.pantau-auth-shell {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: 100vh; min-height: 100dvh;
  display: flex; align-items: center; justify-content: flex-start;
  padding: clamp(24px, 6vw, 96px);
  background-color: #091d30;
  background-image:
    linear-gradient(90deg, rgba(9, 29, 48, .28) 0%, rgba(9, 29, 48, .08) 52%, rgba(9, 29, 48, .18) 100%),
    url("../img/login-background.d451488c55c2.webp");
  background-position: center;
  background-size: cover;
}
.pantau-auth-shell::before {
  content: ""; position: absolute; z-index: -1; inset: 0;
  background:
    radial-gradient(circle at 22% 50%, rgba(11, 141, 141, .12), transparent 34%),
    linear-gradient(180deg, rgba(5, 20, 34, .10), rgba(5, 20, 34, .34));
  pointer-events: none;
}
.pantau-auth-ambient {
  position: absolute; z-index: 0; inset: 0;
  overflow: hidden; pointer-events: none;
}
.pantau-cursor-glow {
  position: absolute; left: 0; top: 0;
  width: 360px; height: 360px; border-radius: 50%;
  opacity: 0; mix-blend-mode: screen;
  background: radial-gradient(circle,
    rgba(49,214,189,.20) 0%,
    rgba(11,141,141,.11) 28%,
    rgba(11,141,141,.035) 52%,
    transparent 72%);
  filter: blur(3px);
  transform: translate3d(-50%, -50%, 0);
  will-change: transform, opacity;
  transition: opacity 300ms cubic-bezier(.2,.8,.2,1);
}
.pantau-auth-shell.is-cursor-active .pantau-cursor-glow { opacity: 1; }
.pantau-spark {
  position: absolute; left: 0; top: 0;
  width: var(--spark-size, 3px); height: var(--spark-size, 3px);
  border-radius: 50%; opacity: 0;
  background: var(--spark-color, #31d6bd);
  box-shadow:
    0 0 5px var(--spark-color, #31d6bd),
    0 0 12px rgba(49,214,189,.55);
  transform: translate3d(-50%, -50%, 0);
  will-change: transform, opacity;
}
.pantau-auth-card {
  position: relative; z-index: 1;
  width: 100%; max-width: 376px;
  padding: 36px 32px; border: 1px solid rgba(255,255,255,.72); border-radius: 12px;
  background: rgba(255,255,255,.96);
  box-shadow: 0 24px 72px rgba(2,18,31,.42), 0 1px 0 rgba(255,255,255,.7) inset;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.pantau-auth-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
.pantau-auth-brand .pantau-brand-name { color: var(--navy); }
.pantau-auth-title { font: 700 20px Archivo, sans-serif; color: var(--navy); margin: 0 0 4px; }
.pantau-auth-subtitle { font: 400 12.5px 'IBM Plex Sans', sans-serif; color: var(--text-muted); margin: 0 0 20px; }
.pantau-auth-field { margin-bottom: 14px; }
.pantau-auth-field label {
  display: block; font: 600 11px 'IBM Plex Sans', sans-serif; color: var(--navy-2);
  letter-spacing: .04em; text-transform: uppercase; margin-bottom: 6px;
}
.pantau-auth-field input {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  font: 400 13.5px 'IBM Plex Sans', sans-serif; color: var(--navy-2);
}
.pantau-auth-field input:focus { outline: 2px solid var(--teal-light); border-color: var(--teal); }
.pantau-auth-errors {
  padding: 8px 12px; border-radius: 8px; background: #FBEDEC; color: var(--negative);
  font: 400 12px 'IBM Plex Sans', sans-serif; margin-bottom: 14px;
}
.pantau-auth-submit {
  width: 100%; padding: 10px 14px; border: none; border-radius: 8px; background: var(--teal);
  font: 600 12.5px 'IBM Plex Sans', sans-serif; color: #fff; cursor: pointer;
}
.pantau-auth-submit:hover { background: #0A5C64; }

@media (max-width: 640px) {
  .pantau-auth-shell {
    justify-content: center; padding: 20px;
    background-position: 66% center;
  }
  .pantau-auth-shell::before {
    background: linear-gradient(180deg, rgba(5,20,34,.38), rgba(5,20,34,.56));
  }
  .pantau-auth-card { max-width: 360px; padding: 30px 24px; }
}

@media (prefers-reduced-transparency: reduce) {
  .pantau-auth-card {
    background: #fff;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

@media (hover: none), (pointer: coarse), (prefers-reduced-motion: reduce) {
  .pantau-auth-ambient { display: none; }
}