/* Percentage Calculator (namespaced .pc-*) */
.pc-chips { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 16px; }
.pc-chips-label { font-weight: 700; font-size: 14px; margin-right: 4px; }
.pc-chip { min-height: 40px; padding: 0 15px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); font-size: 14px; font-weight: 600; cursor: pointer; }
.pc-chip:hover { border-color: var(--cat); }
.pc-chip.on { background: var(--cat-tint); border-color: var(--cat); color: var(--cat-ink); }
.pc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.pc-card { padding: 16px; }
.pc-title { display: flex; align-items: center; gap: 10px; margin: 0 0 12px; font-size: 17px; }
.pc-title .num { flex: 0 0 auto; width: 30px; height: 30px; font-size: 14px; }
.pc-line { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-weight: 600; }
.pc-line .seg button { min-height: 36px; padding: 0 12px; }
.pc-in { width: 7.5em; min-height: 44px; padding: 8px 10px; border: 1px solid var(--field); border-radius: 10px; background: var(--surface); font-size: 16px; font-variant-numeric: tabular-nums; }
.pc-in:focus { outline: 2px solid var(--cat); outline-offset: 1px; border-color: var(--cat); }
.pc-out { margin: 14px 0 0; padding: 12px 14px; border-radius: 12px; background: var(--cat-tint); color: var(--cat-ink); display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; }
.pc-out b { font-family: var(--display); font-size: 28px; line-height: 1.1; overflow-wrap: anywhere; }
.pc-out span { font-size: 14px; font-weight: 600; }
.pc-wtitle { margin: 10px 0 4px; font-family: var(--display); font-size: 20px; }
.pc-wtitle span { color: var(--muted); font-family: var(--font); font-size: 16px; font-weight: 600; }
.pc-hint { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
.pc-steps { margin: 0; padding-left: 22px; display: flex; flex-direction: column; gap: 10px; }
.pc-steps li strong { display: block; font-size: 15px; }
.pc-steps code { display: inline-block; margin-top: 3px; padding: 4px 10px; border-radius: 8px; background: var(--soft); font-size: 15px; font-family: ui-monospace, Menlo, Consolas, monospace; }
.pc-answer b { color: var(--ink); }
[dir="rtl"] .pc-steps { padding-left: 0; padding-right: 22px; }