:root {
    --primary-blue: #1a1aff;
    --bg-color: #0d0d0d;
    --medium-dark: #1a1a1a;
    --text-light: #f5f5f5;
    --text-color: #f5f5f5;
    --text-secondary: #B0B0B0; /* Slightly muted text for less emphasis */
    --accent-blue: #00BFFF; /* Your current primary blue accent */
    --accent: #73C2FB;
    --font-main: 'Poppins', sans-serif;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    --gradient: linear-gradient(90deg, rgba(18, 35, 59, 0.4), rgba(46, 88, 148, 0.3));
}

.light-mode {
    --bg-color: #f5f5f5;
    --medium-dark: #e0e0e0;
    --text-light: #1a1a1a;
    --text-color: #1a1a1a;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    /* --gradient: linear-gradient(90deg, rgba(46, 88, 148, 0.2), rgba(18, 35, 59, 0.1)); */
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    scroll-behavior: smooth;
    margin: 0;
    cursor: default;
}

html {
    scroll-behavior: smooth;
}

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

.fade-in {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
  will-change: opacity, transform;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

a {
  color: var(--primary-blue);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

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

.btn {
  margin-top: clamp(10px, 2vw, 20px);
  display: inline-block;
  padding: clamp(10px, 2vw, 12px) clamp(20px, 3vw, 24px);
  border-radius: clamp(8px, 2vw, 12px);
  background: linear-gradient(135deg, var(--accent), var(--primary-blue));
  color: #fff;
  text-decoration: none;
  border: none;
  font-size: clamp(0.9rem, 2vw, 1rem);
  font-weight: 600;
  box-shadow: 0 4px clamp(10px, 2vw, 15px) rgba(0, 191, 255, 0.3);
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn:hover {
  background: linear-gradient(135deg, var(--primary-blue), var(--accent));
  transform: translateY(-2px);
  box-shadow: 0 6px clamp(12px, 2vw, 18px) rgba(0, 191, 255, 0.5), 0 0 10px rgba(0, 191, 255, 0.7);
}

.btn:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  width: 80%;
  max-width: clamp(600px, 60vw, 800px);
  margin: clamp(40px, 6vh, 60px) auto;
  opacity: 0.7;
}