/* ==============================
   base.css — Shared layout for legacy-background pages
   - Full-screen background images sized with object-fit: contain
   - Transparent overlay elements positioned by JS to match the image
   - pointer-events: none on backgrounds so overlays receive clicks
   ============================== */

/* --- Reset & body --- */
html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  min-height: 100dvh;
  position: relative;
  overflow: hidden;
  background-color: #f1f1f1;
  font-family: Arial, sans-serif;
}

/* --- Background images ---
   Each page has a full-screen bg image (the legacy system screenshot).
   object-fit: contain keeps the aspect ratio; JS reads the rendered
   size to position overlay elements on top.
   pointer-events: none lets clicks pass through to the overlay layer. */
.bg-login {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  z-index: -1;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.bg-dashboard {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  z-index: -1;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.bg-dashboard2 {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  z-index: -1;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.bg-maptrackingsystem {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  z-index: -1;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

/* --- Dashboard overlay ---
   z-index: 3 sits above the background (-1) and login form (2). */
.dashboard-overlay {
  position: fixed;
  z-index: 3;
}

.logged-in-user-id {
  position: absolute;
  font-family: Arial, sans-serif;
  font-weight: 400;
  color: #5181ab;
  text-decoration: underline;
  line-height: 1;
  white-space: nowrap;
  pointer-events: none;
}

/* --- Hotspot links ---
   Invisible clickable areas laid over the background image.
   JS sets position/size; colour is transparent so the bg shows through. */
.dashboard-hotspot,
.logout-hotspot {
  position: absolute;
  display: block;
  color: transparent;
  font-size: 0;
  line-height: 0;
  text-decoration: none;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.dashboard-tab-button {
  appearance: none;
  -webkit-appearance: none;
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  margin: 0;
  border: 2px solid #111;
  border-radius: 0;
  background: linear-gradient(
    to bottom,
    #cfcfcf 0%,
    #e8e8e8 15%,
    #d1d1d1 50%,
    #b8b8b8 51%,
    #d2d2d2 100%
  );
  box-shadow: none;
  color: #222;
  font-family: Arial, sans-serif;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0;
  text-align: center;
  text-shadow: none;
  padding: 0;
  cursor: pointer;
}

.dashboard-tab-button:hover,
.dashboard-tab-button:active,
.dashboard-tab-button:focus {
  border: 2px solid #111;
  background: linear-gradient(
    to bottom,
    #9f9f9f 0%,
    #c6c6c6 8%,
    #eaeaea 16%,
    #e4e4e4 52%,
    #dbdbdb 78%,
    #d6d6d6 100%
  );
  box-shadow: none;
  color: #222;
  outline: 0;
}

.dashboard-hotspot:focus,
.logout-hotspot:focus {
  outline: 1px solid #ff7b7b;
  outline-offset: 0;
}

/* --- Login form overlay --- */
.login-form {
  position: fixed;
  z-index: 2;
}

.login-form input,
.login-form button {
  appearance: none;
  -webkit-appearance: none;
  position: absolute;
  box-sizing: border-box;
  margin: 0;
  border: 0;
  background: transparent;
  color: #333333;
  font-size: 12px;
  line-height: normal;
  padding: 0 6px;
}

.login-form input {
  height: 22px;
  font-family: Arial, sans-serif;
  font-size: 12px;
}

#loginButton {
  height: 22px;
  cursor: pointer;
  border: 0;
  color: transparent;
  opacity: 0;
  text-decoration: none;
  text-align: left;
  font-weight: 400;
  font-size: 0;
  padding: 0;
}

#showPasswordButton {
  height: 22px;
  border: 1px solid #8cbdf5;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.95);
  color: #2f7bbd;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  padding: 0;
  opacity: 1;
  cursor: pointer;
}

#showPasswordButton:active {
  background: rgba(223, 237, 255, 0.95);
}

.login-form input:focus,
.login-form button:focus {
  outline: 0;
  outline-offset: 0;
}

.login-status {
  position: absolute;
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.login-status.error {
  color: #b42318;
}

.login-status.success {
  color: #0f7a35;
}

/* --- Accessibility: screen-reader-only utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}