/* -------------------- OGÓLNE -------------------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

html,
body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* -------------------- HEADER -------------------- */
.header {
  min-height: 100vh;
  width: 100%;
  background-image: linear-gradient(rgba(4, 9, 30, 0.7), rgba(4, 9, 30, 0.7)),
    url("images/banner.jpeg");
  background-position: center;
  background-size: cover;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* -------------------- NAV -------------------- */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 6%;
  height: 80px;
}

nav img {
  width: 150px;
}

.nav-links {
  flex: 1;
  text-align: right;
}

.nav-links ul {
  list-style: none;
}

.nav-links ul li {
  display: inline-block;
  padding: 8px 12px;
}

.nav-links ul li a {
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  transition: color 0.3s ease;
}

.nav-links ul li a:hover {
  color: white;
}

.nav-links ul li::after {
  content: "";
  width: 0%;
  height: 2px;
  background: white;
  display: block;
  margin: auto;
  transition: 0.5s;
}

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

/* -------------------- HERO TEXT -------------------- */
.text-box {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #fff;
  width: 90%;
}

.text-box h1 {
  font-size: 48px;
  font-weight: 600;
}

.text-box p {
  font-size: 18px;
  margin: 20px 0;
}

.hero-btn {
  display: inline-block;
  text-decoration: none;
  color: white;
  border: 1px solid #fff;
  padding: 12px 34px;
  font-size: 14px;
  background: transparent;
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
  border-radius: 25px;
}

.hero-btn:hover {
  background: white;
  color: black;
}

/* -------------------- HAMBURGER -------------------- */
nav .fa {
  display: none;
  font-size: 24px;
  cursor: pointer;
}

@media (max-width: 900px) {
  .text-box h1 {
    font-size: 28px;
  }

  .text-box p {
    font-size: 14px;
  }

  .hero-btn {
    padding: 10px 25px;
    font-size: 12px;
  }
}

@media (max-width: 700px) {
  nav img {
    width: 120px;
  }

  .nav-links {
    position: absolute;
    background: rgba(0, 0, 0, 0.95);
    height: 100vh;
    width: 200px;
    top: 0;
    right: -200px;
    text-align: left;
    transition: 0.5s;
    padding-top: 60px;
  }

  .nav-links ul {
    display: block;
  }

  .nav-links ul li {
    display: block;
    margin: 20px 0;
  }

  nav .fa {
    display: block;
    color: white;
  }

  body.menu-open .text-box {
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
  }

  .text-box {
    transition: opacity 0.4s ease;
  }
}