:root{--red:#ee4131;--red-dark:#d93829;--ink:#1a1b1f;--muted:#737780;--line:#e6e7ea;--bg:#f5f6f8;--white:#fff;--green:#16825a;--green-bg:#e8f7f0;--amber:#b97706;--amber-bg:#fff4dc;--danger:#d4483b;--danger-bg:#ffedeb;--dark:#18191c;--radius:13px;--side:244px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Golos Text","Segoe UI",Inter,Arial,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}.shell{display:grid;grid-template-columns:var(--side) minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;background:var(--dark);color:#fff;padding:24px 15px 18px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:10px;padding:0 8px 22px}.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(145deg,#ff5848 0%,var(--red) 52%,#d92f23 100%);display:grid;place-items:center;font-weight:900;font-size:18px;border:1px solid rgba(255,255,255,.2);box-shadow:0 8px 24px rgba(238,65,49,.3),inset 0 1px 0 rgba(255,255,255,.32);text-shadow:0 1px 8px rgba(0,0,0,.12)}.brand b{font-size:21px;letter-spacing:-.5px}.brand b i{font-style:normal;color:var(--red)}.brand small{display:block;color:#8e9199;font-size:10px;letter-spacing:.75px}.side-note{border:1px solid #34363b;border-radius:11px;background:#222327;padding:12px;margin-bottom:18px;color:#afb2b8;font-size:12px}.side-note strong{display:block;color:#fff;font-size:13px}.side-nav{display:flex;flex-direction:column;gap:3px}.side-nav a{height:40px;border-radius:9px;padding:0 11px;display:flex;align-items:center;color:#afb2b8;font-size:13px}.side-nav a:hover{background:#24262a;color:#fff}.side-nav a.active{background:#fff;color:#18191c;font-weight:800}.side-store{margin-top:16px;background:var(--red);color:#fff!important;font-weight:800;justify-content:center}.side-store:hover{background:var(--red-dark)!important}.side-foot{margin-top:auto;border-top:1px solid #303237;padding:15px 7px 0;color:#777b83;font-size:11px;display:flex;align-items:center;gap:7px;line-height:1.45}.side-foot b{display:block;color:#fff;font-size:12px}.main{min-width:0;display:flex;flex-direction:column;min-height:100vh}.topbar{height:67px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 30px;position:sticky;top:0;z-index:10}.crumb{font-size:13px;color:#9a9da4}.crumb b{color:#303238}.top-actions{display:flex;align-items:center;gap:9px;margin-left:auto}.status{font-size:11px;background:var(--green-bg);color:var(--green);padding:5px 9px;border-radius:15px;font-weight:800}.lang{display:flex;gap:5px}.lang button{border:1px solid #dfe0e3;background:#fff;color:#676b73;border-radius:8px;height:30px;padding:0 10px;font:inherit;font-size:11px;font-weight:800;cursor:pointer}.lang button.active{background:#1c1d20;color:#fff;border-color:#1c1d20}.mobile-menu{display:none;border:1px solid var(--line);background:#fff;border-radius:8px;height:32px}.content{max-width:1180px;width:100%;margin:0 auto;padding:34px 30px 18px;min-height:calc(100vh - 67px);display:flex;flex-direction:column}.hero{margin-bottom:22px}.kicker{display:inline-flex;align-items:center;gap:7px;font-size:11px;letter-spacing:1px;font-weight:800;color:var(--red);text-transform:uppercase;margin-bottom:10px}.kicker:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--red)}h1{font-size:40px;line-height:1.1;letter-spacing:-1.3px;margin:0 0 10px;max-width:900px}h1 em{font-style:normal;color:var(--red)}h2{font-size:20px;line-height:1.3;margin:0 0 7px}h3{font-size:15px;margin:0 0 5px}.lead{color:var(--muted);font-size:15px;max-width:900px;margin:0}.meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:12px}.pill{display:inline-flex;align-items:center;white-space:nowrap;border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 9px;font-size:11px;font-weight:700;color:#676b73}html[data-lang=en] .hero .only-en{display:block}html[data-lang=en] .hero h1.only-en{display:block;margin-bottom:10px}
.actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 15px;background:var(--red);color:#fff;border-radius:8px;font-size:12px;font-weight:800;border:1px solid var(--red)}.button:hover{background:var(--red-dark)}.button.alt{background:#fff;color:#2b2d31;border-color:var(--line)}.summary{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:12px;margin:20px 0}.summary-card,.card,.metric{background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.summary-card{padding:18px;min-height:125px}.summary-card.dark{background:#1c1d20;border-color:#1c1d20;color:#fff}.label{font-size:10px;letter-spacing:1px;font-weight:800;color:#90949b}.summary-card strong{display:block;font-size:23px;line-height:1.2;margin:8px 0 4px}.summary-card p,.metric p{font-size:12px;color:#858991;margin:0}.card{margin:12px 0;overflow:hidden}.card-head{padding:17px 19px;border-bottom:1px solid var(--line);display:flex;gap:12px;align-items:flex-start}.icon{width:31px;height:31px;border-radius:9px;display:grid;place-items:center;font-weight:900;flex:none}.icon.green{background:var(--green-bg);color:var(--green)}.icon.amber{background:var(--amber-bg);color:var(--amber)}.icon.red{background:var(--danger-bg);color:var(--danger)}.card-head p{margin:2px 0 0;color:var(--muted);font-size:12px}.card-body{padding:18px 19px;font-size:13px}.card-body p:first-child{margin-top:0}.card-body p:last-child{margin-bottom:0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.metric{padding:18px}.metric strong{display:block;font-size:22px;margin:7px 0}.metric .spark{height:4px;background:#eceef1;border-radius:5px;margin-top:14px;overflow:hidden}.metric .spark:before{content:"";display:block;width:var(--w,70%);height:100%;background:var(--red)}.use-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.use{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:19px}.use b{display:block;font-size:16px;margin:7px 0}.use p{color:var(--muted);font-size:13px;margin:0}.data-table{width:100%;border-collapse:collapse;font-size:12px}.data-table th,.data-table td{text-align:left;vertical-align:top;padding:11px 10px;border-bottom:1px solid #eff0f2}.data-table th{font-size:10px;letter-spacing:.7px;color:#92959d;background:#fafafa}.data-table tr:last-child td{border-bottom:0}.yes{color:var(--green);font-weight:900}.warn{color:var(--amber);font-weight:800}.notice{border:1px solid #f0d4cf;background:#fff8f7;border-radius:11px;padding:14px 16px;font-size:12px;color:#6c4a45;margin-top:12px}.steps{counter-reset:step;display:grid;gap:10px}.step{display:flex;gap:12px;align-items:flex-start;border:1px solid var(--line);background:#fff;border-radius:11px;padding:14px}.step:before{counter-increment:step;content:counter(step);width:30px;height:30px;display:grid;place-items:center;border-radius:8px;background:#ffedeb;color:var(--red);font-weight:900;flex:none}.step p{margin:2px 0;color:var(--muted);font-size:12px}.doc-nav{display:flex;gap:7px;flex-wrap:wrap;margin:15px 0}.doc-nav a{font-size:11px;border:1px solid var(--line);background:#fff;padding:6px 9px;border-radius:18px;color:#666}.footer{margin-top:auto;padding-top:24px;color:#858991;font-size:11px;line-height:1.45;text-align:center}.footer a{color:#777;text-decoration:underline}.only-en{display:none}html[data-lang=en] .only-ru{display:none!important}html[data-lang=en] .only-en{display:initial}html[data-lang=en] .block.only-en{display:block}.block.only-en{display:none}.faq details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:13px 15px;margin:8px 0}.faq summary{cursor:pointer;font-weight:800;font-size:13px}.faq p{font-size:12px;color:var(--muted)}.nav-overlay,.mobile-menu-close{display:none}.mobile-drawer-head{display:block}.topbar>.mobile-top-brand{display:none}@media(max-width:920px){body.nav-open{overflow:hidden;overscroll-behavior:none}.shell{display:block}.shell>.sidebar{position:fixed;top:0;right:0;left:auto;width:min(88vw,380px);height:100dvh;padding:max(18px,env(safe-area-inset-top)) 16px max(16px,env(safe-area-inset-bottom));background:var(--dark);z-index:1002;transform:translate3d(100%,0,0);transition:transform .22s ease;box-shadow:-18px 0 48px rgba(0,0,0,.2);overflow-y:auto;overscroll-behavior:contain;visibility:hidden}body .sidebar.open{transform:translate3d(0,0,0);visibility:visible}.mobile-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.mobile-drawer-head .brand{padding:0;min-width:0}.mobile-menu-close{display:grid;place-items:center;flex:0 0 38px;width:38px;height:38px;border:1px solid #393b40;border-radius:10px;background:#24262a;color:#fff;font:400 27px/1 Arial,sans-serif;cursor:pointer}body .side-note{display:block;margin:18px 0 14px}body .side-foot{display:flex;align-items:center;flex-wrap:wrap;gap:6px 12px;margin-top:auto;padding-top:18px}body .side-foot-sep{display:none}body .side-foot a{display:inline-flex;min-height:32px;align-items:center}body .side-nav{display:flex;margin-top:0;gap:4px}body .side-nav a{min-height:44px;height:auto;padding:10px 12px;font-size:14px}body .side-store{margin-top:14px;min-height:46px}.nav-overlay{display:block;position:fixed;inset:0;background:rgba(15,16,18,.48);backdrop-filter:blur(1px);z-index:1001;opacity:1}.nav-overlay[hidden]{display:none}body .mobile-menu{display:inline-flex;align-items:center;justify-content:center;width:38px;padding:0;cursor:pointer;font-size:18px}body .topbar{top:0;min-height:60px;height:60px;padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right));justify-content:flex-start;gap:14px}body .topbar .mobile-top-brand{display:flex;align-items:center;gap:8px;min-width:0;color:#1b1d20;font-weight:850;letter-spacing:-.35px}.mobile-top-brand-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:var(--red);color:#fff;font-size:13px;font-weight:900;box-shadow:0 6px 16px rgba(238,65,49,.18)}.mobile-top-brand b{font-size:15px;white-space:nowrap}body .content{padding:26px 16px 48px}.summary,.grid{grid-template-columns:1fr}.use-grid{grid-template-columns:1fr}h1{font-size:33px}}@media(max-width:560px){body .sidebar{width:min(90vw,360px)}.mobile-drawer-head .brand small{font-size:9px}.crumb{display:none}.topbar{justify-content:space-between}.status{display:none}.data-table{display:block;overflow-x:auto}.actions .button{width:100%}}@media(prefers-reduced-motion:reduce){body .sidebar{transition:none}.nav-overlay{backdrop-filter:none}}

.chip-grid{display:flex;flex-wrap:wrap;gap:8px}.chip-grid span{border:1px solid var(--line);background:#fafafa;border-radius:8px;padding:7px 10px;font-size:12px;font-weight:700;color:#555}.compare-demo{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}.compare-demo>div{border:1px solid var(--line);border-radius:11px;padding:16px;background:#fafafa}.compare-demo>div:last-child{background:#f5fbf8;border-color:#d7eee4}.compare-demo small{display:block;color:#92959d;font-weight:800;letter-spacing:.8px;margin-bottom:8px}.compare-demo b{font-size:14px}.compare-demo p{font-size:12px;color:var(--muted);margin:6px 0}.feature-list,.guide-topics{display:grid;gap:10px}.feature-row,.guide-topic{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:17px 19px;display:grid;grid-template-columns:42px 1fr;gap:12px}.feature-no,.guide-topic-head span{width:34px;height:34px;border-radius:9px;background:#ffedeb;color:var(--red);display:grid;place-items:center;font-size:11px;font-weight:900}.feature-row h2,.guide-topic h2{font-size:16px;margin:0 0 4px}.feature-row p,.guide-topic p{font-size:12px;color:var(--muted);margin:0}.guide-topic{display:block}.guide-topic-head{display:flex;align-items:center;gap:11px;margin-bottom:9px}.guide-topic-head span{flex:none}@media(max-width:700px){.compare-demo{grid-template-columns:1fr}.feature-row{grid-template-columns:36px 1fr;padding:14px}}



.plan-hero{max-width:1040px;margin-bottom:28px}.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;max-width:1040px;margin:0 auto 14px;align-items:stretch}.plan-card{min-width:0;min-height:400px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 22px;display:flex;flex-direction:column}.plan-card.dark{background:var(--dark);border-color:var(--dark);color:#fff}.plan-card .label{color:#92959d}.plan-card.dark .label{color:#aeb1b8}.plan-card strong{display:block;font-size:22px;line-height:1.25;margin:8px 0}.plan-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.plan-card.dark p{color:#aeb1b8}.plan-fact{margin-top:auto;padding-top:18px;font-size:12px;font-weight:800;color:var(--red)}.plan-card.dark .plan-fact{color:#fff}.plan-engine{margin-top:22px}.note{margin:12px 0 0;color:var(--muted);font-size:12px}@media(max-width:980px){.plan-grid{grid-template-columns:1fr}.plan-card{min-height:0;padding:22px}}@media(max-width:560px){.plan-card{padding:17px}.plan-card strong{font-size:20px}}

.hero-trust{margin-top:10px;color:var(--muted);font-size:12px;font-weight:700}.faq details[open]{border-color:#d8dade}.faq summary:focus-visible,.button:focus-visible,.side-nav a:focus-visible{outline:3px solid rgba(238,65,49,.25);outline-offset:2px}

/* DEV-148 pricing */
.pricing-card{position:relative;overflow:hidden}.pricing-card.featured{border-color:var(--red);box-shadow:0 12px 30px rgba(0,0,0,.08)}.pricing-card .price{font-size:40px;line-height:1.05;letter-spacing:-.03em;margin:10px 0;min-height:50px}.pricing-card .price small{font-size:14px;font-weight:700;letter-spacing:0}.pricing-card .price>span,.old-price s{display:inline-block;font-variant-numeric:tabular-nums;white-space:nowrap;min-width:4.2ch}.pricing-card p{min-height:66px}.old-price{height:20px;color:var(--muted);font-size:14px;font-weight:800;margin:8px 0 0;font-variant-numeric:tabular-nums}.discount-badge,.best-badge{position:absolute;right:14px;top:14px;border-radius:999px;padding:6px 9px;font-size:10px;font-weight:900;letter-spacing:.04em}.discount-badge{background:#fff0ee;color:var(--red)}.best-badge{background:#f2f3f5;color:var(--dark)}
.pricing-toolbar{max-width:1040px;margin:0 auto 18px;display:flex;justify-content:flex-end}.pricing-toolbar>div:first-child{display:none}.seat-picker{display:flex;align-items:center;gap:10px;padding:8px 10px 8px 14px;background:#fff;border:1px solid #e2e5e9;border-radius:12px;box-shadow:0 6px 18px rgba(18,24,33,.05);font-weight:800}.seat-picker span{font-size:13px;color:var(--muted)}.seat-picker select{min-width:180px;border:0;background:#fff;padding:8px 30px 8px 8px;outline:0;font:inherit;color:var(--dark)}.pricing-seat-note{max-width:1040px;margin:-8px auto 14px;text-align:right;color:var(--muted);font-size:13px;font-weight:700}.pricing-cta{display:flex;justify-content:center;width:100%;margin-top:auto;box-sizing:border-box}.pricing-contact{max-width:1040px;text-align:right;margin:16px auto 28px;color:var(--muted);font-weight:700}.pricing-contact a{color:var(--red);text-decoration:none}.pricing-grid .plan-fact{margin-top:auto;padding-top:18px;min-height:48px;display:flex;align-items:flex-end}.old-price-placeholder{visibility:hidden}.pricing-grid .pricing-cta{margin-top:12px;min-height:42px}.price-usd{display:block;margin-top:6px;color:var(--muted);font-size:12px;font-weight:700}.fx-note{max-width:1040px;margin:10px auto 0;text-align:right;color:var(--muted);font-size:12px;min-height:18px}.fx-note[hidden]{display:none}
@media(max-width:980px){.pricing-card p{min-height:0}.pricing-toolbar{justify-content:stretch}.seat-picker{width:100%;justify-content:space-between}.seat-picker select{flex:0 1 220px}.pricing-seat-note,.pricing-contact,.fx-note{max-width:none}.pricing-contact,.pricing-seat-note,.fx-note{text-align:left}}
@media(max-width:520px){.plan-hero h1{font-size:34px}.seat-picker span{white-space:nowrap}.seat-picker select{min-width:0;width:58%;font-size:14px}.pricing-card .price{font-size:36px}.discount-badge,.best-badge{position:static;align-self:flex-start;margin-bottom:10px}}

/* DEV-148 legal/privacy */
.cookie-notice{position:fixed;left:calc(var(--side) + 20px);right:20px;bottom:18px;z-index:1200;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 44px rgba(0,0,0,.14);padding:13px 15px;display:flex;align-items:center;gap:14px}.cookie-notice[hidden]{display:none}.cookie-notice div{display:flex;flex-direction:column;min-width:0;flex:1}.cookie-notice b{font-size:13px}.cookie-notice span{font-size:11px;color:var(--muted)}.cookie-notice a{font-size:12px;text-decoration:underline}.cookie-notice button{border:0;background:var(--dark);color:#fff;border-radius:8px;padding:8px 13px;font-weight:800;cursor:pointer}.legal-form{display:grid;gap:12px;max-width:720px}.legal-form label{display:grid;gap:5px;font-size:12px;font-weight:700}.legal-form input,.legal-form textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:10px 11px;font:inherit;background:#fff}.legal-consent{display:flex!important;grid-template-columns:none!important;gap:9px!important;align-items:flex-start;font-weight:400!important}.legal-consent input{width:auto;margin-top:4px}.form-status{font-size:12px;min-height:20px}.form-status.ok{color:var(--green)}.form-status.err{color:var(--danger)}@media(max-width:920px){body>.cookie-notice{left:16px;right:16px;bottom:14px}}@media(max-width:560px){html body>.cookie-notice{align-items:stretch;flex-wrap:wrap}.cookie-notice>div{flex-basis:100%}.cookie-notice>button{margin-left:auto}}

/* DEV-148 design-system controls: public pricing selector follows BYDIFF UI instead of native OS popup */
.native-select-a11y{display:none}
.by-select{position:relative;min-width:220px}.by-select-trigger{width:100%;height:44px;border:0;background:transparent;padding:0 2px 0 12px;display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--ink);font:inherit;cursor:pointer;text-align:left}.by-select-trigger strong{font-size:15px;font-weight:800;white-space:nowrap}.by-select-chevron{width:8px;height:8px;border-right:1.8px solid #2c2e33;border-bottom:1.8px solid #2c2e33;transform:rotate(45deg) translateY(-2px);transition:transform .16s ease;margin-right:5px}.by-select.open .by-select-chevron{transform:rotate(225deg) translate(-1px,-1px)}.by-select-menu{position:absolute;z-index:80;top:calc(100% + 8px);right:0;width:100%;min-width:220px;padding:6px;background:#fff;border:1px solid var(--line);border-radius:11px;box-shadow:0 16px 38px rgba(20,22,26,.14)}.by-select-menu[hidden]{display:none}.by-select-menu button{width:100%;border:0;background:transparent;border-radius:8px;padding:9px 11px;color:#34363b;font:inherit;font-size:13px;text-align:left;cursor:pointer}.by-select-menu button:hover,.by-select-menu button:focus-visible{outline:none;background:#f4f5f7}.by-select-menu button[aria-selected=true]{background:#fff0ee;color:var(--red-dark);font-weight:800}.by-select-trigger:focus-visible{outline:2px solid rgba(238,65,49,.3);outline-offset:3px;border-radius:7px}

/* Public Updates journal */
.updates-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.update-card{display:grid;grid-template-columns:46px 1fr;gap:14px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:19px;min-height:170px;transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease}.update-card:hover{border-color:#d6d8dc;transform:translateY(-2px);box-shadow:0 12px 30px rgba(24,25,28,.06)}.update-no{width:42px;height:42px;border-radius:11px;background:var(--danger-bg);color:var(--danger);display:grid;place-items:center;font-size:12px;font-weight:900;letter-spacing:.5px}.update-card h2{margin:1px 0 7px}.update-card p{margin:0;color:var(--muted);font-size:13px}.update-link{display:inline-block;margin-top:14px;color:var(--red);font-size:12px;font-weight:800}.update-article{max-width:900px}.update-detail{margin-top:24px}.update-list{margin:0;padding:0;list-style:none;display:grid;gap:0}.update-list li{position:relative;padding:12px 0 12px 24px;border-bottom:1px solid #eff0f2;color:#555960}.update-list li:last-child{border-bottom:0}.update-list li:before{content:"✓";position:absolute;left:0;top:12px;color:var(--green);font-weight:900}.update-nav{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}@media(max-width:760px){body .updates-grid{grid-template-columns:1fr}body .update-card{min-height:0}}@media(prefers-reduced-motion:reduce){html .update-card{transition:none}html .update-card:hover{transform:none}}
/* DEV-161 unified BYDIFF visual system, footer baseline and icon contract */
@media(min-width:981px){
  .pricing-grid .plan-card{min-height:350px}
  .pricing-grid .pricing-card p{min-height:58px}
  .pricing-grid .plan-fact{min-height:42px;padding-top:12px}
  .pricing-grid .pricing-cta{margin-top:10px}
}
.side-foot{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.side-foot a{color:#aeb1b8;text-decoration:none}
.side-foot a:hover{color:#fff}
.side-foot .side-foot-sep{color:#555960}

/* DEV-163 public pricing is informational; checkout lives in the account */
.pricing-after-trial{display:block;margin-top:auto;padding:12px 0;font-size:13px;font-weight:800;color:var(--muted)}.trial-primary{display:flex;flex-direction:column;align-items:center;gap:8px;margin:18px auto 28px}.trial-primary small{color:var(--muted);text-align:center}

/* DEV-220 public information architecture */
.help-hero{max-width:900px}.help-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.help-card{display:flex;gap:14px;min-height:190px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);color:inherit;transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease}.help-card .icon{flex:0 0 40px}.help-card h2{margin:2px 0 7px;font-size:18px}.help-card p{margin:0 0 14px;color:var(--muted);font-size:13px;line-height:1.6}.help-card b{color:var(--red);font-size:12px}.help-card:hover{border-color:#d6d8dc;transform:translateY(-2px);box-shadow:0 12px 30px rgba(24,25,28,.06)}.guide-toc{position:sticky;top:86px;z-index:3;margin:0 0 14px;padding:12px 14px;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:12px;backdrop-filter:blur(8px)}.guide-toc strong{display:block;margin-bottom:8px;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:#858991}.guide-toc div{display:flex;gap:7px;flex-wrap:wrap}.guide-toc a{padding:7px 10px;border:1px solid var(--line);border-radius:999px;background:#fafafa;font-size:11px;font-weight:800;color:#555}body .guide-topic{scroll-margin-top:150px}.help-card:focus-visible,.guide-toc a:focus-visible{outline:3px solid rgba(238,65,49,.25);outline-offset:2px}@media(max-width:920px){body .help-grid{grid-template-columns:1fr}body .help-card{min-height:0}body .guide-toc{position:static}}@media(prefers-reduced-motion:reduce){html .help-card{transition:none}html .help-card:hover{transform:none}}

/* DEV-223 public UX + BY Difference brand cue */
.brand-difference{display:inline-flex;align-items:center;padding:3px 7px;border:1px solid #ffd6d1;border-radius:999px;background:#fff5f3;color:var(--red-dark);font-size:9px;letter-spacing:.08em}.help-path{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:-6px 0 12px}.help-path span{display:flex;align-items:center;gap:9px;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:#fafafa;color:var(--muted)}.help-path b{display:grid;place-items:center;width:25px;height:25px;border-radius:8px;background:#fff0ee;color:var(--red);font-size:10px}.help-path i{font-style:normal;font-size:11px;font-weight:800}@media(max-width:760px){body .help-path{grid-template-columns:1fr}}


/* DEV-224 public density and hierarchy */
.overview-detail .card-head{padding-bottom:14px}.overview-detail .card-body{padding-top:14px}.overview-detail .use{padding:15px}.feature-section-title{grid-column:1/-1;margin:14px 0 2px;padding:8px 2px;border-bottom:1px solid var(--line);color:#858991;font-size:11px;font-weight:900;letter-spacing:.07em;text-transform:uppercase}.feature-section-title:first-child{margin-top:0}.guide-hint{margin:-3px 0 12px;color:var(--muted);font-size:12px}.guide-accordion{display:grid;gap:8px}.guide-accordion .guide-topic{scroll-margin-top:150px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:0;overflow:hidden}.guide-accordion .guide-topic summary{display:flex;align-items:center;gap:12px;padding:14px 16px;cursor:pointer;list-style:none}.guide-accordion .guide-topic summary::-webkit-details-marker{display:none}.guide-accordion .guide-topic summary span{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:#f4f5f7;color:#7d8188;font-size:10px;font-weight:900}.guide-accordion .guide-topic summary b{font-size:14px}.guide-accordion .guide-topic summary:after{content:"+";margin-left:auto;color:#9a9da3;font-size:18px}.guide-accordion .guide-topic[open] summary:after{content:"−"}.guide-accordion .guide-topic p{margin:0;padding:0 56px 16px;color:var(--muted);font-size:13px;line-height:1.65}.guide-accordion .guide-topic summary:focus-visible{outline:3px solid rgba(238,65,49,.22);outline-offset:-3px}.support-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.support-grid .card{margin:0}.support-contact{margin-top:12px}.update-card.current{position:relative;border-color:#f3b8b1;background:linear-gradient(180deg,#fff 0,#fffafa 100%)}.current-badge{position:absolute;right:14px;top:14px;padding:5px 8px;border-radius:999px;background:#fff0ee;color:var(--red);font-size:9px;font-weight:900;text-transform:uppercase;letter-spacing:.05em}.pricing-seat-note+.fx-note{margin-top:-8px;margin-bottom:14px}
@media(max-width:920px){body .support-grid{grid-template-columns:1fr}body .guide-accordion .guide-topic p{padding-left:16px;padding-right:16px}}
@media(prefers-reduced-motion:reduce){html .guide-accordion .guide-topic{scroll-behavior:auto}}
/* DEV-226 — product-led visual preview using the real BYDIFF interface language. */
.product-visual{display:grid;grid-template-columns:minmax(0,.78fr) minmax(460px,1.22fr);gap:34px;align-items:center;margin:22px 0 28px;padding:30px;border:1px solid #e8e9ec;border-radius:18px;background:linear-gradient(135deg,#fff 0%,#fff 58%,#fff6f4 100%);box-shadow:0 18px 50px rgba(28,31,36,.06)}
.product-visual-copy h2{margin:9px 0 10px;font-size:30px;line-height:1.08;letter-spacing:-.025em}.product-visual-copy p{margin:0;color:#6f747d;line-height:1.65}.product-window{overflow:hidden;border:1px solid #e0e2e6;border-radius:14px;background:#f6f7f9;box-shadow:0 20px 45px rgba(23,26,31,.12);transform:perspective(1100px) rotateY(-2deg)}
.product-window-bar{display:flex;align-items:center;gap:6px;height:34px;padding:0 12px;background:#fff;border-bottom:1px solid #e8e9ec;color:#8a8f97;font-size:10px}.product-window-bar i{width:7px;height:7px;border-radius:50%;background:#e5e6e9}.product-window-bar i:first-child{background:#ee4131}.product-window-bar span{margin-left:5px}.product-window-body{display:grid;grid-template-columns:58px 1fr;min-height:238px}.product-window-body aside{display:flex;flex-direction:column;align-items:center;gap:15px;padding:16px 10px;background:#17191d}.product-window-body aside b{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:linear-gradient(145deg,#ff5748,#e92f22);color:#fff;font-size:11px;box-shadow:0 7px 18px rgba(238,65,49,.28)}.product-window-body aside span{width:24px;height:5px;border-radius:8px;background:#36393f}.product-window-body main{padding:16px}.product-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.product-kpis span{padding:10px;border:1px solid #e8e9ec;border-radius:9px;background:#fff}.product-kpis b,.product-kpis small{display:block}html .product-kpis b{font-size:18px}html .product-kpis small{margin-top:2px;color:#999;font-size:8px}.product-chart{display:flex;align-items:end;gap:7px;height:88px;margin:12px 0;padding:12px 13px 0;border:1px solid #e8e9ec;border-radius:10px;background:#fff}.product-chart i{flex:1;min-height:6px;border-radius:5px 5px 2px 2px;background:linear-gradient(#f37b70,#ee4131)}.product-diff{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid #e8e9ec;border-radius:10px;background:#fff}.product-diff span{display:flex;gap:6px;align-items:baseline}.product-diff small{font-size:8px;color:#9a9ea5}.product-diff b{font-size:12px}.product-diff em{color:#aaa}.product-diff mark{margin-left:auto;padding:3px 7px;border-radius:999px;background:#eef3f8;color:#607080;font-size:8px;font-style:normal}
@media(max-width:900px){html .product-visual{grid-template-columns:1fr;padding:22px}html .product-window{transform:none}body .product-visual-copy h2{font-size:26px}}@media(max-width:560px){html .product-window-body{grid-template-columns:42px 1fr}html .product-window-body aside{padding-inline:6px}html .product-kpis{grid-template-columns:repeat(2,1fr)}html .product-diff{flex-wrap:wrap}body .product-visual{padding:17px;gap:20px}}
/* DEV-273: guide quick navigation follows the reader within the guide section. */
.guide-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:18px;align-items:start}.guide-main{min-width:0}.guide-side{min-width:0;position:sticky;top:86px;align-self:start}.guide-side .guide-toc{position:static;top:auto;margin:0;padding:16px;background:#fff}.guide-side .guide-toc div{display:grid;gap:7px}.guide-side .guide-toc a{display:block;width:100%;box-sizing:border-box;border-radius:9px;padding:9px 11px}.guide-side .guide-toc a:hover{border-color:#f2b4ad;background:#fff5f3;color:#b52d21}.guide-side .guide-toc a.active{border-color:#f2b4ad;background:#fff5f3;color:#b52d21;box-shadow:inset 3px 0 0 var(--red)}.guide-layout .guide-topic{scroll-margin-top:96px}@media(max-width:1100px){.guide-layout{grid-template-columns:minmax(0,1fr) 220px}}@media(max-width:920px){body .guide-layout{grid-template-columns:1fr}body .guide-side{order:-1;position:static;top:auto}body .guide-layout .guide-toc{margin:0 0 12px}body .guide-side .guide-toc div{display:flex;gap:7px;flex-wrap:wrap}body .guide-side .guide-toc a{width:auto;border-radius:999px;padding:7px 10px}}