/* BlueBoxSimulation site: light, technical, left-aligned. */
:root{--ink:#14181d;--text:#2b3037;--mute:#646b73;--line:#d6d8db;--hair:#e4e6e8;--soft:#f5f5f5;--blue:#0b5fb3;--blue-soft:#eef3f8;--orange:#d9550b;--orange-dark:#b84709;--red:#c8372d;--green:#1f8a4c}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:#fff;color:var(--text);font:400 16px/1.6 Inter,Arial,sans-serif;-webkit-text-size-adjust:100%}
img,video{display:block;max-width:100%}a{color:var(--blue)}h1,h2,h3{color:var(--ink);line-height:1.15;margin:0;font-weight:300}h3{font-weight:400}
.wrap{width:min(1200px,calc(100% - 48px));margin-inline:auto}
.btn{display:inline-flex;align-items:center;gap:10px;color:var(--orange);font-weight:400;font-size:17px;line-height:1.2;text-decoration:none;cursor:pointer}.btn::after{content:"";width:8px;height:8px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg);transition:transform .15s}.btn:hover{color:var(--orange-dark)}.btn:hover::after{transform:translateX(3px) rotate(45deg)}.btn-quiet{color:var(--ink)}.btn-quiet:hover{color:var(--orange)}
.btn-solid{justify-self:start;border:0;border-radius:2px;background:var(--orange);color:#fff;font:500 15px Inter,sans-serif;padding:13px 26px;cursor:pointer}.btn-solid:hover{background:var(--orange-dark)}
.btn-row{display:flex;flex-wrap:wrap;gap:30px}.header-right .btn{font-size:15px;white-space:nowrap}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:700;color:var(--ink);text-decoration:none;white-space:nowrap}.brand b{color:var(--blue);font-weight:700}

/* header */
.site-header{position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--hair)}
.header-row{display:flex;align-items:center;gap:28px;min-height:70px}
.menu{display:flex;align-items:center;gap:22px;flex:1;font-size:15px}
.menu-item{position:relative}.menu-button{display:inline-flex;align-items:center;gap:7px;border:0;background:none;padding:10px 0;color:var(--ink);font:inherit;cursor:pointer}
.menu-link{color:var(--ink);text-decoration:none;padding:10px 0}.menu-link:hover,.menu-button:hover{color:var(--blue)}
.dropdown{position:absolute;top:100%;left:-14px;display:none;width:360px;padding:8px;background:#fff;border:1px solid var(--hair);border-radius:2px;box-shadow:0 12px 32px #14181d1f}
.menu-item:hover .dropdown,.menu-item:focus-within .dropdown{display:block}
.dropdown a{display:block;padding:9px 11px;border-radius:6px;text-decoration:none;color:var(--ink)}.dropdown a:hover{background:var(--soft)}.dropdown b{display:block;font-weight:500;font-size:14px}.dropdown span{display:block;color:var(--mute);font-size:13px;line-height:1.4;margin-top:1px}
.header-right{display:flex;align-items:center;gap:16px;margin-left:auto}
.lang-switch{display:flex;gap:9px;font-size:13px}.lang-switch a{color:var(--mute);text-decoration:none}.lang-switch a[aria-current]{color:var(--ink);font-weight:600}
.mobile-menu{display:none}

/* hero */
.hero{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding:72px 0}
.hero h1{font-size:48px;letter-spacing:-.025em}.hero>div:first-child>p{margin:16px 0 24px;font-size:18px;line-height:1.55}.hero>div:first-child>p:last-child{margin-bottom:0}
.hero-image{width:100%;height:auto;border-radius:2px}
.hero-wide{align-items:start;gap:36px 64px;padding:64px 0 72px}.hero-wide>div>p{margin:6px 0 24px;font-size:18px;line-height:1.55}.hero-wide .hero-image{grid-column:1/-1}
.crumb-bar{font-size:13px;color:var(--mute)}.crumb-bar .wrap{padding-top:18px}.crumb-bar a{color:var(--mute);text-decoration:none}.crumb-bar a:hover{color:var(--blue)}.crumb-bar i{font-style:normal;margin-inline:7px}

/* home bands */
.band{padding:84px 0}.band:nth-child(odd){background:var(--soft)}
.band-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}.band:nth-child(even) .band-grid>:first-child{order:2}
.band h2{font-size:34px;letter-spacing:-.02em}.band p{margin:16px 0 22px;font-size:17px}
.band-visual{height:320px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#fff;border-radius:2px}
.band-visual img{width:100%;height:100%;object-fit:cover}.band-visual img.contain{object-fit:contain;padding:10px}.band-visual img.top{object-position:0 20%}
.points{display:grid;grid-template-columns:repeat(4,1fr);padding:64px 0}.points div{padding:4px 26px;border-left:1px solid var(--hair);color:var(--ink);font-size:21px;line-height:1.35;font-weight:300}.points div:first-child{border-left:0;padding-left:0}
.rows-section{padding:96px 0;border-top:1px solid var(--line)}.rows-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}.rows-grid h2{font-size:52px;letter-spacing:-.03em}.rows{border-bottom:1px solid var(--ink)}.rows a{position:relative;display:block;padding:17px 34px 17px 0;border-top:1px solid var(--ink);color:var(--ink);text-decoration:none}.rows a::after{content:"";position:absolute;right:6px;top:50%;width:8px;height:8px;margin-top:-4px;border-top:1px solid var(--orange);border-right:1px solid var(--orange);transform:rotate(45deg)}.rows a:hover b{color:var(--orange)}.rows b{display:block;font-size:21px;font-weight:300;line-height:1.3}.rows span{display:block;margin-top:2px;color:var(--mute);font-size:14px;line-height:1.45}
.section{padding:96px 0;background:var(--soft)}.section h2{font-size:52px;letter-spacing:-.03em}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:40px 28px;margin-top:44px}
.card{display:flex;flex-direction:column;gap:8px;color:var(--ink);text-decoration:none}.card:hover h3{color:var(--orange)}.card h3{font-size:21px;font-weight:300;margin-top:8px}.card p{flex:1;margin:0;color:var(--mute);font-size:14px;line-height:1.5}.card .go{color:var(--orange);font-size:14px}
.thumb{height:170px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#fff;border-radius:2px}.thumb img{width:100%;height:100%;object-fit:cover}.thumb-big{color:var(--ink);font-size:30px;font-weight:300;line-height:1.2;letter-spacing:-.02em;text-align:center}.thumb-big span{display:block;margin-top:8px;color:var(--mute);font-size:14px;font-weight:400;letter-spacing:0}.thumb-stages{width:82%;color:var(--ink);font-size:19px;font-weight:300;line-height:1.25}.thumb-stages div{padding:8px 0;border-top:1px solid var(--hair)}.thumb-stages div:first-child{border-top:0}
.thumb img.contain{object-fit:contain;padding:6px;background:#fff}.thumb img.top{object-position:0 20%}

/* contact */
.contact{padding:96px 0}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}.contact h2{font-size:52px;letter-spacing:-.03em}.contact p{font-size:17px}
.contact-form{display:grid;gap:14px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-field label{display:block;margin-bottom:4px;font-size:13px;color:var(--mute)}
.form-field input,.form-field select,.form-field textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:6px;font:inherit;color:var(--ink);background:#fff}.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:2px solid var(--blue);outline-offset:-1px}
.phone-row{display:grid;grid-template-columns:90px 1fr;gap:8px}.contact-form.sending button{opacity:.6;pointer-events:none}
.form-note{display:none;margin:12px 0 0;font-size:15px}.form-note.show{display:block}.form-error{color:var(--red)}.form-success{color:var(--green);font-weight:600}

/* article */
.article-layout{display:grid;grid-template-columns:minmax(0,740px) 240px;gap:64px;justify-content:space-between;padding:44px 0 96px;border-top:1px solid var(--ink)}
.byline{margin:0 0 26px;color:var(--mute);font-size:14px}
.article{font-size:18px;line-height:1.72}.article>:first-child{margin-top:0}.article h2{margin:54px 0 16px;font-size:32px;letter-spacing:-.02em}.article h3{margin:30px 0 8px;font-size:20px}.article p{margin:0 0 18px}.article ul,.article ol{margin:0 0 22px;padding-left:24px}.article li{margin-bottom:8px}.article li::marker{color:var(--blue)}.article strong{color:var(--ink);font-weight:600}
.article blockquote{margin:26px 0;padding:15px 20px;border-left:3px solid var(--orange);background:#fff7ee;border-radius:0 6px 6px 0;font-size:16px;line-height:1.6}.article blockquote p{margin:0}
.article table{display:block;max-width:100%;overflow-x:auto;margin:6px 0 28px;border-collapse:collapse;font-size:15px;line-height:1.5}.article th,.article td{padding:10px 18px 10px 0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.article th{color:var(--mute);font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap}.article td{color:var(--text)}
.article figure{margin:30px 0}.article figure img,.article figure video{width:100%;height:auto;border-radius:2px;background:#fff}.figure-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:30px 0 9px}.figure-pair img{width:100%;height:100%;object-fit:cover;border:1px solid var(--hair);border-radius:2px}.article .pair-caption{margin-bottom:30px;color:var(--mute);font-size:14px;line-height:1.5}.article figcaption{margin-top:9px;color:var(--mute);font-size:14px;line-height:1.5}
.article code{font:500 .86em 'IBM Plex Mono',monospace;color:var(--blue)}
.toc{position:sticky;top:96px;align-self:start;font-size:14px;line-height:1.4}.toc p{margin:0 0 10px;color:var(--ink);font-weight:600}.toc a{display:block;padding:6px 0;color:var(--mute);text-decoration:none}.toc a:hover{color:var(--orange)}

/* visuals */
.panel{padding:18px 0 0;border-top:1px solid var(--ink)}.panel h2{font-size:21px;font-weight:300;letter-spacing:0}.panel-note{margin:6px 0 12px;color:var(--mute);font-size:14px;line-height:1.45}.fine{margin:10px 0 0;color:var(--mute);font-size:13px;line-height:1.45}
.bar-row{display:grid;grid-template-columns:135px 1fr;gap:12px;align-items:center;margin:9px 0;font-size:14px}.track{position:relative;height:26px;overflow:hidden;background:var(--soft);border-radius:4px}.fill{position:absolute;inset:0 auto 0 0;display:flex;align-items:center;padding-left:8px;color:#fff;font-size:13px;font-weight:600;white-space:nowrap}
.formula{margin:0 0 14px;padding:14px 16px;background:var(--soft);border-radius:6px;color:var(--ink);font:500 15px/1.5 'IBM Plex Mono',monospace}.kv{display:grid;grid-template-columns:1fr auto;margin:0}.kv dt,.kv dd{margin:0;padding:8px 0;border-bottom:1px solid var(--hair);font-size:15px}.kv dd{color:var(--ink);font-weight:600;text-align:right}
.seg{display:flex;gap:6px;margin:12px 0}.seg button,.choice{border:1px solid var(--line);border-radius:2px;background:#fff;color:var(--ink);font:500 14px Inter,sans-serif;padding:8px 13px;cursor:pointer}.seg button[aria-pressed=true],.choice[aria-pressed=true]{border-color:var(--blue);background:var(--blue-soft);color:var(--blue)}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0}.compare>div{padding:14px;border:1px solid var(--line);margin-left:-1px;opacity:.5}.compare>div.on{position:relative;opacity:1;border-color:var(--blue);background:#f6fafe}.compare b{display:block;color:var(--ink);font-size:24px;line-height:1.2}.compare span{display:block;margin-bottom:10px;font-size:13px;color:var(--mute)}
.choices{display:grid;gap:7px}.choice{width:100%;text-align:left;line-height:1.35}
.profiles{margin-top:12px}.profile{display:flex;align-items:center;gap:10px;margin:6px 0;font:500 12px 'IBM Plex Mono',monospace;color:var(--mute)}.profile i{display:block;height:17px;border:1px solid #93a1af;border-radius:2px;background:repeating-linear-gradient(90deg,#b8c3ce 0 2px,#cdd6df 2px 9px)}
.log{margin-top:10px;min-height:112px;padding:13px;border-radius:6px;background:#101a24;color:#cfe3f5;font:13px/1.55 'IBM Plex Mono',monospace}.log .err{color:#ff9d8f}.log .ok{color:#8fe0ad}
.station-strip{display:grid;grid-template-columns:repeat(10,1fr);gap:4px;margin:12px 0}.station-strip div{padding:9px 1px;border:1px solid #bfe2cd;border-radius:4px;background:#e6f4ec;color:#176b3b;text-align:center;font:500 12px 'IBM Plex Mono',monospace}.station-strip div.stop{border-color:#f0bdb8;background:#fbe6e4;color:var(--red)}
.action-row{display:flex;flex-wrap:wrap;gap:7px}.status-line{margin:12px 0 0;font-size:15px;line-height:1.45;min-height:44px}
.sig{width:100%;border-collapse:collapse;font-size:13px}.sig th{padding:6px 0;text-align:left;color:var(--mute);font-size:12px;font-weight:600}.sig td{padding:0;border-top:1px solid var(--hair)}.sig button{display:grid;grid-template-columns:1fr 1.2fr;width:100%;padding:9px 6px;border:0;background:none;text-align:left;cursor:pointer;font:500 13px 'IBM Plex Mono',monospace;color:var(--blue)}.sig button span:first-child{color:var(--mute)}.sig button[aria-pressed=true]{background:var(--blue-soft)}.sig-note{margin-top:12px;padding:11px 14px;border-left:3px solid var(--blue);background:#f6fafe;font-size:14px;line-height:1.5}.sig-note b{display:block;color:var(--ink)}
.chart svg{display:block;width:100%;height:auto;margin-top:8px}
.visual video{display:block;width:100%;height:auto;background:#101a24;border-radius:2px}.visual-caption{margin:9px 0 0;color:var(--mute);font-size:13px;line-height:1.45}
.steps-visual{margin:0;padding:0;list-style:none}.steps-visual li{padding:15px 0;border-top:1px solid var(--hair);color:var(--ink);font-size:20px;font-weight:300;line-height:1.35}.steps-visual.panel li:first-child{border-top:0}.steps-visual span{display:block;margin-top:2px;color:var(--mute);font-size:14px;font-weight:400}
.flow{display:grid;grid-template-columns:repeat(3,1fr);width:86%}.flow div{padding:14px;border:1px solid var(--line);margin-left:-1px;background:#fff;color:var(--mute);font-size:13px}.flow b{display:block;color:var(--ink);font-size:15px}.flow .hot{border-color:#b9d4ee;background:var(--blue-soft)}

/* footer */
.site-footer{padding:28px 0;border-top:1px solid var(--ink);color:var(--mute);font-size:13px}.site-footer .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px}.site-footer .brand{font-size:14px}.footer-links{display:flex;flex-wrap:wrap;gap:18px}.footer-links a{color:var(--mute);text-decoration:none}.footer-links a:hover{color:var(--blue)}

@media(max-width:1080px){.menu{display:none}.mobile-menu{display:block;order:3}.header-row{flex-wrap:wrap;gap:12px;min-height:62px;padding-block:9px}.mobile-menu summary{cursor:pointer;padding:7px 12px;border:1px solid var(--line);border-radius:6px;font-size:14px;list-style:none}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-panel{position:absolute;left:0;right:0;top:100%;max-height:calc(100vh - 70px);overflow:auto;padding:12px 24px 20px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 24px #17222e22}.mobile-panel a{display:block;padding:8px 0;color:var(--ink);text-decoration:none}.mobile-group{margin:12px 0 2px;color:var(--mute);font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase}.article-layout{grid-template-columns:minmax(0,1fr)}.toc{display:none}}
@media(max-width:860px){.site-header{position:relative}.hero,.band-grid,.contact-grid{grid-template-columns:1fr;gap:26px}.hero{padding:36px 0}.hero h1{font-size:34px}.hero>div:first-child>p{font-size:17px}.band{padding:48px 0}.rows-section,.section,.contact{padding:56px 0}.rows-grid{grid-template-columns:1fr;gap:24px}.rows-grid h2,.section h2,.contact h2{font-size:36px}.figure-pair{grid-template-columns:1fr}.band:nth-child(even) .band-grid>:first-child{order:0}.band h2{font-size:27px}.band-visual{height:230px}.cards{grid-template-columns:1fr 1fr}.points{grid-template-columns:1fr 1fr;gap:18px 0}.points div:nth-child(odd){border-left:0;padding-left:0}.article{font-size:17px}.article h2{font-size:27px}.station-strip{grid-template-columns:repeat(5,1fr)}.bar-row{grid-template-columns:1fr;gap:3px}}
@media(max-width:520px){.wrap{width:calc(100% - 32px)}.brand span{font-size:15px}.cards,.form-row{grid-template-columns:1fr}.points{grid-template-columns:1fr}.points div{border-left:0;padding-left:0}.mobile-panel{padding-inline:16px}.panel{padding:16px}}