/* Identidade visual Medmob — azul institucional único, papel, Newsreader / Archivo / Source Sans 3 */
:root {
  --navy: #0a1b37;
  --paper: #fbfaf8;
  --surface: #ffffff;
  --panel: #eef0f3;
  --line: #dde1e8;
  --ink: #16202e;
  --ink-2: #2a3547;
  --muted: #5a6675;
  --deco: #b7bec9;
  --on-navy: #e4e9f1;
  --on-navy-2: #aebacd;
  --on-navy-label: #7f91ae;
  /* escala de dificuldade: do vermelho (muito difícil) ao verde (muito fácil), em tons sóbrios */
  --n1: #b8433b;
  --n2: #d98a3d;
  --n3: #7fa653;
  --n4: #2f8a57;
  --erro: #9b1c1c;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --label: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --sans: "Source Sans 3", "Source Sans Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --radius: 4px;
  font-family: var(--sans);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--paper); }
body { font-size: 17px; line-height: 1.5; min-height: 100vh; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
img { max-width: 100%; }
.oculto { display: none !important; }

.app { max-width: 960px; margin: 0 auto; padding: 0 16px 32px; }
.rotulo { font-family: var(--label); font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }

/* Cabeçalho: faixa azul com logo branca */
.faixa { background: var(--navy); color: var(--on-navy); margin: 0 0 24px; }
.topo { max-width: 960px; margin: 0 auto; padding: 14px 16px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.logo { height: 26px; display: block; }
.produto { font-family: var(--label); font-size: 12px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--on-navy-label); padding-left: 16px; border-left: 1px solid rgba(255, 255, 255, .18); }
.abas { display: flex; gap: 4px; margin-left: auto; }
.aba { border: 0; background: transparent; padding: 8px 4px; margin: 0 8px; color: var(--on-navy-2); font-family: var(--label); font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; border-bottom: 2px solid transparent; }
.aba:hover { color: #fff; }
.aba[aria-selected="true"] { color: #fff; border-bottom-color: #fff; }
.usuario { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--on-navy-label); font-variant-numeric: tabular-nums; }
.usuario .link { color: var(--on-navy); }
.link { border: 0; background: none; color: var(--navy); padding: 4px 0; font-size: 14px; font-weight: 600; text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }

/* Blocos */
.painel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.painel + .painel, .painel + .grade, .grade + .painel { margin-top: 16px; }
h1, h2, h3 { margin: 0; font-family: var(--serif); font-weight: 500; color: var(--navy); letter-spacing: -.005em; line-height: 1.15; }
h1 { font-size: 30px; }
h2 { font-size: 22px; }
.sub { color: var(--muted); font-size: 15px; margin: 4px 0 0; }
.lead { font-family: var(--serif); font-style: italic; font-size: 19px; line-height: 1.4; color: var(--ink-2); margin: 8px 0 0; }

.btn { border: 1px solid var(--navy); border-radius: var(--radius); padding: 12px 22px; font-family: var(--label); font-weight: 600; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; background: var(--navy); color: #fff; transition: background .15s, color .15s; }
.btn:hover { background: #172a4d; }
.btn:disabled { opacity: .4; cursor: default; }
.btn-sec { background: transparent; color: var(--navy); }
.btn-sec:hover { background: var(--panel); }
.btn-peq { padding: 8px 14px; font-size: 11px; }
.btn-bloco { width: 100%; }
a.btn { display: inline-block; text-decoration: none; }

/* Login */
.login { max-width: 440px; margin: 0 auto; padding-top: 7vh; }
.login-logo { height: 34px; display: block; margin: 0 auto 28px; }
.login .painel { padding: 32px 28px; }
.login h1 { font-size: 34px; }
.campo { display: block; margin: 24px 0 12px; }
.campo span { display: block; margin-bottom: 8px; }
.campo input { width: 100%; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; font-size: 22px; letter-spacing: .06em; text-align: center; background: var(--paper); font-variant-numeric: tabular-nums; }
.campo input:focus { outline: 2px solid var(--navy); outline-offset: 1px; background: #fff; }
.erro { color: var(--erro); font-size: 14px; min-height: 21px; margin: 0 0 8px; }
.nota-rodape { font-size: 13px; color: var(--muted); margin-top: 16px; }
.rodape { text-align: center; font-family: var(--label); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--deco); margin-top: 28px; }

/* Home de estudo */
.resumo-estudo { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; border-left: 4px solid var(--navy); }
.resumo-num { font-family: var(--serif); font-size: 52px; font-weight: 500; line-height: 1; color: var(--navy); font-variant-numeric: tabular-nums; }
.lista-materias { list-style: none; margin: 16px 0 0; padding: 0; }
.materia { border-top: 1px solid var(--line); }
.materia-linha { display: flex; align-items: center; gap: 12px; padding: 16px 0; }
.materia-exp { border: 1px solid transparent; background: none; padding: 0; width: 36px; height: 36px; display: grid; place-items: center; flex-shrink: 0; color: inherit; border-radius: var(--radius); }
.materia-exp:hover { background: var(--panel); border-color: var(--line); }
.materia-estudar { border: 0; background: none; padding: 4px 0; flex: 1; min-width: 0; text-align: left; color: inherit; }
.materia-estudar:hover .materia-nome { text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.seta { width: 16px; color: var(--muted); transition: transform .2s; flex-shrink: 0; }
.materia.aberta .seta { transform: rotate(90deg); color: var(--navy); }
.materia-nome { display: block; font-weight: 600; font-size: 18px; color: var(--navy); }
.chips { display: flex; gap: 12px; flex-wrap: wrap; font-size: 13px; color: var(--muted); margin-top: 2px; }
.chip { white-space: nowrap; }
.chip.pend { color: var(--navy); font-weight: 700; }
.temas { list-style: none; margin: 0 0 12px 28px; padding: 0; display: none; }
.materia.aberta .temas { display: block; }
.tema-linha { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-top: 1px solid var(--panel); }
.tema-nome { flex: 1; font-size: 16px; color: var(--ink); min-width: 0; border: 0; background: none; padding: 0; text-align: left; }
.tema-nome:hover { text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.temas { margin-left: 48px; }
.tema-ver { justify-content: flex-start; }
.vazio { text-align: center; color: var(--muted); padding: 40px 12px; }
.vazio .lead { margin-bottom: 20px; }

/* Sessão de estudo */
.sessao-topo { display: flex; align-items: center; gap: 16px; margin-bottom: 14px; }
.barra-prog { flex: 1; height: 3px; background: var(--line); overflow: hidden; }
.barra-prog > div { height: 100%; background: var(--navy); width: 0; transition: width .3s; }
.contador { font-family: var(--label); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); white-space: nowrap; font-variant-numeric: tabular-nums; }
.flashcard { min-height: 340px; display: flex; flex-direction: column; padding: 28px; }
.card-meta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 18px; }
.card-meta .novo { background: var(--navy); color: #fff; padding: 2px 8px; font-family: var(--label); font-size: 10px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; }
.card-frente { font-family: var(--serif); font-size: 26px; font-weight: 500; line-height: 1.3; color: var(--navy); overflow-wrap: anywhere; }
.card-verso { font-size: 19px; line-height: 1.5; color: var(--ink); overflow-wrap: anywhere; }
.divisor { border: 0; border-top: 1px solid var(--line); margin: 24px 0; position: relative; }
.card-img { display: block; margin: 16px 0 0; padding: 0; border: 1px solid var(--line); background: var(--paper); cursor: zoom-in; border-radius: var(--radius); overflow: hidden; max-width: 100%; }
.card-img img { display: block; max-height: 360px; max-width: 100%; width: auto; height: auto; margin: 0 auto; }
.card-img-dica { font-size: 12px; color: var(--muted); margin-top: 4px; }
.card-acoes { margin-top: auto; padding-top: 28px; }
.pergunta-nota { text-align: center; margin: 0 0 12px; }
.notas { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.nota { border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); padding: 15px 6px 13px; display: flex; flex-direction: column; align-items: center; gap: 2px; font-weight: 600; font-size: 15px; color: var(--navy); box-shadow: inset 0 3px 0 var(--c); }
.nota small { font-family: var(--label); font-weight: 500; letter-spacing: .06em; color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.nota:hover { background: var(--panel); background: color-mix(in srgb, var(--c) 8%, #fff); }
.nota[data-n="1"] { --c: var(--n1); }
.nota[data-n="2"] { --c: var(--n2); }
.nota[data-n="3"] { --c: var(--n3); }
.nota[data-n="4"] { --c: var(--n4); }
.dica-teclado { text-align: center; font-size: 12px; color: var(--deco); margin-top: 12px; }
@media (hover: none) { .dica-teclado { display: none; } }
.fim { text-align: center; padding: 40px 24px; }
.fim .notas-resumo { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin: 20px 0 24px; font-size: 15px; color: var(--muted); }
.fim .notas-resumo b { color: var(--navy); }
.fim .acoes { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.ponto { display: inline-block; width: 10px; height: 10px; background: var(--c); margin-right: 6px; vertical-align: -1px; }

/* Visualizador de imagem */
.lightbox { position: fixed; inset: 0; z-index: 50; background: rgba(10, 27, 55, .94); display: flex; align-items: center; justify-content: center; padding: 16px; cursor: zoom-out; }
.lightbox img { max-width: 100%; max-height: 100%; object-fit: contain; background: #fff; }
.lightbox button { position: absolute; top: 12px; right: 12px; background: transparent; border: 1px solid rgba(255, 255, 255, .4); color: #fff; font-family: var(--label); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; padding: 8px 12px; border-radius: var(--radius); }

/* Dashboard */
.grade { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.kpi { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.kpi-valor { font-family: var(--serif); font-size: 38px; font-weight: 500; line-height: 1.1; color: var(--navy); font-variant-numeric: tabular-nums; margin-top: 6px; }
.kpi-extra { font-size: 13px; color: var(--muted); }
.cab-painel { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.cab-painel select { border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 12px; background: var(--surface); max-width: 100%; }
.barras { list-style: none; margin: 0; padding: 0; }
.barra-item { display: grid; grid-template-columns: minmax(0, 40%) 1fr 40px; gap: 12px; align-items: center; padding: 8px 6px; position: relative; border-bottom: 1px solid var(--panel); }
.barra-item:last-child { border-bottom: 0; }
.barra-item.clicavel { cursor: pointer; }
.barra-item:hover, .barra-item:focus-visible { background: var(--paper); outline: none; }
.barra-item.ativa { background: var(--panel); box-shadow: inset 3px 0 0 var(--navy); }
.barra-rotulo { font-size: 15px; font-weight: 600; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.barra-rotulo small { display: block; color: var(--muted); font-size: 12px; font-weight: 400; }
.barra-trilho { height: 12px; position: relative; }
.barra-fill { height: 100%; background: var(--navy); border-radius: 0 3px 3px 0; min-width: 2px; }
.barra-fill.sem { background: var(--line); }
.barra-valor { font-family: var(--label); font-size: 15px; font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; color: var(--navy); }
.barra-valor.sem { color: var(--deco); font-weight: 400; }
.legenda-indice { font-size: 13px; color: var(--muted); margin: 12px 0 0; font-family: var(--serif); font-style: italic; }
.tooltip { position: fixed; z-index: 40; pointer-events: none; background: var(--navy); color: var(--on-navy); font-size: 13px; border-radius: var(--radius); padding: 10px 12px; max-width: 280px; }
.tooltip b { display: block; margin-bottom: 4px; font-size: 14px; color: #fff; }
.tooltip .l { display: flex; justify-content: space-between; gap: 16px; font-variant-numeric: tabular-nums; }
.tooltip .ponto { outline: 1px solid rgba(255, 255, 255, .5); }
.atividade { display: grid; grid-template-columns: repeat(14, 1fr); gap: 4px; align-items: end; height: 120px; }
.ativ-col { display: flex; flex-direction: column; justify-content: flex-end; height: 100%; cursor: default; }
.ativ-bar { background: var(--navy); border-radius: 3px 3px 0 0; min-height: 2px; }
.ativ-bar.zero { background: var(--line); }
.ativ-eixo { display: grid; grid-template-columns: repeat(14, 1fr); gap: 4px; font-family: var(--label); font-size: 10px; letter-spacing: .06em; color: var(--muted); text-align: center; margin-top: 4px; border-top: 1px solid var(--line); padding-top: 6px; text-transform: uppercase; }
.lista-dificeis { list-style: none; margin: 0; padding: 0; }
.lista-dificeis li { padding: 12px 0; border-top: 1px solid var(--panel); display: flex; gap: 12px; align-items: flex-start; }
.lista-dificeis li:first-child { border-top: 0; }
.lista-dificeis .txt { flex: 1; min-width: 0; font-size: 15px; }
.lista-dificeis .txt small { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }
.lista-dificeis .erros { font-size: 12px; color: var(--muted); white-space: nowrap; text-align: right; }
.lista-dificeis .erros b { font-family: var(--label); font-size: 15px; color: var(--navy); }
.duas-col { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; margin-top: 16px; }
.duas-col .painel { margin-top: 0 !important; }

.carregando { text-align: center; color: var(--muted); padding: 48px; font-family: var(--serif); font-style: italic; }

@media (max-width: 760px) {
  .duas-col { grid-template-columns: 1fr; }
  .produto { display: none; }
}
@media (max-width: 560px) {
  .app { padding: 0 12px 24px; }
  .faixa { margin: 0 0 16px; }
  .topo { padding: 12px; gap: 8px 12px; }
  .logo { height: 22px; }
  .abas { margin-left: 0; order: 3; width: 100%; border-top: 1px solid rgba(255, 255, 255, .12); padding-top: 4px; }
  .aba { flex: 1; margin: 0; }
  .usuario { margin-left: auto; }
  .painel { padding: 18px; }
  .flashcard { padding: 20px; min-height: 300px; }
  .card-frente { font-size: 22px; }
  .card-verso { font-size: 17px; }
  .card-img img { max-height: 260px; }
  .notas { grid-template-columns: repeat(2, 1fr); }
  .barra-item { grid-template-columns: minmax(0, 44%) 1fr 32px; gap: 8px; }
  .kpi-valor { font-size: 30px; }
  .grade { grid-template-columns: repeat(2, 1fr); }
  .grade .kpi:last-child:nth-child(odd) { grid-column: 1 / -1; }
  .temas { margin-left: 4px; }
  .resumo-num { font-size: 44px; }
}
.rank { display: inline-block; min-width: 26px; font-family: var(--label); font-size: 13px; font-weight: 600; color: var(--muted); font-variant-numeric: tabular-nums; }
.ranking .barra-item { grid-template-columns: 1fr 40px; row-gap: 6px; }
.ranking .barra-rotulo { grid-column: 1 / -1; white-space: normal; overflow: visible; }
.ranking .barra-rotulo small { padding-left: 26px; }

/* Meta diária */
.meta { padding: 16px 20px; }
.meta-cab { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.meta-num { font-size: 15px; color: var(--muted); margin-top: 2px; }
.meta-num b { font-family: var(--serif); font-size: 26px; font-weight: 500; color: var(--navy); }
.meta-status { font-family: var(--label); font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--navy); }
.meta-barra { height: 6px; background: var(--panel); margin: 10px 0 8px; overflow: hidden; border-radius: 3px; }
.meta-barra > div { height: 100%; background: var(--navy); transition: width .4s; }
.meta-alterar { font-size: 13px; }
.meta-opcoes { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.chip-meta { border: 1px solid var(--line); background: var(--surface); color: var(--navy); border-radius: var(--radius); padding: 4px 10px; font-size: 14px; font-variant-numeric: tabular-nums; }
.chip-meta:hover { background: var(--panel); }
.chip-meta.ativo { background: var(--navy); border-color: var(--navy); color: #fff; }

/* Aviso flutuante (Desfazer, meta concluída) */
.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 60; background: var(--navy); color: var(--on-navy); padding: 10px 12px 10px 16px; border-radius: var(--radius); display: flex; align-items: center; gap: 14px; font-size: 14px; box-shadow: 0 8px 24px rgba(10, 27, 55, .25); max-width: calc(100vw - 32px); }
.toast button { border: 1px solid rgba(255, 255, 255, .35); background: transparent; color: #fff; font-family: var(--label); font-size: 11px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; padding: 7px 12px; border-radius: var(--radius); white-space: nowrap; }
.toast button:hover { background: rgba(255, 255, 255, .1); }

/* Reportar problema */
.reportar-linha { text-align: center; margin-top: 10px; }
.link-discreto { color: var(--muted); font-weight: 400; font-size: 13px; }
.dlg-reporte { border: 0; border-radius: var(--radius); padding: 0; width: min(520px, calc(100vw - 32px)); box-shadow: 0 20px 60px rgba(0, 0, 0, .25); }
.dlg-reporte::backdrop { background: rgba(10, 27, 55, .45); }
.dlg-reporte form { padding: 22px; }
.dlg-reporte .motivos { display: flex; flex-direction: column; gap: 8px; margin: 16px 0 12px; font-size: 15px; }
.dlg-reporte .motivos label { display: flex; gap: 10px; align-items: center; cursor: pointer; }
.dlg-reporte textarea { width: 100%; min-height: 90px; border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px; font-size: 15px; resize: vertical; }
.dlg-reporte .acoes-dlg { display: flex; gap: 8px; justify-content: flex-end; }
.dlg-reporte input[type="radio"] { accent-color: var(--navy); width: 16px; height: 16px; }