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var(--obloc-line);border-radius:7px;background:var(--obloc-surface);padding:16px;margin-bottom:10px;font-size:12px}.tour-step span{font:12px var(--obloc-font-mono);color:var(--obloc-accent)}.tour-step.active{border-color:var(--obloc-secondary);background:var(--obloc-success-bg)}.tour-stage{min-height:395px}.tour-stage h2{font:38px/1.15 var(--obloc-font-display);letter-spacing:-1px;margin:19px 0}.tour-stage p{font-size:13px}.tour-stage .visual-equation{padding:24px 20px;border:1px dashed var(--obloc-control-line);border-radius:7px;background:var(--obloc-bg);font:13px/2 var(--obloc-font-mono);margin:24px 0;color:var(--obloc-secondary);overflow-wrap:anywhere}.explanation-list{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:20px 0}.source-row{padding:17px 0;border-bottom:1px solid var(--obloc-line)}.source-row strong{font-size:13px;font-weight:550;display:block}.source-row code{font-size:10px;color:var(--obloc-muted);display:block;margin-top:8px}.merkle-row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin:13px 0}.merkle-node{padding:10px;border:1px solid var(--obloc-line);border-radius:5px;background:var(--obloc-bg);font:9px var(--obloc-font-mono);color:var(--obloc-secondary)}.lab-output{font:34px var(--obloc-font-mono);letter-spacing:-1px;color:var(--obloc-accent);margin:22px 0 5px}.empty{padding:30px;text-align:center;border:1px dashed var(--obloc-line);border-radius:9px}.empty h3{margin-bottom:12px}.empty p{font-size:12px;color:var(--obloc-muted)}.empty .actions{justify-content:center;margin-top:20px}dialog{width:min(620px,calc(100vw - 30px));max-height:88vh;overflow:auto;background:var(--obloc-surface);border:1px solid var(--obloc-control-line);border-radius:12px;color:var(--obloc-text);padding:0;box-shadow:0 30px 120px #0007}dialog::backdrop{background:#0e1b29c0;backdrop-filter:blur(5px)}.dialog-header{display:flex;align-items:center;justify-content:space-between;padding:24px 27px;border-bottom:1px solid var(--obloc-line)}.dialog-header h2{font-size:23px}#dialog-body{padding:23px 27px 29px}.dialog-error{color:var(--obloc-warning);font-size:12px;margin-top:16px;white-space:pre-wrap}#toast{position:fixed;bottom:24px;left:calc(246px + 38px);max-width:min(650px,calc(100vw - 36px));background:var(--obloc-surface);border:1px solid var(--obloc-secondary);border-radius:8px;padding:14px 19px;font-size:12px;z-index:100;box-shadow:0 12px 40px #0004;opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s}#toast.show{opacity:1;transform:none}#toast.error{border-color:var(--obloc-warning)}.mobile-menu{display:none}[hidden]{display:none!important}
@media(min-width:1600px){.hero{min-height:462px;padding:50px}.hero h1{font-size:68px}.hero-copy>p{font-size:14px}.visual-grid{width:240px}.orbit{width:350px;height:350px}.float-label.top{left:22px}.float-label.bottom{right:18px}}
@media(max-width:1210px){.sidebar{width:220px;padding-inline:14px}.topbar{left:220px;padding:0 25px}main{margin-left:220px;padding:109px 25px 24px}.top-actions{gap:9px}.breadcrumb>span{display:none}.hero{padding:34px 29px;gap:12px;grid-template-columns:1.15fr .9fr}.hero h1{font-size:43px}.visual-grid{width:181px}.orbit{width:260px;height:260px}.float-label{padding:10px 12px}.float-label.top{left:0;top:21px}.float-label.bottom{right:0;bottom:14px;min-width:172px}.stat{padding:0 17px;gap:10px}.stat strong{font-size:26px}.card{padding:22px}.split{grid-template-columns:1fr 1fr}.course-layout{grid-template-columns:210px minmax(0,1fr)}#toast{left:245px}}
@media(max-width:1000px){.hero{grid-template-columns:1.1fr .75fr}.hero h1{font-size:37px}.hero-visual{min-height:310px}.visual-grid{width:163px}.float-label.top{left:-20px;font-size:10px}.float-label.bottom{right:-18px;font-size:10px}.orbit{width:225px;height:225px}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3 .feature:last-child{grid-column:1/-1;min-height:170px}.feature:last-child .feature-icon{margin-bottom:18px}.grid-2,.split{grid-template-columns:1fr}.page-heading{align-items:flex-start}.course-layout{grid-template-columns:1fr}.course-menu{display:grid;grid-template-columns:repeat(2,1fr);max-height:220px;position:static}.tour-layout{grid-template-columns:220px 1fr}.top-actions .theme-label select{max-width:124px}.stat span{font-size:9px}.board-cell{font-size:16px}}
@media(max-width:760px){.sidebar{width:250px;transform:translateX(-100%);transition:transform .2s}.sidebar.open{transform:translateX(0)}.shade{position:fixed;inset:0;z-index:35;background:#0e1b29aa}.topbar{left:0;height:67px;padding:0 17px}.breadcrumb{gap:9px}.breadcrumb i{display:none}.breadcrumb b{font-size:11px}.mobile-menu{display:grid}.top-actions .theme-label select{max-width:117px;font-size:10px;padding:7px}.top-actions .button{font-size:10px;max-width:136px;padding:8px 10px;min-height:34px}main{margin-left:0;padding:89px 18px 20px}.hero{grid-template-columns:1fr;padding:28px 25px;gap:20px}.hero:after{inset:48% 0 0}.hero h1{font-size:46px;letter-spacing:-1.8px}.hero-copy>p{font-size:13px}.hero-visual{min-height:282px}.visual-grid{width:203px}.orbit{width:274px;height:274px}.float-label.top{left:calc(50% - 156px);top:7px}.float-label.bottom{right:calc(50% - 155px);bottom:9px}.visual-cap{bottom:-14px;font-size:7px}.hero .button{font-size:11px;padding:11px 13px}.stat-strip{grid-template-columns:repeat(2,1fr);gap:20px;padding:25px 0;margin-bottom:23px}.stat{padding:0 14px!important}.stat:nth-child(2){border:0}.stat span{font-size:10px}.stat strong{font-size:29px}.grid-3{grid-template-columns:1fr}.grid-3 .feature:last-child{grid-column:auto;min-height:215px}.section-head{margin-top:26px;align-items:flex-start}.section-head h2{font-size:23px}.section-head .text-link{font-size:10px;white-space:nowrap}.feature{min-height:213px}.card{padding:22px}.page-heading{display:block}.page-heading h1{font-size:35px}.page-heading .actions{margin-top:18px}.page-heading p{font-size:12px}.course-layout{gap:16px}.lesson-head{padding:23px}.lesson-head h2{font-size:29px}.concept{padding-inline:0}.course-menu{max-height:215px}.course-link{font-size:10px;padding:10px}.library-filters{grid-template-columns:1fr;gap:12px}.tour-layout{grid-template-columns:1fr}.tour-sidebar{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.tour-step{margin:0;padding:12px;font-size:11px}.tour-stage h2{font-size:31px}.explanation-list{grid-template-columns:1fr}.split{gap:17px}.board-cell{font-size:12px}.live-board{margin-top:17px}.control-bar label{margin-left:0}.flow-step{min-width:42px;font-size:9px}.flow-step b{width:29px;height:29px}.flow-arrow{font-size:12px}.key-value{grid-template-columns:95px minmax(0,1fr)}.chain-block{flex-basis:182px}.digest.large{font-size:11px;letter-spacing:.5px}.board-counts{gap:8px}.count-box{padding:10px}.count-box b{font-size:20px}.count-box small{font-size:8px}.hero-note{font-size:8px}footer{margin-top:32px;flex-direction:column;font-size:9px;gap:7px}#toast{left:18px;bottom:18px}.dialog-header{padding:20px}#dialog-body{padding:20px}.node-card{padding:14px}.page-heading h1{overflow-wrap:anywhere}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.visual-grid{transform:none}}
@media print{.sidebar,.topbar,footer,.actions,.control-bar{display:none!important}main{margin:0;padding:0}.card,.hero{break-inside:avoid}.hero{display:block}.hero-visual{display:none}body{font-size:11px}}