:root {
  /* Colors */
  --color-dark-blue-body: #0d1a2d;
  --color-dark-blue-section: #0c182a;
  --color-card-background: #1a2b42;
  --color-white: #ffffff;
  --color-light-grey: #cccccc;
  --color-medium-grey: #999999;
  --color-primary-blue: #007bff; /* For 'Reach out' button, 'Get Early Access' */
  --color-accent-purple: #a855f7; /* Start of gradient */
  --color-accent-blue: #6366f1; /* End of gradient, also for icons, focus, links */
  --color-subtle-border: #2a4163;
  --color-black: #000000;

  /* Spacing */
  --padding-section: 5rem 0;
  --margin-bottom-sm: 0.5rem;
  --margin-bottom-md: 1rem;
  --margin-bottom-lg: 1.5rem;
  --margin-bottom-xl: 2rem;
  --margin-bottom-xxl: 3rem;
  --margin-bottom-xxxl: 4rem;

  /* Border Radius */
  --border-radius-sm: 0.3rem;
  --border-radius-md: 0.5rem;

  /* Font Weights */
  --font-weight-regular: 400;
  --font-weight-medium: 600;
  --font-weight-bold: 700;

  /* Font Sizes */
  --font-size-body: 1rem; 
  --font-size-sm: 0.95rem;
  --font-size-md: 1.05rem;
  --font-size-lg: 1.1rem;
  --font-size-xl: 1.15rem;
  --font-size-xxl: 1.25rem;
  --font-size-h5: 1.4rem;
  --font-size-h4: 1.25rem;
  --font-size-h3: 1.5rem;
  --font-size-h2: 2.5rem;
  --font-size-h1: 5rem;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Montserrat', sans-serif;
  background-color: var(--color-dark-blue-body);
  color: var(--color-white);
}

button:focus,
a:focus,
input:focus,
textarea:focus {
  outline: 2px dashed var(--color-accent-blue);
  outline-offset: 3px;
}

.navbar {
  background-color: transparent !important;
}

.navbar.scrolled {
  background-color: var(--color-dark-blue-section) !important;
  transition: background-color 0.3s ease;
}

.navbar-brand {
  font-weight: var(--font-weight-bold);
  font-family: 'Audiowide', cursive;
  color: var(--color-white) !important;
}

.nav-link {
  color: var(--color-white) !important;
  font-weight: var(--font-weight-regular);
}

.btn-reach-out {
  background-color: var(--color-primary-blue);
  border-color: var(--color-primary-blue);
  color: var(--color-white);
  padding: var(--margin-bottom-sm) var(--margin-bottom-lg);
  border-radius: var(--border-radius-sm);
  text-decoration: none;
  display: inline-block;
  font-weight: var(--font-weight-medium);
}

.btn-reach-out:hover,
.btn-reach-out:focus {
  background-color: #005ecb;
  border-color: #005ecb;
  color: var(--color-white);
}

.hero-section {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-headline {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  margin-bottom: var(--margin-bottom-lg);
}

.hero-headline .radiant-text {
  background: linear-gradient(to right, var(--color-accent-purple), var(--color-accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-accent-purple);
}

.hero-description {
  font-size: var(--font-size-xxl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--margin-bottom-xl);
}

.btn-get-early-access {
  background-color: var(--color-primary-blue);
  border: none;
  color: var(--color-white);
  padding: 0.8rem 2rem;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  margin-right: var(--margin-bottom-md);
}

.btn-learn-more {
  background-color: transparent;
  border: 2px solid var(--color-white);
  color: var(--color-white);
  padding: 0.8rem 2rem;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
}

/* About Section Specific Styles */
.about-section {
  background-color: var(--color-dark-blue-section);
  padding: var(--padding-section);
}

.about-headline {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--margin-bottom-md);
  color: var(--color-white);
}

.about-headline .radiant-text-about {
  background: linear-gradient(to right, var(--color-accent-purple), var(--color-accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-accent-purple);
}

.about-lead {
  font-size: var(--font-size-xl);
  max-width: 900px;
  margin: 0 auto var(--margin-bottom-xxl) auto;
  line-height: 1.6;
  color: var(--color-light-grey);
}

.feature-card {
  background-color: var(--color-card-background);
  border-radius: var(--border-radius-md);
  padding: var(--margin-bottom-lg);
  text-align: center;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--color-subtle-border);
}

.feature-card i {
  font-size: 2.5rem;
  color: var(--color-accent-blue);
  margin-bottom: var(--margin-bottom-md);
}

.feature-card h4 {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--margin-bottom-sm);
  color: var(--color-white);
}

.feature-card p {
  font-size: var(--font-size-sm);
  color: var(--color-light-grey);
}

/* Journey Section Specific Styles */
.journey-section {
  padding: var(--padding-section);
  background-color: var(--color-dark-blue-body);
}

.journey-headline {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--margin-bottom-xl);
  color: var(--color-white);
  text-align: center;
}

.journey-text p {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  color: var(--color-light-grey);
  margin-bottom: var(--margin-bottom-lg);
}

.what-drives-us-card {
  background-color: var(--color-card-background);
  border-radius: var(--border-radius-md);
  padding: var(--margin-bottom-xl);
  border: 1px solid var(--color-subtle-border);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.journey-headline-card {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--margin-bottom-lg);
  color: var(--color-white);
}

.what-drives-us-card ul {
  list-style: none;
  padding: 0;
  width: 100%;
}

.what-drives-us-card li {
  font-size: var(--font-size-lg);
  color: var(--color-light-grey);
  margin-bottom: var(--margin-bottom-md);
  display: flex;
  align-items: flex-start;
}

.what-drives-us-card li i {
  color: var(--color-accent-blue);
  margin-right: 0.8rem;
  margin-top: 0.2rem;
  font-size: 1.3rem;
}

/* Contact Section Specific Styles */
.contact-section {
  background-color: var(--color-dark-blue-section);
  padding: var(--padding-section);
}

.contact-headline {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--margin-bottom-md);
  color: var(--color-white);
}

.contact-headline .radiant-text-contact {
  background: linear-gradient(to right, var(--color-accent-purple), var(--color-accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-accent-purple);
}

.contact-lead {
  font-size: var(--font-size-xl);
  max-width: 900px;
  margin: 0 auto var(--margin-bottom-xxl) auto;
  line-height: 1.6;
  color: var(--color-light-grey);
}

.contact-form-card,
.contact-info-card {
  background-color: var(--color-card-background);
  border-radius: var(--border-radius-md);
  padding: var(--margin-bottom-xl);
  border: 1px solid var(--color-subtle-border);
  height: 100%;
}

.form-label {
  font-weight: var(--font-weight-medium);
  color: var(--color-white);
  margin-bottom: var(--margin-bottom-sm);
}

.form-control {
  background-color: var(--color-dark-blue-body);
  border: 1px solid var(--color-subtle-border);
  color: var(--color-white);
  padding: 0.75rem var(--margin-bottom-md);
}

.form-control::placeholder {
  color: var(--color-medium-grey);
  opacity: 1;
}

.form-control:focus {
  background-color: var(--color-dark-blue-body);
  color: var(--color-white);
  border-color: var(--color-accent-blue);
  box-shadow: 0 0 0 0.25rem rgba(99, 102, 241, 0.25);
}

textarea.form-control {
  min-height: 150px;
}

.btn-send-message {
  background-color: var(--color-accent-blue);
  border: none;
  color: var(--color-white);
  padding: 0.75rem var(--margin-bottom-lg);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  width: 100%;
}

.contact-info-card h5 {
  font-size: var(--font-size-h5);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--margin-bottom-md);
  color: var(--color-white);
  display: flex;
  align-items: center;
}

.contact-info-card h5 i {
  font-size: 1.8rem;
  color: var(--color-accent-blue);
  margin-right: 0.8rem;
}

.contact-info-card p {
  font-size: var(--font-size-body);
  color: var(--color-light-grey);
  margin-bottom: var(--margin-bottom-md);
}

.contact-info-card a {
  color: var(--color-accent-blue);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
}

.contact-info-card a:hover {
  text-decoration: underline;
}

.work-with-us-card {
  background-color: var(--color-card-background);
  border-radius: var(--border-radius-md);
  padding: var(--margin-bottom-xl);
  border: 1px solid var(--color-subtle-border);
  margin-top: var(--margin-bottom-lg);
  height: auto;
}

.work-with-us-card h5 {
  font-size: var(--font-size-h5);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--margin-bottom-lg);
  color: var(--color-white);
}

.work-with-us-card ul {
  list-style: none;
  padding: 0;
}

.work-with-us-card li {
  font-size: var(--font-size-md);
  color: var(--color-light-grey);
  margin-bottom: var(--margin-bottom-md);
  display: flex;
  align-items: flex-start;
}

.work-with-us-card li i {
  color: var(--color-accent-blue);
  margin-right: 0.8rem;
  margin-top: 0.2rem;
  font-size: 1.3rem;
}

.btn-request-early-access {
  background-color: var(--color-accent-blue);
  border: none;
  color: var(--color-white);
  padding: 0.75rem var(--margin-bottom-lg);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  width: 100%;
  margin-top: var(--margin-bottom-lg);
}

.footer-section {
    background-color: var(--color-black);
    border-top: 1px solid var(--color-primary-blue);
}

.footer-section .navbar-brand {
    color: var(--color-accent-blue) !important;
}

.footer-section .footer-text p {
    color: var(--color-light-grey);
    font-size: 0.9rem;
}

/* Adjustments for smaller screens */
@media (max-width: 991px) {
  .hero-headline {
    font-size: var(--font-size-h2);
  }
  .hero-description {
    font-size: var(--font-size-body);
  }
  .btn-get-early-access,
  .btn-learn-more {
    width: 100%;
    margin-top: 1rem;
    margin-bottom: var(--margin-bottom-md);
    margin-right: 0;
  }
  .about-headline,
  .contact-headline {
    font-size: var(--font-size-h2);
    font-size: 2rem;
  }
  .about-lead,
  .contact-lead {
    font-size: var(--font-size-body);
  }
  .journey-headline {
    font-size: var(--font-size-h2); 
    font-size: 2rem;
  }
  .journey-text p,
  .what-drives-us-card li {
    font-size: var(--font-size-body);
  }
  .what-drives-us-card {
    margin-top: var(--margin-bottom-xl);
  }
   .navbar-collapse {
    position: absolute;
    top: 100%;               /* Right below the navbar */
    right: 1rem;             /* Align near the hamburger */
    left: auto !important;   /* Prevent default full-width behavior */
    width: auto;             /* Don’t stretch full width */
    background-color: var(--color-dark-blue-section); /* Match your design */
    border: 1px solid var(--color-subtle-border);
    border-radius: var(--border-radius-md);
    padding: 1rem;
    z-index: 9999;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
  }

  .navbar-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .navbar-nav .nav-item {
    margin-bottom: 0.75rem;
  }
}

.scroll-to-top-btn {
    display: none; 
    position: fixed; 
    bottom: 20px;
    right: 20px;
    z-index: 1000; 
    background-color: var(--color-accent-blue); 
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    width: 50px; 
    height: 50px;
    font-size: 1.5rem; 
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3); 
    transition: background-color 0.3s ease, transform 0.3s ease; 
}

.scroll-to-top-btn:hover {
    background-color: #5254d1; 
    transform: translateY(-3px); 
}

.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease-out;
}

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