/* RECATOOLS — Polynomial Calculator */
.pc-wrap { padding: 1.25rem; }
.pc-field { margin-bottom: .9rem; }
.pc-field label { display: block; font-size: .8rem; font-weight: 600; color: #1a1814; margin-bottom: .3rem; }
.pc-field input { width: 100%; padding: .65rem .9rem; border: 1px solid #ebebeb; border-radius: 10px; font-size: 1.05rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.pc-field input:focus { outline: none; border-color: #4f46e5; box-shadow: 0 0 0 3px rgba(79,70,229,.15); }
.pc-ops { display: flex; flex-wrap: wrap; gap: .4rem; justify-content: center; margin: 1rem 0; }
.pc-ops label { cursor: pointer; }
.pc-ops input { position: absolute; opacity: 0; }
.pc-ops span { display: inline-block; padding: .45rem .9rem; font-size: .82rem; font-weight: 600; border: 1px solid #ebebeb; border-radius: 999px; color: #6b6760; }
.pc-ops input:checked + span { background: #4f46e5; color: #fff; border-color: #4f46e5; }
.pc-error { margin: 1rem 0 0; padding: .8rem 1rem; background: #fef2f2; border-left: 4px solid #ef4444; border-radius: 10px; color: #991b1b; font-size: .9rem; }
.pc-result { margin-top: 1.25rem; }
.pc-main { text-align: center; font-size: 1.05rem; color: #6b6760; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.pc-answer { text-align: center; font-size: 1.5rem; color: #1a1814; margin-top: .5rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.pc-answer strong { color: #4338ca; }
.pc-meta { text-align: center; font-size: .82rem; color: #9b968d; margin-top: .4rem; }
.pc-rows { display: grid; gap: .4rem; max-width: 340px; margin: 1rem auto 0; }
.pc-row { display: flex; justify-content: space-between; padding: .55rem .9rem; background: #f5f3ff; border: 1px solid #ddd6fe; border-radius: 10px; font-size: .92rem; }
.pc-row span { color: #6b6760; } .pc-row b { color: #4338ca; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }