:root {
  --admin-sessions-bg: #f0f2f5;
  --admin-sessions-card-bg: #ffffff;
  --admin-sessions-border: #d8dee9;
  --admin-sessions-text: #1f2933;
  --admin-sessions-muted: #52606d;
  --admin-sessions-primary: #2563eb;
  --admin-sessions-primary-hover: #1d4ed8;
  --admin-sessions-focus: rgba(37, 99, 235, 0.35);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body.admin-sessions {
  margin: 0;
  min-height: 100%;
}

body.admin-sessions {
  background: var(--admin-sessions-bg);
  color: var(--admin-sessions-text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

.admin-sessions__shell {
  align-items: center;
  display: flex;
  justify-content: center;
  min-height: 100vh;
  padding: 1.5rem;
}

.admin-sessions__card {
  background: var(--admin-sessions-card-bg);
  border: 1px solid var(--admin-sessions-border);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  max-width: 420px;
  padding: 2rem;
  width: 100%;
}

.admin-sessions__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
}

.admin-sessions__subtitle {
  color: var(--admin-sessions-muted);
  font-size: 0.95rem;
  margin: 0 0 1.5rem;
}

.admin-sessions__field {
  margin-bottom: 1rem;
}

.admin-sessions__field label {
  color: var(--admin-sessions-text);
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.admin-sessions__field input {
  appearance: none;
  background: #fff;
  border: 1px solid var(--admin-sessions-border);
  border-radius: 8px;
  color: var(--admin-sessions-text);
  font: inherit;
  padding: 0.65rem 0.75rem;
  width: 100%;
}

.admin-sessions__field input:focus {
  border-color: var(--admin-sessions-primary);
  box-shadow: 0 0 0 3px var(--admin-sessions-focus);
  outline: none;
}

.admin-sessions__actions {
  margin-top: 1.5rem;
}

.admin-sessions__submit {
  appearance: none;
  background: var(--admin-sessions-primary);
  border: 0;
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  padding: 0.7rem 1rem;
  width: 100%;
}

.admin-sessions__submit:hover {
  background: var(--admin-sessions-primary-hover);
}

.admin-sessions__submit:focus {
  box-shadow: 0 0 0 3px var(--admin-sessions-focus);
  outline: none;
}

.admin-sessions__flashes {
  margin-bottom: 1rem;
}

.admin-sessions__flashes .flash-alert,
.admin-sessions__flashes .flash-notice {
  border-radius: 8px;
  font-size: 0.875rem;
  margin: 0 0 0.5rem;
  padding: 0.65rem 0.75rem;
}

.admin-sessions__flashes .flash-alert {
  background: #fee2e2;
  color: #991b1b;
}

.admin-sessions__flashes .flash-notice {
  background: #dbeafe;
  color: #1e40af;
}