:root {
  --primary: #6366f1;
  --accent: #22d3ee;
  --bg: #0f172a;
  --card: rgba(255, 255, 255, 0.08);
  --text: #e5e7eb;
}

body.light {
  --bg: #f8fafc;
  --text: #0f172a;
  --card: #ffffff;
}


* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  transition: 0.4s;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo img {
  width: 40px;
}

nav ul {
  display: flex;
  gap: 20px;
  list-style: none;
}

nav a, nav button {
  color: var(--text);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.hero {
  text-align: center;
  padding: 5rem 2rem;
}

.hero span {
  color: var(--accent);
}

.hero-buttons {
  margin-top: 2rem;
}

.btn {
  padding: 12px 25px;
  border-radius: 30px;
  text-decoration: none;
  margin: 0 10px;
}

.primary {
  background: var(--primary);
  color: white;
}

.outline {
  border: 2px solid var(--accent);
  color: var(--accent);
}

section {
  max-width: 1100px;
  margin: auto;
  padding: 4rem 2rem;
}

.section-title {
  text-align: center;
  margin-bottom: 2rem;
}

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

.skill-card,
.project-card {
  background: var(--card);
  padding: 20px;
  border-radius: 15px;
  backdrop-filter: blur(10px);
  transition: transform 0.3s;
}

.skill-card:hover,
.project-card:hover {
  transform: translateY(-5px);
}

.contact-box {
  text-align: center;
}

footer {
  text-align: center;
  padding: 1.5rem;
  opacity: 0.7;
}

.contact-card {
  max-width: 500px;
  margin: auto;
  padding: 2rem;
  background: var(--card);
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.contact-card p {
  margin: 1rem 0;
}

.contact-card a {
  color: var(--accent);
  text-decoration: none;
}