/* Paolo Pangallo · portfolio v4. Original implementation based on the supplied monochrome visual direction. */
:root{--ink:#141414;--ink-2:#282828;--muted:#686868;--faint:#aaa;--page:#fff;--soft:#f5f5f5;--soft-2:#efefef;--line:#e7e7e7;--line-2:#d9d9d9;--font:Inter,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;--mono:"DM Mono",ui-monospace,Consolas,monospace;--round:24px;--section-space:78px;--panel-top-gap:28px;--panel-pad-top:66px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:115px}
body{margin:0;background:var(--page);color:var(--ink);font-family:var(--font);font-size:16px;font-weight:450;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}button,a,input{ -webkit-tap-highlight-color:transparent }
button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--ink);outline-offset:4px}
img,svg{max-width:100%}svg{display:block}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{font-weight:650;letter-spacing:-.032em}b,strong{font-weight:650}
[hidden]{display:none!important}.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.wrap{width:min(1232px,calc(100% - 80px));margin-inline:auto}.section-gap{margin-top:var(--section-space)}.library-section.section-gap,.about-section.section-gap{margin-top:var(--panel-top-gap)}.dot{color:#888}.slash{color:#b2b2b2}
.skip-link{position:fixed;top:-100px;left:12px;background:var(--ink);color:#fff;z-index:999;padding:12px 24px;border-radius:999px}.skip-link:focus{top:12px}
#scroll-progress{position:fixed;z-index:300;top:0;left:0;width:0;height:2px;background:var(--ink);pointer-events:none}
/* Navigation */
.nav-shell{position:sticky;top:15px;z-index:200;width:min(1110px,calc(100% - 40px));margin:16px auto 0}
.site-nav{display:flex;align-items:center;gap:32px;justify-content:space-between;padding:8px 9px 8px 10px;border-radius:999px;background:#f2f2f2;min-height:64px}
.nav-identity{display:flex;align-items:center;gap:12px;white-space:nowrap;font-size:14px;font-weight:650;padding-left:2px}
.nav-mark{width:44px;height:44px;display:grid;place-items:center;background:var(--ink);color:#fff;font-size:17px;font-weight:700;letter-spacing:-.06em;border-radius:30%}.nav-mark span{color:#a7a7a7}
.nav-links{display:flex;align-items:center;gap:18px}.nav-links a{font-weight:600;font-size:14px;color:#4a4a4a;transition:color .15s}.nav-links a:hover{color:#000}
.nav-actions{display:flex;align-items:center;gap:8px}.nav-contact{height:44px;display:inline-flex;align-items:center;gap:18px;padding:0 23px;border-radius:999px;background:var(--ink);color:#fff;font-size:13px;font-weight:650;white-space:nowrap;transition:background .2s}.nav-contact:hover{background:#303030}
.menu-toggle{display:none;width:43px;height:43px;border:0;border-radius:50%;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px}.menu-toggle span{width:17px;height:2px;background:#141414;transition:transform .15s}.menu-toggle.open span:first-child{transform:translateY(3.5px) rotate(45deg)}.menu-toggle.open span:last-child{transform:translateY(-3.5px) rotate(-45deg)}
.mobile-menu{background:#f5f5f5;margin:8px 8px 0;border-radius:20px;padding:12px;display:grid;gap:4px;border:1px solid var(--line)}.mobile-menu a{padding:12px 18px;border-radius:12px;font-weight:600}.mobile-menu a:hover{background:#fff}
/* Buttons / type */
.btn{min-height:50px;padding:0 23px;display:inline-flex;align-items:center;justify-content:center;gap:22px;border-radius:999px;font-size:13px;font-weight:650;line-height:1.2;border:1px solid transparent;transition:background .18s,transform .18s,border-color .18s}
.btn:hover{transform:translateY(-2px)}.btn-dark{color:#fff;background:var(--ink)}.btn-dark:hover{background:#333}.btn-stroke{background:#fff;border-color:#d9d9d9}.btn-stroke:hover{background:#f7f7f7;border-color:#bfbfbf}
.eyebrow,.section-index{font-family:var(--mono);font-size:11px;color:#656565;letter-spacing:-.015em}.eyebrow{display:flex;align-items:center;gap:12px}.eyebrow-icon{background:#ededed;width:31px;height:31px;border-radius:30%;display:grid;place-items:center;color:#2d2d2d;font-size:18px}
/* Hero: rich, but not decorative */
.hero{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(460px,.96fr);gap:48px;align-items:center;padding-top:72px;padding-bottom:56px}
.hero-copy{min-width:0}.hero h1{font-size:clamp(52px,4.65vw,74px);line-height:1.07;margin:28px 0 28px;letter-spacing:-.065em}.hero h1 span{color:#666;letter-spacing:-.064em}
.lead{max-width:555px;font-size:17px;font-weight:350;line-height:1.68;color:#555}.lead strong{font-weight:650;color:var(--ink)}.hero-buttons{display:flex;gap:9px;flex-wrap:wrap;margin:32px 0 28px}
.availability{font-size:12px;color:#666;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.availability-dot{width:8px;height:8px;border:2px solid var(--ink);border-radius:50%;display:inline-block}.avail-sep{color:#c6c6c6}
/* Interactive terminal-ish architecture explorer */
.hero-stage{border-radius:26px;overflow:hidden;background:#161616;color:#fff;min-height:490px;border:1px solid #252525;display:flex;flex-direction:column}
.stage-header{display:flex;justify-content:space-between;align-items:center;padding:22px 25px;border-bottom:1px solid #303030;gap:12px}.stage-title{font-family:var(--mono);font-size:12px;font-weight:500;display:flex;align-items:center;gap:9px}.stage-square{font-size:20px;color:#c6c6c6}.stage-meta{font:10px var(--mono);display:flex;align-items:center;gap:8px;color:#b4b4b4}.stage-led{display:block;width:7px;height:7px;background:#bdbdbd;border-radius:50%}
.stage-top{padding:23px 25px 15px;display:flex;justify-content:space-between;align-items:center;gap:10px}.stage-top p{font-size:13px;font-weight:600;color:#e5e5e5}.stage-tabs{display:inline-flex;background:#2b2b2b;border-radius:999px;padding:4px;gap:3px}.stage-tab{border:0;border-radius:999px;padding:8px 11px;min-width:48px;background:transparent;color:#aaa;font-size:10px;font-weight:600}.stage-tab.active{background:#f3f3f3;color:#141414}.stage-tab:hover:not(.active){background:#404040;color:#fff}
.stage-pipeline{display:flex;align-items:center;justify-content:space-between;padding:10px 22px 20px;gap:5px}.pipeline-step{border:1px solid #373737;background:#222;color:#dedede;border-radius:13px;min-height:96px;min-width:0;flex:1;display:flex;flex-direction:column;gap:20px;justify-content:space-between;align-items:flex-start;padding:12px 10px;transition:background .15s,border-color .15s;text-align:left}.pipeline-step:hover{background:#303030}.pipeline-step.current{background:#f1f1f1;color:#141414;border-color:#f1f1f1}.step-no{font:11px var(--mono);opacity:.6}.step-name{font-size:12px;font-weight:650;line-height:1.1;overflow-wrap:anywhere}.pipeline-arrow{color:#787878;flex:0 0 9px;font:14px var(--mono)}
.stage-inspector{margin:0 24px 18px;padding:21px 22px 19px;background:#242424;border:1px solid #363636;border-radius:15px;min-height:150px}.inspector-heading{display:flex;justify-content:space-between;align-items:center;color:#adadad;font:10px var(--mono)}.inspector-icon{font-size:15px}.stage-inspector h3{margin:8px 0 5px;font-size:17px;font-weight:650;letter-spacing:-.025em}.stage-inspector p{font-size:12px;color:#c1c1c1;line-height:1.6;min-height:38px}.stage-inspector a{display:inline-block;font:10px var(--mono);color:#fff;border-bottom:1px solid #777;margin-top:11px;padding-bottom:2px}.stage-inspector a:hover{border-color:#fff}
.stage-bottom{margin-top:auto;padding:15px 25px 17px;border-top:1px solid #303030;display:flex;justify-content:space-between;gap:15px;font:9px var(--mono);color:#858585;letter-spacing:.025em}
/* Summary strip */
.snapshot-bar{display:grid;grid-template-columns:repeat(4,1fr);padding:20px 0 19px;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.snapshot-bar>div{display:grid;grid-template-columns:auto 1fr;column-gap:13px;align-items:baseline;padding:0 28px;border-right:1px solid var(--line)}.snapshot-bar>div:first-child{padding-left:3px}.snapshot-bar>div:last-child{border-right:0}.snapshot-bar strong{font-size:28px;font-weight:650;letter-spacing:-.07em;grid-row:span 2;line-height:1.2}.snapshot-bar span{font-size:11px;color:#555;font-weight:600}.snapshot-bar p{font-size:11px;color:#898989;margin-top:1px}
/* Section headings */
.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:50px;margin-bottom:34px}.section-heading h2,.about-left h2{font-size:clamp(39px,4vw,60px);line-height:1.09;margin-top:21px;letter-spacing:-.052em}.section-heading>p{max-width:405px;font-size:15px;line-height:1.7;color:#666;font-weight:400;margin-bottom:5px}.section-index span{color:#b6b6b6}
/* Editorial case studies */
.case-row{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);align-items:start;border-top:1px solid var(--line-2);padding:34px 0 40px;gap:42px}.case-row:last-child{border-bottom:1px solid var(--line-2)}.case-reverse .case-art{order:2}.case-reverse .case-content{order:1}
.case-art{background:#f2f2f2;border-radius:24px;min-height:430px;padding:28px;display:flex;flex-direction:column;overflow:hidden}.case-art-mtb{background:#f4f4f4}.case-art-rl{background:#ededed}
.art-bar,.art-caption{font:10px var(--mono);color:#737373;display:flex;justify-content:space-between;gap:15px;align-items:center}.art-title{font-size:clamp(24px,2.3vw,34px);font-weight:650;line-height:1.14;letter-spacing:-.05em;max-width:430px;margin-top:28px;color:#282828}.art-caption{margin-top:auto;padding-top:22px;line-height:1.5}
.mcp-visual{display:flex;align-items:center;justify-content:center;gap:5px;margin:40px auto 32px;width:100%}.mcp-node{background:#fff;border:1px solid #ddd;border-radius:16px;width:30%;min-height:164px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:7px;padding:11px 6px;text-align:center}.mcp-node .node-symbol{font-size:31px;width:54px;height:54px;background:#f1f1f1;border-radius:16px;display:grid;place-items:center;margin-bottom:7px}.mcp-node>span:not(.node-symbol){font:8px var(--mono);color:#888}.mcp-node strong{font-size:13px;letter-spacing:-.025em}.mcp-agent{background:#191919;color:#fff;border-color:#191919}.mcp-agent .node-symbol{background:#363636;color:#fff}.mcp-agent>span:not(.node-symbol){color:#bbb}.flow-line{display:flex;align-items:center;color:#777;font-size:19px}.art-subsystem{display:flex;justify-content:center;gap:6px;flex-wrap:wrap}.art-subsystem span{font:9px var(--mono);border:1px solid #d2d2d2;border-radius:999px;padding:8px 11px;background:#f8f8f8;color:#555}
.mtb-art-diagram{width:100%;max-width:550px;height:auto;max-height:250px;margin:auto 0;align-self:center}.case-art-mtb .art-title{margin-bottom:15px}
.rl-visual{display:flex;gap:44px;justify-content:center;align-items:center;margin:auto 0}.rl-board{flex:0 0 215px;height:215px;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);padding:8px;border:3px solid #262626;border-radius:14px;background:#262626;gap:4px}.rl-board span{display:grid;place-items:center;background:#e1e1e1;border-radius:5px;font-size:24px}.rl-board span:nth-child(4n+1),.rl-board span:nth-child(4n+3){background:#f6f6f6}.rl-board span:empty:after{content:'·';color:#b6b6b6}.rl-methods{display:flex;flex-direction:column;gap:10px;align-items:flex-start}.rl-methods>span:not(.method-line){font:11px var(--mono);background:#fff;border-radius:999px;padding:8px 13px;border:1px solid #ddd}.rl-methods .method-line{width:1px;height:11px;background:#999;margin-left:28px}
.case-content{display:flex;flex-direction:column;padding:13px 0 0}.case-number{display:flex;justify-content:space-between;align-items:center;gap:16px;font:11px var(--mono);color:#888}.case-status{background:var(--soft);padding:8px 11px;border-radius:999px;white-space:nowrap}.case-content h3{font-size:clamp(34px,3.4vw,53px);line-height:1.08;letter-spacing:-.055em;margin:23px 0 15px}.case-summary{font-size:17px;font-weight:350;line-height:1.56;color:#545454;max-width:490px;margin-bottom:16px}.case-facts{margin:0;border-top:1px solid var(--line)}.case-facts>div{display:grid;grid-template-columns:96px 1fr;gap:20px;padding:12px 0;border-bottom:1px solid var(--line)}.case-facts dt{font:11px var(--mono);color:#777;padding-top:2px}.case-facts dd{margin:0;font-size:12px;line-height:1.5;color:#404040}.case-details{border-bottom:1px solid var(--line);margin-bottom:18px}.case-details summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:600;padding:14px 0}.case-details summary::-webkit-details-marker{display:none}.case-details summary span{border-radius:50%;background:#efefef;width:25px;height:25px;display:grid;place-items:center;font-size:18px;font-weight:400}.case-details[open] summary span{transform:rotate(45deg)}.case-detail-body{font-size:12px;color:#666;line-height:1.7;padding:0 0 16px}.case-link{margin-top:auto;align-self:flex-start;display:inline-flex;align-items:center;justify-content:space-between;gap:34px;background:var(--ink);color:#fff;border-radius:999px;padding:14px 20px;font-size:12px;font-weight:600;transition:background .16s}.case-link:hover{background:#333}
/* Directory */
.library-section{background:#f6f6f6;padding:var(--panel-pad-top) 0 78px}.project-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:10px}.project-filters{display:flex;align-items:center;gap:7px;flex-wrap:wrap}.project-filter{border:1px solid transparent;border-radius:999px;background:#e9e9e9;color:#494949;font-size:12px;font-weight:600;padding:10px 17px;min-height:43px}.project-filter:hover{background:#dedede}.project-filter.selected{background:#171717;color:#fff}.project-filter span{margin-left:5px;opacity:.65}
.search-field{display:flex;align-items:center;gap:10px;background:#fff;border-radius:999px;padding:0 16px;border:1px solid #e5e5e5;min-height:44px;width:292px;max-width:100%;color:#858585}.search-field:focus-within{outline:2px solid #222}.search-field input{border:0;outline:0!important;min-width:0;width:100%;height:38px;font-size:12px;background:transparent;color:#141414}.search-field input::placeholder{color:#929292}.library-count{font:11px var(--mono);color:#898989;text-align:right;margin:16px 0 18px}
.library-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.library-card{min-height:235px;background:#fff;border:1px solid #ededed;border-radius:22px;display:flex;flex-direction:column;padding:22px 20px 19px;transition:border-color .15s,transform .15s}.library-card:hover{border-color:#c9c9c9;transform:translateY(-3px)}.library-card-top{display:flex;justify-content:space-between;align-items:start;gap:10px;margin-bottom:29px}.library-icon{width:45px;height:45px;border-radius:30%;display:grid;place-items:center;background:#f0f0f0;color:#222;font:20px var(--mono)}.library-kind{font:10px var(--mono);color:#818181;text-align:right}.library-card h3{display:flex;justify-content:space-between;gap:10px;font-size:17px;line-height:1.2;letter-spacing:-.03em;margin-bottom:10px}.library-card h3 span{font-size:16px;font-weight:400}.library-card p{font-size:13px;color:#777;line-height:1.55;margin-bottom:24px}.library-stack{font:10px var(--mono);color:#666;margin-top:auto;border-top:1px solid #eee;padding-top:15px}.empty-state{text-align:center;color:#666;background:white;padding:38px;border-radius:20px}.library-more{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:25px;font-size:12px;color:#868686}.underlined{font-weight:600;color:#252525;border-bottom:1px solid #444;padding-bottom:2px}
/* Working principles */
.principles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.principle{padding:25px 26px 27px;border:1px solid var(--line);border-radius:24px;min-height:285px;display:flex;flex-direction:column}.principle-index{font:11px var(--mono);color:#888}.principle-icon{font-size:38px;margin:28px 0 18px;line-height:1}.principle h3{font-size:23px;line-height:1.22;letter-spacing:-.036em;margin-bottom:12px}.principle p{font-size:14px;color:#666;line-height:1.6;margin-bottom:20px}.principle a{margin-top:auto;font-size:12px;font-weight:600;text-decoration:underline;text-underline-offset:4px}
.toolkit{display:grid;grid-template-columns:1fr 1.5fr;gap:72px;margin-top:66px;padding-top:38px;border-top:1px solid var(--line)}.toolkit-intro h3{font-size:43px;letter-spacing:-.05em;margin:17px 0 13px}.toolkit-intro p{max-width:375px;font-size:14px;color:#777;line-height:1.6}.skill-groups{display:grid;gap:22px}.skill-group{display:grid;grid-template-columns:130px 1fr;gap:12px;align-items:start;padding-bottom:20px;border-bottom:1px solid var(--line)}.skill-group h4{font-size:12px;letter-spacing:0;padding-top:10px}.skill-tags{display:flex;gap:7px;flex-wrap:wrap}.skill-tags span{font-size:11px;border-radius:999px;background:#f3f3f3;color:#555;padding:8px 12px;font-weight:500}
/* About */
.about-section{background:#f7f7f7;padding:var(--panel-pad-top) 0 78px}.about-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:66px}.about-left h2{margin-bottom:25px}.about-left>p{font-size:16px;font-weight:350;color:#666;line-height:1.75;max-width:460px;margin-bottom:16px}.about-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:33px}.about-right{background:#fff;border-radius:24px;padding:22px 30px 6px}.about-photo{display:flex;align-items:center;gap:25px;border-bottom:1px solid var(--line);padding:4px 0 28px}.about-photo img{width:136px;height:136px;flex-shrink:0;border-radius:22px;object-fit:cover;background:#eee}.small-overline{font:10px var(--mono);color:#888}.about-photo h3{font-size:23px;margin:5px 0 3px}.about-photo p{font-size:12px;color:#777}.photo-place{display:inline-block;background:#f4f4f4;padding:6px 10px;border-radius:999px;font-size:10px;color:#555;margin-top:12px}.background-list>div{display:grid;grid-template-columns:110px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.background-list>div:last-child{border-bottom:0}.background-list>div>span{font:10px var(--mono);color:#888;padding-top:3px}.background-list strong{font-size:14px}.background-list p{color:#777;font-size:12px;line-height:1.5;margin-top:4px}
/* Inverse footer */
.site-footer{background:#141414;color:#fff;border-radius:28px 28px 0 0;padding:38px 0 26px}.footer-top{display:flex;justify-content:space-between;align-items:center;font:11px var(--mono);color:#aaa}.footer-top a:hover{color:#fff}.footer-main{display:flex;align-items:end;justify-content:space-between;gap:50px;padding:73px 0 79px}.footer-kicker{font-size:14px;color:#c9c9c9;margin-bottom:22px}.footer-main h2{font-size:clamp(55px,6vw,86px);line-height:1.02;letter-spacing:-.064em}.footer-main h2 span{color:#999}.footer-main>div:first-child>p:not(.footer-kicker){max-width:570px;color:#b9b9b9;font-size:16px;font-weight:350;line-height:1.6;margin-top:20px}.footer-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.btn-white{background:#fff;color:#141414}.btn-white:hover{background:#e8e8e8}.btn-black-outline{color:#fff;background:transparent;border-color:#636363}.btn-black-outline:hover{background:#303030}.footer-mark{font-size:clamp(110px,20vw,270px);letter-spacing:-.16em;line-height:.8;font-weight:650;color:#333;user-select:none;padding-right:45px}.footer-bottom{border-top:1px solid #333;padding-top:23px;display:flex;justify-content:space-between;gap:22px;flex-wrap:wrap;color:#999;font:11px var(--mono)}
/* Responsive */
@media(max-width:1190px){.wrap{width:min(1140px,calc(100% - 56px))}.hero{gap:27px;grid-template-columns:minmax(0,1fr) minmax(440px,.97fr)}.hero h1{font-size:clamp(50px,4.8vw,65px)}.case-row{gap:42px}.case-art{padding:22px;min-height:450px}.library-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.library-card{padding:20px 16px}.mcp-node strong{font-size:11px}.art-subsystem span{padding:7px 8px}.rl-visual{gap:18px}.rl-board{flex-basis:185px;height:185px}}
@media(max-width:960px){:root{--section-space:74px;--panel-top-gap:24px;--panel-pad-top:58px}.nav-shell{width:calc(100% - 32px)}.nav-links{gap:15px}.site-nav{gap:14px}.nav-name{display:none}.hero{grid-template-columns:1fr;gap:38px;padding-top:68px}.hero-copy{max-width:780px}.hero h1{font-size:clamp(57px,7.4vw,84px)}.hero-stage{width:min(100%,710px)}.snapshot-bar>div{padding:0 14px}.section-gap{margin-top:var(--section-space)}.case-row{grid-template-columns:1fr;gap:25px;padding:29px 0 34px}.case-reverse .case-art,.case-reverse .case-content{order:initial}.case-art{min-height:390px;max-height:none}.case-content{padding:0 8px 3px}.case-summary{max-width:670px}.case-facts{max-width:700px}.case-link{margin-top:15px}.library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.library-card{padding:23px;min-height:245px}.principles{gap:10px}.principle{padding:24px 18px}.principle h3{font-size:21px}.toolkit{gap:45px}.about-layout{gap:40px}.footer-mark{padding-right:15px}}
@media(max-width:800px){.nav-links{display:none}.menu-toggle{display:flex}.nav-name{display:inline}.nav-shell{width:min(640px,calc(100% - 24px));top:10px;margin-top:10px}.hero{padding-top:72px}.section-heading{align-items:flex-start;flex-direction:column;gap:15px}.section-heading>p{max-width:600px}.snapshot-bar{grid-template-columns:repeat(2,1fr);row-gap:22px}.snapshot-bar>div:nth-child(2){border-right:0}.snapshot-bar>div:nth-child(3){padding-left:3px}.principles{grid-template-columns:1fr}.principle{min-height:auto;padding:27px}.principle-icon{margin:16px 0}.principle p{max-width:620px}.principle a{margin-top:13px}.toolkit{grid-template-columns:1fr;gap:28px}.about-layout{grid-template-columns:1fr;gap:32px}.about-left>p{max-width:700px}.footer-main{padding:62px 0 70px}.footer-mark{display:none}}
@media(max-width:600px){:root{--section-space:58px;--panel-top-gap:18px;--panel-pad-top:50px}.wrap{width:calc(100% - 36px)}.nav-shell{width:calc(100% - 24px)}.site-nav{min-height:58px;padding:6px}.nav-identity{font-size:12px;gap:8px}.nav-mark{width:39px;height:39px;font-size:15px}.nav-contact{height:40px;padding:0 15px;font-size:12px;gap:8px}.menu-toggle{width:40px;height:40px}.hero{padding-top:54px;padding-bottom:46px;gap:30px}.hero h1{font-size:clamp(45px,10vw,65px);line-height:1.09;margin:23px 0}.lead{font-size:15px;line-height:1.66}.hero-buttons{margin-top:26px}.btn{min-height:47px;padding:0 18px;font-size:12px;gap:14px}.availability{font-size:11px;gap:7px}.hero-stage{min-height:444px;border-radius:20px}.stage-header{padding:16px}.stage-top{padding:19px 16px 11px;flex-wrap:wrap}.stage-top p{font-size:12px}.stage-tabs{margin-left:auto}.stage-pipeline{padding:8px 13px 16px;gap:3px}.pipeline-step{min-height:85px;padding:9px 6px;gap:16px;border-radius:10px}.step-name{font-size:10px}.step-no{font-size:9px}.pipeline-arrow{flex-basis:6px;font-size:11px}.stage-inspector{margin:0 14px 12px;padding:15px;min-height:159px}.stage-inspector h3{font-size:15px}.stage-inspector p{font-size:11px}.stage-bottom{padding:13px 15px;font-size:8px}.snapshot-bar{padding:19px 0;row-gap:25px}.snapshot-bar>div{grid-template-columns:auto 1fr;padding:0 12px;gap:8px}.snapshot-bar strong{font-size:22px}.snapshot-bar span,.snapshot-bar p{font-size:9px}.section-gap{margin-top:var(--section-space)}.section-heading{margin-bottom:24px}.section-heading h2,.about-left h2{font-size:clamp(38px,9vw,51px);margin-top:16px}.section-heading>p{font-size:14px}.case-row{gap:20px;padding:22px 0 28px}.case-art{min-height:0;padding:18px;border-radius:20px}.art-title{font-size:clamp(25px,6.5vw,32px);margin-top:22px}.art-bar,.art-caption{font-size:9px}.mcp-visual{gap:3px;margin:39px auto 26px}.mcp-node{min-height:126px;border-radius:12px;width:31%;gap:5px;padding:8px 2px}.mcp-node .node-symbol{width:34px;height:34px;border-radius:10px;font-size:20px;margin-bottom:6px}.mcp-node>span:not(.node-symbol){font-size:6px}.mcp-node strong{font-size:9px}.flow-line{font-size:14px}.art-subsystem span{font-size:7px;padding:6px 8px}.mtb-art-diagram{min-height:150px}.rl-visual{gap:14px;justify-content:space-around}.rl-board{flex-basis:160px;height:160px}.rl-board span{font-size:20px}.rl-methods{gap:7px}.rl-methods>span:not(.method-line){font-size:8px;padding:7px 8px}.rl-methods .method-line{height:7px}.case-number{font-size:9px}.case-status{padding:6px 9px}.case-content h3{font-size:clamp(32px,8vw,44px);margin:17px 0 12px}.case-summary{font-size:15px}.case-facts>div{grid-template-columns:76px 1fr;gap:14px}.case-facts dt{font-size:10px}.case-facts dd{font-size:12px}.library-section{padding:var(--panel-pad-top) 0 62px}.project-toolbar{flex-direction:column;align-items:stretch}.project-filters{gap:6px}.project-filter{font-size:11px;min-height:39px;padding:7px 12px}.search-field{width:100%}.library-grid{grid-template-columns:1fr;gap:11px}.library-card{min-height:190px}.library-card-top{margin-bottom:19px}.library-more{flex-direction:column;align-items:flex-start}.toolkit{margin-top:47px;padding-top:32px}.skill-group{grid-template-columns:1fr;gap:6px}.skill-group h4{padding-top:0}.about-section{padding:var(--panel-pad-top) 0 62px}.about-right{padding:17px 19px 4px}.about-photo{gap:16px}.about-photo img{width:98px;height:98px}.about-photo h3{font-size:19px}.background-list>div{grid-template-columns:93px 1fr;gap:13px}.background-list strong{font-size:12px}.background-list p{font-size:11px}.site-footer{border-radius:20px 20px 0 0}.footer-main{padding:52px 0 64px}.footer-main h2{font-size:clamp(44px,10vw,69px)}.footer-main>div:first-child>p:not(.footer-kicker){font-size:14px}.footer-bottom{font-size:10px}}
@media(max-width:380px){.nav-name{display:none}.hero h1{font-size:43px}.stage-top{gap:7px}.stage-tabs{width:100%;justify-content:space-between}.stage-tab{flex:1}.stage-bottom span:last-child{display:none}.rl-board{flex-basis:132px;height:132px}.rl-methods>span:not(.method-line){font-size:7px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}.btn:hover,.library-card:hover{transform:none!important}}

/* V4 motion layer: transforms/opacity only, no decorative effects. */
@media(prefers-reduced-motion:no-preference) {
  @keyframes welcome-rise {from{opacity:0;transform:translate3d(0,18px,0)}to{opacity:1;transform:translate3d(0,0,0)}}
  @keyframes architecture-appear {from{opacity:0;transform:translate3d(0,8px,0)}to{opacity:1;transform:translate3d(0,0,0)}}
  @keyframes graph-appear {from{opacity:0;transform:scale(.97)}to{opacity:1;transform:scale(1)}}
  @keyframes reveal-flow {from{opacity:.15;transform:translate3d(-5px,0,0)}to{opacity:1;transform:translate3d(0,0,0)}}
  .motion-ready .hero-copy{animation:welcome-rise .62s cubic-bezier(.22,1,.36,1) both}
  .motion-ready .hero-stage{animation:welcome-rise .72s .12s cubic-bezier(.22,1,.36,1) both}
  .motion-ready .reveal-on-scroll {
    opacity:0;transform:translate3d(0,22px,0);
    transition:opacity .66s cubic-bezier(.22,1,.36,1),transform .66s cubic-bezier(.22,1,.36,1);
    transition-delay:var(--reveal-delay,0ms)
  }
  .motion-ready .reveal-on-scroll.is-visible{opacity:1;transform:translate3d(0,0,0)}
  .motion-ready .case-art-mcp.is-visible .mcp-node{animation:architecture-appear .48s cubic-bezier(.22,1,.36,1) both}
  .motion-ready .case-art-mcp.is-visible .mcp-node:nth-of-type(3){animation-delay:90ms}
  .motion-ready .case-art-mcp.is-visible .mcp-node:nth-of-type(5){animation-delay:180ms}
  .motion-ready .case-art-mcp.is-visible .flow-line{animation:reveal-flow .46s .1s ease-out both}
  .motion-ready .case-art-mtb.is-visible .mtb-art-diagram{transform-origin:center;animation:graph-appear .72s .12s ease-out both}
  .motion-ready .case-art-rl.is-visible .rl-board{animation:graph-appear .65s .08s ease-out both}
  .case-details[open] .case-detail-body{animation:welcome-rise .24s ease-out both}
}
@media(hover:hover) and (pointer:fine){
  .library-card{transition:transform .3s cubic-bezier(.22,1,.36,1),border-color .2s,background-color .2s}
  .library-card:hover{transform:translate3d(0,-5px,0);border-color:#bcbcbc}
  .library-card h3 span,.case-link span,.btn>span{display:inline-block;transition:transform .24s cubic-bezier(.22,1,.36,1)}
  .library-card:hover h3 span,.case-link:hover span,.btn:hover>span{transform:translate3d(3px,-2px,0)}
  .principle{transition:background-color .24s,border-color .24s}
  .principle:hover{background-color:#f8f8f8;border-color:#d8d8d8}
  .skill-tags span{transition:background-color .2s,color .2s}
  .skill-tags span:hover{background-color:#e8e8e8;color:#141414}
  .pipeline-step{transition:background-color .25s,border-color .25s,transform .25s}
  .pipeline-step:hover{transform:translateY(-2px)}
}
.nav-links a{position:relative}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-7px;height:2px;width:100%;
  background:var(--ink);transform:scaleX(0);transform-origin:left center;transition:transform .22s ease
}
.nav-links a.is-current::after,.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-current{color:var(--ink)}
.case-details summary span{transition:transform .2s ease,background-color .2s ease}
#scroll-progress{width:100%;transform:scaleX(0);transform-origin:left center}
@media(prefers-reduced-motion:reduce){
  .motion-ready .reveal-on-scroll,.motion-ready .reveal-on-scroll.is-visible{opacity:1!important;transform:none!important;transition:none!important}
  .nav-links a::after,.case-details summary span{transition:none!important}
}


/* V5 / technical notebooks: meaningful interaction, strictly monochrome. */
.decision-lab{margin:20px 0 15px;padding:17px;background:#f5f5f5;border:1px solid #e7e7e7;border-radius:20px}
.decision-lab-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:15px}
.decision-kicker{font-family:var(--mono);font-size:10px;font-weight:500;color:#404040}
.decision-hint{font-size:11px;color:#686868}
.decision-tabs{display:flex;gap:5px;padding:4px;background:#e9e9e9;border-radius:999px;max-width:100%}
.decision-tab{appearance:none;flex:1;min-width:0;min-height:39px;padding:8px 10px;border:0;border-radius:999px;background:transparent;color:#4c4c4c;font-size:12px;font-weight:650;cursor:pointer;transition:background-color .2s,color .2s}
.decision-tab.selected{background:#141414;color:#fff}
.decision-tab:not(.selected):hover{background:#fff}
.decision-tab:focus-visible{outline:2px solid #141414;outline-offset:2px}
.decision-output{padding:17px 4px 2px;min-height:135px}
.decision-label{font-family:var(--mono);font-size:10px;font-weight:500;color:#686868;margin:0 0 11px}
.decision-title{font-size:clamp(18px,2vw,21px);line-height:1.25;font-weight:650;margin:0 0 9px}
.decision-description{font-size:13px;line-height:1.6;color:#555;margin:0 0 15px}
.decision-source{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:650;border-bottom:1px solid currentColor;text-decoration:none;padding-bottom:3px}
.decision-source:hover{color:#555}
.hero-buttons .btn{min-height:48px}
@media(max-width:600px){
 .decision-lab{margin-top:23px;padding:15px;border-radius:17px}
 .decision-hint{font-size:10px}
 .decision-tab{font-size:11px;min-height:42px}
 .decision-output{min-height:190px}
 .footer-buttons .btn{min-height:46px}
}
@media(prefers-reduced-motion:reduce){.decision-tab{transition:none!important}}


/* v6: keyboard-friendly navigation and legible compact layouts. */
.nav-links a.is-current{color:#111;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:7px}
.mobile-menu a.is-current{background:#fff;color:#111}
.contact-address{display:inline-block;margin-top:19px;color:#fff;font-size:clamp(15px,1.7vw,21px);font-weight:600;text-decoration:underline;text-decoration-color:#777;text-underline-offset:6px;overflow-wrap:anywhere}
.contact-address:hover{text-decoration-color:#fff}
.hero-stage :is(button,a):focus-visible,.site-footer a:focus-visible{outline-color:#fff}
.mtb-mobile-flow{display:none}
.snapshot-bar p,.library-count,.library-kind,.principle-index,.case-number{color:#666}
@media(max-width:960px){
 .stage-meta,.stage-inspector a,.inspector-heading,.stage-bottom{font-size:11px}
 .snapshot-bar span,.snapshot-bar p{font-size:12px}
 .case-facts dd,.case-detail-body{font-size:14px}
 .case-facts dt,.case-number{font-size:12px}
 .art-bar,.art-caption,.art-subsystem span{font-size:11px}
 .library-kind,.library-stack{font-size:12px}
 .background-list p,.background-list>div>span{font-size:13px}
}
@media(max-width:600px){
 .eyebrow,.section-index{font-size:12px}
 .stage-meta{font-size:11px}
 .stage-top p{font-size:13px}
 .stage-tab{font-size:12px;min-height:38px;padding:9px 10px}
 .pipeline-step{min-height:92px;gap:14px;padding:10px 7px}
 .step-name{font-size:12px}
 .step-no{font-size:11px}
 .stage-inspector h3{font-size:16px}
 .stage-inspector p{font-size:13px;min-height:auto}
 .stage-inspector a{font-size:12px}
 .stage-bottom{font-size:11px}
 .stage-bottom span:last-child{display:none}
 .snapshot-bar span,.snapshot-bar p{font-size:12px}
 .case-art{min-height:0;max-height:none}
 .art-bar,.art-caption{font-size:11px}
 .art-subsystem span{font-size:10px}
 .mcp-visual{margin:30px auto 24px}
 .mcp-node{min-height:142px;gap:6px;padding:9px 4px}
 .mcp-node>span:not(.node-symbol){font-size:10px;line-height:1.3;overflow-wrap:anywhere}
 .mcp-node strong{font-size:12px;overflow-wrap:anywhere}
 .mcp-node .node-symbol{font-size:23px}
 .mtb-art-diagram{display:none}
 .mtb-mobile-flow{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:auto 0 24px}
 .mtb-mobile-flow span{display:grid;place-items:center;min-height:48px;padding:9px;border:1px solid #d4d4d4;border-radius:10px;background:#fff;text-align:center;font-size:12px;font-weight:600;line-height:1.35}
 .mtb-mobile-flow span:last-child{grid-column:1/-1;background:#242424;color:#fff;border-color:#242424}
 .rl-visual{flex-direction:column;gap:18px}
 .rl-board{flex:0 0 auto;width:170px;height:170px}
 .rl-methods{flex-direction:row;flex-wrap:wrap;justify-content:center;gap:7px}
 .rl-methods .method-line{display:none}
 .rl-methods>span:not(.method-line){font-size:11px;padding:8px 10px}
 .case-number,.case-facts dt{font-size:11px}
 .case-facts dd,.case-detail-body{font-size:14px}
 .case-details summary{font-size:14px}
 .project-filter{font-size:13px;min-height:44px}
 .search-field input{font-size:14px}
 .library-count,.library-kind,.library-stack{font-size:12px}
 .library-more{font-size:13px}
 .decision-kicker,.decision-hint,.decision-label{font-size:11px}
 .decision-tab{font-size:12px}
 .decision-description{font-size:14px}
 .small-overline,.photo-place{font-size:11px}
 .background-list>div>span,.background-list p{font-size:13px}
 .about-photo p{font-size:13px}
 .footer-bottom,.footer-top{font-size:12px}
}
@media(max-width:380px){
 .stage-tab{padding:8px 5px}
 .mcp-node strong{font-size:11px}
 .mcp-node>span:not(.node-symbol){font-size:10px}
 .rl-board{width:158px;height:158px}
}

/* v8 — code-backed evidence examples inside existing engineering notebooks. */
.decision-example{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:10px;margin:12px 0 16px;padding:14px;border:1px solid #dcdcdc;border-radius:12px;background:#fff}
.decision-example[hidden]{display:none!important}
.decision-example>div{min-width:0;display:flex;flex-direction:column;gap:6px}
.decision-example-label{font-family:var(--mono);font-size:10px;font-weight:500;color:#666;letter-spacing:.02em}
.decision-example code{font-family:var(--mono);font-size:11px;line-height:1.5;color:#1b1b1b;white-space:normal;overflow-wrap:anywhere}
.decision-example-arrow{color:#8a8a8a;font-size:18px;line-height:1}
@media(max-width:600px){
  .decision-example{grid-template-columns:1fr;gap:8px;padding:12px}
  .decision-example-arrow{transform:rotate(90deg);font-size:15px}
  .decision-example-label{font-size:11px}
  .decision-example code{font-size:12px}
}

/* v8 brand — app-icon monogram, shared by navigation, footer and favicon. */
.nav-mark{background:#fff;border:1px solid #dadada;overflow:hidden;padding:0;flex-shrink:0}
.nav-mark img{display:block;width:100%;height:100%;object-fit:contain}
.footer-mark{font-size:initial;letter-spacing:normal;line-height:normal;color:inherit;padding-right:0}
.footer-mark img{display:block;width:clamp(110px,13vw,170px);height:auto;aspect-ratio:1}
@media(max-width:600px){
 .nav-mark{width:39px;height:39px}
}

/* v9 | Personal hero, profile, and standalone architecture explorer */
.hero{grid-template-columns:minmax(0,1.12fr) minmax(340px,.88fr);gap:clamp(26px,4vw,58px);align-items:center;padding:66px 0 43px}
.hero h1{font-size:clamp(50px,5.2vw,74px);line-height:1.06;margin:23px 0 13px;letter-spacing:-.066em}
.hero h1 span{color:#191919;letter-spacing:inherit}
.hero-statement{font-size:clamp(24px,2.45vw,34px);font-weight:650;line-height:1.16;letter-spacing:-.052em;color:#626262;margin-bottom:19px}
.hero-eyebrow{font-size:12px;flex-wrap:wrap}
.hero .lead{font-size:15px;line-height:1.7;font-weight:400}
.hero-specialties{display:flex;flex-wrap:wrap;gap:7px;list-style:none;padding:0;margin:23px 0 0}
.hero-specialties li{border:1px solid #dedede;border-radius:999px;background:#f8f8f8;padding:9px 11px;font-size:12px;font-weight:600}
.hero-buttons{align-items:center;gap:8px;margin:25px 0 17px}
.hero-email{min-height:48px;display:inline-flex;align-items:center;padding:0 10px;font-size:13px;font-weight:600;text-decoration:underline;text-underline-offset:4px}
.hero-featured{display:flex;flex-wrap:wrap;gap:7px;font-size:12px;line-height:1.6;color:#666}
.hero-featured a{text-decoration:underline;text-decoration-color:#bdbdbd;text-underline-offset:4px;font-weight:600;color:#333}
.profile-card{min-width:0;border:1px solid #e3e3e3;background:#f4f4f4;border-radius:24px;padding:22px 23px 18px}
.profile-card-label,.profile-kicker{font:10px var(--mono);color:#686868}
.profile-card-label{padding-bottom:16px;border-bottom:1px solid #dcdcdc}
.profile-card-main{display:grid;grid-template-columns:143px minmax(0,1fr);align-items:center;gap:18px;padding:22px 0}
.profile-card-main img{display:block;width:143px;height:143px;border-radius:20px;object-fit:cover;border:5px solid #fff;background:#ddd}
.profile-card-main h2{font-size:clamp(23px,2.25vw,30px);line-height:1.13;letter-spacing:-.052em;margin:10px 0 8px}
.profile-card-main p{font-size:12px;line-height:1.58;color:#666}
.profile-facts{margin:0;border-top:1px solid #dedede}
.profile-facts>div{display:grid;grid-template-columns:82px minmax(0,1fr);gap:10px;padding:10px 0;border-bottom:1px solid #dedede}
.profile-facts dt{font:10px var(--mono);color:#757575}
.profile-facts dd{font-size:12px;font-weight:600;margin:0}
.profile-status{display:flex;gap:9px;align-items:center;font-size:12px;font-weight:600;margin-top:17px;color:#333}
.profile-status .availability-dot{flex-shrink:0}
.explorer-section{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:clamp(26px,5vw,72px);align-items:center;border-top:1px solid var(--line-2);padding-top:36px;margin-top:25px}
.explorer-intro{max-width:370px}
.explorer-intro h2{font-size:clamp(33px,3.45vw,49px);line-height:1.12;letter-spacing:-.053em;margin:18px 0 15px}
.explorer-intro p{font-size:15px;line-height:1.72;color:#666;margin-bottom:21px}
.explorer-intro .underlined{font-size:13px}
.explorer-section .hero-stage{min-height:390px;border-radius:22px}
.explorer-section .stage-header{padding:16px 21px}
.explorer-section .stage-top{padding:18px 21px 10px}
.explorer-section .stage-pipeline{padding:8px 19px 15px}
.explorer-section .pipeline-step{min-height:80px;gap:12px}
.explorer-section .stage-inspector{margin:0 20px 12px;padding:16px 18px;min-height:116px}
.explorer-section .stage-bottom{padding:10px 21px 13px}
.feature-section.section-gap{margin-top:64px}
@media(prefers-reduced-motion:no-preference){
 .motion-ready .profile-card{animation:welcome-rise .75s .12s cubic-bezier(.22,1,.36,1) both}
 .motion-ready .hero-stage{animation:none}
}
@media(max-width:1160px){
 .hero{grid-template-columns:minmax(0,1.1fr) minmax(315px,.9fr);gap:27px}
 .hero h1{font-size:clamp(48px,5.1vw,63px)}
 .profile-card{padding:18px}
 .profile-card-main{grid-template-columns:110px 1fr;gap:13px}
 .profile-card-main img{width:110px;height:110px}
 .profile-card-main h2{font-size:23px}
 .explorer-section{grid-template-columns:minmax(0,.65fr) minmax(0,1.35fr);gap:26px}
 .nav-links{gap:12px}
 .nav-links a{font-size:13px}
}
@media(max-width:960px){
 .hero{grid-template-columns:1fr;gap:25px;padding:56px 0 35px}
 .hero h1{font-size:clamp(52px,7vw,74px)}
 .profile-card{max-width:760px;width:100%}
 .profile-card-main{grid-template-columns:145px 1fr;gap:20px}
 .profile-card-main img{width:145px;height:145px}
 .profile-card-main h2{font-size:28px}
 .explorer-section{grid-template-columns:1fr;gap:23px;margin-top:15px;padding-top:27px}
 .explorer-intro{max-width:730px}
 .explorer-intro h2{font-size:clamp(33px,5vw,45px);margin:12px 0}
 .explorer-intro p{margin-bottom:12px}
 .explorer-section .hero-stage{width:100%;max-width:760px}
 .feature-section.section-gap{margin-top:62px}
}
@media(max-width:600px){
 .hero{gap:22px;padding:42px 0 26px}
 .hero-eyebrow{font-size:11px}
 .hero h1{font-size:clamp(43px,10vw,59px);margin:17px 0 12px}
 .hero-statement{font-size:clamp(22px,5.5vw,29px);margin-bottom:15px}
 .hero .lead{font-size:14px}
 .hero-specialties{gap:6px;margin-top:17px}
 .hero-specialties li{font-size:11px;padding:8px 10px}
 .hero-buttons{gap:7px;margin:21px 0 16px}
 .hero-email{padding:0 6px;font-size:12px;min-height:40px}
 .hero-featured{font-size:11px;gap:5px}
 .profile-card{padding:16px;border-radius:20px}
 .profile-card-label{padding-bottom:12px}
 .profile-card-main{grid-template-columns:95px 1fr;gap:13px;padding:17px 0}
 .profile-card-main img{width:95px;height:95px;border-radius:15px;border-width:4px}
 .profile-kicker{font-size:9px}
 .profile-card-main h2{font-size:clamp(20px,5.2vw,25px);margin:7px 0}
 .profile-card-main p{font-size:11px;line-height:1.45}
 .profile-facts>div{grid-template-columns:76px 1fr;gap:8px}
 .profile-facts dt{font-size:10px}
 .profile-facts dd{font-size:11px}
 .profile-status{font-size:11px}
 .explorer-section{gap:19px;margin-top:8px;padding-top:25px}
 .explorer-intro h2{font-size:35px}
 .explorer-intro p{font-size:14px;line-height:1.6}
 .explorer-section .hero-stage{min-height:0}
 .explorer-section .stage-header{padding:15px}
 .explorer-section .stage-top{padding:15px 15px 10px}
 .explorer-section .stage-pipeline{padding:9px 13px 14px}
 .explorer-section .pipeline-step{min-height:86px;gap:12px}
 .explorer-section .stage-inspector{margin:0 13px 10px;padding:15px}
 .explorer-section .stage-bottom{padding:10px 15px}
 .feature-section.section-gap{margin-top:53px}
}
@media(max-width:380px){
 .profile-card-main{grid-template-columns:82px 1fr;gap:10px}
 .profile-card-main img{width:82px;height:82px}
 .profile-card-main h2{font-size:20px}
}

/* Concise links from project descriptions to real, inspectable code. */
.proof-panel{margin:23px 0 25px;padding:19px;border:1px solid var(--line-2);border-radius:17px;background:#f8f9fa}
.proof-panel-top{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.proof-kicker{font:500 10px/1.4 var(--mono);letter-spacing:.08em;color:#374651}
.proof-verified{font-size:11px;color:var(--muted)}
.proof-intro{max-width:65ch;font-size:13px;line-height:1.55;color:#46515a;margin:0 0 15px}
.proof-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;list-style:none;margin:0;padding:0}
.proof-step{padding:13px;background:#fff;border:1px solid #e2e6e9;border-radius:12px;display:flex;flex-direction:column;gap:7px;min-width:0}
.proof-step-head{display:flex;align-items:baseline;gap:8px;font-size:12px;line-height:1.35}
.proof-no{color:#637480;font:500 10px/1 var(--mono)}
.proof-step p{font-size:12px;line-height:1.5;color:#48545d;flex:1;margin:0}
.proof-step a{align-self:flex-start;font-size:12px;font-weight:600;text-decoration:underline;text-decoration-color:#aab5bd;text-underline-offset:3px}
.proof-step a:hover{text-decoration-color:currentColor}
@media(max-width:760px){.proof-grid{grid-template-columns:1fr}.proof-panel{padding:15px}.proof-step{padding:12px}}