/* ISD Solutions — enterprise auth / login */
.isd-login {
  --login-ink: #0f172a;
  --login-ink-soft: #334155;
  --login-muted: #64748b;
  --login-line: #e2e8f0;
  --login-surface: #ffffff;
  --login-brand: #dc2626;
  --login-brand-deep: #991b1b;
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  font-family: var(--isd-font-sans, Inter, system-ui, sans-serif);
  background: #0b1220;
}

.isd-login__brand {
  position: relative;
  overflow: hidden;
  color: #f8fafc;
  padding: clamp(2rem, 5vw, 4.5rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, rgba(220, 38, 38, 0.28), transparent 55%),
    radial-gradient(ellipse 70% 50% at 85% 80%, rgba(148, 163, 184, 0.12), transparent 50%),
    linear-gradient(160deg, #0b1220 0%, #111827 45%, #1e293b 100%);
}

.isd-login__brand::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(248, 250, 252, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(248, 250, 252, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 85%);
  pointer-events: none;
}

.isd-login__brand::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -120px;
  bottom: -140px;
  border-radius: 50%;
  border: 1px solid rgba(248, 250, 252, 0.08);
  box-shadow: inset 0 0 0 40px rgba(220, 38, 38, 0.05);
  pointer-events: none;
}

.isd-login__brand-top,
.isd-login__brand-main,
.isd-login__brand-foot {
  position: relative;
  z-index: 1;
}

.isd-login__logo {
  display: inline-block;
  max-width: min(280px, 70vw);
}

.isd-login__logo img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 56px;
  object-fit: contain;
  object-position: left center;
}

.isd-login__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.25rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(248, 250, 252, 0.14);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.35);
  color: #cbd5e1;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.isd-login__eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--login-brand);
  box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.2);
}

.isd-login__headline {
  margin: 0 0 0.85rem;
  max-width: 14ch;
  font-size: clamp(2.1rem, 4.2vw, 3.35rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: #fff;
}

.isd-login__lede {
  margin: 0;
  max-width: 34ch;
  color: #94a3b8;
  font-size: 1.02rem;
  line-height: 1.55;
}

.isd-login__points {
  display: grid;
  gap: 0.85rem;
  margin: 2.25rem 0 0;
  padding: 0;
  list-style: none;
}

.isd-login__points li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: #cbd5e1;
  font-size: 0.92rem;
  line-height: 1.45;
}

.isd-login__points i {
  margin-top: 0.15rem;
  color: #fca5a5;
  font-size: 1.05rem;
}

.isd-login__brand-foot {
  margin-top: 2.5rem;
  color: #64748b;
  font-size: 0.8rem;
}

.isd-login__brand-foot a {
  color: #f1f5f9;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.isd-login__brand-foot a:hover,
.isd-login__brand-foot a:focus {
  color: #fecaca;
  border-bottom-color: #fecaca;
}

.isd-login__panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.5rem, 4vw, 3rem);
  background:
    linear-gradient(180deg, #f8fafc 0%, #ffffff 40%, #f1f5f9 100%);
}

.isd-login__panel-inner {
  width: 100%;
  max-width: 420px;
  animation: isd-login-rise 0.55s ease-out both;
}

.isd-login__panel-brand {
  display: none;
  margin-bottom: 1.5rem;
}

.isd-login__panel-brand img {
  max-height: 42px;
  width: auto;
}

.isd-login__panel-title {
  margin: 0 0 0.4rem;
  color: var(--login-ink);
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.isd-login__panel-sub {
  margin: 0 0 1.75rem;
  color: var(--login-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.isd-login__form .form-label {
  margin-bottom: 0.4rem;
  color: var(--login-ink-soft);
  font-size: 0.82rem;
  font-weight: 600;
}

.isd-login__form .form-control {
  min-height: 48px;
  padding: 0.7rem 0.95rem;
  border: 1px solid var(--login-line);
  border-radius: 0.65rem;
  background: #fff;
  color: var(--login-ink);
  box-shadow: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.isd-login__form .form-control:focus {
  border-color: rgba(220, 38, 38, 0.55);
  box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.12);
}

.isd-login__form .form-control::placeholder {
  color: #94a3b8;
}

.isd-login__form .input-group .form-control {
  border-right: 0;
}

.isd-login__form .input-group-text {
  border: 1px solid var(--login-line);
  border-left: 0;
  border-radius: 0 0.65rem 0.65rem 0;
  background: #fff;
  padding-inline: 0.9rem;
}

.isd-login__form .input-group:focus-within .form-control,
.isd-login__form .input-group:focus-within .input-group-text {
  border-color: rgba(220, 38, 38, 0.55);
}

.isd-login__form .input-group:focus-within {
  box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.12);
  border-radius: 0.65rem;
}

.isd-login__form .input-group:focus-within .form-control,
.isd-login__form .input-group:focus-within .input-group-text {
  box-shadow: none;
}

.isd-login__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.35rem;
}

.isd-login__meta .form-check-label {
  color: var(--login-ink-soft);
  font-size: 0.875rem;
}

.isd-login__submit {
  min-height: 48px;
  border: 0;
  border-radius: 0.65rem;
  background: linear-gradient(180deg, #ef4444 0%, #dc2626 55%, #b91c1c 100%);
  box-shadow: 0 10px 24px rgba(220, 38, 38, 0.28);
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.isd-login__submit:hover,
.isd-login__submit:focus {
  filter: brightness(1.03);
  box-shadow: 0 12px 28px rgba(185, 28, 28, 0.34);
  transform: translateY(-1px);
}

.isd-login__submit:active {
  transform: translateY(0);
}

.isd-login__alert {
  border: 0;
  border-left: 3px solid #dc2626;
  border-radius: 0.65rem;
  background: #fef2f2;
  color: #991b1b;
}

.isd-login__secure {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 1.5rem;
  color: var(--login-muted);
  font-size: 0.78rem;
}

.isd-login__secure i {
  color: #94a3b8;
}

@keyframes isd-login-rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 991.98px) {
  .isd-login {
    grid-template-columns: 1fr;
  }

  .isd-login__brand {
    min-height: auto;
    padding: 1.5rem 1.35rem 1.75rem;
  }

  .isd-login__headline {
    max-width: none;
    font-size: 1.85rem;
  }

  .isd-login__lede {
    max-width: none;
    font-size: 0.95rem;
  }

  .isd-login__points {
    display: none;
  }

  .isd-login__brand-foot {
    display: none;
  }

  .isd-login__panel {
    padding: 1.75rem 1.25rem 2.5rem;
    align-items: flex-start;
  }

  .isd-login__panel-brand {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .isd-login__panel-inner,
  .isd-login__submit {
    animation: none;
    transition: none;
  }
}