:root {
  --carta: #FBFCF9;
  --carta-alta: #FFFFFF;
  --carta-incisa: #EEF2E8;
  --inchiostro: #23271D;
  --inchiostro-2: #5A6152;
  --bistro: #A8763E;
  --segnavia: #C8102E;
  --bosco: #2E7D32;
  --acqua: #2F6E8F;
  --roccia: #8C8A7E;
  --bordo: #DDE3D5;
  --ombra: 0 1px 0 var(--bordo);

  --display: "Archivo Narrow", "Arial Narrow", system-ui, sans-serif;
  --testo: "Atkinson Hyperlegible", system-ui, -apple-system, sans-serif;

  --s0: .8rem; --s1: 1rem; --s2: 1.25rem; --s3: 1.5625rem;
  --s4: 1.953rem; --s5: 2.441rem; --s6: 3.05rem;
  --gutter: clamp(1rem, 3vw, 2.25rem);
}

:root[data-tema="notte"] {
  --carta: #15180F;
  --carta-alta: #1E2318;
  --carta-incisa: #262C1E;
  --inchiostro: #E7EBDD;
  --inchiostro-2: #A2AB93;
  --bistro: #C79A5E;
  --segnavia: #E8465F;
  --bosco: #7BA36F;
  --acqua: #6FAECC;
  --roccia: #9A9A8C;
  --bordo: #333A28;
}

* { box-sizing: border-box; }

html { color-scheme: light; }
:root[data-tema="notte"] { color-scheme: dark; }

body {
  margin: 0;
  background: var(--carta);
  color: var(--inchiostro);
  font-family: var(--testo);
  font-size: var(--s1);
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3, .display { font-family: var(--display); font-weight: 700; line-height: 1.05; margin: 0; }

a { color: inherit; text-underline-offset: .18em; text-decoration-thickness: 1px; }

.salta {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--segnavia); color: #fff; padding: .6rem 1rem;
}
.salta:focus { left: 0; }

.sr {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

:where(button, select, input, a):focus-visible {
  outline: 3px solid var(--acqua);
  outline-offset: 2px;
}

/* ---------- testata ---------- */

.testata {
  display: flex; align-items: center; gap: var(--s2);
  padding: .7rem var(--gutter);
  border-bottom: 1px solid var(--bordo);
  background: var(--carta-alta);
  position: sticky; top: 0; z-index: 40;
}

.marchio { display: flex; align-items: center; gap: .6rem; margin-right: auto; }

/* Il segnavia CAI: bianco, rosso, bianco. È il marchio del prodotto. */
.bollo {
  width: 15px; height: 30px; flex: none;
  background: linear-gradient(180deg,
    var(--carta-alta) 0 30%, var(--segnavia) 30% 70%, var(--carta-alta) 70% 100%);
  border: 1px solid var(--bordo);
  transform: rotate(-4deg);
}

.marchio-testo {
  font-family: var(--display); font-weight: 700;
  font-size: var(--s2); letter-spacing: .01em; line-height: 1;
  display: flex; flex-direction: column;
}
.marchio-testo em {
  font-style: normal; font-weight: 500; font-size: .62em;
  color: var(--inchiostro-2); letter-spacing: .06em;
}

.cerca { position: relative; flex: 0 1 22rem; min-width: 0; }
.cerca input {
  width: 100%;
  font: inherit; font-size: var(--s0);
  background: var(--carta); color: var(--inchiostro);
  border: 1px solid var(--bordo); border-radius: 2px;
  padding: .42rem .65rem;
}
.cerca input::placeholder { color: var(--inchiostro-2); }
#cerca-risultati {
  position: absolute; left: 0; right: 0; top: calc(100% + 4px); z-index: 70;
  list-style: none; margin: 0; padding: .25rem 0;
  background: var(--carta-alta);
  border: 1px solid var(--bordo);
  box-shadow: 0 6px 18px rgba(0,0,0,.12);
}
#cerca-risultati li {
  display: flex; justify-content: space-between; gap: .8rem;
  padding: .42rem .7rem; font-size: var(--s0); cursor: pointer;
}
#cerca-risultati li span { color: var(--inchiostro-2); font-size: .74rem; }
#cerca-risultati li[aria-selected="true"], #cerca-risultati li[data-n]:hover { background: var(--carta-incisa); }
#cerca-risultati .nessuno { color: var(--inchiostro-2); cursor: default; }

.posizione {
  font: inherit; font-size: var(--s0);
  background: var(--carta); color: var(--inchiostro);
  border: 1px solid var(--bordo); border-left: 3px solid var(--segnavia); border-radius: 2px;
  padding: .38rem .7rem; cursor: pointer; white-space: nowrap;
}
.posizione:disabled { opacity: .55; cursor: progress; }

select, .tema {
  font: inherit; font-size: var(--s0);
  background: var(--carta); color: var(--inchiostro);
  border: 1px solid var(--bordo); border-radius: 2px;
  padding: .38rem .6rem;
}
.tema { cursor: pointer; line-height: 1; padding: .38rem .55rem; }

/* ---------- apertura ---------- */

.apertura {
  position: relative;
  padding: clamp(1.1rem, 2.6vw, 1.9rem) var(--gutter);
  border-bottom: 1px solid var(--bordo);
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(1rem, 2.5vw, 2rem) clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.livelli {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 0; opacity: .5; pointer-events: none;
}
.livelli path { fill: none; stroke: var(--bistro); stroke-width: 1; opacity: .32; }
.livelli path.spessa { stroke-width: 1.8; opacity: .5; }

.apertura > *:not(.livelli) { position: relative; z-index: 1; }

.apertura-testo { max-width: 34ch; }

h1 {
  font-size: clamp(var(--s3), 3.1vw, var(--s5));
  letter-spacing: -.012em;
  text-wrap: balance;
}

.occhiello {
  margin: .55rem 0 0;
  color: var(--inchiostro-2);
  font-size: var(--s0);
  max-width: 48ch;
}

fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }

legend {
  font-family: var(--display); font-weight: 600;
  font-size: var(--s0); letter-spacing: .04em;
  color: var(--inchiostro-2);
  padding: 0 0 .5rem;
}

.bagaglio-lista {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem;
}

.carico {
  display: flex; align-items: center; gap: .55rem;
  padding: .62rem .7rem;
  background: var(--carta-alta);
  border: 1px solid var(--bordo);
  border-left: 4px solid var(--bordo);
  cursor: pointer;
  transition: border-color .12s, background .12s;
}
.carico:hover { border-color: var(--roccia); }
.carico:has(:checked) {
  border-left-color: var(--segnavia);
  background: var(--carta-incisa);
}
.carico input { position: absolute; opacity: 0; width: 0; height: 0; }
.carico:has(:focus-visible) { outline: 3px solid var(--acqua); outline-offset: 2px; }
.carico-icona { font-size: 1.15rem; line-height: 1; color: var(--inchiostro-2); }
.carico:has(:checked) .carico-icona { color: var(--segnavia); }
.carico-nome { font-size: var(--s0); }

.incerti {
  display: flex; align-items: flex-start; gap: .5rem;
  margin-top: .7rem; font-size: var(--s0); color: var(--inchiostro-2);
  cursor: pointer;
}
.incerti input { margin-top: .28rem; accent-color: var(--bosco); }

.fascia {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: .8rem clamp(1rem, 3vw, 2.4rem);
  padding: .6rem var(--gutter);
  border-bottom: 1px solid var(--bordo);
  background: var(--carta-alta);
}
.fascia legend { padding: 0; float: left; margin-right: .6rem; line-height: 1.9; }
.gradi { display: flex; align-items: center; }
.gradi-lista { display: flex; flex-wrap: wrap; gap: .35rem; }

.lunghezza, .ordine {
  display: flex; align-items: center; gap: .5rem;
  font-size: var(--s0); color: var(--inchiostro-2);
}
.lunghezza b {
  font-family: var(--display); color: var(--inchiostro);
  font-variant-numeric: tabular-nums;
}
.lunghezza input { accent-color: var(--segnavia); width: 9rem; }

.grado {
  font-family: var(--display); font-weight: 600; font-size: var(--s0);
  letter-spacing: .03em;
  padding: .34rem .75rem;
  background: transparent;
  color: var(--inchiostro);
  border: 1px solid var(--bordo);
  border-radius: 999px;
  cursor: pointer;
}
.grado[aria-pressed="true"] {
  background: var(--inchiostro); color: var(--carta); border-color: var(--inchiostro);
}

/* ---------- commutatore mobile ---------- */

.commuta { display: none; }

/* ---------- corpo ---------- */

.corpo {
  display: grid;
  grid-template-columns: minmax(0, 27rem) minmax(0, 1fr);
  align-items: start;
}

.colonna-elenco {
  border-right: 1px solid var(--bordo);
  min-height: 60vh;
}

.conteggio {
  font-family: var(--display); font-size: var(--s0); letter-spacing: .03em;
  color: var(--inchiostro-2);
  padding: .8rem var(--gutter);
  border-bottom: 1px solid var(--bordo);
  position: sticky; top: 3.4rem; background: var(--carta); z-index: 5;
}

.elenco { list-style: none; margin: 0; padding: 0; }

.riga {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .1rem .8rem;
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  border-bottom: 1px solid var(--bordo);
  padding: .85rem var(--gutter);
  font: inherit; color: inherit;
  cursor: pointer;
}
.riga:hover { background: var(--carta-alta); }
.riga[aria-current="true"] { background: var(--carta-incisa); }

/* Il numero del sentiero dentro al segnavia, come sul sasso. */
.tabella {
  grid-row: span 3;
  align-self: start;
  min-width: 2.6rem;
  padding: .3rem .35rem;
  background: linear-gradient(180deg,
    var(--carta-alta) 0 22%, var(--segnavia) 22% 78%, var(--carta-alta) 78% 100%);
  border: 1px solid var(--bordo);
  font-family: var(--display); font-weight: 700; font-size: var(--s0);
  color: #fff; text-align: center; line-height: 1.5;
  text-shadow: 0 1px 2px rgba(0,0,0,.45);
}
.tabella.muta {
  background: var(--carta-incisa); color: var(--inchiostro-2); text-shadow: none;
}

.riga-nome {
  font-family: var(--display); font-weight: 600; font-size: var(--s2);
  line-height: 1.15;
}
.riga-dati {
  font-size: var(--s0); color: var(--inchiostro-2);
  display: flex; flex-wrap: wrap; gap: .1rem .7rem;
}
.riga-bolli { display: flex; gap: .3rem; margin-top: .3rem; }

/* ---------- bolli di verdetto ---------- */

.bollino {
  --c: var(--roccia);
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.45rem; height: 1.45rem;
  border: 1.5px solid var(--c);
  border-radius: 50%;
  color: var(--c);
  font-size: .72rem; font-weight: 700; font-family: var(--display);
  position: relative;
}
.bollino.si { background: var(--bosco); border-color: var(--bosco); color: #fff; }
.bollino.forse {
  border-color: var(--bistro); color: var(--bistro);
  background: linear-gradient(180deg, transparent 50%, var(--bistro) 50%);
}
.bollino.no { border-color: var(--segnavia); color: var(--segnavia); border-style: solid; }
.bollino.no::after {
  content: ""; position: absolute; inset: -1px;
  background: linear-gradient(45deg, transparent 46%, var(--segnavia) 46% 54%, transparent 54%);
  border-radius: 50%;
}
.bollino.ignoto { border-style: dashed; }

/* ---------- mappa ---------- */

.colonna-mappa { position: sticky; top: 3.4rem; height: calc(100vh - 3.4rem); }
#mappa { width: 100%; height: 100%; background: var(--carta-incisa); }

.leaflet-container { font-family: var(--testo); background: var(--carta-incisa); }
.leaflet-tile-pane { filter: saturate(.45) brightness(1.05); }
:root[data-tema="notte"] .leaflet-tile-pane { filter: invert(1) hue-rotate(180deg) brightness(.85) contrast(.95); }

.legenda {
  background: var(--carta-alta);
  border: 1px solid var(--bordo);
  padding: .45rem .6rem;
  font-size: .72rem;
  line-height: 1.5;
  color: var(--inchiostro);
  box-shadow: 0 1px 6px rgba(0,0,0,.15);
}
.legenda b {
  display: block; font-family: var(--display); font-weight: 600;
  font-size: .7rem; letter-spacing: .04em; color: var(--inchiostro-2);
  margin-bottom: .2rem;
}
.legenda span { display: flex; align-items: center; gap: .35rem; }
.legenda i { width: 14px; height: 3px; flex: none; }

.traccia-etichetta {
  background: var(--carta-alta);
  border: 1px solid var(--inchiostro);
  font-family: var(--display); font-weight: 700; font-size: .78rem;
  padding: .05rem .3rem; white-space: nowrap;
  box-shadow: 1px 1px 0 var(--inchiostro);
}

/* ---------- scheda di dettaglio ---------- */

.scheda {
  position: fixed; right: 0; top: 0; bottom: 0;
  width: min(30rem, 100vw);
  background: var(--carta-alta);
  border-left: 1px solid var(--bordo);
  box-shadow: -12px 0 32px rgba(0,0,0,.14);
  z-index: 60;
  overflow-y: auto;
  padding: var(--gutter);
  animation: entra .22s ease-out;
}
@keyframes entra { from { transform: translateX(14px); opacity: 0; } }

.chiudi {
  position: absolute; top: .7rem; right: .7rem;
  background: var(--carta); border: 1px solid var(--bordo);
  width: 2rem; height: 2rem; cursor: pointer; font: inherit; color: inherit;
  border-radius: 50%;
}

.scheda h2 { font-size: var(--s4); max-width: 18ch; margin-right: 2rem; }
.scheda-meta { font-size: var(--s0); color: var(--inchiostro-2); margin: .35rem 0 1.1rem; }

.numeri {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(5.2rem, 1fr));
  border-top: 1px solid var(--bordo);
  margin-bottom: 1.2rem;
}
.numero {
  padding: .6rem .1rem;
  border-bottom: 1px solid var(--bordo);
}
.numero b {
  display: block; font-family: var(--display); font-size: var(--s3); font-weight: 700;
  line-height: 1;
}
.numero span { font-size: .72rem; color: var(--inchiostro-2); }

.profilo { width: 100%; height: 118px; display: block; margin-bottom: .3rem; }
.profilo .area { fill: var(--carta-incisa); }
.profilo .linea { fill: none; stroke: var(--bistro); stroke-width: 2; }
.profilo .ripida { stroke: var(--segnavia); stroke-width: 3; fill: none; }
.profilo .griglia { stroke: var(--bordo); stroke-width: 1; }
.profilo text { font-family: var(--display); font-size: 10px; fill: var(--inchiostro-2); }

.didascalia { font-size: .74rem; color: var(--inchiostro-2); margin: 0 0 1.4rem; }

.verdetto {
  border-top: 1px solid var(--bordo);
  padding: .75rem 0;
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: .1rem .7rem;
}
.verdetto .bollino { grid-row: span 2; align-self: start; margin-top: .15rem; }
.verdetto h3 { font-size: var(--s1); font-weight: 600; }
.verdetto .esito {
  font-family: var(--display); font-size: var(--s0); letter-spacing: .04em;
  color: var(--inchiostro-2);
}
.verdetto ul { margin: .3rem 0 0; padding-left: 1.05rem; font-size: var(--s0); }
.verdetto li { margin-bottom: .12rem; }
.verdetto .fonte {
  font-size: .7rem; color: var(--inchiostro-2);
  border: 1px solid var(--bordo); border-radius: 999px;
  padding: .05rem .45rem; display: inline-block; margin-top: .35rem;
}

.vuoto { padding: 2.5rem var(--gutter); color: var(--inchiostro-2); }
.vuoto b { display: block; font-family: var(--display); font-size: var(--s2); color: var(--inchiostro); margin-bottom: .3rem; }

/* ---------- piede ---------- */

.piede {
  border-top: 1px solid var(--bordo);
  background: var(--carta-alta);
  padding: clamp(1.6rem, 4vw, 2.6rem) var(--gutter);
  display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: var(--s3);
  font-size: var(--s0);
}
.avvertenza h2 { font-size: var(--s2); margin-bottom: .5rem; }
.avvertenza p { max-width: 62ch; color: var(--inchiostro-2); margin: 0 0 .6rem; }
.avvertenza strong { color: var(--inchiostro); }
.fonti p { margin: 0 0 .3rem; color: var(--inchiostro-2); }

/* ---------- adattamento ---------- */

@media (max-width: 900px) {
  .apertura { grid-template-columns: 1fr; }
  .apertura-testo { max-width: none; }
  .fascia { gap: .7rem 1.2rem; }
  .lunghezza input { width: 7rem; }

  .tema { flex: none; }

  .commuta {
    display: grid; grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid var(--bordo);
    position: sticky; top: 3.4rem; z-index: 30; background: var(--carta);
  }
  .commuta button {
    font-family: var(--display); font-size: var(--s1); letter-spacing: .03em;
    background: none; border: 0; border-bottom: 3px solid transparent;
    padding: .6rem; cursor: pointer; color: var(--inchiostro-2);
  }
  .commuta button.attivo { color: var(--inchiostro); border-bottom-color: var(--segnavia); }

  .corpo { grid-template-columns: 1fr; }
  .colonna-elenco { border-right: 0; }
  .conteggio { top: 6.6rem; }
  .colonna-mappa { position: static; height: 68vh; }
  body[data-vista="elenco"] .colonna-mappa { display: none; }
  body[data-vista="mappa"] .colonna-elenco { display: none; }

  .scheda { width: 100vw; }
  .piede { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .testata { position: static; flex-wrap: wrap; gap: .5rem .6rem; }
  .cerca { order: 3; flex: 1 1 100%; }
  .posizione { flex: none; }
  .commuta { top: 0; }
  .conteggio { top: 2.95rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}