* {
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, rgba(77, 232, 216, 0.08), transparent 30%), var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  overflow: hidden;
}

body.is-screen-view .brand-panel,
body.is-screen-view .menu-stack,
body.is-screen-view .radar-ring,
body.is-screen-view .radar-sweep,
body.is-screen-view .blip {
  display: none;
}

body.is-screen-view .app-shell {
  justify-content: center;
  padding-top: 2rem;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.03), transparent 45%, rgba(77,232,216,0.05));
  pointer-events: none;
}

.hud-background {
  position: fixed;
  inset: 0;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    radial-gradient(circle at center, rgba(77,232,216,0.14), transparent 42%);
  background-size: 2.6rem 2.6rem, 2.6rem 2.6rem, auto;
  opacity: 0.95;
}

.radar-ring {
  position: absolute;
  inset: 50% auto auto 50%;
  border: 1px solid rgba(77, 232, 216, 0.22);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: inset 0 0 12px rgba(77, 232, 216, 0.16);
}

.radar-ring-1 {
  width: 40rem;
  height: 40rem;
}

.radar-ring-2 {
  width: 28rem;
  height: 28rem;
  opacity: 0.8;
}

.radar-ring-3 {
  width: 16rem;
  height: 16rem;
  opacity: 0.65;
}

.radar-sweep {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40rem;
  height: 40rem;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: radarSweep 12s linear infinite;
  filter: drop-shadow(0 0 16px rgba(157, 223, 103, 0.3));
}

.radar-sweep::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20rem;
  height: 0.12rem;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent 0%, rgba(194, 255, 136, 0.98) 35%, rgba(77, 232, 216, 0.55) 100%);
  box-shadow: 0 0 12px rgba(157, 223, 103, 0.7);
  transform-origin: 0% 50%;
  animation: sweepRotate 12s linear infinite;
}

.blip {
  position: absolute;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: rgba(157, 223, 103, 0.92);
  box-shadow: 0 0 10px rgba(157, 223, 103, 0.6);
  opacity: 0;
  transform: scale(0.7);
  transition: opacity 520ms ease, transform 520ms ease;
  pointer-events: none;
}

.blip.is-visible {
  opacity: 0.95;
  transform: scale(1.05);
}

.blip-1 {
  top: calc(50% + 8.3rem);
  left: calc(50% - 12.2rem);
}

.blip-2 {
  top: calc(50% + 2.4rem);
  left: calc(50% + 11.6rem);
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent, rgba(77, 232, 216, 0.04) 30%, transparent 60%);
  animation: drift 11s ease-in-out infinite;
}

.app-shell {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--space-6) var(--space-4);
  text-align: center;
}

.brand-panel,
.footer-panel {
  width: min(100%, 38rem);
  padding: var(--space-5) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--color-panel), var(--color-panel-strong));
  box-shadow: var(--shadow-glow), inset 0 0 18px rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand-panel {
  display: grid;
  justify-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.brand-copy h1 {
  margin: 0;
  font-size: var(--font-size-hero);
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.menu-stack {
  display: grid;
  gap: var(--space-3);
  width: min(100%, 22rem);
  margin-bottom: var(--space-4);
}

.menu-button {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgba(13, 29, 45, 0.95), rgba(6, 17, 29, 0.95));
  color: var(--color-text);
  padding: 1rem 1.35rem;
  font-size: var(--font-size-lg);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-fast), background var(--transition-medium), color var(--transition-fast);
  box-shadow: inset 0 0 12px rgba(77, 232, 216, 0.05), 0 0 18px rgba(0, 0, 0, 0.24);
}

.menu-button:hover,
.menu-button:focus-visible {
  transform: translateY(-2px);
  border-color: var(--color-border-strong);
  color: var(--color-accent-strong);
  box-shadow: inset 0 0 18px rgba(77, 232, 216, 0.08), 0 0 24px rgba(77, 232, 216, 0.16);
}

.menu-button:active,
.menu-button.is-active {
  transform: translateY(2px) scale(0.99);
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: inset 0 0 18px rgba(77, 232, 216, 0.16), 0 0 18px rgba(77, 232, 216, 0.12);
}

.footer-panel {
  display: grid;
  gap: var(--space-1);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.footer-panel p {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

.view-screen {
  display: none;
  width: 100%;
}

.view-screen.is-active {
  display: block;
}

.lobby-shell {
  width: calc(100% - 10vw);
  max-width: calc(100% - 10vw);
  height: min(76vh, 44rem);
  margin: 0 5vw;
  padding: 1.35rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(8, 23, 39, 0.92), rgba(10, 27, 46, 0.96));
  box-shadow: var(--shadow-glow), inset 0 0 16px rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  display: flex;
  flex-direction: column;
}

.lobby-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.lobby-create-button {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: linear-gradient(145deg, rgba(13, 29, 45, 0.95), rgba(6, 17, 29, 0.95));
  color: var(--color-text);
  padding: 0.7rem 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
}

.lobby-create-button:hover,
.lobby-create-button:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.lobby-title {
  color: var(--color-accent-strong);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.95rem;
}

.lobby-legend,
.lobby-row {
  display: grid;
  grid-template-columns: minmax(0, 2fr) 1fr 1fr 0.75fr;
  gap: 0.75rem;
  align-items: center;
  padding: 0.8rem 0.95rem;
  border-bottom: 1px solid rgba(108, 174, 255, 0.16);
}

.lobby-legend {
  color: var(--color-muted);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  padding-top: 0;
  padding-bottom: 0.6rem;
}

.lobby-row {
  color: var(--color-text);
}

.lobby-name-block {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.lobby-name-block span,
.lobby-spectators,
.lobby-players,
.lobby-access {
  color: var(--color-muted);
}

.lobby-list {
  display: grid;
  gap: 0.25rem;
  overflow-y: auto;
  padding-right: 0.35rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(77, 232, 216, 0.35) transparent;
}

.game-creation-form {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
  max-width: 28rem;
}

.game-creation-form label {
  display: grid;
  gap: 0.45rem;
  text-align: left;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
}

.game-creation-form input {
  border: 1px solid rgba(108, 174, 255, 0.21);
  border-radius: var(--radius-sm);
  padding: 0.8rem 0.95rem;
  background: rgba(7, 18, 31, 0.95);
  color: var(--color-text);
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.checkbox-row input {
  width: auto;
  margin: 0;
}

.game-status {
  display: grid;
  gap: 0.4rem;
  margin: 1.2rem 0 1.4rem;
  color: var(--color-muted);
  text-align: left;
}

.game-status p {
  margin: 0;
}

.game-toggle-button {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.2rem;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 700;
  cursor: pointer;
}

.game-toggle-button.green {
  background: rgba(36, 117, 88, 0.85);
}

.game-toggle-button.red {
  background: rgba(146, 49, 49, 0.85);
}

@media (max-width: 720px) {
  .app-shell {
    padding: var(--space-4);
  }

  .brand-panel,
  .footer-panel {
    width: 100%;
    padding: var(--space-4);
  }

  .brand-copy h1 {
    letter-spacing: 0.1em;
  }
}