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

  letter-spacing: 0.01rem;
}

/** COLOR VARIABLES */
:root {
  --black: #111111;
  --gold: #ffd700;
  --dark-gold: #d1b410;
  --light-gold: rgba(255, 215, 0, 0.5);
}

/** HEADER + NAV STYLING */
header {
  background-color: var(--black);
  position: sticky;
  top: 0;
  z-index: 999;
}

.banner {
  display: flex;
  justify-content: space-between;
  max-width: 90%;
  align-items: center;

  height: 4.5rem;

  margin: 0 auto;
  padding: 1rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--gold);
  text-decoration: none;
}

.navLink {
  color: var(--gold);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.navLink:hover {
  color: #fff;
}

/** BODY TAGS */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #666;
  background-color: var(--black);
}

main {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;

  text-align: center;

  width: 100%;
  padding: 0;
  margin: 0;
}

section {
  max-width: 60%;
  margin-top: 5rem;
  padding: 1rem 1rem;
}

/** TEXT TYPES */
a {
  color: var(--gold);
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  color: #fff;
  text-align: center;
}

h2 {
  font-size: 2rem;
  color: var(--gold);
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--gold);
}

h3 {
  font-size: 1.5rem;
  color: var(--black);
}

p {
  color: #fff;
}

/** FOOTER */
footer {
  display: flex;
  justify-content: space-between;

  margin: 5rem auto;
  padding: 2rem 0;

  max-width: 90%;

  background-color: var(--black);
  color: var(--gold);

  text-align: center;
}

#footer-left {
  width: 50%;
  text-align: left;
}
#footer-right {
  width: 50%;
  text-align: right;
}

/** "skip link" for screen readers */
.skipLink {
  position: absolute;
  top: -50px;
  left: 6px;
  background: #fff;
  color: var(--black);
  padding: 8px;
  text-decoration: none;
  font-weight: bold;
  border-radius: 4px;
  z-index: 1000;
}
.skipLink:focus {
  top: 6px;
}

/** BOOK NOW button */
#book-button {
  height: 7rem;
  min-width: 100%;

  background-color: var(--black);
  color: var(--gold);

  border: 1px solid var(--dark-gold);
  border-radius: 5rem;

  padding: 2rem 0;
  margin: 0;

  font-size: 2rem;
  font-weight: bold;
  text-decoration: none;
  transition: 0.5s ease;
}
#book-button:hover {
  cursor: pointer;
  background-color: var(--dark-gold);
  box-shadow: 0px 0px 30px var(--gold);
}
#book-button:active {
  background-color: var(--gold);
}

/** DESKTOP RULES */
@media screen and (min-width: 851px) {
  /** header */
  nav {
    display: flex;
    flex-direction: row;
    gap: 3rem;

    list-style: none;
  }

  /** content */
  h1 {
    font-size: 3rem;
  }

  #book-button {
    width: 50%;
  }
}

/* MOBILE RULES */
@media screen and (max-width: 850px) {
  /** header */
  header {
    padding: 0 1rem;
  }

  nav {
    display: flex;
    flex-direction: column;
    position: fixed;
    gap: 1rem;

    padding: 2rem 0;

    top: -12rem;
    left: 0;
    width: 100%;

    font-size: 1rem;
    text-align: center;
    background-color: var(--black);
    transition: top 0.5s ease;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    z-index: -1;
  }

  nav.active {
    top: 1.5rem;
  }

  /** footer */
  footer {
    font-size: 0.9rem;
  }

  /** content rules */
  h1 {
    font-size: 2rem;
  }

  #book-button {
    font-size: 1.75rem;
    width: 85%;
  }
}
