/* ============================================================
   SeaScribe Admin — Login Page
   ============================================================ */

#admin-login, #admin-bind {
  position: fixed; inset: 0;
  display: flex; flex-direction: column;
  background: var(--bg);
}

/* ---- Login Topbar ---- */
.admin-login-topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
}
.admin-login-topbar-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 1.3rem; font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none; color: inherit;
  cursor: pointer;
  user-select: none;
  transition: opacity var(--dur-fast);
}
.admin-login-topbar-brand:hover { opacity: 0.7; }
.admin-login-topbar-spacer { flex: 1; }

/* ---- Login Body (center the card) ---- */
.admin-login-body {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
}

.admin-login-card {
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  border-radius: var(--radius-2xl);
  padding: 40px 36px;
  width: 360px; max-width: 90vw;
  box-shadow: var(--glass-shadow);
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  border: 1px solid var(--glass-border);
  animation: adminFadeIn 0.4s var(--ease) both;
}
.admin-login-logo { font-size: 3rem; }
.admin-login-card h1 { font-size: 1.4rem; font-weight: 700; }
.admin-login-sub { color: var(--muted); font-size: 0.85rem; margin-top: -8px; }
.admin-login-field { width: 100%; display: flex; flex-direction: column; gap: 4px; }
.admin-login-field label { font-size: 0.8rem; font-weight: 600; color: var(--muted); }
.admin-login-field input {
  padding: 10px 14px; border: 1px solid var(--border);
  border-radius: var(--radius); font-size: 0.95rem;
  background: var(--surface); color: var(--text);
  outline: none; transition: border-color var(--dur-md);
}
.admin-login-field input:focus { border-color: var(--dark); }
.admin-login-field select {
  padding: 10px 14px; border: 1px solid var(--border);
  border-radius: var(--radius); font-size: 0.95rem;
  background: var(--surface); color: var(--text);
  outline: none; transition: border-color var(--dur-md);
  font-family: inherit; cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}
.admin-login-field select:focus { border-color: var(--dark); }

/* 密码框操作按钮 */
.pw-action-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer;
  padding: 4px; line-height: 1; color: var(--muted);
  border-radius: var(--radius-xs); transition: color var(--dur-fast), background var(--dur-fast);
}
.pw-action-btn:hover { color: var(--text); background: var(--hover); }

.admin-login-error { color: #d63031; font-size: 0.82rem; text-align: center; }

/* ---- Register validation hints ---- */
.reg-hint {
  font-size: 0.7rem; color: var(--muted);
  margin-top: 2px; min-height: 1em; transition: color var(--dur-md);
}
.reg-hint.ok   { color: #2ecc71; }
.reg-hint.bad  { color: #e74c3c; }
.admin-login-field input.reg-ok  { border-color: #2ecc71; }
.admin-login-field input.reg-bad { border-color: #e74c3c; }