:root {
  /* Light Mode Defaults */
  --bg: #f4f5fa;
  --text: #121218;
  --surface: #ffffff;
  --border-color: rgba(0, 140, 255, 0.2);
  --neon-cyan: #0088cc;
  --neon-pink: #0db8fc;
  --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

/* Dark Mode Overrides (triggered by your JS adding .dark-mode to body) */
body.dark-mode {
  --bg: #07070a;
  --text: #f0f0f5;
  --surface: rgba(20, 20, 30, 0.85);
  --border-color: rgba(0, 243, 255, 0.3);
  --neon-cyan: #00f3ff;
  --neon-pink: #ffa600;
  --box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}

/* Main page layout */
body {
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  margin: 0;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
  padding: 20px;
}

/* Dark Mode Toggle Styling */
#dark-mode-toggle {
  margin-right: 6px;
}

label[for="dark-mode-toggle"] {
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
  display: inline-block;
  margin-bottom: 20px;
  padding: 6px 12px;
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--box-shadow);
}

/* Navigation bar */
nav {
  display: flex;
  gap: 20px;
  padding: 16px 24px;
  background-color: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--box-shadow);
  margin-bottom: 20px;
}

nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  transition: color 0.3s ease;
}

nav a:hover {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px var(--neon-cyan);
}

/* Headings */
h1, h2 {
  font-family: "Segoe UI", Roboto, sans-serif;
  color: var(--text);
}

h1 {
  font-size: 38px;
  font-weight: 800;
  text-shadow: 0 0 10px var(--neon-cyan);
}

/* Main Content Containers */
main {
  max-width: 700px;
  margin: 0 auto;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--box-shadow);
}

/* Sections & Text */
section {
  margin-bottom: 20px;
}

p {
  line-height: 1.6;
  color: var(--text);
  opacity: 0.9;
}

/* Images */
img {
  max-width: 350px;
  border-radius: 50%;
  border: 3px solid var(--neon-pink);
  box-shadow: 0 0 15px var(--neon-pink);
  display: block;
  margin: 20px 0;
}

/* Interactive Elements (Buttons & Skill Pills) */
button, .skill-pill {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--neon-cyan);
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  box-shadow: 0 0 8px rgba(0, 243, 255, 0.2);
  transition: all 0.2s ease;
}

button:hover, .skill-pill:hover {
  background: var(--neon-cyan);
  color: #07070a;
  box-shadow: 0 0 15px var(--neon-cyan);
}

.skills-list {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Horizontal Rules */
hr {
  border: none;
  height: 1px;
  background: var(--border-color);
  margin: 24px 0;
}

/* Footer */
footer {
  text-align: center;
  margin-top: 30px;
  color: var(--text);
  opacity: 0.7;
}