* {
  box-sizing: border-box;
  user-select: none;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(180deg, #5b7be0, #3447a8);
  color: #fff;
}

/* Tela */
#gameScreen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0 24px;
}

/* Topo */
.top-bar {
  width: 92%;
  max-width: 360px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
  opacity: 0.9;
}

button {
  background: rgba(255,255,255,0.2);
  border: none;
  color: #fff;
  font-size: 18px;
  padding: 6px 12px;
  border-radius: 10px;
  cursor: pointer;
}

/* Grid */
#grid {
  width: 92vw;
  max-width: 360px;
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  grid-template-rows: repeat(10, 1fr);
  gap: 2px;
  padding: 8px;
  background: rgba(0,0,0,0.3);
  border-radius: 18px;
  box-shadow: 0 18px 40px rgba(0,0,0,0.45);
}

.cell {
  background: rgba(255,255,255,0.07);
  border-radius: 4px;
}

.cell.filled {
  background: #ff9800;
  box-shadow: inset 0 0 6px rgba(255,255,255,0.4);
}

/* Peças */
#pieces {
  display: flex;
  gap: 20px;
}

.piece {
  display: grid;
  gap: 2px;
  padding: 12px;
  background: rgba(255,255,255,0.2);
  border-radius: 16px;
  cursor: grab;
}

.block {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  background: #ff9800;
}

/* =======================
   CORES DAS PEÇAS
======================= */
.block {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  box-shadow:
    inset 0 1px 2px rgba(255,255,255,0.35),
    inset 0 -2px 3px rgba(0,0,0,0.25);
}

/* =======================
   PREVIEW 3D (SOMBRA)
======================= */
.preview {
  background: rgba(255,255,255,0.25) !important;
  box-shadow:
    inset 0 0 6px rgba(255,255,255,0.6),
    0 6px 14px rgba(0,0,0,0.4);
  border-radius: 4px;
}

/* =======================
   COMBO VISUAL
======================= */
#combo {
  font-size: 14px;
  opacity: 0.85;
  margin-left: 6px;
}

/* Raridades */
.piece.rare {
  box-shadow: 0 0 12px rgba(156,39,176,0.9);
}

.piece.legendary {
  box-shadow: 0 0 18px gold;
  animation: pulse 1.2s infinite;
}

/* Tema Neon */
body.neon {
  background: radial-gradient(circle at top, #00e5ff, #000);
}

body.neon .cell {
  background: rgba(0,255,255,0.15);
}

/* ========================
   TELA DE INÍCIO
======================== */
#startScreen {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  gap: 18px;
  background: linear-gradient(180deg, #243abf, #1a255f);
}

#startScreen h1 {
  font-size: 48px;
  letter-spacing: 4px;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

#startScreen button {
  width: 200px;
  font-size: 20px;
  padding: 12px;
  border-radius: 10px;
  background: rgba(255,255,255,0.2);
  color: #fff;
}

.hidden { display: none !important; }
.piece { touch-action: none; }

.icon-btn {
  background: rgba(255,255,255,0.2);
  border: none;
  font-size: 20px;
  padding: 8px 12px;
  border-radius: 12px;
  cursor: pointer;
}

.score-center {
  text-align: center;
  font-size: 22px;
}

.score-center small {
  font-size: 14px;
  opacity: 0.8;
}

/* MENU */
.menu {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
}

.menu.hidden {
  display: none;
}

.menu > div {
  background: #111;
  padding: 24px;
  border-radius: 20px;
  width: 90%;
  max-width: 320px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0,0,0,0.6);
}

.menu button {
  width: 200px;
}

.menu .close {
  margin-top: 20px;
  background: #ff5252;
}

/* TEMA DARK */
body.dark {
  background: #000;
}

body.dark .cell {
  background: rgba(255,255,255,0.1);
}

@keyframes trophyPulse {
  0% { transform: scale(1); box-shadow: 0 0 0 gold; }
  50% { transform: scale(1.3); box-shadow: 0 0 20px gold; }
  100% { transform: scale(1); box-shadow: 0 0 0 gold; }
}

.icon-btn.record {
  animation: trophyPulse 0.8s ease;
}

@keyframes clearFlash {
  0% {
    background: #fff;
    transform: scale(1);
  }
  50% {
    background: #ffeb3b;
    transform: scale(1.15);
  }
  100% {
    background: transparent;
    transform: scale(1);
  }
}

.cell.clearing {
  animation: clearFlash 0.35s ease;
}

.settings {
  position: fixed;
  top: 12px;
  right: 12px;
  font-size: 22px;
  z-index: 100;
}

.floating-score {
  position: fixed;
  font-size: 24px;
  font-weight: bold;
  color: #ffd700;
  pointer-events: none;
  transform: translateX(-50%);
  animation: floatUp .9s ease-out forwards;
  text-shadow: 0 0 12px rgba(255,215,0,.8);
}

@keyframes floatUp {
  from { opacity:1; transform:translate(-50%,0) scale(1); }
  to   { opacity:0; transform:translate(-50%,-60px) scale(1.4); }
}

/* ======================
   HUD EXTRA
====================== */
.hud-extra {
  width: 100%;
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

/* TIMER */
#timer {
  font-size: 16px;
  font-weight: bold;
  letter-spacing: 1px;
}

#timer.danger {
  color: #ff5252;
  animation: pulse 0.8s infinite;
}

/* PROGRESSO */
.progress-container {
  width: 100%;
  height: 8px;
  background: rgba(255,255,255,0.2);
  border-radius: 6px;
  overflow: hidden;
}

#progressBar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #4caf50, #ffeb3b);
  border-radius: 6px;
  transition: width 0.3s ease;
}

@keyframes pulse {
  0% { opacity: 1; }
  50% { opacity: .4; }
  100% { opacity: 1; }
}

/* ========================
   TELA DE VITÓRIA
======================== */
.victory {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at top, #1a237e, #000);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  overflow: hidden;
}

.victory.hidden {
  display: none;
}

.victory-card {
  background: rgba(0,0,0,0.75);
  border-radius: 24px;
  padding: 40px 32px;
  text-align: center;
  box-shadow: 0 30px 80px rgba(0,0,0,0.8);
  animation: popIn 0.6s ease;
}

.victory h1 {
  font-size: 42px;
  margin: 12px 0;
  letter-spacing: 4px;
  text-shadow: 0 0 18px gold;
}

.victory-score {
  font-size: 22px;
  margin-top: 10px;
}

.victory-meta {
  font-size: 16px;
  opacity: 0.85;
  margin-bottom: 20px;
}

.victory button {
  font-size: 18px;
  padding: 10px 22px;
  border-radius: 14px;
  background: linear-gradient(135deg, gold, orange);
  color: #000;
  font-weight: bold;
}

/* 🏆 TROFÉU */
.trophy {
  font-size: 80px;
  animation: trophyFloat 1.6s ease-in-out infinite;
  text-shadow: 0 0 25px gold;
}

/* 🎉 CONFETES */
.confetti::before,
.confetti::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, gold 2px, transparent 3px),
    radial-gradient(circle, #ff5252 2px, transparent 3px),
    radial-gradient(circle, #03a9f4 2px, transparent 3px);
  background-size: 40px 40px;
  animation: confettiFall 6s linear infinite;
  opacity: 0.6;
}

/* ========================
   ANIMAÇÕES
======================== */
@keyframes popIn {
  from { transform: scale(0.4); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

@keyframes trophyFloat {
  0%   { transform: translateY(0) scale(1); }
  50%  { transform: translateY(-12px) scale(1.1); }
  100% { transform: translateY(0) scale(1); }
}

@keyframes confettiFall {
  from { background-position-y: -200px; }
  to   { background-position-y: 800px; }
}

.game-footer {
  text-align: center;
  font-size: 12px;
  opacity: 0.75;
  padding: 12px 0;
}

.game-footer a {
  color: #ffd700;
  text-decoration: none;
  font-weight: 600;
}

.game-footer a:hover {
  text-decoration: underline;
}

.game-footer .credits {
  margin-top: 4px;
  opacity: 0.6;
}