/* ==========================================================================
   CASE-STUDY.CSS  —  shared by every /case-study/<brand>/default.aspx page
   --------------------------------------------------------------------------
   Layout follows the case-study design boards. Typography uses the site's
   own fonts (loaded by Main.Master): Montserrat for headings/labels, Inter
   for body copy. Everything is scoped under .ibd-cs and every class carries
   a cs- prefix, so nothing here touches the rest of the site and the site's
   global styles (h1/h2 sizes, .section, .hero …) can't leak in.
   ========================================================================== */

.ibd-cs{
  --cs-pink:   #EC008C;
  --cs-text:   #6D6E71;   /* body copy            */
  --cs-strong: #4D4D4F;   /* bold copy, labels    */
  --cs-panel:  #DCDBE0;   /* work-row grey panel  */
  --cs-gap:    6px;       /* white gap between work rows / photo grids */
  --cs-wrap:   1240px;
  --cs-pad:    clamp(2.75rem, 5vw, 4.5rem);
  --cs-head:   "Montserrat", sans-serif;
  --cs-body:   "Inter", sans-serif;

  font-family: var(--cs-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--cs-text);
  background: #fff;
  overflow-x: hidden;
}
.ibd-cs *, .ibd-cs *::before, .ibd-cs *::after{ box-sizing: border-box; }
.ibd-cs p{ margin: 0 0 1rem; color: var(--cs-text); font-size: 1rem; line-height: 1.65; }
.ibd-cs p:last-child{ margin-bottom: 0; }
.ibd-cs strong, .ibd-cs b{ font-weight: 600; color: var(--cs-strong); }
.ibd-cs ul{ margin: 0; padding: 0; list-style: none; }
.ibd-cs img{ display: block; width: 100%; height: auto; max-width: 100%; }
.ibd-cs h1, .ibd-cs h2, .ibd-cs h3, .ibd-cs h4{ margin: 0; text-transform: none; letter-spacing: 0; }

.ibd-cs .cs-wrap{
  max-width: var(--cs-wrap);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}
.ibd-cs .cs-center{ text-align: center; }

/* --------------------------------------------------------------------------
   HERO
   -------------------------------------------------------------------------- */
.ibd-cs .cs-hero{ padding: clamp(2.5rem, 5vw, 4.5rem) 0 clamp(2rem, 4vw, 3.25rem); text-align: center; }
.ibd-cs .cs-brand{
  display: block;
  font-family: var(--cs-head);
  font-weight: 700;
  font-size: clamp(.9rem, .85rem + .25vw, 1.1rem);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--cs-text);
  margin-bottom: .6rem;
}
.ibd-cs h1.cs-title{
  font-family: var(--cs-head);
  font-weight: 700;
  font-size: clamp(1.45rem, .95rem + 1.9vw, 2.45rem);
  line-height: 1.3;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--cs-pink);
  max-width: 1100px;
  margin: 0 auto 1.4rem;
}
.ibd-cs .cs-intro{ max-width: 920px; margin: 0 auto; }
.ibd-cs .cs-intro p{ margin-bottom: .35rem; font-size: 1.05rem; }
.ibd-cs .cs-intro p + p{ margin-top: 0; }
.ibd-cs .cs-intro .cs-gapped{ margin-top: 1rem; }
.ibd-cs .cs-lede{ text-transform: uppercase; letter-spacing: .02em; }

/* --------------------------------------------------------------------------
   FULL-WIDTH PHOTOS
   -------------------------------------------------------------------------- */
.ibd-cs .cs-photo{ margin: 0; }
.ibd-cs .cs-photo-inset{ max-width: 980px; margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 3rem); }

/* --------------------------------------------------------------------------
   LABELS (AT A GLANCE / THE CHALLENGE …)
   -------------------------------------------------------------------------- */
.ibd-cs .cs-label{
  display: block;
  font-family: var(--cs-head);
  font-weight: 700;
  font-size: clamp(.92rem, .88rem + .2vw, 1.05rem);
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--cs-strong);
  margin: 0 0 1rem;
  line-height: 1.3;
}

/* --------------------------------------------------------------------------
   AT A GLANCE
   -------------------------------------------------------------------------- */
.ibd-cs .cs-glance{ padding: var(--cs-pad) 0; }
.ibd-cs .cs-glance-grid{
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.75rem 2rem;
}
.ibd-cs .cs-glance-grid.cs-g3{ grid-template-columns: 1fr 2fr 2fr; }
.ibd-cs .cs-glance-item{ border-left: 2px solid var(--cs-pink); padding-left: 1rem; align-self: start; }
.ibd-cs .cs-glance-item span{ display: block; color: var(--cs-text); line-height: 1.5; }
.ibd-cs .cs-glance-item strong,
.ibd-cs .cs-glance-item li{ display: block; color: var(--cs-strong); font-weight: 600; line-height: 1.55; }
.ibd-cs .cs-glance-item span + strong,
.ibd-cs .cs-glance-item span + ul{ margin-top: .15rem; }
.ibd-cs .cs-glance-item strong + span{ margin-top: 1rem; }

/* --------------------------------------------------------------------------
   SPLIT SECTIONS — label + subline left, copy right of a pink rule
   -------------------------------------------------------------------------- */
.ibd-cs .cs-split{ padding: var(--cs-pad) 0; }
.ibd-cs .cs-split-row{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}
.ibd-cs .cs-sub{ font-size: clamp(1rem, .95rem + .25vw, 1.15rem); color: var(--cs-text); line-height: 1.5; margin: 0; }
.ibd-cs .cs-split-body{ border-left: 2px solid var(--cs-pink); padding-left: clamp(1rem, 1.6vw, 1.4rem); margin-top: 2.35rem; }
.ibd-cs .cs-split-body.cs-norule{ border-left: 0; padding-left: 0; }
.ibd-cs .cs-split-body h4{
  font-family: var(--cs-head);
  font-weight: 700;
  font-size: 1rem;
  color: var(--cs-strong);
  margin: 0 0 .35rem;
  line-height: 1.35;
}
.ibd-cs .cs-split-body .cs-upper{ text-transform: uppercase; }
.ibd-cs .cs-block + .cs-block{ margin-top: 1.5rem; }

.ibd-cs .cs-dash li{ position: relative; padding-left: 1.05rem; margin-bottom: .35rem; }
.ibd-cs .cs-dash li::before{ content: "\2013"; position: absolute; left: 0; color: var(--cs-pink); font-weight: 600; }
.ibd-cs .cs-dash{ margin-bottom: 1rem; }
.ibd-cs .cs-dash:last-child{ margin-bottom: 0; }

.ibd-cs .cs-fromto{ display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }

/* --------------------------------------------------------------------------
   CENTRED STATEMENT (e.g. "The result was a clear brand promise")
   -------------------------------------------------------------------------- */
.ibd-cs .cs-statement{ padding: var(--cs-pad) 0; text-align: center; }
.ibd-cs .cs-statement .cs-label{ margin-bottom: .4rem; }
.ibd-cs .cs-statement p{ max-width: 980px; margin-left: auto; margin-right: auto; }

/* --------------------------------------------------------------------------
   WORK ROWS — 50/50 photo + grey panel, alternating
   -------------------------------------------------------------------------- */
.ibd-cs .cs-work{ display: grid; gap: var(--cs-gap); }
.ibd-cs .cs-work-row{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--cs-gap);
}
.ibd-cs .cs-work-media{ background: var(--cs-panel); overflow: hidden; min-height: 100%; }
.ibd-cs .cs-work-media img{ width: 100%; height: 100%; object-fit: cover; min-height: 260px; }
.ibd-cs .cs-work-media iframe{ display: block; width: 100%; height: 100%; min-height: 360px; border: 0; }
.ibd-cs .cs-work-text{
  background: var(--cs-panel);
  padding: clamp(1.75rem, 4vw, 3.25rem) clamp(1.5rem, 4vw, 3.5rem);
}
.ibd-cs .cs-work-text h3{
  font-family: var(--cs-head);
  font-weight: 700;
  font-size: clamp(.95rem, .9rem + .2vw, 1.05rem);
  color: var(--cs-strong);
  line-height: 1.4;
  margin: 0 0 1rem;
}
.ibd-cs .cs-work-text h3.cs-upper{ text-transform: uppercase; margin-bottom: .35rem; }
.ibd-cs .cs-work-text .cs-phase{ color: var(--cs-text); line-height: 1.5; margin-bottom: 1rem; }
.ibd-cs .cs-work-row.cs-flip .cs-work-media{ order: 2; }
.ibd-cs .cs-work-row.cs-flip .cs-work-text{ order: 1; }
.ibd-cs .cs-work-row.cs-caution .cs-work-media{ display: flex; align-items: center; justify-content: center; background: #FFF4C2; }
.ibd-cs .cs-work-row.cs-caution .cs-work-media img{ object-fit: contain; min-height: 0; height: auto; max-height: 340px; width: auto; max-width: 80%; }

/* --------------------------------------------------------------------------
   PHOTO GRIDS (2-up / 3-up, full width) + phase captions
   -------------------------------------------------------------------------- */
.ibd-cs .cs-grid{ display: grid; gap: var(--cs-gap); }
.ibd-cs .cs-grid-2{ grid-template-columns: repeat(2, 1fr); }
.ibd-cs .cs-grid-3{ grid-template-columns: repeat(3, 1fr); }
.ibd-cs .cs-grid-4{ grid-template-columns: repeat(4, 1fr); }
.ibd-cs .cs-grid img{ width: 100%; height: 100%; object-fit: cover; }

.ibd-cs .cs-phase-row{ display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--cs-gap); }
.ibd-cs .cs-phase-row img{ aspect-ratio: 3 / 2; object-fit: cover; }

.ibd-cs .cs-phase-cap{
  border-left: 2px solid var(--cs-pink);
  margin: 1.75rem clamp(1.25rem, 3vw, 2.5rem) 0;
  padding-left: .9rem;
  line-height: 1.5;
}
.ibd-cs .cs-phase-cap span{ display: block; color: var(--cs-text); }
.ibd-cs .cs-phase-cap strong{ display: block; margin-top: 1rem; }

.ibd-cs .cs-dots{ display: flex; justify-content: center; gap: .6rem; padding: 2.5rem 0; }
.ibd-cs .cs-dots i{ width: 12px; height: 12px; border-radius: 50%; background: #58595B; display: block; }
.ibd-cs .cs-dots i:first-child{ background: var(--cs-pink); }

/* --------------------------------------------------------------------------
   CLOSING
   -------------------------------------------------------------------------- */
.ibd-cs .cs-closing{ padding: clamp(3rem, 6vw, 5rem) 0; text-align: center; }
.ibd-cs .cs-closing .cs-eyebrow{
  display: block;
  font-family: var(--cs-head);
  font-weight: 700;
  font-size: clamp(1rem, .9rem + .45vw, 1.35rem);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--cs-pink);
  margin-bottom: 2rem;
}
.ibd-cs .cs-closing p{
  font-family: var(--cs-head);
  font-weight: 600;
  font-size: clamp(1rem, .9rem + .5vw, 1.35rem);
  line-height: 1.6;
  letter-spacing: .08em;
  color: var(--cs-text);
  max-width: 980px;
  margin: 0 auto 1.75rem;
}
.ibd-cs .cs-closing p:last-child{ margin-bottom: 0; }
.ibd-cs .cs-closing p.cs-caps{ text-transform: uppercase; }
.ibd-cs .cs-closing p.cs-pink{ color: var(--cs-pink); }
.ibd-cs .cs-closing + .cs-grid{ margin-bottom: 0; }

/* --------------------------------------------------------------------------
   SCROLL REVEAL (case-study.js adds .cs-js; without JS everything shows)
   -------------------------------------------------------------------------- */
.ibd-cs.cs-js .cs-rv{ opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s ease; }
.ibd-cs.cs-js .cs-rv.cs-in{ opacity: 1; transform: none; }

/* --------------------------------------------------------------------------
   RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 991.98px){
  .ibd-cs .cs-glance-grid,
  .ibd-cs .cs-glance-grid.cs-g3{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 767.98px){
  .ibd-cs .cs-split-row{ grid-template-columns: 1fr; gap: 1.25rem; }
  .ibd-cs .cs-split-body{ margin-top: 0; }
  .ibd-cs .cs-work-row{ grid-template-columns: 1fr; }
  .ibd-cs .cs-work-row.cs-flip .cs-work-media{ order: 0; }
  .ibd-cs .cs-work-row.cs-flip .cs-work-text{ order: 1; }
  .ibd-cs .cs-work-media iframe{ min-height: 0; aspect-ratio: 16 / 9; height: auto; }
  .ibd-cs .cs-grid-2, .ibd-cs .cs-grid-3, .ibd-cs .cs-phase-row{ grid-template-columns: 1fr; }
  .ibd-cs .cs-grid-4{ grid-template-columns: repeat(2, 1fr); }
  .ibd-cs .cs-phase-cap{ margin-bottom: 1.5rem; }
  .ibd-cs .cs-fromto{ grid-template-columns: 1fr; }
}
@media (max-width: 479.98px){
  .ibd-cs .cs-glance-grid,
  .ibd-cs .cs-glance-grid.cs-g3{ grid-template-columns: 1fr 1fr; gap: 1.5rem 1.25rem; }
}
@media (prefers-reduced-motion: reduce){
  .ibd-cs.cs-js .cs-rv{ opacity: 1; transform: none; transition: none; }
}