:root {
  --verde:        #2d6a4f;
  --verde-scuro:  #1b4332;
  --verde-chiaro: #52b788;
  --verde-bg:     #d8f3dc;
  --arancio:      #e76f51;
  --giallo:       #f4a261;
  --blu:          #457b9d;
  --rosso:        #e63946;
  --grigio:       #6c757d;
  --bianco:       #ffffff;
  --sfondo:       #f0f2f5;
  --testo:        #212529;
  --testo-muted:  #6c757d;
  --bordo:        #dee2e6;
  --card-shadow:  0 2px 8px rgba(0,0,0,.07);
  --radius:       12px;
  --topbar-h:     56px;
  --bottombar-h:  64px;
  --touch-min:    44px;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--sfondo);
  color: var(--testo);
  font-size: 16px;
  line-height: 1.5;
  /* spazio per topbar + bottombar su mobile */
  padding-top: var(--topbar-h);
  padding-bottom: var(--bottombar-h);
}

/* ── TOPBAR MOBILE ──────────────────────────────────────────────── */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--topbar-h);
  background: var(--verde-scuro);
  color: white;
  display: flex;
  align-items: center;
  padding: 0 1rem;
  gap: .75rem;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
}
.topbar-brand {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: .4rem;
}
.topbar-brand span:first-child { font-size: 1.4rem; }
.topbar-user {
  font-size: .8rem;
  color: rgba(255,255,255,.75);
  white-space: nowrap;
}
.topbar-logout {
  color: rgba(255,255,255,.8);
  text-decoration: none;
  font-size: .85rem;
  padding: .3rem .5rem;
  border-radius: 6px;
  min-height: var(--touch-min);
  display: flex;
  align-items: center;
}

/* ── BOTTOM TAB BAR (mobile) ────────────────────────────────────── */
.bottombar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--bottombar-h);
  background: var(--verde-scuro);
  display: flex;
  align-items: stretch;
  box-shadow: 0 -2px 10px rgba(0,0,0,.2);
  /* safe area per iPhone con notch */
  padding-bottom: env(safe-area-inset-bottom);
}
.bottombar a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  text-decoration: none;
  color: rgba(255,255,255,.65);
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .02em;
  transition: color .15s, background .15s;
  padding: .4rem .2rem;
}
.bottombar a .tab-icon { font-size: 1.4rem; line-height: 1; }
.bottombar a.active,
.bottombar a:active {
  color: white;
  background: rgba(255,255,255,.1);
  border-radius: 10px;
  margin: 4px 2px;
}
.bottombar a.active .tab-icon { transform: scale(1.1); }

/* ── NAVBAR DESKTOP (≥768px) ────────────────────────────────────── */
.topbar-nav { display: none; }

@media (min-width: 768px) {
  body {
    padding-top: 60px;
    padding-bottom: 0;
  }
  .topbar { height: 60px; }
  .bottombar { display: none; }
  .topbar-nav {
    display: flex;
    gap: .2rem;
    flex: 1;
    margin-left: 1rem;
  }
  .topbar-nav a {
    color: rgba(255,255,255,.8);
    text-decoration: none;
    padding: .4rem .85rem;
    border-radius: 8px;
    font-size: .9rem;
    font-weight: 500;
    transition: background .15s, color .15s;
    white-space: nowrap;
  }
  .topbar-nav a:hover  { background: rgba(255,255,255,.12); color: white; }
  .topbar-nav a.active { background: var(--verde); color: white; }
  .topbar-user { display: block !important; }
}

/* ── LAYOUT ─────────────────────────────────────────────────────── */
.main-content {
  padding: .75rem;
  max-width: 960px;
  margin: 0 auto;
}
.main-guest {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
  padding-top: 0;
  padding-bottom: 0;
}

/* ── FLASH ──────────────────────────────────────────────────────── */
.flash-container { margin-bottom: .75rem; }
.flash {
  padding: .8rem 1rem;
  border-radius: var(--radius);
  margin-bottom: .5rem;
  font-size: .9rem;
  transition: opacity .5s;
}
.flash-success { background: #d1e7dd; color: #0a3622; }
.flash-danger  { background: #f8d7da; color: #58151c; }
.flash-warning { background: #fff3cd; color: #664d03; }
.flash-info    { background: #cff4fc; color: #055160; }

/* ── CARD ───────────────────────────────────────────────────────── */
.card {
  background: var(--bianco);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 1rem;
  margin-bottom: .75rem;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .75rem;
  padding-bottom: .75rem;
  border-bottom: 2px solid var(--verde-bg);
  gap: .5rem;
}
.card-title { font-size: 1rem; font-weight: 700; color: var(--verde-scuro); }

/* ── STAT CARDS ─────────────────────────────────────────────────── */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: .6rem;
  margin-bottom: .75rem;
}
.stat-card {
  background: var(--bianco);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: .9rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  border-left: 4px solid var(--verde);
}
.stat-card.warning { border-left-color: var(--arancio); }
.stat-card.danger  { border-left-color: var(--rosso); }
.stat-icon  { font-size: 1.6rem; flex-shrink: 0; }
.stat-valore { font-size: 1.3rem; font-weight: 700; line-height: 1.2; }
.stat-label  { font-size: .75rem; color: var(--testo-muted); }

/* ── PULSANTI (touch-friendly) ──────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .55rem 1rem;
  border-radius: 9px;
  border: none;
  cursor: pointer;
  font-size: .9rem;
  text-decoration: none;
  font-weight: 600;
  min-height: var(--touch-min);
  transition: filter .15s, transform .1s;
  white-space: nowrap;
}
.btn:active { transform: scale(.96); }
.btn:hover  { filter: brightness(1.08); }
.btn-primary   { background: var(--verde);         color: white; }
.btn-secondary { background: var(--grigio);        color: white; }
.btn-danger    { background: var(--rosso);         color: white; }
.btn-warning   { background: var(--giallo);        color: #333; }
.btn-success   { background: var(--verde-chiaro);  color: white; }
.btn-outline   { background: transparent; border: 2px solid var(--verde); color: var(--verde); }
.btn-sm {
  padding: .35rem .7rem;
  font-size: .8rem;
  min-height: 36px;
  border-radius: 7px;
}
.btn-block { width: 100%; }

/* ── FORM (touch-friendly) ──────────────────────────────────────── */
.form-group { margin-bottom: .9rem; }
.form-label { display: block; font-weight: 600; margin-bottom: .3rem; font-size: .9rem; }
.form-control {
  display: block;
  width: 100%;
  padding: .7rem .9rem;
  font-size: 1rem;       /* no zoom su iOS */
  border: 1.5px solid var(--bordo);
  border-radius: 9px;
  background: var(--bianco);
  color: var(--testo);
  min-height: var(--touch-min);
  transition: border-color .15s;
  -webkit-appearance: none;
}
.form-control:focus { outline: none; border-color: var(--verde-chiaro); box-shadow: 0 0 0 3px rgba(82,183,136,.2); }
select.form-control { cursor: pointer; }
textarea.form-control { min-height: 100px; resize: vertical; }
.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
@media (min-width: 600px) {
  .form-row { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .75rem; }
}

/* ── TABELLA → CARD-LIST su mobile ─────────────────────────────── */
.table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th { background: var(--verde-bg); color: var(--verde-scuro); font-weight: 700; padding: .6rem .8rem; text-align: left; white-space: nowrap; }
td { padding: .6rem .8rem; border-bottom: 1px solid var(--bordo); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--sfondo); }

/* Card-list per bollette su mobile */
.bolletta-card {
  background: var(--bianco);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: .9rem 1rem;
  margin-bottom: .6rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: .6rem;
  border-left: 4px solid var(--bordo);
}
.bolletta-card.da-pagare { border-left-color: var(--arancio); }
.bolletta-card.pagata    { border-left-color: var(--verde-chiaro); opacity: .85; }
.bolletta-card.scaduta   { border-left-color: var(--rosso); }
.bolletta-tipo-icon { font-size: 1.8rem; }
.bolletta-info { min-width: 0; }
.bolletta-tipo  { font-weight: 700; font-size: .95rem; }
.bolletta-sub   { font-size: .8rem; color: var(--testo-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bolletta-importo { font-size: 1.1rem; font-weight: 700; text-align: right; white-space: nowrap; }
.bolletta-azioni { grid-column: 1 / -1; display: flex; gap: .5rem; justify-content: flex-end; padding-top: .4rem; border-top: 1px solid var(--bordo); }

/* ── BADGE ──────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  padding: .2rem .6rem;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 700;
  white-space: nowrap;
}
.badge-success { background: #d1e7dd; color: #0a3622; }
.badge-danger  { background: #f8d7da; color: #58151c; }
.badge-warning { background: #fff3cd; color: #664d03; }
.badge-info    { background: #cff4fc; color: #055160; }
.badge-normal  { background: #e9ecef; color: #495057; }

/* ── MESSAGGI BACHECA ───────────────────────────────────────────── */
.messaggio-card {
  background: var(--bianco);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: .9rem 1rem;
  margin-bottom: .6rem;
  border-left: 4px solid var(--bordo);
}
.messaggio-card.urgente    { border-left-color: var(--rosso); }
.messaggio-card.importante { border-left-color: var(--arancio); }
.messaggio-card.normale    { border-left-color: var(--verde-chiaro); }
.messaggio-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .4rem;
}
.messaggio-testo { font-size: .95rem; line-height: 1.5; word-break: break-word; }
.messaggio-meta  { font-size: .78rem; color: var(--testo-muted); margin-top: .4rem; }

/* ── LOGIN PAGE ─────────────────────────────────────────────────── */
.login-box {
  background: var(--bianco);
  border-radius: var(--radius);
  box-shadow: 0 4px 24px rgba(0,0,0,.12);
  padding: 2rem 1.5rem;
  width: 100%;
  max-width: 380px;
  text-align: center;
}
.login-logo     { font-size: 3rem; margin-bottom: .4rem; }
.login-title    { font-size: 1.5rem; font-weight: 700; color: var(--verde-scuro); }
.login-subtitle { color: var(--testo-muted); font-size: .9rem; margin-bottom: 1.5rem; }

/* ── PAGE HEADER ────────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: .5rem;
  flex-wrap: wrap;
}
.page-title { font-size: 1.2rem; font-weight: 700; color: var(--verde-scuro); }

/* ── ACCESSO RAPIDO HOME ────────────────────────────────────────── */
.quick-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: .6rem;
  margin-bottom: .75rem;
}
.quick-card {
  background: var(--bianco);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 1.1rem .75rem;
  text-align: center;
  text-decoration: none;
  color: var(--testo);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  transition: transform .15s, box-shadow .15s;
  min-height: 80px;
  justify-content: center;
}
.quick-card:active { transform: scale(.96); }
.quick-card:hover  { box-shadow: 0 4px 14px rgba(0,0,0,.12); }
.quick-card-icon   { font-size: 1.8rem; }
.quick-card-label  { font-size: .8rem; font-weight: 700; color: var(--verde-scuro); line-height: 1.2; }

/* ── FILTRI COMPATTI ────────────────────────────────────────────── */
.filtri-bar {
  background: var(--bianco);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: .6rem .75rem;
  margin-bottom: .75rem;
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  align-items: center;
}
.filtri-bar select,
.filtri-bar input[type="number"] {
  flex: 1;
  min-width: 90px;
  padding: .45rem .7rem;
  font-size: .9rem;
  border: 1.5px solid var(--bordo);
  border-radius: 8px;
  background: var(--sfondo);
  color: var(--testo);
  min-height: 40px;
  -webkit-appearance: none;
}

/* ── GRAFICI (placeholder) ──────────────────────────────────────── */
.grafico-placeholder {
  background: var(--verde-bg);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  color: var(--verde-scuro);
  font-size: .9rem;
}

/* ── UTILITIES ──────────────────────────────────────────────────── */
.text-muted   { color: var(--testo-muted); }
.text-center  { text-align: center; }
.text-right   { text-align: right; }
.text-danger  { color: var(--rosso); }
.text-success { color: var(--verde); }
.text-warning { color: var(--arancio); }
.fw-bold      { font-weight: 700; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }
.d-flex { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.vuoto {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--testo-muted);
  font-size: .95rem;
}
.vuoto-icon { font-size: 3rem; margin-bottom: .5rem; }
.divider { border: none; border-top: 1px solid var(--bordo); margin: .75rem 0; }

/* ── SAFE AREA iPhone ───────────────────────────────────────────── */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  body { padding-bottom: calc(var(--bottombar-h) + env(safe-area-inset-bottom)); }
  .bottombar { padding-bottom: env(safe-area-inset-bottom); height: calc(var(--bottombar-h) + env(safe-area-inset-bottom)); }
}

/* ── DROPDOWN NAV (desktop) ─────────────────────────────────── */
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 180px;
  background: var(--verde-scuro);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,.3);
  overflow: hidden;
  z-index: 300;
}
.nav-dropdown.open .nav-dropdown-menu { display: block; }
.nav-dropdown-menu a {
  display: block;
  padding: .55rem 1rem;
  color: rgba(255,255,255,.85);
  text-decoration: none;
  font-size: .85rem;
  transition: background .12s;
}
.nav-dropdown-menu a:hover { background: var(--verde); color: white; }
.dropdown-divider {
  border-top: 1px solid rgba(255,255,255,.15);
  margin: .2rem 0;
}

/* ── OTTIMIZZAZIONI MOBILE BOLLETTE ─────────────────────────── */

/* Canvas grafico: altezza adattiva */
canvas {
  max-height: 220px;
}
@media (min-width: 768px) {
  canvas { max-height: 300px; }
}

/* Card bolletta: layout compatto su mobile */
.bolletta-card {
  background: var(--bianco);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: .75rem 1rem;
  margin-bottom: .6rem;
  display: grid;
  grid-template-columns: 2.2rem 1fr auto;
  grid-template-rows: auto auto;
  align-items: start;
  gap: .3rem .6rem;
  border-left: 4px solid var(--bordo);
}
.bolletta-tipo-icon {
  font-size: 1.5rem;
  grid-row: 1 / 2;
  padding-top: .1rem;
}
.bolletta-info {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
}
.bolletta-tipo {
  font-weight: 700;
  font-size: .9rem;
  line-height: 1.3;
}
.bolletta-sub {
  font-size: .78rem;
  color: var(--testo-muted);
  margin-top: .1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.bolletta-importo {
  font-size: 1rem;
  font-weight: 700;
  text-align: right;
  white-space: nowrap;
  grid-column: 3;
  grid-row: 1;
}
.bolletta-azioni {
  grid-column: 1 / -1;
  grid-row: 2;
  display: flex;
  gap: .4rem;
  justify-content: flex-end;
  padding-top: .4rem;
  border-top: 1px solid var(--bordo);
  margin-top: .1rem;
}

/* ── CAMPI CALCOLATI NEI FORM ───────────────────────────────── */
.calc-field {
  background: #f0f7f4 !important;
  color: var(--verde-scuro) !important;
  font-weight: 600;
  border-color: var(--verde-chiaro) !important;
}
.calc-badge {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  color: var(--verde);
  background: var(--verde-bg);
  padding: .1rem .4rem;
  border-radius: 10px;
  margin-left: .3rem;
  vertical-align: middle;
}