@font-face {
  font-family: Inter;
  src: url('/assets/inter-regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: Inter;
  src: url('/assets/inter-bold.ttf') format('truetype');
  font-weight: 700;
  font-display: swap;
}

/* Tokens: DS AZUL */
:root {
  color-scheme: dark;
  --canvas: #000000;
  --surface: #0A0A0A;
  --surface-alt: #111111;
  --raised: #141414;
  --blue: #2B7DE1;
  --flare: #003A70;
  --white: #FFFFFF;
  --text: #DDE4EC;
  --meta: #AAB4C0;
  --label: #8899AA;
  --border: rgba(221, 228, 236, .09);
  --border-strong: rgba(221, 228, 236, .15);
  --control-border: rgba(221, 228, 236, .4);
  --blue-soft: rgba(43, 125, 225, .08);
  --blue-border: rgba(43, 125, 225, .45);
  --glow: rgba(43, 125, 225, .25);
  --error: #FFB0AB;
  --radius: 12px;
  --radius-sm: 8px;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease: cubic-bezier(0, 0, .2, 1);
  --page: 1280px;
  --gutter: 32px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --control-size: 44px;
  --player-min-size: 200px;
  --sr-size: 1px;
}

/* Base */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  isolation: isolate;
  margin: 0;
  min-height: 100vh;
  background: var(--canvas);
  color: var(--text);
  font: 400 16px/1.6 Inter, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
/* SectionGlow + crosshair-grid do DS Azul: camadas decorativas atrás do conteúdo. */
body::before, body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}
body::before {
  background:
    radial-gradient(ellipse 75% 65% at 100% 0%, rgba(0, 58, 112, .6), transparent 72%),
    radial-gradient(ellipse 60% 60% at 0% 78%, rgba(43, 125, 225, .16), transparent 75%);
}
body::after {
  background-image:
    linear-gradient(to right, rgba(43, 125, 225, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 125, 225, .07) 1px, transparent 1px),
    radial-gradient(circle, rgba(43, 125, 225, .22) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: 0 0, 0 0, 40px 40px;
  mask-image: linear-gradient(to bottom, #000, rgba(0, 0, 0, .7) 45%, transparent);
}
@media (max-width: 640px) {
  body::after { background-size: 64px 64px; background-position: 0 0, 0 0, 32px 32px; }
}

[hidden] { display: none !important; }
button, input { font: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
a.text-link { color: var(--blue); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
a.text-link:hover { color: var(--white); }
button:disabled, input:disabled { cursor: not-allowed; }
button:focus-visible, input:focus-visible, a:focus-visible,
summary:focus-visible, #error-summary:focus {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}
#content:focus { outline: none; }
h2, h3 { color: var(--white); letter-spacing: -.025em; }
h3 { margin: 0 0 8px; font-size: 19px; line-height: 1.35; }
ol { margin: 16px 0 0; padding-left: 20px; }
li + li { margin-top: 8px; }
small { display: block; color: var(--meta); font-size: 13px; line-height: 1.6; }

.skip-link {
  position: absolute;
  z-index: 20;
  top: 8px;
  left: 8px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--flare);
  color: var(--white);
  transform: translateY(-160%);
}
.skip-link:focus { transform: none; }

/* Topo: moldura contida, hierarquia Inter e uma luz azul discreta. */
.top {
  position: relative;
  isolation: isolate;
  width: min(calc(100% - var(--gutter) * 2), calc(var(--page) - var(--gutter) * 2));
  margin: 32px auto 40px;
  padding: 40px 24px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: radial-gradient(ellipse at 50% 0%, var(--blue-soft), transparent 75%), var(--surface);
  text-align: center;
}
.top::before {
  content: '';
  position: absolute;
  top: 0;
  left: calc(50% - 32px);
  width: 64px;
  height: 2px;
  background: var(--blue);
}
.top h1 {
  max-width: 960px;
  margin: 0 auto;
  color: var(--white);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -.045em;
  text-wrap: balance;
}
.top h1 span { color: var(--blue); white-space: nowrap; }

/* Layout */
.layout {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  align-items: start;
  gap: 32px;
  max-width: var(--page);
  margin: 0 auto;
  padding: 0 var(--gutter) 96px;
}
#content, .stage { min-width: 0; }
.stage { animation: rise .45s var(--ease) both; }
@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

/* StepCard: cada etapa tem superfície, borda e número próprios. */
.side-nav {
  position: sticky;
  top: 32px;
  display: grid;
  gap: 12px;
}
.side-nav button {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 80px;
  padding: 20px 16px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--meta);
  text-align: left;
  font-size: 14px;
  line-height: 1.4;
  transition: background .2s, color .2s, border-color .2s;
}
.side-nav button span {
  display: grid;
  place-items: center;
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--surface-alt);
  color: var(--meta);
  font: 700 12px/1 var(--mono);
  transition: background .2s, color .2s, border-color .2s;
}
.side-nav button:hover { background: var(--surface-alt); color: var(--white); border-color: var(--control-border); }
.side-nav button[aria-current='step'] {
  border-color: var(--blue-border);
  background: var(--blue-soft);
  color: var(--white);
  font-weight: 700;
}
.side-nav button[aria-current='step'] span {
  border-color: var(--blue);
  background: var(--blue);
  color: var(--canvas);
}

/* MediaCard: área 16:9, moldura dupla e placeholder explícito. */
.lesson-video {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  min-width: 0;
  aspect-ratio: 16 / 9;
  padding: 48px 32px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  text-align: center;
  box-shadow: inset 0 0 0 8px var(--surface-alt);
}
.lesson-video::after {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid var(--border);
  border-radius: 5px;
  pointer-events: none;
}
.lesson-video span {
  position: absolute;
  top: 28px;
  left: 32px;
  color: var(--label);
  font: 400 12px/1.5 var(--mono);
  letter-spacing: .14em;
}
.lesson-video strong {
  max-width: 24ch;
  margin: 0 0 12px;
  color: var(--white);
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.035em;
  text-wrap: balance;
}
.lesson-video p { margin: 0; color: var(--meta); font-size: 14px; }
.lesson-video.has-video { padding: 8px; background: var(--surface-alt); }
.lesson-video.has-video::after { content: none; }
.lesson-video video { display: block; width: 100%; height: 100%; object-fit: contain; border-radius: 4px; }

/* Blocos de conteúdo */
.lesson-note, .install-form, .workshop-offer {
  margin-top: 32px;
  padding: 32px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
}
.lesson-note + .lesson-video { margin-top: 48px; }
.lesson-note p, .lesson-note li, .plan-b p, .plan-b li { color: var(--meta); font-size: 15px; }
.lesson-note p { max-width: 60ch; margin: 0 0 20px; }

/* Oferta: promessa e ingresso agrupados, abaixo da mídia com 40px de respiro. */
.workshop-offer {
  margin-top: 40px;
  width: 100%;
  max-width: none;
  padding: 48px 40px;
  background: var(--surface-alt);
  text-align: center;
}
.workshop-offer h2 {
  max-width: 31ch;
  margin: 0 auto 20px;
  font-size: clamp(28px, 2.8vw, 36px);
  line-height: 1.2;
  letter-spacing: -.035em;
  text-wrap: balance;
}
.workshop-offer h2 span { color: var(--blue); }
.offer-lead {
  max-width: 56ch;
  margin: 0 auto;
  color: var(--meta);
  font-size: 16px;
  line-height: 1.6;
  text-wrap: pretty;
}
.offer-details {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: 560px;
  margin: 32px auto 0;
  padding: 24px;
  border: 1px solid var(--blue-border);
  border-radius: var(--radius);
  background: var(--surface);
}
.offer-event h3 {
  margin: 0 0 8px;
  color: var(--meta);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0;
}
#workshop-dates {
  margin: 0;
  color: var(--white);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.025em;
}
.offer-price {
  margin: 0;
  padding-left: 24px;
  border-left: 1px solid var(--border-strong);
  color: var(--meta);
  font-size: 14px;
  line-height: 1.4;
}
.offer-price strong {
  display: block;
  margin-top: 4px;
  color: var(--white);
  font-size: 40px;
  line-height: 1.1;
  letter-spacing: -.04em;
}
.offer-details .cta {
  grid-column: 1 / -1;
  width: 100%;
  margin: 0;
  padding-inline: 20px;
}

/* Button CTA: azul sólido solicitado pelo usuário, com texto preto. */
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 52px;
  max-width: 100%;
  margin: 0;
  padding: 14px 24px;
  border: 1px solid var(--blue-border);
  border-radius: var(--radius-sm);
  background: var(--blue);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06);
  color: var(--canvas);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.cta:hover:not(:disabled) {
  border-color: var(--blue);
  background: var(--blue);
  filter: brightness(1.1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08), 0 8px 32px -8px var(--glow);
}
.cta:disabled { opacity: .55; }
.cta:active:not(:disabled) { transform: translateY(1px); }

.next {
  display: block;
  min-height: 48px;
  margin: 32px 0 0 auto;
  padding: 12px 0 12px 16px;
  border: 0;
  background: transparent;
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
  transition: color .2s;
}
.next:hover { color: var(--blue); }

/* Cupom */
.coupon {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
  padding: 12px 12px 12px 20px;
  border: 1px dashed var(--control-border);
  border-radius: var(--radius-sm);
  background: var(--canvas);
}
.coupon span { color: var(--label); font: 500 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.coupon strong { color: var(--white); font: 700 16px/1 var(--mono); letter-spacing: .12em; }
.coupon button {
  min-height: 44px;
  margin-left: auto;
  padding: 8px 16px;
  border: 1px solid var(--control-border);
  border-radius: 6px;
  background: var(--blue);
  color: var(--canvas);
  font-weight: 700;
  font-size: 13px;
  transition: border-color .2s, color .2s;
}
.coupon button:hover { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
#coupon-status { margin: 12px 0 0; }
#coupon-status:empty { display: none; }

/* Formulário */
.install-form h2 { margin: 0 0 8px; font-size: 24px; line-height: 1.25; }
.form-intro { margin: 0 0 28px; color: var(--meta); font-size: 15px; line-height: 1.6; }
.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px 24px;
  margin-bottom: 32px;
}
.field { min-width: 0; }
label { display: block; margin-bottom: 8px; color: var(--text); font-size: 14px; font-weight: 700; }
input {
  width: 100%;
  min-height: 52px;
  padding: 12px 16px;
  border: 1px solid var(--control-border);
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  color: var(--white);
  font-size: 16px;
  transition: border-color .2s, box-shadow .2s;
}
input::placeholder { color: var(--label); }
input:hover { border-color: var(--meta); }
input:focus-visible { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(43, 125, 225, .3); }
input[aria-invalid='true'] { border-color: var(--error); }
.error { margin-top: 8px; color: var(--error); }
.error:empty { display: none; }
#install { width: 100%; }
#error-summary {
  margin-bottom: 24px;
  padding: 16px;
  border: 1px solid var(--error);
  border-radius: var(--radius-sm);
  color: var(--error);
  font-size: 14px;
  overflow-wrap: anywhere;
}
#installation-status { margin: 16px 0 0; color: var(--meta); font-size: 14px; overflow-wrap: anywhere; }
#installation-status:empty { display: none; }

/* Acompanhamento */
#installation-progress { margin-top: 32px; padding-top: 28px; border-top: 1px solid var(--border-strong); }
#job-state { margin: 0 0 16px; color: var(--white); font-size: 15px; font-weight: 700; }
#job-steps { list-style: none; counter-reset: job-step; margin: 0; padding: 0; }
#job-steps li {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 56px;
  margin: 0;
  padding: 12px 0;
  color: var(--meta);
  font-size: 14px;
  counter-increment: job-step;
}
#job-steps li::before {
  content: counter(job-step);
  display: grid;
  place-items: center;
  flex: 0 0 28px;
  height: 28px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--surface-alt);
  color: var(--meta);
  font: 500 12px/1 var(--mono);
}
#job-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 44px;
  bottom: -8px;
  left: 14px;
  width: 1px;
  background: var(--border-strong);
}
#job-steps li.active { color: var(--blue); font-weight: 700; }
#job-steps li.active::before { color: var(--blue); }
#job-steps li.done { color: var(--text); }
#job-steps li.done::before { content: '✓'; color: var(--canvas); background: var(--blue); border-color: var(--blue); font-size: 15px; }
#oauth {
  margin-top: 24px;
  padding: 24px;
  border: 1px solid var(--blue-border);
  border-radius: var(--radius);
  background: var(--blue-soft);
}
#oauth p { color: var(--meta); font-size: 14px; }
#oauth-code {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin: 16px 0;
  padding: 12px 16px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--canvas);
  color: var(--white);
  font: 700 22px/1.3 var(--mono);
  letter-spacing: .1em;
  overflow-wrap: anywhere;
}
#job-result { color: var(--text); font-size: 14px; overflow-wrap: anywhere; }
#job-result:empty { display: none; }
.secondary {
  min-height: 44px;
  margin-top: 16px;
  padding: 8px 16px;
  border: 1px solid var(--control-border);
  border-radius: 6px;
  background: transparent;
  color: var(--meta);
  font-size: 14px;
}
.secondary:hover:not(:disabled) { background: var(--surface-alt); color: var(--white); }
.secondary:disabled { opacity: .5; }

/* Plano B */
.plan-b {
  margin-top: 24px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
}
.plan-b[open] { padding-bottom: 28px; background: var(--surface); }
.plan-b summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding: 16px 28px;
  border-radius: var(--radius);
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
  list-style: none;
  cursor: pointer;
}
.plan-b summary::-webkit-details-marker { display: none; }
.plan-b summary::after {
  content: '+';
  flex: 0 0 auto;
  color: var(--blue);
  font: 400 22px/1 var(--mono);
  transition: transform .2s;
}
.plan-b[open] summary::after { transform: rotate(45deg); }
.plan-b summary:hover { color: var(--white); }
.plan-b > :not(summary) { margin-left: 28px; margin-right: 28px; }
.plan-b > p { margin-top: 0; }
.plan-b .cta { margin-top: 24px; }
.plan-b small { margin-top: 8px; }

/* Rodapé: única presença da marca */
footer {
  display: flex;
  align-items: center;
  gap: 20px;
  width: min(calc(100% - var(--gutter) * 2), calc(var(--page) - var(--gutter) * 2));
  margin: 0 auto;
  padding: 28px 0 40px;
  border-top: 1px solid var(--border);
  color: var(--label);
  font: 500 12px/1 var(--mono);
  letter-spacing: .16em;
}
footer span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 12px var(--glow);
}

/* Responsivo: leitura contínua, controles confortáveis e caixas integrais. */
@media (max-width: 1100px) {
  .layout { grid-template-columns: 216px minmax(0, 1fr); gap: 24px; }
  .side-nav button { padding-inline: 12px; gap: 10px; }
  .workshop-offer { padding: 32px; }
}
@media (max-width: 860px) {
  .grid { grid-template-columns: minmax(0, 1fr); }
  .lesson-video { padding: 56px 24px 32px; }
  .lesson-video strong { font-size: 24px; }
}
@media (max-width: 720px) {
  :root { --gutter: 20px; }
  .top { margin-top: 20px; margin-bottom: 24px; padding: 32px 16px; }
  .top h1 { font-size: clamp(29px, 6.6vw, 44px); line-height: 1.12; letter-spacing: -.04em; }
  .layout { grid-template-columns: minmax(0, 1fr); gap: 24px; padding-bottom: 64px; }
  .side-nav {
    top: 0;
    z-index: 5;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin: 0 calc(var(--gutter) * -1);
    padding: 12px var(--gutter);
    border-bottom: 1px solid var(--border);
    background: rgba(0, 0, 0, .94);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
  }
  .side-nav button {
    flex-direction: column;
    justify-content: flex-start;
    gap: 10px;
    min-height: 104px;
    padding: 12px 6px;
    text-align: center;
    font-size: 12px;
    line-height: 1.35;
  }
  .side-nav button span { flex-basis: 28px; width: 28px; height: 28px; }
  .lesson-video { padding: 48px 20px 24px; }
  .lesson-video span { top: 20px; left: 24px; font-size: 11px; }
  .lesson-video strong { margin-bottom: 8px; font-size: 22px; }
  .lesson-video p { font-size: 13px; }
  .lesson-note, .install-form { padding: 24px; }
  .lesson-note h3 { font-size: 20px; }
  .workshop-offer { padding: 28px 24px; }
  .workshop-offer h2 { font-size: 26px; }
  .offer-lead { font-size: 15px; }
  .offer-details { gap: 20px; margin-top: 24px; padding: 20px; }
  .offer-price { padding-left: 20px; }
  .offer-price strong { font-size: 36px; }
  .cta { width: 100%; }
  .plan-b summary { padding: 20px; }
  .plan-b > :not(summary) { margin-left: 20px; margin-right: 20px; }
  .plan-b .cta { width: calc(100% - 40px); }
  .coupon { gap: 12px; padding: 12px; }
  .coupon span { font-size: 11px; }
  .coupon strong { font-size: 14px; letter-spacing: .06em; }
  .coupon button { padding-inline: 12px; }
  .next { font-size: 14px; }
}
@media (max-width: 360px) {
  :root { --gutter: 16px; }
  .top h1 { font-size: 27px; }
  .side-nav button { font-size: 11px; }
  .lesson-video { padding: 44px 16px 20px; }
  .lesson-video strong { font-size: 20px; }
  .lesson-video p { max-width: 26ch; font-size: 12px; }
  .lesson-note, .install-form { padding: 20px; }
  .workshop-offer { padding: 24px 20px; }
  .offer-details { grid-template-columns: minmax(0, 1fr); }
  .offer-price { padding: 16px 0 0; border-left: 0; border-top: 1px solid var(--border-strong); }
  .cta { padding: 14px 16px; font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* MediaCard com controles DS Azul e proporção original dos vídeos próprios. */
.lesson-video.has-video:has(.lesson-player) {
  display: block;
  aspect-ratio: auto;
  padding: 0;
  text-align: left;
  box-shadow: none;
}
.lesson-player { width: 100%; min-width: 0; background: var(--surface); }
.lesson-player span { position: static; color: inherit; font: inherit; letter-spacing: normal; }
.player-heading {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-strong);
}
.player-heading span { color: var(--label); font: 400 12px/1.5 var(--mono); letter-spacing: .12em; }
.lesson-player .player-title { max-width: none; margin: 0; font-size: 16px; line-height: 1.5; text-wrap: initial; }
.player-screen { width: 100%; min-height: var(--player-min-size); aspect-ratio: 16 / 9; background: var(--canvas); }
.player-screen:has(video) { position: relative; aspect-ratio: auto; min-height: 0; }
.player-screen video { display: block; width: 100%; height: auto; min-height: 0; object-fit: contain; background: var(--canvas); }
.player-screen iframe { display: block; width: 100%; height: 100%; min-height: var(--player-min-size); border: 0; }
.player-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-strong);
  background: var(--raised);
}
.player-controls button, .player-controls select, .player-retry {
  min-height: var(--control-size);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--control-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--surface-alt);
  font-size: 13px;
  font-weight: 700;
}
.player-controls .player-play { color: var(--canvas); background: var(--blue); border-color: var(--blue); }
.player-controls button:hover, .player-retry:hover { border-color: var(--blue); }
.player-controls button:disabled, .player-controls select:disabled { opacity: .6; }
.player-speed-label { display: flex; align-items: center; gap: var(--space-2); margin: 0; color: var(--meta); font-size: 12px; white-space: nowrap; }
.player-controls .player-speed { min-width: 76px; cursor: pointer; border-color: var(--blue-border); color-scheme: dark; }
.player-controls .player-speed:hover:not(:disabled) { border-color: var(--blue); }
.player-controls .player-speed:disabled { cursor: not-allowed; }
@media (max-width: 480px) { .player-speed-label { margin-left: auto; } .player-speed-label span { display: none; } }

.player-time { color: var(--meta); font: 400 12px/1.5 var(--mono); white-space: nowrap; }
.player-seek { flex: 1 1 100px; min-width: 0; min-height: var(--control-size); accent-color: var(--blue); cursor: pointer; }
.lesson-player .lesson-progress, .lesson-player .player-error {
  margin: 0;
  padding: var(--space-3) var(--space-6) var(--space-4);
  color: var(--meta);
  font-size: 13px;
  line-height: 1.6;
}
.lesson-player .player-error { color: var(--error); }
.player-retry { margin: 0 var(--space-6) var(--space-4); }
.lesson-locked-message, .lesson-stage-status, .lesson-form-gate {
  margin: var(--gutter) 0 0;
  padding: var(--space-4) var(--space-6);
  color: var(--text);
  font-size: 14px;
  border: 1px solid var(--blue-border);
  border-radius: var(--radius);
  background: var(--surface);
}
.lesson-stage-status { margin: 0 0 var(--gutter); }
.side-nav button[aria-disabled='true'] { cursor: not-allowed; }
.side-nav button[aria-disabled='true']::after { content: 'Bloqueado'; position: absolute; right: var(--space-4); bottom: var(--space-1); font-size: 10px; color: var(--label); }
.next[aria-disabled='true'], .next:disabled { color: var(--meta); border-color: var(--border-strong); cursor: not-allowed; }
.lesson-player :focus-visible { outline: 2px solid var(--blue); outline-offset: var(--space-1); }
.lesson-player:fullscreen { display: flex; flex-direction: column; background: var(--canvas); }
.lesson-player:fullscreen .player-screen { flex: 1; min-height: 0; aspect-ratio: auto; }
.lesson-player:fullscreen .player-screen iframe, .lesson-player:fullscreen .player-screen video { min-height: 0; }
.lesson-player:fullscreen .player-screen video { position: absolute; inset: 0; width: 100%; height: 100%; }
@media (max-width: 640px) {
  .player-heading, .player-controls { padding: var(--space-3) var(--space-4); }
  .lesson-player .lesson-progress, .lesson-player .player-error { padding-inline: var(--space-4); }
  .player-retry { margin-inline: var(--space-4); }
  .player-controls { gap: var(--space-2); }
  .player-seek { flex-basis: 100%; order: 3; }
  .player-fullscreen { margin-left: auto; }
}

/* Barra compacta: ações secundárias em ícones, com área de clique de 36px. */
.player-controls { gap: 8px; padding: 10px 12px; }
.player-controls button, .player-controls select { min-height: 36px; font-size: 12px; padding: 6px 10px; }
.player-controls .player-play { min-width: 82px; }
.player-speed-label { gap: 0; }
.player-speed-label span { display: none; }
.player-controls .player-speed { min-width: 0; width: 58px; padding: 6px; }
.player-controls .player-mute, .player-controls .player-fullscreen { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 36px; width: 36px; padding: 0; border-color: transparent; background: transparent; }
.player-controls .player-mute:hover, .player-controls .player-fullscreen:hover { color: var(--blue); background: var(--surface-alt); }
.player-icon { display: block; width: 18px; height: 18px; pointer-events: none; }
.player-volume-off, .player-mute[aria-pressed='true'] .player-volume-on { display: none; }
.player-mute[aria-pressed='true'] .player-volume-off { display: block; }
.player-time { font-size: 11px; }
.player-seek { min-height: 28px; }
@media (max-width: 640px) {
  .player-controls { gap: 6px; padding: 8px; }
  .player-controls .player-play { min-width: 76px; padding-inline: 8px; }
  .player-controls .player-speed { width: 52px; }
  .player-speed-label { margin-left: auto; }
  .player-controls .player-fullscreen { margin-left: 0; }
}

.lesson-player .lesson-announcement {
  position: absolute;
  width: var(--sr-size);
  height: var(--sr-size);
  padding: 0;
  overflow: hidden;
  white-space: nowrap;
  clip-path: inset(50%);
  border: 0;
}

/* StepCard bloqueado: cadeado ocupa o mesmo marcador das etapas. */
.step-marker b { font: inherit; }
.step-marker svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.side-nav button:disabled:hover { background: var(--surface); color: var(--meta); border-color: var(--border-strong); }

/* O streaming mantém a barra compacta; tempo e progresso dividem a mesma área. */
.player-timeline { display: flex; align-items: center; gap: 8px; flex: 1 1 120px; min-width: 0; }
.player-timeline .player-seek { flex: 1 1 50px; min-width: 0; }
.player-controls .player-quality { width: 64px; min-width: 0; padding: 6px; color-scheme: dark; border-color: var(--blue-border); }
.player-quality[hidden] { display: none; }
@media (max-width: 640px) {
  .player-timeline { order: 3; flex: 1 1 100%; }
  .player-timeline .player-seek { flex-basis: 50px; order: 0; }
  .player-controls .player-quality { width: 60px; }
}