:root {
  --bg: #0b0b0b;
  --nav-bg: #12061f;
  --nav-link: #ffffff;
  --nav-link-hover: #ffd54f;
  --footer-bg: #f06292;
  --footer-text: #ffffff;
  --content-max: 1000px;
  --shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #fdfdfd;
  color: #222;
  overflow-x: hidden;
}

.site-header {
  background: var(--bg);
  padding: 0;
}

.header-inner {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
}

.header-image-link {
  display: block;
  line-height: 0;
}

.header-image {
  display: block;
  width: 100%;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  padding: 12px 16px;
  background: var(--nav-bg);
  box-shadow: 0 3px 10px rgba(0,0,0,0.18);
}

.nav-logo-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 6px;
}

.nav-logo {
  width: 52px;
  height: 52px;
  display: block;
  border-radius: 12px;
}

.site-nav a {
  color: var(--nav-link);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1.2;
}

.site-nav a:hover,
.site-nav a:focus {
  color: var(--nav-link-hover);
  text-decoration: underline;
}

main {
  padding: 24px 16px 28px;
}

section {
  max-width: var(--content-max);
  margin: 0 auto 24px;
}

main img.content-image {
  max-width: min(100%, var(--content-max));
  height: auto;
  display: block;
  margin: 24px auto;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease;
}

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

.home-button {
  display: inline-block;
  margin: 2em auto 0;
  padding: 12px 24px;
  background-color: #4CAF50;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  font-size: 1rem;
  text-align: center;
  transition: transform 0.3s ease;
}

.home-button:hover {
  transform: scale(1.05);
}

footer {
  text-align: center;
  background-color: var(--footer-bg);
  color: var(--footer-text);
  padding: 12px 16px;
}

@media (max-width: 900px) {
  .site-nav {
    gap: 14px;
    padding: 10px 14px;
  }

  .site-nav a {
    font-size: 0.94rem;
  }

  .nav-logo {
    width: 46px;
    height: 46px;
  }
}

@media (max-width: 680px) {
  .site-nav {
    justify-content: center;
    gap: 10px 14px;
    padding: 10px 12px;
  }

  .nav-logo-link {
    flex: 0 0 100%;
    margin-right: 0;
    margin-bottom: 2px;
  }

  .site-nav a {
    font-size: 0.9rem;
  }

  main {
    padding: 20px 14px 24px;
  }
}

@media (max-width: 480px) {
  .nav-logo {
    width: 42px;
    height: 42px;
    border-radius: 10px;
  }

  .site-nav {
    gap: 8px 12px;
  }

  .site-nav a {
    font-size: 0.88rem;
  }