/* Universal Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* --- Header Styles --- */
.site-header {
  background-color: #222;
  color: #fff;
  padding: 1rem 0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 2rem;
  font-weight: bold;
  color: #ffc107;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  transition: color 0.3s ease;
}

.logo:hover {
  color: #fff;
}

.main-nav ul {
  display: flex;
  gap: 1.5rem;
}

.main-nav a {
  color: #fff;
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.3s ease;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: #007bff;
  transition: width 0.3s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.main-nav a:hover,
.main-nav a.active {
  color: #007bff;
}

.header-actions {
  display: flex;
  gap: 1rem;
}

.btn {
  padding: 0.6rem 1.2rem;
  border-radius: 5px;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease;
  white-space: nowrap;
}

.btn-login {
  background-color: transparent;
  color: #fff;
  border: 1px solid #007bff;
}

.btn-login:hover {
  background-color: #007bff;
  color: #fff;
}

.btn-register {
  background-color: #ffc107;
  color: #222;
  border: 1px solid #ffc107;
}

.btn-register:hover {
  background-color: #e0a800;
  border-color: #e0a800;
}

.hamburger-menu {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1000;
}

.hamburger-menu .bar {
  display: block;
  width: 25px;
  height: 3px;
  background-color: #fff;
  margin: 5px auto;
  transition: all 0.3s ease;
}

/* --- Footer Styles --- */
.site-footer {
  background-color: #222;
  color: #ccc;
  padding: 3rem 0;
  font-size: 0.9rem;
  border-top: 1px solid #333;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.footer-column h3 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid #333;
  padding-bottom: 0.5rem;
}

.footer-column p,
.footer-column li {
  margin-bottom: 0.5rem;
}

.footer-column a {
  color: #ccc;
  transition: color 0.3s ease;
}

.footer-column a:hover {
  color: #007bff;
}

.logo-footer {
  font-size: 1.8rem;
  font-weight: bold;
  color: #ffc107;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
  display: block;
}

.brand-info p {
  line-height: 1.5;
  margin-bottom: 1rem;
}

.copyright {
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: #888;
}

.contact-info strong {
  color: #fff;
}

/* --- Responsive Styles (Mobile) --- */
@media (max-width: 992px) {
  .main-nav ul {
    gap: 1rem;
  }
}

@media (max-width: 768px) {
  .header-container {
    flex-wrap: wrap;
    justify-content: space-between;
    padding: 0.8rem 1.5rem;
  }

  .logo {
    font-size: 1.8rem;
  }

  .hamburger-menu {
    display: block;
  }

  .main-nav {
    flex-basis: 100%;
    order: 3;
    display: none;
    background-color: #2c2c2c;
    padding: 1rem 0;
    margin-top: 0.5rem;
  }

  .main-nav.active {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    text-align: center;
    gap: 0;
  }

  .main-nav li {
    border-bottom: 1px solid #333;
  }

  .main-nav li:last-child {
    border-bottom: none;
  }

  .main-nav a {
    display: block;
    padding: 1rem;
    color: #fff;
  }

  .main-nav a::after {
    display: none;
  }

  .main-nav a:hover,
.main-nav a.active {
    background-color: #007bff;
    color: #fff;
  }

  .header-actions {
    flex-basis: 100%;
    order: 2;
    justify-content: center;
    margin-top: 1rem;
  }

  .site-header.nav-open .hamburger-menu .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .site-header.nav-open .hamburger-menu .bar:nth-child(2) {
    opacity: 0;
  }
  .site-header.nav-open .hamburger-menu .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-column h3 {
    border-bottom: none;
    padding-bottom: 0;
    margin-top: 1.5rem;
  }

  .brand-info .logo-footer {
    margin: 0 auto 1rem;
  }
}

@media (max-width: 480px) {
  .header-actions {
    flex-direction: column;
    align-items: center;
  }
  .btn {
    width: 80%;
  }
}