/* Protocol One Peptide Calculator
   Mobile-first. Inherits site tokens (--cream, --black, --coral, --ink-50, --gap-*, --t-*).
*/

.pc-disclaimer {
  background: var(--cream);
  border: 1.5px solid var(--black);
  padding: var(--gap-s);
  margin-bottom: var(--gap-m);
}
.pc-disclaimer p {
  font-size: var(--t-meta);
  line-height: 1.5;
  margin: 0;
  color: var(--black-soft, var(--black));
}

.pc-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap-m);
  margin-bottom: var(--gap-m);
}

@media (min-width: 900px) {
  /* The site article body is a fixed ~755px reading column left-aligned in a
     wider centered body, which boxes this TOOL into a narrow left strip with a
     large right gutter. Override (page-scoped - this CSS only loads here) so the
     calculator fills the full article width and aligns with the hero above it. */
  .article__body { grid-template-columns: minmax(0, 1fr); }
  /* Prose sections stay at a comfortable reading width, left-anchored so every
     section shares the same left edge as the tool. */
  .pc-faq, .pc-cross-link { max-width: 820px; }

  .pc-layout {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }
  .pc-result {
    position: sticky;
    top: var(--gap-m);
  }
}

.pc-inputs {
  background: var(--cream);
  border: 1.5px solid var(--black);
  padding: var(--gap-m);
}

.pc-field {
  margin-bottom: var(--gap-m);
}
.pc-field:last-child {
  margin-bottom: 0;
}

.pc-label {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-eyebrow);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 0.5rem;
}

.pc-help {
  font-size: var(--t-meta);
  color: var(--ink-50);
  margin: 0.4rem 0 0;
  line-height: 1.4;
}

.pc-select,
.pc-input {
  width: 100%;
  min-height: 44px;
  font-size: 16px; /* prevents iOS focus zoom */
  font-family: 'IBM Plex Sans', sans-serif;
  padding: 0.7rem 0.9rem;
  background: white;
  border: 1.5px solid var(--black);
  color: var(--black);
  -webkit-appearance: none;
  appearance: none;
  border-radius: 0;
}
.pc-select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' fill='none' stroke='%23000' stroke-width='1.5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.5rem;
}
.pc-select:focus,
.pc-input:focus {
  outline: 2px solid var(--coral);
  outline-offset: 1px;
}

.pc-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
}

.pc-chip {
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem 0.85rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-meta);
  font-weight: 500;
  letter-spacing: 0.02em;
  background: white;
  border: 1.5px solid var(--black);
  color: var(--black);
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.pc-chip:hover {
  background: var(--coral-faint, #fbe9e3);
}
.pc-chip--active,
.pc-chip[aria-pressed="true"] {
  background: var(--black);
  color: var(--cream);
  border-color: var(--black);
}

.pc-dose-row {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}
.pc-input--inline {
  flex: 1;
}

.pc-unit-toggle {
  display: flex;
  border: 1.5px solid var(--black);
}
.pc-unit {
  min-height: 44px;
  min-width: 50px;
  padding: 0 0.85rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-meta);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: white;
  border: 0;
  color: var(--black);
  cursor: pointer;
}
.pc-unit + .pc-unit {
  border-left: 1.5px solid var(--black);
}
.pc-unit--active,
.pc-unit[aria-pressed="true"] {
  background: var(--black);
  color: var(--cream);
}

.pc-mode-note {
  font-size: var(--t-meta);
  background: var(--cream);
  border: 1px solid var(--black);
  padding: 0.6rem 0.85rem;
  margin: 0;
  color: var(--black-soft, var(--black));
  line-height: 1.5;
}

.pc-warning {
  background: #fef7e6;
  border: 1.5px solid #d4a017;
  padding: 0.7rem 0.9rem;
  margin-top: var(--gap-s);
}
.pc-warning p {
  font-size: var(--t-meta);
  line-height: 1.5;
  margin: 0;
  color: #6e4c00;
}

.pc-result {
  background: var(--black);
  color: var(--cream);
  padding: var(--gap-m);
  min-height: 240px;
}
.pc-result__inner {
  /* sticky wrapper */
}
.pc-result__eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-eyebrow);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--coral);
  margin: 0 0 var(--gap-s);
}
.pc-result__empty {
  font-size: var(--t-meta);
  color: var(--cream);
  opacity: 0.7;
  line-height: 1.5;
  margin: 0;
}
.pc-result__grid {
  margin: 0;
}
.pc-result__row {
  border-bottom: 1px solid rgba(245, 240, 230, 0.18);
  padding: 0.7rem 0;
}
.pc-result__row:last-child {
  border-bottom: 0;
}
.pc-result__row dt {
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-eyebrow);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.7;
  margin-bottom: 0.3rem;
}
.pc-result__row dd {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 1.1rem;
  margin: 0;
  color: var(--cream);
}
.pc-result__row--lead {
  padding-top: 0;
}
.pc-result__hero {
  font-family: 'Fraunces', serif;
  font-variation-settings: "opsz" 96, "SOFT" 30, "WONK" 1;
  font-size: clamp(2.2rem, 1.6rem + 3vw, 3.6rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--coral);
  margin: 0;
}
.pc-result__sub {
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-meta);
  color: var(--cream);
  opacity: 0.8;
  margin: 0.35rem 0 0;
}
.pc-result__cta {
  margin: var(--gap-s) 0 0;
}
.pc-result__cta a {
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-eyebrow);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--coral);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}
.pc-result__cta a:hover {
  color: var(--cream);
}
.pc-result .pc-warning {
  background: rgba(212, 160, 23, 0.15);
  border-color: #d4a017;
  margin-top: var(--gap-s);
}
.pc-result .pc-warning p {
  color: #fbe09b;
}

.pc-affiliate {
  background: var(--cream);
  border: 1.5px solid var(--coral);
  padding: var(--gap-m);
  margin-bottom: var(--gap-m);
}
.pc-affiliate__eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-eyebrow);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--coral);
  margin: 0 0 0.5rem;
}
.pc-affiliate__body {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  margin: 0 0 var(--gap-s);
  color: var(--black);
}
.pc-affiliate__cta {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-eyebrow);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--coral);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}
.pc-affiliate__cta:hover {
  color: var(--black);
}
/* Primary partner CTA (direct affiliate deep-link) - rendered as a solid button
   above the matrix link to drive direct attribution while preserving comparison option. */
.pc-affiliate__cta--partner {
  display: inline-block;
  margin: 0 0 0.65rem;
  padding: 0.7rem 1.1rem;
  background: var(--black);
  color: var(--cream);
  border: 1.5px solid var(--black);
  border-bottom-color: var(--black);
  min-height: 44px;
  transition: background 0.12s, color 0.12s;
}
.pc-affiliate__cta--partner:hover {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--cream);
}
.pc-affiliate__cta--matrix {
  display: inline-block;
}

.pc-share {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: var(--gap-m);
}
.pc-share-btn {
  min-height: 44px;
  padding: 0.6rem 1.1rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-eyebrow);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--black);
  color: var(--cream);
  border: 1.5px solid var(--black);
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.pc-share-btn:hover:not(:disabled) {
  background: var(--coral);
  border-color: var(--coral);
}
.pc-share-btn:disabled {
  background: white;
  color: var(--ink-50);
  border-color: var(--ink-50);
  cursor: not-allowed;
}
.pc-share-btn--secondary {
  background: white;
  color: var(--black);
}
.pc-share-btn--secondary:hover:not(:disabled) {
  background: var(--black);
  color: var(--cream);
  border-color: var(--black);
}
.pc-share-status {
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-meta);
  color: var(--coral);
  margin: 0;
  flex-basis: 100%;
}

.pc-saved {
  background: var(--cream);
  border: 1.5px solid var(--black);
  padding: var(--gap-m);
  margin-bottom: var(--gap-m);
}
.pc-saved-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.pc-saved-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}
.pc-saved-item:last-child {
  border-bottom: 0;
}
.pc-saved-link {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--black);
  text-decoration: none;
  flex: 1;
}
.pc-saved-link:hover {
  color: var(--coral);
}
.pc-saved-remove {
  min-height: 44px;
  min-width: 44px;
  background: transparent;
  border: 1px solid var(--ink-50);
  color: var(--ink-50);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1rem;
  cursor: pointer;
}
.pc-saved-remove:hover {
  background: var(--ink-50);
  color: var(--cream);
}

.pc-h2 {
  font-family: 'Fraunces', serif;
  font-variation-settings: "opsz" 96, "SOFT" 30, "WONK" 1;
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  font-weight: 600;
  margin: 0 0 var(--gap-s);
  color: var(--black);
}

.pc-faq {
  margin-bottom: var(--gap-l);
}
.pc-faq__item {
  border-top: 1px solid var(--black);
  padding: 0.85rem 0;
}
.pc-faq__item:last-child {
  border-bottom: 1px solid var(--black);
}
.pc-faq__item summary {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 1.05rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--black);
  list-style: none;
}
.pc-faq__item summary::-webkit-details-marker {
  display: none;
}
.pc-faq__item summary::before {
  content: "+ ";
  color: var(--coral);
  font-weight: 600;
}
.pc-faq__item[open] summary::before {
  content: "- ";
}
.pc-faq__item p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--black-soft, var(--black));
  margin: 0.6rem 0 0;
}

.pc-cross-link {
  background: var(--cream);
  border-top: 2px solid var(--coral);
  border-bottom: 1px solid var(--black);
  padding: var(--gap-m) 0;
}
.pc-cross-link__intro {
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--t-eyebrow);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--coral);
  margin: 0 0 0.5rem;
}
.pc-cross-link__list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.pc-cross-link__list li {
  padding: 0.4rem 0;
  font-family: 'IBM Plex Sans', sans-serif;
}
.pc-cross-link__list a {
  color: var(--black);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}
.pc-cross-link__list a:hover {
  color: var(--coral);
}