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

:root {
  --primary-color: #2c5f7a;
  --secondary-color: #f39c12;
  --accent-color: #e74c3c;
  --dark-color: #2c3e50;
  --light-color: #ecf0f1;
  --white: #ffffff;
  --gray: #7f8c8d;
  --gradient: linear-gradient(135deg, #2c5f7a 0%, #34495e 100%);
}

body {
  font-family: "Open Sans", sans-serif;
  line-height: 1.6;
  color: var(--dark-color);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
    padding: 0 30px;
  }
}

@media (min-width: 1600px) {
  .container {
    max-width: 1440px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
}

/* Header */
header {
  background: var(--white);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

@media (min-width: 1200px) {
  header {
    padding: 0.5rem 0;
  }
}

@media (max-width: 768px) {
  header {
    display: none;
  }
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  flex-wrap: wrap;
  gap: 1rem;
}

@media (min-width: 1200px) {
  nav {
    padding: 1.25rem 0;
    gap: 2rem;
  }
}

.logo {
  height: 50px;
  width: auto;
  transition: transform 0.3s ease;
  max-width: 60%;
}

@media (min-width: 1200px) {
  .logo {
    height: 60px;
    max-width: none;
  }
}

@media (max-width: 480px) {
  .logo {
    height: 40px;
    max-width: 50%;
  }
}

.logo:hover {
  transform: scale(1.05);
}

.cta-button {
  background: var(--gradient);
  color: var(--white);
  padding: 12px 30px;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(44, 95, 122, 0.3);
  font-size: 16px;
  white-space: nowrap;
}

@media (min-width: 1200px) {
  .cta-button {
    padding: 14px 35px;
    font-size: 17px;
  }
}

@media (max-width: 480px) {
  .cta-button {
    padding: 10px 20px;
    font-size: 14px;
  }
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(44, 95, 122, 0.4);
}

/* Hero Section */
.hero {
  background: var(--gradient);
  color: var(--white);
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 500px;
  display: flex;
  align-items: center;
  margin-top: 70px;
}

@media (min-width: 1200px) {
  .hero {
    padding: 180px 0 100px;
    min-height: 600px;
    margin-top: 80px;
  }
}

@media (min-width: 1600px) {
  .hero {
    padding: 200px 0 120px;
    min-height: 650px;
    margin-top: 90px;
  }
}

@media (max-width: 768px) {
  .hero {
    margin-top: 0;
    padding: 80px 0 60px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 60px 0 50px;
  }
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="%23ffffff" opacity="0.1"><polygon points="1000,100 1000,0 0,100"/></svg>');
  background-size: cover;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-family: "Montserrat", sans-serif;
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  animation: fadeInUp 1s ease;
  line-height: 1.2;
}

@media (min-width: 1200px) {
  .hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
  }
}

@media (min-width: 1600px) {
  .hero h1 {
    font-size: 4.5rem;
  }
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.2rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.75rem;
  }
}

.hero p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  animation: fadeInUp 1s ease 0.2s both;
  line-height: 1.6;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 1200px) {
  .hero p {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    line-height: 1.7;
  }
}

@media (min-width: 1600px) {
  .hero p {
    font-size: 1.5rem;
    max-width: 1000px;
  }
}

@media (max-width: 768px) {
  .hero p {
    font-size: 1.05rem;
  }
}

@media (max-width: 480px) {
  .hero p {
    font-size: 0.95rem;
  }
}

.hero-cta {
  display: inline-flex;
  gap: 1rem;
  animation: fadeInUp 1s ease 0.4s both;
}

.btn-primary {
  background: var(--secondary-color);
  color: var(--white);
  padding: 15px 40px;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 18px;
  box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
  display: inline-block;
  text-align: center;
}

@media (min-width: 1200px) {
  .btn-primary {
    padding: 18px 50px;
    font-size: 19px;
  }
}

@media (min-width: 1600px) {
  .btn-primary {
    padding: 20px 55px;
    font-size: 20px;
  }
}

@media (max-width: 768px) {
  .btn-primary {
    padding: 14px 35px;
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .btn-primary {
    padding: 12px 25px;
    font-size: 15px;
  }
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(243, 156, 18, 0.4);
}

/* Features Section */
.features {
  padding: 80px 0;
  background: var(--light-color);
}

@media (min-width: 1200px) {
  .features {
    padding: 100px 0;
  }
}

@media (min-width: 1600px) {
  .features {
    padding: 120px 0;
  }
}

.section-title {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title h2 {
  font-family: "Montserrat", sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
  line-height: 1.3;
}

@media (max-width: 768px) {
  .section-title h2 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .section-title h2 {
    font-size: 1.6rem;
  }
}

.section-title p {
  font-size: 1.2rem;
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
  padding: 0 1rem;
}

@media (max-width: 768px) {
  .section-title p {
    font-size: 1.05rem;
  }
}

@media (max-width: 480px) {
  .section-title p {
    font-size: 0.95rem;
  }
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 1200px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }
}

@media (min-width: 1600px) {
  .features-grid {
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

.feature-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

@media (max-width: 768px) {
  .feature-card {
    padding: 2rem;
  }
}

@media (max-width: 480px) {
  .feature-card {
    padding: 1.5rem;
  }
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  color: var(--white);
}

.feature-card h3 {
  font-family: "Montserrat", sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.feature-card p {
  color: var(--gray);
  line-height: 1.8;
}

/* Clients Section */
.clients {
  padding: 80px 0;
  background: var(--white);
}

@media (min-width: 1200px) {
  .clients {
    padding: 100px 0;
  }
}

@media (min-width: 1600px) {
  .clients {
    padding: 120px 0;
  }
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  align-items: center;
  margin-top: 3rem;
}

@media (max-width: 768px) {
  .clients-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .clients-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

.client-logo {
  text-align: center;
  padding: 2rem;
  border-radius: 15px;
  transition: all 0.3s ease;
  background: var(--light-color);
}

.client-logo:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.client-logo img {
  max-width: 250px;
  max-height: 80px;
  width: auto;
  height: auto;
  /* filter: grayscale(100%); */
  transition: filter 0.3s ease;
}

.client-logo:hover img {
  filter: grayscale(0%);
}

/* About Section */
.about {
  padding: 80px 0;
  background: var(--light-color);
}

@media (min-width: 1200px) {
  .about {
    padding: 100px 0;
  }
}

@media (min-width: 1600px) {
  .about {
    padding: 120px 0;
  }
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.about-text h2 {
  font-family: "Montserrat", sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

@media (max-width: 768px) {
  .about-text h2 {
    font-size: 2rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .about-text h2 {
    font-size: 1.6rem;
  }
}

.about-text p {
  font-size: 1.1rem;
  color: var(--gray);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

@media (max-width: 768px) {
  .about-text p {
    font-size: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .about-text p {
    font-size: 0.95rem;
  }
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

@media (max-width: 768px) {
  .stats {
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

.stat {
  text-align: center;
  padding: 1.5rem;
  background: var(--white);
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stat-number {
  font-family: "Montserrat", sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--secondary-color);
  display: block;
}

@media (max-width: 768px) {
  .stat-number {
    font-size: 2.2rem;
  }
}

@media (max-width: 480px) {
  .stat-number {
    font-size: 2rem;
  }
}

.stat-label {
  color: var(--gray);
  font-weight: 600;
  margin-top: 0.5rem;
}

/* Footer */
footer {
  background: var(--dark-color);
  color: var(--white);
  padding: 3rem 0 2rem;
  text-align: center;
}

.footer-content {
  margin-bottom: 2rem;
}

.footer-logo {
  height: 60px;
  margin-bottom: 1rem;
}

.footer-text {
  max-width: 600px;
  margin: 0 auto 2rem;
  opacity: 0.8;
  line-height: 1.8;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  opacity: 0.6;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .hero {
    padding: 100px 0 60px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .hero-cta a {
    width: 100%;
    max-width: 300px;
  }

  .features {
    padding: 60px 0;
  }

  .about {
    padding: 60px 0;
  }

  .clients {
    padding: 60px 0;
  }

  .section-title {
    margin-bottom: 3rem;
  }

  .feature-icon {
    width: 70px;
    height: 70px;
    font-size: 1.8rem;
  }

  .feature-card h3 {
    font-size: 1.3rem;
  }

  .feature-card p {
    font-size: 0.95rem;
  }

  .client-logo {
    padding: 1.5rem;
  }

  .client-logo img {
    max-width: 120px;
    max-height: 60px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 90px 0 50px;
  }

  .features {
    padding: 50px 0;
  }

  .about {
    padding: 50px 0;
  }

  .clients {
    padding: 50px 0;
  }

  .section-title {
    margin-bottom: 2.5rem;
  }

  .feature-icon {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }

  .feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
  }

  .feature-card p {
    font-size: 0.9rem;
  }

  .stat {
    padding: 1.2rem;
  }

  .footer-logo {
    height: 50px;
  }

  .footer-text {
    font-size: 0.95rem;
  }

  footer {
    padding: 2.5rem 0 1.5rem;
  }
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Loading animation */
.loading {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

/* Hover effects for better UX */
.feature-card,
.client-logo,
.stat {
  cursor: pointer;
}

/* WhatsApp button styling */
.whatsapp-btn {
  background: #25d366;
  color: white;
  border: none;
  border-radius: 50px;
  padding: 15px 30px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

@media (max-width: 768px) {
  .whatsapp-btn {
    padding: 14px 25px;
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .whatsapp-btn {
    padding: 12px 20px;
    font-size: 14px;
    gap: 8px;
  }
}

.whatsapp-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  background: #128c7e;
}

.whatsapp-btn::before {
  content: "📱";
  font-size: 18px;
}