:root {
  --primary: #2563EB;
  --secondary: #1E293B;
  --accent: #F59E0B;
  --text: #111827;
  --background: #F9FAFB;
}

/* GLOBAL */
body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: var(--background);
  color: var(--text);
}

/* NAVBAR */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 18px 50px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background: transparent;
  transition: 0.3s ease;
  z-index: 999;
}

.navbar.scrolled {
  background: white;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.logo {
  font-size: 1.7rem;
  font-weight: bold;
  color: var(--secondary);
}

.logo span {
  color: var(--primary);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 30px;
  z-index: 1000;
}

.nav-links li a {
  text-decoration: none;
  font-weight: 500;
  color: var(--text);
}

.cta-btn {
  background: var(--primary);
  color: white;
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.3s ease;
}

.cta-btn:hover {
  background: #1d4ed8;
}

/* HAMBURGER MENU */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  width: 26px;
  height: 3px;
  background: var(--secondary);
  transition: 0.3s;
}

/* HERO */
.hero {
  min-height: 100vh;
  padding: 120px 50px 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(135deg, #dbeafe, #eff6ff);
  gap: 50px;
}

.hero-text {
  max-width: 500px;
}

.hero-text h1 {
  font-size: 2.9rem;
  margin-bottom: 15px;
  color: var(--secondary);
}

.hero-text p {
  font-size: 1.1rem;
  margin-bottom: 25px;
  color: var(--text);
}

.hero-btn {
  background: var(--accent);
  color: white;
  padding: 12px 25px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: bold;
}

/* FLOATING HERO ILLUSTRATION */
.illustration {
  width: 260px;
  height: 260px;
  position: relative;
}

/* Floating circles */
.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(0.5px);
  animation: float 4s infinite ease-in-out alternate;
}

.s1 {
  width: 70px;
  height: 70px;
  top: 0;
  right: 10px;
  background: radial-gradient(circle, #f59e0b, #f59e0bbb);
  animation-duration: 5s;
}

.s2 {
  width: 60px;
  height: 60px;
  top: 50px;
  left: 0;
  background: radial-gradient(circle, #22c55e, #22c55e99);
  animation-duration: 6s;
}

.s3 {
  width: 55px;
  height: 55px;
  bottom: 20px;
  right: 40px;
  background: radial-gradient(circle, #2563eb, #2563eb88);
  animation-duration: 4s;
}

.bar {
  width: 60px;
  height: 140px;
  left: 50%;
  top: 35%;
  transform: translateX(-50%);
  background: linear-gradient(180deg, #2563eb, #1e40af);
  border-radius: 20px;
  box-shadow: 0px 10px 20px #00000022;
  animation: pulse 3s infinite ease-in-out alternate;
}

/* Animations */
@keyframes float {
  0% {
    transform: translateY(0px) scale(1);
  }
  
  100% {
    transform: translateY(-15px) scale(1.05);
  }
}

@keyframes pulse {
  0% {
    transform: translateX(-50%) scale(1);
  }
  
  100% {
    transform: translateX(-50%) scale(1.07);
  }
}

/* HAMBURGER X ANIMATION */
.menu-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translateY(8px);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translateY(-8px);
}

/* SCROLL ANIMATION */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: 0.8s ease;
}

.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* NAVBAR LEVELS */
.navbar.level1 {
  background: rgba(255,255,255,0.3);
  backdrop-filter: blur(4px);
}

.navbar.level2 {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(6px);
}

.navbar.level3 {
  background: white;
  box-shadow: 0px 4px 15px rgba(0,0,0,0.15);
}

/* MOBILE */
@media (max-width:850px) {
  
  .menu-toggle {
    display: flex;
  }
  
  .nav-links {
    display: none;
    flex-direction: column;
    background: white;
    padding: 20px;
    position: absolute;
    right: 20px;
    top: 70px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border-radius: 10px;
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .navbar {
    padding: 15px 25px;
  }
  
  .hero {
    flex-direction: column-reverse;
    text-align: center;
  }
  
  .hero-img img {
    width: 300px;
  }
}