* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Russo One', sans-serif;
  background: #ffffff;
  color: #2c3e50;
  line-height: 1.6;
}

header {
  background: #3b5998;
  color: #fff;
  padding: 1.5em 2em;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1em;
  position: relative;
}

.header-left,
.header-right {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.logo img {
  width: 80px;
  height: auto;
  display: block;
}

.header-nav {
  flex-grow: 1;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: nowrap;
  gap: 1em;
}

.header-nav a {
  color: #fff;
  text-decoration: none;
  font-size: 1em;
  white-space: nowrap;
}

.header-nav a:hover {
  text-decoration: underline;
}

.hero {
  background: #ecf0f1;
  text-align: center;
  padding: 3em 1em;
}

.hero h1 {
  font-size: 2.5em;
  margin-bottom: 0.5em;
}

.hero .phone {
  font-size: 1.5em;
  color: #2980b9;
  margin-top: 1em;
}

section {
  padding: 2em 1em;
  max-width: 800px;
  margin: auto;
}

section h2 {
  margin-bottom: 0.5em;
  color: #2c3e50;
  font-size: 1.8em;
}

ul {
  list-style: disc;
  padding-left: 1.5em;
}

footer {
  background: #3b5998;
  color: #fff;
  text-align: center;
  padding: 1em;
  margin-top: 2em;
  font-size: 0.9em;
}

.header-phone {
  font-size: 1.2em;
  color: #fff;
}

.header-phone a {
  color: #fff;
  text-decoration: none;
}

.header-phone a:hover {
  text-decoration: underline;
}

.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: none;
}

@media (max-width: 768px) {
  header {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 1em;
    flex-wrap: nowrap;
  }

  .header-left {
    flex-grow: 1;
  }

  .header-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #3b5998;
    flex-direction: column;
    padding: 1em 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    z-index: 99;
  }

  .header-nav a {
    text-align: center;
    padding: 0.8em 0;
    font-size: 1.2em;
    display: block;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .header-nav a:last-child {
    border-bottom: none;
  }

  .nav-toggle-label {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    cursor: pointer;
    z-index: 100;
    margin-left: 1em;
  }

  .nav-toggle-label span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: #fff;
    border-radius: 2px;
    transition: all 0.3s ease-in-out;
  }

  #nav-toggle:checked + .nav-toggle-label span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  #nav-toggle:checked + .nav-toggle-label span:nth-child(2) {
    opacity: 0;
  }
  #nav-toggle:checked + .nav-toggle-label span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  #nav-toggle:checked ~ .header-nav {
    display: flex;
  }
}

#gallery {
  padding: 60px 20px;
  background-color: #f9f9f9;
  text-align: center;
}

#gallery h2 {
  margin-bottom: 40px;
  color: #333;
}

div.gallery {
  border: 1px solid #ccc;
  border-radius: 5px;
}

div.gallery:hover {
  border: 1px solid #777;
  box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

div.gallery img {
  width: 100%;
  height: 280px;
  display: block;
  border-radius: 5px 5px 0 0;
}

div.desc {
  padding: 15px;
  text-align: center;
  font-size: 0.9em;
  color: #555;
  background-color: #f1f1f1;
  border-top: 1px solid #eee;
  border-radius: 0 0 5px 5px;
}

.responsive {
  padding: 0 6px;
  float: left;
  width: 24.99999%;
  box-sizing: border-box;
  margin-bottom: 12px;
}

@media only screen and (max-width: 700px) {
  .responsive {
    width: 49.99999%;
  }
}

@media only screen and (max-width: 500px) {
  .responsive {
    width: 100%;
  }
}

.clearfix::after {
  content: "";
  display: table;
  clear: both;
}