/* Morse Station — estilo */
:root {
  --bg: #F3EEE4; --surface: #FFFCF6; --surface-2: #ECE5D8; --ink: #1C2333; --ink-2: #434A5B; --muted: #6E6A62; --line: #E1D8C8;
  --accent: #A85512; --accent-forte: #8E470E; --accent-suave: #F5E2CC; --on-accent: #FFFFFF;
  --lamp: #F4A53A; --lamp-glow: rgba(244, 165, 58, .55);
  --ok: #2B7553; --ok-suave: #DCEEE3; --err: #B23E2C; --err-suave: #F7DFD8;
  --sombra: 0 1px 2px rgba(28, 35, 51, .06), 0 10px 28px rgba(28, 35, 51, .07);
  --r: 18px;
  --f-tit: 'Fraunces', Georgia, 'Times New Roman', serif;
  --f-txt: 'Figtree', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --nav-h: 66px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #10141B; --surface: #181D27; --surface-2: #232A38; --ink: #EFE8DB; --ink-2: #CBC4B6; --muted: #9A958B; --line: #2C3442;
    --accent: #E8913A; --accent-forte: #F3A658; --accent-suave: #3A2918; --on-accent: #1B1207;
    --lamp: #FFB54A; --lamp-glow: rgba(255, 181, 74, .5);
    --ok: #5CC28F; --ok-suave: #16302A; --err: #F08069; --err-suave: #3A1F1B;
    --sombra: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 28px rgba(0, 0, 0, .25);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink); font-family: var(--f-txt); font-size: 16px; line-height: 1.5;
  -webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: transparent; min-height: 100dvh;
}
h1, h2, h3 { font-family: var(--f-tit); font-weight: 700; line-height: 1.15; margin: 0 0 .4em; letter-spacing: -.01em; }
h1 { font-size: 28px; }
h2 { font-size: 21px; }
p { margin: 0 0 .8em; }
a { color: var(--accent); }
button { font: inherit; color: inherit; }
svg { display: block; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 8px; }

/* ---------- topo e navegação ---------- */
.topo {
  position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: calc(env(safe-area-inset-top) + 10px) 16px 10px; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px);
}
.marca { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--f-tit); font-weight: 700; font-size: 19px; white-space: nowrap; }
.marca svg { width: 34px; height: 34px; }
.m-fundo { fill: #1C2333; } .m-ponto { fill: #F4A53A; } .m-traco { fill: #F3EEE4; }
@media (prefers-color-scheme: dark) { .m-fundo { fill: #F4A53A; } .m-ponto { fill: #1C2333; } .m-traco { fill: #1C2333; } }
.topo-acoes { display: flex; gap: 8px; align-items: center; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  border-radius: 99px; padding: 6px 12px; font-size: 14px; font-weight: 700; text-decoration: none; cursor: pointer;
}
.chip svg { width: 16px; height: 16px; fill: var(--accent); }
#view { display: block; max-width: 600px; margin: 0 auto; padding: 8px 16px calc(var(--nav-h) + env(safe-area-inset-bottom) + 28px); outline: none; }
.abas {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; display: flex; justify-content: center;
  background: color-mix(in srgb, var(--surface) 94%, transparent); border-top: 1px solid var(--line);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); padding-bottom: env(safe-area-inset-bottom);
}
.abas a {
  flex: 1; max-width: 120px; height: var(--nav-h); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  color: var(--muted); text-decoration: none; font-size: 12px; font-weight: 600;
}
.abas a svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.abas a.ativa { color: var(--accent); }
.abas a.ativa svg { stroke-width: 2.3; }
.abas a b { font-weight: 700; }
body.em-sessao .topo, body.em-sessao .abas { display: none; }
body.em-sessao #view { padding: 0; max-width: 640px; }

/* ---------- peças básicas ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 12px 20px;
  border-radius: 14px; border: 1px solid transparent; font-weight: 700; font-size: 16px; text-decoration: none; cursor: pointer;
  transition: transform .08s ease, background .15s ease, opacity .15s; user-select: none;
}
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .45; cursor: default; transform: none; }
.btn svg { width: 20px; height: 20px; fill: currentColor; }
.btn svg .tr { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.btn.prim { background: var(--accent); color: var(--on-accent); }
.btn.prim:hover:not(:disabled) { background: var(--accent-forte); }
.btn.sec { background: var(--surface-2); color: var(--ink); }
.btn.fantasma { background: transparent; color: var(--ink-2); }
.btn.perigo { background: var(--err-suave); color: var(--err); }
.btn.grande { min-height: 56px; font-size: 17px; width: 100%; }
.link { background: none; border: 0; color: var(--accent); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; padding: 6px; }
.kicker { display: block; font-size: 12px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; color: var(--accent); margin-bottom: 6px; }
.secao { font-size: 19px; margin: 28px 0 12px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; box-shadow: var(--sombra); margin-bottom: 14px; }
.nota { color: var(--muted); font-size: 14px; }
.vazio { color: var(--muted); font-size: 14px; }
.emoji { font-size: 1.4em; line-height: 1; }
.pag-topo { margin: 8px 0 16px; }
.pag-topo p { color: var(--ink-2); }
.voltar { display: inline-block; margin: 6px 0 10px; font-weight: 700; text-decoration: none; padding: 4px 0; }

/* ---------- código: pontos e traços desenhados ---------- */
.codigo { display: inline-flex; align-items: center; gap: .34em; font-size: 16px; color: var(--ink); vertical-align: middle; }
.codigo i { display: block; height: .62em; border-radius: 99px; background: currentColor; transition: background .05s, box-shadow .05s; }
.codigo i.p { width: .62em; }
.codigo i.t { width: 1.86em; }
.codigo i.on { background: var(--lamp); box-shadow: 0 0 .7em var(--lamp-glow); }
.codigo.xs { font-size: 9px; } .codigo.sm { font-size: 12px; } .codigo.md { font-size: 18px; } .codigo.lg { font-size: 24px; } .codigo.xl { font-size: 34px; }
.codtexto { display: inline-flex; flex-wrap: wrap; align-items: center; row-gap: .7em; column-gap: 1.1em; }
.codtexto .codigo { font-size: inherit; }
.codtexto.xs { font-size: 8px; } .codtexto.sm { font-size: 11px; } .codtexto.md { font-size: 15px; } .codtexto.lg { font-size: 20px; } .codtexto.xl { font-size: 26px; }
.cpal { display: inline-flex; flex-wrap: wrap; align-items: center; gap: .9em; }
.cbarra { display: inline-block; width: 2px; height: 1.3em; background: var(--line); border-radius: 2px; margin: 0 .2em; }

/* ---------- lâmpada ---------- */
.lampada {
  display: inline-block; width: 18px; height: 18px; border-radius: 50%; flex: none;
  background: radial-gradient(circle at 35% 30%, color-mix(in srgb, var(--surface-2) 60%, #fff), var(--surface-2));
  border: 2px solid var(--line); transition: background .04s, box-shadow .04s;
}
.lampada.acesa { background: radial-gradient(circle at 35% 30%, #FFF4DA, var(--lamp) 55%); border-color: var(--lamp); box-shadow: 0 0 18px 4px var(--lamp-glow); }
.lampada.grande { width: 46px; height: 46px; border-width: 3px; }
.lampada.grande.acesa { box-shadow: 0 0 36px 10px var(--lamp-glow); }
.lampada.mini { width: 12px; height: 12px; border-width: 1.5px; vertical-align: -1px; }

/* ---------- trilha ---------- */
.hero { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 22px 20px; box-shadow: var(--sombra); margin: 4px 0 16px; }
.hero h1 { font-size: 30px; }
.hero p { color: var(--ink-2); }
.hero-sinal { margin-bottom: 14px; color: var(--accent); }
.hero-sinal .codigo { color: var(--accent); }
.hero-cod { font-size: 13px; }
.hero-dicas { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 8px; font-size: 14px; color: var(--ink-2); }
.hero-dicas li { display: flex; align-items: center; gap: 10px; }
.hero-dicas svg { width: 20px; height: 20px; fill: var(--accent); flex: none; }
.hero-dicas svg .tr { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; }
.hero.continuar h1 { font-size: 25px; }
.mini-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.mini-stats > * {
  background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 12px 10px; text-align: left;
  display: flex; flex-direction: column; gap: 2px; color: var(--ink); text-decoration: none; cursor: default;
}
.mini-stats button { cursor: pointer; }
.mini-stats b { font-family: var(--f-tit); font-size: 24px; line-height: 1; }
.mini-stats small { font-size: 14px; color: var(--muted); font-family: var(--f-txt); }
.mini-stats span { font-size: 12.5px; color: var(--muted); line-height: 1.25; }
.mini-stats .tem { background: var(--accent-suave); border-color: transparent; }
.mini-stats .tem b { color: var(--accent); }

.trilha { list-style: none; margin: 0; padding: 0; position: relative; }
.trilha::before { content: ''; position: absolute; left: 27px; top: 24px; bottom: 24px; width: 2px; background: var(--line); }
.fase-item { position: relative; margin-bottom: 10px; }
.fase-card {
  display: flex; align-items: center; gap: 14px; padding: 12px 14px 12px 8px; text-decoration: none; color: var(--ink);
  border-radius: 18px; border: 1px solid transparent;
}
.fase-item.atual .fase-card { background: var(--surface); border-color: var(--line); box-shadow: var(--sombra); }
.fase-num {
  position: relative; z-index: 1; flex: none; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  font-family: var(--f-tit); font-weight: 700; font-size: 18px; background: var(--surface); border: 2px solid var(--line); color: var(--ink-2);
}
.fase-num svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; }
.fase-item.atual .fase-num { background: var(--accent); border-color: var(--accent); color: var(--on-accent); box-shadow: 0 0 0 5px var(--accent-suave); }
.fase-item.feita .fase-num { background: var(--ok-suave); border-color: var(--ok); color: var(--ok); }
.fase-item.trancada .fase-card { opacity: .62; }
.fase-txt { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.fase-tit { font-weight: 700; font-size: 16.5px; }
.fase-sub { font-size: 13.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fase-chars { font-weight: 700; color: var(--ink-2); letter-spacing: .06em; }
.fase-dir { flex: none; }
.pips { display: flex; gap: 4px; }
.pips i { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.pips i.on { background: var(--accent); }
.estrelas { display: inline-flex; gap: 1px; font-style: normal; font-size: 15px; }
.estrelas i { font-style: normal; color: var(--line); }
.estrelas i.on { color: var(--lamp); }

/* ---------- fase ---------- */
.fase-topo p { color: var(--ink-2); }
.fase-letras { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 14px 0 18px; }
.fase-letras.muitas { grid-template-columns: repeat(5, 1fr); }
.fl {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; min-height: 86px; padding: 10px 4px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 16px; cursor: pointer;
}
.fl b { font-family: var(--f-tit); font-size: 28px; line-height: 1; }
.fl .codigo { font-size: 11px; }
.fl .codtexto { font-size: 7px; justify-content: center; }
.fase-letras.muitas .fl { min-height: 72px; }
.fase-letras.muitas .fl b { font-size: 22px; }
.fase-letras.muitas .fl .codigo { font-size: 7px; }
.etapas { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 10px; }
.etapa {
  width: 100%; display: flex; align-items: center; gap: 14px; padding: 14px; text-align: left; cursor: pointer;
  background: var(--surface); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--sombra);
}
.etapa-n { flex: none; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-suave); color: var(--accent); font-weight: 800; }
.etapa.feita .etapa-n { background: var(--ok-suave); color: var(--ok); }
.etapa-txt { flex: 1; display: flex; flex-direction: column; }
.etapa-txt b { font-size: 16.5px; }
.etapa-txt small { color: var(--muted); font-size: 13.5px; line-height: 1.35; }
.etapa-extra { flex: none; color: var(--muted); font-weight: 700; font-size: 14px; display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.aviso { background: var(--accent-suave); border-radius: 18px; padding: 16px; margin-bottom: 18px; }
.tecnica p { color: var(--ink-2); }
.tecnica p:last-child { margin-bottom: 0; }

/* ---------- sessão ---------- */
.sessao { min-height: 100dvh; display: flex; flex-direction: column; }
.s-topo { display: flex; align-items: center; gap: 12px; padding: calc(env(safe-area-inset-top) + 10px) 16px 8px; }
.s-fechar { width: 44px; height: 44px; border-radius: 50%; border: 0; background: transparent; display: grid; place-items: center; cursor: pointer; flex: none; margin-left: -8px; }
.s-fechar svg { width: 22px; height: 22px; stroke: var(--ink-2); stroke-width: 2.2; stroke-linecap: round; fill: none; }
.s-barra { flex: 1; height: 10px; border-radius: 99px; background: var(--surface-2); overflow: hidden; }
.s-barra i { display: block; height: 100%; width: 0; background: var(--accent); border-radius: 99px; transition: width .35s ease; }
.s-cont { flex: none; min-width: 40px; text-align: right; font-weight: 700; font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.s-corpo { flex: 1; padding: 12px 16px 20px; display: flex; flex-direction: column; align-items: center; }
.s-rodape {
  position: sticky; bottom: 0; display: flex; gap: 10px; align-items: center; padding: 12px 16px calc(env(safe-area-inset-bottom) + 14px);
  background: linear-gradient(to top, var(--bg) 75%, transparent);
}
.s-rodape > .btn { flex: 1; }
.s-rodape > .btn.sec:not(:last-child) { flex: 0 0 auto; }
.rod-dica { flex: 1; text-align: center; color: var(--muted); font-size: 14px; }

/* cartões da lição */
.cartao { width: 100%; background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 24px 20px; box-shadow: var(--sombra); margin-top: 8px; }
.cartao p { color: var(--ink-2); }
.cartao > .lampada.grande { display: block; margin: 0 auto 10px; }
.cartao.letra { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px; }
.cl-char { font-family: var(--f-tit); font-size: 96px; line-height: 1; font-weight: 700; margin-top: 4px; }
.cl-char.msg { font-size: 64px; letter-spacing: .04em; }
.cl-nome { color: var(--muted); font-weight: 700; }
.cl-cod { background: none; border: 0; padding: 14px 10px; cursor: pointer; border-radius: 16px; max-width: 100%; }
.cl-cod .codtexto { justify-content: center; }
.cl-cod:hover { background: var(--surface-2); }
.cl-ritmo { font-weight: 800; letter-spacing: .08em; color: var(--accent); font-size: 18px; }
.cl-pc { display: flex; align-items: center; gap: 10px; margin-top: 10px; padding: 12px 16px; background: var(--surface-2); border-radius: 16px; }
.cl-regra { font-size: 12.5px; color: var(--muted) !important; margin: 4px 0 0; }
.cl-dica { margin: 12px 0 0; max-width: 34ch; }
.pc { display: inline-flex; align-items: flex-end; flex-wrap: wrap; justify-content: center; gap: 2px; }
.sil { display: inline-flex; flex-direction: column; align-items: center; gap: 5px; padding: 0 2px; }
.sil.fim { margin-right: 10px; }
.sil b { font-size: 21px; font-weight: 600; color: var(--ink-2); line-height: 1.1; }
.sil.t b { font-weight: 800; color: var(--ink); text-transform: uppercase; }
.sil i { display: block; height: 6px; border-radius: 6px; background: var(--muted); }
.sil.p i { width: 6px; }
.sil.t i { width: 22px; background: var(--accent); }
.sil.on i { background: var(--lamp); box-shadow: 0 0 8px var(--lamp-glow); }
.sil.on b { color: var(--accent); }
.duas-pecas { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 16px 0; }
.peca { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 20px 8px 14px; background: var(--surface-2); border: 0; border-radius: 18px; cursor: pointer; }
.peca .codigo { height: 34px; }
.peca b { font-size: 17px; }
.peca small { color: var(--muted); }
.regra-num { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 14px 0; }
.regra-num button { display: flex; align-items: center; gap: 12px; padding: 8px 12px; background: var(--surface-2); border: 0; border-radius: 12px; cursor: pointer; }
.regra-num b { font-family: var(--f-tit); font-size: 20px; width: 16px; }
.regra-num .codigo { font-size: 12px; }
.cartao.fim { text-align: center; }
.fim-lista { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 16px 0; }
.fim-lista button { min-width: 52px; height: 52px; padding: 0 10px; border-radius: 14px; border: 1px solid var(--line); background: var(--surface-2); font-family: var(--f-tit); font-size: 24px; cursor: pointer; }

/* perguntas */
.q-ped { font-family: var(--f-tit); font-size: 23px; font-weight: 700; text-align: center; margin: 10px 0 14px; }
.q-play {
  width: 132px; height: 132px; border-radius: 50%; border: 0; cursor: pointer; position: relative; display: grid; place-items: center;
  background: var(--surface); box-shadow: var(--sombra), inset 0 0 0 1px var(--line); margin: 6px 0 4px;
}
.q-play .lampada.grande { width: 92px; height: 92px; }
.q-play-ic { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
.q-play-ic svg { width: 34px; height: 34px; fill: var(--ink-2); opacity: .75; margin-left: 4px; }
.q-play:has(.acesa) .q-play-ic svg { opacity: 0; }
.q-play.estatico { cursor: default; }
.q-sub { margin-bottom: 10px; font-size: 14px; }
.q-codigo { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 30px 24px; margin: 4px 0 18px; box-shadow: var(--sombra); cursor: pointer; max-width: 100%; }
.q-codigo:disabled { cursor: default; }
.q-codigo.palavra { cursor: default; display: flex; justify-content: center; }
.q-codigo.palavra .codtexto { justify-content: center; }
.q-alvo { display: flex; flex-direction: column; align-items: center; margin-bottom: 10px; }
.q-alvo b { font-family: var(--f-tit); font-size: 88px; line-height: 1; }
.q-alvo small { color: var(--muted); font-weight: 700; }
.q-dica { display: flex; flex-direction: column; align-items: center; gap: 6px; background: var(--accent-suave); padding: 10px 16px; border-radius: 14px; margin-bottom: 14px; font-size: 15px; }
.q-dica > :first-child { display: flex; align-items: center; gap: 8px; }
.q-dica:has(.pc) { flex-direction: row; }
.dica-sub { font-size: 13px; color: var(--muted); }
.opcoes { width: 100%; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 8px; }
.op {
  position: relative; min-height: 82px; border-radius: 18px; border: 2px solid var(--line); background: var(--surface); cursor: pointer;
  font-family: var(--f-tit); font-size: 36px; font-weight: 700; display: grid; place-items: center; transition: transform .08s, border-color .15s, background .15s;
}
.op:active { transform: scale(.97); }
.op kbd { position: absolute; top: 8px; left: 10px; font-family: var(--f-txt); font-size: 11px; color: var(--muted); font-weight: 700; }
@media (hover: none) { .op kbd { display: none; } }
.op.certa, .tc.certa { border-color: var(--ok); background: var(--ok-suave); color: var(--ok); }
.op.errada, .tc.errada { border-color: var(--err); background: var(--err-suave); color: var(--err); animation: tremer .3s; }
.op:disabled, .tc:disabled { cursor: default; }
@keyframes tremer { 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
.teclado { width: 100%; display: grid; grid-template-columns: repeat(auto-fill, minmax(56px, 1fr)); gap: 8px; margin-top: 8px; }
.teclado.denso { grid-template-columns: repeat(auto-fill, minmax(46px, 1fr)); gap: 6px; }
.tc { height: 56px; border-radius: 14px; border: 2px solid var(--line); background: var(--surface); font-family: var(--f-tit); font-size: 24px; font-weight: 700; cursor: pointer; }
.teclado.denso .tc { height: 50px; font-size: 21px; }
.montagem {
  width: 100%; min-height: 76px; display: flex; align-items: center; justify-content: center; border-radius: 18px;
  background: var(--surface-2); margin-bottom: 14px; padding: 10px; text-align: center;
}
.montar-bts { display: grid; grid-template-columns: 1fr 1fr 64px; gap: 10px; width: 100%; }
.mb { height: 84px; border-radius: 20px; border: 2px solid var(--line); background: var(--surface); display: grid; place-items: center; cursor: pointer; touch-action: manipulation; }
.mb:active { transform: scale(.96); background: var(--accent-suave); }
.mb.apagar svg { width: 26px; height: 26px; fill: none; stroke: var(--ink-2); stroke-width: 1.9; stroke-linejoin: round; stroke-linecap: round; }
.mb:disabled { opacity: .5; }
.tecla {
  width: min(58vw, 210px); aspect-ratio: 1; border-radius: 50%; border: 0; cursor: pointer; margin: 6px auto 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  background: radial-gradient(circle at 40% 32%, color-mix(in srgb, var(--accent) 70%, #fff) 0%, var(--accent) 55%, var(--accent-forte) 100%);
  color: var(--on-accent); font-weight: 800; letter-spacing: .06em; text-transform: uppercase; font-size: 14px;
  box-shadow: 0 10px 0 color-mix(in srgb, var(--accent-forte) 70%, #000), 0 18px 30px rgba(0, 0, 0, .22);
  touch-action: none; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; transition: transform .05s, box-shadow .05s;
}
.tecla .lampada { width: 30px; height: 30px; border-color: rgba(255, 255, 255, .5); }
.tecla.apertada { transform: translateY(8px); box-shadow: 0 2px 0 color-mix(in srgb, var(--accent-forte) 70%, #000), 0 6px 14px rgba(0, 0, 0, .2); }
.tecla:disabled { opacity: .55; }
.tecla.grande { width: min(64vw, 240px); display: flex; }
.q-form { width: 100%; }
.q-form input, textarea {
  width: 100%; font: inherit; font-size: 22px; padding: 14px 16px; border-radius: 16px; border: 2px solid var(--line);
  background: var(--surface); color: var(--ink); text-transform: uppercase; letter-spacing: .06em; outline: none;
}
.q-form input:focus, textarea:focus { border-color: var(--accent); }
.q-form input { text-align: center; font-family: var(--f-tit); font-weight: 700; }

/* retorno */
.fb { width: 100%; border-radius: 20px; padding: 16px; background: var(--ok-suave); animation: subir .22s ease-out; }
.fb.erro { background: var(--err-suave); }
.fb-tit { font-weight: 800; font-size: 18px; color: var(--ok); margin-bottom: 6px; }
.fb.erro .fb-tit { color: var(--err); }
.fb-alvo { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.fb-alvo b { font-family: var(--f-tit); font-size: 34px; line-height: 1; }
.fb-alvo.palavra b { font-size: 26px; letter-spacing: .05em; }
.fb-ritmo { font-weight: 800; color: var(--ink-2); letter-spacing: .06em; font-size: 14px; }
.fb-pc { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.fb-pc .sil b { font-size: 16px; }
.fb-cod { margin-top: 8px; }
.fb-sua { margin: 10px 0 0; font-size: 14.5px; color: var(--ink-2); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.fb-bts { display: flex; gap: 10px; margin-top: 14px; }
.fb-bts .btn.prim { flex: 1; }
@keyframes subir { from { transform: translateY(16px); opacity: 0; } }

/* resultado */
.resultado { width: 100%; text-align: center; display: flex; flex-direction: column; align-items: center; padding-top: 10px; }
.resultado > p { color: var(--ink-2); max-width: 38ch; }
.anel {
  --p: 0; width: 150px; height: 150px; border-radius: 50%; display: grid; place-content: center; margin: 6px 0 12px;
  background: radial-gradient(closest-side, var(--bg) 78%, transparent 79%), conic-gradient(var(--accent) calc(var(--p) * 1turn), var(--surface-2) 0);
}
.anel b { font-family: var(--f-tit); font-size: 38px; line-height: 1; }
.anel small { color: var(--muted); font-size: 13px; }
.resultado .estrelas { font-size: 30px; margin-bottom: 8px; }
.revisar { width: 100%; text-align: left; margin-top: 14px; display: grid; gap: 8px; }
.rv { display: flex; align-items: center; gap: 12px; padding: 12px 14px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; cursor: pointer; text-align: left; flex-wrap: wrap; }
.rv b { font-family: var(--f-tit); font-size: 24px; min-width: 22px; }
.rv b.pal { font-size: 18px; letter-spacing: .05em; }
.rv-pc { color: var(--muted); font-size: 14px; margin-left: auto; }
.fim-bts { display: grid; gap: 8px; width: 100%; }
.desafio-intro { text-align: center; padding-top: 30px; }
.desafio-intro h2 { font-size: 40px; }
.placar { display: flex; align-items: center; justify-content: space-between; width: 100%; font-weight: 700; }
.placar b { font-family: var(--f-tit); font-size: 26px; margin-left: 6px; }

/* ---------- treinar ---------- */
.treinos { display: grid; gap: 10px; margin-top: 14px; }
.treino {
  display: flex; align-items: center; gap: 14px; padding: 16px; text-align: left; cursor: pointer; text-decoration: none; color: var(--ink);
  background: var(--surface); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--sombra);
}
.treino:disabled { opacity: .5; cursor: default; }
.treino-ic { flex: none; width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--accent-suave); color: var(--accent); font-weight: 800; font-size: 20px; }
.treino-txt { display: flex; flex-direction: column; gap: 2px; }
.treino-txt b { font-size: 16.5px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.treino-txt small { color: var(--muted); font-size: 13.5px; line-height: 1.35; }
.badge { font-size: 11.5px; font-weight: 800; background: var(--accent); color: var(--on-accent); padding: 2px 8px; border-radius: 99px; }
.badge.neutro { background: var(--surface-2); color: var(--ink-2); }
.livre { min-height: 130px; }
.livre-texto { font-family: var(--f-tit); font-size: 30px; font-weight: 700; letter-spacing: .06em; word-break: break-word; min-height: 44px; }
.livre-texto .esp { display: inline-block; width: .5em; }
.livre-atual { min-height: 30px; margin-top: 8px; }
.livre-bts { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin: 26px 0 12px; }
.livre-bts .btn { min-height: 44px; padding: 10px 14px; font-size: 14.5px; }

/* ---------- tabela ---------- */
.segmentos { display: flex; gap: 4px; padding: 4px; background: var(--surface-2); border-radius: 14px; margin-bottom: 14px; overflow-x: auto; scrollbar-width: none; }
.segmentos::-webkit-scrollbar { display: none; }
.segmentos a, .segmentos button {
  flex: 1 0 auto; text-align: center; padding: 9px 12px; border-radius: 10px; text-decoration: none; color: var(--ink-2); font-weight: 700; font-size: 14px;
  border: 0; background: transparent; cursor: pointer; white-space: nowrap;
}
.segmentos .ativo { background: var(--surface); color: var(--ink); box-shadow: 0 1px 3px rgba(0, 0, 0, .1); }
.grade { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
@media (min-width: 520px) { .grade { grid-template-columns: repeat(4, 1fr); } }
.ch-card {
  position: relative; display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 14px 6px 12px; cursor: pointer;
  background: var(--surface); border: 1px solid var(--line); border-radius: 16px; min-height: 118px;
}
.ch-card b { font-family: var(--f-tit); font-size: 30px; line-height: 1; }
.ch-card small { font-size: 12px; color: var(--muted); text-align: center; line-height: 1.3; }
.ch-card:has(.on) { border-color: var(--lamp); }
.regra p:last-child { margin: 0; }
.msgs { display: grid; gap: 8px; }
.msg-card { display: grid; grid-template-columns: 64px 1fr; align-items: center; gap: 4px 12px; padding: 12px 14px; text-align: left; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; cursor: pointer; }
.msg-card b { font-family: var(--f-tit); font-size: 22px; grid-row: span 2; }
.msg-card span { font-weight: 700; }
.arvore-card { padding: 12px 8px; }
.arv { width: 100%; height: auto; max-width: 420px; margin: 0 auto; }
.ramo { fill: none; stroke: var(--line); stroke-width: 2.2; stroke-linecap: round; }
.ramo.rp { stroke-dasharray: 0.1 6; stroke-width: 3.2; }
.ramo.rt { stroke-dasharray: 9 5; }
.ramo.caminho { stroke: var(--accent); }
.no circle { fill: var(--surface); stroke: var(--line); stroke-width: 1.6; }
.no text { font-family: var(--f-tit); font-weight: 700; font-size: 13px; fill: var(--ink); text-anchor: middle; dominant-baseline: central; pointer-events: none; }
.no[data-no] { cursor: pointer; outline: none; }
.no[data-no]:focus-visible circle { stroke: var(--accent); stroke-width: 3; }
.no.raiz circle { fill: var(--accent); stroke: none; }
.no.vazio circle { fill: var(--line); stroke: none; }
.no.caminho circle { fill: var(--accent-suave); stroke: var(--accent); stroke-width: 2.2; }
.arv-leg { font-size: 11px; fill: var(--muted); font-weight: 700; }
.arv-info { display: flex; align-items: center; justify-content: center; gap: 14px; min-height: 52px; margin-top: 6px; }
.arv-info b { font-family: var(--f-tit); font-size: 30px; }
.arv-info span:not(.vazio) { font-weight: 800; color: var(--accent); letter-spacing: .06em; }
.pares { display: grid; gap: 8px; margin-top: 10px; }
@media (min-width: 520px) { .pares { grid-template-columns: 1fr 1fr; } }
.par { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 6px; }
.par button { display: flex; align-items: center; gap: 10px; padding: 8px 10px; background: var(--surface-2); border: 0; border-radius: 12px; cursor: pointer; }
.par button b { font-family: var(--f-tit); font-size: 20px; }
.par-t { display: flex; flex-direction: column; align-items: center; color: var(--accent); font-weight: 800; line-height: 1; }
.par-t small { font-size: 10px; color: var(--muted); font-weight: 700; margin-top: 3px; }

/* ---------- tradutor ---------- */
.rotulo { display: block; font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.trad textarea { font-size: 18px; resize: vertical; min-height: 92px; font-family: var(--f-txt); font-weight: 600; }
#m-in { font-family: ui-monospace, 'SF Mono', Menlo, monospace; letter-spacing: .12em; text-transform: none; }
.trad-saida { margin-top: 14px; padding: 14px; background: var(--surface-2); border-radius: 16px; }
.trad-topo { display: flex; align-items: center; justify-content: space-between; }
.trad-cod { min-height: 34px; padding: 6px 0; }
.trad-pts { font-family: ui-monospace, 'SF Mono', Menlo, monospace; font-size: 13px; color: var(--muted); word-break: break-word; margin-top: 8px; }
.trad-texto { font-family: var(--f-tit); font-weight: 700; font-size: 28px; letter-spacing: .05em; min-height: 40px; word-break: break-word; }
.desconhecido { color: var(--err); }
.trad-bts { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.trad-bts .btn { flex: 1 1 auto; min-height: 46px; padding: 10px 14px; }
.trad-bts .btn.prim { flex: 1 1 100%; }
.vel { margin-top: 18px; display: grid; gap: 8px; }
.vel label { font-size: 14.5px; color: var(--ink-2); }
.teclas-morse { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr 56px; gap: 6px; margin-top: 10px; }
.teclas-morse button { height: 54px; border-radius: 14px; border: 1px solid var(--line); background: var(--surface-2); cursor: pointer; font-weight: 700; font-size: 14px; display: grid; place-items: center; }
.teclas-morse button:active { background: var(--accent-suave); }

/* ---------- progresso ---------- */
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
@media (min-width: 520px) { .tiles { grid-template-columns: repeat(3, 1fr); } }
.tile { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 14px; display: flex; flex-direction: column; gap: 4px; }
.tile b { font-family: var(--f-tit); font-size: 28px; line-height: 1; }
.tile b small { font-size: 15px; color: var(--muted); font-family: var(--f-txt); }
.tile span { font-size: 13px; color: var(--muted); line-height: 1.3; }
.mapa { display: grid; grid-template-columns: repeat(auto-fill, minmax(48px, 1fr)); gap: 6px; }
.mp { height: 54px; border-radius: 12px; border: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; cursor: pointer; gap: 1px; }
.mp b { font-family: var(--f-tit); font-size: 19px; line-height: 1; }
.mp small { font-size: 10px; font-weight: 700; opacity: .85; }
.mp.nv, .legenda i.nv { background: var(--surface-2); color: var(--muted); }
.mp.bom, .legenda i.bom { background: var(--ok-suave); color: var(--ok); }
.mp.medio, .legenda i.medio { background: var(--accent-suave); color: var(--accent); }
.mp.ruim, .legenda i.ruim { background: var(--err-suave); color: var(--err); }
.legenda { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 10px; font-size: 12.5px; color: var(--muted); }
.legenda span { display: flex; align-items: center; gap: 6px; }
.legenda i { width: 12px; height: 12px; border-radius: 4px; display: inline-block; }
.ajustes { display: grid; gap: 18px; }
.aj label { display: flex; align-items: baseline; gap: 6px; font-weight: 600; }
.aj label b { margin-left: auto; font-family: var(--f-tit); font-size: 20px; color: var(--accent); }
.aj label small { color: var(--muted); font-size: 12px; }
.aj p { font-size: 13px; color: var(--muted); margin: 4px 0 0; }
input[type=range] { width: 100%; accent-color: var(--accent); height: 30px; margin: 4px 0 0; }
.chk { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; cursor: pointer; }
.chk input { width: 20px; height: 20px; accent-color: var(--accent); margin: 1px 0 0; flex: none; }
.aj-bts { display: flex; gap: 8px; flex-wrap: wrap; }
.instalar p { color: var(--ink-2); font-size: 15px; }
.zona { margin: 26px 0 8px; text-align: center; }
.rodape-app { text-align: center; color: var(--muted); font-size: 12.5px; }

/* ---------- modal, aviso rápido, festa ---------- */
.modal { position: fixed; inset: 0; z-index: 60; background: rgba(10, 12, 18, .45); display: grid; place-items: end center; padding: 16px; }
.modal[hidden] { display: none; }
.modal-caixa { width: 100%; max-width: 420px; background: var(--surface); border-radius: 22px; padding: 22px 20px calc(env(safe-area-inset-bottom) + 18px); box-shadow: 0 20px 50px rgba(0, 0, 0, .3); animation: subir .2s ease-out; }
.modal-caixa p { color: var(--ink-2); }
.modal-botoes { display: grid; gap: 8px; margin-top: 16px; }
@media (min-width: 600px) { .modal { place-items: center; } }
.toast {
  position: fixed; left: 50%; bottom: calc(var(--nav-h) + env(safe-area-inset-bottom) + 18px); transform: translate(-50%, 20px); z-index: 70;
  background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 12px; font-weight: 600; font-size: 14.5px;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; max-width: calc(100vw - 32px);
}
.toast.vis { opacity: 1; transform: translate(-50%, 0); }
.festa { position: fixed; inset: 0; pointer-events: none; z-index: 80; overflow: hidden; }
.festa i { position: absolute; top: -20px; height: 10px; border-radius: 10px; background: var(--lamp); animation: cair linear forwards; }
.festa i.p { width: 10px; }
.festa i.t { width: 30px; background: var(--accent); }
@keyframes cair { to { transform: translateY(110vh) rotate(var(--giro)); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}
@media (min-width: 700px) {
  h1 { font-size: 32px; }
  .hero { padding: 28px; }
}