/* Pauta. Conceito: folha de caderno. Papel claro, tinta grafite, pauta azul-clara e um único acento:
   o vermelho da linha de margem, que também é a cor de gravar.
   Cantos: botões e campos 8px, cartões 12px, chips em pílula, botão de gravar em círculo. */

:root {
  --papel: #fbfbf9;
  --folha: #ffffff;
  --folha-2: #f5f5f2;
  --tinta: #17191c;
  --tinta-2: #3b3e43;
  --mudo: #6a6d72;
  --linha: #e6e6e1;
  --linha-2: #efefeb;
  --pauta: #dfe7f3;
  --margem: #d6402f;
  --margem-forte: #b83324;
  --margem-fraca: #fdecea;
  --margem-texto: #a1281b;
  --verde-fraco: #edf3ec;
  --verde-texto: #2f6237;
  --sombra: 0 1px 2px rgba(23, 25, 28, 0.04), 0 6px 24px rgba(23, 25, 28, 0.04);
  --f-display: "Bricolage Grotesque", "Geist", system-ui, sans-serif;
  --f-corpo: "Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "Geist Mono", ui-monospace, "SF Mono", monospace;
  --r-ctl: 8px;
  --r-card: 12px;
  --curva: cubic-bezier(0.16, 1, 0.3, 1);
  --topo: 60px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --papel: #121316;
    --folha: #1a1b1f;
    --folha-2: #212227;
    --tinta: #ecece8;
    --tinta-2: #c8c9c5;
    --mudo: #9b9da1;
    --linha: #2b2d32;
    --linha-2: #232429;
    --pauta: #243042;
    --margem: #ff6a57;
    --margem-forte: #ff8574;
    --margem-fraca: #3a1f1c;
    --margem-texto: #ffa294;
    --verde-fraco: #1d2a1f;
    --verde-texto: #9fd3a6;
    --sombra: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 28px rgba(0, 0, 0, 0.25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --papel: #121316; --folha: #1a1b1f; --folha-2: #212227; --tinta: #ecece8; --tinta-2: #c8c9c5; --mudo: #9b9da1;
  --linha: #2b2d32; --linha-2: #232429; --pauta: #243042; --margem: #ff6a57; --margem-forte: #ff8574; --margem-fraca: #3a1f1c;
  --margem-texto: #ffa294; --verde-fraco: #1d2a1f; --verde-texto: #9fd3a6; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
button, a, label, summary, input { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
body {
  margin: 0;
  background: var(--papel);
  color: var(--tinta);
  font: 400 16px/1.6 var(--f-corpo);
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
}
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--margem); outline-offset: 2px; border-radius: 4px; }
.oculto { position: absolute; left: 0; top: 0; width: 1px !important; height: 1px !important; min-height: 0 !important; padding: 0 !important; opacity: 0; overflow: hidden; clip-path: inset(50%); pointer-events: none; }
label:has(> .oculto) { position: relative; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--tinta); color: var(--papel); padding: 8px 12px; border-radius: var(--r-ctl); z-index: 100; }
.skip:focus { left: 8px; }
.mono { font-family: var(--f-mono); }
.ph.grande { font-size: 40px; color: var(--mudo); }

/* ---------- topo ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  height: var(--topo);
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px;
  padding: 0 24px;
  background: color-mix(in srgb, var(--papel) 86%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--linha);
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; justify-self: start; }
.wordmark { font: 800 23px/1 var(--f-display); letter-spacing: -0.04em; }
.nav { display: flex; gap: 4px; align-items: center; }
.nav a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: var(--r-ctl);
  text-decoration: none; color: var(--mudo); font-weight: 500; font-size: 15px;
  transition: background-color .2s var(--curva), color .2s var(--curva);
}
.nav a .ph { font-size: 19px; }
.nav a:hover { color: var(--tinta); background: var(--folha-2); }
.nav a.ativo { color: var(--tinta); background: var(--folha); box-shadow: inset 0 0 0 1px var(--linha); }
.nav .pill-rec { color: var(--margem-texto); background: var(--margem-fraca); font-family: var(--f-mono); font-size: 14px; }
.nav .pill-rec .ph { color: var(--margem); animation: pulso 1.4s ease-in-out infinite; }
.sync { justify-self: end; font-size: 13px; color: var(--mudo); }
.sync a { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; padding: 6px 8px; border-radius: var(--r-ctl); }
.sync a:hover { background: var(--folha-2); color: var(--tinta); }
.sync .ph { font-size: 17px; }
.gira { animation: gira 1s linear infinite; }

main { max-width: 1120px; margin: 0 auto; padding: 40px 24px 96px; outline: none; }

/* ---------- tipografia ---------- */
.display { font: 800 clamp(34px, 5vw, 56px)/1.04 var(--f-display); letter-spacing: -0.035em; margin: 0 0 18px; text-wrap: balance; }
.titulo { font: 700 clamp(28px, 3.4vw, 36px)/1.1 var(--f-display); letter-spacing: -0.03em; margin: 0; }
.lead { font-size: 18px; color: var(--tinta-2); max-width: 46ch; margin: 0; text-wrap: pretty; }
.dica { font-size: 14px; color: var(--mudo); margin: 8px 0 16px; max-width: 70ch; }
.nota { font-size: 13.5px; color: var(--mudo); display: flex; align-items: center; gap: 6px; margin: 12px 0 0; }
.opcional { color: var(--mudo); font-weight: 400; font-size: 13px; margin-left: 4px; }

/* ---------- botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; padding: 0 16px;
  border: 1px solid var(--tinta); border-radius: var(--r-ctl);
  background: var(--tinta); color: var(--papel);
  font-weight: 500; font-size: 15px; text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: transform .16s var(--curva), background-color .2s var(--curva), border-color .2s var(--curva), opacity .2s;
}
.btn .ph { font-size: 18px; }
.btn:hover { background: var(--tinta-2); border-color: var(--tinta-2); }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.btn.sec { background: var(--folha); color: var(--tinta); border-color: var(--linha); }
.btn.sec:hover { border-color: var(--mudo); background: var(--folha); }
.btn.perigo { background: var(--margem); border-color: var(--margem); color: #fff; }
.btn.perigo:hover { background: var(--margem-forte); border-color: var(--margem-forte); }
.btn.perigo.sec { background: var(--folha); color: var(--margem-texto); border-color: var(--linha); }
.btn.grande { min-height: 50px; font-size: 16px; padding: 0 22px; }
.btn.pequeno { min-height: 36px; font-size: 14px; padding: 0 12px; }
.icone-btn {
  display: inline-grid; place-items: center; width: 36px; height: 36px; flex: none;
  border: 1px solid var(--linha); border-radius: var(--r-ctl); background: var(--folha); cursor: pointer;
  transition: transform .16s var(--curva), border-color .2s;
}
.icone-btn:hover { border-color: var(--mudo); }
.icone-btn:active { transform: scale(0.95); }
.icone-btn:disabled { opacity: .35; cursor: not-allowed; }
.icone-btn.forte { background: var(--tinta); color: var(--papel); border-color: var(--tinta); }
.link { background: none; border: 0; padding: 4px 0; color: var(--tinta); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; font-size: 15px; }
.acoes { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

/* ---------- campos ---------- */
.campo { display: grid; gap: 6px; }
.campo label, .campo .label { font-size: 14px; font-weight: 500; color: var(--tinta-2); }
.campo input, .campo textarea, .busca input {
  width: 100%; min-height: 46px; padding: 10px 14px;
  border: 1px solid var(--linha); border-radius: var(--r-ctl);
  background: var(--folha); font-size: 16px;
  transition: border-color .2s, box-shadow .2s;
}
.campo textarea { resize: vertical; line-height: 1.55; }
.campo input::placeholder, .campo textarea::placeholder, .busca input::placeholder { color: var(--mudo); opacity: .8; }
.campo input:focus, .campo textarea:focus, .busca input:focus { outline: none; border-color: var(--tinta-2); box-shadow: 0 0 0 3px color-mix(in srgb, var(--tinta) 10%, transparent); }
.ajuda { font-size: 13px; color: var(--mudo); }
.linha-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.linha-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 16px 0; }
.senha { position: relative; }
.senha input { padding-right: 52px; }
.olho { position: absolute; right: 4px; top: 50%; transform: translateY(-50%); width: 42px; height: 38px; border: 0; background: none; border-radius: 6px; cursor: pointer; color: var(--mudo); font-size: 20px; display: grid; place-items: center; }
.olho:hover { color: var(--tinta); background: var(--folha-2); }
.check { display: flex; gap: 12px; align-items: flex-start; cursor: pointer; font-size: 15px; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--margem); flex: none; }
.check small { display: block; color: var(--mudo); font-size: 13.5px; margin-top: 2px; }
.check a { color: var(--tinta); }
.check.aviso { padding: 12px 14px; border-radius: var(--r-ctl); background: var(--margem-fraca); }
.check.aviso small { color: var(--tinta-2); }
.check.desligado { opacity: .45; cursor: not-allowed; }
.busca { position: relative; flex: 1; min-width: 220px; max-width: 420px; }
.busca .ph { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--mudo); }
.busca input { padding-left: 40px; min-height: 42px; }

.cartao { background: var(--folha); border: 1px solid var(--linha); border-radius: var(--r-card); padding: 28px; }
.pilha { display: grid; gap: 16px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 500; background: var(--folha-2); color: var(--tinta-2); white-space: nowrap; border: 1px solid var(--linha); }
.chip.verde { background: var(--verde-fraco); color: var(--verde-texto); border-color: transparent; }
.chip.vermelho { background: var(--margem-fraca); color: var(--margem-texto); border-color: transparent; }

/* ---------- gravar ---------- */
.gravar { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: start; padding-top: 24px; }
.gravar-texto { position: sticky; top: calc(var(--topo) + 48px); }
.preparo { display: grid; gap: 20px; box-shadow: var(--sombra); }
.soltar {
  display: flex; align-items: center; gap: 14px; padding: 22px; cursor: pointer;
  border: 1.5px dashed var(--linha); border-radius: var(--r-card); background: var(--folha-2);
  color: var(--tinta-2); transition: border-color .2s, background-color .2s;
}
.soltar.pequeno { padding: 14px 16px; border-radius: var(--r-ctl); font-size: 15px; }
.soltar:hover, .soltar.sobre { border-color: var(--margem); background: var(--margem-fraca); }
.soltar span { display: grid; gap: 2px; }
.soltar small { color: var(--mudo); font-size: 13.5px; }
.arquivo-ok { display: flex; align-items: center; gap: 12px; padding: 12px 12px 12px 16px; border: 1px solid var(--linha); border-radius: var(--r-ctl); }
.arquivo-ok > .ph { font-size: 22px; color: var(--margem); }
.arquivo-ok span { flex: 1; display: grid; min-width: 0; }
.arquivo-ok b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; }
.arquivo-ok small { color: var(--mudo); font-size: 13px; }
.btn-gravar {
  display: flex; align-items: center; gap: 16px; width: 100%;
  padding: 14px 22px 14px 14px; border: 0; border-radius: 999px;
  background: var(--tinta); color: var(--papel); cursor: pointer;
  font: 600 18px/1 var(--f-display); letter-spacing: -0.01em;
  transition: transform .16s var(--curva), background-color .2s;
}
.btn-gravar:hover { background: var(--tinta-2); }
.btn-gravar:active { transform: scale(0.985); }
.disco { width: 52px; height: 52px; border-radius: 50%; background: var(--margem); display: grid; place-items: center; box-shadow: inset 0 0 0 4px color-mix(in srgb, #fff 18%, transparent); flex: none; }
.disco::after { content: ""; width: 18px; height: 18px; border-radius: 50%; background: #fff; }

/* gravando */
.gravando { display: grid; grid-template-columns: 380px 1fr; gap: 28px; align-items: start; }
.painel-rec { position: sticky; top: calc(var(--topo) + 24px); background: var(--folha); border: 1px solid var(--linha); border-radius: var(--r-card); padding: 24px; display: grid; gap: 18px; box-shadow: var(--sombra); }
.rec-topo { display: grid; gap: 4px; }
.rec-status { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--margem-texto); }
.pausado .rec-status { color: var(--mudo); }
.ponto { width: 10px; height: 10px; border-radius: 50%; background: var(--margem); animation: pulso 1.4s ease-in-out infinite; }
.rec-aula { font-weight: 600; font-size: 17px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tempo { font: 500 clamp(48px, 7vw, 64px)/1 var(--f-mono); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.pausado .tempo { color: var(--mudo); }
.onda { width: 100%; height: 64px; display: block; }
.controles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.ctl {
  display: grid; justify-items: center; gap: 6px; padding: 12px 6px; cursor: pointer;
  border: 1px solid var(--linha); border-radius: var(--r-ctl); background: var(--folha);
  font-size: 13.5px; font-weight: 500; transition: transform .16s var(--curva), border-color .2s;
}
.ctl .ph { font-size: 22px; }
.ctl b { font-family: var(--f-mono); color: var(--margem-texto); }
.ctl:hover { border-color: var(--mudo); }
.ctl:active { transform: scale(0.97); }
.ctl.parar { background: var(--margem); border-color: var(--margem); color: #fff; }
.ctl.parar:hover { background: var(--margem-forte); }
.slide-atual { display: grid; grid-template-columns: 1fr auto; gap: 10px 12px; align-items: center; padding-top: 16px; border-top: 1px solid var(--linha); }
.slide-atual img { grid-column: 1 / -1; border-radius: 6px; border: 1px solid var(--linha); aspect-ratio: 16/10; object-fit: contain; width: 100%; background: #fff; }
.slide-info { display: grid; min-width: 0; font-size: 14px; }
.slide-info small { color: var(--mudo); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.slide-nav { display: flex; gap: 6px; }
.modos { border: 0; margin: 0; padding: 0; display: grid; gap: 8px; }
.modos legend { font-size: 14px; font-weight: 500; color: var(--tinta-2); margin-bottom: 8px; padding: 0; }
.check.modo { padding: 12px 14px; border: 1px solid var(--linha); border-radius: var(--r-ctl); transition: border-color .2s, background-color .2s; }
.check.modo.marcado { border-color: var(--tinta-2); background: var(--folha-2); }
.check.modo .chip { margin-left: 6px; font-size: 11.5px; padding: 1px 8px; }
.link.pequeno { font-size: 14px; justify-self: start; }
.status-trans { margin: 0; font-size: 14px; color: var(--mudo); }
.aviso-fala { margin: 0; padding: 10px 12px; border-radius: var(--r-ctl); background: var(--margem-fraca); color: var(--margem-texto); font-size: 14px; }

/* folha de caderno */
.folha {
  --l: 34px;
  position: relative; background: var(--folha); border: 1px solid var(--linha); border-radius: var(--r-card);
  min-height: 70vh; max-height: calc(100dvh - var(--topo) - 48px); overflow-y: auto;
  padding: 0 28px 40px 92px;
  background-image:
    linear-gradient(90deg, transparent 74px, var(--margem) 74px, var(--margem) 75.5px, transparent 75.5px),
    repeating-linear-gradient(180deg, transparent 0 calc(var(--l) - 1px), var(--pauta) calc(var(--l) - 1px) var(--l));
  background-attachment: local;
  background-position: 0 44px; /* a primeira linha da pauta fica logo abaixo do cabeçalho de 44px */
}
.folha-topo { position: sticky; top: 0; display: flex; justify-content: space-between; align-items: center; height: 44px; margin: 0 -28px 0 -92px; padding: 0 28px 0 92px; font-size: 13px; color: var(--mudo); background: color-mix(in srgb, var(--folha) 92%, transparent); backdrop-filter: blur(6px); z-index: 1; border-bottom: 1px solid var(--linha-2); }
.folha-topo b { font-family: var(--f-mono); color: var(--tinta); }
.falas { list-style: none; margin: 0; padding: 0; }
.falas li { position: relative; line-height: var(--l); animation: entra .5s var(--curva) both; }
.falas time { position: absolute; left: -84px; width: 64px; text-align: right; font: 12px/var(--l) var(--f-mono); color: var(--mudo); }
.falas p { margin: 0; font-size: 17px; }
.interino { margin: 0; line-height: var(--l); font-size: 17px; color: var(--mudo); min-height: var(--l); }
.vazio-folha { margin: 0; line-height: var(--l); color: var(--mudo); font-style: italic; }

/* ---------- aulas ---------- */
.cabeca { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 24px; }
.aulas > .busca { margin-bottom: 32px; max-width: 520px; }
.grupo { margin-bottom: 36px; }
.grupo-titulo { font: 600 13px/1 var(--f-corpo); text-transform: uppercase; letter-spacing: .08em; color: var(--mudo); margin: 0 0 10px; display: flex; gap: 8px; }
.grupo-titulo span { font-family: var(--f-mono); }
.lista-aulas { list-style: none; margin: 0; padding: 0; border: 1px solid var(--linha); border-radius: var(--r-card); background: var(--folha); overflow: hidden; }
.lista-aulas li + li { border-top: 1px solid var(--linha-2); }
.item-aula { display: grid; grid-template-columns: 52px 1fr auto 20px; gap: 16px; align-items: center; padding: 16px 18px; text-decoration: none; transition: background-color .2s; }
.item-aula:hover { background: var(--folha-2); }
.ia-data { display: grid; justify-items: center; line-height: 1; padding: 8px 0; border-right: 2px solid var(--margem); }
.ia-data b { font: 700 22px/1 var(--f-display); }
.ia-data small { font-size: 12px; color: var(--mudo); text-transform: uppercase; letter-spacing: .04em; margin-top: 4px; }
.ia-corpo { display: grid; min-width: 0; gap: 2px; }
.ia-corpo b { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ia-corpo small { color: var(--mudo); font-size: 14px; }
.ia-chips { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.ia-seta { color: var(--mudo); }
.vazio { display: grid; justify-items: center; text-align: center; gap: 12px; padding: 64px 20px; max-width: 520px; margin: 0 auto; }
.vazio h2 { font: 700 24px/1.2 var(--f-display); letter-spacing: -0.02em; margin: 4px 0 0; }
.vazio p { margin: 0; color: var(--tinta-2); }
.vazio .acoes { justify-content: center; margin-top: 8px; }
.vazio-linha { color: var(--mudo); font-size: 14.5px; margin: 8px 0; }

/* ---------- aula ---------- */
.voltar { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; color: var(--mudo); font-size: 14.5px; margin-bottom: 14px; }
.voltar:hover { color: var(--tinta); }
.aula-cabeca { margin-bottom: 22px; }
.titulo-edit { width: 100%; border: 0; background: none; padding: 2px 0; font: 700 clamp(26px, 3.6vw, 38px)/1.15 var(--f-display); letter-spacing: -0.03em; border-radius: 6px; }
.titulo-edit:hover { background: var(--folha-2); }
.titulo-edit:focus { outline: none; background: var(--folha); box-shadow: 0 0 0 1px var(--linha); }
.aula-acoes { margin: 10px 0 6px; }
.ph.vermelho { color: var(--margem); }
.perigo-texto { color: var(--margem-texto) !important; }
.player-rodape { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 4px 6px 0; font-size: 13px; color: var(--mudo); }
.player-rodape .link { display: inline-flex; align-items: center; gap: 4px; text-decoration: none; }
.linha-aula { display: grid; grid-template-columns: 1fr auto; align-items: center; }
.linha-aula .lixo { margin-right: 14px; opacity: .5; transition: opacity .2s, border-color .2s; }
.linha-aula:hover .lixo, .linha-aula .lixo:focus-visible { opacity: 1; }
@media (hover: none) { .linha-aula .lixo { opacity: 1; } }
.detalhes summary { cursor: pointer; color: var(--mudo); font-size: 15px; list-style: none; display: inline-flex; gap: 8px; align-items: center; padding: 4px 0; }
.detalhes summary::-webkit-details-marker { display: none; }
.detalhes summary:hover { color: var(--tinta); }
.abas { display: flex; gap: 2px; border-bottom: 1px solid var(--linha); margin-bottom: 28px; overflow-x: auto; scrollbar-width: none; }
.abas a { display: inline-flex; align-items: center; gap: 8px; padding: 12px 16px; text-decoration: none; color: var(--mudo); font-weight: 500; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; transition: color .2s, border-color .2s; }
.abas a:hover { color: var(--tinta); }
.abas a.ativa { color: var(--tinta); border-bottom-color: var(--margem); }
.abas .ph { font-size: 18px; }
.painel { animation: entra .4s var(--curva) both; }
.barra-ferr { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.player { position: sticky; top: calc(var(--topo) + 8px); z-index: 5; margin-bottom: 16px; padding: 8px; background: var(--folha); border: 1px solid var(--linha); border-radius: var(--r-card); box-shadow: var(--sombra); }
.player audio { width: 100%; display: block; height: 44px; }

.trans { list-style: none; margin: 0; padding: 0; background: var(--folha); border: 1px solid var(--linha); border-radius: var(--r-card); overflow: hidden; }
.trans li { content-visibility: auto; contain-intrinsic-size: auto 52px; display: grid; grid-template-columns: 70px 1fr auto auto; gap: 14px; align-items: start; padding: 10px 14px 10px 0; border-left: 3px solid transparent; transition: background-color .25s; }
.trans li + li { border-top: 1px solid var(--linha-2); }
.trans li.imp { border-left-color: var(--margem); }
.trans li.agora { background: color-mix(in srgb, var(--margem) 7%, var(--folha)); }
.t { font: 12.5px/1 var(--f-mono); color: var(--mudo); background: none; border: 0; padding: 7px 0 7px 12px; cursor: pointer; text-align: right; font-variant-numeric: tabular-nums; }
.t:hover { color: var(--margem-texto); text-decoration: underline; }
.txt { padding: 3px 6px; border-radius: 6px; line-height: 1.6; outline: none; min-width: 0; overflow-wrap: anywhere; }
.txt:hover { background: var(--folha-2); }
.txt:focus { background: var(--folha); box-shadow: 0 0 0 1px var(--tinta-2); }
.trans .chip { margin-top: 4px; }
.trans .apagar { opacity: 0; width: 30px; height: 30px; }
.trans li:hover .apagar, .trans .apagar:focus-visible { opacity: 1; }

/* organizado */
.org { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.bloco { grid-column: span 6; background: var(--folha); border: 1px solid var(--linha); border-radius: var(--r-card); padding: 28px; }
.bloco h2 { font: 700 20px/1.2 var(--f-display); letter-spacing: -0.02em; margin: 0 0 14px; display: flex; align-items: center; gap: 8px; }
.bloco h3 { font-size: 16px; margin: 0 0 8px; display: flex; gap: 10px; align-items: center; }
.bloco ul { margin: 0; padding-left: 20px; display: grid; gap: 8px; }
.bloco li::marker { color: var(--margem); }
.bloco.resumo { grid-column: span 4; }
.bloco.resumo p { margin: 0 0 12px; font-size: 17px; line-height: 1.7; max-width: 68ch; }
.bloco.destaque { grid-column: span 2; background: var(--margem-fraca); border-color: transparent; }
.bloco.destaque h2 .ph { color: var(--margem); }
.bloco.destaque ul { font-size: 15px; }
.topico + .topico { margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--linha-2); }
.num { font: 600 12px/1 var(--f-mono); width: 26px; height: 26px; display: inline-grid; place-items: center; border-radius: 50%; background: var(--tinta); color: var(--papel); flex: none; }
.conceitos { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 28px; margin: 0; }
.conceitos div { padding: 14px 0; border-top: 1px solid var(--linha-2); }
.conceitos dt { font-weight: 600; margin-bottom: 4px; }
.conceitos dd { margin: 0; color: var(--tinta-2); font-size: 15px; }
.cartas { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.carta { border: 1px solid var(--linha); border-radius: var(--r-ctl); background: var(--folha-2); transition: background-color .2s; }
.carta summary { padding: 14px 16px; cursor: pointer; font-weight: 500; list-style: none; position: relative; padding-right: 40px; }
.carta summary::-webkit-details-marker { display: none; }
.carta summary::after { content: "+"; position: absolute; right: 16px; top: 12px; font: 400 20px/1 var(--f-mono); color: var(--mudo); }
.carta[open] { background: var(--folha); }
.carta[open] summary::after { content: "-"; }
.carta p { margin: 0; padding: 0 16px 16px; color: var(--tinta-2); font-size: 15px; }
.notas { margin-top: 24px; }

/* slides */
.slides-vazio { max-width: 640px; margin: 24px auto; text-align: center; }
.slides-vazio .soltar { flex-direction: column; text-align: center; padding: 48px 24px; }
.slides { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.slide { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 24px; padding: 20px; background: var(--folha); border: 1px solid var(--linha); border-radius: var(--r-card); }
.slide-img { position: relative; align-self: start; position: sticky; top: calc(var(--topo) + 16px); }
.slide-img img { width: 100%; border-radius: 6px; border: 1px solid var(--linha); background: #fff; }
.slide-texto-capa { aspect-ratio: 16/10; display: grid; place-items: center; padding: 20px; text-align: center; border-radius: 6px; background: var(--folha-2); border: 1px solid var(--linha); font: 600 18px/1.3 var(--f-display); color: var(--tinta-2); }
.slide-num { position: absolute; top: 8px; left: 8px; font: 600 12px/1 var(--f-mono); padding: 5px 7px; border-radius: 4px; background: var(--tinta); color: var(--papel); }
.slide-corpo h3 { font: 700 19px/1.25 var(--f-display); letter-spacing: -0.015em; margin: 0 0 10px; }
.slide-corpo h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--mudo); margin: 16px 0 8px; display: flex; gap: 8px; }
.slide-corpo h4 span { font-family: var(--f-mono); }
.slide-txt summary { cursor: pointer; font-size: 14px; color: var(--mudo); }
.slide-txt p { font-size: 14px; color: var(--tinta-2); margin: 8px 0 0; padding: 10px 12px; border-left: 2px solid var(--pauta); }
.notas-slide { margin: 0 0 4px; padding-left: 20px; display: grid; gap: 6px; font-size: 15px; }
.notas-slide li::marker { color: var(--margem); }
.falas-det { margin-top: 12px; }
.falas-det summary { cursor: pointer; font-size: 13.5px; color: var(--mudo); }
.falas-det summary span { font-family: var(--f-mono); }
.falas-det[open] summary { margin-bottom: 6px; }
.explicacao { margin: 0 0 10px; color: var(--tinta-2); max-width: 70ch; }
.aviso-org { display: grid; gap: 10px; padding: 14px; margin: 8px 0 14px; border-radius: var(--r-ctl); background: var(--margem-fraca); }
.aviso-org p { margin: 0; font-size: 14px; color: var(--tinta-2); }
.falas-slide { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.falas-slide li { display: grid; grid-template-columns: 52px 1fr auto; gap: 8px; align-items: start; padding: 6px 0; font-size: 15px; }
.falas-slide .t { padding: 4px 0; text-align: left; }
.mover { display: flex; gap: 4px; opacity: .55; transition: opacity .2s; }
.falas-slide li:hover .mover, .mover:focus-within { opacity: 1; }
.mover .icone-btn { width: 28px; height: 28px; }

/* estudo */
.estudo { display: grid; grid-template-columns: 300px 1fr; gap: 32px; align-items: start; }
.estudo-lado { position: sticky; top: calc(var(--topo) + 24px); display: grid; gap: 4px; }
.estudo-lado h2 { font: 700 22px/1.2 var(--f-display); letter-spacing: -0.02em; margin: 0; }
.opcoes { border: 0; margin: 8px 0 20px; padding: 0; display: grid; gap: 12px; }
.opcoes legend { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--mudo); margin-bottom: 10px; font-weight: 600; }
.baixar { display: grid; gap: 8px; }
.papel {
  position: relative; background: #fff; color: #17191c; border-radius: 4px; padding: 56px 56px 56px 84px;
  box-shadow: 0 0 0 1px var(--linha), 0 18px 50px rgba(23, 25, 28, 0.08);
  background-image: linear-gradient(90deg, transparent 52px, #d6402f 52px, #d6402f 53.5px, transparent 53.5px);
  font-size: 15px; line-height: 1.65; max-width: 820px;
}
.papel-selo { font: 700 11px/1 var(--f-corpo); letter-spacing: .12em; text-transform: uppercase; color: #d6402f; }
.papel h1 { font: 800 32px/1.1 var(--f-display); letter-spacing: -0.03em; margin: 10px 0 6px; }
.papel-meta { color: #6a6d72; font-size: 14px; margin: 0 0 8px; }
.papel h2 { font: 700 19px/1.2 var(--f-display); margin: 32px 0 10px; padding-top: 10px; position: relative; }
.papel h2::before { content: ""; position: absolute; top: 0; left: 0; width: 22px; height: 3px; background: #d6402f; }
.papel h3 { font-size: 16px; margin: 18px 0 6px; }
.papel ul, .papel ol { padding-left: 20px; }
.papel li { margin-bottom: 6px; }
.papel li::marker { color: #d6402f; }
.papel-slide { padding: 16px 0; border-top: 1px solid #efefeb; }
.papel-slide small { font: 600 11px/1 var(--f-mono); color: #d6402f; letter-spacing: .06em; text-transform: uppercase; }
.papel-slide h3 { margin-top: 6px; }
.papel-slide img { border: 1px solid #e6e6e1; border-radius: 4px; max-height: 360px; width: auto; margin: 10px 0; }
.papel-cinza { color: #6a6d72; }
.papel-rotulo { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: #6a6d72; }
.papel-trans { margin: 0 0 4px; font-size: 14px; }
.papel-trans time { font: 12px var(--f-mono); color: #6a6d72; display: inline-block; width: 56px; }

/* conta */
.conta { max-width: 520px; margin: 0 auto; display: grid; gap: 20px; }
.conta-intro { display: grid; gap: 10px; }
.segmentado { display: grid; grid-template-columns: 1fr 1fr; padding: 4px; background: var(--folha-2); border: 1px solid var(--linha); border-radius: 10px; }
.segmentado button { border: 0; background: none; padding: 10px; border-radius: 7px; cursor: pointer; font-weight: 500; color: var(--mudo); transition: background-color .2s, color .2s; }
.segmentado button[aria-selected="true"] { background: var(--folha); color: var(--tinta); box-shadow: 0 0 0 1px var(--linha), 0 1px 2px rgba(0, 0, 0, .04); }
.erro-form { margin: 0; padding: 10px 12px; border-radius: var(--r-ctl); background: var(--margem-fraca); color: var(--margem-texto); font-size: 14.5px; }
.links-conta { margin: 0; text-align: center; }
.conta-email { display: flex; gap: 12px; align-items: center; margin: 0 0 8px; }
.conta-email .ph { font-size: 36px; color: var(--mudo); }
.conta-email span { display: grid; min-width: 0; }
.conta-email small { color: var(--mudo); font-size: 13px; }
.conta-email b { overflow: hidden; text-overflow: ellipsis; }
.uso { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 16px 0 20px; }
.uso div { display: grid; padding: 12px 14px; border-radius: var(--r-ctl); background: var(--folha-2); }
.uso small { color: var(--mudo); font-size: 12.5px; }
.uso b { font-family: var(--f-mono); font-weight: 500; }
details.cartao { padding: 18px 24px; }
details.cartao summary { cursor: pointer; font-weight: 500; }
details.cartao[open] summary { margin-bottom: 16px; }
.perigo-zona summary { color: var(--margem-texto); }
.codigo-caixa { text-align: center; display: grid; gap: 12px; justify-items: center; }
.codigo-caixa .label { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--mudo); }
.codigo { font-size: clamp(20px, 5vw, 28px); letter-spacing: .06em; margin: 0; overflow-wrap: anywhere; }
.rodape-links { display: flex; gap: 18px; justify-content: center; font-size: 13.5px; margin: 8px 0 0; }
.rodape-links a { color: var(--mudo); }

/* avisos */
.toasts { position: fixed; z-index: 50; left: 50%; bottom: 24px; transform: translateX(-50%); display: grid; gap: 8px; width: min(92vw, 420px); pointer-events: none; }
.toast { padding: 12px 16px; border-radius: 10px; background: var(--tinta); color: var(--papel); font-size: 14.5px; box-shadow: 0 10px 30px rgba(0, 0, 0, .18); animation: sobe .35s var(--curva) both; }
.toast.erro { background: var(--margem); color: #fff; }
.toast.sai { opacity: 0; transform: translateY(6px); transition: opacity .4s, transform .4s; }
.ocupado { position: fixed; z-index: 45; left: 50%; top: calc(var(--topo) + 12px); transform: translateX(-50%); display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 12px 18px; border-radius: 10px; background: var(--folha); border: 1px solid var(--linha); box-shadow: var(--sombra); font-size: 14.5px; width: max-content; max-width: 92vw; animation: sobe .35s var(--curva) both; }
.spin { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--linha); border-top-color: var(--margem); animation: gira .8s linear infinite; flex: none; }
.barra { flex-basis: 100%; height: 3px; overflow: hidden; border-radius: 2px; }
.barra span { display: block; height: 100%; background: var(--margem); transform-origin: left; transition: transform .4s var(--curva); }

@keyframes pulso { 50% { opacity: .35; } }
@keyframes gira { to { transform: rotate(360deg); } }
@keyframes entra { from { opacity: 0; transform: translateY(8px); } }
@keyframes sobe { from { opacity: 0; transform: translateY(10px); } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

/* ---------- celular ---------- */
@media (max-width: 960px) {
  .gravar { grid-template-columns: 1fr; gap: 28px; padding-top: 0; }
  .gravar-texto { position: static; }
  @media (max-width: 760px) {
  :root { --topo: 56px; }
  /* sem desfoque aqui: backdrop-filter prenderia a barra fixa de baixo dentro do cabeçalho */
  .topbar { grid-template-columns: 1fr auto; padding: 0 16px; backdrop-filter: none; -webkit-backdrop-filter: none; background: var(--papel); }
  .nav {
    position: fixed; z-index: 30; left: 0; right: 0; bottom: 0;
    display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
    padding: 6px 8px calc(6px + env(safe-area-inset-bottom));
    background: color-mix(in srgb, var(--papel) 92%, transparent);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border-top: 1px solid var(--linha);
  }
  .nav a { flex-direction: column; gap: 2px; font-size: 12px; padding: 6px 4px; }
  .nav a .ph { font-size: 22px; }
  .nav a.ativo { box-shadow: none; background: none; color: var(--margem-texto); }
  .sync span { display: none; }
  main { padding: 24px 16px calc(96px + env(safe-area-inset-bottom)); }
  .toasts { bottom: calc(84px + env(safe-area-inset-bottom)); }
  .cartao { padding: 20px; }
  .linha-2, .linha-3 { grid-template-columns: 1fr; }
  .lead { font-size: 16.5px; }
  .folha { padding: 0 16px 32px 66px; --l: 32px; background-image: linear-gradient(90deg, transparent 54px, var(--margem) 54px, var(--margem) 55.5px, transparent 55.5px), repeating-linear-gradient(180deg, transparent 0 calc(var(--l) - 1px), var(--pauta) calc(var(--l) - 1px) var(--l)); }
  .folha-topo { margin: 0 -16px 0 -66px; padding: 0 16px 0 66px; }
  .folha { background-position: 0 44px; }
  .falas time { left: -62px; width: 48px; font-size: 11px; }
  .falas p, .interino { font-size: 16px; }
  .item-aula { grid-template-columns: 44px 1fr 16px; gap: 12px; padding: 14px; }
  .ia-chips { grid-column: 2; justify-content: flex-start; }
  .ia-seta { grid-row: 1; grid-column: 3; }
  .trans li { grid-template-columns: 54px 1fr auto; gap: 8px; }
  .trans li .chip { grid-column: 2; justify-self: start; }
  .trans .apagar { opacity: 1; grid-row: 1; grid-column: 3; }
  .slide { grid-template-columns: 1fr; padding: 14px; gap: 14px; }
  .slide-img { position: static; }
  .conceitos, .cartas { grid-template-columns: 1fr; }
  .bloco { padding: 20px; }
  .papel { padding: 32px 20px 32px 44px; background-image: linear-gradient(90deg, transparent 28px, #d6402f 28px, #d6402f 29.5px, transparent 29.5px); }
  .papel h1 { font-size: 26px; }
  .barra-ferr .acoes { width: 100%; }
  .barra-ferr .acoes .btn { flex: 1; }
  .busca { max-width: none; }
  .cabeca .acoes { width: 100%; }
  .cabeca .acoes .btn { flex: 1; }
}

/* ----- Cópia das aulas e aviso de mudança de endereço ----- */
.copia { margin-top: 16px; }
.copia h2, .mudanca h2 { margin: 0 0 4px; font-size: 18px; }
.copia label.btn { cursor: pointer; }
.mudanca { margin-bottom: 20px; border-color: var(--margem); border-width: 2px; }
.mudanca ol { margin: 8px 0 16px; padding-left: 20px; display: grid; gap: 6px; font-size: 15px; line-height: 1.45; }