/* =======================
   Global Styles
======================= */
body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f7f6;
  color: #1b5e20;
  line-height: 1.6;
}

/* =======================
   Navbar
======================= */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #2e7d32;
  padding: 0.5rem 2rem;
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: bold;
  letter-spacing: 0.5px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.nav-links li a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  transition: background 0.2s, transform 0.2s;
}

.nav-links li a:hover {
  background: #1b5e20;
  transform: translateY(-1px);
}

/* =======================
   Main Content
======================= */
.main-content {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}

/* Heading */
h2 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  font-weight: bold;
  color: #2e7d32;
}

/* Status Text */
#userStatus, #status {
  font-weight: 600;
  margin-bottom: 20px;
  font-size: 1.1rem;
  color: #1b5e20;
}

/* Per-category progress */
.progress-list {
  margin: 1rem 0;
  padding: 0;
  list-style: none;
}

.progress-list li {
  background: #e8f5e9;
  margin: 5px 0;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  color: #2e7d32;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* =======================
   Button Styling
======================= */
button {
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: bold;
  color: #fff;
  background-color: #2e7d32;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
}

button:hover:enabled {
  background-color: #1b5e20;
  transform: translateY(-2px);
  box-shadow: 0 0 12px rgba(46,125,50,0.5);
}

button:disabled {
  cursor: not-allowed;
  background-color: #a5d6a7;
  color: #ffffffcc;
  box-shadow: none;
}

/* =======================
   Certificate Preview (Optional)
======================= */
#certPreview {
  margin-top: 2rem;
  max-width: 100%;
  border: 2px dashed #2e7d32;
  border-radius: 12px;
  padding: 10px;
  background: #fff;
  display: none; /* Show with JS if preview is implemented */
}

/* =======================
   Responsive
======================= */
@media screen and (max-width: 600px) {
  body {
    padding: 15px;
  }

  h2 {
    font-size: 1.6rem;
  }

  button {
    padding: 10px 20px;
    font-size: 0.95rem;
  }

  #userStatus, #status {
    font-size: 1rem;
  }

  .nav-links {
    gap: 0.6rem;
  }

  .nav-links li a {
    padding: 0.3rem 0.5rem;
    font-size: 0.9rem;
  }
}


/* =======================
   Extra Responsive CSS
======================= */

/* Medium devices (tablets & small laptops) */
@media screen and (max-width: 900px) {
  h2 {
    font-size: 1.8rem;
  }

  button {
    padding: 12px 22px;
    font-size: 0.95rem;
  }

  .nav-links {
    gap: 0.8rem;
  }

  .main-content {
    padding: 1.5rem;
  }
}

/* Small devices (phones under 600px) */
@media screen and (max-width: 600px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.6rem 1rem;
  }

  .nav-logo {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .nav-links li a {
    font-size: 0.85rem;
    padding: 0.25rem 0.5rem;
  }

  h2 {
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
  }

  #userStatus, #status {
    font-size: 0.9rem;
    margin-bottom: 15px;
  }

  button {
    width: 100%;
    max-width: 300px;
    font-size: 0.9rem;
    padding: 10px 18px;
  }

  .progress-list li {
    font-size: 0.85rem;
    padding: 6px 10px;
  }

  .main-content {
    padding: 1rem;
  }
}

/* Very small devices (phones under 400px) */
@media screen and (max-width: 400px) {
  h2 {
    font-size: 1.3rem;
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links li a {
    font-size: 0.8rem;
    padding: 0.2rem 0.4rem;
  }

  #userStatus, #status {
    font-size: 0.85rem;
  }

  button {
    font-size: 0.85rem;
    padding: 8px 16px;
  }
}