/* ==========================================================================
   Lodestone Data — site.css
   Sans-first, monospace on every identifier. Copper stays scarce.
   Deliberately not the NWISI system: different register, different company.
   ========================================================================== */

:root {
  --iron:        #22262B;
  --iron-soft:   #2C3138;
  --graphite:    #3A4048;
  --slate:       #6B7480;
  --slate-light: #98A0AA;

  --copper:      #B4682E;
  --copper-lt:   #D08A50;
  --copper-pale: #FBF2EA;

  --paper:       #F7F8F9;
  --paper-alt:   #EDEFF2;
  --white:       #FFFFFF;
  --line:        #DFE3E8;
  --line-strong: #C6CCD4;

  /* semantic — a blocked search must not look like a server error */
  --ok:      #2E7D5B;
  --neutral: #6B7480;
  --warn:    #B4682E;
  --blocked: #B23B3B;

  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  --s--1: clamp(0.82rem, 0.79rem + 0.15vw, 0.89rem);
  --s-0:  clamp(1rem, 0.97rem + 0.16vw, 1.06rem);
  --s-1:  clamp(1.12rem, 1.05rem + 0.34vw, 1.3rem);
  --s-2:  clamp(1.35rem, 1.2rem + 0.72vw, 1.8rem);
  --s-3:  clamp(1.7rem, 1.42rem + 1.3vw, 2.45rem);
  --s-4:  clamp(2rem, 1.5rem + 2.4vw, 3.3rem);

  --container: 1140px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-y: clamp(3.25rem, 6.5vw, 6rem);

  --r: 4px;
  --r-lg: 8px;
  --shadow: 0 10px 30px -14px rgba(34, 38, 43, 0.28);
  --focus: 0 0 0 3px var(--paper), 0 0 0 5px var(--copper);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--iron);
  font-family: var(--sans);
  font-size: var(--s-0);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--iron);
  margin: 0 0 0.5em;
  text-wrap: balance;
}
h1 { font-size: var(--s-4); }
h2 { font-size: var(--s-3); }
h3 { font-size: var(--s-1); line-height: 1.3; letter-spacing: -0.01em; }

p { margin: 0 0 1.1em; max-width: 68ch; text-wrap: pretty; }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0 0 1.1em; padding-left: 1.2em; }
li { margin-bottom: 0.35em; }
strong { font-weight: 650; }

code, kbd, .mono { font-family: var(--mono); font-size: 0.92em; }

::selection { background: var(--copper); color: var(--white); }
:focus-visible { outline: none; box-shadow: var(--focus); border-radius: 3px; }

.skip-link { position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--iron); color: var(--white); padding: 0.75rem 1.25rem; text-decoration: none; }
.skip-link:focus { left: 0; }

/* Layout ---------------------------------------------------------------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.container--mid { max-width: 920px; }
.container--narrow { max-width: 740px; }

.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(2.25rem, 4.5vw, 3.5rem); }
.section--alt { background: var(--paper-alt); }
.section--dark { background: var(--iron); color: #C3C9D1; }
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--white); }
.section + .section:not(.section--alt):not(.section--dark) { border-top: 1px solid var(--line); }

.stack > * + * { margin-top: 1.1em; }
.prose-grid { display: grid; grid-template-columns: 1fr 320px; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.prose-grid > *, .grid > *, .hero__grid > *, .cta-band__inner > *, .stack { min-width: 0; }
@media (max-width: 880px) { .prose-grid { grid-template-columns: 1fr; } }

.grid { display: grid; gap: clamp(1.1rem, 2.2vw, 1.6rem); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; } }

/* Type helpers ---------------------------------------------------------- */
.eyebrow {
  display: block; font-family: var(--mono); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--copper); margin: 0 0 1rem;
}
.section--dark .eyebrow { color: var(--copper-lt); }
.lede { font-size: var(--s-1); line-height: 1.55; color: var(--slate); max-width: 62ch; }
.section--dark .lede { color: #A8B0BA; }
.section-head { max-width: 66ch; margin-bottom: clamp(1.75rem, 3.5vw, 2.75rem); }
.muted { color: var(--slate); }
.small { font-size: var(--s--1); }
.mt-2 { margin-top: 2rem; } .mt-3 { margin-top: 3rem; } .mb-0 { margin-bottom: 0; }

.todo { background:#FFF3CD; border-bottom:1px dashed #B7912F; color:#6B531A; padding:0 0.15em; }

/* Buttons --------------------------------------------------------------- */
a { color: var(--copper); text-underline-offset: 0.16em; }
a:hover { color: var(--copper-lt); }

.btn {
  display: inline-flex; align-items: center; gap: 0.5em;
  font-family: var(--sans); font-size: var(--s--1); font-weight: 600; line-height: 1;
  padding: 0.9rem 1.5rem; border: 1px solid transparent; border-radius: var(--r);
  text-decoration: none; cursor: pointer;
  transition: background-color .15s, border-color .15s, color .15s, transform .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn--sm { padding: 0.65rem 1.1rem; }
.btn--primary { background: var(--copper); color: var(--white); }
.btn--primary:hover { background: var(--copper-lt); color: var(--white); }
.btn--ghost { background: transparent; color: var(--iron); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--iron); color: var(--iron); }
.btn--onDark { background: transparent; color: var(--white); border-color: rgba(255,255,255,.3); }
.btn--onDark:hover { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.55); color: var(--white); }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }

.arrow-link { display: inline-flex; align-items: center; gap: 0.35em;
  font-size: var(--s--1); font-weight: 600; text-decoration: none; }
.arrow-link::after { content: "\2192"; transition: transform .15s; }
.arrow-link:hover::after { transform: translateX(3px); }

/* Header ---------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247,248,249,.94); backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 0.65rem; text-decoration: none; flex-shrink: 0; }
.brand__mark { color: var(--iron); flex-shrink: 0; }
.brand__text { display: flex; flex-direction: column; line-height: 1.12; }
.brand__name { font-size: 1.06rem; font-weight: 600; letter-spacing: -0.02em; color: var(--iron); }
.brand__name em { font-style: normal; font-weight: 300; color: var(--slate); }
.brand__sub { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--slate-light); margin-top: 0.15rem; }

.nav { display: flex; align-items: center; gap: 1.6rem; }
.nav__list { display: flex; align-items: center; gap: 1.5rem; list-style: none; margin: 0; padding: 0; }
.nav__list li { margin: 0; }
.nav__link { font-size: 0.9rem; font-weight: 500; color: var(--iron); text-decoration: none;
  padding-block: 0.3rem; border-bottom: 2px solid transparent; white-space: nowrap; }
.nav__link:hover { color: var(--copper); }
.nav__link.is-active { color: var(--copper); border-bottom-color: var(--copper); }

.nav-toggle { display: none; background: none; border: 1px solid var(--line-strong);
  border-radius: var(--r); width: 44px; height: 40px; cursor: pointer; align-items: center; justify-content: center; }
.nav-toggle__bars, .nav-toggle__bars::before, .nav-toggle__bars::after {
  display: block; width: 18px; height: 1.5px; background: var(--iron); position: relative; }
.nav-toggle__bars::before, .nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bars::before { top: -6px; } .nav-toggle__bars::after { top: 6px; }

@media (max-width: 940px) {
  .nav-toggle { display: inline-flex; }
  .nav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch;
    gap: 0; background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--gutter) 1.4rem; box-shadow: var(--shadow); display: none; }
  .nav.is-open { display: flex; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__link { display: flex; align-items: center; min-height: 44px; border-bottom: 1px solid var(--line); }
  .nav__cta { margin-top: 1.1rem; justify-content: center; }
}

/* Hero ------------------------------------------------------------------ */
.hero { background: linear-gradient(180deg, var(--white), var(--paper)); border-bottom: 1px solid var(--line);
  padding-block: clamp(3rem, 6.5vw, 5.5rem) clamp(2.5rem, 5vw, 4.5rem); }
.hero__grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
@media (max-width: 880px) { .hero__grid { grid-template-columns: 1fr; } }
.hero h1 { margin-bottom: 0.45em; }
.hero__lede { font-size: var(--s-1); color: var(--slate); line-height: 1.55; max-width: 52ch; }
.hero .btn-row { margin-top: 1.9rem; }

/* Terminal-style demo panel — the house signature */
.term {
  background: var(--iron); border-radius: var(--r-lg); overflow: hidden;
  box-shadow: var(--shadow); font-family: var(--mono); font-size: 0.8rem; line-height: 1.75;
}
.term__bar { background: var(--iron-soft); padding: 0.6rem 1rem; display: flex; gap: 0.4rem; align-items: center;
  border-bottom: 1px solid rgba(255,255,255,.07); }
.term__dot { width: 9px; height: 9px; border-radius: 50%; background: #4A5058; }
.term__title { margin-left: 0.6rem; color: var(--slate-light); font-size: 0.72rem; letter-spacing: 0.05em; }
.term__body { padding: 1.1rem 1.2rem; color: #C3C9D1; overflow-x: auto; }
.term__body .k { color: var(--copper-lt); }
.term__body .s { color: #8FBFA5; }
.term__body .c { color: #6B7480; }
.term__body .ok { color: #6FC29A; }
.term__body .no { color: #E08585; }
.term__body pre { margin: 0; font: inherit; }

/* Cards ----------------------------------------------------------------- */
.card { background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: clamp(1.35rem, 2.4vw, 1.85rem); display: flex; flex-direction: column;
  transition: border-color .18s, box-shadow .18s, transform .18s; }
.card:hover { border-color: var(--line-strong); box-shadow: var(--shadow); transform: translateY(-2px); }
.card h3 { margin-bottom: 0.5rem; }
.card p { font-size: 0.95rem; color: var(--slate); }
.card--flag { border-top: 3px solid var(--copper); }
.card__kicker { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--copper); margin-bottom: 0.6rem; display: block; }
.card .arrow-link { margin-top: auto; padding-top: 1.1rem; }
.card__price { font-size: var(--s-2); font-weight: 600; letter-spacing: -0.03em; color: var(--iron); }
.card__price small { font-family: var(--mono); font-size: 0.62rem; font-weight: 400; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--slate-light); margin-left: 0.4rem; }

/* Spec list ------------------------------------------------------------- */
.spec { list-style: none; margin: 1.1rem 0 0; padding: 1.1rem 0 0; border-top: 1px solid var(--line); font-size: 0.85rem; }
.spec li { display: block; padding: 0.35rem 0; margin: 0; }
.spec__k { display: block; font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--slate-light); margin-bottom: 0.1rem; }

/* Checklist ------------------------------------------------------------- */
.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { position: relative; padding-left: 1.6rem; margin-bottom: 0.6rem; }
.checklist li::before { content: ""; position: absolute; left: 0; top: 0.52em; width: 0.62rem; height: 0.34rem;
  border-left: 2px solid var(--copper); border-bottom: 2px solid var(--copper); transform: rotate(-45deg); }
.section--dark .checklist li::before { border-color: var(--copper-lt); }
.checklist--2 { columns: 2; column-gap: 2.25rem; }
.checklist--2 li { break-inside: avoid; }
@media (max-width: 620px) { .checklist--2 { columns: 1; } }

/* Steps ----------------------------------------------------------------- */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: clamp(1.1rem, 2.4vw, 1.9rem); }
.steps--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .steps--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps--4 { grid-template-columns: 1fr; } }
.steps li { margin: 0; padding-top: 1rem; border-top: 2px solid var(--line-strong); }
.steps__num { display: block; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.14em;
  color: var(--copper); margin-bottom: 0.55rem; }
.steps h3 { font-size: var(--s-0); margin-bottom: 0.35rem; }
.steps p { font-size: 0.9rem; color: var(--slate); }

/* Callout --------------------------------------------------------------- */
.callout { background: var(--copper-pale); border-left: 3px solid var(--copper);
  border-radius: 0 var(--r) var(--r) 0; padding: clamp(1.1rem, 2.2vw, 1.6rem); font-size: 0.95rem; }
.callout h3 { font-size: var(--s-0); margin-bottom: 0.35rem; }
.callout p { max-width: none; }
.callout--blocked { background: #FDF1F1; border-left-color: var(--blocked); }

/* Tables ---------------------------------------------------------------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; min-width: 0; max-width: 100%; }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; min-width: 540px; }
th, td { text-align: left; padding: 0.8rem 1rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--slate-light); border-bottom: 2px solid var(--line-strong); white-space: nowrap; }
td.num { font-family: var(--mono); }

/* Status pills ---------------------------------------------------------- */
.pill { display: inline-flex; align-items: center; gap: 0.35em; font-family: var(--mono);
  font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.2rem 0.5rem; border-radius: 3px; }
.pill--ok { background: #E7F3ED; color: var(--ok); }
.pill--no { background: var(--paper-alt); color: var(--neutral); }
.pill--blocked { background: #FBECEC; color: var(--blocked); }

/* CTA band -------------------------------------------------------------- */
.cta-band { background: var(--iron); color: #B6BDC6; }
.cta-band h2 { color: var(--white); max-width: 22ch; }
.cta-band p { color: #A2AAB4; }
.cta-band__inner { display: grid; grid-template-columns: 1fr auto; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
@media (max-width: 780px) { .cta-band__inner { grid-template-columns: 1fr; } }

/* Page head ------------------------------------------------------------- */
.page-head { background: var(--iron); color: #B6BDC6; padding-block: clamp(2.75rem, 5.5vw, 4.25rem); }
.page-head h1 { color: var(--white); }
.page-head .lede { color: #A2AAB4; }
.breadcrumb { font-family: var(--mono); font-size: 0.72rem; margin-bottom: 1.1rem; color: #7C848E; }
.breadcrumb a { color: var(--copper-lt); text-decoration: none; }
.breadcrumb span { margin-inline: 0.45rem; opacity: 0.5; }

/* Footer ---------------------------------------------------------------- */
.site-footer { background: var(--iron); color: #949CA6; padding-block: clamp(2.75rem, 5.5vw, 4rem) 1.75rem; font-size: 0.89rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: clamp(1.75rem, 4vw, 3rem);
  padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255,255,255,.1); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand__name { font-size: 1rem; font-weight: 600; color: var(--white); margin: 0.75rem 0 0.5rem; letter-spacing: -0.02em; }
.footer-brand__meta { font-size: 0.82rem; line-height: 1.7; color: #7C848E; margin: 0; }
.footer-col__title { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--copper-lt); margin: 0 0 0.9rem; font-weight: 500; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a { color: #AEB6C0; text-decoration: none; }
.footer-col a:hover { color: var(--white); text-decoration: underline; }
.footer-legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem;
  padding-top: 1.5rem; font-size: 0.8rem; color: #767E88; }
.footer-legal p { margin: 0; }
.footer-legal__links { display: flex; gap: 1.4rem; }
.footer-legal a { color: #767E88; text-decoration: none; }
.footer-disclaimer { margin-top: 1.3rem; font-size: 0.76rem; line-height: 1.65; color: #6A727C; max-width: 92ch; }
.footer-disclaimer strong { color: #949CA6; }

/* Touch targets --------------------------------------------------------- */
@media (max-width: 900px) {
  .btn { min-height: 44px; padding-block: 0.8rem; }
  .btn--sm { min-height: 44px; }
  .btn-row .btn { flex: 1 1 auto; justify-content: center; }
  .arrow-link { min-height: 44px; }
  .footer-col li { margin-bottom: 0.2rem; }
  .footer-col li a, .footer-legal a { display: inline-block; padding-block: 0.5rem; }
}

.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .btn:hover, .card:hover { transform: none; }
}
@media print { .site-header, .site-footer, .cta-band, .nav-toggle { display: none; } body { background: #fff; } }