:root {
  /* Colors */
  --midnight: #150067;
  --periwinkle: #7496FF;
  --air: #F6F9FF;
  --calm-blue: #3D94FE;
  --skyblue: #98DEFF;
  
  /* Gradients */
  --gradient-air: linear-gradient(135deg, #E5EBFF, #FFFFFF);
  --gradient-mist: linear-gradient(135deg, #FFFFFF, #F6F9FF);
  --gradient-sky: linear-gradient(135deg, #D0DEFF, #E2FFFF);
}

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

body {
  font-family: 'Space Grotesk', sans-serif;
  background-color: var(--air);
  color: var(--midnight);
  overflow-x: hidden;
  scroll-behavior: smooth;
  line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
  line-height: 1.2;
}

h1 {
  font-size: 4rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

p {
  font-size: 1.125rem;
  opacity: 0.8;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 4rem;
  z-index: 100;
  background: rgba(246, 249, 255, 0.8);
  backdrop-filter: blur(10px);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--midnight);
  text-decoration: none;
}

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

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

.nav-links a:hover {
  opacity: 0.6;
}

/* Dropdown */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: -20px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  min-width: 220px;
  box-shadow: 0 10px 30px rgba(21, 0, 103, 0.1);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  padding: 1rem 0;
  z-index: 1000;
}

.dropdown:hover .dropdown-menu {
  display: flex;
  flex-direction: column;
}

.dropdown-menu a {
  padding: 0.75rem 1.5rem;
  display: block;
  font-size: 0.95rem;
  transition: background 0.3s ease, padding-left 0.3s ease;
}

.dropdown-menu a:hover {
  background: var(--gradient-mist);
  padding-left: 2rem;
  opacity: 1;
  color: var(--calm-blue);
}

/* Sections */
.section {
  min-height: 100vh;
  padding: 8rem 4rem 4rem;
  scroll-margin-top: 8rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Hero Section */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
}

.hero-content h1 {
  margin-bottom: 1rem;
}

/* Ambient Ring Animation */
.ring-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.ring {
  position: absolute;
  border-radius: 50%;
  background: transparent;
  box-shadow: 
    0 0 60px rgba(61, 148, 254, 0.2),
    inset 0 0 60px rgba(255, 255, 255, 0.5),
    inset 0 0 20px rgba(116, 150, 255, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.ring-1 {
  width: 45vw;
  height: 45vw;
  max-width: 600px;
  max-height: 600px;
  top: -15%;
  left: -10%;
  animation: breathe 8s ease-in-out infinite alternate, float1 20s ease-in-out infinite;
  background: var(--gradient-sky);
  opacity: 0.8;
}

.ring-2 {
  width: 55vw;
  height: 55vw;
  max-width: 800px;
  max-height: 800px;
  bottom: -20%;
  right: -15%;
  animation: breathe 10s ease-in-out infinite alternate-reverse, float2 25s ease-in-out infinite;
  border: 2px solid rgba(116, 150, 255, 0.3);
}

.ring-3 {
  width: 30vw;
  height: 30vw;
  max-width: 400px;
  max-height: 400px;
  top: 30%;
  left: 55%;
  animation: breathe 12s ease-in-out infinite alternate, float3 18s ease-in-out infinite;
  border: 1px solid rgba(61, 148, 254, 0.4);
  background: var(--gradient-mist);
}

@keyframes breathe {
  0% {
    transform: scale(0.95);
    box-shadow: 
      0 0 40px rgba(61, 148, 254, 0.1),
      inset 0 0 40px rgba(255, 255, 255, 0.3);
  }
  100% {
    transform: scale(1.05);
    box-shadow: 
      0 0 100px rgba(61, 148, 254, 0.4),
      inset 0 0 80px rgba(255, 255, 255, 0.7);
  }
}

@keyframes float1 {
  0% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(3vw, -4vh) scale(1.02); }
  66% { transform: translate(-2vw, 3vh) scale(0.98); }
  100% { transform: translate(0, 0) scale(1); }
}

@keyframes float2 {
  0% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-4vw, 5vh) scale(1.05); }
  66% { transform: translate(3vw, -3vh) scale(0.95); }
  100% { transform: translate(0, 0) scale(1); }
}

@keyframes float3 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(5vw, 5vh) scale(1.1); }
  100% { transform: translate(0, 0) scale(1); }
}

/* About Section */
.about-content {
  max-width: 800px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about-content h3 {
  font-size: 1.5rem;
  color: var(--midnight);
  margin-bottom: 0.5rem;
}

.about-content ul {
  list-style-position: inside;
  padding-left: 1rem;
}

.about-content li {
  font-size: 1.125rem;
  opacity: 0.8;
  margin-bottom: 0.5rem;
}

.lead-text {
  font-size: 1.25rem;
  font-weight: 500;
  opacity: 0.9;
}

.highlight-text {
  font-weight: 600;
  color: var(--calm-blue);
  opacity: 1;
  font-size: 1.25rem;
  margin-top: 1rem;
}

/* How It Works Section */
.how-it-works-container {
  display: flex;
  gap: 6rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.hiw-intro {
  flex: 1;
  min-width: 300px;
}

.hiw-intro h2 {
  font-size: 3.5rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
  line-height: 1.1;
  color: var(--midnight);
}

.hiw-subtitle {
  font-size: 2rem;
  color: var(--midnight);
  margin-bottom: 2rem;
  font-weight: 600;
}

.hiw-intro p {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.hiw-steps {
  flex: 1;
  min-width: 300px;
  position: relative;
}

.hiw-steps::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: var(--midnight);
  z-index: 0;
}

.step {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
  position: relative;
  z-index: 1;
}

.step:last-child {
  margin-bottom: 0;
}

.step-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--midnight);
  background: var(--air);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 4px solid var(--periwinkle);
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.step-content h4 {
  font-size: 1.5rem;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  font-weight: 700;
  color: var(--midnight);
}

.step-content p {
  font-size: 1.1rem;
  opacity: 0.9;
}

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

.zone-card {
  background: var(--gradient-mist);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(21, 0, 103, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.zone-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 30px 60px rgba(21, 0, 103, 0.1);
}

.zone-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--calm-blue);
}

/* Footer / Contact */
.contact {
  background-color: var(--midnight);
  color: var(--air);
  text-align: center;
  min-height: auto;
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.contact h2 {
  color: var(--air);
}

.contact p {
  opacity: 0.9;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--gradient-sky);
  color: var(--midnight);
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(152, 222, 255, 0.3);
}

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    padding: 1rem 2rem;
  }
  
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  
  .section {
    padding: 6rem 2rem 2rem;
  }
  
  .nav-links {
    display: none; /* simple mobile menu fallback */
  }
}