/* ============================================================
   CASE-STUDY TEMPLATE — /template
   A reusable case-study shell. All colour, type, spacing and
   motion values come from the design tokens defined in
   css/project.css (:root). Type sizes are tuned to match the
   homepage (~25px body) and the murals intro (--type-hero).
   Everything is scoped under .template-page so it can't leak
   into the other project pages.
   ============================================================ */

.template-page {
  background: #fff;
  color: var(--color-text-primary);
}

/* Shared narrow container — body text never spans the full width. */
.cs-container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding-inline: clamp(var(--space-xl), 7vw, 7rem);
}

/* Small uppercase teal kicker that opens every section.
   NB: Bootstrap 3 sets html{font-size:10px}, so type is sized in px
   (matching the px-based --type-* tokens) — never rem — or it renders
   half-size. */
.cs-eyebrow {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-text-teal);
  margin: 0 0 var(--space-lg);
}

/* Teal + bold highlight inside copy — same as .hero-blurb .accent
   and .murals-statement strong on the homepage/murals page. */
.template-page .accent {
  color: var(--color-text-teal);
  font-weight: 700;
}


/* ── HERO ─────────────────────────────────────────────────────
   Full black header (matches .prj-header / the murals canvas) so
   the white body panel can lift over it. */
.cs-hero {
  background: var(--color-bg);
  color: #fff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(9rem, 20vh, 14rem) 0 clamp(5rem, 12vh, 8rem);
  text-align: center;
}

.cs-hero .cs-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Per-case-study logo / client mark. Swap the <img> src per project. */
.cs-hero__logo {
  width: 84px;
  height: 84px;
  border-radius: 18px;
  object-fit: cover;
  margin-bottom: var(--space-xl);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
}

/* Exactly the homepage "hi, i'm parul" treatment (.hero-greeting). */
.cs-hero__title {
  font-family: var(--font-heading);
  font-size: var(--type-display);          /* 36px — same as "hi, i'm parul" */
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  color: #fff;
  margin: 0 0 var(--space-md);
  max-width: 24ch;
}

/* Exactly the homepage / murals body-paragraph treatment (.hero-blurb,
   .murals-statement): Karla, --type-hero, regular weight, light on black. */
.cs-hero__summary {
  font-family: var(--font-body);
  font-size: var(--type-hero);
  font-weight: var(--weight-regular);
  line-height: var(--leading-body);
  color: var(--color-text-light);
  max-width: 52ch;
  margin: 0 auto;
}

/* Meta row: Role / Timeline / Team / Platform. */
.cs-hero__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(var(--space-xl), 5vw, 4rem);
  margin-top: clamp(3rem, 7vh, 5rem);
  padding-top: clamp(2rem, 4vh, 3rem);
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.cs-meta__label {
  display: block;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-teal);
  margin-bottom: var(--space-sm);
}

.cs-meta__value {
  display: block;
  font-family: var(--font-body);
  font-size: 19px;
  color: var(--color-text-light);
}

/* Quiet scroll cue at the foot of the hero. */
.cs-hero__cue {
  margin-top: clamp(3rem, 8vh, 5rem);
  width: 28px;
  height: 46px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 15px;
  position: relative;
}
.cs-hero__cue::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 9px;
  width: 3px;
  height: 9px;
  margin-left: -1.5px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.7);
  animation: cs-cue 1.8s var(--ease-standard) infinite;
}
@keyframes cs-cue {
  0%   { opacity: 0; transform: translateY(0); }
  40%  { opacity: 1; }
  100% { opacity: 0; transform: translateY(13px); }
}


/* ── BODY PANEL ───────────────────────────────────────────────
   White panel that pulls up over the dark hero with the same
   lifted-edge shadow used by .project-info, plus rounded top
   corners for an Apple-ish soft edge. */
.cs-body {
  position: relative;
  z-index: 2;
  background: #fff;
  margin-top: -32px;
  border-radius: 32px 32px 0 0;
  box-shadow: 0 -16px 48px rgba(0, 0, 0, 0.25);
  padding-top: clamp(5rem, 11vw, 9rem);
}

/* Generous, even vertical rhythm between sections. */
.cs-section {
  padding-block: clamp(5rem, 11vw, 9rem);
}


/* ── SPLIT LAYOUT — sticky heading left, content right ───────── */
.cs-split .cs-container {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  gap: clamp(var(--space-xl), 8vw, 7rem);
  align-items: start;
}

.cs-split__aside {
  position: sticky;
  top: calc(var(--murals-nav-h) + var(--space-xl));
}

.cs-split__aside .cs-heading {
  margin-top: 0;
}

/* Right column keeps a comfortable measure. */
.cs-split__body {
  max-width: 60ch;
}


/* ── CENTER-STACKED LAYOUT — narrow column, lots of air ──────── */
.cs-center .cs-container {
  max-width: 820px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cs-center .cs-text {
  max-width: 56ch;
}


/* ── HEADINGS & COPY ─────────────────────────────────────────── */
/* Section heading — MD3 Headline Medium, like .murals-section-label. */
.cs-heading {
  font-family: var(--font-heading);
  font-size: var(--type-headline);         /* 28px */
  font-weight: var(--weight-medium);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-title);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-lg);
}

/* Body copy — IDENTICAL to the murals intro / homepage about copy:
   Karla, --type-hero, regular weight, secondary grey, 1.65 leading. */
.cs-text {
  font-family: var(--font-body);
  font-size: var(--type-hero);
  font-weight: var(--weight-regular);
  line-height: var(--leading-body);
  color: var(--color-text-secondary);
  margin: var(--space-md) 0 var(--space-lg);
}
.cs-text:last-child { margin-bottom: 0; }

/* A pulled-out statement line for emphasis. */
.cs-lead {
  font-family: var(--font-heading);
  font-size: var(--type-headline);         /* 28px */
  font-weight: var(--weight-regular);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-lg);
}


/* ── IMAGES — rounded corners like the murals gallery ────────── */
.cs-figure {
  margin: clamp(2.5rem, 6vw, 4rem) 0 0;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  transition: transform 0.4s var(--ease-standard),
              box-shadow 0.4s ease;
}

.cs-figure img {
  display: block;
  width: 100%;
  height: auto;
  margin: 0;
}

/* Subtle lift on hover for inset (non-full-bleed) images. */
.cs-figure:not(.cs-fullbleed):hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.2);
}

/* Supporting text — image captions and metric labels share one readable
   token-based style so they stay consistent across pages. */
.cs-caption,
.cs-metric__label {
  font-family: var(--font-body);
  font-size: var(--type-caption);
  line-height: var(--leading-body);
  letter-spacing: 0.01em;
  color: var(--color-text-secondary);
}

.cs-caption {
  margin: var(--space-md) 0 0;
}

/* Side-by-side pair (stacks on mobile). */
.cs-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-md), 3vw, var(--space-xl));
  margin-top: clamp(2.5rem, 6vw, 4rem);
}
.cs-pair .cs-figure { margin-top: 0; }


/* ── FULL-BLEED PARALLAX BANDS ───────────────────────────────── */
.cs-fullbleed {
  position: relative;
  /* .cs-body is already full viewport width, so 100% bleeds edge to edge
     without the 100vw scrollbar-overflow trap. */
  width: 100%;
  margin: clamp(5rem, 11vw, 9rem) 0;
  height: clamp(360px, 66vh, 720px);
  border-radius: 0;          /* true edge-to-edge — touches both sides */
  box-shadow: none;
}

.cs-fullbleed .cs-parallax__img {
  position: absolute;
  top: -16%;
  left: 0;
  width: 100%;
  height: 132%;              /* taller than the band so parallax never reveals edges */
  object-fit: cover;
  will-change: transform;
}


/* ── METRICS / IMPACT ────────────────────────────────────────── */
.cs-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(var(--space-xl), 5vw, 4rem);
  margin-top: clamp(3rem, 7vw, 5rem);
  width: 100%;
}

.cs-metric {
  text-align: center;
}

.cs-metric__num {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(36px, 4vw, 48px);
  font-weight: var(--weight-semibold);
  line-height: 1;
  color: var(--color-text-teal);
  margin-bottom: var(--space-sm);
}

/* .cs-metric__label styling is shared with .cs-caption above. */


/* ── CLOSING / NEXT PROJECT ──────────────────────────────────── */
.cs-closing {
  text-align: center;
  padding-bottom: clamp(7rem, 14vw, 11rem);
}

.cs-next {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--type-display);          /* 36px */
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-title);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--motion-fast) var(--ease-standard);
}
.cs-next:hover,
.cs-next:focus { color: var(--color-text-teal); }

.cs-next__kicker {
  display: block;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}


/* ── RESPONSIVE ──────────────────────────────────────────────── */
@media (max-width: 767px) {
  .cs-split .cs-container {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  /* The heading shouldn't stick once it's stacked above the copy. */
  .cs-split__aside {
    position: static;
  }
  .cs-pair {
    grid-template-columns: 1fr;
  }
  .cs-metrics {
    grid-template-columns: 1fr;
    gap: clamp(var(--space-xl), 9vw, 3rem);
  }
}

/* Honour reduced-motion: kill the cue + parallax transition feel. */
@media (prefers-reduced-motion: reduce) {
  .cs-hero__cue::after { animation: none; }
  .cs-figure { transition: none; }
  .cs-fullbleed .cs-parallax__img {
    top: 0;
    height: 100%;
  }
}