/* ============================================================
   Brand directions — short page for the five MedTech directions.
   Builds on styles.css tokens. Calm and informative, no sales blocks.
   ============================================================ */

.bd-page {
  --bd-gutter: clamp(1.25rem, 4vw, 3.5rem);
  --bd-max: 1240px;
}

.bd-page main > * {
  width: min(100%, calc(var(--bd-max) + var(--bd-gutter) * 2));
  margin-inline: auto;
  padding-inline: var(--bd-gutter);
}

.bd-page h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); line-height: 1.08; text-wrap: balance; }
.bd-page h3 { font-family: var(--syne); font-weight: 700; letter-spacing: -0.01em; }

/* ---------- hero (centred, like the home page) ---------- */
.bd-hero {
  display: grid;
  justify-items: center;
  text-align: center;
  padding-top: calc(var(--head-h) + clamp(2.5rem, 5vw, 4.5rem));
  padding-bottom: clamp(3rem, 6vw, 5rem);
}
.bd-hero h1 { font-size: clamp(2.2rem, 5vw, 4.4rem); line-height: 1.02; letter-spacing: -0.02em; max-width: 20ch; text-wrap: balance; }
.bd-lede { max-width: 50ch; margin: clamp(1.4rem, 2.5vw, 2rem) auto 1rem; font-size: clamp(1rem, 1.25vw, 1.12rem); line-height: 1.6; color: var(--ink-2); text-wrap: pretty; }
.bd-meta { margin: 0 0 clamp(2.5rem, 4.5vw, 3.5rem); font-size: 0.82rem; color: var(--mute); }
.bd-hero-image { width: 100%; margin: 0; border-radius: 1.1rem; overflow: hidden; background: #ece5dc; }
.bd-hero-image img { display: block; width: 100%; height: auto; }

/* ---------- shared section rhythm ---------- */
.bd-section { padding-block: clamp(3.5rem, 6vw, 5.5rem); border-top: 1px solid var(--line); }
.bd-section p { color: var(--ink-2); line-height: 1.65; }

/* ---------- research ---------- */
.bd-research { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.bd-research-copy { display: grid; gap: 1.2rem; }
.bd-research-copy > p { margin: 0; max-width: 52ch; }
.bd-insights { list-style: none; margin: 0.6rem 0 0; padding: 0; display: grid; border-top: 1px solid var(--line); counter-reset: ins; }
.bd-insights li { counter-increment: ins; display: grid; grid-template-columns: 2.2rem minmax(0, 1fr); gap: 0 0.8rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.bd-insights li::before { content: "0" counter(ins); grid-row: span 2; font-size: 0.8rem; color: var(--mute); padding-top: 0.2rem; font-variant-numeric: tabular-nums; }
.bd-insights h3 { font-size: 1.05rem; margin: 0 0 0.25rem; }
.bd-insights p { margin: 0; font-size: 0.95rem; }

.bd-map { margin: 0; display: grid; gap: 0.9rem; }
.bd-map-grid {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: 1.1rem;
  background:
    linear-gradient(var(--line), var(--line)) 50% 0 / 1px 100% no-repeat,
    linear-gradient(var(--line), var(--line)) 0 50% / 100% 1px no-repeat,
    #efe8da;
}
.bd-axis { position: absolute; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mute); }
.bd-axis-top { top: 0.8rem; left: 50%; transform: translateX(-50%); }
.bd-axis-bottom { bottom: 0.8rem; left: 50%; transform: translateX(-50%); }
.bd-axis-left { left: 0.9rem; top: 50%; transform: translateY(-50%); }
.bd-axis-right { right: 0.9rem; top: 50%; transform: translateY(-50%); }
.bd-dot {
  position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -50%);
  display: grid; place-items: center; width: 2.4rem; height: 2.4rem; border-radius: 50%;
  background: var(--c); color: var(--t); font-family: var(--syne); font-weight: 700; font-size: 0.95rem;
  box-shadow: 0 0 0 1px rgba(24, 40, 48, 0.18);
}
.bd-map figcaption { font-size: 0.85rem; color: var(--ink-2); }

/* ---------- click-through directions ---------- */
.bd-directions h2 { margin-bottom: clamp(1.5rem, 3vw, 2rem); }
.bd-tabs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.2rem; }
.bd-tabs button {
  display: inline-flex; align-items: center; gap: 0.55rem;
  padding: 0.55rem 1rem 0.55rem 0.6rem;
  border: 1px solid rgba(24, 40, 48, 0.22); border-radius: 0.7rem;
  background: var(--cream); color: var(--ink);
  font: inherit; font-size: 0.95rem; cursor: pointer;
  transition: background 0.3s var(--ease-out), color 0.3s var(--ease-out), border-color 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}
.bd-tabs button b {
  display: grid; place-items: center; width: 1.6rem; height: 1.6rem; border-radius: 50%;
  background: var(--c); color: var(--t); font-size: 0.78rem; font-weight: 600;
  box-shadow: inset 0 0 0 1px rgba(24, 40, 48, 0.2);
}
.bd-tabs button:hover { border-color: var(--ink); transform: translateY(-1px); }
.bd-tabs button[aria-selected="true"] { background: var(--ink); border-color: var(--ink); color: var(--cream); }

.bd-stage { position: relative; }
.bd-board { margin: 0; border-radius: 1.1rem; overflow: hidden; background: #ece5dc; }
.bd-board img { display: block; width: 100%; height: auto; transition: opacity 0.35s var(--ease-out); }
.bd-board img.is-swapping { opacity: 0; }

.bd-arrow {
  position: absolute; top: 50%; z-index: 2; transform: translateY(-50%);
  display: grid; place-items: center; width: 3.2rem; height: 3.2rem; border-radius: 50%;
  border: 1px solid rgba(24, 40, 48, 0.18); background: rgba(253, 250, 243, 0.94); color: var(--ink);
  cursor: pointer; box-shadow: 0 10px 30px -14px rgba(24, 40, 48, 0.45);
  transition: background 0.3s var(--ease-out), color 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}
.bd-arrow svg { width: 1.2rem; height: 1.2rem; }
.bd-prev { left: -1.6rem; }
.bd-next { right: -1.6rem; }
.bd-arrow:hover { background: var(--ink); color: var(--cream); }
.bd-prev:hover { transform: translate(-2px, -50%); }
.bd-next:hover { transform: translate(2px, -50%); }

.bd-count { margin: 1rem 0 0; text-align: center; font-size: 0.9rem; color: var(--ink-2); font-variant-numeric: tabular-nums; }

/* ---------- start anywhere: centred heading and intro, four ways in a row ---------- */
.bd-start { display: grid; justify-items: center; text-align: center; gap: 1.2rem; }
.bd-start-intro { margin: 0 auto; max-width: 52ch; font-size: clamp(1rem, 1.2vw, 1.08rem); }
.bd-ways { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(1.5rem, 3vw, 2.5rem); width: 100%; margin-top: clamp(1.5rem, 3vw, 2.5rem); }
.bd-ways > div { display: grid; align-content: start; gap: 0.45rem; }
.bd-ways h3 { font-size: clamp(1.05rem, 1.4vw, 1.2rem); margin: 0; }
.bd-ways p { margin: 0; font-size: 0.95rem; }

/* ---------- footer ---------- */
.bd-footer .bd-footer-note { margin: 0; max-width: 62ch; font-size: 0.8rem; color: var(--ink-2); text-align: right; }

/* ---------- responsive ---------- */
@media (max-width: 1023px) {
  .bd-research { grid-template-columns: 1fr; }
  .bd-ways { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bd-prev { left: 0.6rem; }
  .bd-next { right: 0.6rem; }
}

@media (max-width: 720px) {
  .bd-hero { justify-items: start; text-align: left; }
  .bd-hero h1 { font-size: clamp(1.9rem, 8vw, 2.6rem); line-height: 1.05; max-width: none; }
  .bd-lede { margin-inline: 0; }
  .bd-start { justify-items: start; text-align: left; }
  .bd-start-intro { margin-inline: 0; }
  .bd-ways { grid-template-columns: 1fr; }
  .bd-tabs { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin-inline: calc(var(--bd-gutter) * -1); padding-inline: var(--bd-gutter); }
  .bd-tabs::-webkit-scrollbar { display: none; }
  .bd-tabs button { flex: none; }
  .bd-arrow { width: 2.6rem; height: 2.6rem; }
  .bd-footer .bd-footer-note { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  .bd-board img, .bd-tabs button, .bd-arrow { transition: none; }
}