.app-tabs{grid-template-columns:repeat(4,minmax(0,1fr));max-width:720px}.app-tabs button{padding-inline:9px}
.demo-start{display:flex;gap:16px;align-items:center;padding:18px 22px;margin-bottom:26px;border:1px solid #fff;border-radius:20px;background:linear-gradient(140deg,#edf7fe,#ddebf4);box-shadow:inset 0 2px 2px #fff,0 5px 16px #142b3d0b;max-width:760px}.demo-start p{margin:0;font-size:14px;line-height:1.65}.demo-play-icon{flex:0 0 44px;width:44px;height:44px;display:grid;place-items:center;font-size:30px;color:#fff;border-radius:50%;background:linear-gradient(140deg,#527b96,#142b3d);box-shadow:inset 0 2px 3px #ffffff66,0 3px 6px #142b3d22}.demo-start b{font-size:16px}
.demo-search-row{display:flex;align-items:flex-end;gap:12px;max-width:760px}.demo-search-row>div{flex:1;min-width:0}.demo-search-row input{background:white;border-radius:14px}.demo-search-row button{width:auto;flex:none;margin:0;min-height:48px;padding:10px 14px;background:#e6eef4;color:var(--navy);border:1px solid #cbdbe6;font-size:13px}
.exercise-filters{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.exercise-filters button{width:auto;margin:0;min-height:44px;padding:10px 15px;font-size:13px;border-radius:24px;color:var(--navy);border:1px solid #d0dee8;background:linear-gradient(145deg,#fff,#e7f0f6);box-shadow:inset 0 1px 2px #fff,0 2px 4px #142b3d08}.exercise-filters button[aria-pressed=true]{background:linear-gradient(145deg,#3e6077,#142b3d);color:#fff;border-color:#52778f;box-shadow:inset 0 2px 2px #ffffff35,0 3px 7px #142b3d20}.exercise-count,.demo-footnote{font-size:13px;color:var(--muted)}.demo-footnote{max-width:760px;line-height:1.7;margin-top:26px}
.exercise-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.exercise-card{display:flex;align-items:center;justify-content:flex-start;gap:14px;text-align:left;margin:0;padding:14px;background:linear-gradient(140deg,#fff,#edf4f9);color:var(--navy);border:1px solid #fff;border-radius:20px;box-shadow:inset 0 2px 2px #fff,0 5px 15px #142b3d0c;min-width:0}.exercise-card:hover{background:#e1eef7;transform:translateY(-1px)}.exercise-card img{flex:0 0 58px;width:58px;height:94px;object-fit:cover;border-radius:11px;background:#d9e7f0}.exercise-card-text{flex:1;min-width:0}.exercise-card strong{display:block;font-size:15px;line-height:1.4;overflow-wrap:anywhere}.exercise-card small{margin:0 0 5px;font-size:10px;text-transform:uppercase;letter-spacing:.07em;font-weight:650}.demo-watch{display:block;font-size:12px;color:#3c6079;margin-top:9px;font-weight:500}.demo-card-play{flex:none;font-size:13px;color:#496f88}
#exercise-player{width:min(480px,calc(100% - 24px));max-height:calc(100dvh - 24px);padding:20px;border:1px solid #d6e5ee;border-radius:24px;color:var(--ink);background:#f6f9fc;overflow:auto;box-shadow:0 24px 80px #07172566}#exercise-player::backdrop{background:#091b2bd9;backdrop-filter:blur(5px)}.demo-dialog-head{display:flex;gap:10px;justify-content:space-between;align-items:flex-start;margin-bottom:14px}.demo-dialog-head .eyebrow{font-size:9px;margin-bottom:6px}.demo-dialog-head h2{font-size:21px;margin:0}.demo-dialog-head button{margin:0;width:44px;height:44px;flex:none;justify-content:center;align-items:center;padding:0;border-radius:50%;background:#e1ebf2;color:var(--navy);font-size:25px}.exercise-frame{aspect-ratio:9/16;max-height:60dvh;width:auto;margin:auto;background:#0b1923;border-radius:14px;overflow:hidden}.exercise-frame iframe{display:block;width:100%;height:100%;border:0}.demo-player-note{font-size:12px;color:var(--muted);margin:14px 0 10px}#exercise-youtube{display:block;color:#244e69;font-size:14px;min-height:44px;padding:8px 0}.demo-modal-open{overflow:hidden}
@media(max-width:900px){.exercise-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:560px){.exercise-grid{grid-template-columns:1fr;gap:10px}.exercise-card{padding:12px 16px}.exercise-card strong{font-size:16px}.demo-search-row{gap:8px}.demo-search-row button{padding:10px;font-size:12px}.demo-start{padding:16px;gap:12px}.app-tabs button{font-size:12px;padding:11px 4px}.exercise-filters{gap:6px}.exercise-filters button{font-size:12px;padding:9px 13px}#exercise-player{padding:16px}.exercise-frame{max-height:57dvh}}@media(prefers-reduced-motion:reduce){.exercise-card:hover{transform:none}}
@media(max-width:560px){#panel-exercises .intro>p:last-child{margin-bottom:20px}#panel-exercises h1{margin-bottom:12px}.demo-start{padding:12px 14px;margin-bottom:18px}.demo-start p{font-size:13px;line-height:1.5}.demo-start b{font-size:14px}.exercise-filters{margin:14px 0}}
.exercise-item{min-width:0;align-self:start;background:linear-gradient(140deg,#fff,#edf4f9);border:1px solid #fff;border-radius:20px;box-shadow:inset 0 2px 2px #fff,0 5px 15px #142b3d0c;overflow:hidden}.exercise-item .exercise-card{border:0;box-shadow:none;border-radius:0;background:transparent}.exercise-item .exercise-card:hover{background:#e1eef7;transform:none}.exercise-details{border:0;border-top:1px solid #dae6ee;padding:0;margin:0}.exercise-details summary{padding:13px 16px;font-size:13px;color:#315a74;min-height:44px;cursor:pointer}.exercise-details[open] summary{font-weight:750;background:#eaf3f9}.exercise-details ol{margin:12px 18px 18px;padding-left:20px;font-size:14px;line-height:1.65}.exercise-details li{padding-left:3px;margin:12px 0}.exercise-details li::marker{font-weight:750;color:#3f657d}