/* Case study detail page — uses tokens.css, shared.css, editorial.css */

body.theme-case {
  background: var(--paper);
  color: var(--ink);
}

/* ---------- Hero band (tinted) ---------- */
.cs-hero {
  padding: clamp(140px, 22vh, 240px) var(--gutter) clamp(60px, 8vw, 100px);
  background: var(--cs-tint, var(--pastel-green));
  position: relative;
  overflow: hidden;
}
.cs-hero__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
  gap: clamp(32px, 5vw, 80px);
  align-items: end;
}
.cs-hero__back {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 36px;
}
.cs-hero__back:hover { color: var(--orange); }
.cs-hero__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 14px;
}
.cs-hero__title {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(40px, 7vw, 112px);
  line-height: 0.95;
  letter-spacing: -0.035em;
  max-width: 16ch;
  text-wrap: balance;
  margin-bottom: 24px;
}
.cs-hero__title .serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--orange);
}
.cs-hero__desc {
  font-size: clamp(16px, 1.4vw, 20px);
  color: var(--ink-soft);
  max-width: 56ch;
}

/* Info side card */
.cs-info {
  background: color-mix(in oklab, var(--paper) 70%, transparent);
  backdrop-filter: blur(8px);
  padding: clamp(20px, 2vw, 32px);
  border-radius: var(--rad-lg);
  border: 1px solid color-mix(in oklab, var(--ink) 8%, transparent);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.cs-info__row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed color-mix(in oklab, var(--ink) 12%, transparent);
}
.cs-info__row:last-child { border-bottom: 0; }
.cs-info__label { color: var(--ink-mid); }
.cs-info__val   { color: var(--ink); }
@media (max-width: 880px) {
  .cs-hero__inner { grid-template-columns: 1fr; }
}

/* ---------- Hero image strip ---------- */
.cs-hero-img {
  max-width: var(--max-w);
  margin: calc(clamp(60px, 8vw, 100px) * -0.4) auto 0;
  padding: 0 var(--gutter);
}
.cs-hero-img img {
  width: 100%;
  border-radius: var(--rad-xl);
  display: block;
  box-shadow: 0 30px 80px rgba(0,0,0,0.10);
}

/* ======================================================================
   DEVICE SHOWCASE — browser frame + phone bezel with auto-scrolling images
   ====================================================================== */
.cs-mockups {
  max-width: var(--max-w);
  margin: clamp(60px, 8vw, 100px) auto 0;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(0, 2.2fr);
  gap: clamp(20px, 3vw, 64px);
  align-items: start;
  justify-content: center;
}
.cs-mockups--single {
  grid-template-columns: minmax(0, 1fr);
  max-width: 900px;
}
/* Slimmer phone variant — also caps max width so it sits proportionally */
.cs-phone {
  width: 100%;
  max-width: 280px;
  justify-self: center;
  margin-inline: auto;
}

/* ---------- Event video frame — alternative to .cs-browser ----------
   Used when a project has a live-event video instead of a website. */
.cs-event {
  border-radius: var(--rad-lg);
  overflow: hidden;
  box-shadow: 0 28px 80px rgba(0,0,0,0.18), 0 6px 18px rgba(0,0,0,0.10);
  border: 1px solid color-mix(in oklab, var(--ink) 10%, transparent);
  background: #0A0A0A;
}
.cs-event__chrome {
  height: 38px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 16px;
  background: #0A0A0A;
  color: #F5F4F0;
  border-bottom: 1px solid color-mix(in oklab, #FFFFFF 8%, transparent);
}
.cs-event__live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #FF3D00;
}
.cs-event__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #FF3D00;
  animation: cs-event-pulse 1.4s ease-in-out infinite;
}
@keyframes cs-event-pulse {
  0%, 100% { opacity: 0.35; transform: scale(0.8); }
  50%      { opacity: 1;    transform: scale(1); }
}
.cs-event__caption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: color-mix(in oklab, #F5F4F0 70%, transparent);
}
.cs-event__video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  background: #000;
}
.cs-event__viewport {
  position: relative;
  background: #000;
  aspect-ratio: 9/16; /* matches the source portrait phone footage */
  overflow: hidden;
}
/* On portrait-pair layouts, both sides are roughly phone-shaped */
.cs-mockups--portrait-pair {
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(24px, 3vw, 56px);
  max-width: 880px;
  align-items: center;
}
.cs-mockups--portrait-pair .cs-event { width: 100%; max-width: 420px; margin-inline: auto; }
.cs-mockups--portrait-pair .cs-phone { max-width: 320px; }

/* Browser window mockup */
.cs-browser {
  border-radius: var(--rad-lg);
  overflow: hidden;
  box-shadow: 0 28px 80px rgba(0,0,0,0.10), 0 6px 18px rgba(0,0,0,0.06);
  border: 1px solid color-mix(in oklab, var(--ink) 10%, transparent);
  background: var(--paper);
}
.cs-browser__chrome {
  height: 38px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  background: color-mix(in oklab, var(--ink) 5%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--ink) 8%, transparent);
}
.cs-browser__chrome .dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: color-mix(in oklab, var(--ink) 18%, transparent);
}
.cs-browser__chrome .dot--r { background: #FF5F57; }
.cs-browser__chrome .dot--y { background: #FEBC2E; }
.cs-browser__chrome .dot--g { background: #28C840; }
.cs-browser__url {
  margin-left: auto;
  margin-right: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 5px 14px;
  background: var(--paper);
  border: 1px solid color-mix(in oklab, var(--ink) 8%, transparent);
  border-radius: 999px;
  color: var(--ink-mid);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.cs-browser__url::before {
  content: "🔒";
  font-size: 9px;
  opacity: 0.5;
}
.cs-browser__viewport {
  aspect-ratio: 16/10;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
  background: var(--paper-2);
  scrollbar-width: none;
  scroll-behavior: smooth;
  /* iOS momentum scroll */
  -webkit-overflow-scrolling: touch;
}
.cs-browser__viewport::-webkit-scrollbar,
.cs-phone__viewport::-webkit-scrollbar { display: none; }
.cs-mockup-img {
  width: 100%;
  height: auto;
  display: block;
}
/* "Scroll inside" hint pill — fades out once user starts interacting */
.cs-browser, .cs-phone { position: relative; }
.cs-mockup-hint {
  position: absolute;
  top: 12px; right: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--paper) 95%, transparent);
  color: var(--ink-soft);
  border: 1px solid color-mix(in oklab, var(--ink) 10%, transparent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  pointer-events: none;
  z-index: 3;
  transition: opacity 280ms var(--ease-out-expo);
  opacity: 0;
}
.cs-mockups:hover .cs-mockup-hint { opacity: 0.9; }
.cs-mockup-hint--phone {
  top: 18px;
  background: color-mix(in oklab, #0A0A0A 85%, transparent);
  color: #F5F4F0;
  border-color: color-mix(in oklab, #FFFFFF 15%, transparent);
}

/* Phone mockup */
.cs-phone {
  border-radius: 38px;
  background: #0A0A0A;
  padding: 12px;
  box-shadow: 0 28px 80px rgba(0,0,0,0.15), 0 8px 18px rgba(0,0,0,0.08);
  position: relative;
}
.cs-phone::before {
  /* Subtle "notch" pill */
  content: "";
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 18px;
  background: #0A0A0A;
  border-radius: 999px;
  z-index: 2;
}
.cs-phone__viewport {
  border-radius: 26px;
  overflow-y: auto;
  overflow-x: hidden;
  aspect-ratio: 9/19.5;
  position: relative;
  background: var(--paper-2);
  scrollbar-width: none;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

/* ---------- Slideshow variant — cycles through flow-*.jpg as a "video" ----- */
.cs-phone__viewport--slideshow {
  overflow: hidden;        /* slideshow doesn't need user scroll */
}
.cs-flow-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  opacity: 0;
  animation: cs-flow-cycle var(--cycle-dur, 21s) infinite;
}
@keyframes cs-flow-cycle {
  0%, 100% { opacity: 0; }
  3%       { opacity: 1; }
  12%      { opacity: 1; }
  15%      { opacity: 0; }
}
/* Step delays so each frame appears in sequence */
.cs-flow-frame:nth-child(1)  { animation-delay: calc(var(--cycle-dur, 21s) * 0/7); }
.cs-flow-frame:nth-child(2)  { animation-delay: calc(var(--cycle-dur, 21s) * 1/7); }
.cs-flow-frame:nth-child(3)  { animation-delay: calc(var(--cycle-dur, 21s) * 2/7); }
.cs-flow-frame:nth-child(4)  { animation-delay: calc(var(--cycle-dur, 21s) * 3/7); }
.cs-flow-frame:nth-child(5)  { animation-delay: calc(var(--cycle-dur, 21s) * 4/7); }
.cs-flow-frame:nth-child(6)  { animation-delay: calc(var(--cycle-dur, 21s) * 5/7); }
.cs-flow-frame:nth-child(7)  { animation-delay: calc(var(--cycle-dur, 21s) * 6/7); }
.cs-flow-frame:nth-child(8)  { animation-delay: calc(var(--cycle-dur, 21s) * 7/7); }

/* Step indicator dots under the phone */
.cs-flow-dots {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 2;
}
.cs-flow-dots > i {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: color-mix(in oklab, #FFFFFF 40%, transparent);
  animation: cs-flow-dot var(--cycle-dur, 21s) infinite;
}
@keyframes cs-flow-dot {
  0%, 100%  { background: color-mix(in oklab, #FFFFFF 30%, transparent); }
  3%, 12%   { background: var(--orange); transform: scale(1.4); }
}
.cs-flow-dots > i:nth-child(1) { animation-delay: calc(var(--cycle-dur, 21s) * 0/7); }
.cs-flow-dots > i:nth-child(2) { animation-delay: calc(var(--cycle-dur, 21s) * 1/7); }
.cs-flow-dots > i:nth-child(3) { animation-delay: calc(var(--cycle-dur, 21s) * 2/7); }
.cs-flow-dots > i:nth-child(4) { animation-delay: calc(var(--cycle-dur, 21s) * 3/7); }
.cs-flow-dots > i:nth-child(5) { animation-delay: calc(var(--cycle-dur, 21s) * 4/7); }
.cs-flow-dots > i:nth-child(6) { animation-delay: calc(var(--cycle-dur, 21s) * 5/7); }
.cs-flow-dots > i:nth-child(7) { animation-delay: calc(var(--cycle-dur, 21s) * 6/7); }

/* When slideshow is used, hint pill says "Watch the flow" */
.cs-mockup-hint--flow { opacity: 0.9 !important; }

@media (max-width: 880px) {
  .cs-mockups { grid-template-columns: 1fr; }
  .cs-phone { max-width: 320px; margin: 0 auto; }
}

@media (prefers-reduced-motion: reduce) {
  .cs-browser__viewport .cs-mockup-img,
  .cs-phone__viewport .cs-mockup-img { animation: none; }
}

/* ---------- Metrics strip ---------- */
.cs-metrics {
  max-width: var(--max-w);
  margin: clamp(60px, 8vw, 96px) auto 0;
  padding: 0 var(--gutter);
}
.cs-metrics__row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 48px);
  padding-block: clamp(28px, 3vw, 48px);
  border-top: 1px solid color-mix(in oklab, var(--ink) 14%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--ink) 14%, transparent);
}
.cs-metric { display: flex; flex-direction: column; gap: 6px; }
.cs-metric__num {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(40px, 6vw, 84px);
  letter-spacing: -0.035em;
  line-height: 1;
}
.cs-metric__num .unit {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--orange);
  font-size: 0.6em;
}
.cs-metric__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mid);
}
@media (max-width: 720px) {
  .cs-metrics__row { grid-template-columns: 1fr; gap: 20px; }
}

/* ---------- Body content ---------- */
.cs-body {
  max-width: 800px;
  margin: clamp(60px, 10vw, 120px) auto;
  padding: 0 var(--gutter);
  font-size: clamp(16px, 1.2vw, 19px);
  line-height: 1.65;
  color: var(--ink-soft);
}
.cs-body h2 {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(28px, 3vw, 44px);
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--ink);
  margin: clamp(40px, 5vw, 64px) 0 16px;
}
.cs-body h3 {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(20px, 1.8vw, 26px);
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 36px 0 12px;
}
.cs-body p { margin-bottom: 16px; }
.cs-body p + p { margin-top: 0; }
.cs-body strong { color: var(--ink); font-weight: 600; }
.cs-body ul, .cs-body ol {
  padding-left: 24px;
  margin-bottom: 20px;
  list-style: disc;
}
.cs-body ol { list-style: decimal; }
.cs-body li { margin-bottom: 10px; }
.cs-body li p { margin: 0; }
.cs-body img {
  width: 100%;
  border-radius: var(--rad-md);
  margin: 32px 0;
  display: block;
}
.cs-body a { color: var(--orange); text-decoration: underline; text-underline-offset: 4px; }

/* ---------- Gallery ---------- */
.cs-gallery {
  max-width: var(--max-w);
  margin: clamp(60px, 8vw, 120px) auto;
  padding: 0 var(--gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(20px, 3vw, 48px);
}
.cs-gallery__item {
  width: 100%;
  border-radius: var(--rad-lg);
  overflow: hidden;
  background: var(--paper-2);
  box-shadow: 0 18px 50px rgba(0,0,0,0.06);
  border: 1px solid color-mix(in oklab, var(--ink) 8%, transparent);
}
.cs-gallery__item--wide   { max-width: 1100px; }
.cs-gallery__item--narrow { max-width: 380px; }
.cs-gallery img { width: 100%; height: auto; display: block; }

/* ---------- Prev / Next nav ---------- */
.cs-nav {
  max-width: var(--max-w);
  margin: clamp(80px, 12vw, 140px) auto 0;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 3vw, 48px);
  border-top: 1px solid color-mix(in oklab, var(--ink) 12%, transparent);
  padding-top: 40px;
}
.cs-nav__link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 0;
  transition: opacity 200ms;
}
.cs-nav__link:hover { opacity: 1; }
.cs-nav__link[aria-disabled="true"] {
  opacity: 0.35;
  pointer-events: none;
}
.cs-nav__link--next { text-align: right; }
.cs-nav__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mid);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.cs-nav__link--next .cs-nav__eyebrow { justify-content: flex-end; }
.cs-nav__title {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(22px, 2.4vw, 32px);
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.cs-nav__title .serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--orange);
}
@media (max-width: 720px) {
  .cs-nav { grid-template-columns: 1fr; }
  .cs-nav__link--next { text-align: left; }
  .cs-nav__link--next .cs-nav__eyebrow { justify-content: flex-start; }
}

/* ---------- Inline CTA before footer ---------- */
.cs-cta {
  max-width: var(--max-w);
  margin: clamp(60px, 8vw, 100px) auto 0;
  padding: 0 var(--gutter);
}
.cs-cta__inner {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(40px, 6vw, 80px);
  border-radius: var(--rad-xl);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 32px;
  position: relative;
  overflow: hidden;
}
.cs-cta__inner::before {
  content: "";
  position: absolute;
  inset: -20%;
  background: radial-gradient(ellipse at 80% 30%, color-mix(in oklab, var(--magenta) 55%, transparent), transparent 55%);
  filter: blur(6px);
  z-index: 0;
}
.cs-cta__title {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(28px, 3.4vw, 48px);
  letter-spacing: -0.025em;
  line-height: 1.05;
  max-width: 22ch;
  position: relative;
  z-index: 1;
}
.cs-cta__title .serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--orange);
}
.cs-cta .btn { position: relative; z-index: 1; }
@media (max-width: 720px) {
  .cs-cta__inner { grid-template-columns: 1fr; }
}