/* ═══════════════════════════════════════
   ECHO — results.css
   Funnel results (homepage #work + case study) and the
   Executive Health case-study page.
   Content is rendered from data/results.json by
   tools/build_results.py. Uses base.css tokens only.
   ═══════════════════════════════════════ */

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ── Section head (homepage) ── */


/* ═══ SIGNAL PATH ═══
   One vertical rail; each stage sits on it as an echo-ring node.
   motion.js sets --path (0→1) as the list scrolls through, which
   draws the accent line down the rail. */
.results-path {
  --rail: 1.25rem;
  --path: 1;
  position: relative;
  z-index: 1;
  list-style: none;
  margin: clamp(3rem, 6vw, 4.5rem) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(3.5rem, 7vw, 6rem);
}
.motion-ok .results-path { --path: 0; }
.results-path::before,
.results-path::after {
  content: '';
  position: absolute;
  left: var(--rail);
  top: 0.75rem;
  bottom: 0;
  width: 1px;
  background: var(--border);
}
.results-path::after {
  background: linear-gradient(var(--accent), var(--accent-dim));
  transform: scaleY(var(--path));
  transform-origin: top;
}

.rstage {
  position: relative;
  display: grid;
  grid-template-columns: calc(var(--rail) * 2 + 1rem) minmax(7rem, 0.55fr) minmax(0, 1.25fr) minmax(0, 1fr);
  column-gap: clamp(1.5rem, 3vw, 3rem);
  align-items: start;
}

/* node: dot + three rings that echo out once on reveal */
.rstage__node {
  position: relative;
  grid-column: 1;
  width: calc(var(--rail) * 2);
  height: calc(var(--rail) * 2);
  margin-top: -0.35rem;
  z-index: 1;
}
.rstage__node::before {
  content: '';
  position: absolute;
  left: 50%; top: 50%;
  width: 9px; height: 9px;
  margin: -4.5px 0 0 -4.5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px var(--bg);
}
.rstage__node i {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--accent);
  opacity: 0;
}
.rstage.visible .rstage__node i { animation: rstageEcho 1.6s var(--ease-out, cubic-bezier(0.16, 1, 0.3, 1)) forwards; }
.rstage.visible .rstage__node i:nth-child(2) { animation-delay: 0.18s; }
.rstage.visible .rstage__node i:nth-child(3) { animation-delay: 0.36s; }
@keyframes rstageEcho {
  0%   { transform: scale(0.3); opacity: 0.55; }
  100% { transform: scale(1.9); opacity: 0; }
}

.rstage__meta {
  grid-column: 2;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-top: 0.3rem;
}
.rstage__num {
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--accent);
}
.rstage__stage {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.rstage__figure { grid-column: 3; min-width: 0; }
.rstage__number {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(3.5rem, 8vw, 6.5rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--text);
  font-variant-numeric: lining-nums;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  column-gap: 0.18em;
}
.rstage__from {
  font-size: 0.42em;
  font-weight: 400;
  color: var(--text-muted);
  opacity: 0.8;
}
.rstage__arrow {
  font-size: 0.42em;
  font-weight: 400;
  color: var(--accent);
}
.rstage__label {
  margin-top: 0.9rem;
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.rstage__supporting {
  margin-top: 0.35rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.rstage__body {
  grid-column: 4;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 0.4rem;
}
.rstage__client {
  align-self: flex-start;
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 100px;
}
.rstage__context {
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--text-muted);
}
.rstage__proves {
  font-family: var(--font-head);
  font-style: italic;
  font-size: 1.3rem;
  line-height: 1.35;
  color: var(--text);
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.rstage__proves span {
  display: block;
  margin-bottom: 0.4rem;
  font-family: 'DM Mono', monospace;
  font-style: normal;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── CTA row ── */


/* ── stacked layout: tablet + phone ── */
@media (max-width: 900px) {
  .results-path { --rail: 0.9rem; }
  .rstage {
    grid-template-columns: calc(var(--rail) * 2) minmax(0, 1fr);
    column-gap: 1.1rem;
    row-gap: 1rem;
  }
  .rstage__meta { grid-column: 2; flex-direction: row; align-items: baseline; gap: 0.75rem; padding-top: 0; }
  .rstage__figure,
  .rstage__body { grid-column: 2; padding-top: 0; }
  .rstage__number { font-size: clamp(3rem, 14vw, 4.5rem); }
}

@media (prefers-reduced-motion: reduce) {
  .motion-ok .results-path,
  .results-path { --path: 1; }
  .rstage.visible .rstage__node i { animation: none; }
}


/* ═══════════════════════════════════════
   CASE STUDY PAGE
   ═══════════════════════════════════════ */

/* V4 motion grammar — index.css carries it for the homepage;
   the case page loads motion.js but not index.css. */
.case-page {
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-med: 0.7s;
  --stagger: 90ms;
}
.case-page .reveal-fade { opacity: 0; transform: translateY(16px); transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out); transition-delay: calc(var(--i, 0) * var(--stagger)); }
.case-page .reveal-fade.visible { opacity: 1; transform: none; }
.case-page .reveal-line .line { display: block; overflow: hidden; }
.case-page .reveal-line .line > span { display: block; transform: translateY(110%); transition: transform var(--dur-med) var(--ease-out); transition-delay: calc(var(--line-i, 0) * var(--stagger)); }
.case-page .reveal-line.visible .line > span { transform: none; }
.case-page .mo-ripples { position: fixed; inset: 0; z-index: 60; pointer-events: none; overflow: hidden; }
.case-page .mo-ripple { position: absolute; width: 0; height: 0; border-radius: 50%; border: 1px solid var(--accent); opacity: 0.35; transform: translate(-50%, -50%); animation: moRipple 1.1s var(--ease-out) forwards; }
.case-page .mo-ripple--2 { animation-duration: 1.4s; }
@keyframes moRipple {
  0%   { width: 0; height: 0; opacity: 0.35; }
  100% { width: 180px; height: 180px; opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .case-page .reveal-fade { opacity: 1 !important; transform: none !important; transition: none !important; }
  .case-page .reveal-line .line > span { transform: none !important; transition: none !important; }
}

/* ── Hero ── */
.case-hero {
  padding-top: clamp(7.5rem, 13vw, 10.5rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}
.case-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: end;
}
.case-back { display: inline-block; margin-bottom: 2rem; }
.case-hero__eyebrow {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.case-hero__title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(3rem, 7.2vw, 6rem);
  line-height: 0.98;
  letter-spacing: -0.015em;
  color: var(--text);
  text-wrap: balance;
}
.case-hero__title em { font-style: italic; color: var(--accent); }
.case-hero__lead {
  max-width: 34rem;
  margin-top: 1.75rem;
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--text-muted);
}

/* headline result: the one dark object on the hero */
.case-hero__result {
  position: relative;
  overflow: hidden;
  min-height: 17rem;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  border-radius: 18px;
  background: var(--text);
  color: #f2edff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.case-hero__rings { position: absolute; right: -4.5rem; top: -4.5rem; width: 15rem; height: 15rem; }
.case-hero__rings i {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(242, 237, 255, 0.14);
}
.case-hero__rings i:nth-child(2) { inset: 2.5rem; }
.case-hero__rings i:nth-child(3) { inset: 5rem; border-color: rgba(242, 237, 255, 0.3); }
.case-hero__figure {
  position: relative;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(4rem, 9vw, 7rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
}
.case-hero__label {
  position: relative;
  margin-top: 1rem;
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(242, 237, 255, 0.75);
}
.case-hero__supporting {
  position: relative;
  margin-top: 0.4rem;
  font-size: 0.9rem;
  color: rgba(242, 237, 255, 0.6);
  font-variant-numeric: tabular-nums;
}
.case-hero__result .rstage__from,
.case-hero__result .rstage__arrow { font-size: 0.42em; font-weight: 400; color: rgba(242, 237, 255, 0.6); }

/* facts strip */
.case-facts {
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.case-facts > div { padding: 1.25rem 1.25rem 1.25rem 0; }
.case-facts > div + div { padding-left: 1.25rem; border-left: 1px solid var(--border); }
.case-facts dt {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}
.case-facts dd {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
}

/* ── Sections ── */
.case-section { padding-block: clamp(4rem, 9vw, 7.5rem); }
.case-steps-wrap { background: var(--surface); border-block: 1px solid var(--border); }
.case-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 1.5rem clamp(2rem, 5vw, 4rem);
  align-items: baseline;
}
.case-split .section-label { margin: 0; }
.case-section__title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height: 1.05;
  color: var(--text);
  text-wrap: balance;
}
.case-prose { max-width: 40rem; }
.case-prose__big {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  line-height: 1.15;
  color: var(--text);
  text-wrap: balance;
}
.case-prose p + p {
  margin-top: 1.25rem;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-muted);
}

/* steps: a real sequence, so the numbers carry meaning */
.case-steps {
  list-style: none;
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 4vw, 3rem) clamp(2rem, 5vw, 4rem);
}
.case-step { border-top: 1px solid var(--border); padding-top: 1.25rem; }
.case-step__num {
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--accent);
}
.case-step__title {
  margin: 0.35rem 0 0.75rem;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(1.45rem, 2.4vw, 1.8rem);
  line-height: 1.15;
  color: var(--text);
}
.case-step__text { font-size: 1rem; line-height: 1.75; color: var(--text-muted); max-width: 32rem; }
.case-step__text strong { color: var(--text); font-weight: 500; }

.results-path--case { margin-top: clamp(2.5rem, 5vw, 3.5rem); }

.case-quote { margin: clamp(3rem, 6vw, 4.5rem) 0 0; max-width: 46rem; }
.case-quote blockquote p {
  font-family: var(--font-head);
  font-style: italic;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.3;
  color: var(--text);
}
.case-quote figcaption {
  margin-top: 1rem;
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── Close: dark band ── */
.case-close {
  background: var(--text);
  padding-block: clamp(4.5rem, 10vw, 8rem);
}
.case-close__inner { display: flex; flex-direction: column; gap: 2.25rem; }
.case-close__line {
  max-width: 46rem;
  font-family: var(--font-head);
  font-style: italic;
  font-size: clamp(1.7rem, 3.6vw, 2.75rem);
  line-height: 1.2;
  color: #f2edff;
  text-wrap: balance;
}
.case-close__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 2rem; }
.case-close__back {
  color: rgba(242, 237, 255, 0.75);
  text-decoration: underline;
  text-underline-offset: 4px;
  padding-block: 0.35rem;
}
.case-close__back:hover,
.case-close__back:focus-visible { color: #f2edff; }

@media (max-width: 900px) {
  .case-hero__inner,
  .case-split { grid-template-columns: minmax(0, 1fr); }
  .case-hero__result { min-height: 13rem; }
  .case-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .case-facts > div:nth-child(3) { padding-left: 0; border-left: 0; }
  .case-facts > div:nth-child(n+3) { border-top: 1px solid var(--border); }
  .case-steps { grid-template-columns: minmax(0, 1fr); }
}