:root, [data-theme="dark"] {
  color-scheme: dark;
  --bg: #0c0d10;
  --bg-elevated: #14161c;
  --bg-soft: #1a1d26;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f2f3f5;
  --text-heading: #ffffff;
  --text-muted: #9aa3b2;
  --text-faint: #6b7280;
  --accent: #7c8cff;
  --accent-strong: #6b7bff;
  --accent-soft: rgba(124, 140, 255, 0.14);
  --danger: #f87171;
  --danger-bg: rgba(248, 113, 113, 0.1);
  --danger-border: rgba(248, 113, 113, 0.3);
  --danger-text: #fecaca;
  --warn-bg: rgba(251, 191, 36, 0.1);
  --warn-border: rgba(251, 191, 36, 0.35);
  --warn-text: #fbbf24;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --radius: 14px;
  --radius-pill: 999px;
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --doc-width: 42rem;
  --comment-width: 20rem;
  --workspace-gap: 2rem;
  --workspace-width: 66rem;
  --chrome-max: 56rem;

  --agent-strip-bg: rgba(255, 255, 255, 0.02);
  --btn-primary-bg: #ffffff;
  --btn-primary-text: #111111;
  --btn-primary-hover: #eef0f5;
  --btn-secondary-hover-bg: rgba(255, 255, 255, 0.06);
  --btn-secondary-hover-border: rgba(255, 255, 255, 0.22);
  --topbar-bg: rgba(20, 22, 28, 0.92);
  --tb-hover-bg: rgba(255, 255, 255, 0.06);
  --tb-active-text: #c7ceff;
  --link-color: #8ec8ff;
  --link-hover: #b6dcff;
  --code-inline-bg: rgba(255, 255, 255, 0.08);
  --code-inline-text: #e2e8ff;
  --code-block-bg: #14161c;
  --code-block-text: #e8ecf5;
  --table-th-bg: rgba(255, 255, 255, 0.06);
  --table-td-bg: rgba(255, 255, 255, 0.02);
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f8fafc;
  --bg-elevated: #ffffff;
  --bg-soft: #f1f5f9;
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.16);
  --text: #0f172a;
  --text-heading: #020617;
  --text-muted: #475569;
  --text-faint: #64748b;
  --accent: #4f46e5;
  --accent-strong: #4338ca;
  --accent-soft: rgba(79, 70, 229, 0.12);
  --danger: #dc2626;
  --danger-bg: rgba(220, 38, 38, 0.08);
  --danger-border: rgba(220, 38, 38, 0.25);
  --danger-text: #991b1b;
  --warn-bg: rgba(217, 119, 6, 0.1);
  --warn-border: rgba(217, 119, 6, 0.3);
  --warn-text: #b45309;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);

  --agent-strip-bg: rgba(15, 23, 42, 0.03);
  --btn-primary-bg: #0f172a;
  --btn-primary-text: #ffffff;
  --btn-primary-hover: #1e293b;
  --btn-secondary-hover-bg: rgba(15, 23, 42, 0.05);
  --btn-secondary-hover-border: rgba(15, 23, 42, 0.25);
  --topbar-bg: rgba(255, 255, 255, 0.88);
  --tb-hover-bg: rgba(15, 23, 42, 0.06);
  --tb-active-text: #3730a3;
  --link-color: #2563eb;
  --link-hover: #1d4ed8;
  --code-inline-bg: rgba(15, 23, 42, 0.06);
  --code-inline-text: #1e293b;
  --code-block-bg: #f1f5f9;
  --code-block-text: #0f172a;
  --table-th-bg: rgba(15, 23, 42, 0.05);
  --table-td-bg: rgba(15, 23, 42, 0.015);
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

button, input, textarea, select {
  font: inherit;
}

/* ——— Landing / create ——— */

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

.agent-strip {
  border-bottom: 1px solid var(--border);
  background: var(--agent-strip-bg);
  padding: 0.55rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.theme-toggle {
  appearance: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: var(--radius-pill);
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  flex-shrink: 0;
}
.theme-toggle:hover {
  background: var(--btn-secondary-hover-bg);
  color: var(--text);
  border-color: var(--border-strong);
}

.agent-strip a { font-weight: 500; }
.agent-strip code {
  font-family: var(--mono);
  font-size: 0.78rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.1rem 0.35rem;
  color: var(--text);
}

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.25rem 4rem;
  text-align: center;
}

.beta-badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--warn-border);
  border-radius: var(--radius-pill);
  background: var(--warn-bg);
  color: var(--warn-text);
  padding: 0.3rem 0.7rem;
  margin-bottom: 1rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-mark {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-weight: 600;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 650;
  color: var(--text-heading);
  margin: 0 0 1rem;
  max-width: 14ch;
}

.hero-lead {
  max-width: 36rem;
  color: var(--text-muted);
  font-size: 1.08rem;
  margin: 0 0 0.5rem;
}

.hero-sub {
  max-width: 32rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0 0 2rem;
}

.beta-paths {
  width: min(100%, 58rem);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 0.5rem;
  text-align: left;
}

.path-card {
  min-width: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  padding: 1.3rem;
  box-shadow: var(--shadow);
}

.path-card-waitlist {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
}

.path-eyebrow {
  margin: 0 0 0.3rem;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.path-card h2 {
  margin: 0;
  color: var(--text-heading);
  font-size: 1.2rem;
}

.path-copy {
  min-height: 2.8rem;
  margin: 0.35rem 0 1rem;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.path-card label {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--text-muted);
  font-size: 0.8rem;
}

#waitlistMsg {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
}

.path-card .hint { color: var(--text-muted); }
#waitlistMsg.success { color: #34d399; }
#waitlistMsg.error { color: var(--danger); }

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 0.7rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.12s ease, border-color 0.12s ease;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

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

.btn-accent {
  background: var(--accent-strong);
  color: #fff;
  border-color: var(--accent-strong);
}
.btn-accent:hover { filter: brightness(1.06); }

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  background: var(--btn-secondary-hover-bg);
  border-color: var(--btn-secondary-hover-border);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: transparent;
  padding-inline: 0.85rem;
}
.btn-ghost:hover { color: var(--text); }

.field-row {
  display: flex;
  gap: 0.5rem;
}

.field {
  flex: 1;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  color: var(--text);
  padding: 0.65rem 0.85rem;
  outline: none;
}
.field:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.hint {
  margin: 0.75rem 0 0;
  font-size: 0.82rem;
  color: var(--text-faint);
}

.split {
  width: min(100%, 52rem);
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.split-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.3rem;
  text-align: left;
}

.split-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 650;
  color: var(--text-heading);
}

.split-card p, .split-card ol {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.split-card ol {
  padding-left: 1.15rem;
  display: grid;
  gap: 0.35rem;
}

.site-footer {
  margin-top: auto;
  padding: 1.5rem 1.25rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
}
.site-footer p {
  margin: 0;
  color: var(--text-faint);
  font-size: 0.82rem;
}

.error {
  color: var(--danger);
  font-size: 0.9rem;
  margin: 0.75rem 0 0;
}

/* ——— Editor shell ——— */

.editor-app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(1200px 500px at 50% -10%, rgba(124, 140, 255, 0.08), transparent 60%),
    var(--bg);
}

.editor-chrome {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
}

.topbar-wrap {
  padding: 0.85rem 1rem 0.5rem;
  display: flex;
  justify-content: center;
}

.topbar {
  width: min(100%, var(--chrome-max));
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  background: var(--topbar-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 0.45rem 0.5rem 0.45rem 0.85rem;
  box-shadow: var(--shadow);
}

.brand {
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 0.95rem;
  color: var(--text);
  text-decoration: none;
  padding: 0.25rem 0.35rem;
}
.brand:hover { text-decoration: none; opacity: 0.9; }

.slug-chip {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  max-width: 8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar-spacer { flex: 1; min-width: 0.5rem; }

.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 0.2rem 0.55rem;
}
.status-dot::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--text-faint);
}
.status-dot[data-state="connected"]::before,
.status-dot[data-state="synced"]::before {
  background: #34d399;
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.15);
}
.status-dot[data-state="connecting"]::before {
  background: #fbbf24;
}

#presence {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
  align-items: center;
  max-width: 24rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  border-radius: var(--radius-pill);
  padding: 0.18rem 0.55rem 0.18rem 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text);
  max-width: 9rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pill::before {
  content: "";
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #93c5fd, #a78bfa);
  flex-shrink: 0;
}
.presence-jump {
  appearance: none;
  padding-inline: 0.55rem;
  background: var(--collaborator-color);
  border-color: var(--collaborator-color);
  color: var(--collaborator-ink);
  font-family: inherit;
  font-size: 80%;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.presence-jump::before {
  content: none;
}
.presence-jump:hover:not(:disabled) {
  border-color: var(--collaborator-ink);
  background: var(--collaborator-color);
  box-shadow: 0 2px 8px color-mix(in srgb, var(--collaborator-color) 45%, transparent);
  transform: translateY(-1px);
}
.presence-jump:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.pill.is-agent {
  max-width: 10rem;
  min-width: 0;
}
.agent-presence-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pill.is-agent::before {
  background: linear-gradient(135deg, #fbbf24, #f97316);
}
.pill.is-agent.has-intent {
  border-color: color-mix(in srgb, #f59e0b 45%, var(--border));
  background: color-mix(in srgb, #f59e0b 8%, var(--bg-soft));
}
.pill-empty {
  font-size: 0.75rem;
  color: var(--text-faint);
}

.name-field {
  width: 7.5rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  color: var(--text);
  padding: 0.35rem 0.65rem;
  font-size: 0.85rem;
}
.name-field:hover { border-color: var(--border); }
.name-field:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg);
}

.name-prompt {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 1.25rem;
}
.name-prompt[hidden] {
  display: none;
}
.name-prompt-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  backdrop-filter: blur(6px);
}
.name-prompt-dialog {
  position: relative;
  width: min(100%, 22rem);
  padding: 1.35rem 1.4rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
}
.name-prompt-dialog h2 {
  margin: 0;
  font-size: 1.15rem;
  color: var(--text-heading);
}
.name-prompt-copy {
  margin: 0.45rem 0 1rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.4;
}
.name-prompt-dialog label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.name-prompt-dialog input {
  width: 100%;
  margin-bottom: 0.75rem;
  padding: 0.55rem 0.7rem;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  color: var(--text);
  font: inherit;
}
.name-prompt-dialog input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.name-prompt-error {
  margin: -0.35rem 0 0.75rem;
  color: var(--danger-text);
  font-size: 0.85rem;
}
.name-prompt-dialog .btn {
  width: 100%;
}

.share-menu {
  position: relative;
  flex: 0 0 auto;
}
.share-menu-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.share-menu-chevron {
  width: 0.38rem;
  height: 0.38rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-0.12rem) rotate(45deg);
  transition: transform 0.15s ease;
}
.share-menu-trigger[aria-expanded="true"] .share-menu-chevron {
  transform: translateY(0.1rem) rotate(225deg);
}
.share-popover {
  position: absolute;
  z-index: 30;
  top: calc(100% + 0.5rem);
  right: 0;
  width: 16rem;
  max-width: calc(100vw - 2rem);
  padding: 0.35rem;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
}
.share-option {
  appearance: none;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  padding: 0.65rem 0.75rem;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}
.share-option:hover,
.share-option:focus-visible {
  background: var(--tb-hover-bg);
}
.share-option:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
.share-option-label {
  font-size: 0.84rem;
  font-weight: 650;
}
.share-option-description {
  color: var(--text-muted);
  font-size: 0.72rem;
  line-height: 1.35;
}

.toolbar-wrap {
  position: sticky;
  top: 3.8rem;
  z-index: 15;
  display: flex;
  justify-content: center;
  padding: 0.35rem 1rem 0.75rem;
  backdrop-filter: blur(10px);
}

.toolbar {
  width: min(100%, var(--chrome-max));
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: wrap;
  background: var(--topbar-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 0.3rem;
  box-shadow: var(--shadow);
}

.editor-app.has-comment-sidebar .topbar,
.editor-app.has-comment-sidebar .toolbar {
  width: min(100%, var(--workspace-width));
}

.table-tools,
.comment-tools {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
}

.block-style-control {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.block-style-control::after {
  content: "";
  position: absolute;
  right: 0.7rem;
  width: 0.38rem;
  height: 0.38rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  color: var(--text-muted);
  pointer-events: none;
  transform: translateY(-0.12rem) rotate(45deg);
}
.block-style-select {
  appearance: none;
  min-width: 7.25rem;
  height: 2rem;
  padding: 0 1.75rem 0 0.7rem;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 650;
  cursor: pointer;
}
.block-style-select:hover,
.block-style-select:focus-visible {
  background: var(--tb-hover-bg);
  color: var(--text);
}
.block-style-select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.block-style-select[data-state="mixed"] {
  color: var(--tb-active-text);
}
.block-style-select option {
  background: var(--bg-elevated);
  color: var(--text);
}

.tb-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin-right: 0.15rem;
  padding-left: 0.25rem;
}

.tb-danger {
  color: var(--danger);
}
.tb-danger:hover {
  background: var(--danger-bg);
  color: var(--danger-text);
}

.tb {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-pill);
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.65rem;
  font-size: 0.82rem;
  font-weight: 650;
  cursor: pointer;
}
.tb:hover {
  background: var(--tb-hover-bg);
  color: var(--text);
}
.tb.is-active {
  background: var(--accent-soft);
  color: var(--tb-active-text);
}
.tb svg {
  display: inline-block;
  vertical-align: middle;
  width: 0.95rem;
  height: 0.95rem;
  stroke: currentColor;
  pointer-events: none;
}
.tb-sep {
  width: 1px;
  height: 1.1rem;
  background: var(--border-strong);
  margin: 0 0.25rem;
}
.comment-toggle {
  position: relative;
}
.comment-toggle:disabled {
  cursor: default;
  opacity: 0.5;
}
.comment-count {
  position: absolute;
  top: -0.15rem;
  right: -0.1rem;
  min-width: 1rem;
  height: 1rem;
  padding: 0 0.22rem;
  border: 2px solid var(--topbar-bg);
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: #fff;
  font-size: 0.58rem;
  line-height: 0.8rem;
  text-align: center;
}

.doc-workspace {
  width: min(100%, calc(var(--doc-width) + 2rem));
  margin: 0 auto;
  display: block;
  padding: 0 1rem 3rem;
}
.editor-app.has-comment-sidebar .doc-workspace {
  width: min(100%, var(--workspace-width));
  display: grid;
  grid-template-columns: minmax(0, var(--doc-width)) minmax(17rem, var(--comment-width));
  gap: var(--workspace-gap);
  align-items: start;
}

.doc-stage {
  min-width: 0;
  display: flex;
  justify-content: center;
  padding: 0.5rem 0;
}

.doc-sheet {
  width: min(100%, var(--doc-width));
  min-height: min(70vh, 40rem);
  background: transparent;
}

#editor {
  min-height: min(70vh, 40rem);
}

#editor .ProseMirror {
  outline: none;
  min-height: min(70vh, 40rem);
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--text);
  caret-color: var(--accent);
}

.remote-cursor {
  position: relative;
  z-index: 5;
  display: inline-block;
  width: 0;
  height: 1.25em;
  margin-left: -1px;
  border-left: 2px solid var(--collaborator-color);
  vertical-align: text-bottom;
  pointer-events: none;
  user-select: none;
}

.remote-cursor-label {
  position: absolute;
  left: -2px;
  bottom: calc(100% + 0.15rem);
  display: inline-flex;
  align-items: center;
  max-width: 8rem;
  height: 1.2rem;
  padding: 0.1rem 0.4rem;
  overflow: hidden;
  border-radius: var(--radius-pill);
  background: var(--collaborator-color);
  color: var(--collaborator-ink);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.24);
  font-family: var(--font);
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.remote-selection {
  border-radius: 0.16em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  pointer-events: none;
}

#editor .ProseMirror p {
  margin: 0.55rem 0;
}

#editor .ProseMirror h1 {
  font-size: 1.85rem;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--text-heading);
  margin: 1.4rem 0 0.6rem;
  font-weight: 700;
}

#editor .ProseMirror h2 {
  font-size: 1.35rem;
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--text-heading);
  margin: 1.2rem 0 0.5rem;
  font-weight: 650;
}

#editor .ProseMirror h3 {
  font-size: 1.15rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--text-heading);
  margin: 1rem 0 0.45rem;
  font-weight: 650;
}

#editor .ProseMirror h4 {
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--text-heading);
  margin: 0.9rem 0 0.4rem;
  font-weight: 650;
}

#editor .ProseMirror h5 {
  font-size: 0.95rem;
  line-height: 1.45;
  letter-spacing: 0.025em;
  color: var(--text-heading);
  margin: 0.85rem 0 0.35rem;
  font-weight: 700;
}

.comment-anchor {
  border-bottom: 2px solid color-mix(in srgb, var(--accent) 72%, transparent);
  border-radius: 0.12em;
  background: color-mix(in srgb, var(--accent) 13%, transparent);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  cursor: pointer;
}
.comment-anchor:hover,
.comment-anchor.is-targeted {
  background: color-mix(in srgb, var(--accent) 26%, transparent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

@media (max-width: 40rem) {
  .remote-cursor-label {
    max-width: 6rem;
  }
}

#editor .ProseMirror ul,
#editor .ProseMirror ol {
  margin: 0.55rem 0;
  padding-left: 1.6rem;
}

#editor .ProseMirror ul {
  list-style: disc;
}

#editor .ProseMirror ol {
  list-style: decimal;
}

#editor .ProseMirror ul.task-list,
#editor .ProseMirror ul[data-type="task_list"] {
  list-style: none;
  padding-left: 0.2rem;
}

#editor .ProseMirror li {
  margin: 0.2rem 0;
  display: list-item;
}

#editor .ProseMirror li.task-item,
#editor .ProseMirror li[data-type="task_item"] {
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  margin: 0.25rem 0;
  position: relative;
}

#editor .ProseMirror li.task-item .task-checkbox-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 1.55em;
  user-select: none;
  flex-shrink: 0;
}

#editor .ProseMirror li.task-item input[type="checkbox"].task-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 1.15rem;
  height: 1.15rem;
  border: 1.5px solid var(--border-strong);
  border-radius: 4px;
  background: var(--bg-elevated);
  cursor: pointer;
  outline: none;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  display: inline-grid;
  place-content: center;
  margin: 0;
}

#editor .ProseMirror li.task-item input[type="checkbox"].task-checkbox:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

#editor .ProseMirror li.task-item input[type="checkbox"].task-checkbox:checked,
#editor .ProseMirror li.task-item[data-checked="true"] input[type="checkbox"].task-checkbox {
  background: var(--accent);
  border-color: var(--accent);
}

#editor .ProseMirror li.task-item input[type="checkbox"].task-checkbox:checked::after,
#editor .ProseMirror li.task-item[data-checked="true"] input[type="checkbox"].task-checkbox::after {
  content: "";
  width: 0.35rem;
  height: 0.6rem;
  border: solid #ffffff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) translate(-0.5px, -0.5px);
}

#editor .ProseMirror li.task-item .task-content {
  flex: 1;
  min-width: 0;
}

#editor .ProseMirror li.task-item .task-content > p {
  margin: 0;
}

#editor .ProseMirror li.task-item[data-checked="true"] > .task-content,
#editor .ProseMirror li.task-item.is-checked > .task-content {
  text-decoration: line-through;
  color: var(--text-muted);
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

#editor .ProseMirror li > p {
  margin: 0.15rem 0;
}

#editor .ProseMirror li > ul,
#editor .ProseMirror li > ol {
  margin: 0.25rem 0 0.35rem;
}

#editor .ProseMirror blockquote {
  margin: 0.85rem 0;
  padding: 0.65rem 1.1rem;
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  background: var(--bg-soft);
  color: var(--text-muted);
  font-style: italic;
  transition: background 0.15s ease, border-color 0.15s ease;
}

#editor .ProseMirror blockquote p {
  margin: 0.35rem 0;
}

#editor .ProseMirror blockquote p:first-child {
  margin-top: 0;
}

#editor .ProseMirror blockquote p:last-child {
  margin-bottom: 0;
}

#editor .ProseMirror blockquote strong {
  color: var(--text-heading);
  font-style: normal;
}

#editor .ProseMirror blockquote code {
  font-style: normal;
}

#editor .ProseMirror blockquote a {
  color: var(--link-color);
  font-style: normal;
}

#editor .ProseMirror pre,
#editor .ProseMirror code {
  font-family: var(--mono);
}

#editor .ProseMirror strong {
  font-weight: 700;
  color: var(--text-heading);
}

#editor .ProseMirror a {
  color: var(--link-color);
  text-decoration: underline;
  text-underline-offset: 0.15em;
  cursor: pointer;
}

#editor .ProseMirror a:hover {
  color: var(--link-hover);
}

#editor .ProseMirror em {
  font-style: italic;
  color: var(--text);
}

#editor .ProseMirror code {
  font-size: 0.9em;
  background: var(--code-inline-bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.12em 0.4em;
  color: var(--code-inline-text);
}

#editor .ProseMirror hr {
  border: none;
  border-top: 1px solid var(--border-strong);
  margin: 1.4rem 0;
}

#editor .ProseMirror table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.25rem;
  font-size: 0.92rem;
  display: block;
  overflow-x: auto;
}

#editor .ProseMirror th,
#editor .ProseMirror td {
  border: 1px solid var(--border-strong);
  padding: 0.55rem 0.75rem;
  vertical-align: top;
  min-width: 5.5rem;
}

#editor .ProseMirror th {
  background: var(--table-th-bg);
  font-weight: 650;
  text-align: left;
  color: var(--text-heading);
}

#editor .ProseMirror td {
  background: var(--table-td-bg);
}

#editor .ProseMirror th > p,
#editor .ProseMirror td > p {
  margin: 0.15rem 0;
}

/* Fenced code: keep ASCII diagrams aligned; scroll instead of wrap */
#editor .ProseMirror pre {
  background: var(--code-block-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  margin: 0.9rem 0 1.1rem;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  white-space: pre;
  word-break: normal;
  overflow-wrap: normal;
  tab-size: 2;
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--code-block-text);
  -webkit-overflow-scrolling: touch;
}

#editor .ProseMirror pre code {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  white-space: inherit;
}

#editor .ProseMirror p.is-editor-empty:first-child::before,
#editor .ProseMirror .is-empty::before {
  color: var(--text-faint);
  content: attr(data-placeholder);
  float: left;
  height: 0;
  pointer-events: none;
  font-style: italic;
}

/* Placeholder via decoration class from JS if needed */
#editor .ProseMirror-focused p.is-empty:first-child::before,
#editor.placeholder-on .ProseMirror > p:only-child:empty::before,
#editor.show-placeholder .ProseMirror p:first-child::before {
  content: "Start writing, or let your agent take the first draft…";
  color: var(--text-faint);
  font-style: italic;
  pointer-events: none;
  float: left;
  height: 0;
}

.comments-sidebar {
  position: relative;
  margin-top: 0.5rem;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  scrollbar-width: thin;
}
.comments-header {
  position: static;
  z-index: 2;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 94%, transparent);
  backdrop-filter: blur(10px);
}
.comments-header h2 {
  margin: 0;
  color: var(--text-heading);
  font-size: 1rem;
  letter-spacing: -0.01em;
}
.comments-close {
  display: none;
  appearance: none;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}
.comments-state {
  padding: 1rem;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.comments-state.is-error {
  color: var(--danger-text);
  background: var(--danger-bg);
}
.comment-composer {
  margin: 0;
  padding: 0.75rem;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  border-radius: 12px;
  background: var(--accent-soft);
}
.comment-composer.is-linked {
  border-color: color-mix(in srgb, var(--accent) 65%, var(--border));
  box-shadow: 0 0 0 2px var(--accent-soft);
}
.comment-quote {
  max-height: 3.2rem;
  margin-bottom: 0.6rem;
  overflow: hidden;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-style: italic;
  line-height: 1.4;
}
.comment-quote::before { content: "“"; }
.comment-quote::after { content: "”"; }
.comment-composer label {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 650;
}
.comment-composer textarea {
  width: 100%;
  resize: vertical;
  border: 1px solid var(--border-strong);
  border-radius: 9px;
  background: var(--bg);
  color: var(--text);
  padding: 0.6rem;
  font-size: 0.84rem;
  line-height: 1.45;
}
.comment-composer textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.comment-composer-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.4rem;
  margin-top: 0.55rem;
}
.comment-composer-actions .btn {
  min-height: 2rem;
  padding: 0.35rem 0.7rem;
  font-size: 0.75rem;
}
.comment-error {
  margin: 0.45rem 0 0;
  color: var(--danger-text);
  font-size: 0.75rem;
}
.comments-list {
  display: flex;
  flex-direction: column;
  row-gap: 0.65rem;
  padding: 0;
}
.comment-thread {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-soft);
  overflow: visible;
  scroll-margin-top: 8.5rem;
}
.comment-thread.is-linked,
.comment-thread:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: 0 0 0 2px var(--accent-soft);
}
.comment-thread.is-orphaned {
  border-style: dashed;
}
.comment-thread-header {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.65rem 0.7rem 0.5rem;
}
.comment-thread-quote {
  min-width: 0;
  flex: 1;
  margin: 0;
  overflow: hidden;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-style: italic;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.comment-thread:focus-visible,
.comments-close:focus-visible,
.comment-delete:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.comment-message {
  padding: 0.6rem 0.7rem;
  border-top: 1px solid var(--border);
}
.comment-message-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
  color: var(--text-muted);
  font-size: 0.66rem;
}
.comment-message-identity {
  min-width: 0;
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.comment-delete {
  appearance: none;
  flex: 0 0 auto;
  padding: 0.12rem 0.35rem;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.65rem;
  font-weight: 650;
  cursor: pointer;
}
.comment-delete:hover {
  background: var(--danger-bg);
  color: var(--danger-text);
}
.comment-delete:disabled {
  cursor: wait;
  opacity: 0.65;
}
.comment-message-body {
  margin: 0;
  color: var(--text);
  font-size: 0.82rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}
.comment-orphaned-label {
  color: var(--warn-text);
  font-style: normal;
  font-weight: 650;
}
.comments-backdrop {
  display: none;
}

@media (max-width: 64rem) {
  .doc-workspace {
    display: block;
    width: 100%;
    padding: 0;
  }
  .doc-stage {
    padding: 0.5rem 1rem 3rem;
  }
  .comments-backdrop {
    position: fixed;
    z-index: 39;
    inset: 0;
    display: block;
    border: 0;
    background: rgba(0, 0, 0, 0.42);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.18s ease, visibility 0.18s ease;
  }
  .comments-sidebar {
    position: fixed;
    z-index: 40;
    inset: auto 0 0;
    max-height: min(76vh, 42rem);
    margin: 0;
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: 18px 18px 0 0;
    background: var(--bg-elevated);
    box-shadow: var(--shadow);
    transform: translateY(102%);
    visibility: hidden;
    transition: transform 0.2s ease, visibility 0.2s ease;
  }
  .comments-sidebar.is-open {
    transform: translateY(0);
    visibility: visible;
  }
  .comments-header {
    position: sticky;
    top: 0;
    display: flex;
  }
  .comments-list {
    padding: 0 0.75rem 0.75rem;
  }
  .comments-backdrop.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .comments-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 720px) {
  .name-field { width: 5.5rem; }
  .topbar { border-radius: 18px; }
  .hero h1 { max-width: none; }
  .beta-paths { grid-template-columns: 1fr; }
  .path-copy { min-height: 0; }
}

@media (max-width: 420px) {
  .path-card .field-row { flex-direction: column; }
  .path-card .btn { width: 100%; }
}

.banner-error {
  width: min(100%, var(--chrome-max));
  margin: 0.5rem auto 0;
  padding: 0 1rem;
}
.banner-error p {
  margin: 0;
  padding: 0.65rem 0.85rem;
  border-radius: 12px;
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-text);
  font-size: 0.9rem;
}