.auth-body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background:
    radial-gradient(ellipse 70% 45% at 20% -10%, rgba(30, 159, 232, 0.22), transparent 55%),
    radial-gradient(ellipse 50% 40% at 90% 10%, rgba(245, 197, 24, 0.1), transparent 50%),
    #0b1220;
  color: #f2f6fb;
  font-family: "Segoe UI", system-ui, sans-serif;
}

.auth-shell {
  width: min(440px, 100%);
}

.auth-card {
  background: rgba(18, 26, 43, 0.95);
  border: 1px solid rgba(62, 120, 180, 0.28);
  border-radius: 20px;
  padding: 1.75rem 1.6rem 1.4rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.4rem;
}

.auth-brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
}

.auth-title {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.auth-sub {
  color: #93a4bd;
  font-size: 0.9rem;
  margin-top: 0.15rem;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}

.auth-field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: #93a4bd;
  margin-bottom: 0.35rem;
}

.auth-input {
  width: 100%;
  box-sizing: border-box;
  background: #182236;
  border: 1px solid rgba(62, 120, 180, 0.28);
  border-radius: 12px;
  color: #f2f6fb;
  padding: 0.8rem 0.95rem;
  font-size: 0.95rem;
}

.auth-password-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.auth-password-wrap .auth-input {
  padding-right: 4.25rem;
}
.auth-password-toggle {
  position: absolute;
  right: 0.55rem;
  border: none;
  background: transparent;
  color: #93a4bd;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.35rem 0.45rem;
}
.auth-password-toggle:hover { color: #1e9fe8; }

.password-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.password-wrap .form-control {
  padding-right: 4.25rem;
}
.password-toggle {
  position: absolute;
  right: 0.5rem;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.35rem 0.45rem;
}
.password-toggle:hover { color: var(--pc-blue); }

.auth-input:focus {
  outline: none;
  border-color: #1e9fe8;
  box-shadow: 0 0 0 3px rgba(30, 159, 232, 0.2);
}

.auth-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #93a4bd;
  font-size: 0.88rem;
}

.auth-btn {
  margin-top: 0.25rem;
  border: none;
  border-radius: 12px;
  padding: 0.85rem 1rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
  cursor: pointer;
  background: linear-gradient(135deg, #3bb4f5, #1e9fe8 45%, #0a4a8a);
  box-shadow: 0 10px 28px rgba(30, 159, 232, 0.35);
}

.auth-btn:hover {
  filter: brightness(1.06);
}

.auth-error {
  color: #ffc2c9;
  background: rgba(255, 90, 106, 0.12);
  border: 1px solid rgba(255, 90, 106, 0.35);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  font-size: 0.88rem;
}

.auth-error:empty,
.auth-field-error:empty {
  display: none;
}

.auth-field-error {
  display: block;
  color: #ff8a96;
  font-size: 0.8rem;
  margin-top: 0.3rem;
}

.auth-hint {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(62, 120, 180, 0.22);
}

.auth-hint-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #f5c518;
  margin-bottom: 0.35rem;
}

.auth-hint p {
  margin: 0;
  color: #93a4bd;
  font-size: 0.86rem;
  line-height: 1.45;
}

.auth-footer {
  margin-top: 1.25rem;
  color: #667891;
  font-size: 0.78rem;
  text-align: center;
}