:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --accent: #00f0ff;
  --dark: #0f172a;
  --light: #f8fafc;
  --gray: #94a3b8;
  --border-radius: 12px;
  --header-bg: linear-gradient(to bottom, #c7d6e9, #ffffff);
  --tech-bg: radial-gradient(circle at 50% 50%, #354976 0%, #020308 100%);
  --text-light: rgba(255,255,255,0.8);
  --menu-transition: cubic-bezier(0.4, 0, 0.2, 1);
  --menu-speed: 0.3s
}

html {
  scroll-behavior: smooth;
  box-sizing: border-box;
}

*, *:before, *:after {
  box-sizing: inherit;
}

/* Base Styles */
body {
  font-family: 'Space Grotesk', 'Inter', sans-serif; /* Prioritize Space Grotesk */
  background-color: #ffffff;
  color: var(--dark);
  margin: 0;
  padding: 0;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* image responsiveness */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* global section styling */
section {
  padding: 6rem 0;
}

/* container class for consistency */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Contact Popup Modal */
.contact-popup {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0; top: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.45);
  justify-content: center;
  align-items: center;
  transition: opacity 0.2s;
}
.contact-popup.active {
  display: flex;
}
.contact-popup-content {
  background: #fff;
  padding: 2rem 2.5rem;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
  text-align: center;
  position: relative;
  max-width: 90vw;
}
.contact-popup-close {
  position: absolute;
  top: 12px; right: 18px;
  font-size: 2rem;
  color: #888;
  cursor: pointer;
  transition: color 0.2s;
}
.contact-popup-close:hover {
  color: #222;
}