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#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.student-brand{color:#8d6d70;font-size:.72rem;font-weight:800;letter-spacing:.18em}.welcome-mark{display:grid;width:62px;height:62px;margin:28px 0 22px;border-radius:21px;color:#fff;background:linear-gradient(145deg,#cba7aa,#a78487);box-shadow:0 15px 30px #a67e8247;font-family:Georgia,serif;font-size:1.85rem;place-items:center;transform:rotate(-4deg)}.student-card h1{margin:0;color:#302b29;font-size:clamp(1.65rem,7vw,2rem);letter-spacing:-.045em}.student-lead,.student-card--message p,.practice-heading p{margin:10px 0 28px;color:#77706b;font-size:.98rem;line-height:1.65}.student-card form{display:grid;gap:11px}.student-card label{color:#5d5651;font-size:.86rem;font-weight:750}.student-card input{width:100%;padding:15px 16px;border:1px solid #e4dcd4;border-radius:16px;outline:none;color:#332f2c;background:#fff;font-size:1.1rem;letter-spacing:.25em;transition:border-color .16s ease,box-shadow .16s ease}.student-card input:focus{border-color:#b89093;box-shadow:0 0 0 4px #b890931f}.student-card button,.student-primary-action{display:flex;min-height:52px;align-items:center;justify-content:center;margin-top:5px;border:0;border-radius:17px;color:#fff;background:#4b4844;box-shadow:0 12px 24px #413b362e;font-weight:800;text-decoration:none;transition:opacity .16s ease,transform .16s ease}.student-card button:active,.student-primary-action:active{transform:translateY(1px)}.student-card button:disabled{cursor:not-allowed;opacity:.42}.student-privacy,.expiry-note{display:block;margin-top:17px;color:#6f6761;font-size:.76rem;line-height:1.5;text-align:center}.student-error{margin:14px 0 0;color:#ad5157;font-size:.85rem;font-weight:650;text-align:center}.practice-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-top:24px}.practice-heading p{margin-bottom:0}.practice-badge{flex:0 0 auto;padding:7px 10px;border-radius:999px;color:#5d6d61;background:#eaf1e9;font-size:.73rem;font-weight:800}.recommended-card{display:grid;gap:6px;margin:24px 0 14px;padding:17px 18px;border-radius:18px;color:#56665a;background:#edf3ec}.recommended-card small{font-size:.73rem;font-weight:750}.recommended-card strong{color:#344339;font-size:1.03rem}.practice-stage{display:grid;min-height:230px;align-content:center;margin:14px 0 18px;padding:28px;border:1px dashed #e0d8d1;border-radius:22px;background:#faf8f5;text-align:center}.practice-stage>span{color:#b58f92;font-family:Georgia,serif;font-size:2rem}.practice-stage strong{margin-top:12px;font-size:.96rem}.practice-stage p{margin:8px 0 0;color:#8b837c;font-size:.8rem;line-height:1.6}.student-card--message{text-align:center}.student-card--message h1{margin-top:24px}@media(max-width:360px){.student-card{padding:28px 21px 24px;border-radius:24px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}.student-practice-player{width:min(100%,760px);min-height:100dvh;margin:0 auto;padding:max(18px,env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) calc(190px + env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left))}.student-player-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:13px 4px 18px}.student-player-heading>div:first-child{min-width:0}.student-player-heading h1{margin:8px 0 0;color:#302b29;font-size:clamp(1.55rem,7vw,2.15rem);letter-spacing:-.05em;line-height:1.15;overflow-wrap:anywhere}.student-player-heading p{margin:8px 0 0;color:#6f6761;font-size:.86rem}.student-player-heading__actions{display:grid;flex:0 0 auto;gap:6px;min-width:86px}.student-player-heading__actions .practice-badge{text-align:center}.student-download-compact{display:grid}.student-download-compact a,.student-download-compact button{display:flex;min-height:44px;align-items:center;justify-content:center;padding:0 9px;border:1px solid #cdd8cf;border-radius:13px;color:#425a48;background:#f6faf5f5;box-shadow:0 5px 14px #465b4a14;font-size:.7rem;font-weight:850;line-height:1.2;text-align:center;text-decoration:none;white-space:nowrap}.student-download-compact button:disabled{border-color:#ded6cf;color:#6f6761;background:#f3eee9;box-shadow:none;cursor:wait;opacity:1}.student-download-compact button:not(:disabled){border-color:#d5b8b2;color:#744d45;background:#fff8f5;cursor:pointer}.student-download-compact a:focus-visible,.student-download-compact button:focus-visible{outline:3px solid rgba(83,151,103,.22);outline-offset:2px}.student-mode-switch{position:sticky;z-index:30;top:max(8px,env(safe-area-inset-top));display:grid;grid-template-columns:1fr 1fr;gap:5px;padding:5px;border:1px solid rgba(255,255,255,.9);border-radius:18px;background:#f8f4f0e6;box-shadow:0 10px 28px #4c3f361a;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.student-mode-switch button{min-height:44px;border:0;border-radius:13px;color:#756d67;background:transparent;font-size:.86rem;font-weight:800;transition:color .16s ease,background .16s ease,box-shadow .16s ease}.student-mode-switch button[aria-pressed=true]{color:#3b3532;background:#fffdfb;box-shadow:0 5px 16px #4a3c331c}.student-recommendation-strip{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:13px 0;padding:14px 16px;border:1px solid rgba(198,215,199,.62);border-radius:18px;color:#46584b;background:#ecf4eced}.student-recommendation-strip div{display:grid;gap:4px;min-width:0}.student-recommendation-strip small{color:#607064;font-size:.68rem;font-weight:750}.student-recommendation-strip strong{overflow:hidden;font-size:.95rem;text-overflow:ellipsis;white-space:nowrap}.student-recommendation-strip>span{flex:0 0 auto;padding:6px 9px;border-radius:999px;color:#5d7562;background:#ffffffb8;font-size:.69rem;font-weight:800}.student-recommendation-chips{display:flex;gap:7px;margin:-2px 0 12px;padding:2px 2px 5px;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:none;-webkit-overflow-scrolling:touch}.student-recommendation-chips::-webkit-scrollbar{display:none}.student-recommendation-chip{flex:0 0 auto;min-height:44px;padding:0 13px;border:1px solid #ded5ce;border-radius:999px;color:#756b65;background:#fffdfad6;box-shadow:0 4px 12px #4b3e360f;font-size:.75rem;font-weight:800;white-space:nowrap}.student-recommendation-chip[aria-pressed=true]{border-color:#9eb5a1;color:#49604e;background:#e5efe5;box-shadow:0 5px 14px #4b6d5121}.student-youtube-shell{position:relative;width:min(100%,430px);min-height:200px;margin:0 auto 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42%,rgba(255,255,255,.96),transparent 34%),linear-gradient(145deg,#fbf8f4,#f2ebe5);font-size:.78rem;font-weight:750;letter-spacing:-.01em;pointer-events:none}.student-score-image-status.is-failed{z-index:30;pointer-events:auto}.student-score-image-status button{min-height:44px;padding:0 16px;border:0;border-radius:14px;color:#fff;background:#4b4844;box-shadow:0 8px 18px #413b362e;cursor:pointer;font-weight:850}.student-score-image-status button:focus-visible{outline:3px solid rgba(83,151,103,.24);outline-offset:2px}.student-score-annotations{position:absolute;z-index:5;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}.student-measure-hit{position:absolute;z-index:10;min-width:0;min-height:0;padding:0;border:1.5px solid transparent;border-radius:4px;outline:none;background:transparent;cursor:pointer}.student-measure-hit>span{position:absolute;top:3px;left:3px;display:grid;min-width:19px;height:19px;padding:0 4px;border-radius:999px;color:#6e635d;background:#fffcf8e0;box-shadow:0 2px 6px #3b312c1f;font-size:clamp(.52rem,2vw,.67rem);font-weight:850;line-height:1;place-items:center}.student-measure-hit.is-recommended{border-color:#77997d73;background:#89ad8f0d}.student-practice-player[data-practice-mode=recommended] .student-measure-hit.is-muted{background:#ffffff29}.student-measure-hit:focus-visible{border-color:#4e8d60;box-shadow:0 0 0 3px #53976733}.student-measure-hit.is-active{border-color:#33944fb3;background:#3ba55914}.student-measure-hit:disabled{cursor:default}.student-active-marker{position:absolute;z-index:20;width:clamp(10px,2.8vw,16px);height:clamp(10px,2.8vw,16px);border:2px solid rgba(255,255,255,.95);border-radius:50%;background:#35a455;box-shadow:0 0 0 3px #35a45533,0 4px 10px #287a3f59;pointer-events:none;transform:translate(-28%,-55%)}.student-player-controls{position:fixed;z-index:80;right:max(10px,env(safe-area-inset-right));bottom:max(9px,env(safe-area-inset-bottom));left:max(10px,env(safe-area-inset-left));width:min(calc(100% - max(10px,env(safe-area-inset-right)) - max(10px,env(safe-area-inset-left))),736px);margin:0 auto;padding:10px;border:1px solid rgba(255,255,255,.94);border-radius:23px;background:#fffdfaf0;box-shadow:0 20px 58px #3e332c33,inset 0 1px #fffffff2;-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px)}.student-transport-row{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(90px,.65fr);gap:8px}.student-play-button{display:flex;min-height:50px;align-items:center;justify-content:center;gap:9px;border:0;border-radius:16px;color:#fff;background:linear-gradient(145deg,#514d49,#373431);box-shadow:0 10px 22px #37312d33;font-size:.88rem;font-weight:850}.student-play-button>span{font-size:.74rem}.student-now-playing{display:grid;min-width:0;align-content:center;padding:4px 11px;border-radius:16px;background:#f1ece7}.student-now-playing small{color:#6f6761;font-size:.63rem;font-weight:750}.student-now-playing strong{overflow:hidden;color:#4b4440;font-size:.8rem;text-overflow:ellipsis;white-space:nowrap}.student-speed-row{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:4px;margin-top:7px}.student-speed-button{min-width:0;min-height:44px;padding:0 2px;border:0;border-radius:10px;color:#6f6761;background:transparent;font-size:clamp(.65rem,2.7vw,.76rem);font-weight:800}.student-speed-button[aria-pressed=true]{color:#4d6252;background:#e6efe5}.student-player-notice{margin:7px 4px 0;color:#a24f55;font-size:.72rem;font-weight:700;text-align:center}.student-player-footer{display:grid;gap:10px;padding:22px 4px 6px;text-align:center}.student-download-button{display:flex;min-height:50px;align-items:center;justify-content:center;border:1px solid #dacfc6;border-radius:16px;color:#554b46;background:#fffdfae0;font-size:.86rem;font-weight:850;text-decoration:none}.student-player-footer small{color:#6f6761;font-size:.7rem}@media(max-width:430px){.student-practice-player{padding-right:max(10px,env(safe-area-inset-right));padding-left:max(10px,env(safe-area-inset-left))}.student-player-heading{padding-right:3px;padding-left:3px}}@media(max-width:340px){.student-practice-player{padding-right:max(7px,env(safe-area-inset-right));padding-left:max(7px,env(safe-area-inset-left))}.student-player-controls{right:max(6px,env(safe-area-inset-right));left:max(6px,env(safe-area-inset-left));padding:8px;border-radius:20px}.student-play-button{min-height:47px}.student-now-playing{padding-right:8px;padding-left:8px}}