/* BASE STYLES */
* {
  box-sizing: border-box;
}
body {
  font-family: 'Roboto', Arial, sans-serif;
  background: #f4f6f8;
  margin: 0;
  padding: 0;
  color: #333;
  text-align: center;
}
h1, h2, h3 {
  margin: 0;
  padding: 0;
}

/* HEADER / BANNER */
header {
  background: linear-gradient(135deg, #3498db, #2c3e50);
  color: white;
  padding: 50px 20px 30px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}
header .banner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}
header .banner img {
  width: 80px;
  height: 80px;
}
header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: 2px;
}
header p {
  font-size: 1.1rem;
  opacity: 0.85;
}

/* SECTION HEADINGS */
section {
  padding: 40px 20px;
}
h2 {
  color: #2c3e50;
  margin-bottom: 30px;
  font-size: 1.8rem;
}

/* TEAM PROFILES */
.team {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
  justify-items: center;
}
.card {
  background: white;
  border-radius: 15px;
  padding: 20px;
  width: 100%;
  max-width: 250px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 25px rgba(0,0,0,0.2);
}
.card img {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  margin-bottom: 15px;
  object-fit: cover;
}
.role {
  color: #3498db;
  font-weight: bold;
  margin-bottom: 10px;
}
.card p {
  font-size: 0.9rem;
  margin: 5px 0;
}

/* SUMMARY BOXES */
.summary {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}
.summary-box {
  background: white;
  width: 180px;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 6px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.summary-box:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}
.summary-box h3 {
  font-size: 1.8rem;
  color: #2c3e50;
  margin-bottom: 8px;
}
.summary-box p {
  font-size: 1rem;
  color: #666;
}

/* Progress Bars */
.progress-bar {
  background: #e0e0e0;
  border-radius: 10px;
  height: 12px;
  width: 100%;
  margin-top: 5px;
  overflow: hidden;
}
.progress-fill {
  background: #3498db;
  height: 100%;
  width: 0%;
  border-radius: 10px;
  transition: width 1s ease-in-out;
}

/* TABLE */
table {
  width: 95%;
  margin: auto;
  border-collapse: collapse;
  background: white;
  box-shadow: 0 6px 15px rgba(0,0,0,0.05);
  border-radius: 12px;
  overflow: hidden;
}
th, td {
  padding: 12px 15px;
  border-bottom: 1px solid #ddd;
  font-size: 0.95rem;
}
th {
  background: #3498db;
  color: white;
  text-align: center;
}
td {
  text-align: center;
}
tr:hover {
  background: #f0f8ff;
}

/* PIE & BAR CHART CANVAS */
#aiPieChart, #memberBarChart {
  margin: 30px auto;
  max-width: 600px;
}

/* FOOTER */
footer {
  background: #2c3e50;
  color: white;
  padding: 20px;
  margin-top: 30px;
}

/* RESPONSIVE */
@media(max-width:600px){
  .summary {
    flex-direction: column;
    gap: 15px;
  }
}

/* NAVBAR */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(135deg, #2c3e50, #3498db);
  box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.nav-container {
  max-width: 1200px;
  margin: auto;
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: white;
  font-weight: 700;
  font-size: 1.2rem;
}

.nav-logo img {
  width: 30px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 25px;
  margin: 0;
  padding: 0;
}

.nav-links li a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  position: relative;
}

.nav-links li a::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  background: white;
  bottom: -4px;
  left: 0;
  transition: width 0.3s ease;
}

.nav-links li a:hover::after {
  width: 100%;
}

/* MOBILE MENU */
.menu-toggle {
  display: none;
  font-size: 1.8rem;
  color: white;
  cursor: pointer;
}

/* RESPONSIVE NAV */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 60px;
    right: 0;
    background: linear-gradient(135deg, #2c3e50, #3498db);
    flex-direction: column;
    width: 220px;
    padding: 20px;
    gap: 15px;
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    box-shadow: -4px 8px 20px rgba(0,0,0,0.2);
  }

  .nav-links.active {
    transform: translateX(0);
  }
}

.summary-box.highlight {
  border: 2px solid #2ecc71;
}

.summary-box.highlight h3 {
  color: #2ecc71;
}


#loadingScreen {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  color: #fff;
  text-align: center;
  font-family: 'Roboto', sans-serif;
}

.loader-content {
  animation: fadeIn 1.2s ease;
}

.uni {
  font-size: 1.2rem;
  letter-spacing: 1px;
  opacity: 0.85;
}

.dept {
  font-size: 1rem;
  opacity: 0.8;
}

.program {
  font-size: 1rem;
  margin-bottom: 15px;
  color: #9ddcff;
}

.team-name {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: 4px;
  margin: 15px 0 25px;
  background: linear-gradient(90deg, #00c6ff, #0072ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Loader bar */
.loader-bar {
  width: 260px;
  height: 6px;
  background: rgba(255,255,255,0.2);
  border-radius: 10px;
  overflow: hidden;
  margin: auto;
}

.loader-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #00c6ff, #0072ff);
  animation: loading 2.6s linear forwards;
}

/* Animations */
@keyframes loading {
  to { width: 100%; }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Logos */
.uni-logo {
  width: 70px;
  margin-bottom: 10px;
  opacity: 0.9;
}

.team-logo {
  width: 90px;
  margin: 15px 0 10px;
  filter: drop-shadow(0 6px 12px rgba(0,0,0,0.4));
}

/* Responsive */
@media (max-width: 600px) {
  .team-logo { width: 75px; }
  .uni-logo { width: 55px; }
}

/* SURVEY IMAGE SECTION */
#surveyImages {
  background: #ffffff;
}

.section-desc {
  max-width: 700px;
  margin: 0 auto 30px;
  font-size: 1rem;
  color: #555;
}

.survey-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  padding: 0 20px;
}

.survey-card {
  background: #f9fbfd;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 18px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.survey-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 28px rgba(0,0,0,0.18);
}

.survey-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.survey-card p {
  padding: 12px;
  font-size: 0.9rem;
  color: #333;
}

/* SURVEY IMAGE SECTION */
#surveyImages {
  background: #f9fbfd;
  padding: 50px 20px;
}

#surveyImages h2 {
  font-size: 2rem;
  color: #2c3e50;
  margin-bottom: 10px;
}

.section-desc {
  max-width: 700px;
  margin: 0 auto 40px;
  font-size: 1rem;
  color: #555;
  line-height: 1.5;
}

.survey-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
  padding: 0 20px;
}

.survey-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.survey-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.survey-card:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow: 0 18px 40px rgba(0,0,0,0.15);
}

.img-container img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.5s ease;
  display: block;
}

.img-container:hover img {
  transform: scale(1.12); /* Zoom the image */
  filter: brightness(1.1); /* Slight brighten on hover */
}


.img-container {
  position: relative;
  overflow: hidden;
}

.img-container img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
  display: block;
}

.img-container:hover img {
  transform: scale(1.1);
}

/* Overlay for text on hover */
.overlay {
  position: absolute;
  bottom: 0;
  background: linear-gradient(to top, rgba(52, 152, 219, 0.8), transparent);
  color: #fff;
  width: 100%;
  padding: 12px;
  font-size: 0.9rem;
  opacity: 1;
  text-align: center;
}
.overlay {
  opacity: 0;
  transition: opacity 0.4s ease;
}

.img-container:hover .overlay {
  opacity: 1;
}


.meta {
  font-size: 0.85rem;
  color: #777;
  padding: 10px 12px 15px;
  text-align: center;
}

#aboutUs {
  padding: 50px 20px;
  background: #f0f4f8;
  text-align: center;
}

#aboutUs h2 {
  font-size: 2rem;
  color: #2c3e50;
  margin-bottom: 20px;
}

#aboutUs .section-desc {
  max-width: 700px;
  margin: 0 auto 40px;
  font-size: 1.05rem;
  color: #555;
  line-height: 1.6;
}

.about-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  justify-items: center;
}

.about-card {
  background: white;
  border-radius: 20px;
  padding: 30px 20px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.about-card:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.about-card img {
  width: 70px;
  height: 70px;
  margin-bottom: 15px;
}

.about-card h3 {
  color: #3498db;
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.about-card p {
  color: #555;
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Mobile responsiveness */
@media(max-width:600px) {
  .about-cards {
    grid-template-columns: 1fr;
  }
}


#feedback {
  padding: 50px 20px;
  background: #ffffff;
  text-align: center;
}

#feedback h2 {
  font-size: 2rem;
  color: #2c3e50;
  margin-bottom: 20px;
}

#feedback .section-desc {
  max-width: 700px;
  margin: 0 auto 40px;
  color: #555;
  line-height: 1.6;
}

.feedback-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  justify-items: center;
}

.feedback-card {
  background: #f0f4f8;
  border-radius: 20px;
  padding: 25px 20px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.feedback-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.feedback-text {
  font-size: 0.95rem;
  color: #333;
  margin-bottom: 15px;
  line-height: 1.5;
  font-style: italic;
}

.feedback-meta {
  font-size: 0.85rem;
  color: #777;
}

.feedback-meta .name {
  font-weight: bold;
  color: #3498db;
  margin-right: 10px;
}

.feedback-meta .location {
  opacity: 0.85;
}

/* Mobile */
@media(max-width:600px){
  .feedback-container {
    grid-template-columns: 1fr;
  }
}


/* MODAL STYLES */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.modal-content {
  background: #fff;
  width: 90%;
  max-width: 420px;
  padding: 25px;
  border-radius: 14px;
  text-align: center;
  position: relative;
  animation: scaleIn 0.3s ease;
}

.modal-content img {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 10px;
}

.modal-stats p {
  margin: 6px 0;
  font-weight: 500;
}

.close-btn {
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 22px;
  cursor: pointer;
}

@keyframes scaleIn {
  from {
    transform: scale(0.85);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}