/* ================================
   BeeMembers | Global Stylesheet
   ================================ */

/* Paleta. As escalas (espaço, tipo, raio, camada, movimento) vivem em
   css/tokens.css e NÃO se repetem aqui: --radius, --nav-h e --sidebar-w eram
   declarados nos dois arquivos e, como este carrega depois, a cópia é que
   valia. Duas fontes da verdade para o mesmo número. */
:root {
  --bg:           #0a0a0a;
  --surface:      #141414;
  --card:         #1e1e1e;
  --card-hover:   #272727;
  --border:       #2e2e2e;
  --table-head-bg: var(--surface);
  --table-row-border: rgba(255,255,255,.08);
  --table-row-hover: rgba(255,255,255,.015);
  --table-row-zebra: transparent;
  --accent:       #3b82f6;
  --accent-dark:  #2563eb;
  --accent-light: #60a0f8;
  --text:         #e5e5e5;
  --text-muted:   #888;
  /* #555 media 2.47:1 sobre o cartão: serve para traço, não para texto, e
     estava carregando texto (número do módulo, data de liberação, breadcrumb).
     #8a8a8a passa em todas as superfícies escuras. */
  --text-faint:   #8a8a8a;
  --danger:       #ef4444;
  --danger-dark:  #dc2626;
  --success:      #10b981;
  --hero-overlay-side: rgba(10,10,10,.9);
  --hero-overlay-side-soft: rgba(10,10,10,.35);
  --hero-overlay-bottom: rgba(10,10,10,1);
  --hero-title-shadow: 0 2px 12px rgba(0,0,0,.5);
  --hero-pause-bg: rgba(0,0,0,.55);
  --hero-pause-bg-hover: rgba(0,0,0,.8);
  --hero-pause-border: rgba(255,255,255,.28);
  --hero-pause-border-hover: rgba(255,255,255,.5);
  --hero-pause-text: #fff;
  --hero-dot-bg: rgba(255,255,255,.35);
}

/* ================================
   LIGHT MODE
   ================================ */
body.light-mode {
  --bg:         #f0f0f2;
  --surface:    #ffffff;
  --card:       #ffffff;
  --card-hover: #f5f5f7;
  --border:     #dddde0;
  --table-head-bg: #fafafc;
  --table-row-border: #ececf1;
  --table-row-hover: color-mix(in srgb, var(--accent) 5%, white);
  --table-row-zebra: rgba(17,17,17,.018);
  --text:       #111111;
  --text-muted: #555555;
  --text-faint: #6a6a6a;   /* #aaa media 2.32:1 sobre branco */
  --hero-overlay-side: rgba(240,240,242,.94);
  --hero-overlay-side-soft: rgba(240,240,242,.5);
  --hero-overlay-bottom: rgba(240,240,242,.97);
  --hero-title-shadow: 0 2px 12px rgba(240,240,242,.65);
  --hero-pause-bg: rgba(255,255,255,.78);
  --hero-pause-bg-hover: rgba(255,255,255,.94);
  --hero-pause-border: rgba(17,17,17,.12);
  --hero-pause-border-hover: rgba(17,17,17,.22);
  --hero-pause-text: #111111;
  --hero-dot-bg: rgba(17,17,17,.22);
}
body.light-mode ::-webkit-scrollbar-track { background: #ebebed; }
body.light-mode ::-webkit-scrollbar-thumb { background: #c8c8cc; }
body.light-mode ::-webkit-scrollbar-thumb:hover { background: #aaaaaa; }
/* O :not() é o que deixa a barra escura da home (.navbar--escura) sobreviver ao
   layout branco: sem ele estas três regras repintariam a barra de claro por
   terem a mesma especificidade e virem depois. */
body.light-mode .navbar:not(.navbar--escura) {
  background: linear-gradient(to bottom, rgba(240,240,242,.97) 0%, transparent 100%);
}
body.light-mode .navbar:not(.navbar--escura).scrolled {
  background: rgba(240,240,242,.97);
}
body.light-mode .navbar:not(.navbar--escura) .navbar__user:hover { background: rgba(0,0,0,.06); }
body.light-mode .course-card__placeholder {
  background: linear-gradient(145deg, #e4e4e8, #d0d0d6);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }
ul { list-style: none; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #555; }

/* ================================
   TYPOGRAPHY
   ================================ */
h1 { font-size: 2rem; font-weight: 700; }
h2 { font-size: 1.5rem; font-weight: 600; }
h3 { font-size: 1.2rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }

.text-muted  { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-sm { font-size: .875rem; }
.text-xs { font-size: .75rem; }
.hidden { display: none !important; }

/* ================================
   BUTTONS
   ================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .6rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .9rem;
  transition: all .18s ease;
  white-space: nowrap;
  cursor: pointer;
  border: none;
  /* NÃO devolver `outline: none` aqui: ele empata em especificidade com a regra
     de foco de tokens.css e, por carregar depois, apagava o anel de foco de
     TODO botão do produto, inclusive o "Entrar" do login. */
  -webkit-tap-highlight-color: transparent;
}

/* Texto por cima da cor do portal vem do token, não literal: o dono escolhe a
   cor, e o contraste do rótulo depende dela. Padrão branco; os temas claros
   viram preto sozinhos (ver --on-accent em tokens.css). */
.btn-primary  { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-light); }

.btn-ghost {
  background: rgba(255,255,255,0.1);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.15);
}
.btn-ghost:hover { background: rgba(255,255,255,0.18); }

/* Vermelho e verde puros com texto branco dão 3.76:1 e 3.30:1; os tons escuros
   passam (4.83:1 e 5.02:1) e continuam lendo como perigo e confirmação. */
.btn-danger   { background: var(--danger-dark); color: #fff; }
.btn-danger:hover { background: #b42318; }

.btn-success  { background: #15803d; color: #fff; }
.btn-success:hover { background: #126b33; }

.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-outline:hover { color: var(--text); border-color: #555; }

.btn-sm { padding: .35rem .9rem; font-size: .8rem; }
.btn-xs { padding: .25rem .65rem; font-size: .75rem; }
.btn-icon { padding: .45rem; border-radius: 50%; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* ================================
   FORMS
   ================================ */
.form-group { display: flex; flex-direction: column; gap: .35rem; }

.form-label {
  font-size: .78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}

.form-input, .form-textarea, .form-select {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .6rem .9rem;
  color: var(--text);
  font-size: .9rem;
  transition: border-color .18s, box-shadow .18s;
  width: 100%;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent);
}

.form-textarea { resize: vertical; min-height: 90px; }

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .9rem center;
  padding-right: 2.25rem;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row.full { grid-template-columns: 1fr; }

/* ================================
   NAVBAR
   ================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  padding: 0 4%;
  background: linear-gradient(to bottom, rgba(0,0,0,.95) 0%, transparent 100%);
  transition: background .25s ease;
}

.navbar.scrolled {
  background: rgba(10,10,10,.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

/* Barra escura nos dois temas (a home pede, via mountNavbar({barraEscura})).
   Ela flutua sobre o hero, que é imagem escura com overlay preto: no layout
   branco o gradiente claro brigava com o banner e o texto do menu ficava
   ilegível na metade de cima do slide.

   Reabrir aqui os tokens de superfície/texto do tema escuro vale por TODA a
   barra de uma vez: menu, nome do aluno, dropdown e campo de busca já leem
   esses tokens, então nenhum controle precisa de override próprio (e um
   controle novo dentro da barra nasce certo). O `color` explícito é necessário
   porque `color` é herdado do body com o valor já resolvido do tema claro;
   redefinir a variável sozinha não o recalcularia. */
.navbar--escura {
  --surface:      #141414;
  --card:         #1e1e1e;
  --card-hover:   #272727;
  --border:       #2e2e2e;
  --text:         #e5e5e5;
  --text-muted:   #888888;
  --text-faint:   #8a8a8a;
  color: var(--text);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -.02em;
  margin-right: 2rem;
  flex-shrink: 0;
}

/* Logo do cliente, montada por marcaPortalHTML() (js/theme.js) na navbar e no
   login. Teto de altura e largura porque a arte enviada no admin pode vir em
   qualquer proporção, e uma imagem larga empurraria os links da navbar para
   fora da tela. Quem define o tamanho é o container, não a imagem. */
.marca-portal__img {
  display: block;
  object-fit: contain;
}

.navbar__logo .marca-portal__img { max-height: 34px; max-width: 180px; }

.navbar__links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: .875rem;
  flex: 1;
  min-width: 0;   /* sem isto o subtítulo nowrap empurra o menu para fora */
}

.navbar__links a {
  color: var(--text-muted);
  transition: color .18s;
  /* 21px de altura reprova nos 24px de alvo mínimo (WCAG 2.2 AA); a barra tem
     64px, então o padding cabe sem mudar o desenho. */
  display: inline-flex;
  align-items: center;
  min-height: var(--tap-min);
}
.navbar__links a:hover, .navbar__links a.active { color: var(--text); }

.navbar__right {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-left: auto;
  position: relative;
  min-width: 0;
  flex-shrink: 0;
}

.navbar__user {
  display: flex;
  align-items: center;
  gap: .5rem;
  cursor: pointer;
  padding: .25rem .5rem;
  border-radius: var(--radius);
  transition: background .18s;
}
.navbar__user:hover { background: rgba(255,255,255,.06); }

.navbar__avatar {
  width: 32px; height: 32px;
  background: var(--accent);
  color: var(--on-accent);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: .75rem;
  flex-shrink: 0;
}

.navbar__user-name {
  font-size: .85rem;
  max-width: 110px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.navbar__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .4rem 0;
  min-width: 150px;
  box-shadow: 0 8px 32px rgba(0,0,0,.6);
  z-index: var(--z-dropdown);
}

.navbar__dropdown a,
.navbar__dropdown button {
  display: block;
  width: 100%;
  padding: .55rem 1rem;
  font-size: .875rem;
  text-align: left;
  color: var(--text-muted);
  transition: all .15s;
}
.navbar__dropdown a:hover,
.navbar__dropdown button:hover {
  background: var(--card);
  color: var(--text);
}

/* ================================
   LOGIN PAGE
   ================================ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse 60% 40% at 50% -10%, color-mix(in srgb, var(--accent) 7%, transparent) 0%, transparent 60%),
    var(--bg);
  padding: 2rem 1rem;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 24px 64px rgba(0,0,0,.7);
}

.login-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -.02em;
  margin-bottom: 1.75rem;
}

.login-title { font-size: 1.3rem; font-weight: 700; margin-bottom: .2rem; }
.login-subtitle { color: var(--text-muted); font-size: .875rem; margin-bottom: 1.75rem; }

.login-form { display: flex; flex-direction: column; gap: 1.1rem; }

.login-alert {
  border-radius: var(--radius);
  padding: .7rem .9rem;
  font-size: .85rem;
}
.login-alert-error {
  background: var(--danger-tint);
  border: 1px solid rgba(239,68,68,.25);
  color: #fca5a5;
}
.login-alert-success {
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.25);
  color: #6ee7b7;
}

/* <button>, não <span onclick>: era o único caminho para recuperar a senha e
   não entrava no Tab nem respondia ao Enter. */
.login-link {
  color: var(--accent);
  font-size: .875rem;
  cursor: pointer;
  transition: color .15s;
  background: none;
  border: none;
  font-family: inherit;
  padding: var(--space-2);
}
.login-link:hover { color: var(--accent-light); text-decoration: underline; }

.login-logo .marca-portal__img { max-height: 42px; max-width: 220px; }

.login-help {
  margin-top: var(--space-4);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.login-help a { color: var(--accent); }

/* Campo com botão dentro (mostrar/ocultar senha) */
.field-with-toggle { position: relative; display: flex; align-items: center; }
.field-with-toggle .form-input { padding-right: 5.25rem; }
.field-toggle {
  position: absolute;
  right: .4rem;
  padding: .35rem .6rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  min-height: 32px;
}
.field-toggle:hover { color: var(--text); background: var(--accent-wash); }

/* ================================
   HERO BANNER
   ================================ */
.hero {
  position: relative;
  height: 68vh;
  min-height: 400px;
  overflow: hidden;
  background: var(--surface);
}

.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .8s ease;
}
.hero__slide.active { opacity: 1; }

.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
  display: block;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, var(--hero-overlay-side) 0%, var(--hero-overlay-side-soft) 55%, transparent 100%),
    linear-gradient(to top, var(--hero-overlay-bottom) 0%, transparent 28%);
}

.hero__content {
  position: absolute;
  bottom: 22%;
  left: 4%;
  max-width: 480px;
}

.hero__title {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1rem;
  text-shadow: var(--hero-title-shadow);
}

.hero__actions { display: flex; gap: .75rem; flex-wrap: wrap; }

.hero__controls {
  position: absolute;
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: .75rem;
}

.hero__dots {
  display: flex;
  gap: .5rem;
}

/* Movimento automático precisa de um jeito explícito de parar (WCAG 2.2.2):
   pausar no hover não existe em tela de toque, e no leitor de tela nem no
   desktop. */
.hero__pause {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--hero-pause-bg);
  border: 1px solid var(--hero-pause-border);
  color: var(--hero-pause-text);
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.hero__pause:hover {
  background: var(--hero-pause-bg-hover);
  border-color: var(--hero-pause-border-hover);
}
.hero__pause svg { flex-shrink: 0; }

.hero__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--hero-dot-bg);
  cursor: pointer;
  transition: all .25s;
}
.hero__dot.active {
  background: var(--accent);
  width: 18px;
  border-radius: 3px;
}

/* ================================
   BUSCA DE AULAS (campo na navbar)
   ================================ */
/* Fica dentro do .navbar__right, à esquerda do nome do aluno. Montado por
   mountNavbar({comBusca:true}) em js/ui.js. */
.navbar__busca {
  position: relative;
  display: flex;
  align-items: center;
  width: 230px;
  transition: width var(--dur-fast) var(--ease-out);
}
.navbar__busca:focus-within { width: 300px; }

.navbar__busca-icone {
  position: absolute;
  left: .65rem;
  display: inline-flex;
  color: var(--text-faint);
  pointer-events: none;
}

.navbar__busca-input {
  width: 100%;
  height: 38px;
  padding: 0 2.3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--card);
  color: var(--text);
  font-size: var(--text-sm);
  transition: border-color .18s, box-shadow .18s;
}
.navbar__busca-input::placeholder { color: var(--text-faint); }
.navbar__busca-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}
/* O ✕ nativo do WebKit duplicaria o botão de limpar, que tem rótulo. */
.navbar__busca-input::-webkit-search-cancel-button { -webkit-appearance: none; display: none; }

.navbar__busca-limpar {
  position: absolute;
  right: .25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  color: var(--text-muted);
  cursor: pointer;
}
.navbar__busca-limpar:hover { color: var(--text); background: var(--accent-wash); }

/* Sem o hero, as fileiras não têm no que encaixar: o -60px vira conteúdo
   escondido atrás da navbar. */
body.modo-busca .content-rows {
  margin-top: 0;
  padding-top: calc(var(--nav-h) + var(--space-5));
}

.busca__status {
  padding: 0 4%;
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.busca-resultados {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: 0 4% var(--space-6);
}

.resultado-aula {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text);
  transition: background var(--dur-fast), border-color var(--dur-fast);
}
a.resultado-aula:hover { background: var(--card-hover); border-color: var(--accent-border); }

.resultado-aula__icone {
  display: inline-flex;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}

.resultado-aula__corpo {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;      /* sem isto o trecho longo estoura o cartão */
  flex: 1;
}

.resultado-aula__caminho {
  font-size: var(--text-xs);
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.resultado-aula__nome {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
}

/* Duas linhas: o trecho serve para reconhecer a aula, não para ler o prompt. */
.resultado-aula__trecho {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: var(--leading-normal);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.resultado-aula__onde {
  color: var(--text-faint);
  font-weight: var(--weight-semibold);
  margin-right: .35rem;
}

.resultado-aula__ir {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  margin-top: 2px;
  font-size: var(--text-sm);
  color: var(--text-faint);
}

.resultado-aula--travada { background: transparent; }
.resultado-aula--travada .resultado-aula__icone { color: var(--text-faint); }
/* Mesma cor do aviso de módulo travado da prévia (--warning reprova
   contraste no layout branco). */
.resultado-aula__travada-em {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-muted);
  margin-top: 2px;
}

/* A margem negativa devolve o que o padding empurrou: sem ela, o realce
   abre um buraco no meio da frase, como se houvesse espaço a mais. */
.busca-resultados mark {
  background: var(--accent-tint);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: .05em .15em;
  margin: 0 -.15em;
}

/* Na barra estreita o campo fica recolhido na lupa e abre por cima do nome ao
   receber foco (ou enquanto tiver texto). Cabendo os três lado a lado, o nome
   do aluno sairia da tela. 16px no input porque abaixo disso o iOS dá zoom. */
@media (max-width: 820px) {
  .navbar__busca { width: 38px; }

  /* Recolhido, o padding de 2.3rem não cabe em 38px e o input vazaria por
     cima do avatar (o navegador não encolhe o campo abaixo do próprio
     padding). Recolhido = sem padding, lupa no centro. */
  .navbar__busca-input {
    padding: 0;
    font-size: var(--text-base);     /* abaixo de 16px o iOS dá zoom no foco */
    color: transparent;
  }
  .navbar__busca-input::placeholder { color: transparent; }
  .navbar__busca-icone { left: 50%; transform: translateX(-50%); }

  .navbar__busca:focus-within,
  .navbar__busca.com-texto {
    position: absolute;
    right: 0;
    z-index: var(--z-dropdown);
    width: min(70vw, 320px);
  }
  .navbar__busca:focus-within .navbar__busca-input,
  .navbar__busca.com-texto .navbar__busca-input { padding: 0 2.3rem; color: var(--text); }
  .navbar__busca:focus-within .navbar__busca-input::placeholder { color: var(--text-faint); }
  .navbar__busca:focus-within .navbar__busca-icone,
  .navbar__busca.com-texto .navbar__busca-icone { left: .65rem; transform: none; }
}

@media (max-width: 700px) {
  .resultado-aula__ir { display: none; }
}

/* ================================
   CONTENT ROWS (Netflix-style)
   ================================ */
.content-rows {
  position: relative;
  z-index: var(--z-base);
  padding: 0 0 4rem;
  margin-top: -60px;
}

.content-row { margin-bottom: 1.5rem; }

.content-row__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .5rem 4%;
}

.content-row__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

.content-row__see-all {
  font-size: .75rem;
  color: var(--accent);
  opacity: 0;
  transition: opacity .2s;
}
.content-row:hover .content-row__see-all { opacity: 1; }

.content-row__slider-wrap {
  position: relative;
}

.content-row__slider-wrap::before,
.content-row__slider-wrap::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 160px;
  pointer-events: none;
  z-index: 5;
  opacity: 0;
  transition: opacity .25s;
}
.content-row__slider-wrap::before {
  left: 0;
  background: linear-gradient(to right, var(--bg) 20%, transparent 100%);
}
.content-row__slider-wrap::after {
  right: 0;
  background: linear-gradient(to left, var(--bg) 20%, transparent 100%);
}
.content-row__slider-wrap.has-prev::before { opacity: 1; }
.content-row__slider-wrap.has-next::after  { opacity: 1; }

/* Nav buttons live in the header, not over the slider */
.content-row__nav {
  display: flex;
  gap: .35rem;
  margin-left: auto;
}

.row-nav-btn {
  width: 30px; height: 30px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
  flex-shrink: 0;
}
.row-nav-btn:hover { background: var(--card-hover); color: var(--text); border-color: #555; }
.row-nav-btn:disabled { opacity: .3; cursor: not-allowed; }

.content-row__slider {
  display: flex;
  gap: .75rem;
  overflow-x: auto;
  /* horizontal as margin (keeps fades aligned to content);
     vertical as padding so the hover zoom isn't clipped by overflow-y */
  margin: 0 4%;
  padding: 1rem 0;
  scrollbar-width: none;
  -ms-overflow-style: none;
  scroll-snap-type: x mandatory;
}
.content-row__slider::-webkit-scrollbar { display: none; }

/* ================================
   COURSE CARD
   ================================ */
.course-card {
  flex-shrink: 0;
  width: 200px;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform .28s ease;
  background: var(--card);
  scroll-snap-align: start;
  isolation: isolate;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

@media (min-width: 640px)  { .course-card { width: 240px; } }
@media (min-width: 1024px) { .course-card { width: 280px; } }
@media (min-width: 1440px) { .course-card { width: 320px; } }

.course-card:hover { transform: scale(1.06); z-index: 10; }
.course-card:hover .course-card__overlay { opacity: 1; }

/* O nome do curso vive dentro do overlay. Sem as duas regras abaixo ele só
   existia no :hover: em tela de toque o aluno via uma fileira de capas sem
   texto nenhum, e no teclado o botão recebia foco atrás de um painel invisível. */
.course-card:focus-within { transform: scale(1.06); z-index: 10; }
.course-card:focus-within .course-card__overlay { opacity: 1; }


/* Edge cards grow inward so they aren't clipped by the slider's overflow.
   :only-child must win over :last-child, so it grows from the left like :first-child. */
.course-card:first-child,
.course-card:only-child { transform-origin: left center; }
.course-card:last-child:not(:only-child) { transform-origin: right center; }

.course-card__img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}

.course-card__placeholder {
  width: 100%;
  aspect-ratio: 4/5;
  background: linear-gradient(145deg, #1e1e1e, #2a2a2a);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  color: var(--text-faint);
  font-size: .75rem;
  text-align: center;
  padding: 1rem;
  border-radius: inherit;
}

.course-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.96) 0%, rgba(0,0,0,.25) 55%, transparent 100%);
  opacity: 0;
  transition: opacity .22s;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: .9rem .7rem .7rem;
  border-radius: inherit;
}

/* Em tela de toque não existe hover, então o nome do curso ficava invisível:
   aqui o overlay é permanente. Precisa vir DEPOIS da regra acima: media query
   não soma especificidade, e a regra base, sendo posterior, anulava esta. */
@media (hover: none) {
  .course-card__overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(0,0,0,.94) 0%, rgba(0,0,0,.35) 48%, transparent 78%);
  }
  /* Com o overlay sempre aberto, a barra de progresso brigaria pelo mesmo
     canto; sobe para o topo da capa em vez de sumir. */
  .course-card__progress {
    top: 0; bottom: auto;
    background: linear-gradient(to bottom, rgba(0,0,0,.88), transparent);
  }
}

.course-card__name {
  font-size: .9rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: .5rem;
  color: #fff;
}

.course-card__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--on-accent);
  padding: .42rem;
  border-radius: 4px;
  font-size: .82rem;
  font-weight: 700;
  width: 100%;
  transition: background .15s;
}
.course-card__btn:hover { background: var(--accent-light); }

.course-card__lock {
  position: absolute;
  top: 8px; right: 8px;
  background: rgba(0,0,0,.65);
  border-radius: 50%;
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ================================
   AULA (LESSON) PAGE
   ================================ */
.aula-layout {
  display: grid;
  /* minmax(0,…) porque `70%` sozinho ainda tem min-width auto: o nome do curso
     e o da aula (ambos nowrap) empurravam a coluna a 527px numa tela de 500px,
     e com overflow-x:hidden no body isso vira conteúdo cortado, não rolagem. */
  grid-template-columns: minmax(0, 70%) minmax(0, 30%);
  min-height: 100vh;
  padding-top: var(--nav-h);
}
.aula-main { min-width: 0; }

@media (max-width: 900px) {
  .aula-layout { grid-template-columns: minmax(0, 1fr); }
  .aula-sidebar {
    order: 2;
    max-height: none;
    position: static;
    border-left: none;
    border-top: 1px solid var(--border);
  }
}

@media (max-width: 600px) {
  .aula-topbar  { padding: .85rem 1rem; }
  .playbar      { padding: .75rem 1rem; }
  .aula-content { padding: 1.1rem 1rem 2rem; }
  /* Icon-only tabs on phones (like the mobile reference) */
  .tab-btn { padding: .6rem .8rem; }
  .tab-btn__label { display: none; }
  .aula-tabbar { gap: .5rem; }
}

.video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: #000;
}
.video-wrapper iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* TOPBAR / BREADCRUMB (above video) */
.aula-topbar {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: 1rem 1.5rem;
}
.aula-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  flex-shrink: 0;
  transition: color .15s, border-color .15s, background .15s;
}
.aula-back:hover { color: var(--text); border-color: var(--accent); }

.aula-crumbs {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .85rem;
  min-width: 0;
}
.aula-crumb-course  { color: var(--text); font-weight: 600; white-space: nowrap; }
.aula-crumb-sep     { color: var(--text-faint); }
.aula-crumb-current {
  color: var(--text-muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* PLAYBACK BAR (prev/next + autoplay) */
.playbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .85rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.playbar__nav { display: flex; gap: .5rem; }
.playbar__skip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  transition: border-color .15s, background .15s, opacity .15s;
}
.playbar__skip:hover:not(:disabled) { border-color: var(--accent); background: var(--card-hover); }
.playbar__skip:disabled { opacity: .35; cursor: default; }

.playbar__autoplay {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: .85rem;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
}

/* Toggle switch */
.switch { position: relative; display: inline-block; width: 38px; height: 20px; flex-shrink: 0; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch__slider {
  position: absolute; inset: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: background .18s, border-color .18s;
}
.switch__slider::before {
  content: "";
  position: absolute;
  width: 14px; height: 14px;
  left: 2px; top: 2px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: transform .18s, background .18s;
}
.switch input:checked + .switch__slider { background: var(--accent); border-color: var(--accent); }
.switch input:checked + .switch__slider::before { transform: translateX(18px); background: #fff; }

.aula-content { padding: 1.25rem 1.5rem 2rem; }

.aula-title  { font-size: 1.3rem; font-weight: 700; margin-bottom: .2rem; }
.aula-meta   { color: var(--text-muted); font-size: .8rem; margin-bottom: 1.25rem; }

/* TAB BAR + lesson actions */
.aula-tabbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}
.aula-actions { display: flex; align-items: center; gap: .5rem; flex-shrink: 0; padding-bottom: .35rem; }

/* "Marcar como concluída": green button (like the reference) */
.btn-concluir {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .95rem;
  font-size: .82rem;
  font-weight: 600;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--success) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--success) 45%, transparent);
  color: var(--success);
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, border-color .15s, color .15s, opacity .15s;
}
.btn-concluir:hover:not(:disabled) { background: color-mix(in srgb, var(--success) 22%, transparent); }
.btn-concluir:disabled { opacity: .55; cursor: default; }
.btn-concluir svg { flex-shrink: 0; }
.btn-concluir.is-done {
  background: var(--success);
  border-color: var(--success);
  color: var(--on-success);
}

/* TABS */
.tabs {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .65rem 1.1rem;
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: all .18s;
  white-space: nowrap;
  flex-shrink: 0;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* LESSON SIDEBAR */
.aula-sidebar {
  background: var(--surface);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  max-height: calc(100vh - var(--nav-h));
  position: sticky;
  top: var(--nav-h);
}

.sidebar-hd {
  padding: .9rem 1.1rem;
  border-bottom: 1px solid var(--border);
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-muted);
  background: var(--surface);
}

.sidebar-course-name {
  padding: .85rem 1.1rem;
  font-size: .875rem;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  line-height: 1.3;
}

.module-block { border-bottom: 1px solid var(--border); }

/* <button> e não <div>: o cabeçalho abre e fecha a lista de aulas, então
   precisa do Enter, do Espaço e do aria-expanded que só o nativo dá. */
.module-block__hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: .75rem 1.1rem;
  cursor: pointer;
  font: inherit;
  font-size: .8rem;
  font-weight: 700;
  color: inherit;
  text-align: left;
  background: none;
  border: none;
  user-select: none;
  transition: background .15s;
  gap: .5rem;
}
.module-block__hd:hover { background: var(--card); }

.module-block__num {
  font-size: .7rem;
  color: var(--text-faint);
  flex-shrink: 0;
}

.module-block__title { flex: 1; line-height: 1.3; }

.module-block__chevron,
.module-block__lock {
  display: inline-flex;
  color: var(--text-faint);
  transition: transform .2s;
  flex-shrink: 0;
}

/* Aviso de módulo ainda não liberado, dentro da lista */
.module-locked-note {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: .6rem 1.1rem;
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.module-locked-note svg { flex-shrink: 0; }
.module-block.open .module-block__chevron { transform: rotate(180deg); }

/* Módulo bloqueado por drip (liberação por turma) */
.module-block--locked .module-block__hd { cursor: default; color: var(--text-faint); }
.module-block--locked .module-block__hd:hover { background: transparent; }
.module-block--locked .module-block__title { opacity: .7; }

.module-block__lessons { display: none; }
.module-block.open .module-block__lessons { display: block; }

.lesson-link {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .6rem 1.1rem .6rem 1.4rem;
  font-size: .8rem;
  color: var(--text-muted);
  transition: all .15s;
  cursor: pointer;
  line-height: 1.35;
  border-left: 2px solid transparent;
}
.lesson-link:hover { background: var(--card); color: var(--text); }
.lesson-link.active {
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  color: var(--text);
  border-left-color: var(--accent);
}

.lesson-link {
  text-decoration: none;   /* virou <a>: o sublinhado padrão não cabe na lista */
}

.lesson-link__icon {
  display: inline-flex;
  flex-shrink: 0;
  color: var(--text-faint);
}
.lesson-link.active .lesson-link__icon { color: var(--accent); }
.lesson-link.done   .lesson-link__icon { color: var(--success); }

.lesson-link__name { flex: 1; min-width: 0; }

.lesson-link__check {
  display: inline-flex;
  flex-shrink: 0;
  color: var(--success);
}

/* COURSE PROGRESS card */
.course-progress {
  margin: 1rem 1.1rem 1.5rem;
  padding: .9rem 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.course-progress__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .8rem;
  color: var(--text-muted);
  margin-bottom: .55rem;
}
.course-progress__row span:last-child { color: var(--text); font-weight: 700; }

.progress-bar {
  height: 6px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar__fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  border-radius: 999px;
  transition: width .3s ease;
}

/* Comments */
.comment-form { display: flex; gap: .75rem; margin-bottom: 1.5rem; }

.comment-form__input {
  flex: 1;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .65rem .9rem;
  color: var(--text);
  font-size: .85rem;
  resize: none;
  height: 70px;
  transition: border-color .18s;
}
.comment-form__input:focus { border-color: var(--accent); }

.comment {
  display: flex;
  gap: .7rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid rgba(46,46,46,.5);
}
.comment:last-child { border-bottom: none; }

.comment__avatar {
  flex-shrink: 0;
  width: 34px; height: 34px;
  background: var(--card);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  font-weight: 700;
  color: var(--accent);
  border: 1px solid var(--border);
}

.comment__body { flex: 1; min-width: 0; }
.comment__meta { font-size: .72rem; color: var(--text-muted); margin-bottom: .25rem; }
.comment__name { color: var(--text); font-weight: 600; margin-right: .5rem; }
.comment__text { font-size: .85rem; line-height: 1.5; word-break: break-word; }

/* Arquivos (files) tab */
.file-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .75rem 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: .5rem;
  transition: border-color .18s;
}
.file-item:hover { border-color: var(--accent); }

/* Prompt tab */
.prompt-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  font-size: .875rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-top: .75rem;
  font-size: .8rem;
  color: var(--accent);
  cursor: pointer;
  transition: color .15s;
}
.copy-btn:hover { color: var(--accent-light); }

/* Bloco de código reutilizável: leitura e edição */
.code-card,
.prompt-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  overflow: hidden;
}
.code-card__hd,
.prompt-card__hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  padding: .85rem 1.1rem;
  border-bottom: 1px solid var(--border);
}
.code-card__meta {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  min-width: 0;
}
.code-card__meta-mark {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .72rem;
  font-weight: 700;
  color: var(--text-faint);
}
.code-card__title,
.prompt-card__title {
  font-size: .9rem;
  font-weight: 700;
  color: var(--text);
}
.code-card__copy,
.prompt-card__copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: color .15s, background .15s;
}
.code-card__copy:hover,
.prompt-card__copy:hover { color: var(--text); background: rgba(127,127,127,.12); }
.code-card__body,
.prompt-card__body {
  padding: 1.1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .8rem;
  line-height: 1.65;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 60vh;
  overflow-y: auto;
}
.code-card__body {
  margin: 0;
}
.code-card--editable {
  transition: border-color .18s, box-shadow .18s;
}
.code-card--editable:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent);
}
.code-card--editable .code-card__hd {
  border-bottom-color: transparent;
}
.code-card__editor {
  width: 100%;
  min-height: 150px;
  padding: 1.05rem 1.1rem;
  border: 0;
  border-top: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  color: var(--text);
  resize: vertical;
}
.code-card__editor:focus {
  border-top-color: var(--accent);
  box-shadow: none;
}

/* ================================
   ADMIN LAYOUT
   ================================ */
.admin-layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.admin-sidebar__logo {
  padding: 1.25rem 1.1rem;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: .4rem;
  flex-shrink: 0;
}

/* A logo existe em duas artes monocromaticas (branca e preta). Qual aparece
   depende do tema, e o tema e uma classe no body, nao prefers-color-scheme:
   por isso a troca e por CSS nas duas imagens, e nao um src trocado no boot,
   que piscaria a arte errada e nao acompanharia o layout_branco em runtime.
   So uma fica visivel, entao display:none tira a outra da arvore de
   acessibilidade e o alt repetido nao e anunciado duas vezes. */
.brand-logo { display: block; width: auto; max-width: 100%; }
.brand-logo--fundo-claro { display: none; }
body.light-mode .brand-logo--fundo-escuro { display: none; }
body.light-mode .brand-logo--fundo-claro { display: block; }

.admin-sidebar__logo .brand-logo { height: 26px; }

.admin-sidebar__nav { flex: 1; padding: .5rem 0; }

.admin-nav-btn {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .7rem 1.1rem;
  font-size: .85rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all .15s;
  border-left: 2px solid transparent;
  user-select: none;
  width: 100%;
  text-align: left;
  background: none;
  border-top: none;
  border-right: none;
  border-bottom: none;
}
.admin-nav-btn:hover { background: var(--card); color: var(--text); }
.admin-nav-btn.active {
  background: color-mix(in srgb, var(--accent) 22%, var(--surface));
  color: var(--text);
  border-left-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent-border);
}
.admin-nav-btn.active:hover { background: color-mix(in srgb, var(--accent) 28%, var(--surface)); }
.admin-nav-btn svg { flex-shrink: 0; }
.admin-nav-btn.active svg { color: var(--accent); }

.admin-sidebar__footer {
  border-top: 1px solid var(--border);
  padding: .5rem 0;
}

.admin-main {
  padding: 1.75rem 2rem;
  overflow-y: auto;
  min-width: 0;
}

.admin-view { display: none; }
.admin-view.active { display: block; }

.admin-view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.admin-view-header h2 { font-size: 1.35rem; }

/* ================================
   DASHBOARD METRICS
   ================================ */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.metric-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}
.metric-card__icon {
  width: 36px; height: 36px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: .75rem;
  color: var(--accent);
}
.metric-card__label {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text-muted);
  margin-bottom: .3rem;
}
.metric-card__value {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}
.metric-card__sub {
  font-size: .72rem;
  color: var(--text-faint);
  margin-top: .3rem;
}

/* ================================
   DATA TABLES
   ================================ */
.table-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .9rem 1.1rem;
  border-bottom: 1px solid var(--border);
  gap: .75rem;
  flex-wrap: wrap;
}

.table-search {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .45rem .85rem;
  font-size: .875rem;
  color: var(--text);
  width: 220px;
  transition: border-color .18s;
}
.table-search:focus { border-color: var(--accent); }

.table-title {
  font-size: .875rem;
  font-weight: 700;
  color: var(--text);
}

.table-scroll { overflow-x: auto; }

.data-table { width: 100%; border-collapse: collapse; }

.data-table th {
  text-align: left;
  padding: .65rem 1.1rem;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text-muted);
  background: var(--table-head-bg);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table tbody tr {
  transition: background .15s ease;
}

.data-table tbody tr:nth-child(even) td {
  background: var(--table-row-zebra);
}

.data-table td {
  padding: .75rem 1.1rem;
  font-size: .85rem;
  border-bottom: 1px solid var(--table-row-border);
  vertical-align: middle;
  transition: background .15s ease, border-color .15s ease;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: var(--table-row-hover); }
.data-table tbody tr.row-clickable:hover td { background: var(--accent-wash); }

.table-actions { display: flex; gap: .4rem; align-items: center; }

.badge {
  display: inline-block;
  padding: .2rem .55rem;
  border-radius: 99px;
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.badge-success  { background: rgba(16,185,129,.14); color: #6ee7b7; }
.badge-danger   { background: var(--danger-tint);  color: #fca5a5; }
.badge-warning  { background: rgba(245,158,11,.14); color: #fcd34d; }
.badge-default  { background: var(--card); color: var(--text-muted); }

/* ================================
   MODALS
   ================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.78);
  z-index: var(--z-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  backdrop-filter: blur(3px);
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 80px rgba(0,0,0,.7);
  display: flex;
  flex-direction: column;
}
.modal-lg { max-width: 800px; }
.modal-xl { max-width: 1000px; }

.modal__hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.4rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.modal__hd h3 { font-size: .95rem; font-weight: 700; }

.modal__close {
  color: var(--text-muted);
  font-size: 1.3rem;
  line-height: 1;
  transition: color .15s;
  padding: .2rem;
}
.modal__close:hover { color: var(--text); }

.modal__body {
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  overflow-y: auto;
  flex: 1;
}

.modal__ft {
  display: flex;
  justify-content: flex-end;
  gap: .65rem;
  padding: 1.1rem 1.4rem;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

/* Course editor */
.modules-editor { display: flex; flex-direction: column; gap: .5rem; }

.mod-row {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.mod-row__hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .65rem .9rem;
  cursor: pointer;
  gap: .5rem;
}
.mod-row__hd:hover { background: rgba(255,255,255,.03); }
.mod-row__title { font-size: .85rem; font-weight: 700; flex: 1; }

.mod-row__body { display: none; border-top: 1px solid var(--border); }
.mod-row.open .mod-row__body { display: block; }

.lesson-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .55rem .9rem .55rem 1.75rem;
  font-size: .8rem;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(46,46,46,.4);
  gap: .5rem;
}
.lesson-row:last-child { border-bottom: none; }
.lesson-row__title { flex: 1; }

.lesson-row-add {
  padding: .55rem .9rem .55rem 1.75rem;
  font-size: .8rem;
  color: var(--accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: .4rem;
  transition: background .15s;
}
.lesson-row-add:hover { background: color-mix(in srgb, var(--accent) 5%, transparent); }

/* Banner grid */
.banners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.banner-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.banner-card__img {
  width: 100%;
  height: 130px;
  object-fit: cover;
  background: var(--card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-faint);
  font-size: .8rem;
}

.banner-card__body { padding: .9rem; }
.banner-card__name { font-weight: 700; font-size: .875rem; margin-bottom: .3rem; }
.banner-card__ft { display: flex; align-items: center; justify-content: space-between; margin-top: .75rem; }

/* Integration cards */
.integrations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.video-integrations-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
@media (max-width: 720px) {
  .video-integrations-grid { grid-template-columns: 1fr; }
}

.integration-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}
.integration-card__logo {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: .75rem;
  color: var(--text);
}
.integration-card__desc {
  font-size: .8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.5;
}

/* Card do hub de Integrações que abre a tela da plataforma.
   É um <button> e não uma <div> com onclick: assim ele entra na ordem de
   tabulação, responde ao Enter e é anunciado como acionável pelo leitor de
   tela sem nenhum atributo extra. O reset abaixo desfaz o que o agente do
   usuário aplica em botão (centralizar texto, herdar fonte, cursor). */
.integration-card--link {
  display: flex;
  flex-direction: column;
  width: 100%;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out),
              background    var(--dur-fast) var(--ease-out);
}
.integration-card--link:hover {
  border-color: var(--accent-border);
  background: var(--accent-wash);
}
.integration-card--link .integration-card__desc { flex: 1; }

.integration-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
}
.integration-card__go {
  display: inline-flex;
  align-items: center;
  gap: .2rem;
  font-size: .8rem;
  font-weight: var(--weight-semibold);
  color: var(--accent);
}

/* Volta para a tela anterior, acima do título. Discreto por padrão: quem já
   sabe onde está não precisa que ele dispute atenção com o h2. */
.breadcrumb-back {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  background: none;
  border: 0;
  padding: 0;
  margin-bottom: .6rem;
  font: inherit;
  font-size: .82rem;
  color: var(--text-muted);
  cursor: pointer;
}
.breadcrumb-back:hover { color: var(--accent); }

/* Passos de configuração de uma integração.
   O número sai do contador em vez do marcador nativo do <ol>: assim ele ganha
   o disco de destaque e o texto alinha numa coluna só, mesmo quebrando linha.
   A cor vem de --accent-*: o portal é colorível pelo dono e um azul cravado
   aqui apareceria num portal verde. */
.setup-steps {
  list-style: none;
  counter-reset: passo;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.setup-steps li {
  counter-increment: passo;
  position: relative;
  padding-left: 2rem;
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
}
.setup-steps li::before {
  content: counter(passo);
  position: absolute;
  left: 0;
  top: 0;
  width: 1.4rem;
  height: 1.4rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-tint);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
}
.setup-steps strong { color: var(--text); font-weight: var(--weight-semibold); }

/* Panda Video: grade de miniaturas no modal de aula */
.panda-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: .75rem;
  max-height: 340px;
  overflow-y: auto;
}
.panda-item {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  text-align: left;
  padding: .4rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s;
}
.panda-item:hover { border-color: var(--accent); }
.panda-item.is-selected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.panda-item.is-disabled { opacity: .5; cursor: not-allowed; }
.panda-item__thumb {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  background: var(--card);
  border-radius: calc(var(--radius) - 2px);
  overflow: hidden;
}
.panda-item__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.panda-item__dur {
  position: absolute; bottom: 4px; right: 4px;
  background: rgba(0,0,0,.75); color: #fff;
  font-size: .65rem; padding: 1px 5px; border-radius: 4px;
}
.panda-item__title {
  font-size: .72rem; color: var(--text); line-height: 1.3;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.panda-item__badge { font-size: .62rem; color: var(--text-muted); }
.panda-selected {
  display: flex; align-items: center; gap: .6rem;
  padding: .5rem .75rem; margin-bottom: .75rem;
  border: 1px solid var(--accent); border-radius: var(--radius);
}
.panda-selected img { width: 56px; height: 32px; object-fit: cover; border-radius: 4px; }
.panda-selected span { flex: 1; font-size: .8rem; color: var(--text); }
/* O ✓ era um caractere solto: não herdava a cor e o leitor de tela lia
   "marca de seleção" no meio da frase. */
.panda-selected__ok { display: inline-flex; align-items: center; gap: var(--space-2); }
.panda-selected__ok svg { color: var(--success); flex-shrink: 0; }

/* Logo das integrações: ícone + nome, alinhados */
.integration-card__logo { display: flex; align-items: center; gap: var(--space-2); }
.integration-card__logo svg { flex-shrink: 0; }
/* Badges de privacidade do Vimeo (sobre o card de vídeo) */
.vimeo-badge {
  font-size: .6rem; font-weight: 600; line-height: 1;
  padding: .2rem .4rem; border-radius: 4px; white-space: nowrap;
}
.vimeo-badge--warn { color: #b45309; background: rgba(245, 158, 11, .18); }
.vimeo-badge--block { color: #b91c1c; background: rgba(239, 68, 68, .18); }

/* ================================
   STATES
   ================================ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  color: var(--text-muted);
  gap: .75rem;
}
.empty-state svg { opacity: .25; }
.empty-state p { font-size: .875rem; }

.loading-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem;
}

.spinner {
  width: 30px; height: 30px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .65s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ================================
   TOAST
   ================================ */
.toast-wrap {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: .4rem;
  pointer-events: none;
}

.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .7rem 1.1rem;
  font-size: .85rem;
  box-shadow: 0 8px 24px rgba(0,0,0,.5);
  animation: toastIn .2s ease;
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: .5rem;
  min-width: 220px;
  max-width: 340px;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error   { border-left: 3px solid var(--danger); }
.toast.info    { border-left: 3px solid var(--accent); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ================================
   RESPONSIVE
   ================================ */
@media (max-width: 768px) {
  .admin-layout { grid-template-columns: 1fr; }

  .admin-sidebar {
    position: fixed;
    left: -100%;
    top: 0;
    height: 100%;
    z-index: var(--z-backdrop);
    transition: left .25s ease;
    width: var(--sidebar-w);
  }
  .admin-sidebar.open { left: 0; }

  .admin-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: calc(var(--z-backdrop) - 1);
  }
  .admin-sidebar-overlay.open { display: block; }

  .admin-mobile-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: .9rem 1rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
  }

  .admin-mobile-bar__brand {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    min-width: 0;
    font-weight: 800;
    font-size: 1rem;
    color: var(--accent);
  }
  .admin-mobile-bar__brand .brand-logo { height: 20px; }

  .admin-main { padding: 1rem; }
  .hero__title { font-size: 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 769px) {
  .admin-mobile-bar { display: none; }
  .admin-sidebar-overlay { display: none !important; }
}

/* ================================
   COURSE PREVIEW MODAL
   ================================ */
.course-preview-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.78);
  z-index: var(--z-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  backdrop-filter: blur(4px);
  animation: fadeInPreviewBd .18s ease;
}
@keyframes fadeInPreviewBd { from { opacity: 0; } to { opacity: 1; } }

.course-preview {
  background: var(--surface);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 660px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 32px 96px rgba(0,0,0,.85);
  position: relative;
  display: flex;
  flex-direction: column;
  animation: slideUpPreview .2s ease;
}
@keyframes slideUpPreview {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.course-preview__top {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: #0d0d0d;
  flex-shrink: 0;
}

.course-preview__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center center;
  display: block;
}

.course-preview__top-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, var(--surface) 0%, rgba(0,0,0,.45) 55%, transparent 100%);
}

.course-preview__close {
  position: absolute;
  top: .65rem;
  right: .65rem;
  width: 30px; height: 30px;
  background: rgba(0,0,0,.6);
  border: 1.5px solid rgba(255,255,255,.18);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  z-index: 10;
  cursor: pointer;
  font-size: .8rem;
  line-height: 1;
  transition: background .15s;
}
.course-preview__close:hover { background: rgba(255,255,255,.18); }

.course-preview__top-info {
  position: absolute;
  bottom: .9rem;
  left: 1rem;
  right: 3rem;
}

.course-preview__module-label {
  font-size: .68rem;
  color: var(--accent-light);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .2rem;
}

.course-preview__first-lesson {
  font-size: .9rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  text-shadow: 0 1px 6px rgba(0,0,0,.7);
}

.course-preview__body {
  padding: .85rem 1.1rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .85rem;
}

.course-preview__course-name {
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1.2;
}

.course-preview__stats {
  font-size: .78rem;
  color: var(--text-muted);
  margin-top: .2rem;
}

.course-preview__module-select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .55rem 2.25rem .55rem .9rem;
  color: var(--text);
  font-size: .85rem;
  cursor: pointer;
  width: 100%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .9rem center;
  transition: border-color .18s;
}
.course-preview__module-select:focus { border-color: var(--accent); }

.preview-lesson-list { display: flex; flex-direction: column; }

.preview-lesson {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .5rem .45rem;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  transition: background .15s;
}
.preview-lesson:hover { background: var(--card); }

.preview-lesson__num {
  width: 18px;
  text-align: center;
  font-size: .7rem;
  color: var(--text-faint);
  flex-shrink: 0;
}

.preview-lesson__thumb {
  width: 88px;
  height: 50px;
  border-radius: 4px;
  background: var(--card);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-faint);
  overflow: hidden;
  border: 1px solid var(--border);
}

.preview-lesson__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.preview-lesson__meta { flex: 1; min-width: 0; }

.preview-lesson__name {
  font-size: .82rem;
  font-weight: 500;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.preview-lesson__dur {
  font-size: .7rem;
  color: var(--text-muted);
  margin-top: .1rem;
  white-space: nowrap;
}

/* ── Trilha course drag-and-drop ─────────────────────────── */
.trilha-course-item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .55rem .8rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: grab;
  user-select: none;
  transition: background .12s, opacity .12s, box-shadow .12s;
}
.trilha-course-item:active { cursor: grabbing; }
.trilha-course-item.is-dragging { opacity: .4; }
.trilha-course-item.drag-over {
  background: var(--accent-tint);
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-strong);
}
.trilha-course-handle {
  color: var(--text-muted);
  font-size: 1rem;
  flex-shrink: 0;
  cursor: grab;
}
.trilha-course-name {
  font-size: .85rem;
  font-weight: 500;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ================================================================
   COMPONENTES COMPARTILHADOS (js/ui.js)
   ================================================================
   Estilos das peças que js/ui.js monta. Ficam aqui, e não inline em
   cada HTML, porque é justamente a duplicação inline que fazia a
   mesma barra ter aparências diferentes em index.html e aula.html.
   ================================================================ */

/* ── Navbar: itens com ícone ─────────────────────────────────── */
.navbar__support,
.navbar__back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.navbar__subtitle {
  color: var(--text-faint);
  font-size: var(--text-xs);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 40ch;
}

/* O gatilho do menu virou <button>: zera o visual nativo e garante
   alvo de toque confortável. */
.navbar__user {
  border: none;
  background: none;
  font: inherit;
  min-height: 40px;
}

/* Itens do dropdown agora têm ícone, então vão de `block` para `flex`. */
.navbar__dropdown a,
.navbar__dropdown button {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: var(--tap-min);
}
.navbar__dropdown svg { flex-shrink: 0; opacity: .7; }
.navbar__dropdown a:hover svg,
.navbar__dropdown button:hover svg { opacity: 1; }

/* ── Skeleton de carregamento ────────────────────────────────────
   Mesma largura e proporção do .course-card real: se o fantasma tem
   tamanho diferente do conteúdo, a página salta na troca. */
.card-skeleton,
.skeleton-title {
  background: linear-gradient(90deg,
    var(--card) 25%, var(--card-hover) 50%, var(--card) 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s linear infinite;
  border-radius: var(--radius);
}

.card-skeleton {
  flex-shrink: 0;
  width: 200px;
  aspect-ratio: 4 / 5;
}
@media (min-width: 640px)  { .card-skeleton { width: 240px; } }
@media (min-width: 1024px) { .card-skeleton { width: 280px; } }
@media (min-width: 1440px) { .card-skeleton { width: 320px; } }

.skeleton-title { height: 16px; width: 140px; }

@keyframes skeleton-shimmer {
  0%   { background-position:  200% 0; }
  100% { background-position: -200% 0; }
}

/* Movimento reduzido: o brilho vira um bloco parado. Sem isto a
   animação infinita ignora a preferência do sistema (a regra global
   de tokens.css encurta a duração, mas repetição infinita continua
   piscando). */
@media (prefers-reduced-motion: reduce) {
  .card-skeleton, .skeleton-title { animation: none; background: var(--card); }
}

/* ── Estado vazio ────────────────────────────────────────────────*/
.empty-state__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--text);
}
.empty-state__text {
  font-size: var(--text-sm);
  color: var(--text-muted);
  max-width: 46ch;
  line-height: var(--leading-relaxed);
}
.empty-state .btn { margin-top: var(--space-2); }

/* ── Alvo de toque ───────────────────────────────────────────────
   Botão só-de-ícone precisa de área clicável mesmo quando o desenho
   é pequeno. Vale para o carrossel do hero, o fechar do modal e as
   setas das fileiras.
   O ::after só precisa de um ancestral posicionado: quem já é
   `position: absolute` NÃO entra nesta lista. Incluir aqui o
   .course-preview__close reescrevia o `absolute` dele (mesma
   especificidade, regra mais abaixo) e jogava o botão de volta no
   fluxo, no canto esquerdo, para fora da capa do curso. */
.hero__dot,
.hero__pause,
.row-nav-btn {
  position: relative;
}
.hero__dot::after,
.hero__pause::after,
.row-nav-btn::after,
.course-preview__close::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width:  max(100%, var(--tap-min));
  height: max(100%, var(--tap-min));
}

/* ================================================================
   ACESSIBILIDADE: utilitários
   ================================================================ */

/* Primeiro item do Tab: pula a navbar e o hero e vai direto ao
   conteúdo. Fica escondido até receber foco. Sem ele, quem navega por
   teclado atravessa a barra inteira em toda página. */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: var(--z-toast);
  padding: var(--space-3) var(--space-4);
  background: var(--accent);
  color: var(--on-accent);
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  border-radius: var(--radius);
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus { top: var(--space-4); }

/* Visível só para leitor de tela: rótulo de campo que o desenho não
   comporta, mas que a navegação por voz precisa. */
.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;
}

/* ================================================================
   HOME: progresso e prévia
   ================================================================ */

/* Fundo do slide sem imagem; era um style inline repetido. */
.hero__fallback-bg {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #1a1200 0%, var(--bg) 100%);
}

/* Barra de progresso no cartão do curso.
   Fica colada na base da capa e SEMPRE visível (não só no hover): é a
   informação que responde "onde eu parei?" antes de qualquer clique. */
.course-card__progress {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: var(--space-2) var(--space-3) var(--space-3);
  background: linear-gradient(to top, rgba(0,0,0,.88), transparent);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  pointer-events: none;
  z-index: 2;
}
.course-card__progress .progress-bar { height: 3px; }
.course-card__progress-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: #fff;
  text-shadow: 0 1px 3px rgba(0,0,0,.9);
}
/* No hover o overlay cobre o cartão; esconder a barra evita os dois
   textos brigando pelo mesmo espaço. */
.course-card:hover .course-card__progress { opacity: 0; transition: opacity var(--dur-fast); }

/* Módulo bloqueado dentro da prévia */
.preview-locked {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  color: var(--text-muted);
  font-size: var(--text-sm);
  background: var(--card);
  border-radius: var(--radius);
}
.preview-locked svg { flex-shrink: 0; }

.preview-empty {
  color: var(--text-muted);
  font-size: var(--text-sm);
  padding: var(--space-3);
}

/* ================================================================
   TELA DE AULA: blocos que eram style inline
   ================================================================ */

/* Vídeo de módulo ainda não liberado */
.video-locked {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-5);
  background: #000;
  color: var(--text-faint);
  text-align: center;
}
.video-locked__title { font-size: var(--text-base); color: var(--text-muted); font-weight: var(--weight-semibold); }
.video-locked__date  { font-size: var(--text-sm); }

/* Aviso nas abas quando o módulo está travado */
.tab-locked-note {
  color: var(--text-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* Tela de "sem acesso ao curso": ocupa as duas colunas do layout */
.aula-denied {
  grid-column: 1 / -1;
  max-width: 560px;
  margin: var(--space-8) auto;
}

/* ================================
   REGISTRO EDITÁVEL EM MODAL
   ================================
   Substitui a linha única em que nome, select, date e toggle ficavam colados
   e sem rótulo. Cada registro vira um cartão: identidade em cima, campos
   rotulados embaixo, num grid que quebra sozinho quando falta largura. */
.reg-list { display: flex; flex-direction: column; gap: var(--space-3); }

.reg-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
}

.reg-card__hd {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.reg-card__ident { min-width: 0; flex: 1; }

.reg-card__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.reg-card__meta {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-1);
  line-height: var(--leading-normal);
}

.reg-card__actions { display: flex; gap: var(--space-2); flex-shrink: 0; }

/* auto-fit: dois campos lado a lado quando cabe, empilhados quando não cabe,
   sem media query, porque o modal muda de largura por classe (lg/xl). */
.reg-card__fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

.field-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: var(--leading-normal);
}

/* Data já vencida: o toggle diz "ativo" mas a RLS barra. */
.form-input.is-vencida { border-color: var(--danger); color: #fca5a5; }

/* Linha "adicionar": campo cresce, botão fica alinhado à base do campo. */
.add-row {
  display: flex;
  align-items: flex-end;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}
.add-row .form-group { flex: 1; min-width: 200px; }

/* Atalhos numéricos (1, 3, 7, 14 dias) */
.chip-row { display: flex; gap: var(--space-1); flex-wrap: wrap; }
.chip-row .btn { padding: .2rem .55rem; font-size: var(--text-xs); }

/* Texto de apoio no topo de um painel de modal */
.panel-hint {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
  margin: 0 0 var(--space-4);
}