:root {
  --primary-color: #00ffff;
  --background-dark: #000;
  --background-footer: #111;
  --text-light: #fff;
  --text-muted: #666;
  --nav-height: 60px;
}

/* Reset and base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Montserrat', sans-serif;
  color: var(--text-light);
  background: var(--background-dark);
  line-height: 1.6;
  scroll-behavior: smooth;
  padding-top: var(--nav-height);
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.85);
  padding: 0 2rem;
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 100;
  box-shadow: 0 2px 5px rgba(0, 255, 255, 0.2);
}

.logo {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--primary-color);
  letter-spacing: 2px;
}

/* Hamburger Button */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  background: var(--primary-color);
  height: 3px;
  width: 25px;
  border-radius: 3px;
  position: relative;
  transition: all 0.3s ease-in-out;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

/* Toggle active animation */
.nav-toggle.nav-toggle-active .hamburger {
  background: transparent;
}

.nav-toggle.nav-toggle-active .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.nav-toggle.nav-toggle-active .hamburger::after {
  transform: rotate(-45deg);
  top: 0;
}

/* Nav Links */
.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links li a {
  text-decoration: none;
  color: var(--text-light);
  font-weight: 600;
  transition: 0.3s;
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
}

.nav-links li a:hover,
.nav-links li a:focus {
  color: var(--primary-color);
  background-color: rgba(0, 255, 255, 0.15);
  outline: none;
}

/* Hero Section */
.hero {
  height: 100vh;
  background: url("images/wallpaper.jpg") no-repeat center center/cover;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 1rem;
}

.hero-content h1 {
  font-size: 3rem;
  background: rgba(0, 0, 0, 0.7);
  padding: 1rem 1.5rem;
  border-radius: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 900;
}

.hero-content p {
  font-size: 1.3rem;
  margin-top: 1rem;
  color: #ccc;
  font-style: italic;
}

/* Sections */
.section {
  padding: 5rem 2rem;
  max-width: 900px;
  margin: auto;
  text-align: center;
}

.section h2 {
  font-size: 2.8rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-weight: 800;
  letter-spacing: 1px;
}

.section p {
  font-size: 1.15rem;
  max-width: 700px;
  margin: auto;
  color: #ddd;
  line-height: 1.6;
}

/* Footer */
footer {
  background: var(--background-footer);
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

.footer-content h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
  font-weight: 700;
}

.footer-content .socials {
  margin-top: 0.5rem;
  display: flex;
  justify-content: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.footer-content .socials a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 600;
  padding: 0.3rem 0.7rem;
  border-radius: 5px;
  transition: background-color 0.3s;
}

.footer-content .socials a:hover,
.footer-content .socials a:focus {
  background-color: var(--primary-color);
  outline: none;
}

/* Copyright */
footer p {
  font-size: 0.9rem;
  margin-top: 1.5rem;
  color: var(--text-muted);
}

/* Responsive */

/* Navbar hamburger show on small */
@media screen and (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    height: calc(100vh - var(--nav-height));
    width: 220px;
    flex-direction: column;
    align-items: start;
    padding: 2rem 1rem;
    gap: 1.5rem;
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    box-shadow: -3px 0 10px rgba(0,255,255,0.2);
    border-left: 2px solid var(--primary-color);
    z-index: 105;
  }

  .nav-links.nav-links-visible {
    transform: translateX(0);
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links li a {
    width: 100%;
    font-size: 1.2rem;
    padding: 0.5rem 1rem;
  }
}

/* Footer socials stacked on very small screens */
@media screen and (max-width: 480px) {
  .footer-content .socials {
    flex-direction: column;
    gap: 0.7rem;
  }
}