/* =========================================================
   GLOBAL RESET
========================================================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", "Segoe UI", sans-serif;
}

body {
  background: linear-gradient(180deg, #f6f8fb 0%, #eef1f6 100%);
  color: #222;
  line-height: 1.7;
  overflow-x: hidden;
  scroll-behavior: smooth;
}


/* =========================================================
   HEADER
========================================================= */
header {
  background: #002855;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  padding: 0.6rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Left Section (Title) */
.header-left h1 {
  font-size: 1.6rem;
  font-weight: 600;
  color: #0052cc;
  white-space: nowrap;
}

/* Center Section (Logo) */
.logo-center {
  flex: 1;
  text-align: center;
}

.logo-center img {
  height: 80px;
  width: auto;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.logo-center img:hover {
  transform: scale(1.05);
}

/* Right Section (Nav + Auth) */
.header-right {
  display: flex;
  align-items: center;
  gap: 50px;
}

nav {
  display: flex;
  gap: 2rem;
}

nav a {
  text-decoration: none;
  color: white;
  font-weight: 500;
  position: relative;
  transition: all 0.3s ease;
}

nav a:hover {
  color: #007bff;
}

nav a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0%;
  height: 2px;
  background: #007bff;
  transition: width 0.3s ease;
}

nav a:hover::after {
  width: 100%;
}

/* Responsive Fix */
@media (max-width: 1000px) {
  header {
    flex-direction: column;
    text-align: center;
  }

  .header-right {
    flex-direction: column;
    gap: 10px;
  }

  nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .logo-center img {
    height: 70px;
  }
}


/* =========================================================
   MAIN STRUCTURE
========================================================= */
main {
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: fadeIn 0.5s ease;
}

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

section {
  max-width: 100%;
  text-align: center;
  padding: 4rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  scroll-margin-top: 150px;
}

section:last-of-type {
  border-bottom: none;
}

h1, h2 {
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: 0.3px;
}

h1 {
  font-size: 2.4rem;
  color: #0a2a66;
}

h2 {
  font-size: 1.8rem;
  color: #0052cc;
  margin-bottom: 1.2rem;
}

p {
  margin: 0 auto 1.2rem;
  max-width: 700px;
  color: #333;
  font-size: 1.05rem;
}

ul {
  list-style: none;
  margin-top: 1rem;
  padding-left: 0;
}

ul li {
  margin-bottom: 0.5rem;
  color: #444;
}

.tagline {
  font-size: 1.2rem;
  font-weight: 500;
  color: #007bff;
  margin-top: 1rem;
}


/* =========================================================
   BUTTONS
========================================================= */
button, .btn {
  background: linear-gradient(135deg, #007bff, #00bcd4);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  cursor: pointer;
  font-weight: 500;
  transition: 0.3s ease;
}

button:hover, .btn:hover {
  background: linear-gradient(135deg, #0066e6, #009ab8);
}


/* =========================================================
   HERO SECTION
========================================================= */
.home-hero {
  position: relative;
  width: 100%;
  height: 85vh;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #fff;
}

/* Background Image */
.slides img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  filter: brightness(75%);
}

/* Hero Text */
.hero-content {
  position: relative;
  z-index: 2;
  background: rgba(0, 0, 0, 0.45);
  padding: 2rem 3rem;
  border-radius: 18px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  max-width: 800px;
}

.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 700;
  color: #e3f2fd;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.4);
}

.hero-content .tagline {
  font-size: 1.3rem;
  font-weight: 500;
  color: #f1f7ff;
  margin-top: 0.8rem;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Responsive Hero */
@media (max-width: 768px) {
  .hero-content {
    padding: 1.2rem 1.5rem;
  }

  .hero-content h1 {
    font-size: 1.8rem;
  }

  .hero-content .tagline {
    font-size: 1rem;
  }
}


/* =========================================================
   ABOUT + NOTICES SECTION
========================================================= */
#about-section {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  padding: 60px 80px;
  background: #f4f6fa;
  color: #1f2937;
}

/* About Section */
.about-content {
  flex: 0 0 70%;
  text-align: left;
}

.about-content h2 {
  font-size: 2rem;
  color: #2563eb;
  margin-bottom: 15px;
}

.about-content p {
  line-height: 1.7;
  font-size: 0.8rem;
  color: #444;
  margin-bottom: 15px;
}

/* Notices Box */
.notices-box {
  flex: 0 0 30%;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  padding: 20px;
  overflow: hidden;
  position: relative;
}

.notices-box h3 {
  color: #007bff;
  text-align: center;
  margin-bottom: 10px;
}

.notices-wrapper {
  height: 350px;
  overflow: hidden;
  position: relative;
}

.notices-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.notices-list li {
  padding: 10px 0;
  border-bottom: 1px solid #e5e7eb;
  font-size: 0.95rem;
  color: #333;
}

.notices-list::after {
  content: attr(data-duplicate);
}

@keyframes scrollLoop {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}

.notices-list {
  animation: scrollLoop 20s linear infinite;
}

.notices-wrapper:hover .notices-list {
  animation-play-state: paused;
}


/* =========================================================
   COURSES SECTION
========================================================= */
#courses {
  background: #f5f8ff;
  padding: 80px 60px;
  text-align: center;
  color: #1f2937;
}

#courses h2 {
  font-size: 2rem;
  color: #2563eb;
  margin-bottom: 40px;
  text-align: center;
  font-weight: 700;
}

.courses-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  justify-content: center;
  align-items: stretch;
}

.course-card {
  background: white;
  border-radius: 14px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  padding: 25px 20px;
  text-align: left;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.course-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.15);
}

.course-card h3 {
  color: #1e40af;
  margin-bottom: 10px;
  font-size: 1.3rem;
}

.course-card p {
  color: #374151;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

.read-more-btn {
  align-self: flex-start;
  background: linear-gradient(135deg, #007bff, #00bcd4);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.read-more-btn:hover {
  background: linear-gradient(135deg, #0066e6, #009ab8);
  transform: translateY(-2px);
}

.course-card:nth-child(1) { background: #e3f2fd; }
.course-card:nth-child(2) { background: #e0f7fa; }
.course-card:nth-child(3) { background: #ede7f6; }
.course-card:nth-child(4) { background: #f1f8e9; }

.course-card h3, .course-card p {
  color: #0a2540;
}



/* =========================================================
   LABS SECTION
========================================================= */
.labs-section {
  background: #f4f6fa;
  padding: 80px 20px;
  text-align: center;
}

.labs-section h2 {
  font-size: 2rem;
  color: #2563eb;
  margin-bottom: 10px;
}

.labs-section p {
  color: #555;
  font-size: 1rem;
  max-width: 800px;
  margin: 0 auto 30px;
  line-height: 1.6;
}

.labs-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 100px;
}

/* ---------- Lab Card ---------- */
.lab-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  transition: all 0.3s ease;
}

.lab-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease, filter 0.3s ease;
}

.lab-card::before {
  /* blackish overlay for better text visibility */
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6), rgba(0,0,0,0.1));
  transition: background 0.3s ease;
}

.lab-card span {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 6px;
  text-align: center;
  width: max-content;
  max-width: 90%;
}

/* Hover effect */
.lab-card:hover img {
  transform: scale(1.05);
  filter: brightness(1.1);
}

.lab-card:hover::before {
  background: linear-gradient(to top, rgba(37,99,235,0.7), rgba(0,0,0,0.2));
}



/* =========================================================
   EVENTS SECTION
========================================================= */
.events-section {
  background: #eaf1ff;
  padding: 80px 20px;
  text-align: center;
}

.events-section h2 {
  font-size: 2rem;
  color: #1d4ed8;
  margin-bottom: 10px;
}

.events-section p {
  color: #444;
  font-size: 1rem;
  max-width: 800px;
  margin-bottom: 30px;
}

.event-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.event-card {
  background: white;
  flex: 1;
  min-width: 250px;
  max-width: 320px;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 3px 8px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.event-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

.event-card h3 {
  color: #2563eb;
  font-size: 1.2rem;
  margin-bottom: 6px;
}

.event-card p {
  color: #555;
  font-size: 0.95rem;
}



/* =========================================================
   REVIEWS SECTION
========================================================= */
.reviews-section {
  background: linear-gradient(135deg, #f8fbff, #eef4ff);
  padding: 60px 5%;
  text-align: center;
  overflow: hidden;
}

.reviews-section h2 {
  color: #2563eb;
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

.reviews-slider {
  width: 100%;
  overflow: hidden;
  position: relative;
}

.reviews-track {
  display: flex;
  width: calc(280px * 9);
  animation: scrollReviews 30s linear infinite;
}

.review-card {
  flex: 0 0 23%;
  min-width: 280px;
  aspect-ratio: 6 / 3;
  background: #ffffff;
  margin: 0 10px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  padding: 1rem;
  text-align: left;
  color: #1f2937;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}

.stars {
  color: #facc15;
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.review-card p {
  font-size: 0.85rem;
  color: #333;
  line-height: 1.4;
  flex: 1;
}

.review-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 0.8rem;
}

.review-footer img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #007bff;
}

.review-footer h4 {
  margin: 0;
  color: #007bff;
  font-weight: 600;
  font-size: 0.85rem;
}

@keyframes scrollReviews {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@media (max-width: 768px) {
  .review-card {
    min-width: 240px;
    flex: 0 0 60%;
  }
  .reviews-track {
    animation-duration: 25s;
  }
}

@keyframes scrollReviews {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}




/* =========================================================
   CHATBOT SECTION
========================================================= */
.chat-btn {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: linear-gradient(135deg, #007bff, #00bcd4);
  border: none;
  color: white;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  font-size: 24px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.2);
  cursor: pointer;
  z-index: 200;
  transition: all 0.3s ease;
}

.chat-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

/* ---------- Chat Container ---------- */
.chat-container {
  position: fixed;
  bottom: 90px;
  right: 25px;
  width: 360px;
  max-height: 480px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(15px);
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
  overflow: hidden;
  display: none;
  flex-direction: column;
  z-index: 201;
  animation: popUp 0.3s ease;
}

@keyframes popUp {
  from { opacity: 0; transform: translateY(10px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.chat-header {
  background: linear-gradient(135deg, #007bff, #00bcd4);
  color: white;
  text-align: center;
  padding: 12px;
  font-weight: 600;
}

.chat-body {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
  background: rgba(255,255,255,0.6);
  display: flex;
  flex-direction: column;
}

.chat-message {
  background: #eef3f8;
  padding: 10px 14px;
  border-radius: 8px;
  margin: 6px 0;
  max-width: 80%;
  align-self: flex-start;
  word-wrap: break-word;
  animation: fadeIn 0.3s ease;
}

.chat-message.user {
  background: #dff0ff;
  align-self: flex-end;
}

.chat-footer {
  padding: 10px;
  display: flex;
  background: rgba(255,255,255,0.8);
  border-top: 1px solid #ddd;
}

.chat-footer input {
  flex: 1;
  border: none;
  padding: 10px;
  border-radius: 6px;
  outline: none;
  background: #f5f5f5;
}

.chat-footer button {
  background: #007bff;
  color: white;
  border: none;
  border-radius: 6px;
  padding: 10px 12px;
  margin-left: 10px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.chat-footer button:hover {
  background: #006ae6;
}

.chat-body h3 {
  text-align: center;
  margin-bottom: 10px;
  color: #007bff;
}



/* =========================================================
   FOOTER
========================================================= */
footer {
  position: relative;
  width: 100%;
  background: #002855; /* pleasant blue */
  color: #002855;
  padding: 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-sizing: border-box;
  margin: 0;
  z-index: 99;
}

/* ---------- Layout ---------- */
.footer-content {
  display: grid;
  grid-template-columns: 1fr 0.8fr 1fr; /* balance columns */
  align-items: flex-start;
  text-align: center;
  gap: 2rem;
  flex-wrap: wrap;
}

/* ---------- LEFT SECTION ---------- */
.footer-left {
  text-align: left;
}

.footer-left h3 {
  color: #00bcd4;
  margin-bottom: 0.5rem;
}

.footer-left p {
  font-size: 0.9rem;
  color: #dbe4f3;
  line-height: 1.5;
}

.footer-left a {
  color: #e0f7fa;
  text-decoration: none;
}

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

/* ---------- CENTER SECTION ---------- */
.footer-center {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.footer-center h3 {
  color: #ffffff;
  margin-bottom: 0.2rem;
}

.footer-center p {
  font-size: 0.9rem;
  color: #dbe4f3;
  margin: 2px 0;
}

.footer-center .college-logo {
  width: 90px;
  height: auto;
  margin-bottom: 0.6rem;
  border: none;
  background: none;
  padding: 0;

  /* removes black bg + blends nicely with footer */
  mix-blend-mode: lighten;
  filter: brightness(1.4) contrast(1.2) saturate(1.1)
    drop-shadow(0 0 6px rgba(255, 255, 255, 0.2));
  transition: all 0.3s ease;
}

/* ---------- RIGHT SECTION (Feedback Form) ---------- */
.footer-right {
  text-align: left;
  width: 250px;
  margin: 0 50%;
}

.footer-right h3 {
  color: #00bcd4;
  margin-bottom: 0.5rem;
}

.footer-right form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-right input,
.footer-right textarea {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 6px;
  padding: 6px 10px;
  color: #fff;
  font-size: 0.85rem;
  resize: none;
  outline: none;
}

.footer-right textarea {
  height: 60px;
}

.footer-right input::placeholder,
.footer-right textarea::placeholder {
  color: #b0bec5;
}

.footer-right button {
  background: linear-gradient(135deg, #007bff, #00bcd4);
  border: none;
  border-radius: 6px;
  padding: 6px 12px;
  color: white;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.3s ease;
}

.footer-right button:hover {
  background: linear-gradient(135deg, #0066e6, #009ab8);
}

/* ---------- BOTTOM COPYRIGHT ---------- */
.footer-bottom {
  text-align: center;
  font-size: 0.75rem;
  color: #c0d3ea;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 1rem;
  padding-top: 0.5rem;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-right {
    max-width: 100%;
  }
}



/* =========================================================
   FACULTY SECTION
========================================================= */
.faculty-page {
  width: 100%;
  background: #f4f6fa;
  padding: 80px 3%;
  text-align: center;
  color: #1f2937;
  box-sizing: border-box;
}

/* Headings */
.faculty-page h2 {
  font-size: 2rem;
  margin-bottom: 10px;
  color: #2563eb;
}

.faculty-intro {
  color: #555;
  font-size: 1.1rem;
  max-width: 900px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

/* ---------- Faculty Grid ---------- */
.faculty-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 28px;
  justify-items: stretch;
  align-items: stretch;
  width: 100%;
  padding: 0 2%;
  margin: 0 auto;
}

/* ---------- Faculty Card ---------- */
/* Read More Button */
.read-more-container {
  display: flex;
  justify-content: center;
}
.read-more-btn {
  margin-top:20px;
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background: #2563eb;
  color: #fff;
  border-radius: 70px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.3s ease;
}

.read-more-btn:hover {
  background: #1e40af;
}

/* FACULTY CARD FLIP EFFECT */

.faculty-card {
  background: transparent;
  width: 250px;
  height: 320px;
  perspective: 1000px; /* Creates 3D depth */
  margin: 15px;
}

.faculty-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

.faculty-card:hover .faculty-inner {
  transform: rotateY(180deg);
}

/* FRONT SIDE */
.faculty-front,
.faculty-back {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 15px;
  backface-visibility: hidden;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  overflow: hidden;
}

.faculty-front {
  background: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 15px;
  text-align: center;
  border: 2px solid #e5e7eb;
  transition: transform 0.3s ease;
}

.faculty-front img {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 3px solid #2563eb;
  margin-bottom: 10px;
}

.faculty-front h3 {
  color: #1f2937;
  font-size: 1.1rem;
  margin: 5px 0;
}

.faculty-front p {
  color: #2563eb;
  font-weight: 600;
  font-size: 0.9rem;
}

/* BACK SIDE */
.faculty-back {
  background: #fff;
  color: white;
  transform: rotateY(180deg);
  padding: 20px;
  text-align: left;
  font-size: 0.85rem;
  line-height: 1.4;
  overflow-y: auto;
}

.faculty-back h3 {
  text-align: center;
  margin-bottom: 8px;
  font-size: 1.1rem;
  color: #2563eb;
}

.faculty-back ul {
  margin: 5px 0 0 18px;
}

.faculty-back li {
  margin-bottom: 3px;
  list-style: disc;
}

/* ---------- Search Bar ---------- */
#facultySearch {
  padding: 10px 18px;
  width: 60%;
  max-width: 500px;
  border: 2px solid #2563eb;
  border-radius: 25px;
  font-size: 1rem;
  outline: none;
  transition: 0.3s ease;
  margin-bottom: 40px;
}

#facultySearch:focus {
  border-color: #1d4ed8;
  box-shadow: 0 0 8px rgba(37, 99, 235, 0.3);
}


/* Optional smooth entry */
.faculty-card:hover .faculty-front {
  transform: scale(1.03);
}



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

/* ---------- Large Tablets (≤ 1024px) ---------- */
@media (max-width: 1024px) {
  #about-section {
    flex-direction: column;
    padding: 50px 40px;
  }
  .about-content, .notices-box {
    flex: 1 1 100%;
    width: 100%;
  }
  .courses-container {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }
  .labs-list {
    grid-template-columns: repeat(3, 1fr);
  }
  .faculty-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- Tablets (≤ 768px) ---------- */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    padding: 0.8rem 1rem;
  }

  #about-section {
    flex-direction: column;
    gap: 1.5rem;
    padding: 40px 30px;
  }

  .about-content p {
    font-size: 0.9rem;
  }

  .notices-box {
    width: 100%;
    padding: 15px;
  }

  #courses {
    padding: 60px 30px;
  }

  .courses-container {
    grid-template-columns: 1fr;
  }

  .labs-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .event-cards {
    flex-direction: column;
    align-items: center;
  }

  .faculty-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .review-card {
    flex: 0 0 80%;
  }

  footer {
    padding: 1.5rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }

  .footer-right {
    margin: 0 auto;
    width: 100%;
  }

  .chat-container {
    width: 90%;
    right: 5%;
  }
}
/* 🌐 Mobile Optimization */
@media (max-width: 600px) {

  html, body {
    width: 100%;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
  }

  /* --- GENERAL --- */
  header {
    padding: 0.8rem 1rem;
  }

  h1, h2 {
    font-size: 1.5rem;
    text-align: center;
  }

  section {
    padding: 2.5rem 1rem;
  }

  footer {
    text-align: center;
    padding: 1rem;
  }

  /* --- CARDS --- */
  .course-card, .event-card, .lab-card {
    margin: 0 auto;
    width: 90%;
    border-radius: 12px;
  }

  /* --- CHATBOT FLOATING BUTTON --- */
  .chat-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #0066ff;
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 55px;
    height: 55px;
    font-size: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    cursor: pointer;
    z-index: 1000;
  }

  /* --- CHAT CONTAINER --- */
  .chat-container {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 92vw;
    max-width: 360px;
    height: 70vh;
    display: none;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.96);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
    overflow: hidden;
    z-index: 999;
  }

  .chat-header {
    background: #0066ff;
    color: white;
    padding: 12px;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
  }

  .chat-body {
    flex: 1;
    padding: 10px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .chat-message {
    font-size: 0.9rem;
    padding: 8px 10px;
    border-radius: 10px;
    max-width: 80%;
    word-wrap: break-word;
  }

  .chat-message.user {
    background: #e0e0ff;
    align-self: flex-end;
  }

  .chat-message.bot {
    background: #f3f3f3;
    align-self: flex-start;
  }

  .chat-input-area {
    display: flex;
    border-top: 1px solid #ddd;
  }

  .chat-input {
    flex: 1;
    padding: 10px;
    border: none;
    outline: none;
    font-size: 1rem;
  }

  .send-btn {
    background: #0066ff;
    color: white;
    border: none;
    padding: 10px 14px;
    cursor: pointer;
    font-weight: bold;
  }

  /* --- BACKGROUND --- */
  body {
    background: linear-gradient(180deg, #f9fbff 0%, #eef3ff 100%);
    font-family: "Poppins", sans-serif;
  }
}


/* ---------- Cards & Reviews & Faculty - Mobile Tweaks ---------- */
@media (max-width: 600px) {

  /* ----- REVIEWS ----- */
  .reviews-section {
    padding: 30px 12px;
  }

  .reviews-slider {
    width: 100%;
    overflow: hidden;
  }

  /* Make the reviews track wrap instead of requiring a huge width,
     and slow the animation slightly for readability on mobile. */
  .reviews-track {
    display: flex;
    gap: 12px;
    width: auto;                 /* allow natural width so it can wrap */
    flex-wrap: nowrap;          /* keep horizontal scroll, but allow user control */
    padding-bottom: 8px;
    animation: none;            /* disable auto-scroll by default on mobile for UX */
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  /* 🧩 Reviews Section */
.reviews-section {
  padding: 30px 12px;
  overflow: hidden; /* hides scrollbar, but keeps animation clean */
  position: relative;
}

/* 🧠 Reviews Track (the moving container) */
.reviews-track {
  display: flex;
  gap: 16px;
  width: max-content; /* important: allows full scroll width */
  animation: scrollReviews 30s linear infinite;
  padding-left: 16px;   /* ensures first card not cut on left */
  padding-right: 16px;  /* ensures last card not cut on right */
}

/* 💬 Individual Review Card */
.review-card {
  flex: 0 0 auto;
  width: 80%;
  max-width: 300px;
  min-width: 260px;
  margin-right: 12px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  padding: 14px;
  text-align: left;
}

/* ⭐ Star size */
.stars {
  font-size: 0.95rem;
}

/* 🌀 Smooth continuous scroll animation */
@keyframes scrollReviews {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); } /* -50% looks smoother with duplicates */
}


  /* Faculty Section Wrapper */
  .faculty-page {
    padding: 30px 5%;
  }

  /* Faculty Grid */
  .faculty-grid {
    display: grid;
    grid-template-columns: 1fr; /* single column on mobile */
    gap: 20px;
    justify-items: center;
  }

  /* Card Container */
  .faculty-card {
    width: 90%;
    height: 280px; /* smaller height for mobile */
    perspective: 1000px;
  }

  /* Inner Wrapper for Flip */
  .faculty-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s;
    transform-style: preserve-3d;
  }

  /* Keep the same flip behavior */
  .faculty-card:hover .faculty-inner {
    transform: rotateY(180deg);
  }

  /* Front + Back Shared */
  .faculty-front,
  .faculty-back {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    backface-visibility: hidden;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(0,0,0,0.1);
  }

  /* Front Side */
  .faculty-front {
    background: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px;
    text-align: center;
  }

  .faculty-front img {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    margin-bottom: 10px;
    object-fit: cover;
  }

  .faculty-front h3 {
    font-size: 1rem;
    margin-bottom: 4px;
  }

  .faculty-front p {
    font-size: 0.9rem;
    color: #555;
  }

  /* Back Side */
  .faculty-back {
    background: #f9f9ff;
    color: #333;
    transform: rotateY(180deg);
    padding: 16px;
    font-size: 0.9rem;
    line-height: 1.4;
    text-align: center;
  }

  /* ----- LABS / INFRASTRUCTURE / INFRA CARD ----- */
  /* If you have .lab-card / .infrastructure-card, make them stack nicely */
  .labs-list {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 0 6%;
  }

  .lab-card, .infrastructure-card {
    width: 100%;
    margin: 0 auto;
    height: auto;
    border-radius: 12px;
  }

  .lab-card img, .infrastructure-card img {
    height: 160px;
    object-fit: cover;
  }

  .lab-card span {
    font-size: 0.95rem;
    padding: 6px 12px;
  }

  /* ----- BUTTONS & READ MORE ----- */
  .read-more-btn {
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 0.95rem;
  }

  /* keep footer tidy */
  footer .footer-content {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}