/* =========================================================
   Idea16 – foglio di stile
   I colori principali si cambiano nelle variabili qui sotto.
   ========================================================= */
:root {
  --blu:        #12355b;   /* colore principale (testata scura, titoli) */
  --blu-scuro:  #0b2240;
  --accento:    #2f7dd1;   /* bottoni e link */
  --accento-2:  #e8a33d;   /* dettagli caldi */
  --tinta:      #f2f6fb;   /* sfondo sezioni alternate */
  --testo:      #1f2a37;
  --testo-2:    #5b6776;
  --bordo:      #dde4ee;
  --bianco:     #fff;
  --raggio:     10px;
  --ombra:      0 10px 30px rgba(18, 53, 91, .08);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans:  system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --larghezza: 1160px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 106px; }
body { margin: 0; font-family: var(--sans); font-size: 17px; line-height: 1.65; color: var(--testo); background: var(--bianco); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accento); text-underline-offset: 3px; }
a:hover { color: var(--blu); }
h1, h2, h3 { color: var(--blu); line-height: 1.2; margin: 0 0 .6em; }
h1 { font-family: var(--serif); font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 700; }
h2 { font-family: var(--serif); font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 650; }
p  { margin: 0 0 1em; }

.contenitore { width: min(100% - 40px, var(--larghezza)); margin-inline: auto; }
.stretto { max-width: 820px; }
.centrato { text-align: center; margin-top: 2.5rem; }
.nascosto { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.salta { position: absolute; left: -9999px; top: 0; background: var(--blu); color: #fff; padding: .6em 1em; z-index: 100; }
.salta:focus { left: 10px; top: 10px; }

/* ---------- bottoni ---------- */
.bottone { display: inline-block; padding: .85em 1.8em; border-radius: 999px; background: var(--accento); color: #fff; font-weight: 650; font-size: .9rem; letter-spacing: .08em; text-transform: uppercase; text-decoration: none; border: 2px solid var(--accento); cursor: pointer; transition: background .2s, color .2s, transform .2s; font-family: inherit; }
.bottone:hover { background: var(--blu); border-color: var(--blu); color: #fff; transform: translateY(-1px); }
.bottone--contorno { background: transparent; color: var(--accento); }
.bottone--contorno:hover { background: var(--accento); border-color: var(--accento); }
.bottone--chiaro { background: #fff; color: var(--blu); border-color: #fff; }
.bottone--chiaro:hover { background: transparent; color: #fff; border-color: #fff; }

/* ---------- testata ---------- */
.testata { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--bordo); }
.testata__riga { display: flex; align-items: center; justify-content: space-between; min-height: 92px; gap: 1rem; }
.logo { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--blu); }
.logo img { height: 74px; width: auto; }
.piede__logo { height: 70px; width: auto; margin-bottom: .8rem; }
.logo__segno { width: 34px; height: 34px; border-radius: 8px; background: linear-gradient(135deg, var(--accento), var(--blu)); position: relative; }
.logo__segno::after { content: ""; position: absolute; inset: 9px 8px; border-top: 3px solid #fff; border-bottom: 3px solid #fff; }
.logo__testo { font-family: var(--serif); font-size: 1.55rem; font-weight: 700; letter-spacing: .01em; }
.menu ul { list-style: none; display: flex; gap: 2rem; margin: 0; padding: 0; }
.menu a { color: var(--testo); text-decoration: none; font-weight: 600; font-size: .95rem; padding: .4em 0; border-bottom: 2px solid transparent; }
.menu a:hover, .menu a[aria-current] { color: var(--blu); border-color: var(--accento-2); }
.menu-apri { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.menu-apri span { display: block; width: 24px; height: 2px; background: var(--blu); margin: 5px 0; transition: .25s; }

/* ---------- hero ---------- */
.hero { position: relative; color: #fff; background:
  radial-gradient(1200px 500px at 85% 20%, rgba(47,125,209,.45), transparent 60%),
  linear-gradient(135deg, var(--blu-scuro), var(--blu) 60%, #1d4f84);
  overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; background: url("../img/hero-onde.svg") right center / cover no-repeat; opacity: .5; }
.hero__testo { position: relative; padding: clamp(5rem, 14vw, 9.5rem) 0; max-width: 760px; margin-left: max(20px, calc((100% - var(--larghezza)) / 2)); }
.hero__motto { font-family: var(--serif); font-style: italic; font-size: clamp(1.4rem, 3vw, 2rem); color: var(--accento-2); margin: 0; }
.hero h1 { color: #fff; font-size: clamp(2.8rem, 7vw, 5rem); font-style: italic; margin-bottom: .35em; }
.hero__sotto { font-size: 1.15rem; color: rgba(255,255,255,.85); max-width: 560px; }
.hero__bottoni { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; }
.hero .bottone--contorno { color: #fff; border-color: rgba(255,255,255,.7); }
.hero .bottone--contorno:hover { background: #fff; color: var(--blu); border-color: #fff; }

/* ---------- testata pagine interne ---------- */
.testata-pagina { background: linear-gradient(135deg, var(--blu-scuro), var(--blu)); color: #fff; padding: 4.5rem 0 3.5rem; }
.testata-pagina h1 { color: #fff; margin: 0; }
.testata-pagina--grande { padding: 6rem 0 5rem; }
.testata-pagina__sotto { font-size: 1.15rem; color: rgba(255,255,255,.85); max-width: 640px; margin: 1rem 0 2rem; }
.testata-pagina .occhiello { color: var(--accento-2); }

/* ---------- sezioni ---------- */
.sezione { padding: clamp(4rem, 9vw, 6.5rem) 0; }
.sezione--tinta { background: var(--tinta); }
.sezione--scura { background: var(--blu); color: rgba(255,255,255,.88); }
.sezione--scura h2, .sezione--scura dt { color: #fff; }
.sezione--scura .occhiello { color: var(--accento-2); }
.occhiello { text-transform: uppercase; letter-spacing: .16em; font-size: .78rem; font-weight: 700; color: var(--accento); margin-bottom: .7rem; }
.intestazione-sezione { text-align: center; max-width: 700px; margin: 0 auto 3rem; }

.due-colonne { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.due-colonne--alto { align-items: start; }
.due-colonne--inversa > :first-child { order: 2; }
.immagine { margin: 0; border-radius: var(--raggio); overflow: hidden; box-shadow: var(--ombra); }

/* servizi (home) */
.griglia-servizi { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
@media (max-width: 960px) { .griglia-servizi { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .griglia-servizi { grid-template-columns: 1fr; } }
.servizio-breve { padding: 1.6rem; border: 1px solid var(--bordo); border-radius: var(--raggio); background: #fff; transition: box-shadow .2s, transform .2s, border-color .2s; }
.servizio-breve:hover { box-shadow: var(--ombra); transform: translateY(-3px); border-color: transparent; }
.servizio-breve h3 { margin: .9rem 0 .4rem; }
.servizio-breve p { color: var(--testo-2); font-size: .95rem; margin: 0; }
.icona { width: 30px; height: 30px; color: var(--accento); flex: none; }

/* call to action */
.cta { background: linear-gradient(90deg, var(--accento), #2563a8); color: #fff; padding: 3rem 0; }
.cta__riga { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.cta h2 { color: #fff; margin: 0 0 .2rem; }
.cta p { margin: 0; color: rgba(255,255,255,.85); }

/* punti di forza */
.griglia-forza { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.forza { border-top: 3px solid var(--accento-2); padding-top: 1.2rem; }
.forza__numero { font-family: var(--serif); font-size: 2.2rem; color: var(--bordo); font-weight: 700; display: block; line-height: 1; margin-bottom: .6rem; }
.forza p { color: var(--testo-2); font-size: .95rem; }

/* clienti */
.griglia-clienti { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin: 0; }
.griglia-clienti dt { font-weight: 700; font-size: 1.05rem; margin-bottom: .4rem; }
.griglia-clienti dd { margin: 0; font-size: .95rem; }

/* contatti */
.recapiti { list-style: none; padding: 0; margin: 1.5rem 0; display: grid; gap: 1.1rem; }
.recapiti li { display: flex; gap: .9rem; align-items: flex-start; }
.recapiti .icona { margin-top: 3px; width: 24px; height: 24px; }
.dati-legali { color: var(--testo-2); font-size: .85rem; }

/* modulo */
.modulo { background: #fff; border: 1px solid var(--bordo); border-radius: var(--raggio); padding: clamp(1.4rem, 3vw, 2.2rem); box-shadow: var(--ombra); }
.modulo__griglia { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.modulo label { display: flex; flex-direction: column; gap: .35rem; font-weight: 600; font-size: .9rem; color: var(--blu); }
.modulo .intera { grid-column: 1 / -1; }
.modulo input[type=text], .modulo input[type=email], .modulo input[type=tel], .modulo textarea { font: inherit; font-weight: 400; color: var(--testo); padding: .75em .9em; border: 1px solid var(--bordo); border-radius: 8px; background: #fbfcfe; width: 100%; }
.modulo input:focus, .modulo textarea:focus { outline: 2px solid var(--accento); outline-offset: 1px; background: #fff; }
.modulo .consenso { flex-direction: row; align-items: flex-start; gap: .6rem; font-weight: 400; color: var(--testo-2); margin: 1.2rem 0 1.4rem; font-size: .88rem; }
.modulo .consenso input { margin-top: .3em; }
.avviso { padding: .9em 1.1em; border-radius: 8px; background: #fff7e6; border-left: 4px solid var(--accento-2); font-size: .95rem; }
.avviso--ok { background: #e9f7ef; border-color: #2e9e5b; }
.avviso--errore { background: #fdecec; border-color: #d64545; }

/* pagina servizi */
.griglia-schede { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.5rem; }
.scheda { padding: 2rem; border-radius: var(--raggio); background: var(--tinta); }
.scheda h2 { font-family: var(--sans); font-size: 1.25rem; font-weight: 700; margin: 1rem 0 .6rem; }
.scheda p { color: var(--testo-2); margin: 0; }
.scheda__icona { width: 56px; height: 56px; border-radius: 14px; background: #fff; display: grid; place-items: center; box-shadow: var(--ombra); }

/* testi lunghi */
.testo-lungo h2 { margin-top: 1.6em; }
.testo-lungo h2:first-child { margin-top: 0; }
.testo-lungo h3 { margin-top: 1.6em; }
.indirizzo { display: flex; align-items: center; gap: .5rem; color: var(--testo-2); margin-top: 2rem; }
.casi { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 2rem 0; }
.caso { background: var(--tinta); border-radius: var(--raggio); padding: 1.4rem; border-top: 3px solid var(--accento); }
.caso h3 { margin: 0 0 .5rem; font-size: 1.02rem; }
.caso p { margin: 0; font-size: .95rem; color: var(--testo-2); }
.riquadro { background: var(--blu); color: #fff; border-radius: var(--raggio); padding: 1.6rem 1.8rem; font-size: 1.08rem; }
.riquadro p { margin: 0; }

/* piè di pagina */
.piede { background: var(--blu-scuro); color: rgba(255,255,255,.7); font-size: .92rem; }
.piede a { color: rgba(255,255,255,.9); }
.piede p { margin: 0 0 .3rem; }
.piede__griglia { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; padding: 3rem 0 2rem; }
.piede__marchio { font-family: var(--serif); color: #fff; font-size: 1.3rem; font-weight: 700; }
.piede__fondo { display: flex; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.12); padding: 1.2rem 0; font-size: .85rem; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .griglia-forza { grid-template-columns: 1fr 1fr; }
  .menu-apri { display: block; }
  .menu { position: fixed; inset: 92px 0 auto 0; background: #fff; border-bottom: 1px solid var(--bordo); box-shadow: var(--ombra); transform: translateY(-120%); transition: transform .3s; z-index: -1; }
  .menu.aperto { transform: none; }
  .menu ul { flex-direction: column; gap: 0; padding: .5rem 20px 1rem; }
  .menu a { display: block; padding: .9rem 0; border-bottom: 1px solid var(--bordo); }
  .menu-apri[aria-expanded=true] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-apri[aria-expanded=true] span:nth-child(2) { opacity: 0; }
  .menu-apri[aria-expanded=true] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}
@media (max-width: 760px) {
  .due-colonne, .casi, .piede__griglia { grid-template-columns: 1fr; }
  .due-colonne--inversa > :first-child { order: 0; }
  .modulo__griglia { grid-template-columns: 1fr; }
  .griglia-forza { grid-template-columns: 1fr; }
  .griglia-schede { grid-template-columns: 1fr; }
  .piede__fondo { flex-direction: column; gap: .4rem; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }