:root {
  --primary: #2563eb;
  --secondary: #0f172a;
  --accent: #7c3aed;
  --light: #f1f5f9;
  --dark: #0f172a;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --gray: #64748b;
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: var(--light);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header Styles */
header {
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(10px);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid rgba(100, 116, 139, 0.3);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.8rem;
  font-weight: 700;
  color: white;
}

.logo i {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  color: var(--light);
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1rem;
  position: relative;
  transition: var(--transition);
}

.nav-links a:after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: var(--transition);
}

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

.nav-links a:hover {
  color: var(--accent);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 10% 20%,
      rgba(37, 99, 235, 0.1) 0%,
      rgba(15, 23, 42, 0) 50%
    ),
    radial-gradient(
      circle at 90% 80%,
      rgba(124, 58, 237, 0.1) 0%,
      rgba(15, 23, 42, 0) 50%
    );
  z-index: -1;
}

.hero-content {
  display: flex;
  align-items: center;
  gap: 50px;
  width: 100%;
}

.profile-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(30, 41, 59, 0.6);
  border-radius: 20px;
  padding: 40px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(100, 116, 139, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
  max-width: 400px;
}

.profile-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(124, 58, 237, 0.3);
}

.profile-img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  overflow: hidden;
  border: 5px solid var(--accent);
  margin-bottom: 25px;
  position: relative;
}

.profile-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-info {
  text-align: center;
  margin-bottom: 25px;
}

.profile-info h1 {
  font-size: 2rem;
  margin-bottom: 10px;
  font-weight: 700;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.profile-info h2 {
  font-size: 1.2rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 5px;
}

.profile-info p {
  font-size: 1rem;
  color: var(--gray);
  margin-bottom: 15px;
}

.social-links {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: rgba(100, 116, 139, 0.2);
  color: white;
  font-size: 1.2rem;
  transition: var(--transition);
  text-decoration: none;
}

.social-links a:hover {
  background: var(--accent);
  transform: translateY(-5px);
}

.hero-text {
  flex: 2;
  max-width: 700px;
}

.hero-text h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  line-height: 1.2;
  font-family: "Roboto Slab", serif;
}

.hero-text h1 span {
  background: linear-gradient(90deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-text p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: #cbd5e1;
}

.cta-button {
  display: inline-block;
  padding: 15px 40px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  color: white;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  box-shadow: 0 5px 15px rgba(124, 58, 237, 0.4);
}

.cta-button:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(124, 58, 237, 0.6);
}

/* Section Styling */
section {
  padding: 100px 0;
  position: relative;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  font-family: "Roboto Slab", serif;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.section-title p {
  max-width: 700px;
  margin: 0 auto;
  color: #94a3b8;
  font-size: 1.1rem;
}

/* Tabs */
.tabs {
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 10px;
}

.tab-btn {
  padding: 12px 30px;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(100, 116, 139, 0.3);
  color: white;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  font-size: 1rem;
}

.tab-btn.active,
.tab-btn:hover {
  background: linear-gradient(90deg, var(--accent), var(--primary));
  border-color: transparent;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Table Styling */
.table-container {
  background: rgba(30, 41, 59, 0.6);
  border-radius: 15px;
  overflow: hidden;
  border: 1px solid rgba(100, 116, 139, 0.3);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  overflow-x: auto;
}

.table-header {
  padding: 20px;
  border-bottom: 1px solid rgba(100, 116, 139, 0.3);
}

.table-header h3 {
  font-size: 1.5rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 10px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  background: rgba(37, 99, 235, 0.2);
  text-align: left;
  padding: 18px 20px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

td {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(100, 116, 139, 0.2);
  color: #e2e8f0;
  font-weight: 400;
}

tr:hover td {
  background: rgba(37, 99, 235, 0.1);
}

.branch-core {
  color: var(--success);
  font-weight: 500;
}

.branch-cse {
  color: var(--warning);
  font-weight: 500;
}

.branch-inter {
  color: #60a5fa;
  font-weight: 500;
}

.marks-high {
  color: var(--danger);
  font-weight: 600;
}

.marks-medium {
  color: var(--warning);
  font-weight: 600;
}

.marks-low {
  color: var(--success);
  font-weight: 600;
}

/* Visualization */
.visualization-section {
  background: rgba(15, 23, 42, 0.8);
  padding: 80px 0;
  border-radius: 30px;
  margin: 50px 0;
}

.chart-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.chart-card {
  background: rgba(30, 41, 59, 0.6);
  border-radius: 15px;
  padding: 30px;
  border: 1px solid rgba(100, 116, 139, 0.3);
  backdrop-filter: blur(10px);
}

.chart-card h3 {
  font-size: 1.4rem;
  margin-bottom: 20px;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 10px;
}

.chart-wrapper {
  height: 300px;
  position: relative;
}

/* Exam Cards */
.exam-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.exam-card {
  background: rgba(30, 41, 59, 0.6);
  border-radius: 15px;
  padding: 30px;
  border: 1px solid rgba(100, 116, 139, 0.3);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.exam-card:hover {
  transform: translateY(-10px);
  border-color: var(--accent);
  box-shadow: 0 15px 30px rgba(124, 58, 237, 0.2);
}

.exam-card h3 {
  font-size: 1.4rem;
  margin-bottom: 15px;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 10px;
}

.exam-card p {
  color: #94a3b8;
  margin-bottom: 15px;
}

.exam-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(100, 116, 139, 0.3);
  color: #cbd5e1;
  font-size: 0.9rem;
}

/* Footer */
footer {
  background: rgba(15, 23, 42, 0.9);
  padding: 60px 0 30px;
  border-top: 1px solid rgba(100, 116, 139, 0.3);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-column h3 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  color: var(--accent);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-links a:hover {
  color: var(--accent);
}

.copyright {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(100, 116, 139, 0.3);
  color: #64748b;
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
  }

  .profile-card {
    max-width: 100%;
  }

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

  .hero-text h1 {
    font-size: 2.8rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    flex-direction: column;
    padding: 20px;
    gap: 15px;
    border-bottom: 1px solid rgba(100, 116, 139, 0.3);
  }

  .nav-links.active {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .hero-text h1 {
    font-size: 2.3rem;
  }

  .section-title h2 {
    font-size: 2rem;
  }

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

  .exam-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .hero-text h1 {
    font-size: 2rem;
  }

  .section-title h2 {
    font-size: 1.8rem;
  }

  .tab-btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
}
.search-box {
  position: relative;
  max-width: 300px;
}

.search-box input {
  width: 100%;
  padding: 10px 15px 10px 40px;
  border-radius: 50px;
  border: 1px solid rgba(100, 116, 139, 0.3);
  background: rgba(30, 41, 59, 0.8);
  color: white;
  font-size: 0.9rem;
}

.search-box i {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
}