:root {
  --pink: #ec407a;
  --pink-light: #f48fb1;
  --dark: #131112;
  --white: #ffffff;
}

/* Layout */
html, body {
  margin: 0;
  padding: 0;
  font-family: 'Poppins', sans-serif;
  background-color: var(--pink);
  color: var(--white);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: var(--dark);
  padding: 1rem 0;
  text-align: center;
}

header .logo {
  font-size: 3rem;
  margin: 0;
}

nav a {
  color: var(--white);
  margin: 0 15px;
  text-decoration: none;
  font-weight: 600;
}

nav a:hover, nav a.active {
  color: var(--pink-light);
}

main {
  flex: 1;
  text-align: center;
  padding: 20px;
}

/* Sections */
section {
  display: none;
  padding: 40px 20px;
}

section.active {
  display: block;
}

/* Banner */
.banner {
  background-color: var(--dark);
  color: var(--pink-light);
  padding: 50px 20px;
  border-radius: 15px;
  margin-bottom: 30px;
}

.banner h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.banner p {
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.banner .interactive {
  background-color: var(--pink-light);
  color: var(--dark);
  padding: 15px 30px;
  font-size: 1.2rem;
  border-radius: 10px;
  text-decoration: none;
  display: inline-block;
  transition: opacity 0.3s;
}

.banner .interactive:hover {
  opacity: 0.8;
}

/* Buttons */
.interactive {
  background-color: var(--dark);
  color: var(--white);
  padding: 12px 25px;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  font-size: 1.1rem;
  transition: background 0.3s;
}

.interactive:hover {
  background-color: var(--pink-light);
}

/* Footer at bottom */
footer {
  background-color: var(--dark);
  color: var(--white);
  padding: 20px 10px;
  text-align: center;
  margin-top: auto;
}

footer a {
  color: var(--pink-light);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

footer ul {
  list-style: none;
  padding: 0;
}
footer li {
  margin: 5px 0;
}