@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap");
@import url("https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css");
@import url("https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css");

:root {
  --dark-charcoal: #0d1117;
  --card-bg: #1a1a1a;
  --card-gradient: linear-gradient(145deg, #1c1c1e, #1f1f21);
  --white: #ffffff;
  --royal-purple: #6c5ce7;
  --deep-navy: #001f3f;
  --text-secondary: #8b949e;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body.light {
  --dark-charcoal: #f9f9f9;
  --card-bg: #ffffff;
  --card-gradient: linear-gradient(145deg, #ffffff, #f0f0f0);
  --white: #1a1a1a;
  --royal-purple: #6c5ce7;
  --deep-navy: #3b3bff;
  --text-secondary: #555;
  background: var(--dark-charcoal);
  color: var(--white);
}

body {
  font-family: "Poppins", sans-serif;
  background: var(--dark-charcoal);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
}

html {
  scroll-behavior: smooth;
}

/* Theme Toggle Button */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  background: linear-gradient(45deg, var(--royal-purple), var(--deep-navy));
  border: none;
  border-radius: 50%;
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #fff;
  font-size: 1.2rem;
  z-index: 2000;
  box-shadow: 0 4px 15px rgba(108, 92, 231, 0.2);
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  transform: scale(1.1);
}
/* Background Particles Effect */
.particles-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: radial-gradient(
      circle at 20% 50%,
      rgba(108, 92, 231, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(circle at 80% 20%, rgba(0, 31, 63, 0.1) 0%, transparent 50%),
    radial-gradient(
      circle at 40% 80%,
      rgba(108, 92, 231, 0.05) 0%,
      transparent 50%
    );
}

/* Navbar Styles */
.navbar {
  background: transparent !important;
  backdrop-filter: blur(0px);
  padding: 1.5rem 0;
  transition: all 0.4s ease;
  opacity: 0;
  transform: translateY(-20px);
  animation: fadeInDown 1s ease-out 0.2s forwards;
}

.navbar.scrolled {
  background: rgba(13, 17, 23, 0.95) !important;
  backdrop-filter: blur(20px);
  box-shadow: 0 4px 30px rgba(108, 92, 231, 0.1);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--white) !important;
}

.navbar-nav {
  margin-left: auto;
}

.navbar-nav .nav-link {
  color: var(--white) !important;
  margin: 0 1.5rem;
  font-weight: 500;
  position: relative;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.navbar-nav .nav-link:hover {
  color: var(--royal-purple) !important;
}

.navbar-nav .nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background: linear-gradient(90deg, var(--royal-purple), var(--deep-navy));
  transition: width 0.3s ease;
}

.navbar-nav .nav-link:hover::after {
  width: 100%;
}

.navbar-toggler {
  border: 1px solid var(--royal-purple);
  padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(108, 92, 231, 0.25);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Main Container */
.main-container {
  padding: 8rem 0 4rem;
  min-height: 100vh;
}

/* About Section Heading */
.section-heading {
  text-align: center;
  margin-bottom: 5rem;
  opacity: 0;
  transform: translateY(50px);
  animation: fadeInUp 1s ease-out 0.5s forwards;
}

.section-heading h1 {
  font-size: 4rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 1rem;
  background: linear-gradient(45deg, var(--royal-purple), var(--deep-navy));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-heading .underline {
  width: 120px;
  height: 4px;
  background: linear-gradient(90deg, var(--royal-purple), var(--deep-navy));
  margin: 0 auto;
  border-radius: 2px;
  animation: glowPulse 2s ease-in-out infinite alternate;
}

/* Education Card */
.education-card {
  background: var(--card-gradient);
  border-radius: 16px;
  padding: 2.5rem;
  margin-bottom: 4rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(108, 92, 231, 0.1);
  transition: all 0.3s ease-in-out;
  opacity: 0;
  transform: translateY(50px);
  animation: fadeInUp 1s ease-out 0.8s forwards;
  position: relative;
  overflow: hidden;
}

.education-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    145deg,
    rgba(108, 92, 231, 0.05),
    rgba(0, 31, 63, 0.05)
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 16px;
}

.education-card:hover::before {
  opacity: 1;
}

.education-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 50px rgba(108, 92, 231, 0.2), 0 0 30px rgba(0, 31, 63, 0.1);
  border-color: var(--royal-purple);
}

.education-header {
  display: flex;
  align-items: center;
  margin-bottom: 2rem;
}

.education-icon {
  font-size: 3.5rem;
  color: var(--royal-purple);
  margin-right: 2rem;
  filter: drop-shadow(0 0 10px rgba(108, 92, 231, 0.3));
}

.education-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.education-subtitle {
  font-size: 1.2rem;
  color: var(--royal-purple);
  font-weight: 500;
}

.education-details {
  list-style: none;
  padding: 0;
}

.education-details li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 1.2rem;
  color: var(--white);
  font-size: 1.1rem;
  line-height: 1.7;
  opacity: 0;
  transform: translateX(-30px);
  animation: slideInLeft 0.8s ease-out forwards;
}

.education-details li:nth-child(1) {
  animation-delay: 1.2s;
}
.education-details li:nth-child(2) {
  animation-delay: 1.4s;
}
.education-details li:nth-child(3) {
  animation-delay: 1.6s;
}
.education-details li:nth-child(4) {
  animation-delay: 1.8s;
}
.education-details li:nth-child(5) {
  animation-delay: 2s;
}

.education-details li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--royal-purple);
  font-size: 1.5rem;
  font-weight: bold;
}

/* Skills Section */
.skills-section {
  margin-bottom: 4rem;
  opacity: 0;
  transform: translateY(50px);
  animation: fadeInUp 1s ease-out 1.2s forwards;
}

.skills-heading {
  text-align: center;
  margin-bottom: 3rem;
}

.skills-heading h2 {
  font-size: 3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1rem;
  position: relative;
}

.skills-heading .underline {
  width: 100px;
  height: 3px;
  background: linear-gradient(90deg, var(--royal-purple), var(--deep-navy));
  margin: 0 auto;
  border-radius: 2px;
  animation: glowPulse 2s ease-in-out infinite alternate;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.skill-badge {
  background: var(--card-gradient);
  color: var(--white);
  padding: 1.2rem 2rem;
  border-radius: 50px;
  font-weight: 500;
  font-size: 1rem;
  text-align: center;
  border: 1px solid rgba(108, 92, 231, 0.2);
  transition: all 0.3s ease;
  cursor: pointer;
  opacity: 0;
  transform: scale(0.8);
  animation: scaleIn 0.6s ease-out forwards;
  position: relative;
  overflow: hidden;
}

.skill-badge::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(108, 92, 231, 0.2),
    transparent
  );
  transition: left 0.5s ease;
}

.skill-badge:hover::before {
  left: 100%;
}

.skill-badge:nth-child(1) {
  animation-delay: 1.5s;
}
.skill-badge:nth-child(2) {
  animation-delay: 1.6s;
}
.skill-badge:nth-child(3) {
  animation-delay: 1.7s;
}
.skill-badge:nth-child(4) {
  animation-delay: 1.8s;
}
.skill-badge:nth-child(5) {
  animation-delay: 1.9s;
}
.skill-badge:nth-child(6) {
  animation-delay: 2s;
}
.skill-badge:nth-child(7) {
  animation-delay: 2.1s;
}
.skill-badge:nth-child(8) {
  animation-delay: 2.2s;
}
.skill-badge:nth-child(9) {
  animation-delay: 2.3s;
}
.skill-badge:nth-child(10) {
  animation-delay: 2.4s;
}
.skill-badge:nth-child(11) {
  animation-delay: 2.5s;
}
.skill-badge:nth-child(12) {
  animation-delay: 2.6s;
}

.skill-badge:hover {
  transform: translateY(-8px) scale(1.05);
  background: linear-gradient(135deg, var(--royal-purple), var(--deep-navy));
  box-shadow: 0 15px 35px rgba(108, 92, 231, 0.4);
  border-color: var(--royal-purple);
}

/* Animations */
@keyframes fadeInDown {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes glowPulse {
  0% {
    box-shadow: 0 0 5px rgba(108, 92, 231, 0.5);
  }
  100% {
    box-shadow: 0 0 20px rgba(108, 92, 231, 0.8);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .main-container {
    padding: 6rem 0 2rem;
  }

  .section-heading h1 {
    font-size: 2.5rem;
  }

  .education-card {
    padding: 2rem;
    margin-bottom: 3rem;
  }

  .education-header {
    flex-direction: column;
    text-align: center;
    margin-bottom: 1.5rem;
  }

  .education-icon {
    margin-right: 0;
    margin-bottom: 1rem;
  }

  .education-title {
    font-size: 1.5rem;
  }

  .education-subtitle {
    font-size: 1rem;
  }

  .education-details li {
    font-size: 1rem;
    padding-left: 1.5rem;
  }

  .skills-heading h2 {
    font-size: 2rem;
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
  }

  .skill-badge {
    padding: 1rem 1.5rem;
    font-size: 0.9rem;
  }

  .navbar-nav .nav-link {
    margin: 0.5rem 0;
    text-align: center;
  }
}

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

  .education-card {
    padding: 1.5rem;
  }

  .education-title {
    font-size: 1.3rem;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .skill-badge {
    padding: 0.8rem 1.2rem;
    font-size: 0.85rem;
  }
}

/* Medium screens (769px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
  .main-container {
    padding: 7rem 0 3rem;
  }

  .section-heading h1 {
    font-size: 3rem;
  }

  .education-card {
    padding: 2.5rem;
    margin-bottom: 3.5rem;
  }

  .education-header {
    flex-direction: row;
    text-align: left;
  }

  .education-icon {
    font-size: 3rem;
    margin-right: 1.5rem;
    margin-bottom: 0;
  }

  .education-title {
    font-size: 1.7rem;
  }

  .education-subtitle {
    font-size: 1.1rem;
  }

  .education-details li {
    font-size: 1.05rem;
    padding-left: 1.8rem;
  }

  .skills-heading h2 {
    font-size: 2.5rem;
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.2rem;
  }

  .skill-badge {
    padding: 1rem 1.8rem;
    font-size: 0.95rem;
  }
}

/* Large screens (1200px and above) */
@media (min-width: 1200px) {
  .main-container {
    padding: 8rem 0 4rem;
  }

  .section-heading h1 {
    font-size: 4.5rem;
  }

  .education-card {
    padding: 3rem;
    margin-bottom: 4.5rem;
  }

  .education-icon {
    font-size: 4rem;
    margin-right: 2rem;
  }

  .education-title {
    font-size: 2rem;
  }

  .education-subtitle {
    font-size: 1.3rem;
  }

  .education-details li {
    font-size: 1.2rem;
    padding-left: 2rem;
  }

  .skills-heading h2 {
    font-size: 3.2rem;
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
  }

  .skill-badge {
    padding: 1.2rem 2rem;
    font-size: 1rem;
  }
}