:root {
  --primary: #0f1115;
  --secondary: #151821;
  --text1: #E6E8EE;
  --text2: #8B98AF;
  --accent1: #252B39;
  --accent2: #003566;
  --soft-glow: rgba(0, 50, 100, 0.5);
  --soft-shadow: rgba(0, 0, 0, 0.4);
  --soft-surface: rgba(255, 255, 255, 0.02);
}

* {
  box-sizing: border-box;
}

body {
  line-height: 1.6;
  color: var(--text1);
  background: var(--primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.container {
  width: 90%;
  margin: 0 auto;
  max-width: 1100px;
}

.sub {
  margin: 0;
}

.muted {
  color: var(--text2);
}

a {
  color: var(--text2);
  text-decoration: none;
}

a:hover {
  color: var(--text1);
}

/* Intro */
.intro {
  padding: 6rem 4rem 1.5rem;
}

.intro-head {
  text-align: center;
  margin-bottom: 1.5rem;
}

.intro-head h1 {
  margin: 0;
  font-size: 2.4rem;
  font-weight: 400;
  letter-spacing: 0.4rem;
}

.intro-body {
  max-width: 820px;
  margin: auto;
  background: var(--secondary);
  border: 1px solid var(--accent1);
  border-radius: 16px;
  padding: 1.4rem;
  box-shadow: 0 20px 60px var(--soft-shadow);
}

.intro-links {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

/* Skills */
.skills {
  padding: 2rem;
  margin-bottom: 6rem;
}

.skills-head {
  text-align: center;
  margin-bottom: 1.5rem;
}

.skills-head h2 {
  margin: 0;
  font-size: 2rem;
  font-weight: 600;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.taglist {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.6rem;
  border-radius: 42px;
  font-size: 0.9rem;
  background: var(--soft-surface);
  border: 1px solid var(--accent1);
  color: var(--text1);
  transition: background 150ms ease;
  user-select: none;
}

.tag:hover {
  background: var(--accent1);
}

/* Panels */
.panel {
  padding: 1.4rem;
  border-radius: 16px;
  background: var(--secondary);
  border: 1px solid var(--accent1);
  box-shadow: 0 20px 60px var(--soft-shadow);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.panel:hover {
  transform: translateY(-2px);
  border-color: var(--accent2);
  box-shadow: 0 20px 60px var(--soft-shadow), 0 0 30px var(--soft-glow);
}

.panel-title {
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--accent1);
}

.panel-title h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
}

/* Responsiveness */
@media (max-width: 800px) {
  .skills-grid {
    grid-template-columns: 1fr;
  }

  .intro {
    padding: 4rem 2rem 1.5rem;
  }
}