:root {
  --primary-blue: #00a8ff;
  --dark-bg: #111;
  --darker-bg: #000;
  --light-text: #fff;
  --gray-text: #888;
  --max-width: 1200px;
  --section-padding: 4rem;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  margin: 0;
  padding: 0;
  background: var(--dark-bg);
  color: var(--light-text);
  line-height: 1.6;
}

/* Layout & Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header & Navigation */
header {
  background: var(--darker-bg);
  padding: 1.5em 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 2rem;
}

nav ul li a {
  color: var(--light-text);
  text-decoration: none;
  transition: color 0.3s ease;
}

nav ul li a:hover {
  color: var(--primary-blue);
}

/* Main Content */
main {
  min-height: calc(100vh - 200px);
}

.about-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Main container structure */
.main-container {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
}

/* Hero Section */
.hero-section-container {
  position: relative;
  width: 100%;
}

.parallax-section {
  position: relative;
  min-height: 100vh;
  height: auto;
  overflow: visible;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 4rem 2rem;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  margin-bottom: 2rem;
}

.hero-title {
  font-size: 5rem;
  background: linear-gradient(45deg, var(--primary-blue), #80d0ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 2rem;
  color: var(--gray-text);
  margin-bottom: 3rem;
}

.hero-cards-container {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 2rem;
  justify-content: center;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-bottom: 4rem;
}

.hero-card {
  flex: 1;
  max-width: 350px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  padding: 1.5rem;
  backdrop-filter: blur(10px);
  transform: translateY(100%);
  opacity: 0;
  animation: slideUp 0.8s ease forwards;
}

.card-image {
  width: 100%;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-card h3 {
  color: var(--primary-blue);
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.hero-card p {
  color: var(--gray-text);
  font-size: 0.9rem;
  line-height: 1.4;
}

/* Animation delays for cards */
.hero-card:nth-child(1) {
  animation-delay: 0.2s;
}

.hero-card:nth-child(2) {
  animation-delay: 0.4s;
}

.hero-card:nth-child(3) {
  animation-delay: 0.6s;
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .hero-section-container {
    margin-bottom: 4rem;
  }

  .parallax-section {
    min-height: auto;
    height: auto;
  }

  .hero-cards-container {
    flex-direction: column;
    align-items: center;
    width: 100%;
    padding-bottom: 2rem;
    gap: 1.5rem;
  }

  .curtain-sections-container {
    margin-top: 2rem;
  }

  .curtain-section {
    min-height: auto;
    padding: 4rem 1rem;
  }

  .hero-title {
    font-size: 3rem;
  }

  .hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
  }

  .scroll-indicator {
    display: none;
  }

  .curtain-section {
    position: relative;
    margin-top: calc(-100% - 4rem);
  }
}

/* Timeline Section */
.timeline {
  padding: var(--section-padding) 0;
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.milestone {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 2rem;
  transition: transform 0.3s ease;
}

.milestone:hover {
  transform: translateY(-5px);
}

.milestone.completed {
  border-left: 4px solid var(--primary-blue);
}

.milestone.current {
  border-left: 4px solid #00ff88;
}

.milestone.future {
  border-left: 4px solid var(--gray-text);
}

.milestone-image {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 1rem;
}

/* Token Information */
.token-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  padding: var(--section-padding) 0;
}

.token-feature {
  text-align: center;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
}

.feature-image {
  width: 100%;
  max-width: 200px;
  margin-bottom: 1.5rem;
}

/* Call to Action */
.cta {
  text-align: center;
  padding: var(--section-padding) 0;
  background: linear-gradient(rgba(0, 168, 255, 0.1), transparent);
}

.cta-button {
  display: inline-block;
  padding: 1rem 2rem;
  background: var(--primary-blue);
  color: var(--light-text);
  text-decoration: none;
  border-radius: 30px;
  font-weight: bold;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 168, 255, 0.3);
}

/* Section Headers */
h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  text-align: center;
}

/* Footer */
.footer {
  background: var(--darker-bg);
  padding: 3rem 0;
  margin-top: auto;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer-section h3 {
  color: var(--light-text);
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--light-text);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.footer-links a:hover {
  opacity: 0.8;
  color: var(--primary-blue);
}

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

/* Responsive Images */
img {
  max-width: 100%;
  height: auto;
}

/* Media Queries */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero .subtitle {
    font-size: 1.2rem;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  .timeline-grid {
    grid-template-columns: 1fr;
  }
}

/* Logo Styling */
.logo a {
  color: var(--primary-blue);
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: bold;
}

/* Register Button */
.register-button {
  background: var(--primary-blue);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  color: var(--light-text) !important;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.register-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 168, 255, 0.3);
  color: var(--light-text) !important;
}

/* Hero Cards and Shine Effect */
.shine-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, var(--darker-bg), var(--dark-bg));
  overflow: hidden;
  z-index: 1;
}

.shine-background::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    135deg,
    transparent 0%,
    transparent 45%,
    rgba(255, 255, 255, 0.1) 48%,
    rgba(255, 255, 255, 0.2) 50%,
    rgba(255, 255, 255, 0.1) 52%,
    transparent 55%,
    transparent 100%
  );
  animation: shine 6s infinite;
  transform: translateX(-100%);
}

@keyframes shine {
  0% {
    transform: translateX(-100%);
  }
  80%, 100% {
    transform: translateX(100%);
  }
}

/* Hamburger Menu Styles */
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  position: relative;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
  z-index: 1001;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--light-text);
  margin: 2px 0;
  transition: 0.4s;
}

.mobile-login {
  display: none;
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    width: 100%;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--darker-bg);
    flex-direction: column;
    padding: 1rem;
    gap: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    z-index: 1000;
  }

  .nav-links.active {
    display: flex !important;
  }

  .nav-links li {
    width: 100%;
    text-align: center;
  }

  .mobile-login {
    display: flex;
    gap: 1rem;
    align-items: center;
  }

  .desktop-login {
    display: none;
  }

  /* When menu is open */
  .hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
  }

  /* Adjust existing nav styles for mobile */
  nav ul {
    flex-direction: column;
    gap: 1rem;
  }

  .register-button {
    display: inline-block;
    width: auto;
  }
}

.desktop-login {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-left: 1rem;
}

.desktop-login a {
  color: var(--light-text);
  text-decoration: none;
}

.mobile-login {
  display: none;
  gap: 1rem;
  align-items: center;
}

.mobile-login a {
  color: var(--light-text);
  text-decoration: none;
}

/* Update the nav links styling */
.nav-links a {
  color: var(--light-text);
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-links a:visited {
  color: var(--light-text);
}

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

/* Ensure mobile view maintains the same styling */
@media (max-width: 768px) {
  .nav-links a,
  .nav-links a:visited {
    color: var(--light-text);
  }
}

/* Remove curtain-related styles and add new section styles */
.sections-container {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 4rem;
  padding: 4rem 0;
}

.content-section {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 60vh;
}

.content-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1;
}

/* Specific section backgrounds */
.ultrasound-section {
  background-image: url('/images/ultrasound-waves-bg.jpg');
}

.ip-section {
  background-image: url('/images/blockchain-network-bg.jpg');
}

.join-section {
  background-image: url('/images/community-innovation-bg.jpg');
}

.section-content {
  position: relative;
  z-index: 2;
  text-align: center;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  width: 90%;
  max-width: 800px;
  margin: 0 auto;
  transition: all 0.3s ease;
}

/* Keep existing section-content styles for h2, p, img, and buttons */

/* Responsive adjustments */
@media (max-width: 1024px) {
  .sections-container {
    gap: 2rem;
    padding: 2rem 0;
  }

  .section-content {
    width: 85%;
    padding: 2rem;
  }
}

@media (max-width: 768px) {
  .section-content {
    width: 90%;
    max-width: 500px;
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .section-content {
    width: 95%;
    max-width: 400px;
    padding: 1rem;
  }
}

/* Global heading styles */
h1 {
  font-size: 4rem;
  background: linear-gradient(45deg, var(--primary-blue), #80d0ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
  margin-bottom: 1.5rem;
}

/* Responsive adjustments for h1 */
@media (max-width: 768px) {
  h1 {
    font-size: 3rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2.5rem;
  }
}

/* Hero specific h1 styles (if you want the hero to be even larger) */
.hero-title {
  font-size: 5rem;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 3.5rem;
  }
}

.hero-content p {
  font-size: 1.5rem;
  color: var(--gray-text);
  margin-bottom: 2rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Responsive adjustments for hero content paragraph */
@media (max-width: 768px) {
  .hero-content p {
    font-size: 1.2rem;
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .hero-content p {
    font-size: 1rem;
  }
}

/* Dashboard Styles */
.dashboard-container {
  max-width: var(--max-width);
  margin: 2rem auto;
  padding: 0 2rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.dashboard-section {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  padding: 2rem;
  backdrop-filter: blur(10px);
}

.info-card {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
}

.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.dashboard-button {
  display: inline-block;
  padding: 1rem 2rem;
  background: var(--primary-blue);
  color: var(--light-text);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.dashboard-button:hover {
  background: #0088cc;
  transform: translateY(-2px);
}

.error-message {
  background: rgba(255, 0, 0, 0.1);
  color: #ff4444;
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 2rem;
}

@media (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}