height: calc(100% - 0.9rem);
    gap: 0.45rem;
    padding: 0.65rem;
  }

  .game-menu-panel > * {
    padding: 0.65rem;
  }

  .game-menu-panel .status-panel {
    gap: 0.35rem;
  }

  .game-menu-panel .status-panel h2 {
    font-size: clamp(1.2rem, 6vw, 1.65rem);
    line-height: 0.95;
  }

  .game-menu-panel .status-panel p:not(.eyebrow) {
    display: none;
  }

  .game-menu-panel .action-stack {
    gap: 0.45rem;
  }

  .game-menu-panel .action-stack button {
    min-height: 2.45rem;
    padding: 0.45rem 0.5rem;
    font-size: clamp(0.72rem, 3.8vw, 0.95rem);
    line-height: 1.1;
  }

  .game-menu-panel .control-card {
    display: none;
  }

  .touch-controls {
    display: grid;
  }
}

@media (max-width: 440px) {
  .brand-lockup {
    grid-template-columns: 2.55rem minmax(0, 1fr);
  }

  .brand-mark {
    width: 2.55rem;
  }

  .site-nav a {
    padding-inline: 0.56rem;
  }

  .bottom-nav {
    width: min(94vw, 24rem);
    padding: 0.3rem;
  }

  .nav-link {
    min-height: 2.35rem;
    font-size: clamp(0.58rem, 2.6vw, 0.74rem);
    letter-spacing: 0.035em;
  }

  .overlay-panel h1 {
    font-size: clamp(2.55rem, 14vw, 4.5rem);
  }
}

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