/* Login-only animated background. Kept separate from the shared Tailwind output. */
.login-stage {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.login-language-picker {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 2;
}

.language-select {
  appearance: none;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: .55rem 2rem .55rem .85rem;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 1rem) 50%, calc(100% - .72rem) 50%;
  background-repeat: no-repeat;
  background-size: .28rem .28rem, .28rem .28rem;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .02em;
  outline: none;
  transition: border-color .2s ease, background-color .2s ease, box-shadow .2s ease;
}

.login-language-picker .language-select {
  color: rgba(226, 241, 255, .92);
  border-color: rgba(148, 198, 255, .26);
  background-color: rgba(5, 16, 42, .46);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .16), inset 0 0 18px rgba(0, 205, 255, .06);
}

.login-language-picker .language-select:hover,
.login-language-picker .language-select:focus-visible {
  border-color: rgba(0, 217, 255, .7);
  background-color: rgba(11, 31, 72, .72);
  box-shadow: 0 0 0 3px rgba(0, 217, 255, .12), 0 8px 24px rgba(0, 0, 0, .16);
}

.language-select-light {
  color: #475569;
  border-color: #e2e8f0;
  background-color: rgba(255, 255, 255, .72);
}

.language-select-light:hover,
.language-select-light:focus-visible {
  border-color: #818cf8;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, .12);
}

.login-scene {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 45%, rgba(31, 48, 112, .72), transparent 42%),
    radial-gradient(circle at 15% 85%, rgba(0, 207, 255, .18), transparent 35%),
    linear-gradient(135deg, #030817 0%, #071331 48%, #10082b 100%);
  opacity: 0;
  transition: opacity .25s ease;
}

.login-stage:has(#login-view:not([hidden])) .login-scene {
  opacity: 1;
}

/* Internal pages keep the same visual language with a calm, static backdrop. */
.login-stage:has(#login-view[hidden]) .login-scene {
  opacity: 1;
  background:
    radial-gradient(circle at 18% 18%, rgba(45, 75, 155, .34), transparent 36%),
    radial-gradient(circle at 86% 82%, rgba(83, 49, 152, .28), transparent 38%),
    linear-gradient(135deg, #07112a 0%, #101d43 52%, #17102f 100%);
}

.login-stage:has(#login-view[hidden]) .login-scene::before {
  opacity: .3;
  animation: none;
  transform: rotate(-8deg);
}

.login-stage:has(#login-view[hidden]) .login-scene::after {
  opacity: .18;
  animation: none;
  transform: none;
}

.login-stage:has(#login-view[hidden]) .login-light {
  opacity: .24;
  animation: none;
}

.login-scene::before,
.login-scene::after {
  position: absolute;
  inset: -30%;
  content: "";
}

.login-scene::before {
  background:
    linear-gradient(115deg, transparent 0 38%, rgba(0, 218, 255, .7) 38.15%, transparent 38.35% 100%),
    linear-gradient(115deg, transparent 0 62%, rgba(121, 74, 255, .62) 62.15%, transparent 62.35% 100%),
    repeating-linear-gradient(90deg, transparent 0 11rem, rgba(65, 134, 255, .11) 11.05rem 11.12rem, transparent 11.18rem 22rem);
  filter: blur(1px);
  transform: translate3d(-8%, -4%, 0) rotate(-8deg);
  animation: login-light-drift 15s ease-in-out infinite alternate;
}

.login-scene::after {
  background:
    linear-gradient(180deg, transparent 0 18%, rgba(0, 218, 255, .18) 18.1%, transparent 18.35% 100%),
    linear-gradient(180deg, transparent 0 76%, rgba(130, 76, 255, .16) 76.1%, transparent 76.35% 100%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, .025) 0 1px, transparent 1px 5px);
  mix-blend-mode: screen;
  animation: login-scan 9s linear infinite;
}

.login-light {
  position: absolute;
  width: 42vw;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, #00d9ff 35%, #fff 50%, #785bff 70%, transparent);
  box-shadow: 0 0 10px #00d9ff, 0 0 28px rgba(0, 217, 255, .8), 0 0 60px rgba(120, 91, 255, .55);
  opacity: .75;
  transform: rotate(-28deg);
}

.login-light-one { top: 20%; left: -10%; animation: login-light-one 11s ease-in-out infinite alternate; }
.login-light-two { top: 67%; right: -12%; animation: login-light-two 14s ease-in-out infinite alternate; }
.login-light-three { top: 42%; left: 32%; width: 30vw; opacity: .45; transform: rotate(36deg); animation: login-light-three 12s ease-in-out infinite alternate; }

@keyframes login-light-drift {
  from { transform: translate3d(-8%, -4%, 0) rotate(-8deg) scale(1); }
  to { transform: translate3d(5%, 5%, 0) rotate(-3deg) scale(1.08); }
}

@keyframes login-scan {
  from { transform: translateY(-8%); }
  to { transform: translateY(8%); }
}

@keyframes login-light-one {
  from { transform: translate3d(-8vw, -4vh, 0) rotate(-28deg); }
  to { transform: translate3d(28vw, 18vh, 0) rotate(-28deg); }
}

@keyframes login-light-two {
  from { transform: translate3d(8vw, 12vh, 0) rotate(-28deg); }
  to { transform: translate3d(-35vw, -18vh, 0) rotate(-28deg); }
}

@keyframes login-light-three {
  from { transform: translate3d(-18vw, 12vh, 0) rotate(36deg); }
  to { transform: translate3d(24vw, -16vh, 0) rotate(36deg); }
}

@media (prefers-reduced-motion: reduce) {
  .login-scene::before,
  .login-scene::after,
  .login-light { animation: none; }
}

@media (max-width: 30rem) {
  .login-language-picker {
    top: 1rem;
    right: 1rem;
  }
}