:root {
  color-scheme: dark;
  --void: #090611;
  --space: #100b20;
  --panel: #17102b;
  --panel-light: #241440;
  --line: #3a225d;
  --white: #fff7ff;
  --muted: #9b85b5;
  --pink: #ff3f86;
  --pink-bright: #ff78ad;
  --cyan: #39e7ff;
  --blue: #5f8cff;
  --green: #48f58c;
  --yellow: #ffd447;
  --orange: #ff914d;
  --purple: #d16bff;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 50% 15%, rgba(69, 30, 118, 0.28), transparent 32rem),
    radial-gradient(circle at 10% 85%, rgba(255, 63, 134, 0.08), transparent 23rem),
    var(--void);
  color: var(--white);
  font-family: "Courier New", Courier, monospace;
  letter-spacing: 0.05em;
}

button {
  font: inherit;
}

.app-shell {
  width: min(100%, 760px);
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(12px, 3vw, 28px) clamp(10px, 3vw, 28px) 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.brand-bar {
  width: min(100%, 620px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: clamp(9px, 1.8vw, 11px);
  font-weight: 700;
  text-transform: uppercase;
}

.brand-mark {
  color: var(--white);
  text-shadow: 0 0 12px rgba(209, 107, 255, 0.75);
}

.brand-dot,
.status-led,
.readout-led {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  vertical-align: 1px;
  background: var(--pink);
  box-shadow: 0 0 9px var(--pink);
}

.status-led {
  width: 6px;
  height: 6px;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}

.arcade-frame {
  width: min(100%, 620px);
}

.screen-bezel {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border: 1px solid #5a337e;
  border-radius: 12px;
  background: var(--space);
  box-shadow:
    0 0 0 4px rgba(23, 16, 43, 0.95),
    0 0 0 5px #291741,
    0 0 42px rgba(142, 74, 219, 0.2),
    inset 0 0 48px rgba(0, 0, 0, 0.65);
}

.screen-bezel::before,
.screen-bezel::after {
  position: absolute;
  z-index: 20;
  inset: 0;
  pointer-events: none;
  content: "";
}

.screen-bezel::before {
  background: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 3px,
    rgba(5, 1, 14, 0.17) 4px,
    transparent 5px
  );
  mix-blend-mode: multiply;
}

.screen-bezel::after {
  background: radial-gradient(ellipse at center, transparent 52%, rgba(3, 1, 9, 0.56) 100%);
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.hud {
  position: absolute;
  z-index: 30;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 66px;
  padding: 12px 16px 8px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: start;
  pointer-events: none;
  text-shadow: 0 0 9px currentColor;
}

.hud-block {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1;
}

.score-block {
  align-items: center;
}

.level-block {
  align-items: flex-end;
}

.hud-label {
  color: #a58dbd;
  font-size: clamp(7px, 1.4vw, 9px);
  letter-spacing: 0.17em;
  text-shadow: none;
}

.lives-value {
  min-height: 22px;
  color: var(--pink);
  font-size: clamp(17px, 3.8vw, 22px);
  letter-spacing: 0.08em;
}

.score-value {
  color: var(--yellow);
  font-size: clamp(16px, 3.6vw, 22px);
  letter-spacing: 0.1em;
}

.level-value {
  color: var(--cyan);
  font-size: clamp(16px, 3.6vw, 22px);
}

.coin-line {
  color: var(--yellow);
  font-size: clamp(9px, 1.9vw, 12px);
  letter-spacing: 0.1em;
}

.coin-icon {
  color: var(--yellow);
  margin-right: 4px;
}

.combo-value {
  min-height: 11px;
  color: var(--orange);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-shadow: 0 0 8px var(--orange);
}

.powerup-status {
  position: absolute;
  z-index: 30;
  bottom: 36px;
  left: 50%;
  min-height: 15px;
  transform: translateX(-50%);
  color: var(--white);
  font-size: clamp(8px, 1.7vw, 10px);
  font-weight: 700;
  letter-spacing: 0.08em;
  opacity: 0;
  transition: opacity 160ms ease;
  pointer-events: none;
  text-shadow: 0 0 8px currentColor;
  white-space: nowrap;
}

.powerup-status.is-active {
  opacity: 1;
}

.level-banner {
  position: absolute;
  z-index: 35;
  top: 48%;
  left: 50%;
  width: 100%;
  transform: translate(-50%, -50%);
  color: var(--yellow);
  font-size: clamp(15px, 4vw, 25px);
  font-weight: 700;
  letter-spacing: 0.12em;
  opacity: 0;
  pointer-events: none;
  text-align: center;
  text-shadow: 0 0 16px var(--orange);
}

.level-banner.is-visible {
  animation: banner-pulse 1.1s steps(2, end) infinite;
}

.flash-layer {
  position: absolute;
  z-index: 45;
  inset: 0;
  background: #fff;
  opacity: 0;
  pointer-events: none;
}

.screen-overlay {
  position: absolute;
  z-index: 40;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 74px 25px 38px;
  background: linear-gradient(180deg, rgba(14, 7, 29, 0.28), rgba(14, 7, 29, 0.78));
  opacity: 1;
  transition: opacity 180ms ease;
}

.screen-overlay.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.screen-card {
  width: min(100%, 365px);
  padding: 20px 20px 23px;
  border: 1px solid rgba(158, 99, 211, 0.52);
  border-radius: 8px;
  background: rgba(17, 9, 35, 0.78);
  box-shadow:
    0 0 0 4px rgba(10, 5, 20, 0.44),
    0 0 30px rgba(101, 43, 163, 0.25),
    inset 0 0 22px rgba(116, 54, 177, 0.1);
  text-align: center;
  backdrop-filter: blur(2px);
}

.eyebrow {
  margin: 0 0 15px;
  color: var(--green);
  font-size: clamp(7px, 1.6vw, 9px);
  letter-spacing: 0.17em;
  text-shadow: 0 0 8px var(--green);
}

h1 {
  margin: 0;
  color: var(--white);
  font-size: clamp(27px, 7vw, 42px);
  line-height: 0.88;
  letter-spacing: 0.05em;
  text-shadow:
    3px 3px 0 #5e247c,
    0 0 13px rgba(255, 63, 134, 0.8);
}

h1 span {
  color: var(--pink-bright);
}

.screen-tagline {
  margin: 16px 0 20px;
  color: #c9b9d6;
  font-size: clamp(9px, 1.9vw, 11px);
  line-height: 1.55;
  letter-spacing: 0.06em;
}

.score-legend {
  width: min(100%, 240px);
  margin: 0 auto 23px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 18px;
  color: #e8dff0;
  font-size: clamp(8px, 1.8vw, 10px);
  text-align: left;
}

.score-legend > div {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend-alien {
  display: inline-grid;
  width: 20px;
  height: 15px;
  place-items: center;
  font-size: 22px;
  line-height: 10px;
  text-shadow: 0 0 8px currentColor;
}

.legend-top { color: var(--pink); }
.legend-mid { color: var(--purple); }
.legend-low { color: var(--green); }
.legend-ufo { color: var(--yellow); font-size: 17px; text-shadow: 0 0 8px currentColor; }

.primary-button {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--pink-bright);
  border-radius: 3px;
  background: linear-gradient(180deg, rgba(255, 63, 134, 0.23), rgba(122, 25, 84, 0.22));
  color: var(--white);
  cursor: pointer;
  font-size: clamp(10px, 2.3vw, 13px);
  font-weight: 700;
  letter-spacing: 0.14em;
  box-shadow: 0 0 14px rgba(255, 63, 134, 0.22), inset 0 0 10px rgba(255, 63, 134, 0.1);
  text-shadow: 0 0 8px var(--pink-bright);
  transition: transform 120ms ease, background 120ms ease, box-shadow 120ms ease;
}

.primary-button:hover,
.primary-button:focus-visible {
  background: rgba(255, 63, 134, 0.42);
  box-shadow: 0 0 20px rgba(255, 63, 134, 0.45), inset 0 0 13px rgba(255, 63, 134, 0.2);
  outline: none;
}

.primary-button:active {
  transform: translateY(2px);
}

.screen-hint {
  margin: 13px 0 0;
  color: #806c9b;
  font-size: 8px;
  letter-spacing: 0.08em;
}

.controls-list {
  width: min(100%, 240px);
  margin: 0 auto 20px;
  padding: 10px 12px;
  border: 1px solid rgba(57, 231, 255, 0.22);
  border-radius: 6px;
  background: rgba(8, 3, 18, 0.42);
  text-align: left;
}

.controls-title {
  margin-bottom: 8px;
  color: var(--cyan);
  font-size: clamp(8px, 1.7vw, 10px);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-align: center;
  text-shadow: 0 0 8px rgba(57, 231, 255, 0.5);
}

.control-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 3px 0;
  color: #d6c8e4;
  font-size: clamp(8px, 1.7vw, 10px);
  letter-spacing: 0.04em;
}

.control-row + .control-row {
  border-top: 1px dashed rgba(154, 121, 189, 0.18);
}

.key {
  min-width: 54px;
  padding: 2px 6px;
  border: 1px solid #4a3261;
  border-bottom-width: 2px;
  border-radius: 3px;
  background: rgba(23, 16, 43, 0.85);
  color: var(--cyan);
  font-size: clamp(7px, 1.5vw, 9px);
  font-weight: 700;
  text-align: center;
  white-space: nowrap;
  box-shadow: inset 0 0 8px rgba(57, 231, 255, 0.08);
}

.control-name {
  color: #cbb8dc;
  text-align: right;
}

.pause-modal {
  position: absolute;
  z-index: 50;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 70px 22px 36px;
  background: linear-gradient(180deg, rgba(10, 5, 20, 0.66), rgba(10, 5, 20, 0.88));
  opacity: 0;
  visibility: hidden;
  transition: opacity 160ms ease, visibility 160ms ease;
  pointer-events: none;
}

.pause-modal.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.pause-card {
  width: min(100%, 340px);
  padding: 22px 20px 24px;
  border: 1px solid rgba(209, 107, 255, 0.55);
  border-radius: 8px;
  background: rgba(17, 9, 35, 0.92);
  box-shadow:
    0 0 0 4px rgba(10, 5, 20, 0.48),
    0 0 34px rgba(101, 43, 163, 0.32),
    inset 0 0 22px rgba(116, 54, 177, 0.12);
  text-align: center;
  backdrop-filter: blur(3px);
}

.pause-title {
  margin: 0;
  color: var(--white);
  font-size: clamp(22px, 5.6vw, 32px);
  line-height: 0.9;
  letter-spacing: 0.08em;
  text-shadow:
    3px 3px 0 #5e247c,
    0 0 13px rgba(255, 63, 134, 0.75);
}

.pause-subtitle {
  margin: 12px 0 20px;
  color: #c9b9d6;
  font-size: clamp(9px, 1.9vw, 11px);
  line-height: 1.5;
  letter-spacing: 0.05em;
}

.pause-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quit-button {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--orange);
  border-radius: 3px;
  background: linear-gradient(180deg, rgba(255, 145, 77, 0.16), rgba(122, 64, 25, 0.22));
  color: var(--white);
  cursor: pointer;
  font-size: clamp(10px, 2.3vw, 13px);
  font-weight: 700;
  letter-spacing: 0.14em;
  box-shadow: 0 0 14px rgba(255, 145, 77, 0.18), inset 0 0 10px rgba(255, 145, 77, 0.08);
  text-shadow: 0 0 8px var(--orange);
  transition: transform 120ms ease, background 120ms ease, box-shadow 120ms ease;
}

.quit-button:hover,
.quit-button:focus-visible {
  background: rgba(255, 145, 77, 0.38);
  box-shadow: 0 0 20px rgba(255, 145, 77, 0.4), inset 0 0 13px rgba(255, 145, 77, 0.18);
  outline: none;
}

.quit-button:active {
  transform: translateY(2px);
}

.pause-hint {
  margin: 15px 0 0;
  color: #806c9b;
  font-size: 8px;
  letter-spacing: 0.08em;
}

.under-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 38px;
  padding: 10px 6px 0;
  color: #826d9c;
  font-size: clamp(7px, 1.5vw, 9px);
  font-weight: 700;
  white-space: nowrap;
}

.mission-readout {
  color: var(--green);
  overflow: hidden;
  text-overflow: ellipsis;
  text-shadow: 0 0 8px rgba(72, 245, 140, 0.5);
}

.readout-led {
  width: 5px;
  height: 5px;
  margin-right: 5px;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}

.control-readout {
  text-align: right;
}

.control-readout span {
  color: var(--cyan);
  margin-left: 6px;
}

.sound-toggle {
  flex: 0 0 auto;
  padding: 4px 6px;
  border: 1px solid #4a3261;
  border-radius: 2px;
  background: transparent;
  color: #9b85b5;
  cursor: pointer;
  font-size: 8px;
  letter-spacing: 0.05em;
}

.sound-toggle:hover,
.sound-toggle:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  outline: none;
}

.touch-controls {
  width: min(100%, 500px);
  display: none;
  justify-content: center;
  gap: 10px;
  margin-top: 15px;
}

.touch-button {
  min-width: 66px;
  min-height: 45px;
  border: 1px solid #68418c;
  border-radius: 5px;
  background: rgba(32, 18, 55, 0.8);
  color: var(--cyan);
  box-shadow: inset 0 0 12px rgba(57, 231, 255, 0.05);
  touch-action: none;
  user-select: none;
}

.touch-button:active,
.touch-button.is-held {
  background: rgba(57, 231, 255, 0.2);
  border-color: var(--cyan);
  box-shadow: 0 0 15px rgba(57, 231, 255, 0.22);
}

.fire-button {
  min-width: 92px;
  color: var(--pink-bright);
  border-color: #91416f;
}

.fire-button:active,
.fire-button.is-held {
  background: rgba(255, 63, 134, 0.22);
  border-color: var(--pink-bright);
  box-shadow: 0 0 15px rgba(255, 63, 134, 0.24);
}

.footer-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  color: #4f3c67;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.footer-separator {
  color: #7e4ba7;
}

.corner-decoration {
  position: absolute;
  z-index: 31;
  width: 20px;
  height: 20px;
  pointer-events: none;
  opacity: 0.75;
}

.corner-top-left {
  top: 10px;
  left: 10px;
  border-top: 1px solid var(--pink);
  border-left: 1px solid var(--pink);
}

.corner-top-right {
  top: 10px;
  right: 10px;
  border-top: 1px solid var(--cyan);
  border-right: 1px solid var(--cyan);
}

.corner-bottom-left {
  bottom: 10px;
  left: 10px;
  border-bottom: 1px solid var(--green);
  border-left: 1px solid var(--green);
}

.corner-bottom-right {
  right: 10px;
  bottom: 10px;
  border-right: 1px solid var(--yellow);
  border-bottom: 1px solid var(--yellow);
}

@keyframes banner-pulse {
  0%, 100% { opacity: 0.55; transform: translate(-50%, -50%) scale(0.98); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.03); }
}

@media (max-width: 560px) {
  .app-shell {
    padding-top: 10px;
  }

  .brand-bar {
    margin-bottom: 8px;
  }

  .under-panel {
    min-height: 29px;
    padding-top: 8px;
  }

  .control-readout {
    display: none;
  }

  .touch-controls {
    display: flex;
  }
}

@media (max-width: 390px) {
  .hud {
    padding-right: 11px;
    padding-left: 11px;
  }

  .screen-card {
    padding-right: 14px;
    padding-left: 14px;
  }

  .score-legend {
    column-gap: 8px;
  }
}

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