:root {
  --auth-blue: #1d4ed8;
  --auth-blue-dark: #1e3a8a;
  --auth-green: #16a34a;
  --auth-border: #dbe5f1;
  --auth-text: #0f172a;
  --auth-muted: #64748b;
}

* {
  box-sizing: border-box;
}

body.admin-login-page {
  min-height: 100vh;
  margin: 0;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--auth-text);
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.92), rgba(15, 23, 42, 0.88)),
    url("https://images.unsplash.com/photo-1581092160562-40aa08e78837?auto=format&fit=crop&w=1800&q=80") center/cover;
}

.admin-login-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(360px, 480px) 1fr;
}

.admin-login-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: rgba(248, 250, 252, 0.96);
  box-shadow: 20px 0 70px rgba(15, 23, 42, 0.22);
}

.admin-login-card {
  width: min(100%, 410px);
}

.admin-login-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
}

.admin-login-logo {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  flex: 0 0 52px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 14px 30px rgba(180, 22, 22, 0.2);
}

.admin-login-logo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.admin-login-brand strong {
  display: block;
  font-size: 21px;
  line-height: 1.35;
  letter-spacing: 0.01em;
}

.admin-login-brand span {
  display: block;
  margin-top: 5px;
  font-size: 14px;
  font-weight: 600;
  color: var(--auth-muted);
}

.admin-login-title {
  margin: 0 0 8px;
  font-size: 30px;
  line-height: 1.2;
}

.admin-login-subtitle {
  margin: 0 0 28px;
  color: var(--auth-muted);
  line-height: 1.7;
}

.admin-login-form {
  display: grid;
  gap: 18px;
}

.admin-login-field label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 700;
}

.admin-login-input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 14px;
  border: 1px solid var(--auth-border);
  border-radius: 8px;
  background: #fff;
}

.admin-login-input-wrap i {
  color: #94a3b8;
}

.admin-login-input-wrap input {
  width: 100%;
  border: 0;
  outline: 0;
  font: inherit;
  color: var(--auth-text);
}

.admin-login-input-wrap:focus-within {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.16);
}

.admin-login-submit {
  height: 50px;
  border: 0;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  background: linear-gradient(135deg, var(--auth-blue), #2563eb);
  cursor: pointer;
  box-shadow: 0 18px 32px rgba(37, 99, 235, 0.24);
}

.admin-login-submit:disabled {
  cursor: not-allowed;
  opacity: 0.72;
}

.admin-login-message {
  display: none;
  min-height: 38px;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
}

.admin-login-message.show {
  display: block;
}

.admin-login-message.error {
  color: #b91c1c;
  background: #fee2e2;
}

.admin-login-message.success {
  color: #047857;
  background: #dcfce7;
}

.admin-login-side {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 44px;
  color: #fff;
}

.admin-login-status {
  align-self: flex-end;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(12px);
  font-weight: 800;
}

.admin-login-status span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--auth-green);
}

.admin-login-copy {
  max-width: 620px;
}

.admin-login-copy h1 {
  margin: 0 0 18px;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: 0;
}

.admin-login-copy p {
  max-width: 520px;
  margin: 0;
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.84);
}

.admin-login-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 650px;
}

.admin-login-metric {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.24);
  backdrop-filter: blur(10px);
}

.admin-login-metric strong {
  display: block;
  font-size: 22px;
  margin-bottom: 4px;
}

.admin-login-metric span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.76);
}

@media (max-width: 900px) {
  .admin-login-shell {
    grid-template-columns: 1fr;
  }

  .admin-login-side {
    min-height: 360px;
    padding: 28px;
    order: -1;
  }

  .admin-login-panel {
    padding: 28px;
  }

  .admin-login-metrics {
    grid-template-columns: 1fr;
  }
}