:root {
  --bg: #eef0f6;
  --surface: #ffffff;
  --text: #1f2330;
  --muted: #646b7d;
  --border: #c9cedb;
  --primary: #3f51b5;
  --primary-text: #ffffff;
  --primary-soft: #e3e7fa;
  --danger: #c62828;
  --focus: #7986cb;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161d;
    --surface: #1e2129;
    --text: #e6e8ef;
    --muted: #9ba2b5;
    --border: #3a3f4d;
    --primary: #8c9eff;
    --primary-text: #10132a;
    --primary-soft: #262c4a;
    --danger: #ef7d7d;
    --focus: #8c9eff;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  background: var(--primary);
  color: var(--primary-text);
  padding: 12px 16px;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 0 auto;
  max-width: 640px;
}

.topbar h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}

.topbar-button {
  min-height: 40px;
  padding: 6px 14px;
  border: 1px solid currentColor;
  border-radius: 8px;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

.steps {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 16px auto 0;
  padding: 0 16px;
  width: 100%;
  max-width: 672px;
}

.steps li {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  padding-bottom: 6px;
  border-bottom: 3px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

.steps li.active {
  border-bottom-color: var(--primary);
  color: var(--text);
  font-weight: 600;
}

.steps .num {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--border);
  color: var(--text);
  font-size: 12px;
}

.steps li.active .num {
  background: var(--primary);
  color: var(--primary-text);
}

.steps .label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card {
  width: calc(100% - 32px);
  max-width: 640px;
  margin: 16px auto;
  padding: 20px;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}

.card h2 {
  margin: 0 0 16px;
  font-size: 20px;
}

.field {
  margin-bottom: 16px;
}

.field-label {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
  font-weight: 600;
}

.field-hint {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.input {
  display: block;
  width: 100%;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

textarea.input {
  resize: vertical;
}

.input:focus,
.button:focus-visible,
.preset-main:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}

.secret {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

.with-sample {
  display: flex;
  align-items: center;
  gap: 8px;
}

.with-sample .input {
  flex: 1;
  min-width: 0;
}

.sample {
  flex: none;
  min-width: 4.5em;
  font-size: 24px;
  letter-spacing: 2px;
  text-align: center;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.toolbar {
  display: flex;
  margin-bottom: 16px;
}

.settings-section + .settings-section {
  margin-top: 24px;
}

.settings-section h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.phonetic {
  list-style: none;
  margin: -8px 0 16px;
  padding: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.phonetic.is-hidden {
  visibility: hidden;
}

.phonetic li {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--primary-soft);
}

.phonetic-char {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-weight: 700;
}

.actions .primary {
  margin-left: auto;
}

.button {
  min-height: 44px;
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.button.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-text);
}

.button.danger {
  color: var(--danger);
}

.button.icon {
  min-width: 44px;
  padding: 0;
  font-size: 20px;
}

.button:disabled {
  opacity: 0.45;
  cursor: default;
}

.search {
  margin-bottom: 12px;
}

.presets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preset {
  display: flex;
  align-items: stretch;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.preset-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 10px 12px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.preset-main:hover {
  background: var(--primary-soft);
}

.preset-main > span {
  max-width: 100%;
  overflow-wrap: anywhere;
}

.preset-site {
  font-weight: 600;
}

.preset-user,
.preset-comment {
  font-size: 14px;
}

.preset-note,
.preset-rules {
  color: var(--muted);
  font-size: 13px;
}

.preset .button.icon {
  border: 0;
  align-self: center;
}

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

.error {
  color: var(--danger);
}

.status {
  margin-bottom: 8px;
}

.progress {
  width: 100%;
  height: 8px;
  margin-bottom: 16px;
  accent-color: var(--primary);
}

.notice {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  max-width: calc(100% - 32px);
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--text);
  color: var(--bg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.footer {
  margin-top: auto;
  padding: 16px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.footer a {
  color: inherit;
}

a {
  color: var(--primary);
  overflow-wrap: anywhere;
}