*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--color-ground);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.5;
  min-height: 100vh;
  padding: var(--space-6) var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
}

::selection {
  background: var(--color-ink);
  color: var(--color-ground);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

a {
  color: var(--color-ink);
  text-underline-offset: 3px;
}

.shell {
  width: 100%;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

header {
  border-bottom: 2px solid var(--color-ink);
  padding-bottom: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

h1 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 700;
  text-wrap: balance;
}

.lede {
  color: var(--color-muted);
  font-size: var(--text-sm);
  text-wrap: pretty;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-2);
  background: var(--color-surface-subtle);
  align-self: flex-start;
}

.pane {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

h2 {
  font-size: var(--text-lg);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 600;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="file"] {
  font-family: inherit;
  font-size: var(--text-sm);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-ink);
  width: 100%;
  border-radius: var(--radius-sharp);
}

input[type="file"] {
  background: var(--color-surface-subtle);
}

button {
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-4);
  background: var(--color-ink);
  color: var(--color-ground);
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sharp);
  min-height: 44px;
}

button:hover:not(:disabled) {
  opacity: 0.9;
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--color-surface-subtle);
  color: var(--color-ink);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-ground);
}

.button-row {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.message-box {
  padding: var(--space-3);
  font-size: var(--text-sm);
  border: 1px solid transparent;
}

.message-box:empty {
  display: none;
}

.message-success {
  background: color-mix(in oklch, var(--color-success) 12%, var(--color-surface));
  color: var(--color-success);
  border-color: color-mix(in oklch, var(--color-success) 30%, transparent);
}

.message-error {
  background: color-mix(in oklch, var(--color-danger) 12%, var(--color-surface));
  color: var(--color-danger);
  border-color: color-mix(in oklch, var(--color-danger) 30%, transparent);
}

.checks-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.checks-item {
  padding: var(--space-3);
  background: var(--color-surface-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  word-break: break-all;
}

.checks-empty {
  font-size: var(--text-sm);
  color: var(--color-muted);
  font-style: italic;
}

.auth-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
  color: var(--color-muted);
}

footer {
  font-size: var(--text-xs);
  color: var(--color-muted);
  text-align: center;
  margin-top: var(--space-4);
}