body[data-workspace="study"] .astronomy-classroom{display:flex;flex-direction:column;gap:16px;min-width:0;width:100%;max-width:none;margin:0;padding:0 0 28px;color:#e9f0ff}
body[data-workspace="study"] .classroom-hero{position:relative;isolation:isolate;display:flex;align-items:center;justify-content:space-between;gap:22px;min-height:230px;overflow:hidden;padding:28px clamp(20px,3vw,40px);border:1px solid #3b5285;border-radius:18px;background:radial-gradient(ellipse at 80% 0,#6578cc38,transparent 42%),linear-gradient(118deg,#111d3e,#1b2d5c 64%,#183b56);box-shadow:0 18px 46px #02081775}
body[data-workspace="study"] .classroom-hero:after{content:"";position:absolute;z-index:-1;inset:0;background-image:radial-gradient(#c4d2ff6e .7px,transparent .7px);background-size:29px 29px;opacity:.13}
body[data-workspace="study"] .classroom-kicker{display:block;color:#9faeff;font-size:9px;font-weight:900;letter-spacing:.17em}
body[data-workspace="study"] .classroom-hero h2{margin:8px 0 7px;color:#f4f6ff;font-size:clamp(25px,3vw,38px);font-weight:850;letter-spacing:-.05em}
body[data-workspace="study"] .classroom-hero p{max-width:760px;margin:0;color:#bdcbed;font-size:12px;line-height:1.8}
body[data-workspace="study"] .classroom-hero__copy{position:relative;z-index:1;min-width:0}
body[data-workspace="study"] .classroom-hero__actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:17px}
body[data-workspace="study"] .classroom-hero__actions button,body[data-workspace="study"] .classroom-resume>button{min-height:36px;padding:8px 12px;border:1px solid #8798d18a;border-radius:7px;background:#3c58a6;color:#fff;font-size:9px;font-weight:850}
body[data-workspace="study"] .classroom-hero__actions button+button{border-color:#60769b;background:#20395e}
body[data-workspace="study"] .classroom-hero__orb{position:relative;display:grid;place-items:center;width:164px;height:164px;flex:0 0 164px;border:1px solid #a1b4f24a;border-radius:50%;background:radial-gradient(circle,#5366ae34,transparent 64%);box-shadow:0 0 0 16px #b7c6ff08,0 0 0 32px #b7c6ff06}
body[data-workspace="study"] .classroom-hero__orb .orbit{position:absolute;inset:12px;border:1px solid #b9c7ff66;border-radius:50%;transform:rotate(-25deg) scaleY(.46)}
body[data-workspace="study"] .classroom-hero__orb .orbit-b{inset:29px;transform:rotate(52deg) scaleY(.48);border-color:#80d9ed70}
body[data-workspace="study"] .classroom-hero__orb .planet-main{display:grid;place-items:center;width:56px;height:56px;border:1px solid #d1d6ff80;border-radius:50%;background:radial-gradient(circle at 35% 25%,#d5dcff,#6d78cd 48%,#283e79);color:#fff;font-size:22px;box-shadow:0 0 36px #9cafff66}
body[data-workspace="study"] .classroom-hero__orb .planet-small{position:absolute;right:6px;top:50px;display:grid;place-items:center;width:16px;height:16px;border-radius:50%;background:#86d9e7;color:#17304b;box-shadow:0 0 15px #86d9e7}
body[data-workspace="study"] .classroom-hero__orb>b{position:absolute;bottom:22px;color:#d3dcff;font-size:7px;letter-spacing:.2em;line-height:1.5;text-align:center}
body[data-workspace="study"] .classroom-control,body[data-workspace="study"] .classroom-module-section,body[data-workspace="study"] .classroom-progress-panel{min-width:0;padding:16px 18px;border:1px solid #34466f;border-radius:13px;background:#101d3a;box-shadow:0 8px 24px #02081742}
body[data-workspace="study"] .classroom-control__title{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:12px}
body[data-workspace="study"] .classroom-control__title>div:first-child{display:flex;flex-direction:column;gap:3px}
body[data-workspace="study"] .classroom-control__title strong{color:#e7eeff;font-size:14px}
body[data-workspace="study"] .classroom-control__title small{color:#92a6cf;font-size:9px}
body[data-workspace="study"] .classroom-levels{display:flex;gap:5px;padding:4px;border:1px solid #334879;border-radius:8px;background:#0b1731}
body[data-workspace="study"] .classroom-level{min-width:58px;padding:7px 11px;border:1px solid transparent;border-radius:5px;background:transparent;color:#a9badc;font-size:9px;font-weight:800}
body[data-workspace="study"] .classroom-level.active{border-color:#7288cd;background:#314b88;color:#fff}
body[data-workspace="study"] .classroom-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
body[data-workspace="study"] .classroom-metric{display:flex;flex-direction:column;gap:5px;min-width:0;padding:11px;border:1px solid #344970;border-radius:8px;background:#15264a}
body[data-workspace="study"] .classroom-metric>span{color:#9eafd3;font-size:9px}
body[data-workspace="study"] .classroom-metric>strong{color:#f1f4ff;font-size:23px;font-weight:850;line-height:1.1;font-variant-numeric:tabular-nums}
body[data-workspace="study"] .classroom-metric>small{color:#879cc4;font-size:8px}
body[data-workspace="study"] .classroom-metric--0{border-top:2px solid #6c9bf5}body[data-workspace="study"] .classroom-metric--1{border-top:2px solid #9b87e9}body[data-workspace="study"] .classroom-metric--2{border-top:2px solid #65c7d5}body[data-workspace="study"] .classroom-metric--3{border-top:2px solid #dbad62}
body[data-workspace="study"] .classroom-resume{display:flex;align-items:center;gap:16px;padding:13px 16px;border:1px solid #46649a;border-left:4px solid #78a6f5;border-radius:10px;background:linear-gradient(110deg,#1a2d55,#142444)}
body[data-workspace="study"] .classroom-resume>div:first-child{display:flex;flex:1;flex-direction:column;gap:3px;min-width:0}
body[data-workspace="study"] .classroom-resume strong{color:#f0f4ff;font-size:12px}
body[data-workspace="study"] .classroom-resume small{color:#9eb1d8;font-size:9px}
body[data-workspace="study"] .classroom-resume__progress{display:flex;align-items:center;gap:8px;width:140px;color:#b9caf0;font-size:10px}
body[data-workspace="study"] .classroom-resume__progress i{height:6px;flex:1;overflow:hidden;border-radius:8px;background:#0a1730}
body[data-workspace="study"] .classroom-resume__progress i span{display:block;height:100%;border-radius:8px;background:linear-gradient(90deg,#4f9af4,#7bd8e6)}
body[data-workspace="study"] .classroom-resume.is-idle{border-left-color:#8a82dc}
body[data-workspace="study"] .classroom-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:12px}
body[data-workspace="study"] .classroom-section-head h3{margin:3px 0;color:#eef3ff;font-size:16px}
body[data-workspace="study"] .classroom-section-head p{margin:3px 0 0;color:#92a6cb;font-size:9px;line-height:1.6}
body[data-workspace="study"] .classroom-path-badge{padding:6px 8px;border:1px solid #446b76;border-radius:5px;background:#152f48;color:#9cd9dd;font-size:8px;font-weight:850}
body[data-workspace="study"] .classroom-module-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}
body[data-workspace="study"] .classroom-module{display:flex;flex-direction:column;align-items:flex-start;gap:6px;min-width:0;min-height:135px;padding:13px;border:1px solid #384e7b;border-radius:9px;background:linear-gradient(145deg,#1a2d55,#132443);text-align:left;cursor:pointer;transition:transform .18s,border-color .18s,background .18s}
body[data-workspace="study"] .classroom-module:hover{transform:translateY(-2px);border-color:#738dc9;background:linear-gradient(145deg,#233b6d,#172d50)}
body[data-workspace="study"] .classroom-module__number{color:#859bc9;font-size:8px;font-weight:900;letter-spacing:.15em}
body[data-workspace="study"] .classroom-module__icon{display:grid;place-items:center;width:28px;height:28px;border:1px solid #506699;border-radius:7px;background:#253d6c;color:#b7d2f8;font-size:15px}
body[data-workspace="study"] .classroom-module>strong{color:#eef3ff;font-size:11px}
body[data-workspace="study"] .classroom-module>small{min-height:28px;color:#9fb1d3;font-size:8px;line-height:1.55}
body[data-workspace="study"] .classroom-module>b{margin-top:auto;color:#85dce1;font-size:8px;font-weight:850}
body[data-workspace="study"] .classroom-module--violet{border-top:2px solid #a38eea}body[data-workspace="study"] .classroom-module--amber{border-top:2px solid #d1a75e}body[data-workspace="study"] .classroom-module--mint{border-top:2px solid #59b9a4}
body[data-workspace="study"] .classroom-progress-panel .classroom-progress-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
body[data-workspace="study"] .classroom-progress-grid>div{display:flex;flex-direction:column;gap:4px;padding:11px;border:1px solid #344970;border-radius:8px;background:#15264a}
body[data-workspace="study"] .classroom-progress-grid span{color:#9eafd3;font-size:9px}
body[data-workspace="study"] .classroom-progress-grid strong{color:#f1f4ff;font-size:21px}
body[data-workspace="study"] .classroom-progress-grid small{color:#879cc4;font-size:8px}
body[data-workspace="study"] .classroom-existing-learning{min-width:0;padding:0}
body[data-workspace="study"] .classroom-existing-learning .w9-home-heading{display:none}
body[data-workspace="study"] .classroom-existing-learning .sec-title:has(+.quick-grid){display:none}
body[data-workspace="study"] .classroom-existing-learning .quick-grid{display:none}
body[data-workspace="study"] .classroom-existing-learning .version{color:#6c7da4}
@media(max-width:1120px){body[data-workspace="study"] .classroom-module-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:780px){body[data-workspace="study"] .classroom-hero{min-height:0;padding:20px}.classroom-hero__orb{width:120px;height:120px;flex-basis:120px}.classroom-control__title{align-items:flex-start;flex-direction:column}.classroom-metrics,.classroom-progress-panel .classroom-progress-grid{grid-template-columns:repeat(2,minmax(0,1fr))}body[data-workspace="study"] .classroom-resume{align-items:flex-start;flex-wrap:wrap}body[data-workspace="study"] .classroom-resume__progress{width:100%}}
@media(max-width:560px){body[data-workspace="study"] .classroom-hero__orb{display:none}body[data-workspace="study"] .classroom-module-grid{grid-template-columns:1fr 1fr}body[data-workspace="study"] .classroom-section-head{align-items:flex-start;flex-direction:column}body[data-workspace="study"] .classroom-module{min-height:125px;padding:10px}body[data-workspace="study"] .classroom-module>small{min-height:0}}
@media(prefers-reduced-motion:reduce){body[data-workspace="study"] .astronomy-classroom *{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
body[data-workspace="study"] .app{grid-template-columns:244px minmax(0,1fr);grid-template-rows:76px minmax(0,1fr);grid-template-areas:"brand brand" "tabs view";gap:0;width:100%;max-width:none;margin:0;padding:0;min-height:100vh}
body[data-workspace="study"] .navbar{grid-area:brand;position:relative;top:auto;left:auto;right:auto;bottom:auto;width:100%;max-width:none;height:76px;margin:0;padding:12px 24px;transform:none;justify-self:stretch;align-self:stretch;border:0;border-bottom:1px solid #2d4168;border-right:0}
body[data-workspace="study"] .tabbar{grid-area:tabs;position:sticky;inset:auto;left:auto;right:auto;bottom:auto;top:0;align-self:stretch;justify-self:stretch;display:flex;flex-direction:column;width:100%;max-width:none;min-width:0;height:calc(100vh - 76px);margin:0;padding:18px 13px;transform:none;overflow:auto;border:0;border-right:1px solid #2d4168;border-radius:0;background:#0b1733}
body[data-workspace="study"] .tabbar button{display:flex;flex-direction:row;align-items:center;justify-content:flex-start;width:100%;min-width:0;gap:12px;min-height:48px;padding:10px 13px}
body[data-workspace="study"] .tabbar button .ico{display:inline-grid;place-items:center;width:24px;flex:0 0 24px;margin:0;text-align:center;color:#9dd9ef}
body[data-workspace="study"] #view{grid-area:view;min-width:0;width:100%;max-width:none;height:calc(100vh - 76px);overflow:auto;margin:0;padding:20px 24px 32px;border:0;border-radius:0;background:linear-gradient(150deg,#0e1a38,#09142b);box-shadow:none;box-sizing:border-box}
@media(max-width:900px){body[data-workspace="study"] .app{grid-template-columns:200px minmax(0,1fr)}body[data-workspace="study"] #view{padding:14px}}
@media(max-width:680px){body[data-workspace="study"] .app{display:flex;flex-direction:column;min-height:100vh;padding-bottom:76px}body[data-workspace="study"] .navbar{position:relative;width:100%;height:auto;min-height:54px;justify-content:flex-start;padding:10px 14px;border-bottom:1px solid #2d4168}body[data-workspace="study"] .tabbar{position:fixed;z-index:80;inset:auto 0 0;display:flex;flex-direction:row;justify-content:space-around;gap:2px;width:100%;height:68px;padding:6px 5px;border:0;border-top:1px solid #34466f;background:#0b1733f5}body[data-workspace="study"] .tabbar button{flex:1;flex-direction:column;justify-content:center;gap:1px;min-height:52px;padding:3px 1px;font-size:10px}body[data-workspace="study"] .tabbar button .ico{font-size:16px}body[data-workspace="study"] #view{height:auto;min-height:0;overflow:visible;width:100%;padding:14px 12px 22px}}


/* Question-bank evidence coverage: source candidates are not equivalent to reviewed answers. */
body[data-workspace="study"] .classroom-evidence{display:flex;flex-direction:column;gap:13px;margin:14px 0 16px;padding:17px 19px;border:1px solid #8b7d4b;border-left:4px solid #e7bd63;border-radius:14px;background:linear-gradient(120deg,#18223d,#1c2942 65%,#25283f);box-shadow:0 12px 28px #02081755}
body[data-workspace="study"] .classroom-evidence__head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
body[data-workspace="study"] .classroom-evidence h3{margin:4px 0 5px;color:#f5edda;font-size:16px}
body[data-workspace="study"] .classroom-evidence p{margin:0;color:#b9c5d9;font-size:11px;line-height:1.7}
body[data-workspace="study"] .classroom-evidence__state{flex:0 0 auto;padding:7px 9px;border:1px solid #897647;border-radius:7px;background:#473d29;color:#f4d79a;font-size:9px;font-weight:800;letter-spacing:.06em}
body[data-workspace="study"] .classroom-evidence__metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
body[data-workspace="study"] .classroom-evidence__metrics article{display:flex;min-width:0;flex-direction:column;gap:4px;padding:10px 12px;border:1px solid #3b4964;border-radius:9px;background:#111c34}
body[data-workspace="study"] .classroom-evidence__metrics article span{color:#9eafc9;font-size:10px}
body[data-workspace="study"] .classroom-evidence__metrics article strong{color:#f6f2e8;font-size:22px;font-variant-numeric:tabular-nums}
body[data-workspace="study"] .classroom-evidence__metrics article small{color:#8395b3;font-size:9px;line-height:1.5}
body[data-workspace="study"] .classroom-evidence__note{padding:10px 12px;border-radius:8px;background:#3a3427;color:#f1d89f!important}
@media(max-width:780px){body[data-workspace="study"] .classroom-evidence__metrics{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:520px){body[data-workspace="study"] .classroom-evidence{padding:14px 12px}body[data-workspace="study"] .classroom-evidence__head{flex-direction:column}body[data-workspace="study"] .classroom-evidence__state{white-space:normal}}