/* === PAGE LAYOUT === */

:root {
  color-scheme: dark;
  --page-bg: #000;
  --ink: #f8f8f5;
  --muted: rgba(248, 248, 245, 0.52);
  --line: rgba(248, 248, 245, 0.16);
  --focus: #f2efe4;
  --input-bg: transparent;
  --input-border: rgba(248, 248, 245, 0.18);
  --page-glow: rgba(255, 255, 255, 0.045);
  --login-input-color: #f8f8f5;
  --logo-hover-filter: brightness(0) invert(1);
  --wordmark-color: rgba(248, 248, 245, 0.82);
  --wordmark-hover-color: #f8f8f5;
}

:root[data-adaptive-theme="light"] {
  --login-input-color: #444442;
  --logo-hover-filter: brightness(0) saturate(100%) invert(20%) sepia(73%) saturate(1230%) hue-rotate(171deg) brightness(88%) contrast(101%);
  --wordmark-color: #004a6f;
  --wordmark-hover-color: #004a6f;
}

body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(circle at 50% 42%, var(--page-glow), transparent 30rem),
    var(--page-bg);
  color: var(--ink);
  font-family: Arial, sans-serif;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;

  opacity: 1;
  transition:
    opacity 400ms ease,
    background-color 1200ms ease,
    color 600ms ease;
}

/* Put fade-out first; loaded will override it */
body.fade-out {
  opacity: 0;
}

body.loaded {
  opacity: 1 !important;               /* loaded always wins if both are present */
}

/* === CONTAINER === */

.center-container {
  position: relative;
  width: min(500px, 92vw);
  height: auto;
  display: grid;
  place-items: center;
  perspective: 1200px;
}

/* === LOGO === */

.login-mark {
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--muted);
  display: grid;
  justify-items: center;
  gap: clamp(1.35rem, 4vh, 2.2rem);
  opacity: 1;
  transition: color 220ms ease;
  cursor: pointer;
  position: relative;
  z-index: 1;
  outline: none;
}

.login-mark.visible {
  opacity: 1;
}

.login-mark.faded {
  opacity: 0.18;
  pointer-events: none;
}

.login-mark.visible:not(.faded):hover,
.login-mark.visible:not(.faded):focus-visible {
  color: var(--ink);
}

.mark-orbit {
  width: clamp(6.5rem, 15vw, 10rem);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  filter: drop-shadow(0 0 2rem rgba(255, 255, 255, 0.12));
  opacity: 0;
  transition: opacity 1.8s ease;
}

.login-mark.visible .mark-orbit {
  opacity: 1;
}

.mark-rotor {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  transform-style: preserve-3d;
  animation: bellevueSpin 20s linear infinite;
}

.mark-face,
.mark-depth {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  backface-visibility: visible;
}

.mark-face {
  transform: translateZ(1.1rem);
  transition: filter 220ms ease;
}

.mark-depth {
  display: block;
  background: center / contain no-repeat url("/BellevueB.png");
  opacity: 0.26;
  filter: brightness(0) invert(1);
}

.depth-one {
  transform: translateZ(0.35rem);
}

.depth-two {
  transform: translateZ(-0.35rem);
  opacity: 0.12;
}

.brand-wordmark {
  display: block;
  width: clamp(13rem, 31vw, 22rem);
  aspect-ratio: 1918 / 187;
  opacity: 0;
  background-color: var(--wordmark-color);
  -webkit-mask: center / contain no-repeat url("/BellevueWordmark.png");
  mask: center / contain no-repeat url("/BellevueWordmark.png");
  transition:
    background-color 220ms ease,
    opacity 1.45s ease;
}

.login-mark.visible .brand-wordmark {
  opacity: 1;
}

.login-mark:not(.intro-complete).visible .brand-wordmark {
  transition-delay: 1.55s;
}

.login-mark.visible:not(.faded):hover .mark-face,
.login-mark.visible:not(.faded):focus-visible .mark-face {
  filter: var(--logo-hover-filter);
  opacity: 1;
  transition-delay: 0s;
}

.login-mark.visible:not(.faded):hover .brand-wordmark,
.login-mark.visible:not(.faded):focus-visible .brand-wordmark {
  background-color: var(--wordmark-hover-color);
  opacity: 1;
  transition-delay: 0s;
}

@keyframes bellevueSpin {
  0% {
    transform: rotateY(0deg) rotateX(2deg);
  }

  100% {
    transform: rotateY(360deg) rotateX(2deg);
  }
}

/* Mobile: shrink and cap the logo size */
@media (max-width: 600px) {
  .mark-orbit {
    width: clamp(5.75rem, 34vw, 8.75rem);
  }

  .brand-wordmark {
    width: min(76vw, 17rem);
  }
}

/* Extra small phones */
@media (max-width: 360px) {
  .mark-orbit {
    width: 5.75rem;
  }

  .brand-wordmark {
    width: 14rem;
  }
}

/* === LOGIN (username + password) === */

#password-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  visibility: hidden;
  transition: opacity 1.5s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
  width: min(340px, 90vw);             /* fit both fields nicely */
}

#password-container.show {
  opacity: 1;
  visibility: visible;
}

#password-container input {
  width: 100%;
  padding: 10px;
  font-size: 16px;
  border: 1px solid transparent;
  border-bottom-color: var(--input-border);
  background-color: transparent;
  color: var(--login-input-color);
  outline: none;
  box-sizing: border-box;
  text-align: center;
  font-weight: 500;
}

/* Space between Username and Password fields */
#password-container input + input {
  margin-top: 10px;
}

/* Small UX touch for placeholders */
#password-container input::placeholder {
  color: color-mix(in srgb, var(--login-input-color) 65%, transparent);
}

/* Remove focus ring/box */
#password-container input:focus,
#password-container input:focus-visible {
  outline: none;
  outline-offset: 0;
  box-shadow: none;
}

.error-message {
  color: var(--login-input-color);
  font-size: 14px;
  margin-top: 16px;
  text-align: center;
  min-height: 1.2em;                   /* reserves space to avoid layout shift */
}