:root{--learn-font:"Segoe UI", Tahoma, Arial, sans-serif;--learn-canvas:#f4f3e9;--learn-paper:#fffefb;--learn-ink:#25413a;--learn-primary:#4d7945;--learn-brand:#417344;--learn-muted:#61735a;--learn-line:#dce5d4;--learn-soft:#eaf2e2;--learn-focus:#af793d;--learn-radius-panel:22px;--learn-radius-control:10px;--learn-shadow:0 10px 28px #52633f15;font-family:var(--learn-font);color:var(--learn-ink);background:var(--learn-canvas);font-synthesis:none;--surface:#fff;--ink:#193a35;--muted:#62746c;--accent:#146e57;--line:#dde4da}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--learn-focus);outline-offset:4px}button{justify-content:center;align-items:center;gap:7px;display:inline-flex}a{color:inherit}a:focus-visible,select:focus-visible{outline:3px solid var(--learn-focus);outline-offset:3px}.app-shell{min-height:100dvh}