/* Meus Cadernos — a gramática do icequê (papel pontilhado, tinta de 2px,
   sombra dura) com a estante de livros coloridos do caderno original. */

:root {
  --papel: #fdf8ef;
  --branco: #ffffff;
  --tinta: #2b2440;
  --sutil: #6b6385;
  --lavanda: #8b6cf0;
  --manteiga: #fff1b8;
  --menta: #c4f0dc;
  --madeira: #c8906a;
  --perigo: #e2507a;
  --traco: 2px solid var(--tinta);
  --sombra: 3px 3px 0 var(--tinta);
  --sombra-alta: 5px 5px 0 var(--tinta);
  --raio: 14px;
  --palco: #1f1a2e;
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: Nunito, ui-rounded, system-ui, sans-serif;
  font-weight: 600;
  color: var(--tinta);
  background-color: var(--papel);
  background-image: radial-gradient(circle at 1px 1px, rgb(43 36 64 / 0.1) 1px, transparent 0);
  background-size: 22px 22px;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, .marca, .botao { font-family: Fredoka, Nunito, ui-rounded, sans-serif; }
a { color: inherit; }
img { display: block; max-width: 100%; }
.so-leitor { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.sutil { color: var(--sutil); }
.erro { color: var(--perigo); font-weight: 800; margin: 0; }
:focus-visible { outline: 3px solid var(--lavanda); outline-offset: 2px; }

/* ── botões ── */
.botao {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  min-height: 40px; padding: .45rem 1rem;
  font-size: 1rem; font-weight: 600; text-decoration: none; white-space: nowrap;
  color: var(--tinta); background: var(--branco);
  border: var(--traco); border-radius: var(--raio); box-shadow: var(--sombra);
  cursor: pointer; transition: transform .12s, box-shadow .12s, background .12s;
}
.botao:hover { background: var(--manteiga); transform: translate(-1px, -1px); box-shadow: var(--sombra-alta); }
.botao:active { transform: translate(2px, 2px); box-shadow: none; }
.botao:disabled { opacity: .45; cursor: default; transform: none; box-shadow: var(--sombra); background: var(--branco); }
.botao-cheio { background: var(--lavanda); color: #fff; }
.botao-cheio:hover { background: #7a59e8; }
.botao-cheio:disabled { background: var(--lavanda); }
.botao-leve { box-shadow: none; }
.botao-leve:hover { box-shadow: var(--sombra); }
.botao-perigo { background: var(--perigo); color: #fff; }

input, select, textarea {
  font: inherit; color: var(--tinta); background: var(--branco);
  border: var(--traco); border-radius: var(--raio); padding: .6rem .8rem; width: 100%;
}
label { display: grid; gap: .35rem; font-weight: 800; font-size: .9rem; }

/* ── topo ── */
.topo {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  max-width: 1120px; margin: 1rem auto 0; padding: .6rem .8rem .6rem 1rem;
  background: var(--branco); border: var(--traco); border-radius: 20px; box-shadow: var(--sombra);
  width: calc(100% - 2rem);
}
.marca { display: flex; align-items: center; gap: .5rem; font-size: 1.35rem; font-weight: 700; text-decoration: none; }
.topo-acoes { display: flex; gap: .5rem; flex-wrap: wrap; }

/* ── entrar ── */
.tela-entrar { display: grid; place-items: center; padding: 1rem; }
.cartao-entrar {
  width: min(360px, 100%); text-align: center; display: grid; justify-items: center; gap: .6rem;
  padding: 2.2rem 1.8rem; background: var(--branco); border: var(--traco); border-radius: 24px; box-shadow: var(--sombra-alta);
}
.cartao-entrar h1 { margin: .2rem 0 0; font-size: 1.8rem; }
.cartao-entrar p { margin: 0; color: var(--sutil); }
.cartao-entrar form { display: grid; gap: .8rem; width: 100%; margin-top: .6rem; }

/* ── estante ── */
.estante { max-width: 1120px; margin: 2rem auto 4rem; padding: 0 1rem; }
.prateleira {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 2.4rem 1.6rem;
  padding: 1.4rem 1.2rem 0; overflow: hidden; isolation: isolate;
}
.livro {
  position: relative; display: grid; grid-template-columns: 16px 1fr; grid-template-rows: auto auto auto;
  text-decoration: none;
}
/* A tábua: cada livro desenha a sua, larga o bastante pra emendar com a do vizinho. */
.livro-tabua {
  grid-column: 1 / -1; grid-row: 2; height: 14px; margin: 0 -1.6rem; position: relative; z-index: -1;
  background: var(--madeira); border-block: var(--traco);
}
.livro-lombada, .livro-capa { transition: transform .15s; }
.livro:hover .livro-lombada, .livro:hover .livro-capa { transform: translateY(-6px); }
.livro-info { grid-row: 3; }
.livro-lombada { grid-row: 1; background: var(--cor); border: var(--traco); border-right: 0; border-radius: 10px 0 0 10px; filter: brightness(.88); }
.livro-capa {
  grid-row: 1; aspect-ratio: 3 / 4; overflow: hidden; display: grid; place-items: center;
  background: var(--cor); border: var(--traco); border-radius: 0 12px 12px 0; box-shadow: var(--sombra);
}
.livro-capa img { width: 100%; height: 100%; object-fit: cover; }
.livro-vazio { font-family: Fredoka, sans-serif; font-size: 1.1rem; color: var(--tinta); opacity: .55; }
.livro-info { grid-column: 1 / -1; display: grid; gap: .1rem; padding: .7rem .2rem 1.6rem; }
.livro-info strong { font-family: Fredoka, sans-serif; font-size: 1.1rem; line-height: 1.2; }
.livro-info small { color: var(--sutil); }
.estante-vazia { text-align: center; padding: 4rem 1rem; background: var(--branco); border: var(--traco); border-radius: 20px; box-shadow: var(--sombra); }
.estante-vazia p:first-child { font-family: Fredoka, sans-serif; font-size: 1.4rem; margin-top: 0; }

/* ── diálogos ── */
.dialogo { border: var(--traco); border-radius: 20px; box-shadow: var(--sombra-alta); padding: 1.6rem; width: min(420px, calc(100% - 2rem)); background: var(--branco); color: var(--tinta); }
.dialogo::backdrop { background: rgb(43 36 64 / .45); }
.dialogo h2 { margin-top: 0; }
.dialogo form { display: grid; gap: 1rem; }
.dialogo-botoes { display: flex; justify-content: flex-end; gap: .6rem; }

/* ── visualizador ── */
.tela-ver {
  height: 100dvh; min-height: 0; overflow: hidden; display: flex; flex-direction: column;
  background: var(--palco); background-image: none; color: #f6f0ff;
}
.ver-topo {
  display: flex; align-items: center; gap: .8rem; padding: .6rem max(.8rem, env(safe-area-inset-left));
  background: var(--papel); color: var(--tinta); border-bottom: var(--traco);
}
.ver-titulo { margin: 0; font-size: 1.2rem; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ver-contador { font-family: Fredoka, sans-serif; font-weight: 600; padding: .2rem .7rem; border: var(--traco); border-radius: 999px; background: var(--manteiga); white-space: nowrap; }
.ver-acoes { display: flex; gap: .4rem; }
.marca-mini { font-size: 1rem; }
.bemvindo { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .6rem 1rem; background: var(--menta); color: var(--tinta); border-bottom: var(--traco); }
.bemvindo button { background: none; border: 0; font-size: 1.1rem; cursor: pointer; color: inherit; }

.palco { flex: 1; min-height: 0; position: relative; overflow: hidden; touch-action: none; user-select: none; -webkit-user-select: none; outline: none; }
.palco-vazio { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; color: #cfc6e8; padding: 1rem; }
.palco-vazio a { color: #fff; }
.folha {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; padding: clamp(.5rem, 2vw, 1.5rem);
  opacity: 0; transition: opacity .25s; pointer-events: none;
}
.folha.ativa { opacity: 1; pointer-events: auto; }
/* A página inteira sempre cabe: contain no espaço que sobra, nunca recorte. */
.folha img, .folha video {
  max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; flex: 0 1 auto; min-width: 0; min-height: 0;
  border-radius: 8px; box-shadow: 0 0 0 2px rgb(0 0 0 / .4), 0 18px 40px rgb(0 0 0 / .35);
  transform-origin: 0 0; will-change: transform; background: #fff;
}
.folha img { cursor: zoom-in; }
.folha.ampliada img { cursor: grab; }
.folha.arrastando img { cursor: grabbing; }
.folha iframe { width: min(100%, 1100px); aspect-ratio: 16 / 9; max-height: 100%; border: 0; border-radius: 10px; }
.play-live {
  position: absolute; left: 50%; bottom: 1.2rem; transform: translateX(-50%);
  font-family: Fredoka, sans-serif; font-weight: 600; padding: .4rem .9rem; border-radius: 999px;
  border: var(--traco); background: var(--manteiga); color: var(--tinta); cursor: pointer; box-shadow: var(--sombra);
}
.seta {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 2;
  width: 48px; height: 48px; border-radius: 50%; border: var(--traco);
  background: var(--papel); color: var(--tinta); font-size: 1.8rem; line-height: 1; cursor: pointer;
  box-shadow: var(--sombra); display: grid; place-items: center; padding-bottom: 4px;
}
.seta:disabled { opacity: 0; pointer-events: none; }
.seta-ant { left: .8rem; }
.seta-prox { right: .8rem; }
.zoom-dica {
  position: absolute; left: 50%; top: .8rem; transform: translateX(-50%); z-index: 2;
  font-size: .8rem; padding: .25rem .7rem; border-radius: 999px; background: rgb(0 0 0 / .45); color: #fff;
  opacity: 0; transition: opacity .4s; pointer-events: none;
}
.zoom-dica.visivel { opacity: 1; }
.legenda {
  margin: 0; padding: .6rem 1rem; min-height: 0; text-align: center; color: #f6f0ff;
  font-size: 1rem; line-height: 1.45; white-space: pre-line; max-height: 22dvh; overflow: auto;
}
.legenda:empty { display: none; }
.tira {
  display: flex; gap: .5rem; overflow-x: auto; padding: .6rem max(.8rem, env(safe-area-inset-left)) max(.7rem, env(safe-area-inset-bottom));
  background: #171323; border-top: 2px solid #000; scrollbar-width: thin;
}
.tira button {
  flex: 0 0 auto; width: 56px; height: 72px; padding: 0; border-radius: 8px; overflow: hidden; cursor: pointer;
  border: 2px solid transparent; background: #2a2340; color: #fff; font-size: 1.2rem; opacity: .6; transition: opacity .15s;
}
.tira button img { width: 100%; height: 100%; object-fit: cover; }
.tira button[aria-current="true"] { border-color: var(--manteiga); opacity: 1; }
.tira button:hover { opacity: 1; }

/* ── editor ── */
.editor, .convites { max-width: 1120px; margin: 1.6rem auto 4rem; padding: 0 1rem; display: grid; gap: 1.4rem; }
.editor-cabeca { display: flex; align-items: end; gap: 1rem; flex-wrap: wrap; }
.campo-titulo { flex: 1; min-width: 240px; }
.campo-titulo input { font-family: Fredoka, sans-serif; font-size: 1.4rem; font-weight: 600; }
.estado { color: var(--sutil); min-height: 1.4em; }
.soltar {
  display: grid; place-items: center; gap: .3rem; text-align: center; padding: 2rem 1rem; cursor: pointer;
  background: var(--branco); border: 2px dashed var(--tinta); border-radius: 20px; transition: background .15s;
}
.soltar strong { font-family: Fredoka, sans-serif; font-size: 1.2rem; }
.soltar span { color: var(--sutil); font-weight: 600; font-size: .9rem; }
.soltar.por-cima, .soltar:hover { background: var(--manteiga); }
.envios { list-style: none; margin: 0; padding: 0; display: grid; gap: .4rem; }
.envios:empty { display: none; }
.envios li { display: grid; grid-template-columns: 1fr auto; gap: .2rem 1rem; align-items: center; font-size: .9rem; padding: .5rem .8rem; background: var(--branco); border: var(--traco); border-radius: 12px; }
.envios progress { grid-column: 1 / -1; width: 100%; height: 8px; accent-color: var(--lavanda); }
.envios .erro { grid-column: 1 / -1; font-size: .85rem; }
.grade-paginas { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1.2rem; counter-reset: pg; }
.cartao-pagina {
  counter-increment: pg; display: grid; gap: .6rem; padding: .7rem; position: relative;
  background: var(--branco); border: var(--traco); border-radius: 16px; box-shadow: var(--sombra);
}
.cartao-pagina.arrastando { opacity: .4; }
.cartao-pagina.alvo { box-shadow: -6px 0 0 var(--lavanda), var(--sombra); }
.cartao-pagina::before {
  content: counter(pg); position: absolute; top: -.7rem; left: -.7rem; z-index: 1;
  font-family: Fredoka, sans-serif; font-weight: 700; width: 2rem; height: 2rem; display: grid; place-items: center;
  background: var(--manteiga); border: var(--traco); border-radius: 50%;
}
.cartao-pagina .miniatura { aspect-ratio: 4 / 3; border-radius: 10px; overflow: hidden; background: #efe8ff; display: grid; place-items: center; cursor: grab; border: var(--traco); }
.cartao-pagina .miniatura img, .cartao-pagina .miniatura video { width: 100%; height: 100%; object-fit: contain; pointer-events: none; }
.cartao-pagina textarea { resize: vertical; min-height: 3.2rem; font-size: .9rem; font-weight: 600; }
.cartao-pagina .acoes { display: flex; gap: .4rem; }
.cartao-pagina .acoes .botao { min-height: 34px; padding: .25rem .6rem; font-size: .9rem; box-shadow: none; }
.cartao-pagina .acoes .remover { margin-left: auto; }
.selo { font-size: .75rem; font-weight: 800; padding: .1rem .5rem; border-radius: 999px; border: var(--traco); background: var(--menta); justify-self: start; }
.perigo { background: var(--branco); border: var(--traco); border-radius: 16px; padding: .8rem 1rem; }
.perigo summary { cursor: pointer; font-weight: 800; }

/* ── convites ── */
.cartao { background: var(--branco); border: var(--traco); border-radius: 20px; box-shadow: var(--sombra); padding: 1.4rem; display: grid; gap: .8rem; }
.cartao h2 { margin: 0; }
.cartao p { margin: 0; }
.form-convite { display: grid; grid-template-columns: 2fr 2fr 1fr auto; gap: .8rem; align-items: end; }
.link-gerado { display: flex; gap: .6rem; }
.link-gerado input { background: var(--manteiga); }
.lista-convites { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.lista-convites li { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; padding: .6rem .8rem; border: var(--traco); border-radius: 12px; }
.lista-convites li span { flex: 1; min-width: 200px; }
.lista-convites small { color: var(--sutil); }

@media (max-width: 640px) {
  .topo { margin-top: .6rem; width: calc(100% - 1.2rem); }
  .marca { font-size: 1.15rem; }
  .prateleira { grid-template-columns: repeat(2, 1fr); gap: 1.6rem 1rem; padding: 1rem .4rem 0; }
  .topo-acoes .botao { min-height: 36px; padding: .3rem .7rem; font-size: .9rem; }
  .ver-topo { gap: .4rem; padding-inline: .5rem; }
  .ver-titulo { font-size: 1rem; }
  .ver-acoes { gap: .25rem; }
  .ver-acoes .botao { padding: .2rem .5rem; min-height: 34px; min-width: 34px; font-size: .95rem; }
  .ver-acoes .rotulo { display: none; }
  .seta { width: 40px; height: 40px; font-size: 1.5rem; }
  .seta-ant { left: .4rem; }
  .seta-prox { right: .4rem; }
  .form-convite { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before { transition: none !important; }
}