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

:root {
  --primary-black: #000000;
  --primary-yellow: #ffd700;
  --accent-yellow: #ffc107;
  --light-gray: #f5f5f5;
  --medium-gray: #e0e0e0;
  --dark-gray: #333333;
  --success-green: #4caf50;
  --text-gray: rgb(102, 102, 102);
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--dark-gray);
  overflow-x: hidden;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  z-index: 1001;
  transition: all 0.3s ease;
}

nav.is-scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 30px rgba(0, 0, 0, 0.15);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
}

.logo img {
  height: 36px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--dark-gray);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-yellow);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.btn-primary {
  background: var(--primary-yellow);
  color: var(--primary-black);
  padding: 0.75rem 2rem;
  border: none;
  border-radius: 50px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-black);
  padding: 0.75rem 2rem;
  border: 2px solid var(--primary-black);
  border-radius: 50px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.btn-secondary:hover {
  background: var(--primary-black);
  color: white;
  transform: translateY(-2px);
}

.nav-link:focus-visible,
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.footer-links a:focus-visible {
  outline: 3px solid rgba(255, 215, 0, 0.7);
  outline-offset: 3px;
}

/* Footer */
footer {
  background: var(--dark-gray);
  color: white;
  padding: 3rem 2rem 1rem;
  text-align: center;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: white;
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.footer-links a:hover {
  opacity: 1;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  margin-top: 2rem;
  opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
}