/* Token di tema. Ogni colore usato dai componenti passa da qui: i valori fissi
   nel foglio erano scritti per il tema scuro e in chiaro davano campi neri con
   testo nero (chat e login). I rapporti di contrasto sono verificati in
   api/tests/test_accessibilita.py: cambiando un token il test lo dice. */
:root, [data-theme="dark"] {
  --bg: #0f1420; --panel: #182030; --ink: #e6ecf5; --muted: #8fa0b8;
  --accent: #4f9cff; --chip: #24304a; --ok: #37c37a; --danger: #ff6b6b;
  --warn: #f0b429;
  --bordo: #263049; --bordo-forte: #2b3752; --campo: #0c111c;
  --su-accento: #06101f; --focus: #ffd166;
}
[data-theme="light"] {
  --bg: #f4f6fb; --panel: #ffffff; --ink: #1a2233; --muted: #5b6b85;
  --accent: #1f57b0; --chip: #e6ecf9; --ok: #127a45; --danger: #c62828;
  --warn: #8a5200;
  --bordo: #d5dcea; --bordo-forte: #c3cde2; --campo: #ffffff;
  --su-accento: #ffffff; --focus: #8a4b00;
}
* { box-sizing: border-box; }
body {
  margin: 0; font: 15px/1.5 system-ui, sans-serif;
  background: var(--bg); color: var(--ink);
  display: flex; flex-direction: column; min-height: 100vh;
}

/* Tastiera: il focus si deve vedere sempre, su qualsiasi sfondo. */
:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 6px;
}

/* Primo stop della tabulazione: salta header e nav e va al contenuto. */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 20;
  background: var(--panel); color: var(--ink); padding: 10px 14px;
  border: 1px solid var(--bordo-forte); border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

header { padding: 14px 20px; background: var(--panel); border-bottom: 1px solid var(--bordo); }
h1 { font-size: 18px; margin: 0 0 8px; }
.badge {
  font-size: 11px; background: var(--chip); color: var(--accent);
  padding: 2px 8px; border-radius: 10px; vertical-align: middle;
}
/* Spia del layer LLM. Il colore non è l'unico segnale: c'è sempre anche il
   pallino e il testo ("LLM attivo" / "LLM degradato"), perché un badge che
   comunica solo col colore è illeggibile a chi non lo distingue. */
.llm-badge { cursor: help; }
.llm-badge::before { content: "\25CF"; margin-right: 5px; }
.llm-badge[data-state="ok"] { color: var(--ok); }
.llm-badge[data-state="degraded"] { color: var(--warn); }
.llm-badge[data-state="off"] { color: var(--muted); }
nav button {
  background: none; border: none; color: var(--muted);
  padding: 6px 12px; cursor: pointer; font-size: 14px; border-radius: 6px;
}
nav button.active, nav button[aria-selected="true"] { color: var(--ink); background: var(--chip); }
.theme-btn { float: right; }
.who { float: right; color: var(--muted); font-size: 13px; padding: 6px 8px; }
.lang-select {
  float: right; margin: 3px 4px 0; background: var(--panel); color: var(--ink);
  border: 1px solid var(--bordo-forte); border-radius: 6px; padding: 3px 6px; font-size: 13px;
}
/* Il pulsante che apre il menu esiste solo da telefono. */
.nav-toggle { display: none; }
main { flex: 1; padding: 18px 20px; max-width: 900px; width: 100%; margin: 0 auto; }
main:focus { outline: none; }
.login-form {
  max-width: 320px; margin: 60px auto; display: flex; flex-direction: column; gap: 10px;
  background: var(--panel); padding: 24px; border-radius: 10px; border: 1px solid var(--bordo);
}
.login-form h2 { margin: 0 0 6px; font-size: 16px; }
.login-form input {
  padding: 10px 12px; border-radius: 8px; border: 1px solid var(--bordo-forte);
  background: var(--campo); color: var(--ink);
}
.login-form button {
  padding: 10px 18px; border: none; border-radius: 8px;
  background: var(--accent); color: var(--su-accento); font-weight: 600; cursor: pointer;
}
.error { color: var(--danger); font-size: 13px; }
.wikilink, .cite-chip, .mention-title { color: var(--accent); cursor: pointer; text-decoration: none; }
.wikilink:hover, .cite-chip:hover, .mention-title:hover { text-decoration: underline; }
.filters { display: flex; gap: 8px; margin-bottom: 14px; }
.filters input {
  flex: 1; padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--bordo-forte); background: var(--campo); color: var(--ink);
}
.filters select {
  padding: 8px 10px; border-radius: 8px; border: 1px solid var(--bordo-forte);
  background: var(--panel); color: var(--ink);
}
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline-item {
  display: block; width: 100%; text-align: left;
  background: none; border: none; border-bottom: 1px solid var(--bordo);
  color: inherit; font: inherit; font-size: 13px;
  padding: 6px 0; cursor: pointer;
}
.timeline-date { color: var(--muted); margin-right: 8px; }
.mentions { list-style: none; margin: 8px 0 0; padding: 0; }
.mentions li { padding: 6px 0; border-bottom: 1px solid var(--bordo); }
.viewer {
  position: fixed; inset: 0; background: rgba(0,0,0,.6);
  display: flex; align-items: center; justify-content: center; z-index: 10;
}
.viewer[hidden] { display: none; }
.viewer-box {
  background: var(--panel); max-width: 720px; width: 92%; max-height: 82vh;
  overflow-y: auto; padding: 24px; border-radius: 12px; position: relative;
}
.viewer-close {
  position: absolute; top: 6px; right: 8px; background: none; border: none;
  color: var(--muted); font-size: 18px; cursor: pointer;
  min-width: 44px; min-height: 44px; border-radius: 8px;
}
.page-body { margin-top: 12px; line-height: 1.6; }

/* Primo avvio: stessa modale del viewer, ma i quattro passi devono restare
   leggibili anche su uno schermo corto, quindi la scatola scrolla da sola. */
.onboarding-box { max-width: 640px; }
.onboarding-steps { list-style: none; margin: 16px 0; padding: 0; }
.onboarding-step {
  display: flex; gap: 12px; padding: 12px 0;
  border-bottom: 1px solid var(--bordo);
}
.onboarding-step:last-child { border-bottom: none; }
.onboarding-step > div { flex: 1; min-width: 0; }
.onboarding-mark { color: var(--muted); font-size: 18px; line-height: 1.4; }
.onboarding-step.done .onboarding-mark { color: var(--ok, var(--accent)); }
.onboarding-step .user-form { margin-top: 8px; }
.onboarding-step select { min-height: 44px; }

/* Manuale utente: colonna di lettura stretta, il testo lungo non si legge a
   tutta larghezza su un monitor grande. */
.help { max-width: 68ch; line-height: 1.65; }
.help-section { margin: 0 0 28px; }
.help-section h3 { margin: 0 0 8px; }
.help-section p { margin: 0 0 10px; }
.help-section .admin-grid { margin-top: 12px; }
.messages { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; }
.msg { padding: 10px 14px; border-radius: 10px; max-width: 90%; white-space: pre-wrap; }
.msg.user { background: var(--accent); color: var(--su-accento); align-self: flex-end; }
.msg.assistant { background: var(--panel); align-self: flex-start; }
/* Risposta interrotta a metà: il testo già arrivato resta, con una nota. */
.msg-parziale { color: var(--danger); font-size: 12px; margin-top: 6px; }
.cite { font-size: 12px; color: var(--muted); margin-top: 6px; }
.cite code { background: var(--chip); padding: 1px 6px; border-radius: 5px; }
/* «Come ci sono arrivato»: chiuso di default, apre il percorso dell'agente.
   Deve leggersi come una nota a piè di risposta, non come un secondo blocco
   di contenuto: stessa taglia e stesso grigio delle citazioni. */
.percorso { margin-top: 8px; font-size: 12px; color: var(--muted); }
.percorso summary { cursor: pointer; }
.percorso .passo-motivo { margin: 6px 0 2px; font-style: italic; }
.percorso .passo-avviso { margin: 2px 0 6px; color: var(--accent); }
.percorso .passo-antipasto { margin: 2px 0 6px; }
.passi { margin: 4px 0 0; padding-left: 20px; display: grid; gap: 4px; }
.passo code { background: var(--chip); padding: 1px 6px; border-radius: 5px; }
.passo-args { word-break: break-all; }
.passo-esito, .passo-tempo { opacity: .8; }
.passo-pagine { padding-left: 2px; opacity: .8; }
/* Un passo andato male non si nasconde: si segna. */
.passo-errore code, .passo-sconosciuto code, .passo-illeggibile code,
.passo-ripetuto code, .passo-limite code { outline: 1px solid var(--accent); }
form { display: flex; gap: 8px; }
input[type=text], input[type=search] {
  flex: 1; padding: 10px 12px; border-radius: 8px;
  border: 1px solid var(--bordo-forte); background: var(--campo); color: var(--ink);
}
button[type=submit] {
  padding: 10px 18px; border: none; border-radius: 8px;
  background: var(--accent); color: var(--su-accento); font-weight: 600; cursor: pointer;
}
button[disabled] { opacity: .55; cursor: progress; }
.projects { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.card {
  background: var(--panel); border: 1px solid var(--bordo); border-radius: 10px;
  padding: 12px; cursor: pointer;
}
.card h3 { margin: 0 0 6px; font-size: 15px; }
.status { font-size: 12px; padding: 1px 8px; border-radius: 8px; background: var(--chip); }
.status.active { color: var(--ok); }
.detail { margin-top: 18px; }
.detail .page { font-size: 13px; color: var(--muted); padding: 3px 0; }
footer {
  padding: 10px 20px; color: var(--muted); font-size: 12px;
  border-top: 1px solid var(--bordo);
  display: flex; justify-content: space-between; gap: 10px;
}

/* Chat: elenco conversazioni a sinistra, thread a destra. */
.chat-layout { display: grid; grid-template-columns: 220px 1fr; gap: 16px; align-items: start; }
.chat-main { min-width: 0; }
.sessions {
  background: var(--panel); border: 1px solid var(--bordo); border-radius: 10px;
  padding: 10px; max-height: 70vh; overflow-y: auto;
}
.sessions-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.ghost-btn {
  background: var(--chip); color: var(--ink); border: none; border-radius: 8px;
  padding: 4px 10px; cursor: pointer; font-size: 13px;
}
.ghost-btn:hover { background: var(--accent); color: var(--su-accento); }
.session-list { list-style: none; margin: 10px 0 0; padding: 0; }
.session-item {
  display: flex; align-items: center; gap: 4px;
  padding: 6px 6px; border-radius: 8px; font-size: 13px;
}
.session-item:hover { background: var(--chip); }
.session-item.active { background: var(--chip); color: var(--accent); }
.session-title {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  background: none; border: none; color: inherit; font: inherit;
  text-align: left; cursor: pointer; padding: 4px 2px;
}
.session-action {
  background: none; border: none; color: var(--muted); cursor: pointer;
  font-size: 12px; padding: 2px 4px; border-radius: 6px;
}
.session-action:hover { color: var(--accent); }
.sessions-empty { color: var(--muted); font-size: 12px; padding: 6px 2px; }

/* Pannello admin: griglia di celle stato/statistiche. */
.admin-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px; margin: 10px 0 18px;
}
.admin-cell {
  background: var(--panel); border: 1px solid var(--bordo); border-radius: 10px;
  padding: 10px 12px; display: flex; flex-direction: column; gap: 4px;
}
.admin-cell strong { overflow-wrap: anywhere; }
.admin-actions { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
.admin-actions button {
  padding: 8px 14px; border: none; border-radius: 8px;
  background: var(--chip); color: var(--ink); cursor: pointer; font-size: 14px;
}
.admin-actions button:hover { background: var(--accent); color: var(--su-accento); }

/* Attenzioni: righe del vault che aspettano una decisione, per progetto. */
.attention-group { margin-bottom: 18px; }
.attention-group h3 { margin: 0 0 8px; font-size: 15px; }
.attention-items { list-style: none; margin: 0; padding: 0; }
.attention-item {
  background: var(--panel); border: 1px solid var(--bordo); border-radius: 10px;
  padding: 10px 12px; margin-bottom: 8px;
}
.attention-text { white-space: pre-wrap; overflow-wrap: anywhere; }
.attention-kind {
  font-size: 11px; padding: 1px 8px; border-radius: 8px;
  background: var(--chip); color: var(--muted);
}
.attention-kind.kind-marker { color: var(--accent); }
.attention-kind.kind-decision { color: var(--ok); }
.attention-kind.kind-anomaly { color: var(--danger); }

/* Scheda SEO: le sei viste del design approvato (T16c).
   Nessun colore scritto a mano: il mockup usava esadecimali del tema scuro,
   qui passano tutti dai token, e il tema chiaro viene di conseguenza.
   Il colore non parla mai da solo — ogni pastiglia di classe porta il
   pallino e il testo, come il badge del layer LLM. */
.schede { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }

/* Prendere in gestione un sito e' raro: il form sta chiuso, fuori dal flusso. */
.seo-nuovo { margin-bottom: 14px; }
.seo-nuovo > summary {
  cursor: pointer; display: inline-block; font-size: 13px;
  background: var(--chip); color: var(--ink);
  padding: 8px 14px; border-radius: 8px; list-style: none;
}
.seo-nuovo > summary::-webkit-details-marker { display: none; }
.seo-nuovo > summary::before { content: "+ "; }
.seo-nuovo[open] > summary { margin-bottom: 10px; }

/* -- Mattoni condivisi dalle sei viste -------------------------------------- */
.seo-spazio { flex: 1; }
.seo-chip {
  font-size: 11px; padding: 1px 8px; border-radius: 8px;
  background: var(--chip); color: var(--muted); white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
/* Pallino + testo: chi non distingue i colori legge comunque la classe. */
.seo-pallino::before { content: "\25CF"; margin-right: 5px; }
.seo-c-errore { color: var(--danger); }
.seo-c-anomalia { color: var(--warn); }
.seo-c-euristica { color: var(--accent); }
.seo-c-opportunita { color: var(--ok); }
.seo-btn {
  background: none; border: 1px solid var(--bordo-forte); color: var(--muted);
  border-radius: 8px; padding: 6px 12px; font-size: 12px; cursor: pointer;
}
.seo-btn:hover { color: var(--ink); border-color: var(--accent); }
.seo-btn-pieno {
  border: none; border-radius: 8px; padding: 9px 18px;
  font-size: 13px; font-weight: 600; cursor: pointer;
  background: linear-gradient(135deg, var(--accent),
    color-mix(in srgb, var(--accent) 74%, var(--ok)));
  color: var(--su-accento);
}
.seo-btn-pieno:hover { filter: brightness(1.12); }
.seo-link {
  background: none; border: none; color: var(--accent); cursor: pointer;
  font: inherit; font-size: 13px; padding: 4px 2px;
}
.seo-link:hover { text-decoration: underline; }
.seo-etichetta {
  font-size: 11px; color: var(--muted);
  text-transform: uppercase; letter-spacing: .05em;
}
.seo-testa {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 10px;
}
.seo-testa h3 { margin: 0; font-size: 18px; }

/* -- V6 · Stati vuoti: formula fissa a due righe ---------------------------- */
.seo-vuoto { display: grid; gap: 4px; margin: 10px 0; }
.seo-vuoto-cosa { color: var(--ink); }
.seo-vuoto-perche { color: var(--muted); }

/* -- V1 · Panoramica siti --------------------------------------------------- */
.seo-sito {
  background: var(--panel); border: 1px solid var(--bordo);
  border-left: 3px solid var(--bordo-forte); border-radius: 10px;
  padding: 14px 18px; font-size: 13px;
  display: flex; align-items: center; gap: 10px 24px; flex-wrap: wrap;
}
.seo-sito-chi { flex: 1 1 240px; min-width: 0; }
.seo-sito-nome { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.seo-sito-nome strong { font-size: 15px; overflow-wrap: anywhere; }
.seo-sito-azioni { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
/* Il bordo sinistro dice lo stato del SITO, non la classe di un rilievo:
   qui parla la riga intera. */
.seo-sito-decidere { border-left-color: var(--warn); }
.seo-sito-mai { border-left-color: var(--accent); }
.seo-sito-ritardo { border-left-color: var(--danger); }
.seo-sito-sospeso { opacity: .7; }
.seo-stato-decidere { color: var(--warn); }
.seo-stato-mai { color: var(--accent); }
.seo-stato-ritardo { color: var(--danger); }
.seo-stato-ordine { color: var(--ok); }
/* Quante decisioni aspettano te: l'unico elemento a colore pieno della vista. */
.seo-attesa {
  font-size: 12px; font-weight: 600; white-space: nowrap;
  background: var(--accent); color: var(--su-accento);
  padding: 6px 12px; border-radius: 9px;
  font-variant-numeric: tabular-nums;
}
.seo-senza-attesa { margin: 0; white-space: nowrap; }

/* -- V2 · Scheda sito ------------------------------------------------------- */
/* La copertura precede sempre l'elenco: un elenco corto su una scansione
   parziale non significa «poco da fare». Il testo dice tutto, il colore
   rinforza. */
.copertura {
  font-size: 13px; color: var(--muted); margin: 12px 0;
  padding: 10px 14px; border-radius: 9px;
  border: 1px solid var(--bordo);
}
.seo-copertura-parziale, .seo-copertura-corso {
  color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, transparent);
  background: color-mix(in srgb, var(--warn) 8%, transparent);
}
.seo-copertura-fallito {
  color: var(--danger); border-color: color-mix(in srgb, var(--danger) 45%, transparent);
  background: color-mix(in srgb, var(--danger) 8%, transparent);
}
.seo-copertura-completo {
  color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent);
  background: color-mix(in srgb, var(--ok) 7%, transparent);
}
.warn { color: var(--warn); font-size: 13px; margin: 0 0 8px; }
.seo-riepilogo { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.seo-fonti { display: flex; gap: 10px; flex-wrap: wrap; }
.seo-fonte-spenta, .seo-fonte-rifiutata { color: var(--danger); }
/* T17a. La riga della panoramica porta anche conteggi, fonti non attive e
   l'allarme di §9 (E49): stanno sotto il nome, in colonna, per non allargare
   la riga su schermo stretto. Il badge dell'applicazione a mano (E51) e la
   barra degli ordinamenti (E50) riusano le pastiglie e i bottoni che ci sono
   gia': un colore nuovo direbbe una cosa che il testo gia' dice. */
.seo-sito-conteggi { display: flex; flex-wrap: wrap; gap: 4px; }
.seo-sito-conteggi:empty { display: none; }
.seo-sito-fonti { display: block; }
.seo-allarme-riga { margin: 2px 0 0; font-size: .9em; }
.seo-a-mano { border-color: var(--warn); color: var(--warn); }
.seo-ordina { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 8px 0; }
.seo-ordina .seo-etichetta { margin-right: 2px; }
.seo-fonte-senza_dati { color: var(--warn); }
.seo-fonte-attiva { color: var(--ok); }

/* Corsia «da decidere ora»: accesa ma compatta. La decisione vera si prende
   nella coda, col diff sotto gli occhi: qui niente bottoni Approva. */
.seo-corsia {
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  border-radius: 12px; padding: 14px 18px; margin: 0 0 18px;
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}
.seo-corsia-testa {
  display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
  margin-bottom: 10px;
}
.seo-corsia-testa h4 { margin: 0; font-size: 14px; }
.seo-corsia-testa .cite { margin: 0; }
.seo-corsia-righe { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.seo-corsia-riga {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
  padding: 7px 10px; font-size: 13px;
  background: var(--panel); border: 1px solid var(--bordo); border-radius: 8px;
}
.seo-corsia-riga .cite { margin: 0; margin-left: auto; }
.seo-corsia-allarme { border-color: color-mix(in srgb, var(--danger) 45%, var(--bordo)); }
.seo-corsia-dove {
  color: var(--muted); min-width: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* Corsia «da leggere»: tre pesi diversi, stessa dignita'. */
.seo-tabs {
  display: flex; gap: 4px; flex-wrap: wrap;
  border-bottom: 1px solid var(--bordo); margin-bottom: 14px;
}
.seo-tab {
  background: none; border: none; color: var(--muted); cursor: pointer;
  font: inherit; font-size: 13px; padding: 8px 14px; border-radius: 8px 8px 0 0;
}
.seo-tab[aria-selected="true"] { color: var(--ink); background: var(--chip); }
.seo-tab-conta { color: var(--muted); font-variant-numeric: tabular-nums; }
.seo-pannello[hidden] { display: none; }
/* La tassonomia a quattro classi diventa navigazione, non solo etichetta. */
.seo-filtri { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.seo-chipf {
  font-size: 11px; padding: 2px 10px; border-radius: 10px; cursor: pointer;
  background: none; border: 1px solid var(--bordo-forte); color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.seo-chipf[aria-pressed="true"] { background: var(--chip); border-color: var(--accent); }

.rilievi { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 8px; }
.rilievo {
  background: var(--panel); border: 1px solid var(--bordo);
  border-left: 3px solid var(--bordo-forte); border-radius: 10px; padding: 10px 12px;
}
.rilievo[hidden] { display: none; }
.rilievo p { margin: 4px 0 0; }
.seo-rilievo-testa { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.rilievo .classe {
  font-size: 11px; padding: 1px 8px; border-radius: 8px;
  background: var(--chip); color: var(--muted);
}
.rilievo-alta { border-left-color: var(--danger); }
.rilievo-media { border-left-color: var(--warn); }
.rilievo-bassa { border-left-color: var(--accent); }
.divari, .azioni, .bozze { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 6px; }
.azioni li, .divari li, .bozze li {
  font-size: 13px; padding: 8px 10px; border-radius: 8px;
  background: var(--panel); border: 1px solid var(--bordo);
}
.seo-bozza-riga { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.seo-bozza-riga .cite { margin: 0; }

/* -- V3 · Coda decisionale -------------------------------------------------- */
.seo-proposta {
  display: block; background: var(--panel); border: 1px solid var(--bordo);
  border-radius: 12px; padding: 16px 20px; margin-bottom: 12px;
}
.seo-proposta-testa {
  display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 10px;
}
.seo-proposta-testa strong { font-size: 14.5px; }
.seo-proposta-testa .cite { margin: 0; }
/* Il diff e' il corpo della decisione: vecchio e nuovo, etichette esplicite,
   colori tenui che rinforzano ma non sostituiscono le parole. */
.seo-diff { display: grid; gap: 6px; margin-bottom: 10px; }
.seo-diff-riga {
  display: grid; grid-template-columns: 84px 1fr; gap: 12px;
  padding: 9px 12px; border-radius: 8px; align-items: baseline;
}
.seo-diff-valore { font-size: 13.5px; overflow-wrap: anywhere; }
.seo-diff-ora {
  background: color-mix(in srgb, var(--danger) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 25%, transparent);
}
.seo-diff-ora .seo-diff-valore { color: var(--muted); }
.seo-diff-nuovo {
  background: color-mix(in srgb, var(--ok) 7%, transparent);
  border: 1px solid color-mix(in srgb, var(--ok) 30%, transparent);
}
.seo-diff-nuovo .seo-etichetta { color: var(--ok); }
.seo-motivo { margin: 0 0 8px; font-size: 13px; display: grid; gap: 2px; }
.seo-evidenza { font-size: 12.5px; color: var(--muted); margin-bottom: 12px; }
.seo-evidenza summary { cursor: pointer; color: var(--accent); }
.seo-evidenza p { margin: 6px 0 0; overflow-wrap: anywhere; }
.seo-decisione {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 10px;
}
.seo-decisione .cite { margin: 0; }

/* -- V4 · Lettura bozza ----------------------------------------------------- */
.seo-lettura { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 32px; align-items: start; }
.seo-indice { position: sticky; top: 20px; font-size: 12.5px; color: var(--muted); }
.seo-indice .cite { margin: 6px 0 0; }
.seo-indice-voci { margin: 8px 0 14px; padding-left: 18px; display: grid; gap: 4px; }
/* Colonna di lettura a 68ch, come il manuale: 1.500 parole si leggono, non
   si scansionano. */
.seo-colonna { max-width: 68ch; font-size: 15px; line-height: 1.7; }
.seo-campo { margin: 0 0 6px; display: grid; gap: 2px; font-size: 13px; }
.seo-h1 { margin: 10px 0 6px; font-size: 26px; line-height: 1.25; }
.seo-h1::before { content: none; }
.seo-dek { margin: 0 0 16px; font-size: 16px; color: var(--muted); }
/* Il corpo resta il testo del modello: i paragrafi si impaginano, il
   markdown non si interpreta mai. */
.seo-par { margin: 0 0 10px; white-space: pre-wrap; overflow-wrap: anywhere; }
.seo-faq {
  margin: 18px 0; padding: 12px 16px; font-size: 13.5px;
  background: var(--panel); border: 1px solid var(--bordo); border-radius: 10px;
}
.seo-faq-d { margin: 8px 0 2px; color: var(--ink); }
.seo-faq-r { margin: 0; color: var(--muted); }
.seo-slug { background: var(--chip); padding: 2px 8px; border-radius: 5px; font-size: 12px; }
.seo-barra-decisione {
  margin-top: 20px; padding: 12px 18px; border-radius: 10px;
  background: var(--panel);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
}
.seo-barra-decisione .cite { margin: 0; }

/* -- V5 · Misure di un'azione ----------------------------------------------- */
.seo-misura {
  display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 20px;
  background: var(--panel); border: 1px solid var(--bordo); border-radius: 12px;
  padding: 16px 20px; margin-bottom: 12px; align-items: start;
}
.seo-misura h5 { margin: 0 0 10px; font-size: 14px; }
/* Su schermo stretto la tabellina scorre da sola, non sborda la pagina. */
.seo-misura-corpo { min-width: 0; overflow-x: auto; }
.seo-misure { width: 100%; border-collapse: collapse; font-size: 13px; }
.seo-misure caption { caption-side: bottom; text-align: left; padding-top: 8px; }
.seo-misure th, .seo-misure td { text-align: left; padding: 4px 8px 4px 0; }
.seo-misure thead th, .seo-misure tbody th {
  font-weight: 400; color: var(--muted); font-size: 11px;
  text-transform: uppercase; letter-spacing: .05em;
}
/* Numeri in colonna: stesso allineamento del rapporto d'uso. */
.seo-misure td { font-variant-numeric: tabular-nums; }
/* La freccia segue il giudizio, non il numero: sulla posizione «su» e'
   meglio anche se il valore scende. Accanto resta scritto perche'. */
.seo-verso-su { color: var(--ok); }
.seo-verso-giu { color: var(--danger); }
.seo-verso-pari, .seo-nulla { color: var(--muted); }
/* L'onesta' del confronto e' un requisito, non un dettaglio: le altre azioni
   della finestra stanno accanto ai numeri, non in un tooltip. */
.seo-altre { font-size: 12.5px; color: var(--muted); }
.seo-altre ul { list-style: none; margin: 6px 0 0; padding: 0; display: grid; gap: 6px; }
.seo-altre li {
  padding: 8px 10px; border-radius: 8px;
  background: var(--campo); border: 1px solid var(--bordo);
}

/* Rapporto d'uso: istogramma a barre in CSS puro, nessuna libreria di
   grafici per una decina di righe di dati. */
.usage-list { list-style: none; margin: 0 0 18px; padding: 0; }
.usage-row {
  display: flex; align-items: center; gap: 10px; padding: 3px 0; font-size: 12px;
}
.usage-day { min-width: 82px; color: var(--muted); font-variant-numeric: tabular-nums; }
.usage-bar {
  height: 10px; border-radius: 5px; background: var(--accent); min-width: 2px;
  flex: 0 0 auto;
}

/* Utenti: form di creazione + elenco dentro il pannello admin. */
.user-form { flex-wrap: wrap; margin-bottom: 10px; }
.user-form input {
  flex: 1; padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--bordo-forte); background: var(--campo); color: var(--ink);
}
.user-form select {
  padding: 8px 10px; border-radius: 8px; border: 1px solid var(--bordo-forte);
  background: var(--panel); color: var(--ink);
}
.user-list { list-style: none; margin: 0; padding: 0; }
.user-item {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 8px 0; border-bottom: 1px solid var(--bordo); font-size: 13px;
}
.user-item.inactive .user-name { color: var(--muted); text-decoration: line-through; }
.user-name { flex: 1; overflow-wrap: anywhere; }
.user-secret {
  background: var(--chip); border-radius: 10px; padding: 10px 12px; margin-bottom: 10px;
}
.user-secret code { font-size: 14px; overflow-wrap: anywhere; }

/* -- Stati vuoti: stessa forma ovunque (chat, vault, elenchi) --------------- */
.empty-state {
  color: var(--muted);
  font-size: 13px;
  padding: 18px 10px;
  text-align: center;
  border: 1px dashed var(--bordo-forte);
  border-radius: 10px;
}

/* -- Esploratore del vault ------------------------------------------------- */
.tree-folder { margin-bottom: 10px; }
.tree-toggle {
  width: 100%;
  display: flex;
  gap: 8px;
  align-items: center;
  text-align: left;
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--bordo-forte);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}
.tree-toggle .cite { margin-left: auto; }
.tree-pages { list-style: none; margin: 6px 0 0; padding: 0 0 0 14px; }
.tree-page {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 4px 2px;
  border-bottom: 1px solid var(--bordo);
}
.tree-page .cite { margin-left: auto; white-space: nowrap; }

/* -- Telefono --------------------------------------------------------------
   Regole dell'uso vero da telefono, non solo "sta nello schermo":
   - i campi partono da 16px, sotto ai quali iOS zooma da solo al focus e poi
     lascia la pagina ingrandita;
   - ogni bersaglio touch arriva a 44px (linea guida WCAG 2.5.5 / Apple HIG);
   - la barra di navigazione e l'elenco conversazioni si chiudono, altrimenti
     mangiano mezzo schermo prima di leggere la prima risposta;
   - le griglie larghe scorrono in orizzontale invece di sbordare. */
@media (max-width: 720px) {
  main { padding: 12px; }
  header { padding: 10px 12px; }
  h1 { font-size: 16px; }
  .chat-layout { grid-template-columns: 1fr; }
  .sessions { max-height: 34vh; }
  .msg { max-width: 100%; }
  .nav-toggle {
    display: inline-flex; align-items: center; gap: 8px;
    min-height: 44px; padding: 8px 12px;
    background: var(--chip); color: var(--ink); border: none; border-radius: 8px;
    font-size: 15px; cursor: pointer;
  }
  nav { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
  nav[hidden] { display: none; }
  nav button { min-height: 44px; padding: 10px 14px; font-size: 15px; }
  .theme-btn, .who, .lang-select { float: none; }
  .lang-select { min-height: 44px; }
  .who { width: 100%; }
  .filters { flex-wrap: wrap; }
  .filters input, .filters select { min-height: 44px; font-size: 16px; }
  input, select, textarea { font-size: 16px; }
  .login-form { margin: 24px auto; padding: 18px; }
  .login-form input, .user-form input, .user-form select { min-height: 44px; font-size: 16px; }
  button[type=submit], .login-form button { min-height: 44px; }
  .session-title { min-height: 44px; }
  .session-action { min-width: 44px; min-height: 44px; font-size: 15px; }
  .ghost-btn { min-height: 44px; padding: 8px 12px; }
  .admin-actions button { min-height: 44px; width: 100%; }
  .admin-grid { grid-template-columns: 1fr 1fr; }
  .projects { grid-template-columns: 1fr; }
  .user-item { gap: 8px; }
  .viewer-box { width: 100%; max-height: 92vh; border-radius: 0; padding: 18px; }
  .tree-toggle { min-height: 44px; }
  .tree-page { padding: 10px 2px; }
  /* Scheda SEO: le due griglie a colonne diventano una colonna sola, e ogni
     bersaglio della decisione arriva ai 44px. */
  .seo-lettura, .seo-misura { grid-template-columns: 1fr; gap: 14px; }
  .seo-indice { position: static; }
  .seo-diff-riga { grid-template-columns: 1fr; gap: 2px; }
  .seo-sito { align-items: flex-start; }
  .seo-btn, .seo-btn-pieno, .seo-link, .seo-tab, .seo-chipf { min-height: 44px; }
  .seo-nuovo > summary { min-height: 44px; }
  footer { flex-direction: column; gap: 4px; }
}

/* Chi ha chiesto meno animazioni al sistema non deve vederne nessuna. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---- T13: design «spaziale» ------------------------------------------------
   Niente colori nuovi: gradienti e ombre nascono dai token via color-mix,
   così il contrasto resta quello verificato dai test di accessibilità. */

body {
  background:
    radial-gradient(1100px 520px at 85% -10%,
      color-mix(in srgb, var(--accent) 13%, transparent), transparent 65%),
    radial-gradient(700px 420px at -10% 100%,
      color-mix(in srgb, var(--ok) 7%, transparent), transparent 60%),
    var(--bg);
  scrollbar-width: thin;
  scrollbar-color: var(--bordo-forte) transparent;
}

h1 { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
h1::before {
  content: ""; width: 11px; height: 11px; border-radius: 50%; flex: 0 0 auto;
  background: linear-gradient(135deg, var(--accent), var(--ok));
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 55%, transparent);
}

#tabs { display: flex; flex-wrap: wrap; gap: 3px; align-items: center; }
#tabs button[hidden] { display: none; }
#tabs button {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 8px 12px; border-radius: 9px;
  transition: background .15s ease, color .15s ease;
}
.tab-icon { width: 1.25em; text-align: center; flex: 0 0 auto; }
.nav-group { display: none; }

main > section:not([hidden]) { animation: vista-entra .18s ease-out; }
@keyframes vista-entra {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: none; }
}

.card { transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease; }
.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--bordo));
  box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 16%, transparent);
}

.msg { border: 1px solid var(--bordo); box-shadow: 0 1px 3px rgba(0, 0, 0, .16); }
.msg.user {
  border: none;
  background: linear-gradient(135deg, var(--accent),
    color-mix(in srgb, var(--accent) 62%, var(--ok)));
}

button[type=submit], .login-form button {
  background: linear-gradient(135deg, var(--accent),
    color-mix(in srgb, var(--accent) 74%, var(--ok)));
  transition: filter .15s ease;
}
button[type=submit]:hover, .login-form button:hover { filter: brightness(1.12); }

.viewer-box {
  border: 1px solid var(--bordo-forte);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .4);
  border-radius: 14px;
}

.md-titolo {
  display: block; font-weight: 650; margin: 12px 0 2px; color: var(--accent);
}

.admin-cell, .attention-item, .sessions {
  box-shadow: 0 1px 3px rgba(0, 0, 0, .12);
}

/* Sidebar: da desktop la barra diventa una colonna con gruppi etichettati. */
@media (min-width: 1024px) {
  body {
    display: grid;
    grid-template-columns: 252px minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr) auto;
  }
  header {
    grid-row: 1 / 3;
    position: sticky; top: 0; height: 100vh;
    overflow-y: auto;
    display: flex; flex-direction: column;
    padding: 18px 14px;
    border-right: 1px solid var(--bordo); border-bottom: none;
  }
  h1 { font-size: 17px; margin-bottom: 16px; }
  nav { display: flex; flex-direction: column; flex: 1; min-height: 0; }
  #tabs { flex-direction: column; align-items: stretch; gap: 2px; }
  #tabs button { width: 100%; text-align: left; padding: 9px 12px; font-size: 14px; }
  #tabs button.active, #tabs button[aria-selected="true"] {
    box-shadow: inset 3px 0 0 var(--accent);
  }
  .nav-group {
    display: block; margin: 12px 8px 4px; font-size: 11px; font-weight: 600;
    letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
  }
  #tabs .nav-group:first-child { margin-top: 4px; }
  #logout { margin-top: auto; }
  .theme-btn, .who, .lang-select { float: none; }
  #logout, .lang-select { margin-bottom: 8px; }
  /* Chi sei in testa alla colonna, non tagliato in fondo su schermi bassi. */
  .who { order: -1; padding: 0 2px 10px; }
  main { grid-column: 2; padding: 30px 40px; max-width: 1100px; }
  footer { grid-column: 2; }
}

/* Paper scientifici (research/): schede per tema, azioni in fondo. */
.paper-tema { margin-top: 18px; }
.paper-tema h3 { margin: 0 0 4px; font-size: 16px; }
.paper-card h3 { font-size: 14px; line-height: 1.3; }
.paper-card .cite { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.paper-azioni { margin-top: 8px; display: flex; gap: 12px; flex-wrap: wrap; }
.btn-link { font-size: 13px; text-decoration: underline; cursor: pointer; }