/* Identidade SELLAION: preto profundo + dourado premium */
.vac-course {
  --vac-gold: #D4AF37;
  --vac-gold-2: rgba(212, 175, 55, 0.55);
  --vac-gold-3: rgba(212, 175, 55, 0.25);
  --vac-amber: rgba(255, 193, 90, 0.25);
  --vac-white-warm: rgba(255, 249, 235, 0.92);
  --vac-text: rgba(255, 249, 235, 0.90);
  --vac-muted: rgba(255, 249, 235, 0.70);
  --vac-black: #07070A;

  font-family: "Quicksand", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  border-radius: 18px;
  padding: 18px;
  max-width: 1320px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;

  background: radial-gradient(1200px 600px at 20% 10%, rgba(212,175,55,0.08), transparent 55%),
              radial-gradient(900px 500px at 80% 0%, rgba(255,193,90,0.06), transparent 55%),
              linear-gradient(180deg, #050506 0%, #0a0a10 55%, #050506 100%);
  border: 1px solid rgba(212,175,55,0.18);
  box-shadow: 0 24px 90px rgba(0,0,0,0.55);
}

/* Fundo com partículas (bokeh) + tech lines discretas */
.vac-sellaion-bg,
.vac-sellaion-fg {
  position: absolute;
  inset: -2px;
  pointer-events: none;
  z-index: 0;
}

/* Bokeh */
.vac-sellaion-bg {
  opacity: 1;
  background:
    radial-gradient(circle at 8% 18%, rgba(212,175,55,0.20) 0 2px, transparent 3px),
    radial-gradient(circle at 12% 72%, rgba(212,175,55,0.15) 0 3px, transparent 4px),
    radial-gradient(circle at 22% 35%, rgba(255,193,90,0.12) 0 2px, transparent 3px),
    radial-gradient(circle at 33% 12%, rgba(212,175,55,0.10) 0 4px, transparent 6px),
    radial-gradient(circle at 44% 66%, rgba(212,175,55,0.16) 0 2px, transparent 3px),
    radial-gradient(circle at 61% 24%, rgba(255,193,90,0.10) 0 3px, transparent 5px),
    radial-gradient(circle at 73% 52%, rgba(212,175,55,0.14) 0 2px, transparent 3px),
    radial-gradient(circle at 86% 18%, rgba(212,175,55,0.16) 0 3px, transparent 5px),
    radial-gradient(circle at 92% 78%, rgba(255,193,90,0.10) 0 2px, transparent 3px);
  filter: blur(0.2px);
}

/* Linhas e circuitos (bem discretos, sem neon) + feixe de luz */
.vac-sellaion-fg {
  opacity: 0.9;
  background:
    linear-gradient(90deg, rgba(212,175,55,0.06), transparent 35%, rgba(212,175,55,0.05) 70%, transparent),
    radial-gradient(600px 260px at 50% 0%, rgba(212,175,55,0.12), transparent 60%),
    repeating-linear-gradient(0deg, rgba(212,175,55,0.04) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, rgba(212,175,55,0.025) 0 1px, transparent 1px 34px);
  mix-blend-mode: screen;
}

/* Conteúdo acima do fundo */
.vac-course > *:not(.vac-sellaion-bg):not(.vac-sellaion-fg) {
  position: relative;
  z-index: 1;
}

/* Header */
.vac-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
  align-items: flex-start;
}

.vac-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.vac-logo {
  height: 34px;
  width: auto;
  display: block;
  filter: drop-shadow(0 10px 22px rgba(212,175,55,0.22));
}

.vac-course-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.15;
  color: var(--vac-white-warm);
  text-shadow: 0 10px 28px rgba(212,175,55,0.12);
}

.vac-course-sub {
  font-size: 13px;
  font-weight: 600;
  color: var(--vac-muted);
}

/* Lock box */
.vac-lock-box {
  border: 1px solid rgba(212,175,55,0.20);
  border-radius: 14px;
  padding: 16px;
  background: rgba(8, 8, 12, 0.70);
  backdrop-filter: blur(10px);
  box-shadow: 0 18px 60px rgba(0,0,0,0.45);
}

.vac-lock-title {
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--vac-white-warm);
}

.vac-lock-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.vac-keyword {
  flex: 1;
  padding: 12px 12px;
  border: 1px solid rgba(212,175,55,0.22);
  border-radius: 12px;
  background: rgba(0,0,0,0.35);
  color: var(--vac-text);
  outline: none;
}

.vac-keyword::placeholder {
  color: rgba(255, 249, 235, 0.55);
}

.vac-unlock-btn {
  padding: 12px 14px;
  border: 1px solid rgba(212,175,55,0.40);
  border-radius: 12px;
  cursor: pointer;
  font-weight: 700;
  color: rgba(10,10,14,0.95);
  background: linear-gradient(180deg, rgba(212,175,55,0.95) 0%, rgba(255,193,90,0.85) 100%);
  box-shadow: 0 18px 50px rgba(212,175,55,0.12);
}

.vac-lock-msg {
  margin-top: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--vac-muted);
}

/* Layout grid */
.vac-content {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 16px;
  margin-top: 12px;
}

@media (max-width: 980px) {
  .vac-content {
    grid-template-columns: 1fr;
  }
}

.vac-main {
  min-width: 0;
}

/* Player wrap */
.vac-player-wrap {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(212,175,55,0.18);
  background: rgba(0,0,0,0.65);
  box-shadow: 0 24px 90px rgba(0,0,0,0.55);
}

.vac-player {
  position: relative;
  z-index: 2;
}

.vac-iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  display: block;
}

/* Controls */
.vac-controls {
  position: relative;
  z-index: 3;
  background: rgba(8, 8, 12, 0.70);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(212,175,55,0.16);
  padding: 12px;
}

.vac-breadcrumb {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 249, 235, 0.78);
  margin-bottom: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.vac-bc-sep {
  margin: 0 6px;
  opacity: 0.6;
}

.vac-controls-row {
  display: flex;
  gap: 10px;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.vac-nav,
.vac-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.vac-btn {
  padding: 9px 11px;
  border-radius: 12px;
  border: 1px solid rgba(212,175,55,0.22);
  background: rgba(0,0,0,0.28);
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 249, 235, 0.92);
  box-shadow: 0 18px 55px rgba(0,0,0,0.35);
}

.vac-btn:hover {
  border-color: rgba(212,175,55,0.38);
  box-shadow: 0 22px 70px rgba(212,175,55,0.08);
}

.vac-btn:disabled {
  opacity: 0.40;
  cursor: not-allowed;
}

.vac-current-title {
  margin-top: 10px;
  font-weight: 700;
  font-size: 14px;
  color: rgba(255, 249, 235, 0.92);
}

/* Orientações */
.vac-instructions {
  margin-top: 10px;
  padding: 12px 12px;
  border: 1px solid rgba(212,175,55,0.14);
  border-radius: 14px;
  background: rgba(0,0,0,0.28);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.45;
  color: rgba(255, 249, 235, 0.86);
}

.vac-instructions a {
  color: rgba(255, 249, 235, 0.92);
  text-decoration: underline;
}

.vac-instructions-global {
  box-shadow: inset 0 0 0 1px rgba(212,175,55,0.10);
}

.vac-instructions-lesson {
  border-color: rgba(255, 193, 90, 0.18);
  box-shadow: inset 0 0 0 1px rgba(255, 193, 90, 0.10);
}

/* Aulas list */
.vac-lessons {
  border: 1px solid rgba(212,175,55,0.16);
  border-radius: 18px;
  padding: 12px;
  max-height: 650px;
  overflow: auto;
  background: rgba(8, 8, 12, 0.65);
  backdrop-filter: blur(10px);
  box-shadow: 0 24px 90px rgba(0,0,0,0.45);
}

.vac-lessons-title {
  font-weight: 700;
  margin-bottom: 10px;
  color: rgba(255, 249, 235, 0.92);
}

.vac-lessons-list {
  margin: 0;
  padding-left: 18px;
}

.vac-lesson {
  padding: 10px 10px;
  border-radius: 14px;
  cursor: pointer;
  margin-bottom: 8px;
  border: 1px solid transparent;
  background: rgba(0,0,0,0.22);
  color: rgba(255, 249, 235, 0.86);
}

.vac-lesson:hover {
  border-color: rgba(212,175,55,0.26);
  box-shadow: 0 18px 60px rgba(212,175,55,0.06);
}

.vac-lesson.is-active {
  border-color: rgba(212,175,55,0.45);
  background: rgba(212,175,55,0.08);
  font-weight: 700;
}

.vac-lesson-n {
  margin-right: 6px;
  opacity: 0.80;
  color: rgba(255, 249, 235, 0.75);
}

.vac-box {
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(212,175,55,0.18);
  background: rgba(0,0,0,0.28);
  color: rgba(255, 249, 235, 0.86);
}

.vac-error {
  border-color: rgba(255, 120, 120, 0.35);
}

.vac-warn {
  border-color: rgba(255, 193, 90, 0.28);
}

/* Layout modes */
.vac-layout-normal .vac-content {
  grid-template-columns: 1.4fr 1fr;
}

.vac-layout-wide .vac-content {
  grid-template-columns: 1.9fr 1fr;
}

/* Spotlight (lâmpada) */
.vac-spotlight-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.0);
  z-index: 1;
  pointer-events: none;
  transition: background 180ms ease;
}

.vac-spotlight-on .vac-spotlight-overlay {
  background: rgba(0,0,0,0.70);
}

.vac-spotlight-on .vac-lessons {
  opacity: 0.22;
  filter: blur(0.2px);
  transition: opacity 180ms ease;
}

.vac-spotlight-on .vac-header {
  opacity: 0.55;
  transition: opacity 180ms ease;
}

/* Aumenta a área útil no desktop/notebook e reduz as “faixas” laterais */
@media (min-width: 1024px) {
  .vac-desktop-only {
    width: 100%;
  }

  .vac-desktop-only .vac-course {
    width: min(1480px, 96vw);   /* antes provavelmente estava ~1140px */
    margin-left: auto;
    margin-right: auto;
  }
}