/* Material 3 (Material You) - tema chiaro/scuro */
:root {
  --md-primary: #2e6b5e;
  --md-on-primary: #ffffff;
  --md-primary-container: #b6ece0;
  --md-on-primary-container: #00201a;
  --md-secondary-container: #dbe5e0;
  --md-on-secondary-container: #101f19;

  --md-surface: #f6faf7;
  --md-surface-container-low: #f0f4f0;
  --md-surface-container: #eaefea;
  --md-surface-container-high: #e4e9e4;
  --md-surface-container-highest: #dee3de;
  --md-on-surface: #191c1a;
  --md-on-surface-variant: #404943;
  --md-outline: #707973;
  --md-outline-variant: #c0c9c2;

  --md-error: #ba1a1a;
  --md-on-error: #ffffff;
  --md-error-container: #ffdad6;
  --md-on-error-container: #410002;

  /* Accento oro/bronzo: per "oggi" e per la call-to-action principale (FAB) */
  --md-accent-gold: #a9812f;
  --md-on-accent-gold: #ffffff;

  /* Arancione: segnala i pagamenti "Contanti a Zanda" nel registro */
  --md-orange-bg: #ffdcb0;
  --md-on-orange: #6b3a00;

  /* Sfumatura verde metallico dei giorni: 0=lunedì (chiaro) .. 6=domenica (scuro) */
  --md-day-0: #d7e3d9; --md-day-0-text: #1f3b2c;
  --md-day-1: #bdd0c4; --md-day-1-text: #1f3b2c;
  --md-day-2: #a2bdae; --md-day-2-text: #17301f;
  --md-day-3: #87aa97; --md-day-3-text: #ffffff;
  --md-day-4: #6c9781; --md-day-4-text: #ffffff;
  --md-day-5: #517d67; --md-day-5-text: #ffffff;
  --md-day-6: #35604c; --md-day-6-text: #ffffff;

  --md-radius-sm: 8px;
  --md-radius-md: 12px;
  --md-radius-lg: 20px;
  --md-radius-full: 999px;

  --md-elevation-1: 0 1px 2px rgba(0, 0, 0, .30), 0 1px 3px 1px rgba(0, 0, 0, .15);
  --md-elevation-2: 0 1px 2px rgba(0, 0, 0, .30), 0 2px 6px 2px rgba(0, 0, 0, .15);
  --md-elevation-3: 0 1px 3px rgba(0, 0, 0, .30), 0 4px 8px 3px rgba(0, 0, 0, .15);
}

@media (prefers-color-scheme: dark) {
  :root {
    --md-primary: #9bd4c7;
    --md-on-primary: #003730;
    --md-primary-container: #14504a;
    --md-on-primary-container: #b6ece0;
    --md-secondary-container: #323f38;
    --md-on-secondary-container: #dbe5e0;

    --md-surface: #101410;
    --md-surface-container-low: #191c1a;
    --md-surface-container: #1d211e;
    --md-surface-container-high: #272b28;
    --md-surface-container-highest: #323632;
    --md-on-surface: #e1e3df;
    --md-on-surface-variant: #c0c9c2;
    --md-outline: #8a938d;
    --md-outline-variant: #404943;

    --md-error: #ffb4ab;
    --md-on-error: #690005;
    --md-error-container: #93000a;
    --md-on-error-container: #ffdad6;

    --md-accent-gold: #d9b96b;
    --md-on-accent-gold: #3a2b06;

    --md-orange-bg: #5a3600;
    --md-on-orange: #ffd7a8;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: "Roboto", "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

a { color: inherit; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 20px 96px;
}

/* ---------------------------------------------------------------- App bar */
.app-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  height: 64px;
  background: var(--md-surface-container-low);
  border-bottom: 1px solid var(--md-outline-variant);
}

.app-bar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 500;
  text-decoration: none;
  color: var(--md-on-surface);
  margin-right: 12px;
}

.app-bar .brand .material-icon {
  color: var(--md-primary);
}

.app-bar nav {
  display: flex;
  gap: 4px;
  flex: 1;
}

.app-bar nav a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--md-radius-full);
  text-decoration: none;
  color: var(--md-on-surface-variant);
  font-size: 14px;
  font-weight: 500;
  transition: background-color .15s ease;
}

.app-bar nav a:hover { background: var(--md-surface-container-high); }

.app-bar nav a.active {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

/* ---------------------------------------------------------------- Icons */
.material-icon {
  font-family: "Material Symbols Outlined";
  font-weight: normal;
  font-style: normal;
  font-size: 20px;
  line-height: 1;
  display: inline-flex;
  vertical-align: middle;
}

/* ---------------------------------------------------------------- Buttons */
.btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 20px;
  border-radius: var(--md-radius-full);
  border: none;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  background: transparent;
  color: var(--md-primary);
  transition: background-color .15s ease, box-shadow .15s ease;
}

.btn:hover { background: color-mix(in srgb, var(--md-primary) 8%, transparent); }

.btn-filled {
  background: var(--md-primary);
  color: var(--md-on-primary);
}
.btn-filled:hover {
  background: var(--md-primary);
  box-shadow: var(--md-elevation-1);
  filter: brightness(1.06);
}

.btn-tonal {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}
.btn-tonal:hover { filter: brightness(0.97); }

.btn-outlined {
  border: 1px solid var(--md-outline);
  color: var(--md-primary);
}
.btn-outlined:hover { background: color-mix(in srgb, var(--md-primary) 8%, transparent); }

.btn-danger { color: var(--md-error); }
.btn-danger:hover { background: color-mix(in srgb, var(--md-error) 8%, transparent); }

.btn-sm { height: 32px; padding: 0 14px; font-size: 13px; }

.btn:disabled { opacity: .4; cursor: default; pointer-events: none; }

/* Ripple */
.ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  animation: ripple-anim .5s linear;
  background: currentColor;
  opacity: .25;
  pointer-events: none;
}
@keyframes ripple-anim {
  to { transform: scale(2.6); opacity: 0; }
}

/* Floating action button */
.fab {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 30;
  width: 56px;
  height: 56px;
  border-radius: var(--md-radius-lg);
  background: var(--md-accent-gold);
  color: var(--md-on-accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: var(--md-elevation-3);
  transition: box-shadow .15s ease;
}
.fab:hover { box-shadow: var(--md-elevation-2); filter: brightness(1.05); }
.fab .material-icon { font-size: 24px; }

/* ---------------------------------------------------------------- Cards */
.card {
  background: var(--md-surface-container-low);
  border-radius: var(--md-radius-lg);
  padding: 20px;
  border: 1px solid var(--md-outline-variant);
  box-shadow: var(--md-elevation-1);
}

.card + .card { margin-top: 16px; }

.card-title {
  font-size: 16px;
  font-weight: 500;
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.titolo-sezione { font-size: 13px; font-weight: 500; color: var(--md-on-surface-variant); margin: 4px 0 8px; }
.grid-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.metric-card {
  background: var(--md-surface-container);
  border-radius: var(--md-radius-md);
  padding: 16px 18px;
}
.metric-card .label {
  font-size: 13px;
  color: var(--md-on-surface-variant);
  margin: 0 0 4px;
}
.metric-card .value {
  font-size: 26px;
  font-weight: 500;
  margin: 0;
}

/* ---------------------------------------------------------------- Chips / badges */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--md-radius-full);
  font-size: 12px;
  font-weight: 500;
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  white-space: nowrap;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chip-primary { background: var(--md-primary-container); color: var(--md-on-primary-container); }
.chip-error { background: var(--md-error-container); color: var(--md-on-error-container); }
.chip-orange { background: var(--md-orange-bg); color: var(--md-on-orange); }
.chip-outline { background: transparent; border: 1px solid var(--md-outline-variant); color: var(--md-on-surface-variant); }

/* ---------------------------------------------------------------- Status dot (luce on/off) */
.status-row { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.status-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--md-outline-variant);
  flex-shrink: 0;
}
.status-dot.on { background: var(--md-primary); }
.status-dot.alert { background: var(--md-error); }
.status-label { font-size: 13px; color: var(--md-on-surface-variant); }

input[type=checkbox] {
  width: 18px;
  height: 18px;
  accent-color: var(--md-primary);
  cursor: pointer;
}

/* ---------------------------------------------------------------- Progress bar */
.progress-track {
  height: 8px;
  border-radius: var(--md-radius-full);
  background: var(--md-surface-container-highest);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: var(--md-radius-full);
  background: var(--md-primary);
  transition: width .2s ease;
}
.progress-fill.low { background: var(--md-error); }

/* ---------------------------------------------------------------- Form fields */
label.field-label {
  display: block;
  font-size: 13px;
  color: var(--md-on-surface-variant);
  margin: 0 0 6px;
}

input[type=text], input[type=password], input[type=number], input[type=date], select, textarea {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  border-radius: var(--md-radius-sm);
  border: 1px solid var(--md-outline);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: 14px;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border: 2px solid var(--md-primary);
  padding: 0 13px;
}
textarea { height: auto; padding: 12px 14px; }

.field { margin-bottom: 16px; }
.field-row { display: flex; gap: 12px; flex-wrap: wrap; }
.field-row .field { flex: 1; min-width: 140px; }

/* ---------------------------------------------------------------- Search */
.search-box {
  position: relative;
  max-width: 320px;
  margin-bottom: 16px;
}
.search-box .material-icon {
  position: absolute;
  left: 12px;
  top: 12px;
  color: var(--md-on-surface-variant);
}
.search-box input { padding-left: 40px; }

/* ---------------------------------------------------------------- Student list */
.student-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--md-radius-md);
  text-decoration: none;
  color: var(--md-on-surface);
  transition: background-color .15s ease;
}
.student-row:hover { background: var(--md-surface-container); }

.avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  font-size: 13px;
  flex-shrink: 0;
}

.student-row .name { font-weight: 500; }
.student-row .meta { font-size: 12px; color: var(--md-on-surface-variant); }

/* ---------------------------------------------------------------- Month nav */
.month-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
}
.month-nav .month-label { font-size: 17px; font-weight: 500; min-width: 160px; text-align: center; }
.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.icon-btn:hover { background: var(--md-surface-container-high); }

/* ---------------------------------------------------------------- Sfumatura verde metallico per giorno della settimana */
.wd-0 { --wd: var(--md-day-0); --wd-text: var(--md-day-0-text); }
.wd-1 { --wd: var(--md-day-1); --wd-text: var(--md-day-1-text); }
.wd-2 { --wd: var(--md-day-2); --wd-text: var(--md-day-2-text); }
.wd-3 { --wd: var(--md-day-3); --wd-text: var(--md-day-3-text); }
.wd-4 { --wd: var(--md-day-4); --wd-text: var(--md-day-4-text); }
.wd-5 { --wd: var(--md-day-5); --wd-text: var(--md-day-5-text); }
.wd-6 { --wd: var(--md-day-6); --wd-text: var(--md-day-6-text); }

/* ---------------------------------------------------------------- Registro presenze grid */
.registro-wrap {
  overflow-x: auto;
  border-radius: var(--md-radius-lg);
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container-low);
}
table.registro {
  border-collapse: collapse;
  width: 100%;
}
table.registro th, table.registro td {
  padding: 0;
  text-align: center;
}
table.registro thead th {
  position: sticky;
  top: 0;
  background: var(--md-surface-container-high);
  font-size: 11px;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  padding: 8px 4px;
  z-index: 2;
}
table.registro thead th[class*="wd-"] {
  background: var(--wd);
  color: var(--wd-text);
}
table.registro thead th.today {
  box-shadow: inset 0 0 0 2px var(--md-accent-gold);
}
table.registro tfoot td {
  background: var(--md-surface-container-high);
  border-top: 2px solid var(--md-outline-variant);
  padding: 8px 4px;
  color: var(--md-on-surface);
}
table.registro tfoot td.student-col,
table.registro tfoot td.abbonamento-col,
table.registro tfoot td.scaduto-col {
  background: var(--md-surface-container-high);
}
table.registro th.student-col, table.registro td.student-col,
table.registro th.abbonamento-col, table.registro td.abbonamento-col,
table.registro th.scaduto-col, table.registro td.scaduto-col {
  position: sticky;
  z-index: 3;
  background: var(--md-surface-container-low);
  text-align: left;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
table.registro th.student-col, table.registro td.student-col { left: 0; width: 160px; max-width: 160px; }
table.registro th.abbonamento-col, table.registro td.abbonamento-col { left: 160px; width: 150px; max-width: 150px; }
table.registro th.scaduto-col, table.registro td.scaduto-col { left: 310px; width: 150px; max-width: 150px; border-right: 1px solid var(--md-outline-variant); }
table.registro td.abbonamento-col, table.registro td.scaduto-col { font-weight: 400; }
table.registro thead th.student-col, table.registro thead th.abbonamento-col, table.registro thead th.scaduto-col { z-index: 4; }
table.registro tbody tr:hover td { background: var(--md-surface-container); }
table.registro tbody tr:hover td.student-col,
table.registro tbody tr:hover td.abbonamento-col,
table.registro tbody tr:hover td.scaduto-col { background: var(--md-surface-container); }

.day-cell {
  width: 34px;
  height: 34px;
  padding: 2px !important;
}
.day-toggle {
  width: 28px;
  height: 28px;
  border-radius: var(--md-radius-sm);
  border: 1px solid var(--md-outline-variant);
  background: transparent;
  color: transparent;
  cursor: pointer;
  font-size: 11px;
  transition: background-color .1s ease, border-color .1s ease;
}
.day-toggle:hover { border-color: var(--md-primary); }
.day-toggle[class*="wd-"] {
  background: color-mix(in srgb, var(--wd) 18%, transparent);
  border-color: color-mix(in srgb, var(--wd) 55%, transparent);
}
.day-toggle.present {
  background: var(--md-primary);
  border-color: var(--md-primary);
  color: var(--md-on-primary);
}
.day-toggle[class*="wd-"].present {
  background: var(--wd);
  border-color: var(--wd);
  color: var(--wd-text);
}
.day-toggle.today-col {
  box-shadow: inset 0 0 0 2px var(--md-accent-gold);
}

/* ---------------------------------------------------------------- Calendar (student detail) */
.mini-calendar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}
.mini-calendar .dow {
  text-align: center;
  font-size: 11px;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  padding: 4px 0;
}
.mini-calendar .dow[class*="wd-"] { color: color-mix(in srgb, var(--wd) 60%, var(--md-on-surface) 40%); }
.mini-calendar .day {
  aspect-ratio: 1;
  border-radius: var(--md-radius-sm);
  border: 1px solid var(--md-outline-variant);
  background: transparent;
  color: var(--md-on-surface);
  font-size: 12px;
  cursor: pointer;
}
.mini-calendar .day[class*="wd-"] {
  background: color-mix(in srgb, var(--wd) 16%, transparent);
  border-color: color-mix(in srgb, var(--wd) 45%, transparent);
}
.mini-calendar .day.present { background: var(--md-primary); color: var(--md-on-primary); border-color: var(--md-primary); }
.mini-calendar .day[class*="wd-"].present { background: var(--wd); color: var(--wd-text); border-color: var(--wd); }
.mini-calendar .day.today { box-shadow: inset 0 0 0 2px var(--md-accent-gold); }
.mini-calendar .day.empty { visibility: hidden; }

/* ---------------------------------------------------------------- Misc */
.text-muted { color: var(--md-on-surface-variant); }
.divider { height: 1px; background: var(--md-outline-variant); border: none; margin: 16px 0; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.stack { display: flex; flex-direction: column; gap: 10px; }
.empty-state { text-align: center; padding: 60px 20px; color: var(--md-on-surface-variant); }
.empty-state .material-icon { font-size: 40px; margin-bottom: 12px; }

form.inline { display: inline; }

/* ---------------------------------------------------------------- Barra utente (testata) */
.utente-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.utente-nome {
  font-size: 13px;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------------------------------------------------------------- Schermata di accesso */
.accesso-schermo {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.accesso-card {
  width: 100%;
  max-width: 360px;
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-lg);
  box-shadow: var(--md-elevation-1);
  padding: 28px 26px;
}
.accesso-titolo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 500;
  color: var(--md-on-surface);
  margin-bottom: 2px;
}
.accesso-titolo .material-icon { color: var(--md-primary); font-size: 26px; }
.accesso-errore {
  background: var(--md-error-container);
  color: var(--md-on-error-container);
  border-radius: var(--md-radius-sm);
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 16px;
}

.avviso-ok {
  background: var(--md-primary-container, #cfe8d8);
  color: var(--md-on-primary-container, #0b2915);
  border-radius: var(--md-radius-sm);
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 16px;
}

[hidden] { display: none !important; }

.avviso-mese {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--md-radius-sm);
  background: var(--md-orange-bg);
  color: var(--md-on-orange);
  text-decoration: none;
  margin-bottom: 12px;
  font-size: 13px;
}

/* ---------------------------------------------------------------- Calendario */
.cal-legenda {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--md-on-surface-variant);
  margin: 12px 0;
}
.cal-mese { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
.cal-dow { text-align: center; font-size: 11px; font-weight: 500; color: var(--md-on-surface-variant); padding: 4px 0; }
.cal-giorno {
  min-height: 76px;
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-sm);
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  text-decoration: none;
  color: var(--md-on-surface);
  background: var(--md-surface-container-low);
  overflow: hidden;
}
.cal-giorno.vuoto { visibility: hidden; }
.cal-giorno.oggi { box-shadow: inset 0 0 0 2px var(--md-accent-gold); }
.cal-numero { font-size: 12px; font-weight: 500; }
.cal-barrette { display: flex; flex-direction: column; gap: 2px; }
.barretta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 16px;
  padding: 0 4px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  line-height: 1;
  vertical-align: middle;
}
.cal-barrette .barretta { width: 100%; }
.barretta.mia { background: var(--md-primary); color: var(--md-on-primary); }
.barretta.altrui { background: var(--md-outline-variant); color: var(--md-on-surface); }
.barretta.annullata { opacity: .45; text-decoration: line-through; }
/* Calendario: il colore di chi insegna (come nel palinsesto); le proprie col bordo. */
.barretta[class*="colore-"]:not(.pieno) { background: var(--col-bg); color: var(--col-testo); }
.barretta.mia[class*="colore-"]:not(.pieno) { box-shadow: inset 0 0 0 1.5px var(--col-testo); }
.cal-legenda-voce { display: inline-flex; align-items: center; gap: 4px; margin-right: 10px; }
.cal-legenda { flex-wrap: wrap; }
.lezione-riga { text-decoration: none; color: inherit; padding: 8px 0; border-bottom: 1px solid var(--md-outline-variant); flex-wrap: wrap; }
.lezione-riga:last-child { border-bottom: none; }
.lezione-contenitore { display: flex; align-items: center; gap: 8px; }
.lezione-contenitore .lezione-riga { flex: 1; min-width: 0; }
.lezione-riga.annullata { opacity: .6; }

.appello-riga {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-sm);
  background: transparent;
  color: var(--md-on-surface);
  font-size: 14px;
  cursor: pointer;
  text-align: left;
}
.appello-riga.presente { background: var(--md-primary); color: var(--md-on-primary); border-color: var(--md-primary); }

.scelta-sfondo {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.scelta-box {
  background: var(--md-surface, #fff);
  border-radius: var(--md-radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 240px;
  box-shadow: var(--md-elevation-1);
}

/* ---------------------------------------------------------------- Righe apribili (pagamenti, utenti) */
.titolo-riga { border-bottom: 1px solid var(--md-outline-variant); padding: 4px 0 8px; }
.titolo-riga:last-child { border-bottom: none; }
.titolo-riga summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  cursor: pointer;
  list-style: none;
  padding: 6px 0;
  font-size: 14px;
}
.titolo-riga summary::-webkit-details-marker { display: none; }
.titolo-riga[open] summary { margin-bottom: 6px; }
.titolo-riga form { margin: 8px 0; }

/* Palinsesto come agenda: griglia oraria sul computer, elenco per giorno sul telefono. */
.agenda-griglia { overflow-x: auto; }
.agenda-testata, .agenda-corpo { display: grid; grid-template-columns: 44px repeat(7, minmax(110px, 1fr)); min-width: 814px; }
.agenda-testata { font-size: 12px; font-weight: 500; color: var(--md-on-surface-variant); text-align: center; padding-bottom: 6px; }
.agenda-corpo { height: 680px; border: 1px solid var(--md-outline-variant); border-radius: var(--md-radius-sm); background: var(--md-surface); }
.agenda-ore { position: relative; font-size: 11px; color: var(--md-outline); }
.agenda-ore span { position: absolute; left: 4px; transform: translateY(-50%); }
.agenda-ore span:first-child { transform: none; }
.agenda-giorno { position: relative; border-left: 1px solid var(--md-outline-variant); }
.agenda-linea { position: absolute; left: 0; right: 0; border-top: 1px dashed var(--md-outline-variant); opacity: .6; }
.orario-blocco {
  position: absolute;
  box-sizing: border-box;
  padding: 2px;
}
.orario-blocco > .orario-testo {
  display: flex;
  flex-direction: column;
  gap: 2px;
  height: 100%;
  box-sizing: border-box;
  padding: 4px 26px 4px 6px;
  border-radius: 6px;
  overflow: hidden;
  font-size: 12px;
  line-height: 1.25;
  text-decoration: none;
  color: var(--md-on-primary-container);
  background: var(--md-primary-container);
}
/* Il colore di chi insegna (pagina Utenti). Il doppione tiene il suo colore e ha il bordo
   tratteggiato rosso: col colore pieno si confonderebbe con un insegnante. */
.orario-blocco[class*="colore-"] > .orario-testo, .orario-riga[class*="colore-"] { background: var(--col-bg); color: var(--col-testo); }
.orario-blocco.doppione > .orario-testo, .orario-riga.doppione { outline: 2px dashed var(--md-error); outline-offset: -2px; }
.barretta.pieno { background: var(--col-testo); color: var(--col-bg); }
.chip[class*="colore-"] { background: var(--col-bg); color: var(--col-testo); border: none; }
.agenda-legenda { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.colore-scelta { margin: 4px 0 12px; }
.colore-opzioni { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 4px; }
.colore-campione {
  width: 32px; height: 32px; border-radius: 50%; cursor: pointer;
  background: var(--col-bg); color: var(--col-testo);
  border: 2px solid var(--col-testo);
  display: inline-flex; align-items: center; justify-content: center; padding: 0;
}
.colore-campione.scelto { box-shadow: 0 0 0 3px var(--md-surface-container-low), 0 0 0 5px var(--col-testo); }
.colore-campione .material-icon { font-size: 18px; }
.colore-salvia  { --col-bg: #c4ecd9; --col-testo: #0b3b2a; }
.colore-blu     { --col-bg: #d3e3fd; --col-testo: #0b2f6b; }
.colore-viola   { --col-bg: #e6dcff; --col-testo: #33126e; }
.colore-rosa    { --col-bg: #ffd9e6; --col-testo: #6b0f36; }
.colore-pesca   { --col-bg: #ffdcc8; --col-testo: #6a2a00; }
.colore-giallo  { --col-bg: #fbeaa0; --col-testo: #4f3d00; }
.colore-azzurro { --col-bg: #c6eef7; --col-testo: #00404c; }
.colore-sabbia  { --col-bg: #e9e1cf; --col-testo: #3c3322; }
@media (prefers-color-scheme: dark) {
  .colore-salvia  { --col-bg: #1f4d3b; --col-testo: #c4ecd9; }
  .colore-blu     { --col-bg: #1d3a6e; --col-testo: #d3e3fd; }
  .colore-viola   { --col-bg: #3e2b6e; --col-testo: #e6dcff; }
  .colore-rosa    { --col-bg: #6b2342; --col-testo: #ffd9e6; }
  .colore-pesca   { --col-bg: #6a3314; --col-testo: #ffdcc8; }
  .colore-giallo  { --col-bg: #5a4a08; --col-testo: #fbeaa0; }
  .colore-azzurro { --col-bg: #0d4d59; --col-testo: #c6eef7; }
  .colore-sabbia  { --col-bg: #4a4232; --col-testo: #e9e1cf; }
}
.orario-blocco .orario-cestino { position: absolute; top: 2px; right: 2px; }
.orario-blocco .icon-btn { width: 28px; height: 28px; color: inherit; }
.orario-blocco .icon-btn .material-icon { font-size: 18px; }
.orario-ore { font-weight: 500; }
/* Due orari affiancati: solo l'inizio, l'iniziale e la nota; il cestino in basso. */
.orario-blocco.stretto > .orario-testo { padding-right: 4px; }
.orario-blocco.stretto .orario-fine,
.orario-blocco.stretto .orario-nome,
.orario-blocco.stretto .orario-doppione { display: none; }
.orario-blocco.stretto .orario-cestino { top: 19px; }
.orario-blocco.stretto .icon-btn { width: 24px; height: 24px; }
.orario-chi { display: flex; align-items: center; gap: 4px; }
.orario-nota { font-size: 11px; font-weight: 500; }
a.orario-testo[href]:hover { filter: brightness(.95); }
.agenda-elenco { display: none; }
.agenda-elenco-giorno { font-size: 13px; font-weight: 500; color: var(--md-on-surface-variant); margin: 12px 0 4px; }
.agenda-elenco-giorno:first-child { margin-top: 0; }
.orario-riga { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-bottom: 1px solid var(--md-outline-variant); border-radius: 6px; }
.orario-riga > .orario-testo { flex: 1; display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; font-size: 14px; text-decoration: none; color: inherit; }
/* Chiusura, «Lezioni per studente»: nome a sinistra, con chi a destra; su schermo stretto
   i nomi degli insegnanti vanno a capo sotto quello dello studente. */
.riga-studente-mese {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 4px 10px;
  font-size: 13px;
}
.riga-studente-mese .con-chi { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; }
.riga-studente-mese .chip { font-size: 12px; }
/* Scheda studente: le eccezioni scritte sotto le formule (un carnet in pausa). */
.eccezioni { margin: 0 0 14px; }
.eccezioni p {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  font-size: 13px;
  margin: 0 0 6px;
  padding: 8px 10px;
  border-radius: 10px;
  background: var(--md-surface-variant);
  color: var(--md-on-surface-variant);
}
.eccezioni .material-icon { font-size: 18px; }

/* Bonifici: una riga per movimento — chi, quando, quanto, la causale. */
.banca-riga {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  font-size: 13px;
  padding: 6px 0;
  border-bottom: 1px solid var(--md-outline-variant);
}
.banca-riga:last-child { border-bottom: 0; }
.banca-chi { min-width: 180px; }
.banca-quando { color: var(--md-on-surface-variant); }
.banca-importo { font-weight: 500; }
.banca-causale {
  flex: 1 1 260px;
  min-width: 0;
  font-size: 12px;
  color: var(--md-on-surface-variant);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.banca-dubbio {
  padding: 8px 10px;
  border-radius: 10px;
  background: var(--md-surface-variant);
  font-size: 13px;
}
.banca-dubbio .field-row { margin: 0; }

/* Registro soci: nome, codice fiscale e tessera; su schermo stretto vanno a capo. */
.riga-socio {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 4px 12px;
  font-size: 13px;
  padding: 5px 0;
  border-bottom: 1px solid var(--md-outline-variant);
}
.riga-socio:last-child { border-bottom: 0; }
.riga-socio .chip { font-size: 12px; }

/* Scheda studente: i dati che arrivano dal registro soci. */
.dati-socio { display: grid; gap: 4px 18px; font-size: 13px; margin: 10px 0 0; }
.dati-socio > div { display: flex; flex-wrap: wrap; gap: 4px 10px; }
.dati-socio .text-muted { min-width: 120px; }
@media (min-width: 720px) { .dati-socio { grid-template-columns: 1fr 1fr; } }

/* Chiusura, saldi: sotto la riga del contante, il maturato scomposto nei suoi pezzi. */
.saldo-persona + .saldo-persona { margin-top: 2px; }
.saldo-dettaglio {
  font-size: 12px;
  color: var(--md-on-surface-variant);
  margin: 2px 0 0;
}

/* Scheda studente, sotto il mini-calendario: quante lezioni nel mese e con chi. */
.con-chi-mese {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--md-outline-variant);
}
.con-chi-mese .chip { font-size: 12px; }

/* «Da quando valgono gli orari»: la riga con la data di inizio e, per l'admin, il campo
   per spostarla. Su schermo stretto il modulo va sotto la descrizione. */
.orario-validita {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
  font-size: 14px;
  padding: 6px 0;
  border-bottom: 1px solid var(--md-outline-variant);
}
.orario-validita:last-child { border-bottom: 0; }
.orario-inizio { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.orario-inizio label.field-label { margin: 0; }
.orario-inizio input[type=date] { width: auto; height: 36px; padding: 0 10px; }
.legenda-doppione { display: inline-block; width: 12px; height: 12px; border-radius: 3px; border: 2px dashed var(--md-error); vertical-align: -2px; box-sizing: border-box; }

@media (max-width: 700px) {
  .agenda-griglia { display: none; }
  .agenda-elenco { display: block; }
}

/* Appello: l'elenco a sinistra; di lato chi è segnato e, subito sotto, le modifiche di
   questa lezione (prima stavano in fondo alla pagina e non si trovavano). Sullo schermo
   stretto l'ordine diventa: chi è in lezione, l'appello, le modifiche. */
.appello-layout {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(290px, 1.4fr);
  /* La prima riga è alta quanto «In lezione», il resto va alla seconda: altrimenti
     l'appello, che sta su due righe, le allunga tutte e due e spinge a metà pagina le
     modifiche della lezione (visto il 24/09/2026). */
  grid-template-rows: min-content 1fr;
  align-items: start;
  gap: 16px;
}
.appello-layout > .card { margin-top: 0; }
.appello-colonna { grid-column: 1; grid-row: 1 / span 2; min-width: 0; }
.presenti-box { grid-column: 2; grid-row: 1; min-width: 0; }
.solo-questa { grid-column: 2; grid-row: 2; min-width: 0; align-self: start; }
/* Nella colonna stretta i campi vanno uno sotto l'altro e larghi quanto la card (i moduli
   hanno «align-items:flex-end» scritto nel tag, che in colonna li stringerebbe a destra). */
.solo-questa .field-row { flex-direction: column; gap: 0; }
.solo-questa .field-row > * { width: 100%; min-width: 0; }
.solo-questa .field { min-width: 0; margin-bottom: 10px; }
.solo-questa .field input, .solo-questa .field select { width: 100%; }
.presente-riga {
  text-decoration: none;
  color: inherit;
  padding: 8px 0;
  border-bottom: 1px solid var(--md-outline-variant);
  flex-wrap: wrap;
  font-size: 14px;
}
.presente-riga:last-child { border-bottom: none; }

@media (max-width: 980px) {
  .appello-layout { grid-template-columns: minmax(0, 1fr); grid-template-rows: none; }
  .appello-layout > .card { grid-column: 1; grid-row: auto; }
  .presenti-box { order: 1; }
  .appello-colonna { order: 2; }
  .solo-questa { order: 3; }
  .solo-questa .field-row { flex-direction: row; gap: 12px; }
  .solo-questa .field-row > * { width: auto; }
}

/* Tablet: le voci del menù con la scritta non ci stanno, restano le icone (col nome al passaggio). */
@media (min-width: 641px) and (max-width: 1060px) {
  .app-bar nav a { padding: 8px 12px; }
  .app-bar nav a span.label { display: none; }
}

@media (max-width: 640px) {
  /* Telefono: il menù scende in basso, come la barra di navigazione di Android. In alto
     restavano fuori le ultime voci e la pagina scorreva di lato. */
  .app-bar nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 30;
    gap: 0;
    justify-content: space-around;
    padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
    background: var(--md-surface-container);
    border-top: 1px solid var(--md-outline-variant);
  }
  .app-bar nav a {
    flex: 1 1 0;
    min-width: 0;
    flex-direction: column;
    gap: 2px;
    padding: 6px 2px;
    border-radius: var(--md-radius-md);
    font-size: 11px;
  }
  .app-bar nav a span.label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; }
  .app-bar .brand { margin-right: auto; }
  .container { padding: 16px 12px 110px; }
  .utente-nome { display: none; }
  .fab { bottom: 92px; }
}