html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: "Segoe UI", sans-serif;
  margin: 0;
  background: background-color: #f4f4fa;

  color: #333;
}

main {
  flex: 1;
}

header {
  background-color: #6c4a9c;
  padding: 20px 40px;
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header h1 {
  margin: 0;
  font-size: 24px;
}

#user-info a,
#user-info span {
  background-color: #fff;
  color: #6c4a9c;
  padding: 8px 16px;
  border-radius: 20px 0 0 20px;
  font-weight: bold;
  font-size: 14px;
  text-decoration: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  transition: background-color 0.3s ease;
  margin: 0;
  display: inline-flex;
  align-items: center;
  border: solid 2px;
}

#user-info a:hover {
  background-color: #ffccff;
}

#logout-btn {
  background: linear-gradient(to right, #ff4b4b, #d32f2f);
  color: white;
  padding: 8px 16px;
  font-size: 17px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  margin: 0;
  height: 32px; 
  line-height: 16px; 
  display: inline-flex;
  align-items: center;
}
#logout-btn:hover {
  background: linear-gradient(to right, #ff6b6b, #f44336);
}
nav {
  background-color: #eee;
  display: flex;
  justify-content: center;
  gap: 30px;
  padding: 12px 0;
  font-weight: bold;
  font-size: 16px;
}
nav a {
  color: #444;
  text-decoration: none;
}
nav a:hover {
  color: #4a00e0;
}
.background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
  filter: brightness(0.7);
}

.hero {
  text-align: center;
  padding: 80px 20px;
}
.hero h2 {
  font-size: 32px;
  color: #4a00e0;
}
.hero p {
  font-size: 18px;
  max-width: 800px;
  margin: 20px auto;
  line-height: 1.6;
}
.hero button {
  background: linear-gradient(to right, #8e2de2, #4a00e0);
  color: white;
  padding: 14px 28px;
  font-size: 16px;
  border: none;
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.hero button:hover {
  transform: scale(1.05);
  background: linear-gradient(to right, #4a00e0, #8e2de2);
}
footer {
  text-align: center;
  padding: 20px;
  background-color: #f1f1f1;
  color: #777;
  margin-top: 60px;
}
#popup {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.4);
}
.popup-content {
  background: #fff;
  margin: 15% auto;
  padding: 20px;
  border-radius: 10px;
  width: 90%;
  max-width: 400px;
  text-align: center;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  position: relative;
}
.popup-content h3 {
  margin-top: 0;
}
.popup-content button {
  margin: 10px;
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  min-width: 120px;
}
.popup-content .close {
  position: absolute;
  top: 10px;
  right: 14px;
  font-size: 20px;
  cursor: pointer;
  color: #aaa;
}
.popup-content .close:hover {
  color: #000;
}
.popup-content .login {
  background-color: #6c4a9c;
  color: white;
}
.popup-content .signup {
  background-color: #ffb84d;
}

@media screen and (max-width: 992px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
  }

  #user-info {
    margin-top: 10px;
    align-self: flex-end;
  }

  nav {
    flex-direction: column;
    gap: 12px;
    font-size: 15px;
    padding: 10px 0;
  }

  .hero h2 {
    font-size: 28px;
  }

  .hero p {
    font-size: 16px;
    padding: 0 10px;
  }

  .hero button {
    padding: 12px 24px;
    font-size: 15px;
  }
}
@media screen and (max-width: 768px) {
  header h1 {
    font-size: 20px;
  }

  #user-info a,
  #user-info span {
    font-size: 14px;
    padding: 6px 12px;
  }

  .hero {
    padding: 60px 10px;
  }

  .hero h2 {
    font-size: 24px;
  }

  .hero p {
    font-size: 15px;
  }

  .popup-content {
    margin: 25% auto;
    width: 95%;
  }
}

@media screen and (max-width: 480px) {
  nav {
    font-size: 14px;
  }

  .hero h2 {
    font-size: 20px;
  }

  .hero p {
    font-size: 14px;
  }

  .hero button {
    width: 100%;
    padding: 12px;
  }

  .popup-content button {
    min-width: 100%;
    margin: 8px 0;
  }

  .popup-content {
    margin: 30% auto;
    padding: 16px;
  }

  .popup-content h3 {
    font-size: 18px;
  }
}