/** Login css is kept separate to avoid conflicts with the main allsky pages **/

/* Prevent dragging images/links */
img, a, svg {
  -webkit-user-drag: none;
  user-drag: none;
}

html, body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: var(--bs3-body-bg);
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* All canvases share the same base geometry */
[id$="Canvas"] {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* Only these canvases ignore pointer events */
#tailCanvas, #planeCanvas, #fxCanvas { pointer-events: none; }

/* Layering */
#bgCanvas   { z-index: 0; }
#tailCanvas { z-index: 1; }
#planeCanvas{ z-index: 2; }
#fxCanvas   { z-index: 3; }

.login-panel {
  position: relative;
  z-index: 4;
  width: 100%;
  max-width: 360px;
}

/* Panel */
.panel {
  background: var(--bs3-panel-bg);
  color: var(--bs3-body-color);
  border-color: var(--bs3-panel-border);
  border-radius: 6px;
  box-shadow: 0 0 15px rgba(0,0,0,.6);
}

.login-logo {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}

body.dark .login-logo {
	filter: brightness(1);
}

/* Form controls */
.form-control {
  background: var(--bs3-input-bg);
  border: 1px solid var(--bs3-input-border);
  color: var(--bs3-input-text);
}

.form-control:focus {
  background: var(--bs3-input-bg);
  border-color: var(--bs3-input-focus-border);
  color: var(--bs3-input-text);
  outline: 2px solid color-mix(in oklab, var(--bs3-input-focus-border), transparent 60%);
  outline-offset: 1px;
  box-shadow: none;
}

input.form-control { font-size: 1.5em; }

.checkbox label { color: var(--bs3-text-muted); }
.login-panel .checkbox label {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding-left: 0;
  font-size: 1.05em;
  cursor: pointer;
}
.login-panel .checkbox input[type="checkbox"] {
  position: static;
  width: 1.1em;
  height: 1.1em;
  margin: 0;
  transform: scale(1.35);
  transform-origin: center;
}

/* Buttons */
.btn-primary {
  background: var(--bs3-btn-primary-bg);
  border-color: var(--bs3-btn-primary-border);
}
.btn-primary:hover,
.btn-primary:focus {
  background: var(--bs3-btn-primary-hover-bg);
  border-color: var(--bs3-btn-primary-hover-border);
  color: var(--bs3-btn-primary-hover-text);
}

/* Simple flex helper */
.flex-right {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

/* Panel body offset to make room for avatar overlap */
.panel-body { padding-top: calc(var(--login-avatar-size) * 0.5 + 8px); }

/* ========== AVATAR ====================================================== */
.login-avatar {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translate(-50%, -50%);
  width: var(--login-avatar-size);
  height: var(--login-avatar-size);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;

  color: var(--bs3-body-color);
  font-size: clamp(28px, 10vw, 42px);
  line-height: 1;
  text-shadow: 0 2px 6px rgba(0,0,0,.45);

  background: radial-gradient(100% 100% at 30% 30%,
    var(--login-avatar-grad-a) 0%,
    var(--login-avatar-grad-b) 50%,
    var(--login-avatar-grad-c) 100%);

  border: var(--login-avatar-ring-w) solid var(--login-avatar-ring);
  box-shadow:
    0 6px 18px rgba(0,0,0,.7),
    inset 0 0 20px var(--login-avatar-glow-outer);
  z-index: 5;
}

.login-avatar::after {
  content: "";
  position: absolute;
  inset: calc(var(--login-avatar-ring-w) * -1.5);
  border-radius: 50%;
  box-shadow:
    0 0 0 2px var(--login-avatar-glow-inner),
    0 0 22px var(--login-avatar-glow-outer);
  pointer-events: none;
}

/* Theme toggle */
.theme-toggle {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 10;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--bs3-input-border);
  background: var(--bs3-panel-bg);
  color: var(--bs3-body-color);
  cursor: pointer;
  opacity: .85;
}
.theme-toggle:hover,
.theme-toggle:focus { opacity: 1; }