/* ════════════════════════════════════════════════════════════════
   Writer 0.1 — theme tokens
   Every skin overrides only these variables. Behavior never changes
   with the theme (Davenport-compatible reskinning).
   ════════════════════════════════════════════════════════════════ */
:root, [data-theme="parchment"] {
  --bg: oklch(0.985 0.004 90);
  --bg-panel: oklch(0.965 0.005 90);
  --bg-editor: oklch(0.995 0.002 90);
  --bg-raised: #ffffff;
  --ink: oklch(0.22 0.008 90);
  --ink-soft: oklch(0.45 0.01 90);
  --ink-faint: oklch(0.6 0.01 90);
  --line: oklch(0.9 0.006 90);
  --line-strong: oklch(0.82 0.008 90);
  --accent: oklch(0.5 0.11 40);
  --accent-soft: oklch(0.93 0.03 40);
  --ai: oklch(0.45 0.09 260);
  --ai-soft: oklch(0.94 0.025 260);
  --danger: oklch(0.5 0.15 25);
  --ok: oklch(0.5 0.12 150);
  --diff-del: oklch(0.93 0.05 25);
  --diff-ins: oklch(0.93 0.06 150);
  --font-ui: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  --radius: 8px;
  --shadow: 0 8px 30px rgba(30, 25, 15, 0.12);
}
[data-theme="ink"] {
  --bg: oklch(0.2 0.01 260);
  --bg-panel: oklch(0.24 0.012 260);
  --bg-editor: oklch(0.17 0.01 260);
  --bg-raised: oklch(0.27 0.014 260);
  --ink: oklch(0.92 0.008 90);
  --ink-soft: oklch(0.72 0.01 90);
  --ink-faint: oklch(0.58 0.01 90);
  --line: oklch(0.32 0.012 260);
  --line-strong: oklch(0.4 0.015 260);
  --accent: oklch(0.72 0.1 60);
  --accent-soft: oklch(0.32 0.04 60);
  --ai: oklch(0.75 0.09 260);
  --ai-soft: oklch(0.31 0.05 260);
  --danger: oklch(0.68 0.15 25);
  --ok: oklch(0.7 0.12 150);
  --diff-del: oklch(0.32 0.06 25);
  --diff-ins: oklch(0.32 0.07 150);
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}
[data-theme="plain"] {
  --bg: #fafafa;
  --bg-panel: #f2f2f2;
  --bg-editor: #ffffff;
  --bg-raised: #ffffff;
  --ink: #1a1a1a;
  --ink-soft: #555;
  --ink-faint: #888;
  --line: #e2e2e2;
  --line-strong: #cfcfcf;
  --accent: #2b5aa0;
  --accent-soft: #e3ecf8;
  --ai: #4a4a8f;
  --ai-soft: #e9e9f6;
  --danger: #a03030;
  --ok: #2f7a4a;
  --diff-del: #fbe4e4;
  --diff-ins: #e0f2e5;
  --radius: 4px;
}

/* ── Base ─────────────────────────────────────────────────────── */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 13.5px;
  color: var(--ink);
  background: var(--bg);
}
button { font: inherit; color: inherit; }
hr { border: 0; border-top: 1px solid var(--line); margin: 4px 0; }
.muted { color: var(--ink-faint); font-size: 12px; }
.kbd { float: right; color: var(--ink-faint); font-size: 11px; margin-left: 18px; }

#app { height: 100vh; display: flex; flex-direction: column; }
.first-run {
  display: flex; align-items: center; justify-content: center; gap: 18px;
  padding: 9px 16px; background: var(--ai-soft); border-bottom: 1px solid var(--ai);
  color: var(--ink); font-size: 12.5px;
}
.first-run[hidden] { display: none; }
.receipt { border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px; margin: 8px 0; background: var(--bg-editor); }

/* ── Menu bar ─────────────────────────────────────────────────── */
#menubar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 12px; height: 40px;
  background: var(--bg-panel); border-bottom: 1px solid var(--line);
  user-select: none;
}
.menubar-left { display: flex; align-items: center; gap: 10px; }
#appmark {
  width: 30px; height: 30px; display: grid; place-items: center; flex: 0 0 auto;
}
#appmark img {
  display: block; width: 100%; height: 100%; object-fit: contain;
}
.brand-name {
  margin-left: -4px; font-family: var(--font-serif); font-size: 15px;
  font-weight: 700; letter-spacing: .01em; color: var(--ink);
}
#menus { display: flex; }
#project-name { font-weight: 600; font-size: 12.5px; color: var(--ink-soft); }

.menu { position: relative; }
.menu-title {
  background: none; border: 0; padding: 6px 10px; border-radius: 6px; cursor: pointer;
}
.menu-title:hover, .menu.open > .menu-title { background: var(--accent-soft); }
.menu-drop {
  display: none; position: absolute; top: 100%; left: 0; z-index: 60;
  min-width: 230px; padding: 5px;
  background: var(--bg-raised); border: 1px solid var(--line-strong);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.menu-drop-right { left: auto; right: 0; }
.menu.open > .menu-drop { display: block; }
.menu-drop button {
  display: block; width: 100%; text-align: left; border: 0; background: none;
  padding: 7px 10px; border-radius: 5px; cursor: pointer; font-size: 13px;
}
.menu-drop button:hover { background: var(--accent-soft); }
.menu[data-menu="rewrite"].open { display: contents; }
.rewrite-menu {
  position: static; flex: 0 0 calc(100% + 24px); width: calc(100% + 24px);
  min-width: 0; max-height: min(48vh, 480px); overflow-y: auto;
  margin: 4px -12px -5px; padding: 7px 12px 10px;
  border-inline: 0; border-radius: 0; box-shadow: inset 0 1px var(--line);
}
.menu-section-label {
  padding: 7px 2px 4px; color: var(--ink-faint); font-size: 10.5px;
  font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
}
.rewrite-grid { display: grid; gap: 4px; }
.edit-grid { grid-template-columns: repeat(7, minmax(105px, 1fr)); }
.tone-grid { grid-template-columns: repeat(5, minmax(105px, 1fr)); }
.voice-grid { grid-template-columns: repeat(3, minmax(180px, 1fr)); }
.menu-drop .rewrite-grid button {
  border: 1px solid var(--line); background: var(--bg-editor);
  padding: 6px 9px; text-align: center;
}
.menu-drop .rewrite-grid button:hover { border-color: var(--ai); background: var(--ai-soft); }

@media (max-width: 760px) {
  .edit-grid, .tone-grid { grid-template-columns: repeat(2, minmax(115px, 1fr)); }
  .voice-grid { grid-template-columns: 1fr; }
}

/* ── Toolbars ─────────────────────────────────────────────────── */
.toolbar {
  display: flex; align-items: center; gap: 4px; flex-wrap: wrap;
  padding: 5px 12px; background: var(--bg-panel);
  border-bottom: 1px solid var(--line);
}
#toolbar-ai { background: color-mix(in srgb, var(--ai-soft) 45%, var(--bg-panel)); }
.tb {
  border: 1px solid transparent; background: none; border-radius: 6px;
  padding: 5px 9px; cursor: pointer; font-size: 13px; line-height: 1;
  min-height: 28px;
}
.tb:hover { background: var(--bg-raised); border-color: var(--line); }
.tb-ai { color: var(--ai); font-weight: 600; }
.tb-chip {
  border: 1px solid var(--line-strong); background: var(--bg-raised);
  font-size: 12px; color: var(--ink-soft);
}
.tb-chip b { color: var(--ink); font-weight: 600; }
.tb-wide { border: 1px solid var(--line-strong); }
.tb-wide.active { background: var(--accent-soft); border-color: var(--accent); }
.tb-sep { width: 1px; height: 20px; background: var(--line-strong); margin: 0 5px; }
.tb-spacer { flex: 1; }
.tb-select {
  border: 1px solid var(--line-strong); background: var(--bg-raised); color: var(--ink);
  border-radius: 6px; padding: 4px 6px; font-size: 12.5px;
}
.tb-color { display: inline-flex; align-items: center; gap: 3px; }
.tb-color span { border-bottom: 3px solid var(--accent); font-weight: 700; }
.tb-color input { width: 18px; height: 18px; border: 0; padding: 0; background: none; cursor: pointer; }

/* ── Workspace ────────────────────────────────────────────────── */
#workspace { flex: 1; display: flex; min-height: 0; }

#project-panel, #sidecar {
  width: 250px; flex: 0 0 auto; display: flex; flex-direction: column;
  background: var(--bg-panel); min-height: 0;
}
#project-panel { border-right: 1px solid var(--line); }
#sidecar {
  width: 280px; border-right: 1px solid var(--line);
  background: color-mix(in oklch, var(--bg-panel) 88%, var(--ai-soft));
}
#project-panel.collapsed, #sidecar.collapsed { display: none; }

.panel-head {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 9px 12px; font-size: 11px; font-weight: 700; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--ink-faint);
  border-bottom: 1px solid var(--line);
}
.panel-head-actions { display: flex; align-items: center; gap: 4px; }
.icon-btn {
  border: 0; background: none; cursor: pointer; color: var(--ink-faint);
  border-radius: 5px; padding: 2px 7px; font-size: 13px;
}
.icon-btn:hover { background: var(--accent-soft); color: var(--ink); }

#project-sections { flex: 1; overflow-y: auto; padding: 6px 0; }
.proj-section { margin-bottom: 4px; }
.proj-section-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 12px 3px; font-size: 11px; font-weight: 600;
  letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-faint);
}
.proj-add { border: 0; background: none; cursor: pointer; color: var(--ink-faint); border-radius: 4px; padding: 0 6px; }
.proj-add:hover { background: var(--accent-soft); color: var(--ink); }
.proj-doc {
  display: flex; align-items: center; gap: 7px; width: 100%;
  border: 0; background: none; text-align: left; cursor: pointer;
  padding: 6px 12px 6px 16px; font-size: 13px; color: var(--ink-soft);
}
.proj-doc:hover { background: var(--accent-soft); }
.proj-doc.active { background: var(--accent-soft); color: var(--ink); font-weight: 600; box-shadow: inset 3px 0 0 var(--accent); }
.proj-doc .doc-dot { font-size: 10px; opacity: 0.55; }
.panel-foot { border-top: 1px solid var(--line); padding: 9px 12px; display: grid; gap: 6px; }
.ghost-btn {
  border: 1px solid var(--line-strong); background: var(--bg-raised);
  border-radius: 6px; padding: 6px 10px; cursor: pointer; font-size: 12.5px; text-align: left;
}
.ghost-btn:hover { border-color: var(--accent); }

/* ── Editor ───────────────────────────────────────────────────── */
#editor-pane { flex: 1; display: flex; flex-direction: column; min-width: 0; background: var(--bg-editor); }
#editor-head {
  display: flex; align-items: baseline; gap: 12px;
  padding: 14px 48px 4px; max-width: 860px; width: 100%; margin: 0 auto;
}
#doc-title {
  flex: 1; border: 0; background: none; color: var(--ink); min-width: 0;
  font-family: var(--font-serif); font-size: 24px; font-weight: 600; padding: 2px 0;
}
#doc-title:focus { outline: none; border-bottom: 1px solid var(--line-strong); }
#editor-body { flex: 1; min-height: 0; position: relative; }
#editor, #preview {
  position: absolute; inset: 0; overflow-y: auto;
  padding: 10px 48px 120px; max-width: 860px; margin: 0 auto; width: 100%;
}
#editor {
  border: 0; resize: none; background: none; color: var(--ink);
  font-family: var(--font-serif); font-size: 17px; line-height: 1.65;
}
#editor:focus { outline: none; }
#editor[data-font="sans"] { font-family: var(--font-sans); }
#editor[data-font="mono"] { font-family: var(--font-mono); font-size: 15px; }

/* rendered markdown */
.prose { font-family: var(--font-serif); font-size: 17px; line-height: 1.65; }
.prose h1 { font-size: 1.7em; line-height: 1.2; margin: 0.8em 0 0.4em; }
.prose h2 { font-size: 1.4em; margin: 0.9em 0 0.4em; }
.prose h3 { font-size: 1.15em; margin: 0.9em 0 0.4em; }
.prose p { margin: 0.55em 0; }
.prose blockquote { margin: 0.7em 0; padding: 2px 16px; border-left: 3px solid var(--line-strong); color: var(--ink-soft); }
.prose pre { background: var(--bg-panel); border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; overflow-x: auto; font-family: var(--font-mono); font-size: 0.82em; }
.prose code { font-family: var(--font-mono); font-size: 0.88em; background: var(--bg-panel); padding: 1px 4px; border-radius: 4px; }
.prose pre code { background: none; padding: 0; }
.prose ul, .prose ol { margin: 0.55em 0; padding-left: 26px; }
.prose a { color: var(--accent); }
.prose hr { border-top: 1px solid var(--line-strong); margin: 1.4em auto; width: 40%; }

/* ── AI sandbox ───────────────────────────────────────────────── */
#sidecar-status {
  display: flex; flex-wrap: wrap; gap: 5px; padding: 8px 10px;
  border-bottom: 1px solid var(--line);
}
.chip {
  border: 1px solid var(--line-strong); background: var(--bg-raised);
  border-radius: 999px; padding: 3px 10px; font-size: 11.5px; cursor: pointer;
  color: var(--ink-soft); max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.chip:hover { border-color: var(--ai); }
.chip-static { cursor: default; }
.chip-static:hover { border-color: var(--line-strong); }
#chat-log { flex: 1; overflow-y: auto; padding: 12px 10px; display: flex; flex-direction: column; gap: 10px; }
.msg { border-radius: var(--radius); padding: 8px 11px; font-size: 13px; line-height: 1.55; white-space: pre-wrap; overflow-wrap: break-word; }
.msg-user { background: var(--accent-soft); align-self: flex-end; max-width: 92%; }
.msg-ai { background: var(--bg-raised); border: 1px solid var(--line); align-self: stretch; }
.msg-meta { font-size: 10.5px; color: var(--ink-faint); margin-bottom: 4px; }
.msg-insert { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; }
.msg-insert button {
  border: 1px solid var(--line-strong); background: var(--bg-panel); border-radius: 5px;
  padding: 3px 8px; font-size: 11px; cursor: pointer;
}
.msg-insert button:hover { border-color: var(--ai); color: var(--ai); }
.msg-note { font-size: 11px; color: var(--ink-faint); font-style: italic; }
#chat-form { border-top: 1px solid var(--line); padding: 8px 10px; }
#chat-input {
  width: 100%; resize: vertical; border: 1px solid var(--line-strong);
  border-radius: var(--radius); background: var(--bg-editor); color: var(--ink);
  padding: 8px 10px; font: inherit; min-height: 56px;
}
#chat-input:focus { outline: none; border-color: var(--ai); }
.chat-actions { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 6px; }
.primary-btn {
  border: 0; background: var(--ink); color: var(--bg); border-radius: 6px;
  padding: 7px 16px; cursor: pointer; font-weight: 600; font-size: 13px;
}
.primary-btn:hover { opacity: 0.88; }
.primary-btn:disabled { opacity: 0.45; cursor: default; }

/* ── Status bar ───────────────────────────────────────────────── */
#statusbar {
  display: flex; align-items: center; gap: 14px; padding: 4px 14px; height: 28px;
  background: var(--bg-panel); border-top: 1px solid var(--line); font-size: 12px;
}
.pill {
  border: 1px solid var(--line-strong); border-radius: 999px; padding: 1px 9px;
  font-size: 11px; color: var(--ink-soft);
}
.pill.local { border-color: var(--ok); color: var(--ok); }
.pill.cloud { border-color: var(--danger); color: var(--danger); }

/* ── Modals ───────────────────────────────────────────────────── */
#modal-root { position: fixed; inset: 0; z-index: 100; }
#modal-backdrop { position: absolute; inset: 0; background: rgba(15, 12, 8, 0.45); }
#modal-card {
  position: absolute; top: 7vh; left: 50%; transform: translateX(-50%);
  width: min(760px, 94vw); max-height: 84vh; overflow-y: auto;
  background: var(--bg-raised); border: 1px solid var(--line-strong);
  border-radius: 12px; box-shadow: var(--shadow); padding: 20px 22px;
}
#modal-card.modal-wide { width: min(980px, 96vw); }
.modal-title { font-family: var(--font-serif); font-size: 20px; font-weight: 600; margin: 0 0 4px; }
.modal-sub { color: var(--ink-soft); font-size: 12.5px; margin: 0 0 14px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
.modal-actions .spread { margin-right: auto; }
.secondary-btn {
  border: 1px solid var(--line-strong); background: var(--bg-raised); border-radius: 6px;
  padding: 7px 14px; cursor: pointer; font-size: 13px;
}
.secondary-btn:hover { border-color: var(--ink); }
.field { margin: 12px 0; }
.field-label { display: block; font-size: 11px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 5px; }
.field input[type="text"], .field input[type="password"], .field textarea, .field select {
  width: 100%; border: 1px solid var(--line-strong); border-radius: 6px;
  background: var(--bg-editor); color: var(--ink); padding: 8px 10px; font: inherit; font-size: 13px;
}
.field textarea { resize: vertical; }
.provider-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.provider-grid .field { margin: 4px 0 12px; }
.provider-grid input { width: 100%; border: 1px solid var(--line-strong); border-radius: 6px; background: var(--bg-editor); color: var(--ink); padding: 8px 10px; }
.byo-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.byo-row > div { min-width: 0; }
.byo-row .muted { display: block; overflow-wrap: anywhere; }
.check-row { display: flex; align-items: flex-start; gap: 8px; padding: 5px 2px; font-size: 13px; }
.check-row input { margin-top: 2px; }
.check-row .muted { display: block; }
.scope-banner {
  border-radius: var(--radius); padding: 9px 12px; font-size: 12.5px; margin: 12px 0;
  border: 1px solid var(--line-strong);
}
.scope-banner.local { border-color: var(--ok); background: color-mix(in srgb, var(--ok) 8%, transparent); }
.scope-banner.cloud { border-color: var(--danger); background: color-mix(in srgb, var(--danger) 8%, transparent); }

/* preflight source excerpt */
.excerpt {
  border: 1px solid var(--line); border-radius: 6px; background: var(--bg-panel);
  padding: 8px 10px; font-family: var(--font-serif); font-size: 13.5px;
  max-height: 110px; overflow-y: auto; white-space: pre-wrap;
}

/* ── Diff preview ─────────────────────────────────────────────── */
.diff-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.diff-col-head { font-size: 11px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 6px; }
.diff-box {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-editor);
  padding: 12px 14px; font-family: var(--font-serif); font-size: 14.5px; line-height: 1.6;
  max-height: 44vh; overflow-y: auto; white-space: pre-wrap; overflow-wrap: break-word;
}
.d-del { background: var(--diff-del); text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--danger) 55%, transparent); border-radius: 2px; }
.d-ins { background: var(--diff-ins); border-radius: 2px; }
.diff-provenance { font-size: 11.5px; color: var(--ink-faint); margin-top: 10px; }

/* revisions list */
.rev-item {
  display: block; width: 100%; text-align: left; cursor: pointer;
  border: 1px solid var(--line); background: var(--bg-editor); border-radius: var(--radius);
  padding: 10px 12px; margin-bottom: 8px;
}
.rev-item:hover { border-color: var(--accent); }
.rev-line1 { display: flex; gap: 8px; align-items: baseline; font-size: 13px; font-weight: 600; flex-wrap: wrap; }
.rev-line2 { font-size: 11.5px; color: var(--ink-faint); margin-top: 3px; }
.rev-op { color: var(--ai); text-transform: capitalize; }

/* provider list in model picker */
.model-group { margin: 10px 0; }
.model-group-head { font-size: 11px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 4px; }
.model-row {
  display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  border: 1px solid var(--line); background: var(--bg-editor); border-radius: var(--radius);
  padding: 9px 12px; margin-bottom: 6px; cursor: pointer; font-size: 13px;
}
.model-row:hover { border-color: var(--ai); }
.model-row.selected { border-color: var(--ai); background: var(--ai-soft); }
.model-badge { margin-left: auto; font-size: 10.5px; border-radius: 999px; padding: 2px 8px; border: 1px solid; white-space: nowrap; }
.model-badge.local { color: var(--ok); border-color: var(--ok); }
.model-badge.cloud { color: var(--danger); border-color: var(--danger); }
.model-badge.adult { color: var(--danger); border-color: var(--danger); }

table.routing { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.routing th, table.routing td { border: 1px solid var(--line); padding: 7px 9px; text-align: left; vertical-align: top; }
table.routing th { background: var(--bg-panel); font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; }

/* ── Toast ────────────────────────────────────────────────────── */
#toast {
  position: fixed; bottom: 44px; left: 50%; transform: translateX(-50%); z-index: 200;
  background: var(--ink); color: var(--bg); border-radius: 8px; padding: 9px 16px;
  font-size: 13px; box-shadow: var(--shadow); max-width: 80vw;
}

/* ── Focus mode (minimal skin) ────────────────────────────────── */
#app.focus-mode #toolbar-ai, #app.focus-mode #project-panel, #app.focus-mode #sidecar { display: none; }

@media (max-width: 1100px) {
  .brand-name { display: none; }
  #project-panel { position: absolute; z-index: 40; height: calc(100% - 1px); box-shadow: var(--shadow); }
  #sidecar { width: 260px; }
  #editor, #preview, #editor-head { padding-left: 20px; padding-right: 20px; }
}

@media (max-width: 640px) {
  #menubar { overflow-x: auto; padding: 0 6px; }
  #menus .menu-title { padding-inline: 7px; }
  .menubar-right, #toolbar-standard .tb-sep, #toolbar-standard .tb-color { display: none; }
  .toolbar { overflow-x: auto; flex-wrap: nowrap; scrollbar-width: thin; }
  #sidecar { position: absolute; z-index: 45; left: 0; height: 100%; width: min(88vw, 320px); box-shadow: var(--shadow); }
  #editor, #preview { padding: 10px 16px 100px; }
  #statusbar { gap: 8px; overflow-x: auto; }
  .first-run { align-items: flex-start; }
  .diff-cols { grid-template-columns: 1fr; }
  .provider-grid { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
  #menus [data-menu="insert"], #menus [data-menu="format"] { display: none; }
  #toolbar-standard { display: none; }
}