body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: rgb(255, 248, 240);
  margin: 0;
  padding: 0;
  padding-top: 70px;
}

section {
  width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
}


h2 {
  margin-bottom: 1rem;
  font-size: 2rem;
  color: #222;
  border-bottom: 2px solid #D1495B;
  display: inline-block;
  padding-bottom: 0.3rem;
}

h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: #444;
}




/* navigation bar  */


#top {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 9999; 
  background: #003D5B;
  padding: 1rem;
}

/* Стили для логотипа */
.logo {
    color: rgb(255, 248, 240);
    font-size: 1.5em; 
    font-weight: bold;
    text-decoration: none;

}


.navbar {
    background-color: #003D5B !important; 
    
}


.nav_links {
  color: rgb(255, 248, 240);
  font-weight: 500;
  text-decoration: none;
 
}

.nav_links:hover {
  color: #D1495B;
}



.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #003D5B;
    box-sizing: border-box; 
    padding: 1rem 2rem; 
    display: flex;
    align-items: center; 
    justify-content: space-between; 
    z-index: 9999;
}

.logo {
    color: rgb(255, 248, 240);
    font-size: 1.5em; 
    font-weight: bold;
    text-decoration: none;
}

.nav-links-container {
    display: flex; 
    gap: 20px; 
}

.main-nav .nav-link {
    color: rgb(255, 248, 240);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.main-nav .nav-link:hover {
    color: #D1495B;
}





.hamburger {
    display: none; 
    font-size: 1.5rem;
    background: none;
    border: none;
    color: rgb(255, 248, 240);
    cursor: pointer;
    z-index: 10000; 
}


@media (max-width: 768px) {
    .main-nav {
        flex-wrap: wrap; 
    }

    .hamburger {
        display: block; 
    }

    .nav-links-container {
        width: 100%; 
        flex-direction: column; 
        align-items: center;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-in-out;
    }

    .main-nav.active .nav-links-container {
        max-height: 300px; 
        padding-bottom: 10px;
    }
}











/* Hero section */
#hero {
  position: relative;
  width: 90%;
  height: 400px; /* секция фиксированной высоты */
  background: url('background.jpeg') no-repeat center center/cover;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden; /* чтобы затемнение не выходило за пределы */
}

/* затемнение фона */
#hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4); /*именно это затемняет фото */
  z-index: 0;
}

/* Текстовый блок */
.hero-content {
  position: absolute; 
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  max-width: 80%;  
  z-index: 1;      /* текст поверх overlay */
  color: white;
}

/* Заголовок */
#hero h1 {
  font-size: 3rem;
  margin-bottom: 10px;
}

/* Подзаголовок */
#hero p {
  font-size: 1.3rem;
}

/* Адаптив под мобильные устройства */
@media (max-width: 768px) {
  #hero h1 {
    font-size: 2rem;
  }
  #hero p {
    font-size: 1rem;
  }
}





/* Services Section */
#services {
  padding: 50px 10%;
  text-align: center;
  background: #f9f9f9;
}

#services h2 {
  font-size: 2.2rem;
  margin-bottom: 30px;
}





.card-container {
  display: flex;
  justify-content: space-between;
  gap: 20px; 
  flex-wrap: wrap;
}

.card {
  flex: 1 1 calc(33.333% - 20px); /* 3 в ряд */
  min-width: 250px;
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s, box-shadow 0.3s;
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card h3 {
  font-size: 1.5rem;
  margin: 15px;
}

.card p {
  font-size: 1rem;
  margin: 0 15px 15px;
  flex-grow: 1;
}

.card button {
  margin: 15px;
  padding: 10px 15px;
  border: none;
  background: #333;
  color: white;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.3s;
}

.card button:hover {
  background: #555;
}

/* Hover эффект */
.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

/*  Планшеты: 2 карточки */
@media (max-width: 1024px) {
  .card {
    flex: 1 1 calc(50% - 20px);
  }
}

/* Мобильные: 1 карточка */
@media (max-width: 768px) {
  .card {
    flex: 1 1 100%;
  }
}










.why-choose-us {
  width: 1200px;
  margin: 3rem auto;
  padding: 2rem 1rem;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.why-choose-us h2 {
  text-align: center;
  font-size: 2rem;
  color: #222;
  margin-bottom: 2rem;
  border-bottom: none;
}

.choose-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  text-align: left;
}

.choose-text {
  flex: 1;
}

.choose-text h3 {
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  color: #003D5B;
  font-size: 1.3rem;
}

.choose-text p {
  margin-bottom: 1rem;
  font-size: 1rem;
  color: #444;
}

.choose-image {
  flex: 1;
  display: flex;
  justify-content: center;
}

.choose-image img {
  max-width: 100%;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}






/* Portfolio Section */
.portfolio {
  margin: 3rem auto;
  text-align: center;
}

.portfolio h2 {
  margin-bottom: 2rem;
  font-size: 2rem;
  color: #222;
  border-bottom: none;
}





.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr); 
  gap: 15px; 
}
.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
}
.portfolio-item img {
  width: 100%;
  height: 200px; 
  object-fit: cover;
  transition: transform 0.3s;
}
.portfolio-item:hover img {
  transform: scale(1.1);
}
.portfolio-item .overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0,0,0,0.6);
  color: #fff;
  padding: 10px;
  text-align: center;
  opacity: 0;
  transition: opacity 0.3s;
}
.portfolio-item:hover .overlay {
  opacity: 1;
}


/* Адаптивность */
@media (max-width: 1024px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr); /* 2 колонки на планшетах */
  }
}

@media (max-width: 768px) {
  .portfolio-grid {
    grid-template-columns: 1fr; /* 1 колонка на мобильных */
  }
}









form {
  background: #00798C;
  padding: 2rem;
  color: rgb(255, 248, 240);
  border-radius: 8px;
}

form fieldset {
  border: none;
  margin-bottom: 1.5rem;
}

form legend {
  font-weight: bold;
  margin-bottom: 0.5rem;
}

form label {
  display: block;
  margin-bottom: 0.3rem;
  font-weight: 500;
}

form input,
form select,
form textarea {
  width: 100%;
  padding: 0.6rem;
  margin-bottom: 1rem;
  border: 1px solid rgb(255, 248, 240);
  border-radius: 4px;
}

form button {
  background: #D1495B;
  border: none;
  padding: 0.8rem 1.5rem;
  font-size: 1rem;
  font-weight: bold;
  border-radius: 4px;
  cursor: pointer;
  color: rgb(255, 248, 240);
}

form button:hover {
  background: #a83847;
}

textarea {
  resize: vertical;
  max-width: 100%;
  box-sizing: border-box;
}


footer {
  text-align: center;
  padding: 1.5rem;
  background: #003D5B;
  color: rgb(255, 248, 240);
  margin-top: 3rem;
}

footer nav {
  margin-top: 0.5rem;
}

footer nav a {
  color: #D1495B;
  margin: 0 0.5rem;
  text-decoration: none;
}



/* ============================= */
/* Grid Layout для Task 3 */
/* ============================= */

/* Контейнер всей страницы */


.grid-container {
  display: grid;
  grid-template-areas:
    "header header"
    "sidebar main"
    "footer footer";
  grid-template-columns: 250px 1fr; /* Sidebar и main */
  grid-template-rows: auto 1fr auto; /* Header, content, footer */
  gap: 10px;
}

.header {
  grid-area: header;
}
.sidebar {
  grid-area: sidebar;
  background-color: #f4f4f4;
  padding: 1rem;
  border-radius: 10px;
}
.main-content {
  grid-area: main;
  padding: 1rem;
}
.footer {
  grid-area: footer;
  background-color: #003D5B;
  color: rgb(255, 248, 240);
  text-align: center;
  padding: 1.5rem;
  margin-top: 0;
}

/* ============================= */
/* Адаптивность Grid */
/* ============================= */
@media (max-width: 1024px) {
  .grid-container {
    grid-template-areas:
      "header"
      "main"
      "sidebar"
      "footer";
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .sidebar {
    margin-top: 1rem;
  }
}

.sidebar {
  position: sticky;
  top: 80px; /* отступ от верхнего navbar, чтобы не перекрывать */
  background-color: #f4f4f4;
  padding: 1rem;
  border-radius: 10px;
}


.sidebar-social a {
  margin-right: 10px;
  color: #003D5B; /* основной цвет */
  transition: color 0.3s;
}

.sidebar-social a:hover {
  color: #D1495B; /* при наведении */
}