body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  background-color: #8d959c;
  color: #111;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #0a1c2b;
  color: #fff;
  padding: 0.8rem 1.2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  font-weight: bold;
  letter-spacing: .05em;
}

#menu-btn {
  font-size: 1.8rem;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
}

#menu {
  display: none;
  flex-direction: column;
  background: #0a1c2b;
}

#menu a {
  color: #fff;
  padding: .8rem 1rem;
  text-decoration: none;
  border-top: 1px solid #12283c;
}

#menu a:hover {
  background: #12283c;
}

#menu.show { display: flex; }

@media (min-width:768px){
  #menu { display:flex; flex-direction:row; background:none; }
  #menu a { border:none; }
  #menu-btn { display:none; }
}

#hero {
  height: 100vh;
  background: url("../img/door.jpg") center center no-repeat;
  background-size: contain;
  background-color: #8d959c;
  background-attachment: fixed;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ===== Overlay ===== */
#overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 28, 43, 0.92);
  color: #fff;
  z-index: 200;
  overflow-y: auto;
}

.overlay-content {
  max-width: 800px;
  margin: 4rem auto;
  padding: 2rem;
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  position: relative;
}

#close-btn {
  position: absolute;
  top: 10px;
  right: 16px;
  font-size: 2rem;
  color: #fff;
  background: none;
  border: none;
  cursor: pointer;
}

#overlay-body {
  margin-top: 1.5rem;
  line-height: 1.5;
  color: #e3e6e8;
}

footer {
  text-align: center;
  padding: 1.5rem 0;
  color: #ccc;
  background: #0a1c2b;
  font-size: 0.9rem;
}

/* Better link visibility for dark backgrounds */
a {
  color: #9ecfff;          /* soft light blue that contrasts dark navy */
  text-decoration: none;   /* optional: remove underline */
}

a:hover,
a:focus {
  color: #ffffff;          /* bright white on hover */
  text-decoration: underline; /* show intent */
}