:root{
  --bg0:#070A12;
  --bg1:#0B1022;
  --text:#EAF0FF;
  --muted:#AAB4D6;
  --line:rgba(255,255,255,.10);
  --line2:rgba(255,255,255,.06);
  --shadow: 0 20px 80px rgba(0,0,0,.55);
  --radius: 18px;
  --radius2: 14px;

  --accent:#6EE7FF;
  --accent2:#9B8CFF;
  --good:#4ADE80;
  --warn:#FBBF24;
  --bad:#FB7185;

  --glass: rgba(255,255,255,.04);
  --glass2: rgba(255,255,255,.02);
}

*{box-sizing:border-box}
html,body{height:100%}
html{ overflow-x:hidden; }
body{
  margin:0;
  overflow-x:hidden; /* FIX: chặn lệch do overflow ngang */
  -webkit-text-size-adjust: 100%;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color:var(--text);
  background:
    radial-gradient(1100px 700px at 20% 0%, rgba(110,231,255,.14), transparent 60%),
    radial-gradient(1000px 650px at 100% 20%, rgba(155,140,255,.12), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}

/* Không padding safe-area ở body (tránh cộng dồn làm lệch) */
.bg{
  position:fixed; inset:0;
  background:
    radial-gradient(700px 400px at 30% 20%, rgba(110,231,255,.08), transparent 70%),
    radial-gradient(700px 400px at 70% 10%, rgba(155,140,255,.08), transparent 70%),
    radial-gradient(900px 500px at 50% 100%, rgba(255,255,255,.04), transparent 70%);
  pointer-events:none;
}

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:22px 20px;
  padding-left: calc(20px + env(safe-area-inset-left));
  padding-right: calc(20px + env(safe-area-inset-right));
  max-width:1100px;
  margin:0 auto;
  gap:12px;
}

@media (max-width: 680px){
  .topbar{
    flex-direction:column;
    align-items:flex-start;
    padding:18px 16px;
    padding-left: calc(16px + env(safe-area-inset-left));
    padding-right: calc(16px + env(safe-area-inset-right));
  }
}

.brand{display:flex; gap:14px; align-items:center}
.logo{
  width:44px; height:44px;
  border-radius:12px;
  display:grid; place-items:center;
  background: linear-gradient(135deg, rgba(110,231,255,.20), rgba(155,140,255,.16));
  border:1px solid var(--line);
  box-shadow: var(--shadow);
  font-size:18px;
}
.brand-title{font-size:18px; font-weight:800; letter-spacing:.2px}
.brand-sub{font-size:13px; color:var(--muted); line-height:1.4}

.pill{
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.04);
  color: var(--muted);
  font-size:12px;
  white-space: nowrap;
  flex: 0 0 auto;
}

.wrap{
  max-width:1100px;
  margin: 0 auto;
  padding: 10px 20px 40px;
  padding-left: calc(20px + env(safe-area-inset-left));
  padding-right: calc(20px + env(safe-area-inset-right));
  display:grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap:16px;
}

@media (max-width: 980px){
  .wrap{
    grid-template-columns:1fr;
    padding: 10px 16px 36px;
    padding-left: calc(16px + env(safe-area-inset-left));
    padding-right: calc(16px + env(safe-area-inset-right));
  }
}

.card{
  background: linear-gradient(180deg, var(--glass), var(--glass2));
  border:1px solid var(--line2);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
}

.wheel-card{padding:18px}
@media (max-width: 520px){
  .wheel-card{padding:14px}
}

/* khu game */
.wheel-area{
  position:relative;
  display:grid;
  place-items:center;
  padding: 10px 0 8px;
}

/* ====== LUCKY CARD GAME ====== */
.game{
  width: 100%;              /* FIX: bỏ vw để tránh lệch trên iOS */
  max-width: 560px;
  display:grid;
  gap:14px;
  place-items:center;
  margin: 0 auto;
}

.game-head{
  width:100%;
  display:flex;
  flex-wrap:wrap;           /* FIX: pill không bị đẩy ra ngoài */
  justify-content:space-between;
  align-items:flex-start;
  gap:10px;
}

.game-head > div:first-child{
  flex: 1 1 260px;
  min-width: 0;             /* FIX: cho text co lại thay vì đẩy pill */
}

.game-title{
  margin:0;
  font-size:18px;
  font-weight:900;
  letter-spacing:.2px;
}

.game-sub{
  margin:4px 0 0;
  color:var(--muted);
  font-size:13px;
  line-height:1.45;
  overflow-wrap:anywhere;   /* FIX: không đẩy layout */
}

.deck{
  width:100%;
  display:flex;             /* FIX: center ổn định hơn grid trên iOS */
  justify-content:center;
  align-items:center;
  padding: 10px 0 4px;
}

/* Fit theo cả width + height, tránh “phải zoom web mới xem full” */
.card3d{
  width: min(360px, 92%);
  max-width: calc(70svh * 0.75);
  aspect-ratio: 3 / 4;
  border-radius: 22px;
  position:relative;
  transform-style: preserve-3d;
  transition: transform 850ms cubic-bezier(.2,.8,.2,1);
  box-shadow:
    0 30px 80px rgba(0,0,0,.60),
    0 0 0 1px rgba(255,255,255,.10) inset;
}

@supports not (height: 1svh){
  .card3d{ max-width: calc(70vh * 0.75); }
}

@media (max-height: 740px){
  .card3d{ max-width: calc(64svh * 0.75); }
}
@media (max-height: 660px){
  .card3d{ max-width: calc(58svh * 0.75); }
}

.card-face{
  position:absolute;
  inset:0;
  border-radius: 22px;
  backface-visibility: hidden;
  overflow:hidden;
}

/* Mặt trước */
.card-front{
  background:
    radial-gradient(500px 320px at 30% 20%, rgba(110,231,255,.20), transparent 60%),
    radial-gradient(520px 340px at 100% 10%, rgba(155,140,255,.16), transparent 58%),
    linear-gradient(180deg, rgba(255,255,255,.08), rgba(0,0,0,.22));
  border:1px solid rgba(255,255,255,.12);
}

.card-front::after{
  content:"";
  position:absolute;
  inset:-40%;
  background:
    repeating-linear-gradient(
      45deg,
      rgba(255,255,255,.08) 0 10px,
      rgba(255,255,255,.00) 10px 22px
    );
  transform: rotate(10deg);
  opacity:.32;
}

.card-front-inner{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 18px;
  text-align:center;
}

.card-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 6px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.22);
  color: rgba(255,255,255,.90);
  font-size:12px;
  letter-spacing:.2px;
}
.card-mark{
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(110,231,255,.35);
}

.card-front-title{
  font-weight:950;
  font-size: clamp(28px, 4.6vw, 36px);
  color: var(--accent);
  text-shadow: 0 10px 30px rgba(0,0,0,.55);
}

.card-front-sub{
  font-size: 13px;
  color: rgba(255,255,255,.82);
  line-height:1.55;
  max-width: 30ch;
}

/* Mặt sau */
.card-back{
  transform: rotateY(180deg);
  background:
    radial-gradient(500px 320px at 30% 20%, rgba(255,255,255,.08), transparent 60%),
    linear-gradient(180deg, rgba(0,0,0,.25), rgba(0,0,0,.55));
  border:1px solid rgba(255,255,255,.12);
}

.card-back-inner{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 18px;
  text-align:center;
}

.result-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 8px 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.16);
  background: rgba(0,0,0,.22);
  font-weight:900;
  letter-spacing:.2px;
}
.result-pill.win{ border-color: rgba(74,222,128,.35); background: rgba(74,222,128,.10); }
.result-pill.lose{ border-color: rgba(251,191,36,.35); background: rgba(251,191,36,.10); }

.result-title{
  font-weight:950;
  font-size: 24px;
  letter-spacing:.2px;
}
.result-desc{
  font-size: 13px;
  color: rgba(255,255,255,.86);
  line-height:1.55;
  max-width: 28ch;
}

.card3d.is-flipped{ transform: rotateY(180deg); }

/* Buttons */
.actions{
  display:flex;
  gap:10px;
  margin-top: 6px;
  flex-wrap:wrap;
  justify-content:center;
}

.btn{
  appearance:none;
  border:1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.06);
  color:var(--text);
  border-radius: 14px;
  padding: 12px 16px;
  cursor:pointer;
  transition: transform .06s ease, background .18s ease, border-color .18s ease, opacity .18s ease;
  user-select:none;
}
.btn:hover{background: rgba(255,255,255,.08)}
.btn:active{transform: translateY(1px)}
.btn[disabled]{opacity:.55; cursor:not-allowed}

.btn-primary{
  min-width: 176px;
  border-radius: 999px;
  border:1px solid rgba(110,231,255,.26);
  background: radial-gradient(circle at 30% 25%, rgba(110,231,255,.18), rgba(155,140,255,.10));
  box-shadow: 0 18px 55px rgba(0,0,0,.55);
  font-weight:950;
}
.btn-secondary{
  background: rgba(110,231,255,.08);
  border-color: rgba(110,231,255,.22);
}
.btn-ghost{
  background: transparent;
  border-color: rgba(255,255,255,.14);
  color: var(--muted);
}

/* form actions */
.form-actions{
  justify-content:flex-start;
  margin-top: 12px;
}

/* Meta */
.wheel-meta{
  margin-top: 14px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:10px;
}
@media (max-width: 520px){
  .wheel-meta{grid-template-columns:1fr}
}

.meta-row{
  padding: 12px 12px;
  border:1px solid var(--line2);
  border-radius: var(--radius2);
  background: rgba(0,0,0,.18);
}
.meta-title{font-size:12px; color: var(--muted)}
.meta-value{font-size:14px; font-weight:800; margin-top:4px}

.form-card{padding:18px 18px 14px}
@media (max-width: 520px){
  .form-card{padding:14px}
}
.form-card h2{margin:0 0 8px; font-size:18px}
.muted{margin:0 0 14px; color:var(--muted); font-size:13px; line-height:1.55}

.field{display:block; margin:12px 0}
.field-label{display:block; font-size:12px; color:var(--muted); margin-bottom:6px}
.field input{
  width:100%;
  padding: 12px 12px;
  border-radius: 12px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.22);
  color: var(--text);
  outline:none;
  font-size:16px;
}
.field input:focus{
  border-color: rgba(110,231,255,.40);
  box-shadow: 0 0 0 3px rgba(110,231,255,.10);
}
.field-hint{display:block; font-size:12px; color: var(--bad); margin-top:6px; min-height: 16px}

.result{
  margin-top: 14px;
  padding: 12px;
  border-radius: 14px;
  border:1px dashed rgba(255,255,255,.14);
  background: rgba(0,0,0,.20);
  font-size:13px;
  line-height:1.55;
  min-height: 44px;
}
.result b{color: rgba(255,255,255,.95)}

.badge{
  display:inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
  font-size:12px;
  margin-right:8px;
}
.badge.good{border-color: rgba(74,222,128,.35); background: rgba(74,222,128,.10)}
.badge.warn{border-color: rgba(251,191,36,.35); background: rgba(251,191,36,.10)}
.badge.bad{border-color: rgba(251,113,133,.35); background: rgba(251,113,133,.10)}

.footnote{
  margin-top: 12px;
  color: var(--muted);
  font-size:12px;
  display:flex;
  gap:8px;
  align-items:center;
  flex-wrap:wrap;
}
.sep{opacity:.5}

.confetti{
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:999;
}