:root {
  --bg: #f2f3f7;
  --surface: #ffffff;
  --surface-2: #ebedf4;
  --border: #dde1eb;
  --text: #171b28;
  --text-muted: #5c6478;

  --primary: #2f5da3;
  --accent-aoo: #2f5da3;
  --accent-aoo-soft: #e4ecfa;
  --accent-sd: #0f7a5c;
  --accent-sd-soft: #e1f3ea;
  --accent-sbc: #96591f;
  --accent-sbc-soft: #f6ecd9;
  --accent-admin: #565a76;
  --accent-admin-soft: #e7e8f1;

  --success: #1a7a4c;
  --success-soft: #e3f5ec;
  --danger: #b23b3b;
  --danger-soft: #fbe9e9;
  --warning: #93590a;
  --warning-soft: #fbf0dc;

  --radius: 14px;
  --shadow: 0 1px 2px rgba(20, 24, 38, .05), 0 8px 24px -12px rgba(20, 24, 38, .14);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e111a;
    --surface: #161b28;
    --surface-2: #1d2333;
    --border: #2a3145;
    --text: #e8ebf4;
    --text-muted: #99a1b8;

    --primary: #8ab4f5;
    --accent-aoo: #8ab4f5;
    --accent-aoo-soft: #1c2c4d;
    --accent-sd: #5fdcae;
    --accent-sd-soft: #103526;
    --accent-sbc: #d9a84e;
    --accent-sbc-soft: #3a2c12;
    --accent-admin: #a9acc4;
    --accent-admin-soft: #262a3a;

    --success: #59d29b;
    --success-soft: #103526;
    --danger: #ea8c8c;
    --danger-soft: #3a1717;
    --warning: #e7ad54;
    --warning-soft: #3a2c10;

    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px -12px rgba(0, 0, 0, .5);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "IBM Plex Sans", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent, var(--primary)); }

.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 14px 24px;
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.topbar-brand-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.topbar-sub {
  font-family: "IBM Plex Mono", monospace;
  font-size: .7rem;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}

.topbar-brand {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -.01em;
  color: var(--text);
  text-decoration: none;
}

.app {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 24px 80px;
}

h1 { font-size: 1.5rem; margin: 0 0 18px; letter-spacing: -.01em; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1.05rem; }

.section-title {
  font-family: "IBM Plex Mono", monospace;
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  margin: 32px 0 12px;
}

.back-link {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: .88rem;
  font-weight: 600;
}
.back-link:hover { color: var(--accent, var(--primary)); }

/* ---------- Cards do painel ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: border-color .15s, transform .1s, box-shadow .15s;
  border-left: 3px solid var(--accent, var(--primary));
  box-shadow: var(--shadow);
}
.card:hover { border-color: var(--accent, var(--primary)); transform: translateY(-1px); }

.card-disciplina { display: flex; gap: 14px; align-items: center; }
.card-body { flex: 1; min-width: 0; }
.card-nome { font-weight: 700; margin: 0 0 6px; }
.card-meta { color: var(--text-muted); font-size: .82rem; margin: 2px 0; }

.card-portfolio {
  border-left-color: var(--accent-admin);
  padding: 12px 16px;
}
.card-portfolio .card-nome { font-size: .95rem; }

.progress-ring { flex-shrink: 0; }

.chip {
  display: inline-block;
  padding: 3px 11px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 700;
  font-family: "IBM Plex Mono", monospace;
}
.chip-pendente { background: var(--warning-soft); color: var(--warning); }
.chip-entregue { background: var(--success-soft); color: var(--success); }
.chip-perdido { background: var(--danger-soft); color: var(--danger); }

/* ---------- Blocos de modulo ---------- */
.blocos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
}

.bloco {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  box-shadow: var(--shadow);
  transition: border-color .15s, transform .1s;
}
.bloco:hover { border-color: var(--accent, var(--primary)); }
.bloco:disabled { opacity: .45; cursor: not-allowed; }
.bloco:disabled:hover { border-color: var(--border); }
.bloco h3 { margin: 0 0 6px; font-size: 1rem; }
.bloco p { margin: 0; color: var(--text-muted); font-size: .85rem; }

/* ---------- Guia ---------- */
.tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}
.tab {
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  font-family: inherit;
  font-size: .82rem;
  font-weight: 600;
  transition: border-color .15s, background .15s, color .15s;
}
.tab:hover { border-color: var(--accent, var(--primary)); color: var(--text); }
.tab.active {
  background: var(--accent-soft, var(--surface-2));
  color: var(--accent, var(--primary));
  border-color: var(--accent, var(--primary));
}
.tab.lida::after { content: " ✓"; color: var(--success); }

.guia-corpo {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 28px;
  box-shadow: var(--shadow);
  max-width: 68ch;
}
.guia-corpo h1, .guia-corpo h2 { font-size: 1.15rem; margin: 26px 0 8px; }
.guia-corpo h1:first-child, .guia-corpo h2:first-child { margin-top: 0; }
.guia-corpo h3 { font-size: 1rem; margin: 18px 0 6px; }
.guia-corpo h4 { font-size: .95rem; margin: 16px 0 6px; }
.guia-corpo p { margin: 10px 0; }
.guia-corpo ul, .guia-corpo ol { padding-left: 20px; margin: 10px 0; }
.guia-corpo li { margin: 4px 0; }
.guia-corpo table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: .88rem; }
.guia-corpo th, .guia-corpo td { border: 1px solid var(--border); padding: 7px 10px; text-align: left; vertical-align: top; }
.guia-corpo th { background: var(--surface-2); font-weight: 700; color: var(--text-muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; }
.table-wrap { overflow-x: auto; margin: 12px 0; }
.guia-corpo pre { background: #171c28; color: #d8ddf0; padding: 12px 14px; border-radius: 8px; overflow-x: auto; font-family: "IBM Plex Mono", monospace; font-size: .82rem; }
.guia-corpo code { background: var(--surface-2); padding: 1px 6px; border-radius: 5px; font-size: .88em; font-family: "IBM Plex Mono", monospace; }
.guia-corpo pre code { background: none; padding: 0; }

blockquote.quote {
  margin: 16px 0;
  padding: 12px 16px;
  border-left: 3px solid var(--text-muted);
  background: var(--surface-2);
  border-radius: 0 10px 10px 0;
  font-size: .92rem;
}
blockquote.quote-reforco { border-left-color: var(--warning); background: var(--warning-soft); color: var(--warning); }
blockquote.quote-resumo { border-left-color: var(--accent, var(--primary)); background: var(--accent-soft, var(--surface-2)); color: var(--accent, var(--primary)); }

details.dropdown {
  margin-top: 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 16px;
}
details.dropdown summary {
  cursor: pointer;
  font-weight: 700;
  font-size: .86rem;
  color: var(--accent, var(--primary));
  font-family: "IBM Plex Mono", monospace;
}

.guia-acoes { display: flex; justify-content: space-between; margin-top: 22px; }

/* ---------- Botoes ---------- */
button.btn {
  font-family: inherit;
  border: none;
  border-radius: 10px;
  padding: 11px 20px;
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  background: var(--accent, var(--primary));
  color: #fff;
  transition: filter .1s, transform .1s;
}
button.btn:hover { filter: brightness(1.07); }
button.btn:active { transform: scale(.98); }
button.btn:disabled { opacity: .5; cursor: not-allowed; }
button.btn-outline { background: transparent; color: var(--accent, var(--primary)); border: 1px solid var(--accent, var(--primary)); }
button.btn-ghost { background: transparent; color: var(--text-muted); }

/* ---------- Quiz ---------- */
.quiz-progress {
  color: var(--text-muted);
  font-size: .82rem;
  font-family: "IBM Plex Mono", monospace;
  margin-bottom: 12px;
}
.quiz-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
}
.quiz-enunciado { font-size: 1.08rem; font-weight: 700; margin-bottom: 20px; }
.opcao {
  display: block;
  width: 100%;
  text-align: left;
  padding: 13px 16px;
  margin-bottom: 8px;
  border: 1.5px solid var(--border);
  border-radius: 11px;
  background: var(--surface);
  cursor: pointer;
  font-size: .92rem;
  font-family: inherit;
  color: var(--text);
  transition: border-color .12s, background .12s;
}
.opcao:hover:not(:disabled) { border-color: var(--accent, var(--primary)); }
.opcao:disabled { cursor: default; }
.opcao.correta { border-color: var(--success); background: var(--success-soft); }
.opcao.incorreta { border-color: var(--danger); background: var(--danger-soft); }
.opcao-naosei { color: var(--text-muted); border-style: dashed; }

.feedback-box {
  margin-top: 16px;
  padding: 13px 16px;
  border-radius: 11px;
  font-size: .89rem;
}
.feedback-box.ok { background: var(--success-soft); color: var(--success); }
.feedback-box.erro { background: var(--danger-soft); color: var(--danger); }

/* ---------- Resultado ---------- */
.resultado-nota {
  font-family: "IBM Plex Mono", monospace;
  font-size: 2.4rem;
  font-weight: 700;
  margin: 0;
}
.resultado-status { font-weight: 700; }
.resultado-status.aprovado { color: var(--success); }
.resultado-status.reprovado { color: var(--danger); }

.barra-unidade { margin-bottom: 14px; }
.barra-unidade-label { display: flex; justify-content: space-between; font-size: .85rem; margin-bottom: 5px; }
.barra-track { background: var(--surface-2); border-radius: 999px; height: 8px; overflow: hidden; }
.barra-fill { height: 100%; background: var(--accent, var(--primary)); border-radius: 999px; }

/* ---------- Historico / listas ---------- */
table.tabela {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
table.tabela th, table.tabela td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: .87rem; }
table.tabela th { background: var(--surface-2); color: var(--text-muted); font-size: .74rem; text-transform: uppercase; letter-spacing: .04em; font-weight: 700; }
table.tabela tr:last-child td { border-bottom: none; }

.prazo-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 13px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  box-shadow: var(--shadow);
}

.empty-state { color: var(--text-muted); padding: 26px; text-align: center; font-size: .92rem; }
.mensagem-info {
  background: var(--accent-soft, var(--surface-2));
  color: var(--accent, var(--primary));
  padding: 13px 16px;
  border-radius: 11px;
  font-size: .88rem;
  margin-bottom: 18px;
  border-left: 3px solid var(--accent, var(--primary));
}
.mensagem-erro {
  background: var(--danger-soft);
  color: var(--danger);
  padding: 13px 16px;
  border-radius: 11px;
  font-size: .88rem;
  margin-bottom: 18px;
  border-left: 3px solid var(--danger);
}