* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}

body {
  background: #0e1420;
  color: #fff;
}

/* Layout */
.container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: #101732;
  padding: 40px 20px;
  text-align: center;
  position: fixed;
  height: 100vh;
}

.sidebar img {
  width: 180px;
  max-width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 50%;
  padding: 5px;
  background: rgba(23,154,236,0.15);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(0,2,7,0.3);
  transition: all 0.4s ease;
}

.sidebar h2 {
  margin-top: 15px;
}

.sidebar p {
  color: #4379c5;
  margin-bottom: 20px;
}

.sidebar nav a {
  display: block;
  margin: 10px 0;
  text-decoration: none;
  color: #fff;
}
.btn {
  display: inline-block;
  margin: 15px 0;
  padding: 10px 22px;
  background: linear-gradient(135deg, #38bdf8, #0ea5e9);
  color: #020617;
  border-radius: 20px;
  text-decoration: none;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(56, 189, 248, 0.3);
}

.btn:hover {
  transform: translateY(-6px) scale(1.05);
  background: linear-gradient(135deg, #0ea5e9, #38bdf8);
  box-shadow: 0 10px 25px rgba(56, 189, 248, 0.6);
  color: #ffffff;
  letter-spacing: 0.5px;
}

/* Hamburger */
.hamburger {
  display: none;
  font-size: 26px;
  cursor: pointer;
  color: #38bdf8;
  margin-top: 15px;
}

/* Content */
.content {
  margin-left: 280px;
  padding: 40px;
  width: 100%;
}

.card {
  background: #020617;
  padding: 25px;
  border-radius: 15px;
  margin-bottom: 25px;
}

.card h3 {
  color: #38bdf8;
  margin-bottom: 15px;
}

/* Skills hover */
.tags span {
  display: inline-block;
  background: linear-gradient(135deg,#38bdf8,#0ea5e9);
  color: #020617;
  padding: 8px 16px;
  margin: 8px;
  border-radius: 20px;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}

.tags span:hover {
  transform: translateY(-6px) scale(1.08);
  box-shadow: 0 10px 25px rgba(56,189,248,0.6);
  color: #fff;
}

/* Projects & Achievements */
.project, .achievement {
  margin-bottom: 15px;
}

/* Contact */
form {
  display: flex;
  flex-direction: column;
}

form input, textarea {
  margin: 8px 0;
  padding: 10px;
  border-radius: 5px;
  border: none;
}

form button {
  background: #38bdf8;
  padding: 10px;
  border: none;
  font-weight: bold;
  cursor: pointer;
}

/* Footer */
footer {
  text-align: center;
  color: #94a3b8;
  margin-top: 30px;
}

/* Responsive */
@media (max-width: 900px) {

  /* Sidebar becomes top bar */
  .sidebar {
    position: relative;
    width: 100%;
    height: auto;
    padding: 25px 20px;
  }

  /* Content stays full width */
  .content {
    margin-left: 0;
    padding: 25px 20px;
  }

  /* Hamburger visible */
  .hamburger {
    display: block;
  }

  /* Hide nav by default */
  #navMenu {
    display: none;
    margin-top: 15px;
  }

  #navMenu a {
    display: block;
    padding: 10px 0;
  }

  /* Show nav when active */
  #navMenu.active {
    display: block;
  }

  /* Profile image resize */
  .sidebar img {
    width: 140px;
    margin: 0 auto 15px;
    display: block;
  }
}