/* Header */
header {
  background-color: #222;
  color: #f1f1f1;
  width: 100%;
  padding: 20px;
  text-align: center;
  border-radius: 10px;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
  margin-bottom: 30px;
  position: relative;
}

header h1 {
  font-size: 36px;
  margin-bottom: 10px;
}

.tagline {
  font-size: 1.2rem;
  color: #ff9f00;
  margin-bottom: 20px;
}

header nav {
  display: flex;
  justify-content: center;
  gap: 8px 20px;
  margin-top: 20px;
  flex-wrap: wrap;
}

header a {
  color: #f1f1f1;
  text-decoration: none;
  font-size: 18px;
  font-weight: bold;
}

header a:hover {
  color: #ff9f00;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  background-color: #222;
  color: #ff9f00;
  width: 100%;
  margin-top: 50px;
}

footer a {
  color: #ff9f00;
  margin: 0 10px;
  text-decoration: none;
}

footer a:hover {
  color: #28a745;
  opacity: 0.7;
}

/* Social Links */
.social-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}

.social-links a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  background: rgba(255, 255, 255, 0.1);
  color: #ff9f00;
  text-decoration: none;
  transition: all 0.3s ease;
}

.social-links a i {
  font-size: 1.25rem;
}

.social-links a:hover {
  transform: translateY(-3px);
  background: #ff9f00;
  color: white;
}

/* Dark Mode Toggle Button */
.dark-mode-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  background-color: #444;
  color: #fff;
  border: none;
  padding: 15px 30px;
  border-radius: 50px;
  font-size: 20px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.3s;
  z-index: 1000;
}

.dark-mode-toggle:hover {
  background-color: #ff9f00;
  transform: scale(1.1);
}

.toggle-icon {
  font-size: 24px;
}

/* Floating Social */
.floating-social {
  position: fixed;
  top: 25%;
  left: 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 9999;
}

.floating-social .icon {
  width: 42px;
  height: 42px;
  background: #222;
  color: #fff;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 18px;
  text-decoration: none;
  transition: transform 0.25s ease, background 0.25s ease;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.floating-social .linkedin {
  background: #0A66C2;
}

.floating-social .github {
  background: #333;
}

.floating-social .email {
  background: #D44638;
}

.floating-social .kaggle {
  background: #20BEFF;
}

.floating-social .leetcode {
  background: #1A1A1A;
}

.floating-social .huggingface {
  background: #1A1A1A;
}

.floating-social .sidebar-brand-icon {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: 0;
}

.floating-social .icon:hover {
  transform: translateX(4px);
  background: #ff9f00;
  color: #fff;
}

/* Glow Name */
.glow-name {
  font-size: 2.5rem;
  font-weight: 700;
  color: #ffffff;
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.4);
}

/* Dark Mode - Header/Footer */
body.dark-mode header {
  background-color: #333;
}

/* Light Mode - Header/Footer/Social */
body.light-mode header {
  background-color: #fff;
  color: #333;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

body.light-mode header nav a {
  color: #333;
  font-weight: 600;
  position: relative;
  padding-bottom: 5px;
  transition: color 0.3s ease;
}

body.light-mode header nav a:hover {
  color: #ff9f00;
}

body.light-mode header nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: #ff9f00;
  transition: width 0.3s ease;
}

body.light-mode header nav a:hover::after {
  width: 100%;
}

body.light-mode footer {
  background-color: #f4f4f4;
  color: #555;
}

body.light-mode .social-links a {
  background: rgba(0, 0, 0, 0.05);
}

body.light-mode .social-links a:hover {
  background: #ff9f00;
  color: #fff;
}

body.light-mode .floating-social .icon {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

body.light-mode .glow-name {
  color: #ff9f00;
  text-shadow: 0 0 10px rgba(255, 159, 0, 0.4);
}

/* Active Nav */
nav a.active {
  position: relative;
  border-bottom: 2px solid #ff9f00;
  padding-bottom: 3px;
}

body.light-mode nav a.active::after {
  width: 100%;
}

/* Hamburger Menu */
.hamburger {
  display: none;
  background: none;
  border: none;
  color: #f1f1f1;
  font-size: 24px;
  cursor: pointer;
  padding: 5px 10px;
  z-index: 1001;
}

body.light-mode .hamburger {
  color: #333;
}

/* Responsive */
@media (max-width: 768px) {
  header {
    padding: 15px;
  }

  .hamburger {
    display: block;
    position: absolute;
    top: 15px;
    right: 60px;
  }

  header nav {
    display: none;
    flex-direction: column;
    gap: 0;
    font-size: 0;
    margin-top: 10px;
  }

  header nav.nav-open {
    display: flex;
  }

  header nav a {
    font-size: 16px;
    padding: 10px 0;
    display: block;
  }
}

@media (max-width: 480px) {
  .social-links {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 600px) {
  .floating-social {
    top: auto;
    bottom: 20px;
    flex-direction: row;
    left: 50%;
    transform: translateX(-50%);
  }
}