/* ==================================================
   PULSE PERFORMANCE — palette + bespoke sections

   Palette is taken straight from the product's own token
   layer, converted from OKLCH to hex:
     canvas-ink      oklch(11.5% 0.014 330)  #0C080C
     brand-primary   oklch(52%   0.196 344)  #AF2484
     primary-500     oklch(61%   0.198 344)  #CF44A0
     primary-400     oklch(70.5% 0.163 344)  #E472B9
     brand-accent    oklch(52.5% 0.098 190)  #007C77
   The neutrals in the product carry a 330 hue tint, which is
   why --cs-soft here is faintly magenta rather than grey.
   ================================================== */

:root {
  --cs-ink: #0C080C;
  --cs-hero-bg: #0C080C;
  --cs-accent: #CF44A0;
  --cs-accent-text: #AF2484;   /* 5.37:1 on the bone background */
  --cs-support: #E472B9;
  --cs-soft: #F7F2F6;
  --pp-teal: #007C77;
}

/* Hero sits on the product's own ink. */
.cs-hero { color: #FCF9FB; }
.cs-hero-sub { color: rgba(252, 249, 251, 0.72); }
.cs-hero-rail { border-top-color: rgba(252, 249, 251, 0.18); }
.cs-hero-meta dt { color: rgba(252, 249, 251, 0.5); }

/* The product is landscape software; give the cover more room than the
   phone-shaped case studies get. */
.pulse-performance .cs-hero-grid { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); }
@media (max-width: 900px) {
  .pulse-performance .cs-hero-grid { grid-template-columns: 1fr; }
}
.pulse-performance .cs-hero-cover { border: 1px solid rgba(252, 249, 251, 0.12); }

/* --------------------------------------------------
   VIDEO — the walkthrough
-------------------------------------------------- */
.pp-video {
  margin: clamp(32px, 5vh, 56px) 0 0;
  border-radius: 10px;
  overflow: hidden;
  background: var(--cs-ink);
  border: 1px solid var(--cs-line);
  position: relative;
}
.cs-section--ink .pp-video { border-color: var(--cs-line-dark); }
.pp-video video {
  width: 100%;
  height: auto;
  display: block;
}
.pp-video figcaption {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cs-dim-on-ink);
  padding: 14px 18px;
  border-top: 1px solid var(--cs-line-dark);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

/* --------------------------------------------------
   SHOT GRID — screens from the running build
-------------------------------------------------- */
.pp-shots {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
  margin-top: clamp(32px, 5vh, 56px);
}
.pp-shots--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.pp-shots--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 860px) {
  .pp-shots--2, .pp-shots--3 { grid-template-columns: 1fr; }
}
.pp-shot { margin: 0; }
.pp-shot .cs-zoom {
  display: block;
  border: 1px solid var(--cs-line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--cs-soft);
}
.cs-section--ink .pp-shot .cs-zoom {
  border-color: var(--cs-line-dark);
  background: rgba(252, 249, 251, 0.04);
}
.pp-shot img { width: 100%; height: auto; display: block; }
.pp-shot figcaption {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cs-accent-text);
  margin-top: 12px;
}
.cs-section--ink .pp-shot figcaption { color: var(--cs-support); }
.pp-shot p {
  font-size: 14.5px;
  line-height: 1.6;
  margin-top: 6px;
  color: rgba(22, 19, 13, 0.66);
  max-width: 46ch;
}
.cs-section--ink .pp-shot p { color: var(--cs-dim-on-ink); }

/* Mobile captures are portrait — cap them so they don't tower, and let the row
   reflow rather than forcing a column count that breaks at five items. */
.pp-shots--phones {
  grid-template-columns: repeat(auto-fit, minmax(150px, 215px));
  justify-content: start;
  gap: clamp(14px, 1.8vw, 22px);
}
.pp-shots--phones figcaption { font-size: 9.5px; }
/* auto-fit measures against the 215px max, so on a narrow screen it lands on a
   single column and the phones stack five deep. Two-up is the better read. */
@media (max-width: 860px) {
  .pp-shots--phones { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* --------------------------------------------------
   SPEC — the build, in mono
-------------------------------------------------- */
.pp-spec {
  margin-top: clamp(32px, 5vh, 56px);
  border-top: 1px solid var(--cs-line);
}
.cs-section--ink .pp-spec { border-top-color: var(--cs-line-dark); }
.pp-spec > div {
  display: grid;
  grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
  gap: clamp(12px, 3vw, 40px);
  padding: 16px 0;
  border-bottom: 1px solid var(--cs-line);
}
.cs-section--ink .pp-spec > div { border-bottom-color: var(--cs-line-dark); }
@media (max-width: 620px) {
  .pp-spec > div { grid-template-columns: 1fr; gap: 6px; }
}
.pp-spec dt {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cs-accent-text);
  padding-top: 3px;
}
.cs-section--ink .pp-spec dt { color: var(--cs-support); }
.pp-spec dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.65;
}

/* --------------------------------------------------
   MEASURED — verified numbers, not claimed outcomes
-------------------------------------------------- */
.pp-measure {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: clamp(18px, 2.6vw, 32px);
  margin-top: clamp(30px, 4.5vh, 52px);
}
.pp-measure div {
  padding-top: 18px;
  border-top: 2px solid var(--cs-accent);
}
.cs-section--ink .pp-measure div { border-top-color: var(--cs-support); }
.pp-measure .n {
  font-family: var(--mono);
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 500;
  letter-spacing: -0.02em;
  display: block;
  line-height: 1;
}
.pp-measure p {
  font-size: 14px;
  line-height: 1.55;
  margin-top: 10px;
  color: rgba(22, 19, 13, 0.66);
}
.cs-section--ink .pp-measure p { color: var(--cs-dim-on-ink); }

/* --------------------------------------------------
   CODE — the one place a snippet earns its place
-------------------------------------------------- */
.pp-code {
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.85;
  background: rgba(252, 249, 251, 0.05);
  border: 1px solid var(--cs-line-dark);
  border-radius: 8px;
  padding: 20px 22px;
  overflow-x: auto;
  margin-top: 26px;
  color: var(--cs-on-ink);
}
.pp-code .c { color: rgba(252, 249, 251, 0.42); }
.pp-code .k { color: var(--cs-support); }

/* --------------------------------------------------
   NOTE — a caveat that should not read as body copy
-------------------------------------------------- */
.pp-note {
  margin-top: clamp(28px, 4vh, 44px);
  padding: 22px 24px;
  border-left: 2px solid var(--cs-accent);
  background: rgba(207, 68, 160, 0.05);
  border-radius: 0 8px 8px 0;
}
.cs-section--ink .pp-note {
  border-left-color: var(--cs-support);
  background: rgba(252, 249, 251, 0.05);
}
.pp-note p {
  font-size: 15.5px;
  line-height: 1.7;
  margin: 0;
  color: rgba(22, 19, 13, 0.74);
}
.cs-section--ink .pp-note p { color: var(--cs-on-ink); }
.pp-note p + p { margin-top: 12px; }
.pp-note strong { font-weight: 500; color: var(--cs-accent-text); }
.cs-section--ink .pp-note strong { color: var(--cs-support); }

/* --------------------------------------------------
   CTA — go and use the thing
-------------------------------------------------- */
.pp-cta {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.4vw, 28px);
  flex-wrap: wrap;
  margin-top: clamp(32px, 4.5vh, 52px);
}
.pp-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  /* primary-400 rather than the deeper brand magenta: ink type on this tint is
     7.4:1, where the 600 step would only reach 4.2:1 at button size. */
  background: var(--cs-support);
  color: var(--cs-ink);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: 16px 26px;
  border-radius: 999px;
  text-decoration: none;
  transition: transform 0.32s cubic-bezier(0.2, 0, 0, 1), background-color 0.32s ease;
}
.pp-cta-btn:hover,
.pp-cta-btn:focus-visible { background: #F2A0CE; transform: translateY(-2px); }
.pp-cta-btn svg { transition: transform 0.32s cubic-bezier(0.2, 0, 0, 1); }
.pp-cta-btn:hover svg { transform: translate(3px, -3px); }
.pp-cta-url {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: lowercase;
  color: var(--cs-dim-on-ink);
}
@media (prefers-reduced-motion: reduce) {
  .pp-cta-btn, .pp-cta-btn svg { transition: none; }
  .pp-cta-btn:hover { transform: none; }
  .pp-cta-btn:hover svg { transform: none; }
}

/* --------------------------------------------------
   REFERENCES
-------------------------------------------------- */
.pp-refs {
  margin-top: clamp(30px, 4.5vh, 50px);
  padding: 0;
  list-style: none;
  counter-reset: ref;
  border-top: 1px solid var(--cs-line);
}
.cs-section--ink .pp-refs { border-top-color: var(--cs-line-dark); }
/* Deliberately NOT a grid. A reference is a run of loose inline content —
   author text, a <cite>, journal text, a link — and in a grid container each of
   those becomes its own grid item, which drops <cite> into the 34px number
   column and wraps the title one word per line. Indent + absolute marker is
   immune to how many children the markup happens to have. */
.pp-refs li {
  counter-increment: ref;
  position: relative;
  padding: 14px 0 14px 44px;
  border-bottom: 1px solid var(--cs-line);
  font-size: 14px;
  line-height: 1.65;
  max-width: 82ch;
}
.cs-section--ink .pp-refs li { border-bottom-color: var(--cs-line-dark); }
.pp-refs li::before {
  content: "[" counter(ref) "]";
  position: absolute;
  left: 0;
  top: 17px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--cs-accent-text);
}
.cs-section--ink .pp-refs li::before { color: var(--cs-support); }
.pp-refs cite { font-style: italic; font-family: var(--serif); font-weight: 300; }
.pp-refs a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }

/* Inline citation markers in body copy */
.pp-cite {
  font-family: var(--mono);
  font-size: 0.72em;
  vertical-align: super;
  line-height: 0;
  color: var(--cs-accent-text);
  text-decoration: none;
  padding: 0 1px;
}
.cs-section--ink .pp-cite { color: var(--cs-support); }
.pp-cite:hover { text-decoration: underline; }

/* --------------------------------------------------
   SWATCHES — tuned for the magenta-tinted scale
-------------------------------------------------- */
.pulse-performance .cs-swatch .hex { font-family: var(--mono); }