/* Fichário. Papel e grafite, caneta azul para o que é clicável, marca-texto para as matérias e os termos-chave. */
:root {
  color-scheme: light;
  --papel: #f4f5f7;
  --folha: #ffffff;
  --folha-2: #eceef2;
  --linha: #e0e3e8;
  --linha-forte: #c5cad3;
  --grafite: #1b1e24;
  --grafite-2: #4f5664;
  --grafite-3: #6b7280;
  --caneta: #1f4ed8;
  --caneta-fundo: #e7edfc;
  --erro: #c2302a;
  --erro-fundo: #fbeae9;
  --certo: #16794a;
  --certo-fundo: #e2f3e9;
  --botao: #1b1e24;
  --botao-texto: #ffffff;
  /* marca-texto: amarelo, rosa, verde, azul, laranja, lilás */
  --m0: #ffe45c;
  --m1: #ff9dc8;
  --m2: #8fe39b;
  --m3: #8dd0ff;
  --m4: #ffb560;
  --m5: #c9b5ff;
  --marca-forca: 100%;
  --sombra: 0 1px 2px rgb(27 30 36 / 6%), 0 8px 28px rgb(27 30 36 / 7%);
  --raio: 18px;
  --raio-p: 12px;
  --abas: 64px;
  --fonte: 'Atkinson Hyperlegible Next', ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --papel: #111317;
    --folha: #1a1d23;
    --folha-2: #252930;
    --linha: #2b3038;
    --linha-forte: #3d434d;
    --grafite: #eceef2;
    --grafite-2: #b0b6c1;
    --grafite-3: #8e95a1;
    --caneta: #8aabff;
    --caneta-fundo: #1d2945;
    --erro: #ff8b82;
    --erro-fundo: #3a1f1e;
    --certo: #74d6a0;
    --certo-fundo: #173526;
    --botao: #eceef2;
    --botao-texto: #111317;
    --marca-forca: 40%;
    --sombra: 0 1px 2px rgb(0 0 0 / 30%), 0 8px 28px rgb(0 0 0 / 22%);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scrollbar-color: var(--linha-forte) transparent;
}
html.travado {
  overflow: hidden;
}
body {
  margin: 0;
  background: var(--papel);
  color: var(--grafite);
  font: 400 17px/1.5 var(--fonte);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
::selection {
  background: color-mix(in srgb, var(--m0) 75%, transparent);
}
:focus-visible {
  outline: 2.5px solid var(--caneta);
  outline-offset: 2px;
}
button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
}
a {
  color: var(--caneta);
  text-underline-offset: 3px;
}
[hidden] {
  display: none !important;
}
.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.ic {
  width: 22px;
  height: 22px;
  flex: none;
}
.tinta {
  width: 30px;
  height: 16px;
  flex: none;
}

/* marca-texto: o traço por trás das palavras-chave */
.logo-marca,
.hoje strong,
.aba.ativa span,
.lateral-item.ativo span,
.marcando,
.cartao-verso strong,
.previa-verso strong {
  --marca: color-mix(in srgb, var(--mc, var(--m0)) var(--marca-forca), transparent);
  background-image: linear-gradient(var(--marca), var(--marca));
  background-repeat: no-repeat;
  background-size: 100% 78%;
  background-position: 0 72%;
  border-radius: 0.3em 0.45em 0.35em 0.4em / 0.55em 0.5em 0.6em 0.5em;
  padding: 0 0.14em;
  margin: 0 -0.07em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}
.cartao-verso strong {
  animation: marcar 0.55s cubic-bezier(0.22, 0.9, 0.24, 1) both;
  animation-delay: calc(160ms + var(--i, 0) * 120ms);
}
@keyframes marcar {
  from {
    background-size: 0% 78%;
  }
}
.marcando {
  animation: marcar 1.4s cubic-bezier(0.5, 0, 0.3, 1) infinite alternate;
}
.sem-marca {
  font-weight: 700;
}

/* ---------- botões ---------- */
.botao {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--linha-forte);
  background: var(--folha);
  color: var(--grafite);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.2;
  white-space: nowrap;
  transition:
    background-color 0.15s,
    transform 0.1s;
}
.botao .ic {
  width: 20px;
  height: 20px;
}
.botao:active:not(:disabled) {
  transform: scale(0.98);
}
.botao.primario {
  background: var(--botao);
  border-color: var(--botao);
  color: var(--botao-texto);
}
.botao.perigo {
  color: var(--erro);
  border-color: color-mix(in srgb, var(--erro) 45%, transparent);
}
.botao.perigo.cheio {
  background: var(--erro);
  border-color: var(--erro);
  color: var(--folha);
}
.botao:disabled {
  opacity: 0.4;
  cursor: default;
}
.botao.largo {
  width: 100%;
}
.botao.grande {
  min-height: 56px;
  font-size: 18px;
}
.botao-icone {
  width: 44px;
  height: 44px;
  flex: none;
  display: inline-grid;
  place-items: center;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--grafite);
}
.botao-icone.perigo {
  color: var(--erro);
}
.botao-texto {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 2px;
  border: 0;
  background: none;
  color: var(--caneta);
  font-weight: 700;
  font-size: 15px;
}
.botao-texto .ic {
  width: 19px;
  height: 19px;
}
.botao-link {
  border: 0;
  background: none;
  padding: 0;
  color: var(--caneta);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}
@media (hover: hover) {
  .botao:hover:not(:disabled) {
    background: var(--folha-2);
  }
  .botao.primario:hover:not(:disabled) {
    background: color-mix(in srgb, var(--botao) 86%, var(--papel));
  }
  .botao.perigo.cheio:hover {
    background: color-mix(in srgb, var(--erro) 88%, var(--grafite));
  }
  .botao-icone:hover {
    background: var(--folha-2);
  }
  .pasta-linha:hover,
  .ficha-linha:hover,
  .linha-acao:hover {
    background: var(--folha-2);
  }
}

/* ---------- estrutura ---------- */
.conteudo {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: calc(env(safe-area-inset-top) + 4px) max(16px, env(safe-area-inset-right)) calc(var(--abas) + env(safe-area-inset-bottom) + 32px)
    max(16px, env(safe-area-inset-left));
}
.topo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 64px;
  padding: 10px 0 6px;
}
.topo-acoes {
  display: flex;
  align-items: center;
  gap: 6px;
}
.titulo {
  margin: 0;
  font-size: 32px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.voltar {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  min-height: 44px;
  min-width: 0;
  margin-left: -8px;
  padding-right: 8px;
  color: var(--caneta);
  font-weight: 700;
  text-decoration: none;
}
.voltar span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.secao {
  margin: 28px 4px 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--grafite-2);
}
.botoes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* listas de pastas e fichas */
.lista {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--folha);
  border-radius: var(--raio);
  box-shadow: var(--sombra);
  overflow: hidden;
}
.lista > li + li {
  border-top: 1px solid var(--linha);
}
.pasta-linha {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 66px;
  padding: 12px 12px 12px 16px;
  color: inherit;
  text-decoration: none;
}
.pasta-linha > .ic {
  color: var(--grafite-3);
}
.pasta-texto {
  flex: 1;
  min-width: 0;
  display: grid;
}
.pasta-nome {
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pasta-info {
  font-size: 14px;
  color: var(--grafite-2);
}
.pasta-info b {
  color: var(--grafite);
}
.ficha-linha {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 12px 16px;
  border: 0;
  background: none;
  text-align: left;
}
.ficha-frente {
  flex: 1;
  min-width: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 16px;
}
.ficha-quando {
  flex: none;
  font-size: 13px;
  color: var(--grafite-2);
  font-variant-numeric: tabular-nums;
}
.ficha-quando.hoje {
  color: var(--caneta);
  font-weight: 700;
}
.ficha-quando.nova {
  font-weight: 700;
  color: var(--grafite);
}
.linha-acao {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 52px;
  margin-top: 10px;
  padding: 10px 16px;
  border: 1.5px dashed var(--linha-forte);
  border-radius: var(--raio);
  background: none;
  color: var(--grafite-2);
  font-weight: 700;
}

/* início */
.hoje {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 4px 0 20px;
  padding: 12px 12px 12px 18px;
  background: var(--folha);
  border-radius: var(--raio);
  box-shadow: var(--sombra);
}
.hoje p {
  margin: 0;
}
.vazio {
  padding: 28px 22px 24px;
  background: var(--folha);
  border-radius: var(--raio);
  box-shadow: var(--sombra);
}
.vazio h2 {
  margin: 0 0 8px;
  font-size: 22px;
  line-height: 1.25;
  font-weight: 800;
  text-wrap: balance;
}
.vazio p {
  margin: 0 0 18px;
  color: var(--grafite-2);
  max-width: 54ch;
}
.vazio p:last-child {
  margin-bottom: 0;
}
.rodape-conta {
  margin: 36px 4px 0;
  font-size: 14px;
  color: var(--grafite-2);
}

/* pasta */
.pasta-cabeca {
  padding: 2px 0 6px;
}
.pasta-cabeca .titulo {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow-wrap: anywhere;
}
.pasta-cabeca .titulo .tinta {
  width: 40px;
  height: 22px;
}
.resumo {
  margin: 6px 0 16px;
  color: var(--grafite-2);
}
.pasta-cabeca .botoes {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.pasta-cabeca .botoes .primario {
  grid-column: 1 / -1;
}
@media (min-width: 600px) {
  .pasta-cabeca .botoes {
    display: flex;
  }
}

/* abas embaixo (iPhone e iPad em pé) */
.abas {
  position: fixed;
  z-index: 10;
  inset: auto 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 6px max(8px, env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));
  background: var(--folha);
  border-top: 1px solid var(--linha);
}
.aba {
  position: relative;
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 3px;
  min-height: 52px;
  color: var(--grafite-2);
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
}
.aba.ativa {
  color: var(--grafite);
}
.selo {
  position: absolute;
  top: 0;
  left: calc(50% + 6px);
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--erro);
  color: var(--folha);
  font-size: 12px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.lateral {
  display: none;
}

/* barra lateral (iPad deitado e computador) */
@media (min-width: 1024px) {
  .app {
    display: grid;
    grid-template-columns: 290px minmax(0, 1fr);
    min-height: 100dvh;
  }
  .abas {
    display: none;
  }
  .conteudo {
    max-width: 760px;
    padding-bottom: 56px;
  }
  .lateral {
    position: sticky;
    top: 0;
    height: 100dvh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding: calc(env(safe-area-inset-top) + 18px) 14px 16px max(14px, env(safe-area-inset-left));
    background: var(--folha);
    border-right: 1px solid var(--linha);
  }
  .lateral-nav {
    display: grid;
    gap: 2px;
  }
  .lateral-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 44px;
    padding: 0 12px;
    border-radius: 12px;
    color: var(--grafite);
    text-decoration: none;
    font-weight: 700;
  }
  .lateral-item .ic {
    color: var(--grafite-2);
  }
  .lateral-item .selo {
    position: static;
    margin-left: auto;
  }
  .lateral-pastas {
    flex: 1;
  }
  .lateral-pastas h2 {
    margin: 0 12px 6px;
    font-size: 14px;
    color: var(--grafite-2);
  }
  .lateral-pastas ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }
  .lateral-pastas a {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 40px;
    padding: 0 12px 0 calc(12px + var(--nivel, 0) * 18px);
    border-radius: 10px;
    color: var(--grafite);
    text-decoration: none;
    font-size: 16px;
  }
  .lateral-pastas a span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .lateral-pastas a .tinta {
    width: 24px;
    height: 13px;
  }
  .lateral-pastas a.ativo {
    background: var(--folha-2);
    font-weight: 700;
  }
  .lateral-conta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 10px 12px 0;
    border-top: 1px solid var(--linha);
    font-size: 15px;
    color: var(--grafite-2);
  }
  .rodape-conta {
    display: none;
  }
  @media (hover: hover) {
    .lateral-item:hover,
    .lateral-pastas a:hover {
      background: var(--folha-2);
    }
  }
}

/* ---------- estudo ---------- */
.estudo {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  padding: env(safe-area-inset-top) max(16px, env(safe-area-inset-right)) 0 max(16px, env(safe-area-inset-left));
  background: var(--papel);
}
.estudo-topo {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  gap: 8px;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 8px 0 10px;
}
.estudo-info {
  display: grid;
  justify-items: center;
  min-width: 0;
  font-size: 14px;
  color: var(--grafite-2);
}
.estudo-pasta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  color: var(--grafite);
  font-weight: 700;
}
.estudo-pasta span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.estudo-pasta .tinta {
  width: 22px;
  height: 12px;
}
.estudo-conta {
  font-variant-numeric: tabular-nums;
}
.progresso {
  grid-column: 1 / -1;
  height: 4px;
  overflow: hidden;
  border-radius: 2px;
  background: var(--folha-2);
}
.progresso i {
  display: block;
  height: 100%;
  border-radius: 2px;
  background: var(--grafite);
  transition: width 0.35s cubic-bezier(0.22, 0.9, 0.24, 1);
}
/* a pergunta fica parada no lugar quando a resposta aparece embaixo dela */
.estudo-meio {
  overflow-y: auto;
  display: grid;
  align-content: start;
  justify-items: center;
  gap: 10px;
  padding: clamp(10px, 6vh, 72px) 0 14px;
  overscroll-behavior: contain;
}
.estudo.fim .estudo-meio {
  align-content: center;
}
.cartao {
  width: 100%;
  max-width: 680px;
  padding: 30px 24px;
  background: var(--folha);
  border-radius: 24px;
  box-shadow: var(--sombra);
  overflow-wrap: break-word;
}
.cartao[data-acao] {
  cursor: pointer;
}
.cartao-frente {
  font-size: 22px;
  line-height: 1.4;
  font-weight: 700;
}
.cartao-dica {
  margin: 22px 0 0;
  font-size: 14px;
  color: var(--grafite-3);
}
.cartao-dobra {
  margin: 24px -24px 22px;
  border: 0;
  border-top: 1.5px dashed var(--linha-forte);
}
.cartao-verso {
  font-size: 19px;
  line-height: 1.55;
}
.estudo-base {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 10px 0 calc(14px + env(safe-area-inset-bottom));
}
.notas {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}
.nota {
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 2px;
  min-height: 64px;
  padding: 8px 4px;
  border: 0;
  border-radius: 16px;
  font-size: 16px;
  font-weight: 800;
}
.nota small {
  font-size: 13px;
  font-weight: 700;
  opacity: 0.85;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.nota-0 {
  background: var(--erro-fundo);
  color: var(--erro);
}
.nota-1 {
  background: var(--folha-2);
  color: var(--grafite);
}
.nota-2 {
  background: var(--certo-fundo);
  color: var(--certo);
}
.nota-3 {
  background: var(--caneta-fundo);
  color: var(--caneta);
}
.fim-caixa {
  width: 100%;
  max-width: 520px;
  display: grid;
  gap: 14px;
  text-align: center;
  justify-items: center;
}
.fim-numeros {
  display: flex;
  gap: 28px;
  margin: 4px 0 0;
  color: var(--grafite-2);
}
.fim-numeros span {
  display: grid;
}
.fim-numeros strong {
  font-size: 36px;
  line-height: 1.1;
  color: var(--grafite);
  font-variant-numeric: tabular-nums;
}
.fim-texto {
  margin: 0;
  color: var(--grafite-2);
}

/* ---------- conteúdo com formatação ---------- */
.md > :first-child {
  margin-top: 0;
}
.md > :last-child {
  margin-bottom: 0;
}
.md p {
  margin: 0 0 0.65em;
}
.md ul,
.md ol {
  margin: 0.35em 0 0.65em;
  padding-left: 1.3em;
}
.md li + li {
  margin-top: 0.2em;
}
.md h1,
.md h2,
.md h3,
.md h4 {
  margin: 1.1em 0 0.4em;
  font-size: 1.05em;
  line-height: 1.3;
}
.md code {
  padding: 0.1em 0.3em;
  border-radius: 5px;
  background: var(--folha-2);
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.88em;
}
.md hr {
  border: 0;
  border-top: 1px solid var(--linha);
  margin: 1em 0;
}
.md blockquote {
  margin: 0.6em 0;
  padding-left: 12px;
  border-left: 1px solid var(--linha-forte);
  color: var(--grafite-2);
}
.tabela {
  max-width: 100%;
  overflow-x: auto;
  margin: 0.4em 0 0.8em;
}
.md table {
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.4;
}
.md th,
.md td {
  padding: 7px 10px;
  border: 1px solid var(--linha);
  text-align: left;
  vertical-align: top;
}
.md th {
  background: var(--folha-2);
}

/* ---------- conversa ---------- */
.chat {
  display: flex;
  flex-direction: column;
  min-height: calc(100dvh - var(--abas) - env(safe-area-inset-bottom) - env(safe-area-inset-top) - 40px);
}
.mensagens {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 6px 0 18px;
}
.msg.eu {
  align-self: flex-end;
  max-width: 85%;
  padding: 10px 16px;
  border-radius: 20px 20px 6px 20px;
  background: var(--botao);
  color: var(--botao-texto);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.msg.ia {
  max-width: 68ch;
  overflow-wrap: break-word;
}
.msg.ia .md {
  line-height: 1.55;
}
.msg-acoes {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 4px;
}
.msg-erro {
  margin: 6px 0 0;
  color: var(--erro);
  font-size: 15px;
}
.pensando {
  margin: 0;
  color: var(--grafite-2);
}
.pensando i {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-left: 4px;
  border-radius: 50%;
  background: currentColor;
  animation: piscar 1.2s infinite both;
}
.pensando i:nth-child(2) {
  animation-delay: 0.2s;
}
.pensando i:nth-child(3) {
  animation-delay: 0.4s;
}
@keyframes piscar {
  0%,
  80%,
  100% {
    opacity: 0.2;
  }
  40% {
    opacity: 1;
  }
}
.chat-vazio {
  display: grid;
  gap: 14px;
  padding: 8px 0;
}
.chat-vazio > p:first-child {
  margin: 0;
  font-size: 18px;
  max-width: 40ch;
}
.sugestoes {
  display: grid;
  gap: 8px;
}
.sugestao {
  justify-self: start;
  padding: 11px 16px;
  border: 1px solid var(--linha-forte);
  border-radius: 16px;
  background: var(--folha);
  text-align: left;
  font-size: 16px;
}
.nota-ia,
.chat-dica {
  margin: 0;
  font-size: 14px;
  color: var(--grafite-2);
}
.compositor {
  position: sticky;
  bottom: calc(var(--abas) + env(safe-area-inset-bottom));
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 0 12px;
  background: var(--papel);
}
.compositor textarea {
  flex: 1;
  min-height: 48px;
  max-height: 40dvh;
  padding: 12px 18px;
  border-radius: 24px;
  resize: none;
}
.enviar {
  width: 48px;
  height: 48px;
  flex: none;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--botao);
  color: var(--botao-texto);
}
@media (min-width: 1024px) {
  .chat {
    min-height: calc(100dvh - 20px);
  }
  .compositor {
    bottom: 0;
    padding-bottom: 20px;
  }
}

/* ---------- formulários ---------- */
.campo {
  display: grid;
  gap: 6px;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}
.campo > span,
.campo > legend {
  padding: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--grafite-2);
}
.campo > legend {
  margin-bottom: 6px;
}
.campo small {
  font-size: 14px;
  font-weight: 400;
  color: var(--grafite-2);
}
input:not([type='checkbox']):not([type='radio']):not([type='file']),
select,
textarea {
  width: 100%;
  min-height: 48px;
  padding: 11px 14px;
  border: 1px solid var(--linha-forte);
  border-radius: var(--raio-p);
  background: var(--folha);
  color: var(--grafite);
  font-size: 17px;
  caret-color: var(--caneta);
}
textarea {
  resize: vertical;
  line-height: 1.45;
}
select {
  appearance: none;
  padding-right: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
}
input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--caneta);
  box-shadow: 0 0 0 3px var(--caneta-fundo);
}
::placeholder {
  color: var(--grafite-3);
  opacity: 1;
}
.erro {
  margin: 0;
  color: var(--erro);
  font-weight: 700;
  font-size: 15px;
}
.segmentos {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 4px;
  padding: 4px;
  border-radius: 14px;
  background: var(--folha-2);
}
.segmentos > button,
.segmentos > label {
  position: relative;
  min-height: 40px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--grafite-2);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}
.segmentos > [aria-selected='true'],
.segmentos > label:has(input:checked) {
  background: var(--folha);
  color: var(--grafite);
  box-shadow: 0 1px 3px rgb(0 0 0 / 14%);
}
.segmentos > label:has(input:focus-visible) {
  outline: 2.5px solid var(--caneta);
  outline-offset: 1px;
}
.cores {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}
.cor {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  padding: 8px 10px;
  border: 1px solid var(--linha);
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}
.cor input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.cor .tinta {
  width: 26px;
  height: 14px;
}
.cor:has(input:checked) {
  border-color: var(--grafite);
  box-shadow: inset 0 0 0 1px var(--grafite);
}
.cor:has(input:focus-visible) {
  outline: 2.5px solid var(--caneta);
  outline-offset: 2px;
}
.arquivo {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 12px 16px;
  border: 1.5px dashed var(--linha-forte);
  border-radius: var(--raio-p);
  font-weight: 700;
  cursor: pointer;
  overflow: hidden;
}
.arquivo span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.arquivo input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.arquivo:has(input:focus-visible) {
  outline: 2.5px solid var(--caneta);
  outline-offset: 2px;
}
.intervalo {
  display: flex;
  gap: 12px;
  font-size: 15px;
  color: var(--grafite-2);
}
.intervalo label {
  display: flex;
  align-items: center;
  gap: 8px;
}
.intervalo input {
  width: 88px !important;
}
.aviso-perigo {
  flex-basis: 100%;
  margin: 0 0 4px;
  color: var(--erro);
  font-weight: 700;
}
.ficha-agenda,
.dica {
  margin: 0;
  font-size: 15px;
  color: var(--grafite-2);
}

/* ---------- folhas (painéis) ---------- */
.camada {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  align-items: end;
}
.fundo {
  position: absolute;
  inset: 0;
  background: rgb(12 14 18 / 45%);
}
.fundo.abrindo {
  animation: aparecer 0.2s ease-out;
}
.folha {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  width: 100%;
  max-height: calc(100dvh - env(safe-area-inset-top) - 16px);
  background: var(--folha);
  border-radius: 24px 24px 0 0;
  box-shadow: 0 -8px 40px rgb(0 0 0 / 18%);
}
.folha.abrindo {
  animation: subir 0.32s cubic-bezier(0.2, 0.9, 0.25, 1);
}
.folha-topo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px max(10px, env(safe-area-inset-right)) 4px max(22px, env(safe-area-inset-left));
}
.folha-topo h2 {
  margin: 0;
  font-size: 21px;
  font-weight: 800;
  line-height: 1.25;
}
.folha-corpo {
  display: grid;
  align-content: start;
  gap: 18px;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 8px max(22px, env(safe-area-inset-right)) 18px max(22px, env(safe-area-inset-left));
}
.folha-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 12px max(22px, env(safe-area-inset-right)) calc(14px + env(safe-area-inset-bottom)) max(22px, env(safe-area-inset-left));
  border-top: 1px solid var(--linha);
}
.folha-base > .botao-icone.perigo {
  margin-right: auto;
}
@keyframes subir {
  from {
    transform: translateY(100%);
  }
}
@keyframes surgir {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.98);
  }
}
@keyframes aparecer {
  from {
    opacity: 0;
  }
}
@media (min-width: 744px) {
  .camada {
    align-items: center;
    justify-items: center;
    padding: 24px;
  }
  .folha {
    width: min(600px, 100%);
    max-height: min(88dvh, 920px);
    border-radius: 24px;
  }
  .folha.abrindo {
    animation-name: surgir;
  }
  .folha-base {
    padding-bottom: 16px;
  }
}
/* conversa sobre uma ficha: painel à direita quando há espaço */
.camada-chat .folha {
  height: calc(100dvh - env(safe-area-inset-top) - 16px);
}
.chat-corpo {
  gap: 16px;
}
.contexto {
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--folha-2);
  font-size: 15px;
  font-weight: 700;
  color: var(--grafite-2);
}
.camada-chat .folha-base {
  padding-top: 8px;
}
.camada-chat .compositor {
  position: static;
  flex: 1;
  padding: 0;
  background: none;
}
@media (min-width: 1024px) {
  .camada-chat {
    justify-items: end;
    align-items: stretch;
    padding: 0;
  }
  .camada-chat .folha {
    width: 460px;
    height: 100dvh;
    max-height: none;
    border-radius: 0;
  }
  .camada-chat .folha.abrindo {
    animation-name: entrar-lado;
  }
}
@keyframes entrar-lado {
  from {
    transform: translateX(40px);
    opacity: 0;
  }
}

/* gerar */
.gerando {
  display: grid;
  justify-items: center;
  gap: 6px;
  padding: 36px 0 28px;
  text-align: center;
}
.gerando-titulo {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
}
.gerando-tempo {
  margin: 0;
  font-size: 15px;
  color: var(--grafite-2);
  font-variant-numeric: tabular-nums;
}
.gerando-nota {
  margin: 8px 0 0;
  max-width: 36ch;
  font-size: 15px;
  color: var(--grafite-2);
}
.gerada-lista {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.gerada {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) 44px;
  align-items: start;
  gap: 8px;
  padding: 12px 4px 12px 12px;
  border: 1px solid var(--linha);
  border-radius: 16px;
}
.gerada input[type='checkbox'] {
  width: 22px;
  height: 22px;
  margin: 3px 0 0;
  accent-color: var(--grafite);
}
.gerada.fora .gerada-textos {
  opacity: 0.45;
}
.gerada.editando {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 14px;
}
.gerada.editando .botao {
  justify-self: end;
}
.previa-frente {
  font-weight: 700;
}
.previa-verso {
  margin-top: 6px;
  color: var(--grafite);
}

/* ---------- entrar ---------- */
.entrada {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: max(28px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(28px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
}
.entrada-caixa {
  width: min(420px, 100%);
  display: grid;
  gap: 20px;
}
.logo {
  margin: 0;
  font-size: 46px;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.entrada-sub {
  margin: -4px 0 4px;
  color: var(--grafite-2);
  max-width: 36ch;
}
.entrada-form {
  display: grid;
  gap: 16px;
}

/* ---------- avisos ---------- */
#toast {
  position: fixed;
  z-index: 60;
  left: 50%;
  bottom: calc(var(--abas) + env(safe-area-inset-bottom) + 16px);
  max-width: calc(100vw - 32px);
  padding: 11px 18px;
  border-radius: 999px;
  background: var(--botao);
  color: var(--botao-texto);
  font-size: 15px;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 10px);
  transition:
    opacity 0.2s,
    transform 0.2s;
}
#toast.visivel {
  opacity: 1;
  transform: translate(-50%, 0);
}
#aviso {
  position: fixed;
  z-index: 30;
  top: calc(env(safe-area-inset-top) + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  max-width: calc(100vw - 32px);
  padding: 8px 14px;
  border: 1px solid var(--linha-forte);
  border-radius: 14px;
  background: var(--folha);
  box-shadow: var(--sombra);
  font-size: 14px;
  color: var(--grafite-2);
}
@media (min-width: 1024px) {
  #toast {
    bottom: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}