:root{--iv-ink:#0c2437;--iv-ink2:#16384d;--iv-rust:#a94728;--iv-rust2:#d36f43;--iv-sand:#f4eadc;--iv-paper:#fffdf9;--iv-mint:#dff2eb;--iv-blue:#4f8fbe;--iv-line:#d6d4cd;--iv-muted:#61717b;--iv-green:#58d46c;--iv-shell:min(1180px,calc(100% - 32px));--iv-shadow:0 22px 60px rgba(12,36,55,.11)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:86px}body{margin:0;background:var(--iv-paper);color:var(--iv-ink);font-family:"Segoe UI",Arial,sans-serif;line-height:1.58;overflow-x:hidden}button,input{font:inherit}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.04em;text-wrap:balance}.iv-shell{width:var(--iv-shell);margin-inline:auto}.skip-link{position:fixed;left:16px;top:-80px;z-index:9999;background:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{top:16px}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,253,249,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--iv-line)}.header-inner{min-height:72px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center}.main-nav{margin-left:auto;display:flex;gap:4px;font-weight:800;font-size:.9rem;color:#415563}.main-nav a{padding:10px 11px;border-radius:8px}.main-nav a:hover,.main-nav a[aria-current="page"]{background:#f0eee9;color:var(--iv-ink)}.header-action{min-height:42px;display:inline-flex;align-items:center;padding:9px 15px;background:var(--iv-ink);color:#fff;border-radius:10px;font-weight:900}.menu-toggle{display:none;width:42px;height:42px;margin-left:auto;border:1px solid var(--iv-line);background:#fff;border-radius:10px;align-items:center;justify-content:center;flex-direction:column;gap:5px}.menu-toggle span{width:18px;height:2px;background:var(--iv-ink)}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;padding-top:18px;color:#71808a;font-size:.84rem;font-weight:750}.iv-hero{position:relative;overflow:hidden;padding:28px 0 70px;background:linear-gradient(180deg,#fffdf9,#f7f0e8)}.iv-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(169,71,40,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(169,71,40,.055) 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(90deg,#000,rgba(0,0,0,.35) 54%,transparent 88%);pointer-events:none}.iv-hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(470px,540px);gap:78px;align-items:center;justify-content:space-between;margin-top:34px}.iv-hero-copy{min-width:0;position:relative;z-index:2}.iv-runway{max-width:540px;width:100%;justify-self:end}.iv-kicker,.iv-section-kicker{color:var(--iv-rust);font-size:.74rem;font-weight:950;letter-spacing:.12em;text-transform:uppercase}.iv-hero h1{max-width:10ch;font-size:clamp(3.2rem,6.4vw,6rem);line-height:.9;margin:12px 0 24px;font-weight:950}.iv-hero h1 em{font-style:normal;color:var(--iv-rust)}.iv-lead{max-width:650px;color:var(--iv-muted);font-size:1.08rem;line-height:1.76}.iv-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}.iv-btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;border:1px solid #c7c5bd;background:#fff;padding:11px 17px;border-radius:10px;font-weight:900;color:var(--iv-ink)}.iv-btn-primary{background:var(--iv-rust);border-color:var(--iv-rust);color:#fff}.iv-trust{display:flex;gap:9px 18px;flex-wrap:wrap;margin-top:22px;color:#576975;font-size:.79rem;font-weight:800}.iv-trust span:before{content:"✓";color:var(--iv-rust);margin-right:7px;font-weight:950}
.iv-runway{position:relative;overflow:hidden;border:1px solid #183c50;border-radius:24px;background:var(--iv-ink);color:#fff;padding:22px;box-shadow:var(--iv-shadow)}.iv-runway:after{content:"12";position:absolute;right:-12px;bottom:-44px;font-size:13rem;line-height:1;font-weight:950;color:rgba(255,255,255,.035)}.iv-runway-head{position:relative;z-index:2;display:flex;justify-content:space-between;gap:18px;align-items:end}.iv-runway-head span{color:#9eb3bf;font-size:.69rem;font-weight:900;text-transform:uppercase;letter-spacing:.1em}.iv-runway-head strong{max-width:240px;text-align:right;font-size:1.05rem;line-height:1.25}.iv-runway-head b{color:#ffd5bf}.iv-months{position:relative;z-index:2;display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-top:22px}.iv-month{aspect-ratio:1.2;border:1px solid rgba(255,255,255,.15);border-radius:10px;display:grid;place-items:center;background:rgba(255,255,255,.035);color:#8096a3;font-size:.68rem;font-weight:950}.iv-month.is-active{background:linear-gradient(145deg,#bc5432,#e18156);color:#fff;border-color:#e28b68}.iv-runway-result{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:10px;margin-top:18px}.iv-runway-result>div{padding:15px;border:1px solid rgba(255,255,255,.12);border-radius:12px;background:rgba(255,255,255,.04)}.iv-runway-result span{display:block;color:#9cb1bd;font-size:.67rem;font-weight:900;text-transform:uppercase;letter-spacing:.07em}.iv-runway-result strong{display:block;margin-top:6px;font-size:1.55rem;line-height:1}.iv-runway p{position:relative;z-index:2;margin:14px 0 0;color:#aebec7;font-size:.78rem}.iv-rail{background:#fff;border-block:1px solid var(--iv-line)}.iv-rail-grid{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;align-items:stretch}.iv-rail-grid>div{padding:18px 16px;min-height:96px}.iv-rail-grid span{display:block;color:var(--iv-rust);font-size:.68rem;font-weight:950}.iv-rail-grid strong{display:block;margin-top:6px;line-height:1.25}.iv-rail-grid i{display:grid;place-items:center;color:#a1a6a5;font-size:1.2rem;font-style:normal}.iv-rail-grid .is-result{background:var(--iv-mint)}
.iv-work{padding:82px 0}.iv-work-head,.iv-section-head{display:grid;grid-template-columns:minmax(0,690px) minmax(260px,1fr);gap:40px;align-items:end;margin-bottom:34px}.iv-work-head h2,.iv-section-head h2{font-size:clamp(2.2rem,4.7vw,4.2rem);line-height:.98;margin:8px 0 0}.iv-work-head p:last-child,.iv-section-head>p{color:var(--iv-muted);line-height:1.75}.iv-calc-brand{border-radius:26px;background:#f4f1eb;padding:16px}.iv-calc-brand .rv-calculator-category{margin-bottom:12px}.iv-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(360px,.85fr);gap:16px;align-items:start}.iv-form,.iv-result{border:1px solid #d4d0c6;border-radius:18px;background:#fff}.iv-form{padding:24px}.iv-step{padding:0 0 24px}.iv-step+.iv-step{padding-top:24px;border-top:1px solid #e1ded6}.iv-step-head{display:grid;grid-template-columns:40px minmax(0,1fr);gap:14px;margin-bottom:18px}.iv-step-head>span{width:40px;height:40px;border-radius:12px;background:var(--iv-rust);color:#fff;display:grid;place-items:center;font-weight:950}.iv-step-head h3{font-size:1.32rem;margin:1px 0 5px}.iv-step-head p{margin:0;color:var(--iv-muted);font-size:.88rem}.iv-fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}.iv-field{display:grid;gap:7px}.iv-field-wide{grid-column:1/-1}.iv-field>span:first-child{font-weight:900}.iv-field small{color:var(--iv-muted);font-size:.79rem;line-height:1.5}.iv-input{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;border:1px solid #cfd4d1;border-radius:12px;overflow:hidden;background:#fff}.iv-input input{width:100%;min-width:0;height:52px;border:0;outline:0;padding:0 13px;font-weight:900;color:var(--iv-ink);background:transparent}.iv-input:focus-within{border-color:var(--iv-rust);box-shadow:0 0 0 3px rgba(169,71,40,.12)}.iv-input em{padding:0 12px;color:#61717b;font-size:.78rem;font-style:normal;font-weight:850}.iv-month-picker{display:grid;grid-template-columns:repeat(12,1fr);gap:5px;margin-top:14px}.iv-month-picker span{height:36px;border-radius:8px;display:grid;place-items:center;border:1px solid #d6d6d0;color:#7d8588;font-size:.68rem;font-weight:900}.iv-month-picker span.is-active{background:var(--iv-rust);border-color:var(--iv-rust);color:#fff}.iv-advanced{margin-top:4px;border:1px solid #d6d3ca;border-radius:14px;background:#fbfaf7}.iv-advanced summary{padding:15px 16px;cursor:pointer;font-weight:900}.iv-advanced-body{padding:4px 16px 16px}.iv-actions-row{display:flex;gap:14px;align-items:center;margin-top:22px}.iv-reset{border:0;background:transparent;color:#566875;font-weight:850;text-decoration:underline;text-underline-offset:3px}.iv-note{margin:18px 0 0;padding:13px 14px;border-left:4px solid var(--iv-blue);background:#eef6fb;color:#526774;font-size:.79rem}.iv-result{padding:22px;background:var(--iv-ink);border-color:var(--iv-ink);color:#fff}.iv-result-kicker{color:#f0a281;font-size:.71rem;font-weight:950;letter-spacing:.1em;text-transform:uppercase}.iv-primary{padding:12px 0 20px;border-bottom:1px solid rgba(255,255,255,.13)}.iv-primary span{display:block;color:#a6b9c3;font-size:.74rem;font-weight:850}.iv-primary output{display:block;margin-top:8px;color:#fff;font-size:clamp(2.7rem,5vw,4.8rem);line-height:.92;font-weight:950;letter-spacing:-.06em}.iv-primary p{margin:12px 0 0;color:#b1c0c8;font-size:.86rem}.iv-metrics{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:14px}.iv-metrics article{padding:13px;border:1px solid rgba(255,255,255,.12);border-radius:11px;background:rgba(255,255,255,.035)}.iv-metrics span{display:block;color:#91a7b3;font-size:.66rem;font-weight:900;text-transform:uppercase;letter-spacing:.05em}.iv-metrics strong{display:block;margin-top:5px;color:#fff;font-size:1.02rem}.iv-interpret{margin-top:14px;padding:15px;border-radius:13px;background:#fff;color:var(--iv-ink)}.iv-interpret>span{color:var(--iv-rust);font-size:.68rem;font-weight:950;text-transform:uppercase}.iv-interpret h3{margin:5px 0 7px;font-size:1.15rem}.iv-interpret p{margin:0;color:#536670;font-size:.8rem}.iv-invoice-count{margin-top:12px;padding:13px;border:1px dashed rgba(255,255,255,.22);border-radius:12px}.iv-invoice-count span{display:block;color:#9eb1bb;font-size:.68rem}.iv-invoice-count strong{display:block;margin-top:5px;font-size:1.2rem}.iv-invoice-count p{margin:5px 0 0;color:#8ea4af;font-size:.72rem}
.iv-section{padding:86px 0}.iv-runway-section{background:var(--iv-sand)}.iv-sensitivity{display:grid;grid-template-columns:.78fr 1.22fr;gap:38px;align-items:start}.iv-sensitivity-copy{padding:24px;border-left:5px solid var(--iv-rust);background:rgba(255,255,255,.55)}.iv-sensitivity-copy h3{font-size:1.4rem;margin:0 0 8px}.iv-sensitivity-copy p{margin:0;color:#5d6a70}.iv-month-scale{display:grid;gap:9px}.iv-sens-row{display:grid;grid-template-columns:60px minmax(0,1fr) 120px;gap:12px;align-items:center}.iv-sens-row>span{font-weight:950}.iv-sens-track{height:13px;border-radius:999px;background:rgba(12,36,55,.12);overflow:hidden}.iv-sens-track i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--iv-rust),#efab80)}.iv-sens-row strong{text-align:right;font-size:1rem}.iv-sens-row.is-current{padding:10px;border:1px solid rgba(169,71,40,.3);border-radius:12px;background:#fff}.iv-map{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.iv-map article{padding:22px;border-top:4px solid var(--iv-rust);background:#f8f6f1;border-radius:0 0 16px 16px}.iv-map span{color:var(--iv-rust);font-size:.68rem;font-weight:950}.iv-map h3{font-size:1.25rem;margin:10px 0 8px}.iv-map p{color:#607079;font-size:.86rem}.iv-map a{display:inline-block;margin-top:10px;color:#315d7c;font-weight:900}.iv-method{background:var(--iv-ink);color:#fff}.iv-method h2,.iv-method h3{color:#fff}.iv-method .iv-section-head>p{color:#aebfc8}.iv-method-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.iv-formula,.iv-source-note{padding:23px;border:1px solid rgba(255,255,255,.13);border-radius:16px;background:rgba(255,255,255,.04)}.iv-formula code{display:block;margin-top:12px;padding:13px;border-radius:10px;background:#081b2a;color:#ffe0d1;font-family:ui-monospace,Consolas,monospace;font-size:.78rem;white-space:normal}.iv-formula p,.iv-source-note p{color:#aec0ca}.iv-source-links{display:grid;gap:7px;margin-top:16px}.iv-source-links a{color:#ffd0bc;font-weight:850;font-size:.82rem}.iv-boundary{display:grid;grid-template-columns:180px minmax(0,1fr);gap:28px;margin-top:16px;padding:18px 22px;border-radius:14px;background:#fff;color:var(--iv-ink)}.iv-boundary p{margin:0;color:#55666f}.iv-faq details{border-top:1px solid var(--iv-line);padding:18px 2px}.iv-faq details:last-child{border-bottom:1px solid var(--iv-line)}.iv-faq summary{cursor:pointer;font-weight:900}.iv-faq details p{margin:10px 0 0;color:var(--iv-muted);max-width:850px}
.rv-brand-footer{background:#0a1f31;color:#fff;border-top:4px solid transparent;border-image:linear-gradient(90deg,#4f8fbe 0 58%,#58d46c 58%) 1}.iv-site-footer{padding:56px 0 26px}.iv-footer-grid{display:grid;grid-template-columns:minmax(300px,1.55fr) repeat(3,minmax(160px,1fr));gap:38px 32px;align-items:start}.iv-footer-grid>div{min-width:0}.iv-footer-brand .rv-logo-image{display:block}.iv-footer-brand p{max-width:430px;margin:18px 0 14px;color:#9eb5c2;font-size:.9rem;line-height:1.7}.iv-footer-mail{display:inline-flex;color:#fff;font-size:.86rem;font-weight:850}.iv-socials{display:flex;gap:10px;margin-top:18px}.iv-socials a{width:44px;height:44px;border:1px solid rgba(255,255,255,.18);border-radius:12px;display:grid;place-items:center;background:rgba(255,255,255,.04)}.iv-socials svg{width:20px;height:20px;fill:#fff}.iv-footer-grid h3{margin:0 0 14px;color:#fff;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}.iv-footer-grid>div>a:not(.rv-logo):not(.iv-footer-mail){display:block;padding:6px 0;color:#bfd0d9;font-size:.84rem;line-height:1.45}.iv-footer-grid>div>a:not(.rv-logo):not(.iv-footer-mail):hover{color:#fff}.iv-disclaimer{max-width:980px;margin:28px 0 0;color:#9fb4c1;font-size:.73rem;line-height:1.65}.iv-footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:22px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#8fa8b8;font-size:.76rem;line-height:1.5}
@media(max-width:980px){.main-nav,.header-action{display:none}.menu-toggle{display:flex}.main-nav.is-open{position:absolute;left:16px;right:16px;top:70px;display:grid;background:#fff;border:1px solid var(--iv-line);border-radius:12px;padding:8px;box-shadow:var(--iv-shadow)}.iv-hero-grid,.iv-layout,.iv-work-head,.iv-section-head,.iv-sensitivity,.iv-method-grid{grid-template-columns:1fr}.iv-hero-grid{gap:38px}.iv-runway{justify-self:stretch;max-width:none}.iv-work-head,.iv-section-head{gap:12px}.iv-layout{gap:14px}.iv-result{position:static}.iv-map{grid-template-columns:1fr}.iv-rail-grid{grid-template-columns:1fr 1fr}.iv-rail-grid i{display:none}.iv-rail-grid>div{border-bottom:1px solid var(--iv-line)}.iv-boundary{grid-template-columns:1fr;gap:6px}.iv-footer-grid{grid-template-columns:1fr 1fr}.iv-footer-brand{grid-column:1/-1}}
@media(max-width:680px){.iv-shell{width:min(100% - 24px,1180px)}.iv-hero{padding-bottom:52px}.iv-hero h1{font-size:clamp(3rem,16vw,4.7rem);max-width:11ch}.iv-hero-grid{margin-top:22px;gap:28px}.iv-runway{padding:17px}.iv-months{grid-template-columns:repeat(4,1fr)}.iv-runway-result{grid-template-columns:1fr}.iv-rail-grid{grid-template-columns:1fr}.iv-work,.iv-section{padding:58px 0}.iv-calc-brand{padding:10px;border-radius:19px}.iv-form,.iv-result{padding:17px}.iv-fields,.iv-metrics{grid-template-columns:1fr}.iv-field-wide{grid-column:auto}.iv-month-picker{grid-template-columns:repeat(6,1fr)}.iv-actions-row{align-items:flex-start;flex-direction:column}.iv-sens-row{grid-template-columns:50px minmax(0,1fr) 95px;gap:8px}.iv-footer-grid{grid-template-columns:1fr}.iv-footer-brand{grid-column:auto}}
@media(max-width:390px){.iv-hero h1{font-size:2.8rem}.iv-runway-head{align-items:start;flex-direction:column}.iv-runway-head strong{text-align:left}.iv-primary output{font-size:2.55rem}.iv-socials a{width:44px;height:44px}.iv-footer-grid{grid-template-columns:1fr}.iv-footer-bottom{display:block}.iv-footer-bottom span+span{display:block;margin-top:8px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* RV V-next contrast hardening — 2026-08-20 */
.iv-month-picker span:not(.is-active){color:#666d70}
.iv-runway-section .iv-section-head>p{color:#52636e}
.iv-method .iv-section-kicker{color:#f0a281}