/* ==========================================================================
   SIGMA BROOKS - Case studies (home section 06, /case-studies/)
   Filters use js/sigma.js ([data-case-filters], [data-case-grid], [data-sectors]).
   Copy rule: no em-dashes.
   ========================================================================== */

.sbcs {
  --cs-wrap: 1760px;
  --cs-navy: #071C33;
  --cs-deep: #0A1F38;
  --cs-orange: #FF851B;
  --cs-blue: #1473E6;
  --cs-blue-ink: #0B5CC4;       /* link blue with AA contrast on white */
  --cs-text: #58687A;
  --cs-line: #E3EAF1;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: 88px 0 96px;
  background: #F7F9FC;
  color: var(--cs-navy);
}
.sbcs [hidden] { display: none !important; }

/* ---------- decoration ---------- */
.sbcs-dots { position: absolute; top: 96px; right: 14%; width: 26%; height: 170px; z-index: -1; pointer-events: none;
  background: radial-gradient(circle, rgba(20, 115, 230, .2) 1px, transparent 1.6px) 0 0 / 26px 26px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 35%, #000 65%, transparent); mask-image: linear-gradient(90deg, transparent, #000 35%, #000 65%, transparent); }
.sbcs-globe { position: absolute; top: 0; right: 0; width: min(24%, 420px); height: auto; z-index: -1; pointer-events: none; }
.sbcs-dots--l { left: 0; }

/* ---------- header ---------- */
.sbcs-inner { max-width: var(--cs-wrap); margin-inline: auto; padding-inline: var(--sb-gutter); }
.sbcs-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 24px 48px; }
.sbcs-eyebrow { display: flex; align-items: center; gap: 18px; margin-bottom: 20px; font: 600 .8125rem/1 var(--sb-font-mono); letter-spacing: .18em; text-transform: uppercase; color: #3C4A5E; }
.sbcs-eyebrow span { width: 50px; height: 3px; border-radius: 2px; background: var(--cs-orange); }
.sbcs-title { font-family: var(--sb-font-heading); font-stretch: 108%; font-weight: 800; font-size: clamp(2.5rem, 4.4vw, 4.5rem); line-height: 1.04; letter-spacing: -.035em; color: var(--cs-navy); }
.sbcs-title strong { font-weight: 800; color: var(--cs-orange); }
.sbcs-lede { margin-top: 18px; font-size: clamp(1.0625rem, 1.35vw, 1.3125rem); line-height: 1.5; color: var(--cs-text); }
.sbcs-all { text-align: right; padding-bottom: 6px; }
.sbcs-all__link { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; font-size: 1.1875rem; color: var(--cs-blue-ink); text-decoration: none; }
.sbcs-all__link i { transition: transform .22s; }
.sbcs-all__link:hover i { transform: translateX(4px); }
.sbcs-all p { margin-top: 8px; font-size: .9375rem; color: var(--cs-text); }

/* ---------- filters ---------- */
.sbcs-filters { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 34px; }
.sbcs-filter { min-height: 46px; padding: 0 20px; border-radius: 10px; border: 1px solid #D8E1EB; background: #FFFFFF; font: 500 1.0625rem/1 var(--sb-font-body); color: #3C4A5E; cursor: pointer; transition: border-color .2s, background-color .2s, color .2s; }
.sbcs-filter:hover { border-color: #9FB5CC; color: var(--cs-navy); }
.sbcs-filter[aria-pressed="true"] { background: var(--cs-navy); border-color: var(--cs-navy); color: #FFFFFF; font-weight: 600; }
.sbcs-filter:focus-visible { outline: 3px solid var(--cs-blue); outline-offset: 3px; }

/* ---------- cards ---------- */
.sbcs-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; }
.sbcs-card { display: flex; flex-direction: column; overflow: hidden; border-radius: 16px; background: #FFFFFF; border: 1px solid var(--cs-line); box-shadow: 0 1px 2px rgba(7, 28, 51, .03), 0 26px 48px -38px rgba(7, 28, 51, .35); color: inherit; text-decoration: none; transition: transform .22s, box-shadow .22s, border-color .22s; }
.sbcs-card:hover { transform: translateY(-4px); border-color: #D3DCE6; box-shadow: 0 1px 2px rgba(7, 28, 51, .04), 0 34px 56px -36px rgba(7, 28, 51, .45); }
.sbcs-card:focus-visible { outline: 3px solid var(--cs-blue); outline-offset: 4px; }

.sbcs-card__top { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 176px; padding: 30px 30px 26px; overflow: hidden;
  background: radial-gradient(120% 140% at 85% 20%, rgba(20, 115, 230, .2), transparent 55%), linear-gradient(160deg, #0B2340 0%, var(--cs-navy) 100%); color: #FFFFFF; }
.sbcs-card__stat { position: relative; z-index: 1; min-width: 0; }
.sbcs-tag { font: 600 .875rem/1 var(--sb-font-mono); letter-spacing: .12em; text-transform: uppercase; color: #4B9BFF; }
.sbcs-tag span { margin: 0 .35em; color: #7FA7D8; }
.sbcs-metric { margin: 16px 0 10px; font-family: var(--sb-font-heading); font-stretch: 104%; font-weight: 800; font-size: clamp(2.5rem, 3.6vw, 3.625rem); line-height: 1; letter-spacing: -.02em; color: var(--cs-orange); white-space: nowrap; }
.sbcs-caption { font-size: 1.0625rem; color: #E6EDF5; }
.sbcs-art { width: 44%; max-width: 210px; height: auto; flex-shrink: 0; opacity: .95; transition: transform .4s; }
.sbcs-card:hover .sbcs-art { transform: translateY(-3px); }

.sbcs-card__body { display: flex; flex-direction: column; flex: 1; padding: 28px 30px 26px; }
.sbcs-card__title { font-family: var(--sb-font-heading); font-stretch: 100%; font-weight: 700; font-size: clamp(1.375rem, 1.6vw, 1.625rem); line-height: 1.2; letter-spacing: -.015em; color: var(--cs-navy); }
.sbcs-card__text { margin-top: 12px; font-size: 1.0625rem; line-height: 1.55; color: var(--cs-text); }
.sbcs-caps { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 0; margin: 20px 0 0; padding: 0; list-style: none; }
.sbcs-caps li { display: inline-flex; align-items: center; gap: 10px; padding: 0 18px; font-size: 1rem; color: #33445A; white-space: nowrap; }
.sbcs-caps li:first-child { padding-left: 0; }
.sbcs-caps li + li { border-left: 1px solid #D8E1EB; }
.sbcs-caps i { font-size: 1.0625rem; color: var(--cs-blue); }
.sbcs-card__foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: auto; padding-top: 28px; }
.sbcs-read { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.125rem; color: var(--cs-blue-ink); }
.sbcs-read i, .sbcs-go i { transition: transform .22s; }
.sbcs-go { display: inline-flex; align-items: center; justify-content: center; width: 50px; height: 50px; border-radius: 50%; background: #EEF4FC; color: var(--cs-blue-ink); flex-shrink: 0; transition: background-color .22s, color .22s; }
.sbcs-card:hover .sbcs-read i, .sbcs-card:hover .sbcs-go i { transform: translateX(3px); }
.sbcs-card:hover .sbcs-go { background: var(--cs-blue-ink); color: #FFFFFF; }

.sbcs-empty { grid-column: 1 / -1; padding: 40px 24px; border-radius: 16px; border: 1px dashed #C9D5E2; background: #FFFFFF; text-align: center; font-size: 1.0625rem; color: var(--cs-text); }
.sbcs-empty a { color: var(--cs-blue-ink); font-weight: 700; }

/* ---------- responsive ---------- */
@media (max-width: 1400px) {
  .sbcs-grid { gap: 22px; }
  .sbcs-card__top, .sbcs-card__body { padding-inline: 24px; }
  .sbcs-caps li { padding: 0 12px; font-size: .9375rem; }
}
@media (max-width: 1200px) {
  .sbcs-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .sbcs-head { grid-template-columns: 1fr; }
  .sbcs-all { text-align: left; }
}
@media (max-width: 767px) {
  .sbcs { padding: 64px 0 64px; }
  .sbcs-eyebrow { font-size: .6875rem; gap: 12px; }
  .sbcs-filters { gap: 10px; margin: 24px 0 26px; }
  .sbcs-filter { min-height: 44px; padding: 0 16px; font-size: 1rem; }
  .sbcs-grid { grid-template-columns: 1fr; gap: 18px; }
  .sbcs-card__top { min-height: 150px; padding: 24px 20px 20px; }
  .sbcs-card__body { padding: 22px 20px 20px; }
  .sbcs-art { width: 38%; }
  .sbcs-caps li { white-space: normal; }
  .sbcs-dots, .sbcs-globe { opacity: .5; }
}

@media (prefers-reduced-motion: reduce) {
  .sbcs-card, .sbcs-art, .sbcs-read i, .sbcs-go i, .sbcs-all__link i { transition: none; }
  .sbcs-card:hover, .sbcs-card:hover .sbcs-art { transform: none; }
}

/* fit: metric scales with the card's own width; capability row stays on one line on desktop */
.sbcs-card { container-type: inline-size; }
.sbcs-card__stat { flex: 1 1 auto; }
.sbcs-art { width: 36%; }
.sbcs-metric { font-size: clamp(2.125rem, 10.5cqw, 3.625rem); }
.sbcs-caps li { padding: 0 clamp(8px, 2.4cqw, 18px); font-size: clamp(.875rem, 2.9cqw, 1rem); gap: 8px; }
.sbcs-caps li:first-child { padding-left: 0; }
@media (max-width: 767px) {
  .sbcs-caps { gap: 10px 0; }
  .sbcs-caps li { padding: 0 12px; }
}
@container (max-width: 470px) {
  .sbcs-caps { gap: 10px 20px; }
  .sbcs-caps li, .sbcs-caps li:first-child { padding: 0; border-left: 0 !important; }
}