/* ========================================
   Circuito Maluco — Estilos
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@700;900&family=Nunito:wght@600;700;800&display=swap');

:root {
  --bg:       #060810;
  --panel:    #0d1117;
  --border:   #1a2236;
  --cyan:     #00fff5;
  --cyan-dim: #004d4a;
  --cyan-glow:#00fff580;
  --text:     #c8d8f0;
  --cell-bg:  #0a0f1a;
  --cell-on:  #071a19;
  --blocked:  #080c14;
  /* Tabuleiro: células quadradas, colunas de largura fixa (evita esticar em larguras grandes) */
  --board-cell: 60px;
  --board-gap: 4px;
  --grid-cols: 4;
  /* Transições: modais e troca de fase */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.2, 0.64, 1);
  --dur-modal-back: 0.32s;
  --dur-modal-box: 0.4s;
  --dur-level: 0.48s;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

/* Scanlines overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent, transparent 2px,
    rgba(0,0,0,0.04) 2px, rgba(0,0,0,0.04) 4px
  );
  pointer-events: none;
  z-index: 999;
}

html {
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Nunito', sans-serif;
  min-height: 100dvh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
  padding-bottom: max(12px, env(safe-area-inset-bottom, 12px));
}

/* ---- HEADER ---- */
header {
  width: 100%;
  max-width: 500px;
  padding: 18px 20px 10px;
  text-align: center;
}

.title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(1.3rem, 5vw, 2rem);
  font-weight: 900;
  color: var(--cyan);
  text-shadow: 0 0 20px var(--cyan-glow), 0 0 40px var(--cyan-glow);
  letter-spacing: 3px;
}

.subtitle {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(200,216,240,0.35);
  margin-top: 4px;
}

/* ---- HUD ---- */
.hud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  width: 100%;
  max-width: 500px;
  padding: 0 16px 6px;
  justify-content: center;
}

/* Progresso da série (1 → 2 → 3) */
.phase-track {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  width: 100%;
  max-width: 500px;
  padding: 4px 16px 10px;
}

.phase-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 3.2rem;
  padding: 8px 10px;
  border-radius: 12px;
  border: 2px solid var(--border);
  background: rgba(0,0,0,0.2);
  transition: opacity 0.2s, transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.phase-step__n {
  font-family: 'Orbitron', monospace;
  font-size: 1.1rem;
  font-weight: 900;
  line-height: 1.1;
  color: rgba(200,216,240,0.35);
}

.phase-step__t {
  font-size: 0.52rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(200,216,240,0.22);
  margin-top: 2px;
}

.phase-track__bar {
  flex: 1 1 12px;
  max-width: 28px;
  height: 2px;
  margin: 0 2px;
  background: linear-gradient(90deg, var(--border), rgba(0,255,245,0.15), var(--border));
  border-radius: 1px;
  align-self: center;
  opacity: 0.6;
}

.phase-step--todo {
  opacity: 0.38;
  filter: grayscale(0.35);
  pointer-events: none;
}

.phase-step--done {
  opacity: 0.65;
  border-color: rgba(0,255,245,0.25);
}

.phase-step--done .phase-step__n {
  color: rgba(0,255,245,0.45);
  font-size: 0.85rem;
}

.phase-step--done .phase-step__n::after {
  content: ' ✓';
  font-size: 0.65rem;
  vertical-align: super;
}

.phase-step--current {
  opacity: 1;
  filter: none;
  border-color: var(--cyan);
  background: rgba(0,255,245,0.1);
  box-shadow: 0 0 24px rgba(0,255,245,0.18);
  transform: scale(1.06);
  z-index: 1;
}

.phase-step--current .phase-step__n {
  color: var(--cyan);
  text-shadow: 0 0 14px var(--cyan-glow);
}

.phase-step--current .phase-step__t {
  color: rgba(0,255,245,0.55);
}

/* FAB “Como jogar” — acima do jogo, abaixo dos modais 200+ */
.help-fab {
  position: fixed;
  z-index: 180;
  right: max(14px, env(safe-area-inset-right, 14px));
  bottom: max(16px, env(safe-area-inset-bottom, 16px));
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  background: linear-gradient(165deg, rgba(0,255,245,0.12), var(--panel));
  color: var(--cyan);
  font-family: 'Orbitron', monospace;
  font-size: 1.35rem;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5), 0 0 28px rgba(0,255,245,0.15);
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.help-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 32px rgba(0,0,0,0.55), 0 0 40px rgba(0,255,245,0.25);
  background: rgba(0,255,245,0.14);
}

.help-fab:active {
  transform: scale(0.98);
}

/* FAB ranking — canto inferior esquerdo (espelha o “?”) */
.rank-fab {
  position: fixed;
  z-index: 180;
  left: max(14px, env(safe-area-inset-left, 14px));
  bottom: max(16px, env(safe-area-inset-bottom, 16px));
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 2px solid rgba(255, 200, 100, 0.55);
  background: linear-gradient(165deg, rgba(255, 200, 100, 0.12), var(--panel));
  color: #ffc864;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5), 0 0 24px rgba(255, 200, 100, 0.12);
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.rank-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 32px rgba(0,0,0,0.55), 0 0 36px rgba(255, 200, 100, 0.22);
  background: rgba(255, 200, 100, 0.12);
}

.rank-fab:active {
  transform: scale(0.98);
}

.hud-card {
  flex: 1 1 calc(50% - 6px);
  min-width: 100px;
  max-width: 240px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  text-align: center;
}

.hud-label {
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(200,216,240,0.35);
}

.hud-value {
  font-family: 'Orbitron', monospace;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--cyan);
  text-shadow: 0 0 10px var(--cyan-glow);
  transform-origin: center;
}

#hud-phase.hud-phase-bump {
  animation: hudPhaseBump var(--dur-level) var(--ease-spring) both;
}

.hud-value--sm { font-size: 0.95rem; letter-spacing: -0.5px; }

/* ---- DIFFICULTY ---- */
.difficulty {
  display: flex;
  gap: 8px;
  margin: 0 0 12px;
  width: 100%;
  max-width: 500px;
  padding: 0 16px;
  justify-content: center;
}

.diff-btn {
  font-family: 'Orbitron', monospace;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 2px solid var(--border);
  background: var(--panel);
  color: rgba(200,216,240,0.4);
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s, border-color 0.15s, box-shadow 0.2s, filter 0.2s;
  text-transform: uppercase;
}

.diff-btn:not(.active) {
  opacity: 0.42;
  filter: grayscale(0.35);
  color: rgba(200,216,240,0.28);
  border-color: rgba(26,34,54,0.85);
}

.diff-btn:not(.active):hover {
  opacity: 0.65;
  filter: grayscale(0.15);
}

.diff-btn.active {
  opacity: 1;
  filter: none;
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0,255,245,0.12);
  box-shadow: 0 0 20px rgba(0,255,245,0.2);
  transform: scale(1.04);
  z-index: 1;
}

.diff-btn.active:hover {
  border-color: rgba(0,255,245,0.7);
  background: rgba(0,255,245,0.16);
}

/* ---- LAYOUT: coluna central, tabuleiro não estica com a viewport ---- */
.app-shell {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  flex: 1 1 auto;
  min-height: 0;
}

/* ---- BOARD ---- */
.board-wrap {
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 0 40px rgba(0,255,245,0.04), inset 0 0 30px rgba(0,0,0,0.4);
  /* Largura = conteúdo do #board (células + gaps) — fixa p/ nº de colunas */
  width: max-content;
  max-width: 100%;
  box-sizing: border-box;
  transform-origin: center;
}

.board-wrap.board-level-pop {
  will-change: transform, filter, box-shadow;
  animation: boardLevelIn var(--dur-level) var(--ease-out-expo) both;
}

@keyframes boardLevelIn {
  0% {
    transform: scale(0.97);
    filter: brightness(0.7) saturate(0.85);
    box-shadow: 0 0 20px rgba(0,255,245,0.02), inset 0 0 20px rgba(0,0,0,0.5);
  }
  55% {
    transform: scale(1.01);
    filter: brightness(1.12) saturate(1.12);
    box-shadow: 0 0 48px rgba(0,255,245,0.1), inset 0 0 30px rgba(0,0,0,0.4);
  }
  100% {
    transform: scale(1);
    filter: brightness(1) saturate(1);
    box-shadow: 0 0 40px rgba(0,255,245,0.04), inset 0 0 30px rgba(0,0,0,0.4);
  }
}

@keyframes hudPhaseBump {
  0% { transform: scale(0.82); opacity: 0.65; }
  50% { transform: scale(1.08); }
  100% { transform: scale(1); opacity: 1; }
}

#board {
  --grid-cols: 4;
  display: grid;
  grid-template-columns: repeat(var(--grid-cols, 4), var(--board-cell, 60px));
  grid-auto-rows: var(--board-cell, 60px);
  gap: var(--board-gap, 4px);
  width: max-content;
  max-width: 100%;
  margin: 0 auto;
  justify-content: start;
  align-content: start;
}

/* ---- CELLS ---- */
.cell {
  width: var(--board-cell);
  height: var(--board-cell);
  min-width: var(--board-cell);
  min-height: var(--board-cell);
  max-width: var(--board-cell);
  max-height: var(--board-cell);
  aspect-ratio: 1;
  background: var(--cell-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  position: relative;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  overflow: visible;
  contain: layout style;
}

.cell:hover:not(.blocked):not(.fixed-cell) {
  border-color: rgba(0,255,245,0.3);
  background: #0d141f;
}

.cell.powered   { background: var(--cell-on); border-color: rgba(0,255,245,0.2); }
.cell.blocked   { background: var(--blocked); cursor: default; border-color: #0d1020; }
.cell.fixed-cell{ cursor: default; }

/* SVG wires */
.cell svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.wire {
  stroke: #162830;
  stroke-width: 8;
  stroke-linecap: round;
  fill: none;
  transition: stroke 0.2s;
}

.wire.lit {
  stroke: var(--cyan);
  filter: drop-shadow(0 0 3px var(--cyan));
  stroke-dasharray: 6 4;
  animation: flow 0.5s linear infinite;
}

@keyframes flow { to { stroke-dashoffset: -10; } }

@media (prefers-reduced-motion: reduce) {
  .wire.lit { animation: none; stroke-dasharray: none; }
  .cell.spinning svg { animation: none; }
  .cell, .btn, .diff-btn, .ov-btn, .hud-value, .help-fab { transition: none; }
}

.cdot {
  fill: #162830;
  transition: fill 0.2s;
}

.cdot.lit {
  fill: var(--cyan);
  filter: drop-shadow(0 0 6px var(--cyan));
}

/* Source / target overlays */
.cell-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  z-index: 2;
  pointer-events: none;
}

.source-ring {
  position: absolute; inset: 0;
  border-radius: 7px;
  box-shadow: inset 0 0 14px rgba(255,215,0,0.35);
  border: 2px solid rgba(255,215,0,0.5);
  pointer-events: none;
}

.target-ring {
  position: absolute; inset: 0;
  border-radius: 7px;
  box-shadow: inset 0 0 14px rgba(0,255,245,0.1);
  border: 2px solid rgba(0,255,245,0.2);
  pointer-events: none;
  transition: all 0.3s;
}

.target-ring.lit {
  box-shadow: inset 0 0 24px rgba(0,255,245,0.5), 0 0 20px rgba(0,255,245,0.4);
  border-color: var(--cyan);
}

/* Spin animation on rotate */
.cell.spinning svg {
  animation: spin 0.18s ease;
}

@keyframes spin {
  from { transform: rotate(-90deg); }
  to   { transform: rotate(0deg); }
}

/* ---- CONTROLS ---- */
.controls {
  display: flex;
  gap: 10px;
  margin-top: 10px;
  width: 100%;
  max-width: 500px;
  padding: 0 16px;
}

.controls--row {
  flex-wrap: nowrap;
}

.controls--row-secondary {
  margin-top: 6px;
}

.btn {
  flex: 1;
  font-family: 'Orbitron', monospace;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 11px 8px;
  border-radius: 10px;
  border: 2px solid var(--border);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s;
  text-transform: uppercase;
}

.btn:hover,
.btn-cyan,
.btn.cyan {
  border-color: var(--cyan-dim);
  color: var(--cyan);
  background: rgba(0,255,245,0.05);
}

.btn:hover {
  border-color: rgba(0,255,245,0.4);
  background: rgba(0,255,245,0.08);
}

.btn-secondary {
  flex: 1 1 100%;
  font-size: 0.58rem;
  letter-spacing: 0.4px;
  border-color: rgba(200,216,240,0.2);
  color: rgba(200,216,240,0.65);
  background: rgba(0,0,0,0.2);
}

.btn-secondary:hover {
  border-color: rgba(0,255,245,0.35);
  color: var(--cyan);
  background: rgba(0,255,245,0.06);
}

/* ---- APP SHELL (bloqueia UI até auth) ---- */
.app-shell--locked {
  pointer-events: none;
  user-select: none;
  filter: blur(1px) brightness(0.75);
  transition: filter 0.2s, opacity 0.2s;
}

/* ---- MODAIS: base (opacity, não display — permite entrada/saída suave) ---- */
.auth-overlay,
.overlay,
.go-overlay,
.campaign-overlay,
.help-overlay,
.rank-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-modal-back) var(--ease-out-expo);
}

.auth-overlay.show,
.overlay.show,
.go-overlay.show,
.campaign-overlay.show,
.help-overlay.show,
.rank-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.auth-overlay {
  z-index: 300;
  background: rgba(4,6,12,0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 20px;
}

/* Conteúdo do modal: sobe e “assenta” na abertura */
.auth-overlay .auth-box,
.overlay .overlay-box,
.go-overlay .go-box,
.help-overlay .overlay-box,
.rank-overlay .overlay-box {
  transform: translate3d(0, 16px, 0) scale(0.96);
  opacity: 0;
  transition:
    transform var(--dur-modal-box) var(--ease-out-expo),
    opacity 0.28s var(--ease-out-expo);
}

.auth-overlay.show .auth-box,
.overlay.show .overlay-box,
.go-overlay.show .go-box,
.help-overlay.show .overlay-box,
.rank-overlay.show .overlay-box {
  transform: translate3d(0, 0, 0) scale(1);
  opacity: 1;
  transition:
    transform var(--dur-modal-box) var(--ease-out-expo) 0.05s,
    opacity 0.32s var(--ease-out-expo) 0.05s;
}

.auth-box {
  max-width: 360px;
  width: 100%;
  background: linear-gradient(165deg, #0d1117, #080c16);
  border: 2px solid rgba(0,255,245,0.25);
  border-radius: 20px;
  padding: 28px 24px 26px;
  text-align: center;
  box-shadow: 0 0 50px rgba(0,255,245,0.12);
}

.auth-box--local {
  border-color: rgba(200, 180, 120, 0.35);
  box-shadow: 0 0 40px rgba(200, 180, 100, 0.08);
}

.auth-title {
  font-family: 'Orbitron', monospace;
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--cyan);
  letter-spacing: 2px;
  margin-bottom: 10px;
}

.auth-desc {
  font-size: 0.8rem;
  color: rgba(200,216,240,0.5);
  line-height: 1.5;
  margin-bottom: 18px;
}

.auth-label {
  display: block;
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(200,216,240,0.4);
  margin-bottom: 6px;
  text-align: left;
}

.auth-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 2px solid var(--border);
  background: var(--cell-bg);
  color: var(--text);
  font-family: 'Nunito', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  outline: none;
}

.auth-input:focus {
  border-color: var(--cyan-dim);
}

.auth-submit {
  width: 100%;
  font-family: 'Orbitron', monospace;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 2px;
  padding: 14px 20px;
  border-radius: 10px;
  border: 2px solid var(--cyan);
  background: rgba(0,255,245,0.1);
  color: var(--cyan);
  cursor: pointer;
  text-transform: uppercase;
}

.auth-submit:hover {
  background: rgba(0,255,245,0.2);
}

/* Win + campanha: camadas e fundo (layout base = bloco .overlay no topo deste ficheiro) */
.overlay {
  background: rgba(6,8,16,0.92);
  z-index: 200;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  overflow-y: auto;
  padding: 16px;
}

#overlay.show {
  cursor: pointer;
}

#overlay.show .overlay-box {
  cursor: default;
}

#campaign-overlay.show {
  cursor: pointer;
}

#campaign-overlay.show .overlay-box {
  cursor: default;
}

.help-overlay,
.rank-overlay {
  z-index: 195;
  background: rgba(6,8,16,0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow-y: auto;
  padding: 16px;
}

.rank-overlay {
  z-index: 288;
}

#help-overlay.show {
  cursor: pointer;
}

#help-overlay.show .help-box {
  cursor: default;
}

#rank-overlay.show {
  cursor: pointer;
}

#rank-overlay.show .overlay-box--rank {
  cursor: default;
}

.help-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.35);
  color: rgba(200,216,240,0.55);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  font-family: inherit;
  padding: 0;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.help-close:hover {
  color: var(--cyan);
  border-color: rgba(0,255,245,0.35);
  background: rgba(0,255,245,0.08);
}

.help-title {
  font-family: 'Orbitron', monospace;
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 14px;
  padding-right: 8px;
}

.help-body {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.help-p {
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.55;
  color: rgba(200,216,240,0.88);
  margin: 0 0 12px;
}

.help-p:last-child {
  margin-bottom: 0;
}

.help-p strong {
  color: rgba(235,245,255,0.98);
  font-weight: 800;
}

.overlay-box {
  background: linear-gradient(160deg, #0d1117, #060810);
  border: 2px solid rgba(0,255,245,0.3);
  border-radius: 24px;
  padding: 36px 40px;
  text-align: center;
  box-shadow: 0 0 60px rgba(0,255,245,0.15), 0 24px 48px rgba(0,0,0,0.8);
  max-width: 320px;
  width: 90%;
}

.overlay-box.help-box {
  position: relative;
  max-width: 420px;
  width: 100%;
  padding: 26px 44px 22px 22px;
  text-align: left;
}

.overlay-box--win {
  max-width: 420px;
  text-align: left;
  padding: 28px 22px 24px;
  display: flex;
  flex-direction: column;
  max-height: min(92dvh, 720px);
}

.overlay-box--win > .ov-icon,
.overlay-box--win > .ov-title,
.overlay-box--win > .ov-stats,
.overlay-box--win > .ov-msg {
  text-align: center;
  display: block;
}

.ov-icon {
  font-size: 3.5rem;
  display: block;
  margin-bottom: 10px;
}

.ov-title {
  font-family: 'Orbitron', monospace;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--cyan);
  text-shadow: 0 0 20px var(--cyan-glow);
  margin-bottom: 8px;
  letter-spacing: 2px;
}

.ov-stats {
  font-family: 'Orbitron', monospace;
  font-size: 0.85rem;
  color: rgba(0,255,245,0.6);
  margin-bottom: 6px;
}

.ov-msg {
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(200,216,240,0.5);
  margin-bottom: 12px;
  line-height: 1.6;
  text-align: center;
}

.ov-rankings {
  min-height: 0;
  flex: 1 1 auto;
  max-height: min(50vh, 360px);
  display: flex;
  flex-direction: column;
  margin: 0 0 16px;
  padding: 0 0 4px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  font-size: 0.72rem;
  color: rgba(200,216,240,0.7);
  text-align: left;
}

/* Abas de ranking: scroll no painel ativo */
.rank-tabs-inner {
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1 1 auto;
  max-height: min(50vh, 360px);
}

.rank-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
  flex-shrink: 0;
  justify-content: center;
}

.rank-tab {
  font-family: 'Orbitron', monospace;
  font-size: 0.5rem;
  font-weight: 800;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  padding: 8px 10px;
  border-radius: 10px;
  border: 2px solid var(--border);
  background: rgba(0,0,0,0.2);
  color: rgba(200,216,240,0.4);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s, box-shadow 0.2s;
}

.rank-tab[aria-selected="true"] {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0,255,245,0.1);
  box-shadow: 0 0 16px rgba(0,255,245,0.12);
}

.rank-panels {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  padding: 8px 2px 4px;
  border-radius: 10px;
  background: rgba(0,0,0,0.18);
}

.rank-panel[hidden] {
  display: none !important;
}

.ov-diff-tag {
  display: inline-block;
  min-width: 0.9rem;
  text-align: center;
  font-size: 0.58rem;
  font-weight: 900;
  color: rgba(0,255,245,0.5);
  margin-right: 2px;
}

.overlay-box--win .ov-rankings {
  min-height: 8rem;
}

.overlay-box--rank {
  position: relative;
  max-width: 420px;
  width: 100%;
  text-align: left;
  max-height: min(88dvh, 640px);
  display: flex;
  flex-direction: column;
  padding: 24px 18px 20px;
}

.rank-overlay-title {
  font-family: 'Orbitron', monospace;
  font-size: 1rem;
  font-weight: 900;
  color: var(--cyan);
  letter-spacing: 2px;
  text-align: center;
  margin: 0 0 8px 32px;
}

.rank-standalone-mount {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.rank-standalone-mount .rank-tabs-inner {
  max-height: min(70vh, 480px);
}

.ov-rank-title {
  font-family: 'Orbitron', monospace;
  font-size: 0.58rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(0,255,245,0.5);
  margin-bottom: 8px;
  text-align: center;
}

.ov-rank-row {
  display: grid;
  grid-template-columns: 1.2rem 1fr auto auto;
  gap: 6px 8px;
  align-items: center;
  padding: 4px 0;
  border-bottom: 1px solid rgba(26,34,54,0.5);
}

.ov-rank-row:last-of-type { border-bottom: 0; }

.ov-rk { color: var(--cyan); font-weight: 800; }
.ov-rn { font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ov-rc { text-align: right; color: rgba(200,216,240,0.5); }
.ov-rd { font-size: 0.62rem; color: rgba(200,216,240,0.28); }

.ov-rsub {
  font-size: 0.7em;
  color: rgba(200,216,240,0.4);
  font-weight: 600;
}

/* Série completa: por cima do win só quando visível. Fechada, fica *abaixo* de #overlay
   — senão a camada invisível (z 220) rouba cliques de “Próxima fase” em browsers que falham
   a propagação com pointer-events no stacking context. */
.campaign-overlay:not(.show) {
  z-index: 199;
}

.campaign-overlay.show {
  z-index: 220;
}

.campaign-overlay .overlay-box--campaign {
  transform-origin: 50% 35%;
}

.campaign-overlay.show .overlay-box--campaign {
  transition:
    transform 0.45s var(--ease-spring) 0.06s,
    opacity 0.35s var(--ease-spring) 0.06s;
}

.overlay-box--campaign {
  max-width: 420px;
  text-align: left;
  padding: 28px 22px 24px;
  display: flex;
  flex-direction: column;
  max-height: min(92dvh, 760px);
}

.overlay-box--campaign .ov-icon,
.overlay-box--campaign .ov-title {
  text-align: center;
  display: block;
}

.camp-lead {
  font-size: 0.95rem;
  font-weight: 700;
  color: rgba(200,216,240,0.88);
  margin: 0 0 10px;
  line-height: 1.5;
  text-align: center;
}

.camp-lead-sub {
  font-weight: 600;
  font-size: 0.8em;
  color: rgba(200,216,240,0.45);
}

.camp-breakdown {
  list-style: none;
  margin: 0 0 14px;
  padding: 10px 12px;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.8rem;
  line-height: 1.7;
  color: rgba(200,216,240,0.75);
}

.camp-lab {
  display: inline-block;
  min-width: 3.2rem;
  color: rgba(0,255,245,0.45);
  font-weight: 800;
  font-size: 0.65rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.camp-rankings {
  flex: 1 1 auto;
  min-height: 0;
}

.ov-rank-note {
  text-align: center;
  font-size: 0.8rem;
  color: rgba(200,216,240,0.4);
  padding: 8px 0 4px;
  margin: 0;
}

.ov-dismiss-hint {
  font-size: 0.65rem;
  font-weight: 600;
  color: rgba(200,216,240,0.35);
  margin: 0 0 10px;
  line-height: 1.4;
  text-align: center;
}

.ov-dismiss-hint kbd {
  display: inline-block;
  font-family: inherit;
  font-size: 0.6rem;
  font-weight: 800;
  padding: 1px 5px;
  border: 1px solid rgba(0,255,245,0.25);
  border-radius: 4px;
  background: rgba(0,0,0,0.35);
  color: rgba(0,255,245,0.5);
}

.ov-btn {
  display: block;
  width: 100%;
  font-family: 'Orbitron', monospace;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 13px 28px;
  background: rgba(0,255,245,0.08);
  color: var(--cyan);
  border: 2px solid var(--cyan);
  border-radius: 10px;
  cursor: pointer;
  text-transform: uppercase;
  box-shadow: 0 0 20px rgba(0,255,245,0.15);
  transition: all 0.15s;
  text-align: center;
}

.ov-btn:hover {
  background: rgba(0,255,245,0.18);
  box-shadow: 0 0 30px rgba(0,255,245,0.35);
}

/* ---- RESPONSIVE ---- */
/* ---- TOAST (falha de fase) ---- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%) translateY(20px);
  max-width: min(92vw, 400px);
  padding: 12px 18px;
  background: #121a2a;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.4;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  z-index: 400;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}

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

/* ---- GAME OVER ---- */
.go-overlay {
  z-index: 250;
  background: rgba(4,4,8,0.9);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  padding: 20px;
}

.go-box {
  max-width: 340px;
  text-align: center;
  background: linear-gradient(165deg, #1a0a12, #0a0608);
  border: 2px solid rgba(255,64,100,0.4);
  border-radius: 20px;
  padding: 32px 28px;
  box-shadow: 0 0 50px rgba(255,64,100,0.12);
}

.go-icon { font-size: 3.2rem; margin-bottom: 6px; }

.go-title {
  font-family: 'Orbitron', monospace;
  font-size: 1.35rem;
  font-weight: 900;
  color: #ff6b8a;
  letter-spacing: 3px;
  margin-bottom: 10px;
}

.go-text {
  font-size: 0.9rem;
  color: rgba(200,216,240,0.6);
  margin-bottom: 22px;
  line-height: 1.5;
}

.go-btn {
  width: 100%;
  font-family: 'Orbitron', monospace;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 14px 20px;
  border-radius: 10px;
  border: 2px solid #ff4d6d;
  background: rgba(255,80,100,0.12);
  color: #ff8fa3;
  cursor: pointer;
  text-transform: uppercase;
}

.go-btn:hover { background: rgba(255,80,100,0.22); }

/* Telas estreitas: célula menor */
@media (max-width: 400px) {
  :root { --board-cell: 52px; }
}
@media (max-width: 340px) {
  :root { --board-cell: 44px; }
}

/* Tablet: mais respiro entre blocos */
@media (min-width: 641px) and (max-width: 1024px) {
  .hud {
    gap: 12px;
    padding: 0 18px 12px;
  }

  .phase-track {
    padding: 10px 18px 18px;
  }

  .difficulty {
    margin: 8px 0 20px;
    gap: 12px;
  }

  .board-wrap {
    padding: 12px 18px 18px;
  }

  .controls {
    margin-top: 16px;
    padding-bottom: 14px;
  }
}

/* Mobile: caber no máximo ~100vh (scroll suave só dentro do jogo se faltar espaço) */
@media (max-width: 640px) {
  html,
  body {
    height: 100%;
    max-height: 100dvh;
    max-height: 100svh;
  }

  body {
    overflow: hidden;
    padding-bottom: max(6px, env(safe-area-inset-bottom, 0px));
  }

  .app-shell {
    flex: 1 1 auto;
    width: 100%;
    max-height: 100dvh;
    max-height: 100svh;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
  }

  header {
    padding: 6px 14px 4px;
    flex-shrink: 0;
  }

  .title {
    font-size: clamp(0.95rem, 4.2vw, 1.45rem);
    letter-spacing: 2px;
  }

  .hud {
    gap: 10px;
    padding: 0 12px 10px;
    flex-shrink: 0;
  }

  .hud-card {
    padding: 8px 10px;
  }

  .phase-track {
    padding: 8px 12px 14px;
    flex-shrink: 0;
  }

  .phase-step {
    min-width: 2.75rem;
    padding: 6px 8px;
  }

  .phase-step--current {
    transform: scale(1.04);
  }

  .help-fab {
    width: 46px;
    height: 46px;
    font-size: 1.2rem;
  }

  .help-p {
    font-size: 0.75rem;
  }

  .difficulty {
    margin: 6px 0 16px;
    flex-shrink: 0;
    gap: 10px;
  }

  .diff-btn {
    font-size: 0.48rem;
    padding: 7px 5px;
  }

  .board-wrap {
    flex-shrink: 0;
    padding: 10px 12px 12px;
  }

  .controls {
    flex-shrink: 0;
    margin-top: 12px;
    padding-bottom: 10px;
  }

  .rank-fab {
    width: 46px;
    height: 46px;
    font-size: 1.1rem;
  }

  /* Tabuleiro limitado pela altura útil da viewport */
  :root {
    --board-cell: min(11.2vw, calc((100svh - 260px) / 5.5));
  }
}

@media (max-width: 640px) and (max-height: 680px) {
  :root {
    --board-cell: min(10vw, calc((100svh - 220px) / 6));
  }
}

/* Acessibilidade: menos movimento (modais e troca de fase) */
@media (prefers-reduced-motion: reduce) {
  :root {
    --dur-modal-back: 0.14s;
    --dur-modal-box: 0.14s;
    --dur-level: 0.12s;
  }

  .board-wrap.board-level-pop {
    animation: none;
    will-change: auto;
    filter: none;
  }

  #hud-phase.hud-phase-bump {
    animation: none;
  }

  .auth-overlay .auth-box,
  .overlay .overlay-box,
  .go-overlay .go-box,
  .help-overlay .overlay-box,
  .rank-overlay .overlay-box {
    transform: none;
    transition: opacity var(--dur-modal-back) ease;
  }

  .auth-overlay.show .auth-box,
  .overlay.show .overlay-box,
  .go-overlay.show .go-box,
  .help-overlay.show .overlay-box,
  .rank-overlay.show .overlay-box,
  .campaign-overlay.show .overlay-box--campaign {
    transform: none;
    transition: opacity var(--dur-modal-back) ease;
  }

  .phase-step--current {
    transform: none;
  }
}