/* QualeSaldatrice — mobile-first, charcoal + ember */
:root{--bg:#120e0c;--panel:#1c1612;--ink:#f3ebe3;--muted:#b0a094;--line:#3a2e26;--accent:#f97316;--accent2:#ea580c;--soft:#241810;--warn:#fbbf24;--danger:#f87171;--radius:18px;--shadow:0 16px 40px rgba(0,0,0,.4)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(900px 420px at 85% -5%,rgba(249,115,22,.2) 0%,transparent 50%),radial-gradient(700px 380px at 5% 20%,rgba(234,88,12,.1) 0%,transparent 45%),linear-gradient(180deg,#1a1410,#120e0c 40%,#0c0908);color:var(--ink);font-family:"Segoe UI",ui-sans-serif,system-ui,sans-serif;line-height:1.65}
a{color:inherit;text-underline-offset:.15em}.wrap{width:min(1100px,calc(100% - 32px));margin-inline:auto}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:16px;background:var(--panel);padding:10px 14px;z-index:99;border-radius:8px;color:var(--ink)}
.site-header{position:sticky;top:0;z-index:40;background:rgba(18,14,12,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:850;letter-spacing:-.03em}
.brand svg{width:32px;height:32px}.menu{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.menu a{text-decoration:none;color:var(--muted);font-size:.93rem}.menu a:hover{color:var(--ink)}
.nav-cta{background:var(--accent)!important;color:#1a0a00!important;padding:8px 12px;border-radius:999px;font-weight:800}
.hero{padding:56px 0 18px}.eyebrow{display:inline-flex;gap:8px;align-items:center;text-transform:uppercase;letter-spacing:.11em;font-size:.74rem;font-weight:800;color:var(--accent)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}
h1,h2,h3{line-height:1.08;letter-spacing:-.03em;margin:0 0 .5em}h1{font-size:clamp(2.1rem,6.5vw,3.6rem);max-width:18ch}h2{font-size:clamp(1.55rem,4.2vw,2.35rem)}
.lede{font-size:clamp(1.05rem,2vw,1.2rem);color:var(--muted);max-width:62ch}
.hero-grid{display:grid;gap:24px}.hero-aside{background:linear-gradient(145deg,#2a1e16,#1a1410);color:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.hero-aside p{color:#c4b4a4}.kpi-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}
.kpi{background:rgba(249,115,22,.08);border:1px solid rgba(249,115,22,.22);border-radius:12px;padding:12px}.kpi strong{display:block;font-size:1.35rem;color:var(--accent)}.kpi span{font-size:.75rem;color:#b0a094}
.section{padding:48px 0}.section.tight{padding:28px 0}.grid{display:grid;gap:16px}.cards-3{grid-template-columns:1fr}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 2px 10px rgba(0,0,0,.25)}
.card a.stretch{text-decoration:none}.tag{display:inline-block;background:var(--soft);color:var(--accent);border:1px solid rgba(249,115,22,.25);border-radius:999px;padding:4px 9px;font-size:.78rem;font-weight:750}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.selector{background:#1a1410;color:#fff;border:1px solid var(--line);border-radius:26px;padding:22px;box-shadow:var(--shadow)}.selector p{color:#b0a094}
.steps{display:grid;gap:14px;margin-top:20px}.step{border:1px solid #3a2e26;border-radius:16px;padding:16px;background:#1c1612}
.step-head{display:flex;gap:10px;align-items:center;margin-bottom:10px}
.num{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:#1a0a00;font-weight:800;font-size:.85rem}
.field-grid{display:grid;gap:12px}.field label{display:block;font-weight:700;margin-bottom:6px;font-size:.92rem}
.field input,.field select{width:100%;appearance:auto;border:1px solid #4a3a30;background:#120e0c;color:#fff;border-radius:12px;padding:12px 14px;font:inherit}
.field input:focus,.field select:focus{outline:2px solid var(--accent);outline-offset:2px;border-color:var(--accent)}
.choices{display:grid;grid-template-columns:1fr;gap:8px}
.choice{appearance:none;border:1px solid #4a3a30;background:#120e0c;color:#fff;border-radius:12px;padding:12px 14px;text-align:left;font:inherit;font-weight:680;cursor:pointer}
.choice:hover,.choice:focus-visible{border-color:var(--accent)}.choice[aria-pressed="true"]{background:var(--accent);color:#1a0a00;border-color:var(--accent)}
.result{margin-top:16px;border-radius:16px;padding:18px;background:#f6f1eb;color:#1a1410}.result[hidden]{display:none}
.result h3{font-size:1.55rem}.result .warning{background:#fff6ea;border-left:4px solid var(--warn);padding:12px;border-radius:8px;margin:12px 0;color:#1a1410}
.result .danger{background:#fff1ee;border-left:4px solid var(--danger);padding:12px;border-radius:8px;margin:12px 0;color:#1a1410}
.result ul{padding-left:20px}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:999px;padding:11px 16px;font-weight:800;text-decoration:none;cursor:pointer}
.btn-primary{background:var(--accent);color:#1a0a00}.btn-outline{border:1px solid #c5b8ac;background:transparent;color:#1a1410}
.micro{font-size:.82rem;color:#5a4a40}.notice{display:flex;gap:10px;border:1px solid var(--line);background:var(--panel);padding:14px;border-radius:12px}
.callout{border-left:4px solid var(--accent);background:rgba(249,115,22,.08);padding:16px;border-radius:0 12px 12px 0}
.safety{border-left-color:var(--danger);background:rgba(248,113,113,.08)}.prose{max-width:760px}.prose h2{margin-top:1.35em}.prose table{width:100%;border-collapse:collapse}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}
.breadcrumbs{font-size:.85rem;color:var(--muted);padding-top:18px}.breadcrumbs a{color:inherit}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 16px}.faq details+details{margin-top:10px}.faq summary{font-weight:800;cursor:pointer}
.site-footer{background:#0a0706;color:#e6eef2;margin-top:56px;padding:44px 0 30px;border-top:1px solid var(--line)}
.footer-grid{display:grid;gap:28px}.footer-links{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 18px}
.footer-links a{color:#b0a094;font-size:.92rem;text-decoration:none}.footer-note{color:#7a6a5e;font-size:.84rem}
.affiliate-note{border:1px solid #3a2e26;border-radius:12px;padding:12px;margin-top:14px;color:#c4b4a4;font-size:.82rem}
@media(min-width:760px){.hero{padding:72px 0 28px}.hero-grid{grid-template-columns:1.5fr .8fr;align-items:end}.cards-3{grid-template-columns:repeat(3,1fr)}.grid.two{grid-template-columns:1fr 1fr}.selector{padding:30px}.field-grid{grid-template-columns:1fr 1fr}.choices{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:1.2fr 1fr}.footer-links{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.menu a:not(.nav-cta){display:none}.kpi-row{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
a:focus-visible,.btn:focus-visible,button:focus-visible,.choice:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #f97316;outline-offset:3px}