.mem-page{padding:28px 0 70px}
.mem-top{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}
.mem-title h1{margin:0;font-size:clamp(32px,5vw,50px);letter-spacing:-1px}
.mem-title p{margin:6px 0 0;color:var(--muted)}
.mem-stats{display:flex;gap:9px;flex-wrap:wrap}
.mem-stat{min-width:90px;padding:10px 13px;border:1px solid var(--line);border-radius:10px;background:#050b12;text-align:center}
.mem-stat b{display:block;font-size:21px;color:var(--blue2)}
.mem-stat span{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.7px}
.mem-shell{border:1px solid var(--line);border-radius:17px;padding:18px;background:radial-gradient(circle at 50% 0%,rgba(0,140,255,.10),transparent 35%),#040a10;max-width:820px;margin:auto}
.mem-toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:15px}
.mem-level{display:flex;gap:7px;flex-wrap:wrap}
.level-btn{border:1px solid var(--line);background:#06101a;color:#b8c7d2;border-radius:8px;padding:8px 10px;font-weight:800;font-size:12px;cursor:pointer;transition:.15s}
.level-btn:hover{border-color:#1e86bd}
.level-btn.active{border-color:#149de3;color:white;background:#06304b}
.mem-message{font-size:13px;color:var(--muted);text-align:right}
.memory-grid{display:grid;gap:12px;max-width:650px;margin:auto;min-height:200px}
.memory-grid.easy,.memory-grid.normal{grid-template-columns:repeat(4,1fr)}
.memory-grid.hard{grid-template-columns:repeat(5,1fr)}
.memory-grid.master{grid-template-columns:repeat(6,1fr)}

/* Carta 1:1 — aspect-ratio (iOS) + fallback padding */
.memory-card{
  position:relative;
  width:100%;
  aspect-ratio:1 / 1;
  height:auto;
  min-height:0;
  border:0;
  background:transparent;
  padding:0;
  margin:0;
  -webkit-perspective:1000px;
  perspective:1000px;
  cursor:pointer;
  appearance:none;-webkit-appearance:none;
  outline:none;
  touch-action:manipulation;
  -webkit-user-select:none;user-select:none;
  -webkit-tap-highlight-color:transparent;
  -webkit-transform:translateZ(0);
  transform:translateZ(0);
}
@supports not (aspect-ratio: 1 / 1) {
  .memory-card{
    height:0;
    padding-bottom:100%;
  }
}
.memory-card:focus-visible{outline:2px solid var(--blue2);outline-offset:3px}

.memory-inner{
  position:absolute;inset:0;
  width:100%;height:100%;
  -webkit-transform-style:preserve-3d;
  transform-style:preserve-3d;
  -webkit-transition:-webkit-transform .4s cubic-bezier(.2,.8,.2,1);
  transition:transform .4s cubic-bezier(.2,.8,.2,1);
  -webkit-transform:rotateY(0deg);
  transform:rotateY(0deg);
}
.memory-card.flipped .memory-inner,
.memory-card.matched .memory-inner{
  -webkit-transform:rotateY(180deg);
  transform:rotateY(180deg);
}

.memory-face{
  position:absolute;inset:0;
  -webkit-backface-visibility:hidden;
  backface-visibility:hidden;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  pointer-events:none; /* toque vai para o button — melhor no iOS */
}

/* VERSO — contraste alto */
.memory-back{
  background:#0c3048;
  background-image:linear-gradient(145deg,#0e3a58 0%,#0a2840 40%,#061a2c 100%);
  border:2px solid #2a9fd6;
  box-shadow:
    0 6px 18px rgba(0,0,0,.4),
    0 0 0 1px rgba(0,140,255,.2),
    inset 0 1px 0 rgba(255,255,255,.06);
  -webkit-transform:rotateY(0deg);
  transform:rotateY(0deg);
}

.memory-back img{
  width:50%;height:50%;
  object-fit:contain;
  display:block;
  position:relative;
  z-index:2;
  pointer-events:none;
  -webkit-user-drag:none;
  filter:drop-shadow(0 0 14px rgba(0,180,255,.55));
}

/* FRENTE */
.memory-front{
  -webkit-transform:rotateY(180deg);
  transform:rotateY(180deg);
  background:linear-gradient(145deg,#123a55,#0a1c2e);
  border:2px solid #2a9fd6;
  font-size:clamp(30px,6.5vw,52px);
  box-shadow:0 0 24px rgba(0,140,255,.2);
}
.memory-card.matched .memory-front{
  border-color:#00d4ff;
  box-shadow:0 0 28px rgba(0,200,255,.4);
  background:linear-gradient(145deg,#15506e,#0c2840);
}
.memory-card.matched{pointer-events:none}

.mem-result{display:none;text-align:center;padding:28px 15px}
.mem-result.show{display:block}
.mem-result .trophy{font-size:58px}
.mem-result h2{font-size:30px;margin:8px 0}
.mem-result p{color:var(--muted);line-height:1.6}
.mem-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:16px}

.mem-ranking{
  max-width:820px;margin:18px auto 0;
  border:1px solid var(--line);border-radius:14px;background:#050b12;padding:18px;
}
.mem-ranking h3{margin:0 0 12px}
.rank-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.rank-tab{
  border:1px solid var(--line);background:#06101a;color:#b8c7d2;
  border-radius:8px;padding:7px 11px;font-weight:800;font-size:12px;cursor:pointer;
}
.rank-tab.active{border-color:#149de3;color:white;background:#06304b}
.rank-list{min-height:120px}
.rank-row{
  display:grid;grid-template-columns:42px 1fr 70px 80px 70px;
  gap:8px;padding:10px 4px;border-bottom:1px solid #102536;font-size:13px;align-items:center;
}
.rank-row:last-child{border-bottom:0}
.rank-row .muted{color:var(--muted)}
.rank-row .pos{font-weight:900;color:var(--blue2)}
.rank-empty{text-align:center;color:var(--muted);padding:28px 10px;font-size:14px}
.rank-loading{text-align:center;color:var(--muted);padding:24px;font-size:13px}
.mem-note{max-width:820px;margin:12px auto 0;color:#718697;font-size:11px;text-align:center}

.mem-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.72);backdrop-filter:blur(6px);
  z-index:100;display:flex;align-items:center;justify-content:center;padding:16px;
}
.mem-modal{
  background:#07111c;border:1px solid #1a6a9a;border-radius:16px;
  padding:24px 20px;width:min(360px,100%);text-align:center;
  box-shadow:0 20px 50px rgba(0,0,0,.5);
}
.mem-modal h3{margin:0 0 8px;font-size:22px}
.mem-modal p{color:var(--muted);font-size:13px;margin:0 0 14px;line-height:1.5}
.mem-modal input{
  width:100%;padding:12px 14px;border-radius:9px;border:1px solid var(--line);
  background:#050b12;color:white;font-size:16px;outline:none;margin-bottom:14px;
}
.mem-modal input:focus{border-color:#149de3}
.mem-modal .row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}

@media(max-width:600px){
  .mem-page{padding-top:18px}
  .mem-top{display:block}
  .mem-stats{margin-top:14px}
  .mem-toolbar{display:block}
  .mem-message{text-align:left;margin-top:10px}
  .memory-grid{gap:8px}
  .memory-grid.master{grid-template-columns:repeat(4,1fr)}
  .rank-row{grid-template-columns:32px 1fr 58px 64px 55px;font-size:12px;gap:4px}
}


.mem-toolbar-actions{display:flex;gap:8px;flex-wrap:wrap}
.mem-lobby{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:36px 16px;min-height:220px;gap:8px;
}
.mem-lobby .lobby-icon{
  width:88px;height:88px;border-radius:20px;overflow:hidden;
  border:2px solid #2a9fd6;box-shadow:0 0 24px rgba(0,140,255,.25);
  margin-bottom:8px;
}
.mem-lobby .lobby-icon img{width:100%;height:100%;object-fit:cover;display:block}
.mem-lobby p{margin:0;color:var(--muted);font-size:15px;line-height:1.5}
.mem-lobby .lobby-hint{font-size:12px;color:#6a8094}
.level-btn:disabled{opacity:.45;cursor:not-allowed}
.memory-back img{
  width:58%;height:58%;object-fit:contain;display:block;
  border-radius:12px;
  filter:drop-shadow(0 0 10px rgba(0,140,255,.35));
  position:relative;z-index:2;
  pointer-events:none;
  -webkit-user-drag:none;
}