:root {
  --bg:        #0f1117;
  --surface:   #161b25;
  --border:    #252d3d;
  --border2:   #1e2739;
  --accent:    #4f8ef7;   
  --green:     #34d399;   
  --red:       #f87171;  
  --yellow:    #fbbf24;   
  --orange:    #fb923c;   
  --text:      #c9d1e0;
  --text-dim:  #4a5568;
  --text-muted:#6b7280;
  --mono:      'JetBrains Mono', monospace;
  --sans:      'Syne', sans-serif;
  --radius:    8px;
  --shadow:    0 4px 24px rgba(0,0,0,0.4);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  width: 100%; min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  overflow-x: hidden;
}

/* ── Grade de fundo (sutil) ── */
body::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(rgba(79,142,247,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,142,247,.025) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* ════════════════════════════════════════════════
   TELAS
════════════════════════════════════════════════ */
.tela {
  display: none;
  position: fixed; inset: 0;
  z-index: 10;
  align-items: center; justify-content: center;
  overflow-y: auto;
}
.tela.ativa { display: flex; }

/* ════════════════════════════════════════════════
   TELA INÍCIO
════════════════════════════════════════════════ */
#tela-inicio {
  background: var(--bg);
}

.inicio-inner {
  width: 100%; max-width: 460px;
  padding: 32px 24px;
  display: flex; flex-direction: column; gap: 36px;
  align-items: center;
}

.logo { text-align: center; }

.logo-dev {
  font-family: var(--sans);
  font-size: clamp(2.8rem, 8vw, 4.2rem);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -2px;
}

.logo-duel {
  font-family: var(--sans);
  font-size: clamp(2.8rem, 8vw, 4.2rem);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -2px;
}

.logo-sub {
  font-family: var(--mono);
  font-size: .75rem;
  color: var(--text-dim);
  margin-top: 6px;
  letter-spacing: .05em;
}


.painel-form {
  width: 100%;
  display: flex; flex-direction: column; gap: 20px;
}

.campo { display: flex; flex-direction: column; gap: 8px; }

.campo label {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.campo input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--mono);
  font-size: .95rem;
  padding: 11px 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  width: 100%;
}

.campo input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,142,247,.12);
}


.modo-toggle { display: flex; gap: 8px; }

.btn-modo {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  cursor: pointer;
  padding: 12px 10px;
  display: flex; flex-direction: column; align-items: flex-start; gap: 3px;
  text-align: left;
  transition: border-color .2s, color .2s, background .2s;
}

.btn-modo.ativo {
  border-color: var(--accent);
  background: rgba(79,142,247,.08);
  color: var(--text);
}

.btn-modo:hover:not(.ativo) { border-color: var(--border2); }

.modo-titulo {
  font-family: var(--sans);
  font-size: .9rem;
  font-weight: 700;
}

.modo-desc {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--text-dim);
  line-height: 1.4;
}


.tag-techs { display: flex; flex-wrap: wrap; gap: 6px; }

.tag {
  font-family: var(--mono);
  font-size: .7rem;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim);
}

.btn-jogar {
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  cursor: pointer;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 700;
  padding: 14px;
  width: 100%;
  transition: background .2s, transform .15s, box-shadow .2s;
  letter-spacing: .02em;
}

.btn-jogar:hover {
  background: #6a9ffa;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(79,142,247,.3);
}

.btn-jogar:active { transform: translateY(0); }

/* ════════════════════════════════════════════════
   CONTAGEM
════════════════════════════════════════════════ */
#tela-contagem {
  background: rgba(15,17,23,.97);
  flex-direction: column; gap: 12px;
  z-index: 90;
}

#num-contagem {
  font-family: var(--sans);
  font-size: clamp(5rem, 20vw, 10rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  animation: popIn .7s ease-out;
}

#txt-contagem {
  font-family: var(--mono);
  font-size: .85rem;
  color: var(--text-dim);
  letter-spacing: .2em;
  text-transform: uppercase;
}

@keyframes popIn {
  from { transform: scale(1.6); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

/* ════════════════════════════════════════════════
   ARENA
════════════════════════════════════════════════ */
#tela-jogo {
  position: fixed; inset: 0;
  flex-direction: column;
  align-items: center;
  overflow-y: auto;
  padding: 16px 16px 80px;
  gap: 12px;
  z-index: 10;
}


.hud {
  width: 100%; max-width: 820px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  align-items: center;
}

.hud-lado { display: flex; flex-direction: column; gap: 5px; }

.hud-nome {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.ia-nome { text-align: right; }

.hud-barra-wrap {
  background: var(--border2);
  border-radius: 4px;
  height: 10px;
  overflow: hidden;
}

.hud-barra {
  height: 100%;
  border-radius: 4px;
  transition: width .5s cubic-bezier(.4,0,.2,1);
}

.jog-barra { background: var(--green); }
.ia-barra  { background: var(--red); margin-left: auto; }

.hud-info {
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: .7rem; color: var(--text-dim);
}

.hud-info-right { justify-content: flex-end; gap: 12px; }

.combo-tag {
  color: var(--yellow);
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .05em;
  opacity: 0;
  transition: opacity .3s;
}

.combo-tag.vis { opacity: 1; }


.hud-centro {
  display: flex; flex-direction: column;
  align-items: center; gap: 4px;
  min-width: 80px;
}

.round-label {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--text-dim);
  letter-spacing: .1em;
}

.cronometro {
  position: relative; width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
}

.cronometro svg { position: absolute; inset: 0; }

#circ-tempo {
  stroke: var(--accent);
  transition: stroke-dashoffset 1s linear, stroke .3s;
}

.cronometro span {
  font-family: var(--sans);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  position: relative; z-index: 1;
}


.badge-dif {
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .1em;
  padding: 2px 8px;
  border-radius: 3px;
  border: 1px solid var(--green);
  color: var(--green);
}

.badge-dif.medio   { color: var(--yellow); border-color: var(--yellow); }
.badge-dif.dificil { color: var(--orange); border-color: var(--orange); }
.badge-dif.expert  { color: var(--red);    border-color: var(--red); }


.painel-pergunta {
  width: 100%; max-width: 820px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  display: flex; flex-direction: column; gap: 16px;
  box-shadow: var(--shadow);
}

.pergunta-texto {
  font-family: var(--sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: #dde4f0;
  line-height: 1.5;
}


.bloco-codigo {
  background: #0a0d13;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 16px;
  overflow-x: auto;
  position: relative;
}

.bloco-codigo::after {
  content: attr(data-lang);
  position: absolute; top: 8px; right: 10px;
  font-family: var(--mono); font-size: .6rem;
  color: var(--text-dim); letter-spacing: .1em;
}

pre {
  font-family: var(--mono);
  font-size: .85rem;
  color: #7fa8c8;
  line-height: 1.65;
  white-space: pre;
  margin: 0;
}


.kw    { color: #c792ea; }
.str   { color: #98c379; }
.num   { color: #e5c07b; }
.cm    { color: #4a5568; font-style: italic; }
.blank { color: var(--accent); font-weight: 700; animation: piscarBlank 1s step-end infinite; }

@keyframes piscarBlank {
  0%, 100% { opacity: 1; } 50% { opacity: .25; }
}


.grade-opcoes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.btn-opcao {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  cursor: pointer;
  font-family: var(--sans);
  font-size: .95rem;
  font-weight: 600;
  padding: 12px 14px;
  text-align: left;
  transition: border-color .15s, background .15s, transform .1s;
  display: flex; align-items: center; gap: 10px;
}

.btn-opcao:hover:not(:disabled) {
  border-color: var(--accent);
  background: rgba(79,142,247,.07);
  transform: translateY(-1px);
}

.btn-opcao:active:not(:disabled) { transform: translateY(0); }

.btn-opcao .letra {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--text-dim);
  min-width: 16px;
  flex-shrink: 0;
}

.btn-opcao .texto { line-height: 1.3; }

.btn-opcao.correta  { border-color: var(--green) !important; background: rgba(52,211,153,.1) !important; color: var(--green) !important; }
.btn-opcao.errada   { border-color: var(--red)   !important; background: rgba(248,113,113,.1) !important; color: var(--red)   !important; }
.btn-opcao.revelada { border-color: var(--green) !important; background: rgba(52,211,153,.06) !important; color: var(--green) !important; opacity: .75; }
.btn-opcao:disabled { cursor: not-allowed; }


.log-box {
  width: 100%; max-width: 820px;
  background: rgba(0,0,0,.25);
  border: 1px solid var(--border2);
  border-radius: 7px;
  padding: 10px 14px;
  font-family: var(--mono);
  font-size: .73rem;
  line-height: 1.9;
  min-height: 48px;
  max-height: 100px;
  overflow-y: auto;
}

.log-linha { animation: fadeIn .25s ease-out; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateX(-6px); }
  to   { opacity: 1; transform: translateX(0); }
}

.log-verde   { color: var(--green); }
.log-vermelho{ color: var(--red); }
.log-azul    { color: var(--accent); }
.log-amarelo { color: var(--yellow); }
.log-laranja { color: var(--orange); }


.ia-status {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--text-dim);
  min-height: 18px;
  text-align: center;
}

/* ════════════════════════════════════════════════
   atordoamento
════════════════════════════════════════════════ */
#overlay-stun {
  position: fixed; inset: 0;
  background: rgba(10,5,5,.92);
  display: none; align-items: center; justify-content: center;
  z-index: 80;
}

.stun-box {
  display: flex; flex-direction: column;
  align-items: center; gap: 8px;
}

.stun-emoji {
  font-size: 3.5rem;
  animation: pulsarStun .5s ease-in-out infinite alternate;
}

@keyframes pulsarStun {
  from { transform: scale(1) rotate(-5deg); }
  to   { transform: scale(1.15) rotate(5deg); }
}

.stun-titulo {
  font-family: var(--sans);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--red);
}

.stun-contador {
  font-family: var(--mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text);
}

/* ════════════════════════════════════════════════
   EXPLICAÇÃO
════════════════════════════════════════════════ */
#overlay-expl {
  position: fixed; inset: 0;
  background: rgba(15,17,23,.9);
  display: none; align-items: center; justify-content: center;
  z-index: 75; padding: 20px;
}

.expl-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  max-width: 580px; width: 100%;
  display: flex; flex-direction: column; gap: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,.6);
  animation: slideUp .3s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(14px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.expl-label {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--green);
}

.expl-resposta {
  font-family: var(--mono);
  font-size: 1.2rem;
  color: var(--green);
  padding: 10px 14px;
  background: rgba(52,211,153,.07);
  border-left: 3px solid var(--green);
  border-radius: 4px;
}

.expl-dica {
  font-family: var(--sans);
  font-size: .95rem;
  font-weight: 400;
  color: var(--text);
  line-height: 1.65;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.expl-footer {
  display: flex; align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.expl-progress {
  flex: 1;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.expl-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  width: 0%;
  transition: width linear;
}

.btn-proximo {
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent);
  cursor: pointer;
  font-family: var(--sans);
  font-size: .85rem;
  font-weight: 700;
  padding: 8px 18px;
  transition: background .2s, color .2s;
  white-space: nowrap;
}

.btn-proximo:hover { background: var(--accent); color: #fff; }

/* ════════════════════════════════════════════════
   CRITICAL
════════════════════════════════════════════════ */
#efeito-critico {
  position: fixed; inset: 0;
  display: none; align-items: center; justify-content: center;
  z-index: 95; pointer-events: none;
  font-family: var(--sans);
  font-size: clamp(3rem, 10vw, 6rem);
  font-weight: 800;
  color: var(--yellow);
  text-shadow: 0 0 30px rgba(251,191,36,.6);
  animation: nenhuma 0s;
}

.critico-anim {
  animation: explodir .9s ease-out forwards !important;
}

@keyframes explodir {
  0%   { transform: scale(.4); opacity: 0; }
  30%  { transform: scale(1.3); opacity: 1; }
  70%  { transform: scale(1);   opacity: 1; }
  100% { transform: scale(.8);  opacity: 0; }
}

/* ════════════════════════════════════════════════
   RESULTADO
════════════════════════════════════════════════ */
#tela-resultado { background: var(--bg); }

.resultado-inner {
  width: 100%; max-width: 480px;
  padding: 32px 24px;
  display: flex; flex-direction: column;
  gap: 28px; align-items: center;
}

.resultado-titulo {
  font-family: var(--sans);
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 800;
  letter-spacing: -1px;
  animation: popIn .5s ease-out;
}

.resultado-titulo.vitoria { color: var(--green); }
.resultado-titulo.derrota { color: var(--red); }
.resultado-titulo.empate  { color: var(--yellow); }


.placar-vs {
  display: flex; gap: 24px; align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px 28px;
  width: 100%;
}

.placar-lado {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}

.placar-nome {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.placar-hp {
  font-family: var(--sans);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text);
}

.placar-sub {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--text-dim);
}

.vs-sep {
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--border);
  letter-spacing: .1em;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: 100%;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  display: flex; flex-direction: column;
  align-items: center; gap: 4px;
  text-align: center;
}

.stat-val {
  font-family: var(--sans);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
}

.stat-lbl {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--text-dim);
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* ════════════════════════════════════════════════
   DANO FLUTUANTE
════════════════════════════════════════════════ */
.dano-float {
  position: fixed;
  font-family: var(--sans);
  font-size: 1.6rem;
  font-weight: 800;
  pointer-events: none;
  z-index: 999;
  animation: subirDano 1s ease-out forwards;
}

.dano-float.jog  { color: var(--green); }
.dano-float.ia   { color: var(--red); }
.dano-float.crit { color: var(--yellow); font-size: 2rem; }

@keyframes subirDano {
  0%   { opacity: 1; transform: translateY(0) scale(1); }
  20%  { transform: translateY(-16px) scale(1.15); }
  100% { opacity: 0; transform: translateY(-70px) scale(.8); }
}

/* ════════════════════════════════════════════════
   FLASH DE TELA
════════════════════════════════════════════════ */
.flash-verde { animation: fverde .35s ease-out; }
.shake       { animation: shake .45s ease-out; }

@keyframes fverde {
  0%, 100% { box-shadow: none; }
  40%      { box-shadow: inset 0 0 60px rgba(52,211,153,.3); }
}

@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%     { transform: translateX(-7px); }
  40%     { transform: translateX(7px); }
  60%     { transform: translateX(-4px); }
  80%     { transform: translateX(4px); }
}

/* ════════════════════════════════════════════════
   SCROLLBAR
════════════════════════════════════════════════ */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* ════════════════════════════════════════════════
   RESPONSIVIDADE
════════════════════════════════════════════════ */
@media (max-width: 600px) {
  .grade-opcoes { grid-template-columns: 1fr; }

  .hud {
    grid-template-columns: 1fr auto 1fr;
    gap: 8px;
  }

  .hud-nome { font-size: .6rem; }
  .cronometro { width: 48px; height: 48px; }
  .cronometro span { font-size: .9rem; }

  .painel-pergunta { padding: 16px; }
  .pergunta-texto { font-size: .95rem; }
  pre { font-size: .78rem; }

  .expl-card { padding: 20px 18px; }
  .placar-vs { flex-direction: column; text-align: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}