/*
 * StudySpace — foglio di stile unico.
 * Token dal sistema AD (Stile-promting-ai/tokens/tokens.css): un solo accento #1D87EC usato come fondo,
 * Anybody per interfaccia e titoli (asse della larghezza), Source Serif 4 per il testo degli appunti.
 */
@layer reset, tokens, base, layout, components, editor, views, utilities;

/* ---------- Font ---------- */
@font-face { font-family: "Anybody"; src: url("../fonts/anybody-normal-latin.woff2") format("woff2"); font-weight: 300 900; font-stretch: 50% 150%; font-style: normal; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url("../fonts/sourceserif4-normal-latin.woff2") format("woff2"); font-weight: 400 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url("../fonts/sourceserif4-italic-latin.woff2") format("woff2"); font-weight: 400 700; font-style: italic; font-display: swap; }

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  * { margin: 0; }
  html { -webkit-text-size-adjust: 100%; }
  img, svg, video, canvas { display: block; max-width: 100%; }
  button, input, select, textarea { font: inherit; color: inherit; }
  button { cursor: pointer; background: none; border: 0; padding: 0; }
  [hidden] { display: none !important; }
  table { border-collapse: collapse; }
}

@layer tokens {
  :root {
    --blue-300: #5AAAF5; --blue-400: #45A0F0; --blue-500: #1D87EC; --blue-700: #0B63C4;
    --bg: #EEF1F4; --surface: #E3E8EE; --paper: #F7F9FB; --ink: #0D1B2A; --muted: #4A5868;
    --rule: #C5CED8; --field-border: #6B7A8C; --accent: var(--blue-500); --accent-hover: var(--blue-400);
    --on-accent: #0D1B2A; --link: var(--blue-700); --focus: var(--blue-700);
    --danger: #B3261E; --success: #1E7A46; --warning: #8A5A00;
    --grid-line: rgb(13 27 42 / 0.07); --line-line: rgb(11 99 196 / 0.13);
    --mark-yellow: #FFF0A6; --mark-green: #C7EBD2; --mark-blue: #BFDDFB; --mark-pink: #F8CFE0; --mark-orange: #FCDDB7;
    --backdrop: rgb(5 11 19 / .55);
    color-scheme: light;

    --font-display: "Anybody", "Arial Narrow", Arial, sans-serif;
    --font-text: "Source Serif 4", Georgia, "Times New Roman", serif;
    --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    --fs-caption: .8125rem; --fs-ui: .9375rem; --fs-body: 1.0625rem; --fs-read: 1.1875rem;
    --radius: 4px; --radius-media: 8px;
    --ease-out: cubic-bezier(.2, .7, .1, 1); --duration-ui: 160ms; --duration-move: 240ms;
    --topbar-h: 3.5rem; --sidebar-w: 13.5rem; --sidebar-w-collapsed: 3.5rem;
    --gutter: clamp(1rem, 3vw, 2.5rem);
    --z-sticky: 30; --z-header: 50; --z-panel: 60; --z-menu: 70; --z-dialog: 80; --z-toast: 90; --z-skip: 100;
  }
  :root[data-theme="dark"] {
    --bg: #0A1420; --surface: #111E2D; --paper: #0E1926; --ink: #E6ECF2; --muted: #9AA8B8; --rule: #22324A;
    --field-border: #7C8DA2; --on-accent: #04101C; --link: var(--blue-300); --focus: var(--blue-300);
    --danger: #FF8A80; --success: #5CC98A; --warning: #F2B544;
    --grid-line: rgb(230 236 242 / .06); --line-line: rgb(90 170 245 / .14);
    --mark-yellow: #5C4F12; --mark-green: #1D4A31; --mark-blue: #17406B; --mark-pink: #5A2140; --mark-orange: #5E3A12;
    color-scheme: dark;
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
      --bg: #0A1420; --surface: #111E2D; --paper: #0E1926; --ink: #E6ECF2; --muted: #9AA8B8; --rule: #22324A;
      --field-border: #7C8DA2; --on-accent: #04101C; --link: var(--blue-300); --focus: var(--blue-300);
      --danger: #FF8A80; --success: #5CC98A; --warning: #F2B544;
      --grid-line: rgb(230 236 242 / .06); --line-line: rgb(90 170 245 / .14);
      --mark-yellow: #5C4F12; --mark-green: #1D4A31; --mark-blue: #17406B; --mark-pink: #5A2140; --mark-orange: #5E3A12;
      color-scheme: dark;
    }
  }
  :root[data-font-size="s"] { font-size: 93.75%; }
  :root[data-font-size="l"] { font-size: 106.25%; }
}

@layer base {
  html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
  body { background: var(--bg); color: var(--ink); font-family: var(--font-display); font-size: var(--fs-ui); line-height: 1.5; min-height: 100dvh; }
  h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; text-wrap: balance; }
  p { text-wrap: pretty; }
  a { color: var(--link); text-underline-offset: .18em; text-decoration-thickness: from-font; }
  :focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 2px; }
  ::selection { background: var(--accent); color: var(--on-accent); }
  code, kbd, pre { font-family: var(--font-mono); font-size: .9em; }
  .num, time, .tabular { font-variant-numeric: tabular-nums; }
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  }
  :root[data-motion="off"] *, :root[data-motion="off"] *::before, :root[data-motion="off"] *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------- Struttura ---------- */
@layer layout {
  .skip { position: fixed; top: .75rem; left: .75rem; z-index: var(--z-skip); padding: .75rem 1rem; background: var(--ink); color: var(--bg); border-radius: var(--radius); font-weight: 600; }
  .skip:not(:focus) { clip-path: inset(50%); width: 1px; height: 1px; overflow: hidden; padding: 0; }

  .app { display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr); grid-template-rows: var(--topbar-h) minmax(0, 1fr); min-height: 100dvh; }
  :root[data-rail="on"] .app, :root[data-overlay="on"] .app { grid-template-columns: var(--sidebar-w-collapsed) minmax(0, 1fr); }

  .topbar { grid-column: 1 / -1; position: sticky; top: 0; z-index: var(--z-header); display: flex; align-items: center; gap: .75rem; padding: 0 1rem 0 .75rem; background: var(--bg); border-bottom: 1px solid var(--rule); }
  .brand { display: inline-flex; align-items: center; gap: .5rem; color: var(--ink); text-decoration: none; font-weight: 750; font-stretch: 90%; font-size: 1.0625rem; letter-spacing: -.01em; white-space: nowrap; }
  .brand img { width: 1.75rem; height: 1.75rem; }
  .topsearch { position: relative; flex: 0 1 26rem; margin-left: 1.25rem; }
  .topsearch input { width: 100%; min-height: 2.5rem; padding: 0 2.25rem 0 .875rem; font-size: 1rem; background: var(--surface); border: 1px solid transparent; border-radius: var(--radius); }
  .topsearch input:hover { border-color: var(--rule); }
  .topsearch input:focus-visible { outline-offset: 1px; background: var(--bg); border-color: var(--focus); }
  .topsearch__kbd { position: absolute; right: .5rem; top: 50%; transform: translateY(-50%); padding: 0 .375rem; border: 1px solid var(--rule); border-radius: 3px; color: var(--muted); font-size: .75rem; line-height: 1.4; }
  .topbar__right { margin-left: auto; display: flex; align-items: center; gap: .25rem; }
  .save-state { font-size: var(--fs-caption); color: var(--muted); white-space: nowrap; margin-right: .5rem; display: inline-flex; align-items: center; gap: .4rem; }
  .save-state[data-state="saving"]::before, .save-state[data-state="saved"]::before, .save-state[data-state="offline"]::before, .save-state[data-state="error"]::before { content: ""; width: .5rem; height: .5rem; border-radius: 50%; border: 1.5px solid currentColor; }
  .save-state[data-state="saving"]::before { border-color: var(--muted); border-right-color: transparent; animation: spin 900ms linear infinite; }
  .save-state[data-state="saved"]::before { background: var(--success); border-color: var(--success); }
  .save-state[data-state="offline"] { color: var(--warning); }
  .save-state[data-state="offline"]::before { background: var(--warning); border-color: var(--warning); }
  .save-state[data-state="error"] { color: var(--danger); }
  .save-state[data-state="error"]::before { background: var(--danger); border-color: var(--danger); }
  @keyframes spin { to { transform: rotate(360deg); } }

  .user-button { display: inline-flex; align-items: center; gap: .5rem; min-height: 2.75rem; padding: 0 .5rem 0 .25rem; border-radius: var(--radius); font-weight: 600; }
  .user-button:hover { background: var(--surface); }
  .avatar { display: inline-grid; place-items: center; width: 2rem; height: 2rem; border-radius: var(--radius); background: var(--ink); color: var(--bg); font-weight: 750; font-size: .875rem; }

  .sidebar { position: sticky; top: var(--topbar-h); align-self: start; height: calc(100dvh - var(--topbar-h)); overflow-y: auto; overflow-x: hidden; overscroll-behavior: contain; scrollbar-width: thin; display: flex; flex-direction: column; gap: .75rem; padding: .625rem .5rem; border-right: 1px solid var(--rule); background: var(--bg); }
  .nav { list-style: none; padding: 0; display: grid; gap: 2px; }
  .nav a, .nav button { min-width: 0; overflow: hidden; display: flex; align-items: center; gap: .625rem; width: 100%; min-height: 2.25rem; padding: 0 .625rem; border-radius: var(--radius); color: var(--muted); text-decoration: none; font-weight: 600; font-size: .875rem; text-align: left; white-space: nowrap; }
  .nav svg { width: 18px; height: 18px; }
  @media (pointer: coarse) { .nav a, .nav button { min-height: 2.75rem; } }
  .nav--secondary { padding-top: .5rem; border-top: 1px solid var(--rule); }
  .sidebar__notebooks { min-height: 0; }
  .nav a:hover, .nav button:hover { color: var(--ink); background: var(--surface); }
  .nav a[aria-current="page"] { color: var(--on-accent); background: var(--accent); }
  .nav svg { flex: none; }
  .nav__count { margin-left: auto; font-size: var(--fs-caption); font-weight: 500; font-variant-numeric: tabular-nums; }
  .nav-group__title { padding: 0 .625rem .25rem; font-size: var(--fs-caption); font-weight: 600; color: var(--muted); display: flex; align-items: center; justify-content: space-between; }
  .nav-dot { flex: none; width: .75rem; height: .75rem; border-radius: 3px; }
  .nav a span.label, .nav button span.label { overflow: hidden; text-overflow: ellipsis; min-width: 0; }
  .sidebar__new { margin-top: auto; }
  /* Colonnina di icone: solo le icone, il nome compare passando sopra */
  :root[data-rail="on"] .sidebar { padding-inline: .375rem; }
  :root[data-rail="on"] .sidebar .label, :root[data-rail="on"] .sidebar .nav__count, :root[data-rail="on"] .nav-group__title, :root[data-rail="on"] .sidebar__notebooks { display: none; }
  :root[data-rail="on"] .nav a, :root[data-rail="on"] .nav button { justify-content: center; padding: 0; }
  :root[data-rail="on"] .nav--secondary { border-top: 1px solid var(--rule); }
  /* Aperta sopra il contenuto (editor e schermi stretti): non sposta il foglio */
  :root[data-overlay="on"] .sidebar { position: fixed; left: 0; top: var(--topbar-h); width: var(--sidebar-w); z-index: var(--z-panel); border-right: 1.5px solid var(--ink); }

  .sidebar { grid-column: 1; grid-row: 2; }
  .main { grid-column: 2; grid-row: 2; min-width: 0; padding: 1.5rem var(--gutter) 4rem; max-width: 92rem; }
  .main:focus { outline: none; }
  .main--flush { padding: 0; }
  .loading { color: var(--muted); }

  @media (max-width: 64rem) {
    .topsearch { margin-left: .5rem; }
  }
  @media (max-width: 40rem) {
    .app, :root[data-sidebar] .app, :root[data-rail] .app { grid-template-columns: minmax(0, 1fr); }
    .main { grid-column: 1; }
    .sidebar { display: none; }
    :root[data-sidebar="expanded"] .sidebar { display: flex; }
    .brand span, .topsearch__kbd, .save-state { display: none; }
  }
}

/* ---------- Componenti ---------- */
@layer components {
  .visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

  .button { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 2.75rem; padding: 0 1.125rem; border: 1.5px solid transparent; border-radius: var(--radius); font-family: var(--font-display); font-size: 1rem; font-weight: 650; text-decoration: none; white-space: nowrap; color: var(--ink); transition: background-color var(--duration-ui) ease-out, color var(--duration-ui) ease-out, border-color var(--duration-ui) ease-out; }
  .button:disabled { opacity: .55; cursor: not-allowed; }
  .button--primary { background: var(--accent); color: var(--on-accent); }
  .button--primary:hover:not(:disabled) { background: var(--accent-hover); }
  .button--quiet { border-color: var(--ink); color: var(--ink); background: transparent; }
  .button--quiet:hover:not(:disabled) { background: var(--ink); color: var(--bg); }
  .button--ghost { color: var(--ink); }
  .button--ghost:hover:not(:disabled) { background: var(--surface); }
  .button--danger { border-color: var(--danger); color: var(--danger); }
  .button--danger:hover:not(:disabled) { background: var(--danger); color: var(--bg); }
  .button--small { min-height: 2.25rem; padding: 0 .75rem; font-size: var(--fs-ui); }
  .button--block { width: 100%; }
  .button[aria-busy="true"] { cursor: progress; }

  .icon-button { display: inline-grid; place-items: center; flex: none; width: 2.75rem; height: 2.75rem; border-radius: var(--radius); color: var(--ink); }
  .icon-button:hover { background: var(--surface); }
  .icon-button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
  .icon-button--small { width: 2.25rem; height: 2.25rem; }

  .text-link { font-weight: 650; color: var(--ink); text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: .3em; }
  .text-link:hover { color: var(--link); }
  .row-action { min-height: 2.25rem; padding: 0 .625rem; border-radius: var(--radius); font-weight: 600; color: var(--link); }
  .row-action:hover { background: var(--surface); text-decoration: underline; }
  .row-action--danger { color: var(--danger); }

  .page-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 1rem 2rem; margin-bottom: 1.25rem; }
  .page-title { font-size: clamp(2rem, 1.5rem + 1.6vw, 2.75rem); font-weight: 800; font-stretch: 62%; line-height: .92; letter-spacing: -.02em; }
  .page-lede { margin-top: .5rem; color: var(--muted); font-family: var(--font-text); font-size: 1.0625rem; max-width: 52ch; }
  .page-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
  .crumbs { display: flex; flex-wrap: wrap; gap: .375rem; align-items: center; margin-bottom: .75rem; font-size: var(--fs-ui); color: var(--muted); }
  .crumbs a { color: var(--muted); text-decoration: none; font-weight: 600; }
  .crumbs a:hover { color: var(--ink); text-decoration: underline; }

  .section-title { font-size: 1.5rem; font-weight: 800; font-stretch: 72%; letter-spacing: -.01em; margin-bottom: .75rem; display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
  .section-title a { font-size: var(--fs-ui); font-stretch: 100%; font-weight: 600; }

  .field { display: grid; gap: .4rem; }
  .field > label, .field__label { font-size: var(--fs-ui); font-weight: 600; }
  .field small, .field .hint { font-weight: 450; color: var(--muted); font-size: var(--fs-caption); }
  .field input:not([type="checkbox"]):not([type="radio"]):not([type="color"]), .field select, .field textarea, .input {
    width: 100%; min-height: 2.75rem; padding: .625rem .75rem; font-family: var(--font-display); font-size: 1rem; background: var(--bg); color: var(--ink); border: 1.5px solid var(--field-border); border-radius: var(--radius);
  }
  .field textarea { min-height: 6rem; resize: vertical; line-height: 1.5; }
  .field textarea.serif { font-family: var(--font-text); }
  .field input:hover, .field select:hover, .field textarea:hover, .input:hover { border-color: var(--ink); }
  .field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible, .input:focus-visible { border-color: var(--focus); outline-offset: 1px; }
  .field [aria-invalid="true"] { border-color: var(--danger) !important; }
  .field__error { font-size: var(--fs-ui); font-weight: 550; color: var(--danger); }
  .field__error:empty { display: none; }
  .form { display: grid; gap: 1rem; }
  .form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: 1rem; }
  .form-error { padding: .75rem .875rem; border: 1.5px solid var(--danger); border-radius: var(--radius); color: var(--danger); font-weight: 600; }
  .check { display: flex; align-items: center; gap: .625rem; min-height: 2.75rem; font-weight: 550; cursor: pointer; }
  .check input { width: 1.125rem; height: 1.125rem; accent-color: var(--accent); }

  .switch { appearance: none; position: relative; flex: none; width: 3rem; height: 1.75rem; margin: 0; border: 1.5px solid var(--field-border); border-radius: 999px; background: var(--bg); cursor: pointer; }
  .switch::after { content: ""; position: absolute; top: 50%; left: .25rem; width: 1.125rem; height: 1.125rem; border-radius: 50%; background: var(--ink); transform: translateY(-50%); transition: transform 220ms var(--ease-out); }
  .switch:checked { background: var(--accent); border-color: var(--accent); }
  .switch:checked::after { background: var(--on-accent); transform: translate(1.1875rem, -50%); }
  .setting { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: .875rem 0; border-bottom: 1px solid var(--rule); }
  .setting__text { display: grid; gap: .125rem; }
  .setting__text strong { font-weight: 650; }
  .setting__text span { color: var(--muted); font-size: var(--fs-caption); max-width: 60ch; }

  .segmented { display: inline-flex; border: 1.5px solid var(--field-border); border-radius: var(--radius); overflow: hidden; }
  .segmented label { position: relative; }
  .segmented input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
  .segmented span { display: grid; place-items: center; min-height: 2.5rem; padding: 0 .875rem; font-weight: 600; white-space: nowrap; }
  .segmented label + label span { border-left: 1px solid var(--field-border); }
  .segmented input:checked + span { background: var(--accent); color: var(--on-accent); }
  .segmented input:focus-visible + span { outline: 2px solid var(--focus); outline-offset: -4px; }

  .filters { display: flex; gap: .375rem; flex-wrap: wrap; }
  .filter { min-height: 2.5rem; padding: 0 .875rem; border: 1px solid var(--field-border); border-radius: var(--radius); font-weight: 550; white-space: nowrap; }
  .filter:hover { border-color: var(--ink); }
  .filter[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }

  .tags { display: flex; flex-wrap: wrap; gap: .3rem; list-style: none; padding: 0; }
  .tag { font-size: var(--fs-caption); font-weight: 550; padding: .125rem .4375rem; border: 1px solid var(--rule); border-radius: 3px; color: var(--muted); text-decoration: none; }
  a.tag:hover { color: var(--ink); border-color: var(--field-border); }
  .badge { display: inline-flex; align-items: center; gap: .4em; font-size: var(--fs-caption); font-weight: 650; color: var(--ink); white-space: nowrap; }
  .badge::before { content: ""; width: .5rem; height: .5rem; border-radius: 50%; border: 1.5px solid currentColor; }
  .badge--live::before { background: var(--accent); border-color: var(--accent); }
  .badge--ok::before { background: var(--success); border-color: var(--success); }
  .badge--warn { color: var(--warning); } .badge--warn::before { background: var(--warning); border-color: var(--warning); }
  .badge--error { color: var(--danger); } .badge--error::before { background: var(--danger); border-color: var(--danger); }
  .badge--rec::before { background: var(--danger); border-color: var(--danger); animation: pulse 1.4s ease-in-out infinite; }
  @keyframes pulse { 50% { opacity: .25; } }

  .table-wrap { position: relative; overflow-x: auto; border: 1px solid var(--rule); border-radius: var(--radius); }
  .table { width: 100%; font-size: var(--fs-ui); }
  .table th, .table td { text-align: left; padding: .625rem .875rem; border-bottom: 1px solid var(--rule); vertical-align: middle; }
  .table tbody tr:last-child td { border-bottom: 0; }
  .table th { font-size: var(--fs-caption); font-weight: 650; color: var(--muted); background: var(--surface); white-space: nowrap; }
  .table tbody tr:hover { background: color-mix(in oklab, var(--surface) 60%, transparent); }
  .table .num { text-align: right; }
  .table .actions { text-align: right; white-space: nowrap; }
  .table td.wrap { white-space: normal; }

  .empty { padding: 2.5rem 1.5rem; border: 1px dashed var(--field-border); border-radius: var(--radius-media); }
  .empty h2, .empty h3 { font-size: 1.375rem; font-weight: 750; font-stretch: 85%; }
  .empty p { color: var(--muted); margin: .375rem 0 1rem; font-family: var(--font-text); max-width: 56ch; }
  .notice { padding: .875rem 1rem; border-left: 3px solid var(--accent); background: var(--surface); border-radius: 0 var(--radius) var(--radius) 0; }
  .notice--warn { border-left-color: var(--warning); }
  .notice--error { border-left-color: var(--danger); }
  .notice p + p { margin-top: .375rem; }
  .notice code { background: var(--bg); padding: 0 .25rem; border-radius: 3px; }
  .skeleton { background: var(--surface); border-radius: var(--radius); min-height: 1rem; }

  dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: 0; }
  dl.facts dt, dl.facts dd { padding: .5rem 0; border-bottom: 1px solid var(--rule); }
  dl.facts dt { font-size: var(--fs-caption); color: var(--muted); padding-right: 1.5rem; align-self: center; }
  dl.facts dd { font-weight: 550; font-variant-numeric: tabular-nums; }

  /* Dialoghi */
  dialog { width: min(34rem, calc(100% - 2rem)); max-height: calc(100dvh - 2rem); padding: 0; margin: auto; background: var(--bg); color: var(--ink); border: 1.5px solid var(--ink); border-radius: var(--radius-media); overflow: auto; }
  dialog::backdrop { background: var(--backdrop); }
  dialog[open] { animation: dialog-in var(--duration-move) var(--ease-out); }
  @keyframes dialog-in { from { opacity: 0; transform: translateY(8px); } }
  dialog.dialog--wide { width: min(48rem, calc(100% - 2rem)); }
  dialog.dialog--full { width: min(96rem, calc(100% - 1.5rem)); height: calc(100dvh - 1.5rem); max-height: none; overflow: hidden; }
  .dialog { display: grid; gap: 1.125rem; padding: 1.5rem; }
  .dialog--full .dialog { height: 100%; grid-template-rows: auto minmax(0, 1fr) auto auto; }
  .dialog--full .dialog__body { min-height: 0; overflow: auto; overscroll-behavior: contain; padding-right: .25rem; margin-right: -.25rem; display: flex; flex-direction: column; gap: 1rem; }
  .dialog--full .dialog__body > .compare { flex: 1 1 auto; min-height: 18rem; }
  .dialog__foot { flex-wrap: wrap; align-items: center; }
  .dialog__foot .spacer { display: flex; flex-wrap: wrap; gap: .625rem; }
  .dialog__foot .spacer:empty { display: none; }
  .dialog__foot .spacer:empty + * { margin-left: auto; }
  .dialog__head { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
  .dialog__title { font-size: 1.875rem; font-weight: 800; font-stretch: 65%; line-height: 1; letter-spacing: -.01em; }
  .dialog__sub { color: var(--muted); margin-top: .375rem; font-family: var(--font-text); }
  .dialog__foot { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .625rem; padding-top: 1.125rem; border-top: 1px solid var(--rule); }
  .dialog__foot .spacer { margin-right: auto; }

  /* Menu a comparsa */
  .menu { position: fixed; z-index: var(--z-menu); min-width: 14rem; max-width: 22rem; max-height: min(70dvh, 34rem); overflow: auto; padding: .375rem; background: var(--bg); border: 1.5px solid var(--ink); border-radius: var(--radius-media); animation: menu-in 140ms var(--ease-out); }
  @keyframes menu-in { from { opacity: 0; transform: translateY(-4px); } }
  .menu [role="menuitem"] { display: flex; align-items: center; gap: .625rem; width: 100%; min-height: 2.5rem; padding: 0 .625rem; border-radius: var(--radius); text-align: left; font-weight: 550; color: var(--ink); text-decoration: none; }
  .menu [role="menuitem"]:hover, .menu [role="menuitem"]:focus-visible { background: var(--surface); outline: none; }
  .menu [role="menuitem"].danger { color: var(--danger); }
  .menu [role="menuitem"] small { margin-left: auto; color: var(--muted); font-weight: 500; }
  .menu hr { border: 0; border-top: 1px solid var(--rule); margin: .375rem 0; }
  .menu__label { padding: .5rem .625rem .25rem; font-size: var(--fs-caption); color: var(--muted); font-weight: 600; }

  .toasts { position: fixed; right: 1rem; bottom: 1rem; z-index: var(--z-toast); display: grid; gap: .5rem; justify-items: end; }
  .toast { display: flex; align-items: center; gap: 1rem; max-width: 26rem; padding: .75rem 1rem; background: var(--ink); color: var(--bg); border-radius: var(--radius-media); font-weight: 600; animation: dialog-in var(--duration-move) var(--ease-out); }
  .toast--error { background: var(--danger); color: #fff; }
  :root[data-theme="dark"] .toast--error { color: #1a0605; }
  .toast button { color: inherit; text-decoration: underline; font-weight: 700; }

  .progress { height: .375rem; background: var(--surface); border-radius: 999px; overflow: hidden; }
  .progress > span { display: block; height: 100%; background: var(--accent); transition: width 400ms var(--ease-out); }

  .color-swatches { display: flex; flex-wrap: wrap; gap: .375rem; }
  .swatch { position: relative; width: 2.25rem; height: 2.25rem; border-radius: var(--radius); border: 1.5px solid var(--rule); }
  .swatch input { position: absolute; inset: 0; opacity: 0; cursor: pointer; margin: 0; }
  .swatch:has(input:checked) { outline: 2px solid var(--ink); outline-offset: 2px; }
  .swatch:has(input:focus-visible) { outline: 2px solid var(--focus); outline-offset: 2px; }
  .icon-picker { display: grid; grid-template-columns: repeat(auto-fill, 2.75rem); gap: .375rem; }
  .icon-picker label { position: relative; display: grid; place-items: center; width: 2.75rem; height: 2.75rem; border: 1px solid var(--rule); border-radius: var(--radius); cursor: pointer; }
  .icon-picker input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
  .icon-picker label:has(input:checked) { background: var(--ink); color: var(--bg); border-color: var(--ink); }
  .icon-picker label:has(input:focus-visible) { outline: 2px solid var(--focus); outline-offset: 2px; }

  .tabs { display: flex; gap: .25rem; border-bottom: 1px solid var(--rule); margin-bottom: 1.5rem; overflow-x: auto; }
  .tabs a, .tabs button { display: inline-flex; align-items: center; min-height: 2.75rem; padding: 0 .875rem; color: var(--muted); font-weight: 600; text-decoration: none; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
  .tabs a:hover, .tabs button:hover { color: var(--ink); }
  .tabs [aria-current="page"], .tabs [aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }

  .kbd { display: inline-block; padding: 0 .35rem; border: 1px solid var(--rule); border-radius: 3px; font-size: .75rem; color: var(--muted); font-family: var(--font-display); }
}

/* ---------- Viste ---------- */
@layer views {
  /* Login */
  .login-page { display: grid; min-height: 100dvh; }
  .login { position: relative; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); grid-template-rows: auto 1fr; gap: 0 1.5rem; padding: 1.5rem var(--gutter) 3rem; overflow: hidden; }
  .login__brand { grid-column: 1 / -1; display: flex; align-items: center; gap: .625rem; font-weight: 750; font-stretch: 90%; font-size: 1.125rem; }
  .login__brand img { width: 2.25rem; height: 2.25rem; }
  .login__grid { position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px); background-size: 2rem 2rem; mask-image: linear-gradient(110deg, transparent 30%, #000 70%); }
  .login__panel { grid-column: 2 / span 5; align-self: center; padding-top: 3rem; max-width: 30rem; }
  .login__title { font-size: clamp(2.75rem, 1.6rem + 4vw, 5rem); font-weight: 800; font-stretch: 62%; line-height: .9; letter-spacing: -.025em; }
  .login__lede { margin: 1rem 0 2rem; color: var(--muted); font-family: var(--font-text); font-size: 1.1875rem; }
  .login__note { margin-top: 1.5rem; color: var(--muted); font-size: var(--fs-caption); }
  @media (max-width: 56rem) { .login__panel { grid-column: 1 / -1; } }

  /* Dashboard */


  .shelf { display: grid; grid-template-columns: repeat(auto-fill, minmax(11.5rem, 1fr)); gap: 1rem; }
  .nb-tile { position: relative; display: grid; grid-template-rows: auto 1fr; min-height: 9.5rem; color: var(--ink); text-decoration: none; border: 1px solid var(--rule); border-radius: var(--radius-media); overflow: hidden; background: var(--bg); transition: border-color var(--duration-ui) ease-out, transform var(--duration-ui) ease-out; }
  .nb-tile:hover { border-color: var(--ink); }
  .nb-tile__spine { height: 3.25rem; background: var(--nb-color, var(--accent)); display: flex; align-items: center; padding: 0 .875rem; color: #0D1B2A; background-size: cover; background-position: center; }
  .nb-tile__spine svg { opacity: .9; }
  .nb-tile__body { padding: .75rem .875rem .875rem; display: grid; gap: .25rem; align-content: start; }
  .nb-tile__name { font-size: 1.125rem; font-weight: 750; font-stretch: 80%; line-height: 1.15; }
  .nb-tile__meta { color: var(--muted); font-size: var(--fs-caption); font-variant-numeric: tabular-nums; }
  .nb-tile--new { place-items: center; grid-template-rows: 1fr; border-style: dashed; border-color: var(--field-border); color: var(--muted); font-weight: 600; }
  .nb-tile--new:hover { color: var(--ink); }

  .list { list-style: none; padding: 0; border-top: 1.5px solid var(--ink); }
  .list > li { border-bottom: 1px solid var(--rule); }
  .list-row { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: .875rem; align-items: center; padding: .75rem .25rem; color: var(--ink); text-decoration: none; min-height: 3.5rem; }
  a.list-row:hover { background: color-mix(in oklab, var(--surface) 70%, transparent); }
  .list-row__title, .list-row__sub { display: block; }
  .list-row__title { font-weight: 650; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .list-row__sub { color: var(--muted); font-size: var(--fs-caption); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .list-row__end { color: var(--muted); font-size: var(--fs-caption); text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
  .chip-dot { width: .625rem; height: .625rem; border-radius: 3px; background: var(--nb-color, var(--accent)); }



  /* Quaderno */
  .nb-head { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 1.25rem; align-items: end; margin-bottom: 1.5rem; }
  .nb-cover { width: 5.5rem; height: 7rem; border-radius: var(--radius-media); background: var(--nb-color, var(--accent)); display: grid; place-items: end start; padding: .625rem; color: #0D1B2A; background-size: cover; background-position: center; }
  .nb-desc { color: var(--muted); font-family: var(--font-text); margin-top: .5rem; max-width: 60ch; }
  .nb-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1rem; margin-bottom: 1rem; }
  .nb-toolbar .count { margin-left: auto; color: var(--muted); font-variant-numeric: tabular-nums; }
  .note-group { margin-bottom: 2rem; }
  .note-group__head { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding-bottom: .5rem; }
  .note-group__head h2 { font-size: 1.25rem; font-weight: 750; font-stretch: 80%; }
  .note-row { display: grid; grid-template-columns: 6.25rem minmax(0, 1fr) auto; gap: 1rem; align-items: start; padding: .875rem .25rem; color: var(--ink); text-decoration: none; }
  .note-row:hover { background: color-mix(in oklab, var(--surface) 70%, transparent); }
  .note-row__date { font-weight: 650; font-variant-numeric: tabular-nums; line-height: 1.3; }
  .note-row__date small { display: block; color: var(--muted); font-weight: 500; font-size: var(--fs-caption); }
  .note-row__title { font-weight: 700; font-size: 1.0625rem; }
  .note-row__excerpt { color: var(--muted); font-family: var(--font-text); font-size: .9375rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-top: .125rem; }
  .note-row__flags { display: flex; gap: .5rem; align-items: center; color: var(--muted); }
  .note-row .tags { margin-top: .375rem; }

  /* Ricerca */
  .search-form { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .75rem; margin-bottom: 1rem; }
  .search-filters { display: flex; flex-wrap: wrap; gap: .75rem 1rem; align-items: end; padding: 1rem 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); margin-bottom: 1.5rem; }
  .search-filters .field { min-width: 10rem; }
  .result { padding: .875rem .25rem; border-bottom: 1px solid var(--rule); }
  .result a { color: var(--ink); text-decoration: none; font-weight: 700; }
  .result a:hover { text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; }
  .result p { color: var(--muted); font-family: var(--font-text); margin-top: .25rem; }
  .result mark { background: var(--mark-yellow); color: inherit; padding: 0 .1em; }
  .result__meta { font-size: var(--fs-caption); color: var(--muted); margin-top: .25rem; }

  /* Impostazioni */
  .settings-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 2rem; }
  .settings-block { grid-column: 1 / span 8; display: grid; gap: 1rem; align-content: start; margin-bottom: 2.5rem; }
  .settings-block h2 { font-size: 1.375rem; font-weight: 800; font-stretch: 72%; }
  .settings-aside { grid-column: 10 / -1; color: var(--muted); font-family: var(--font-text); }
  @media (max-width: 64rem) { .settings-block, .settings-aside { grid-column: 1 / -1; } }

  /* Registrazioni */
  .rec-studio { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 1.5rem 2rem; margin-bottom: 2.5rem; padding-bottom: 2rem; border-bottom: 1.5px solid var(--ink); }
  .rec-studio__form { grid-column: 1 / span 5; display: grid; gap: 1rem; align-content: start; }
  .rec-studio__live { grid-column: 6 / -1; display: grid; gap: 1rem; align-content: start; }
  @media (max-width: 64rem) { .rec-studio__form, .rec-studio__live { grid-column: 1 / -1; } }
  .rec-timer { font-size: clamp(3.5rem, 2rem + 5vw, 6rem); font-weight: 800; font-stretch: 62%; line-height: .9; font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
  .rec-wave { width: 100%; height: 6rem; background: var(--surface); border-radius: var(--radius-media); }
  .rec-controls { display: flex; flex-wrap: wrap; gap: .5rem; }
  .rec-status { display: flex; flex-wrap: wrap; gap: .75rem 1.25rem; color: var(--muted); font-size: var(--fs-ui); }

  .recbar { display: flex; align-items: center; gap: .5rem; padding: .25rem .375rem .25rem .75rem; border: 1.5px solid var(--danger); border-radius: var(--radius); font-weight: 650; font-variant-numeric: tabular-nums; white-space: nowrap; }
  .recbar a { color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; gap: .5rem; }
  .recbar .icon-button { width: 2.25rem; height: 2.25rem; }

  .transcript { display: grid; gap: 0; border-top: 1.5px solid var(--ink); }
  .seg { display: grid; grid-template-columns: 4.5rem 9rem minmax(0, 1fr) auto; gap: .75rem; padding: .75rem .25rem; border-bottom: 1px solid var(--rule); align-items: start; }
  .seg.is-playing { background: color-mix(in oklab, var(--accent) 14%, transparent); }
  .seg__time { font-variant-numeric: tabular-nums; font-weight: 600; color: var(--link); min-height: 2.25rem; text-align: left; }
  .seg__time:hover { text-decoration: underline; }
  .seg__speaker select { width: 100%; min-height: 2.25rem; padding: 0 .375rem; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--bg); font-size: var(--fs-ui); font-weight: 600; }
  .seg__text { font-family: var(--font-text); font-size: 1.0625rem; line-height: 1.55; padding: .25rem .375rem; border-radius: var(--radius); }
  .seg__text:hover { background: var(--surface); }
  .seg__text:focus { outline: 2px solid var(--focus); outline-offset: 1px; background: var(--bg); }
  .seg__text mark { background: var(--mark-yellow); color: inherit; }
  .seg__edited { font-size: var(--fs-caption); color: var(--muted); padding-top: .5rem; }
  @media (max-width: 48rem) { .seg { grid-template-columns: 4rem minmax(0, 1fr); } .seg__speaker { grid-column: 2; } .seg__text { grid-column: 1 / -1; } .seg__edited { display: none; } }
  .player { position: sticky; top: var(--topbar-h); z-index: var(--z-sticky); display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; padding: .75rem 0; background: var(--bg); border-bottom: 1px solid var(--rule); margin-bottom: 1rem; }
  .player audio { flex: 1 1 18rem; height: 2.75rem; }
  .speakers { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
  .speaker-chip { display: inline-flex; align-items: center; gap: .375rem; min-height: 2.25rem; padding: 0 .375rem 0 .625rem; border: 1px solid var(--rule); border-radius: var(--radius); font-weight: 600; }
  .speaker-chip input { width: 9rem; border: 0; background: transparent; font-weight: 600; min-height: 2rem; }
  .speaker-chip input:focus-visible { outline: 2px solid var(--focus); }
}

/* ---------- Editor ---------- */
@layer editor {
  .main--editor { max-width: none; padding: 0; display: grid; grid-template-rows: auto auto minmax(0, 1fr); min-height: calc(100dvh - var(--topbar-h)); }
  .ed-head { display: grid; gap: .25rem; padding: .5rem var(--gutter) .625rem; border-bottom: 1px solid var(--rule); }
  .ed-bar { display: flex; align-items: center; justify-content: space-between; gap: .5rem 1rem; min-height: 2.5rem; }
  .ed-crumbs { display: flex; align-items: center; gap: .25rem; min-width: 0; }
  .ed-crumbs__nb { display: inline-flex; align-items: center; gap: .4rem; min-width: 0; max-width: 18rem; padding: 0 .5rem; min-height: 2.25rem; border-radius: var(--radius); color: var(--muted); font-weight: 650; font-size: .875rem; text-decoration: none; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .ed-crumbs__nb:hover { color: var(--ink); background: var(--surface); }
  .ed-crumbs__nav { display: inline-flex; }
  .ed-crumbs__nav .is-disabled { opacity: .3; pointer-events: none; }
  .ed-btn { display: inline-flex; align-items: center; justify-content: center; gap: .375rem; min-height: 2.25rem; padding: 0 .625rem; border-radius: var(--radius); color: var(--ink); font-weight: 600; font-size: .875rem; white-space: nowrap; transition: background-color var(--duration-ui) ease-out; }
  .ed-btn:hover { background: var(--surface); }
  .ed-btn[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
  .ed-btn--ghost { color: var(--muted); }
  .ed-btn--ghost:hover { color: var(--ink); }
  .ed-btn--ai { padding: 0 .875rem; background: var(--accent); color: var(--on-accent); font-weight: 700; }
  .ed-btn--ai:hover { background: var(--accent-hover); }
  .ed-sep { width: 1px; height: 1.25rem; background: var(--rule); margin: 0 .25rem; }
  @media (max-width: 80rem) { .ed-btn__label { display: none; } .ed-btn { padding: 0 .5rem; } }
  .ed-title { width: 100%; min-width: 0; font-family: var(--font-display); font-size: clamp(1.5rem, 1.2rem + .9vw, 2rem); font-weight: 800; font-stretch: 68%; line-height: 1.05; letter-spacing: -.015em; background: transparent; border: 0; padding: .125rem 0; border-radius: var(--radius); }
  .ed-title::placeholder { color: var(--muted); opacity: .7; }
  .ed-title:focus-visible { outline-offset: 2px; }
  .ed-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .25rem .5rem; color: var(--muted); font-size: .875rem; }
  .ed-meta__item { display: inline-flex; align-items: center; gap: .25rem; padding-left: .375rem; border-radius: var(--radius); color: var(--muted); }
  .ed-meta__item:hover { background: var(--surface); }
  .ed-meta__item input, .ed-meta__item select { padding-left: .125rem !important; }
  .ed-meta input[type="date"] { width: 9.25rem; }
  .ed-meta input[type="time"] { width: 6.25rem; }
  .ed-meta input[type="date"], .ed-meta input[type="time"] { position: relative; cursor: pointer; }
  .ed-meta input[type="date"] { width: 7.5rem; }
  .ed-meta input[type="time"] { width: 4.25rem; }
  /* L'icona del browser resta cliccabile ma invisibile: tutto il campo apre il calendario */
  .ed-meta input::-webkit-calendar-picker-indicator { position: absolute; inset: 0; width: auto; height: auto; opacity: 0; cursor: pointer; }
  .ed-meta__words { margin-left: auto; font-size: var(--fs-caption); font-variant-numeric: tabular-nums; white-space: nowrap; }
  .ed-meta input, .ed-meta select { min-height: 2rem; padding: 0 .375rem; border: 1px solid transparent; border-radius: var(--radius); background: transparent; color: var(--ink); font-weight: 600; font-size: .875rem; font-variant-numeric: tabular-nums; }
  .ed-meta input:hover, .ed-meta select:hover { border-color: var(--rule); }
  .ed-meta input:focus-visible, .ed-meta select:focus-visible { border-color: var(--focus); outline-offset: 0; }
  .ed-tags { display: inline-flex; flex-wrap: wrap; align-items: center; gap: .25rem; }
  .ed-tags input { width: 6rem; min-height: 2rem; }
  .ed-tag { display: inline-flex; align-items: center; gap: .125rem; font-size: var(--fs-caption); font-weight: 600; padding: .125rem .125rem .125rem .4375rem; border: 1px solid var(--rule); border-radius: 3px; }
  .ed-tag button { width: 1.5rem; height: 1.5rem; display: grid; place-items: center; color: var(--muted); border-radius: 2px; }
  .ed-tag button:hover { color: var(--ink); background: var(--surface); }
  .ed-actions { display: flex; align-items: center; gap: .125rem; justify-content: flex-end; flex-wrap: wrap; }
  .ai-button { background: var(--accent); color: var(--on-accent); }
  .ai-button:hover { background: var(--accent-hover); }

  .toolbar { position: sticky; top: var(--topbar-h); z-index: var(--z-sticky); display: grid; gap: 0; background: var(--bg); border-bottom: 1px solid var(--rule); }
  .toolbar__row { display: flex; align-items: center; gap: .125rem; padding: .25rem calc(var(--gutter) - .25rem); overflow-x: auto; scrollbar-width: thin; }
  .toolbar__row + .toolbar__row { border-top: 1px solid var(--rule); min-height: 3rem; }
  .toolbar__sep { flex: none; width: 1px; height: 1.75rem; margin: 0 .375rem; background: var(--rule); }
  .toolbar__spacer { flex: 1 0 .5rem; }
  .tool { flex: none; display: inline-grid; place-items: center; min-width: 2.5rem; height: 2.5rem; padding: 0 .375rem; border-radius: var(--radius); color: var(--ink); font-weight: 650; font-size: var(--fs-ui); }
  .tool:hover { background: var(--surface); }
  .tool[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
  .tool:disabled { opacity: .4; cursor: default; }
  .tool--text { padding: 0 .625rem; }
  .tool-select { flex: none; height: 2.5rem; padding: 0 .5rem; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--bg); font-weight: 600; font-size: var(--fs-ui); }
  .tool-color { flex: none; width: 2.5rem; height: 2.5rem; display: grid; place-items: center; border-radius: var(--radius); }
  .tool-color span { width: 1.25rem; height: 1.25rem; border-radius: 50%; border: 1.5px solid var(--rule); }
  .tool-color[aria-pressed="true"] { background: var(--surface); box-shadow: inset 0 0 0 1.5px var(--ink); }
  .tool-width { flex: none; width: 2.5rem; height: 2.5rem; display: grid; place-items: center; border-radius: var(--radius); }
  .tool-width span { background: var(--ink); border-radius: 999px; width: 1.25rem; }
  .tool-width[aria-pressed="true"] { background: var(--surface); box-shadow: inset 0 0 0 1.5px var(--ink); }
  .zoom-label { min-width: 3.5rem; text-align: center; font-variant-numeric: tabular-nums; font-weight: 600; color: var(--muted); }
  .mark-chip { width: 1.25rem; height: 1.25rem; border-radius: 3px; border: 1px solid var(--rule); }

  .ed-body { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) auto; min-height: 0; background: var(--surface); }
  .workspace { position: relative; overflow: auto; overscroll-behavior: contain; padding: 2rem 1.5rem 6rem; min-height: 0; height: calc(100dvh - var(--topbar-h) - var(--ed-chrome, 11rem)); scrollbar-gutter: stable; }
  .workspace.is-panning { cursor: grabbing; }
  .workspace { touch-action: pan-x pan-y; }
  .workspace .paper-scale { position: relative; }
  .paper-scale { margin: 0 auto; position: relative; }
  .paper { position: absolute; top: 0; left: 0; width: 860px; transform-origin: 0 0; background: var(--paper); border: 1px solid var(--rule); border-radius: var(--radius-media); }
  :root[data-editor-width="narrow"] .paper-scale { --page-max: 720px; }
  .paper--lines { background-image: repeating-linear-gradient(to bottom, transparent 0 31px, var(--line-line) 31px 32px); background-position: 0 56px; }
  .paper--grid { background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px); background-size: 24px 24px; background-position: -1px -1px; }

  .doc { position: relative; z-index: 1; min-height: 100%; padding: 56px 72px 160px; font-family: var(--font-text); font-size: 18px; line-height: 32px; color: var(--ink); outline: none; caret-color: var(--accent); word-wrap: break-word; }
  .doc:empty::before, .doc.is-empty > p:first-child::before { content: attr(data-placeholder); color: var(--muted); opacity: .75; pointer-events: none; position: absolute; }
  .doc > * + * { margin-top: 0; }
  .doc p { min-height: 32px; }
  .doc h1, .doc h2, .doc h3 { font-family: var(--font-display); color: var(--ink); letter-spacing: -.01em; }
  .doc h1 { font-size: 34px; font-weight: 800; font-stretch: 68%; line-height: 40px; margin: 24px 0 8px; }
  .doc h2 { font-size: 25px; font-weight: 750; font-stretch: 78%; line-height: 32px; margin: 16px 0 0; }
  .doc h3 { font-size: 19px; font-weight: 700; font-stretch: 90%; line-height: 32px; }
  .doc h1:first-child, .doc h2:first-child { margin-top: 0; }
  .doc ul, .doc ol { padding-left: 28px; }
  .doc li { padding-left: 4px; }
  .doc li::marker { color: var(--muted); font-family: var(--font-display); }
  .doc ul[data-type="checklist"] { list-style: none; padding-left: 4px; }
  .doc ul[data-type="checklist"] > li { position: relative; padding-left: 32px; }
  .doc ul[data-type="checklist"] > li::before { content: ""; position: absolute; left: 2px; top: 7px; width: 18px; height: 18px; border: 1.5px solid var(--field-border); border-radius: 4px; background: var(--bg); cursor: pointer; }
  .doc ul[data-type="checklist"] > li[data-checked="true"]::before { background: var(--accent); border-color: var(--accent); }
  .doc ul[data-type="checklist"] > li[data-checked="true"]::after { content: ""; position: absolute; left: 8px; top: 10px; width: 6px; height: 10px; border: solid var(--on-accent); border-width: 0 2px 2px 0; transform: rotate(45deg); pointer-events: none; }
  .doc ul[data-type="checklist"] > li[data-checked="true"] { color: var(--muted); text-decoration: line-through; text-decoration-color: var(--field-border); }
  .doc blockquote { border-left: 3px solid var(--accent); padding-left: 16px; color: var(--muted); font-style: italic; }
  .doc pre { font-family: var(--font-mono); font-size: 14.5px; line-height: 24px; background: var(--surface); border-radius: var(--radius); padding: 8px 14px; margin: 4px 0; white-space: pre-wrap; tab-size: 4; }
  .doc code { font-family: var(--font-mono); font-size: .86em; background: var(--surface); padding: 1px 4px; border-radius: 3px; }
  .doc pre code { background: none; padding: 0; }
  .doc hr { border: 0; border-top: 1.5px solid var(--rule); margin: 15px 0 16px; }
  .doc a { color: var(--link); }
  .doc a.attachment { display: inline-flex; align-items: center; gap: 6px; padding: 0 8px; border: 1px solid var(--rule); border-radius: var(--radius); font-family: var(--font-display); font-size: 15px; font-weight: 600; text-decoration: none; color: var(--ink); background: var(--bg); line-height: 30px; }
  .doc a.attachment::before { content: ""; width: 14px; height: 14px; background: currentColor; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M13.5 6.5 7.8 12.2a1.6 1.6 0 0 0 2.3 2.3l6-6a3.2 3.2 0 0 0-4.6-4.6l-6 6a4.8 4.8 0 0 0 6.8 6.8l5-5' fill='none' stroke='black' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E") center / contain no-repeat; }
  .doc img { max-width: 100%; height: auto; border-radius: var(--radius-media); margin: 8px 0; }
  .doc img.is-selected { outline: 2px solid var(--focus); outline-offset: 2px; }
  .doc table { border-collapse: collapse; margin: 8px 0; width: 100%; font-size: 16px; line-height: 24px; }
  .doc th, .doc td { border: 1px solid var(--rule); padding: 4px 10px; vertical-align: top; min-width: 3rem; }
  .doc th { background: var(--surface); font-family: var(--font-display); font-weight: 650; font-size: 15px; text-align: left; }
  .doc mark { color: inherit; background: var(--mark-yellow); padding: 0 1px; border-radius: 2px; }
  .doc mark[data-color="green"] { background: var(--mark-green); }
  .doc mark[data-color="blue"] { background: var(--mark-blue); }
  .doc mark[data-color="pink"] { background: var(--mark-pink); }
  .doc mark[data-color="orange"] { background: var(--mark-orange); }
  .doc .math { display: inline-block; padding: 0 3px; border-radius: 3px; cursor: pointer; font-size: 1.05em; }
  .doc .math:hover { background: var(--surface); }
  .doc .math-block { display: block; text-align: center; margin: 8px 0; padding: 4px; cursor: pointer; border-radius: var(--radius); font-size: 1.15em; }
  .doc .math-block:hover { background: var(--surface); }
  .doc math { font-family: "STIX Two Math", "Cambria Math", "Latin Modern Math", var(--font-text); }
  .doc .search-hit { background: var(--accent); color: var(--on-accent); border-radius: 2px; }
  .doc .ai-selection { background: color-mix(in oklab, var(--accent) 30%, transparent); }

  /* Livelli di disegno */
  .ink { position: absolute; inset: 0; z-index: 2; width: 100%; height: 100%; overflow: visible; pointer-events: none; touch-action: auto; }
  .paper[data-mode="draw"] .ink, .paper[data-mode="select"] .ink, .paper[data-mode="hand"] .ink { pointer-events: auto; }
  .paper[data-mode="draw"] .ink { cursor: crosshair; touch-action: none; }
  .paper[data-mode="draw"][data-pen-only="true"] .ink { touch-action: pan-x pan-y pinch-zoom; }
  .paper[data-mode="select"] .ink { cursor: default; touch-action: none; }
  .paper[data-mode="hand"] .ink { cursor: grab; }
  .paper[data-mode="draw"] .doc, .paper[data-mode="select"] .doc, .paper[data-mode="hand"] .doc { user-select: none; -webkit-user-select: none; }
  .paper[data-tool="eraser"] .ink { cursor: cell; }
  .ink .hl { mix-blend-mode: multiply; }
  :root[data-paper-theme="follow"][data-theme="dark"] .ink .hl { mix-blend-mode: screen; }
  .ink .sel-box { fill: color-mix(in oklab, var(--accent) 8%, transparent); stroke: var(--accent); stroke-width: 1; stroke-dasharray: 4 3; }
  .ink .sel-handle { fill: var(--bg); stroke: var(--accent); stroke-width: 1.5; cursor: nwse-resize; }
  .ink .hit { stroke: transparent; fill: none; pointer-events: stroke; }
  .ink .link-label { font-family: var(--font-display); font-size: 13px; font-style: italic; fill: var(--muted); paint-order: stroke; stroke: var(--paper); stroke-width: 4px; }
  .ink .link-label-bg { fill: var(--paper); }

  .elements { position: absolute; inset: 0; z-index: 3; pointer-events: none; }
  .el { position: absolute; pointer-events: none; font-family: var(--font-display); color: var(--ink); }
  .paper[data-mode="select"] .el, .paper[data-tool="connect"] .el { pointer-events: auto; cursor: move; }
  .paper[data-mode="text"] .el--text, .paper[data-mode="text"] .el--node { pointer-events: auto; cursor: text; }
  .el--text { padding: 4px 6px; font-size: 16px; line-height: 1.35; white-space: pre-wrap; border: 1px dashed transparent; border-radius: var(--radius); }
  .paper[data-mode="select"] .el--text, .paper[data-mode="text"] .el--text { border-color: var(--rule); }
  .el--node { display: grid; place-items: center; padding: 4px 6px; text-align: center; font-size: 15px; font-weight: 600; line-height: 1.22; border: 1.6px solid currentColor; border-radius: 10px; background: var(--paper); white-space: pre-wrap; overflow-wrap: anywhere; }
  .el--node[data-shape="rect"] { border-radius: 2px; }
  .el--node[data-shape="ellipse"] { border-radius: 50%; }
  .el--node[data-shape="diamond"] { border: 0; background: transparent; }
  .el--node[data-shape="diamond"]::before { content: ""; position: absolute; inset: 0; z-index: -1; border: 2px solid currentColor; background: var(--paper); clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%); }
  .el__text { display: block; min-width: 1ch; outline: none; color: var(--ink); }
  .el__text[contenteditable="true"] { cursor: text; }
  .el.is-selected { outline: 2px solid var(--accent); outline-offset: 3px; }
  .el.is-connect-source { outline: 2px dashed var(--accent); outline-offset: 4px; }
  .el--image img { width: 100%; height: 100%; object-fit: contain; border-radius: var(--radius); }

  .sel-pop { position: absolute; z-index: var(--z-menu); display: flex; gap: .125rem; padding: .25rem; background: var(--ink); border-radius: var(--radius-media); }
  .sel-pop button { min-height: 2.25rem; padding: 0 .625rem; color: var(--bg); font-weight: 650; border-radius: var(--radius); font-size: var(--fs-ui); white-space: nowrap; }
  .sel-pop button:hover { background: color-mix(in oklab, var(--bg) 18%, transparent); }

  .side-panel { width: min(26rem, 100vw); border-left: 1px solid var(--rule); background: var(--bg); display: grid; grid-template-rows: auto minmax(0, 1fr) auto; height: calc(100dvh - var(--topbar-h) - var(--ed-chrome, 11rem)); position: sticky; top: 0; }
  .side-panel__head { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: .625rem .75rem .625rem 1rem; border-bottom: 1px solid var(--rule); }
  .side-panel__head h2 { font-size: 1.25rem; font-weight: 800; font-stretch: 72%; }
  .side-panel__body { overflow-y: auto; padding: 1rem; display: grid; gap: 1rem; align-content: start; }
  .side-panel__foot { padding: .75rem 1rem 1rem; border-top: 1px solid var(--rule); display: grid; gap: .5rem; }
  @media (max-width: 64rem) {
    .side-panel { position: fixed; right: 0; top: var(--topbar-h); z-index: var(--z-panel); height: calc(100dvh - var(--topbar-h)); border-left: 1.5px solid var(--ink); }
  }

  /* Chat */
  .chat-msg { display: grid; gap: .375rem; }
  .chat-msg__who { font-size: var(--fs-caption); font-weight: 650; color: var(--muted); }
  .chat-msg--user .chat-msg__body { background: var(--surface); padding: .625rem .75rem; border-radius: var(--radius-media); font-family: var(--font-display); }
  .chat-msg__body { font-family: var(--font-text); font-size: 1rem; line-height: 1.55; overflow-wrap: anywhere; }
  .chat-msg__quote { border-left: 3px solid var(--accent); padding: .25rem .625rem; color: var(--muted); font-family: var(--font-text); font-style: italic; font-size: .9375rem; max-height: 6rem; overflow: auto; }
  .chat-context { display: grid; gap: .375rem; padding: .5rem .625rem; border: 1px solid var(--rule); border-radius: var(--radius); font-size: var(--fs-caption); }
  .chat-context__text { font-family: var(--font-text); font-style: italic; font-size: .9375rem; color: var(--ink); max-height: 5rem; overflow: auto; }
  .chat-input { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .5rem; align-items: end; }
  .chat-input textarea { min-height: 2.75rem; max-height: 10rem; resize: none; padding: .625rem .75rem; border: 1.5px solid var(--field-border); border-radius: var(--radius); background: var(--bg); font-size: 1rem; line-height: 1.4; }
  .chat-input textarea:focus-visible { border-color: var(--focus); outline-offset: 1px; }

  /* Testo generato (Markdown) */
  .md { font-family: var(--font-text); font-size: 1.0625rem; line-height: 1.6; overflow-wrap: anywhere; }
  .md > * + * { margin-top: .625em; }
  .md h1, .md h2, .md h3, .md h4 { font-family: var(--font-display); line-height: 1.2; margin-top: 1em; }
  .md h1 { font-size: 1.6em; font-weight: 800; font-stretch: 70%; }
  .md h2 { font-size: 1.3em; font-weight: 750; font-stretch: 80%; }
  .md h3 { font-size: 1.1em; font-weight: 700; }
  .md ul, .md ol { padding-left: 1.4em; }
  .md li + li { margin-top: .2em; }
  .md pre { background: var(--surface); padding: .625rem .75rem; border-radius: var(--radius); overflow-x: auto; font-size: .875rem; }
  .md code { background: var(--surface); padding: 0 .25em; border-radius: 3px; font-size: .88em; }
  .md pre code { background: none; padding: 0; }
  .md blockquote { border-left: 3px solid var(--accent); padding-left: .875rem; color: var(--muted); }
  .md table { border-collapse: collapse; width: 100%; font-size: .9375rem; }
  .md th, .md td { border: 1px solid var(--rule); padding: .25rem .5rem; text-align: left; vertical-align: top; }
  .md th { background: var(--surface); font-family: var(--font-display); }
  .md .verify, .doc mark[data-color="orange"].verify { background: var(--mark-orange); padding: 0 .2em; border-radius: 2px; font-family: var(--font-display); font-size: .9em; font-weight: 600; }
  .md hr { border: 0; border-top: 1px solid var(--rule); }
  .md mark { color: inherit; background: var(--mark-yellow); padding: 0 .15em; border-radius: 2px; }
  .md mark[data-color="green"] { background: var(--mark-green); }
  .md mark[data-color="blue"] { background: var(--mark-blue); }
  .md mark[data-color="pink"] { background: var(--mark-pink); }
  .md mark[data-color="orange"] { background: var(--mark-orange); font-family: var(--font-display); font-size: .92em; font-weight: 600; }

  /* Confronto prima/dopo */
  .compare { display: grid; grid-template-columns: 1fr 1fr; gap: 0; min-height: 0; border: 1px solid var(--rule); border-radius: var(--radius-media); overflow: hidden; }
  .compare__col { display: grid; grid-template-rows: auto minmax(0, 1fr); min-height: 0; min-width: 0; }
  .compare__col + .compare__col { border-left: 1.5px solid var(--ink); }
  .compare__head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem; padding: .625rem .875rem; background: var(--surface); border-bottom: 1px solid var(--rule); }
  .compare__head h3 { font-size: 1rem; font-weight: 750; }
  .compare__body { overflow: auto; padding: 1rem 1.25rem 2rem; }
  .compare__body[contenteditable="true"] { outline: none; }
  .compare__body[contenteditable="true"]:focus-visible { box-shadow: inset 0 0 0 2px var(--focus); }
  .compare .diff-del { background: color-mix(in oklab, var(--danger) 20%, transparent); text-decoration: line-through; text-decoration-color: var(--danger); }
  .compare .diff-add { background: color-mix(in oklab, var(--success) 22%, transparent); }
  .compare-legend { display: flex; flex-wrap: wrap; gap: 1rem; font-size: var(--fs-caption); color: var(--muted); }
  .compare-legend span { display: inline-flex; align-items: center; gap: .375rem; }
  .compare-legend i { width: .875rem; height: .875rem; border-radius: 2px; }
  .compare-extra { margin-top: 1rem; padding-top: .75rem; border-top: 1px dashed var(--rule); font-size: var(--fs-caption); color: var(--muted); }
  @media (max-width: 56rem) { .compare { grid-template-columns: 1fr; } .compare__col + .compare__col { border-left: 0; border-top: 1.5px solid var(--ink); } }

  .ai-menu { display: grid; grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr)); gap: 1.25rem 1.5rem; }
  .ai-group h3 { font-size: .9375rem; font-weight: 750; margin-bottom: .375rem; }
  .ai-group p { color: var(--muted); font-size: var(--fs-caption); margin-bottom: .375rem; }
  .ai-group ul { list-style: none; padding: 0; display: grid; gap: 2px; }
  .ai-group button { width: 100%; min-height: 2.5rem; padding: 0 .625rem; border-radius: var(--radius); text-align: left; font-weight: 600; border: 1px solid var(--rule); }
  .ai-group button:hover { border-color: var(--ink); background: var(--surface); }
  .ai-scope { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; padding: .75rem .875rem; background: var(--surface); border-radius: var(--radius); }

  .flashcards { display: grid; grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); gap: .75rem; }
  .flashcard { min-height: 9rem; padding: 1rem; border: 1px solid var(--rule); border-radius: var(--radius-media); text-align: left; display: grid; align-content: space-between; gap: .75rem; background: var(--bg); }
  .flashcard:hover { border-color: var(--ink); }
  .flashcard__side { font-size: var(--fs-caption); font-weight: 650; color: var(--muted); }
  .flashcard__text { font-family: var(--font-text); font-size: 1.0625rem; }
  .flashcard[aria-pressed="true"] { background: var(--surface); }
  .quiz { display: grid; gap: 1.25rem; }
  .quiz fieldset { border: 0; padding: 0; display: grid; gap: .375rem; }
  .quiz legend { font-weight: 700; margin-bottom: .375rem; font-size: 1.0625rem; }
  .quiz label { display: flex; gap: .625rem; align-items: center; min-height: 2.75rem; padding: .5rem .625rem; border: 1px solid var(--rule); border-radius: var(--radius); cursor: pointer; font-family: var(--font-text); }
  .quiz label.is-right { border-color: var(--success); background: color-mix(in oklab, var(--success) 12%, transparent); }
  .quiz label.is-wrong { border-color: var(--danger); background: color-mix(in oklab, var(--danger) 10%, transparent); }
  .quiz .explain { font-family: var(--font-text); color: var(--muted); font-size: .9375rem; }
  .cmap { width: 100%; border: 1px solid var(--rule); border-radius: var(--radius-media); background: var(--paper); }
  .cmap text { font-family: var(--font-display); }

  .versions { list-style: none; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--rule); }
  .versions li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .25rem .75rem; padding: .625rem 0; border-bottom: 1px solid var(--rule); align-items: center; }
  .versions strong { font-weight: 650; display: block; }
  .versions small { color: var(--muted); font-size: var(--fs-caption); }
  .versions .row-action { min-height: 2rem; }

  @media (max-width: 64rem) {
    .ed-crumbs .ed-btn__label { display: none; }
  }
  @media (max-width: 48rem) {
    .workspace { padding: 1rem .5rem 5rem; }
  }
}

@layer utilities {
  .muted { color: var(--muted); }
  .serif { font-family: var(--font-text); }
  .stack { display: grid; gap: 1rem; align-content: start; }
  .stack-sm { display: grid; gap: .5rem; }
  .row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
  .grow { flex: 1 1 auto; }
  .mt-1 { margin-top: .5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; }
  .noscript { padding: 2rem; }
}

/* ---------- Stampa: solo il foglio ---------- */
@media print {
  .topbar, .sidebar, .toolbar, .ed-actions, .side-panel, .toasts, .sel-pop { display: none !important; }
  .app { display: block; }
  .main, .main--editor { max-width: none; padding: 0; display: block; }
  .ed-body, .workspace { display: block; height: auto !important; overflow: visible; padding: 0; background: none; }
  .paper-scale { width: auto !important; height: auto !important; }
  .paper { position: relative; transform: none !important; border: 0; }
  .ed-meta input, .ed-meta select { border: 0; }
}

/* ---------- Studio veloce: dashboard, barra comandi, concentrazione ---------- */
@layer views {




  .list--dense .list-row { min-height: 3rem; padding: .5rem .25rem; }
  .nb-mini { display: inline-grid; place-items: center; width: 1.75rem; height: 1.75rem; border-radius: 4px; background: var(--nb-color, var(--accent)); color: #0D1B2A; }

  .shortcuts { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1.25rem 2rem; }
  .shortcuts h3 { font-size: 1rem; font-weight: 750; margin-bottom: .375rem; }
  .shortcuts dl { display: grid; grid-template-columns: max-content 1fr; gap: .375rem .75rem; align-items: center; font-size: var(--fs-ui); }
  .shortcuts .kbd { font-size: .8125rem; color: var(--ink); background: var(--surface); }
}

@layer components {
  /* Barra laterale: + rapido per ogni quaderno */
  .nav-nb { position: relative; }
  .nav-nb a { padding-right: 2.75rem; }
  .nav-nb__add { position: absolute; right: .25rem; top: 50%; transform: translateY(-50%); display: grid !important; place-items: center; width: 2rem !important; min-height: 2rem !important; height: 2rem; padding: 0 !important; border-radius: var(--radius); color: var(--muted); opacity: 0; transition: opacity var(--duration-ui) ease-out; }
  .nav-nb:hover .nav-nb__add, .nav-nb__add:focus-visible { opacity: 1; }
  .nav-nb:hover .nav__count { opacity: 0; }
  .nav-nb__add:hover { background: var(--accent); color: var(--on-accent); }
  @media (hover: none) { .nav-nb__add { opacity: 1; } .nav-nb .nav__count { display: none; } }
  :root[data-rail="on"] .nav-nb__add { display: none !important; }

  .topsearch__kbd { cursor: pointer; font-family: var(--font-display); }
  .topsearch__kbd:hover { color: var(--ink); border-color: var(--field-border); }

  /* Barra dei comandi */
  dialog.palette { width: min(40rem, calc(100% - 2rem)); margin: 12vh auto auto; padding: 0; border: 1.5px solid var(--ink); }
  dialog.palette::backdrop { background: rgb(5 11 19 / .4); }
  .palette__search { display: flex; align-items: center; gap: .625rem; padding: 0 1rem; border-bottom: 1px solid var(--rule); color: var(--muted); }
  .palette__search input { flex: 1; min-height: 3.5rem; border: 0; background: transparent; font-size: 1.125rem; color: var(--ink); outline: none; }
  .palette__list { list-style: none; padding: .375rem; margin: 0; max-height: min(60vh, 28rem); overflow-y: auto; }
  .palette__list [role="option"] { display: flex; align-items: center; gap: .75rem; min-height: 2.75rem; padding: 0 .75rem; border-radius: var(--radius); cursor: pointer; }
  .palette__list [role="option"][aria-selected="true"] { background: var(--accent); color: var(--on-accent); }
  .palette__list [role="option"][aria-selected="true"] small { color: var(--on-accent); }
  .palette__label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
  .palette__list small { color: var(--muted); font-size: var(--fs-caption); white-space: nowrap; }
  .palette__group { padding: .625rem .75rem .25rem; font-size: var(--fs-caption); font-weight: 650; color: var(--muted); }
  .palette__empty { padding: 1rem .75rem; color: var(--muted); }
  .palette__foot { display: flex; flex-wrap: wrap; gap: 1rem; padding: .5rem 1rem; border-top: 1px solid var(--rule); font-size: var(--fs-caption); color: var(--muted); }
  .palette__foot kbd { font-family: var(--font-display); border: 1px solid var(--rule); border-radius: 3px; padding: 0 .3rem; margin-right: .25rem; }
}

@layer editor {
  /* Modalità concentrazione: solo il foglio e gli strumenti */
  :root[data-focus="on"] .app { grid-template-columns: minmax(0, 1fr) !important; }
  :root[data-focus="on"] .main { grid-column: 1; }
  :root[data-focus="on"] .sidebar, :root[data-focus="on"] .topsearch, :root[data-focus="on"] .ed-meta, :root[data-focus="on"] .crumbs, :root[data-focus="on"] .ed-crumbs { display: none !important; }
  :root[data-focus="on"] .ed-head { grid-template-columns: minmax(0, 1fr) auto; align-items: center; }
  :root[data-focus="on"] .ed-bar { order: 2; }
  :root[data-focus="on"] .ed-head { padding-block: .25rem; }
  :root[data-focus="on"] .ed-title { font-size: 1.375rem; }
  :root[data-focus="on"] .workspace { background: var(--surface); }
}

/* ---------- Foglio del quaderno: sempre chiaro, come la carta ---------- */
@layer editor {
  .paper, .compare__body, .paper-light {
    --bg: #F7F9FB; --paper: #FFFFFF; --surface: #E9EDF2; --ink: #0D1B2A; --muted: #4A5868; --rule: #C5CED8; --field-border: #6B7A8C;
    --link: #0B63C4; --focus: #0B63C4; --on-accent: #0D1B2A; --danger: #B3261E; --success: #1E7A46; --warning: #8A5A00;
    --grid-line: rgb(13 27 42 / .07); --line-line: rgb(11 99 196 / .13);
    --mark-yellow: #FFF0A6; --mark-green: #C7EBD2; --mark-blue: #BFDDFB; --mark-pink: #F8CFE0; --mark-orange: #FCDDB7;
    color-scheme: light;
    color: var(--ink);
  }
  .paper { background-color: var(--paper); }
  .compare__body { background: var(--paper); }
  :root[data-theme="dark"] .paper { border-color: #22324A; }
  :root[data-theme="dark"] .workspace { background: #0A1420; }

  /* Chi preferisce il foglio scuro lo sceglie nelle impostazioni */
  :root[data-paper-theme="follow"][data-theme="dark"] .paper,
  :root[data-paper-theme="follow"][data-theme="dark"] .compare__body {
    --bg: #0A1420; --paper: #0E1926; --surface: #111E2D; --ink: #E6ECF2; --muted: #9AA8B8; --rule: #22324A; --field-border: #7C8DA2;
    --link: #5AAAF5; --focus: #5AAAF5; --on-accent: #04101C; --grid-line: rgb(230 236 242 / .06); --line-line: rgb(90 170 245 / .14);
    --mark-yellow: #5C4F12; --mark-green: #1D4A31; --mark-blue: #17406B; --mark-pink: #5A2140; --mark-orange: #5E3A12;
    color-scheme: dark;
  }
}

/* ---------- Dashboard ---------- */
@layer views {
  .dh-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .75rem 1.5rem; margin-bottom: 1.25rem; }
  .dh-title { font-size: clamp(1.75rem, 1.3rem + 1.2vw, 2.25rem); font-weight: 800; font-stretch: 68%; line-height: 1; letter-spacing: -.015em; }
  .dh-sub { margin-top: .375rem; color: var(--muted); }
  .dh-k { padding: 0 .625rem; }
  .dh-k .kbd { font-size: .8125rem; color: var(--ink); }
  .dh-label { font-size: var(--fs-caption); font-weight: 650; color: var(--muted); }
  .dh-row-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: .625rem; }
  .dh-row-head .section-title { margin: 0; }
  .dh-row-head .muted { font-size: var(--fs-caption); font-variant-numeric: tabular-nums; }

  /* Riprendi: scheda + foglio bianco con le prime righe */
  .dh-top { display: grid; grid-template-columns: minmax(0, 1fr) minmax(17rem, 22rem); gap: 1.25rem; margin-bottom: 2rem; }
  .dh-resume { display: grid; grid-template-columns: minmax(12rem, 16rem) minmax(0, 1fr); gap: 1.5rem; padding: 1.25rem; min-height: 15rem; background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius-media); color: var(--ink); text-decoration: none; transition: border-color var(--duration-ui) ease-out; }
  a.dh-resume:hover { border-color: var(--ink); }
  a.dh-resume:hover .dh-sheet { transform: translateY(-2px); }
  .dh-resume__info { display: flex; flex-direction: column; gap: .375rem; min-width: 0; }
  .dh-resume__nb { display: inline-flex; align-items: center; gap: .4rem; font-weight: 650; margin-top: .5rem; }
  .dh-resume__title { font-size: 1.5rem; font-weight: 800; font-stretch: 72%; line-height: 1.08; overflow-wrap: anywhere; }
  .dh-resume__meta { color: var(--muted); font-size: var(--fs-ui); line-height: 1.45; }
  .dh-resume__go { margin-top: auto; display: inline-flex; align-items: center; gap: .25rem; font-weight: 650; color: var(--link); padding-top: .75rem; }
  .dh-resume--none { grid-template-columns: 1fr; min-height: 0; }

  .dh-sheet { --ink: #0D1B2A; --muted: #4A5868; position: relative; align-self: stretch; overflow: hidden; max-height: 15rem; padding: 1.25rem 1.5rem 1rem 2.25rem; background: #FFFFFF repeating-linear-gradient(to bottom, transparent 0 23px, rgb(11 99 196 / .12) 23px 24px); background-position: 0 1.1rem; border-radius: 4px; border-left: 4px solid var(--nb-color, var(--accent)); color: #0D1B2A; font-family: var(--font-text); font-size: .875rem; line-height: 24px; transition: transform var(--duration-move) var(--ease-out); }
  .dh-sheet p { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .dh-sheet p.is-head { font-family: var(--font-display); font-weight: 750; font-stretch: 80%; font-size: 1rem; color: #0B63C4; }

  /* Oggi */
  .dh-today { display: flex; flex-direction: column; gap: .5rem; padding: 1rem; border: 1px solid var(--rule); border-radius: var(--radius-media); }
  .dh-today__list { list-style: none; padding: 0; display: grid; gap: .25rem; }
  .dh-today__row { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: .625rem; width: 100%; min-height: 3rem; padding: .375rem .5rem; border-radius: var(--radius); text-align: left; color: var(--ink); }
  .dh-today__row:hover { background: var(--surface); }
  .dh-today__name { font-weight: 650; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .dh-today__name small { display: block; color: var(--muted); font-weight: 500; font-size: var(--fs-caption); overflow: hidden; text-overflow: ellipsis; }
  .dh-today__act { display: inline-flex; align-items: center; gap: .25rem; min-height: 2rem; padding: 0 .625rem; border-radius: var(--radius); border: 1px solid var(--field-border); font-size: var(--fs-caption); font-weight: 650; }
  .dh-today__row:hover .dh-today__act { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
  .dh-today__act.is-open { background: var(--ink); border-color: var(--ink); color: var(--bg); }
  .dh-today__rec { display: flex; align-items: center; gap: .5rem; margin-top: auto; padding: .625rem .5rem 0; border-top: 1px solid var(--rule); color: var(--muted); font-size: var(--fs-ui); font-weight: 600; text-decoration: none; }
  .dh-today__rec:hover { color: var(--ink); }

  /* Settimana */
  .dh-week { margin-bottom: 2rem; }
  .dh-days { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); border: 1px solid var(--rule); border-radius: var(--radius-media); overflow: hidden; }
  .dh-day { min-height: 7rem; padding: .625rem .625rem .75rem; display: flex; flex-direction: column; gap: .5rem; min-width: 0; }
  .dh-day + .dh-day { border-left: 1px solid var(--rule); }
  .dh-day.is-today { background: var(--surface); border-top: 3px solid var(--accent); padding-top: calc(.625rem - 3px); }
  .dh-day.is-future .dh-day__name { opacity: .6; }
  .dh-day__name { font-size: var(--fs-caption); color: var(--muted); font-weight: 600; }
  .dh-day__name b { color: var(--ink); font-size: 1rem; margin-left: .125rem; font-variant-numeric: tabular-nums; }
  .dh-day.is-today .dh-day__name b { color: var(--link); }
  .dh-day ul { list-style: none; padding: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: .25rem; font-size: var(--fs-caption); min-width: 0; }
  .dh-day ul li { min-width: 0; }
  .dh-day a { min-width: 0; overflow: hidden; display: flex; align-items: center; gap: .375rem; min-height: 1.75rem; padding: 0 .375rem; border-radius: 3px; color: var(--ink); text-decoration: none; font-weight: 600; background: var(--bg); border: 1px solid var(--rule); }
  .dh-day a span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .dh-day a:hover { border-color: var(--ink); }
  .dh-day__none { color: var(--rule); }
  @media (max-width: 56rem) {
    .dh-days { grid-template-columns: repeat(7, minmax(6.5rem, 1fr)); overflow-x: auto; }
  }

  /* Quaderni e altri appunti */
  .dh-bottom { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 2rem; }
  .dh-nbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(10.5rem, 1fr)); gap: .625rem; }
  .dh-nb { display: grid; grid-template-columns: auto minmax(0, 1fr); grid-template-rows: auto auto; column-gap: .625rem; align-items: center; padding: .75rem; border: 1px solid var(--rule); border-radius: var(--radius-media); color: var(--ink); text-decoration: none; min-height: 4rem; }
  .dh-nb:hover { border-color: var(--ink); }
  .dh-nb__spine { grid-row: 1 / 3; display: grid; place-items: center; width: 2.25rem; height: 2.75rem; border-radius: 4px; background: var(--nb-color, var(--accent)); color: #0D1B2A; }
  .dh-nb__name { font-weight: 750; font-stretch: 85%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .dh-nb__meta { font-size: var(--fs-caption); color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .dh-nb--new { grid-template-columns: auto 1fr; grid-template-rows: auto; border-style: dashed; border-color: var(--field-border); color: var(--muted); }
  .dh-nb--new:hover { color: var(--ink); }
  .dh-note { padding: .75rem 0; }
  .dh-act-title { margin: 1.5rem 0 .375rem; }
  .dh-act { list-style: none; padding: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; font-size: var(--fs-ui); }
  .dh-act li { min-width: 0; display: flex; justify-content: space-between; gap: 1rem; padding: .375rem 0; border-bottom: 1px solid var(--rule); }
  .dh-act span { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .dh-bottom > section { min-width: 0; }
  .chip-dot { flex: none; }
  .dh-act time { color: var(--muted); font-size: var(--fs-caption); white-space: nowrap; }

  .dh-empty { display: grid; grid-template-columns: 16rem minmax(0, 1fr); gap: 2rem; align-items: center; padding: 2rem; border: 1px dashed var(--field-border); border-radius: var(--radius-media); }
  .dh-empty h2 { font-size: 1.5rem; font-weight: 800; font-stretch: 72%; }
  .dh-empty p { color: var(--muted); font-family: var(--font-text); margin: .375rem 0 1rem; max-width: 52ch; }
  .dh-sheet--empty { height: 10rem; }

  @media (max-width: 72rem) { .dh-top { grid-template-columns: minmax(0, 1fr); } }
  @media (max-width: 56rem) {
    .dh-resume { grid-template-columns: minmax(0, 1fr); }
    .dh-sheet { max-height: 9rem; }
    .dh-bottom { grid-template-columns: minmax(0, 1fr); }
    .dh-empty { grid-template-columns: 1fr; }
  }
}

/* ---------- Appunto condiviso (pagina pubblica) ---------- */
@layer views {
  .share-page { min-height: 100dvh; background: var(--surface); }
  .share-top { display: flex; align-items: center; gap: 1rem; min-height: 3.5rem; padding: 0 var(--gutter); background: var(--bg); border-bottom: 1px solid var(--rule); }
  .share-top__note { margin-left: auto; color: var(--muted); font-size: var(--fs-caption); font-weight: 600; }
  .share-main { max-width: 61rem; margin: 0 auto; padding: 1.5rem 1rem 4rem; }
  .share-head { margin-bottom: 1rem; }
  .share-head__nb { display: inline-flex; align-items: center; gap: .4rem; font-weight: 650; color: var(--muted); }
  .share-head__title { margin-top: .25rem; font-size: clamp(1.75rem, 1.3rem + 1.4vw, 2.5rem); font-weight: 800; font-stretch: 68%; line-height: 1.05; letter-spacing: -.015em; }
  .share-head__meta { margin-top: .375rem; color: var(--muted); }
  .share-stage { width: 100%; }
  .share-stage .paper-scale { position: relative; margin: 0 auto; }
  .doc--readonly { cursor: default; }
  .doc--readonly ul[data-type="checklist"] > li::before { cursor: default; }
  .share-gate { max-width: 28rem; margin: 12vh auto 0; padding: 0 1rem; display: grid; gap: 1rem; }
  .share-gate__title { font-size: clamp(2rem, 1.5rem + 2vw, 2.75rem); font-weight: 800; font-stretch: 62%; line-height: .95; letter-spacing: -.02em; }
  .share-gate__text { color: var(--muted); font-family: var(--font-text); }
  @media print {
    .share-top { display: none; }
    .share-page { background: #fff; }
    .share-main { padding: 0; max-width: none; }
    .share-stage .paper-scale { width: auto !important; height: auto !important; }
    .share-stage .paper { position: relative; transform: none !important; border: 0; }
  }
}
.share-page .el, .share-page .ink { pointer-events: none !important; }
@layer components {
  .share-new { display: grid; gap: .75rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--rule); }
  .share-new__title { font-size: 1rem; font-weight: 750; margin-bottom: .25rem; }
  .share-list { list-style: none; padding: 0; display: grid; gap: .75rem; }
  .share-list li { padding: .75rem; border: 1px solid var(--rule); border-radius: var(--radius-media); display: grid; gap: .5rem; }
  .share-list li.is-new { border-color: var(--accent); }
  .share-link { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .5rem; align-items: center; }
  .share-link .input { min-height: 2.5rem; font-size: .875rem; font-family: var(--font-mono); }
  .share-meta { display: flex; flex-wrap: wrap; gap: .25rem 1rem; font-size: var(--fs-caption); color: var(--muted); }
  .share-actions { display: flex; flex-wrap: wrap; gap: .25rem; margin-left: -.625rem; }
}
@layer views {
  .stt-steps { list-style: none; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--rule); }
  .stt-step { display: grid; grid-template-columns: 5.5rem minmax(0, 1fr); gap: .75rem; padding: .875rem 0; border-bottom: 1px solid var(--rule); align-items: start; }
  .stt-step .badge { margin-top: .2rem; }
  .stt-step p { color: var(--muted); font-size: var(--fs-ui); overflow-wrap: anywhere; }
  .stt-cmd { display: flex; align-items: center; gap: .5rem; margin-top: .5rem; padding: .375rem .375rem .375rem .75rem; background: var(--surface); border-radius: var(--radius); }
  .stt-cmd code { flex: 1; font-size: .875rem; color: var(--ink); overflow-wrap: anywhere; }
  .stt-models { list-style: none; padding: 0; display: grid; gap: .5rem; }
  .stt-models li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1rem; align-items: center; padding: .75rem .875rem; border: 1px solid var(--rule); border-radius: var(--radius-media); }
  .stt-models li.is-installed { border-color: var(--field-border); }
  .stt-models p { color: var(--muted); font-size: var(--fs-ui); }
  .stt-models small { color: var(--muted); font-size: var(--fs-caption); font-variant-numeric: tabular-nums; }
  .stt-models__act { display: flex; align-items: center; gap: .5rem; }
}
@layer views {
  .login__title { margin-bottom: 1.75rem; }
  .login__or { display: flex; align-items: center; gap: .75rem; color: var(--muted); font-size: var(--fs-caption); }
  .login__or::before, .login__or::after { content: ""; flex: 1; border-top: 1px solid var(--rule); }
}
@layer components {
  .avatar { overflow: hidden; }
  .avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .avatar--xl { width: 5rem; height: 5rem; border-radius: var(--radius-media); font-size: 2rem; flex: none; }
  .avatar-edit { display: flex; align-items: center; gap: 1.25rem; }
  .avatar-edit label.button { cursor: pointer; }
}