:root{--ink:#14110f;--ink2:#1f1b18;--paper:#f4efe7;--paper2:#ebe3d6;--red:#d90429;--red-d:#a5031f;--muted:#6b625a;--line:rgba(20,17,15,.14);--hero-accent:#ff4b45;
--fd:'Oswald',sans-serif;--fb:'Inter',system-ui,sans-serif;--w:1200px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
section[id]{scroll-margin-top:90px}
body{font-family:var(--fb);color:var(--ink);background:var(--paper);line-height:1.6;font-size:1.0625rem;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.skip{position:absolute;left:-999px}.skip:focus{left:1rem;top:1rem;background:#fff;padding:.5rem 1rem;z-index:99}
.wrap{max-width:var(--w);margin:0 auto;padding:0 clamp(1.25rem,4vw,2.5rem)}
h1,h2,h3{font-family:var(--fd);text-transform:uppercase;letter-spacing:.01em;line-height:1.02;font-weight:600}
h1{font-size:clamp(2.6rem,6.5vw,5.25rem)}
h2{font-size:clamp(2rem,4.2vw,3.25rem);margin-bottom:1.25rem}
h3{font-size:1.35rem;margin-bottom:.5rem}
.eyebrow{font-family:var(--fd);text-transform:uppercase;letter-spacing:.2em;font-size:.85rem;color:var(--red);margin-bottom:.9rem;font-weight:600}
.btn{display:inline-block;font-family:var(--fd);text-transform:uppercase;letter-spacing:.1em;font-size:.95rem;font-weight:600;padding:.95rem 1.7rem;text-decoration:none;border:2px solid transparent;transition:background .2s,color .2s,border-color .2s;cursor:pointer}
.btn-red{background:var(--red);color:#fff}.btn-red:hover{background:var(--red-d)}
.btn-line{border-color:currentColor;color:#fff}.btn-line:hover{background:#fff;color:var(--ink)}
.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:var(--red)}
:focus-visible{outline:3px solid var(--red);outline-offset:3px}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(20,17,15,.96);color:#fff;backdrop-filter:blur(6px)}
.header-in{display:flex;align-items:center;justify-content:space-between;height:76px;gap:1rem}
.logo{display:flex;align-items:center;gap:.7rem;text-decoration:none}
.logo svg{width:34px;height:34px}
.logo-txt{font-family:var(--fd);text-transform:uppercase;line-height:1}
.logo-txt b{display:block;font-size:1.35rem;font-weight:600;letter-spacing:.06em}
.logo-txt small{font-size:.66rem;letter-spacing:.22em;color:#bfb5a9}
.nav{display:flex;align-items:center;gap:1.8rem}
.nav-link{text-decoration:none;font-size:.95rem;color:#d8cfc4}.nav-link:hover,.nav-link.active{color:#fff}
.nav .btn{padding:.7rem 1.2rem}
/* hero */
.hero{position:relative;min-height:min(88vh,780px);display:flex;align-items:flex-end;color:#fff;background:#000 url(images/hero.jpg) center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,8,7,.88) 0%,rgba(10,8,7,.55) 55%,rgba(10,8,7,.2) 100%),linear-gradient(0deg,rgba(10,8,7,.7),transparent 50%)}
.hero .wrap{position:relative;width:100%;padding-bottom:clamp(3rem,8vw,6rem);padding-top:6rem}
.hero h1{max-width:16ch;margin-bottom:1.4rem;text-shadow:0 2px 22px rgba(0,0,0,.6)}
.hero h1 em{font-style:normal;color:var(--hero-accent);white-space:nowrap}
.hero p{max-width:46ch;font-size:1.15rem;color:#e6ddd2;margin-bottom:2rem}
.hero-ctas{display:flex;flex-wrap:wrap;gap:1rem}
/* strip */
.strip{background:var(--red);color:#fff}
.strip .wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;padding-top:1.6rem;padding-bottom:1.6rem}
.strip div{font-family:var(--fd);text-transform:uppercase;letter-spacing:.06em;font-size:1.05rem}
.strip span{display:block;font-family:var(--fb);text-transform:none;letter-spacing:0;font-size:.9rem;opacity:.85}
/* sections */
.section{padding:clamp(4rem,9vw,7rem) 0}
.section-dark{background:var(--ink);color:#f1ebe2}
.section-sand{background:var(--paper2)}
.lead{max-width:60ch;color:var(--muted);font-size:1.12rem;margin-bottom:3rem}
.section-dark .lead{color:#b9afa4}
.quote{color:#8f1d17}
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:2rem}
.quotes blockquote{border-top:2px solid var(--red);padding-top:1.4rem}
.quotes blockquote p{font-size:1.12rem;margin-bottom:.9rem}
.quotes blockquote p::before{content:"\201C";color:var(--red);font-size:1.5rem;line-height:0;vertical-align:-.35rem;margin-right:.15rem}
.quotes cite{font-style:normal;font-size:.9rem;color:var(--muted)}
@media (max-width:800px){.quotes{grid-template-columns:1fr}}
.trio{display:grid;grid-template-columns:repeat(4,1fr);gap:2.5rem}
.trio .num{font-family:var(--fd);font-size:3rem;color:var(--red);line-height:1;margin-bottom:1rem}
.trio>div{border-top:2px solid var(--ink);padding-top:1.5rem}
.trio p{color:var(--muted)}
/* split */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(2rem,6vw,5rem);align-items:center}
.split img{width:100%;aspect-ratio:3/2;object-fit:cover}
.split p{margin-bottom:1.5rem;color:#c9bfb4}
.ticks{list-style:none;margin:0 0 2rem}
.ticks li{padding:.55rem 0 .55rem 1.8rem;position:relative;border-bottom:1px solid rgba(255,255,255,.1)}
.ticks li::before{content:"";position:absolute;left:0;top:1.05rem;width:12px;height:3px;background:var(--red)}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.steps>div{padding:2rem 1.5rem 0 0}
.step-no{font-family:var(--fd);font-size:.9rem;letter-spacing:.2em;color:var(--red);display:block;margin-bottom:.8rem}
.steps h3{font-size:1.2rem}
.steps p{color:var(--muted);font-size:.98rem}
/* belt */
.belt{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(2rem,6vw,5rem);align-items:center}
.belt img{aspect-ratio:3/2;object-fit:cover;width:100%}
.sols{display:grid;gap:1.75rem;margin-top:1rem}
.sol{display:grid;grid-template-columns:3rem 1fr;gap:1rem}
.sol-rule{width:100%;height:3px;background:var(--red);margin-top:.75rem}
.sol p{color:var(--muted)}
.sol-list{list-style:none;margin:.35rem 0 0}
.sol-list li{padding:.35rem 0 .35rem 1.4rem;position:relative;color:var(--muted)}
.sol-list li::before{content:"";position:absolute;left:0;top:1.05rem;width:10px;height:3px;background:var(--red)}
/* cta */
.cta{text-align:center}
.cta h2{max-width:18ch;margin:0 auto 1.2rem}
.cta p{max-width:52ch;margin:0 auto 2rem;color:#b9afa4}
.ph{background:rgba(179,38,30,.15);padding:0 .25em;border-radius:2px}
/* contact */
.page-head{background:var(--ink);color:#fff;padding:clamp(4rem,9vw,6.5rem) 0 clamp(3rem,6vw,4.5rem)}
.page-head p{color:#c9bfb4;max-width:55ch;font-size:1.12rem}
.page-head .eyebrow{max-width:36ch}
.eyebrow-sub{margin:-.7rem 0 .9rem;color:#8d8478;font-size:.92rem}
.contact-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(2rem,6vw,5rem)}
form{display:grid;gap:1.1rem}
.row{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.35rem;letter-spacing:.02em}
input,select,textarea{width:100%;font:inherit;font-size:1rem;padding:.85rem 1rem;border:1px solid #cbbfae;background:#fffdf9;color:var(--ink);border-radius:0}
input:focus,select:focus,textarea:focus{outline:2px solid var(--red);outline-offset:0;border-color:var(--red)}
textarea{min-height:140px;resize:vertical}
.form-note{font-size:.9rem;color:var(--muted)}
.form-ok{display:none;background:var(--ink);color:#fff;padding:1.25rem 1.5rem}
.aside{background:var(--paper2);padding:2rem;align-self:start}
.aside h3{margin-bottom:1rem}
.aside div{margin-bottom:.6rem}
/* footer */
.site-footer{background:#0d0b0a;color:#a99f94;padding:4rem 0 2rem;font-size:.95rem}
.foot-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;padding-bottom:2.5rem;border-bottom:1px solid rgba(255,255,255,.1)}
.site-footer a{color:#e6ddd2}
.foot-meta div{margin-bottom:.4rem}
.foot-meta strong{color:#fff;font-family:var(--fd);text-transform:uppercase;letter-spacing:.1em;font-weight:500}
.site-footer .logo{color:#fff}
.foot-base{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;padding-top:1.5rem;font-size:.85rem}
.site-footer .ph{background:rgba(255,255,255,.08)}
/* calculator (dark) */
.section-black{background:#0d0b0a;color:#f1ebe2}
.section-black .lead{color:#b9afa4}
.section-black .cf-top label{color:#b9afa4}
.section-black .calc-field input[type=range]::-webkit-slider-runnable-track{background:rgba(255,255,255,.22)}
.section-black .calc-field input[type=range]::-moz-range-track{background:rgba(255,255,255,.22)}
.section-black .cr-label{color:#b9afa4}
.section-black .calc-result{border-top-color:var(--red)}
.section-black .cr-value{color:#fff}
.section-black .calc-result.big{background:linear-gradient(135deg,var(--red),var(--red-d));color:#fff}
.section-black .calc-result.big .cr-label{color:rgba(255,255,255,.85)}
.section-black .calc-result.big .cr-value{color:#fff}
.section-black .calc-note{color:#8d8478}
/* calculator */
.section-tight{padding:clamp(2.75rem,5vw,4.25rem) 0}
.section-tight .lead{margin-bottom:2rem}
.calc{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(1.5rem,4vw,3rem);align-items:center}
.calc-inputs{display:grid;gap:1.1rem}
.cf-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:.3rem}
.cf-top label{font-size:.85rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.cf-top output{font-family:var(--fd);font-size:1.7rem;color:var(--red);font-weight:600}
.calc-field input[type=range]{width:100%;height:30px;background:transparent;-webkit-appearance:none;appearance:none;cursor:pointer;margin:0}
.calc-field input[type=range]::-webkit-slider-runnable-track{height:9px;background:rgba(20,17,15,.18);border-radius:5px}
.calc-field input[type=range]::-moz-range-track{height:9px;background:rgba(20,17,15,.18);border-radius:5px}
.calc-field input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:28px;height:28px;border-radius:50%;background:var(--red);border:3px solid #fff;box-shadow:0 2px 8px rgba(0,0,0,.35);cursor:pointer;margin-top:-10px}
.calc-field input[type=range]::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:var(--red);border:3px solid #fff;cursor:pointer}
.calc-results{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.calc-result{border-top:2px solid var(--red);padding-top:.7rem}
.cr-label{display:block;font-size:.72rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.cr-value{display:block;font-family:var(--fd);font-size:1.9rem;line-height:1.1;margin-top:.1rem}
.calc-result.big{background:var(--ink);color:#fff;border-top:none;padding:1.4rem 1.6rem 1.9rem;grid-column:1/-1;text-align:center;animation:glow 2.4s ease-in-out infinite}
.cr-tabs{display:flex;justify-content:center;gap:.6rem;margin-bottom:1rem;flex-wrap:wrap}
.cr-tab{font-family:var(--fd);text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;font-weight:600;padding:.55rem 1.1rem;border:2px solid rgba(255,255,255,.4);background:transparent;color:#fff;cursor:pointer;transition:background .15s,color .15s}
.cr-tab.on{background:#fff;color:var(--red);border-color:#fff}
.cr-tab:not(.on):hover{border-color:#fff}
.calc-result.big .cr-value{font-size:clamp(3rem,7vw,4.8rem);letter-spacing:.01em;text-shadow:0 0 34px rgba(255,255,255,.35)}
.calc-result.big .cr-label{font-size:.85rem}
@keyframes glow{0%,100%{box-shadow:0 0 0 0 rgba(217,4,41,0)}50%{box-shadow:0 0 46px 8px rgba(217,4,41,.5)}}
@media (prefers-reduced-motion:reduce){.calc-result.big{animation:none}}
.calc-result.big .cr-label{color:#b9afa4}
.calc-result.big .cr-value{color:#fff}
.calc-note{margin-top:1.4rem;font-size:.85rem;color:var(--muted);max-width:70ch}
@media (max-width:900px){.calc{grid-template-columns:1fr}.calc-results{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.calc-results{grid-template-columns:1fr}}
@media (max-width:900px){
.trio,.steps,.strip .wrap{grid-template-columns:1fr 1fr}
.split,.belt,.contact-grid,.foot-in{grid-template-columns:1fr}
.belt img{aspect-ratio:3/2}
}
@media (max-width:640px){
.hero::before{background:linear-gradient(0deg,rgba(10,8,7,.82),rgba(10,8,7,.45) 70%),linear-gradient(90deg,rgba(10,8,7,.75),rgba(10,8,7,.6))}
.nav .nav-link{display:none}
.nav .nav-contact{display:inline-block}
.trio,.steps,.strip .wrap,.row{grid-template-columns:1fr}
.logo-txt small{display:none}
.hero{min-height:auto}
}

/* free resource */
.sr{position:absolute;left:-999px}
.guide{display:grid;grid-template-columns:.7fr 1.3fr;gap:clamp(2rem,6vw,5rem);align-items:center}
.guide-cover{aspect-ratio:3/4;max-width:300px;width:100%;margin:0 auto;background:linear-gradient(160deg,var(--red),var(--red-d));color:#fff;padding:1.8rem 1.5rem;display:flex;flex-direction:column;justify-content:space-between;box-shadow:14px 14px 0 rgba(255,255,255,.08),0 20px 40px rgba(0,0,0,.5);transform:rotate(-2deg)}
.gc-top{font-family:var(--fd);text-transform:uppercase;letter-spacing:.2em;font-size:.8rem}
.gc-title{font-family:var(--fd);text-transform:uppercase;font-size:clamp(1.7rem,3vw,2.3rem);line-height:1.05;font-weight:600}
.gc-brand{font-family:var(--fd);text-transform:uppercase;letter-spacing:.15em;font-size:.9rem;border-top:2px solid rgba(255,255,255,.6);padding-top:.7rem}
.guide-form{display:flex;gap:.75rem;flex-wrap:wrap}
.guide-form input{flex:1 1 240px;border:1px solid #4a423b;background:#1a1613;color:#fff}
.guide-ok{display:none;background:var(--red);color:#fff;padding:1rem 1.25rem}
.guide-note{margin-top:.9rem;color:#8d8478}
.section-black .ticks li{color:#c9bfb4}
.faq-wrap{display:grid;grid-template-columns:.8fr 1.4fr;gap:clamp(2rem,6vw,5rem);align-items:start}
.faq-wrap .lead{margin-bottom:0}
.faq-wrap .lead a{color:var(--red);font-weight:600}
.faq details{border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:1.15rem 2.5rem 1.15rem 0;font-family:var(--fd);text-transform:uppercase;letter-spacing:.02em;font-size:1.2rem;font-weight:500;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:.2rem;top:50%;transform:translateY(-50%);font-size:1.8rem;color:var(--red);line-height:1}
.faq details[open] summary::after{content:"\2212"}
.faq details p{padding:0 2.5rem 1.3rem 0;color:var(--muted)}
@media (max-width:900px){.guide,.faq-wrap{grid-template-columns:1fr}.guide-cover{max-width:240px}}
.logo-txt b,.nav .btn,.nav-contact{white-space:nowrap}
@media (max-width:640px){.nav{gap:.9rem}.nav .btn{padding:.6rem .9rem;font-size:.85rem}.logo-txt b{font-size:1.15rem}.nav-contact{font-size:.88rem}}

.guide-link{color:#fff;text-decoration:underline;font-weight:600}

.chart-card{margin-top:2rem;background:#fff;border:1px solid rgba(20,17,15,.1);border-radius:14px;padding:clamp(1rem,3vw,2rem);box-shadow:0 18px 40px -24px rgba(20,17,15,.35)}
.chart-legend{display:flex;gap:1.4rem;flex-wrap:wrap;margin-bottom:.8rem;font-size:.9rem;font-weight:600}
.chart-legend span{display:inline-flex;align-items:center;gap:.5rem}
.chart-legend i{display:inline-block;width:22px;height:4px;border-radius:2px}
.chart-box{position:relative;height:clamp(260px,40vw,380px)}
.chart-note{margin:.8rem 0 0;font-size:.8rem;color:#8d8478}
#results h2 .red{color:var(--red)}

.sols{gap:1.1rem}
.sol{display:block;background:#fff;border:1px solid rgba(20,17,15,.1);border-top:4px solid var(--red);border-radius:10px;padding:1.3rem 1.5rem;box-shadow:0 14px 30px -22px rgba(20,17,15,.35)}
.sol h3{margin-bottom:.35rem}
.sol>div>p{margin:0 0 .5rem}
.legal{max-width:72ch}
.legal h2{font-size:1.35rem;margin-top:2.4rem;margin-bottom:.6rem}
.legal p{color:var(--muted)}
.legal a{color:inherit;text-decoration:underline}
.foot-base a{color:inherit;text-decoration:underline}
.page-head .eyebrow-sub{margin-top:0}
.legal .ph{white-space:nowrap}