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i{font-style:normal;color:#98a19b}.combo-choices{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:20px}.combo-choices button{border:1px solid var(--line);background:white;border-radius:9px;padding:9px 12px;font-size:10px}.combo-result{text-align:center;display:grid;place-content:center;background:#e7eadb}.result-grade{width:88px;height:88px;margin:auto;border-radius:50%;display:grid;place-items:center;background:var(--green);color:var(--lime);font-size:42px;font-weight:900}.combo-result p{font-size:12px;color:var(--muted);line-height:1.7}.plan-layout{display:grid;grid-template-columns:320px 1fr;gap:18px}.plan-form{padding:27px}.plan-form h2{font-size:25px}.plan-form label{display:grid;gap:8px;font-size:11px;font-weight:700;margin:18px 0}.plan-form output{float:right;color:var(--green2)}.plan-result{min-height:500px}.empty-plan{height:100%;min-height:500px;border:1px dashed #b8c0b9;border-radius:var(--radius);display:grid;place-content:center;text-align:center;color:var(--muted)}.empty-plan>span{width:70px;height:70px;background:#e3e8dc;border-radius:50%;display:grid;place-items:center;margin:auto;font-size:25px;color:var(--green)}.empty-plan h3{color:var(--ink);margin-bottom:0}.empty-plan p{font-size:11px}.generated-plan{display:grid;gap:12px}.plan-day{padding:20px}.plan-day-head{display:flex;justify-content:space-between;align-items:center}.plan-day h3{margin:5px 0}.plan-day-head span{font-size:9px;padding:6px 9px;background:#e5eadc;border-radius:99px}.plan-blocks{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin-top:14px}.plan-block{border-top:3px solid var(--green2);background:#f4f4ee;padding:11px;border-radius:5px 5px 10px 10px;min-height:116px}.plan-block b,.plan-block span{display:block}.plan-block b{font-size:11px}.plan-block span{color:var(--orange);font-size:9px;margin:3px 0 7px}.plan-block p{font-size:9px;color:var(--muted);line-height:1.55;margin:0}.safety-note{font-size:10px;color:var(--muted);padding:10px}.live-pill{font-size:10px;border:1px solid #aab9b0;border-radius:99px;padding:8px 12px}.live-pill i{display:inline-block;width:7px;height:7px;background:#43b270;border-radius:50%;margin-right:5px}.room-lobby{display:grid;grid-template-columns:1fr 70px 1fr;align-items:center;max-width:800px;margin:auto}.room-card{padding:30px}.room-icon{width:53px;height:53px;border-radius:16px;background:var(--green);color:var(--lime);display:grid;place-items:center;font-weight:900}.room-icon.alt{background:#f2d3c7;color:#96391f}.room-card p{font-size:11px;color:var(--muted)}.room-card .btn{margin-top:20px}.room-divider{text-align:center}.room-divider span{background:#e6e7e0;color:var(--muted);font-size:10px;padding:7px;border-radius:50%}.room-arena{padding:27px}.room-top{display:grid;grid-template-columns:1fr 2fr 1fr;align-items:center}.room-top>.btn{justify-self:end}.code-display{border:0;background:transparent;color:var(--green);font-size:22px;font-weight:900;letter-spacing:4px;padding:0}.room-score{text-align:center}.room-score span{display:inline-block;width:100px;font-size:11px}.room-score b{font-size:27px;margin:0 15px}.room-score em{font-style:normal}.room-status{text-align:center;background:#e9eddf;padding:10px;border-radius:10px;font-size:11px;margin:20px 0}.room-play{display:grid;grid-template-columns:1fr 330px;gap:15px}.room-log{height:330px;overflow:auto;background:#f5f4ee;border-radius:14px;padding:15px}.room-controls{border:1px solid var(--line);border-radius:14px;padding:15px}.room-controls .target-grid{margin:15px 0}.toast{position:fixed;right:25px;bottom:25px;background:#172d25;color:white;padding:13px 17px;border-radius:11px;font-size:11px;z-index:100;opacity:0;transform:translateY(15px);pointer-events:none;transition:.25s}.toast.show{opacity:1;transform:none}.hidden{display:none!important}
@media(max-width:1100px){.tech-grid{grid-template-columns:repeat(2,1fr)}.hero{grid-template-columns:1fr}.hero-court{display:none}.plan-blocks{grid-template-columns:repeat(3,1fr)}.footwork-game{grid-template-columns:1fr}.game-info{padding-bottom:10px}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);transition:.25s;width:250px}.sidebar.open{transform:none;box-shadow:15px 0 40px rgba(0,0,0,.2)}.mobile-head{position:sticky;top:0;height:58px;background:rgba(248,246,239,.95);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:space-between;padding:0 14px;z-index:18;border-bottom:1px solid var(--line)}.icon-btn{border:0;background:transparent;font-size:20px}.mini-brand{font-weight:900}.mini-brand span{background:var(--green);color:var(--lime);padding:5px 8px;border-radius:8px;margin-right:7px}main{margin-left:0}.view{padding:24px 16px 50px}.hero{padding:38px 25px;min-height:400px;border-radius:22px}.hero h1{font-size:40px}.hero-actions{flex-direction:column}.section-head{margin-top:34px}.path-grid,.dashboard-grid,.knowledge-layout,.battle-setup,.arena-grid,.combo-game,.plan-layout,.room-play{grid-template-columns:1fr}.path-card{min-height:190px}.stat-row div{padding-left:8px}.glossary{position:static;max-height:none}.page-head{align-items:start}.page-head h1{font-size:35px}.toolbar{display:block}.search{min-width:0;margin-bottom:10px}.chips{width:100%}.tech-grid{grid-template-columns:1fr 1fr}.tech-card{padding:15px;min-height:188px}.opponent-grid{grid-template-columns:1fr}.scoreboard{grid-template-columns:1fr 65px 1fr;padding:14px}.mini-court{height:280px}.footwork-court{margin:10px;min-height:420px;padding:20px;gap:10px}.footwork-court button{width:55px;height:55px}.quiz-game{padding:24px 18px}.quiz-options{grid-template-columns:1fr}.combo-slots{gap:4px}.combo-slots button{width:29%;height:80px}.plan-form{padding:22px}.plan-blocks{grid-template-columns:1fr 1fr}.room-lobby{grid-template-columns:1fr}.room-divider{padding:12px}.room-top{grid-template-columns:1fr}.room-top>*{text-align:center!important;margin:7px}.room-top>.btn{justify-self:center}.room-play{display:flex;flex-direction:column}.room-log{height:250px}.detail-columns{grid-template-columns:1fr}.detail-content{padding:22px}.detail-hero{padding:28px 22px}.game-tabs{overflow:auto}.game-tabs button{white-space:nowrap}}
@media(max-width:430px){.tech-grid{grid-template-columns:1fr}.hero h1{font-size:34px}.page-head{display:block}.head-stat{text-align:left;margin-top:15px}.action-grid{grid-template-columns:repeat(4,1fr)}.scoreboard small i{width:45px}.game-info{padding:25px}.stat-row{grid-template-columns:1fr 1fr;gap:16px}.stat-row div{border:0}.plan-blocks{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation-duration:.001ms!important;transition-duration:.001ms!important}}

/* Action sprite system: eight technically distinct badminton poses. */
.athlete-sprite{background-repeat:no-repeat;background-size:contain;background-position:center;overflow:visible;filter:drop-shadow(0 5px 5px rgba(6,31,23,.22))}
.athlete-sprite[data-pose="ready"]{background-image:url('/assets/actions-v2/ready.png')}
.athlete-sprite[data-pose="clear"]{background-image:url('/assets/actions-v2/clear.png')}
.athlete-sprite[data-pose="smash"]{background-image:url('/assets/actions-v2/smash.png')}
.athlete-sprite[data-pose="drop"]{background-image:url('/assets/actions-v2/drop.png')}
.athlete-sprite[data-pose="drive"]{background-image:url('/assets/actions-v2/drive.png')}
.athlete-sprite[data-pose="net"]{background-image:url('/assets/actions-v2/net.png')}
.athlete-sprite[data-pose="lift"]{background-image:url('/assets/actions-v2/lift.png')}
.athlete-sprite[data-pose="block"]{background-image:url('/assets/actions-v2/block.png')}

.shuttlecock{width:14px;height:21px;position:absolute;transform-origin:50% 85%;z-index:8;filter:drop-shadow(0 2px 2px rgba(0,0,0,.24))}
.shuttlecock:before{content:"";position:absolute;left:4px;bottom:0;width:7px;height:7px;border-radius:50% 50% 45% 45%;background:#f4e1b3;border:1px solid #8d744d;z-index:2}
.shuttlecock:after{content:"";position:absolute;left:1px;top:0;width:12px;height:15px;background:repeating-linear-gradient(90deg,#fff 0 2px,#bbc9c2 2px 3px);clip-path:polygon(18% 0,82% 0,67% 100%,33% 100%);border-radius:3px 3px 5px 5px}

.hero-athlete{position:absolute;width:118px;height:150px;z-index:4;filter:drop-shadow(0 10px 9px rgba(0,0,0,.28))}
.hero-athlete.you{left:13%;bottom:10px;animation:heroStrike 2.8s ease-in-out infinite}
.hero-athlete.rival{right:12%;top:3px;transform:scaleX(-1)}
.hero-shuttle{left:38%;bottom:90px;animation:heroShuttle 2.8s cubic-bezier(.36,.02,.54,1) infinite}
@keyframes heroStrike{0%,15%,100%{transform:translateY(0)}42%{transform:translateY(-8px)}55%{transform:translate(6px,-2px)}}
@keyframes heroShuttle{0%,14%{left:36%;top:68%;transform:rotate(-42deg) scale(.82)}48%{left:54%;top:22%;transform:rotate(52deg) scale(1)}72%,100%{left:76%;top:55%;transform:rotate(128deg) scale(.82)}}

/* Technique detail: side-view court, contact point and trajectory. */
.demo-box{height:238px;background:linear-gradient(180deg,#e9f2e8 0 70%,#c9ddc9 70%);border:1px solid #bfd3c3}
.demo-box:before{inset:auto 0 30%;height:1px;border:0;border-top:2px solid rgba(13,73,59,.25)}
.demo-court-lines{position:absolute;left:5%;right:5%;bottom:12%;height:18%;border:1px solid rgba(13,73,59,.25);border-top-color:rgba(13,73,59,.42);transform:perspective(220px) rotateX(58deg);transform-origin:bottom}
.demo-net{left:55%;right:auto;top:39%;bottom:29%;width:2px;border:0;border-left:3px solid rgba(22,65,51,.72);z-index:3}
.demo-net i{position:absolute;left:-2px;top:0;width:57px;height:30px;border-top:2px solid #f8fff9;background:repeating-linear-gradient(0deg,rgba(255,255,255,.55) 0 1px,transparent 1px 6px),repeating-linear-gradient(90deg,rgba(255,255,255,.48) 0 1px,transparent 1px 7px);transform:skewY(8deg);transform-origin:left top}
.demo-athlete{position:absolute;width:150px;height:190px;left:8%;bottom:8%;z-index:4;animation:demoBody 2.3s ease-in-out infinite}
.demo-box[data-pose="net"] .demo-athlete,.demo-box[data-pose="lift"] .demo-athlete{left:18%;bottom:12%}
.demo-box[data-pose="ready"] .demo-athlete{left:12%;bottom:12%}
@keyframes demoBody{0%,18%,100%{transform:translateX(-2px) scale(.985)}32%,58%{transform:translateX(3px) scale(1.015)}72%{transform:translateX(6px) scale(1)}}
.racket-trail{position:absolute;left:25%;top:19%;width:55px;height:55px;border:3px solid transparent;border-top-color:rgba(255,123,79,.65);border-right-color:rgba(255,123,79,.3);border-radius:50%;z-index:3;transform:rotate(22deg);animation:trailPulse 2.3s ease-in-out infinite}
.demo-box[data-pose="net"] .racket-trail,.demo-box[data-pose="lift"] .racket-trail{left:31%;top:49%;transform:rotate(85deg)}
.demo-box[data-pose="drive"] .racket-trail,.demo-box[data-pose="block"] .racket-trail{left:27%;top:42%;transform:rotate(60deg)}
@keyframes trailPulse{0%,15%,70%,100%{opacity:0;transform:rotate(5deg) scale(.65)}27%,52%{opacity:1;transform:rotate(38deg) scale(1)}}
.demo-contact,.demo-landing{position:absolute;font-size:9px;font-weight:800;color:#0d493b;z-index:9;padding:3px 6px;border-radius:99px;background:rgba(255,253,248,.82);box-shadow:0 2px 7px rgba(0,0,0,.08)}
.demo-contact{left:31%;top:18%}.demo-contact i,.demo-landing i{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:4px}.demo-contact i{background:var(--orange);box-shadow:0 0 0 5px rgba(255,123,79,.18);animation:contactPulse 2.3s ease infinite}.demo-landing{right:7%;bottom:19%}.demo-landing i{background:var(--lime);border:1px solid #6f8832}
.demo-box[data-pose="net"] .demo-contact,.demo-box[data-pose="lift"] .demo-contact{left:37%;top:50%}
.demo-box[data-pose="drive"] .demo-contact,.demo-box[data-pose="block"] .demo-contact{left:34%;top:42%}
@keyframes contactPulse{0%,16%,100%{transform:scale(.65);opacity:.35}32%,50%{transform:scale(1.25);opacity:1}}
.demo-shuttle{left:31%;top:20%;bottom:auto;color:transparent;animation:demoFlat 2.3s cubic-bezier(.3,.02,.55,1) infinite}
.demo-box[data-trajectory="high"] .demo-shuttle{animation-name:demoHigh}
.demo-box[data-trajectory="drop"] .demo-shuttle{animation-name:demoDrop}
.demo-box[data-trajectory="smash"] .demo-shuttle{animation-name:demoSmash}
.demo-box[data-trajectory="push"] .demo-shuttle{animation-name:demoPush}
@keyframes demoFlat{0%,18%{left:31%;top:43%;transform:rotate(-55deg) scale(.85)}52%{left:60%;top:40%;transform:rotate(45deg)}82%,100%{left:88%;top:44%;transform:rotate(112deg) scale(.8)}}
@keyframes demoHigh{0%,18%{left:31%;top:20%;transform:rotate(-38deg) scale(.85)}48%{left:58%;top:4%;transform:rotate(40deg)}84%,100%{left:88%;top:62%;transform:rotate(138deg) scale(.76)}}
@keyframes demoDrop{0%,18%{left:31%;top:21%;transform:rotate(-42deg) scale(.85)}52%{left:54%;top:12%;transform:rotate(36deg)}84%,100%{left:68%;top:57%;transform:rotate(134deg) scale(.8)}}
@keyframes demoSmash{0%,18%{left:33%;top:17%;transform:rotate(-48deg) scale(.9)}46%{left:54%;top:32%;transform:rotate(54deg)}78%,100%{left:82%;top:68%;transform:rotate(142deg) scale(.78)}}
@keyframes demoPush{0%,18%{left:37%;top:51%;transform:rotate(-58deg) scale(.84)}53%{left:61%;top:36%;transform:rotate(40deg)}84%,100%{left:87%;top:42%;transform:rotate(120deg) scale(.78)}}
.demo-caption{position:absolute;right:12px;top:12px;display:grid;text-align:right;padding:7px 9px;border-radius:9px;background:rgba(255,253,248,.83);z-index:10}.demo-caption b{font-size:11px}.demo-caption span{font-size:9px;color:var(--muted)}

/* Battle court: recognisable players, impact pulse and two-shot flight. */
.mini-court{background:linear-gradient(90deg,#2c755f,#327e67 48%,#2c755f);box-shadow:inset 0 0 30px rgba(2,35,25,.22)}
.court-depth{position:absolute;left:5%;right:5%;height:1px;border-top:1px solid rgba(255,255,255,.4);z-index:1}.court-depth-top{top:25%}.court-depth-bottom{bottom:25%}
.court-player{width:100px;height:132px;border-radius:0;background-color:transparent!important;font-size:9px;transition:top .42s ease,bottom .42s ease,left .42s ease;filter:drop-shadow(0 7px 6px rgba(0,0,0,.3))}
.rival-player{left:18%;transform:scaleX(-1);z-index:3}
.user-player{right:17%;z-index:4}
.player-label{position:absolute;left:50%;bottom:-1px;transform:translateX(-50%);padding:2px 7px;border-radius:99px;background:rgba(8,43,32,.83);color:white;font-size:8px;line-height:1.5;box-shadow:0 2px 5px rgba(0,0,0,.2)}
.rival-player .player-label{transform:translateX(-50%) scaleX(-1);background:rgba(158,57,33,.88)}
.court-player.striking{animation:playerStrike .8s cubic-bezier(.2,.78,.35,1)}
.rival-player.striking{animation-delay:.22s}
@keyframes playerStrike{0%,100%{margin-inline:0;filter:drop-shadow(0 7px 6px rgba(0,0,0,.3))}35%{margin-inline:5px;filter:drop-shadow(0 12px 5px rgba(0,0,0,.22))}58%{margin-inline:9px}}
.court-shuttle{left:55%;top:76%;color:transparent;transition:none}
.court-shuttle.play{animation:rallyFlight 1.05s cubic-bezier(.34,.01,.54,1) both}
.court-shuttle[data-flight="clear"]{animation-timing-function:cubic-bezier(.28,.01,.62,.93)}
.court-shuttle[data-flight="smash"]{animation-duration:.72s}
@keyframes rallyFlight{0%{left:58%;top:72%;transform:rotate(-42deg) scale(1)}38%{left:var(--flight-x);top:19%;transform:rotate(48deg) scale(.76)}48%{left:var(--flight-x);top:24%;transform:rotate(104deg) scale(.72)}100%{left:var(--return-x);top:var(--return-y);transform:rotate(218deg) scale(1)}}
.impact-ring{position:absolute;right:35%;bottom:30%;width:14px;height:14px;border:2px solid var(--orange);border-radius:50%;opacity:0;z-index:7}.impact-ring.flash{animation:impactFlash 1.05s ease-out}
@keyframes impactFlash{0%,8%{opacity:0;transform:scale(.3)}22%{opacity:1;transform:scale(1)}42%,100%{opacity:0;transform:scale(3)}}
.court-legend{display:flex;justify-content:center;gap:13px;flex-wrap:wrap;padding-top:11px;font-size:8px;color:var(--muted)}.court-legend i{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:3px}.contact-dot{background:var(--orange)}.landing-dot{background:var(--lime);border:1px solid #758c35}

@media(max-width:760px){.hero-athlete{display:none}.demo-box{height:220px}.demo-athlete{width:120px;height:158px;left:2%;bottom:8%}.court-player{width:80px;height:106px}.rival-player{left:10%}.user-player{right:9%}.demo-contact{left:29%}.demo-caption{max-width:145px}}
@media(prefers-reduced-motion:reduce){.hero-athlete,.hero-shuttle,.demo-athlete,.demo-shuttle,.racket-trail,.demo-contact i,.court-player,.court-shuttle,.impact-ring{animation:none!important}.demo-shuttle{left:73%;top:44%}.court-shuttle{left:50%;top:50%}}