.formula-card{position:relative;background:linear-gradient(160deg,#fff,#f3f6fc);border:1px solid var(--cardline);border-radius:28px;padding:42px 38px;box-shadow:0 30px 70px -34px rgba(21,34,56,.3)}.formula-big{font-family:"JetBrains Mono",monospace;font-weight:700;font-size:clamp(3rem,7vw,4.8rem);text-align:center;color:var(--navy);margin-bottom:6px;letter-spacing:-.03em}.formula-big .fh{color:var(--cyan-deep)}.formula-big sup{color:var(--magenta);font-size:.5em;vertical-align:.9em}.formula-caption{text-align:center;font-family:"JetBrains Mono",monospace;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-mute);margin-bottom:24px}.legend{display:flex;flex-direction:column;gap:12px}.legend-row{display:flex;gap:14px;align-items:flex-start;padding:13px 16px;border-radius:16px;background:var(--lilac-soft);border:1px solid var(--line)}.legend-key{font-family:"JetBrains Mono",monospace;font-weight:700;font-size:1.05rem;min-width:30px;text-align:center}.legend-key.ci{color:var(--navy)}.legend-key.h{color:var(--cyan-deep)}.legend-key.a{color:var(--magenta)}.legend-txt strong{display:block;font-size:.9rem;color:var(--navy);margin-bottom:2px;font-weight:600}.legend-txt span{font-size:.8rem;color:var(--ink-soft);line-height:1.45;font-weight:400}