@font-face{font-family:Manrope;src:url('../assets/fonts/manrope-400.woff') format('woff');font-weight:400;font-display:swap}
@font-face{font-family:Manrope;src:url('../assets/fonts/manrope-500.woff') format('woff');font-weight:500;font-display:swap}
@font-face{font-family:Manrope;src:url('../assets/fonts/manrope-600.woff') format('woff');font-weight:600;font-display:swap}
@font-face{font-family:Manrope;src:url('../assets/fonts/manrope-700.woff') format('woff');font-weight:700;font-display:swap}
:root{--navy:#063e2f;--ink:#18352e;--green:#087d52;--app-green:#099b65;--orange:#ffd087;--blue:#0759c7;--muted:#52675f;--wash:#f6f8fa;--mint:#e7f4ed;--line:#d8e5dc;--white:#fff;--radius:20px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:112px}
body{margin:0;background:var(--wash);color:var(--ink);font:400 16px/1.75 Manrope,Arial,sans-serif;-webkit-font-smoothing:antialiased}
h1,h2,h3,p,figure{margin:0}
h1,h2,h3{color:var(--navy);font-weight:700;line-height:1.16;letter-spacing:-.045em;text-wrap:balance}
p{color:var(--muted)}
a{color:var(--green);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
button,input{max-width:100%;font:inherit}
button,summary,a{cursor:pointer;-webkit-tap-highlight-color:transparent}
button{color:inherit}
[hidden]{display:none!important}
:focus-visible{outline:3px solid var(--blue);outline-offset:4px}
::selection{background:#ccebdc;color:var(--navy)}
.container{width:min(1240px,calc(100% - 64px));margin-inline:auto}
.icon{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}
.svg-definitions{position:absolute;width:0;height:0;overflow:hidden}
.eyebrow{display:block;color:var(--green);font-size:11px;line-height:1.5;letter-spacing:.13em;font-weight:700}
.section{padding-block:86px}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:40px;margin-bottom:38px}
.section-heading h2{font-size:clamp(32px,3.6vw,46px);margin-top:14px;max-width:700px}
.section-heading>p{max-width:350px;font-size:14px}
.text-link{display:inline-flex;align-items:center;gap:12px;font-size:14px;font-weight:700;margin-top:24px}
.text-link .icon{width:18px;height:18px}
.button{position:relative;display:inline-flex;align-items:center;justify-content:space-between;gap:25px;min-height:52px;padding:14px 21px;border:1px solid transparent;border-radius:12px;background:var(--green);color:#fff;font-size:13px;font-weight:700;line-height:1.5;text-decoration:none;overflow:hidden;transition:background-color .2s,box-shadow .2s}
.button:hover{background:#06613f;color:#fff;text-decoration:none;box-shadow:0 6px 18px #087d5220}
.button .icon{width:20px;height:20px;transition:transform .2s}
.button:hover .icon{transform:translateX(3px)}
.button.secondary{background:#fff;border-color:var(--line);color:var(--navy)}
.button.secondary:hover{background:var(--mint);box-shadow:none}
.button-accent{background:var(--orange);color:var(--navy)}
.button-accent:hover{background:#ffc368;color:var(--navy)}
.button-accent:after{content:'';position:absolute;inset:0;background:linear-gradient(110deg,transparent 35%,#ffffff65 49%,transparent 64%);transform:translateX(-150%);animation:sheen 6s ease-in-out infinite;pointer-events:none}
.skip-link{position:fixed;top:-100px;left:18px;z-index:200;padding:12px 18px;background:var(--navy);color:#fff}
.skip-link:focus{top:12px}

/* Navigation and mobile menu. */
.site-header{position:sticky;top:0;z-index:80;padding-block:12px;background:#f6f8faed;backdrop-filter:blur(12px)}
.header-inner{display:flex;align-items:center;gap:30px;min-height:80px;padding:10px 23px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 6px 18px #063e2f05}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;color:var(--navy);text-decoration:none}
.brand:hover{text-decoration:none}
.brand img{display:block;width:54px;height:54px;object-fit:contain;border-radius:12px;background:#fff}
.brand>span{font-size:23px;line-height:1.15;font-weight:700;letter-spacing:-.05em}
.brand small{display:block;margin-top:6px;color:var(--muted);font-size:8px;letter-spacing:.13em;font-weight:600}
.desktop-nav{display:flex;gap:25px;margin-left:auto;align-items:center}
.desktop-nav a{font-size:12px;color:var(--muted);font-weight:600;white-space:nowrap}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.header-actions .button{min-height:45px;padding:11px 17px;font-size:12px}
.menu-button{display:none;align-items:center;justify-content:center;width:45px;height:45px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px}
.mobile-nav{margin-top:8px;padding:12px 20px 20px;background:#fff;border:1px solid var(--line);border-radius:16px;max-height:calc(100svh - 110px);overflow:auto}
.mobile-nav a{display:block;padding:12px 2px;border-bottom:1px solid var(--line);font-size:14px;color:var(--navy)}

/* Come Pay introduction and invitation. */
.hero{padding-block:18px 38px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:stretch}
.hero-story{position:relative;isolation:isolate;overflow:hidden;min-height:490px;padding:44px 36px 44px 12px;border-radius:28px;background:transparent;animation:story-in .5s ease both}
.hero-story:before{content:'';position:absolute;z-index:-1;right:-180px;bottom:-240px;width:520px;height:520px;border:70px solid #e0f2e9;border-radius:50%;transform:rotate(-20deg);opacity:.8}
.hero-story:after{content:'';position:absolute;z-index:-1;right:-38px;top:-50px;width:150px;height:150px;border:32px solid #ffe3bd;border-radius:50%;opacity:.7}
.hero-story .eyebrow{color:var(--green)}
.hero-story h1{font-size:clamp(48px,5.1vw,69px);color:var(--navy);max-width:600px;margin-top:25px;letter-spacing:-.06em;line-height:1.06}
.hero-story h1 span{color:var(--green);text-decoration:underline;text-decoration-color:#ffd087;text-decoration-thickness:5px;text-underline-offset:8px}
.hero-story>p{margin-top:24px;color:var(--muted);font-size:16px;max-width:440px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}
.hero-tags span,.hero-tags a{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:6px 11px;border:1px solid var(--line);border-radius:7px;color:var(--green);background:#ffffffc0;font-size:10px}
.hero-tags .icon{width:14px;height:14px}
.hero-note{margin-top:36px;padding-top:22px;border-top:1px solid var(--line);display:flex;gap:14px;align-items:center;color:var(--muted);font-size:10px;line-height:1.7}
.hero-note>span{flex:none;width:8px;height:8px;border-radius:50%;background:var(--orange)}
.access-card{padding:30px;border-radius:20px;background:#fff;border:1px solid #caddd3;border-top:5px solid var(--app-green);box-shadow:0 12px 30px #063e2f0b}
.access-card h2{font-size:28px;margin-top:14px}
.access-card>p{font-size:13px;margin-top:13px}
.access-buttons{display:grid;gap:10px;margin-top:22px}
.access-caption{margin-top:16px!important;font-size:11px!important;line-height:1.8}
.invite-box{margin-top:23px;padding:17px 18px 13px;border:1px dashed #a4c5b3;border-radius:13px;background:#f1f8f4}
.invite-label{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:9px;font-weight:700;letter-spacing:.1em;color:var(--muted)}
.invite-label>a{display:flex;align-items:center;gap:4px;font-size:10px;letter-spacing:0;font-weight:500}
.invite-label .icon{width:12px;height:12px}
.invite-controls{display:flex;align-items:center;gap:12px;margin-top:11px}
.invite-controls>input{width:100%;min-width:0;background:transparent;border:0;color:var(--navy);padding:0;font:700 29px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.04em}
.invite-controls>button{display:flex;align-items:center;justify-content:center;gap:6px;flex:none;min-height:43px;padding:10px;border:1px solid #d4e5d9;background:#fff;border-radius:8px;font-size:10px;color:var(--green);font-weight:700}
.invite-controls .icon{width:15px;height:15px}
.invite-status{font-size:10px;line-height:1.6;min-height:17px;margin-top:7px}
.reference-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:20px}
.reference-fact{display:flex;gap:17px;align-items:center;padding:23px 26px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--app-green);border-radius:13px}
.reference-fact strong{color:var(--navy);font-size:34px;line-height:1.15;font-weight:700;letter-spacing:-.05em;white-space:nowrap}
.reference-fact strong small{font-size:16px}
.reference-fact p{font-size:11px;line-height:1.7}
.reference-fact p span{display:block;font-size:9px;letter-spacing:.08em;color:var(--green);font-weight:700}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding-bottom:10px}
.quick-grid>a{display:flex;align-items:start;gap:12px;padding:23px 20px;background:#fff;border:1px solid var(--line);border-radius:15px;color:var(--navy);text-decoration:none;transition:border-color .2s,transform .2s}
.quick-grid>a:hover{border-color:#89bba3;transform:translateY(-2px)}
.quick-grid>a>span{color:var(--blue);font:600 11px/1.8 ui-monospace,monospace}
.quick-grid strong{display:block;font-size:13px;line-height:1.5}
.quick-grid small{display:block;font-size:10px;color:var(--muted);line-height:1.6;margin-top:4px}
.quick-grid .icon{width:17px;height:17px;margin-left:auto;flex:none}

/* Supplied screen explorer, with no-JavaScript content fallback. */
.screen-explorer{background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden}
.screen-tabs{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-bottom:1px solid var(--line)}
.screen-tabs button{display:flex;align-items:center;justify-content:center;gap:10px;min-height:66px;padding:18px;border:0;border-bottom:4px solid transparent;background:#fff;color:var(--muted);font-weight:700;font-size:13px}
.screen-tabs button span{font:500 10px ui-monospace,monospace;opacity:.7}
.screen-tabs button[aria-selected=true]{color:var(--green);border-bottom-color:var(--app-green);background:var(--mint)}
.screen-panel{display:grid;grid-template-columns:1fr 1fr;align-items:stretch}
.screen-panel+.screen-panel{border-top:1px solid var(--line)}
.screen-panel-copy{padding:55px 48px;align-self:center}
.screen-panel-copy h3{font-size:40px;line-height:1.17;max-width:400px;margin-top:19px}
.screen-panel-copy p{font-size:15px;max-width:420px;margin-top:23px}
.screen-stage{display:grid;place-items:center;background:var(--mint);padding:32px 32px 22px}
.screen-stage .app-screen{width:238px;border:8px solid var(--navy);border-radius:27px;overflow:hidden;box-shadow:0 12px 30px #0b294120}
.app-screen{display:block;line-height:0}
.app-screen img{display:block;width:100%;height:auto}
.screen-stage>span{font-size:9px;letter-spacing:.04em;color:var(--muted);margin-top:18px}
.essentials-section{padding-top:25px}
.essentials-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.essential-card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;color:var(--ink);text-decoration:none;transition:box-shadow .2s}
.essential-card:hover{box-shadow:0 12px 25px #0b29410b;text-decoration:none}
.essential-image{aspect-ratio:2/1;overflow:hidden;background:#e9f1ec}
.essential-image img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .35s}
.essential-card:hover .essential-image img{transform:scale(1.025)}
.essential-copy{padding:27px 30px 30px}
.essential-copy>span:first-child{font-size:10px;color:var(--blue);font-weight:700;letter-spacing:.1em}
.essential-copy h3{font-size:27px;margin-top:12px}
.essential-copy p{font-size:14px;margin-top:14px}
.card-link{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:24px;color:var(--green);font-size:12px;font-weight:700}
.illustration-note{font-size:10px;color:var(--muted);margin-top:15px}

/* The complete text remains in an accessible, searchable topic library. */
.guide-section{background:#fff;border-block:1px solid var(--line)}
.guide-layout{display:grid;grid-template-columns:255px minmax(0,1fr);gap:55px;align-items:start}
.guide-sidebar{position:sticky;top:116px;background:var(--wash);border:1px solid var(--line);border-radius:18px;padding:20px}
.topic-search{display:flex;align-items:center;gap:7px;padding:12px 10px;background:#fff;border:1px solid var(--line);border-radius:8px;margin-top:15px}
.topic-search .icon{width:16px;height:16px;color:var(--muted)}
.topic-search input{width:100%;min-width:0;padding:0;border:0;background:transparent;font-size:12px;color:var(--ink)}
.guide-sidebar nav{display:grid;max-height:calc(100svh - 310px);overflow:auto;scrollbar-width:thin;margin-top:15px}
.guide-sidebar nav>a{display:flex;align-items:start;gap:10px;padding:10px 8px;border-radius:6px;color:var(--muted);font-size:11px;line-height:1.7;text-decoration:none}
.guide-sidebar nav>a>span{font:500 10px/1.9 ui-monospace,monospace;color:#71887a}
.guide-sidebar nav>a:hover,.guide-sidebar nav>a.is-current{background:#dceee3;color:var(--green)}
.sidebar-help{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);margin-top:17px;padding-top:15px;font-size:11px;font-weight:700}
.sidebar-help .icon{width:16px;height:16px}
.no-topics{font-size:12px;margin-top:15px}
.chapter{padding:36px 0;border-bottom:1px solid var(--line);scroll-margin-top:12px}
.chapter:first-of-type{padding-top:0}
.chapter-number{display:inline-block;font:500 10px/1.5 ui-monospace,monospace;letter-spacing:.06em;color:var(--blue);padding:6px 9px;border-radius:6px;background:#eff4fa}
.chapter h2{font-size:29px;margin-top:16px;line-height:1.25}
.chapter p,.chapter li{font-size:14px;line-height:1.95;color:var(--muted)}
.chapter p{margin-top:17px}
.chapter ul,.chapter ol{padding-left:20px;margin-block:18px 0}
.chapter li+li{margin-top:8px}
.chapter strong{color:var(--ink)}
.chapter-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:23px}
.chapter-actions .button{min-height:44px;padding:11px 15px;font-size:11px}
.topic-picker{display:none}

/* Reference calculators deliberately keep USDT and Payment examples separate. */
.calculator-section{background:#e7f0e9}
.calculator-pair,.calculator-page{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.calculator{background:#fff;border:1px solid #cddfd2;border-radius:21px;padding:29px}
.calculator-field{margin-top:22px}
.calculator-field label{display:block;font-size:12px;font-weight:700;color:var(--navy);margin-bottom:10px}
.calculator-field input{width:100%;min-width:0;min-height:53px;padding:12px 14px;border:1px solid #b8cfc0;border-radius:10px;background:#fff;color:var(--navy);font-size:20px;font-weight:600}
.amount-input{display:flex;align-items:center;gap:12px}
.amount-input input{min-width:0}
.amount-input>span{font-size:11px;color:var(--muted);font-weight:700}
.amount-presets{display:flex;gap:8px;margin-top:12px}
.amount-presets button{flex:1;min-height:41px;padding:8px;background:#f0f7f3;border:1px solid #dce8df;border-radius:7px;color:var(--green);font-size:11px}
.amount-presets button[aria-pressed=true]{background:var(--green);color:#fff;border-color:var(--green)}
.field-error{min-height:20px;font-size:11px;line-height:1.6;margin-top:12px;color:#a03920}
.calculator-output{padding:22px 21px;border-radius:13px;background:var(--navy);margin-top:14px;color:#fff}
.calculator-output>span{display:block;font-size:11px;color:#c9e0d5}
.calculator-output output{display:block;margin-top:8px;font-size:clamp(31px,3.3vw,43px);font-weight:700;line-height:1.2;letter-spacing:-.06em;overflow-wrap:anywhere}
.calculator-output small{display:block;font-size:8px;letter-spacing:.08em;margin-top:10px;color:#d4e4dc}
.calculator-note{font-size:10px;line-height:1.8;margin-top:17px;color:var(--muted)}
.estimate-breakdown{margin-top:18px}
.estimate-breakdown p{display:flex;align-items:baseline;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding:10px 0;font-size:12px}
.estimate-breakdown output{color:var(--navy);font-weight:700;white-space:nowrap}
.special-option{display:flex;align-items:center;gap:10px;min-height:44px;margin-top:17px;font-size:11px;line-height:1.6;color:var(--ink)}
.special-option input{width:20px;height:20px;flex:none;accent-color:var(--green)}
.calculator-intro{font-size:14px;max-width:790px;margin-bottom:28px}

/* Answers, onward links and a contrasting reference footer. */
.faq-section{background:#fff}
.faq-list{column-count:2;column-gap:20px}
.faq-list details{break-inside:avoid;display:inline-block;width:100%;margin-bottom:12px;border:1px solid var(--line);background:#fff;border-radius:12px;padding-inline:19px}
.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:18px;list-style:none;min-height:70px;padding-block:19px;font-size:13px;font-weight:700;color:var(--navy);line-height:1.6}
.faq-list summary::-webkit-details-marker,.topic-picker summary::-webkit-details-marker{display:none}
.faq-list summary .icon{width:17px;height:17px;color:var(--green);transition:transform .2s}
.faq-list details[open]{border-color:#91bda2;background:#fbfefc}
.faq-list details[open] summary .icon{transform:rotate(45deg)}
.faq-answer{padding-bottom:22px;animation:answer-in .16s ease}
.faq-answer p{font-size:13px;line-height:1.9}
.related-section{padding-block:35px;border-top:1px solid var(--line)}
.related-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.related-inner h2{font-size:25px}
.related-inner p{font-size:12px;margin-top:8px}
.related-links{display:flex;gap:12px}
.related-links a{display:flex;align-items:center;gap:12px;padding:12px 19px;background:#fff;border:1px solid var(--line);border-radius:12px;color:var(--navy);font-size:13px;font-weight:700}
.related-links img{width:36px;height:36px;object-fit:contain}
.related-links .icon{width:16px;height:16px}
.closing{background:#dcefe2;padding-block:50px;border-top:1px solid #c9dfce}
.closing-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}
.closing h2{font-size:34px;margin-top:12px}
.closing p{font-size:13px;margin-top:13px;max-width:680px}
.site-footer{background:var(--navy);color:#d6e2e9;padding-block:62px 105px}
.site-footer .brand{color:#fff}
.site-footer .brand small{color:#bacdd6}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:70px;padding-bottom:44px}
.footer-top>div>p{max-width:300px;font-size:12px;color:#becfd7;margin-top:19px}
.footer-domain{display:block;margin-top:16px;font-size:11px;color:var(--orange)}
.footer-top h2{font-size:10px;letter-spacing:.1em;color:#b8d2db;margin-block:10px 20px}
.footer-top nav{display:grid;gap:9px}
.footer-top nav a{color:#e4edf2;font-size:12px}
.footer-top nav .icon{width:13px;height:13px;vertical-align:middle}
.official-resources{border-block:1px solid #ffffff23;padding-block:34px}
.resources-intro .eyebrow{color:#9edac0}
.resources-intro h2{color:#fff;font-size:28px;margin-top:12px}
.resources-intro p{color:#c0d0d9;font-size:12px;max-width:650px;margin-top:12px}
.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:25px}
.resource-grid>a{display:block;padding:16px 18px;border:1px solid #ffffff1b;border-radius:11px;background:#ffffff06;text-decoration:none}
.resource-grid>a>span{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11px;font-weight:700;color:#e1f1e8}
.resource-grid>a .icon{width:14px;height:14px;color:var(--orange)}
.resource-grid>a>small{display:block;margin-top:8px;color:#bfced8;font-size:10px;line-height:1.7}
.resource-grid>a:hover{background:#ffffff10}
.resources-note{color:#aebfc9;font-size:10px;line-height:1.9;margin-top:22px;max-width:1000px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:10px;color:#c6d5dd;margin-top:27px}
.footer-bottom nav{display:flex;align-items:center;flex-wrap:wrap;gap:24px}
.footer-bottom a{color:#d2e0e7}
.footer-bottom button{display:flex;align-items:center;gap:6px;padding:9px 0;border:0;background:transparent;color:#d2e0e7;font-size:10px}
.footer-bottom button .icon{width:13px;height:13px}
.robot-help{position:fixed;right:max(15px,env(safe-area-inset-right));bottom:calc(14px + env(safe-area-inset-bottom));z-index:60;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100px;min-height:89px;gap:2px;text-decoration:none;filter:drop-shadow(0 5px 6px #087d5220);transition:transform .2s}
.robot-help>img{display:block;width:86px;height:66px;object-fit:contain;animation:robot-bob 5s ease-in-out infinite}
.robot-help>span{display:block;background:#fff;color:#086743;border:1px solid #b9d8c3;border-radius:30px;padding:4px 9px;font-size:9px;font-weight:700;line-height:1.5;white-space:nowrap}
.robot-help:hover{transform:translateY(-3px);text-decoration:none}
.robot-help:focus-visible{border-radius:15px}

/* Guide pages. */
.page-hero{padding-block:35px 55px}
.breadcrumbs{display:flex;align-items:center;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:11px;margin-bottom:32px}
.breadcrumbs>span:last-child{overflow-wrap:anywhere}
.page-hero h1{font-size:clamp(40px,4.5vw,62px);margin-top:17px;max-width:900px}
.page-hero p{font-size:15px;max-width:780px;margin-top:23px}
.page-content{padding-block:0 80px}
.document-body{background:#fff;border:1px solid var(--line);border-radius:23px;padding:42px;max-width:1160px}
.document-body>p,.document-body>ul,.document-body>ol{font-size:15px;line-height:1.95;max-width:880px}
.document-body p+p{margin-top:18px}
.document-body>h2{font-size:28px;margin-block:36px 16px}
.document-body>h2:first-child{margin-top:0}
.document-body ul,.document-body ol{padding-left:22px;color:var(--muted)}
.document-body li+li{margin-top:9px}
.document-body .invite-box{max-width:520px;margin-block:22px}
.document-body>.button{margin-top:22px}
.document-body strong{color:var(--ink)}
.document-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px}
.break-link{overflow-wrap:anywhere}
.guide-illustration{max-width:850px;margin-block:0 36px}
.guide-illustration img{display:block;width:100%;border:1px solid var(--line);border-radius:18px}
.guide-illustration figcaption{font-size:11px;line-height:1.8;margin-top:11px;color:var(--muted)}
.table-scroll{max-width:100%;overflow:auto;border:1px solid var(--line);border-radius:12px;margin-top:22px}
table{width:100%;border-collapse:collapse;text-align:left;font-size:12px;min-width:440px}
th{background:#f1f6f3;color:var(--navy);font-weight:700}
th,td{padding:13px 17px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
td{color:var(--muted)}
.calculator-page h2{font-size:27px;margin-bottom:17px}
.calculator-page p{font-size:14px;line-height:1.9}
.screen-dialog{width:min(470px,94vw);max-height:94svh;padding:52px 20px 20px;border:1px solid var(--line);border-radius:18px;background:#fff;overflow:auto;color:var(--ink)}
.screen-dialog::backdrop{background:#063e2fbc;backdrop-filter:blur(4px)}
.screen-dialog>img{display:block;width:100%;height:auto;border-radius:12px}
.screen-dialog>p{font-size:10px;line-height:1.8;margin-top:14px}
.dialog-close{position:absolute;top:5px;right:8px;display:grid;place-items:center;width:43px;height:43px;border:0;background:#fff;color:var(--navy);border-radius:9px}
html.dialog-open{overflow:hidden}

/* Short introduction; text never depends on animation. */
.site-loader{display:none;position:fixed;inset:0;z-index:150;background:var(--wash);place-items:center;pointer-events:none;animation:loader-failsafe .15s ease .75s forwards}
[data-loading=true] .site-loader{display:grid}
.loader-inner{text-align:center;width:220px}
.loader-logo{width:82px;height:82px;margin:0 auto 20px;position:relative}
.loader-logo img{display:block;width:82px;height:82px;object-fit:contain;border-radius:16px;box-shadow:0 8px 20px #0b294110}
.loader-logo:after{content:'';position:absolute;inset:-8px;border:1px solid #c5dbcd;border-top:2px solid var(--green);border-radius:24px;animation:loader-spin .7s linear infinite}
.loader-inner>strong{display:block;color:var(--navy);font-size:25px;letter-spacing:-.05em}
.loader-inner>span{display:block;font-size:8px;letter-spacing:.12em;color:var(--muted);margin-top:7px}
.loader-track{height:3px;width:120px;background:#d6e5da;border-radius:3px;margin:23px auto 0;overflow:hidden}
.loader-track i{display:block;height:100%;background:var(--green);transform-origin:left;animation:loader-progress .48s ease both}
.site-loader.is-leaving{opacity:0;transition:opacity .16s}
[data-animate=true] .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s,transform .5s}
[data-animate=true] .reveal.is-visible{opacity:1;transform:none}
[data-motion=off],[data-motion=off] *,[data-motion=off] *:before,[data-motion=off] *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
[data-motion=off] .reveal{opacity:1;transform:none}
@keyframes story-in{from{opacity:.2;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes sheen{0%,65%{transform:translateX(-150%)}88%,100%{transform:translateX(150%)}}
@keyframes robot-bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-3px)}}
@keyframes loader-spin{to{transform:rotate(360deg)}}
@keyframes loader-progress{from{transform:scaleX(.08)}to{transform:scaleX(1)}}
@keyframes loader-failsafe{to{opacity:0;visibility:hidden}}
@keyframes answer-in{from{opacity:.4}to{opacity:1}}
@media(max-width:1100px){.desktop-nav{gap:17px}.desktop-nav a{font-size:11px}.header-inner{gap:18px}.hero-story{padding:34px}.access-card{padding:25px}.reference-fact{padding:19px;gap:12px}.reference-fact strong{font-size:30px}.quick-grid>a{padding:19px 15px}.guide-layout{grid-template-columns:230px minmax(0,1fr);gap:35px}.footer-top{gap:45px}.screen-panel-copy{padding:40px 34px}.screen-panel-copy h3{font-size:34px}}
@media(max-width:900px){
 .container{width:calc(100% - 40px)}.desktop-nav{display:none}.menu-button{display:flex}.header-inner{min-height:76px}.hero-grid{grid-template-columns:1fr 1fr}.hero-story{min-height:0;padding:31px}.hero-story h1{font-size:51px}.hero-story>p{font-size:14px}.hero-note{margin-top:28px}.access-card{padding:25px}.access-card h2{font-size:24px}.invite-controls>input{font-size:24px}.invite-controls{gap:8px}.invite-controls>button{font-size:9px;padding:9px 7px}.reference-strip{gap:10px}.reference-fact{align-items:start;flex-direction:column;gap:9px;padding:18px}.quick-grid{grid-template-columns:repeat(2,1fr)}.section{padding-block:65px}.section-heading{gap:25px}.section-heading>p{max-width:270px;font-size:13px}.screen-panel-copy{padding:32px}.screen-panel-copy h3{font-size:31px}.screen-stage{padding:28px 20px 20px}.screen-stage .app-screen{width:220px}.guide-layout{display:block}.guide-sidebar{display:none}.topic-picker{display:block;border:1px solid var(--line);border-radius:10px;background:var(--wash);margin-bottom:30px}.topic-picker summary{display:flex;align-items:center;gap:12px;list-style:none;padding:17px 19px;font-size:12px;font-weight:700;color:var(--navy)}.topic-picker summary>span{margin-left:auto;font-size:9px;color:var(--muted);font-weight:400}.topic-picker summary>.icon{width:16px;height:16px}.topic-picker[open] summary>.icon{transform:rotate(180deg)}.topic-picker nav{display:grid;padding:0 18px 14px}.topic-picker nav>a{display:flex;gap:13px;padding:11px 0;border-top:1px solid var(--line);font-size:12px;color:var(--ink)}.topic-picker nav>a>span{font:500 10px/2 ui-monospace,monospace;color:var(--green)}.document-body{padding:30px}.calculator{padding:24px}.footer-top{grid-template-columns:1.2fr 1fr 1fr;gap:30px}.resource-grid{gap:10px}.resource-grid>a{padding:15px}.footer-bottom{align-items:start;flex-direction:column}.related-inner{align-items:start;flex-direction:column}.essentials-section{padding-top:12px}
}
@media(max-width:650px){
 html{scroll-padding-top:103px}.container{width:calc(100% - 30px)}.site-header{padding-block:9px}.header-inner{min-height:70px;padding:9px 13px;border-radius:15px}.brand img{width:45px;height:45px}.brand>span{font-size:21px}.brand small{font-size:7px}.header-actions>.button{display:none}.hero{padding-top:8px}.hero-grid{grid-template-columns:1fr;gap:15px}.hero-story{padding:23px 12px;border-radius:18px}.hero-story h1{font-size:36px;max-width:420px;margin-top:15px;line-height:1.08}.hero-story>p{display:none}.hero-tags{margin-top:20px;gap:6px}.hero-tags span,.hero-tags a{font-size:9px;min-height:30px;padding:5px 8px}.hero-note{display:none}.hero-story:after{right:-70px;top:-60px}.access-card{padding:22px;border-radius:22px}.access-card h2{font-size:25px;margin-top:10px}.access-card>p:not(.access-caption){display:none}.access-card .invite-box{margin-top:18px}.access-buttons{margin-top:18px}.invite-controls>input{font-size:29px}.invite-controls>button{padding:10px;font-size:10px}.reference-strip{gap:8px;margin-top:15px}.reference-fact{padding:15px 11px;border-radius:13px}.reference-fact strong{font-size:26px}.reference-fact p{font-size:9px}.reference-fact p span{font-size:7px;letter-spacing:.03em}.reference-fact strong small{font-size:12px}.quick-grid{gap:9px}.quick-grid>a{padding:17px 13px;gap:8px}.quick-grid strong{font-size:12px}.quick-grid small{font-size:9px}.quick-grid .icon{display:none}.section{padding-block:53px}.section-heading{display:block;margin-bottom:27px}.section-heading h2{font-size:33px;margin-top:12px}.section-heading>p{max-width:100%;margin-top:19px;font-size:14px}.screen-tabs button{min-height:58px;padding:14px 8px;gap:5px;font-size:11px}.screen-tabs button span{font-size:9px}.screen-panel{grid-template-columns:1fr}.screen-panel-copy{padding:29px 25px}.screen-panel-copy h3{font-size:29px}.screen-panel-copy p{font-size:14px;margin-top:19px}.screen-stage{padding-block:27px 21px}.screen-stage .app-screen{width:229px}.essentials-grid,.calculator-pair,.calculator-page{grid-template-columns:1fr;gap:18px}.essential-image{aspect-ratio:2/1}.essential-copy{padding:24px}.essential-copy h3{font-size:25px}.chapter{padding-block:29px}.chapter h2{font-size:25px}.chapter p,.chapter li{font-size:14px}.chapter-number{font-size:9px}.chapter-actions .button{gap:16px}.calculator{padding:24px}.calculator-output output{font-size:37px}.faq-list{column-count:1}.faq-list summary{min-height:65px;font-size:13px}.related-links{width:100%}.related-links a{flex:1;min-width:0;padding:12px;gap:8px;font-size:11px}.related-links img{width:30px;height:30px}.closing{padding-block:38px}.closing-inner{display:block}.closing h2{font-size:30px}.closing-inner>.button{margin-top:24px;width:100%}.site-footer{padding-top:43px}.footer-top{grid-template-columns:1fr 1fr;gap:32px 22px}.footer-top>div:first-child{grid-column:1/-1}.footer-top>div>p{max-width:330px}.footer-top h2{font-size:8px}.footer-top nav a{font-size:11px}.resources-intro h2{font-size:25px}.resource-grid{grid-template-columns:1fr;gap:9px}.resource-grid>a{padding:15px 16px}.resource-grid>a>span{font-size:12px}.resource-grid>a>small{font-size:10px;margin-top:5px}.footer-bottom nav{gap:20px}.robot-help{right:10px;bottom:calc(10px + env(safe-area-inset-bottom));width:84px;min-height:78px}.robot-help>img{width:72px;height:56px}.robot-help>span{font-size:8px;padding:4px 7px}.page-hero{padding-block:25px 36px}.breadcrumbs{font-size:10px;margin-bottom:28px}.page-hero h1{font-size:39px}.page-hero p{font-size:14px;margin-top:20px}.document-body{padding:24px 19px;border-radius:17px}.document-body>p,.document-body>ul,.document-body>ol{font-size:14px}.document-body>h2{font-size:25px}.document-links{display:grid}.document-links .button{width:100%}.guide-illustration{margin-bottom:27px}.guide-illustration figcaption{font-size:10px}.table-scroll{margin-top:19px}.essentials-section{padding-top:8px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}[data-animate=true] .reveal{opacity:1;transform:none}.site-loader{display:none!important}}