/* =========================
   Global Styles
========================= */
body {
  margin: 0;
  padding: 0;
  font-family: 'Poppins', sans-serif;
  color: white;
  text-align: center;
  background: linear-gradient(135deg, #6a11cb, #2575fc);
  background-attachment: fixed;
}

/* =========================
   Navbar
========================= */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  padding: 15px 0;
  z-index: 1000;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 90%;
  margin: 0 auto;
}

.navbar .logo img {
  height: 55px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover,
.nav-links .active {
  color: #ffdd57;
}

/* =========================
   Hero Section
========================= */
.hero-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem;
  margin-top: 100px; /* space below fixed navbar */
}

.hero-section h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero-section p {
  font-size: 1.2rem;
  max-width: 700px;
}

.cta-button {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 30px;
  background-color: #ffdd57;
  color: #1a1a1a;
  text-decoration: none;
  font-weight: 600;
  border-radius: 8px;
  transition: transform 0.3s;
}

.cta-button:hover {
  transform: scale(1.05);
}

/* =========================
   Slides / Presentation
========================= */
.slides {
  margin-top: 120px;
  padding: 2rem;
}

.slide {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  margin-bottom: 2rem;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  text-align: left;
}

.slide h2, .slide h3 {
  margin-top: 0;
}

.slide.purple {
  border-left: 5px solid #d177ff;
}

.slide.blue {
  border-left: 5px solid #4db8ff;
}

.slide p, .slide ul {
  margin: 10px 0;
}

.slide ul {
  padding-left: 20px;
}

.slide ul li {
  margin-bottom: 8px;
}

/* =========================
   Program Cards (on Index) 
========================= */
.programs {
  padding: 40px 20px;
  max-width: 1100px;
  margin: 0 auto;
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.program-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 20px;
  text-align: left;
  transition: transform 0.3s, background 0.3s;
}

.program-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.2);
}

.program-card h3 {
  margin-top: 0;
}

.program-link {
  color: #ffdd57;
  text-decoration: none;
  font-weight: 600;
}

/* =========================
   Contact Section
========================= */
.contact-card {
  display: block;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 40px;
  max-width: 600px;
  margin: 0 auto;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.contact-email {
  font-size: 1.3em;
  font-weight: 600;
  color: #ffdd57;
}

/* =========================
   Back to Home Button
========================= */
.cta-button-back {
  display: inline-block;
  margin: 30px auto;
  padding: 12px 30px;
  background-color: #ffdd57;
  color: #1a1a1a;
  text-decoration: none;
  font-weight: 600;
  border-radius: 8px;
  transition: transform 0.3s;
}

.cta-button-back:hover {
  transform: scale(1.05);
}

/* =========================
   Typography
========================= */
h2 {
  font-size: 2.4em;
  margin-bottom: 10px;
}

h3 {
  font-size: 1.8em;
}

p {
  font-size: 1.1em;
  margin-bottom: 20px;
  color: #f0f0f0;
}

/* =========================
   Footer
========================= */
footer {
  margin-top: 80px;
  padding: 20px;
  background: rgba(0, 0, 0, 0.4);
  font-size: 0.9em;
}