:root{--ink:#111722;--paper:#f5f2e9;--panel:#fff;--lime:#c8ff3d;--blue:#345cff;--muted:#6d7480;--line:#d8d8d0;--editor:#151922}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.5 Inter,ui-sans-serif,system-ui,sans-serif}button,input{font:inherit}button{cursor:pointer}.eyebrow{font-size:11px;letter-spacing:.17em;font-weight:800}.auth{min-height:100vh;display:grid;grid-template-columns:1.15fr .85fr}.auth-art{background:var(--ink);color:white;padding:8vh 9vw;position:relative;overflow:hidden}.auth-art:after{content:"";position:absolute;width:35vw;height:35vw;border:1px solid #39404c;border-radius:50%;right:-10vw;bottom:-15vw;box-shadow:0 0 0 6vw #111722,0 0 0 calc(6vw + 1px) #39404c}.mark{font:900 48px monospace;color:var(--lime)}.auth h1{font-size:clamp(64px,8vw,120px);line-height:.82;letter-spacing:-.075em;margin:14vh 0 40px}.auth h1 em{font-style:normal;color:var(--lime)}.auth-art>p:not(.eyebrow){font-size:18px;color:#afb5c0}.metric{display:flex;gap:10px;align-items:baseline;margin-top:9vh}.metric b{font-size:36px;color:var(--lime)}.metric span{margin-right:22px;color:#8e96a4}.auth-card{padding:12vh 9vw;background:#fff;display:flex;flex-direction:column;justify-content:center}.auth-card h2{font-size:40px;margin:10px 0 34px}.auth-card label{font-weight:700;font-size:12px;margin:8px 0}.auth-card small{color:#999}.auth-card input,.note-row input{display:block;width:100%;border:1px solid #cfd2d6;background:#fafafa;padding:14px;margin-top:7px;outline:none}.auth-card input:focus{border-color:var(--blue)}button{border:0;background:transparent;padding:11px 16px;font-weight:750}.primary{background:var(--blue);color:#fff}.auth-card .primary{margin-top:25px;padding:16px}.link{color:var(--blue)}.error{color:#c22;min-height:20px}header{height:68px;background:var(--ink);color:white;display:flex;align-items:center;padding:0 3vw}.brand{display:flex;gap:12px;align-items:center;width:30%}.brand>span{font:bold 25px monospace;color:var(--lime)}.brand small,.profile small{display:block;color:#858d9a;font-size:9px;letter-spacing:.14em}nav{height:100%;display:flex}nav button{color:#989eaa;height:100%;border-bottom:2px solid transparent}nav button.active{color:white;border-color:var(--lime)}.profile{margin-left:auto;display:flex;align-items:center;gap:10px}.profile>span{background:var(--lime);color:var(--ink);font-weight:900;width:34px;height:34px;display:grid;place-items:center}.profile button{color:#aaa}.coursebar{height:48px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 3vw;background:#fff;font-size:11px}.coursebar small{color:#7b828d}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#51bc75;margin-right:7px}.save{display:flex;align-items:center;gap:8px;color:#6f7681}.save i{height:8px;width:8px;border-radius:50%;background:#51bc75}.save button{padding:4px}.grid{display:grid;grid-template-columns:250px minmax(420px,1fr) 310px;min-height:calc(100vh - 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