/* ==== RESET + BASE ==== */
html, body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #000;
  color: white;
  height: 100%;
  width: 100%;
  overflow-x: hidden;
  box-sizing: border-box;
}

*, *::before, *::after {
  box-sizing: inherit;
}

a.white-link,
a.white-link:visited,
a.white-link:active {
  color: #ccc;
  text-decoration: underline;
  transition: color 0.2s ease;
}

a.white-link:hover {
  color: #fff;
  text-decoration: none;
}

.loading-spinner {
  display: inline-block;
  width: 0.75em;
  height: 0.75em;
  border: 2px solid white;
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
  margin-left: 0.2em;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.status-dot {
  display: inline-block;
  width: 0.65em;
  height: 0.65em;
  border-radius: 50%;
  margin-right: 0.4em;
  background-color: #444; /* default: offline */
  vertical-align: middle;
}

.status-dot.online {
  background-color: #3f3; /* bright green */
}

/* ==== NAVBAR ==== */
.navbar {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #222;
  color: white;
  padding: 0.5rem 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-left {
  position: absolute;
  left: 1rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.navbar-title {
  font-size: 1.5rem;
  font-weight: bold;
  text-align: center;
}

/* ==== MENU ==== */
.hamburger {
  cursor: pointer;
  font-size: 1.8rem;
  padding: 0.25rem;
}

.menu {
  display: none;
  flex-direction: column;
  background-color: #111;
  position: absolute;
  top: 100%;
  left: 0;
  width: 200px;
  z-index: 1000;
  padding: 1rem;
}

.menu.open {
  display: flex;
}

.menu a {
  color: white;
  padding: 0.5rem 0;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.menu a img {
  height: 20px;
  width: 20px;
  object-fit: contain;
}

/* ==== CAROUSEL WRAPPER ==== */
.carousel-wrapper {
  overflow-x: hidden;
  position: relative;
  width: 100%;
  justify-content: center;
  display: flex;
  align-items: center;
  min-height: 60vh;
}

/* ==== CAROUSEL ==== */
.carousel {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  scroll-snap-stop: always;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 0 10vw;
}

.carousel::-webkit-scrollbar {
  display: none;
}

/* ==== CARD ==== */
.card {
  flex: 0 0 auto;
  aspect-ratio: 5 / 4;
  perspective: 1000px;
  cursor: pointer;
  border-radius: 10px;
  background-color: #111;
  box-shadow: 0 0 8px rgba(0,0,0,0.7);
  transition: width 0.3s ease, height 0.3s ease;
  scroll-snap-align: center;
  margin: 0 1rem;
  width: 60vw;
  max-width: 400px;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.card.flipped .card-inner {
  transform: rotateY(180deg);
}

.card-front, .card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 10px;
  overflow: hidden;
}

.card-front img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 10px;
}

.card-back {
  background-color: #333;
  color: white;
  font-size: 1.1rem;
  transform: rotateY(180deg);
  border: 2px solid #555;
  padding: 1rem;
  text-align: center;
  display: block;
}

.card-back-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 0.75rem;
}

.card-back .status {
  text-align: left;
  width: 100%;
  max-width: 90%;
}

.card-back-content .white-link {
  margin-top: -2rem;
}

/* ==== BUTTON ==== */
.carousel-button {
  background-color: #1f1f1f;
  color: white;
  border: 1px solid #555;
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-size: 1.5rem;
  border-radius: 8px;
  z-index: 10;
  flex-shrink: 0;
}

.carousel-button:hover {
  background-color: #333;
}

/* ==== RESPONSIVE STYLES ==== */
@media screen and (max-width: 599px) {
  .carousel {
    padding: 0;
  }
  .carousel-wrapper {
    padding: 0;
  }
  .card {
    width: 90vw;
    margin: 0 auto;
  }
  .carousel-button {
    display: none;
  }
}

@media screen and (min-width: 600px) and (max-width: 1023px) {
  .carousel {
    padding: 0 5vw;
  }
  .carousel-wrapper {
    padding: 0 calc(50vw - 125px - 0.5rem);
  }
  .card {
    width: 250px;
    margin: 0 0.5rem;
  }
}

@media screen and (min-width: 1024px) {
  .carousel {
    padding: 0 20vw;
  }
  .carousel-wrapper {
    padding: 0;
  }
  .card {
    width: 400px;
    margin: 0 1rem;
  }
}