/* Instituto Vinicius Otaviano: interface
   Vidro líquido sobre noite de circuito. Fira Sans para leitura, Bodoni Moda ecoando o monograma VO. */

:root {
  --ink: #07131F;
  --deep: #0C2233;
  --petrol: #123A4F;
  --vo: #42BC7F;
  --vo-deep: #2E9E68;
  --glow: #3CCFE6;
  --signal: #5B8DEF;
  --silver: #D5DAE1;
  --text: #EAF2F7;
  --muted: #A7BBC8;
  --faint: #718A9A;
  --danger: #EF6B6B;
  --warn: #E8B64C;
  --line: rgba(255, 255, 255, .12);
  --r-shell: 30px;
  --r-card: 22px;
  --r-ctl: 14px;
  --r-pill: 999px;
  --font: 'Fira Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --display: 'Bodoni Moda', Didot, 'Bodoni 72', Georgia, serif;
  --ease: cubic-bezier(.2, .8, .2, 1);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font: 400 16px/1.55 var(--font);
  color: var(--text);
  background: var(--ink);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(62vw 52vh at 88% -8%, rgba(60, 207, 230, .24), transparent 62%),
    radial-gradient(58vw 58vh at -12% 108%, rgba(66, 188, 127, .26), transparent 62%),
    radial-gradient(42vw 38vh at 55% 55%, rgba(91, 141, 239, .10), transparent 70%),
    linear-gradient(180deg, #0A1C2C 0%, #07131F 100%);
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background: url(../img/bg-circuit.svg) center top / 1200px 900px repeat;
  opacity: .13;
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 85%);
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 85%);
  pointer-events: none;
}

img, svg, video { max-width: 100%; }
a { color: var(--glow); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #7FE3F1; }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.15; font-weight: 600; }
p { margin: 0 0 1em; }
:focus-visible { outline: 2px solid var(--glow); outline-offset: 3px; border-radius: 6px; }
::selection { background: rgba(60, 207, 230, .35); }

.i { width: 1.2em; height: 1.2em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; vertical-align: -.22em; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.display { font-family: var(--display); font-weight: 600; letter-spacing: -.01em; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.wrap { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.pilha > * + * { margin-top: 20px; }
.linha { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.entre { justify-content: space-between; }
.grade { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ---------------------------------------------------------------- vidro */
.glass {
  position: relative;
  isolation: isolate;
  background: linear-gradient(160deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .035) 58%, rgba(255, 255, 255, .06));
  border-radius: var(--r-card);
  -webkit-backdrop-filter: blur(26px) saturate(175%);
  backdrop-filter: blur(26px) saturate(175%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .22),
    inset 0 -1px 0 rgba(255, 255, 255, .04),
    0 28px 60px -34px rgba(0, 0, 0, .85);
}
.glass::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: radial-gradient(130% 70% at 0% 0%, rgba(255, 255, 255, .10), transparent 52%);
  pointer-events: none;
}
.glass::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(255, 255, 255, .48), rgba(255, 255, 255, .06) 32%, rgba(255, 255, 255, 0) 62%, rgba(60, 207, 230, .28));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.glass-denso { background: linear-gradient(160deg, rgba(20, 48, 68, .78), rgba(8, 22, 34, .72)); }
.topo, .barra-movel, .abas, .aula-barra { background: linear-gradient(160deg, rgba(28, 64, 86, .8), rgba(8, 22, 34, .84)); }
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass { background: rgba(16, 38, 55, .94); }
}
.painel { padding: 24px; }
.painel-g { padding: clamp(22px, 3.2vw, 36px); border-radius: var(--r-shell); }

/* ---------------------------------------------------------------- botões */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 44px; padding: 0 1.2rem;
  border: 0; border-radius: var(--r-pill);
  font: 500 .95rem/1 var(--font); color: var(--text);
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: transform .16s var(--ease), background .2s, box-shadow .2s, color .2s;
}
.btn:hover { color: var(--text); }
.btn:active { transform: scale(.97); }
.btn[disabled], .btn.desabilitado { opacity: .45; pointer-events: none; }
.btn-primario {
  background: linear-gradient(180deg, #57D094, #36A96F);
  color: #03140B;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .5), 0 12px 26px -14px rgba(66, 188, 127, .9);
}
.btn-primario:hover { color: #03140B; background: linear-gradient(180deg, #66DA9F, #3DB378); }
.btn-vidro {
  background: rgba(255, 255, 255, .08);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .2), inset 0 0 0 1px rgba(255, 255, 255, .12);
}
.btn-vidro:hover { background: rgba(255, 255, 255, .14); }
.btn-texto { background: none; color: var(--muted); padding-inline: .6rem; }
.btn-texto:hover { color: var(--text); }
.btn-perigo { background: rgba(239, 107, 107, .14); color: #FFB4B4; box-shadow: inset 0 0 0 1px rgba(239, 107, 107, .4); }
.btn-perigo:hover { background: rgba(239, 107, 107, .24); color: #fff; }
.btn-g { min-height: 52px; padding: 0 1.6rem; font-size: 1.02rem; }
.btn-p { min-height: 34px; padding: 0 .85rem; font-size: .85rem; }
.btn-icone { width: 44px; padding: 0; }
.btn-icone.btn-p { width: 34px; }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 11px; border-radius: var(--r-pill);
  font-size: .8rem; font-weight: 500; color: var(--muted);
  background: rgba(255, 255, 255, .07);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .1);
}
.chip .i { width: 1em; height: 1em; }
.chip-vo { color: #8DE5B7; background: rgba(66, 188, 127, .12); box-shadow: inset 0 0 0 1px rgba(66, 188, 127, .35); }
.chip-glow { color: #9BEAF5; background: rgba(60, 207, 230, .1); box-shadow: inset 0 0 0 1px rgba(60, 207, 230, .32); }
.chip-warn { color: #F4D48C; background: rgba(232, 182, 76, .12); box-shadow: inset 0 0 0 1px rgba(232, 182, 76, .35); }
.chip-perigo { color: #FFB4B4; background: rgba(239, 107, 107, .12); box-shadow: inset 0 0 0 1px rgba(239, 107, 107, .35); }

/* ---------------------------------------------------------------- progresso */
.barra { display: block; height: 8px; border-radius: 99px; background: rgba(255, 255, 255, .08); overflow: hidden; box-shadow: inset 0 1px 2px rgba(0, 0, 0, .3); }
.barra > i { display: block; height: 100%; width: var(--p, 0%); border-radius: inherit; background: linear-gradient(90deg, var(--vo), var(--glow)); box-shadow: 0 0 14px rgba(60, 207, 230, .55); transition: width .6s var(--ease); }
.barra-fina { height: 5px; }

.anel {
  --p: 0; --tam: 108px;
  width: var(--tam); height: var(--tam); flex: none;
  border-radius: 50%;
  display: grid; place-items: center;
  background: conic-gradient(from -90deg, var(--vo), var(--glow) calc(var(--p) * 1%), rgba(255, 255, 255, .08) 0);
  position: relative;
}
.anel::before { content: ''; position: absolute; inset: 7px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #173F57, #0A1D2C 70%); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .15); }
.anel > * { position: relative; text-align: center; line-height: 1; }
.anel b { display: block; font-family: var(--display); font-size: calc(var(--tam) * .36); font-weight: 600; }
.anel small { display: block; font-size: .7rem; color: var(--muted); margin-top: 3px; }
.anel-p { --tam: 58px; }
.anel-p b { font-family: var(--font); font-size: .82rem; font-weight: 600; }

/* ---------------------------------------------------------------- formulários */
.campo { display: grid; gap: 7px; }
.campo + .campo { margin-top: 16px; }
.campo label, .rotulo { font-size: .88rem; font-weight: 500; color: var(--muted); }
.entrada, .campo input:not([type=checkbox]):not([type=radio]):not([type=file]), .campo select, .campo textarea, textarea.entrada {
  width: 100%; min-height: 48px; padding: 12px 15px;
  font: inherit; color: var(--text);
  background: rgba(3, 12, 20, .35);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--r-ctl);
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.campo textarea, textarea.entrada { min-height: 120px; resize: vertical; line-height: 1.55; }
.campo select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 20px) 21px, calc(100% - 15px) 21px; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 40px; }
.campo select option { background: #0C2233; }
.entrada:focus, .campo input:focus, .campo select:focus, .campo textarea:focus, textarea.entrada:focus {
  outline: none; border-color: rgba(60, 207, 230, .7); background: rgba(3, 12, 20, .5);
  box-shadow: 0 0 0 4px rgba(60, 207, 230, .14);
}
.campo .ajuda { font-size: .8rem; color: var(--faint); }
.codigo { font-family: ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace; font-size: .86rem; }
.check { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; font-size: .95rem; }
.check input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--vo); flex: none; }

.aviso { display: flex; gap: 12px; align-items: flex-start; padding: 13px 16px; border-radius: 16px; font-size: .94rem; background: rgba(60, 207, 230, .08); box-shadow: inset 0 0 0 1px rgba(60, 207, 230, .28); }
.aviso .i { margin-top: 2px; color: var(--glow); }
.aviso.sucesso { background: rgba(66, 188, 127, .1); box-shadow: inset 0 0 0 1px rgba(66, 188, 127, .38); }
.aviso.sucesso .i { color: var(--vo); }
.aviso.erro { background: rgba(239, 107, 107, .1); box-shadow: inset 0 0 0 1px rgba(239, 107, 107, .4); }
.aviso.erro .i { color: var(--danger); }
.aviso + .aviso { margin-top: 10px; }

/* ---------------------------------------------------------------- topo público */
.topo {
  position: sticky; top: 14px; z-index: 60;
  width: min(1180px, calc(100% - 28px)); margin: 14px auto 0;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 9px 10px 9px 20px; border-radius: var(--r-pill);
}
.marca { display: inline-flex; align-items: center; }
.marca img { height: 40px; width: auto; display: block; }
.topo nav { display: flex; align-items: center; gap: 4px; }
.topo nav a.lnk { padding: 9px 14px; border-radius: var(--r-pill); color: var(--muted); text-decoration: none; font-weight: 500; font-size: .94rem; }
.topo nav a.lnk:hover { color: var(--text); background: rgba(255, 255, 255, .07); }

/* ---------------------------------------------------------------- página inicial */
.hero { display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(28px, 5vw, 64px); align-items: center; padding: clamp(48px, 8vw, 96px) 0 64px; }
.hero h1 { font-family: var(--display); font-weight: 600; font-size: clamp(2.5rem, 5.4vw, 4.4rem); line-height: 1.02; letter-spacing: -.02em; margin-bottom: 22px; max-width: 14ch; }
.hero .lide { font-size: clamp(1.05rem, 1.6vw, 1.22rem); color: var(--muted); max-width: 50ch; margin-bottom: 30px; }
.hero-provas { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 34px; color: var(--muted); font-size: .92rem; }
.hero-provas span { display: inline-flex; align-items: center; gap: 8px; }
.hero-provas .i { color: var(--vo); }

.vitrine { padding: 16px; border-radius: 34px; }
.vitrine-capa { position: relative; border-radius: 24px; overflow: hidden; aspect-ratio: 16 / 10; }
.vitrine-capa img { width: 100%; height: 100%; object-fit: cover; display: block; }
.vitrine-capa::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(7, 19, 31, .88)); }
.vitrine-capa .sobre { position: absolute; left: 18px; right: 18px; bottom: 16px; z-index: 1; }
.vitrine-capa .sobre strong { display: block; font-family: var(--display); font-size: 1.45rem; line-height: 1.1; }
.mini-trilha { list-style: none; margin: 14px 4px 4px; padding: 0; position: relative; }
.mini-trilha::before { content: ''; position: absolute; left: 15px; top: 16px; bottom: 16px; width: 2px; background: linear-gradient(var(--vo) 0 48%, rgba(255, 255, 255, .12) 48%); }
.mini-trilha li { display: flex; align-items: center; gap: 14px; padding: 8px 0; position: relative; font-size: .95rem; }
.mini-trilha .pt { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; flex: none; background: #0C2233; box-shadow: 0 0 0 2px rgba(255, 255, 255, .14); color: var(--faint); }
.mini-trilha .feito .pt { background: var(--vo); color: #03140B; box-shadow: 0 0 14px rgba(66, 188, 127, .6); }
.mini-trilha .agora .pt { color: var(--glow); box-shadow: 0 0 0 2px var(--glow), 0 0 18px rgba(60, 207, 230, .55); }
.mini-trilha .agora { color: var(--text); font-weight: 500; }
.mini-trilha li:not(.feito):not(.agora) { color: var(--faint); }
.mini-trilha .xp { margin-left: auto; }

.secao { padding: 64px 0; }
.secao-titulo { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 28px; flex-wrap: wrap; }
.secao-titulo h2 { font-family: var(--display); font-size: clamp(1.8rem, 3.2vw, 2.6rem); margin: 0; letter-spacing: -.01em; }
.secao-titulo p { color: var(--muted); margin: 0; max-width: 46ch; }

.curso-card { display: flex; flex-direction: column; overflow: hidden; text-decoration: none; color: var(--text); transition: transform .25s var(--ease); }
a.curso-card:hover { transform: translateY(-3px); color: var(--text); }
.curso-card .capa { aspect-ratio: 16 / 9; position: relative; overflow: hidden; border-radius: var(--r-card) var(--r-card) 0 0; background: linear-gradient(135deg, #123A4F, #0A1D2C); }
.curso-card .capa img { width: 100%; height: 100%; object-fit: cover; display: block; }
.curso-card .capa.vazia { display: grid; place-items: center; }
.curso-card .capa.vazia::before { content: ''; position: absolute; inset: 0; background: url(../img/bg-circuit.svg) center / 700px; opacity: .35; }
.curso-card .capa.vazia img { width: 42%; height: auto; opacity: .9; position: relative; }
.curso-card .capa .chip { position: absolute; top: 12px; left: 12px; -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); background: rgba(7, 19, 31, .55); }
.curso-card .corpo { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.curso-card h3 { font-size: 1.14rem; margin: 0; line-height: 1.25; }
.curso-card p { color: var(--muted); font-size: .93rem; margin: 0; }
.curso-card .meta { display: flex; gap: 14px; flex-wrap: wrap; color: var(--faint); font-size: .84rem; margin-top: auto; padding-top: 6px; }
.curso-card .meta span { display: inline-flex; align-items: center; gap: 6px; }
.curso-card.em-breve { opacity: .82; }

.passos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: passo; }
.passo { padding: 26px; }
.passo::marker { content: none; }
.passo .num { font-family: var(--display); font-size: 2.6rem; line-height: 1; color: transparent; -webkit-text-stroke: 1px rgba(60, 207, 230, .7); display: block; margin-bottom: 14px; }
.passo h3 { font-size: 1.12rem; }
.passo p { color: var(--muted); margin: 0; font-size: .95rem; }

.bloco-cert { display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; }
.bloco-cert .folha { border-radius: 18px; overflow: hidden; box-shadow: 0 40px 70px -30px rgba(0, 0, 0, .9); transform: rotate(-1.5deg); }
.bloco-cert .folha img { display: block; width: 100%; }
.lista-limpa { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.lista-limpa li { display: flex; gap: 12px; align-items: flex-start; }
.lista-limpa .i { color: var(--vo); margin-top: 3px; }

.rodape { padding: 40px 0 120px; color: var(--faint); font-size: .9rem; }
.rodape .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: center; border-top: 1px solid var(--line); padding-top: 28px; }
.rodape a { color: var(--muted); text-decoration: none; }
.rodape a:hover { color: var(--text); }
.redes { display: flex; gap: 8px; }

/* ---------------------------------------------------------------- autenticação */
.auth { min-height: 100vh; display: grid; grid-template-columns: 1fr minmax(360px, 480px); gap: clamp(24px, 5vw, 72px); align-items: center; width: min(1120px, calc(100% - 40px)); margin-inline: auto; padding: 40px 0; }
.auth-lado .marca img { height: 54px; }
.auth-lado h1 { font-family: var(--display); font-size: clamp(2.2rem, 4.4vw, 3.5rem); line-height: 1.04; margin: 34px 0 16px; max-width: 13ch; letter-spacing: -.02em; }
.auth-lado p { color: var(--muted); max-width: 42ch; }
.auth-lado .selo { width: 132px; margin-top: 28px; filter: drop-shadow(0 18px 30px rgba(0, 0, 0, .5)); }
.auth-card { padding: clamp(26px, 4vw, 40px); border-radius: var(--r-shell); }
.auth-card h2 { font-size: 1.5rem; margin-bottom: 6px; }
.auth-card .sub { color: var(--muted); margin-bottom: 24px; }
.auth-card .rodape-form { margin-top: 22px; text-align: center; color: var(--muted); font-size: .93rem; }
.btn-bloco { width: 100%; margin-top: 22px; }

/* ---------------------------------------------------------------- área do aluno */
.app { display: grid; grid-template-columns: 264px minmax(0, 1fr); gap: 22px; padding: 16px; min-height: 100vh; }
.lateral { position: sticky; top: 16px; height: calc(100vh - 32px); display: flex; flex-direction: column; padding: 22px 14px 16px; border-radius: var(--r-shell); }
.lateral .marca { padding: 0 8px 22px; }
.lateral .marca img { height: 44px; }
.menu { display: grid; gap: 3px; }
.menu a { display: flex; align-items: center; gap: 12px; padding: 11px 13px; border-radius: 15px; color: var(--muted); text-decoration: none; font-weight: 500; transition: background .2s, color .2s; }
.menu a:hover { color: var(--text); background: rgba(255, 255, 255, .06); }
.menu a.ativo { color: var(--text); background: rgba(255, 255, 255, .11); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .16), inset 0 0 0 1px rgba(255, 255, 255, .06); }
.menu a.ativo .i { color: var(--vo); }
.menu .sep { height: 1px; background: var(--line); margin: 10px 8px; }
.lateral-rodape { margin-top: auto; }
.nivel-mini { display: flex; gap: 12px; align-items: center; padding: 12px; border-radius: 18px; background: rgba(3, 12, 20, .3); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .08); text-decoration: none; color: var(--text); }
.nivel-mini .n { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; font-family: var(--display); font-weight: 600; font-size: 1.25rem; background: linear-gradient(145deg, var(--vo), var(--glow)); color: #03140B; flex: none; }
.nivel-mini .t { min-width: 0; flex: 1; }
.nivel-mini strong { display: block; font-size: .9rem; }
.nivel-mini small { display: block; color: var(--muted); font-size: .76rem; margin-bottom: 5px; }

.principal { min-width: 0; padding: 10px 6px 60px; }
.cabeca { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; flex-wrap: wrap; margin: 6px 0 26px; }
.cabeca h1 { font-family: var(--display); font-size: clamp(2rem, 3.6vw, 2.9rem); margin: 0; letter-spacing: -.015em; }
.cabeca p { margin: 6px 0 0; color: var(--muted); }
.voltar { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); text-decoration: none; font-size: .92rem; margin-bottom: 12px; }
.voltar:hover { color: var(--text); }

.barra-movel { display: none; }
.abas { display: none; }

.stat { padding: 20px 22px; display: flex; gap: 16px; align-items: center; }
.stat .ic { width: 46px; height: 46px; border-radius: 15px; display: grid; place-items: center; flex: none; background: rgba(255, 255, 255, .07); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .14); }
.stat .ic .i { width: 22px; height: 22px; }
.stat b { display: block; font-size: 1.6rem; line-height: 1.05; font-weight: 600; }
.stat span { color: var(--muted); font-size: .86rem; }
.stat.fogo .ic { color: #FFB066; background: rgba(255, 140, 50, .14); }
.stat.vo .ic { color: var(--vo); background: rgba(66, 188, 127, .14); }
.stat.glow .ic { color: var(--glow); background: rgba(60, 207, 230, .12); }

.grade-nivel { grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); }
.nivel-card { display: flex; gap: 24px; align-items: center; padding: 26px; }
.nivel-card h2 { font-size: 1.35rem; margin-bottom: 4px; }
.nivel-card .xp-texto { display: flex; justify-content: space-between; font-size: .85rem; color: var(--muted); margin: 14px 0 7px; }

.continuar { display: grid; grid-template-columns: 240px 1fr; overflow: hidden; }
.continuar .capa { position: relative; min-height: 180px; }
.continuar .capa img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.continuar .capa::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 50%, rgba(12, 34, 51, .6)); }
.continuar .corpo { padding: 24px 26px; display: flex; flex-direction: column; gap: 10px; justify-content: center; }
.continuar .corpo h3 { font-size: 1.3rem; margin: 0; }
.continuar .prox { color: var(--muted); font-size: .95rem; }
.continuar .prox strong { color: var(--text); font-weight: 500; }

.medalhas-linha { display: flex; gap: 12px; flex-wrap: wrap; }
.medalha-mini { width: 54px; height: 54px; border-radius: 17px; display: grid; place-items: center; background: linear-gradient(145deg, rgba(66, 188, 127, .28), rgba(60, 207, 230, .18)); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .25), 0 0 0 1px rgba(66, 188, 127, .35); color: #BFF3D8; }
.medalha-mini .i { width: 24px; height: 24px; }
.vazio { text-align: center; padding: 34px 20px; color: var(--muted); }
.vazio .i { width: 34px; height: 34px; color: var(--faint); margin-bottom: 10px; }

/* ---------------------------------------------------------------- página do curso */
.curso-topo { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 22px; align-items: stretch; margin-bottom: 36px; }
.curso-hero { overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; min-height: 340px; position: relative; padding: 30px; border-radius: var(--r-shell); }
.curso-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; border-radius: inherit; }
.curso-hero::before { background: linear-gradient(90deg, rgba(7, 19, 31, .94) 0%, rgba(7, 19, 31, .78) 48%, rgba(7, 19, 31, .2) 100%); z-index: -1; }
.curso-hero h1 { font-family: var(--display); font-size: clamp(2rem, 3.8vw, 3.1rem); line-height: 1.04; margin: 12px 0 10px; max-width: 18ch; }
.curso-hero p { color: #C9D8E1; max-width: 60ch; margin: 0; }
.curso-hero .linha { margin-top: 18px; }
.requisitos { padding: 24px; display: flex; flex-direction: column; gap: 14px; }
.requisitos h2 { font-size: 1.08rem; margin: 0; }
.req { display: flex; gap: 12px; align-items: flex-start; font-size: .92rem; }
.req .pt { width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; flex: none; box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .22); color: var(--faint); }
.req .pt .i { width: 14px; height: 14px; }
.req.ok .pt { background: var(--vo); color: #03140B; box-shadow: none; }
.req small { display: block; color: var(--faint); }

/* Trilha em circuito: o elemento-assinatura */
.trilha { list-style: none; margin: 0 auto; padding: 0; max-width: 980px; position: relative; }
.trilha > li { display: grid; grid-template-columns: minmax(0, 1fr) 76px minmax(0, 1fr); align-items: center; position: relative; }
.trilha > li::before { content: ''; position: absolute; left: calc(50% - 1.5px); top: 0; bottom: 0; width: 3px; background: rgba(255, 255, 255, .1); }
.trilha > li.feito::before { background: var(--vo); box-shadow: 0 0 12px rgba(66, 188, 127, .55); }
.trilha > li.meio::before { background: linear-gradient(var(--vo) 0 50%, rgba(255, 255, 255, .1) 50%); }
.trilha > li:first-child::before { top: 50%; }
.trilha > li:last-child::before { bottom: 50%; }

.trilha .modulo { grid-column: 1 / -1; justify-self: center; position: relative; z-index: 1; margin: 34px 0 20px; padding: 14px 26px 13px; text-align: center; border-radius: 16px; min-width: min(360px, 90%); background: linear-gradient(160deg, rgba(24, 58, 80, .95), rgba(10, 28, 42, .95)); }
.trilha .modulo::before, .trilha .modulo::after { content: ''; position: absolute; left: 18px; right: 18px; height: 7px; background: repeating-linear-gradient(90deg, rgba(213, 218, 225, .45) 0 6px, transparent 6px 15px); }
.trilha .modulo::before { top: -7px; border-radius: 2px 2px 0 0; }
.trilha .modulo::after { bottom: -7px; }
.trilha .modulo small { display: block; color: var(--vo); font-weight: 500; font-size: .78rem; letter-spacing: .02em; }
.trilha .modulo strong { display: block; font-family: var(--display); font-size: 1.28rem; font-weight: 600; margin: 2px 0; }
.trilha .modulo span { font-size: .8rem; color: var(--muted); }
.trilha li.mod-feito .modulo { box-shadow: 0 0 0 1px rgba(66, 188, 127, .55), 0 0 28px -6px rgba(66, 188, 127, .6); }

.trilha .ponto { grid-column: 2; grid-row: 1; justify-self: center; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; position: relative; z-index: 1; background: #0B1F2F; box-shadow: 0 0 0 3px rgba(255, 255, 255, .12); color: var(--faint); }
.trilha .ponto .i { width: 20px; height: 20px; }
.trilha .concluida .ponto { background: var(--vo); color: #03140B; box-shadow: 0 0 0 3px rgba(66, 188, 127, .35), 0 0 22px rgba(66, 188, 127, .65); }
.trilha .atual .ponto { color: var(--glow); background: #0C2A3C; box-shadow: 0 0 0 3px var(--glow), 0 0 26px rgba(60, 207, 230, .7); }
.trilha .atual .ponto::after { content: ''; position: absolute; inset: -9px; border-radius: 50%; border: 2px solid rgba(60, 207, 230, .55); animation: pulso 2.2s var(--ease) infinite; }
.trilha .liberada .ponto { color: var(--muted); box-shadow: 0 0 0 3px rgba(60, 207, 230, .35); }
@keyframes pulso { 0% { transform: scale(.85); opacity: .9; } 100% { transform: scale(1.45); opacity: 0; } }

.trilha .aula-card { grid-row: 1; display: flex; gap: 14px; align-items: center; margin: 9px 0; padding: 14px 18px; text-decoration: none; color: var(--text); max-width: 420px; width: 100%; transition: transform .2s var(--ease); }
.trilha .esq .aula-card { grid-column: 1; justify-self: end; }
.trilha .dir .aula-card { grid-column: 3; justify-self: start; }
.trilha a.aula-card:hover { transform: translateY(-2px); color: var(--text); }
.trilha .aula-card .trace { position: absolute; top: 50%; width: 30px; height: 2px; background: rgba(255, 255, 255, .16); }
.trilha .esq .trace { left: 100%; }
.trilha .dir .trace { right: 100%; }
.trilha .aula-card .trace::after { content: ''; position: absolute; top: -3px; width: 8px; height: 8px; border-radius: 50%; background: #0B1F2F; box-shadow: 0 0 0 2px rgba(255, 255, 255, .25); }
.trilha .esq .trace::after { left: -4px; }
.trilha .dir .trace::after { right: -4px; }
.trilha .concluida .trace { background: rgba(66, 188, 127, .7); }
.trilha .concluida .trace::after { box-shadow: 0 0 0 2px var(--vo); }
.trilha .atual .trace { background: rgba(60, 207, 230, .8); }
.trilha .atual .aula-card { box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22), 0 0 0 1px rgba(60, 207, 230, .5), 0 20px 50px -24px rgba(60, 207, 230, .5); }
.trilha .bloqueada .aula-card { opacity: .5; cursor: not-allowed; }
.aula-card .tipo-ic { width: 40px; height: 40px; border-radius: 13px; display: grid; place-items: center; flex: none; background: rgba(255, 255, 255, .07); color: var(--muted); }
.aula-card .txt { min-width: 0; flex: 1; }
.aula-card .txt strong { display: block; font-weight: 500; line-height: 1.3; }
.aula-card .txt small { display: flex; gap: 10px; color: var(--faint); font-size: .8rem; margin-top: 3px; flex-wrap: wrap; }
.aula-card .xp { font-size: .78rem; font-weight: 600; color: #8DE5B7; white-space: nowrap; }
.concluida .aula-card .xp { color: var(--faint); text-decoration: line-through; }
.trilha .fim .ponto { width: 64px; height: 64px; background: transparent; box-shadow: none; }
.trilha .fim .ponto img { width: 64px; filter: grayscale(1) opacity(.5); }
.trilha .fim.pronto .ponto img { filter: drop-shadow(0 0 18px rgba(60, 207, 230, .7)); }
.trilha .fim .aula-card { grid-column: 3; justify-self: start; }

/* ---------------------------------------------------------------- leitor de aula */
body.foco .app { grid-template-columns: minmax(0, 1fr); }
body.foco .lateral { display: none; }
.aula-barra { position: sticky; top: 12px; z-index: 40; display: flex; align-items: center; gap: 14px; padding: 8px 10px 8px 12px; border-radius: var(--r-pill); margin-bottom: 20px; }
.aula-barra .titulo-curso { min-width: 0; flex: 1; }
.aula-barra .titulo-curso strong { display: block; font-size: .92rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.aula-barra .titulo-curso .barra { margin-top: 5px; }
.aula-barra .pos { font-size: .82rem; color: var(--muted); white-space: nowrap; }

.leitor { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 22px; align-items: start; width: min(1180px, 100%); margin: 0 auto; }
.leitura { padding: clamp(22px, 4.5vw, 56px); border-radius: var(--r-shell); background: linear-gradient(170deg, rgba(18, 44, 62, .72), rgba(7, 19, 31, .7)); }
.leitura-cabeca { margin-bottom: 28px; }
.leitura-cabeca .mod { color: var(--vo); font-weight: 500; font-size: .9rem; }
.leitura-cabeca h1 { font-family: var(--display); font-size: clamp(2rem, 4.2vw, 3.2rem); line-height: 1.05; letter-spacing: -.015em; margin: 8px 0 14px; }
.leitura-cabeca .linha { color: var(--muted); font-size: .88rem; }

.player { position: sticky; bottom: 14px; z-index: 30; display: flex; align-items: center; gap: 10px; padding: 8px 14px 8px 8px; border-radius: var(--r-pill); margin: 34px 0 0; background: linear-gradient(160deg, rgba(30, 66, 90, .93), rgba(9, 25, 38, .95)); }
.player .tocar { width: 48px; height: 48px; border-radius: 50%; border: 0; display: grid; place-items: center; cursor: pointer; background: linear-gradient(180deg, #57D094, #36A96F); color: #03140B; flex: none; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .5), 0 8px 20px -8px rgba(66, 188, 127, .9); }
.player .tocar .i { width: 20px; height: 20px; }
.player .ctl { width: 36px; height: 36px; border-radius: 50%; border: 0; background: none; color: var(--muted); display: grid; place-items: center; cursor: pointer; flex: none; }
.player .ctl:hover { color: var(--text); background: rgba(255, 255, 255, .08); }
.player .trilho { flex: 1; min-width: 60px; display: grid; gap: 3px; }
.player .trilho .rot { display: flex; justify-content: space-between; font-size: .74rem; color: var(--muted); }
.player input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 18px; background: transparent; cursor: pointer; margin: 0; }
.player input[type=range]::-webkit-slider-runnable-track { height: 5px; border-radius: 9px; background: linear-gradient(90deg, var(--vo) 0 var(--p, 0%), rgba(255, 255, 255, .14) var(--p, 0%)); }
.player input[type=range]::-moz-range-track { height: 5px; border-radius: 9px; background: rgba(255, 255, 255, .14); }
.player input[type=range]::-moz-range-progress { height: 5px; border-radius: 9px; background: var(--vo); }
.player input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 15px; height: 15px; border-radius: 50%; background: #fff; margin-top: -5px; box-shadow: 0 0 0 4px rgba(66, 188, 127, .3); }
.player input[type=range]::-moz-range-thumb { width: 15px; height: 15px; border: 0; border-radius: 50%; background: #fff; }
.player .vel { border: 0; background: rgba(255, 255, 255, .08); color: var(--text); border-radius: 99px; font: 600 .78rem var(--font); padding: 7px 10px; cursor: pointer; flex: none; }
.player .fonte { font-size: .72rem; color: var(--faint); white-space: nowrap; }

.aula-lateral { position: sticky; top: 84px; padding: 18px 12px; max-height: calc(100vh - 100px); overflow: auto; }
.aula-lateral h2 { font-size: .95rem; padding: 0 8px; margin-bottom: 10px; }
.aula-lateral .mod-bloco + .mod-bloco { margin-top: 14px; }
.aula-lateral .mod-bloco > small { display: block; padding: 0 8px 6px; color: var(--faint); font-size: .76rem; }
.aula-lateral a, .aula-lateral span.bloq { display: flex; gap: 10px; align-items: center; padding: 8px; border-radius: 12px; color: var(--muted); text-decoration: none; font-size: .88rem; line-height: 1.3; }
.aula-lateral a:hover { background: rgba(255, 255, 255, .06); color: var(--text); }
.aula-lateral a.aqui { background: rgba(60, 207, 230, .12); color: var(--text); }
.aula-lateral span.bloq { opacity: .45; }
.aula-lateral .p { width: 20px; height: 20px; border-radius: 50%; flex: none; display: grid; place-items: center; box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .22); }
.aula-lateral .p .i { width: 12px; height: 12px; }
.aula-lateral .concluida .p { background: var(--vo); color: #03140B; box-shadow: none; }

.concluir { margin-top: 44px; padding: 24px; display: flex; gap: 18px; align-items: center; justify-content: space-between; flex-wrap: wrap; border-radius: var(--r-card); background: rgba(66, 188, 127, .08); box-shadow: inset 0 0 0 1px rgba(66, 188, 127, .3); }
.concluir h3 { margin: 0 0 3px; font-size: 1.1rem; }
.concluir p { margin: 0; color: var(--muted); font-size: .92rem; }
.nav-aulas { display: flex; justify-content: space-between; gap: 12px; margin-top: 18px; flex-wrap: wrap; }

/* prosa das aulas */
.prosa { max-width: 72ch; font-size: 1.07rem; line-height: 1.72; color: #DCE7EE; }
.prosa > * { margin-top: 0; margin-bottom: 0; }
.prosa > * + * { margin-top: 1.1em; }
.prosa h2 { font-family: var(--display); font-size: 1.85rem; font-weight: 600; color: var(--text); margin-top: 2em; letter-spacing: -.01em; }
.prosa h3 { font-size: 1.2rem; color: var(--text); margin-top: 1.8em; }
.prosa h4 { font-size: 1rem; color: var(--text); margin: 0 0 .4em; }
.prosa strong { color: var(--text); font-weight: 600; }
.prosa .lide { font-size: 1.18rem; color: var(--text); line-height: 1.6; }
.prosa .lide b { color: var(--vo); font-weight: 500; }
.prosa ul, .prosa ol { padding-left: 1.3em; }
.prosa li + li { margin-top: .45em; }
.prosa li::marker { color: var(--vo); }
.prosa .atitudes { list-style: none; padding: 0; display: grid; gap: 12px; counter-reset: at; }
.prosa .atitudes li { counter-increment: at; margin: 0; padding: 16px 18px 16px 60px; position: relative; border-radius: 18px; background: rgba(255, 255, 255, .045); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .08); }
.prosa .atitudes li::before { content: counter(at); position: absolute; left: 16px; top: 15px; width: 30px; height: 30px; border-radius: 10px; display: grid; place-items: center; font: 600 .9rem var(--font); background: rgba(66, 188, 127, .16); color: #8DE5B7; }
.prosa .checklist { list-style: none; padding: 0; }
.prosa .checklist li { padding-left: 32px; position: relative; }
.prosa .checklist li::before { content: ''; position: absolute; left: 2px; top: 5px; width: 18px; height: 18px; border-radius: 6px; box-shadow: inset 0 0 0 1.5px rgba(66, 188, 127, .7); }
.prosa .callout { padding: 16px 20px; border-radius: 4px 18px 18px 4px; background: rgba(60, 207, 230, .07); border-left: 3px solid var(--glow); }
.prosa .callout.alerta { background: rgba(232, 182, 76, .08); border-left-color: var(--warn); }
.prosa .callout.nota { background: rgba(255, 255, 255, .04); border-left-color: var(--faint); font-size: .97rem; color: var(--muted); }
.prosa .callout > :first-child { margin-top: 0; }
.prosa .callout > * + * { margin-top: .6em; }
.prosa .msg { position: relative; padding: 14px 18px; border-radius: 18px 18px 18px 5px; background: rgba(66, 188, 127, .09); box-shadow: inset 0 0 0 1px rgba(66, 188, 127, .32); font-size: 1.02rem; color: var(--text); }
.prosa .msg::before { content: attr(data-rotulo); display: block; font-size: .78rem; font-weight: 600; color: #8DE5B7; margin-bottom: 4px; }
.prosa .msg.cliente { background: rgba(255, 255, 255, .06); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .14); border-radius: 18px 18px 5px 18px; }
.prosa .msg.cliente::before { color: var(--muted); }
.prosa .msg.evite { background: rgba(239, 107, 107, .08); box-shadow: inset 0 0 0 1px rgba(239, 107, 107, .38); }
.prosa .msg.evite::before { color: #FFB4B4; }
.prosa .msg.nota-interna { background: rgba(232, 182, 76, .08); box-shadow: inset 0 0 0 1px rgba(232, 182, 76, .35); border-radius: 14px; font-size: .96rem; }
.prosa .msg.nota-interna::before { color: #F4D48C; }
.prosa .comparar { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.prosa .comparar > * { margin: 0; }
.prosa figure { margin: 1.6em 0; }
.prosa figure img { display: block; width: 100%; height: auto; border-radius: 20px; box-shadow: 0 24px 50px -28px rgba(0, 0, 0, .9); cursor: zoom-in; }
.prosa figcaption { font-size: .86rem; color: var(--faint); margin-top: 10px; }
.prosa .tabela { overflow-x: auto; border-radius: 18px; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .1); }
.prosa table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.prosa th { text-align: left; font-weight: 600; color: var(--text); background: rgba(255, 255, 255, .06); padding: 12px 14px; }
.prosa td { padding: 12px 14px; border-top: 1px solid rgba(255, 255, 255, .08); vertical-align: top; }
.prosa td:first-child { color: var(--text); font-weight: 500; }
.prosa .num-dir td:not(:first-child), .prosa .num-dir th:not(:first-child) { text-align: right; font-variant-numeric: tabular-nums; }

.pratique { margin: 1.8em 0; padding: 20px 22px; border-radius: 20px; background: linear-gradient(160deg, rgba(91, 141, 239, .12), rgba(60, 207, 230, .05)); box-shadow: inset 0 0 0 1px rgba(91, 141, 239, .35); }
.pratique > h4 { display: flex; align-items: center; gap: 8px; color: #B7CCFA; font-size: .92rem; margin: 0 0 8px; }
.pratique > p { margin: 0 0 12px; color: var(--text); }
.pratique textarea { width: 100%; min-height: 110px; padding: 12px 14px; border-radius: 14px; border: 1px solid rgba(255, 255, 255, .15); background: rgba(3, 12, 20, .45); color: var(--text); font: inherit; font-size: .98rem; resize: vertical; }
.pratique textarea:focus { outline: none; border-color: rgba(91, 141, 239, .8); box-shadow: 0 0 0 4px rgba(91, 141, 239, .15); }
.pratique .estado { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; gap: 10px; font-size: .82rem; color: var(--faint); flex-wrap: wrap; }
.pratique .estado .ok { color: #8DE5B7; }

details.orientacao { margin: 1.2em 0; border-radius: 18px; background: rgba(66, 188, 127, .06); box-shadow: inset 0 0 0 1px rgba(66, 188, 127, .25); }
details.orientacao > summary { cursor: pointer; list-style: none; padding: 14px 18px; font-weight: 500; color: #8DE5B7; display: flex; align-items: center; gap: 10px; }
details.orientacao > summary::-webkit-details-marker { display: none; }
details.orientacao > summary::before { content: ''; width: 9px; height: 9px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(-45deg); transition: transform .2s; }
details.orientacao[open] > summary::before { transform: rotate(45deg); }
details.orientacao > div { padding: 0 18px 18px; }
details.orientacao > div > * + * { margin-top: .8em; }

.calc { margin: 1.6em 0; padding: 22px; border-radius: 22px; background: linear-gradient(160deg, rgba(66, 188, 127, .1), rgba(60, 207, 230, .05)); box-shadow: inset 0 0 0 1px rgba(66, 188, 127, .3); }
.calc h4 { display: flex; align-items: center; gap: 8px; margin: 0 0 14px; }
.calc .campos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.calc label { display: grid; gap: 6px; font-size: .82rem; color: var(--muted); }
.calc input { min-height: 44px; padding: 8px 12px; border-radius: 12px; border: 1px solid rgba(255, 255, 255, .15); background: rgba(3, 12, 20, .45); color: var(--text); font: inherit; }
.calc .resultado { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.calc .resultado div { padding: 14px; border-radius: 16px; background: rgba(3, 12, 20, .35); }
.calc .resultado small { display: block; color: var(--muted); font-size: .78rem; }
.calc .resultado b { display: block; font-size: 1.35rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.calc .resultado .destaque b { color: #8DE5B7; }
.calc .nota { font-size: .8rem; color: var(--faint); margin-top: 12px; }

/* avaliação */
.questao { padding: 24px; }
.questao + .questao { margin-top: 16px; }
.questao .enun { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 16px; }
.questao .enun .n { width: 34px; height: 34px; border-radius: 11px; display: grid; place-items: center; flex: none; font-weight: 600; background: rgba(60, 207, 230, .12); color: #9BEAF5; }
.questao .enun p { margin: 4px 0 0; font-size: 1.06rem; font-weight: 500; }
.opcoes { display: grid; gap: 9px; }
.opcao { display: flex; gap: 12px; align-items: center; padding: 12px 14px; border-radius: 15px; cursor: pointer; background: rgba(255, 255, 255, .04); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .1); transition: background .15s, box-shadow .15s; }
.opcao:hover { background: rgba(255, 255, 255, .08); }
.opcao input { position: absolute; opacity: 0; pointer-events: none; }
.opcao .letra { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; flex: none; font-weight: 600; font-size: .86rem; box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .25); color: var(--muted); }
.opcao:has(input:checked), .opcao.marcada { background: rgba(60, 207, 230, .1); box-shadow: inset 0 0 0 1.5px rgba(60, 207, 230, .7); }
.opcao:has(input:checked) .letra, .opcao.marcada .letra { background: var(--glow); color: #03140B; box-shadow: none; }
.opcao:has(input:focus-visible) { outline: 2px solid var(--glow); outline-offset: 2px; }
.opcao.certa { background: rgba(66, 188, 127, .12); box-shadow: inset 0 0 0 1.5px rgba(66, 188, 127, .75); }
.opcao.certa .letra { background: var(--vo); color: #03140B; box-shadow: none; }
.opcao.errada { background: rgba(239, 107, 107, .1); box-shadow: inset 0 0 0 1.5px rgba(239, 107, 107, .7); }
.opcao.errada .letra { background: var(--danger); color: #1a0505; box-shadow: none; }
.resultado-q { margin-top: 14px; padding: 12px 14px; border-radius: 14px; background: rgba(255, 255, 255, .05); font-size: .93rem; color: var(--muted); }
.resultado-q strong { color: var(--text); }

.placar { display: flex; gap: 26px; align-items: center; padding: 28px; flex-wrap: wrap; }
.placar h2 { font-family: var(--display); font-size: 2rem; margin: 0 0 6px; }
.placar p { margin: 0; color: var(--muted); }

.entrega { padding: 22px; }
.entrega + .entrega { margin-top: 14px; }
.entrega h3 { font-size: 1.05rem; margin-bottom: 4px; }
.entrega .dica { color: var(--muted); font-size: .9rem; margin-bottom: 12px; }
.rubrica { width: 100%; border-collapse: separate; border-spacing: 0 8px; }
.rubrica th { text-align: left; font-size: .82rem; color: var(--muted); font-weight: 500; padding: 0 8px; }
.rubrica td { padding: 0 4px; vertical-align: stretch; }
.rubrica td:first-child { font-weight: 600; padding-right: 14px; white-space: nowrap; }
.nivel-op { display: block; height: 100%; padding: 10px 12px; border-radius: 13px; cursor: pointer; font-size: .86rem; line-height: 1.35; color: var(--muted); background: rgba(255, 255, 255, .04); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .1); }
.nivel-op input { position: absolute; opacity: 0; }
.nivel-op b { display: block; color: var(--text); font-size: .78rem; margin-bottom: 3px; }
.nivel-op:has(input:checked) { background: rgba(66, 188, 127, .12); color: var(--text); box-shadow: inset 0 0 0 1.5px rgba(66, 188, 127, .75); }
.nivel-op:has(input:focus-visible) { outline: 2px solid var(--glow); outline-offset: 2px; }
.lado-a-lado { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.resposta-aluno { white-space: pre-wrap; padding: 14px 16px; border-radius: 14px; background: rgba(3, 12, 20, .4); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .1); font-size: .95rem; }

/* conquistas e ranking */
.medalhas { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.medalha { padding: 22px 20px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.medalha .emblema { width: 76px; height: 76px; margin-bottom: 8px; display: grid; place-items: center; border-radius: 24px; transform: rotate(45deg); background: linear-gradient(145deg, rgba(66, 188, 127, .5), rgba(60, 207, 230, .35)); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .35), 0 0 30px -6px rgba(66, 188, 127, .7); }
.medalha .emblema .i { transform: rotate(-45deg); width: 30px; height: 30px; color: #E6FFF1; }
.medalha h3 { font-size: 1rem; margin: 6px 0 0; }
.medalha p { font-size: .86rem; color: var(--muted); margin: 0; }
.medalha small { color: var(--faint); font-size: .76rem; }
.medalha.travada .emblema { background: rgba(255, 255, 255, .05); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .12); }
.medalha.travada .emblema .i { color: var(--faint); }
.medalha.travada h3 { color: var(--muted); }

.tabela-wrap { overflow-x: auto; }
.tabela { width: 100%; border-collapse: collapse; font-size: .93rem; }
.tabela th { text-align: left; color: var(--muted); font-weight: 500; font-size: .82rem; padding: 12px 14px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tabela td { padding: 13px 14px; border-bottom: 1px solid rgba(255, 255, 255, .06); vertical-align: middle; }
.tabela tr:last-child td { border-bottom: 0; }
.tabela tr.eu td { background: rgba(60, 207, 230, .08); }
.tabela .num { text-align: right; font-variant-numeric: tabular-nums; }
.posicao { width: 34px; height: 34px; border-radius: 11px; display: grid; place-items: center; font-weight: 600; background: rgba(255, 255, 255, .06); }
.p1 .posicao { background: linear-gradient(145deg, #F3D27A, #C99A2E); color: #2A1C00; }
.p2 .posicao { background: linear-gradient(145deg, #E9EEF3, #A7B1BD); color: #16202A; }
.p3 .posicao { background: linear-gradient(145deg, #E7A774, #A8653A); color: #2A1405; }
.pessoa { display: flex; align-items: center; gap: 12px; }
.avatar { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; font-weight: 600; flex: none; background: linear-gradient(135deg, var(--vo), var(--glow)); color: #03140B; }

.xp-lista { list-style: none; padding: 0; margin: 0; }
.xp-lista li { display: flex; justify-content: space-between; gap: 12px; padding: 11px 4px; border-bottom: 1px solid rgba(255, 255, 255, .06); font-size: .92rem; }
.xp-lista li:last-child { border-bottom: 0; }
.xp-lista b { color: #8DE5B7; font-weight: 600; white-space: nowrap; }

/* toasts */
.toasts { position: fixed; top: 16px; right: 16px; z-index: 200; display: grid; gap: 10px; width: min(360px, calc(100% - 32px)); }
.toast { display: flex; gap: 12px; align-items: center; padding: 12px 14px; border-radius: 20px; animation: entra .5s var(--ease) both; background: linear-gradient(160deg, rgba(34, 72, 96, .86), rgba(10, 28, 42, .9)); }
.toast.sai { animation: sai .35s var(--ease) forwards; }
.toast .ic { width: 40px; height: 40px; border-radius: 13px; display: grid; place-items: center; flex: none; background: linear-gradient(145deg, var(--vo), var(--glow)); color: #03140B; }
.toast .ic .i { width: 20px; height: 20px; }
.toast strong { display: block; font-size: .95rem; }
.toast span { display: block; font-size: .82rem; color: var(--muted); }
.toast.nivel .ic { background: linear-gradient(145deg, #F3D27A, #E0A93A); }
@keyframes entra { from { opacity: 0; transform: translateY(-12px) scale(.96); } to { opacity: 1; transform: none; } }
@keyframes sai { to { opacity: 0; transform: translateX(20px); } }

.lightbox { position: fixed; inset: 0; z-index: 300; display: grid; place-items: center; padding: 20px; background: rgba(3, 10, 16, .82); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); cursor: zoom-out; }
.lightbox img { max-height: 92vh; max-width: min(1200px, 100%); border-radius: 18px; }

/* admin */
.admin-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 20px; }
.admin-form .campo + .campo { margin-top: 0; }
.admin-form .largo { grid-column: 1 / -1; }
.editor-html { min-height: 460px !important; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .86rem !important; line-height: 1.5 !important; }
.acoes { display: flex; gap: 8px; flex-wrap: wrap; }
.status { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; background: var(--faint); }
.status.publicado { background: var(--vo); box-shadow: 0 0 8px var(--vo); }
.status.em_breve { background: var(--warn); }
.snippet { display: block; padding: 10px 12px; border-radius: 12px; background: rgba(3, 12, 20, .5); white-space: pre-wrap; word-break: break-all; }

/* ---------------------------------------------------------------- responsivo */
@media (max-width: 1080px) {
  .leitor { grid-template-columns: minmax(0, 1fr); }
  .aula-lateral { display: none; }
  .aula-lateral.aberta { display: block; position: fixed; inset: 70px 12px auto 12px; max-height: calc(100vh - 90px); z-index: 80; }
  .curso-topo { grid-template-columns: 1fr; }
  .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1081px) { .so-movel-lat { display: none !important; } }

@media (max-width: 900px) {
  .app { grid-template-columns: minmax(0, 1fr); padding: 0 12px; gap: 0; }
  .lateral { display: none; }
  .principal { padding: 8px 2px 120px; }
  body.foco .principal { padding-bottom: 40px; }
  .barra-movel { display: flex; position: sticky; top: 10px; z-index: 60; align-items: center; justify-content: space-between; padding: 8px 10px 8px 16px; border-radius: var(--r-pill); margin: 10px 0 18px; }
  body.foco .barra-movel { display: none; }
  .barra-movel .marca img { height: 34px; }
  .abas { display: flex; position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 70; justify-content: space-around; padding: 7px; border-radius: 28px; padding-bottom: calc(7px + env(safe-area-inset-bottom) / 2); }
  body.foco .abas { display: none; }
  .abas a { display: grid; justify-items: center; gap: 2px; padding: 6px 8px; min-width: 58px; border-radius: 18px; color: var(--muted); text-decoration: none; font-size: .68rem; font-weight: 500; }
  .abas a .i { width: 22px; height: 22px; }
  .abas a.ativo { color: var(--text); background: rgba(255, 255, 255, .12); }
  .abas a.ativo .i { color: var(--vo); }
  .hero, .bloco-cert { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
  .auth { grid-template-columns: 1fr; padding: 24px 0 40px; }
  .auth-lado h1 { margin-top: 22px; font-size: 2.1rem; }
  .auth-lado .selo, .auth-lado p.extra { display: none; }
  .g3, .passos, .grade-nivel { grid-template-columns: 1fr; }
  .grade-nivel .g2 { grid-template-columns: 1fr 1fr; gap: 12px !important; }
  .grade-nivel .stat { flex-direction: column; align-items: flex-start; }
  .leitura { padding: 22px 18px; border-radius: 24px; }
  .calc { padding: 16px; }
  .curso-hero::before { background: linear-gradient(180deg, rgba(7, 19, 31, .35) 0%, rgba(7, 19, 31, .94) 62%); }
  .curso-hero { min-height: 380px; padding: 22px; }
  .g2 { grid-template-columns: 1fr; }
  .continuar { grid-template-columns: 1fr; }
  .continuar .capa { min-height: 150px; }
  .topo nav a.lnk { display: none; }
  .admin-form, .lado-a-lado { grid-template-columns: 1fr; }
  .rubrica, .rubrica tbody, .rubrica tr, .rubrica td { display: block; }
  .rubrica thead { display: none; }
  .rubrica td { padding: 3px 0; }
  .rubrica td:first-child { padding-top: 14px; }

  .trilha > li { grid-template-columns: 52px minmax(0, 1fr); }
  .trilha > li::before { left: 24.5px; }
  .trilha .ponto { grid-column: 1; width: 40px; height: 40px; }
  .trilha .esq .aula-card, .trilha .dir .aula-card, .trilha .fim .aula-card { grid-column: 2; justify-self: stretch; max-width: none; }
  .trilha .esq .trace { left: auto; right: 100%; }
  .trilha .esq .trace::after { left: auto; right: -4px; }
  .trilha .aula-card .trace { width: 12px; }
  .trilha .modulo { justify-self: stretch; margin: 26px 0 16px; min-width: 0; }
  .trilha .fim .ponto { width: 48px; height: 48px; }
  .trilha .fim .ponto img { width: 48px; }
  .player { bottom: 10px; gap: 6px; padding-right: 10px; }
  .player .fonte, .player .ctl.opcional { display: none; }
  .prosa .comparar { grid-template-columns: 1fr; }
  .calc .campos, .calc .resultado { grid-template-columns: 1fr; }
  .g4 { grid-template-columns: 1fr 1fr; }
  .stat { padding: 16px; gap: 12px; }
  .stat b { font-size: 1.3rem; }
  .nivel-card { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

@media print {
  body::before, body::after, .lateral, .abas, .barra-movel, .player, .aula-lateral, .aula-barra { display: none !important; }
}