:root{--study-ink:#252a2b;--study-accent:#476457}
.study-dialog{box-sizing:border-box;width:min(740px,calc(100% - 32px));max-height:calc(100dvh - 40px);padding:0;border:1px solid #d8dbd7;border-radius:2px;background:#ffffff;color:var(--study-ink);box-shadow:0 20px 80px #14252125;text-align:left}
.study-dialog::backdrop{background:#00000050;backdrop-filter:blur(3px)}
.study-dialog *{box-sizing:border-box}
.study-dialog header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 25px;border-bottom:1px solid #e4e5de;font:11px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.08em;text-transform:uppercase;background:#ffffff;position:sticky;top:0;z-index:1}
.study-dialog .study-close{display:grid;place-items:center;cursor:pointer;width:34px;height:34px;padding:0;border:1px solid #daddd5;border-radius:50%;background:transparent;color:#353e37;font:23px/1 system-ui}
.study-dialog .study-body{padding:36px 46px 46px;font:16px/1.8 system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
.study-dialog h2{font:normal 36px/1.18 Georgia,'Times New Roman',serif;letter-spacing:-.025em;margin:0 0 18px;color:#252a2b}
.study-dialog h3{font:600 17px/1.4 system-ui,sans-serif;letter-spacing:0;margin:28px 0 9px;color:#303a33}
.study-dialog p{margin:0 0 18px;font:inherit;color:#4b554e;max-width:none}
.study-dialog .study-meta{font:11px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.04em;color:#65756a;margin-bottom:24px}
.study-dialog .study-note{border-left:2px solid #809584;padding:10px 16px;background:#ffffff;font-size:13px;line-height:1.7}
.study-dialog .study-equation{padding:22px;text-align:center;background:#ffffff;font:22px/1.6 Georgia,serif;border-radius:3px;color:#314d3c}
.study-dialog a{color:#365e4b;text-underline-offset:4px}
.study-dialog button:focus-visible,.study-dialog a:focus-visible{outline:3px solid #759886;outline-offset:4px}
@media(max-width:540px){.study-dialog .study-body{padding:28px 23px 32px;font-size:15px}.study-dialog h2{font-size:29px}.study-dialog header{padding:12px 18px}}