@import url("https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;800&family=Rajdhani:wght@400;500;600;700&display=swap");

:root {
  --bg: #0a0f1e;
  --bg-deep: #050816;
  --bg-panel: rgba(7, 16, 33, 0.74);
  --bg-panel-strong: rgba(4, 10, 22, 0.88);
  --line-soft: rgba(0, 229, 255, 0.2);
  --line-strong: rgba(0, 229, 255, 0.78);
  --text: #e0f3ff;
  --muted: #6b7a90;
  --cyan: #00e5ff;
  --magenta: #ff2eff;
  --purple: #8a2eff;
  --lime: #a6ff00;
  --danger: #ff3366;
  --warning: #ffb100;
  --shadow-cyan: 0 0 12px rgba(0, 229, 255, 0.45);
  --shadow-magenta: 0 0 18px rgba(255, 46, 255, 0.3);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --transition-fast: 120ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-normal: 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-slow: 360ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

* {
  box-sizing: border-box;
}

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

body {
  overflow: hidden;
  font-family: "Rajdhani", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(0, 229, 255, 0.09), transparent 24%),
    radial-gradient(circle at top right, rgba(255, 46, 255, 0.12), transparent 26%),
    linear-gradient(180deg, #030613 0%, #060b17 38%, #04070e 100%);
}

button,
kbd {
  font: inherit;
}

.space-backdrop,
.app-shell,
.game-stage,
#game-canvas {
  position: fixed;
  inset: 0;
}

.space-backdrop {
  pointer-events: none;
}

.space-backdrop__grid,
.space-backdrop__vignette {
  position: absolute;
  inset: 0;
}

.space-backdrop__grid {
  background:
    linear-gradient(rgba(0, 229, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, black 32%, transparent 95%);
  opacity: 0.35;
}

.space-backdrop__vignette {
  background:
    radial-gradient(circle at center, transparent 45%, rgba(0, 0, 0, 0.44) 100%),
    radial-gradient(circle at 20% 18%, rgba(0, 229, 255, 0.14), transparent 20%),
    radial-gradient(circle at 78% 26%, rgba(255, 46, 255, 0.14), transparent 22%);
}

.game-stage {
  isolation: isolate;
}

#game-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.game-stage__scanlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(255, 255, 255, 0.015) 48%,
    transparent 100%
  );
  background-size: 100% 7px;
  opacity: 0.35;
}

.panel,
.overlay__panel,
.action-btn,
.primary-btn,
.secondary-btn,
.stat-card,
.joystick__ring {
  border: 1px solid rgba(0, 229, 255, 0.28);
  background:
    linear-gradient(180deg, rgba(8, 18, 35, 0.92), rgba(4, 10, 22, 0.74)),
    rgba(0, 0, 0, 0.18);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03), var(--shadow-cyan);
  backdrop-filter: blur(18px);
}

.panel,
.overlay__panel,
.stat-card {
  position: relative;
  overflow: hidden;
}

.panel::before,
.overlay__panel::before,
.stat-card::before,
.action-btn::before,
.primary-btn::before,
.secondary-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.16), transparent 26%, transparent 74%, rgba(255, 46, 255, 0.18));
  opacity: 0.9;
}

.label {
  display: block;
  color: var(--cyan);
  font-family: "Orbitron", sans-serif;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.value {
  font-family: "Orbitron", sans-serif;
  font-size: 1.3rem;
  letter-spacing: 0.06em;
}

.value--timer {
  font-size: clamp(1.35rem, 1.8vw, 1.85rem);
}

.value--status {
  color: var(--lime);
}

.hud {
  position: absolute;
  top: max(18px, env(safe-area-inset-top));
  left: max(18px, env(safe-area-inset-left));
  right: max(18px, env(safe-area-inset-right));
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr)) auto;
  gap: var(--space-3);
  align-items: stretch;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.hud.is-hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px);
}

.hud__cluster {
  min-height: 82px;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
}

.hud__cluster--status .value {
  font-size: 1rem;
}

.hud__actions,
.mobile-controls__actions,
.overlay__actions,
.hero-panel__metrics,
.overlay__grid {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.hud__actions {
  justify-content: flex-end;
  align-items: stretch;
}

.action-btn,
.primary-btn,
.secondary-btn {
  position: relative;
  border-radius: 999px;
  color: var(--text);
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    border-color var(--transition-fast),
    background-color var(--transition-fast);
}

.action-btn,
.secondary-btn {
  min-height: 48px;
  padding: 0 18px;
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.primary-btn {
  min-height: 56px;
  padding: 0 22px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #04111d;
  border: 1px solid rgba(166, 255, 0, 0.5);
  background: linear-gradient(135deg, rgba(166, 255, 0, 0.98), rgba(0, 229, 255, 0.92));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.25),
    0 0 24px rgba(0, 229, 255, 0.34);
}

.primary-btn::before {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.18), transparent 60%);
}

.action-btn:hover,
.secondary-btn:hover,
.primary-btn:hover,
.action-btn:focus-visible,
.secondary-btn:focus-visible,
.primary-btn:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(0, 229, 255, 0.72);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.04),
    0 0 0 2px rgba(0, 229, 255, 0.14),
    0 0 24px rgba(0, 229, 255, 0.28);
  outline: none;
}

.action-btn:active,
.secondary-btn:active,
.primary-btn:active {
  transform: translateY(1px) scale(0.985);
}

.action-btn--round {
  min-width: 52px;
  min-height: 52px;
  padding: 0;
  border-radius: 50%;
  font-family: "Orbitron", sans-serif;
}

.side-panel {
  position: absolute;
  inset: max(18px, env(safe-area-inset-top)) auto max(18px, env(safe-area-inset-bottom))
    max(18px, env(safe-area-inset-left));
  z-index: 3;
  width: min(360px, calc(100vw - 36px));
  display: grid;
  align-content: end;
  gap: var(--space-4);
  pointer-events: none;
}

.side-panel > * {
  pointer-events: auto;
}

.hero-panel,
.info-panel,
.overlay__panel,
.stat-card {
  border-radius: var(--radius-lg);
}

.hero-panel {
  padding: 24px;
}

.hero-panel__eyebrow,
.overlay__eyebrow {
  margin: 0 0 10px;
  color: var(--cyan);
  font-family: "Orbitron", sans-serif;
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.overlay__eyebrow--danger {
  color: var(--danger);
}

.hero-panel__title {
  margin: 0;
  display: grid;
  line-height: 0.9;
  text-transform: uppercase;
  font-family: "Orbitron", sans-serif;
  font-size: clamp(3rem, 7vw, 4.8rem);
  letter-spacing: 0.06em;
}

.hero-panel__title span:nth-child(1) {
  color: var(--cyan);
  text-shadow: 0 0 24px rgba(0, 229, 255, 0.34);
}

.hero-panel__title span:nth-child(2) {
  color: #eff6ff;
}

.hero-panel__title span:nth-child(3) {
  color: var(--magenta);
  text-shadow: 0 0 24px rgba(255, 46, 255, 0.34);
}

.hero-panel__subtitle,
.overlay__text,
.info-block p {
  margin: 0;
  color: rgba(224, 243, 255, 0.9);
  font-size: 1.08rem;
  line-height: 1.32;
}

.hero-panel__metrics {
  margin-top: var(--space-4);
}

.hero-panel__metrics > div,
.stat-card {
  flex: 1 1 140px;
}

.hero-panel__metrics strong,
.stat-card strong {
  display: block;
  margin-top: 6px;
  font-size: 1rem;
}

.info-panel {
  padding: 20px 24px;
  display: grid;
  gap: var(--space-4);
}

.info-block {
  display: grid;
  gap: 8px;
}

kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  min-height: 30px;
  margin: 0 2px;
  border: 1px solid rgba(224, 243, 255, 0.3);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.06);
  font-family: "Orbitron", sans-serif;
  font-size: 0.8rem;
}

.overlay {
  position: absolute;
  inset: 0;
  z-index: 6;
  display: grid;
  place-items: center;
  padding: max(24px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right))
    max(24px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));
  background: rgba(3, 6, 18, 0.52);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.overlay.is-active {
  opacity: 1;
  pointer-events: auto;
}

.overlay__panel {
  width: min(620px, 100%);
  padding: 28px;
}

.overlay__panel--wide {
  width: min(720px, 100%);
}

.overlay__panel h2 {
  margin: 0 0 12px;
  font-family: "Orbitron", sans-serif;
  font-size: clamp(1.9rem, 3.4vw, 2.8rem);
}

.overlay__actions {
  margin-top: 20px;
}

.overlay__grid {
  margin-top: 20px;
}

.stat-card {
  padding: 16px 18px;
}

.mobile-controls {
  position: absolute;
  inset: auto max(18px, env(safe-area-inset-right)) max(18px, env(safe-area-inset-bottom))
    max(18px, env(safe-area-inset-left));
  z-index: 5;
  display: none;
  justify-content: space-between;
  align-items: end;
  pointer-events: none;
}

.mobile-controls.is-visible {
  display: flex;
}

.joystick,
.mobile-controls__actions {
  pointer-events: auto;
}

.joystick {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.joystick.is-visible {
  display: flex;
}

.joystick__ring {
  position: relative;
  width: clamp(96px, 26vw, 120px);
  height: clamp(96px, 26vw, 120px);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(0, 229, 255, 0.14), rgba(0, 0, 0, 0.3) 56%),
    rgba(4, 10, 22, 0.72);
}

.joystick.is-active .joystick__ring {
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.03),
    0 0 0 2px rgba(0, 229, 255, 0.14),
    0 0 28px rgba(0, 229, 255, 0.42);
}

.joystick__thumb {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 44%;
  height: 44%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(167, 247, 255, 0.48);
  background:
    radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.52), transparent 38%),
    radial-gradient(circle at center, rgba(0, 229, 255, 0.88), rgba(9, 34, 53, 0.88) 70%);
  box-shadow:
    inset 0 0 18px rgba(255, 255, 255, 0.12),
    0 0 18px rgba(0, 229, 255, 0.42);
}

.joystick__hint {
  margin: 0;
  font-size: 0.94rem;
  color: rgba(224, 243, 255, 0.82);
}

.mobile-controls__actions {
  display: grid;
  gap: var(--space-3);
}

.toast {
  position: absolute;
  left: 50%;
  bottom: max(24px, env(safe-area-inset-bottom));
  transform: translateX(-50%) translateY(20px);
  z-index: 8;
  min-width: min(320px, calc(100vw - 32px));
  max-width: min(560px, calc(100vw - 32px));
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid rgba(0, 229, 255, 0.28);
  background: rgba(4, 10, 22, 0.86);
  color: var(--text);
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
  box-shadow: var(--shadow-cyan);
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

body.state-playing .side-panel,
body.state-paused .side-panel,
body.state-won .side-panel,
body.state-lost .side-panel {
  opacity: 0.4;
}

@media (max-width: 1180px) {
  .hud {
    grid-template-columns: repeat(2, minmax(150px, 1fr));
  }

  .hud__actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }
}

@media (max-width: 900px) {
  .side-panel {
    width: min(100% - 36px, 440px);
    top: auto;
  }

  .hero-panel__title {
    font-size: clamp(2.4rem, 12vw, 3.4rem);
  }

  .hero-panel__subtitle,
  .overlay__text,
  .info-block p {
    font-size: 1rem;
  }
}

@media (max-width: 720px) {
  .hud {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
  }

  .hud__cluster {
    min-height: 74px;
    padding: 10px 12px;
  }

  .hud__actions {
    gap: var(--space-2);
  }

  .action-btn,
  .secondary-btn,
  .primary-btn {
    min-height: 44px;
    font-size: 0.96rem;
  }

  .side-panel {
    right: max(18px, env(safe-area-inset-right));
    bottom: auto;
    top: max(96px, env(safe-area-inset-top));
    display: grid;
    gap: var(--space-3);
  }

  .hero-panel,
  .info-panel,
  .overlay__panel {
    padding: 18px;
  }
}

@media (pointer: coarse), (max-width: 900px) {
  .mobile-controls {
    display: flex;
  }
}

@media (max-width: 560px) {
  .hud {
    top: max(12px, env(safe-area-inset-top));
    left: max(12px, env(safe-area-inset-left));
    right: max(12px, env(safe-area-inset-right));
    grid-template-columns: 1fr 1fr;
  }

  .hud__cluster--fx,
  .side-panel .info-panel {
    display: none;
  }

  .side-panel {
    top: auto;
    bottom: max(132px, calc(env(safe-area-inset-bottom) + 116px));
    width: calc(100vw - 24px);
    left: 12px;
    right: 12px;
  }

  .overlay__actions,
  .hero-panel__metrics,
  .overlay__grid {
    flex-direction: column;
  }

  .overlay__panel h2 {
    font-size: 1.7rem;
  }
}