:root{--navy:#102d49;--navy-2:#173b59;--blue:#206eaa;--teal:#16a2a1;--ink:#1e354b;--muted:#6b7c8e;--line:#dce6ec;--paper:#f5f8fa;--white:#fff;--shadow:0 16px 45px rgba(18,49,74,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--paper)}button,input,select{font:inherit}button{cursor:pointer}a{color:inherit}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #68cdd3;outline-offset:3px}.skip-link{position:absolute;left:-9999px;top:1rem;background:#fff;padding:.7rem 1rem;z-index:100}.skip-link:focus{left:1rem}.topbar{background:var(--navy);color:#fff}.topbar-inner{max-width:1360px;margin:auto;min-height:78px;padding:0 32px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;gap:12px;align-items:center;text-decoration:none}.brand-mark{height:42px;width:42px;border:1px solid rgba(255,255,255,.32);border-radius:13px;display:grid;place-items:center;font-weight:800;letter-spacing:-2px;font-size:18px}.brand-mark span{color:#59d0d1}.brand-name{font-weight:600;letter-spacing:.17em;font-size:14px;line-height:1.2}.brand-name strong{color:#6bd4d2}.brand-name small{display:block;font-size:9px;letter-spacing:.18em;color:#9db8c9;margin-top:4px}.top-actions{display:flex;gap:8px}.top-link{text-decoration:none;color:#fff;font-size:12px;font-weight:700;letter-spacing:.03em;padding:10px 14px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:9px}.top-link:hover{background:rgba(255,255,255,.18)}.top-link-quiet{background:transparent}.hero{position:relative;overflow:hidden;background:linear-gradient(118deg,#102d49 5%,#174c6b 71%,#116c73 100%);color:#fff}.hero-grid{position:absolute;inset:0;opacity:.12;background-image:linear-gradient(#fff 1px,transparent 1px),linear-gradient(90deg,#fff 1px,transparent 1px);background-size:62px 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rgba(3,24,37,.16)}.primary-button:hover{background:#8ce9df;transform:translateY(-1px)}.primary-button span{margin-left:16px}.secondary-button{color:#e1f4f4;font-weight:700;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:3px}.hero-visual{position:relative;height:320px}.hero-orbit{position:absolute;border:1px solid rgba(255,255,255,.16);border-radius:50%;transform:rotate(-24deg)}.orbit-one{width:310px;height:310px;right:50px;top:10px}.orbit-two{width:430px;height:220px;right:0;top:47px}.hero-stat{position:absolute;background:rgba(255,255,255,.12);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.28);border-radius:20px;box-shadow:0 20px 50px rgba(0,22,38,.15);display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.hero-stat-main{width:210px;height:180px;top:65px;left:40px;padding:24px;background:rgba(255,255,255,.17)}.hero-stat-week{width:160px;height:130px;right:20px;top:12px;padding:20px}.hero-stat-term{width:145px;height:120px;right:45px;bottom:0;padding:20px}.stat-number{font-size:66px;font-weight:850;line-height:1;letter-spacing:-.06em}.hero-stat-week .stat-number,.hero-stat-term .stat-number{font-size:47px}.stat-label{color:#bfe6e6;font-weight:700;margin-top:8px}.hero-spark{position:absolute;color:#9ce6db;font-size:40px}.spark-one{left:0;top:0}.spark-two{right:2%;bottom:0}.how-strip{background:#fff;border-bottom:1px solid var(--line)}.how-inner{max-width:1360px;margin:auto;padding:22px 32px;display:flex;align-items:center;justify-content:space-between;gap:12px}.how-item{display:flex;align-items:center;gap:12px;font-size:13px;font-weight:700;white-space:nowrap}.how-number{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:#e6f4f4;color:#18878c;font-size:11px;font-weight:900}.how-arrow{color:#a9c2cb}.workspace{max-width:1360px;margin:0 auto;padding:58px 32px 90px}.workspace-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:28px}.section-kicker{font-weight:900;color:#229398;font-size:11px;letter-spacing:.17em;margin:0 0 9px}.workspace-head h2{font-size:clamp(28px,3vw,40px);letter-spacing:-.04em;margin:0 0 7px}.workspace-head p:last-child{color:var(--muted);margin:0}.progress-card{display:flex;align-items:center;gap:15px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px 18px 10px 10px;box-shadow:var(--shadow);min-width:205px}.progress-ring{width:60px;height:60px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--teal) var(--progress,0%),#e8f0f3 0)}.progress-ring:before{content:"";position:absolute;width:46px;height:46px;border-radius:50%;background:#fff}.progress-ring span{position:relative;font-size:12px;font-weight:900}.progress-card strong,.progress-card span{display:block}.progress-card strong{font-size:14px}.progress-card div:last-child span{font-size:12px;color:var(--muted);margin-top:3px}.layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:22px;align-items:start}.sidebar{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);position:sticky;top:18px;max-height:calc(100vh - 36px);overflow:auto}.sidebar-top{display:flex;justify-content:space-between;align-items:center;padding:20px 19px 16px;border-bottom:1px solid var(--line)}.sidebar-top strong{font-size:16px}.sidebar-top 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1fr;gap:14px;align-items:start}.resource-label{display:flex;align-items:center;gap:7px;color:#687c8c;font-size:12px;font-weight:900;margin-top:5px}.resource-icon{display:grid;place-items:center;width:23px;height:23px;background:#e9f5f5;border-radius:7px;color:#188389;font-size:12px}.resource-links{display:flex;flex-wrap:wrap;gap:7px}.resource-link{text-decoration:none;border:1px solid #dce9ee;background:#f6fafb;padding:8px 10px;border-radius:8px;color:#215e7e;font-size:12px;font-weight:750;line-height:1.25}.resource-link:hover{border-color:#8cc6d0;background:#eaf6f8}.resource-link .external{color:#6896a6;margin-left:5px}.resource-link.book{max-width:100%}.resource-link.video{background:#f1f5fc;border-color:#e0e8f6;color:#365c8f}.resource-link.quiz{background:#f1eefd;border-color:#e1daf8;color:#624d9d}.resource-empty{font-size:12px;color:#8a9ca8;margin:5px 0 0}.empty-state{background:#fff;border:1px dashed 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@media(max-width:980px){.hero-inner{grid-template-columns:1fr;min-height:auto}.hero-visual{display:none}.how-inner{flex-wrap:wrap;justify-content:center}.how-arrow{display:none}.layout{grid-template-columns:210px minmax(0,1fr)}.toolbar{flex-wrap:wrap}.filters{width:100%}.filter{flex:1}}@media(max-width:700px){.topbar-inner{padding:14px 18px;min-height:70px}.brand-mark{height:38px;width:38px}.brand-name{font-size:11px}.top-actions{gap:5px}.top-link{font-size:11px;padding:8px}.top-link-quiet{display:none}.hero-inner{padding:48px 20px}.hero h1{font-size:39px}.hero-description{font-size:14px}.how-inner{padding:16px 20px;display:grid;grid-template-columns:1fr 1fr;justify-items:start;gap:14px}.how-item{font-size:12px}.workspace{padding:40px 18px 70px}.workspace-head{align-items:start;flex-direction:column}.layout{display:block}.sidebar{display:none}.mobile-week-wrap{display:block;margin:0 0 16px}.mobile-week-wrap label{font-size:12px;font-weight:800;color:#6a8090;display:block;margin-bottom:7px}.mobile-week-wrap select{width:100%;height:46px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);padding:0 12px}.toolbar{display:block}.search{margin-bottom:10px}.filters{display:flex}.lesson-top{padding:18px;flex-direction:column}.lesson-title{font-size:18px}.lesson-resources{padding:16px 18px}.resource-section{display:block}.resource-label{margin:0 0 8px}.resource-link{font-size:12px}.footer{display:block;padding:30px 20px}.footer p{margin-top:12px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.brand-mark{display:flex;align-items:center;justify-content:center;gap:1px;flex:none}.quarter-label{padding:17px 20px 8px;color:#8298a6;font-size:10px;font-weight:900;letter-spacing:.16em}.lesson-topic{margin:8px 0 0;color:#7d8f9d;font-size:12px;line-height:1.4}
@media(max-width:700px){.topbar-inner{flex-wrap:wrap;gap:10px}.top-actions{width:100%}.top-link{flex:1;text-align:center}.top-link-quiet{display:block}}