/* === Dark Theme Styles for Varun's Portfolio === */
:root {
  --primary-color: #00bfa6;
  --bg-color: #121212;
  --card-bg: #1f1f1f;
  --text-color: #f1f1f1;
  --link-color: #00bfa6;
  --accent: #323232;
  --border-radius: 12px;
  --transition: 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1140px;
  margin: auto;
  /* padding: 2rem 0; */
}

.hero {
  text-align: center;
  padding: 5rem 1rem 2rem;
  background-color: var(--accent);
}

.hero .highlight {
  color: var(--primary-color);
}

.tagline {
  font-size: 1.2rem;
  opacity: 0.9;
  margin-top: 1rem;
}

.navbar {
  background: #1a1a1a;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.navbar ul {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  padding: 1rem;
  gap: 1.5rem;
}

.navbar a {
  color: var(--link-color);
  text-decoration: none;
  font-weight: bold;
  transition: color var(--transition);
}

.navbar a:hover {
  color: #fff;
}

.section {
  padding: 3rem 0;
}

.section h2 {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: 2rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 0 0 transparent;
  border: 1px solid #2c2c2c;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.card h3 {
  margin-bottom: 0.5rem;
  color: #ffffff;
}

.card p {
  font-size: 0.95rem;
  color: #cccccc;
}

.contact-links a {
  color: var(--link-color);
  text-decoration: none;
}

.contact-links a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  padding: 2rem 1rem;
  background-color: #1a1a1a;
  font-size: 0.9rem;
  color: #999;
  margin-top: 3rem;
}

.scroll-top {
  display: inline-block;
  margin-top: 1rem;
  font-size: 1.1rem;
  color: var(--primary-color);
}

@media (max-width: 768px) {
  .tagline {
    font-size: 1rem;
  }

  .navbar ul {
    gap: 1rem;
    flex-direction: column;
  }

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