.login-page {
  --login-bg-1: #070f1d;
  --login-bg-2: #122338;
  --login-bg-3: #1b3f55;
  --login-brand-1: #2ed3ff;
  --login-brand-2: #2cbf9e;
  --login-brand-3: #167dff;
  --login-brand-hover-1: #4cdbff;
  --login-brand-hover-2: #2f93ff;
  --login-btn-border: #1b7fda;
  --login-btn-border-hover: #166dc0;
  --login-orb-1: rgba(46, 211, 255, 0.24);
  --login-orb-2: rgba(44, 191, 158, 0.22);
  --login-orb-3: rgba(255, 182, 92, 0.16);
  --login-overlay-1: rgba(255, 255, 255, 0.09);
  --login-overlay-2: rgba(255, 255, 255, 0.08);
  --login-grid: rgba(255, 255, 255, 0.11);
  --login-logo: #f7fbff;
  --login-logo-subtitle: rgba(232, 242, 250, 0.92);
  --login-card-bg: rgba(248, 251, 255, 0.96);
  --login-card-border: rgba(255, 255, 255, 0.3);
  --login-text: #33475c;
  position: relative;
  min-height: 100vh;
  margin: 0;
  padding: 7vh 0 24px;
  overflow: hidden;
  background:
    radial-gradient(1000px 560px at 8% 10%, var(--login-orb-1), transparent 62%),
    radial-gradient(1050px 580px at 88% 2%, var(--login-orb-2), transparent 65%),
    radial-gradient(900px 540px at 50% 118%, var(--login-orb-3), transparent 69%),
    conic-gradient(from 182deg at 50% 112%, rgba(255, 255, 255, 0.06), transparent 40%, rgba(255, 255, 255, 0.02) 66%, transparent 100%),
    linear-gradient(130deg, var(--login-bg-1) 0%, var(--login-bg-2) 52%, var(--login-bg-3) 100%);
}

.login-page.login-theme-nocturne {
  --login-bg-1: #070f1d;
  --login-bg-2: #122338;
  --login-bg-3: #1b3f55;
  --login-brand-1: #2ed3ff;
  --login-brand-2: #2cbf9e;
  --login-brand-3: #167dff;
  --login-brand-hover-1: #4cdbff;
  --login-brand-hover-2: #2f93ff;
  --login-btn-border: #1b7fda;
  --login-btn-border-hover: #166dc0;
  --login-orb-1: rgba(46, 211, 255, 0.24);
  --login-orb-2: rgba(44, 191, 158, 0.22);
  --login-orb-3: rgba(255, 182, 92, 0.16);
}

.login-page.login-theme-graphite {
  --login-bg-1: #12161f;
  --login-bg-2: #1c2a36;
  --login-bg-3: #2c3f4d;
  --login-brand-1: #45d1b8;
  --login-brand-2: #2ca57f;
  --login-brand-3: #2a7fdd;
  --login-brand-hover-1: #5bdcc5;
  --login-brand-hover-2: #3992ee;
  --login-btn-border: #2a81d2;
  --login-btn-border-hover: #206eb4;
  --login-orb-1: rgba(69, 209, 184, 0.23);
  --login-orb-2: rgba(42, 127, 221, 0.2);
  --login-orb-3: rgba(245, 170, 84, 0.14);
}

.login-page.login-theme-atlas {
  --login-bg-1: #0a1732;
  --login-bg-2: #12305a;
  --login-bg-3: #204c67;
  --login-brand-1: #26c7ff;
  --login-brand-2: #31d9c5;
  --login-brand-3: #1e92ff;
  --login-brand-hover-1: #4bd3ff;
  --login-brand-hover-2: #37a2ff;
  --login-btn-border: #1f86de;
  --login-btn-border-hover: #1a72bd;
  --login-orb-1: rgba(38, 199, 255, 0.28);
  --login-orb-2: rgba(49, 217, 197, 0.24);
  --login-orb-3: rgba(255, 211, 92, 0.16);
}

.login-page::before {
  content: "";
  position: fixed;
  inset: -22%;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, var(--login-overlay-1), transparent 38%),
    linear-gradient(292deg, var(--login-overlay-2), transparent 56%);
  opacity: 0.62;
  animation: login-bg-shift 14s ease-in-out infinite;
}

.login-page::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: radial-gradient(var(--login-grid) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.16;
}

@keyframes login-bg-shift {
  0% {
    transform: translate3d(-1.5%, -1.5%, 0) scale(1);
  }
  50% {
    transform: translate3d(1.2%, 1.3%, 0) scale(1.04);
  }
  100% {
    transform: translate3d(-1.5%, -1.5%, 0) scale(1);
  }
}

.login-box {
  position: relative;
  z-index: 1;
  margin: 0 auto;
  animation: login-pop 0.7s ease-out both;
}

@keyframes login-pop {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.login-logo {
  margin-bottom: 20px;
}

.login-logo a {
  color: var(--login-logo);
  letter-spacing: 0.4px;
  text-shadow: 0 10px 34px rgba(4, 15, 35, 0.55);
}

.login-logo-subtitle {
  margin-top: 6px;
  font-size: 14px;
  color: var(--login-logo-subtitle);
}

.login-box-body {
  position: relative;
  border: 1px solid var(--login-card-border);
  border-top: 0;
  border-radius: 12px;
  padding: 22px;
  box-shadow: 0 26px 64px rgba(7, 17, 34, 0.46);
  background: var(--login-card-bg);
  backdrop-filter: blur(2px);
}

.login-box-body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: 12px 12px 0 0;
  background: linear-gradient(90deg, var(--login-brand-1), var(--login-brand-2), var(--login-brand-3));
}

.login-box-msg {
  margin-bottom: 16px;
  color: var(--login-text);
  font-size: 15px;
  line-height: 1.4;
}

.form-control {
  height: 42px;
  border-radius: 8px;
  border-color: #cfd7e2;
}

.form-control:focus {
  border-color: var(--login-brand-1);
  box-shadow: 0 0 0 2px rgba(30, 200, 255, 0.17);
}

.input-group .btn-flat {
  height: 42px;
  border-radius: 0 8px 8px 0;
  border-left: 0;
}

.toggle-password i {
  color: #74859a;
  transition: color 0.15s ease;
}

.toggle-password:hover i,
.toggle-password:focus i {
  color: var(--login-brand-3);
}

.btn-primary {
  border-radius: 8px;
  border-color: var(--login-btn-border);
  background: linear-gradient(135deg, var(--login-brand-1), var(--login-brand-3));
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.2s ease;
}

.btn-primary:hover,
.btn-primary:focus {
  border-color: var(--login-btn-border-hover);
  background: linear-gradient(135deg, var(--login-brand-hover-1), var(--login-brand-hover-2));
  box-shadow: 0 10px 22px rgba(33, 129, 255, 0.34);
  transform: translateY(-1px);
}

.alert {
  margin-bottom: 14px;
  border-radius: 8px;
}

@media (max-width: 480px) {
  .login-page {
    padding-top: 5vh;
  }

  .login-box-body {
    padding: 18px;
  }

  .login-logo-subtitle {
    font-size: 13px;
  }
}