/* ==========================================================================
   Norwood Data LLC — norwooddata.com
   "Precision instrument" — a technical-editorial system for a data firm.
   IBM Plex superfamily · deep teal-ink · bright aqua signal · graph-paper grid.
   ========================================================================== */

:root {
  /* palette ------------------------------------------------------------- */
  --ink:      #0b1f1c;   /* near-black teal — primary text            */
  --ink-2:    #16332e;
  --teal-900: #062d29;
  --teal-800: #08403a;
  --teal-700: #0d5c54;
  --teal-600: #0f766e;   /* primary action                            */
  --teal-500: #14b8a6;
  --signal:   #5eead4;   /* bright aqua — accent on dark              */
  --signal-2: #99f6e4;

  --slate:    #475a58;   /* body copy                                 */
  --muted:    #6b807d;
  --line:     #e2ebe9;
  --line-2:   #d3e0dd;
  --bg:       #ffffff;
  --bg-soft:  #f4f8f7;
  --paper:    #fbfdfc;

  /* type ---------------------------------------------------------------- */
  --serif: "IBM Plex Serif", Georgia, "Times New Roman", serif;
  --sans:  "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --maxw:   1140px;
  --radius: 12px;
  --shadow-sm: 0 1px 2px rgba(6, 40, 37, .05);
  --shadow:    0 2px 6px rgba(6, 40, 37, .05), 0 18px 40px -18px rgba(6, 40, 37, .18);
  --grid-ink:  rgba(15, 118, 110, .07);   /* graph-paper lines on light  */
  --grid-drk:  rgba(94, 234, 212, .10);   /* graph-paper lines on dark   */
}

/* reset ------------------------------------------------------------------ */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  color: var(--slate);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--teal-600); text-decoration: none; }
a:hover { color: var(--teal-700); }

::selection { background: var(--signal); color: var(--teal-900); }

/* type scale ------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--serif);
  color: var(--ink);
  line-height: 1.08;
  letter-spacing: -.02em;
  margin: 0 0 .5em;
  font-weight: 600;
}
h1 { font-size: clamp(2.55rem, 6vw, 4.1rem); }
h2 { font-size: clamp(1.85rem, 3.6vw, 2.7rem); }
h3 { font-size: 1.22rem; letter-spacing: -.01em; }
h4 { font-size: 1.05rem; }
p  { margin: 0 0 1.1rem; }
strong { color: var(--ink); }

/* layout helpers --------------------------------------------------------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.section { padding: 96px 0; position: relative; }
.section--soft { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.center { text-align: center; }
.center .lead, .center > p { margin-left: auto; margin-right: auto; }
.lead { font-size: clamp(1.12rem, 1.6vw, 1.3rem); color: var(--slate); max-width: 60ch; line-height: 1.55; }

/* mono index eyebrow ----------------------------------------------------- */
.eyebrow {
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--teal-600);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 1.1rem;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--teal-500);
  display: inline-block;
}
.eyebrow.on-dark { color: var(--signal); }
.eyebrow.on-dark::before { background: var(--signal); }
.center .eyebrow { justify-content: center; }

/* buttons ---------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--sans); font-weight: 600; font-size: .95rem;
  padding: 13px 24px; border-radius: 8px; border: 1px solid transparent;
  cursor: pointer; transition: transform .18s ease, background .18s, color .18s, border-color .18s, box-shadow .18s;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn--primary { background: var(--teal-700); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--teal-600); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow); }
.btn--ghost { background: #fff; color: var(--teal-700); border-color: var(--line-2); }
.btn--ghost:hover { border-color: var(--teal-500); color: var(--teal-700); transform: translateY(-2px); }
.btn--light { background: var(--signal); color: var(--teal-900); }
.btn--light:hover { background: var(--signal-2); color: var(--teal-900); transform: translateY(-2px); }
.arrow-link {
  font-family: var(--mono); font-size: .82rem; letter-spacing: .04em; font-weight: 500;
  display: inline-flex; align-items: center; gap: 7px;
}
.arrow-link svg { width: 15px; height: 15px; transition: transform .2s; }
.arrow-link:hover svg { transform: translateX(4px); }

/* header ----------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: inline-flex; align-items: center; flex: none; }
.brand-logo { display: block; height: 34px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a:not(.btn) {
  color: var(--slate); font-weight: 500; font-size: .95rem; position: relative; padding: 4px 0;
}
.nav-links a:not(.btn):hover { color: var(--ink); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 2px; background: var(--teal-500); border-radius: 2px;
}
.nav-cta { margin-left: 4px; }
.nav-toggle { display: none; background: #fff; border: 1px solid var(--line-2); border-radius: 8px; width: 44px; height: 44px; place-items: center; color: var(--ink); cursor: pointer; }

/* graph-paper backdrop --------------------------------------------------- */
.grid-bg {
  background-image:
    linear-gradient(var(--grid-ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-ink) 1px, transparent 1px);
  background-size: 34px 34px;
}

/* hero ------------------------------------------------------------------- */
.hero { position: relative; overflow: hidden; padding: 104px 0 92px; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(var(--grid-ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-ink) 1px, transparent 1px);
  background-size: 38px 38px;
  -webkit-mask-image: radial-gradient(120% 90% at 78% -5%, #000 30%, transparent 72%);
          mask-image: radial-gradient(120% 90% at 78% -5%, #000 30%, transparent 72%);
}
.hero::after {
  content: ""; position: absolute; z-index: 0; top: -22%; right: -8%;
  width: 640px; height: 640px; border-radius: 50%;
  background: radial-gradient(circle, rgba(94,234,212,.20), transparent 62%);
  filter: blur(6px); pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
.hero h1 { max-width: 15ch; margin-top: .1em; }
.hero h1 .accent { color: var(--teal-600); font-style: italic; }
.hero .lead { margin-top: 1.1rem; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.hero-note { margin-top: 26px; font-family: var(--mono); font-size: .78rem; letter-spacing: .04em; color: var(--muted); display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.hero-note .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal-500); box-shadow: 0 0 0 4px rgba(20,184,166,.16); }

/* hero instrument panel -------------------------------------------------- */
.panel {
  position: relative; background: linear-gradient(160deg, var(--teal-900), #04211e);
  border: 1px solid rgba(94,234,212,.16); border-radius: 16px; padding: 22px;
  box-shadow: 0 30px 60px -28px rgba(6,40,37,.55); overflow: hidden;
}
.panel::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid-drk) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-drk) 1px, transparent 1px);
  background-size: 26px 26px; opacity: .5;
}
.panel-head { position: relative; display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.panel-head .tag { font-family: var(--mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--signal); }
.panel-head .dots { display: flex; gap: 6px; }
.panel-head .dots i { width: 8px; height: 8px; border-radius: 50%; background: rgba(153,246,228,.35); }
.panel svg.chart { position: relative; width: 100%; height: auto; display: block; }
.panel .chart .plot { fill: none; stroke: var(--signal); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 720; stroke-dashoffset: 720; animation: draw 2.1s .35s ease forwards; }
.panel .chart .area { fill: url(#heroFill); opacity: 0; animation: fadeArea 1.2s 1.4s ease forwards; }
.panel .chart .node { fill: #fff; opacity: 0; animation: pop .4s ease forwards; }
.panel .chart .node:nth-of-type(1){ animation-delay: 1.3s; }
.panel .chart .node:nth-of-type(2){ animation-delay: 1.6s; }
.panel .chart .node:nth-of-type(3){ animation-delay: 1.9s; }
.panel-foot { position: relative; display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin-top: 14px; }
.panel-foot .stat { border: 1px solid rgba(94,234,212,.14); border-radius: 9px; padding: 10px 12px; }
.panel-foot .stat b { font-family: var(--mono); color: #fff; font-size: 1.12rem; display: block; letter-spacing: -.02em; }
.panel-foot .stat span { font-size: .72rem; color: rgba(153,246,228,.75); }

@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fadeArea { to { opacity: .85; } }
@keyframes pop { from { opacity: 0; transform: scale(.4); } to { opacity: 1; transform: scale(1); } }

/* page header (interior) ------------------------------------------------- */
.page-head { position: relative; overflow: hidden; padding: 84px 0 40px; }
.page-head::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(var(--grid-ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-ink) 1px, transparent 1px);
  background-size: 38px 38px;
  -webkit-mask-image: radial-gradient(110% 100% at 85% -30%, #000 25%, transparent 70%);
          mask-image: radial-gradient(110% 100% at 85% -30%, #000 25%, transparent 70%);
}
.page-head .wrap { position: relative; z-index: 1; }
.page-head .lead { margin-top: .6rem; }

/* section heading block -------------------------------------------------- */
.head-block { max-width: 62ch; }
.head-block.center { margin: 0 auto; }

/* cards ------------------------------------------------------------------ */
.grid { display: grid; gap: 22px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px; overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--teal-500), var(--signal));
  transform: scaleX(0); transform-origin: left; transition: transform .28s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--line-2); }
.card:hover::before { transform: scaleX(1); }
.card .ic {
  width: 46px; height: 46px; border-radius: 11px; background: var(--bg-soft);
  border: 1px solid var(--line); color: var(--teal-600);
  display: grid; place-items: center; margin-bottom: 18px;
}
.card .ic svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: .4rem; }
.card p { margin: 0; font-size: .96rem; }
.card .idx { position: absolute; top: 24px; right: 26px; font-family: var(--mono); font-size: .74rem; color: var(--line-2); }

/* dark capabilities band ------------------------------------------------- */
.band { position: relative; overflow: hidden; background: var(--teal-900); color: #d9f3ee; padding: 72px 0; }
.band::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid-drk) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-drk) 1px, transparent 1px);
  background-size: 40px 40px; opacity: .6;
}
.band .wrap { position: relative; z-index: 1; }
.band .metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.band .metric { border-left: 1px solid rgba(94,234,212,.2); padding-left: 20px; }
.band .metric b { font-family: var(--mono); display: block; font-size: 2.1rem; color: #fff; font-weight: 500; letter-spacing: -.03em; line-height: 1; margin-bottom: 10px; white-space: nowrap; }
.band .metric span { font-size: .9rem; color: rgba(153,246,228,.82); }

/* process steps ---------------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; counter-reset: step; }
.step { position: relative; padding-top: 22px; border-top: 2px solid var(--line-2); }
.step .num { font-family: var(--mono); font-size: .78rem; color: var(--teal-600); letter-spacing: .1em; margin-bottom: 12px; }
.step h3 { margin-bottom: .35rem; }
.step p { margin: 0; font-size: .96rem; }

/* split / about ---------------------------------------------------------- */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: start; }
.stack > * + * { margin-top: 16px; }
.feature { border-left: 2px solid var(--teal-500); padding: 2px 0 2px 20px; }
.feature h3 { margin-bottom: .2rem; font-size: 1.1rem; }
.feature p { margin: 0; font-size: .95rem; }

/* FAQ -------------------------------------------------------------------- */
.faq { max-width: 780px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 22px 44px 22px 0; position: relative;
  font-family: var(--serif); font-size: 1.15rem; color: var(--ink); letter-spacing: -.01em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  font-family: var(--mono); font-size: 1.4rem; color: var(--teal-500); transition: transform .2s;
}
.faq details[open] summary::after { content: "\2212"; }
.faq details[open] summary { color: var(--teal-700); }
.faq .answer { padding: 0 44px 24px 0; }
.faq .answer p { margin: 0; font-size: .98rem; }

/* contact ---------------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: start; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 32px; box-shadow: var(--shadow-sm); }
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--mono); font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; font-weight: 500; color: var(--ink); margin-bottom: 8px; }
.field input, .field textarea {
  width: 100%; font-family: var(--sans); font-size: 1rem; color: var(--ink);
  padding: 13px 15px; border: 1px solid var(--line-2); border-radius: 9px; background: var(--paper);
  transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--teal-500); box-shadow: 0 0 0 3px rgba(20,184,166,.16); }
.field textarea { min-height: 150px; resize: vertical; }
.contact-info { display: grid; gap: 8px; }
.info-row { display: flex; gap: 15px; align-items: flex-start; padding: 20px 0; border-bottom: 1px solid var(--line); }
.info-row:last-child { border-bottom: 0; }
.info-row .ic { flex: none; width: 42px; height: 42px; border-radius: 10px; background: var(--bg-soft); border: 1px solid var(--line); color: var(--teal-600); display: grid; place-items: center; }
.info-row .ic svg { width: 19px; height: 19px; }
.info-row .label { font-family: var(--mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 3px; }
.info-row b { display: block; color: var(--ink); font-weight: 600; font-size: 1rem; margin-bottom: 2px; }
.info-row span, .info-row a { color: var(--slate); font-size: .96rem; }
.info-row a:hover { color: var(--teal-700); }

/* CTA -------------------------------------------------------------------- */
.cta {
  position: relative; overflow: hidden;
  background: linear-gradient(150deg, var(--teal-800), var(--teal-900) 70%);
  color: #fff; border-radius: 20px; padding: 64px 48px; text-align: center;
}
.cta::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid-drk) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-drk) 1px, transparent 1px);
  background-size: 34px 34px; opacity: .5;
  -webkit-mask-image: radial-gradient(80% 120% at 50% 0%, #000, transparent 75%);
          mask-image: radial-gradient(80% 120% at 50% 0%, #000, transparent 75%);
}
.cta > * { position: relative; z-index: 1; }
.cta h2 { color: #fff; }
.cta p { color: rgba(217,243,238,.9); max-width: 52ch; margin: 0 auto 28px; }

/* legal / prose ---------------------------------------------------------- */
.prose { max-width: 760px; }
.prose h2 { margin-top: 2em; font-size: 1.5rem; }
.prose h3 { margin-top: 1.6em; }
.prose p, .prose li { color: var(--slate); }
.prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: .5em; }
.prose .updated { font-family: var(--mono); color: var(--muted); font-size: .82rem; letter-spacing: .04em; }
.prose a { text-decoration: underline; text-underline-offset: 2px; }

/* footer ----------------------------------------------------------------- */
.site-footer { background: var(--ink); color: rgba(217,243,238,.72); padding: 72px 0 34px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; }
.site-footer .brand-logo { height: 36px; }
.footer-about { margin-top: 16px; font-size: .92rem; max-width: 34ch; color: rgba(217,243,238,.6); }
.footer-col h4 { font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .14em; color: var(--signal); margin: 4px 0 16px; font-weight: 500; }
.footer-col a { display: block; color: rgba(217,243,238,.72); font-size: .93rem; margin-bottom: 11px; }
.footer-col a:hover { color: #fff; }
.footer-col address { font-style: normal; font-size: .92rem; line-height: 1.7; color: rgba(217,243,238,.6); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(94,234,212,.14);
  color: rgba(217,243,238,.5); font-family: var(--mono); font-size: .78rem; letter-spacing: .03em;
}
.footer-bottom a { color: rgba(217,243,238,.6); }
.footer-bottom a:hover { color: var(--signal); }

/* scroll reveal (progressive enhancement) -------------------------------- */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.is-in { opacity: 1; transform: none; }
.js .reveal-2 { transition-delay: .08s; }
.js .reveal-3 { transition-delay: .16s; }
.js .reveal-4 { transition-delay: .24s; }

/* skip link -------------------------------------------------------------- */
.skip { position: absolute; left: -9999px; top: 0; z-index: 100; background: var(--teal-700); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0; }
.skip:focus { left: 0; color: #fff; }

/* responsive ------------------------------------------------------------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero .panel { max-width: 480px; }
  .band .metrics { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .band .metric b { font-size: 1.55rem; white-space: normal; overflow-wrap: anywhere; }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 720px) {
  .section { padding: 68px 0; }
  .grid--3, .grid--2, .steps, .contact-grid { grid-template-columns: 1fr; }
  .panel-foot { grid-template-columns: repeat(3,1fr); }
  .footer-top { grid-template-columns: 1fr; gap: 30px; }
  .nav-links {
    position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    gap: 0; background: #fff; border-bottom: 1px solid var(--line); padding: 10px 28px 20px;
    display: none; box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-links a:not(.btn) { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav-links a.active::after { display: none; }
  .nav-cta { margin: 14px 0 0; justify-content: center; }
  .nav-toggle { display: grid; }
  .brand-logo, .site-footer .brand-logo { height: 30px; }
}

/* reduced motion --------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
  .panel .chart .plot { stroke-dashoffset: 0; }
  .panel .chart .area, .panel .chart .node { opacity: 1; }
}