/* === ОБЩИЕ СТИЛИ === */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f7fa;
  color: #333;
}

/* === НАВИГАЦИЯ === */
nav {
  background-color: #003366;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  padding: 15px 40px;
}

.nav-links {
  display: flex;
  gap: 20px;
  margin-left: auto;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  padding: 10px;
  transition: background-color 0.3s;
}

nav a:hover {
  background-color: #0059b3;
  border-radius: 5px;
}

/* === КОНТЕНТ === */
main {
  padding: 30px;
  max-width: 1000px;
  margin: 20px auto 0 auto;
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* === ЗАГОЛОВКИ === */
h1 {
  color: #003366;
  text-align: center;
}

/* === ПОДВАЛ === */
footer {
  text-align: center;
  padding: 15px;
  margin-top: 40px;
  background-color: #003366;
  color: white;
}

/* === МЕДИА === */
video, img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

/* === ГАЛЕРЕЯ === */
.gallery-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-top: 20px;
}

.gallery-grid img {
  max-width: 300px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* === ФОРМЫ === */
form {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 400px;
  margin: auto;
}

form input[type="text"],
form input[type="password"],
form input[type="submit"],
form input[type="email"],
form textarea {
  padding: 10px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

form input[type="submit"] {
  background-color: #003366;
  color: white;
  cursor: pointer;
}

form input[type="submit"]:hover {
  background-color: #0059b3;
}

/* === ОШИБКИ === */
.error {
  color: red;
  text-align: center;
  margin-top: 10px;
}

/* === ЛОГОТИП === */
.logo {
  padding: 0 20px;
}

.logo a {
  font-size: 32px;
  font-weight: bold;
  color: #ffffff;
  text-decoration: none;
}

.logo a:hover {
  color: #ffcc00;
}

/* === АДАПТИВНОСТЬ === */
@media (max-width: 768px) {
  nav {
    flex-direction: column;
    align-items: flex-start;
    padding: 15px 20px;
  }

  .nav-links {
    flex-direction: column;
    gap: 10px;
    margin-left: 0;
    width: 100%;
  }

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

  nav a {
    display: block;
    width: 100%;
    padding: 10px 0;
  }

  main {
    padding: 15px;
    margin-top: 10px;
  }

  h1 {
    font-size: 24px;
  }

  .logo a {
    font-size: 28px;
  }
}

@media (max-width: 480px) {
  .gallery-grid img {
    max-width: 90%;
  }

  .logo a {
    font-size: 24px;
  }

  h1 {
    font-size: 20px;
  }

  form input,
  form textarea {
    font-size: 14px;
  }
}