:root {
  --surface: #edf0e9;
  --surface-deep: #dfe8dc;
  --paper: #fffdf6;
  --ink: #18322e;
  --muted: #53625b;
  --line: #b8c8ba;
  --moss: #2e6b58;
  --moss-deep: #163a34;
  --saffron: #c38a2b;
  --coral: #bd5e4b;
  --shadow: 0 22px 60px rgba(22, 58, 52, 0.13);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--surface);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--surface); line-height: 1.55; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 20; padding: .65rem .9rem;
  background: var(--saffron); color: var(--ink); font-weight: 800; text-decoration: none;
}
.skip-link:focus { top: 1rem; }
.topbar {
  display: flex; align-items: center; gap: 2rem; max-width: 1240px; margin: 0 auto;
  padding: 1.1rem 2rem; border-bottom: 1px solid rgba(24, 50, 46, .18);
}
.brand { display: inline-flex; align-items: center; gap: .65rem; font-weight: 850; text-decoration: none; letter-spacing: -.02em; }
.brand img { border-radius: 9px; }
.topbar nav { display: flex; gap: 1.4rem; margin-left: auto; font-size: .86rem; font-weight: 750; }
.topbar nav a, .footer a:not(.brand) { text-decoration: none; }
.topbar nav a:hover, .topbar nav a:focus-visible, .footer a:hover, .footer a:focus-visible { color: var(--moss); }
.topbar__action {
  padding: .62rem .9rem; border: 1px solid var(--moss); color: var(--moss-deep);
  font-size: .78rem; font-weight: 850; text-decoration: none; text-transform: uppercase;
  letter-spacing: .08em; background: rgba(255, 253, 246, .45);
}
.hero {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(2rem, 6vw, 7rem); max-width: 1240px; margin: 0 auto; padding: clamp(4rem, 8vw, 8rem) 2rem 5rem;
}
.eyebrow, .section-label, .product-name {
  margin: 0 0 .8rem; color: var(--moss); font-size: .74rem; font-weight: 900;
  letter-spacing: .14em; text-transform: uppercase;
}
.product-name { color: var(--saffron); }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: Georgia, "Times New Roman", serif; font-weight: 500; letter-spacing: -.055em; line-height: .98; }
h1 { max-width: 720px; margin-bottom: 1.4rem; font-size: clamp(3.3rem, 7.2vw, 7.6rem); }
h2 { margin-bottom: 1rem; font-size: clamp(2.5rem, 4.6vw, 5rem); }
h3 { letter-spacing: -.025em; line-height: 1.15; }
.hero__lede { max-width: 620px; color: var(--muted); font-size: clamp(1.02rem, 1.5vw, 1.25rem); }
.hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 2rem 0 1rem; }
.button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 2.85rem;
  padding: .75rem 1.05rem; border: 1px solid transparent; font-weight: 850; text-decoration: none;
}
.button--signal { background: var(--moss-deep); color: var(--paper); }
.button--signal:hover, .button--signal:focus-visible { background: var(--moss); }
.button--quiet { border-color: var(--moss); color: var(--moss-deep); }
.button--quiet:hover, .button--quiet:focus-visible { background: var(--surface-deep); }
.ownership-note { max-width: 530px; color: var(--muted); font-size: .78rem; }
.hero__board {
  align-self: center; padding: 1.25rem; background: var(--moss-deep); color: var(--paper);
  box-shadow: var(--shadow); transform: rotate(1.2deg);
}
.board__topline, .board__footer { display: flex; justify-content: space-between; gap: 1rem; color: #a8c7b4; font: 700 .68rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; text-transform: uppercase; }
.board__path { display: grid; grid-template-columns: 1fr .4fr 1.2fr .4fr 1fr; align-items: center; margin: 4.5rem 0; }
.path-node { display: grid; gap: .35rem; min-width: 0; }
.path-node span { color: #a8c7b4; font: .68rem ui-monospace, SFMono-Regular, Menlo, monospace; }
.path-node strong { font-size: .82rem; letter-spacing: .08em; }
.path-node small { color: #aec1b5; font-size: .75rem; }
.path-node--warn strong { color: var(--saffron); }
.path-node--stop strong { color: #f2a690; }
.path-line { height: 1px; background: #719781; }
.board__readout { display: flex; gap: .8rem; align-items: center; padding: .85rem; border: 1px solid #547d69; background: rgba(255, 253, 246, .08); }
.readout__mark { display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; background: var(--saffron); color: var(--ink); font-weight: 950; }
.board__readout strong, .board__readout small { display: block; }
.board__readout strong { font-size: .82rem; letter-spacing: .08em; }
.board__readout small { color: #aec1b5; font-size: .76rem; }
.board__footer { margin-top: 1.3rem; color: #c6d8c5; }
.proof-rail { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 1240px; margin: 0 auto; padding: 0 2rem 4rem; }
.proof-rail div { display: grid; gap: .15rem; padding: 1rem 1rem 1rem 0; border-top: 1px solid var(--line); }
.proof-rail strong { font: 1.7rem Georgia, serif; }
.proof-rail span { color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; }
.section-shell { max-width: 1240px; margin: 0 auto; padding: clamp(4rem, 8vw, 7rem) 2rem; }
.section-shell--paper { max-width: none; padding-left: max(2rem, calc((100% - 1240px) / 2)); padding-right: max(2rem, calc((100% - 1240px) / 2)); background: var(--paper); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-heading { max-width: 800px; }
.section-heading--split { display: grid; grid-template-columns: 1fr .7fr; gap: 4rem; max-width: none; align-items: end; }
.section-heading--split > p { margin-bottom: .5rem; color: var(--muted); }
.case-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; margin: 3rem 0 .8rem; }
.case-tab { display: grid; gap: .25rem; min-height: 5.4rem; padding: 1rem; border: 1px solid var(--line); background: transparent; color: var(--ink); text-align: left; cursor: pointer; }
.case-tab span { font-weight: 850; }
.case-tab small { color: var(--muted); font-size: .78rem; }
.case-tab.is-active { border-color: var(--moss-deep); background: var(--moss-deep); color: var(--paper); }
.case-tab.is-active small { color: #c6d8c5; }
.case-workspace { display: grid; grid-template-columns: 1.35fr .65fr; gap: 1px; background: var(--line); box-shadow: var(--shadow); }
.case-main, .receipt { padding: clamp(1.35rem, 3vw, 2.7rem); background: var(--paper); }
.case-meta { display: flex; justify-content: space-between; gap: 1rem; color: var(--muted); font: .72rem ui-monospace, SFMono-Regular, Menlo, monospace; }
.case-status { margin: 2rem 0 .8rem; color: var(--coral); font: 900 .78rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; }
.case-main h3 { font-size: clamp(1.6rem, 3vw, 2.7rem); }
.case-main > p:not(.case-status):not(.case-meta) { max-width: 680px; color: var(--muted); }
.evidence-list, .receipt dl { display: grid; gap: .65rem; margin: 2rem 0 0; }
.evidence-list div, .receipt dl div { display: grid; grid-template-columns: 1.1fr 1fr auto; gap: .75rem; align-items: baseline; padding-top: .65rem; border-top: 1px solid var(--line); }
dt { color: var(--muted); font: .72rem ui-monospace, SFMono-Regular, Menlo, monospace; }
dd { margin: 0; font-weight: 800; }
code { color: var(--moss); font: .68rem ui-monospace, SFMono-Regular, Menlo, monospace; }
.receipt { background: var(--moss-deep); color: var(--paper); }
.receipt .section-label { color: #a8c7b4; }
.receipt h3 { font: 1.45rem Georgia, serif; }
.receipt__decision { margin: 1.6rem 0 .8rem; color: var(--saffron); font: 900 2rem ui-monospace, SFMono-Regular, Menlo, monospace; }
.receipt > p:not(.section-label) { color: #d4e2d3; }
.receipt dt { color: #a8c7b4; }
.receipt dd { color: var(--paper); }
.contract-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-top: 3rem; }
.contract-grid article { padding-top: 1rem; border-top: 2px solid var(--moss); }
.contract-grid span { color: var(--saffron); font: .72rem ui-monospace, SFMono-Regular, Menlo, monospace; }
.contract-grid h3 { margin: 1rem 0 .5rem; font-size: 1.35rem; }
.contract-grid p { color: var(--muted); font-size: .92rem; }
.contract-note { display: flex; flex-wrap: wrap; gap: .5rem 1rem; margin-top: 3.5rem; padding: 1.1rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.contract-note strong { color: var(--moss); }
.fit { display: grid; grid-template-columns: .8fr 1.2fr; gap: 5rem; align-items: end; background: var(--surface-deep); }
.fit__body { display: grid; gap: 1.4rem; max-width: 600px; }
.fit__body p { color: var(--muted); }
.footer { display: grid; grid-template-columns: auto 1fr auto; gap: 2rem; align-items: center; max-width: 1240px; margin: 0 auto; padding: 2rem; color: var(--muted); font-size: .8rem; }
.footer p { margin: 0; }
:focus-visible { outline: 3px solid var(--saffron); outline-offset: 3px; }
@media (max-width: 850px) {
  .topbar { gap: 1rem; padding-left: 1rem; padding-right: 1rem; }
  .topbar nav { display: none; }
  .topbar__action { margin-left: auto; }
  .hero { grid-template-columns: 1fr; padding-top: 4rem; }
  .hero__board { max-width: 720px; width: 100%; justify-self: center; transform: none; }
  .section-heading--split, .fit { grid-template-columns: 1fr; gap: 1.4rem; }
  .case-workspace { grid-template-columns: 1fr; }
  .contract-grid { grid-template-columns: repeat(2, 1fr); }
  .footer { grid-template-columns: 1fr; gap: .8rem; }
}
@media (max-width: 560px) {
  h1 { font-size: clamp(3rem, 16vw, 5rem); }
  .hero, .section-shell, .section-shell--paper { padding-left: 1rem; padding-right: 1rem; }
  .proof-rail { grid-template-columns: repeat(2, 1fr); padding-left: 1rem; padding-right: 1rem; }
  .case-tabs { grid-template-columns: 1fr; }
  .case-meta { display: grid; }
  .evidence-list div, .receipt dl div { grid-template-columns: 1fr 1fr; }
  .evidence-list code { grid-column: 2; }
  .contract-grid { grid-template-columns: 1fr; }
  .board__path { margin: 3rem 0; }
  .path-node strong { font-size: .68rem; }
  .path-node small { font-size: .66rem; }
}
@media (prefers-reduced-motion: no-preference) {
  .hero__copy { animation: rise .65s ease-out both; }
  .hero__board { animation: float-in .8s .1s ease-out both; }
  @keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
  @keyframes float-in { from { opacity: 0; transform: translateY(20px) rotate(1.2deg); } to { opacity: 1; transform: rotate(1.2deg); } }
}