:root {
  --bg: #f7f7f9;
  --surface: #ffffff;
  --text: #1c1c1e;
  --text-muted: #6b6b70;
  --border: #e2e2e6;
  --accent: #111111;
  --accent-hover: #2a2a2e;
  --accent-text: #ffffff;
  --danger: #dc2626;
  /* Faint washes of the text color, for tinted blocks and hovers. They follow
     --text, so the same two values work in both light and dark. */
  --tint: color-mix(in srgb, var(--text) 5%, transparent);
  --tint-strong: color-mix(in srgb, var(--text) 9%, transparent);
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16161a;
    --surface: #212126;
    --text: #f0f0f2;
    --text-muted: #a0a0a8;
    --border: #34343a;
    --accent: #f0f0f2;
    --accent-hover: #ffffff;
    --accent-text: #16161a;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }

html {
  touch-action: manipulation;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  background: var(--bg);
  color: var(--text);
  touch-action: manipulation;
  padding-top: var(--header-h, 64px);
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
}

.app-header h1 {
  font-size: 1.25rem;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-icon {
  border-radius: 6px;
  display: block;
}

.header-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px;
}

.toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

#search {
  flex: 1;
  min-width: 200px;
}

input, textarea, select {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
}

input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.btn {
  font: inherit;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 14px;
  cursor: pointer;
  background: var(--surface);
  color: var(--text);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-ghost:hover { background: var(--bg); }

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

.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.template-grid[hidden] {
  display: none;
}

.template-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}

.card-title {
  font-weight: 600;
  margin: 0;
  word-break: break-word;
}

.card-category {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  padding: 2px 8px;
  border-radius: 999px;
  align-self: flex-start;
}

.branch-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.branch-tabs-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.branch-tab {
  font: inherit;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 10px;
  cursor: pointer;
  background: var(--bg);
  color: var(--text-muted);
}

.branch-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.btn-clear-inputs {
  align-self: flex-start;
  font: inherit;
  font-size: 0.72rem;
  color: var(--text-muted);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.btn-clear-inputs:hover {
  color: var(--text);
}

.saved-inputs-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.saved-inputs-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.saved-input-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px 8px;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.saved-input-name {
  font-size: 0.8rem;
  font-weight: 600;
  word-break: break-word;
}

.saved-input-date {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-right: auto;
}

.saved-input-actions {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.btn-copy-saved,
.btn-edit-saved,
.btn-stop-editing,
.btn-save-inputs,
.btn-start-selection,
.btn-toggle-all-selected,
.btn-edit-selected,
.btn-rename-selected,
.btn-delete-selected,
.btn-delete-saved,
.btn-exit-selection {
  font: inherit;
  font-size: 0.72rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 8px;
  cursor: pointer;
  background: none;
  color: var(--text);
  white-space: nowrap;
  align-self: flex-start;
}
.btn-edit-saved:hover,
.btn-stop-editing:hover,
.btn-save-inputs:hover,
.btn-start-selection:hover,
.btn-toggle-all-selected:hover,
.btn-edit-selected:hover,
.btn-rename-selected:hover,
.btn-exit-selection:hover {
  background: var(--tint);
}
.btn-delete-selected,
.btn-delete-saved {
  color: var(--danger);
}
.btn-delete-saved:hover,
.btn-delete-selected:hover:not(:disabled) {
  background: color-mix(in srgb, var(--danger) 10%, transparent);
}
.btn-delete-selected:disabled {
  opacity: 0.4;
  cursor: default;
}

/* ---- 一時保存の選択モード ---- */

.saved-inputs-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.saved-selection-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--tint);
}

.saved-selection-count {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-right: auto;
}

/* The row itself is the checkbox while selecting, so it has to look pressable. */
.saved-input-item.selectable {
  cursor: pointer;
  user-select: none;
}
.saved-input-item.selectable:hover {
  background: var(--tint);
}
.saved-input-item.picked {
  border-color: var(--accent);
  background: var(--tint-strong);
}

.saved-input-tick {
  font-size: 0.95rem;
  line-height: 1;
  color: var(--text-muted);
}
.saved-input-item.picked .saved-input-tick {
  color: var(--text);
}

/* The one-tap action on a saved input, so it reads as the primary thing to press. */
.btn-copy-saved {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}
.btn-copy-saved:hover {
  background: var(--accent-hover);
}

/* ---- 保存した入力の編集モード ---- */

.template-card.editing {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow);
}

.editing-banner {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 2px 8px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text);
  background: var(--tint-strong);
  border-radius: 6px;
  padding: 6px 8px;
}

.editing-banner-hint {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-muted);
}

.saved-input-item.editing {
  border-color: var(--accent);
  background: var(--tint);
}

.saved-input-badge {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--accent-text);
  background: var(--accent);
  border-radius: 999px;
  padding: 1px 6px;
  white-space: nowrap;
}

.btn-stop-editing {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}
.btn-stop-editing:hover {
  background: var(--accent-hover);
}

.card-preview {
  color: var(--text-muted);
  font-size: 0.875rem;
  white-space: pre-wrap;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  flex: 1;
}

.card-preview[data-id] { cursor: pointer; }

.card-actions {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}

.card-actions .btn {
  flex: 1;
  padding: 7px 10px;
  font-size: 0.875rem;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

dialog {
  border: none;
  border-radius: var(--radius);
  padding: 0;
  background: var(--surface);
  color: var(--text);
  max-width: 480px;
  width: 90vw;
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.5);
}

#template-form,
#saved-input-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
  /* No bottom padding: the sticky action bar below supplies its own, so it can
     sit flush against the bottom edge of the scroll area. */
  padding: 20px 20px 0;
  max-height: 85vh;
  overflow-y: auto;
  overscroll-behavior: contain;
}

#template-form > *,
#saved-input-form > * {
  flex-shrink: 0;
}

#template-form h2,
#saved-input-form h2 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

#template-form label,
#saved-input-form label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 8px;
}

#field-body {
  resize: vertical;
  font-size: 0.9rem;
}

.body-action-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.body-action-lead {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.body-action-row .btn-small {
  margin-top: 0;
  padding: 6px 10px;
  font-size: 0.82rem;
}

.insert-existing-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding: 5px 8px;
  margin-top: 6px;
  border-radius: var(--radius);
  background: var(--tint);
}

.insert-existing-row .btn-small {
  margin-top: 0;
}
.insert-existing-row[hidden] {
  display: none;
}

.insert-existing-arrow {
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
}

#existing-field-select {
  font-size: 0.82rem;
  padding: 5px 8px;
}

.editor-help {
  margin-top: 8px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--tint);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.editor-help summary {
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
}

.editor-help p {
  margin: 8px 0 0;
  line-height: 1.5;
}

.editor-help b { color: var(--text); }

/* ---- 分岐 / 入力欄 の一覧 ---- */

.editor-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 16px;
}
.editor-section[hidden] {
  display: none;
}

.editor-section-title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
}

.editor-count {
  font-size: 0.72rem;
  font-weight: 400;
}

.slots-editor {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.slot-block {
  border: 1px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  border-radius: var(--radius);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.slot-block-head {
  display: flex;
  gap: 6px;
  align-items: center;
}

/* Position in the body, so a block is easy to match with the spot it controls. */
.block-order {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--tint-strong);
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 700;
}

/* Tiny column captions — the inputs' placeholders vanish once they're filled in. */
.slot-option-caption {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-bottom: -2px;
}

/* Line the caption up with the text inside the input below it, not the box edge. */
.slot-option-caption span {
  padding-left: 9px;
}

.slot-block:not(.field-block) .slot-option-caption,
.slot-option-row {
  display: grid;
  grid-template-columns: minmax(0, 30%) minmax(0, 1fr) 28px;
  gap: 6px;
  align-items: center;
}

.slot-label,
.field-label {
  flex: 1;
  min-width: 0;
  font-size: 0.85rem;
  padding: 7px 10px;
}

.btn-remove-slot {
  font: inherit;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  background: var(--surface);
  color: var(--danger);
  white-space: nowrap;
  flex-shrink: 0;
}
.btn-remove-slot:hover { background: var(--bg); }

.slot-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.option-label,
.option-text {
  font-size: 0.82rem;
  padding: 6px 8px;
  min-width: 0;
}

.btn-remove-option {
  font: inherit;
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 28px;
  height: 28px;
  line-height: 1;
  cursor: pointer;
  background: var(--surface);
  color: var(--danger);
  flex-shrink: 0;
}
.btn-remove-option:hover { background: var(--bg); }

/* Same shape as a branch block. The dashed edge is what tells them apart now
   that neither one carries a color: a blank to fill in, not a choice to pick. */
.field-block {
  border-style: dashed;
}

.field-default {
  font-size: 0.85rem;
  resize: vertical;
  min-height: 2.2em;
  font-family: inherit;
  width: 100%;
}

.btn-remove-field {
  font: inherit;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  background: var(--surface);
  color: var(--danger);
  white-space: nowrap;
  flex-shrink: 0;
}
.btn-remove-field:hover { background: var(--bg); }

.field-row {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  flex-wrap: wrap;
}

.field-row-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  flex-shrink: 0;
  padding-top: 6px;
}

.field-input {
  flex: 1;
  min-width: 120px;
  font-size: 0.82rem;
  padding: 5px 8px;
  min-height: 1.9em;
  line-height: 1.4;
  font-family: inherit;
  /* It grows to fit its content, so it never needs to scroll itself — and a
     scrollable textarea inside the card list would steal page scrolls. */
  resize: none;
  overflow: hidden;
}

.body-preview {
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  font-size: 0.85rem;
  white-space: pre-wrap;
  color: var(--text);
  background: var(--bg);
  max-height: 160px;
  overflow-y: auto;
}

.btn-small {
  align-self: flex-start;
  padding: 6px 12px;
  font-size: 0.85rem;
  margin-top: 4px;
}

/* Stays reachable however long the branch/field list gets. */
.dialog-actions {
  position: sticky;
  bottom: 0;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: 16px -20px 0;
  padding: 12px 20px;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
/* Kept apart from 保存/キャンセル so it is not hit on the way to them. */
#btn-delete-template[hidden] {
  display: none;
}
#btn-delete-template {
  margin-right: auto;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  animation: fade-in-out 1.8s ease forwards;
  z-index: 100;
}

@keyframes fade-in-out {
  0% { opacity: 0; transform: translate(-50%, 8px); }
  15% { opacity: 1; transform: translate(-50%, 0); }
  85% { opacity: 1; }
  100% { opacity: 0; }
}

.app-version {
  text-align: center;
  padding: 8px 20px 20px;
  font-size: 0.72rem;
  color: var(--text-muted);
  opacity: 0.7;
}

/* ---- 同期 ---- */
#sync-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 20px 0;
  max-height: 85vh;
  overflow-y: auto;
  overscroll-behavior: contain;
}

#sync-form > * { flex-shrink: 0; }

#sync-form h2 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

#sync-form label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Inputs stay at 16px so iOS does not zoom in when they get focus. */
#sync-form input { font-size: 16px; }

.sync-note {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.sync-status {
  margin: 4px 0 0;
  padding: 8px 10px;
  border-radius: var(--radius);
  background: var(--tint);
  font-size: 0.85rem;
}

/* A small dot on the button says at a glance whether this device is syncing. */
#btn-sync::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 6px;
  border-radius: 50%;
  vertical-align: middle;
  background: var(--border);
}
#btn-sync[data-state="on"]::before { background: var(--text); }
#btn-sync[data-state="error"]::before { background: var(--danger); }

/* ---- 一時保存のグループ ---- */
.saved-group { display: flex; flex-direction: column; gap: 4px; }
.saved-group + .saved-group { margin-top: 6px; }

.saved-group-head {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 4px 2px;
  border: none;
  background: none;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}
.saved-group-caret { width: 0.9em; }
.saved-group-count {
  font-weight: 400;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--tint);
}

/* 16px keeps iOS from zooming into the field. */
#saved-input-form input { font-size: 16px; }

/* ---- 全文プレビュー ---- */
#preview-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 20px 0;
  max-height: 85vh;
}

#preview-form > * { flex-shrink: 0; }

#preview-form h2 {
  margin: 0;
  font-size: 1.1rem;
  overflow-wrap: anywhere;
}

.preview-note {
  margin: 0 0 4px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Only the text scrolls; the title and the buttons stay put. */
#preview-form > .preview-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 0.95rem;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: var(--bg);
  color: var(--text);
  user-select: text;
  -webkit-user-select: text;
}