@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root { --ink:#eef7ff; --muted:#91a5b8; --muted-2:#617386; --line:rgba(151,181,204,.17); --panel:rgba(10,24,40,.82); --mint:#77e0c1; --amber:#f4ba72; --violet:#a78bfa; --bg:#08111f; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; color:var(--ink); background:var(--bg); font-family:'DM Sans',system-ui,sans-serif; min-width:320px; }
body::before { content:''; position:fixed; inset:0; pointer-events:none; opacity:.12; background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px); background-size:38px 38px; mask-image:linear-gradient(to bottom,black,transparent 75%); }
.ambient { position:fixed; border-radius:50%; filter:blur(100px); pointer-events:none; opacity:.18; z-index:-1; }.ambient-one{width:380px;height:380px;background:#1c5b72;top:-160px;right:-60px}.ambient-two{width:420px;height:420px;background:#4b2b73;bottom:-230px;left:-180px}
.shell { width:min(1220px,calc(100% - 56px)); margin:0 auto; position:relative; }
.topbar { height:84px; display:flex; align-items:center; justify-content:space-between; border-bottom:1px solid var(--line); }
.brand { display:flex; align-items:center; gap:12px; color:var(--ink); text-decoration:none; letter-spacing:.16em; font:600 13px 'Space Grotesk',sans-serif; }.brand-accent{color:var(--mint)}
.brand-mark{display:flex;gap:3px;align-items:flex-end;height:22px}.brand-mark span{display:block;width:4px;border-radius:4px;background:var(--mint)}.brand-mark span:nth-child(1){height:10px;opacity:.55}.brand-mark span:nth-child(2){height:17px;opacity:.78}.brand-mark span:nth-child(3){height:22px}
.topbar-right{display:flex;align-items:center;gap:25px}.local-chip{color:var(--muted);font:11px 'DM Mono',monospace;letter-spacing:.08em;text-transform:uppercase}.local-chip i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--mint);margin-right:8px;box-shadow:0 0 11px var(--mint)}.help-link{color:var(--muted);text-decoration:none;font-size:12px}.help-link:hover{color:var(--ink)}
.hero{padding:74px 0 66px;max-width:760px}.eyebrow,.section-kicker{display:flex;align-items:center;gap:10px;color:var(--mint);font:500 10px 'DM Mono',monospace;letter-spacing:.16em;text-transform:uppercase}.eyebrow-line{width:25px;height:1px;background:var(--mint)}h1{font:600 clamp(43px,6.8vw,80px)/.99 'Space Grotesk',sans-serif;letter-spacing:-.055em;margin:19px 0 22px}h1 em{color:var(--mint);font-style:normal}.hero-copy{max-width:490px;color:var(--muted);font-size:17px;line-height:1.6;margin:0}.hero-meta{display:flex;align-items:center;gap:14px;margin-top:29px;color:var(--muted-2);font:11px 'DM Mono',monospace;text-transform:uppercase;letter-spacing:.07em}.pulse-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--mint);margin-right:7px;box-shadow:0 0 0 4px rgba(119,224,193,.09)}.meta-divider{width:24px;height:1px;background:var(--line)}
.workspace{background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:0 25px 80px rgba(0,0,0,.2);overflow:hidden}.workspace-head{display:flex;justify-content:space-between;align-items:flex-end;padding:28px 30px 22px}.section-kicker{color:var(--muted-2);font-size:9px}.workspace h2,.how h2{font:600 20px 'Space Grotesk',sans-serif;margin:8px 0 0;letter-spacing:-.02em}.workspace-note{color:var(--muted-2);font:10px 'DM Mono',monospace}.keycap{border:1px solid var(--line);border-radius:3px;padding:3px 5px;color:var(--muted);margin:0 2px}
.lab-tabs{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.lab-tab{position:relative;display:flex;align-items:center;gap:13px;min-height:78px;padding:13px 22px;background:transparent;border:0;border-right:1px solid var(--line);color:var(--muted);text-align:left;cursor:pointer;transition:background .2s,color .2s}.lab-tab:last-child{border-right:0}.lab-tab:hover{background:rgba(255,255,255,.035);color:var(--ink)}.lab-tab.is-active{background:rgba(119,224,193,.065);color:var(--ink)}.lab-tab.is-active::after{content:'';position:absolute;height:2px;background:var(--mint);left:0;right:0;bottom:-1px}.tab-index{align-self:flex-start;font:10px 'DM Mono',monospace;color:var(--muted-2);padding-top:3px}.tab-icon{width:30px;height:30px;display:grid;place-items:center;border:1px solid var(--line);border-radius:7px;font-size:17px}.drone-icon{color:var(--mint)}.api-icon{color:var(--amber);font-size:24px}.system-icon{color:var(--violet);font-size:21px}.tab-copy{display:flex;flex-direction:column;gap:4px}.tab-copy strong{font:600 14px 'Space Grotesk',sans-serif}.tab-copy small{font-size:11px;color:var(--muted-2)}.tab-arrow{margin-left:auto;align-self:flex-start;color:var(--muted-2);font-size:16px}.lab-tab.is-active .tab-arrow{color:var(--mint)}
.lab-stage{margin:0}.stage-toolbar{height:51px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--line);background:rgba(4,12,23,.55)}.stage-title,.stage-actions{display:flex;align-items:center;gap:9px;font-size:11px}.stage-dot{width:6px;height:6px;border-radius:50%;background:var(--mint)}.stage-title strong{font:500 11px 'DM Mono',monospace;letter-spacing:.05em}.stage-separator{color:var(--muted-2)}.stage-title span:last-child{color:var(--muted-2)}.stage-actions{gap:18px;color:var(--muted-2);font:10px 'DM Mono',monospace}.stage-status{letter-spacing:.06em;text-transform:uppercase}.stage-actions a{color:var(--mint);text-decoration:none}.stage-actions a:hover{text-decoration:underline}.frame-wrap{height:clamp(560px,67vw,820px);position:relative;background:#f8fafc}.frame-wrap iframe{border:0;width:100%;height:100%;display:block;background:#f8fafc}.frame-loading{position:absolute;z-index:2;inset:0;display:flex;align-items:center;justify-content:center;gap:12px;background:#f8fafc;color:#64748b;font:11px 'DM Mono',monospace;transition:opacity .25s}.frame-loading.is-hidden{opacity:0;pointer-events:none}.loader{width:13px;height:13px;border:2px solid #cbd5e1;border-top-color:#0f766e;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.workspace-foot{height:46px;padding:0 20px;display:flex;align-items:center;gap:8px;color:var(--muted-2);font:10px 'DM Mono',monospace}.foot-symbol{color:var(--mint);font-size:16px}.foot-spacer{flex:1}.foot-label{letter-spacing:.08em}
.frame-fallback{position:absolute;z-index:3;inset:0;display:flex;align-items:center;justify-content:center;padding:28px;background:rgba(248,250,252,.94)}.frame-fallback[hidden]{display:none}.fallback-card{display:flex;align-items:flex-start;gap:16px;width:min(460px,100%);padding:24px;border:1px solid #d7e1e8;border-radius:12px;background:#fff;box-shadow:0 15px 40px rgba(15,23,42,.1);color:#334155}.fallback-icon{display:grid;place-items:center;flex:0 0 34px;height:34px;border-radius:9px;background:#e6f7f3;color:#087f6b;font-size:19px}.fallback-card strong{display:block;color:#0f172a;font:600 17px 'Space Grotesk',sans-serif}.fallback-card p{margin:9px 0 16px;color:#64748b;font-size:13px;line-height:1.6}.fallback-card a{color:#087f6b;font:600 11px 'DM Mono',monospace;text-decoration:none;text-transform:uppercase;letter-spacing:.05em}.fallback-card a:hover{text-decoration:underline}
.how{display:grid;grid-template-columns:42px minmax(300px,1fr) minmax(340px,490px);gap:20px;align-items:start;padding:76px 15px 84px}.how-icon{color:var(--mint);font-size:28px}.how p{max-width:470px;color:var(--muted);line-height:1.6;font-size:14px;margin:16px 0 0}.flow-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;border:1px solid var(--line);background:var(--line);margin-top:9px}.flow-steps>div{background:rgba(10,24,40,.58);padding:16px 14px;min-height:95px;display:flex;flex-direction:column;gap:7px}.flow-steps span{color:var(--mint);font:10px 'DM Mono',monospace}.flow-steps b{font:600 13px 'Space Grotesk',sans-serif}.flow-steps small{color:var(--muted-2);font-size:11px}
footer{border-top:1px solid var(--line);height:67px;display:flex;align-items:center;justify-content:space-between;color:var(--muted-2);font:9px 'DM Mono',monospace;letter-spacing:.09em}footer span:first-child{color:var(--muted)}
@media(max-width:760px){.shell{width:min(100% - 28px,1220px)}.topbar{height:70px}.help-link{display:none}.hero{padding:52px 0 48px}.hero-meta{flex-wrap:wrap}.workspace-head{padding:22px 17px 18px;align-items:flex-start;gap:18px;flex-direction:column}.workspace-note{display:none}.lab-tabs{grid-template-columns:1fr}.lab-tab{border-right:0;border-bottom:1px solid var(--line);min-height:63px;padding:11px 17px}.lab-tab:last-child{border-bottom:0}.lab-tab.is-active::after{bottom:auto;top:0;right:auto;width:2px;height:100%}.frame-wrap{height:70vh;min-height:500px}.stage-toolbar{padding:0 14px}.stage-actions{gap:9px}.stage-status{display:none}.how{grid-template-columns:1fr;padding:52px 3px 60px;gap:12px}.how-icon{display:none}.flow-steps{margin-top:22px}footer{height:auto;padding:20px 0;gap:12px;flex-wrap:wrap}footer span:nth-child(2){order:3;width:100%}}

/* Practice control center */
.mode-switcher{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin:0 0 24px;border:1px solid var(--line);background:var(--line);border-radius:10px;overflow:hidden}.mode-tab{position:relative;display:flex;flex-direction:column;gap:5px;min-height:78px;padding:15px 17px;background:rgba(10,24,40,.72);border:0;color:var(--muted);text-align:left;cursor:pointer;transition:background .2s,color .2s}.mode-tab:hover{background:rgba(255,255,255,.055);color:var(--ink)}.mode-tab.is-active{background:rgba(119,224,193,.1);color:var(--ink)}.mode-tab.is-active::after{content:'';position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--mint)}.mode-tab>span{color:var(--muted-2);font:10px 'DM Mono',monospace}.mode-tab strong{font:600 13px 'Space Grotesk',sans-serif}.mode-tab small{color:var(--muted-2);font-size:10px}.practice-view[hidden]{display:none}.view-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin:7px 0 22px;padding:2px 3px}.view-heading h2{font:600 clamp(25px,3vw,34px) 'Space Grotesk',sans-serif;letter-spacing:-.04em;margin:9px 0 8px}.view-heading p{max-width:620px;margin:0;color:var(--muted);font-size:14px;line-height:1.6}.quiet-button,.secondary-button,.primary-button,.save-answer{border:1px solid var(--line);border-radius:6px;font:600 10px 'DM Mono',monospace;letter-spacing:.04em;cursor:pointer;transition:all .2s}.quiet-button{padding:9px 12px;background:transparent;color:var(--muted)}.quiet-button:hover{color:var(--ink);border-color:rgba(119,224,193,.45)}.primary-button{padding:12px 15px;background:var(--mint);border-color:var(--mint);color:#06241f}.primary-button:hover{background:#9aefd6;transform:translateY(-1px)}.secondary-button{padding:12px 15px;background:rgba(255,255,255,.04);color:var(--ink)}.secondary-button:hover{background:rgba(255,255,255,.1)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;border:1px solid var(--line);background:var(--line);margin-bottom:16px}.metric-card{min-height:125px;padding:19px;background:rgba(10,24,40,.72)}.metric-label{display:block;color:var(--muted-2);font:9px 'DM Mono',monospace;letter-spacing:.11em}.metric-card strong{display:block;margin:14px 0 5px;color:var(--ink);font:600 25px 'Space Grotesk',sans-serif;letter-spacing:-.04em}.metric-card small{color:var(--muted-2);font-size:11px}.progress-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,.75fr);gap:16px;margin-bottom:16px}.panel-card{border:1px solid var(--line);border-radius:10px;background:rgba(10,24,40,.72);padding:22px}.panel-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:15px}.panel-card h3{font:600 18px 'Space Grotesk',sans-serif;margin:8px 0 0;letter-spacing:-.025em}.panel-count{color:var(--mint);font:11px 'DM Mono',monospace;padding-top:3px}.mission-list{display:grid;gap:1px;margin-top:20px;border:1px solid var(--line);background:var(--line)}.mission-row{display:grid;grid-template-columns:20px 1fr auto;gap:10px;align-items:center;padding:13px 12px;background:rgba(8,17,31,.62);font-size:12px}.mission-row input,.fault-list input{accent-color:var(--mint);width:15px;height:15px}.mission-row strong{display:block;font:500 12px 'Space Grotesk',sans-serif;color:var(--ink)}.mission-row small{display:block;margin-top:4px;color:var(--muted-2);font-size:10px}.mission-row em{color:var(--muted-2);font:10px 'DM Mono',monospace;font-style:normal}.next-card{display:flex;flex-direction:column;min-height:100%}.next-card p{color:var(--muted);font-size:13px;line-height:1.6;margin:15px 0 20px}.next-card .primary-button{align-self:flex-start}.weak-topics{border-top:1px solid var(--line);margin-top:auto;padding-top:17px}.weak-topics .section-kicker{margin-bottom:10px}.topic-pill{display:inline-block;margin:0 5px 5px 0;padding:5px 7px;border:1px solid rgba(244,186,114,.28);border-radius:99px;color:var(--amber);font:10px 'DM Mono',monospace}.health-card{padding-bottom:18px}.health-note{color:var(--muted-2);font-size:11px;margin:12px 0 15px}.health-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.health-item{display:flex;align-items:center;gap:10px;padding:13px;background:rgba(8,17,31,.62)}.health-item i{width:8px;height:8px;border-radius:50%;background:#64748b}.health-item.is-online i{background:var(--mint);box-shadow:0 0 12px rgba(119,224,193,.7)}.health-item.is-offline i{background:#f87171}.health-item strong{display:block;font:500 11px 'Space Grotesk',sans-serif}.health-item small{display:block;margin-top:3px;color:var(--muted-2);font:9px 'DM Mono',monospace}.scenario-badge{padding:8px 10px;border:1px solid rgba(119,224,193,.2);border-radius:99px;color:var(--mint);font:10px 'DM Mono',monospace;white-space:nowrap}.scenario-badge i{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--mint);margin-right:6px}.capstone-layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(270px,.8fr);gap:16px}.capstone-main{padding:20px}.pipeline{display:flex;align-items:center;gap:8px;overflow:auto;padding:3px 0 18px}.pipeline-node{min-width:118px;min-height:83px;padding:12px;border:1px solid var(--line);border-radius:8px;background:rgba(8,17,31,.72);transition:all .25s}.pipeline-node span{display:block;color:var(--muted-2);font:9px 'DM Mono',monospace}.pipeline-node b{display:block;margin-top:10px;color:var(--ink);font:500 12px 'Space Grotesk',sans-serif}.pipeline-node small{display:block;margin-top:4px;color:var(--muted-2);font-size:10px}.pipeline-node.is-active{border-color:var(--amber);box-shadow:0 0 0 3px rgba(244,186,114,.08)}.pipeline-node.is-done{border-color:rgba(119,224,193,.5);background:rgba(119,224,193,.08)}.pipeline-node.is-fault{border-color:#f87171;background:rgba(248,113,113,.08)}.pipeline-arrow{color:var(--muted-2);font-size:20px}.capstone-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:9px;padding:17px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.capstone-score{margin-left:auto;color:var(--muted);font:10px 'DM Mono',monospace}.event-stream{display:grid;gap:7px;min-height:210px;max-height:315px;overflow:auto;padding-top:15px}.empty-log{align-self:center;color:var(--muted-2);font:11px 'DM Mono',monospace;text-align:center}.event-row{display:grid;grid-template-columns:70px 10px 1fr;gap:10px;align-items:start;padding:9px 0;border-bottom:1px solid rgba(151,181,204,.08)}.event-row time{color:var(--muted-2);font:9px 'DM Mono',monospace}.event-row i{width:7px;height:7px;border-radius:50%;margin-top:3px;background:var(--mint)}.event-row.is-fault i{background:#f87171}.event-row.is-recovery i{background:var(--amber)}.event-row strong{display:block;color:var(--ink);font:500 11px 'Space Grotesk',sans-serif}.event-row small{display:block;margin-top:3px;color:var(--muted-2);font-size:10px;line-height:1.4}.fault-card p{color:var(--muted);font-size:12px;line-height:1.6;margin:14px 0}.fault-list{display:grid;gap:7px}.fault-list label{display:grid;grid-template-columns:18px 1fr;gap:8px;align-items:start;color:var(--ink);font-size:11px;cursor:pointer}.fault-list label small{grid-column:2;color:var(--muted-2);font:9px 'DM Mono',monospace;margin-top:-4px}.fault-tip{border-top:1px solid var(--line);margin-top:18px;padding-top:15px}.fault-tip span{display:block;color:var(--muted-2);font:9px 'DM Mono',monospace;letter-spacing:.08em}.fault-tip b{display:block;margin-top:8px;color:var(--amber);font:500 12px/1.5 'Space Grotesk',sans-serif}.timer-display{min-width:90px;padding:11px 13px;border:1px solid rgba(244,186,114,.35);border-radius:7px;color:var(--amber);font:600 18px 'DM Mono',monospace;text-align:center}.interview-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(270px,.7fr);gap:16px}.interview-main{padding:24px}.prompt-picker{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:24px}.prompt-chip{padding:8px 10px;border:1px solid var(--line);border-radius:6px;background:transparent;color:var(--muted);font:10px 'DM Mono',monospace;cursor:pointer}.prompt-chip.is-active{border-color:var(--mint);background:rgba(119,224,193,.1);color:var(--mint)}.prompt-label,.answer-label{display:flex;justify-content:space-between;color:var(--muted-2);font:9px 'DM Mono',monospace;letter-spacing:.1em}.interview-main h3{max-width:720px;margin:11px 0 15px;color:var(--ink);font:600 clamp(20px,2.5vw,28px)/1.15 'Space Grotesk',sans-serif;letter-spacing:-.03em}.follow-up{padding:11px 13px;border-left:2px solid var(--amber);background:rgba(244,186,114,.06);color:var(--muted);font-size:12px;line-height:1.5}.interview-controls{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.answer-label{align-items:center;margin-bottom:8px}.voice-button{border:0;background:transparent;color:var(--mint);font:10px 'DM Mono',monospace;cursor:pointer}.voice-button.is-listening{color:#f87171}.interview-main textarea{width:100%;resize:vertical;min-height:160px;padding:14px;border:1px solid var(--line);border-radius:7px;background:rgba(5,13,25,.76);color:var(--ink);font:13px/1.6 'DM Sans',sans-serif;outline:none}.interview-main textarea:focus{border-color:rgba(119,224,193,.6);box-shadow:0 0 0 3px rgba(119,224,193,.08)}.voice-status{min-height:16px;margin-top:8px;color:var(--muted-2);font:10px 'DM Mono',monospace}.save-answer{margin-top:14px;padding:12px 15px;background:var(--mint);border-color:var(--mint);color:#06241f}.rubric-card{padding:24px}.rubric-list{display:grid;gap:18px;margin-top:23px}.rubric-list label{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;color:var(--ink);font:11px 'Space Grotesk',sans-serif}.rubric-list output{color:var(--mint);font:10px 'DM Mono',monospace}.rubric-list input{grid-column:1 / -1;width:100%;accent-color:var(--mint)}.score-total{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin-top:24px;padding-top:16px;color:var(--muted-2);font:9px 'DM Mono',monospace}.score-total strong{color:var(--mint);font-size:17px}.answer-history{border-top:1px solid var(--line);margin-top:22px;padding-top:17px}.answer-history p{color:var(--muted);font-size:11px;line-height:1.5}.answer-history strong{color:var(--ink);font:500 11px 'Space Grotesk',sans-serif}.answer-history small{display:block;color:var(--muted-2);font:9px 'DM Mono',monospace;margin-top:3px}
@media(max-width:760px){.mode-switcher{grid-template-columns:repeat(2,1fr)}.mode-tab{min-height:72px;padding:12px}.mode-tab small{font-size:9px}.view-heading{align-items:flex-start;flex-direction:column}.metrics-grid{grid-template-columns:repeat(2,1fr)}.metric-card{min-height:108px;padding:14px}.metric-card strong{font-size:21px;margin-top:11px}.progress-layout,.capstone-layout,.interview-layout{grid-template-columns:1fr}.health-grid{grid-template-columns:1fr}.capstone-toolbar{align-items:flex-start}.capstone-score{width:100%;margin-left:0}.pipeline{padding-bottom:14px}.pipeline-node{min-width:110px}.view-heading .scenario-badge{align-self:flex-start}.interview-main,.rubric-card{padding:18px}.timer-display{align-self:flex-start}.fallback-card{padding:20px}}