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

:root {
  --primary-dark: #0a0e2a;
  --primary-blue: #1a237e;
  --accent-blue: #283593;
  --light-blue: #3949ab;
  --electric-blue: #536dfe;
  --text-light: #e8eaf6;
  --text-muted: #c5cae9;
  --gradient-dark: linear-gradient(135deg, #0a0e2a 0%, #1a237e 100%);
  --gradient-blue: linear-gradient(135deg, #1a237e 0%, #3949ab 100%);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  --radius: 12px;
  --transition: all 0.3s ease;
}

body {
  font-family: 'Inter', sans-serif;
  color: var(--text-light);
  background: var(--gradient-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.5rem;
  background: linear-gradient(to right, #5c6bc0, #8c9eff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 2rem;
  position: relative;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--electric-blue);
  border-radius: 2px;
}

h3 {
  font-size: 1.5rem;
  color: var(--electric-blue);
}

p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Buttons */
.btn-primary, .btn-secondary {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  font-size: 1.1rem;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gradient-blue);
  color: white;
  box-shadow: 0 4px 15px rgba(83, 109, 254, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(83, 109, 254, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--electric-blue);
  border: 2px solid var(--electric-blue);
}

.btn-secondary:hover {
  background: rgba(83, 109, 254, 0.1);
  transform: translateY(-3px);
}

/* Header & Navigation */
.main-header {
  background: rgba(10, 14, 42, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.8rem;
  font-weight: 700;
  color: white;
}

.logo i {
  color: var(--electric-blue);
  margin-right: 10px;
  font-size: 2rem;
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 30px;
}

.nav-links a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  font-size: 1.1rem;
}

.nav-links a:hover {
  color: var(--electric-blue);
}

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero-section {
  padding: 180px 0 100px;
  overflow: hidden;
}

.hero-section .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
}

.hero-content {
  flex: 1;
}

.subtitle {
  font-size: 1.3rem;
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  margin-top: 2rem;
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
}

.hero-img {
  width: 100%;
  max-width: 600px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform: perspective(1000px) rotateY(-10deg);
  transition: var(--transition);
}

.hero-img:hover {
  transform: perspective(1000px) rotateY(0deg);
}

/* About Section */
.about-section {
  padding: 100px 0;
  background: rgba(26, 35, 126, 0.1);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.tech-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.feature {
  display: flex;
  align-items: center;
  padding: 15px;
  background: rgba(83, 109, 254, 0.1);
  border-radius: 8px;
}

.feature i {
  color: var(--electric-blue);
  font-size: 1.5rem;
  margin-right: 15px;
}

/* Steps Section */
.steps-section {
  padding: 100px 0;
}

.section-subtitle {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px;
  font-size: 1.2rem;
}

.steps-list {
  list-style: none;
  counter-reset: step-counter;
  max-width: 900px;
  margin: 0 auto;
}

.steps-list li {
  display: flex;
  margin-bottom: 50px;
  position: relative;
}

.step-number {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: var(--gradient-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 700;
  margin-right: 30px;
  box-shadow: 0 5px 15px rgba(83, 109, 254, 0.3);
}

.step-content {
  background: rgba(26, 35, 126, 0.2);
  padding: 30px;
  border-radius: var(--radius);
  flex-grow: 1;
  border-left: 4px solid var(--electric-blue);
}

.step-content h3 {
  margin-top: 0;
}

.mixing-note {
  display: flex;
  align-items: flex-start;
  background: rgba(83, 109, 254, 0.1);
  padding: 25px;
  border-radius: var(--radius);
  max-width: 900px;
  margin: 50px auto 0;
}

.mixing-note i {
  color: var(--electric-blue);
  font-size: 1.8rem;
  margin-right: 20px;
  flex-shrink: 0;
}

/* Features Section */
.features-section {
  padding: 100px 0;
  background: rgba(26, 35, 126, 0.1);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.feature-card {
  background: rgba(10, 14, 42, 0.7);
  padding: 40px 30px;
  border-radius: var(--radius);
  text-align: center;
  transition: var(--transition);
  border: 1px solid rgba(83, 109, 254, 0.2);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow);
  border-color: var(--electric-blue);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px;
  font-size: 2rem;
}

/* CTA Section */
.cta-section {
  padding: 100px 0;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.cta-form {
  background: rgba(10, 14, 42, 0.7);
  padding: 40px;
  border-radius: var(--radius);
  margin: 50px 0;
  text-align: left;
  border: 1px solid rgba(83, 109, 254, 0.2);
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  color: var(--text-light);
}

.form-group input {
  width: 100%;
  padding: 15px;
  background: rgba(26, 35, 126, 0.3);
  border: 2px solid rgba(83, 109, 254, 0.3);
  border-radius: 8px;
  color: white;
  font-size: 1.1rem;
  transition: var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--electric-blue);
  box-shadow: 0 0 0 3px rgba(83, 109, 254, 0.2);
}

#calculate-btn {
  width: 100%;
  margin-top: 10px;
}

.mixing-details {
  margin-top: 30px;
  padding: 25px;
  background: rgba(26, 35, 126, 0.3);
  border-radius: var(--radius);
  display: none;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  padding: 15px 0;
  border-bottom: 1px solid rgba(83, 109, 254, 0.2);
}

.detail-row:last-child {
  border-bottom: none;
}

.security-badges {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  margin-top: 50px;
}

.badge {
  display: flex;
  align-items: center;
  padding: 15px 25px;
  background: rgba(26, 35, 126, 0.3);
  border-radius: 50px;
}

.badge i {
  color: var(--electric-blue);
  margin-right: 10px;
  font-size: 1.3rem;
}

/* FAQ Section */
.faq-section {
  padding: 100px 0;
  background: rgba(26, 35, 126, 0.1);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.faq-item {
  background: rgba(10, 14, 42, 0.7);
  padding: 30px;
  border-radius: var(--radius);
  border-left: 4px solid var(--electric-blue);
}

/* Footer */
.main-footer {
  background: rgba(10, 14, 42, 0.95);
  padding: 70px 0 30px;
  border-top: 1px solid rgba(83, 109, 254, 0.2);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 50px;
  margin-bottom: 50px;
}

.footer-section h4 {
  color: white;
  margin-bottom: 25px;
  font-size: 1.3rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 15px;
}

.footer-section ul a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.footer-section ul a:hover {
  color: var(--electric-blue);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(83, 109, 254, 0.2);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.disclaimer {
  font-size: 0.8rem;
  margin-top: 15px;
  color: rgba(197, 202, 233, 0.7);
}

/* Responsive Design */
@media (max-width: 992px) {
  h1 {
      font-size: 2.8rem;
  }
  
  h2 {
      font-size: 2.2rem;
  }
  
  .hero-section .container {
      flex-direction: column;
      text-align: center;
  }
  
  .hero-buttons {
      justify-content: center;
  }
  
  .about-grid {
      grid-template-columns: 1fr;
  }
  
  .features-grid {
      grid-template-columns: repeat(2, 1fr);
  }
  
  .faq-grid {
      grid-template-columns: 1fr;
  }
  
  .footer-content {
      grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
      display: none;
  }
  
  .mobile-menu-btn {
      display: block;
  }
  
  h1 {
      font-size: 2.2rem;
  }
  
  h2 {
      font-size: 1.8rem;
  }
  
  .features-grid {
      grid-template-columns: 1fr;
  }
  
  .footer-content {
      grid-template-columns: 1fr;
  }
  
  .steps-list li {
      flex-direction: column;
  }
  
  .step-number {
      margin-right: 0;
      margin-bottom: 20px;
  }
}

@media (max-width: 576px) {
  .hero-buttons {
      flex-direction: column;
      align-items: center;
  }
  
  .btn-primary, .btn-secondary {
      width: 100%;
      max-width: 300px;
  }
  
  .security-badges {
      flex-direction: column;
      align-items: center;
  }
}