:root {
  --bg-body: #F7FAFF;
  --bg-cert: #FFF5EC;
  --bg-card1: #EEF5FF;
  --bg-card2: #E9FFF8;
  --bg-card3: #FFF4E8;
  --bg-contact: #F0F9FF;
  --footer-from: #0B1220;
  --footer-to: #050B18;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-body);
  color: #374151;
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
   
  overflow-x: hidden;
  opacity: 0;
  animation: fadeInBody 0.5s ease forwards;
}

@keyframes fadeInBody {
  to {
    opacity: 1;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.stagger-1.animate-in {
  transition-delay: 0.1s;
}

.stagger-2.animate-in {
  transition-delay: 0.2s;
}

.stagger-3.animate-in {
  transition-delay: 0.3s;
}

.stagger-4.animate-in {
  transition-delay: 0.4s;
}

.stagger-5.animate-in {
  transition-delay: 0.5s;
}

.stagger-6.animate-in {
  transition-delay: 0.6s;
}

/* Smooth transitions for interactive elements */
.custom-btn-primary,
.custom-btn-secondary,
.custom-contact-btn,
.custom-mobile-contact-btn,
.custom-feature-card,
.custom-service-card,
.custom-why-us-cta button {
  transition: all 0.3s ease;
}

.custom-nav a {
  transition: color 0.3s ease;
}

.custom-close-btn {
  transition: color 0.3s ease;
}

.custom-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1rem;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 20;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

@media (min-width: 768px) {
  .custom-header {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

.custom-logo-div {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.custom-logo-img-container {
  width: 4rem;
  height: 4rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  animation: logoBounce 1s ease;
}

@keyframes logoBounce {
  0% {
    transform: scale(0);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

.custom-logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.custom-logo-text h1 {
  font-weight: 600;
  font-size: 1.125rem;
  padding: 0px;
  margin-bottom: 0px;
}

.custom-logo-text p {
  font-size: 0.875rem;
  color: #6b7280;
   margin-top: 0px;
}

.custom-hamburger {
  display: block;
  color: #374151;
  transition: transform 0.3s ease;
}

.custom-hamburger.open {
  transform: rotate(90deg);
}

@media (min-width: 768px) {
  .custom-hamburger {
    display: none;
  }
}

.custom-hamburger svg {
  width: 1.5rem;
  height: 1.5rem;
}

.custom-nav {
  display: none;
  align-items: center;
  gap: 2rem;
  color: #374151;
}

@media (min-width: 768px) {
  .custom-nav {
    display: flex;
  }
}

.custom-nav a {
  color: inherit;

}

.custom-nav a:hover {
  color: #2563eb;
}

.custom-contact-btn {
  background: #2563eb;
  color: white;
  padding: 0.5rem 1.25rem;
  border-radius: 0.5rem;
  margin-right: 100px;
}

.custom-contact-btn:hover {
  background: #1d4ed8;
}

.custom-mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: white;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  z-index: 10;
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(-20px) scaleY(0);
  transform-origin: top;
  max-height: calc(100vh - 5rem);
  overflow-y: auto;
}

.custom-mobile-menu.show {
  display: block;
  opacity: 1;
  transform: translateY(0) scaleY(1);
}

.custom-mobile-menu div {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
  gap: 1rem;
  padding-top: 3rem; /* space for close button */
}

.custom-mobile-menu a {
  color: #374151;
}

.custom-mobile-menu a:hover {
  color: #2563eb;
}

.custom-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: #374151;
  cursor: pointer;
  transition: color 0.2s;
}

.custom-close-btn:hover {
  color: #2563eb;
}

.custom-mobile-contact-btn {
  background: #2563eb;
  color: white;
  padding: 0.5rem 1.25rem;
  border-radius: 0.5rem;
}

.custom-mobile-contact-btn:hover {
  background: #1d4ed8;
}

.custom-hero {
  text-align: center;
  padding: 5rem 1.5rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

@media (min-width: 768px) {
  .custom-hero {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

.custom-hero h2 {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
  color: white;
  margin-top: 90px;
}

@media (min-width: 768px) {
  .custom-hero h2 {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .custom-hero h2 {
    font-size: 3.5rem;
  }
}

.custom-hero .blue-text {
  color: #60a5fa;
  overflow: hidden;
  white-space: nowrap;
}

.typing {
  display: inline-block;
  border-right: 2px solid #60a5fa;
  animation: typing 3s steps(14, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

@keyframes blink-caret {
  from, to {
    border-color: transparent;
  }
  50% {
    border-color: #60a5fa;
  }
}

.custom-hero p {
  margin-top: 1.5rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
}

@media (min-width: 1024px) {
  .custom-hero p {
    font-size: 1.25rem;
  }
}

.custom-cert-badge {
  margin-top: 2.5rem;
  display: flex;
  justify-content: center;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.custom-cert-badge div {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 1.5rem;
  border-radius: 0.75rem;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
}

.custom-cert-badge .orange {
  color: #f97316;
  font-size: 1.25rem;
}

.custom-cert-badge .text-left {
  text-align: left;
}

.custom-cert-badge .font-semibold {
  font-weight: 600;
  font-size: 0.875rem;
  color: white;
}

.custom-cert-badge .gray-text {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.8);
}

.custom-cert-badge .green {
  color: #22c55e;
  font-size: 1.25rem;
}

.custom-hero-buttons {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1rem;
}

@media (min-width: 640px) {
  .custom-hero-buttons {
    flex-direction: row;
  }
}

.custom-btn-primary {
  background: #2563eb;
  color: white;
  padding: 0.75rem 2rem;
  border-radius: 0.75rem;
  box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
  transition: all 0.3s ease;
}

.custom-btn-primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
  }
  50% {
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.5);
  }
  100% {
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
  }
}

.custom-btn-secondary {
  border: 2px solid #2563eb;
  color: #2563eb;
  padding: 0.75rem 2rem;
  border-radius: 0.75rem;
  transition: all 0.3s ease;
}

.custom-btn-secondary:hover {
  background: #eff6ff;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(37, 99, 235, 0.2);
}

.custom-about {
  background: white;
  padding: 6rem 1.5rem;
}

@media (min-width: 768px) {
  .custom-about {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

.custom-about-heading {
  text-align: center;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}

.custom-about-heading h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: #111827;
}

@media (min-width: 768px) {
  .custom-about-heading h2 {
    font-size: 2.25rem;
  }
}

@media (min-width: 1024px) {
  .custom-about-heading h2 {
    font-size: 2.5rem;
  }
}

.custom-about-heading .blue-text {
  color: #2563eb;
}

.custom-about-heading p {
  margin-top: 1rem;
  color: #4b5563;
  font-size: 1.125rem;
}

@media (min-width: 1024px) {
  .custom-about-heading p {
    font-size: 1.25rem;
  }
}

.custom-cert-card {
  margin-top: 4rem;
}

.custom-cert-card > div {
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  background: var(--bg-cert);
  border-radius: 1.5rem;
  padding: 4rem 2rem;
  text-align: center;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
}

@media (min-width: 768px) {
  .custom-cert-card > div {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

 

.custom-cert-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 1rem;
}

.custom-cert-card p {
  color: #374151;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.125rem;
  line-height: 1.75;
}

.custom-cert-card .font-semibold {
  font-weight: 600;
}

.custom-cert-no {
  margin-top: 2rem;
  display: inline-block;
  background: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
  font-size: 0.875rem;
  font-weight: 500;
}

.custom-cert-no .orange {
  color: #ea580c;
  font-weight: 600;
}

.custom-features {
  background: white;
  padding: 6rem 1.5rem;
}

@media (min-width: 768px) {
  .custom-features {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

.custom-features-grid {
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .custom-features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .custom-features-grid {
    gap: 3rem;
  }
}

.custom-feature-card1 {
  background: var(--bg-card1);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  transition: all 0.3s ease;
}

.custom-feature-card1:hover {
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  transform: translateY(-5px);
}

.custom-feature-card1 .custom-feature-icon > div {
  background: rgba(37, 99, 235, 0.1);
}

.custom-feature-card2 {
  background: var(--bg-card2);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  transition: all 0.3s ease;
}

.custom-feature-card2:hover {
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  transform: translateY(-5px);
}

.custom-feature-card2 .custom-feature-icon > div {
  background: rgba(20, 184, 166, 0.1);
}

.custom-feature-card3 {
  background: var(--bg-card3);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  transition: all 0.3s ease;
}

.custom-feature-card3:hover {
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  transform: translateY(-5px);
}

.custom-feature-card3 .custom-feature-icon > div {
  background: rgba(249, 115, 22, 0.1);
}

.custom-feature-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.custom-feature-icon > div {
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.custom-feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.custom-feature-card p {
  color: #4b5563;
}

.custom-services {
  background: white;
  padding: 6rem 1.5rem;
}

@media (min-width: 768px) {
  .custom-services {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

.custom-services-heading {
  text-align: center;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 4rem;
}

.custom-services-heading h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: #111827;
}

@media (min-width: 768px) {
  .custom-services-heading h2 {
    font-size: 2.25rem;
  }
}

@media (min-width: 1024px) {
  .custom-services-heading h2 {
    font-size: 2.5rem;
  }
}

.custom-services-heading .blue-text {
  color: #2563eb;
}

.custom-services-heading p {
  margin-top: 1rem;
  color: #4b5563;
  font-size: 1.125rem;
}

@media (min-width: 1024px) {
  .custom-services-heading p {
    font-size: 1.25rem;
  }
}

.custom-services-grid {
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .custom-services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.custom-service-card {
  background: white;
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  border: 1px solid #e5e7eb;
  transition: all 0.3s ease;
}

.custom-service-card:hover {
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  transform: translateY(-5px);
}

.custom-service-icon1 {
  color: #2563eb;
  font-size: 1.875rem;
  margin-bottom: 1.5rem;
}

.custom-service-icon2 {
  color: #22c55e;
  font-size: 1.875rem;
  margin-bottom: 1.5rem;
}

.custom-service-icon3 {
  color: #7c3aed;
  font-size: 1.875rem;
  margin-bottom: 1.5rem;
}

.custom-service-icon4 {
  color: #a855f7;
  font-size: 1.875rem;
  margin-bottom: 1.5rem;
}

.custom-service-icon5 {
  color: #22c55e;
  font-size: 1.875rem;
  margin-bottom: 1.5rem;
}

.custom-service-icon6 {
  color: #f97316;
  font-size: 1.875rem;
  margin-bottom: 1.5rem;
}

.custom-service-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.custom-service-card p {
  color: #4b5563;
  margin-bottom: 1rem;
}

.custom-service-card ul {
  color: #4b5563;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.875rem;
}

.custom-service-card li {
  margin-bottom: 0.25rem;
}

.custom-services-row2 {
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  margin-top: 3rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .custom-services-row2 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.custom-why-us {
  background: white;
  padding: 6rem 1.5rem;
}

@media (min-width: 768px) {
  .custom-why-us {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

.custom-why-us-heading {
  text-align: center;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 4rem;
}

.custom-why-us-heading h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: #111827;
}

@media (min-width: 768px) {
  .custom-why-us-heading h2 {
    font-size: 2.25rem;
  }
}

.custom-why-us-heading .blue-text {
  color: #2563eb;
}

.custom-why-us-heading p {
  margin-top: 1rem;
  color: #4b5563;
  font-size: 1.125rem;
}

.custom-why-us-content {
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}

@media (min-width: 1024px) {
  .custom-why-us-content {
    grid-template-columns: 1fr 1fr;
  }
}

.custom-why-us-left {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.custom-why-us-item {
  display: flex;
  gap: 1rem;
}

.custom-why-us-item-icon1 {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background: #dbeafe;
  color: #2563eb;
  font-size: 1.25rem;
}

.custom-why-us-item-icon2 {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background: #dcfce7;
  color: #16a34a;
  font-size: 1.25rem;
}

.custom-why-us-item-icon3 {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background: #ddd6fe;
  color: #7c3aed;
  font-size: 1.25rem;
}

.custom-why-us-item-icon4 {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background: #fed7aa;
  color: #ea580c;
  font-size: 1.25rem;
}

.custom-why-us-item h4 {
  font-size: 1.125rem;
  font-weight: 600;
}

.custom-why-us-item p {
  color: #4b5563;
}

.custom-why-us-cta {
  background: var(--bg-contact);
  border-radius: 1.5rem;
  padding: 2.5rem;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
}

.custom-why-us-cta h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.custom-why-us-cta p {
  color: #4b5563;
  margin-bottom: 1.5rem;
}

.custom-why-us-cta button {
  width: 100%;
  background: #2563eb;
  color: white;
  padding: 1rem;
  border-radius: 0.75rem;
  font-weight: 600;
  transition: background 0.2s;
}

.custom-why-us-cta button:hover {
  background: #1d4ed8;
}

.custom-footer {
  background: linear-gradient(to bottom, var(--footer-from), var(--footer-to));
  color: white;
  padding: 6rem 1.5rem;
}

@media (min-width: 768px) {
  .custom-footer {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

.custom-footer-heading {
  text-align: center;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 4rem;
}

.custom-footer-heading h2 {
  font-size: 1.875rem;
  font-weight: 700;
}

@media (min-width: 768px) {
  .custom-footer-heading h2 {
    font-size: 2.25rem;
  }
}

.custom-footer-heading p {
  margin-top: 1rem;
  color: #d1d5db;
  font-size: 1.125rem;
}

.custom-footer-blocks {
  max-width: 72rem;
  margin-left: auto;
  margin-right: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  text-align: center;
}

@media (min-width: 768px) {
  .custom-footer-blocks {
    grid-template-columns: repeat(3, 1fr);
  }
}

.custom-footer-block-icon1 {
  width: 3.5rem;
  height: 3.5rem;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #2563eb;
  margin-bottom: 1rem;
}

.custom-footer-block-icon2 {
  width: 3.5rem;
  height: 3.5rem;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #14b8a6;
  margin-bottom: 1rem;
}

.custom-footer-block-icon3 {
  width: 3.5rem;
  height: 3.5rem;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #7c3aed;
  margin-bottom: 1rem;
}

.custom-footer-block h4 {
  font-weight: 600;
  font-size: 1.125rem;
}

.custom-footer-block p {
  color: #9ca3af;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.custom-footer-block a {
  display: block;
  margin-top: 0.5rem;
  color: #60a5fa;
}

.custom-footer-block a:hover {
  text-decoration: underline;
}

.custom-footer-divider {
  margin-top: 5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.custom-footer-bottom {
  margin-top: 2rem;
  text-align: center;
}

.custom-footer-bottom .logo {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.custom-footer-bottom .logo div {
  width: 4rem;
  height: 4rem;
   
  border-radius: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.custom-footer-bottom .logo div img {
  width: 3.5rem;
  height: 3.5rem;
  object-fit: contain;
}

.custom-footer-bottom .logo span {
  font-weight: 600;
}

@media (max-width: 480px) {
  .custom-hero {
    padding: 3rem 1rem;
  }

  .custom-hero h2 {
    font-size: 1.75rem;
  }

  .custom-about,
  .custom-features,
  .custom-services,
  .custom-why-us,
  .custom-footer {
    padding: 4rem 1rem;
  }

  .custom-services-grid,
  .custom-services-row2,
  .custom-features-grid {
    gap: 1.5rem;
  }
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  background: #2563eb;
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 100;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

.back-to-top:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}