/* Percentage Calculator. Needs /assets/css/modern-tool-cards.css (tokens + .cat-calc accent). */
.pc, .pc *, .pc *::before, .pc *::after { box-sizing: border-box; }
.pc { display: grid; gap: 1rem; }

.pc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
@media (max-width: 720px) { .pc-grid { grid-template-columns: 1fr; } }

.pc-card { background: var(--tc-bg); border: 1px solid var(--tc-border); border-radius: 20px; box-shadow: var(--tc-shadow); overflow: hidden; display: grid; align-content: start; }

.pc-card__head { display: flex; align-items: center; flex-wrap: wrap; gap: .6rem; padding: .9rem 1.25rem; background: var(--tc-surface); border-bottom: 1px solid var(--tc-border); }
.pc-card__head h3 { margin: 0; font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--tc-muted); }
.pc-card__head > i { color: var(--accent); font-size: 1.1rem; }

.pc-card__body { display: grid; gap: .75rem; padding: 1.25rem; }

.pc-sentence { margin: 0; font-size: 1.02rem; line-height: 2.2; color: var(--tc-text); }
.pc-input {
  width: 6.5rem; height: 2.4rem; padding: 0 .7rem; font: inherit; font-size: .95rem; font-weight: 600;
  color: var(--tc-text); background: var(--tc-bg); border: 1px solid var(--tc-border); border-radius: 10px;
  text-align: center; margin: 0 .15rem;
}
.pc-input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }

.pc-result { margin: 0; padding-top: .6rem; border-top: 1px solid var(--tc-border); font-size: 1rem; color: var(--tc-muted); }
.pc-result strong { color: var(--accent); font-size: 1.15rem; font-variant-numeric: tabular-nums; }
.pc-result--error strong { color: #dc2626; }

.pc-foot { margin: 0; display: flex; gap: .5rem; font-size: .84rem; color: var(--tc-muted); }
.pc-foot i { color: var(--accent); margin-top: .15rem; }