/* V8.35 LAB · exercício + vídeo premium */
.exercise-compact-card{position:relative;border-color:#30302e;background:linear-gradient(180deg,#131313,#0f0f0f);box-shadow:0 8px 22px rgba(0,0,0,.18)}
.exercise-compact-card.with-video{border-color:#584722;box-shadow:0 9px 26px rgba(0,0,0,.24),inset 0 1px rgba(214,182,107,.08)}
.exercise-card-main{grid-template-columns:124px minmax(0,1fr);gap:13px;padding:11px}.exercise-thumb{width:124px;height:104px;border-radius:15px}
.exercise-thumb.has-video:before{content:'VÍDEO';position:absolute;z-index:3;left:7px;top:7px;padding:3px 6px;border-radius:999px;background:rgba(8,8,8,.82);border:1px solid rgba(214,182,107,.48);color:#e1c477;font-size:.48rem;font-weight:900;letter-spacing:.1em}
.exercise-play{width:40px;height:40px;background:rgba(6,6,6,.84);box-shadow:0 4px 18px rgba(0,0,0,.4)}
.exercise-compact-body h3{font-size:1.03rem;line-height:1.16;margin-top:7px}.exercise-compact-meta span{padding:4px 7px;background:#191919}
.exercise-compact-actions{display:grid;grid-template-columns:44px minmax(0,1fr) minmax(0,1fr);padding:8px 10px;gap:7px;background:#0d0d0d}
.exercise-compact-actions .icon-action{width:44px;height:42px}.quick-technique-card,.quick-add-exercise{width:100%;min-height:42px;margin:0;font-size:.69rem;font-weight:900;letter-spacing:.035em}
.quick-technique-card{border-color:#705824;background:linear-gradient(180deg,#1c170c,#141108);color:#e4c46d}.quick-add-exercise{border-color:#343434;background:#151515;color:#f2eee5}
.exercise-detail-title h1{font-size:1.95rem;letter-spacing:-.025em}.exercise-media{border-color:#51411f;box-shadow:0 12px 32px rgba(0,0,0,.28)}
.native-video-preview{min-height:100%;border:0}.native-video-play{width:66px!important;height:66px!important;box-shadow:0 7px 25px rgba(0,0,0,.5)}
.exercise-quick-cues{padding:13px 14px}.exercise-quick-cues span{max-width:88%;font-size:.76rem;padding:9px 11px}
.exercise-facts{background:linear-gradient(180deg,#121212,#0f0f0f)}.tech-block{background:#101010}.tech-block.execution,.tech-block.cues{border-color:#453a21}
.exercise-preview,.student-exercise-card [data-ex-quick]{min-height:40px;border-color:#5a461e!important;background:#171208!important;color:#e0be63!important;font-weight:900!important}
.quick-ex-sheet{border:1px solid #3d3422!important;box-shadow:0 -18px 70px rgba(0,0,0,.62)}.quick-video-wrap,.quick-video-frame{box-shadow:0 10px 28px rgba(0,0,0,.28)}
.quick-sheet-actions .primary-btn{min-height:46px}.exercise-detail-actionbar{border-color:#554522;box-shadow:0 -10px 34px rgba(0,0,0,.5)}
@media(max-width:390px){.exercise-card-main{grid-template-columns:112px minmax(0,1fr);gap:10px;padding:10px}.exercise-thumb{width:112px;height:98px}.exercise-compact-actions{grid-template-columns:42px 1fr 1fr}.quick-technique-card,.quick-add-exercise{font-size:.63rem;padding:7px 6px}.exercise-detail-title h1{font-size:1.72rem}}
.browser-video-external{display:inline-flex;align-items:center;text-decoration:none;border:1px solid #353535!important;background:#111!important;color:#c8c2b8!important}.universal-video-preview{cursor:pointer}

/* AZ video/mobile accessibility hardening */
.quick-sheet-head .icon-action{width:44px;height:44px;min-width:44px;min-height:44px;display:grid;place-items:center}

.exercise-detail-nav .link-btn{min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:8px 6px}

/* T3 · video lifecycle states */
.video-frame{position:relative}.video-playback-loading{position:absolute;inset:0;z-index:3;display:grid;place-content:center;justify-items:center;gap:9px;background:rgba(5,5,5,.86);color:#e8e2d8;text-align:center}.video-playback-loading span{width:30px;height:30px;border:3px solid #3d3525;border-top-color:#d6b66b;border-radius:50%;animation:azVideoSpin .8s linear infinite}.video-playback-loading strong{font-size:.75rem;letter-spacing:.04em}.video-playback-error{min-height:100%;display:grid;grid-template-columns:auto 1fr;gap:10px 12px;align-items:center;padding:18px;background:#0c0c0c}.video-playback-error>span{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;border:1px solid #6b4b36;color:#dfaa86;font-weight:900}.video-playback-error strong,.video-playback-error small{display:block}.video-playback-error small{margin-top:4px;color:#999188;font-size:.68rem}.video-playback-error .ghost-btn{grid-column:1/-1;min-height:44px;margin:0}@keyframes azVideoSpin{to{transform:rotate(360deg)}}