/* Import Google Fonts */
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap");

/* CSS Variables */
:root {
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --secondary-color: #8b5cf6;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #06b6d4;
  --light-color: #f8fafc;
  --dark-color: #1e293b;
  --muted-color: #64748b;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1),
    0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1),
    0 8px 10px -6px rgb(0 0 0 / 0.1);
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}

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

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

html {
  scroll-behavior: smooth;
}

/* Utilities */
.text-gradient {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  position: relative;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--muted-color);
  margin-bottom: 2rem;
}

/* Navigation */
.custom-navbar {
  background: rgba(30, 41, 59, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem 0;
  transition: all 0.3s ease;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
}

.navbar-nav .nav-link {
  font-weight: 500;
  margin: 0 0.5rem;
  transition: all 0.3s ease;
  position: relative;
}

.navbar-nav .nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 50%;
  background: var(--primary-color);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after {
  width: 100%;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(30, 41, 59, 0.8);
}

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

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.25rem;
  opacity: 0.9;
  line-height: 1.6;
}

.hero-buttons .btn {
  padding: 0.75rem 2rem;
  font-weight: 600;
  border-radius: 50px;
  transition: all 0.3s ease;
}

.hero-buttons .btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Hero Image */
.hero-image {
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  color: white;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: float 3s ease-in-out infinite;
}

.floating-card i {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.floating-card:nth-child(1) {
  top: 20%;
  left: 10%;
}

.floating-card:nth-child(2) {
  top: 50%;
  right: 10%;
  animation-delay: -1s;
}

.floating-card:nth-child(3) {
  bottom: 20%;
  left: 30%;
  animation-delay: -2s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* Services Section */
.services-section {
  background: var(--light-color);
}

.service-card {
  background: white;
  padding: 2rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  height: 100%;
  border: 1px solid var(--border-color);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-icon i {
  font-size: 2rem;
  color: white;
}

.service-card h4 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--dark-color);
}

.service-card p {
  color: var(--muted-color);
  margin-bottom: 1.5rem;
}

.service-features {
  list-style: none;
  padding: 0;
}

.service-features li {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.service-features i {
  color: var(--success-color);
  margin-right: 0.5rem;
  font-size: 0.8rem;
}

/* Pricing Section */
.pricing-section {
  background: white;
}

.network-tabs {
  background: var(--light-color);
  border-radius: 50px;
  padding: 0.5rem;
}

.network-tabs .nav-link {
  border-radius: 50px;
  border: none;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  color: var(--muted-color);
  transition: all 0.3s ease;
}

.network-tabs .nav-link.active {
  background: var(--primary-color);
  color: white;
  box-shadow: var(--shadow-md);
}

.pricing-card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all 0.3s ease;
  position: relative;
  border: 1px solid var(--border-color);
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.pricing-card.popular {
  border: 2px solid var(--primary-color);
  transform: scale(1.05);
}

.popular-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--primary-color);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 1;
}

.pricing-header {
  padding: 2rem 1.5rem 1.5rem;
  text-align: center;
  color: white;
  position: relative;
}

.mtn-gradient {
  background: linear-gradient(135deg, #ffce00, #f39c12);
}

.airtel-gradient {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.glo-gradient {
  background: linear-gradient(135deg, #2ecc71, #27ae60);
}

.ninobile-gradient {
  background: linear-gradient(135deg, #9b59b6, #8e44ad);
}

.pricing-header h4 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.price {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.validity {
  opacity: 0.9;
  font-size: 0.9rem;
}

.pricing-body {
  padding: 1.5rem;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
}

.pricing-features li {
  display: flex;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.pricing-features i {
  color: var(--success-color);
  margin-right: 0.5rem;
  font-size: 0.8rem;
}

/* Reviews Section */
.reviews-section {
  background: var(--light-color);
}

.review-card {
  background: white;
  padding: 2rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  height: 100%;
  border: 1px solid var(--border-color);
}

.review-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.review-stars {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

.review-stars i {
  color: #fbbf24;
  font-size: 1.2rem;
}

.review-text {
  font-style: italic;
  color: var(--muted-color);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.reviewer {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.reviewer-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.reviewer h5 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.reviewer span {
  font-size: 0.875rem;
  color: var(--muted-color);
}

/* About Section */
.about-section {
  background: white;
}

.about-text {
  font-size: 1.125rem;
  color: var(--muted-color);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.about-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

.stat-item {
  text-align: center;
}

.stat-item h3 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-item span {
  font-size: 0.9rem;
  color: var(--muted-color);
  font-weight: 500;
}

.about-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

/* API Section */
.api-section {
  background: var(--light-color);
}

.api-feature-card {
  background: white;
  padding: 2rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  height: 100%;
  border: 1px solid var(--border-color);
  text-align: center;
}

.api-feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.api-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.api-icon i {
  font-size: 2rem;
  color: white;
}

.api-feature-card h4 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--dark-color);
}

.api-feature-card p {
  color: var(--muted-color);
}

.api-documentation {
  background: white;
  padding: 2rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.api-tabs {
  border-bottom: 2px solid var(--border-color);
}

.api-tabs .nav-link {
  border: none;
  border-bottom: 3px solid transparent;
  padding: 1rem 1.5rem;
  font-weight: 600;
  color: var(--muted-color);
  transition: all 0.3s ease;
}

.api-tabs .nav-link.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  background: none;
}

.code-example {
  background: #1e293b;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.code-header {
  background: #334155;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #475569;
}

.code-title {
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
}

.copy-btn {
  font-size: 0.8rem;
  padding: 0.25rem 0.75rem;
}

.code-example pre {
  margin: 0;
  padding: 1.5rem;
  background: transparent;
  border: none;
}

.code-example code {
  color: #e2e8f0;
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 0.875rem;
  line-height: 1.6;
}

.api-response {
  background: #f8fafc;
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.api-response h5 {
  color: var(--dark-color);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.api-response pre {
  background: white;
  padding: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  margin: 0;
}

.api-response code {
  color: var(--dark-color);
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 0.875rem;
}

.api-info-card {
  background: white;
  padding: 2rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  height: fit-content;
  position: sticky;
  top: 2rem;
}

.api-info-card h4 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--dark-color);
}

.api-info-card p {
  color: var(--muted-color);
  margin-bottom: 1.5rem;
}

.api-steps {
  margin-bottom: 1.5rem;
}

.api-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.step-number {
  width: 30px;
  height: 30px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.step-content h6 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--dark-color);
}

.step-content p {
  font-size: 0.875rem;
  color: var(--muted-color);
  margin: 0;
}

.api-support {
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.api-support h6 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--dark-color);
}

/* Footer */
.footer {
  background: var(--dark-color);
  color: white;
}

.footer-brand h4 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
}

.social-link:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.footer-links h5 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
  padding: 0;
}

.footer-links ul li {
  margin-bottom: 0.5rem;
}

.footer-links ul li a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-links ul li a:hover {
  color: var(--primary-color);
}

.footer-divider {
  border-color: rgba(255, 255, 255, 0.1);
  margin: 2rem 0;
}

.footer-copyright,
.footer-credit {
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-description {
    font-size: 1.125rem;
  }

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

  .about-stats {
    flex-direction: column;
    gap: 1rem;
  }

  .hero-buttons .btn {
    display: block;
    width: 100%;
    margin-bottom: 1rem;
  }

  .floating-card {
    position: static;
    margin-bottom: 1rem;
    width: fit-content;
  }

  .api-info-card {
    position: static;
    margin-top: 2rem;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .service-card,
  .review-card,
  .api-feature-card,
  .api-documentation,
  .api-info-card {
    padding: 1.5rem;
  }

  .pricing-card.popular {
    transform: none;
  }

  .code-example pre {
    padding: 1rem;
  }

  .code-example code {
    font-size: 0.75rem;
  }
}

/* Animation Classes */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Button Styles */
.btn-primary {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-dark)
  );
  border: none;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: linear-gradient(
    135deg,
    var(--primary-dark),
    var(--primary-color)
  );
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}