.nmr-page{
  --ink:#173540;
  --muted:#526a72;
  --sea:#176c76;
  --line:#d7e5e7;
  max-width:1180px;
  margin:auto;
  padding:10px 22px 96px;
  color:var(--ink);
}
.nmr-page *{box-sizing:border-box}
.nmr-eyebrow{
  margin:0 0 12px;
  color:#176c76;
  font-size:.74rem;
  font-weight:800;
  letter-spacing:.15em;
}
.nmr-intro{
  position:relative;
  overflow:hidden;
  margin:22px 0 30px;
  padding:36px 42px 32px;
  border:1px solid #d8e5e6;
  border-top:4px solid #27858e;
  border-radius:18px;
  background:linear-gradient(112deg,#f5faf9 0%,#eef6f7 67%,#e8f2f2 100%);
}
.nmr-intro::after{
  content:"";
  position:absolute;
  top:-135px;
  right:-90px;
  width:370px;
  height:370px;
  border:1px solid #b7d6d8;
  border-radius:50%;
  box-shadow:0 0 0 46px #dceced44,0 0 0 92px #dceced33;
  pointer-events:none;
}
.nmr-intro h1{
  position:relative;
  z-index:1;
  max-width:28em;
  margin:0 0 14px;
  color:#14343e;
  font-size:clamp(1.9rem,3.1vw,2.75rem);
  line-height:1.25;
  letter-spacing:-.035em;
}
.nmr-lead{
  position:relative;
  z-index:1;
  max-width:48em;
  margin:0;
  color:#415b65;
  font-size:1.01rem;
  line-height:1.85;
}
.nmr-intro-bottom{
  position:relative;
  z-index:1;
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:22px;
  margin-top:27px;
  padding-top:22px;
  border-top:1px solid #cfe0e1;
}
.nmr-intro-facts,.nmr-intro-actions{display:flex;align-items:center;flex-wrap:wrap;gap:11px}
.nmr-intro-facts span{
  display:inline-flex;
  align-items:baseline;
  gap:5px;
  padding:8px 11px;
  border:1px solid #cfdee1;
  border-radius:7px;
  background:#ffffffb8;
  color:#4a6870;
  font-size:.82rem;
  white-space:nowrap;
}
.nmr-intro-facts strong{color:#135967;font-size:1.05rem}
.nmr-intro-actions a{
  display:inline-flex;
  align-items:center;
  gap:13px;
  padding:10px 15px;
  border:1px solid #195e69;
  border-radius:8px;
  background:#165e69;
  color:#fff;
  font-size:.9rem;
  font-weight:700;
  text-decoration:none;
  white-space:nowrap;
}
.nmr-intro-actions a+a{border-color:#c5dbdc;background:#fff;color:#245965}
.nmr-intro-actions a:hover,.nmr-intro-actions a:focus-visible{filter:brightness(.94)}
.nmr-workspace{
  display:grid;
  grid-template-columns:minmax(250px,292px) minmax(0,1fr);
  gap:20px;
  align-items:start;
}
.nmr-controls,.nmr-results{
  min-width:0;
  padding:26px;
  border:1px solid var(--line);
  border-radius:15px;
  background:#fff;
  box-shadow:0 10px 30px #153e4510;
}
.nmr-controls{position:sticky;top:16px;background:#f9fcfc}
.nmr-controls h2,.nmr-results h2{margin:0 0 17px;color:#173540;font-size:1.35rem;line-height:1.35}
.nmr-controls label{display:block;margin:16px 0 7px;font-size:.87rem;font-weight:750}
.nmr-controls input,.nmr-controls select{
  display:block;
  width:100%;
  padding:10px 11px;
  border:1px solid #aac7ca;
  border-radius:8px;
  background:#fff;
  color:var(--ink);
  font:inherit;
}
.nmr-controls input:focus,.nmr-controls select:focus{outline:3px solid #8bd4dc;outline-offset:1px}
.nmr-search{margin-top:23px;padding-top:7px;border-top:1px solid var(--line)}
.nmr-field-help{margin:8px 0 0;color:var(--muted);font-size:.78rem;line-height:1.6}
.nmr-search button{
  margin-top:13px;
  padding:9px 12px;
  border:0;
  border-radius:7px;
  background:#e3eff0;
  color:#145462;
  font:inherit;
  font-size:.87rem;
  font-weight:700;
  cursor:pointer;
}
.nmr-search button:hover{background:#d1e6e8}
.nmr-result-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.nmr-result-head h2{margin:0}
.nmr-result-head span{
  padding:5px 11px;
  border-radius:999px;
  background:#e8f3f2;
  color:#136a70;
  font-size:.86rem;
  font-weight:800;
}
.nmr-note{margin:15px 0 17px;color:var(--muted);font-size:.9rem;line-height:1.7}
.nmr-chart{padding:9px;border:1px solid var(--line);border-radius:10px;background:#f6fafb}
.nmr-chart svg{display:block;width:100%;height:auto}
.nmr-chart-axis,.nmr-chart-tick{stroke:#6e8994;stroke-width:1.5}
.nmr-chart-label{fill:#617b83;font:15px Arial,sans-serif}
.nmr-chart-peak{stroke-width:3;opacity:.82}
.nmr-chart-peak.kind-solvent{stroke:#7354a2;fill:#7354a255}
.nmr-chart-peak.kind-water{stroke:#0b8391;fill:#0b839155;stroke-dasharray:5 3}
.nmr-chart-peak.kind-impurity{stroke:#df8645;fill:#df864555}
.nmr-chart-peak.is-match{stroke-width:5;opacity:1}
.nmr-axis-note{margin:8px 0 18px;color:#59717b;font-size:.82rem}
.nmr-matches{margin-bottom:12px;padding:10px 14px;border-left:4px solid #5d9e70;background:#f0f7ed;line-height:1.7}
.nmr-table-wrap{overflow:auto;max-height:600px;border:1px solid #e1ebec;border-radius:8px}
.nmr-table-wrap table{width:100%;min-width:530px;border-collapse:collapse}
.nmr-table-wrap th{position:sticky;top:0;text-align:left;background:#e9f2f4;font-size:.84rem}
.nmr-table-wrap th,.nmr-table-wrap td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.nmr-table-wrap tbody tr:hover{background:#f7fbfb}
.nmr-table-wrap td:first-child{font-weight:700}
.nmr-table-wrap tr.kind-water td:first-child{color:#087687}
.nmr-table-wrap tr.kind-solvent td:first-child{color:#66439b}
.nmr-empty{padding:20px;color:#7a4d37}
.nmr-example{margin-top:46px;padding:30px 34px;border:1px solid #c8dfe0;border-radius:15px;background:linear-gradient(135deg,#f3faf9,#fff 72%)}
.nmr-example-heading h2{margin:0 0 7px;font-size:clamp(1.45rem,2.8vw,2rem);line-height:1.45}
.nmr-example-heading>p:last-child{margin:0;color:var(--muted);line-height:1.8}
.nmr-example-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:24px 0 0;padding:0;list-style:none;counter-reset:nmr-example}
.nmr-example-steps li{counter-increment:nmr-example;padding:19px 19px 20px;border:1px solid #d8e8e9;border-radius:10px;background:#fff;line-height:1.75}
.nmr-example-steps li::before{content:counter(nmr-example,decimal-leading-zero);display:block;margin-bottom:9px;color:var(--sea);font-size:.74rem;font-weight:800;letter-spacing:.1em}
.nmr-example-steps strong{display:block;margin-bottom:8px;color:var(--ink);font-size:1rem}
.nmr-example-steps span{display:block;color:#405d65;font-size:.88rem}
.nmr-example-note{margin:22px 0 0;padding-top:17px;border-top:1px solid #d5e5e6;color:#405d65;font-size:.89rem;line-height:1.85}
.nmr-example-note a{color:#126975;font-weight:700;text-underline-offset:.2em}
.nmr-reading{margin-top:72px}
.nmr-reading h2,.nmr-next h2{margin:0 0 25px;font-size:clamp(1.65rem,3vw,2.25rem)}
.nmr-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.nmr-cards article{padding:22px;border:1px solid #dbe9ea;border-radius:13px;background:#f2f8f8}
.nmr-cards span{color:#168291;font-size:.78rem;font-weight:900;letter-spacing:.1em}
.nmr-cards h3{margin:10px 0;color:#173540}
.nmr-cards p,.nmr-caveat p,.nmr-next p{line-height:1.85}
.nmr-caveat{margin-top:22px;padding:22px 25px;border-left:4px solid #447f89;background:#f4f8f8}
.nmr-caveat a{color:#146b78}
.nmr-article-link{margin-top:46px;padding:30px 34px;border:1px solid #b9d4d9;border-radius:15px;background:#eef7f8}
.nmr-article-link h2{margin:0 0 12px;color:#173a49;font-size:clamp(1.5rem,2.6vw,2rem)}
.nmr-article-link p:not(.nmr-eyebrow){max-width:55em;line-height:1.8}
.nmr-article-link a{display:inline-block;margin-top:8px;padding:11px 18px;border-radius:8px;background:#116777;color:#fff;font-weight:700;text-decoration:none}
.nmr-next{margin-top:24px;padding:34px;border-radius:15px;background:#103540;color:#fff}
.nmr-next h2{color:#fff}
.nmr-next a{display:inline-block;padding:12px 20px;border-radius:8px;background:#ddf5ed;color:#103540;font-weight:700;text-decoration:none}
.nmr-next p{max-width:60em}
@media(max-width:900px){
  .nmr-intro-bottom{align-items:start;flex-direction:column}
  .nmr-workspace{grid-template-columns:minmax(0,1fr)}
  .nmr-controls{position:static}
}
@media(max-width:650px){
  .nmr-page{padding:5px 15px 60px}
  .nmr-intro{margin:12px 0 20px;padding:25px 21px 24px}
  .nmr-intro::after{top:-195px;right:-210px}
  .nmr-intro h1{font-size:clamp(1.65rem,7vw,2.1rem);line-height:1.32}
  .nmr-lead{font-size:.96rem;line-height:1.75}
  .nmr-intro-bottom{margin-top:20px;padding-top:17px}
  .nmr-intro-facts{display:none}
  .nmr-intro-actions{width:100%}
  .nmr-intro-actions a{padding:9px 11px;font-size:.8rem;gap:8px}
  .nmr-intro-actions a+a{padding:9px 0;border:0;background:transparent}
  .nmr-controls,.nmr-results{padding:18px}
  .nmr-result-head{align-items:start;flex-direction:column}
  .nmr-cards{grid-template-columns:1fr}
  .nmr-example{padding:24px 21px}
  .nmr-example-steps{grid-template-columns:1fr}
  .nmr-article-link,.nmr-next{padding:24px 21px}
}