:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-border: #d7deea;
  --text: #1f2937;
  --muted: #5b6474;
  --primary: #1264ff;
  --primary-hover: #0b52d0;
  --danger: #cf2f45;
  --danger-hover: #a52739;
  --success-bg: #eefbf3;
  --success-border: #b8e7c8;
  --error-bg: #fff3f4;
  --error-border: #f0b8c0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.page {
  min-height: 100vh;
  padding: 40px 20px 64px;
}

.hero,
.panel {
  width: min(100%, 760px);
  margin: 0 auto;
}

.hero {
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 14px;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 32px;
  line-height: 1.15;
}

h2 {
  font-size: 20px;
  margin-bottom: 12px;
}

h3 {
  font-size: 16px;
  margin-bottom: 10px;
}

.lead,
.body,
.value,
.label,
.list,
.confirm-row {
  line-height: 1.6;
}

.lead {
  margin: 12px 0 0;
  font-size: 16px;
  color: var(--muted);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 24px;
}

.body {
  margin: 0 0 16px;
  color: var(--muted);
}

a {
  color: var(--primary);
  font-weight: 600;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--primary-hover);
}

.auth-card,
.delete-card,
.success-card,
.notice {
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 16px;
  background: #fbfcfe;
}

.auth-card,
.delete-card,
.success-card {
  margin-top: 16px;
}

.auth-state {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.label {
  margin: 0 0 4px;
  font-size: 13px;
  color: var(--muted);
}

.value {
  margin: 0;
  font-size: 16px;
  word-break: break-word;
}

.button {
  appearance: none;
  border: 0;
  border-radius: 8px;
  padding: 12px 16px;
  min-height: 44px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.16s ease, opacity 0.16s ease;
}

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

.button.primary {
  background: var(--primary);
  color: #fff;
}

.button.primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

.button.secondary {
  background: #e8edf7;
  color: var(--text);
}

.button.danger {
  width: 100%;
  margin-top: 16px;
  background: var(--danger);
  color: #fff;
}

.button.danger:hover:not(:disabled) {
  background: var(--danger-hover);
}

.notice {
  margin-top: 16px;
  color: var(--text);
}

.notice-success {
  background: var(--success-bg);
  border-color: var(--success-border);
}

.notice-error {
  background: var(--error-bg);
  border-color: var(--error-border);
}

.list {
  margin: 0 0 16px;
  padding-left: 20px;
}

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

.document p {
  margin: 0 0 16px;
  line-height: 1.7;
}

.document h2 {
  margin-top: 28px;
  color: var(--text);
}

.document h2:first-of-type {
  margin-top: 0;
}

.document strong {
  color: var(--text);
}

.document .list li {
  margin-bottom: 8px;
}

.confirm-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: 12px;
}

.hidden {
  display: none !important;
}

@media (max-width: 640px) {
  .page {
    padding: 24px 16px 40px;
  }

  h1 {
    font-size: 28px;
  }

  .panel {
    padding: 20px;
  }

  .auth-state {
    flex-direction: column;
    align-items: stretch;
  }

  .button.primary,
  .button.secondary {
    width: 100%;
  }
}