.auth-body {
  background: #f5f7fb;
  color: #172033;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(420px, 0.95fr) minmax(460px, 1.05fr);
}

.auth-intro {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 44px clamp(38px, 5vw, 78px);
  color: #fff;
  background:
    radial-gradient(circle at 82% 14%, rgba(78, 183, 255, .24), transparent 30%),
    radial-gradient(circle at 12% 90%, rgba(40, 211, 166, .18), transparent 34%),
    linear-gradient(145deg, #101f69 0%, #1746c7 48%, #087fbd 100%);
}

.auth-intro::after {
  content: '';
  position: absolute;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 42%;
  right: -170px;
  bottom: -140px;
  transform: rotate(25deg);
}

.auth-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
  color: #fff;
  font-size: 1.18rem;
  font-weight: 750;
  letter-spacing: -.02em;
}

.auth-brand:hover { text-decoration: none; }

.auth-brand-mark,
.auth-mobile-mark {
  position:relative;
  overflow:hidden;
  display: block;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(0,0,0,.16);
}
.auth-brand-mark img,
.auth-mobile-mark img { position:absolute; top:50%; left:50%; width:70px; max-width:none; transform:translate(-50%,-50%); }

.auth-copy {
  position: relative;
  z-index: 1;
  max-width: 590px;
  margin: auto 0;
  padding: 70px 0;
}

.auth-kicker {
  display: inline-block;
  margin-bottom: 18px;
  color: #c9e6ff;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .14em;
}

.auth-copy h1 {
  max-width: 570px;
  font-size: clamp(2.35rem, 4vw, 4.25rem);
  line-height: 1.04;
  letter-spacing: -.055em;
}

.auth-copy p {
  max-width: 570px;
  margin-top: 24px;
  color: rgba(255,255,255,.78);
  font-size: 1.02rem;
  line-height: 1.75;
}

.auth-points {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,.17);
}

.auth-points > div { display: flex; gap: 11px; }
.auth-points span { color: #91d3ff; font-size: .72rem; font-weight: 700; }
.auth-points p { color: rgba(255,255,255,.68); font-size: .73rem; line-height: 1.55; }
.auth-points strong { display: block; margin-bottom: 2px; color: #fff; font-size: .79rem; }

.auth-panel {
  display: grid;
  place-items: center;
  padding: 36px;
  background: #f8fafc;
}

.auth-card { width: min(100%, 440px); }
.auth-back { display: inline-block; margin-bottom: 44px; color: #6c7890; font-size: .82rem; font-weight: 600; }
.auth-heading { margin-bottom: 26px; }
.auth-heading h2 { margin-bottom: 8px; color: #142039; font-size: 2rem; letter-spacing: -.04em; }
.auth-heading p { color: #78849a; }
.auth-mobile-mark { display: none; margin-bottom: 20px; background:#fff; }

.auth-card .login-tabs {
  margin-bottom: 26px;
  padding: 4px;
  border: 1px solid #e1e7f0;
  border-radius: 12px;
  background: #edf1f7;
}

.auth-card .login-tabs button { color: #69758a; border-radius: 8px; }
.auth-card .login-tabs button.active { color: #13213b; background: #fff; box-shadow: 0 3px 12px rgba(31,52,86,.08); }
.auth-card .form-group label { color: #3b465a; }
.auth-card .form-group input {
  min-height: 48px;
  color: #172033;
  border: 1px solid #dce3ed;
  border-radius: 10px;
  background: #fff;
}
.auth-card .form-group input::placeholder { color: #9ca7b8; }
.auth-card .form-group input:focus { border-color: #2184da; box-shadow: 0 0 0 4px rgba(33,132,218,.11); }
.auth-submit { min-height: 50px; justify-content: space-between; margin-top: 8px; border-radius: 10px; background: #1746c7; }
.auth-submit span { font-size: 1.2rem; }
.auth-help { margin-top: 24px; color: #7b8799; font-size: .8rem; text-align: center; }
.auth-help a { color: #1746c7; font-weight: 650; }

@media (max-width: 980px) {
  .auth-shell { grid-template-columns: 1fr; }
  .auth-intro { display: none; }
  .auth-panel { min-height: 100vh; padding: 26px 20px; }
  .auth-card { max-width: 480px; }
  .auth-mobile-mark { display: block; }
  .auth-back { margin-bottom: 28px; }
}