/* Northern Lights Color Palette */
:root {
  --aurora-green: #33cc66;
  --aurora-blue: #3399ff;
  --aurora-purple: #6633cc;
  --aurora-pink: #cc3366;
  --aurora-teal: #33cccc;
  --dark-bg: #0c1a25;
  --darker-bg: #08121a;
  --light-text: #f0f8ff;
  --medium-text: #d1e8ff;
  --accent: #00e6b8;
  --card-bg: rgba(25, 45, 65, 0.7);
  --card-border: rgba(102, 204, 255, 0.2);
}

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

body {
  font-family: 'Montserrat', sans-serif;
  background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
  color: var(--light-text);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(circle at 10% 20%, rgba(51, 204, 102, 0.1) 0%, transparent 20%),
    radial-gradient(circle at 90% 80%, rgba(51, 153, 255, 0.1) 0%, transparent 20%),
    radial-gradient(circle at 50% 50%, rgba(102, 51, 204, 0.05) 0%, transparent 30%);
  z-index: -1;
  pointer-events: none;
}

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

/* Header Styles */
.header {
  background: rgba(12, 26, 37, 0.95);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(102, 204, 255, 0.2);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
}

.logo {
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(90deg, var(--aurora-green), var(--aurora-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-menu a {
  color: var(--medium-text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-menu a:hover {
  color: var(--accent);
}

.nav-buttons {
  display: flex;
  gap: 15px;
}

.btn {
  padding: 10px 20px;
  border-radius: 30px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-size: 16px;
}

.btn-primary {
  background: linear-gradient(90deg, var(--aurora-green), var(--aurora-blue));
  color: white;
}

.btn-outline {
  background: transparent;
  color: var(--medium-text);
  border: 2px solid var(--card-border);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(90deg, #2bb859, #2a80d9);
}

.btn-outline:hover {
  background: rgba(102, 204, 255, 0.1);
  border-color: var(--aurora-blue);
}

.btn-large {
  padding: 15px 30px;
  font-size: 18px;
}

/* Hero Section */
.hero {
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(51, 204, 102, 0.05) 0%, transparent 70%);
  z-index: -1;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  background: linear-gradient(90deg, var(--light-text), var(--aurora-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h2 {
  font-size: 1.8rem;
  margin-bottom: 15px;
  color: var(--medium-text);
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: var(--medium-text);
}

.tagline {
  font-size: 1.4rem;
  margin: 30px 0;
  color: var(--aurora-teal);
  font-weight: 600;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

/* Features Section */
.features {
  padding: 80px 0;
  background: rgba(8, 18, 26, 0.6);
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 50px;
  color: var(--light-text);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 20px;
  justify-content: center;
  align-items: stretch;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 15px;
  padding: 30px;
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border-color: var(--aurora-blue);
}

.feature-card h3 {
  color: var(--aurora-teal);
  margin-bottom: 15px;
  font-size: 1.5rem;
}

/* Problem-Solution Section */
.problem-solution {
  padding: 80px 0;
}

.problem-solution > .container > div {
  margin-bottom: 60px;
}

.problem-solution h2 {
  font-size: 2.2rem;
  margin-bottom: 30px;
  color: var(--light-text);
}

.problem-solution p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: var(--medium-text);
}

.problems-list,
.solutions-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 20px;
  justify-content: center;
  align-items: stretch;
}

.problem-item,
.solution-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 20px;
  min-height: 150px;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
}

.problem-item h3,
.solution-item h3 {
  color: var(--aurora-pink);
  margin-bottom: 10px;
  font-size: 1.3rem;
}

.problem-item p,
.solution-item p {
  color: var(--medium-text);
}

.solution-item h3 {
  color: var(--aurora-green);
}

/* Core Technology Section */
.core-tech {
  padding: 80px 0;
  background: rgba(8, 18, 26, 0.6);
}

.core-tech h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: var(--light-text);
}

.core-tech p {
  text-align: center;
  margin-bottom: 50px;
  color: var(--medium-text);
}

.tech-modules {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 20px;
  justify-content: center;
  align-items: stretch;
}

.module-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 15px;
  padding: 30px;
  text-align: center;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
}

.module-card h3 {
  color: var(--aurora-blue);
  margin-bottom: 15px;
  font-size: 1.5rem;
}

.module-card p {
  margin-bottom: 20px;
  color: var(--medium-text);
}

/* Industry Solutions Section */
.industry-solutions {
  padding: 80px 0;
}

.industry-solutions h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: var(--light-text);
}

.industry-solutions p {
  text-align: center;
  margin-bottom: 50px;
  color: var(--medium-text);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-bottom: 50px;
  margin-top: 20px;
  justify-content: center;
  align-items: stretch;
}

.solution-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
}

.solution-card h3 {
  color: var(--aurora-purple);
  margin-bottom: 15px;
  font-size: 1.4rem;
}

.solution-card p {
  color: var(--medium-text);
}

.ai-mentor {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 15px;
  padding: 30px;
  text-align: center;
}

.ai-mentor h3 {
  color: var(--accent);
  margin-bottom: 15px;
  font-size: 1.6rem;
}

.ai-mentor p {
  color: var(--medium-text);
}

/* Hardware Solutions Section */
.hardware {
  padding: 80px 0;
  background: rgba(8, 18, 26, 0.6);
}

.hardware h2, .hardware p {
  text-align: center;
  margin-bottom: 50px;
}

.hardware-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 20px;
  justify-content: center;
  align-items: stretch;
}

.hardware-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 15px;
  padding: 30px;
  text-align: center;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
}

.hardware-card h3 {
  color: var(--aurora-teal);
  margin-bottom: 20px;
  font-size: 1.6rem;
}

.specs {
  margin-bottom: 20px;
}

.spec {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid rgba(102, 204, 255, 0.1);
}

.spec span {
  color: var(--aurora-blue);
  font-weight: 600;
}

.hardware-card p {
  margin: 15px 0;
  color: var(--medium-text);
}

.price {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--aurora-green);
  margin: 20px 0;
}

/* Security Section */
.security {
  padding: 80px 0;
}

.security-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
  justify-content: center;
  align-items: stretch;
}

.security-feature {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 15px;
  padding: 30px;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
}

.security-feature h3 {
  color: var(--aurora-pink);
  margin-bottom: 15px;
  font-size: 1.4rem;
}

.security-feature p {
  color: var(--medium-text);
}

/* Support Model Section */
.support-model {
  padding: 80px 0;
  background: rgba(8, 18, 26, 0.6);
}

.support-model ul {
  list-style-type: none;
  margin: 30px 0;
}

.support-model li {
  padding: 10px 0 10px 30px;
  position: relative;
  color: var(--medium-text);
  border-bottom: 1px solid rgba(102, 204, 255, 0.1);
}

.support-model li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--aurora-green);
  font-weight: bold;
}

/* CTA Section */
.cta {
  padding: 100px 0;
  text-align: center;
  background: linear-gradient(135deg, rgba(12, 26, 37, 0.9) 0%, rgba(8, 18, 26, 0.9) 100%);
}

.cta h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: var(--light-text);
}

.cta p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 40px;
  color: var(--medium-text);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}

/* Footer */
.footer {
  background: var(--darker-bg);
  padding: 60px 0 20px;
  border-top: 1px solid rgba(102, 204, 255, 0.1);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
  color: var(--aurora-teal);
  margin-bottom: 20px;
}

.footer-section p {
  color: var(--medium-text);
  margin-bottom: 10px;
}

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

.footer-section li {
  margin-bottom: 10px;
}

.footer-section a {
  color: var(--medium-text);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(102, 204, 255, 0.1);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  color: var(--medium-text);
}

.footer-tags {
  display: flex;
  gap: 15px;
}

.footer-tags span {
  background: rgba(102, 51, 204, 0.2);
  color: var(--aurora-purple);
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 20px;
    padding: 20px;
  }

  .nav-menu {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero h2 {
    font-size: 1.4rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }

  .features h2,
  .core-tech h2,
  .industry-solutions h2 {
    font-size: 2rem;
  }
}

/* Animation for aurora effect */
@keyframes aurora {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.aurora-bg {
  animation: aurora 10s ease infinite;
  background-size: 200% 200%;
}