/* Base do player das aulas (modelos 2 e 3). Cores vêm das variáveis da página. */
.stage { position: relative; aspect-ratio: 16/9; width: 100%; overflow: hidden; background: #1d1c1b; }
.stage > * { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.stage video { background: #000; }
.poster { cursor: pointer; display: grid; place-items: center; background-size: cover; background-position: center; }
.poster::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(29,28,27,0) 40%, rgba(29,28,27,.6)); transition: background .5s var(--ease); }
.poster:hover::before { background: linear-gradient(180deg, rgba(29,28,27,.1) 30%, rgba(29,28,27,.66)); }
.playbtn { position: relative; width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center;
  background: var(--play-bg, rgba(255,253,250,.92)); box-shadow: 0 18px 40px -12px rgba(0,0,0,.45); transition: transform .45s var(--ease); }
.playbtn::before { content: ""; border-left: 20px solid var(--play-fg, #2B2A28); border-block: 12px solid transparent; margin-left: 6px; }
.poster:hover .playbtn { transform: scale(1.06); }
.poster .cap { position: absolute; left: 24px; bottom: 20px; right: 24px; color: #fff; display: flex; justify-content: space-between; gap: 16px; font: 500 11px/1 var(--sans); letter-spacing: .22em; text-transform: uppercase; opacity: .9; }
.state { display: grid; place-items: center; text-align: center; padding: 24px; color: #F7F3EE; background: linear-gradient(150deg, #34322f, #1d1c1b); }
.state h3 { font: 400 clamp(22px, 3vw, 30px)/1.2 var(--serif); margin: 14px 0 8px; }
.state p { margin: 0 0 20px; color: rgba(247,243,238,.65); font-size: 14px; }
.state .btn { min-height: 44px; padding: 0 22px; }
.state .btn-line { color: #F7F3EE; border-color: rgba(247,243,238,.3); }
.state .row { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.loading { background: rgba(29,28,27,.75); display: grid; place-items: center; pointer-events: none; transition: opacity .4s; }
.loading.hide { opacity: 0; }
.spinner { width: 42px; height: 42px; border-radius: 50%; border: 1.5px solid rgba(217,190,133,.25); border-top-color: #D9BE85; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (max-width: 820px) { .playbtn { width: 68px; height: 68px; } }