:root {
  --primary-blue: #1E3A8A;
  --secondary-teal: #14B8A6;
  --light-teal: #6EC4BA;
  --text-gray: #6B7280;
  --bg-light: #F9FAFB;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --border-radius: 16px;
  --transition: all 0.3s ease;
  --carousel-height: 550px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Tajawal', sans-serif;
  background: var(--bg-light);
  color: var(--text-gray);
  line-height: 1.8;
  overflow-x: hidden;
}

.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* ============================================
   CAROUSEL STYLES
   ============================================ */
#articleCarousel {
  height: var(--carousel-height);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 2rem;
  position: relative;
}

#articleCarousel .carousel-item {
  position: relative;
  height: 100%;
}

#articleCarousel .carousel-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

#articleCarousel .carousel-item:hover img {
  transform: scale(1.05);
}

#articleCarousel .carousel-caption {
  position: absolute;
  bottom: 8%;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.95), rgba(20, 184, 166, 0.9));
  padding: 2rem 3rem;
  border-radius: var(--border-radius);
  text-align: center;
  backdrop-filter: blur(10px);
  max-width: 90%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

#articleCarousel .carousel-caption h5 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: #fff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

#articleCarousel .carousel-caption p {
  font-size: 1.2rem;
  margin-bottom: 1.25rem;
  color: #f0f0f0;
  font-weight: 500;
}

#articleCarousel .article-btn {
  display: inline-block;
  padding: 0.875rem 2.5rem;
  background: white;
  color: var(--primary-blue);
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 2px solid white;
}

#articleCarousel .article-btn:hover {
  background: var(--secondary-teal);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(20, 184, 166, 0.5);
  border-color: var(--secondary-teal);
}

#articleCarousel .carousel-control-prev,
#articleCarousel .carousel-control-next {
  width: 50px;
  height: 50px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  opacity: 0.8;
  transition: var(--transition);
}

#articleCarousel .carousel-control-prev {
  left: 20px;
}

#articleCarousel .carousel-control-next {
  right: 20px;
}

#articleCarousel .carousel-control-prev:hover,
#articleCarousel .carousel-control-next:hover {
  opacity: 1;
  background: white;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

#articleCarousel .carousel-control-prev-icon,
#articleCarousel .carousel-control-next-icon {
  filter: invert(1);
}

#articleCarousel .carousel-indicators {
  bottom: 20px;
}

#articleCarousel .carousel-indicators button {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin: 0 5px;
  background-color: rgba(255, 255, 255, 0.6);
  border: 2px solid white;
  transition: var(--transition);
}

#articleCarousel .carousel-indicators button.active {
  width: 40px;
  border-radius: 6px;
  background-color: var(--secondary-teal);
}

/* ============================================
   CAROUSEL TITLE BUTTONS
   ============================================ */
.carousel-titles {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0;
  padding: 0 1rem;
}

.carousel-titles .slide-title-btn {
  background: white;
  border: 2px solid var(--light-teal);
  color: var(--primary-blue);
  padding: 0.875rem 1.75rem;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}

.carousel-titles .slide-title-btn:hover {
  background: var(--light-teal);
  color: white;
  border-color: var(--light-teal);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.carousel-titles .slide-title-btn.active {
  background: var(--secondary-teal);
  color: white;
  border-color: var(--secondary-teal);
  box-shadow: var(--shadow-md);
}

/* ============================================
   SEARCH BAR
   ============================================ */
.search-bar {
  margin: 3rem 0;
}

.search-bar .input-group {
  max-width: 800px;
  margin: 0 auto;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: white;
}

.search-bar .form-control {
  border: none;
  padding: 1.25rem 2rem;
  font-size: 1.1rem;
  background: transparent;
}

.search-bar .form-control:focus {
  box-shadow: none;
  outline: none;
}

.search-bar .btn {
  background: var(--primary-blue);
  color: white;
  border: none;
  padding: 1.25rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  transition: var(--transition);
}

.search-bar .btn:hover {
  background: var(--secondary-teal);
  transform: scale(1.02);
}

/* ============================================
   SECTION TITLES
   ============================================ */
.section-title {
  font-size: 2.5rem;
  color: var(--primary-blue);
  text-align: center;
  margin: 3rem 0 2rem;
  font-weight: 700;
  position: relative;
}

.section-title::after {
  content: '';
  width: 100px;
  height: 5px;
  background: linear-gradient(90deg, var(--secondary-teal), var(--light-teal));
  display: block;
  margin: 1rem auto 0;
  border-radius: 3px;
}

/* ============================================
   FEATURED ARTICLES SECTION
   ============================================ */
.featured-articles {
  margin-bottom: 4rem;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  padding: 0 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.featured-card {
  background: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.featured-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.featured-card .featured-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.featured-card .featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.featured-card:hover .featured-image img {
  transform: scale(1.1);
}

.featured-card .featured-details {
  padding: 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.featured-card .featured-title {
  font-size: 1.5rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
  font-weight: 700;
  line-height: 1.4;
}

.featured-card .featured-text {
  font-size: 1.05rem;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.featured-card .featured-buttons {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: auto;
}

.featured-card .feature-btn {
  flex: 1;
  min-width: 140px;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  text-align: center;
  transition: var(--transition);
  font-size: 0.95rem;
}

.featured-card .btn-solutions {
  background: var(--secondary-teal);
  color: white;
  border: 2px solid var(--secondary-teal);
}

.featured-card .btn-solutions:hover {
  background: var(--primary-blue);
  border-color: var(--primary-blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.3);
}

.featured-card .btn-quote {
  background: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.featured-card .btn-quote:hover {
  background: var(--primary-blue);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
}

/* ============================================
   ALL ARTICLES SECTION
   ============================================ */
.all-articles {
  margin-bottom: 4rem;
}

.article-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.services-grid {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.feature-item {
  background: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.feature-item:hover {
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
  transform: translateY(-5px);
}

.feature-item .feature-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 2rem;
  padding: 2rem;
}

.feature-item .feature-image {
  width: 100%;
  height: 300px;
  overflow: hidden;
  border-radius: var(--border-radius);
}

.feature-item .feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.feature-item:hover .feature-image img {
  transform: scale(1.1);
}

.feature-item .feature-details {
  padding: 1rem;
}

.feature-item .feature-title {
  font-size: 1.75rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
  font-weight: 700;
  line-height: 1.4;
}

.feature-item .feature-text {
  font-size: 1.1rem;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.feature-item .feature-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.feature-item .feature-btn {
  padding: 0.875rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  text-align: center;
  transition: var(--transition);
  font-size: 1rem;
}

.feature-item .btn-solutions {
  background: var(--secondary-teal);
  color: white;
  border: 2px solid var(--secondary-teal);
}

.feature-item .btn-solutions:hover {
  background: var(--primary-blue);
  border-color: var(--primary-blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.3);
}

.feature-item .btn-quote {
  background: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.feature-item .btn-quote:hover {
  background: var(--primary-blue);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
}

.divider {
  display: none;
}

/* ============================================
   LOADER
   ============================================ */
.loader {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

.loader .spinner-border {
  width: 3rem;
  height: 3rem;
  border-width: 0.3rem;
  color: var(--secondary-teal);
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 55px;
  height: 55px;
  background: var(--secondary-teal);
  color: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-blue);
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(20, 184, 166, 0.4);
}

/* ============================================
   HIGHLIGHT SEARCH RESULTS
   ============================================ */
.highlight {
  background: rgba(20, 184, 166, 0.2);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-weight: 600;
}

/* ============================================
   OFFCANVAS FILTER
   ============================================ */
.offcanvas-header {
  background: var(--primary-blue);
  color: white;
}

.offcanvas-title {
  font-weight: 700;
  font-size: 1.4rem;
}

.offcanvas-body {
  padding: 2rem;
}

.offcanvas-body .form-label {
  font-weight: 600;
  color: var(--primary-blue);
  margin-bottom: 0.75rem;
}

.offcanvas-body .form-select {
  border: 2px solid var(--light-teal);
  border-radius: 12px;
  padding: 0.75rem;
  font-size: 1rem;
}

.offcanvas-body .form-select:focus {
  border-color: var(--secondary-teal);
  box-shadow: 0 0 0 0.2rem rgba(20, 184, 166, 0.25);
}

.offcanvas-body .btn-primary {
  background: var(--secondary-teal);
  border: none;
  border-radius: 50px;
  padding: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
}

.offcanvas-body .btn-primary:hover {
  background: var(--primary-blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 992px) {
  :root {
    --carousel-height: 450px;
  }

  #articleCarousel .carousel-caption {
    padding: 1.5rem 2rem;
  }

  #articleCarousel .carousel-caption h5 {
    font-size: 1.6rem;
  }

  #articleCarousel .carousel-caption p {
    font-size: 1rem;
  }

  .feature-item .feature-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .feature-item .feature-image {
    height: 250px;
  }

  .section-title {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  :root {
    --carousel-height: 380px;
  }

  .main-content {
    padding: 1.5rem 0.75rem;
  }

  .carousel-titles {
    gap: 0.75rem;
  }

  .carousel-titles .slide-title-btn {
    font-size: 0.9rem;
    padding: 0.75rem 1.25rem;
  }

  #articleCarousel .carousel-caption {
    padding: 1.25rem 1.5rem;
    bottom: 5%;
  }

  #articleCarousel .carousel-caption h5 {
    font-size: 1.4rem;
  }

  #articleCarousel .carousel-caption p {
    font-size: 0.95rem;
  }

  #articleCarousel .article-btn {
    padding: 0.75rem 1.75rem;
    font-size: 0.95rem;
  }

  .search-bar .input-group {
    max-width: 100%;
  }

  .search-bar .form-control,
  .search-bar .btn {
    padding: 1rem 1.5rem;
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.8rem;
    margin: 2.5rem 0 1.5rem;
  }

  .featured-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .feature-item .feature-content {
    padding: 1.5rem;
  }

  .feature-item .feature-title {
    font-size: 1.5rem;
  }

  .feature-item .feature-text {
    font-size: 1rem;
  }

  .featured-card .featured-title {
    font-size: 1.3rem;
  }

  .featured-card .featured-text {
    font-size: 1rem;
  }
}

@media (max-width: 576px) {
  :root {
    --carousel-height: 300px;
  }

  #articleCarousel .carousel-caption {
    padding: 1rem;
    bottom: 3%;
  }

  #articleCarousel .carousel-caption h5 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
  }

  #articleCarousel .carousel-caption p {
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
  }

  #articleCarousel .article-btn {
    padding: 0.625rem 1.5rem;
    font-size: 0.9rem;
  }

  #articleCarousel .carousel-control-prev,
  #articleCarousel .carousel-control-next {
    width: 40px;
    height: 40px;
  }

  #articleCarousel .carousel-control-prev {
    left: 10px;
  }

  #articleCarousel .carousel-control-next {
    right: 10px;
  }

  .carousel-titles .slide-title-btn {
    font-size: 0.85rem;
    padding: 0.625rem 1rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .section-title::after {
    width: 60px;
    height: 4px;
  }

  .feature-item .feature-image {
    height: 200px;
  }

  .feature-item .feature-title {
    font-size: 1.3rem;
  }

  .feature-item .feature-text {
    font-size: 0.95rem;
  }

  .feature-item .feature-btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }

  .featured-card .featured-image {
    height: 180px;
  }

  .featured-card .featured-details {
    padding: 1.25rem;
  }

  .featured-card .feature-btn {
    min-width: 120px;
    padding: 0.625rem 1.25rem;
    font-size: 0.9rem;
  }

  .back-to-top {
    width: 45px;
    height: 45px;
    font-size: 1.25rem;
    bottom: 20px;
    right: 20px;
  }

  .search-bar .form-control,
  .search-bar .btn {
    padding: 0.875rem 1.25rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 400px) {
  :root {
    --carousel-height: 250px;
  }

  #articleCarousel .carousel-caption {
    padding: 0.75rem;
  }

  #articleCarousel .carousel-caption h5 {
    font-size: 1rem;
  }

  #articleCarousel .carousel-caption p {
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
  }

  #articleCarousel .article-btn {
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
  }
}