:root {
  --bg-color: #1e1e2f;
  --card-bg: #2c2c44;
  --text-color: #fff;
  --accent: #00c896;
  --input-bg: #35355a;
}

.light-mode {
  --bg-color: #f4f4f4;
  --card-bg: #fff;
  --text-color: #222;
  --accent: #0077cc;
  --input-bg: #e8e8e8;
}

body {
  font-family: "Poppins", sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 30px;
  transition: background 0.3s, color 0.3s;
}

#themeToggle {
  position: fixed;
  top: 20px;
  right: 25px;
  background: var(--card-bg);
  color: var(--text-color);
  border: none;
  border-radius: 50%;
  width: 45px;
  height: 45px;
  font-size: 22px;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  transition: all 0.3s ease;
}

#themeToggle:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.container {
  max-width: 900px;
  margin: 70px auto 0;
  text-align: center;
}

.input-section {
  display: flex;
  justify-content: center;
  margin-bottom: 30px;
  gap: 10px;
}

input {
  padding: 10px;
  width: 60%;
  border-radius: 8px 0 0 8px;
  border: none;
  outline: none;
  font-size: 16px;
  background: var(--input-bg);
  color: var(--text-color);
}

button {
  padding: 10px 20px;
  border-radius: 0 8px 8px 0;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: bold;
  transition: all 0.3s ease;
}

button:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}

.profile-card {
  background: linear-gradient(135deg, var(--card-bg), var(--accent));
  border-radius: 15px;
  padding: 25px;
  text-align: center;
  margin: 20px auto;
  max-width: 800px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.3);
  transition: transform 0.3s;
}

.profile-card:hover {
  transform: translateY(-5px);
}

.profile-card img {
  width: 120px;
  border-radius: 50%;
  border: 3px solid var(--accent);
}

.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 15px;
  margin-top: 20px;
}

.project-card {
  background: var(--input-bg);
  padding: 15px;
  border-radius: 10px;
  transition: transform 0.3s;
}

.project-card:hover {
  transform: scale(1.05);
}

.project-card a {
  text-decoration: none;
  color: var(--accent);
  font-weight: bold;
}