/* ============================================
   Termoidraulica Mongelli · foglio di stile
   ============================================ */

:root {
  --navy: #1C4E9A;
  --navy-dark: #143A74;
  --sky: #8DD3F5;
  --sky-soft: #EAF6FD;
  --orange: #B8470B;
  --orange-bright: #F4792B;
  --orange-soft: #FEF0E6;
  --ink: #15202B;
  --ink-2: #4A5563;
  --ink-3: #65717E;
  --line: #E4E8EE;
  --bg: #FFFFFF;
  --bg-alt: #F6F8FB;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(20, 58, 116, 0.08);
  --container: 1140px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0 0 .5em; line-height: 1.15; letter-spacing: -0.015em; }
h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.container { width: min(100% - 32px, var(--container)); margin-inline: auto; }
.ico { width: 18px; height: 18px; fill: currentColor; flex: none; }

.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: .75rem;
}
.lead { font-size: 1.15rem; color: var(--ink-2); max-width: 56ch; }
.stars { color: #F5A623; letter-spacing: .05em; font-size: .95rem; }

/* ---------- Bottoni ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .7rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: .95rem;
  border: 1.5px solid transparent;
  transition: background .15s, color .15s, border-color .15s, transform .15s;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn--primary { background: var(--orange); color: #fff; }
.btn--primary:hover { background: #9E3C08; }
.btn--ghost { background: #fff; color: var(--navy); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--navy); }
.btn--outline { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn--outline:hover { background: var(--navy); color: #fff; }
.btn--lg { padding: .9rem 1.6rem; font-size: 1rem; }
.btn--block { width: 100%; }

/* ---------- Barra superiore ---------- */
.topbar { background: var(--navy-dark); color: #fff; font-size: .85rem; }
.topbar__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 38px;
}
.topbar__item { display: inline-flex; align-items: center; gap: .4rem; color: rgba(255,255,255,.85); }
.topbar__phone { margin-left: auto; color: #fff; font-weight: 600; }
.topbar__phone:hover { text-decoration: none; color: var(--sky); }

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}
.brand { display: inline-flex; align-items: center; gap: .7rem; }
.brand:hover { text-decoration: none; }
.brand__mark { width: 44px; height: 44px; flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1.05; }
.brand__name { font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-2); }
.brand__sub { font-size: 1.25rem; font-weight: 800; color: var(--navy); letter-spacing: -.01em; }

.nav { display: flex; align-items: center; gap: 1.6rem; }
.nav a { color: var(--ink-2); font-weight: 500; font-size: .95rem; }
.nav a:hover { color: var(--navy); text-decoration: none; }
.nav__cta { color: #fff !important; padding: .6rem 1.1rem; }
.nav__cta:hover { color: #fff !important; }

.burger {
  display: none;
  width: 44px; height: 44px;
  background: none; border: 0; padding: 10px;
  flex-direction: column; justify-content: space-between;
  cursor: pointer;
}
.burger span { display: block; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s, opacity .2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(11px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-11px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(900px 500px at 85% -10%, var(--sky-soft) 0%, transparent 60%),
    linear-gradient(180deg, #fff 0%, var(--bg-alt) 100%);
  padding: clamp(3rem, 7vw, 6rem) 0 clamp(3rem, 6vw, 5rem);
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.3fr .9fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.hero h1 { max-width: 17ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1.75rem 0 1.5rem; }
.trust { display: flex; flex-wrap: wrap; gap: 1.25rem 1.75rem; color: var(--ink-2); font-size: .9rem; }
.trust li { display: inline-flex; align-items: center; gap: .45rem; }
.trust .ico { color: #2BA36B; }

.hero__card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 1.75rem;
  max-width: 400px;
  margin-left: auto;
}
.hero__card-top { display: flex; align-items: center; gap: .9rem; margin-bottom: 1.25rem; }
.hero__logo { width: 56px; height: 56px; flex: none; }
.hero__card-top strong { display: block; font-size: 1.05rem; }
.hero__card-top span { color: var(--ink-3); font-size: .85rem; }
.hero__list { border-top: 1px solid var(--line); padding-top: 1.1rem; }
.hero__list li { display: flex; align-items: center; gap: .7rem; padding: .5rem 0; font-weight: 500; }
.dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.dot--orange { background: var(--orange-bright); }
.dot--sky { background: var(--sky); }
.dot--navy { background: var(--navy); }
.dot--gray { background: #B9C2CE; }
.hero__card-cta {
  display: block;
  margin-top: 1.1rem;
  text-align: center;
  background: var(--navy);
  color: #fff;
  padding: .85rem;
  border-radius: 12px;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: .02em;
}
.hero__card-cta:hover { text-decoration: none; background: var(--navy-dark); }

/* ---------- Sezioni ---------- */
.section { padding: clamp(3.5rem, 7vw, 6rem) 0; }
.section--alt { background: var(--bg-alt); }
.section__head { max-width: 680px; margin-bottom: 2.5rem; }
.section__head--row { max-width: none; display: flex; justify-content: space-between; align-items: flex-end; gap: 1.5rem; flex-wrap: wrap; }
.section__desc { color: var(--ink-2); font-size: 1.05rem; }
.section__links { display: flex; gap: 1.25rem; font-weight: 600; }

.grid { display: grid; gap: 1.25rem; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }

/* ---------- Card servizi ---------- */
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: transparent; }
.card p { margin: 0; color: var(--ink-2); font-size: .95rem; }
.card__icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: grid; place-items: center;
  margin-bottom: 1.1rem;
}
.card__icon svg { width: 26px; height: 26px; }
.card__icon--blue { background: #E8F0FB; color: var(--navy); }
.card__icon--navy { background: var(--navy); color: #fff; }
.card__icon--orange { background: var(--orange-soft); color: var(--orange); }
.card__icon--sky { background: var(--sky-soft); color: #1C8ACF; }
.card__icon--gray { background: #EEF1F5; color: var(--ink-2); }

.service-strip {
  margin-top: 1.5rem;
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.service-strip__text { font-size: .98rem; line-height: 1.55; color: rgba(255,255,255,.9); }
.service-strip__text strong { display: block; color: #fff; margin-bottom: .2rem; font-size: 1.05rem; }
.service-strip .btn--outline { color: #fff; border-color: rgba(255,255,255,.7); }
.service-strip .btn--outline:hover { background: #fff; color: var(--navy); }

/* ---------- Passaggi ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; counter-reset: step; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.6rem; }
.step p { margin: 0; color: var(--ink-2); font-size: .95rem; }
.step__num {
  display: inline-grid; place-items: center;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--orange); color: #fff; font-weight: 800;
  margin-bottom: 1rem;
}

/* ---------- Galleria ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 220px;
  gap: 1rem;
}
.gallery__item { margin: 0; position: relative; border-radius: var(--radius); overflow: hidden; }
.gallery__item--tall { grid-row: span 2; }
.ph { position: absolute; inset: 0; }
.ph--1 { background: linear-gradient(135deg, #DCE7F5, #B9CFEA); }
.ph--2 { background: linear-gradient(135deg, #E6F4FB, #BFE3F5); }
.ph--3 { background: linear-gradient(135deg, #FCE9DB, #F7C7A5); }
.ph--4 { background: linear-gradient(135deg, #E9EEF5, #CBD5E2); }
.ph--5 { background: linear-gradient(135deg, #D7E3F3, #A9C2E3); }
.ph--6 { background: linear-gradient(135deg, #EEF2F7, #D4DCE7); }
.gallery__item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 1rem 1.1rem;
  background: linear-gradient(180deg, transparent, rgba(20, 32, 43, .75));
  color: #fff;
  display: flex; flex-direction: column; gap: .1rem;
}
.gallery__item figcaption strong { font-size: 1rem; }
.gallery__item figcaption span { font-size: .85rem; opacity: .85; }
.note { margin-top: 1rem; font-size: .85rem; color: var(--ink-3); }

/* ---------- Chi siamo ---------- */
.about { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.about__text p { color: var(--ink-2); }
.checks { margin-top: 1.25rem; display: grid; gap: .55rem; }
.checks li { position: relative; padding-left: 1.7rem; font-weight: 500; }
.checks li::before {
  content: "";
  position: absolute; left: 0; top: .3em;
  width: 18px; height: 18px; border-radius: 50%;
  background: #E3F5EC url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%232BA36B'%3E%3Cpath d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4L9 16.2Z'/%3E%3C/svg%3E") center/12px no-repeat;
}
.about__side { display: grid; gap: 1rem; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem 1.5rem; }
.stat strong { display: block; font-size: 1.8rem; font-weight: 800; color: var(--navy); line-height: 1.1; }
.stat span { color: var(--ink-2); font-size: .9rem; }
.brands { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem 1.5rem; }
.brands__label { display: block; font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); margin-bottom: .6rem; font-weight: 600; }
.brands__row { display: flex; flex-wrap: wrap; gap: .5rem; }
.brands__row span { padding: .35rem .8rem; border-radius: 999px; background: var(--bg-alt); border: 1px solid var(--line); font-weight: 600; font-size: .9rem; }

/* ---------- Recensioni ---------- */
.review {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  display: flex; flex-direction: column; gap: .8rem;
}
.review p { margin: 0; color: var(--ink-2); font-size: .97rem; flex: 1; }
.review footer { font-weight: 600; font-size: .9rem; color: var(--ink); }

/* ---------- Contatti ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.contact__info > p { color: var(--ink-2); }
.contact__list { display: grid; gap: 1rem; margin: 1.5rem 0; }
.contact__list li { display: flex; gap: .9rem; align-items: flex-start; }
.contact__list .ico { color: var(--navy); margin-top: .35rem; width: 20px; height: 20px; }
.contact__list span { display: block; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); font-weight: 600; }
.contact__list a, .contact__list b { font-weight: 600; font-size: 1.02rem; color: var(--ink); }
.contact__list a:hover { color: var(--navy); }
.map { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.map iframe { width: 100%; height: 240px; border: 0; display: block; }

.form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: grid;
  gap: 1rem;
  box-shadow: var(--shadow);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form label { display: grid; gap: .4rem; font-size: .88rem; font-weight: 600; color: var(--ink-2); }
.form input, .form select, .form textarea {
  font: inherit;
  font-size: 1rem;
  padding: .75rem .9rem;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  width: 100%;
}
.form input:focus, .form select:focus, .form textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(28, 78, 154, .12);
}
.form textarea { resize: vertical; }
.form__consent { display: flex !important; flex-direction: row; align-items: flex-start; gap: .6rem; font-weight: 400 !important; }
.form__consent input { width: 18px; height: 18px; margin-top: .15rem; }
.form__msg { margin: 0; font-size: .9rem; color: #2BA36B; font-weight: 600; min-height: 1.2em; }
.form__msg.is-error { color: #C62828; }
.form .is-invalid { border-color: #C62828; }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: rgba(255,255,255,.75); padding: 2rem 0; font-size: .9rem; }
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.footer__brand { display: grid; gap: .2rem; }
.footer__brand strong { color: #fff; }
.footer__links { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.footer__links a { color: rgba(255,255,255,.85); }
.footer__links a:hover { color: #fff; }

/* ---------- Barra chiamata mobile ---------- */
.callbar { display: none; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .grid--3, .steps { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .about, .contact { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .topbar__item:not(.topbar__phone) { display: none; }
  .topbar__inner { justify-content: center; }
  .topbar__phone { margin-left: 0; }

  .burger { display: flex; }
  .nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: .5rem 16px 1rem;
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: .8rem 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .nav__cta { margin-top: .75rem; border-bottom: 0 !important; text-align: center; }

  .grid--3, .steps, .gallery { grid-template-columns: 1fr; }
  .gallery { grid-auto-rows: 200px; }
  .gallery__item--tall { grid-row: span 1; }
  .service-strip { flex-direction: column; align-items: flex-start; }
  .form__row { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; align-items: flex-start; }

  body { padding-bottom: 64px; }
  .callbar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 60;
    background: #fff;
    border-top: 1px solid var(--line);
    padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
    gap: 8px;
  }
  .callbar__btn {
    text-align: center;
    padding: .8rem;
    border-radius: 10px;
    font-weight: 700;
  }
  .callbar__btn--call { background: var(--orange); color: #fff; }
  .callbar__btn--quote { background: var(--navy); color: #fff; }
  .callbar__btn:hover { text-decoration: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .card { transition: none; }
}