/* theme variables */
:root {
    --bg-color: #eaeefc;
    --text-color: #000;
    --card-bg: #fff;
    --card-border: rgba(0,0,0,0.2);
  }
  :root.dark {
    --bg-color: #000529;
    --text-color: #e0e0e0;
    --card-bg: #12121a;
    --card-border: rgba(255,255,255,0.2);
  }
  
  /* page & layout */
  body {
    margin: 0;
    padding: 0;
    background: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
  }
  
  /* logo & toggle */
  .logo {
    position: fixed;
    top: 1rem;
    left: 1rem;
    max-height: 40px;
    width: auto;
  }
  .theme-switch {
    position: fixed;
    top: 1rem;
    right: 1rem;
    width: 50px;
    height: 26px;
    display: inline-block;
  }
  .theme-switch input {
    opacity: 0; width: 0; height: 0;
  }
  .slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: #ccc;
    border-radius: 34px;
    transition: background 0.3s;
  }
  .slider:before {
    content: "";
    position: absolute;
    left: 4px; top: 4px;
    width: 18px; height: 18px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.3s;
  }
  input:checked + .slider { background: #4a4a4a; }
  input:checked + .slider:before { transform: translateX(24px); }
  
  /* device grid */
  .devices {
    display: flex;
    /* grid-template-columns: repeat(auto-fit, minmax(120px,1fr)); */
    gap: 1rem;
    width: 100%;
    max-width: 600px;
    padding: 1rem;
    margin-top: 5rem; /* push below toggle/logo */
    box-sizing: border-box;
    flex-direction: column;
    align-items: center;
  }
  
  /* each “button” */
  .device {
    text-decoration: none;
    color: var(--text-color);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
    width: 15rem;
    height: 10rem;
  }
  .device:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
  }
  
  .device img {
    width: 15rem;
    height: 9rem;
    object-fit: fill;
    border-radius: 4px;
  }
  
  .device .label {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    text-align: center;
    line-height: 1.2;
  }
/* ──────────────────────────────────────────────────────────────── */
/* Mobile: vertical carousel with bigger images (up to 480px wide) */
@media (max-width: 480px) {
    .devices {
      display: block;
      height: calc(100vh - 5rem);    /* leave room for header area */
      overflow-y: auto;
      scroll-snap-type: y mandatory;
      -webkit-overflow-scrolling: touch;
      padding: 1rem 0;
      margin-top: 4rem;              /* push below logo/toggle */
    }
  
    .device {
      scroll-snap-align: start;
      width: 90%;
      max-width: 15rem;
      margin: 0 auto 1.5rem;
      padding: 1rem;
      flex-direction: column;
    }
  
    .device img {
      width: 14rem;
      height: 9rem;
      border-radius: 6px;
    }
  
    .device .label {
      margin-top: 0.75rem;
      font-size: 1rem;
    }
  
    /* Optional: hide the scrollbar on WebKit */
    .devices::-webkit-scrollbar {
      width: 0;
      background: transparent;
    }
  }
  
  /* ──────────────────────────────────────────────────────────────── */
  /* Desktop/tablet above 480px remains the same grid-layout */
    
/* ─── modal overlay ─────────────────────────────────────── */
.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.75);
  padding: 1rem;
  z-index: 1000;
}
.modal.active { display: flex; }

/* iframe scales responsively (16:9) */
.modal iframe {
  width: 90vw;
  max-width: 560px;
  aspect-ratio: 16 / 9;
  border: none;
  border-radius: 8px;
  background: #000;       /* prevents flash of white */
}

/* close button */
.modal .close {
  position: absolute;
  top: 0.75rem;
  right: 1rem;
  font-size: 2rem;
  color: #fff;
  background: transparent;
  border: 0;
  cursor: pointer;
}

/* dark-mode overlay already looks fine, no extra vars needed */