/* HearBat case study */

:root {
  --hb-soft:    #ececec;   /* gray panel */
  --hb-soft-2:  #e3e3e3;
  --hb-pro:     #2f7a3a;
  --hb-con:     #b04949;
  --hb-line:    #e0ddd5;
}

.case__back {
  display: block;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--ink-mute);
}
.case__back:hover { color: var(--ink); text-decoration: underline; }

/* ---------- TWO-COLUMN WRAPPER (TOC + content) ---------- */

.case-wrap {
  padding: 32px var(--pad-x) 96px;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 72px;
  align-items: start;
}

@media (max-width: 900px) {
  .case-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ---------- LEFT RAIL (back link + TOC scroll together) ---------- */

.case-rail {
  position: sticky;
  top: 88px;
  align-self: start;
}
@media (max-width: 900px) {
  .case-rail {
    position: static;
    margin-bottom: 16px;
  }
}

/* ---------- TOC WIDGET ---------- */

.toc {
  border: 1px solid var(--ink);
  border-radius: 6px;
  padding: 16px 16px 18px;
  background: #fff;
}

.toc__title {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 12px;
}

.toc__list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: tocnum;
}
.toc__list li {
  counter-increment: tocnum;
  margin: 0;
}
.toc__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 0;
  font-size: 13px;
  color: var(--ink-mute);
  letter-spacing: -.005em;
  transition: color .2s ease;
  border-radius: 3px;
}
.toc__list a::before {
  content: counter(tocnum) ".";
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-mute);
  flex: none;
  width: 14px;
}
.toc__list a:hover { color: var(--ink); }

.toc__list a.is-active {
  color: var(--ink);
  font-weight: 600;
}
.toc__list a.is-active::before {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- MAIN CASE COLUMN ---------- */

.case {
  min-width: 0;        /* allow grid child to shrink */
}

.case__head { margin-bottom: 28px; }

.case__title {
  font-weight: 800;
  font-size: clamp(48px, 6vw, 72px);
  line-height: 1.02;
  letter-spacing: -.03em;
  margin: 0 0 14px;
}

.case__sub {
  font-size: 17px;
  line-height: 1.5;
  color: var(--ink);
  margin: 6px 0 0;
}

.case__cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #d9d9d9;
  border-radius: 18px;
  margin-bottom: 22px;
}

.case__cover--hearbat {
  background-image: url("images/hearbat/thumb.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.case__cover--trimble {
  background-image: url("images/trimble-hero.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* meta strip */

.case__meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 6px 0 0;
  margin: 0 0 32px;
}
.case__meta > div { margin: 0; }
.case__meta dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 8px;
}
.case__meta dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-mute);
}
@media (max-width: 720px) {
  .case__meta { grid-template-columns: 1fr 1fr; gap: 16px; }
}

/* sections */

.case__section {
  padding: 24px 0 8px;
  scroll-margin-top: 80px;
}

.case__kicker {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 14px;
}

.case__h2 {
  font-size: clamp(18px, 1.8vw, 20px);
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -.005em;
  margin: 0 0 12px;
}

.case__body {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ink-mute);
  margin: 0 0 16px;
}

/* ---------- CHALLENGE CALLOUT ---------- */

.callout {
  background: #fff;
  border: 1px solid var(--line, #d1d1d1);
  border-radius: 8px;
  padding: 22px 28px 24px;
  text-align: center;
  margin: 20px 0 6px;
}
.callout__mark {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 10px;
}
.callout p {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-mute);
  margin: 0;
}

/* ---------- COMPARE ---------- */

.compare {
  display: grid;
  grid-template-columns: 240px 1fr 1fr;
  column-gap: 18px;
  row-gap: 18px;
  align-items: stretch;
  margin-top: 10px;
}

.compare__panel + .compare__col {
  margin-left: 28px;
}
@media (max-width: 720px) {
  .compare { grid-template-columns: 1fr; }
}

.compare__panel {
  background: var(--hb-soft);
  border-radius: 6px;
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
}
.compare__label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.compare__logos {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}
.compare__logo {
  font-weight: 800;
  font-size: 13.5px;
  letter-spacing: -.005em;
}
.compare__logo--alt { font-style: italic; font-weight: 700; }

.compare__col {
  padding: 4px 4px;
}
.compare__col h3 {
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: -.005em;
}
.compare__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.compare__list li {
  font-size: 13px;
  line-height: 1.5;
  padding-left: 20px;
  position: relative;
  color: var(--ink);
}
.compare__list--pro li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 0;
  color: var(--hb-pro);
  font-weight: 700;
}
.compare__list--con li::before {
  content: "✕";
  position: absolute;
  left: 0; top: 0;
  color: var(--hb-con);
  font-weight: 700;
}

/* ---------- OPPORTUNITY CARDS ---------- */

.opps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 14px;
}
@media (max-width: 600px) {
  .opps { grid-template-columns: 1fr; }
}

.opp {
  background: var(--hb-soft);
  border-radius: 8px;
  padding: 18px 20px 20px;
}
.opp h3 {
  font-size: 14.5px;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -.005em;
}
.opp p {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ink-mute);
  margin: 0;
}

.opps--stack {
  display: flex;
  flex-direction: column;
  grid-template-columns: none;
  gap: 64px;
  margin-top: 56px;
}

.opp--row {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(220px, 280px) 1fr;
  gap: 48px;
  align-items: start;
}

.opp--row .opp__copy {
  position: static;
}

.opp__num {
  font-weight: 700;
  color: var(--ink);
  margin-right: 2px;
}

.opp--row h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: -.005em;
  color: var(--ink-mute);
}
.opp--row .opp__copy p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-mute);
  margin: 0;
}

.opp__screens {
  margin-top: 0;
  display: flex;
  flex-wrap: nowrap;
  gap: 16px;
  align-items: flex-start;
  justify-content: flex-start;
  min-width: 0;
}

.opp__screens img {
  flex: 1 1 0;
  min-width: 0;
  width: 100%;
  max-width: 220px;
  height: auto;
  display: block;
}

@media (max-width: 900px) {
  .opp--row {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .opp--row .opp__copy { position: static; }
  .opp__screens { justify-content: center; }
}

@media (max-width: 600px) {
  .opp__screens {
    flex-wrap: wrap;
  }
  .opp__screens img {
    flex: 0 1 calc(50% - 8px);
    max-width: none;
  }
}

/* ---------- SOLUTION / FINAL SCREENS MEDIA ---------- */

.solution__media,
.screens__media {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #d9d9d9;
  border-radius: 6px;
  margin: 18px 0 24px;
}

/* ---------- CAROUSEL ---------- */

.carousel {
  position: relative;
  margin: 18px auto 24px;
  max-width: 360px;
}

.carousel__viewport {
  width: 220px;
  margin: 0 auto;
  overflow: hidden;
  background: transparent;
  border-radius: 0;
}

.carousel__track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  width: 100%;
  transition: transform .45s cubic-bezier(.22,.61,.36,1);
  will-change: transform;
}

.carousel__slide {
  flex: 0 0 100%;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.carousel__slide img {
  width: 100%;
  height: auto;
  display: block;
}

.carousel__placeholder {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--hb-line);
  color: var(--ink);
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
  transition: background .15s ease, transform .15s ease, opacity .15s ease;
}

.carousel__btn:hover {
  background: var(--ink);
  color: #fff;
}

.carousel__btn--prev { left: 0; }
.carousel__btn--next { right: 0; }

.carousel__dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
}

.carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--hb-line);
  border: 0;
  padding: 0;
  cursor: pointer;
  transition: background .15s ease, transform .15s ease;
}

.carousel__dot.is-active {
  background: var(--ink);
  transform: scale(1.2);
}

@media (max-width: 520px) {
  .carousel { max-width: 300px; }
  .carousel__btn { width: 34px; height: 34px; }
}

/* ---------- REFLECTION CARDS ---------- */

.reflect {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}
@media (max-width: 720px) {
  .reflect { grid-template-columns: 1fr; }
}

.reflect__card {
  background: #fff;
  border: 1px solid var(--line, #d1d1d1);
  border-radius: 8px;
  padding: 18px 20px 20px;
}
.reflect__kicker {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 8px;
}
.reflect__card p:last-child {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
  margin: 0;
}