/* Admin authentication pages (Devise views under app/views/admin_users). */
:root {
  color-scheme: light dark;
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1f2328;
  --muted: #5f6672;
  --border: #d5d9e0;
  --accent: #2f5bd3;
  --danger: #c0362c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --card: #1d2026;
    --text: #e8eaed;
    --muted: #9aa1ab;
    --border: #353a43;
    --accent: #7c9bff;
    --danger: #ff7b72;
  }
}

body.auth {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

.auth-card {
  width: min(100%, 24rem);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 2rem;
}

.auth-brand { margin: 0 0 0.25rem; color: var(--muted); font-size: 0.85rem; letter-spacing: 0.04em; text-transform: uppercase; }
.auth-card h1 { margin: 0 0 1.25rem; font-size: 1.4rem; }
.auth-card .field p { margin: 0 0 0.35rem; }
.auth-card .field { margin-bottom: 1rem; }
.auth-card em { color: var(--muted); font-style: normal; font-size: 0.85rem; }

.auth-card input[type="email"],
.auth-card input[type="password"] {
  box-sizing: border-box;
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: transparent;
  color: inherit;
  font: inherit;
}

.auth-card input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.auth-card input[type="submit"] {
  width: 100%;
  padding: 0.6rem;
  border: 0;
  border-radius: 0.5rem;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.auth-card a { color: var(--accent); }
.auth-card > p:last-of-type { margin-bottom: 0; }

.flash { padding: 0.6rem 0.8rem; border-radius: 0.5rem; border: 1px solid var(--border); }
.flash-alert, #error_explanation { border-color: var(--danger); color: var(--danger); }
#error_explanation { padding: 0.6rem 0.8rem; border: 1px solid; border-radius: 0.5rem; margin-bottom: 1rem; }
#error_explanation h2 { margin: 0 0 0.25rem; font-size: 0.95rem; }
#error_explanation ul { margin: 0; padding-left: 1.1rem; }
.auth-card .remember { display: flex; align-items: center; gap: 0.5rem; }