.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(800px 600px at 20% 0%, rgba(214,34,41,.18), transparent 60%),
    linear-gradient(135deg, #122047 0%, #1B2D5C 50%, #243B7A 100%);
  padding: 20px;
}
.auth-card {
  background: #fff;
  border-radius: 14px;
  padding: 32px 28px;
  width: min(420px, 100%);
  box-shadow: 0 18px 48px rgba(0,0,0,.30);
  text-align: center;
  border-top: 4px solid #D62229;
}
.auth-logo { height: 48px; }
.auth-logo-lg { height: 150px; max-width: 100%; display: block; margin: 0 auto; }
.auth-card h1 { font-size: 22px; margin: 14px 0 4px; color: #1B2D5C; }
.auth-sub { font-size: 13px; color: #5a6680; margin-bottom: 20px; }
.auth-card .form-row { text-align: left; }

.dev-credit {
  margin-top: 22px;
  font-size: 10px;
  color: #8a93a8;
  letter-spacing: .04em;
  text-align: center;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.dev-credit img { height: 24px; opacity: .85; }
.dev-credit strong { color: #1B2D5C; font-weight: 600; }
.dev-credit-text { display: inline-block; }

/* ===== Landing pre-login ===== */
.landing-card {
  background: #fff;
  border-radius: 18px;
  padding: 44px 36px 28px;
  width: min(520px, 100%);
  box-shadow: 0 22px 64px rgba(0,0,0,.36);
  text-align: center;
  border-top: 4px solid #D62229;
  position: relative;
  overflow: hidden;
}
.landing-card::after {
  content: "";
  position: absolute;
  inset: -1px -1px auto -1px;
  height: 3px;
  background: linear-gradient(90deg, transparent, rgba(214,34,41,.6), transparent);
  pointer-events: none;
}
.landing-logo {
  height: 180px;
  margin-bottom: 8px;
}
.landing-tagline {
  font-size: 22px;
  font-weight: 700;
  color: #1B2D5C;
  margin: 4px 0 6px;
  letter-spacing: -0.01em;
}
.landing-sub {
  font-size: 14px;
  line-height: 1.55;
  color: #5a6680;
  margin: 0 auto 22px;
  max-width: 380px;
}
.landing-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 26px;
}
.landing-pill {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .03em;
  padding: 6px 12px;
  border-radius: 999px;
  background: #f3f5fb;
  color: #1B2D5C;
  border: 1px solid #e2e7f2;
}
.landing-cta {
  width: 100%;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 10px;
  background: linear-gradient(135deg, #1B2D5C, #243B7A);
  color: #fff;
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(27,45,92,.35);
  transition: transform .12s ease, box-shadow .2s ease, filter .15s ease;
  letter-spacing: .01em;
}
.landing-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(27,45,92,.45);
  filter: brightness(1.05);
}
.landing-cta:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(27,45,92,.30);
}
.landing-card .dev-credit { margin-top: 28px; }

@media (max-width: 480px) {
  .landing-card { padding: 32px 22px 22px; border-radius: 14px; }
  .landing-logo { height: 140px; }
  .landing-tagline { font-size: 19px; }
  .landing-sub { font-size: 13px; }
}