:root {
  --sbc-page: #faf7f2;
  --sbc-ink: #2b2118;
  --sbc-claret: #7b2233;
  --sbc-brass: #a08b6c;
  --sbc-quiet: #6b5f52;
  --sbc-line: #e0d8cc;
  --sbc-card: #ffffff;
  --sbc-head: "Libre Franklin", system-ui, -apple-system, "Segoe UI", sans-serif;
  --sbc-body: "Newsreader", Georgia, "Times New Roman", serif;
}

/* inheritance model + document typography */
html, body, * {
  box-sizing: border-box;
  text-size-adjust: 100%;
}
.sbc-page {
  margin: 0;
  background: var(--sbc-page);
  color: var(--sbc-ink);
  font-family: var(--sbc-body);
  font-size: 1.07rem;
  line-height: 1.7;
}

.sbc-skip {
  position: absolute;
  left: -9999px;
  background: var(--sbc-claret);
  color: #fff;
  padding: 0.7rem 1.1rem;
  font-family: var(--sbc-head);
  font-weight: 700;
  text-decoration: none;
  z-index: 40;
}
.sbc-skip:focus { left: 0.6rem; top: 0.6rem; }

.sbc-band { width: 100%; max-width: 68rem; margin-inline: auto; padding-inline: 1.2rem; }

.sbc-top { background: var(--sbc-card); border-block-end: 1px solid var(--sbc-line); }
.sbc-top-in { display: flex; flex-direction: column; gap: 0.55rem; padding-block: 0.95rem; }
.sbc-id { display: inline-flex; align-items: center; gap: 0.55rem; text-decoration: none; color: var(--sbc-claret); }
.sbc-id-tx {
  font-family: var(--sbc-head);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: 0.01em;
  color: var(--sbc-ink);
}
.sbc-nav { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.sbc-nav-a { font-family: var(--sbc-head); font-size: 0.87rem; font-weight: 500; color: var(--sbc-quiet); text-decoration: none; }
.sbc-nav-a:hover { color: var(--sbc-claret); }

/* offset overlapping panels */
.sbc-open { padding-block: 2.4rem 2.6rem; }
.sbc-stack { position: relative; }
.sbc-stack-front {
  position: relative;
  z-index: 2;
  background: var(--sbc-card);
  border: 1px solid var(--sbc-line);
  border-block-start: 5px solid var(--sbc-claret);
  padding: 1.5rem 1.35rem;
}
.sbc-stack-back {
  position: relative;
  z-index: 1;
  background: #f1ece3;
  border: 1px solid var(--sbc-line);
  padding: 1.5rem 1.35rem;
  margin-block-start: -0.6rem;
  margin-inline-start: 1.1rem;
}
.sbc-over {
  margin: 0 0 0.8rem;
  font-family: var(--sbc-head);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sbc-brass);
}
.sbc-open-h {
  font-family: var(--sbc-head);
  font-weight: 700;
  font-size: clamp(1.8rem, 5.4vw, 2.9rem);
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin: 0 0 1rem;
  max-width: 20ch;
}
.sbc-open-p { margin: 0; max-width: 60ch; }
.sbc-stack-back-p { margin: 0; max-width: 58ch; color: var(--sbc-quiet); }
.sbc-stack-cta { margin: 1.3rem 0 0; }

.sbc-btn {
  display: inline-block;
  background: var(--sbc-claret);
  color: #fff;
  font-family: var(--sbc-head);
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
}
.sbc-btn:hover { background: #631b29; }

.sbc-h2 {
  font-family: var(--sbc-head);
  font-weight: 700;
  font-size: clamp(1.4rem, 4vw, 2rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}
.sbc-h2-sub { margin: 0 0 1.6rem; max-width: 58ch; color: var(--sbc-quiet); font-size: 1rem; }

/* horizontal 4-stage progress bar */
.sbc-work { padding-block: 2.4rem; border-block-start: 1px solid var(--sbc-line); }
.sbc-progress {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-block-end: 1.5rem;
  border-block-end: 3px solid var(--sbc-line);
}
.sbc-stage {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  text-align: start;
  cursor: pointer;
  background: transparent;
  border: 0;
  border-block-end: 3px solid transparent;
  margin-block-end: -3px;
  padding: 0.75rem 0.3rem;
  font-family: var(--sbc-head);
  color: var(--sbc-quiet);
}
.sbc-stage:hover { color: var(--sbc-ink); }
.sbc-stage[aria-selected="true"] { color: var(--sbc-claret); border-block-end-color: var(--sbc-claret); }
.sbc-stage-n { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; color: var(--sbc-brass); }
.sbc-stage[aria-selected="true"] .sbc-stage-n { color: var(--sbc-claret); }
.sbc-stage-l { font-size: 1rem; font-weight: 700; }

.sbc-detail { max-width: 68ch; }
.sbc-detail-h {
  font-family: var(--sbc-head);
  font-weight: 700;
  font-size: 1.2rem;
  margin: 0 0 0.5rem;
}
.sbc-detail p { margin: 0; }

/* hanging bullets */
.sbc-areas { padding-block: 2.4rem; border-block-start: 1px solid var(--sbc-line); }
.sbc-areas-grid { display: grid; gap: 1.8rem; }
.sbc-hang { list-style: none; margin: 0; padding: 0; }
.sbc-hang-li {
  position: relative;
  padding-inline-start: 1.5rem;
  margin-block-end: 1rem;
  max-width: 62ch;
}
.sbc-hang-li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.82em;
  width: 0.8rem;
  height: 2px;
  background: var(--sbc-brass);
}
.sbc-hang-k { font-family: var(--sbc-head); font-weight: 700; font-size: 0.97em; }
.sbc-aside {
  background: #f1ece3;
  border-inline-start: 4px solid var(--sbc-brass);
  padding: 1.1rem 1.2rem;
  align-self: start;
}
.sbc-aside-h { font-family: var(--sbc-head); font-weight: 700; font-size: 0.95rem; margin: 0 0 0.5rem; }
.sbc-aside p { margin: 0; font-size: 0.98rem; color: var(--sbc-quiet); }

.sbc-contact { padding-block: 2.4rem 3rem; border-block-start: 1px solid var(--sbc-line); }
.sbc-contact-grid { display: grid; gap: 1.7rem; }
.sbc-contact p { max-width: 58ch; }
.sbc-contact-mail { margin-block: 1.2rem 0.4rem; font-size: 1.15rem; }
.sbc-contact-note { color: var(--sbc-quiet); font-size: 0.95rem; }
.sbc-office {
  background: var(--sbc-card);
  border: 1px solid var(--sbc-line);
  padding: 1.2rem;
  align-self: start;
}
.sbc-office-h {
  font-family: var(--sbc-head);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sbc-quiet);
  margin: 0 0 0.7rem;
}
.sbc-addr { font-style: normal; line-height: 1.7; }
.sbc-addr-run { font-size: 0.9rem; color: var(--sbc-quiet); margin-block-start: 0.3rem; }

.sbc-a { color: var(--sbc-claret); text-underline-offset: 3px; }
.sbc-a:hover { color: var(--sbc-brass); }
.sbc-a-lead { font-family: var(--sbc-head); font-weight: 700; }

.sbc-foot { background: var(--sbc-ink); color: #d3c8bb; padding-block: 2rem; }
.sbc-foot-grid { display: grid; gap: 1.2rem; }
.sbc-foot-name { font-family: var(--sbc-head); font-weight: 700; color: #fff; margin: 0; }
.sbc-foot-l { margin: 0.26rem 0; font-size: 0.88rem; }
.sbc-foot .sbc-a { color: #e0a9b3; }
.sbc-foot .sbc-a:hover { color: var(--sbc-brass); }
.sbc-foot .sbc-addr-run { color: #a99b8d; }

/* client privacy notice */
.sbc-notice { padding-block: 2.2rem 3rem; }
.sbc-notice-h {
  font-family: var(--sbc-head);
  font-weight: 700;
  font-size: clamp(1.8rem, 5.4vw, 2.7rem);
  letter-spacing: -0.025em;
  margin: 0 0 0.9rem;
}
.sbc-lede {
  max-width: 62ch;
  margin: 0 0 2.1rem;
  padding: 1rem 1.15rem;
  background: #f1ece3;
  border-inline-start: 4px solid var(--sbc-claret);
}
.sbc-clause-h {
  font-family: var(--sbc-head);
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--sbc-claret);
  margin: 1.9rem 0 0.45rem;
}
.sbc-notice p { max-width: 68ch; margin: 0 0 0.85rem; }
.sbc-return { margin-block-start: 2.2rem; }

:focus-visible { outline: 3px solid var(--sbc-claret); outline-offset: 2px; }

@media (min-width: 680px) {
  .sbc-top-in { flex-direction: row; align-items: center; justify-content: space-between; }
  .sbc-progress { grid-template-columns: repeat(4, 1fr); }
  .sbc-stage { flex-direction: column; gap: 0.15rem; }
  .sbc-foot-grid { grid-template-columns: 1fr auto; align-items: end; }
  .sbc-foot-side { text-align: end; }
}

@media (min-width: 980px) {
  .sbc-open { padding-block: 3.6rem 3.4rem; }
  .sbc-work, .sbc-areas { padding-block: 3.4rem; }
  .sbc-contact { padding-block: 3.4rem 4rem; }
  .sbc-stack { display: grid; grid-template-columns: 1fr 1fr; align-items: start; }
  .sbc-stack-front { padding: 2.4rem 2.2rem; margin-inline-end: -3rem; margin-block-start: 1.6rem; }
  .sbc-stack-back { margin: 0; padding: 2.4rem 2.2rem 2.4rem 4.2rem; }
  .sbc-areas-grid { grid-template-columns: minmax(0, 1.6fr) minmax(15rem, 0.75fr); gap: 2.8rem; }
  .sbc-contact-grid { grid-template-columns: minmax(0, 1.5fr) minmax(16rem, 0.8fr); gap: 3rem; }
}