/* =========================================================
   Plataforma de Cursos — visual claro e acolhedor
   Cores vêm do tema do professor (app/themes.php) via variáveis.
   ========================================================= */
:root {
  color-scheme: light;
  --bg: #f6f3ee;
  --bg-2: #fbf9f6;
  --card: #ffffff;
  --card-2: #f1ede6;
  --border: #e4ddd2;
  --border-2: #cfc6b8;
  --fg: #1f1b16;
  --fg-2: #3d362e;
  --muted: #5c5349;
  --muted-2: #6b6257;
  --accent: #6d4aff;
  --accent-fg: #ffffff;
  --accent-ink: #5a36f0;
  --ok-bg: #e7f4eb; --ok-fg: #1d6337; --ok-bd: #bcdec8;
  --warn-bg: #fdf3e1; --warn-fg: #7f5200; --warn-bd: #edd5a3;
  --danger-bg: #fcebea; --danger-fg: #a1261e; --danger-bd: #f0c3bf;
  --shadow: 0 1px 2px rgba(31, 27, 22, .05), 0 8px 24px -12px rgba(31, 27, 22, .16);
  --r-sm: 10px;
  --r: 12px;
  --r-lg: 16px;
  --font: "Figtree", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Bricolage Grotesque", "Figtree", ui-sans-serif, system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; }
body {
  margin: 0; background: var(--bg); color: var(--fg); overflow-x: clip;
  font: 16px/1.55 var(--font); -webkit-font-smoothing: antialiased; min-height: 100vh;
}
::selection { background: color-mix(in oklab, var(--accent) 28%, transparent); color: var(--fg); }
input, textarea { caret-color: var(--accent); }
a { color: inherit; text-decoration: none; }
a.link, .prose a { color: var(--accent-ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { margin: 0; font-family: var(--display); font-weight: 600; letter-spacing: -0.02em; line-height: 1.15; text-wrap: balance; }
p { margin: 0; }
* { scrollbar-color: var(--border-2) transparent; }
.i { flex-shrink: 0; }
.muted { color: var(--muted); }
.muted-2 { color: var(--muted-2); }
.mono { font-variant-numeric: tabular-nums; }
.small { font-size: 14px; }
.xs { font-size: 13px; }
.label-title { font-size: 14px; font-weight: 600; color: var(--fg-2); }
.stack { display: flex; flex-direction: column; gap: 16px; }
.stack-sm { display: flex; flex-direction: column; gap: 8px; }
.row { display: flex; align-items: center; gap: 12px; }
.row-wrap { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.between { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.hide { display: none !important; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.text-danger { color: var(--danger-fg); }
@media (max-width: 600px) { .hide-sm { display: none; } }

/* ---------- Tipografia ---------- */
.display { font-family: var(--display); font-size: clamp(36px, 5.5vw, 64px); font-weight: 600; letter-spacing: -0.035em; line-height: 1; }
.display .dim { color: var(--muted-2); font-weight: 500; }
.h1 { font-size: clamp(26px, 3.2vw, 34px); letter-spacing: -0.03em; }
.h2 { font-size: 21px; }
.h3 { font-size: 17px; letter-spacing: -0.01em; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 42px; padding: 0 18px; border-radius: 999px; border: 1px solid var(--border-2);
  background: var(--card); color: var(--fg); font: 600 15px/1 var(--font); cursor: pointer;
  transition: background-color .18s, border-color .18s, color .18s, box-shadow .18s;
  white-space: nowrap; position: relative; text-decoration: none;
}
.btn:hover { background: var(--card-2); }
.btn:active { box-shadow: inset 0 1px 2px rgba(0,0,0,.08); }
.btn:focus-visible, .field:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-primary { background: var(--accent); color: var(--accent-fg); border-color: transparent; }
.btn-primary:hover { background: color-mix(in oklab, var(--accent) 88%, var(--fg)); }
.btn-accent { background: var(--accent); color: var(--accent-fg); border-color: transparent; }
.btn-accent:hover { background: color-mix(in oklab, var(--accent) 88%, var(--fg)); }
.btn-dark { background: var(--fg); color: var(--bg); border-color: transparent; }
.btn-dark:hover { background: color-mix(in oklab, var(--fg) 85%, var(--bg)); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn-ghost:hover { color: var(--fg); background: var(--card-2); }
.btn-danger { background: transparent; color: var(--danger-fg); border-color: var(--danger-bd); }
.btn-danger:hover { background: var(--danger-bg); }
.btn-sm { height: 36px; padding: 0 14px; font-size: 14px; gap: 6px; }
.btn-lg { height: 50px; padding: 0 26px; font-size: 16px; }
.btn-icon { width: 42px; padding: 0; }
.btn-icon.btn-sm { width: 36px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; pointer-events: none; }
@media (pointer: coarse) {
  .btn { height: 46px; }
  .btn-sm { height: 42px; }
  .btn-icon, .btn-icon.btn-sm { width: 44px; height: 44px; }
}

/* Cartão-botão com seta */
.cta-card {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 20px 22px; border-radius: var(--r-lg); background: var(--fg); color: var(--bg);
  transition: background-color .2s; min-height: 92px;
}
.cta-card:hover { background: color-mix(in oklab, var(--fg) 88%, var(--accent)); }
.cta-card .cta-sub { font-size: 13px; opacity: .72; }
.cta-card .cta-title { font-family: var(--display); font-size: 19px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; margin-top: 2px; }
.cta-card .arrow { width: 46px; height: 46px; border-radius: 999px; background: var(--bg); color: var(--fg); display: grid; place-items: center; flex-shrink: 0; transition: transform .3s var(--ease); }
.cta-card:hover .arrow { transform: translateX(3px); }
.cta-card.accent { background: var(--accent); color: var(--accent-fg); }
.cta-card.accent .arrow { background: var(--accent-fg); color: var(--accent); }

/* ---------- Cartões ---------- */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 22px; }
.card-hd { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.card-pad-0 { padding: 0; overflow: hidden; }
.divider { height: 1px; background: var(--border); margin: 18px 0; border: 0; }
.danger-zone { border-color: var(--danger-bd); }
.danger-zone .h3 { color: var(--danger-fg); }
.warn-card { background: var(--warn-bg); border-color: var(--warn-bd); color: var(--warn-fg); }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.stat { padding: 18px 20px; }
.stat .num { font-family: var(--display); font-size: 34px; font-weight: 600; letter-spacing: -0.03em; line-height: 1; margin-top: 12px; font-variant-numeric: tabular-nums; }
.stat .sub { font-size: 13px; color: var(--muted-2); margin-top: 6px; }
.stat .ico { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: color-mix(in oklab, var(--accent) 12%, var(--card)); color: var(--accent-ink); }

/* ---------- Etiquetas ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 10px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--card-2); font-size: 13px; color: var(--fg-2); white-space: nowrap;
}
.chip .n { color: var(--muted); }
.chip-ok { color: var(--ok-fg); border-color: var(--ok-bd); background: var(--ok-bg); }
.chip-warn { color: var(--warn-fg); border-color: var(--warn-bd); background: var(--warn-bg); }
.chip-danger { color: var(--danger-fg); border-color: var(--danger-bd); background: var(--danger-bg); }
.chip-accent { color: var(--accent-ink); border-color: color-mix(in oklab, var(--accent) 35%, transparent); background: color-mix(in oklab, var(--accent) 10%, var(--card)); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; display: inline-block; }

/* ---------- Formulários ---------- */
.form { display: flex; flex-direction: column; gap: 18px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.label { display: block; font-size: 14px; font-weight: 600; color: var(--fg-2); margin-bottom: 7px; }
.hint { display: block; font-size: 13px; color: var(--muted-2); margin-top: 6px; }
.field {
  width: 100%; height: 46px; padding: 0 14px; border-radius: var(--r-sm);
  border: 1px solid var(--border-2); background: var(--bg-2); color: var(--fg); font: 16px var(--font);
  transition: border-color .18s, box-shadow .18s, background-color .18s;
}
.field::placeholder { color: var(--muted-2); }
.field:hover { border-color: color-mix(in oklab, var(--border-2) 70%, var(--fg)); }
.field:focus { outline: none; border-color: var(--accent); background: var(--card); box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 22%, transparent); }
.field:disabled { opacity: .6; }
textarea.field { height: auto; min-height: 110px; padding: 12px 14px; resize: vertical; line-height: 1.5; }
select.field { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%236b6257' stroke-width='2'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }
input[type=color].field { padding: 4px; width: 64px; cursor: pointer; flex-shrink: 0; }
input[type=file].field { padding: 8px; height: auto; font-size: 14px; }
input[type=file].field::file-selector-button { background: var(--card-2); color: var(--fg); border: 1px solid var(--border-2); border-radius: 999px; padding: 7px 14px; margin-right: 10px; font: 600 13px var(--font); cursor: pointer; }
.field-mono { font-family: var(--mono); letter-spacing: .02em; }
.pw-wrap { position: relative; }
.pw-wrap .field { padding-right: 52px; }
.pw-toggle { position: absolute; right: 4px; top: 50%; transform: translateY(-50%); width: 42px; height: 38px; border: 0; background: transparent; color: var(--muted); border-radius: 8px; display: grid; place-items: center; cursor: pointer; }
.pw-toggle:hover { color: var(--fg); background: var(--card-2); }

.check { display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 15px; user-select: none; }
.check input { appearance: none; width: 20px; height: 20px; border-radius: 6px; border: 1.5px solid var(--border-2); background: var(--card); display: grid; place-items: center; cursor: pointer; flex-shrink: 0; margin: 0; position: relative; }
.check input:checked { background: var(--accent); border-color: var(--accent); }
.check input:checked::after { content: ""; width: 9px; height: 5px; border: 2px solid var(--accent-fg); border-top: 0; border-right: 0; transform: rotate(-45deg) translate(1px, -1px); }
.check input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.switch input { width: 40px; height: 24px; border-radius: 999px; display: block; }
.switch input::after, .switch input:checked::after { content: ""; position: absolute; left: 3px; top: 3px; width: 16px; height: 16px; border: 0; border-radius: 50%; background: var(--border-2); transition: transform .25s var(--ease); transform: none; }
.switch input:checked::after { background: var(--accent-fg); transform: translateX(16px); }

.check-list { display: flex; flex-direction: column; gap: 2px; border: 1px solid var(--border); border-radius: var(--r); padding: 6px; background: var(--bg-2); max-height: 340px; overflow: auto; }
.check-list .check { padding: 11px 10px; border-radius: 8px; }
.check-list .check:hover { background: var(--card-2); }

/* ---------- Mensagens ---------- */
.flashes { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.flash { display: flex; gap: 10px; align-items: flex-start; padding: 12px 16px; border-radius: var(--r); border: 1px solid; font-size: 15px; }
.flash .i { margin-top: 2px; }
.flash-ok { background: var(--ok-bg); border-color: var(--ok-bd); color: var(--ok-fg); }
.flash-error { background: var(--danger-bg); border-color: var(--danger-bd); color: var(--danger-fg); }
.flash-warn { background: var(--warn-bg); border-color: var(--warn-bd); color: var(--warn-fg); }
.flash-info { background: var(--card-2); border-color: var(--border); color: var(--fg-2); }

.creds { border: 1px dashed color-mix(in oklab, var(--accent) 55%, transparent); background: color-mix(in oklab, var(--accent) 6%, var(--card)); border-radius: var(--r-lg); padding: 20px; }
.creds dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 14px 0; font-size: 15px; }
.creds dt { color: var(--muted); }
.creds dd { margin: 0; font-family: var(--mono); word-break: break-all; }

/* ---------- Tabelas ---------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 15px; }
.table th { text-align: left; font-weight: 600; font-size: 13px; color: var(--muted); padding: 12px 16px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.table td { padding: 14px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; font-variant-numeric: tabular-nums; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: color-mix(in oklab, var(--card-2) 55%, transparent); }
.table .actions { text-align: right; white-space: nowrap; }
.avatar { width: 36px; height: 36px; border-radius: 999px; background: var(--card-2); border: 1px solid var(--border); display: grid; place-items: center; font-size: 13px; font-weight: 700; color: var(--fg-2); flex-shrink: 0; overflow: hidden; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-accent { background: var(--accent); border-color: transparent; color: var(--accent-fg); }

.empty { text-align: center; padding: 48px 24px; color: var(--muted); }
.empty .ico { width: 54px; height: 54px; border-radius: 16px; background: color-mix(in oklab, var(--accent) 10%, var(--card)); color: var(--accent-ink); display: grid; place-items: center; margin: 0 auto 16px; }
.empty h3 { color: var(--fg); margin-bottom: 6px; }

.bar { height: 8px; border-radius: 999px; background: var(--card-2); overflow: hidden; }
.bar > span { display: block; height: 100%; border-radius: inherit; background: var(--accent); transition: width .6s var(--ease); }
.bar-sm { height: 6px; }

/* =========================================================
   Painel (super admin e professor)
   ========================================================= */
.shell { display: grid; grid-template-columns: 256px 1fr; min-height: 100vh; }
.side {
  position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; gap: 4px;
  border-right: 1px solid var(--border); background: var(--card); padding: 18px 14px; overflow-y: auto;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 6px 8px 18px; font-family: var(--display); font-weight: 600; letter-spacing: -0.02em; min-width: 0; font-size: 17px; }
.brand-mark { width: 32px; height: 32px; border-radius: 9px; background: var(--accent); display: grid; place-items: center; color: var(--accent-fg); overflow: hidden; flex-shrink: 0; font: 700 13px var(--font); }
.brand-mark img { width: 100%; height: 100%; object-fit: cover; background: var(--card); }
.nav-label { font-size: 13px; font-weight: 600; color: var(--muted-2); padding: 16px 10px 6px; }
.nav a {
  display: flex; align-items: center; gap: 11px; min-height: 44px; padding: 0 12px; border-radius: 10px; color: var(--muted);
  font-size: 15px; font-weight: 600; transition: color .15s, background-color .15s;
}
.nav a:hover { color: var(--fg); background: var(--card-2); }
.nav a.on { color: var(--accent-ink); background: color-mix(in oklab, var(--accent) 10%, var(--card)); }
.nav .badge { margin-left: auto; font-size: 12px; min-width: 22px; height: 22px; padding: 0 7px; border-radius: 999px; background: var(--accent); color: var(--accent-fg); display: grid; place-items: center; }
.side-foot { margin-top: auto; border-top: 1px solid var(--border); padding-top: 12px; }
.me { display: flex; align-items: center; gap: 10px; padding: 6px 8px; }
.me .who { min-width: 0; flex: 1; }
.me .who b { display: block; font-size: 14px; font-weight: 600; }
.me .who span { display: block; font-size: 13px; color: var(--muted-2); }

.main { min-width: 0; padding: 36px clamp(18px, 4vw, 48px) 72px; }
.page-hd { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.page-hd .crumbs { display: flex; align-items: center; gap: 6px; font-size: 14px; color: var(--muted); margin-bottom: 10px; flex-wrap: wrap; }
.page-hd .crumbs a:hover { color: var(--fg); text-decoration: underline; text-underline-offset: 3px; }
.page-hd .lead { color: var(--muted); margin-top: 8px; max-width: 62ch; }
.content { max-width: 1180px; }
.cols { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 20px; align-items: start; }
.cols-even { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.topbar { display: none; }

@media (max-width: 960px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: fixed; z-index: 50; inset: 0 auto 0 0; width: 280px; transform: translateX(-100%); transition: transform .35s var(--ease); }
  .side.open { transform: none; box-shadow: 0 0 0 100vmax rgba(31,27,22,.45); }
  .topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; position: sticky; top: 0; z-index: 40; padding: 10px 14px; border-bottom: 1px solid var(--border); background: var(--card); }
  .cols, .cols-even { grid-template-columns: 1fr; }
  .main { padding-top: 24px; }
}

/* ---------- Estrutura do curso ---------- */
.module { border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--card); overflow: hidden; }
.module + .module { margin-top: 12px; }
.module-hd { display: flex; align-items: center; gap: 10px; padding: 10px 12px 10px 14px; background: var(--card-2); border-bottom: 1px solid var(--border); }
.module-hd b { font-family: var(--display); font-size: 16px; }
.module-hd input { background: transparent; border: 1px solid transparent; color: var(--fg); font: 600 16px var(--display); padding: 8px; border-radius: 8px; flex: 1; min-width: 0; width: 100%; }
.module-hd input:hover { border-color: var(--border-2); background: var(--card); }
.module-hd input:focus { outline: none; border-color: var(--accent); background: var(--card); }
.lesson-row { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--border); min-height: 56px; }
.lesson-row:last-child { border-bottom: 0; }
.lesson-row:hover { background: var(--bg-2); }
.lesson-row .ix { width: 28px; height: 28px; border-radius: 999px; border: 1.5px solid var(--border-2); display: grid; place-items: center; font-size: 13px; font-weight: 600; color: var(--muted); flex-shrink: 0; }
.lesson-row .t { flex: 1; min-width: 0; font-size: 15px; }
.lesson-row .t a:hover { color: var(--accent-ink); }
.tools { display: flex; align-items: center; gap: 2px; }
.module-add { padding: 10px 14px; }

.cover { aspect-ratio: 16/9; border-radius: var(--r); overflow: hidden; background: var(--card-2); position: relative; }
.cover img { width: 100%; height: 100%; object-fit: cover; }
.cover-ph {
  position: absolute; inset: 0; display: grid; place-items: end start; padding: 16px 18px;
  background: linear-gradient(150deg, color-mix(in oklab, var(--accent) 85%, #fff) 0%, var(--accent) 55%, color-mix(in oklab, var(--accent) 70%, #000) 100%);
  color: var(--accent-fg);
}
.cover-ph span { font-family: var(--display); font-size: clamp(17px, 2vw, 22px); font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; max-width: 85%; }
.cover-ph::after { content: ""; position: absolute; right: -12%; top: -30%; width: 60%; aspect-ratio: 1; border-radius: 50%; border: 18px solid color-mix(in oklab, var(--accent-fg) 18%, transparent); }

/* =========================================================
   Área do aluno
   ========================================================= */
.snav {
  position: sticky; top: 0; z-index: 40; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 12px clamp(16px, 4vw, 48px); border-bottom: 1px solid transparent; background: var(--bg); transition: border-color .3s;
}
.snav.scrolled { border-bottom-color: var(--border); }
.snav .brand { padding: 0; }
.snav .links { display: flex; align-items: center; gap: 4px; }
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 48px); }

.hero { position: relative; padding: clamp(28px, 6vw, 72px) 0 24px; }
.hero-logo { width: 64px; height: 64px; border-radius: 18px; overflow: hidden; background: var(--accent); color: var(--accent-fg); margin-bottom: 22px; display: grid; place-items: center; font: 700 22px var(--font); box-shadow: var(--shadow); }
.hero-logo img { width: 100%; height: 100%; object-fit: cover; background: var(--card); }
.hero .lead { color: var(--muted); max-width: 58ch; margin-top: 14px; font-size: 18px; }

.section { padding: 28px 0; }
.section-hd { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; }

.courses { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 20px; }
.ccard { display: flex; flex-direction: column; border-radius: var(--r-lg); border: 1px solid var(--border); background: var(--card); overflow: hidden; transition: box-shadow .25s, border-color .25s; }
.ccard:hover { box-shadow: var(--shadow); border-color: var(--border-2); }
.ccard .cover { border-radius: 0; }
.ccard .body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.ccard .meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--muted); }
.ccard .play-badge { display: none; }
.done-tag { position: absolute; left: 12px; top: 12px; }

.course-hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(20px, 4vw, 48px); align-items: center; padding: 28px 0; }
.course-hero .cover { border-radius: var(--r-lg); }
.outline .lesson-row a { display: flex; align-items: center; gap: 12px; flex: 1; min-width: 0; }
.outline .lesson-row a:hover .t { color: var(--accent-ink); }
.outline .lesson-row.is-done .ix { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
@media (max-width: 860px) { .course-hero { grid-template-columns: 1fr; } .course-hero .cover { order: -1; } }

/* Conclusão do curso */
.complete { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 20px; padding: 22px 24px; border-radius: var(--r-lg); background: color-mix(in oklab, var(--accent) 9%, var(--card)); border: 1px solid color-mix(in oklab, var(--accent) 30%, transparent); }
.complete .seal { width: 56px; height: 56px; border-radius: 50%; background: var(--accent); color: var(--accent-fg); display: grid; place-items: center; }
@media (max-width: 640px) { .complete { grid-template-columns: 1fr; } }

/* Página da aula */
.lesson-layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 24px; padding: 12px 0 64px; align-items: start; }
.lesson-side { position: sticky; top: 76px; max-height: calc(100vh - 92px); overflow: auto; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--card); }
.lesson-side .side-hd { padding: 16px 18px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--card); z-index: 1; }
.lesson-side .m-title { padding: 14px 18px 6px; font-size: 13px; font-weight: 700; color: var(--muted); }
.lesson-side a.li { display: flex; gap: 10px; align-items: flex-start; padding: 11px 18px; font-size: 15px; color: var(--fg-2); transition: background-color .15s; }
.lesson-side a.li:hover { background: var(--bg-2); }
.lesson-side a.li.cur { background: color-mix(in oklab, var(--accent) 10%, var(--card)); color: var(--fg); font-weight: 600; }
.lesson-side a.li .st { margin-top: 2px; color: var(--muted-2); display: flex; }
.lesson-side a.li.ok .st, .lesson-side a.li.cur .st { color: var(--accent-ink); }
@media (max-width: 1060px) { .lesson-layout { grid-template-columns: 1fr; } .lesson-side { position: static; max-height: 380px; } }

.lesson-nav { display: flex; gap: 10px; justify-content: space-between; flex-wrap: wrap; }
.materials { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.mat { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: var(--r); border: 1px solid var(--border); background: var(--card); transition: border-color .2s, box-shadow .2s; }
a.mat:hover { border-color: var(--border-2); box-shadow: var(--shadow); }
.mat .ext { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; font: 700 12px var(--font); text-transform: uppercase; background: color-mix(in oklab, var(--accent) 10%, var(--card)); color: var(--accent-ink); flex-shrink: 0; }
.desc { color: var(--fg-2); line-height: 1.7; max-width: 72ch; }

/* Comentários */
.comments { display: flex; flex-direction: column; gap: 18px; }
.cmt { display: flex; gap: 12px; }
.cmt .bubble { flex: 1; min-width: 0; }
.cmt .who { display: flex; align-items: center; gap: 8px; font-size: 14px; margin-bottom: 4px; flex-wrap: wrap; }
.cmt .who b { font-weight: 700; }
.cmt .text { font-size: 15px; color: var(--fg-2); white-space: pre-line; overflow-wrap: anywhere; }
.cmt .replies { margin-top: 12px; padding-left: 16px; border-left: 1px solid var(--border); display: flex; flex-direction: column; gap: 12px; }
.reply-form { margin-top: 10px; display: flex; gap: 8px; }
.reply-form .field { height: 42px; }
details.reply summary { list-style: none; cursor: pointer; font-size: 14px; color: var(--muted); margin-top: 6px; display: inline-flex; gap: 4px; align-items: center; min-height: 32px; }
details.reply summary::-webkit-details-marker { display: none; }
details.reply summary:hover { color: var(--fg); }

/* =========================================================
   Player de vídeo (sempre escuro)
   ========================================================= */
.player { position: relative; aspect-ratio: 16/9; background: #000; border-radius: var(--r-lg); overflow: hidden; user-select: none; -webkit-user-select: none; outline: none; }
.player:focus-visible { box-shadow: 0 0 0 3px var(--accent); }
.player:fullscreen { border-radius: 0; aspect-ratio: auto; }
.player .frame, .player .frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.player .frame iframe { pointer-events: none; }
.player .shield { position: absolute; inset: 0; z-index: 2; cursor: pointer; }
.player .mask-top { position: absolute; left: 0; right: 0; top: 0; height: 72px; z-index: 3; pointer-events: none; background: linear-gradient(#000 0%, rgba(0,0,0,.9) 50%, transparent); opacity: 0; transition: opacity .3s; }
.player.paused .mask-top, .player.ended .mask-top { opacity: 1; }
.player .poster { position: absolute; inset: 0; z-index: 4; display: grid; place-items: center; background: radial-gradient(70% 70% at 50% 50%, rgba(0,0,0,.2), rgba(0,0,0,.75)); transition: opacity .35s; color: #fff; text-align: center; padding: 20px; }
.player .poster.gone { opacity: 0; pointer-events: none; }
.player .big-play { width: 76px; height: 76px; border-radius: 999px; background: #fff; color: #111; display: grid; place-items: center; border: 0; cursor: pointer; transition: transform .25s var(--ease); }
.player .big-play:hover { transform: scale(1.06); }
.player .endcard { position: absolute; inset: 0; z-index: 6; display: none; place-items: center; text-align: center; background: rgba(18,16,14,.94); color: #fff; padding: 24px; }
.player .endcard .btn { background: #fff; color: #111; border-color: transparent; }
.player .endcard .btn-primary { background: var(--accent); color: var(--accent-fg); }
.player.ended .endcard { display: grid; }
.player .controls { position: absolute; left: 0; right: 0; bottom: 0; z-index: 5; padding: 34px 14px 10px; background: linear-gradient(transparent, rgba(0,0,0,.85)); display: flex; flex-direction: column; gap: 6px; opacity: 0; transition: opacity .25s; }
.player.paused .controls, .player:hover .controls { opacity: 1; }
.player.idle:not(.paused) .controls { opacity: 0; }
.player.idle:not(.paused) .shield { cursor: none; }
.player .ctl-row { display: flex; align-items: center; gap: 4px; }
.player .ctl { width: 40px; height: 40px; border-radius: 999px; border: 0; background: transparent; color: #fff; display: grid; place-items: center; cursor: pointer; }
.player .ctl:hover { background: rgba(255,255,255,.16); }
.player .time { font-size: 13px; color: rgba(255,255,255,.9); padding: 0 6px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.player .speed { font: 700 13px var(--font); width: auto; padding: 0 10px; }
.player input[type=range] { -webkit-appearance: none; appearance: none; background: transparent; cursor: pointer; height: 20px; margin: 0; }
.player input[type=range]::-webkit-slider-runnable-track { height: 4px; border-radius: 999px; background: linear-gradient(to right, var(--accent) var(--p, 0%), rgba(255,255,255,.3) var(--p, 0%)); }
.player input[type=range]::-moz-range-track { height: 4px; border-radius: 999px; background: linear-gradient(to right, var(--accent) var(--p, 0%), rgba(255,255,255,.3) var(--p, 0%)); }
.player input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%; background: #fff; margin-top: -5px; border: 0; }
.player input[type=range]::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 0; }
.player .seek { width: 100%; }
.player .vol { width: 80px; }
@media (max-width: 560px) { .player .vol { display: none; } .player { border-radius: var(--r); } }
.no-video { aspect-ratio: 16/9; border-radius: var(--r-lg); border: 1px dashed var(--border-2); display: grid; place-items: center; color: var(--muted); background: var(--card); text-align: center; padding: 16px; }

/* =========================================================
   Entrar (login)
   ========================================================= */
.auth {
  min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 40px 18px; gap: 22px;
  background:
    radial-gradient(120% 60% at 50% -10%, color-mix(in oklab, var(--accent) 16%, var(--bg)) 0%, var(--bg) 60%);
}
.auth-brand { display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; }
.auth-brand .hero-logo { margin: 0; width: 72px; height: 72px; }
.auth-brand .who { font-family: var(--display); font-weight: 600; font-size: 18px; letter-spacing: -0.02em; }
.auth-card {
  width: 100%; max-width: 420px; background: var(--card); border: 1px solid var(--border); border-radius: 20px;
  padding: clamp(24px, 5vw, 36px); box-shadow: 0 1px 2px rgba(31,27,22,.04), 0 24px 48px -28px rgba(31,27,22,.28);
  animation: rise .6s var(--ease) both;
}
.auth-card h1 { font-size: 26px; letter-spacing: -0.025em; }
.auth-card .lead { color: var(--muted); margin-top: 6px; }
.auth-links { display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; font-size: 14px; color: var(--muted); }
.auth-links a { min-height: 44px; display: inline-flex; align-items: center; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--border-2); }
.auth-links a:hover { color: var(--fg); text-decoration-color: currentColor; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }

.blank { min-height: 100vh; display: grid; place-items: center; padding: 24px; text-align: center; }

/* ---------- Modelos de cores ---------- */
.themes { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 10px; }
.theme-opt { position: relative; display: flex; flex-direction: column; gap: 8px; padding: 8px; border-radius: var(--r); border: 1px solid var(--border); background: var(--card); cursor: pointer; transition: border-color .2s; }
.theme-opt:hover { border-color: var(--border-2); }
.theme-opt input { position: absolute; opacity: 0; pointer-events: none; }
.theme-opt:has(input:checked) { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent); }
.theme-opt:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 3px; }
.theme-swatch { height: 64px; border-radius: 9px; background: var(--bg); border: 1px solid var(--border); padding: 8px; display: flex; flex-direction: column; gap: 6px; overflow: hidden; }
.ts-bar { height: 6px; width: 40%; border-radius: 99px; background: var(--border-2); }
.ts-card { flex: 1; border-radius: 6px; background: var(--card); border: 1px solid var(--border); display: flex; align-items: center; gap: 6px; padding: 0 6px; }
.ts-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.ts-line { height: 4px; flex: 1; border-radius: 99px; background: linear-gradient(90deg, var(--accent) 60%, var(--border) 60%); }
.theme-name { font-size: 14px; font-weight: 600; color: var(--fg); padding: 0 2px 2px; }
.theme-group { font-size: 13px; font-weight: 700; color: var(--muted); margin: 16px 0 8px; }
.theme-group:first-child { margin-top: 0; }
.swatch { width: 34px; height: 34px; border-radius: 50%; border: 2px solid var(--card); box-shadow: 0 0 0 1px var(--border-2); cursor: pointer; padding: 0; }
.swatch:hover { box-shadow: 0 0 0 2px var(--fg); }
.preview { border-radius: var(--r-lg); border: 1px solid var(--border); background: var(--bg); padding: 14px; color: var(--fg); }
.pv-nav { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.pv-nav .brand-mark { width: 28px; height: 28px; border-radius: 8px; }
.pv-hero { padding: 22px 0 14px; }
.pv-title { font-family: var(--display); font-size: 24px; font-weight: 600; letter-spacing: -0.03em; line-height: 1; }
.pv-card { border-radius: var(--r); border: 1px solid var(--border); background: var(--card); overflow: hidden; }
.pv-card .cover { border-radius: 0; }
.pv-card .cover-ph span { font-size: 15px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------- Banner da página do professor ---------- */
.hero-banner { padding-top: 20px; }
.banner { aspect-ratio: 16 / 5; border-radius: 20px; overflow: hidden; background: var(--card-2); }
.banner img, .banner-prev img { width: 100%; height: 100%; object-fit: cover; }
.hero-banner .hero-logo { position: relative; width: 92px; height: 92px; border-radius: 22px; margin: -46px 0 18px 28px; border: 4px solid var(--bg); box-shadow: var(--shadow); }
.banner-prev { aspect-ratio: 16 / 5; border-radius: var(--r); overflow: hidden; background: var(--card-2); margin-bottom: 10px; }
@media (max-width: 640px) {
  .banner { aspect-ratio: 16 / 7; border-radius: 14px; }
  .hero-banner .hero-logo { width: 72px; height: 72px; margin: -36px 0 14px 16px; }
}