/* =====================================================================
   PI Innovations, LLC — design system
   Graphite-dominant, copper as a single accent, warm paper backgrounds.
   Type: Space Grotesk (display) · IBM Plex Sans (body) · IBM Plex Mono (labels)
   ===================================================================== */

:root {
  --graphite: #232323;
  --ink-700:  #3A3835;
  --slate-500:#6B6864;
  --slate-400:#8A857D;
  --line-300: #C9C1B4;
  --copper:   #B8703F;
  --copper-deep:#8C4E28;
  --paper:    #F5EFE6;
  --card:     #FBF8F2;
  --hairline: rgba(35,35,35,0.09);
  --hairline-strong: rgba(35,35,35,0.14);

  --maxw: 1120px;
  --maxw-legal: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; }

body {
  background: var(--paper);
  font-family: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  color: var(--graphite);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img, svg { display: block; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: 40px;
  padding-right: 40px;
}

/* ---- links: copper, used sparingly ---- */
.link { color: var(--copper); transition: color .15s ease; }
.link:hover { color: var(--copper-deep); }

/* ---- buttons ---- */
.btn {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  padding: 13px 24px;
  border-radius: 9px;
  transition: background .15s ease, border-color .15s ease;
}
.btn-dark { background: var(--graphite); color: var(--paper); }
.btn-dark:hover { background: var(--ink-700); }
.btn-ghost { border: 1px solid rgba(35,35,35,0.22); color: var(--graphite); }
.btn-ghost:hover { border-color: rgba(35,35,35,0.42); background: rgba(35,35,35,0.03); }

.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate-400);
}

/* =====================================================================
   HEADER
   ===================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(245,239,230,0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.brand { display: flex; align-items: center; gap: 11px; }
.brand-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--graphite);
}
.site-nav { display: flex; align-items: center; gap: 32px; }
.site-nav a { font-size: 14px; color: #4A4844; transition: color .15s ease; }
.site-nav a:hover { color: var(--graphite); }
.header-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate-400);
}

/* =====================================================================
   HERO
   ===================================================================== */
.hero { position: relative; overflow: hidden; }
.hero .wrap { padding-top: 96px; padding-bottom: 80px; position: relative; }
.hero-motif {
  position: absolute;
  right: -120px;
  top: -60px;
  opacity: 0.05;
  pointer-events: none;
}
.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 60px;
  line-height: 1.04;
  letter-spacing: -0.025em;
  margin: 22px 0 24px;
  max-width: 760px;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.6;
  color: #4A4844;
  max-width: 560px;
  margin: 0 0 36px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* =====================================================================
   GENERIC SECTION
   ===================================================================== */
.section { border-top: 1px solid var(--hairline); }
.section .wrap { padding-top: 72px; padding-bottom: 80px; }
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}
.section-head h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 32px;
  letter-spacing: -0.015em;
  margin: 0;
}
.section-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate-400);
}

/* =====================================================================
   PRODUCT GRID
   ===================================================================== */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.product-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--card);
  border: 1px solid rgba(35,35,35,0.10);
  border-radius: 16px;
  padding: 26px 26px 24px;
  min-height: 186px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.product-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -24px rgba(35,35,35,0.45);
  border-color: rgba(184,112,63,0.5);
}
.product-card .top { display: flex; align-items: center; justify-content: space-between; }
.product-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--graphite);
}
.dot { width: 9px; height: 9px; border-radius: 2px; background: var(--graphite); }
.dot.copper { background: var(--copper); }
.dot.soon { background: transparent; border: 1.5px solid var(--line-300); }

/* not-yet-live product: same card, but inert (no link, no hover lift) */
.product-card.is-soon { cursor: default; }
.product-card.is-soon:hover { transform: none; box-shadow: none; border-color: rgba(35,35,35,0.10); }
.product-soon {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--slate-400);
}
.product-desc { font-size: 14.5px; line-height: 1.55; color: var(--slate-500); margin: 0; flex: 1; }
.product-visit {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--copper);
  transition: color .15s ease;
}
.product-card:hover .product-visit { color: var(--copper-deep); }

/* =====================================================================
   ABOUT BAND (dark)
   ===================================================================== */
.band-dark { background: var(--graphite); }
.about .wrap {
  padding-top: 84px;
  padding-bottom: 84px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 18px 0 20px;
}
.about p { font-size: 16px; line-height: 1.68; color: var(--line-300); margin: 0 0 16px; max-width: 520px; }
.about p:last-child { margin-bottom: 0; }
.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(245,239,230,0.12);
  border-radius: 14px;
  overflow: hidden;
}
.stat { background: var(--graphite); padding: 26px 24px; }
.stat .num { font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 34px; color: var(--paper); }
.stat .num.copper { color: var(--copper); }
.stat .label { font-size: 13px; color: #9A948A; margin-top: 4px; }

/* =====================================================================
   PRIVACY TEASER
   ===================================================================== */
.teaser .wrap {
  padding-top: 64px;
  padding-bottom: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.teaser h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 26px;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
}
.teaser p { font-size: 15.5px; line-height: 1.6; color: var(--slate-500); margin: 0; max-width: 560px; }

/* =====================================================================
   FOOTER (full — homepage & general pages)
   ===================================================================== */
.site-footer { background: var(--graphite); }
.site-footer .wrap { padding-top: 56px; padding-bottom: 40px; }
.footer-top { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 40px; }
.footer-brand { max-width: 320px; }
.footer-brand .row { display: flex; align-items: center; gap: 11px; margin-bottom: 16px; }
.footer-brand .brand-name { font-size: 17px; color: var(--paper); }
.footer-brand p { font-size: 13.5px; line-height: 1.6; color: var(--slate-400); margin: 0; }
.footer-contact { font-size: 12.5px; line-height: 1.7; color: var(--slate-400); margin: 14px 0 0; }
.footer-contact a { color: var(--line-300); transition: color .15s ease; }
.footer-contact a:hover { color: var(--paper); }
.footer-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-col { display: flex; flex-direction: column; gap: 11px; }
.footer-col .col-head {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate-500);
  margin-bottom: 2px;
}
.footer-col a { font-size: 14px; color: var(--line-300); transition: color .15s ease; }
.footer-col a:hover { color: var(--paper); }
.footer-bottom {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid rgba(245,239,230,0.10);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}
.footer-bottom > span { font-size: 13px; color: var(--slate-400); }
.credit { display: inline-flex; align-items: center; gap: 7px; white-space: nowrap; font-size: 13px; color: var(--slate-400); }
.credit strong { color: var(--line-300); font-weight: 500; }

/* =====================================================================
   LEGAL PAGES (privacy, terms)
   ===================================================================== */
.legal-masthead { max-width: var(--maxw-legal); margin: 0 auto; padding: 64px 40px 0; }
.legal-eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper);
}
.legal-masthead h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 46px;
  line-height: 1.06;
  letter-spacing: -0.025em;
  margin: 16px 0 18px;
}
.legal-lede { font-size: 17px; line-height: 1.6; color: #4A4844; max-width: 620px; margin: 0 0 22px; }
.legal-dates {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  padding: 14px 0 0;
  border-top: 1px solid var(--hairline-strong);
}
.legal-dates .date { font-size: 13.5px; color: var(--slate-500); }
.legal-dates .sep { width: 1px; height: 18px; background: var(--hairline-strong); }

.legal-body {
  max-width: var(--maxw-legal);
  margin: 0 auto;
  padding: 44px 40px 0;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 56px;
  align-items: start;
}
.legal-body--notoc { grid-template-columns: 1fr; }

.toc {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding-top: 6px;
}
.toc .toc-head {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate-400);
  padding-left: 12px;
  margin-bottom: 4px;
}
.toc a {
  font-size: 13.5px;
  color: var(--slate-500);
  border-left: 2px solid transparent;
  padding-left: 12px;
  transition: color .15s ease, border-color .15s ease;
}
.toc a:hover { color: var(--graphite); border-left-color: var(--copper); }

.prose { max-width: 660px; padding-bottom: 80px; }
.prose > :first-child { margin-top: 0; }
.prose h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--graphite);
  margin: 44px 0 14px;
  scroll-margin-top: 90px;
}
.prose h3 { font-family: 'IBM Plex Sans', sans-serif; font-weight: 600; font-size: 16px; color: var(--graphite); margin: 24px 0 8px; }
.prose p { font-size: 15.5px; line-height: 1.72; color: var(--ink-700); margin: 0 0 14px; }
.prose ul, .prose ol { margin: 0 0 14px; padding-left: 22px; }
.prose li { font-size: 15.5px; line-height: 1.7; color: var(--ink-700); margin: 0 0 7px; }
.prose strong { font-weight: 600; color: var(--graphite); }
.prose a { color: var(--copper); transition: color .15s ease; }
.prose a:hover { color: var(--copper-deep); }
/* fill-in placeholder marker for legal drafts (e.g. governing-law state) */
.prose .ph {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.9em;
  color: var(--copper-deep);
  background: rgba(184,112,63,0.10);
  padding: 1px 7px;
  border-radius: 5px;
  border-bottom: 1px dashed rgba(184,112,63,0.6);
  white-space: nowrap;
}

.contact-card {
  margin-top: 6px;
  padding: 22px 24px;
  background: var(--card);
  border: 1px solid rgba(35,35,35,0.10);
  border-radius: 14px;
}
.contact-card .row { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.contact-card .name { font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 15px; color: var(--graphite); }
.contact-card p { margin: 0; font-size: 14.5px; line-height: 1.7; color: var(--slate-500); }
.seealso { margin-top: 16px; font-size: 14px; color: var(--slate-500); }

.legal-footer { background: var(--graphite); margin-top: 40px; }
.legal-footer .inner {
  max-width: var(--maxw-legal);
  margin: 0 auto;
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.legal-footer .inner > span { font-size: 13px; color: var(--slate-400); }

/* =====================================================================
   PRIVACY INDEX (policy directory)
   ===================================================================== */
.policy-list { max-width: var(--maxw-legal); margin: 0 auto; padding: 28px 40px 90px; display: grid; gap: 14px; }
.policy-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--card);
  border: 1px solid rgba(35,35,35,0.10);
  border-radius: 14px;
  padding: 22px 24px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.policy-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -24px rgba(35,35,35,0.45);
  border-color: rgba(184,112,63,0.5);
}
.policy-item .pname { display: block; font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 18px; color: var(--graphite); }
.policy-item .pdesc { display: block; font-size: 14px; color: var(--slate-500); margin-top: 3px; }
.policy-item .arrow { font-family: 'IBM Plex Mono', monospace; font-size: 13px; color: var(--copper); white-space: nowrap; }
.policy-empty { color: var(--slate-500); font-size: 15px; }

/* =====================================================================
   404
   ===================================================================== */
.notfound {
  min-height: 58vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 40px;
}
.notfound .code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--copper);
}
.notfound h1 { font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 48px; letter-spacing: -0.02em; margin: 10px 0 12px; }
.notfound p { font-size: 16px; color: var(--slate-500); margin: 0 0 28px; max-width: 420px; }

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width: 900px) {
  .wrap { padding-left: 22px; padding-right: 22px; }
  .hero .wrap { padding-top: 64px; padding-bottom: 56px; }
  .hero h1 { font-size: 40px; }
  .section .wrap { padding-top: 56px; padding-bottom: 60px; }
  .product-grid { grid-template-columns: 1fr; }
  .about .wrap { grid-template-columns: 1fr; gap: 36px; padding-top: 60px; padding-bottom: 60px; }
  .legal-masthead { padding-left: 22px; padding-right: 22px; padding-top: 48px; }
  .legal-masthead h1 { font-size: 36px; }
  .legal-body { grid-template-columns: 1fr; gap: 8px; padding-left: 22px; padding-right: 22px; }
  .toc { display: none; }
  .legal-footer .inner { padding: 32px 22px; }
  .policy-list { padding-left: 22px; padding-right: 22px; }
  .site-nav { gap: 20px; }
}

@media (max-width: 560px) {
  .hero h1 { font-size: 33px; }
  .site-nav a { font-size: 13px; }
  .footer-cols { gap: 40px; }
  .section-head h2 { font-size: 26px; }
}