/* ===== IMPROVED CATEGORIES SECTION ===== */
.categories-section {
  padding: 60px 25px 50px; /* Reduced vertical padding */
  background: linear-gradient(180deg, #ffffff 0%, #f6f8ff 100%);
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
  overflow-x: hidden;
  position: relative;
}

.categories-section .container {
  background: white;
  border-radius: 24px;
  padding: 50px 40px;
  box-shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
  border: 1px solid rgba(226, 232, 240, 0.8);
  position: relative;
  z-index: 1;
}

.section-title {
  text-align: center;
  margin-bottom: 70px;
  font-size: 36px;
  color: var(--secondary-color);
  position: relative;
  padding-bottom: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-title:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  border-radius: 999px;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  margin-top: 0;
}

.categories-section h2 {
  text-align: center;
  font-size: 32px;
  color: var(--secondary-color);
  margin-bottom: 40px;
  font-weight: 700;
  position: relative;
  padding-bottom: 15px;
}

.categories-section h2:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  border-radius: 999px;
}

.category-card {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 25px 45px rgba(15, 23, 42, 0.18);
  transition: var(--transition);
  height: 280px; /* Taller cards for more visual impact */
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.95));
}

.category-card:hover {
  transform: translateY(-14px) scale(1.01);
  box-shadow: 0 35px 60px rgba(15, 23, 42, 0.25);
}

.category-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.category-card:hover .category-image {
  transform: scale(1.08);
}

.category-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, rgba(8, 13, 26, 0) 0%, rgba(8, 13, 26, 0.88) 100%);
  padding: 42px 24px 24px;
  color: white;
  transition: var(--transition);
  backdrop-filter: blur(2px);
}

.category-title {
  font-size: 19px;
  margin-bottom: 10px;
  font-weight: 600;
  transition: var(--transition);
  letter-spacing: 0.01em;
}

.category-card:hover .category-overlay {
  background: linear-gradient(180deg, rgba(37, 99, 235, 0) 0%, rgba(37, 99, 235, 0.92) 100%);
  padding-bottom: 34px; /* Slightly expand on hover */
}

/* ===== ADVANTAGES SECTION ENHANCEMENTS ===== */
.advantages-section {
  padding: 50px 25px 60px;
  background: linear-gradient(180deg, #f6f8ff 0%, #eef2ff 100%);
  margin-top: -30px;
  position: relative;
  z-index: 0;
}

.section-header {
  text-align: center;
  margin-bottom: 70px;
  font-size: 38px;
  color: var(--secondary-color);
  position: relative;
  padding-bottom: 20px;
  font-weight: 700;
}

.section-header:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), #3b82f6);
  border-radius: 999px;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 35px;
}

.advantage-card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 25px 45px rgba(15, 23, 42, 0.12);
  transition: var(--transition);
  border: 1px solid rgba(226, 232, 240, 0.8);
  position: relative;
}

.advantage-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 20px;
  border: 1px solid transparent;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(14, 165, 233, 0.15));
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.advantage-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 35px 60px rgba(15, 23, 42, 0.18);
}

.advantage-card:hover::after {
  opacity: 1;
}

.advantage-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: var(--transition);
}

.advantage-card:hover .advantage-image {
  transform: scale(1.05);
}

.advantage-content {
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.advantage-title {
  color: var(--secondary-color);
  font-size: 22px;
  text-align: left;
  position: relative;
  padding-bottom: 12px;
  font-weight: 700;
  margin: 0;
}

.advantage-title:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 45px;
  height: 3px;
  background-color: var(--primary-color);
  border-radius: 999px;
}

.advantage-description {
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.9;
}

/* ===== COMPANY SECTION IMPROVEMENTS ===== */
.company-section {
  padding: 50px 25px 80px;
  background-color: white;
  position: relative;
  isolation: isolate;
}

.company-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.08), transparent 45%);
  z-index: -1;
}

.content-wrapper {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 50px;
  align-items: start;
}

.text-content {
  font-size: 16px;
  line-height: 1.8;
}

.text-content p {
  margin-bottom: 20px;
  color: var(--text-light);
}

.features-list {
  list-style: none;
  margin: 30px 0;
}

.features-list li {
  margin-bottom: 16px;
  padding-left: 32px;
  position: relative;
  color: var(--text-light);
  font-weight: 500;
}

.features-list li:before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  box-shadow: 0 6px 12px rgba(37, 99, 235, 0.25);
}

.features-list li::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 11px;
  width: 6px;
  height: 6px;
  border-top: 2px solid white;
  border-right: 2px solid white;
  transform: rotate(45deg);
}

.image-container {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--box-shadow);
}

.company-image {
  width: 100%;
  border-radius: 12px;
  transition: var(--transition);
}

.image-container:hover .company-image {
  transform: scale(1.05);
}

.company-info {
  margin-top: 60px;
  text-align: center;
}

.company-name {
  font-size: 32px;
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: 12px;
}

.company-motto {
  font-size: 20px;
  color: var(--primary-color);
  font-style: italic;
}

/* ===== ENHANCED CALCULATOR STYLES ===== */
.calculator-section {
  padding: 110px 25px;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2ff 100%);
}

.calculator-container {
  max-width: 850px;
  margin: 0 auto;
  background: white;
  padding: 42px;
  border-radius: 26px;
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.12);
  border: 1px solid rgba(148, 163, 184, 0.35);
  position: relative;
  overflow: hidden;
}

.calculator-container::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(59, 130, 246, 0.12), transparent 45%);
  pointer-events: none;
}

.calculator-title {
  text-align: center;
  color: var(--secondary-color);
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 15px;
  font-size: 28px;
  font-weight: 600;
}

.calculator-title:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--primary-color);
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 25px;
}

.calculator-field {
  margin-bottom: 25px;
}

.calculator-field label {
  display: block;
  margin-bottom: 10px;
  font-weight: 500;
  color: var(--secondary-color);
  font-size: 15px;
}

.calculator-field input,
.calculator-field select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  border-radius: 12px;
  font-size: 15px;
  transition: var(--transition);
  background-color: rgba(248, 250, 252, 0.9);
  box-shadow: inset 0 4px 10px rgba(15, 23, 42, 0.05);
}

.calculator-field input:focus,
.calculator-field select:focus {
  border-color: rgba(37, 99, 235, 0.7);
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
  background-color: white;
}

.calculator-result {
  background: rgba(248, 250, 252, 0.95);
  padding: 28px;
  border-radius: 16px;
  margin-top: 30px;
  text-align: center;
  border: 1px dashed rgba(148, 163, 184, 0.8);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}

.result-price {
  font-size: 32px;
  font-weight: bold;
  color: var(--primary-color);
  margin: 15px 0;
}

.calculate-btn {
  background: linear-gradient(135deg, var(--primary-color), #14b8a6);
  color: white;
  padding: 15px 28px;
  border: none;
  border-radius: 14px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  letter-spacing: 0.4px;
  display: block;
  width: 100%;
  margin-top: 30px;
  box-shadow: 0 18px 30px rgba(37, 99, 235, 0.25);
}

.calculate-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 35px rgba(20, 184, 166, 0.35);
}

.calculate-btn:active {
  transform: translateY(-1px);
}

/* ===== PROJECTS AND GALLERY STYLES ===== */
.project-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 55px;
}

.filter-btn {
  padding: 12px 22px;
  background: rgba(15, 23, 42, 0.05);
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: 999px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-color);
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.filter-btn:hover, .filter-btn.active {
  background: linear-gradient(135deg, var(--primary-color), #3b82f6);
  color: white;
  border-color: transparent;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.25);
  transform: translateY(-2px);
}