:root {
  color-scheme: light;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #0f172a;
  --color-muted: #64748b;
  --color-border: #e2e8f0;
  --color-accent: #4f46e5;
  --color-accent-hover: #4338ca;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.site-header-inner {
  padding: 0.6rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 650;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.brand:hover {
  text-decoration: none;
  color: var(--color-accent);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-right .muted {
  font-size: 0.875rem;
}

/* The sign-out form must not break flex alignment of its button. */
.header-right form {
  display: contents;
}

.header-right a,
.header-right button.link-button {
  font-size: 0.9rem;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

main.wide {
  max-width: 960px;
}

h1 {
  font-size: 1.375rem;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.05rem;
  margin: 2rem 0 0.75rem;
}

p {
  margin: 0 0 1rem;
}

.muted {
  color: var(--color-muted);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  text-align: left;
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-muted);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: none;
}

.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--color-muted);
}

label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.375rem;
}

input[type='text'],
input[type='email'] {
  width: 100%;
  padding: 0.5rem 0.625rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.95rem;
  background: var(--color-surface);
  color: var(--color-text);
}

input[type='text']:focus,
input[type='email']:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.field {
  margin-bottom: 1rem;
}

button,
input[type='submit'] {
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 1rem;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 150ms ease-out;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

button:hover,
input[type='submit']:hover {
  background: var(--color-accent-hover);
}

button.secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

button.secondary:hover {
  background: var(--color-bg);
}

button.link-button {
  background: none;
  border: none;
  color: var(--color-accent);
  padding: 0;
  font-size: inherit;
  cursor: pointer;
}

.token-plaintext {
  display: block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.75rem;
  word-break: break-all;
  margin: 0.5rem 0;
}

.error-message {
  color: #b42318;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.form-card {
  max-width: 400px;
}

/* Settings page structure */
.page-intro {
  margin-top: -0.5rem;
  margin-bottom: 2rem;
}

.settings-section {
  margin-bottom: 2.5rem;
}

.settings-section h2 {
  font-size: 1.05rem;
  margin: 0 0 0.75rem;
}

.card.table-card {
  padding: 0;
  overflow: hidden;
}

.table-card table {
  border: none;
}

.cell-actions {
  text-align: right;
}

button.danger {
  color: #b42318;
  border-color: #f0c7c2;
}

button.danger:hover {
  background: #fef3f2;
}

.form-row {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
}

.form-row .field {
  margin-bottom: 0;
}

.field-grow {
  flex: 1;
}

.form-card.form-card {
  max-width: 520px;
}

.callout {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
}

.callout-accent {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.callout-title {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.callout h3 {
  font-size: 0.95rem;
  margin: 1.25rem 0 0.25rem;
}

.callout p {
  margin: 0.25rem 0 0.5rem;
}

.copy-row {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
}

.copy-row .token-plaintext,
.copy-row .snippet {
  flex: 1;
  margin: 0;
  min-width: 0;
}

.copy-btn {
  flex: none;
  align-self: center;
}

.snippet {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 8px;
  padding: 0.875rem 1rem;
  overflow-x: auto;
  white-space: pre;
  margin: 0.5rem 0;
}

.small {
  font-size: 0.85rem;
}