/* Peptide Tutorials — tools layer
   Loads AFTER ../../homepage/styles.css · indigo / coral / cream */

.article-hero {
  background:
    radial-gradient(ellipse 60% 90% at 100% 0%, rgba(240, 106, 88, 0.10), transparent 55%),
    linear-gradient(165deg, var(--indigo-50) 0%, var(--cream) 70%);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0 1.75rem;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0 0 1rem;
  padding: 0;
  font-size: 0.8125rem;
  color: var(--muted);
}
.breadcrumb li + li::before { content: "›"; margin-right: 0.35rem; color: var(--faint); }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--coral-600); text-decoration: underline; }

.article-kicker {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--coral-600);
  margin: 0 0 0.6rem;
}
.article-kicker .pill {
  color: var(--indigo-700);
  background: var(--white);
  border: 1px solid var(--indigo-100);
  border-radius: var(--radius-pill);
  padding: 0.1rem 0.55rem;
  letter-spacing: 0.04em;
}

.article-hero h1 {
  font-size: clamp(2rem, 4.2vw, 2.7rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin: 0 0 0.75rem;
  max-width: 44rem;
}
.article-dek {
  font-size: 1.12rem;
  color: var(--muted);
  max-width: 44rem;
  margin: 0 0 1.1rem;
}
.byline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.byline strong { color: var(--ink-2); font-weight: 600; }
.byline .placeholder { color: var(--coral-700); font-style: italic; }

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 17rem;
  gap: 2.5rem;
  padding: 2rem 0 3rem;
  align-items: start;
}
.article-body { max-width: 46rem; }
.article-body h2 {
  font-size: clamp(1.35rem, 2.4vw, 1.6rem);
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--ink);
  margin: 2.5rem 0 0.75rem;
  scroll-margin-top: 5rem;
}
.article-body h3 {
  font-size: 1.12rem;
  color: var(--ink);
  margin: 1.6rem 0 0.4rem;
}
.article-body p { margin: 0 0 1rem; }
.article-body ul, .article-body ol { padding-left: 1.3rem; margin: 0 0 1rem; }
.article-body li { margin-bottom: 0.35rem; }

.entity-decl {
  font-size: 0.9rem;
  color: var(--ink-2);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  margin: 0 0 1.25rem;
}
.entity-decl .aliases { display: block; color: var(--muted); margin-top: 0.25rem; font-size: 0.85rem; }

.tldr {
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 4px solid var(--indigo-700);
  border-radius: var(--radius-sm);
  padding: 1rem 1.15rem;
  margin: 0 0 1.5rem;
}
.tldr h2 { margin: 0 0 0.6rem; font-size: 0.95rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--indigo-800); }
.tldr ul { margin: 0; padding-left: 1.15rem; }
.tldr li { margin-bottom: 0.4rem; }

.questions-toc {
  background: var(--indigo-50);
  border: 1px solid var(--indigo-100);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  margin: 0 0 1.75rem;
}
.questions-toc h2 { margin: 0 0 0.65rem; font-size: 1.05rem; color: var(--indigo-900); }
.questions-toc ol { margin: 0; padding-left: 1.25rem; }
.questions-toc a { text-decoration: none; font-weight: 500; }
.questions-toc a:hover { text-decoration: underline; }

.callout {
  border-radius: var(--radius-sm);
  padding: 1rem 1.15rem;
  margin: 0 0 1.25rem;
  border: 1px solid var(--border);
  background: var(--white);
}
.callout.warn {
  background: var(--warn-bg);
  border-color: var(--warn-border);
  color: var(--warn-ink);
}
.callout.danger {
  background: var(--coral-50);
  border-color: #f5c4bc;
  color: #7a2e24;
}
.callout.myth {
  background: var(--indigo-50);
  border-color: var(--indigo-100);
}
.callout strong.label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.article-aside { position: sticky; top: 1.25rem; }
.toc {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}
.toc h2 { margin: 0 0 0.65rem; font-size: 0.8rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); }
.toc ol { margin: 0; padding-left: 1.1rem; font-size: 0.88rem; }
.toc a { text-decoration: none; color: var(--ink-2); }
.toc a:hover { color: var(--coral-600); }

.aside-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  font-size: 0.88rem;
}
.aside-card h2 { margin: 0 0 0.5rem; font-size: 0.8rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); }
.aside-card ul { margin: 0; padding-left: 1.1rem; }
.aside-card a { text-decoration: none; font-weight: 500; }

.faq details {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  margin-bottom: 0.55rem;
}
.faq summary { font-weight: 600; color: var(--ink); cursor: pointer; }
.faq details p { margin: 0.65rem 0 0; color: var(--ink-2); }

.sources { margin-top: 2rem; padding-top: 1.25rem; border-top: 1px solid var(--border); }
.sources ol { font-size: 0.9rem; color: var(--muted); }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 0 0 1.25rem;
  background: var(--white);
}
table.data th, table.data td {
  border: 1px solid var(--border);
  padding: 0.55rem 0.7rem;
  text-align: left;
  vertical-align: top;
}
table.data th { background: var(--indigo-50); color: var(--indigo-900); font-weight: 600; }

/* ——— Tool chrome ——— */
.tool-shell {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 1.35rem 1.4rem 1.5rem;
  margin: 0 0 1.75rem;
}
.tool-shell .tool-title {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.tool-shell .tool-sub {
  margin: 0 0 1.15rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.tool-banner {
  background: var(--coral-50);
  border: 2px solid #f0b0a6;
  border-radius: var(--radius-sm);
  padding: 0.9rem 1rem;
  margin: 0 0 1.25rem;
  color: #6e2a22;
  font-size: 0.92rem;
}
.tool-banner strong { display: block; margin-bottom: 0.25rem; font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase; }

.tool-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 640px) {
  .tool-grid { grid-template-columns: 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .article-aside { position: static; }
}

.field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.35rem;
}
.field .hint {
  display: block;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--muted);
  margin-top: 0.25rem;
}
.field input, .field select {
  width: 100%;
  font: inherit;
  font-size: 1.05rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--cream);
  color: var(--ink);
}
.field input:focus, .field select:focus, .search-box input:focus {
  outline: none;
  border-color: var(--indigo-700);
  box-shadow: var(--focus);
  background: var(--white);
}

.results {
  margin-top: 1.15rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}
@media (max-width: 720px) { .results { grid-template-columns: 1fr; } }

.result-card {
  background: var(--indigo-50);
  border: 1px solid var(--indigo-100);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1rem;
}
.result-card .label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--indigo-700);
  margin: 0 0 0.35rem;
}
.result-card .value {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin: 0;
  font-variant-numeric: tabular-nums;
}
.result-card .unit { font-size: 0.85rem; font-weight: 500; color: var(--muted); }
.result-card.accent {
  background: linear-gradient(145deg, var(--indigo-900), var(--indigo-800));
  border-color: transparent;
  color: var(--white);
}
.result-card.accent .label { color: rgba(255,255,255,0.75); }
.result-card.accent .value { color: var(--white); }
.result-card.accent .unit { color: rgba(255,255,255,0.7); }

.formula-box {
  margin-top: 1rem;
  font-size: 0.88rem;
  color: var(--muted);
  background: var(--cream-2);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}
.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--ink-2);
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
}
.btn:hover { border-color: var(--indigo-700); color: var(--indigo-800); }
.btn-primary {
  background: var(--indigo-800);
  border-color: var(--indigo-800);
  color: var(--white);
}
.btn-primary:hover { background: var(--indigo-900); color: var(--white); }

/* WADA search */
.search-box { margin-bottom: 1rem; }
.search-box input {
  width: 100%;
  font: inherit;
  font-size: 1.05rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--cream);
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 1rem;
}
.chip {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--ink-2);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
}
.chip[aria-pressed="true"] {
  background: var(--indigo-800);
  border-color: var(--indigo-800);
  color: var(--white);
}

.status-list { display: grid; gap: 0.75rem; }
.status-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  padding: 1rem 1.1rem;
}
.status-card header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
  align-items: baseline;
  margin-bottom: 0.45rem;
}
.status-card h3 {
  margin: 0;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
}
.badge.prohibited { background: var(--coral-50); color: #8a3228; border-color: #f0b0a6; }
.badge.monitor { background: var(--warn-bg); color: var(--warn-ink); border-color: var(--warn-border); }
.badge.unclear { background: var(--indigo-50); color: var(--indigo-800); border-color: var(--indigo-100); }
.badge.incomp { background: #eef2ff; color: #3730a3; border-color: #c7d2fe; }
.badge.notlisted { background: #ecfdf5; color: #065f46; border-color: #a7f3d0; }

.status-meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 0.55rem;
}
.status-note {
  font-size: 0.92rem;
  margin: 0 0 0.65rem;
  color: var(--ink-2);
}
.verify-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.1rem;
  align-items: center;
  font-size: 0.82rem;
}
.verify-row a.verify {
  font-weight: 700;
  color: var(--coral-700);
  text-decoration: none;
  border-bottom: 1px dashed var(--coral-600);
}
.verify-row a.verify:hover { color: var(--coral-600); }
.muted-date { color: var(--faint); }

.empty-state {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: var(--cream-2);
}

.sr-live {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
}