/* =====================================================================
   Swiss case-study page — inherits the Swiss tokens from the main sheet,
   adds an article/long-form layout.
   ===================================================================== */
@import url("../styles.css");

body { height: auto; overflow-y: auto; }

.case-top {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 15px var(--pad);
  background: rgba(255,255,255,0.9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.case-back { font-size: 13px; font-weight: 600; display: inline-flex; align-items: center; gap: 8px; }
.case-back:hover { color: var(--accent); }
.case-top .brand { font-size: 14px; }

.case-wrap { max-width: 880px; margin: 0 auto; padding: clamp(56px,9vh,108px) var(--pad) clamp(80px,12vh,140px); }
.case-eyebrow { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.14em; color: var(--accent); }
.case-title { font-size: clamp(40px,7vw,84px); font-weight: 800; letter-spacing: -0.04em; line-height: 0.96; margin: 18px 0 22px; }
.case-summary { font-size: clamp(18px,2.4vw,26px); color: var(--dim); max-width: 34ch; line-height: 1.38; }

.case-facts {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin: clamp(40px,6vh,72px) 0 0; padding: 28px 0;
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line);
}
.case-facts dt { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; color: var(--faint); margin-bottom: 8px; }
.case-facts dd { font-size: 15px; font-weight: 500; }

.case-section {
  margin-top: clamp(40px,6vh,60px);
  display: grid; grid-template-columns: 0.5fr 2fr; gap: clamp(20px,4vw,48px);
  border-top: 1px solid var(--line); padding-top: 30px;
}
.case-section h2 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink); }
.case-section p { font-size: 17px; color: var(--dim); margin-bottom: 16px; max-width: 62ch; line-height: 1.6; }
.case-section p:last-child { margin-bottom: 0; }
.case-section strong { color: var(--ink); font-weight: 600; }

.case-metrics { display: flex; flex-wrap: wrap; gap: clamp(28px,5vw,64px); margin-top: 4px; }
.case-metrics .m b { font-size: clamp(34px,5vw,54px); font-weight: 800; color: var(--ink); display: block; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; line-height: 1; }
.case-metrics .m small { display: block; color: var(--faint); font-size: 13px; margin-top: 10px; max-width: 24ch; line-height: 1.4; }

.case-quote { margin: clamp(48px,8vh,80px) 0 0; border-left: 3px solid var(--accent); padding-left: 30px; }
.case-quote p { font-size: clamp(22px,3.2vw,34px); font-weight: 500; letter-spacing: -0.02em; line-height: 1.2; }
.case-quote cite { display: block; margin-top: 18px; font-size: 13px; color: var(--faint); font-style: normal; }

/* placeholder marker for content still to craft */
.todo { background: rgba(229,52,27,0.09); border: 1px dashed var(--accent); color: var(--accent); padding: 1px 7px; font-size: 0.82em; font-weight: 600; border-radius: 2px; font-style: normal; }

.case-cta { margin-top: clamp(56px,9vh,100px); border-top: 1px solid var(--ink); padding-top: 36px; }
.case-cta span { display: block; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; color: var(--faint); margin-bottom: 16px; }
.case-cta a { font-size: clamp(24px,4vw,40px); font-weight: 700; letter-spacing: -0.03em; text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 3px; text-underline-offset: 7px; }
.case-cta a:hover { color: var(--accent); }

/* data-flow diagram — Swiss hairline boxes + red arrows */
.case-diagram { margin-top: clamp(40px,6vh,60px); border-top: 1px solid var(--line); padding-top: 30px; }
.case-diagram h2 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink); margin-bottom: 26px; }
.flow { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.flow-node { border: 1px solid var(--ink); padding: 13px 16px; background: #fff; }
.flow-node b { display: block; font-size: 14px; font-weight: 600; letter-spacing: -0.01em; }
.flow-node small { display: block; font-size: 11px; color: var(--faint); margin-top: 5px; line-height: 1.35; max-width: 26ch; }
.flow-arrow { color: var(--accent); font-size: 20px; font-weight: 700; padding: 0 2px; }
.flow-branch { display: flex; flex-direction: column; gap: 10px; }

@media (max-width: 720px) {
  .case-facts { grid-template-columns: 1fr 1fr; }
  .case-section { grid-template-columns: 1fr; gap: 12px; }
  .flow { flex-direction: column; align-items: stretch; }
  .flow-arrow { align-self: center; transform: rotate(90deg); }
  .flow-branch { width: 100%; }
}