@import url("https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600&family=Bodoni+Moda:ital,opsz,wght@0,6..96,400..700;1,6..96,400&family=IBM+Plex+Mono:wght@400;500&display=swap");

/* Studio Marchetti Architetti — «La tavola»
   Carta, inchiostro e un filo di cotto. Vedi DESIGN.md. */

:root {
  --carta: #FAF8F4;
  --lucido: #F0ECE4;
  --filo: #D8D2C7;
  --grafite: #6A655D;
  --inchiostro: #1B1A17;
  --cotto: #9C4E34;

  --f-titolo: "Bodoni Moda", "Didot", "Bodoni 72", Georgia, serif;
  --f-testo: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --t-max: clamp(2.5rem, 1.2rem + 7vw, 7rem);
  --t-1: clamp(2.1rem, 1.2rem + 3.6vw, 4.5rem);
  --t-2: clamp(1.5rem, 1.1rem + 1.6vw, 2.25rem);
  --t-lead: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
  --t-body: 1.0625rem;
  --t-small: 0.875rem;
  --t-cap: 0.6875rem;

  --margine: clamp(1.25rem, 4vw, 3.5rem);
  --max: 86rem;
  --gap: clamp(1rem, 2vw, 2rem);
  --s-1: 0.5rem;
  --s-2: 1rem;
  --s-3: 1.5rem;
  --s-4: 2.5rem;
  --s-5: clamp(3rem, 6vw, 5rem);
  --s-6: clamp(4.5rem, 11vw, 10rem);

  --linea: 1px solid var(--filo);
  --durata: 180ms;
}

/* ---------- Base ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--carta);
  color: var(--inchiostro);
  font-family: var(--f-testo);
  font-size: var(--t-body);
  line-height: 1.6;
  font-feature-settings: "kern", "liga";
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--f-titolo);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.015em;
  overflow-wrap: break-word;
  hyphens: none;
  -webkit-hyphens: none;
  text-wrap: balance;
}

p,
ul,
ol,
dl,
dd,
figure {
  margin: 0;
}

p {
  max-width: 62ch;
  overflow-wrap: break-word;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--cotto);
}

svg {
  display: block;
  max-width: 100%;
}

::selection {
  background: var(--inchiostro);
  color: var(--carta);
}

:focus-visible {
  outline: 2px solid var(--cotto);
  outline-offset: 3px;
}

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

.skip-link {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--inchiostro);
  color: var(--carta);
  font-family: var(--f-mono);
  font-size: var(--t-cap);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: none;
  color: var(--carta);
}

/* ---------- Layout ---------- */

.contenitore {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--margine);
}

.sezione {
  padding-block: var(--s-6);
}

.sezione--filo {
  border-top: var(--linea);
}

.sezione--stretta {
  padding-block: var(--s-5);
}

.griglia {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s-4) var(--gap);
}

.griglia > * {
  min-width: 0;
}

/* ---------- Testo ---------- */

.titolo-max {
  font-size: var(--t-max);
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: -0.025em;
  max-width: 13em;
  word-break: normal;
}

.titolo-sezione {
  font-size: var(--t-1);
  line-height: 1;
  letter-spacing: -0.02em;
  max-width: 14em;
}

.titolo-voce {
  font-size: var(--t-2);
  line-height: 1.08;
}

.lead {
  font-size: var(--t-lead);
  line-height: 1.5;
  max-width: 34em;
}

.prosa > * + * {
  margin-top: 1em;
}

.prosa h2 {
  font-size: var(--t-2);
  margin-top: 2em;
}

.prosa ul {
  padding-left: 1.1em;
}

.didascalia {
  display: block;
  font-family: var(--f-mono);
  font-size: var(--t-cap);
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grafite);
}

.didascalia--cotto {
  color: var(--cotto);
}

.testo-secondario {
  color: var(--grafite);
}

/* ---------- Pulsanti ---------- */

.azioni {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  align-items: center;
}

.azioni--fine {
  margin-top: var(--s-5);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  min-height: 3rem;
  padding: 0.85rem 1.5rem;
  border: 1px solid var(--inchiostro);
  border-radius: 0;
  background: var(--inchiostro);
  color: var(--carta);
  font-family: var(--f-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--durata), color var(--durata), border-color var(--durata);
}

.btn:hover {
  background: var(--carta);
  color: var(--inchiostro);
}

.btn--linea {
  background: transparent;
  color: var(--inchiostro);
}

.btn--linea:hover {
  background: var(--inchiostro);
  color: var(--carta);
}

.link-freccia {
  display: inline-flex;
  gap: 0.75em;
  align-items: baseline;
  padding-block: 0.25rem;
  border-bottom: 1px solid var(--inchiostro);
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
}

.link-freccia::after {
  content: "→";
  transition: transform var(--durata);
}

.link-freccia:hover {
  border-color: var(--cotto);
}

.link-freccia:hover::after {
  transform: translateX(0.3em);
}

/* ---------- Testata e navigazione ---------- */

.testata {
  position: relative;
  border-bottom: var(--linea);
  background: var(--carta);
}

.testata__riga {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  min-height: 4.5rem;
}

.marchio {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.9rem;
  text-decoration: none;
}

.marchio__nome {
  font-family: var(--f-titolo);
  font-size: 1.6rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1;
}

.marchio__sub {
  font-family: var(--f-mono);
  font-size: var(--t-cap);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grafite);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 2.75rem;
  padding: 0.5rem 0;
  border: 0;
  background: none;
  color: var(--inchiostro);
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
  cursor: pointer;
}

.nav-toggle__segno {
  position: relative;
  width: 1.5rem;
  height: 9px;
  border-top: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__segno {
  height: 1px;
  border-bottom: 0;
}

.nav {
  display: none;
}

.nav[data-open="true"] {
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 50;
  padding: var(--s-3) var(--margine) var(--s-4);
  background: var(--carta);
  border-bottom: var(--linea);
}

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

.nav[data-open="true"] .nav__lista li {
  border-top: var(--linea);
}

.nav[data-open="true"] .nav__link {
  display: block;
  padding-block: 0.9rem;
  font-family: var(--f-titolo);
  font-size: 1.9rem;
  line-height: 1.1;
  letter-spacing: -0.01em;
  text-transform: none;
}

.nav__link {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
}

.nav__link[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--cotto);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.5em;
}

/* ---------- Apertura (home) ---------- */

.apertura {
  padding-top: var(--s-5);
  padding-bottom: var(--s-5);
}

.apertura__didascalia {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
}

.apertura__lead {
  display: grid;
  gap: var(--s-4);
}

.apertura__disegno {
  margin-top: var(--s-5);
  border-top: 1px solid var(--inchiostro);
  padding-top: var(--s-2);
}

.apertura__disegno .didascalia {
  margin-top: var(--s-2);
}

/* ---------- Disegni al tratto ---------- */

.disegno {
  width: 100%;
  height: auto;
  color: var(--inchiostro);
}

.dw {
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  stroke-linecap: square;
  stroke-linejoin: miter;
}

.dw--muro {
  stroke-width: 5;
}

.dw--medio {
  stroke-width: 2.2;
}

.dw--sottile {
  stroke-width: 0.7;
}

.dw--tratteggio {
  stroke-width: 0.7;
  stroke-dasharray: 6 5;
}

.dw--pieno {
  fill: currentColor;
  stroke: none;
}

.dw--quota {
  stroke: var(--cotto);
  stroke-width: 0.8;
}

.dw--punto {
  fill: var(--cotto);
  stroke: none;
}

.dw-testo {
  fill: var(--grafite);
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
}

.dw-testo--quota {
  fill: var(--cotto);
}

.dw-testo--grande {
  font-size: 13px;
}

/* ---------- Tavole (progetti) ---------- */

.intro-sezione {
  display: grid;
  gap: var(--s-3);
  margin-bottom: var(--s-5);
}

.tavole {
  display: grid;
  gap: var(--s-6) var(--gap);
}

.tavola {
  display: grid;
  gap: var(--s-3);
  min-width: 0;
}

.tavola__foglio {
  display: grid;
  gap: var(--s-2);
}

.tavola__campo {
  padding: clamp(1rem, 3vw, 2.5rem);
  background: var(--lucido);
  border: var(--linea);
}

.tavola__testo {
  display: grid;
  gap: 0.75rem;
  max-width: 34rem;
}

.tavola__testo p {
  color: var(--grafite);
}

.scheda {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.35rem 1.5rem;
  padding-top: 0.75rem;
  border-top: var(--linea);
  font-family: var(--f-mono);
  font-size: 0.8125rem;
}

.scheda dt {
  font-size: var(--t-cap);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grafite);
}

/* ---------- Indice degli ambiti ---------- */

.indice {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: var(--linea);
}

.indice__voce {
  display: grid;
  gap: 0.75rem var(--gap);
  padding-block: var(--s-4);
  border-top: var(--linea);
}

.indice__voce p {
  color: var(--grafite);
}

/* ---------- Studio e mappa ---------- */

.mappa {
  padding: clamp(1rem, 3vw, 2rem);
  border: var(--linea);
}

.mappa figcaption {
  margin-top: var(--s-2);
}

/* ---------- Cartiglio ---------- */

.cartiglio {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--inchiostro);
}

.cartiglio__cella {
  display: grid;
  align-content: start;
  gap: 0.4rem;
  padding: 1rem 1.25rem 1.25rem;
  border-top: var(--linea);
  min-width: 0;
}

.cartiglio__cella:first-child {
  border-top: 0;
}

.cartiglio__cella dt,
.cartiglio__etichetta {
  font-family: var(--f-mono);
  font-size: var(--t-cap);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grafite);
}

.cartiglio__cella dd,
.cartiglio__valore {
  font-size: 1rem;
  overflow-wrap: anywhere;
}

.cartiglio__cella a {
  text-decoration: none;
}

.cartiglio__cella a:hover {
  text-decoration: underline;
}

.cartiglio__cella--nome dd,
.cartiglio__cella--nome .cartiglio__valore {
  font-family: var(--f-titolo);
  font-size: 1.35rem;
  line-height: 1.15;
}

/* ---------- Contatto ---------- */

.contatto {
  display: grid;
  gap: var(--s-4);
}

/* ---------- Modulo ---------- */

.modulo {
  display: grid;
  gap: var(--s-3);
  max-width: 44rem;
}

.form__field {
  display: grid;
  gap: 0.4rem;
}

.form__label {
  font-family: var(--f-mono);
  font-size: var(--t-cap);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grafite);
}

.form__input {
  width: 100%;
  min-height: 3rem;
  padding: 0.6rem 0;
  border: 0;
  border-bottom: 1px solid var(--inchiostro);
  border-radius: 0;
  background: transparent;
  color: var(--inchiostro);
  font-family: var(--f-testo);
  font-size: 1.0625rem;
  transition: background-color var(--durata), border-color var(--durata);
}

textarea.form__input {
  min-height: 9rem;
  padding: 0.75rem;
  border: 1px solid var(--inchiostro);
  resize: vertical;
}

select.form__input {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 1.5rem;
  background-image: linear-gradient(45deg, transparent 50%, var(--inchiostro) 50%), linear-gradient(135deg, var(--inchiostro) 50%, transparent 50%);
  background-position: calc(100% - 10px) 55%, calc(100% - 5px) 55%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.form__input:focus {
  outline: none;
  background-color: var(--lucido);
  border-color: var(--cotto);
}

.form__input:focus-visible {
  outline: 2px solid var(--cotto);
  outline-offset: 2px;
}

.form__field[data-state="error"] .form__input {
  border-color: var(--cotto);
  border-bottom-width: 2px;
}

.form__field[data-state="error"] .form__label::after {
  content: " — campo obbligatorio";
  color: var(--cotto);
}

.form__nota {
  font-size: var(--t-small);
  color: var(--grafite);
}

.form__status {
  min-height: 1.5rem;
  font-family: var(--f-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
}

.form__status[data-state="error"] {
  color: var(--cotto);
}

.form__status[data-state="sent"] {
  color: var(--inchiostro);
  padding-left: 0.75rem;
  border-left: 2px solid var(--cotto);
}

/* ---------- Piede (cartiglio del sito) ---------- */

.piede {
  padding-block: var(--s-5) var(--s-4);
  border-top: 1px solid var(--inchiostro);
}

.piede__fondo {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-2);
  margin-top: var(--s-3);
}

.piede__link {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.piede__link a {
  text-decoration: none;
}

.piede__link a:hover {
  text-decoration: underline;
}

/* ---------- Guida di stile ---------- */

.campioni {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
  gap: var(--gap);
}

.campione {
  display: grid;
  gap: 0.35rem;
}

.campione__colore {
  height: 7rem;
  border: var(--linea);
}

.campione--carta .campione__colore { background: var(--carta); }
.campione--lucido .campione__colore { background: var(--lucido); }
.campione--filo .campione__colore { background: var(--filo); }
.campione--grafite .campione__colore { background: var(--grafite); }
.campione--inchiostro .campione__colore { background: var(--inchiostro); }
.campione--cotto .campione__colore { background: var(--cotto); }

.scala-tipo {
  display: grid;
  gap: var(--s-4);
}

.scala-tipo__riga {
  display: grid;
  gap: 0.5rem;
  padding-top: var(--s-2);
  border-top: var(--linea);
}

.sg-blocco + .sg-blocco {
  margin-top: var(--s-5);
}

/* ---------- Breakpoint ---------- */

@media (max-width: 23.75rem) {
  .marchio__sub {
    display: none;
  }

  .btn {
    padding-inline: 1.1rem;
  }
}

@media (min-width: 40rem) {
  .cartiglio {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cartiglio__cella {
    border-left: var(--linea);
  }

  .cartiglio__cella:nth-child(2n + 1) {
    border-left: 0;
  }

  .cartiglio__cella:nth-child(2) {
    border-top: 0;
  }

  .indice__voce {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .indice__voce .didascalia {
    grid-column: 2;
  }
}

@media (min-width: 48rem) {
  .nav-toggle {
    display: none;
  }

  .nav,
  .nav[data-open="true"] {
    display: block;
    position: static;
    padding: 0;
    border: 0;
    background: none;
  }

  .nav__lista {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem clamp(1rem, 2.4vw, 2.25rem);
  }

  .nav[data-open="true"] .nav__lista li {
    border-top: 0;
  }

  .nav[data-open="true"] .nav__link {
    display: inline;
    padding: 0;
    font-family: var(--f-mono);
    font-size: 0.75rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
  }

  .tavola__campo {
    padding: clamp(1.5rem, 3vw, 2.5rem);
  }
}

@media (min-width: 64rem) {
  .griglia {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gap);
  }

  .griglia > * {
    grid-column: 1 / -1;
  }

  .apertura__didascalia { grid-column: 1 / 6; grid-row: 1; }
  .apertura .titolo-max { grid-column: 1 / 11; grid-row: 2; }
  .apertura__lead { grid-column: 7 / 12; grid-row: 3; }
  .apertura__disegno { grid-column: 1 / -1; grid-row: 4; }

  .intro-sezione {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gap);
    align-items: end;
  }

  .intro-sezione > :first-child { grid-column: 1 / 7; }
  .intro-sezione > :nth-child(2) { grid-column: 8 / 12; }

  .tavole {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .tavola--a { grid-column: 1 / 9; }
  .tavola--b { grid-column: 5 / 13; }
  .tavola--c { grid-column: 2 / 8; }
  .tavola--d { grid-column: 7 / 13; }

  .tavola--b .tavola__testo,
  .tavola--d .tavola__testo {
    justify-self: end;
    width: 100%;
  }

  .indice__voce {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: baseline;
  }

  .indice__voce .titolo-voce { grid-column: 1 / 6; }
  .indice__voce p { grid-column: 6 / 11; }
  .indice__voce .didascalia { grid-column: 11 / 13; text-align: right; }

  .studio__testo { grid-column: 1 / 6; }
  .studio__mappa { grid-column: 7 / 13; margin-top: var(--s-5); }

  .contatto {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gap);
  }

  .contatto > .titolo-sezione { grid-column: 1 / 9; }
  .contatto > .lead { grid-column: 1 / 7; }
  .contatto > .azioni { grid-column: 9 / 13; grid-row: 2; justify-content: flex-end; align-self: end; }
  .contatto > .cartiglio { grid-column: 1 / -1; }

  .cartiglio {
    grid-template-columns: 1.4fr 1.4fr 1fr 1.4fr 0.8fr;
  }

  .cartiglio__cella,
  .cartiglio__cella:nth-child(2n + 1) {
    border-top: 0;
    border-left: var(--linea);
  }

  .cartiglio__cella:first-child {
    border-left: 0;
  }

  .cartiglio--quattro {
    grid-template-columns: 1.4fr 1.4fr 1fr 1.4fr;
  }
}

@media (min-width: 80rem) {
  .apertura {
    padding-top: var(--s-6);
  }

  .apertura__lead { grid-column: 8 / 12; }

  .tavola--a .tavola__testo { margin-left: 0; }
  .tavola--c { margin-top: calc(var(--s-5) * -0.5); }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  .testata,
  .nav-toggle,
  .skip-link {
    display: none;
  }

  body {
    background: #FFFFFF;
  }
}

/* === contatti: consenso privacy === */

.form__field--consenso {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 0.75rem;
}

.form__field--consenso .form__input {
  width: 1.125rem;
  height: 1.125rem;
  min-height: 0;
  margin: 0.15rem 0 0;
  padding: 0;
  border: 1px solid var(--inchiostro);
  accent-color: var(--inchiostro);
}

.form__field--consenso .form__label {
  font-family: var(--f-testo);
  font-size: var(--t-small);
  letter-spacing: 0;
  text-transform: none;
  color: var(--grafite);
}