/* ============================================
   CASE STUDIES PAGE — Redesign
   ============================================ */

/* --- Custom Properties --- */
:root {
  --cs-dark: #1a1a2e;
  --cs-orange: #ea6425;
  --cs-gray-50: #f9fafb;
  --cs-gray-100: #f3f4f6;
  --cs-gray-200: #e5e7eb;
  --cs-gray-600: #4b5563;
  --cs-gray-900: #111827;
}

/* --- Hero Section --- */
.cs-hero {
  background: var(--cs-dark);
  padding: 140px 0 80px;
  scroll-margin-top: 100px;
}

.cs-hero__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.cs-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  font-family: "Poppins", sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.5);
}

.cs-hero__breadcrumb a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color 0.2s ease;
}

.cs-hero__breadcrumb a:hover {
  color: var(--cs-orange);
}

.cs-hero__breadcrumb span.cs-hero__breadcrumb-sep {
  color: rgba(255, 255, 255, 0.3);
  user-select: none;
}

.cs-hero__breadcrumb span.cs-hero__breadcrumb-current {
  color: rgba(255, 255, 255, 0.8);
}

.cs-hero__title {
  font-family: "Poppins", sans-serif;
  font-size: 48px;
  font-weight: 700;
  line-height: 1.15;
  color: #fff;
  margin: 0 0 20px;
  letter-spacing: -1px;
}

.cs-hero__subtitle {
  font-family: "Poppins", sans-serif;
  font-size: 18px;
  font-weight: 400;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
  max-width: 720px;
  margin: 0 0 24px;
}

.cs-hero__badge {
  display: inline-block;
  font-family: "Poppins", sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  background: var(--cs-orange);
  padding: 6px 20px;
  border-radius: 100px;
  margin-top: 8px;
}

/* --- Brand Slider Section --- */
.cs-brand-slider {
  padding: 40px 0;
  background: #fff;
  border-bottom: 1px solid var(--cs-gray-200);
  scroll-margin-top: 100px;
}

/* --- Category Filter Bar --- */
.cs-filters {
  background: #fff;
  padding: 32px 0;
  border-bottom: 1px solid var(--cs-gray-200);
  position: sticky;
  top: 72px;
  z-index: 50;
  scroll-margin-top: 100px;
}

.cs-filters__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.cs-filters__row {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 4px;
}

.cs-filters__row::-webkit-scrollbar {
  display: none;
}

.cs-filters__pill {
  flex-shrink: 0;
  font-family: "Poppins", sans-serif;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 22px;
  border-radius: 100px;
  border: 1.5px solid var(--cs-gray-200);
  background: var(--cs-gray-100);
  color: var(--cs-gray-600);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  outline: none;
}

.cs-filters__pill:hover {
  border-color: var(--cs-orange);
  color: var(--cs-orange);
}

.cs-filters__pill--active {
  background: var(--cs-orange);
  color: #fff;
  border-color: var(--cs-orange);
}

.cs-filters__pill--active:hover {
  background: #d4561e;
  color: #fff;
  border-color: #d4561e;
}

/* --- Case Studies Grid --- */
.cs-grid {
  background: #fff;
  padding: 60px 0 80px;
  scroll-margin-top: 100px;
}

.cs-grid__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.cs-grid__heading {
  font-family: "Poppins", sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--cs-gray-900);
  margin: 0 0 40px;
  letter-spacing: -0.5px;
}

.cs-grid__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.cs-grid__empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  font-family: "Poppins", sans-serif;
  font-size: 16px;
  color: var(--cs-gray-600);
}

/* --- Card --- */
.cs-card {
  background: #fff;
  border: 1px solid var(--cs-gray-200);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.cs-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.cs-card a {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.cs-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.cs-card__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.cs-card__category {
  display: inline-block;
  font-family: "Poppins", sans-serif;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--cs-orange);
  border: 1.5px solid var(--cs-orange);
  padding: 3px 12px;
  border-radius: 100px;
  margin-bottom: 12px;
  width: fit-content;
}

.cs-card__title {
  font-family: "Poppins", sans-serif;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--cs-dark);
  margin: 0 0 12px;
}

.cs-card__excerpt {
  font-family: "Poppins", sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--cs-gray-600);
  margin: 0 0 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.cs-card__link {
  font-family: "Poppins", sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--cs-orange);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease;
  margin-top: auto;
}

.cs-card:hover .cs-card__link {
  gap: 8px;
}

/* --- Individual Case Study View --- */
.cs-detail {
  background: #fff;
  padding: 60px 0 80px;
  scroll-margin-top: 100px;
}

.cs-detail__inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

.cs-detail__image {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: 16px;
  display: block;
  margin-bottom: 40px;
}

.cs-detail__title {
  font-family: "Poppins", sans-serif;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--cs-dark);
  margin: 0 0 28px;
  letter-spacing: -0.5px;
}

.cs-detail__paragraph {
  font-family: "Poppins", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--cs-gray-600);
  margin: 0 0 20px;
}

.cs-detail__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--cs-gray-200);
}

.cs-detail__tag {
  display: inline-block;
  font-family: "Poppins", sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--cs-orange);
  border: 1.5px solid var(--cs-orange);
  padding: 4px 14px;
  border-radius: 100px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.cs-detail__tag:hover {
  background: var(--cs-orange);
  color: #fff;
}

/* --- Other Case Studies (below detail) --- */
.cs-other {
  background: var(--cs-gray-50);
  padding: 60px 0 80px;
  scroll-margin-top: 100px;
}

.cs-other__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.cs-other__heading {
  font-family: "Poppins", sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--cs-gray-900);
  margin: 0 0 36px;
  letter-spacing: -0.5px;
}

.cs-other__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* --- Contact Section --- */
.cs-contact {
  padding: 80px 0;
  background: #fff;
  scroll-margin-top: 100px;
}

.cs-contact__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

/* Tablet — 1024px */
@media (max-width: 1024px) {
  .cs-hero {
    padding: 120px 0 60px;
  }

  .cs-hero__title {
    font-size: 40px;
  }

  .cs-hero__subtitle {
    font-size: 16px;
  }

  .cs-grid__list {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .cs-other__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .cs-detail__title {
    font-size: 28px;
  }
}

/* Small Tablet / Large Phone — 768px */
@media (max-width: 768px) {
  .cs-hero {
    padding: 110px 0 50px;
  }

  .cs-hero__title {
    font-size: 34px;
  }

  .cs-hero__subtitle {
    font-size: 15px;
    line-height: 1.6;
  }

  .cs-grid {
    padding: 40px 0 60px;
  }

  .cs-grid__heading {
    font-size: 26px;
    margin-bottom: 28px;
  }

  .cs-grid__list {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .cs-other__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .cs-other {
    padding: 40px 0 60px;
  }

  .cs-other__heading {
    font-size: 24px;
    margin-bottom: 28px;
  }

  .cs-detail {
    padding: 40px 0 60px;
  }

  .cs-detail__image {
    max-height: 280px;
    border-radius: 12px;
    margin-bottom: 28px;
  }

  .cs-detail__title {
    font-size: 24px;
    margin-bottom: 20px;
  }

  .cs-detail__paragraph {
    font-size: 15px;
    line-height: 1.7;
  }

  .cs-filters {
    padding: 20px 0;
  }

  .cs-contact {
    padding: 50px 0;
  }
}

/* Mobile — 480px */
@media (max-width: 480px) {
  .cs-hero {
    padding: 100px 0 40px;
  }

  .cs-hero__title {
    font-size: 28px;
    letter-spacing: -0.5px;
  }

  .cs-hero__subtitle {
    font-size: 14px;
    line-height: 1.6;
  }

  .cs-hero__breadcrumb {
    font-size: 12px;
    margin-bottom: 20px;
  }

  .cs-filters__pill {
    font-size: 13px;
    padding: 6px 16px;
  }

  .cs-grid {
    padding: 32px 0 48px;
  }

  .cs-grid__heading {
    font-size: 22px;
    margin-bottom: 24px;
  }

  .cs-card__body {
    padding: 18px;
  }

  .cs-card__title {
    font-size: 16px;
  }

  .cs-card__excerpt {
    font-size: 13px;
  }

  .cs-detail__inner {
    padding: 0 16px;
  }

  .cs-detail__image {
    max-height: 220px;
    border-radius: 10px;
  }

  .cs-detail__title {
    font-size: 22px;
  }

  .cs-detail__paragraph {
    font-size: 14px;
  }

  .cs-other__inner {
    padding: 0 16px;
  }

  .cs-contact {
    padding: 40px 0;
  }

  .cs-contact__inner {
    padding: 0 16px;
  }
}