/* MVP styling inspired by screenshots (teal card + beige spine, dark background) */

:root{
  --app-header-h: 56px;
  --bg: #274b52;
  --panel: #3c6a72;
  --panel2: #2f5961;
  --spine: #b89b6f;
  --text: #eaf4f7;
  --muted: rgba(234,244,247,.7);
  --shadow: rgba(0,0,0,.25);
  --btnKnow: #c8f7c8;
  --btnNo: #f6d4a7;
  --btnHard: #f4b7a9;
  --chip: #2d606e;
  --outline: #2c5666;
  --danger: #ff6b6b;
  --ok: #67e28d;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background: linear-gradient(180deg, #2a5560, var(--bg));
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
}

#app{
  min-height: 100dvh;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:flex-start;

  /* Safe-area (iPhone Dynamic Island / notches) + Telegram mini-app insets */
  padding:
    calc(18px + env(safe-area-inset-top, 0px) + var(--tg-safe-top, 0px) + var(--tg-viewport-safe-top, 0px) + var(--tg-top-extra, 0px) + var(--app-header-h))
    14px
    calc(22px + env(safe-area-inset-bottom, 0px) + var(--tg-safe-bottom, 0px) + var(--tg-viewport-safe-bottom, 0px) + var(--tg-bottom-extra, 0px));

  gap: 14px;
}

.topbar{
  width:min(520px, 100%);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 4px 2px;
}

.stats{
  display:flex;
  gap:10px;
  align-items:center;
  font-weight:600;
  letter-spacing:.2px;
}

.badge{
  background: var(--chip);
  padding: 7px 10px;
  border-radius: 18px;
  border: 1px solid var(--outline);
  font-size: 14px;
}

.timer{
  font-variant-numeric: tabular-nums;
  opacity: .9;
}

.cardWrap{
  width:min(520px, 100%);
  border-radius: 22px;
}

.card{
  position:relative;
  border-radius: 20px;
  overflow:hidden;
  background: var(--panel);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.06);
  height: 340px;
  display:flex;
  flex-direction:column;
}

.card .spine{
  position:absolute;
  left:0; top:0; bottom:0;
  width: 20px;
  background: var(--spine);
  opacity:.95;
}

.cardHeader{
  position:absolute;
  right: 10px; top: 10px;
  display:flex;
  gap:10px;
}

.iconBtn{
  width: 44px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.18);
  color: var(--text);
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  user-select:none;
}

.iconBtn:active{ transform: translateY(1px); }

.word{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 26px 22px 10px;
  text-align:center;
  font-size: clamp(44px, 10vw, 76px);
  font-weight: 800;
  letter-spacing: .2px;
  line-height: 1.10;
  white-space: normal;
  word-break: normal;
  overflow-wrap: break-word;
  hyphens: auto;
}
.word.long{
  font-size: clamp(32px, 7.2vw, 60px);
  line-height: 1.14;
}
.word.xlong{
  font-size: clamp(28px, 6.4vw, 52px);
  line-height: 1.16;
}

.translation{
  padding: 0 18px 16px;
  display:flex;
  justify-content:center;
}

.spoiler{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width: 180px;
  max-width: 88%;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.18);
  font-size: 18px;
  font-weight: 700;
  cursor:pointer;
  user-select:none;
}

.spoiler[data-revealed="0"] .spoilerText{
  color: transparent;
  text-shadow: 0 0 10px rgba(234,244,247,.75);
  filter: blur(7px);
  text-align: center;
}

.spoiler[data-revealed="0"]::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius: 14px;
  background:
    radial-gradient(circle at 10px 10px, rgba(255,255,255,.22) 1px, transparent 1.6px) 0 0/18px 18px,
    radial-gradient(circle at 6px 14px, rgba(255,255,255,.12) 1px, transparent 1.6px) 0 0/22px 22px;
  opacity:.55;
  mix-blend-mode: overlay;
  pointer-events:none;
}

.spoilerHint{
  margin-top: 10px;
  text-align:center;
  color: var(--muted);
  font-size: 13px;
}

.actions{
  width:min(520px, 100%);
  display:flex;
  gap: 12px;
  justify-content:space-between;
}

.bigBtn{
  flex:1;
  border: none;
  border-radius: 16px;
  padding: 16px 14px;
  font-weight: 900;
  letter-spacing: .3px;
  font-size: 18px;
  cursor:pointer;
  box-shadow: 0 8px 16px var(--shadow);
}

.bigBtn:active{ transform: translateY(1px); }

.bigBtn.no{ background: var(--btnNo); color: #2b2b2b; }
.bigBtn.know{ background: var(--btnKnow); color: #2b2b2b; }
.bigBtn.hard{ background: var(--btnHard); color: #2b2b2b; }

.subtle{
  width:min(520px, 100%);
  display:flex;
  justify-content:center;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
  padding: 0 2px;
}

/* Match mode */
.matchWrap{
  width:min(620px, 100%);
  background: rgba(0,0,0,.12);
  border-radius: 22px;
  padding: 18px 16px 16px;
  box-shadow: 0 10px 30px var(--shadow);
}

.matchTitle{
  font-size: 22px;
  font-weight: 900;
  margin: 0 0 10px;
}

.matchHint{
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 14px;
}

.grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.pill{
  border-radius: 16px;
  padding: 14px 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.16);
  color: var(--text);
  font-weight: 800;
  cursor:pointer;
  user-select:none;
  min-height: 52px;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
}

.pill:active{ transform: translateY(1px); }

.pill.dim{ opacity: .35; cursor: default; }
.pill.sel{ outline: 2px solid rgba(255,255,255,.40); }
.pill.ok{ outline: 2px solid rgba(103,226,141,.75); }
.pill.bad{ outline: 2px solid rgba(255,107,107,.75); }

.footerRow{
  width:min(620px, 100%);
  display:flex;
  gap:12px;
  margin-top: 12px;
}

.smallBtn{
  flex:1;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.18);
  color: var(--text);
  border-radius: 14px;
  padding: 12px 12px;
  font-weight: 800;
  cursor:pointer;
}

.smallBtn:active{ transform: translateY(1px); }

@media (max-width: 420px){
  .card{ height: 320px; }
}

.iconBtn svg{ width: 20px; height: 20px; display:block; }

.scoreBadge{
  min-width: 110px;
  text-align:center;
  font-variant-numeric: tabular-nums;
}
.scoreStars{
  letter-spacing: 1px;
}

.tgScoreWrap{
  position: fixed;
  left: 0;
  right: 0;
  top: calc(env(safe-area-inset-top, 0px) + var(--tg-safe-top, 0px) + var(--tg-viewport-safe-top, 0px) + var(--tg-top-extra, 0px));
  height: var(--app-header-h);
  display:flex;
  align-items:center;
  justify-content:center;
  z-index: 50;
  pointer-events: none; /* don't block Telegram controls */
}

.tgScoreBadge{
  display:inline-flex;
  flex-direction:column;
  gap: 2px;
  align-items:center;
  justify-content:center;
  padding: 8px 20px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.16);
  min-width: 150px;
}

.tgScoreLine1{
  font-weight: 900;
  letter-spacing: .3px;
  line-height: 1.0;
  white-space: nowrap;
}
.tgScoreLine2{
  font-weight: 400;
  opacity: .9;
  font-variant-numeric: tabular-nums;
  line-height: 1.0;
  white-space: nowrap;
}
.tgScoreFlame{
  display:inline-block;
  width: 34px; /* reserve space to prevent layout shift */
  text-align: left;
}