:root {
  --primary-blue: #004a99;
  --secondary-blue: #003366;
  --accent-teal: #00a0e9;
  --accent-orange: #f58220;
  --text-dark: #1a1a1a;
  --text-light: #4a4a4a;
  --bg-light: #f8fafc;
  --white: #ffffff;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

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

/* Header & Nav */
header {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-sm);
}

.logo img {
  height: 40px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav ul li a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: var(--transition);
}

nav ul li a:hover {
  color: var(--accent-teal);
}

.auth-buttons {
  display: flex;
  gap: 1rem;
}

.btn {
  padding: 0.6rem 1.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-teal {
  background-color: var(--accent-teal);
  color: var(--white);
}

.btn-teal:hover {
  background-color: #008cc9;
  transform: translateY(-2px);
}

.btn-outline {
  border: 2px solid var(--accent-teal);
  color: var(--accent-teal);
}

.btn-outline:hover {
  background-color: var(--accent-teal);
  color: var(--white);
}

/* Hero Section */
.hero {
  position: relative;
  padding: 6rem 5% 10rem;
  display: flex;
  align-items: center;
  background: url("/hero_background_abstract.png") no-repeat center center/cover;
  color: var(--white);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(0, 74, 153, 0.9),
    rgba(0, 160, 233, 0.7)
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  flex: 1;
}

.hero-image {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.hero-image img {
  max-width: 90%;
  animation: float 6s ease-in-out infinite;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

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

/* Product Section */
.section {
  padding: 6rem 5%;
  text-align: center;
}

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

.section-title h2 {
  font-size: 2.5rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.product-card {
  background: var(--white);
  padding: 3rem 2rem;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-10px);
}

.product-card i {
  font-size: 3rem;
  color: var(--accent-teal);
  margin-bottom: 1.5rem;
}

/* Pricing Section */
.pricing {
  background-color: var(--bg-light);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--white);
  padding: 3rem 2rem;
  border-radius: 24px;
  box-shadow: var(--shadow-md);
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card.popular {
  background: var(--secondary-blue);
  color: var(--white);
  transform: scale(1.05);
  z-index: 10;
}

.popular-tag {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--accent-orange);
  color: var(--white);
  padding: 0.3rem 0.8rem;
  border-radius: 10px;
  font-size: 0.8rem;
  font-weight: 700;
}

.pricing-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.price {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 2rem;
}

.features-list {
  list-style: none;
  text-align: left;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.features-list li {
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.features-list li::before {
  content: "\2713";
  color: var(--accent-teal);
  font-weight: bold;
}

/* Stats Section */
.stats {
  background: var(--primary-blue);
  color: var(--white);
  padding: 4rem 5%;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 2rem;
}

.stat-item h4 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

/* Footer */
footer {
  background: #001a33;
  color: var(--white);
  padding: 4rem 5% 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-col h5 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

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

.footer-col ul li {
  margin-bottom: 0.8rem;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--white);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Responsive */
@media (max-width: 968px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding-top: 4rem;
  }
  .hero h1 {
    font-size: 2.5rem;
  }
  .hero-image {
    margin-top: 3rem;
    justify-content: center;
  }
  nav {
    display: none;
  }
}