/* Engineering platform layer. Existing gallery and collection styles remain reusable. */
:root{--bg:#090c11;--surface:#111720;--surface-raised:#1a2431;--line:#ffffff16;--muted:#9aa7b8;--white:#f3f6fa;--accent:#70b3ff;--blue:#70b3ff;--font:Inter,'Segoe UI',Arial,sans-serif;color-scheme:dark}
html[data-theme=light]{--bg:#f2f5f9;--surface:#fff;--surface-raised:#e7eef8;--line:#112b4826;--muted:#526275;--white:#101c2b;--accent:#125fae;--blue:#125fae;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--white)}[hidden]{display:none!important}button,input,select,textarea{font-family:inherit}button,a,input,select,summary{outline-offset:5px}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--accent)}button:disabled{cursor:not-allowed;opacity:.45}input[type=range]{accent-color:var(--accent)}::selection{background:#3479bda0;color:#fff}
header.site-header{background:color-mix(in srgb,var(--bg) 90%,transparent);gap:24px}.site-header nav{gap:24px!important}.site-header nav a{font-size:12px}.site-header nav a:nth-child(2):before{display:none}.site-header .brand-name{font-weight:650;letter-spacing:3px}.apex-symbol>span{background:var(--accent)}.header-tools{gap:8px}.header-saved>span{background:var(--accent);color:var(--bg)}.global-search-trigger{color:var(--white)}
.hero{height:min(780px,calc(100svh - 88px));min-height:625px}.hero-photo{object-position:66% 55%}.hero-shade{background:linear-gradient(90deg,#040810e8 2%,#040810b8 32%,#04081015 78%),linear-gradient(0deg,#090c11e8,transparent 40%)}.hero-content{top:17%;max-width:650px}.hero h1{font-size:clamp(68px,7.4vw,110px);font-weight:450;letter-spacing:-6px;line-height:1.05;margin:28px 0 27px}.hero h1 em{color:#90c5ff;font-style:normal}.hero-kicker{font-size:9px;letter-spacing:2.1px}.live-dot{background:#70b3ff;box-shadow:0 0 0 4px #70b3ff18}.hero-content>p{max-width:370px;font-size:14px;line-height:1.9}.hero .button-primary,.button-primary,.primary{background:var(--accent);color:#081320;border-color:transparent}.hero .button-primary{background:#90c5ff;gap:21px;min-height:49px;padding:15px 20px}.button-primary:hover,.hero .button-primary:hover,.primary:hover{background:#afd5ff;color:#081320}.hero-secondary{display:none}.hero-actions{flex-wrap:wrap;gap:21px}.hero-lab-link{font-size:12px;color:#e1eaf4;display:flex;gap:14px;align-items:center;padding:12px 0;border-bottom:1px solid #ffffff50}.hero-lab-link:hover{color:#90c5ff}.hero-stats strong{font-weight:400;font-size:29px}.hero-stats small{font-size:10px}.hero-caption{font-size:10px;letter-spacing:1px}.hero-scroll{border-radius:50%;width:44px;height:44px}.collection-ticker{padding:22px 0;font-size:9px;letter-spacing:1.6px}
.explore-paths{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin:32px 0 0;border:1px solid var(--line);background:var(--surface)}.explore-paths>a{padding:29px 30px;color:var(--white);display:flex;flex-direction:column;position:relative;transition:background .25s}.explore-paths>a+a{border-left:1px solid var(--line)}.explore-paths>a:hover{background:var(--surface-raised)}.path-number{color:var(--accent);font-size:9px;letter-spacing:1.7px}.explore-paths strong{font-size:25px;letter-spacing:-.8px;font-weight:450;margin-top:15px}.explore-paths p{color:var(--muted);font-size:12px;line-height:1.7;margin:9px 0 22px}.path-bottom{font-size:10px;border-top:1px solid var(--line);padding-top:15px;display:flex;justify-content:space-between;align-items:center}.path-bottom>span{font-size:20px;color:var(--accent)}
.collection{padding-top:75px}.collection h2{font-weight:450;font-size:clamp(34px,4vw,54px);letter-spacing:-2.3px;max-width:900px}.collection-intro{line-height:1.8}.collection-filters button.active{background:var(--accent);border-color:var(--accent);color:var(--bg)}.model-card{border:1px solid var(--line);border-radius:4px;box-shadow:none;background:var(--surface);transition:border-color .25s,transform .25s}.model-card:hover{border-color:color-mix(in srgb,var(--accent) 60%,transparent);transform:translateY(-3px)}.model-image{aspect-ratio:1.68}.model-info h3{font-size:22px;letter-spacing:-.6px}.model-info small{line-height:1.8}.model-info{min-height:119px}.model-chassis{background:#090c11bc;color:#f3f6fa}.model-tag{color:#fff}.model-card:focus-within{border-color:var(--accent)}.matchup-card{background:var(--surface)}
.learning-workspace{padding:65px 0 40px;scroll-margin-top:calc(var(--header-height,88px) + 24px);border-top:1px solid var(--line);margin-top:52px}.workspace-heading{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:34px}.workspace-heading h2{font-size:clamp(38px,4.7vw,68px);font-weight:400;line-height:1.06;letter-spacing:-2.5px;margin:19px 0 0}.workspace-heading>p{font-size:13px;line-height:1.9;color:var(--muted);max-width:350px;margin:0 0 5px}.workspace-tabs{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--line);margin-bottom:26px}.workspace-tabs>button{background:transparent;border:0;border-bottom:2px solid transparent;padding:18px 20px;color:var(--muted);display:flex;align-items:center;gap:12px;border-radius:0;font-size:13px;min-height:58px}.workspace-tabs>button>small{font-size:9px;color:var(--muted);font-variant-numeric:tabular-nums}.workspace-tabs>button>span{margin-left:auto;font-size:20px}.workspace-tabs>button[aria-selected=true]{background:var(--surface);border-bottom-color:var(--accent);color:var(--white)}.workspace-tabs>button[aria-selected=true]>small{color:var(--accent)}.workspace-panel{scroll-margin-top:calc(var(--header-height,88px) + 80px);min-width:0}.workspace-loading{min-height:450px;display:flex;align-items:center;justify-content:center;gap:15px;font-size:13px;color:var(--muted);border:1px solid var(--line);background:var(--surface)}.loading-orbit{border:2px solid var(--line);border-top-color:var(--accent);width:22px;height:22px;border-radius:50%;animation:platform-spin 1s linear infinite}.workspace-error{background:var(--surface);padding:45px;text-align:center}.workspace-error p{color:var(--muted)}@keyframes platform-spin{to{transform:rotate(360deg)}}
.engineering-detail-actions{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.engineering-detail-actions button{display:flex;justify-content:space-between;gap:20px;padding:13px 20px;min-height:46px;font-size:12px}.expanded-factory-specs{margin:20px 0 30px;border:1px solid var(--line);background:var(--surface)}.expanded-factory-specs summary{padding:22px;cursor:pointer;font-size:14px}.expanded-factory-specs summary>span{font-size:10px;color:var(--muted);margin-left:16px}.expanded-factory-specs dl{padding:0 22px;display:grid;grid-template-columns:repeat(3,1fr);margin:18px 0}.expanded-factory-specs dl>div{padding:18px 16px 18px 0;border-top:1px solid var(--line);min-width:0}.expanded-factory-specs dt{color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:1px}.expanded-factory-specs dd{margin:10px 0 0;font-size:17px}.expanded-factory-specs .spec-unavailable{font-size:12px;color:var(--muted)}.spec-context{font-size:11px;line-height:1.8;color:var(--muted);padding:0 22px}.spec-source-links{display:flex;flex-wrap:wrap;gap:18px;padding:0 22px 22px;font-size:11px;color:var(--accent)}
.global-search{width:min(760px,calc(100% - 28px));max-width:760px;max-height:85svh;background:var(--bg);border:1px solid color-mix(in srgb,var(--accent) 25%,var(--line));border-radius:10px;padding:0;color:var(--white);box-shadow:0 25px 120px #0009;margin:8svh auto auto;overflow:hidden}.global-search::backdrop{background:#02060dbd;backdrop-filter:blur(10px)}.gs-top{padding:21px 25px 10px;display:flex;align-items:center;justify-content:space-between}.gs-top>.eyebrow{font-size:8px;letter-spacing:1.6px}.gs-top>button{border:1px solid var(--line);font-size:10px;padding:4px 8px;background:var(--surface);color:var(--muted);display:flex;gap:8px;align-items:center}.gs-top>button>span{font-size:18px}.gs-input-wrap{margin:8px 25px 18px;display:flex;gap:14px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:16px}.gs-input-wrap>svg{color:var(--accent)}.gs-input-wrap>input{width:100%;border:0;padding:8px 0;background:transparent;outline:0;font-size:19px;color:var(--white);min-width:0}.gs-input-wrap>input::placeholder{color:var(--muted);font-size:16px}.gs-filters{display:flex;gap:6px;padding:0 25px;overflow:auto}.gs-filters>button{font-size:10px;padding:7px 12px;border:1px solid var(--line);border-radius:20px;color:var(--muted);background:transparent;white-space:nowrap}.gs-filters>button[aria-pressed=true]{background:var(--accent);color:var(--bg);border-color:var(--accent)}.gs-status{font-size:10px;letter-spacing:.2px;color:var(--muted);margin:17px 25px 12px}#global-results{max-height:48svh;overflow-y:auto;overscroll-behavior:contain;padding:0 12px 12px}.gs-result{display:flex;text-align:left;width:100%;gap:14px;align-items:center;background:transparent;border:1px solid transparent;padding:12px;border-radius:5px;color:var(--white)}.gs-result:hover,.gs-result[aria-selected=true]{background:var(--surface-raised);border-color:var(--line)}.gs-result>img{width:66px;height:46px;object-fit:cover;border-radius:3px}.gs-result>span:nth-child(2){display:flex;flex:1;min-width:0;flex-direction:column;gap:5px}.gs-result small{font-size:8px;text-transform:uppercase;letter-spacing:1px;color:var(--accent)}.gs-result strong{font-size:13px;font-weight:550}.gs-result>span>span{font-size:10px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:550px}.gs-result>span:last-child{color:var(--accent)}.gs-topic-icon{width:66px;height:46px;border-radius:3px;display:grid;place-items:center;background:var(--surface);font-size:24px;color:var(--accent)}.gs-footer{font-size:9px;padding:16px 25px;background:var(--surface);border-top:1px solid var(--line);display:flex;justify-content:space-between;color:var(--muted);gap:12px}.gs-empty{padding:35px 20px}.gs-empty strong{font-size:16px}.gs-empty p{font-size:12px;color:var(--muted);line-height:1.8}.gs-compare{width:calc(100% - 24px);margin:0 12px 8px;padding:12px;text-align:left;border-color:var(--accent);color:var(--accent);font-size:12px}
.site-footer{display:grid;grid-template-columns:minmax(220px,1.25fr) minmax(130px,.8fr) minmax(150px,.9fr) minmax(130px,.7fr);align-items:start;gap:clamp(24px,4vw,64px);padding-top:52px;padding-bottom:30px}.footer-brand{max-width:270px}.footer-brand p{color:var(--muted);font-size:12px;line-height:1.8;margin:15px 0 10px}.footer-brand small{font-size:10px;color:var(--muted)}.footer-links{display:contents!important}.footer-group{display:flex;flex-direction:column;align-items:flex-start;gap:11px}.footer-group h2{margin:4px 0 5px;font-size:9px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted)}.footer-group a,.footer-group button{padding:0;border:0;background:transparent;color:var(--white);font-size:11px;text-align:left;line-height:1.5}.footer-group a:hover,.footer-group button:hover{color:var(--accent)}.footer-end{grid-column:1/-1;border-top:1px solid var(--line);padding-top:19px;display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--muted);font-size:10px}.footer-end a{color:var(--white)}.footer-end a:hover{color:var(--accent)}.footer-wordmark>span{color:var(--accent)}.button-link{color:var(--white);background:transparent}.button-link:hover{background:var(--surface-raised);color:var(--accent)}
@media(max-width:850px){.site-footer{grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}.footer-brand{grid-column:1/-1;max-width:420px}}
@media(max-width:520px){.site-footer{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 22px;padding-top:38px}.footer-brand{grid-column:1/-1}.footer-end{align-items:flex-start;flex-direction:column;gap:12px}}
body.workspace-visible #compare-tray{display:none!important}
.systems-library{padding:50px 0 20px;border-top:1px solid var(--line);margin-top:35px}.systems-library .compact-heading h2{font-size:32px;font-weight:450;letter-spacing:-1px;margin:13px 0 0}.systems-library>p{font-size:12px;color:var(--muted);line-height:1.9;max-width:750px}.systems-total{font-size:11px;color:var(--muted);white-space:nowrap}.systems-filters{display:flex;flex-wrap:wrap;gap:6px;margin:25px 0}.systems-filters button{padding:8px 11px;background:transparent;border:1px solid var(--line);color:var(--muted);font-size:10px;min-height:35px}.systems-filters button[aria-pressed=true]{color:var(--bg);background:var(--accent);border-color:var(--accent)}.systems-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.system-card{padding:25px 22px;text-align:left;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:5px;color:var(--white)}.system-card>.eyebrow{font-size:8px;letter-spacing:1px}.system-card h3{font-size:20px;font-weight:450;line-height:1.3;letter-spacing:-.5px;margin:16px 0 10px}.system-card p{font-size:12px;color:var(--muted);line-height:1.8;margin:0 0 25px}.system-card-bottom{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:var(--accent);border-top:1px solid var(--line);padding-top:15px;width:100%;margin-top:auto}.system-card-bottom>span{font-size:20px}.system-guide-detail{padding:10px 8px;max-width:1000px}.system-guide-detail h2{font-size:36px;letter-spacing:-1px;font-weight:450}.system-lead{font-size:15px;color:var(--muted);line-height:1.8}.system-diagram{margin:25px 0;background:var(--surface);border:1px solid var(--line);border-radius:5px;padding:15px;color:var(--accent)}.system-diagram svg{width:100%;height:auto;display:block}.system-diagram rect{fill:var(--surface-raised);stroke:var(--line)}.system-diagram .diagram-focus{stroke:var(--accent);fill:color-mix(in srgb,var(--accent) 9%,var(--surface))}.diagram-label{height:100%;display:flex;align-items:center;justify-content:center;text-align:center;font:12px var(--font);color:var(--white)}.diagram-label-focus{font-weight:600;color:var(--accent);font-size:16px}.system-diagram figcaption{font-size:9px;text-align:center;color:var(--muted);line-height:1.6}.system-guide-columns{display:grid;grid-template-columns:1.1fr 1fr;gap:35px}.system-guide-columns h3{font-size:15px;font-weight:550;margin-top:25px}.system-guide-columns p,.system-guide-columns dd{font-size:12px;color:var(--muted);line-height:1.85;margin:10px 0 18px}.system-guide-columns dt{font-size:12px;color:var(--white);margin-top:15px}.system-guide-sources{border-top:1px solid var(--line);padding-top:20px;font-size:11px;color:var(--accent);margin-top:20px}.system-empty{font-size:13px;color:var(--muted)}
@media(max-width:860px){.systems-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.systems-grid{grid-template-columns:1fr}.system-card{padding:22px}.system-guide-columns{grid-template-columns:1fr;gap:0}.system-guide-detail h2{font-size:29px}.system-diagram{padding:8px 3px}.system-diagram figcaption{padding:8px}.systems-library .compact-heading{align-items:start;gap:15px}.systems-total{font-size:9px;padding-top:5px}}
@media(min-width:1600px){.hero-content{top:17%}}
@media(max-width:1100px){.site-header{gap:16px!important}.site-header nav{gap:18px!important}.site-header .brand-name{font-size:21px}.header-tools{gap:3px}.header-divider{display:none}.explore-paths>a{padding:24px}.hero h1{font-size:85px}.hero-content{top:16%}}
@media(max-width:860px){header.site-header{height:auto;min-height:104px;flex-wrap:wrap;padding:12px 5% 0;gap:6px!important}.site-header .brand{order:0}.site-header .header-tools{order:1;margin-left:auto}.site-header nav{order:2;width:100%;height:40px;min-width:0;overflow-x:auto;justify-content:flex-start!important;gap:24px!important;padding:0!important;scrollbar-width:none}.site-header nav a{font-size:11px;min-height:40px;flex:none}.site-header nav a.active:after{bottom:0}.site-header .brand-name{font-size:20px}.site-header .brand-name small{font-size:7px}.site-header .apex-symbol{width:29px;height:31px;font-size:25px!important}body{padding-top:108px}.hero{min-height:620px;height:calc(90svh - 108px);max-height:760px}.hero-content{top:13%;left:5%}.hero h1{font-size:80px;letter-spacing:-4.5px}.hero-photo{object-position:60% center}.hero-shade{background:linear-gradient(90deg,#040810e6,#04081078 60%,#04081015),linear-gradient(0deg,#090c11ed,transparent 55%)}.hero-kicker{font-size:8px;letter-spacing:1.5px}.hero-content>p{max-width:310px;font-size:13px}.hero-bottom{bottom:28px}.hero-stats{gap:26px}.hero-stats>span+span{padding-left:26px}.hero-passion{display:none!important}.hero-caption{bottom:107px}.explore-paths strong{font-size:21px}.explore-paths p{font-size:11px}.path-bottom{font-size:9px}.workspace-heading{gap:25px}.workspace-heading>p{max-width:270px;font-size:12px}.workspace-tabs>button{padding:16px 12px;font-size:12px;gap:8px}.expanded-factory-specs dl{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.hero{height:680px;min-height:0;max-height:none}.hero-photo{object-position:61% center}.hero-content{top:12%;width:90%;max-width:400px}.hero h1{font-size:clamp(59px,15vw,80px);letter-spacing:-3.5px;margin:25px 0}.hero-content>p{max-width:290px;font-size:13px;line-height:1.8}.hero-actions{gap:14px}.hero .button-primary{font-size:11px;padding:13px 15px;min-height:45px;gap:15px}.hero-lab-link{font-size:10px;gap:8px}.hero-stats strong{font-size:25px}.hero-caption{font-size:8px;bottom:109px}.hero-caption .m-stripes{width:14px;height:9px}.hero-stats{gap:23px}.hero-stats small{font-size:9px}.hero-bottom{bottom:30px}.hero-scroll{width:36px;height:36px}.collection-ticker{gap:12px;padding:19px 0}.collection-ticker>span:first-child{font-size:12px}.collection-ticker>span:last-child{display:none}.collection-ticker>.ticker-line{width:20px}.collection-ticker>.ticker-line:nth-last-child(2){display:none}.collection-ticker>span{font-size:7px;letter-spacing:1px}.explore-paths{grid-template-columns:1fr;margin-top:22px}.explore-paths>a{padding:21px 22px;display:grid;grid-template-columns:1fr auto;column-gap:16px}.explore-paths>a+a{border-left:0;border-top:1px solid var(--line)}.path-number{grid-column:1/-1;font-size:8px}.explore-paths strong{margin-top:10px;grid-column:1;font-size:22px}.explore-paths p{grid-column:1;margin:7px 0 0;font-size:11px}.path-bottom{grid-column:2;grid-row:2/4;font-size:0;border:0;padding:0;align-self:center}.path-bottom>span{font-size:24px}.collection{padding-top:54px}.collection h2{font-size:37px;letter-spacing:-1.6px}.workspace-heading{display:block}.workspace-heading h2{font-size:44px;letter-spacing:-1.8px}.workspace-heading>p{max-width:100%;font-size:12px;margin:20px 0 0}.learning-workspace{padding-top:40px;margin-top:30px}.workspace-heading{margin-bottom:25px}.workspace-tabs{margin-bottom:18px}.workspace-tabs>button{font-size:10px;padding:14px 8px;gap:6px}.workspace-tabs>button>small{display:none}.workspace-tabs>button>span{font-size:16px}.expanded-factory-specs summary{padding:18px;font-size:13px}.expanded-factory-specs summary>span{display:block;font-size:9px;margin:8px 0 0}.expanded-factory-specs dd{font-size:14px}.expanded-factory-specs dl{padding:0 18px}.engineering-detail-actions button{font-size:11px;flex:1}.global-search{margin-top:3svh;max-height:90svh}.gs-top{padding:16px 17px 8px}.gs-input-wrap{margin:6px 17px 15px;gap:9px}.gs-input-wrap>input{font-size:16px}.gs-input-wrap>input::placeholder{font-size:12px}.gs-filters{padding:0 17px;gap:4px}.gs-filters>button{padding:7px 9px;font-size:9px}.gs-status{margin:15px 17px 10px;font-size:9px}.gs-result{padding:10px 7px;gap:10px}.gs-result>img,.gs-topic-icon{width:48px;height:40px;flex:none}.gs-result strong{font-size:11px}.gs-result>span>span{font-size:9px;max-width:210px}.gs-footer{font-size:8px;padding:13px 17px}.gs-footer>span:last-child{display:none}#global-results{max-height:56svh}.site-footer .footer-links{gap:13px!important;line-height:1.7}.workspace-loading{min-height:350px;font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.model-card:hover{transform:none}}