:root {
  --bg:      oklch(98% 0.004 240);
  --surface: oklch(100% 0 0);
  --fg:      oklch(20% 0.02 240);
  --muted:   oklch(50% 0.018 240);
  --border:  oklch(90% 0.006 240);
  --accent:  oklch(56% 0.12 170);
  --on-accent: oklch(100% 0 0);

  /* issue colours: spelling = danger, grammar & style = warn */
  --ok:     oklch(58% 0.12 158);
  --warn:   oklch(64% 0.13 70);
  --danger: oklch(57% 0.16 25);

  --accent-soft: color-mix(in oklch, var(--accent) 12%, transparent);
  --accent-ink:  color-mix(in oklch, var(--accent) 72%, var(--fg));
  --fg-soft:     color-mix(in oklch, var(--fg) 6%, transparent);
  --fg-softer:   color-mix(in oklch, var(--fg) 3%, transparent);
  --shadow: 0 1px 2px color-mix(in oklch, var(--fg) 6%, transparent), 0 12px 32px color-mix(in oklch, var(--fg) 10%, transparent);

  --font-display: 'Iowan Old Style', 'Charter', Georgia, 'Times New Roman', serif;
  --font-body:    'Segoe UI Variable Text', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono:    ui-monospace, 'SF Mono', 'Cascadia Mono', Menlo, Consolas, monospace;

  --radius: 10px;
  --radius-lg: 16px;
  --assistant-w: 404px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:      oklch(17% 0.01 240);
    --surface: oklch(21% 0.012 240);
    --fg:      oklch(93% 0.006 240);
    --muted:   oklch(70% 0.014 240);
    --border:  oklch(30% 0.012 240);
    --accent:  oklch(70% 0.12 170);
    --on-accent: oklch(17% 0.01 240);
    --ok:     oklch(72% 0.13 158);
    --warn:   oklch(78% 0.13 75);
    --danger: oklch(70% 0.15 25);
    --accent-ink: color-mix(in oklch, var(--accent) 85%, var(--fg));
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg:      oklch(17% 0.01 240);
  --surface: oklch(21% 0.012 240);
  --fg:      oklch(93% 0.006 240);
  --muted:   oklch(70% 0.014 240);
  --border:  oklch(30% 0.012 240);
  --accent:  oklch(70% 0.12 170);
  --on-accent: oklch(17% 0.01 240);
  --ok:     oklch(72% 0.13 158);
  --warn:   oklch(78% 0.13 75);
  --danger: oklch(70% 0.15 25);
  --accent-ink: color-mix(in oklch, var(--accent) 85%, var(--fg));
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
html, body { height: 100%; }
.session-loading body { visibility: hidden; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
svg { display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
select { font: inherit; color: inherit; }
p { text-wrap: pretty; margin: 0; }
h1, h2, h3 { text-wrap: balance; margin: 0; }
.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.spacer { flex: 1; }

:where(button, a, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ── buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 15px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 14px; font-weight: 500;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.05s ease;
  white-space: nowrap;
}
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn-primary:hover:not(:disabled) { background: color-mix(in oklch, var(--accent) 86%, black); }
.btn-secondary { background: var(--surface); color: var(--fg); border-color: var(--border); }
.btn-secondary:hover:not(:disabled) { border-color: var(--fg); }
.btn-ghost { background: transparent; color: var(--fg); padding-inline: 9px; }
.btn-ghost:hover:not(:disabled) { background: var(--fg-soft); }
.btn-xs { padding: 6px 11px; font-size: 13px; border-radius: 8px; }
.btn-sm { padding: 7px 13px; font-size: 13.5px; }
.btn-block { width: 100%; margin-top: 18px; padding-block: 11px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn .spin {
  width: 14px; height: 14px; border-radius: 999px;
  border: 2px solid currentColor; border-right-color: transparent;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.icon-btn {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  border-radius: 9px; border: 1px solid transparent;
  background: transparent; color: var(--muted);
  transition: background 0.15s ease, color 0.15s ease;
}
.icon-btn:hover { background: var(--fg-soft); color: var(--fg); }
.icon-btn svg, .tab svg, .assistant-foot svg, .empty svg, .card-actions svg {
  fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round;
}
.icon-btn svg { width: 18px; height: 18px; }

/* ── app shell ───────────────────────────────────────── */
.app { display: flex; flex-direction: column; height: 100vh; height: 100dvh; overflow: hidden; }

.appbar {
  flex: none;
  display: flex; align-items: center; gap: 16px;
  padding: 0 16px; height: 58px;
  background: color-mix(in oklch, var(--surface) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: relative; z-index: 20;
}
.appbar-left { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand { display: flex; align-items: center; gap: 9px; font-size: 18px; letter-spacing: -0.01em; white-space: nowrap; }
.brand-name b { color: var(--accent-ink); font-weight: 700; }
.logo { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; background: var(--accent); }
.logo svg { width: 28px; height: 28px; fill: none; stroke: var(--on-accent); stroke-width: 3.2; stroke-linecap: round; stroke-linejoin: round; }
.crumb { color: var(--border); font-size: 18px; }
.doc-title {
  border: 1px solid transparent; background: transparent; color: var(--fg);
  font: inherit; font-weight: 500; font-size: 14px;
  padding: 5px 9px; border-radius: 8px; width: 240px; min-width: 0;
  text-overflow: ellipsis;
}
.doc-title:hover { background: var(--fg-soft); }
.doc-title:focus { background: var(--surface); border-color: var(--border); outline: none; }

.appbar-mid { margin-inline: auto; display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); white-space: nowrap; }
.saved-dot { width: 6px; height: 6px; border-radius: 999px; background: var(--ok); transition: background 0.2s ease; }
.saved-dot.saving { background: var(--warn); }
.appbar-right { display: flex; align-items: center; gap: 10px; margin-left: auto; }

.quota {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 11px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent-ink);
  font-size: 12.5px; font-weight: 500; white-space: nowrap;
}
.quota:empty { display: none; }
.quota:hover { background: color-mix(in oklch, var(--accent) 20%, transparent); }
.quota.low { background: color-mix(in oklch, var(--danger) 12%, transparent); color: var(--danger); }

.guest-actions { display: flex; align-items: center; gap: 6px; }
.lock-banner {
  margin-bottom: 14px; padding: 12px 14px; border-radius: var(--radius);
  background: var(--accent-soft); border: 1px solid color-mix(in oklch, var(--accent) 35%, transparent);
  font-size: 13px; color: var(--fg);
}
.lock-banner b { font-weight: 600; }
.lock-actions { display: flex; gap: 6px; margin-top: 10px; }
.menu-wrap { position: relative; }

/* sign-in prompt for guests */
.modal {
  width: min(420px, calc(100vw - 32px)); padding: 30px 28px 24px;
  border: 1px solid var(--border); border-radius: 20px;
  background: var(--surface); color: var(--fg);
  box-shadow: var(--shadow); text-align: center;
}
.modal::backdrop { background: color-mix(in oklch, var(--fg) 35%, transparent); backdrop-filter: blur(2px); }
.modal[open] { animation: rise 0.2s ease; }
.modal-art { width: 52px; height: 52px; margin: 0 auto 14px; display: grid; place-items: center; border-radius: 16px; background: var(--accent-soft); color: var(--accent-ink); }
.modal-art svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linejoin: round; }
.modal h2 { font-family: var(--font-display); font-size: 22px; font-weight: 600; margin-bottom: 8px; }
.modal p { font-size: 14px; color: var(--muted); }
.modal .modal-note { font-size: 12.5px; margin-top: 8px; }
.modal-actions { display: flex; flex-direction: column; gap: 8px; margin-top: 20px; }
.modal-close { position: absolute; top: 12px; right: 12px; display: grid; place-items: center; width: 30px; height: 30px; border: 0; border-radius: 8px; background: transparent; color: var(--muted); }
.modal-close:hover { background: var(--fg-soft); color: var(--fg); }
.modal-close svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.avatar {
  width: 32px; height: 32px; border-radius: 999px; border: 0;
  display: grid; place-items: center;
  background: var(--fg); color: var(--surface);
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.02em;
}
.avatar:hover { box-shadow: 0 0 0 3px var(--fg-soft); }
.menu {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 40;
  min-width: 230px; padding: 6px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: var(--shadow);
}
.menu-head { padding: 9px 10px 10px; border-bottom: 1px solid var(--border); margin-bottom: 4px; }
.menu-head strong { display: block; font-size: 14px; font-weight: 600; }
.menu-head span { display: block; font-size: 12.5px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; }
.menu a, .menu button {
  display: block; width: 100%; text-align: left;
  padding: 8px 10px; border: 0; border-radius: 8px; background: transparent;
  font-size: 13.5px;
}
.menu a:hover, .menu button:hover { background: var(--fg-soft); }
.menu button { color: var(--danger); }

/* ── workspace ───────────────────────────────────────── */
.workspace {
  flex: 1; min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--assistant-w);
}
.workspace > * { min-height: 0; }

/* editor column */
.editor-col { overflow-y: auto; background: var(--bg); }
.editor-inner { padding: 20px 32px 24px; }
.editor-kicker { display: flex; align-items: center; gap: 6px; margin-bottom: 18px; min-height: 34px; }
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 4px 10px; border-radius: 999px;
  background: var(--fg-soft); color: var(--muted);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase;
  white-space: nowrap;
}
.pill--ai { background: var(--accent-soft); color: var(--accent-ink); }
.pill .pulse { width: 6px; height: 6px; border-radius: 999px; background: currentColor; }
.pill.busy .pulse { animation: pulse 1s ease-in-out infinite; }
.pill.error { background: color-mix(in oklch, var(--danger) 12%, transparent); color: var(--danger); }
@keyframes pulse { 50% { opacity: 0.25; } }

.editor-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 30px 30px;
  box-shadow: 0 1px 2px color-mix(in oklch, var(--fg) 5%, transparent), 0 6px 22px color-mix(in oklch, var(--fg) 6%, transparent);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  cursor: text;
}
.editor-card:focus-within {
  border-color: color-mix(in oklch, var(--accent) 45%, var(--border));
  box-shadow: 0 0 0 3px var(--accent-soft), 0 6px 22px color-mix(in oklch, var(--fg) 7%, transparent);
}
.editor-surface { position: relative; }

/* suggestion popover next to an underlined word */
.popover {
  position: absolute; z-index: 5;
  width: 320px; max-width: 100%;
  padding: 12px 14px 10px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: var(--shadow);
  cursor: default;
  animation: rise 0.15s ease;
}
.pop-head { display: flex; align-items: center; gap: 8px; margin-bottom: 7px; }
.pop-cat { flex: 1; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); }
.pop-close { display: grid; place-items: center; width: 24px; height: 24px; margin: -4px -6px -4px 0; border: 0; border-radius: 7px; background: transparent; color: var(--muted); }
.pop-close:hover { background: var(--fg-soft); color: var(--fg); }
.pop-close svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.popover .card-msg { font-size: 13.5px; }
.popover .suggestions button { font-size: 14px; padding: 6px 12px; }

/* tone and summary results under the editor */
.results { display: flex; flex-direction: column; gap: 14px; }
.results > div:empty { display: none; }
.results .result { margin-top: 18px; background: var(--surface); box-shadow: 0 1px 2px color-mix(in oklch, var(--fg) 5%, transparent); }
.results .result-body { font-size: 16px; line-height: 1.75; max-height: none; padding: 16px 18px; }
.results .result-actions { padding: 0 18px 16px; }
.results .result-head { padding: 8px 10px 8px 18px; }
.result-close { width: 28px; height: 28px; }
.result-close svg { width: 15px; height: 15px; }
.backdrop, #editor {
  font-family: var(--font-body);
  font-size: 17px; line-height: 1.85; letter-spacing: 0;
  padding: 0; margin: 0; border: 0;
  white-space: pre-wrap; overflow-wrap: break-word; word-break: normal;
  tab-size: 4;
}
.backdrop { position: absolute; inset: 0; color: transparent; pointer-events: none; }
#editor {
  position: relative; z-index: 1; display: block; width: 100%;
  /* Fill the screen: viewport minus top bar, toolbar, card padding and stats row. */
  min-height: max(240px, calc(100vh - 294px));
  min-height: max(240px, calc(100dvh - 294px));
  background: transparent;
  color: var(--fg); caret-color: var(--fg);
  resize: none; outline: none; overflow: hidden;
}
#editor::placeholder { color: var(--muted); }
#editor::selection { background: color-mix(in oklch, var(--accent) 26%, transparent); }

.backdrop mark { color: transparent; border-radius: 3px; padding-bottom: 1px; border-bottom: 2px solid; }
.backdrop mark.spelling { background: color-mix(in oklch, var(--danger) 11%, transparent); border-color: var(--danger); }
.backdrop mark.grammar  { background: color-mix(in oklch, var(--warn) 15%, transparent); border-color: var(--warn); }
.backdrop mark.active   { box-shadow: 0 0 0 3px color-mix(in oklch, var(--accent) 28%, transparent); }

.stats-strip {
  display: flex; flex-wrap: wrap; gap: 14px 28px;
  margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border);
}
.stats-strip div { display: flex; flex-direction: column; gap: 2px; }
.stats-strip b { font-family: var(--font-display); font-size: 22px; font-weight: 600; line-height: 1.15; }
.stats-strip b.num { font-family: var(--font-mono); font-size: 20px; }
.stats-strip span { font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); font-family: var(--font-mono); }

/* ── assistant panel ─────────────────────────────────── */
.assistant { border-left: 1px solid var(--border); background: var(--surface); display: flex; flex-direction: column; overflow: hidden; }
.tabs { display: flex; gap: 2px; padding: 8px 12px 0; border-bottom: 1px solid var(--border); flex: none; }
.tab {
  position: relative; background: transparent; border: 0;
  padding: 10px 11px 12px; font-size: 14px; font-weight: 500; color: var(--muted);
  display: inline-flex; align-items: center; gap: 7px;
  transition: color 0.15s ease;
}
.tab svg { width: 16px; height: 16px; }
.tab:hover { color: var(--fg); }
.tab[aria-selected="true"] { color: var(--fg); }
.tab[aria-selected="true"]::after {
  content: ''; position: absolute; left: 8px; right: 8px; bottom: -1px;
  height: 2px; background: var(--accent); border-radius: 2px;
}
.tab .count {
  font-family: var(--font-mono); font-size: 11px;
  background: var(--fg-soft); color: var(--muted);
  border-radius: 999px; padding: 1px 7px; min-width: 22px; text-align: center;
}
.tab[aria-selected="true"] .count { background: var(--accent-soft); color: var(--accent-ink); }

.panel { flex: 1; overflow-y: auto; padding: 18px 18px 24px; }
.panel-intro { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.intro-text { flex: 1; min-width: 0; }
.panel-intro h2 { font-family: var(--font-display); font-size: 21px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.2; }
.panel-intro p { font-size: 13px; color: var(--muted); margin-top: 3px; }
.status.checking { color: var(--accent-ink); }
.status.error, .panel-status.error { color: var(--danger); }

.section-label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--muted); font-weight: 500; margin: 18px 0 9px;
}

/* score ring */
.score { position: relative; width: 46px; height: 46px; flex: none; display: grid; place-items: center; }
.score svg { position: absolute; inset: 0; width: 46px; height: 46px; transform: rotate(-90deg); }
.score circle { fill: none; stroke-width: 3.5; }
.score .ring-bg { stroke: var(--fg-soft); }
.score .ring { stroke: var(--ok); stroke-linecap: round; stroke-dasharray: 119.4; stroke-dashoffset: 119.4; transition: stroke-dashoffset 0.5s ease, stroke 0.3s ease; }
.score.mid .ring { stroke: var(--warn); }
.score.low .ring { stroke: var(--danger); }
.score span { font-family: var(--font-mono); font-size: 14px; font-weight: 600; }

/* form controls */
.settings-row { display: flex; align-items: flex-end; gap: 12px; margin-bottom: 14px; }
.field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.field--grow { flex: 1; }
.field > span { font-size: 12px; color: var(--muted); font-weight: 500; }
.field select {
  width: 100%; height: 36px; padding: 0 30px 0 11px;
  border: 1px solid var(--border); border-radius: 9px;
  background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23889' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 9px center / 14px;
  appearance: none; cursor: pointer; font-size: 13.5px;
  text-overflow: ellipsis;
}
.field select:hover { border-color: color-mix(in oklch, var(--fg) 30%, var(--border)); }
.field--spaced { margin-top: 18px; }

.switch { display: inline-flex; align-items: center; gap: 8px; height: 36px; font-size: 13px; color: var(--muted); cursor: pointer; user-select: none; }
.switch input { position: absolute; opacity: 0; pointer-events: none; }
.switch .track { position: relative; width: 32px; height: 18px; border-radius: 999px; background: var(--border); transition: background 0.15s ease; }
.switch .thumb { position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 999px; background: var(--surface); box-shadow: 0 1px 2px rgb(0 0 0 / 0.2); transition: transform 0.15s ease; }
.switch input:checked + .track { background: var(--accent); }
.switch input:checked + .track .thumb { transform: translateX(14px); }
.switch input:focus-visible + .track { outline: 2px solid var(--accent); outline-offset: 2px; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  border-radius: 999px; padding: 5px 11px; font-size: 12.5px;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.chip:hover { border-color: var(--fg); color: var(--fg); }
.chip[aria-pressed="true"] { background: var(--fg); border-color: var(--fg); color: var(--surface); }
.chip-count { font-family: var(--font-mono); font-size: 11px; opacity: 0.75; }
.dot { width: 7px; height: 7px; border-radius: 999px; flex: none; display: inline-block; }
.dot.spelling { background: var(--danger); }
.dot.grammar { background: var(--warn); }

.seg { display: flex; background: var(--fg-soft); border-radius: 999px; padding: 3px; gap: 2px; }
.seg button {
  flex: 1; border: 0; background: transparent; color: var(--muted);
  padding: 7px 10px; border-radius: 999px; font-size: 13px; font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease;
}
.seg button:hover:not(:disabled) { color: var(--fg); }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--fg); box-shadow: 0 1px 2px color-mix(in oklch, var(--fg) 14%, transparent); }
.seg button:disabled { opacity: 0.4; cursor: not-allowed; }

/* scope ("what will be sent") */
.scope {
  display: flex; align-items: center; gap: 9px;
  padding: 10px 12px; border-radius: var(--radius);
  background: var(--fg-softer); border: 1px dashed var(--border);
  font-size: 13px; color: var(--muted);
}
.scope b { color: var(--fg); font-weight: 600; }
.scope.selection { background: var(--accent-soft); border-color: color-mix(in oklch, var(--accent) 40%, transparent); color: var(--accent-ink); }
.scope.selection b { color: inherit; }
.scope.over { background: color-mix(in oklch, var(--danger) 9%, transparent); border-color: color-mix(in oklch, var(--danger) 35%, transparent); color: var(--danger); }
.scope svg { width: 16px; height: 16px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

/* issue cards */
.issue-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { border-color: color-mix(in oklch, var(--fg) 26%, var(--border)); }
.card.active { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.card-head {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 11px 13px; border: 0; background: transparent; text-align: left;
  border-radius: 14px;
}
.card-head .dot { width: 8px; height: 8px; }
.card.spelling .card-head .dot { background: var(--danger); }
.card.grammar .card-head .dot { background: var(--warn); }
.preview { flex: 1; min-width: 0; font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.preview .word { color: var(--muted); }
.preview .word.has-fix { text-decoration: line-through; text-decoration-color: color-mix(in oklch, var(--danger) 70%, transparent); }
.preview .sep { color: var(--muted); margin: 0 6px; }
.preview .fix { font-weight: 600; color: var(--fg); }
.card-head .cat { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); flex: none; max-width: 110px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-body { padding: 0 13px 13px 31px; }
.card-msg { font-size: 13.5px; line-height: 1.55; margin-bottom: 10px; }
.suggestions { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.suggestions button {
  border: 1px solid var(--accent); background: var(--accent); color: var(--on-accent);
  padding: 5px 11px; border-radius: 8px; font-size: 13px; font-weight: 500;
}
.suggestions button + button { background: var(--surface); color: var(--accent-ink); border-color: color-mix(in oklch, var(--accent) 45%, var(--border)); }
.suggestions button:hover { filter: brightness(0.95); }
.card-actions { display: flex; gap: 4px; margin-left: -8px; }
.card-actions button {
  display: inline-flex; align-items: center; gap: 6px;
  border: 0; background: transparent; color: var(--muted);
  padding: 5px 8px; border-radius: 7px; font-size: 12.5px;
}
.card-actions button:hover { background: var(--fg-soft); color: var(--fg); }
.card-actions svg { width: 14px; height: 14px; }

.empty { text-align: center; padding: 34px 10px 10px; color: var(--muted); font-size: 13.5px; }
.empty .art {
  width: 60px; height: 60px; margin: 0 auto 14px;
  display: grid; place-items: center; border-radius: 18px;
  background: var(--accent-soft); color: var(--accent-ink);
}
.empty .art svg { width: 26px; height: 26px; }
.empty h3 { font-family: var(--font-display); font-size: 18px; font-weight: 600; color: var(--fg); margin-bottom: 6px; }
.empty p { max-width: 30ch; margin: 0 auto; }
.empty .btn { margin-top: 16px; }

/* tone */
.tone-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.tone-card {
  display: flex; align-items: center; gap: 7px;
  border: 1px solid var(--border); background: var(--surface); border-radius: 11px;
  padding: 8px 9px; text-align: left; font-size: 13px; font-weight: 500;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  min-width: 0;
}
.tone-card span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tone-card:hover { border-color: color-mix(in oklch, var(--fg) 28%, var(--border)); }
.tone-card[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 0 0 2px var(--accent-soft); }
.more-btn { border: 0; background: transparent; color: var(--accent-ink); font-size: 13px; font-weight: 500; padding: 8px 2px 0; }
.more-btn:hover { text-decoration: underline; }
.tone-desc { font-size: 12.5px; color: var(--muted); margin-top: 6px; }
.tone-desc b { color: var(--fg); font-weight: 600; }

.panel-status { font-size: 12.5px; color: var(--muted); margin-top: 10px; min-height: 1em; }
.panel-status:empty { display: none; }

/* results */
.result {
  margin-top: 16px;
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  background: var(--bg); overflow: hidden;
  animation: rise 0.25s ease;
}
@keyframes rise { from { opacity: 0; transform: translateY(4px); } }
.result-head {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-bottom: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted);
}
.result-head .spacer + span { text-transform: none; letter-spacing: 0; }
.result-body { padding: 14px; font-size: 14.5px; line-height: 1.65; max-height: 420px; overflow-y: auto; white-space: pre-wrap; overflow-wrap: break-word; }
.result-body.list { white-space: normal; }
.result-body ul { margin: 0; padding-left: 18px; display: flex; flex-direction: column; gap: 7px; }
.result-body del { color: var(--danger); text-decoration-thickness: 1px; background: color-mix(in oklch, var(--danger) 8%, transparent); border-radius: 3px; }
.result-body ins { color: var(--ok); text-decoration: none; background: color-mix(in oklch, var(--ok) 13%, transparent); border-radius: 3px; }
.result-body.plain del { display: none; }
.result-body.plain ins { color: inherit; background: none; }
.result-actions { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 14px 14px; }
.result-actions .spacer { min-width: 0; }
.view-toggle { font-family: var(--font-body); text-transform: none; letter-spacing: 0; color: var(--muted); }
.view-toggle[aria-pressed="true"] { background: var(--fg-soft); color: var(--fg); }

.assistant-foot {
  flex: none; display: flex; gap: 8px; align-items: flex-start;
  padding: 11px 18px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--muted);
}
.assistant-foot svg { width: 14px; height: 14px; flex: none; margin-top: 2px; }
.assistant-foot a { color: var(--accent-ink); }
.assistant-foot a:hover { text-decoration: underline; }
.foot-links {
  flex: none; display: flex; flex-wrap: wrap; gap: 4px 14px;
  padding: 0 18px 11px 40px; font-size: 12px;
}
.foot-links a { color: var(--muted); }
.foot-links a:hover { color: var(--fg); text-decoration: underline; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 50;
  padding: 9px 16px; border-radius: 10px;
  background: var(--fg); color: var(--bg); font-size: 13px;
  box-shadow: var(--shadow);
  animation: rise 0.2s ease;
}

/* ── responsive ──────────────────────────────────────── */
@media (max-width: 1100px) {
  :root { --assistant-w: 372px; }
  .editor-inner { padding-inline: 20px; }
  .doc-title { width: 180px; }
}
@media (max-width: 880px) {
  .app { height: auto; overflow: visible; }
  .appbar { position: sticky; top: 0; }
  .appbar-mid, .crumb, .doc-title { display: none; }
  .workspace { grid-template-columns: 1fr; }
  .editor-col { overflow: visible; }
  .editor-inner { padding: 20px 16px 36px; }
  #editor { min-height: 34vh; }
  .editor-card { padding: 18px 16px 20px; }
  .popover { width: 100%; }
  .assistant { border-left: 0; border-top: 1px solid var(--border); overflow: visible; }
  .panel { overflow: visible; padding-inline: 16px; }
  .tabs { position: sticky; top: 58px; z-index: 10; background: var(--surface); padding-inline: 8px; }
}
@media (max-width: 420px) {
  .tone-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .brand-name { display: none; }
  .guest-actions .btn-ghost { display: none; }
}
@media (max-width: 560px) {
  .appbar-right .quota:not(:empty) { max-width: 120px; overflow: hidden; text-overflow: ellipsis; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}