:root{--ink:#0f172a;--ink2:#334155;--mute:#64748b;--line:#e2e8f0;--bg:#ffffff;--soft:#f8fafc;--acc:#ea580c;--acc2:#c2410c;--accs:#fff7ed;--ok:#15803d;--r:10px;--max:1120px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink2);background:var(--bg);line-height:1.7;font-size:17px}
h1,h2,h3{font-family:'Space Grotesk','Inter',sans-serif;color:var(--ink);line-height:1.25;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.2vw,3rem)}h2{font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:.6em}h3{font-size:1.2rem;margin:1.2em 0 .4em}
p{margin-bottom:1em}a{color:var(--acc2)}a:hover{color:var(--acc)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;background:#fff;padding:8px;z-index:99}
/* header */
.top{background:var(--ink);color:#fff;position:sticky;top:0;z-index:50}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{color:#fff;text-decoration:none;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.15rem}
.logo span{color:var(--acc)}
.menu{display:flex;gap:4px;list-style:none;align-items:center}
.menu a{color:#cbd5e1;text-decoration:none;padding:8px 12px;border-radius:8px;font-size:.95rem}
.menu a:hover,.menu a[aria-current]{color:#fff;background:#1e293b}
.menu .cta-sm{background:var(--acc);color:#fff}.menu .cta-sm:hover{background:var(--acc2)}
.tog{display:none;background:none;border:1px solid #334155;color:#fff;border-radius:8px;padding:6px 10px;font-size:1.1rem;cursor:pointer}
@media(max-width:860px){.tog{display:block}.menu{display:none;position:absolute;top:64px;left:0;right:0;background:var(--ink);flex-direction:column;padding:12px 20px 20px;align-items:stretch}.menu.open{display:flex}}
/* hero */
.hero{background:linear-gradient(180deg,var(--ink) 0,#1e293b 100%);color:#e2e8f0;padding:56px 0 64px}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.hero h1{color:#fff;margin-bottom:.5em}.hero p.lead{font-size:1.12rem;color:#cbd5e1}
.ticks{list-style:none;margin:18px 0 26px}.ticks li{padding-left:28px;position:relative;margin:6px 0}
.ticks li:before{content:"";position:absolute;left:0;top:.45em;width:16px;height:16px;border-radius:50%;background:var(--acc);box-shadow:inset 0 0 0 4px #fdba74}
.btn{display:inline-block;padding:13px 22px;border-radius:var(--r);font-weight:600;text-decoration:none;border:2px solid transparent}
.btn-a{background:var(--acc);color:#fff}.btn-a:hover{background:var(--acc2);color:#fff}
.btn-g{border-color:#475569;color:#fff;margin-left:8px}.btn-g:hover{border-color:#fff;color:#fff}
.hero-plain .wrap{display:block;max-width:860px}
@media(max-width:860px){.hero .wrap{grid-template-columns:1fr}.btn-g{margin:10px 0 0}}
/* calculator */
.calc{background:#fff;color:var(--ink2);border-radius:16px;padding:26px;box-shadow:0 20px 50px rgba(0,0,0,.35)}
.calc h2{font-size:1.25rem;margin-bottom:.8em}
.calc label{display:block;font-weight:600;color:var(--ink);font-size:.92rem;margin:14px 0 6px}
.calc input[type=range]{width:100%;accent-color:var(--acc)}
.calc select{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff}
.calc .vol{font-family:'Space Grotesk',sans-serif;font-size:1.05rem;color:var(--ink)}
.calc .total{margin-top:18px;padding:16px;background:var(--accs);border-radius:10px;display:flex;justify-content:space-between;align-items:baseline}
.calc .total b{font-family:'Space Grotesk',sans-serif;font-size:2rem;color:var(--acc2)}
.calc .unit{font-size:.85rem;color:var(--mute);margin-top:8px}
.calc .btn{width:100%;text-align:center;margin-top:14px}
/* sections */
.sec{padding:64px 0}.sec.alt{background:var(--soft)}
.sec .intro{max-width:760px;color:var(--mute);font-size:1.05rem}
.crumbs{font-size:.88rem;color:var(--mute);padding:14px 0}.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px}.crumbs li+li:before{content:"›";margin-right:6px}
.prose{max-width:780px}.prose ul,.prose ol{margin:0 0 1.2em 1.3em}.prose li{margin:.35em 0}
.spec{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px;margin-top:26px}
.spec div{border:1px solid var(--line);border-radius:var(--r);padding:20px;background:#fff}
.spec b{display:block;font-family:'Space Grotesk',sans-serif;color:var(--ink);font-size:1.08rem;margin-bottom:4px}
.steps{counter-reset:s;list-style:none;margin-top:24px;display:grid;gap:16px}
.steps li{counter-increment:s;padding:18px 18px 18px 70px;position:relative;border-left:3px solid var(--acc);background:#fff;border-radius:0 var(--r) var(--r) 0}
.steps li:before{content:counter(s);position:absolute;left:18px;top:16px;width:36px;height:36px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-family:'Space Grotesk',sans-serif;font-weight:700}
.vs{width:100%;border-collapse:collapse;margin:20px 0;font-size:.96rem;min-width:600px}
.vs th,.vs td{border:1px solid var(--line);padding:11px 13px;text-align:left;vertical-align:top}
.vs thead th{background:var(--ink);color:#fff}.vs td:first-child{font-weight:600;color:var(--ink)}
.scroll{overflow-x:auto}
.plats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-top:20px}
.plats a,.plats span{display:block;padding:12px;border:1px solid var(--line);border-radius:8px;text-align:center;text-decoration:none;color:var(--ink);background:#fff;font-weight:500}
.plats a:hover{border-color:var(--acc);color:var(--acc2)}
.note{background:var(--accs);border:1px solid #fed7aa;border-radius:var(--r);padding:16px 18px;margin:18px 0}
.src{font-size:.85rem;color:var(--mute)}
.faq details{border-bottom:1px solid var(--line);padding:16px 0}
.faq summary{cursor:pointer;font-weight:600;color:var(--ink);list-style:none;position:relative;padding-right:30px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:0;top:-2px;font-size:1.4rem;color:var(--acc)}
.faq details[open] summary:after{content:"\2212"}
.faq details p{margin:10px 0 0}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:22px}
.card{border:1px solid var(--line);border-radius:var(--r);padding:22px;background:#fff}
.card h3{margin-top:0}
.band{background:var(--acc);color:#fff;padding:44px 0;text-align:center}
.band h2{color:#fff}.band .btn{background:#fff;color:var(--acc2)}
/* form */
.form{display:grid;gap:14px;max-width:640px}
.form label{font-weight:600;color:var(--ink);font-size:.93rem}
.form input,.form textarea,.form select{width:100%;padding:12px;border:1px solid #cbd5e1;border-radius:8px;font:inherit}
.hp{position:absolute;left:-9999px}
.msg{padding:14px;border-radius:8px;margin-bottom:14px}.msg.ok{background:#dcfce7;color:#166534}.msg.ko{background:#fee2e2;color:#991b1b}
/* footer */
.foot{background:var(--ink);color:#94a3b8;padding:44px 0 24px;font-size:.93rem}
.foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}
.foot h3{color:#fff;font-size:1rem;margin:0 0 10px}
.foot a{color:#cbd5e1;text-decoration:none}.foot a:hover{color:#fff}
.foot ul{list-style:none}.foot li{margin:6px 0}
.foot .legal{border-top:1px solid #1e293b;margin-top:28px;padding-top:16px;font-size:.85rem}
@media(max-width:760px){.foot .cols{grid-template-columns:1fr}}
.post-meta{color:var(--mute);font-size:.9rem;margin-bottom:1.4em}