/* ===== BASE ===== */
body {
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(to bottom right, #141e30, #243b55);
  color: #e8f1ff;
  margin: 0;
}

header {
  text-align: center;
  padding: 2rem;
  background: linear-gradient(135deg, #00c6ff, #0072ff);
  font-size: 1.8rem;
  font-weight: 700;
  color: white;
}

/* ===== YELLOW NAV BUTTONS ===== */
.assignment-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  background-color: #2c3442;
  padding: 1rem;
  border-bottom: 3px solid #111;
}

.assign-box {
  background: yellow;
  color: black;
  font-weight: bold;
  text-decoration: none;
  padding: 0.7rem 1rem;
  border-radius: 6px;
  display: block;
  min-width: 160px;
  text-align: center;
  transition: transform 0.2s;
}

.assign-box:hover {
  transform: scale(1.05);
}

/* ===== MAIN PANELS ===== */
.wrapper {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 1rem;
}

.panel {
  background: rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 0 15px rgba(0,0,0,0.3);
}

h2 {
  color: #6eb6ff;
}

/* ===== IMAGES ===== */
figure {
  text-align: center;
  margin-top: 1.5rem;
}

figure img {
  width: 300px;
  max-width: 100%;
  border-radius: 15px;
  box-shadow: 0 5px 14px rgba(0,0,0,0.5);
  margin-bottom: 0.5rem;
}

/* ===== GALLERY ===== */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.gallery figure {
  width: 250px;
}

.gallery img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 12px;
  transition: transform 0.3s;
}

.gallery img:hover {
  transform: scale(1.07);
}

/* ===== FOOTER ===== */
footer {
  text-align: center;
  background: rgba(0,0,0,0.55);
  padding: 1rem;
  color: #d9e5ff;
  margin-top: 3rem;
}

/* ===== RESPONSIVE ===== */

/* 📱 MOBILE */
@media (max-width: 599px) {
  .assign-box {
    width: 100%;
  }
  body {
    font-size: 1.05rem;
  }
}

/* 📲 TABLET */
@media (min-width: 600px) and (max-width: 899px) {
  .assign-box { width: auto; }
  body { font-size: 1.12rem; }
}

/* 🖥 DESKTOP */
@media (min-width: 900px) {
  .wrapper { max-width: 1300px; }
}