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

body {
  font-family: 'Inter', sans-serif;
  background-color: #ffffff;
  color: #0a0f2c;
  overflow-x: hidden;
}

/* Hero Section */
.hero {
  background: url("images/hallway.png") no-repeat center center;
  background-size: Cover; /* Ensures full image fits screen */
  background-repeat: no-repeat;
  background-position: center;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0 5vw;
  text-align: left;
}

.hero-content {
  width: 100vw; /* restrict text to the blackline mark */
  max-width: 1000px;
}

.hero h1 {
  font-size: 5.25rem;
  font-weight: 800;
  color: #0a0f2c;
  margin-bottom: 1.5rem;
  line-height: 1.15;
}

.subtext {
  font-size: 2.25rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.subtext .light {
  color: #2d9cdb;
  font-weight: 400;
}

.subtext .dark {
  color: #0a0f2c;
  font-weight: 600;
}

.cta {
  display: inline-block;
  padding: 1.25rem 2.5rem;
  font-size: 1.625rem;
  background-color: #0a0f2c;
  color: #ffffff;
  font-weight: 600;
  border-radius: 10px;
  text-decoration: none;
  transition: background-color 0.3s ease;
}

.cta:hover {
  background-color: #2d9cdb;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .hero-content {
    width: 100%;
    padding-right: 2rem;
  }

  .hero h1 {
    font-size: 2.75rem;
  }

  .subtext {
    font-size: 1.5rem;
  }

  .cta {
    font-size: 1.125rem;
    padding: 1rem 2rem;
  }
}

/* Navbar Container */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 1);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  z-index: 1000;
}

/* Transparency on scroll */
.navbar.scrolled {
  background-color: rgba(211, 211, 211, 0.6);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

/* Inner Container */
.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
}

/* Logo Text */
.logo {
  font-size: 1.875rem;
  font-weight: 700;
  color: #0a0f2c;
  text-decoration: none;
}

/* Nav Links */
.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 1.3rem;
  color: #0a0f2c;
  text-decoration: underline;
  transition: color 0.3s ease;
}

.nav-links .contact-btn {
  text-decoration: none;
}

.nav-links a:hover {
  color: #2d9cdb;
}

/* Contact Button */
.contact-btn {
  background-color: #2d9cdb;
  color: #ffffff;
  padding: 0.65rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  transition: background-color 0.3s ease;
}

.contact-btn:hover {
  background-color: #1992c4;
}

/* Section 2 – Features */
.features {
  padding: 6rem 5vw;
  background-color: #ffffff;
  text-align: center;
}

.features h2 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 3rem;
  color: #0a0f2c;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.feature-card {
  background-color: #e5e5e5;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  transition: transform 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
}

.feature-card h3 {
  font-size: 1.5rem;
  color: #0a0f2c;
  margin-bottom: 1rem;
}

.feature-card p {
  font-size: 1.125rem;
  color: #696969;
  line-height: 1.6;
}

/* Responsive Grid */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

/* Section 3 – Demo */
.demo-section {
  padding: 6rem 5vw;
  background-color: #0a0f2c;
  text-align: center;
  color: #ffffff;
}

.demo-section h2 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 3rem;
  color: #ffffff;
}

.demo-box {
  background-color: rgba(255, 255, 255, 0.05);
  border: 2px dashed rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  padding: 4rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.demo-placeholder {
  font-size: 1.25rem;
  color: #ffffff;
  opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
  .demo-box {
    padding: 3rem 1.5rem;
  }

  .demo-section h2 {
    font-size: 2.25rem;
  }
}

/* Section 4 – Why It Matters */
.why-section {
  padding: 6rem 5vw;
  background-color: #ffffff;
  text-align: center;
  color: #0a0f2c;
}

.why-section h2 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 3rem;
  color: #0a0f2c;
}

.value-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  font-size: 1.625rem;
  font-weight: 600;
  max-width: 800px;
  margin: 0 auto;
  color: #0a0f2c;
  line-height: 1.5;
}

.value-list li::before {
  content: "✔";
  color: #2d9cdb;
  margin-right: 0.75rem;
  font-weight: bold;
}

/* Responsive */
@media (max-width: 768px) {
  .value-list {
    font-size: 1.25rem;
    gap: 1.25rem;
  }

  .why-section h2 {
    font-size: 2.25rem;
  }
}

/* Section 5 – Pricing Preview */
.pricing-preview {
  padding: 6rem 5vw;
  background-color: #f9f9f9;
  text-align: center;
  color: #0a0f2c;
}

.pricing-preview h2 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.pricing-note {
  font-size: 1.375rem;
  margin-bottom: 2.5rem;
  color: #555;
}

.pricing-cta {
  background-color: #0a0f2c;
  color: #ffffff;
  padding: 1.25rem 2.5rem;
  font-size: 1.625rem;
  font-weight: 600;
  border-radius: 10px;
  text-decoration: none;
  transition: background-color 0.3s ease;
}

.pricing-cta:hover {
  background-color: #2d9cdb;
}

/* Responsive */
@media (max-width: 768px) {
  .pricing-preview h2 {
    font-size: 2.25rem;
  }

  .pricing-note {
    font-size: 1.125rem;
  }

  .pricing-cta {
    font-size: 1.25rem;
    padding: 1rem 2rem;
  }
}

/* Section 6 – Footer Call to Action */
.footer-cta {
  background-color: #0a0f2c;
  color: #ffffff;
  text-align: center;
  padding: 5rem 2rem;
}

.footer-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 2rem;
}

.footer-content .cta {
  background-color: #2d9cdb;
  color: #ffffff;
  font-size: 1.5rem;
  padding: 1rem 2.5rem;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.3s ease;
}

.footer-content .cta:hover {
  background-color: #1992c4;
}

.footer-contact {
  margin-top: 2rem;
  font-size: 1rem;
  color: #ccc;
}

/* Responsive */
@media (max-width: 768px) {
  .footer-content h2 {
    font-size: 2rem;
  }

  .footer-content .cta {
    font-size: 1.25rem;
    padding: 0.75rem 2rem;
  }

  .footer-contact {
    font-size: 0.9rem;
  }
}

/* Default: show desktop, hide mobile */
.desktop-header {
  display: block;
}

.mobile-header {
  display: none;
}

/* Mobile Header Styling */
@media (max-width: 768px) {
  .desktop-header {
    display: none;
  }

  .mobile-header {
    display: block;
    background-color: #ffffff;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #e5e5e5;
  }

  .mobile-header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .mobile-logo {
    height: 28px;
  }

  .hamburger {
    font-size: 1.75rem;
    background: none;
    border: none;
    cursor: pointer;
    color: #0a0f2c;
  }

  .mobile-nav {
    display: none;
    flex-direction: column;
    gap: 1.25rem;
    margin-top: 1.5rem;
    font-size: 1.125rem;
  }

  .mobile-nav a {
    color: #0a0f2c;
    text-decoration: none;
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
  }

  .mobile-nav.show {
    display: flex;
  }
}