/* Reset and Base Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }
body, html { height: 100%; font-family: 'Roboto', sans-serif; color: #333; }

/* Hero Slider */
#hero { position: relative; height: 100vh; background-size: cover; background-position: center; animation: slide 20s infinite; }
@keyframes slide {
  0% { background-image: url('https://picsum.photos/seed/water/1920/800'); }
  33% { background-image: url('https://picsum.photos/seed/nature/1920/800'); }
  66% { background-image: url('https://picsum.photos/seed/river/1920/800'); }
  100% { background-image: url('https://picsum.photos/seed/wild/1920/800'); }
}
#hero .overlay { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: center; color: #fff; text-shadow: 0 2px 10px rgba(0,0,0,0.7); }
#hero .overlay h1 { font-size: 3em; font-weight: 700; }
#hero .overlay p { font-size: 1.2em; margin-top: 10px; }
#hero .btn { display: inline-block; margin-top: 20px; padding: 12px 24px; background: rgba(255,255,255,0.8); color: #333; text-decoration: none; border-radius: 4px; font-weight: bold; }

/* Sections */
section { padding: 60px 20px; }
.container { max-width: 1200px; margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: center; align-items: center; }

/* Features */
#features .feature { flex: 1 1 300px; margin: 20px; text-align: center; }
#features .feature img { width: 100%; height: auto; border-radius: 8px; }

/* Gallery */
#gallery { position: relative; }
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); grid-auto-rows: 200px; gap: 10px; }
.gallery-item { background-size: cover; background-position: center; cursor: pointer; }
.gallery-text { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); color: #fff; text-shadow: 0 2px 10px rgba(0,0,0,0.7); text-align: center; }
.gallery-text h2 { font-size: 2.5em; margin-bottom: 10px; }

/* Sauna Section */
#sauna img { width: 100%; max-width: 600px; margin-top: 20px; border-radius: 8px; }

/* Booking Forms */
.form-wrapper { flex: 1 1 400px; margin: 20px; background: #f9f9f9; padding: 20px; border-radius: 8px; }
.form-wrapper h3 { margin-bottom: 15px; }
.form-wrapper label { display: block; margin-top: 10px; font-weight: 500; }
.form-wrapper input { width: 100%; padding: 8px; margin-top: 5px; border: 1px solid #ccc; border-radius: 4px; }
.btn { display: inline-block; padding: 10px 20px; background: #28a745; color: #fff; border: none; border-radius: 4px; cursor: pointer; margin-top: 15px; text-decoration: none; text-align: center; }
.btn:hover { background: #218838; }

/* Footer */
footer { text-align: center; padding: 20px; background: #333; color: #fff; }
/* Modal lightbox styles */
.modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgba(0,0,0,0.9); }
.modal-content { display: block; margin: auto; max-width: 80%; max-height: 80%; }
.close { position: absolute; top: 20px; right: 35px; color: #fff; font-size: 40px; font-weight: bold; cursor: pointer; }
.modal-caption { margin: auto; display: block; text-align: center; color: #ccc; padding: 10px 20px; }
@media only screen and (max-width: 700px) {
  .modal-content { width: 100%; }
}
/* Navigation arrows in modal */
.prev, .next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: #fff;
  font-size: 30px;
  padding: 16px;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
}
.prev { left: 20px; }
.next { right: 20px; }
.prev:hover, .next:hover { color: #bbb; }