body.arcade-menu-enabled #start-screen {
  display: none !important;
}

/* ─── LOBBY SHARE BAR — CODE-FIRST (share-qr-code-bar reuses .share-qr-code
   sizing from style.css but scaled down for the compact floating bar) ─────── */
#share-qr-code-bar {
  font-size: clamp(22px, 6vmin, 30px);
  padding: 0;
  min-height: 1.1em;
}

#arcade-start-screen {
  display: block;
  justify-content: flex-start;
  overflow: hidden;
  padding: clamp(16px, 2vw, 28px);
  background:
    radial-gradient(circle at top, rgba(255, 168, 0, 0.16), transparent 30%),
    radial-gradient(circle at 20% 20%, rgba(0, 196, 255, 0.14), transparent 32%),
    linear-gradient(180deg, rgba(5, 10, 18, 0.78), rgba(3, 7, 12, 0.94));
  text-align: left;
}

.arcade-menu-shell {
  --arcade-bg: rgba(6, 12, 20, 0.88);
  --arcade-panel: linear-gradient(180deg, rgba(18, 27, 42, 0.96), rgba(10, 16, 28, 0.96));
  --arcade-panel-soft: linear-gradient(180deg, rgba(14, 21, 33, 0.9), rgba(7, 12, 22, 0.92));
  --arcade-line: rgba(163, 194, 225, 0.16);
  --arcade-text: #f1f5fb;
  --arcade-muted: #9eb1c9;
  --arcade-amber: #ffc93d;
  --arcade-amber-deep: #a85c06;
  --arcade-cyan: #4be8ff;
  --arcade-red: #ff5a3d;
  --arcade-green: #5dffb0;
  position: relative;
  width: min(1380px, 100%);
  height: calc(100vh - clamp(32px, 4vw, 56px));
  margin: 0 auto;
  border-radius: 34px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.03), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 22%),
    var(--arcade-bg);
  box-shadow:
    0 26px 70px rgba(0, 0, 0, 0.48),
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    inset 0 0 0 1px rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(16px);
  overflow: hidden;
}

.arcade-menu-shell::before,
.arcade-menu-shell::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.arcade-menu-shell::before {
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    radial-gradient(ellipse at 50% -10%, rgba(255, 201, 61, 0.1), transparent 55%),
    radial-gradient(ellipse at 50% 110%, rgba(75, 232, 255, 0.08), transparent 55%);
  background-size: 100% 36px, 36px 100%, auto, auto;
  opacity: 0.26;
  animation: arcadeScanDrift 14s linear infinite;
}

.arcade-menu-shell::after {
  inset: 18px;
  border: 1px solid rgba(105, 229, 255, 0.12);
  border-radius: 24px;
  mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  mask-composite: exclude;
  padding: 1px;
  opacity: 0.55;
  box-shadow: 0 0 0 1px rgba(75, 232, 255, 0.06);
  animation: arcadeEdgeGlow 5s ease-in-out infinite;
}

@keyframes arcadeScanDrift {
  0% { background-position: 0 0, 0 0, center, center; }
  100% { background-position: 0 360px, 360px 0, center, center; }
}

@keyframes arcadeEdgeGlow {
  0%, 100% { opacity: 0.42; }
  50% { opacity: 0.72; }
}

@media (prefers-reduced-motion: reduce) {
  .arcade-menu-shell::before,
  .arcade-menu-shell::after {
    animation: none !important;
  }
}

.arcade-menu-shell,
.arcade-menu-shell button,
.arcade-menu-shell input {
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
}

.arcade-menu-shell h1,
.arcade-menu-shell h2,
.arcade-menu-shell h3,
.arcade-menu-shell strong,
.arcade-screen-title,
.arcade-panel-title {
  font-family: "Arial Black", "Impact", "Franklin Gothic Heavy", sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.arcade-menu-router {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: clamp(20px, 3vw, 34px);
  overflow: hidden;
}

.arcade-menu-screen {
  display: none;
  gap: 22px;
  flex: 1 1 auto;
  min-height: 0;
}

.arcade-menu-screen.active {
  display: flex;
  flex-direction: column;
  animation: arcadeScreenIn 180ms ease;
}

@keyframes arcadeScreenIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.arcade-customize-layout {
  display: grid;
  gap: 20px;
}

.arcade-title-block,
.arcade-panel {
  position: relative;
  border: 1px solid var(--arcade-line);
  border-radius: 24px;
  background: var(--arcade-panel);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 12px 30px rgba(0, 0, 0, 0.24);
}

.arcade-panel-kicker {
  color: var(--arcade-cyan);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.arcade-tagline,
.arcade-panel-copy,
.arcade-screen-copy {
  color: #d2deed;
  font-size: 15px;
  line-height: 1.7;
}

.arcade-fallback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.arcade-panel-badge {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  border-radius: 999px;
  padding: 0 14px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 190, 61, 0.12);
  border-color: rgba(255, 190, 61, 0.24);
  color: #ffe0a2;
}

.arcade-panel-badge--subtle {
  background: rgba(255, 255, 255, 0.05);
  color: #cdd9e8;
}

.arcade-menu-shell button {
  min-height: 54px;
  border-radius: 16px;
  border: 1px solid transparent;
  color: #fff;
  background: transparent;
  transition: transform 100ms ease, border-color 120ms ease, background 120ms ease, box-shadow 100ms ease;
}

.arcade-menu-shell button:hover {
  transform: translateY(-2px);
}

.arcade-menu-shell button:active {
  transform: translateY(1px);
}

.arcade-panel-action,
.arcade-back-btn {
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 46%),
    linear-gradient(180deg, rgba(34, 48, 70, 0.97), rgba(14, 21, 33, 0.97));
  color: #eef6ff;
  box-shadow: 0 4px 0 rgba(2, 5, 10, 0.8), 0 6px 12px rgba(0, 0, 0, 0.28);
}

.arcade-panel-action:hover,
.arcade-back-btn:hover {
  box-shadow: 0 5px 0 rgba(2, 5, 10, 0.8), 0 12px 20px rgba(0, 0, 0, 0.24);
}

.arcade-panel-action:active,
.arcade-back-btn:active {
  box-shadow: 0 1px 0 rgba(2, 5, 10, 0.8), 0 3px 8px rgba(0, 0, 0, 0.24);
}

.arcade-panel-action--secondary,
.arcade-menu-shell button.secondary {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 46%),
    linear-gradient(180deg, rgba(22, 32, 48, 0.97), rgba(8, 13, 23, 0.97));
  border-color: rgba(137, 168, 201, 0.18);
  color: #dce7f4;
}

.arcade-panel-action--major {
  position: relative;
  border-color: rgba(255, 201, 61, 0.42);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent 46%),
    radial-gradient(circle at left center, rgba(255, 201, 61, 0.26), transparent 55%),
    linear-gradient(180deg, rgba(52, 35, 10, 0.98), rgba(18, 12, 4, 0.98));
  color: #fff3d8;
  min-height: 64px;
  font-size: 15px;
  overflow: hidden;
  box-shadow: 0 5px 0 rgba(120, 68, 4, 0.85), 0 10px 18px rgba(163, 92, 6, 0.26);
}

.arcade-panel-action--major:hover {
  box-shadow: 0 6px 0 rgba(120, 68, 4, 0.85), 0 16px 24px rgba(163, 92, 6, 0.3);
}

.arcade-panel-action--major:active {
  box-shadow: 0 1px 0 rgba(120, 68, 4, 0.85), 0 3px 8px rgba(163, 92, 6, 0.24);
}

.arcade-panel {
  padding: 22px;
}

.arcade-panel-header,
.arcade-screen-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.arcade-panel-header {
  margin-bottom: 16px;
}

.arcade-panel-title {
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1;
  color: var(--arcade-text);
}

.arcade-panel-action {
  padding: 0 16px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  white-space: nowrap;
}

.arcade-panel-action--wide {
  width: 100%;
  justify-content: center;
}

.arcade-field {
  display: grid;
  gap: 8px;
  min-width: min(100%, 240px);
}

.arcade-field-label {
  color: var(--arcade-cyan);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.arcade-input {
  width: 100%;
  min-height: 56px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0 16px;
  color: #fff;
  background: rgba(3, 8, 14, 0.86);
  font-size: 15px;
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease, background 120ms ease;
}

.arcade-input::placeholder {
  color: #6f839e;
}

.arcade-input:focus {
  border-color: rgba(105, 229, 255, 0.42);
  box-shadow: 0 0 0 3px rgba(105, 229, 255, 0.12);
  background: rgba(6, 13, 22, 0.94);
}

.arcade-input--code {
  text-align: center;
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 900;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  min-height: 72px;
}

.arcade-switch {
  min-height: 56px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(3, 8, 14, 0.74);
  color: #dce8f5;
}

.arcade-switch input {
  width: 18px;
  height: 18px;
  accent-color: var(--arcade-amber);
}

.arcade-screen-header {
  padding: 4px 0 2px;
  flex: 0 0 auto;
}

.arcade-back-btn {
  min-width: 110px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
}

.arcade-screen-title-wrap {
  flex: 1 1 auto;
  display: grid;
  gap: 6px;
}

.arcade-screen-title {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 0.95;
  color: var(--arcade-text);
}

.arcade-rule-list {
  display: grid;
  gap: 12px;
}

.arcade-rule-row {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.arcade-rule-row strong {
  color: #fff2cb;
  font-size: 14px;
}

.arcade-rule-row span {
  color: var(--arcade-muted);
  font-size: 14px;
  line-height: 1.55;
}

.arcade-local-room-list {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
}

.arcade-divider {
  height: 1px;
  margin: 10px 0;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.12), transparent);
  flex: 0 0 auto;
}

.arcade-divider--label {
  position: relative;
  text-align: center;
  background: none;
}

.arcade-divider--label::before {
  content: "";
  position: absolute;
  inset: 50% 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.16), transparent);
}

.arcade-divider--label::after {
  content: attr(data-label);
  position: relative;
  display: inline-block;
  padding: 0 14px;
  background: var(--arcade-bg, #0a121e);
  color: var(--arcade-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.arcade-hint {
  margin-top: 10px;
  min-height: 20px;
}

.arcade-leaderboard-panel {
  max-width: 860px;
}

.arcade-customize-layout {
  grid-template-columns: minmax(320px, 0.78fr) minmax(0, 1.22fr);
  align-items: start;
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
}

.arcade-customize-sidebar,
.arcade-customize-main,
.arcade-option-columns {
  display: grid;
  gap: 18px;
}

.arcade-stage-panel {
  padding: 26px;
  background:
    radial-gradient(circle at left center, rgba(105, 229, 255, 0.14), transparent 36%),
    linear-gradient(180deg, rgba(15, 26, 40, 0.96), rgba(8, 12, 20, 0.96));
}

.arcade-stage-grid {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
}

.arcade-stage-radar {
  height: 220px;
  border-radius: 50%;
  border: 1px solid rgba(105, 229, 255, 0.18);
  background:
    radial-gradient(circle, rgba(105, 229, 255, 0.16), transparent 58%),
    linear-gradient(rgba(105, 229, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(105, 229, 255, 0.08) 1px, transparent 1px),
    rgba(4, 10, 16, 0.88);
  background-size: auto, 100% 28px, 28px 100%, auto;
  box-shadow: inset 0 0 30px rgba(105, 229, 255, 0.08);
}

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

.arcade-menu-footer {
  display: grid;
  gap: 6px;
  padding-top: 2px;
  flex: 0 0 auto;
}

.arcade-status-line,
.arcade-menu-footer .muted {
  color: #93a9c4;
}

.arcade-chip-strip,
.summary-grid,
.preset-grid,
.option-grid {
  display: grid;
  gap: 12px;
}

.arcade-chip-strip {
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  margin-bottom: 18px;
}

.arcade-menu-shell .summary-chip {
  display: grid;
  gap: 4px;
  min-height: 82px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.arcade-menu-shell .summary-chip span,
.arcade-menu-shell .summary-grid-row span,
.arcade-menu-shell .preset-label,
.arcade-menu-shell .preset-copy,
.arcade-menu-shell .option-btn span {
  color: var(--arcade-muted);
}

.arcade-menu-shell .summary-chip strong,
.arcade-menu-shell .summary-grid-row strong {
  color: #fff;
  font-size: 15px;
}

.arcade-menu-shell .summary-grid {
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
}

.arcade-menu-shell .summary-grid-row {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.arcade-menu-shell .preset-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.arcade-menu-shell .preset-card {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.arcade-menu-shell .preset-card.is-active {
  border-color: rgba(255, 190, 61, 0.34);
  box-shadow: inset 0 0 0 1px rgba(255, 190, 61, 0.12);
}

.arcade-menu-shell .preset-card-head,
.arcade-menu-shell .preset-actions {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.arcade-menu-shell .preset-card h4 {
  color: #fff;
  font-size: 18px;
}

.arcade-menu-shell .preset-state {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(105, 229, 255, 0.12);
  color: #dffbff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.arcade-menu-shell .preset-swatch-row {
  display: flex;
  gap: 8px;
}

.arcade-menu-shell .preset-swatch {
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: var(--swatch);
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.arcade-menu-shell .preset-actions {
  align-items: center;
}

.arcade-menu-shell .preset-actions button {
  flex: 1 1 0;
  min-width: 0;
  min-height: 46px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(180deg, rgba(34, 46, 67, 0.96), rgba(12, 18, 31, 0.96));
  color: #edf5ff;
  font-size: 12px;
  text-transform: uppercase;
}

.arcade-menu-shell .option-grid {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.arcade-menu-shell .option-btn {
  display: grid;
  gap: 10px;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  text-align: left;
}

.arcade-menu-shell .option-btn strong {
  font-size: 16px;
  color: #fff;
}

.arcade-menu-shell .option-btn--swatch {
  grid-template-columns: 24px minmax(0, 1fr);
  align-items: center;
}

.arcade-menu-shell .option-swatch {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: var(--swatch);
  border: 2px solid rgba(255, 255, 255, 0.12);
}

.arcade-menu-shell .option-copy {
  display: grid;
  gap: 2px;
}

.arcade-menu-shell .option-btn.is-selected {
  border-color: rgba(255, 190, 61, 0.34);
  background:
    linear-gradient(180deg, rgba(56, 35, 9, 0.86), rgba(27, 17, 6, 0.86)),
    rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 0 0 1px rgba(255, 190, 61, 0.14);
}

.arcade-menu-shell .local-room-list {
  display: grid;
  gap: 10px;
  align-content: start;
}

.arcade-menu-shell .local-state-card,
.arcade-menu-shell .local-room-row {
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.arcade-menu-shell .local-state-card {
  padding: 18px;
}

.arcade-menu-shell .local-room-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
}

.arcade-menu-shell .local-room-row:hover,
.arcade-menu-shell .local-room-row:focus {
  border-color: rgba(105, 229, 255, 0.32);
  outline: none;
}

.arcade-menu-shell .local-room-row-info {
  display: grid;
  gap: 6px;
}

.arcade-menu-shell .local-room-row-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.arcade-menu-shell .local-room-row-name {
  color: #fff;
  font-size: 18px;
  font-weight: 800;
}

.arcade-menu-shell .local-room-row-meta {
  color: var(--arcade-muted);
  font-size: 13px;
}

.arcade-menu-shell .local-room-join-btn {
  min-height: 42px;
  padding: 0 16px;
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(255, 190, 61, 0.2), rgba(134, 76, 8, 0.28));
  border: 1px solid rgba(255, 190, 61, 0.24);
  color: #fff1ca;
  font-size: 12px;
  text-transform: uppercase;
  white-space: nowrap;
}

.arcade-menu-shell .lb-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.03);
  color: #e8f1fc;
}

.arcade-menu-shell .lb-row:nth-child(-n + 3) {
  border-color: rgba(255, 190, 61, 0.22);
  background: rgba(255, 190, 61, 0.06);
}

/* ─── HOME SCREEN ─────────────────────────────────────────────────────────── */
.arcade-home-corner {
  position: absolute;
  top: clamp(20px, 3vw, 34px);
  right: clamp(20px, 3vw, 34px);
  z-index: 2;
  display: flex;
  gap: 10px;
}

.arcade-corner-btn {
  width: 46px;
  height: 46px;
  min-height: 0;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 46%),
    linear-gradient(180deg, rgba(34, 48, 70, 0.92), rgba(14, 21, 33, 0.92));
  color: #eef6ff;
  box-shadow: 0 3px 0 rgba(2, 5, 10, 0.8), 0 5px 10px rgba(0, 0, 0, 0.26);
}

.arcade-corner-btn:active {
  box-shadow: 0 1px 0 rgba(2, 5, 10, 0.8), 0 2px 6px rgba(0, 0, 0, 0.24);
}

.arcade-corner-btn--secondary {
  background: linear-gradient(180deg, rgba(20, 30, 46, 0.9), rgba(8, 13, 23, 0.9));
  border-color: rgba(137, 168, 201, 0.16);
}

.arcade-home-center {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(8px, 2.4vh, 32px);
  text-align: center;
}

.arcade-title-block {
  border: none;
  background: none;
  box-shadow: none;
  padding: 0;
  display: grid;
  gap: clamp(2px, 0.8vh, 8px);
  justify-items: center;
}

.arcade-title-block h1 {
  font-size: clamp(28px, 8vh, 96px);
  line-height: 0.9;
  color: var(--arcade-text);
  font-weight: 900;
  font-style: oblique -6deg;
  transform: skewX(-2deg);
  -webkit-text-stroke: 1.5px rgba(4, 8, 14, 0.9);
  text-shadow:
    0 2px 0 rgba(4, 8, 14, 0.9),
    0 4px 0 rgba(4, 8, 14, 0.75),
    0 6px 10px rgba(0, 0, 0, 0.5),
    0 0 20px rgba(255, 201, 61, 0.5),
    0 0 46px rgba(255, 201, 61, 0.28);
  animation: arcadeTitleGlow 3.4s ease-in-out infinite;
}

@keyframes arcadeTitleGlow {
  0%, 100% {
    text-shadow:
      0 2px 0 rgba(4, 8, 14, 0.9),
      0 4px 0 rgba(4, 8, 14, 0.75),
      0 6px 10px rgba(0, 0, 0, 0.5),
      0 0 20px rgba(255, 201, 61, 0.5),
      0 0 46px rgba(255, 201, 61, 0.28);
  }
  50% {
    text-shadow:
      0 2px 0 rgba(4, 8, 14, 0.9),
      0 4px 0 rgba(4, 8, 14, 0.75),
      0 6px 10px rgba(0, 0, 0, 0.5),
      0 0 30px rgba(255, 201, 61, 0.7),
      0 0 64px rgba(75, 232, 255, 0.3);
  }
}

@media (prefers-reduced-motion: reduce) {
  .arcade-title-block h1 {
    animation: none !important;
  }
}

.arcade-title-block .arcade-tagline {
  max-width: 46ch;
  font-size: clamp(12px, 1.8vh, 15px);
}

.arcade-home-namefield {
  width: min(420px, 88vw);
  text-align: left;
}

.arcade-home-namefield .arcade-input {
  text-align: center;
  min-height: clamp(40px, 7vh, 56px);
}

.arcade-home-buttons {
  width: min(560px, 92vw);
  display: grid;
  gap: clamp(8px, 1.6vh, 14px);
}

.arcade-home-btn {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  padding: 0 22px;
  min-height: clamp(44px, 9vh, 76px);
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), transparent 46%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03), transparent 22%),
    linear-gradient(180deg, rgba(30, 44, 66, 0.98), rgba(9, 15, 26, 0.98));
  box-shadow:
    0 5px 0 rgba(2, 5, 10, 0.85),
    0 9px 16px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  text-align: left;
  overflow: hidden;
  transition: transform 100ms ease, box-shadow 100ms ease, border-color 120ms ease;
}

.arcade-home-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.22), transparent);
  transform: skewX(-18deg);
  pointer-events: none;
}

.arcade-home-btn:hover {
  border-color: rgba(105, 229, 255, 0.4);
  transform: translateY(-2px);
  box-shadow:
    0 7px 0 rgba(2, 5, 10, 0.85),
    0 18px 28px rgba(0, 0, 0, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.arcade-home-btn:active {
  transform: translateY(3px);
  box-shadow:
    0 2px 0 rgba(2, 5, 10, 0.85),
    0 4px 10px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.arcade-home-btn--primary {
  border-color: rgba(255, 201, 61, 0.46);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14), transparent 46%),
    radial-gradient(circle at left center, rgba(255, 201, 61, 0.26), transparent 42%),
    linear-gradient(180deg, rgba(52, 35, 10, 0.98), rgba(18, 12, 4, 0.98));
  box-shadow:
    0 5px 0 rgba(120, 68, 4, 0.85),
    0 10px 20px rgba(163, 92, 6, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.14);
  animation: arcadePrimaryShine 3.6s ease-in-out infinite;
}

.arcade-home-btn--primary:hover {
  box-shadow:
    0 7px 0 rgba(120, 68, 4, 0.85),
    0 20px 30px rgba(163, 92, 6, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.14);
}

.arcade-home-btn--primary:active {
  box-shadow:
    0 2px 0 rgba(120, 68, 4, 0.85),
    0 4px 10px rgba(163, 92, 6, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.arcade-home-btn--primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 34%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 234, 170, 0.4), transparent);
  transform: skewX(-18deg);
  pointer-events: none;
  animation: arcadeShineSweep 3.6s ease-in-out infinite;
}

@keyframes arcadeShineSweep {
  0%, 30% { left: -60%; }
  70%, 100% { left: 130%; }
}

@keyframes arcadePrimaryShine {
  0%, 100% { border-color: rgba(255, 201, 61, 0.46); }
  50% { border-color: rgba(255, 201, 61, 0.68); }
}

@media (prefers-reduced-motion: reduce) {
  .arcade-home-btn--primary,
  .arcade-home-btn--primary::after {
    animation: none !important;
  }
}

.arcade-home-btn-icon {
  font-size: 26px;
  line-height: 1;
}

.arcade-home-btn-label {
  font-family: "Arial Black", "Impact", "Franklin Gothic Heavy", sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: clamp(16px, 2.2vw, 22px);
  color: #fff;
}

/* ─── CREATE / JOIN SCREENS ───────────────────────────────────────────────── */
.arcade-create-panel {
  max-width: 620px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  gap: clamp(8px, 1.6vh, 16px);
  align-content: center;
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
}

.arcade-join-scan-panel {
  flex: 1 1 auto;
  min-height: 64px;
  display: flex;
  flex-direction: column;
}

.arcade-join-code-panel {
  flex: 0 0 auto;
  max-width: 620px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  gap: clamp(8px, 1.6vh, 14px);
}

.arcade-join-code-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
}

@media (max-width: 1180px) {
  .arcade-customize-layout {
    grid-template-columns: 1fr;
  }

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

  .arcade-stage-grid {
    grid-template-columns: 180px minmax(0, 1fr);
  }
}

@media (max-width: 780px) {
  .arcade-title-block h1 {
    font-size: 40px;
    letter-spacing: 0.01em;
  }

  #arcade-start-screen {
    padding: 10px;
  }

  .arcade-menu-router {
    padding: 14px;
    gap: 14px;
  }

  .arcade-menu-shell {
    height: calc(100vh - 20px);
    border-radius: 22px;
  }

  .arcade-menu-shell::after {
    inset: 10px;
    border-radius: 14px;
  }

  .arcade-panel,
  .arcade-title-block {
    border-radius: 18px;
  }

  .arcade-panel {
    padding: 16px;
  }

  .arcade-option-columns {
    grid-template-columns: 1fr;
  }

  .arcade-screen-header,
  .arcade-panel-header,
  .arcade-menu-shell .preset-card-head,
  .arcade-menu-shell .preset-actions,
  .arcade-menu-shell .local-room-row {
    flex-direction: column;
    align-items: stretch;
  }

  .arcade-screen-title {
    font-size: 28px;
  }

  .arcade-stage-grid,
  .arcade-rule-row {
    grid-template-columns: 1fr;
  }

  .arcade-stage-radar {
    height: 180px;
  }

  .arcade-menu-shell .preset-grid,
  .arcade-menu-shell .summary-grid,
  .arcade-chip-strip {
    grid-template-columns: 1fr;
  }

  .arcade-home-corner {
    top: 14px;
    right: 14px;
  }

  .arcade-corner-btn {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .arcade-join-code-actions {
    grid-template-columns: 1fr;
  }
}

/* ─── SHORT VIEWPORTS (phones in landscape, small windows) ────────────────
   Height-based, independent of width — a landscape phone is wide but short.
   Tightens shell chrome so every screen still fits with zero page scroll. */
@media (max-height: 480px) {
  #arcade-start-screen {
    padding: 8px;
  }

  .arcade-menu-router {
    padding: 10px clamp(14px, 3vw, 28px);
    gap: 8px;
  }

  .arcade-menu-shell {
    border-radius: 18px;
  }

  .arcade-home-corner {
    top: 10px;
    right: 10px;
  }

  .arcade-corner-btn {
    width: 34px;
    height: 34px;
    font-size: 14px;
    border-radius: 10px;
  }

  .arcade-screen-header {
    padding: 0;
  }

  .arcade-back-btn {
    min-height: 38px;
    min-width: 84px;
    font-size: 11px;
  }

  .arcade-screen-title {
    font-size: clamp(20px, 5vh, 30px);
  }

  .arcade-screen-copy {
    display: none;
  }

  .arcade-menu-footer {
    display: none;
  }

  .arcade-panel {
    padding: 12px;
  }

  .arcade-menu-shell button {
    min-height: 40px;
  }

  .arcade-input,
  .arcade-switch {
    min-height: 40px;
  }

  .arcade-input--code {
    min-height: 48px;
    font-size: clamp(18px, 5vh, 28px);
  }

  .arcade-panel-action--major {
    min-height: 44px;
    font-size: 13px;
  }

  .arcade-panel-header {
    margin-bottom: 8px;
  }

  .arcade-hint {
    margin-top: 4px;
    font-size: 11px;
    min-height: 0;
  }

  .arcade-join-scan-panel {
    min-height: 0;
    flex: 0 1 auto;
    max-height: 96px;
  }

  .arcade-join-scan-panel .arcade-panel-header {
    flex-direction: row;
    align-items: center;
  }

  .arcade-join-scan-panel .arcade-panel-title {
    font-size: 15px;
  }

  .arcade-join-scan-panel .arcade-panel-kicker {
    display: none;
  }

  .arcade-local-room-list {
    min-height: 0;
  }

  .arcade-divider {
    margin: 6px 0;
  }

  .arcade-join-code-actions {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}