/* ==========================================================================
   Plataforma de estudos -- camada visual.

   Carrega depois de app.css e é a única fonte de estilo das telas do plano
   de estudos. Tudo aqui sai das variáveis abaixo: mexeu no bloco :root,
   mudou o sistema inteiro.
   ========================================================================== */

:root {
    /* Cores das modalidades: o código de cores das sessões. Suaves, para não gritar. */
    --m-estudo: #2f6fed;
    --m-estudo-soft: #eaf1ff;
    --m-estudo-ink: #1f4fb8;

    --m-revisao: #7c5cd6;
    --m-revisao-soft: #f1edfd;
    --m-revisao-ink: #5b3fb0;

    --m-exercicio: #0f9d78;
    --m-exercicio-soft: #e6f6f1;
    --m-exercicio-ink: #0a6f55;

    --m-atrasado: #d64545;
    --m-atrasado-soft: #fdecec;
    --m-atrasado-ink: #a32d2d;

    --ink: var(--fg);
    --ink-2: var(--fg-muted);
    --ink-3: var(--fg-subtle);
    --line: var(--border);
    --paper: var(--surface);
    --paper-2: var(--surface-2);

    --r-sm: 8px;
    --r-md: 10px;
    --r-lg: 12px;

    --lift: none;
    --lift-lg: 0 8px 24px -12px rgba(20, 35, 65, .22);
}

body { background: var(--bg); color: var(--ink); }

/* ------------------------------------------------------------- estrutura -- */

.content { max-width: 1460px; }

.pagina { display: grid; gap: 1.25rem; }

.pagina-topo {
    display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between;
    gap: 1rem; margin-bottom: .25rem;
}
.pagina-topo h1 { display: flex; align-items: center; gap: .6rem; font-size: clamp(1.4rem, 2.2vw, 1.9rem); letter-spacing: -.03em; color: var(--ink); }
.pagina-topo h1 svg { width: 26px; height: 26px; color: var(--brand); }
.pagina-topo p { margin: .35rem 0 0; color: var(--ink-2); font-size: .92rem; max-width: 70ch; }
.pagina-topo .acoes { display: flex; flex-wrap: wrap; gap: .5rem; }

.bloco {
    background: var(--paper); border: 1px solid var(--line);
    border-radius: var(--r-lg); box-shadow: var(--lift); overflow: hidden;
}
.bloco__topo {
    display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
    gap: 1rem; padding: 1.15rem 1.4rem; border-bottom: 1px solid var(--line);
}
.bloco__topo h2 { font-size: 1.05rem; letter-spacing: -.02em; }
.bloco__topo p { margin: .2rem 0 0; color: var(--ink-2); font-size: .85rem; }
.bloco__corpo { padding: 1.4rem; }
.bloco__corpo--flush { padding: 0; }
.bloco__rodape { padding: 1rem 1.4rem; border-top: 1px solid var(--line); background: var(--paper-2); }

.aviso-guia {
    display: flex; gap: .9rem; padding: 1.1rem 1.25rem; border-radius: var(--r-md);
    border: 1px solid var(--line); border-left: 4px solid var(--brand);
    background: var(--paper-2);
}
.aviso-guia svg { width: 22px; height: 22px; color: var(--brand); }
.aviso-guia strong { display: block; margin-bottom: .2rem; color: var(--ink); }
.aviso-guia p { margin: 0; color: var(--ink-2); font-size: .9rem; }
.aviso-guia--alerta { border-left-color: var(--warning); background: var(--warning-soft); }
.aviso-guia--alerta svg { color: var(--warning); }
.aviso-guia--perigo { border-left-color: var(--m-atrasado); background: var(--danger-soft); }
.aviso-guia--perigo svg { color: var(--m-atrasado); }

/* ------------------------------------------------------------ navegação -- */

.nav__sub { display: grid; gap: 1px; margin: .1rem 0 .35rem .95rem; padding-left: .65rem; border-left: 2px solid var(--line); }
.nav__sub a {
    display: block; padding: .42rem .6rem; border-radius: 7px;
    color: var(--ink-2); font-size: .82rem; font-weight: 560;
}
.nav__sub a:hover { background: var(--paper-2); color: var(--brand); text-decoration: none; }
.nav__sub a.is-active { color: var(--brand); background: var(--brand-soft); font-weight: 700; }

.abas-plano { display: flex; flex-wrap: wrap; gap: .4rem; }
.abas-plano > a {
    padding: .5rem .85rem; border: 1px solid var(--line); border-radius: 99px;
    background: var(--paper); color: var(--ink-2); font-size: .82rem; font-weight: 620;
}
.abas-plano > a:hover { border-color: var(--brand); color: var(--brand); text-decoration: none; }
.abas-plano > a.is-active { background: var(--brand); border-color: var(--brand); color: #fff; }
.abas-mais { position: relative; }
.abas-mais > summary { display: inline-flex; align-items: center; gap: .25rem; padding: .5rem .85rem; border: 1px solid var(--line); border-radius: 99px;
    background: var(--paper); color: var(--ink-2); font-size: .82rem; font-weight: 620; cursor: pointer; list-style: none; }
.abas-mais > summary::-webkit-details-marker { display: none; }
.abas-mais > summary svg { width: 14px; height: 14px; }
.abas-mais > summary.is-active { border-color: var(--brand); color: var(--brand); }
.abas-mais .mais__menu a.is-active { color: var(--brand); font-weight: 600; }

/* --------------------------------------------------------------- painel -- */

.painel { display: grid; grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr); gap: 1.25rem; align-items: start; }
.painel > * { min-width: 0; }

.cartao-aluno {
    position: relative; padding: 1.5rem; color: var(--ink);
    border-radius: var(--r-lg); border: 1px solid var(--line); background: var(--paper);
}
.cartao-aluno__saudacao { display: flex; align-items: center; gap: 1rem; }
.cartao-aluno__avatar {
    display: grid; place-items: center; flex: 0 0 56px; height: 56px;
    border-radius: 16px; background: var(--brand-soft); color: var(--brand);
    font-size: 1.35rem; font-weight: 700;
}
.cartao-aluno h1 { font-size: 1.4rem; letter-spacing: -.02em; color: var(--ink); }
.cartao-aluno p { margin: .2rem 0 0; color: var(--ink-2); font-size: .92rem; }

.niveis { display: flex; align-items: flex-end; gap: .35rem; margin: 1.5rem 0 .35rem; overflow-x: auto; padding-bottom: .35rem; }
.nivel { flex: 1 0 auto; min-width: 34px; text-align: center; opacity: .45; }
.nivel__marca {
    display: grid; place-items: center; height: 34px;
    border-radius: 8px; background: var(--paper-2); color: var(--ink-3);
    font-size: .8rem; font-weight: 750; font-variant-numeric: tabular-nums;
}
.nivel small { font-size: .58rem; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-3); }
.nivel.is-ganha { opacity: 1; }
.nivel.is-ganha .nivel__marca { background: var(--brand); color: #fff; }
.nivel.is-atual .nivel__marca { box-shadow: 0 0 0 3px var(--brand-ring); }

.barra { position: relative; height: 8px; border-radius: 99px; background: var(--brand-soft); overflow: hidden; }
.barra i { display: block; height: 100%; border-radius: inherit; background: var(--brand); transition: width .4s ease; }
.barra--fina { height: 8px; }
.barra--clara { background: var(--brand-soft); }
.barra--clara i { background: var(--brand); }

.cartao-aluno__meta { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; margin-top: .85rem; font-size: .85rem; color: var(--ink-2); }
.pilula { display: inline-flex; align-items: center; gap: .35rem; padding: .25rem .7rem; border-radius: 99px; background: var(--paper-2); border: 1px solid var(--line); font-weight: 600; color: var(--ink-2); font-size: .8rem; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.kpi { display: flex; align-items: center; gap: .9rem; padding: 1.15rem 1.2rem; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-md); box-shadow: var(--lift); }
.kpi__icone { display: grid; place-items: center; flex: 0 0 46px; height: 46px; border-radius: 13px; }
.kpi__icone svg { width: 22px; height: 22px; }
.kpi strong { display: block; font-size: 1.5rem; line-height: 1.1; letter-spacing: -.03em; color: var(--ink); }
.kpi span { color: var(--ink-2); font-size: .82rem; }

.tom-azul { background: var(--m-estudo-soft); color: var(--m-estudo-ink); }
.tom-verde { background: var(--m-exercicio-soft); color: var(--m-exercicio-ink); }
.tom-roxo { background: var(--m-revisao-soft); color: var(--m-revisao-ink); }
.tom-laranja { background: var(--warning-soft); color: var(--warning); }
.tom-rosa { background: var(--m-revisao-soft); color: var(--m-revisao-ink); }
.tom-ciano { background: var(--m-estudo-soft); color: var(--m-estudo-ink); }
.tom-vermelho { background: var(--m-atrasado-soft); color: var(--m-atrasado-ink); }

.mural { display: grid; gap: .9rem; }
.mural__item { padding: .95rem 1.05rem; border-radius: var(--r-md); border: 1px solid var(--line); border-left: 3px solid var(--brand); background: var(--paper-2); }
.mural__item small { color: var(--ink-3); font-size: .74rem; }
.mural__item strong { display: block; margin: .2rem 0 .3rem; }
.mural__item p { margin: 0; color: var(--ink-2); font-size: .86rem; line-height: 1.5; }

/* -------------------------------------------------------------- sessões -- */

.legenda { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; }
.legenda span { display: inline-flex; align-items: center; gap: .45rem; color: var(--ink-2); font-size: .82rem; font-weight: 600; }
.legenda i { width: 14px; height: 14px; border-radius: 4px; }

.sessao {
    display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 1rem;
    align-items: flex-start; padding: 1.2rem 1.35rem; background: var(--paper);
    border: 1px solid var(--line); border-radius: var(--r-md); box-shadow: var(--lift);
    border-left: 4px solid var(--linha, var(--m-estudo)); transition: transform .16s, box-shadow .16s;
}
.sessao:hover { border-color: var(--border-strong); }
.sessao--estudo { --linha: var(--m-estudo); }
.sessao--revisao { --linha: var(--m-revisao); }
.sessao--exercicio { --linha: var(--m-exercicio); }
.sessao--atrasado { --linha: var(--m-atrasado); }
.sessao.is-feita { opacity: .6; }
.sessao.is-feita .sessao__titulo { text-decoration: line-through; }

.sessao__marca {
    display: grid; place-items: center; width: 32px; height: 32px; border: 0; padding: 0;
    border-radius: 50%; background: var(--paper-2); color: var(--ink-3);
    border: 2px solid var(--line); cursor: pointer; transition: all .15s;
}
.sessao__marca:hover { border-color: var(--brand); color: var(--brand); }
.sessao__marca svg { width: 17px; height: 17px; }
.is-feita .sessao__marca { background: #12805a; border-color: #12805a; color: #fff; }

.sessao__cabeca { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; margin-bottom: .45rem; }
.sessao__titulo { font-size: 1rem; letter-spacing: -.01em; margin: 0; }
.sessao__materia { margin: .25rem 0 0; color: var(--ink-2); font-size: .85rem; }
.sessao__acoes { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; justify-content: flex-end; }

.selo { display: inline-flex; align-items: center; gap: .3rem; padding: .22rem .6rem; border-radius: 99px; font-size: .7rem; font-weight: 750; letter-spacing: .02em; text-transform: uppercase; }
.selo--estudo { background: var(--m-estudo-soft); color: var(--m-estudo-ink); }
.selo--revisao { background: var(--m-revisao-soft); color: var(--m-revisao-ink); }
.selo--exercicio { background: var(--m-exercicio-soft); color: var(--m-exercicio-ink); }
.selo--atrasado { background: var(--m-atrasado-soft); color: var(--m-atrasado-ink); }
.selo--neutro { background: var(--paper-2); color: var(--ink-2); border: 1px solid var(--line); }
.selo--tempo { background: var(--paper-2); color: var(--ink-2); text-transform: none; letter-spacing: 0; font-weight: 650; }
.selo--ok { background: #e4f9ee; color: #12805a; }

.dica {
    margin-top: .9rem; padding: .85rem 1rem; border-radius: var(--r-sm);
    background: var(--paper-2); border: 1px dashed var(--line);
    color: var(--ink-2); font-size: .82rem; line-height: 1.55;
}
.dica strong { color: var(--ink); }

/* ------------------------------------------------------ quadro da semana -- */

.semana { display: grid; grid-template-columns: repeat(7, minmax(150px, 1fr)); gap: .7rem; overflow-x: auto; padding-bottom: .5rem; }
.dia { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--paper); overflow: hidden; min-height: 260px; }
.dia__topo { padding: .7rem .6rem; text-align: center; background: var(--paper-2); border-bottom: 1px solid var(--line); color: var(--ink); }
.dia__topo strong { display: block; font-size: .85rem; }
.dia__topo small { display: block; color: var(--ink-3); font-size: .72rem; }
.dia.is-hoje { border-color: var(--brand); box-shadow: 0 0 0 2px var(--brand-ring); }
.dia.is-hoje .dia__topo { background: var(--brand); border-bottom-color: var(--brand); color: #fff; }
.dia.is-hoje .dia__topo small { color: rgba(255, 255, 255, .8); }
.dia__corpo { display: grid; gap: .5rem; padding: .55rem; }
.dia__vazio { padding: 1.5rem .5rem; text-align: center; color: var(--ink-3); font-size: .78rem; }
.dia__rodape { margin-top: auto; padding: .5rem .6rem; border-top: 1px dashed var(--line); color: var(--ink-3); font-size: .72rem; text-align: center; }

.tarefa { display: block; padding: .6rem .65rem; border-radius: var(--r-sm); border-left: 3px solid var(--linha); background: var(--fundo); color: var(--ink); }
.tarefa:hover { text-decoration: none; filter: brightness(.97); }
.tarefa--estudo { --linha: var(--m-estudo); --fundo: var(--m-estudo-soft); }
.tarefa--revisao { --linha: var(--m-revisao); --fundo: var(--m-revisao-soft); }
.tarefa--exercicio { --linha: var(--m-exercicio); --fundo: var(--m-exercicio-soft); }
.tarefa--atrasado { --linha: var(--m-atrasado); --fundo: var(--m-atrasado-soft); }
.tarefa strong { display: block; font-size: .74rem; line-height: 1.3; }
.tarefa span { display: block; margin-top: .2rem; color: var(--ink-2); font-size: .7rem; line-height: 1.35; }
.tarefa em { display: block; margin-top: .35rem; font-style: normal; font-size: .66rem; font-weight: 700; color: var(--ink-2); }
.tarefa.is-feita { opacity: .55; }
.tarefa.is-feita strong { text-decoration: line-through; }

/* ---------------------------------------------------------------- listas -- */

.cartoes { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1rem; }

.cartao-materia { display: flex; flex-direction: column; gap: .85rem; padding: 1.2rem; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-md); box-shadow: var(--lift); transition: transform .16s, box-shadow .16s, border-color .16s; }
.cartao-materia:hover { border-color: var(--border-strong); }
.cartao-materia__topo { display: flex; align-items: center; gap: .8rem; }
.cartao-materia__icone { display: grid; place-items: center; flex: 0 0 44px; height: 44px; border-radius: 13px; }
.cartao-materia__icone svg { width: 21px; height: 21px; }
.cartao-materia h2, .cartao-materia h3 { font-size: .98rem; letter-spacing: -.015em; }
.cartao-materia p { margin: .2rem 0 0; color: var(--ink-2); font-size: .82rem; }
.cartao-materia__pe { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }

.lista { display: grid; }
.lista__item { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; padding: .85rem 1.4rem; border-bottom: 1px solid var(--line); }
.lista__item:last-child { border-bottom: 0; }
.lista__item:hover { background: var(--paper-2); }
.lista__item > .cresce { flex: 1; min-width: 200px; }
.lista__item small { color: var(--ink-2); font-size: .78rem; }
.lista__item.is-feito .lista__nome { color: var(--ink-3); text-decoration: line-through; }

.tabela-wrap { overflow-x: auto; }
.tabela { width: 100%; border-collapse: collapse; font-size: .88rem; }
.tabela th { padding: .8rem 1rem; text-align: left; background: var(--paper-2); color: var(--ink-2); font-size: .72rem; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tabela td { padding: .8rem 1rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
.tabela tbody tr:last-child td { border-bottom: 0; }
.tabela tbody tr:hover { background: var(--paper-2); }
.tabela .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.tabela__grupo td { background: var(--paper-2); font-weight: 700; color: var(--ink); }

.taxa { display: inline-block; min-width: 58px; padding: .2rem .5rem; border-radius: 99px; text-align: center; font-size: .76rem; font-weight: 750; }
.taxa--alta { background: #e4f9ee; color: #12805a; }
.taxa--media { background: var(--m-exercicio-soft); color: var(--m-exercicio-ink); }
.taxa--baixa { background: var(--m-atrasado-soft); color: var(--m-atrasado-ink); }
.taxa--vazia { background: var(--paper-2); color: var(--ink-3); }

/* --------------------------------------------------------------- formas -- */

.campos { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.campos--2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.campo { display: grid; gap: .35rem; }
.campo > span { color: var(--ink-2); font-size: .78rem; font-weight: 700; letter-spacing: .01em; }
.campo input, .campo select, .campo textarea {
    width: 100%; min-height: 42px; padding: .6rem .75rem; font: inherit; color: var(--ink);
    background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-sm);
}
.campo textarea { min-height: 140px; resize: vertical; line-height: 1.6; }
.campo input:focus, .campo select:focus, .campo textarea:focus { border-color: var(--brand); outline: 2px solid var(--brand-ring); }
.campo small { color: var(--ink-3); font-size: .75rem; }

.escolha { display: flex; align-items: center; gap: .6rem; padding: .7rem .85rem; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--paper); cursor: pointer; font-size: .88rem; }
.escolha input { width: 17px; height: 17px; accent-color: var(--brand); }
.escolha:has(input:checked) { border-color: var(--brand); background: var(--brand-soft); }

.acoes-linha { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }

/* ------------------------------------------------------------- horários -- */

.horarios { display: grid; gap: .6rem; }
.horario { display: grid; grid-template-columns: 130px 1fr 90px; align-items: center; gap: 1rem; padding: .75rem 1rem; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--paper); }
.horario strong { font-size: .9rem; }
.horario input[type="range"] { width: 100%; accent-color: var(--brand); }
.horario output { font-weight: 750; color: var(--brand); text-align: right; font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------- ciclo ----- */

.ciclo { display: grid; gap: .5rem; max-width: 620px; }
.ciclo__item { display: flex; align-items: center; gap: .8rem; padding: .8rem 1rem; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--paper); cursor: grab; }
.ciclo__item.is-arrastando { opacity: .45; border-style: dashed; }
.ciclo__item .pega { color: var(--ink-3); font-size: 1rem; letter-spacing: -2px; }
.ciclo__item .ordem { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; background: var(--paper-2); color: var(--ink-2); font-size: .78rem; font-weight: 750; }
.ciclo__item .nome { flex: 1; font-size: .9rem; font-weight: 600; }

/* ------------------------------------------------------------- gráficos -- */

.grafico-barras { display: flex; align-items: flex-end; gap: 6px; height: 150px; padding-top: .5rem; }
.grafico-barras > div { flex: 1; display: flex; flex-direction: column; align-items: center; gap: .35rem; min-width: 0; }
.grafico-barras i { display: block; width: 100%; border-radius: 6px 6px 0 0; background: var(--brand); min-height: 3px; }
.grafico-barras small { font-size: .66rem; color: var(--ink-3); white-space: nowrap; }

.rosca { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; }
.rosca svg { width: 190px; height: 190px; }
.rosca__legenda { display: grid; gap: .45rem; min-width: 220px; flex: 1; }
.rosca__legenda span { display: flex; align-items: center; gap: .5rem; font-size: .82rem; color: var(--ink-2); }
.rosca__legenda i { width: 11px; height: 11px; border-radius: 3px; flex-shrink: 0; }
.rosca__legenda b { margin-left: auto; color: var(--ink); font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- vazio -- */

.vazio { padding: 3rem 1.5rem; text-align: center; color: var(--ink-2); }
.vazio svg { width: 42px; height: 42px; color: var(--ink-3); margin-bottom: .6rem; }
.vazio strong { display: block; color: var(--ink); font-size: 1rem; margin-bottom: .3rem; }

/* --------------------------------------------------------- responsivo --- */

@media (max-width: 1100px) {
    .painel { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
    .semana { grid-template-columns: repeat(7, 180px); }
    .sessao { grid-template-columns: auto minmax(0, 1fr); }
    .sessao__acoes { grid-column: 1 / -1; justify-content: flex-start; }
    .horario { grid-template-columns: 1fr; gap: .4rem; }
    .horario output { text-align: left; }
}

@media (max-width: 480px) {
    /* Botões de ação com rótulo longo (ex.: "Salvar horários e refazer o
       cronograma") ficam mais largos que o texto permite quebrar -- sem
       isso, o .bloco (overflow: hidden) corta o fim do texto em silêncio. */
    .bloco__rodape .btn { width: 100%; white-space: normal; text-align: center; }
}

@media print {
    .abas-plano, .sessao__acoes, .pagina-topo .acoes { display: none !important; }
    .bloco, .sessao, .dia { box-shadow: none; }
}

/* ------------------------------------------------------------ utilidades -- */

.cresce { flex: 1; min-width: 0; }
.block { display: block; }
.ordem { display: grid; place-items: center; width: 26px; height: 26px; flex: 0 0 26px; border-radius: 8px; background: var(--paper-2); color: var(--ink-2); font-size: .75rem; font-weight: 750; }
.pagina .checklist li { border-bottom-color: var(--line); color: var(--ink-2); }
.pagina .checklist svg { color: var(--ink-3); }
.pagina .checklist .ok { color: #12805a; }
.pagina .checklist .no { color: var(--m-atrasado); }
.pagina .input { min-height: 42px; border-radius: var(--r-sm); border-color: var(--line); background: var(--paper); color: var(--ink); }
.pagina form { margin: 0; }
.pagina .tabela input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--brand); }
.pagina a.small { display: inline-block; margin-bottom: .35rem; font-size: .82rem; font-weight: 650; }

/* Revisões e exercícios, reagendamento e presets */
.campo-linha { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.linha-form  { display: flex; gap: .5rem; align-items: center; }
@media (max-width: 640px) { .campo-linha { grid-template-columns: 1fr; } }

/* Cronômetros flutuantes (cronometro.js) */
.cron { position: fixed; right: 1rem; bottom: 1rem; z-index: 70; display: flex; flex-direction: column; align-items: flex-end; gap: .6rem; }
.cron__fab { display: inline-flex; align-items: center; gap: .5rem; height: 48px; min-width: 48px; padding: 0 .9rem; border: 0; border-radius: 99px; cursor: pointer;
    background: var(--brand); color: #fff; font: inherit; font-weight: 700; box-shadow: 0 6px 18px -6px hsl(221 40% 20% / .4); justify-content: center; }
.cron__fab:hover { background: var(--brand-hover); }
.cron__fab.is-rodando { background: var(--success); }
.cron__icone { font-size: 1.15rem; line-height: 1; }
.cron__fabtempo { font-variant-numeric: tabular-nums; font-size: .9rem; }
.cron__painel { width: min(340px, calc(100vw - 2rem)); max-height: min(70vh, 560px); display: flex; flex-direction: column;
    background: var(--surface); color: var(--fg); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow); overflow: hidden; }
.cron__painel[hidden] { display: none; }
.cron__topo { display: flex; justify-content: space-between; align-items: center; padding: .8rem 1rem; border-bottom: 1px solid var(--border); }
.cron__x { border: 0; background: transparent; color: var(--fg-muted); font-size: 1.4rem; line-height: 1; cursor: pointer; }
.cron__lista { padding: .75rem; overflow-y: auto; display: grid; gap: .6rem; }
.cron__vazio { color: var(--fg-muted); font-size: .88rem; padding: .5rem; margin: 0; }
.cron__item { display: grid; gap: .45rem; padding: .75rem; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-2); }
.cron__item.is-rodando { border-color: var(--success); }
.cron__nome { width: 100%; border: 0; border-bottom: 1px dashed var(--border-strong); background: transparent; color: var(--fg); font: inherit; font-size: .9rem; padding: .15rem 0; }
.cron__tempo { font-size: 1.9rem; font-weight: 750; font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.cron__acoes { display: flex; gap: .4rem; flex-wrap: wrap; }
.cron__btn { border: 1px solid var(--border-strong); background: var(--surface); color: var(--fg); border-radius: 8px; padding: .35rem .7rem; font: inherit; font-size: .82rem; font-weight: 600; cursor: pointer; }
.cron__btn:hover { background: var(--surface-2); }
.cron__btn--principal { background: var(--brand); border-color: var(--brand); color: #fff; }
.cron__btn--principal:hover { background: var(--brand-hover); }
.cron__btn--perigo { color: var(--danger); }
.cron__rodape { display: flex; gap: .5rem; padding: .75rem; border-top: 1px solid var(--border); }
.cron__fab.is-terminou { background: var(--danger); animation: cron-pulsa 1s ease-in-out infinite; }
.cron__item.is-terminou { border-color: var(--danger); }
.cron__fase { font-size: .78rem; color: var(--fg-muted); }
.cron__barra { height: 6px; border-radius: 99px; background: var(--border); overflow: hidden; }
.cron__barra i { display: block; height: 100%; width: 0; background: var(--brand); transition: width .9s linear; }
.cron__item.is-rodando .cron__barra i { background: var(--success); }
.cron__novo { display: grid; gap: .5rem; padding: .75rem; border-top: 1px solid var(--border); }
.cron__select { width: 100%; padding: .4rem; border-radius: 8px; border: 1px solid var(--border-strong); background: var(--surface); color: var(--fg); font: inherit; }
.cron__desc { margin: 0; font-size: .78rem; color: var(--fg-muted); }
.cron__extras { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; }
.cron__campo { display: grid; gap: .15rem; font-size: .75rem; color: var(--fg-muted); }
.cron__campo input { width: 100%; padding: .3rem; border-radius: 7px; border: 1px solid var(--border-strong); background: var(--surface); color: var(--fg); font: inherit; }
.cron__opcoes { padding: .6rem .75rem .75rem; border-top: 1px solid var(--border); font-size: .85rem; }
.cron__opcoes summary { cursor: pointer; font-weight: 600; margin-bottom: .4rem; }
.cron__opcao { display: flex; align-items: center; gap: .5rem; padding: .15rem 0; }
@keyframes cron-pulsa { 50% { transform: scale(1.08); } }
@media (prefers-reduced-motion: reduce) { .cron__fab.is-terminou { animation: none; } }

/* Menu "mais opções" de uma sessão */
.mais { position: relative; }
.mais > summary { list-style: none; cursor: pointer; }
.mais > summary::-webkit-details-marker { display: none; }
.mais__menu { position: absolute; right: 0; top: calc(100% + .3rem); z-index: 15; min-width: 200px; padding: .3rem; display: grid; gap: 1px;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.mais__menu a, .mais__menu button { display: block; width: 100%; padding: .5rem .7rem; border: 0; border-radius: 6px; background: none; color: var(--fg);
    font: inherit; font-size: .85rem; text-align: left; cursor: pointer; text-decoration: none; -webkit-tap-highlight-color: transparent; }
.mais__menu a:hover, .mais__menu button:hover, .mais__menu a:active, .mais__menu button:active { background: var(--surface-2); }
.mais__menu form { margin: 0; }

/* Parcialmente visto e reprogramar */
.parcial { margin-top: .6rem; }
.parcial > summary { cursor: pointer; color: var(--brand); font-size: .85rem; font-weight: 600; list-style: none; }
.parcial > summary::-webkit-details-marker { display: none; }
.parcial > summary:hover { text-decoration: underline; }
.parcial__form { display: grid; gap: .7rem; margin-top: .7rem; padding: 1rem; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-md); max-width: 34rem; }
.parcial__form textarea, .parcial__form input { width: 100%; }
.parcial__nota { margin: .5rem 0 0; font-size: .88rem; color: var(--ink-2); }
.mais__data { display: grid; gap: .3rem; padding: .3rem .4rem .5rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: .2rem 0; }
.mais__data label { display: grid; gap: .25rem; font-size: .78rem; color: var(--ink-2); }
.mais__data input { padding: .3rem; border: 1px solid var(--border-strong); border-radius: 6px; font: inherit; }
.mais__data button { text-align: center !important; background: var(--brand-soft) !important; color: var(--brand) !important; font-weight: 600; }

/* Caderno por assunto */
.caderno-assuntos { display: grid; gap: .5rem; border-top: 1px solid var(--line); }
.caderno-assuntos__topo { display: flex; justify-content: space-between; align-items: center; gap: .5rem; flex-wrap: wrap; }
.caderno-assuntos__topo h2 { margin: 0; font-size: 1rem; }
.caderno-assunto { border: 1px solid var(--line); border-radius: var(--radius, 8px); padding: .25rem .75rem; }
.caderno-assunto > summary { display: flex; align-items: center; gap: .5rem; cursor: pointer; padding: .5rem 0; font-weight: 600; list-style: none; }
.caderno-assunto > summary::-webkit-details-marker { display: none; }
.caderno-assunto > summary svg { width: 16px; height: 16px; transition: transform .15s; transform: rotate(-90deg); }
.caderno-assunto[open] > summary svg { transform: none; }
.caderno-assunto textarea { width: 100%; margin-bottom: .75rem; }

/* Escolha de ícone */
.icone-grade { display: flex; flex-wrap: wrap; gap: .4rem; }
.icone-opcao { position: relative; cursor: pointer; }
.icone-opcao input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.icone-opcao > span:first-of-type { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--paper); color: var(--muted, inherit); }
.icone-opcao > span:first-of-type svg { width: 20px; height: 20px; }
.icone-opcao:hover > span:first-of-type { border-color: var(--brand); }
.icone-opcao input:checked + span { border-color: var(--brand); background: var(--brand-soft); color: var(--brand); }
.icone-opcao input:focus-visible + span { outline: 2px solid var(--brand); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.link-botao { background: none; border: 0; padding: 0; color: var(--brand); font: inherit; text-decoration: underline; cursor: pointer; }

.aviso-norte { display: flex; gap: .5rem; align-items: flex-start; margin: .75rem 0 0; padding: .6rem .8rem; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--paper); font-size: .85rem; }
.aviso-norte svg { width: 16px; height: 16px; flex: none; margin-top: .15rem; }

/* Correções pontuais da redação: o trecho errado riscado, a sugestão em destaque (vermelho e negrito de propósito -- é para chamar a atenção). */
.lista-correcoes { list-style: none; margin: .5rem 0 0; padding: 0; display: grid; gap: .6rem; }
.lista-correcoes li { padding: .6rem .8rem; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--paper); }
.correcao-problema { display: block; margin-bottom: .25rem; font-size: .78rem; color: var(--ink-2); }
.correcao-trecho { color: var(--ink-2); text-decoration: line-through; }
.correcao-sugestao { color: var(--danger); font-weight: 750; }

/* --------------------------------------------------------------- TAF --- */
.taf-grafico { display: block; width: 100%; height: auto; }
.taf-grafico__linha { stroke: var(--brand); stroke-width: 2.5; }
.taf-grafico__meta { stroke: var(--ink-2); stroke-width: 1; opacity: .5; }
.taf-grafico__melhor { fill: var(--brand); }
.taf-grafico__eixo { fill: var(--ink-2); font-size: 10px; }

/* ----------------------------------------------------------- desempenho -- */

[data-desempenho] [hidden] { display: none !important; }

.graficos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; align-items: start; }
.graficos--tempo { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
@media (max-width: 1000px) {
    .graficos, .graficos--tempo { grid-template-columns: minmax(0, 1fr); }
}

.vazio--compacto { padding: 1.5rem 1rem; }

/* Meia largura não comporta os 14 rótulos de data: fica um sim, um não (o de hoje sempre aparece; o valor de cada dia está no tooltip). */
@media (min-width: 1001px) {
    .graficos--tempo .grafico-barras > div:nth-child(odd) small { visibility: hidden; }
}

.segmentos { display: inline-flex; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 99px; background: var(--paper-2); }
.segmentos button {
    padding: .3rem .8rem; border: 0; border-radius: 99px; background: transparent; cursor: pointer;
    color: var(--ink-2); font: inherit; font-size: .8rem; font-weight: 620; white-space: nowrap;
}
.segmentos button:hover { color: var(--brand); }
.segmentos button[aria-selected="true"], .segmentos button[aria-pressed="true"] { background: var(--brand); color: #fff; }
.segmentos button:focus-visible { outline: 2px solid var(--brand-ring); outline-offset: 1px; }
.segmentos--mini { flex-wrap: wrap; justify-content: center; border-radius: 14px; }
.segmentos--mini button { padding: .18rem .42rem; font-size: .68rem; }

/* Rosca com o total no centro (o svg vem de Graficos::rosca). */
.rosca__total { font-size: 25px; font-weight: 800; fill: var(--ink); letter-spacing: -.03em; }
.rosca__sub { font-size: 10px; fill: var(--ink-3); }
.rosca__legenda small { min-width: 2.6em; text-align: right; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.rosca__legenda b { margin-left: auto; }

.variacao { display: grid; justify-items: end; gap: .1rem; max-width: 260px; text-align: right; }
.variacao strong { padding: .1rem .55rem; border-radius: 99px; font-size: .85rem; }
.variacao span { color: var(--ink-3); font-size: .72rem; line-height: 1.3; }
.variacao--alta strong { background: #e4f9ee; color: #12805a; }
.variacao--baixa strong { background: var(--warning-soft); color: var(--warning); }

.grafico-barras--dias { height: 172px; }
.grafico-barras--dias .valor { min-height: 1em; color: var(--ink-2); font-weight: 650; font-variant-numeric: tabular-nums; }
.grafico-barras--dias i { background: hsl(var(--brand-h) 65% 72%); }
.grafico-barras--dias .is-pico i { background: var(--accent); }
.grafico-barras--dias .is-pico .valor { color: var(--ink); }
.insight { margin: 1rem 0 0; color: var(--ink-2); font-size: .88rem; }
.insight strong { color: var(--ink); }

/* Constância: o calendário de quadradinhos. */
.constancia { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem 2.5rem; }
.constancia__numeros { display: grid; flex: 1; min-width: 220px; gap: .75rem; }
.mapa-wrap { --c: 19px; --g: 4px; max-width: 100%; overflow-x: auto; padding-bottom: .25rem; }
.mapa__meses { display: grid; grid-auto-columns: var(--c); gap: var(--g); height: 20px; margin-left: 34px; color: var(--ink-3); font-size: .68rem; }
.mapa__meses span { white-space: nowrap; }
.mapa__quadro { display: flex; gap: 6px; }
.mapa__semana { display: grid; grid-template-rows: repeat(7, var(--c)); gap: var(--g); width: 28px; align-items: center; color: var(--ink-3); font-size: .62rem; line-height: 1; }
.mapa { display: grid; grid-auto-flow: column; grid-template-rows: repeat(7, var(--c)); grid-auto-columns: var(--c); gap: var(--g); }
.mapa i, .mapa__legenda i { display: block; border-radius: 4px; background: hsl(220 14% 93%); }
.mapa i.n1, .mapa__legenda i.n1 { background: hsl(var(--brand-h) 70% 86%); }
.mapa i.n2, .mapa__legenda i.n2 { background: hsl(var(--brand-h) 70% 70%); }
.mapa i.n3, .mapa__legenda i.n3 { background: hsl(var(--brand-h) 80% 46%); }
.mapa i.n4, .mapa__legenda i.n4 { background: var(--brand); }
.mapa i.futuro { background: transparent; }
.mapa__legenda { display: flex; align-items: center; gap: 4px; margin: .7rem 0 0 34px; color: var(--ink-3); font-size: .68rem; }
.mapa__legenda i { width: 12px; height: 12px; }
.mapa__legenda span:first-child { margin-right: 2px; }
.mapa__legenda span:last-child { margin-left: 2px; }

/* Divisão do tempo entre estudo, revisão e exercícios. */
.pilha { display: flex; gap: 3px; height: 24px; overflow: hidden; border-radius: 99px; }
.pilha i { min-width: 6px; }
.pilha--estudo { background: var(--m-estudo); }
.pilha--revisao { background: var(--m-revisao); }
.pilha--exercicio { background: var(--m-exercicio); }
.pilha__legenda { display: grid; gap: .55rem; margin-top: 1.1rem; }
.pilha__legenda > div { display: flex; align-items: center; gap: .55rem; font-size: .85rem; color: var(--ink-2); }
.pilha__legenda strong { color: var(--ink); }
.pilha__legenda span:not(.pilha__ponto) { margin-left: auto; font-variant-numeric: tabular-nums; }
.pilha__legenda small { min-width: 2.6em; text-align: right; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.pilha__ponto { width: 11px; height: 11px; border-radius: 3px; flex-shrink: 0; }

/* Linha do tempo (Graficos::linha). */
.linha svg { display: block; width: 100%; max-width: 920px; height: auto; margin: 0 auto; }
.linha__grade { stroke: var(--line); stroke-width: 1; stroke-dasharray: 3 4; }
.linha__eixo { fill: var(--ink-3); font-size: 10.5px; }
.linha__area { fill: var(--brand); opacity: .08; }
.linha__tracado { fill: none; stroke: var(--brand); stroke-width: 2.5; stroke-linejoin: round; stroke-linecap: round; }
.linha__ponto { fill: #fff; stroke: var(--brand); stroke-width: 2; }
.linha__ponto.is-ultimo { fill: var(--brand); stroke: #fff; }
.linha__valor { fill: var(--ink); font-size: 12px; font-weight: 700; }

/* Cartões para compartilhar (stories). */
.compartilhar { border-color: hsl(var(--brand-h) 45% 86%); background: linear-gradient(180deg, var(--brand-soft), var(--paper) 60%); }
.compartilhar__opcoes { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1.25rem; }
.compartilhar .bloco__topo { border-bottom-color: hsl(var(--brand-h) 45% 90%); }
.compartilhar .bloco__topo h2 { display: flex; align-items: center; gap: .5rem; }
.compartilhar .bloco__topo h2 svg { color: var(--brand); }

.temas { display: flex; gap: .55rem; }
.tema { width: 30px; height: 30px; padding: 0; border: 2px solid #fff; border-radius: 50%; cursor: pointer; box-shadow: 0 0 0 1px var(--border-strong); }
.tema:hover { transform: scale(1.08); }
.tema[aria-pressed="true"] { box-shadow: 0 0 0 2px var(--brand); }
.tema:focus-visible { outline: 2px solid var(--brand-ring); outline-offset: 3px; }
.tema--noite { background: linear-gradient(135deg, #16408f, #020817); }
.tema--ouro { background: linear-gradient(135deg, #f0b018, #2a1a04); }
.tema--aurora { background: linear-gradient(135deg, #2dd4bf, #4c1d95); }
.tema--claro { background: linear-gradient(135deg, #ffffff, #d5e0f5); }

.chave { display: inline-flex; align-items: center; gap: .45rem; color: var(--ink-2); font-size: .85rem; cursor: pointer; }
.chave input { width: 16px; height: 16px; accent-color: var(--brand); }

.stories { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1.4rem 1.1rem; }

/* Seis cartões: 6 numa fileira, 3+3 ou 2+2+2, nunca uma fileira com um cartão sozinho. */
.compartilhar .bloco__corpo { container-type: inline-size; }
@container (min-width: 1000px) { .stories { grid-template-columns: repeat(6, minmax(0, 1fr)); } }
@container (min-width: 600px) and (max-width: 999px) { .stories { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@container (max-width: 599px) { .stories { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.story { display: flex; flex-direction: column; gap: .55rem; min-width: 0; }
.story__quadro {
    position: relative; aspect-ratio: 9 / 16; overflow: hidden; border-radius: 16px;
    background: #0b1220; box-shadow: var(--lift-lg); transition: transform .2s ease, box-shadow .2s ease;
}
.story:hover .story__quadro { transform: translateY(-3px); box-shadow: 0 14px 34px -14px rgba(20, 35, 65, .45); }
.story__quadro canvas { display: block; width: 100%; height: 100%; }
.story__info strong { display: block; color: var(--ink); font-size: .9rem; }
.story__info span { display: block; color: var(--ink-2); font-size: .76rem; line-height: 1.35; }
.story__acoes { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .1rem; }
.story__aviso { margin: 0; color: var(--ink-3); font-size: .74rem; line-height: 1.35; }
.story.is-bloqueado .story__quadro { opacity: .85; }

@media (max-width: 720px) {
    .stories { display: flex; gap: 1rem; overflow-x: auto; padding-bottom: .75rem; scroll-snap-type: x mandatory; }
    .story { flex: 0 0 58%; scroll-snap-align: start; }
    .variacao { justify-items: start; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
    .story__quadro, .tema { transition: none; }
    .story:hover .story__quadro, .tema:hover { transform: none; }
}