/*
  STF - Stili minimi per prototipo funzionale.
  Obiettivo: solo leggibilità e struttura, senza decorazioni.
*/

:root {
  --mistra: #F6F5EE;
  --nero-mpestatu: #2F2D2E;
  --rosciu: #E53323;
  --grugni: #4A6641;
  --fiastrella: #66C0BE;
  --perseca: #F5B0A5;
  --jia: #C9CC83;
  --page-pad: clamp(0.75rem, 2vw, 1.25rem);
}

@font-face {
  font-family: "Ronzino";
  src: url("fonts/Ronzino-Regular.woff2") format("woff2"),
       url("fonts/Ronzino-Regular.woff") format("woff");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Q-Sci";
  src: url("fonts/QSci-Regular.woff2") format("woff2"),
       url("fonts/QSci-Regular.woff") format("woff");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

/* Reset essenziale: elimina differenze tra browser e box model. */
* {
  box-sizing: border-box;
}

/* Evita overflow orizzontale indesiderato su viewport strette. */
html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

/* Layout base della pagina: tipografia, colori, spaziatura e sfondo. */
body {
  margin: 0;
  font-family: "Inter", "Ronzino", sans-serif;
  color: var(--nero-mpestatu);
  background: var(--mistra);
  line-height: 1.45;
  padding: var(--page-pad);
}

input,
button,
output,
table,
select,
textarea {
  font-family: inherit;
}

main {
  max-width: 1500px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  gap: clamp(0.85rem, 1.6vw, 1.5rem);
}

.layout-grid {
  display: grid;
  gap: clamp(1rem, 2vw, 2rem);
  grid-template-columns: 1fr 1fr 350px;
  align-items: start;
  position: relative;
}

.column {
  min-width: 0;
  max-width: 100%;
}

.column-revenues,
.column-costs {
  max-height: none;
  overflow: visible;
  padding-right: 0;
}

.column-results {
  position: relative;
  top: auto;
  right: auto;
  width: auto;
  max-height: none;
  overflow: visible;
  display: grid;
  gap: 0;
  align-self: start;
  z-index: 1;
}

.results-sticky {
  position: sticky;
  position: -webkit-sticky;
  top: 1rem;
  max-height: calc(100vh - 1.5rem);
  overflow-y: auto;
  display: grid;
  gap: 1.1rem;
  align-content: start;
}

.column-results > section,
.results-panel,
.kpi-grid,
.table-wrap,
.inline {
  min-width: 0;
}

.results-panel {
  display: grid;
  gap: 1rem;
}

.results-panel h3 {
  margin-top: 0.2rem;
}

.results-panel table {
  margin-top: 0;
}

.scenarios-section {
  margin-top: 0.5rem;
}

.projections-section {
  margin-top: 0.25rem;
}

/* Blocchi funzionali: contenitori principali delle varie sezioni. */
section,
fieldset {
  border: 1px solid var(--nero-mpestatu);
  padding: clamp(0.85rem, 1.8vw, 1.35rem);
  margin: 0;
  background: #ffffff;
  border-radius: 0.5rem;
  filter: drop-shadow(0px 1px 2px rgba(16, 24, 40, 0.06));
  min-width: 0;
  max-width: 100%;
}

legend,
h1,
h2,
h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1rem;
  font-weight: 700;
}

.app-title {
  font-family: "Q-Sci", "Ronzino", serif;
  font-size: 3.1rem;
  color: var(--nero-mpestatu);
  text-align: center;
}

h3 {
  margin-top: 0.9rem;
  font-size: 0.95rem;
}

/* Griglie per controlli: organizzano input e slider in modo leggibile. */
.grid {
  display: grid;
  gap: clamp(0.7rem, 1.4vw, 1rem);
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  min-width: 0;
}

.control-row {
  display: grid;
  gap: 0.5rem;
  border: 1px solid var(--nero-mpestatu);
  padding: 0.85rem;
  border-radius: 0.5rem;
  background: #ffffff;
  transition: border-color 180ms ease, background-color 180ms ease;
  min-width: 0;
}

.control-row:first-child {
  border-top: 1px solid var(--nero-mpestatu);
  padding-top: 0.85rem;
}

.control-row label {
  font-size: 0.92rem;
}

/* Affianca input number e slider nella stessa riga di controllo. */
.pair {
  display: grid;
  gap: 0.35rem;
  grid-template-columns: 1fr 1fr;
  align-items: center;
}

.pair-single {
  grid-template-columns: 1fr;
}

.toggles {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.toggles label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.86rem;
}

.is-locked {
  border: 2px solid var(--fiastrella);
}

/* Stile neutro per campi e bottoni, senza dipendenze da framework. */
input[type="number"],
input[type="text"],
button {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--nero-mpestatu);
  background: #ffffff;
  color: var(--nero-mpestatu);
  border-radius: 0.5rem;
}

input[type="number"],
input[type="text"] {
  border-radius: 0.5rem;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  appearance: textfield;
  -moz-appearance: textfield;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--fiastrella);
}

/* Riga compatta a due colonne: usata nelle aree di supporto e comandi rapidi. */
.inline {
  display: grid;
  gap: 0.5rem;
  grid-template-columns: minmax(0, 1fr) minmax(110px, 170px);
  align-items: center;
}

.inline label {
  overflow-wrap: anywhere;
}

.helper-text {
  margin: 0;
  font-size: 0.9rem;
}

.list-block {
  display: grid;
  gap: 1.15rem;
}

.operator-row {
  border: 1px solid var(--nero-mpestatu);
  padding: 1rem;
  border-radius: 0.5rem;
  background: #ffffff;
  transition: border-color 180ms ease, background-color 180ms ease;
}

.two-cols {
  grid-template-columns: repeat(2, minmax(200px, 1fr));
}

/* Utility spaziature: piccoli margini standardizzati. */
.mt-sm {
  margin-top: 0.5rem;
}

.mt-md {
  margin-top: 0.75rem;
}

/* Output testuale: blocchi leggibili per riepilogo e dettagli di calcolo. */
output {
  display: block;
  padding: 0.75rem;
  border: 1px solid var(--nero-mpestatu);
  border-radius: 0.5rem;
  min-height: 2rem;
  white-space: pre-line;
  overflow-wrap: anywhere;
  font-family: inherit;
  font-size: 0.9rem;
  transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.kpi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.kpi-card {
  border: 1px solid var(--nero-mpestatu);
  padding: 0.75rem;
  border-radius: 0.5rem;
  transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease;
  min-width: 0;
}

.kpi-card p {
  margin: 0 0 0.35rem 0;
  font-size: 0.85rem;
}

.kpi-card strong {
  font-size: 1rem;
}

.is-positive {
  color: var(--grugni);
}

.is-negative {
  color: var(--rosciu);
}

/* Tabelle: scenari e proiezioni temporali. */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
  font-size: 0.88rem;
}

.table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-wrap table {
  min-width: 560px;
}

th,
td {
  border: 1px solid var(--nero-mpestatu);
  padding: 0.35rem;
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.actions {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.pseudo-border-bottom:hover {
  border-bottom-color: rgba(47, 45, 46, 0.35);
  background: rgba(47, 45, 46, 0.03);
}

/* Rispetta le preferenze di accessibilità per il motion ridotto. */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Adattamenti tablet/smartphone: impila i layout e semplifica i controlli. */
@media (max-width: 720px) {
  section,
  fieldset {
    padding: 0.85rem;
  }

  .layout-grid {
    grid-template-columns: 1fr;
  }

  .column-revenues,
  .column-costs,
  .column-results {
    max-height: none;
    overflow: visible;
    position: static;
  }

  .inline {
    grid-template-columns: 1fr;
  }

  .grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .two-cols {
    grid-template-columns: 1fr;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .pair {
    grid-template-columns: 1fr;
  }

  .toggles {
    gap: 0.5rem;
  }

  .actions {
    width: 100%;
  }

  .actions button {
    flex: 1 1 100%;
  }

  .table-wrap table {
    min-width: 460px;
  }
}

/* Adattamenti per schermi molto piccoli. */
@media (max-width: 480px) {
  body {
    padding: 0.5rem;
  }

  main {
    gap: 0.75rem;
  }

  section,
  fieldset {
    padding: 0.7rem;
  }

  .table-wrap table {
    min-width: 0;
    width: 100%;
    table-layout: fixed;
    font-size: 0.8rem;
  }

  th,
  td {
    padding: 0.3rem;
  }
}

/* Layout intermedio: riduce la colonna risultati quando lo spazio cala. */
@media (max-width: 1180px) {
  .layout-grid {
    grid-template-columns: 1fr 1fr minmax(260px, 320px);
  }

  .column-results {
    grid-column: auto;
    position: relative;
    grid-template-columns: 1fr;
  }

  .results-sticky {
    top: 0.75rem;
    max-height: calc(100vh - 1.25rem);
  }

  .column-results > section {
    height: auto;
  }
}

/* Ultimo breakpoint: forza il layout a una colonna unica. */
@media (max-width: 860px) {
  .layout-grid {
    grid-template-columns: 1fr;
  }

  .column-revenues,
  .column-costs,
  .column-results,
  .results-sticky {
    max-height: none;
    overflow: visible;
    position: static;
  }

  .column-results {
    grid-template-columns: 1fr;
  }
}