/* Admin sign-in — standalone page styles. Do not reuse legacy login.css. */
html, body {
  height: 100%;
  margin: 0;
}
body.admin-signin {
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: #1c2430;
  background: #0d1524;
}
.signin-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(320px, 1.05fr) minmax(360px, 1fr);
}
.signin-brand {
  position: relative;
  overflow: hidden;
  color: #f3eee6;
  padding: 56px 64px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    radial-gradient(900px 480px at 12% 18%, rgba(212, 175, 106, 0.16), transparent 55%),
    radial-gradient(700px 420px at 88% 88%, rgba(74, 124, 196, 0.18), transparent 50%),
    linear-gradient(165deg, #152238 0%, #0d1524 52%, #0a101c 100%);
}
.signin-brand::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(243, 238, 230, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 238, 230, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 30% 20%, #000 20%, transparent 75%);
  pointer-events: none;
}
.signin-brand-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.28;
  pointer-events: none;
}
.signin-brand-inner {
  position: relative;
  z-index: 1;
  max-width: 460px;
}
.signin-mark {
  width: 52px;
  height: 52px;
  border: 1px solid rgba(212, 175, 106, 0.55);
  display: grid;
  place-items: center;
  color: #d4af6a;
  font-size: 20px;
  letter-spacing: 0.08em;
  margin-bottom: 36px;
  background: rgba(13, 21, 36, 0.35);
}
.signin-kicker {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: #d4af6a;
}
.signin-title {
  margin: 0 0 16px;
  font-size: 40px;
  line-height: 1.2;
  font-weight: 620;
  letter-spacing: 0.04em;
}
.signin-lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(243, 238, 230, 0.72);
  max-width: 34em;
}
.signin-brand-foot {
  position: relative;
  z-index: 1;
  font-size: 12px;
  color: rgba(243, 238, 230, 0.45);
  letter-spacing: 0.04em;
}
.signin-panel {
  background: #f4f1eb;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 32px;
}
.signin-card {
  width: 100%;
  max-width: 392px;
}
.signin-card h1 {
  margin: 0 0 8px;
  font-size: 26px;
  font-weight: 650;
  color: #152238;
}
.signin-card p.signin-sub {
  margin: 0 0 32px;
  color: #667085;
  font-size: 14px;
}
.signin-field {
  margin-bottom: 18px;
}
.signin-field label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  color: #3d4a5c;
}
.signin-field input[type="text"],
.signin-field input[type="password"] {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  border: 1px solid #d9d3c9;
  background: #fff;
  color: #152238;
  font-size: 15px;
  box-sizing: border-box;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.signin-field input:focus {
  border-color: #c4a574;
  box-shadow: 0 0 0 3px rgba(196, 165, 116, 0.18);
}
.signin-captcha {
  display: grid;
  grid-template-columns: 1fr 118px;
  gap: 10px;
  align-items: end;
}
.signin-captcha img {
  height: 46px;
  width: 118px;
  object-fit: cover;
  cursor: pointer;
  border: 1px solid #d9d3c9;
  background: #fff;
  box-sizing: border-box;
}
.signin-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 8px 0 28px;
  font-size: 13px;
  color: #5b6675;
}
.signin-row label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}
.signin-row a {
  color: #8a6d3b;
  text-decoration: none;
}
.signin-row a:hover {
  text-decoration: underline;
}
.signin-submit {
  width: 100%;
  height: 48px;
  border: 0;
  cursor: pointer;
  background: #152238;
  color: #f3eee6;
  font-size: 15px;
  letter-spacing: 0.18em;
  transition: background .15s, transform .15s;
}
.signin-submit:hover {
  background: #1e3160;
}
.signin-submit:active {
  transform: translateY(1px);
}
.signin-legal {
  margin-top: 28px;
  font-size: 12px;
  color: #8b93a0;
  line-height: 1.6;
}
.signin-legal a {
  color: inherit;
}
.signin-sms {
  display: grid;
  grid-template-columns: 1fr 118px;
  gap: 10px;
  align-items: end;
}
.signin-sms-btn {
  height: 46px;
  border: 1px solid #d9d3c9;
  background: #fff;
  color: #152238;
  cursor: pointer;
  font-size: 13px;
}
.signin-sms-btn:disabled {
  color: #8b93a0;
  cursor: default;
}
.signin-agree {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: #5b6675;
  margin: 4px 0 20px;
  line-height: 1.5;
}
.signin-agree a {
  color: #8a6d3b;
}
@media (max-width: 900px) {
  .signin-shell {
    grid-template-columns: 1fr;
  }
  .signin-brand {
    min-height: 220px;
    padding: 32px 24px;
  }
  .signin-title {
    font-size: 28px;
  }
  .signin-brand-foot {
    display: none;
  }
  .signin-panel {
    padding: 32px 20px 48px;
  }
}