/* CaldaiePer — stile sito statico (assistenza caldaie Milano) */
:root{
  --accent:#d92b1c;
  --blue:#0e5fa8;
  --ink:#152233;
  --muted:#5b6b7f;
  --line:#e3e9f0;
  --bg:#f6f9fc;
  --white:#fff;
  --wa:#25d366;
  --radius:14px;
  --shadow:0 10px 30px rgba(21,34,51,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  color:var(--ink);
  background:var(--white);
  line-height:1.6;
}
img,svg{max-width:100%}
a{color:var(--blue)}
h1,h2,h3{line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(1.9rem,4vw,2.9rem);letter-spacing:-.02em}
.hero h1 span,.page-hero h1 span{color:var(--accent)}
h2{font-size:clamp(1.4rem,3vw,2rem);letter-spacing:-.01em}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.section{padding:64px 0}
.section.alt{background:var(--bg)}
.lead{font-size:1.15rem;color:var(--muted);max-width:760px}
.small{font-size:.9rem;color:var(--muted)}
em{color:var(--accent);font-style:normal}

/* Header */
.top{position:sticky;top:0;z-index:50;background:var(--white);border-bottom:1px solid var(--line);height:66px;display:flex;align-items:center}
.top .wrap{display:flex;align-items:center;gap:18px;width:100%}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;color:var(--ink);text-decoration:none;white-space:nowrap}
.logo .mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:var(--blue);color:#fff;flex:0 0 38px}
.logo .mark svg{width:20px;height:20px;fill:#fff}
.logo em{color:var(--accent)}
.top .spacer{flex:1}
nav.main{display:flex;align-items:center;gap:22px}
nav.main a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem}
nav.main a:hover{color:var(--accent)}
.nav-tel{margin-left:8px}
.hamb{display:none;cursor:pointer;padding:10px}
.hamb span{display:block;width:24px;height:3px;background:var(--ink);border-radius:2px;margin:5px 0}
#nav-toggle{display:none}

/* Bottoni */
.btn{display:inline-flex;align-items:center;gap:10px;padding:12px 20px;border-radius:999px;font-weight:700;text-decoration:none;font-size:1rem;border:2px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn svg{width:18px;height:18px;fill:currentColor}
.btn-call{background:var(--accent);color:#fff}
.btn-wa{background:var(--wa);color:#fff}
.btn-blue{background:var(--blue);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-big{padding:16px 28px;font-size:1.1rem}

/* Hero */
.hero{padding:56px 0 48px;background:linear-gradient(180deg,#f6f9fc 0%,#fff 100%)}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:8px;background:#fdeceb;color:var(--accent);font-weight:700;font-size:.85rem;padding:6px 14px;border-radius:999px;margin-bottom:16px}
.hero p.lead{font-size:1.2rem}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin:22px 0}
.checks{display:grid;gap:8px;margin:0;padding:0;list-style:none}
.checks li{display:flex;gap:10px;align-items:flex-start;color:var(--ink)}
.checks li::before{content:"✔";color:var(--wa);font-weight:800;flex:0 0 auto}
.hero-media{position:relative}
.hero-media>svg{display:block;width:100%;height:auto}
.float-card{position:absolute;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:12px 16px;font-size:.9rem;line-height:1.35}
.float-card b{display:block}
.fc-1{top:8%;left:-6%}
.fc-2{bottom:8%;right:-4%}

/* Strip */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white)}
.strip .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:22px 20px}
.strip .item{display:flex;gap:12px;align-items:flex-start;font-size:.95rem}
.strip .item b{display:block}
.strip .item svg{width:26px;height:26px;fill:var(--blue);flex:0 0 auto;margin-top:2px}

/* Grid e card */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 2px 8px rgba(21,34,51,.04)}
.card h3{margin-top:12px}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:10px}
.card a{font-weight:700;text-decoration:none}
.card .ico{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;background:#e8f1fa;color:var(--blue)}
.card .ico svg{width:24px;height:24px;fill:var(--blue)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px;position:relative}
.step .n{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;margin-bottom:12px}
.step p{color:var(--muted);font-size:.95rem}

/* Tabelle */
table{width:100%;border-collapse:collapse;margin:18px 0;background:var(--white)}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--blue);color:#fff;font-size:.9rem}
tr:last-child td{border-bottom:none}
tbody tr:nth-child(even){background:#fafcfe}

/* FAQ */
.faq{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:6px 24px}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq details:last-child{border-bottom:none}
.faq summary{cursor:pointer;font-weight:700;font-size:1.02rem}
.faq summary::marker{color:var(--accent)}
.faq details p{color:var(--muted);margin:.6em 0 0}

/* Zone */
.zones{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.zone{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:10px 14px;font-size:.95rem}

/* Final CTA */
.final{background:var(--ink);color:#fff;border-radius:20px;padding:44px 40px;text-align:center}
.final h2{color:#fff}
.final p{color:#c8d3e0}
.final .phone{display:block;font-size:clamp(1.8rem,5vw,2.6rem);font-weight:800;color:#fff;text-decoration:none;margin:10px 0 22px;letter-spacing:.01em}
.final .phone:hover{color:var(--accent)}
.final .cta-row{justify-content:center}
.final .btn-ghost{color:#fff;border-color:#3a4a5e}

/* Prose (pagine interne) */
.prose{max-width:820px}
.prose h2{margin-top:1.6em}
.prose ul,.prose ol{margin:0 0 1em;padding-left:1.3em}
.prose li{margin-bottom:.4em}
.note{background:#eef6fd;border-left:4px solid var(--blue);border-radius:8px;padding:16px 18px;font-size:.95rem;color:var(--ink);margin:20px 0}
.breadcrumb{font-size:.9rem;color:var(--muted);margin:22px 0 0}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--accent)}
.page-hero{padding:40px 0 8px}
.page-hero h1{max-width:820px}
.page-hero .lead{font-size:1.12rem}

/* Footer */
footer{background:var(--ink);color:#c8d3e0;padding:44px 0 28px;margin-top:56px;font-size:.95rem}
footer a{color:#fff;text-decoration:none}
footer a:hover{text-decoration:underline}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:28px}
footer h4{color:#fff;margin:0 0 10px;font-size:1rem}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:8px}
footer .base{border-top:1px solid #2c3b4d;padding-top:18px;font-size:.85rem;color:#8ea0b5}
footer .logo{color:#fff;margin-bottom:10px}

/* Sticky mobile */
.sticky{display:none}

/* Media queries */
@media(max-width:960px){
  .hero .wrap{grid-template-columns:1fr;gap:32px}
  .grid{grid-template-columns:repeat(2,1fr)}
  .strip .wrap{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .zones{grid-template-columns:repeat(2,1fr)}
  footer .cols{grid-template-columns:1fr 1fr}
  nav.main{
    display:none;
    position:absolute;top:66px;left:0;right:0;
    background:var(--white);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:0;
    padding:8px 20px 16px;
  }
  nav.main a{padding:10px 0;width:100%;border-bottom:1px solid var(--line)}
  .hamb{display:block}
  #nav-toggle:checked ~ nav.main{display:flex}
  .fc-1{left:0}
  .fc-2{right:0}
}
@media(max-width:640px){
  .section{padding:44px 0}
  .grid,.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}
  .zones{grid-template-columns:1fr}
  footer .cols{grid-template-columns:1fr}
  .final{padding:32px 22px}
  .float-card{position:static;margin:10px 0 0;display:inline-block}
  .top .nav-tel{display:none}
  .sticky{
    display:flex;position:fixed;bottom:0;left:0;right:0;z-index:60;
    gap:10px;padding:10px 14px;background:var(--white);
    border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(21,34,51,.10);
  }
  .sticky .btn{flex:1;justify-content:center;padding:12px 8px;font-size:.95rem}
  body{padding-bottom:72px}
}