/*
  FX Hub — componenti shell (M2, docs/v2.3/20 §10).
  Login (split desktop / card mobile), shell (sidebar + topbar + contenuti),
  griglia card CSS Grid 4→2→1, responsive con sidebar→hamburger.
*/

/* ============================== LOGIN ============================== */

.fx-login {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

/* Colonna form */
.fx-login__form {
  display: grid;
  place-items: center;
  padding: 32px;
  background: var(--bg);
}
.fx-login__form-inner {
  width: 100%;
  max-width: 380px;
}
.fx-login__brand-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 32px;
}
.fx-login__title { font-size: 26px; margin-bottom: 8px; }
.fx-login__subtitle { color: var(--text-muted); margin-bottom: 28px; }

/* Pannello brand caldo (desktop) */
.fx-login__panel {
  display: grid;
  align-items: flex-end;
  padding: 48px;
  background:
    radial-gradient(120% 120% at 100% 0%, var(--primary) 0%, var(--primary-hover) 55%, #8f3a05 100%);
  color: var(--white);
}
.fx-login__panel-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
}
.fx-login__panel-tagline {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 500;
  line-height: 1.25;
  max-width: 14ch;
}

/* Form login — .fx-form / .fx-field / .fx-input / .fx-form__error sono ora i
   componenti CANONICI del kit (fx-kit.css). Qui restano SOLO gli extra del login
   senza equivalente nel kit: stato invalido, riga opzioni, checkbox, link. */
.fx-field.is-invalid .fx-input { border-color: var(--error); }

.fx-form__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
}
.fx-check { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.fx-check input { accent-color: var(--primary); width: 16px; height: 16px; }
.fx-link { font-weight: 500; }

/* Login responsive: sotto i 860px diventa una card centrata, niente pannello. */
@media (max-width: 860px) {
  .fx-login { grid-template-columns: 1fr; place-items: center; padding: 20px; }
  .fx-login__panel { display: none; }
  .fx-login__form {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-md);
    padding: 32px 24px;
    max-width: 420px;
    width: 100%;
  }
}

/* ============== WARNING SCADENZA SESSIONE (toast notyf) ============== */
/* Contenuto del toast persistente: messaggio + azione "Resta connesso". Su
   mobile (styleguide §3) il bottone occupa tutta la larghezza ed è ≥44px,
   così resta leggibile e comodo al tocco anche dentro il toast. */
.fx-session-warn { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.fx-session-warn__msg { font-weight: 600; }
.fx-session-warn__btn { flex: 0 0 auto; }
@media (max-width: 640px) {
  .fx-session-warn { width: 100%; }
  .fx-session-warn__btn { width: 100%; min-height: 44px; font-size: 16px; }
}

/* ============================== SHELL ============================== */

.fx-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
}

/* --- Sidebar --- */
.fx-sidebar {
  background: var(--gray-dark);
  color: var(--white);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.fx-sidebar__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--topbar-h);
  padding: 0 20px;
  flex: 0 0 auto;
}
.fx-sidebar__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: var(--white);
}
.fx-sidebar__close { display: none; color: var(--white); }

.fx-nav { padding: 12px; display: grid; gap: 18px; }
.fx-nav__group-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--gray-mid);
  padding: 0 12px;
  margin-bottom: 6px;
}
.fx-nav__link {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  border-radius: var(--r-md);
  color: var(--gray-mid);
  font-weight: 500;
  cursor: pointer;
  transition: background-color .12s ease, color .12s ease;
}
.fx-nav__link:hover { background: rgba(255, 255, 255, .07); color: var(--white); text-decoration: none; }
.fx-nav__link.is-active { background: var(--primary); color: var(--white); }
.fx-nav__icon { width: 20px; text-align: center; flex: 0 0 auto; }

/* Chip build in fondo alla sidebar: identità dello snapshot in esecuzione.
   Muted su fondo scuro, spinto in basso (margin-top:auto) — informativo. */
.fx-build-chip {
  margin-top: auto;
  padding: 12px 20px;
  font-size: 11px;
  line-height: 1.5;
  color: var(--gray-mid);
  border-top: 1px solid rgba(255, 255, 255, .07);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}
/* Stesso chip nella pagina di login (card su fondo chiaro): si toglie il bordo
   chiaro pensato per la sidebar scura e l'allineamento in basso (margin-top:auto);
   centrato e staccato dal form. Stesso testo muted/tabular del chip di shell. */
.fx-build-chip--login {
  margin-top: 24px;
  padding: 0;
  text-align: center;
  border-top: 0;
}
/* Icone nav su Font Awesome: base fa-regular (weight 400); lo stato attivo
   passa a solid (stesso codepoint, weight 900) per enfasi. */
.fx-nav__link.is-active .fx-nav__icon i { font-weight: 900; }

/* --- Colonna principale --- */
.fx-main { display: flex; flex-direction: column; min-width: 0; }

.fx-topbar {
  height: var(--topbar-h);
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 20px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.fx-topbar__burger { display: none; }
.fx-topbar__title {
  font-size: 19px;
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.fx-topbar__actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Selettore composto (0,0,2,0): batte .fx-iconbtn (0,0,1,0) di fx-kit.css che,
   caricato DOPO shell.css, vincerebbe per ordine sorgente a parità di specificità. */
.fx-iconbtn.fx-topbar__bell {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
}
.fx-topbar__bell .fa-bell {
  font-size: 20px;
  line-height: 1;
}
/* Bollina contatore notifiche del campanello. NON è la pill di stato: quella è
   .fx-badge nel kit (canonica, styleguide). Nomi distinti = nessuna collisione. */
.fx-notif-count {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 17px;
  height: 17px;
  padding: 0 4px;
  border-radius: 9px;
  background: var(--error);
  color: var(--white);
  font-size: 10px;
  font-weight: 700;
  line-height: 17px;
  text-align: center;
}

.fx-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: 8px;
  margin-left: 4px;
  border-left: 1px solid var(--border);
}
.fx-user__avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--petrol);
  color: var(--white);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
  flex: 0 0 auto;
}
.fx-user__meta { display: grid; line-height: 1.2; }
.fx-user__name { font-weight: 600; font-size: 14px; }
.fx-user__role { font-size: 12px; color: var(--text-muted); text-transform: capitalize; }

/* --- Contenuti --- */
.fx-content { padding: var(--gap); flex: 1 1 auto; outline: none; }
.fx-content:focus-visible { outline: none; }

.fx-page__head { margin-bottom: var(--gap); }
.fx-page__head h2 { font-size: 22px; margin-bottom: 4px; }

/* ====================== GRIGLIA CARD (§10.3) ====================== */
/*
  CSS Grid, max 4 colonne, righe infinite. Il programmatore compone con
  data-cols (1-4, clamp) e data-rows (unità o auto). Adattamento 4→2→1
  via SOLE media query: le card ridimensionano col contenitore.
*/
.fx-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: minmax(120px, auto);
  gap: var(--gap);
}

/* La superficie .fx-card (bianco, bordo, raggio 12, ombra) è canonica nel kit
   (fx-kit.css), globale. Qui SOLO ciò che è specifico della griglia dashboard e
   non ha equivalente nel kit: span di colonna, niente overflow, e il padding
   interno della card-widget (il kit lascia padding:0 perché i moduli gestiscono
   da sé la spaziatura via .fx-card__pad / toolbar). */
.fx-grid > .fx-card {
  grid-column: span 1;
  min-width: 0;
  padding: 20px;
}
.fx-card__title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 10px;
}

/* Corpo del widget (M5): contenitore del frammento iniettato nella card. Il
   contenuto HTML reale è opaco (lo compone la Hub App / il widget nativo). */
.fx-widget__body { min-height: 40px; }
.fx-widget__metric {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.1;
}
.fx-widget__sub { display: flex; gap: 8px; align-items: baseline; margin-top: 4px; }
.fx-widget__trend { color: var(--success); font-weight: 600; font-size: 13px; }

/* span colonne: clamp a 4 (oltre 4 ricade su 4). */
.fx-card[data-cols="1"] { grid-column: span 1; }
.fx-card[data-cols="2"] { grid-column: span 2; }
.fx-card[data-cols="3"] { grid-column: span 3; }
.fx-card[data-cols="4"] { grid-column: span 4; }

/* span righe: unità di griglia (auto = altezza naturale). */
.fx-card[data-rows="1"] { grid-row: span 1; }
.fx-card[data-rows="2"] { grid-row: span 2; }
.fx-card[data-rows="3"] { grid-row: span 3; }
.fx-card[data-rows="4"] { grid-row: span 4; }

/* ========================== RESPONSIVE ============================ */

/* Tablet: 2 colonne, sidebar ancora fissa. data-cols clampa a 2. */
@media (max-width: 1100px) {
  .fx-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fx-card[data-cols="3"],
  .fx-card[data-cols="4"] { grid-column: span 2; }
}

/* Mobile / rotazione: 1 colonna impilata, sidebar → hamburger a scomparsa. */
@media (max-width: 760px) {
  .fx-grid { grid-template-columns: minmax(0, 1fr); }
  .fx-card[data-cols] { grid-column: span 1; }

  .fx-shell { grid-template-columns: 1fr; }

  /* Sidebar fuori schermo, entra con .is-open (toggle hamburger). */
  .fx-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(82vw, var(--sidebar-w));
    z-index: 40;
    transform: translateX(-100%);
    transition: transform .22s ease;
    box-shadow: var(--shadow-lg);
  }
  .fx-shell.is-sidebar-open .fx-sidebar { transform: translateX(0); }
  .fx-sidebar__close { display: inline-flex; }

  .fx-shell__backdrop {
    position: fixed;
    inset: 0;
    background: rgba(11, 12, 14, .45);
    z-index: 30;
  }

  .fx-topbar__burger { display: inline-flex; }
  .fx-user__meta { display: none; }
}