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

body {
  font-family: "Inter", sans-serif;
  background: #f9fbfd;
  color: #1e2a41;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* GLASS MORPHISM + PARALLAX BACKGROUND LAYER */
.parallax-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background: linear-gradient(135deg, #e9f0f5 0%, #d9e2ec 100%);
  background-attachment: fixed;
}

.parallax-bg::before {
  content: "";
  position: absolute;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  background: radial-gradient(
    circle at 20% 40%,
    rgba(255, 245, 215, 0.3) 0%,
    rgba(210, 230, 250, 0.1) 80%
  );
  animation: slowDrift 26s infinite alternate;
}

@keyframes slowDrift {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  100% {
    transform: translate(2%, 1%) rotate(1deg);
  }
}

/* Glassmorphism core */
.glass-card,
nav,
.footer,
.course-card,
.contact-card,
.hero-content,
.stat-card {
  background: rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

nav {
  position: fixed;
  top: 20px;
  left: 5%;
  width: 90%;
  z-index: 1000;
  padding: 0.8rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.35);
  border-radius: 60px;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.1);
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, #2c3e50, #1a2a3f);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.logo-text h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #1e2f4b, #0f1a2c);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.logo-text p {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 1px;
}

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

.nav-links a {
  text-decoration: none;
  font-weight: 600;
  color: #1f2e48;
  transition: 0.2s;
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: #b45309;
  transform: translateY(-2px);
}

.cta-btn {
  background: #1e2f4b;
  color: white !important;
  padding: 0.5rem 1.3rem;
  border-radius: 40px;
  transition: 0.2s;
  box-shadow: 0 5px 12px rgba(0, 0, 0, 0.1);
}

.cta-btn:hover {
  background: #b45309;
  transform: scale(1.02);
}

/* hero section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 7rem 2rem 5rem;
}

.hero-content {
  max-width: 800px;
  padding: 2.5rem 2rem;
  backdrop-filter: blur(16px);
  background: rgba(255, 255, 240, 0.25);
}

.hero-content h1 {
  font-size: 3.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, #1e2f4b, #4b2e1a);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1rem;
}

.tagline {
  font-size: 1.2rem;
  letter-spacing: 1px;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.est {
  font-weight: 700;
  margin: 0.5rem 0;
  color: #2d3e5f;
}

.hero-btns {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
  margin-top: 2rem;
}

.btn-primary,
.btn-outline {
  padding: 0.9rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  transition: 0.2s;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: #1e2f4b;
  color: white;
  border: none;
}

.btn-primary:hover {
  background: #b45309;
  transform: translateY(-3px);
}

.btn-outline {
  border: 1.5px solid #1e2f4b;
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(5px);
  color: #1e2f4b;
}

.btn-outline:hover {
  background: #1e2f4b;
  color: white;
}

/* section titles */
.section-title {
  text-align: center;
  font-size: 2.6rem;
  font-weight: 700;
  margin-bottom: 3rem;
  position: relative;
  background: linear-gradient(120deg, #1e2f4b, #2c3e66);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
}

/* courses grid */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.course-card {
  padding: 1.8rem;
  text-align: center;
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(12px);
  transition: all 0.3s ease;
  cursor: pointer;
}

.course-card:hover {
  transform: translateY(-12px);
  background: rgba(255, 255, 255, 0.5);
  box-shadow: 0 20px 35px -12px rgba(0, 0, 0, 0.2);
}

.course-card i {
  font-size: 2.8rem;
  background: linear-gradient(145deg, #1e2f4b, #b45309);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1rem;
}

.course-card h3 {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

/* stats / features glass */
.features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin: 4rem 0;
}

.stat-card {
  padding: 1.5rem 2rem;
  text-align: center;
  min-width: 180px;
  background: rgba(245, 245, 250, 0.4);
}

.stat-card i {
  font-size: 2rem;
  color: #b45309;
}

/* parallax ai image section (AI-like generated visual) */
.ai-parallax {
  background:
    linear-gradient(120deg, rgba(30, 47, 75, 0.65), rgba(20, 35, 55, 0.7)),
    url("https://picsum.photos/id/104/1920/600?grayscale");
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
  padding: 5rem 2rem;
  border-radius: 3rem;
  margin: 3rem 0;
  text-align: center;
  color: white;
  backdrop-filter: blur(2px);
}

.ai-parallax h2 {
  font-size: 2.5rem;
  font-weight: 700;
  text-shadow: 0 2px 15px rgba(0, 0, 0, 0.3);
}

/* contact form */
.contact-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  background: rgba(255, 255, 245, 0.2);
  backdrop-filter: blur(8px);
  border-radius: 2rem;
  padding: 2rem;
  margin-top: 2rem;
}

.contact-info,
.contact-form {
  flex: 1;
}

.contact-info p {
  margin: 1rem 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.9rem;
  margin-bottom: 1rem;
  border: none;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 2rem;
  backdrop-filter: blur(4px);
  font-family: inherit;
  outline: none;
}

.contact-form button {
  background: #1e2f4b;
  color: white;
  padding: 0.9rem 2rem;
  border: none;
  border-radius: 3rem;
  font-weight: bold;
  cursor: pointer;
  transition: 0.2s;
}

.contact-form button:hover {
  background: #b45309;
}

footer {
  margin-top: 5rem;
  text-align: center;
  padding: 2rem;
  border-radius: 2rem 2rem 0 0;
  background: rgba(20, 30, 45, 0.5);
  backdrop-filter: blur(12px);
  color: #f0f0f0;
}

.mobile-menu {
  display: none;
}

@media (max-width: 850px) {
  .nav-links {
    display: none;
  }
  .mobile-menu {
    display: block;
    font-size: 1.8rem;
    cursor: pointer;
  }
  .hero-content h1 {
    font-size: 2.5rem;
  }
  nav {
    padding: 0.6rem 1.2rem;
  }
  .mobile-nav-active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem 2rem;
    border-radius: 1.5rem;
    gap: 1rem;
    z-index: 100;
    box-shadow: 0 8px 28px black;
  }
  .mobile-nav-active a {
    color: #1e2f4b;
    font-weight: 600;
  }
}

.whatsapp-float {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: #25d366;
  color: white;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  z-index: 99;
  transition: 0.2s;
}

.whatsapp-float:hover {
  transform: scale(1.08);
  background: #128c7e;
}