:root{--bg:#0a0f18;--panel:#101827;--panel2:#151f31;--line:#26334a;--text:#e8eef8;--muted:#96a5bc;--accent:#58a6ff;--accent2:#a371f7;--good:#3ddc97;--warn:#f7b955;--bad:#ff6b78;--shadow:0 18px 45px rgba(0,0,0,.24);--code:#080d15;--radius:18px}html[data-theme="light"]{--bg:#eef3f9;--panel:#fff;--panel2:#f6f8fb;--line:#d7e0eb;--text:#172033;--muted:#607089;--shadow:0 14px 34px rgba(31,52,80,.12);--code:#101722}html[data-accent="violet"]{--accent:#a371f7;--accent2:#f778ba}html[data-accent="teal"]{--accent:#2dd4bf;--accent2:#58a6ff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.55 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.app{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:238px;padding:18px 14px;background:color-mix(in srgb,var(--panel) 94%,transparent);border-right:1px solid 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/* Professional completion */
.breadcrumb{display:flex;align-items:center;gap:.55rem;color:var(--muted);font-size:.82rem;margin:0 0 .9rem}.breadcrumb strong{color:var(--text)}
.topology-layout,.explorer-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);gap:1rem}.topology-canvas{min-height:520px;display:grid;place-items:center;overflow:auto}.topology-canvas img{width:100%;min-width:760px;max-height:680px}.topology-side{align-self:start;position:sticky;top:84px}.view-switch,.chips{display:flex;gap:.5rem;flex-wrap:wrap}.resource-tree{min-height:520px}.tree details{margin:.4rem 0 0 .4rem}.tree summary{cursor:pointer;font-weight:700;padding:.6rem}.tree button{width:calc(100% - 1rem);margin:.25rem 0 .25rem 1rem;display:flex;justify-content:space-between;border:1px solid var(--border);background:var(--surface-2);color:var(--text);padding:.7rem .8rem;border-radius:.65rem}.builder{align-self:start;position:sticky;top:84px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin:1rem 0}.form-grid label{display:grid;gap:.35rem;color:var(--muted);font-size:.82rem}.form-grid select{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:.7rem;padding:.75rem}.risk-note{border-left:3px solid var(--accent);padding:.65rem .8rem;background:var(--surface-2);border-radius:.45rem}.checklist-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.ops-checklist{padding:0;overflow:hidden}.ops-checklist header{padding:1rem;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;gap:1rem}.ops-checklist .check-body{padding:1rem}.ops-checklist label{display:grid;grid-template-columns:auto 1fr;gap:.7rem;align-items:start;padding:.55rem 0;border-bottom:1px dashed var(--border)}.ops-checklist progress{width:100%;height:.5rem}.pattern-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.pattern-card{position:relative}.pattern-card .pattern-meta{display:flex;gap:.4rem;flex-wrap:wrap;margin:.65rem 0}.pattern-card details{margin-top:.7rem}.pattern-card summary{cursor:pointer;color:var(--accent);font-weight:700}.cheat-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:1rem}.cheat-index{position:sticky;top:84px;align-self:start}.cheat-index button{width:100%;text-align:left;margin:.25rem 0}.cheat-section{scroll-margin-top:90px}.cheat-section h3{margin-top:0}.cheat-table{width:100%;border-collapse:collapse}.cheat-table th,.cheat-table td{padding:.75rem;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}.cheat-table th{color:var(--muted);font-size:.78rem;text-transform:uppercase}.nav{overflow:auto}.sidebar{overflow:hidden}.sidebar .nav{padding-bottom:1rem}.sidebar-foot{font-size:.72rem}
@media(max-width:1100px){.checklist-grid,.pattern-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topology-layout,.explorer-layout{grid-template-columns:1fr}.topology-side,.builder{position:static}}
@media(max-width:720px){.checklist-grid,.pattern-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.cheat-layout{grid-template-columns:1fr}.cheat-index{position:static}.topology-canvas{min-height:360px}.topology-canvas img{min-width:650px}}

/* UI/UX Finishing 2026-07-12 */
:root{--bg:#09111f;--panel:#101a2b;--panel2:#152238;--line:#263750;--text:#edf4ff;--muted:#95a7c0;--accent:#5aa7ff;--accent2:#7cbcff;--good:#38d996;--warn:#f4b857;--bad:#ff6b78;--shadow:0 12px 30px rgba(0,0,0,.18);--radius:16px}
html[data-theme="light"]{--bg:#f3f6fa;--panel:#ffffff;--panel2:#f7f9fc;--line:#dce4ee;--text:#182235;--muted:#64748b;--shadow:0 8px 24px rgba(31,52,80,.09)}
body{letter-spacing:.005em;background:radial-gradient(circle at 75% -10%,color-mix(in srgb,var(--accent) 7%,transparent),transparent 34%),var(--bg)}
.sidebar{width:226px;padding:15px 12px;background:color-mix(in srgb,var(--panel) 97%,transparent);box-shadow:8px 0 30px rgba(0,0,0,.08)}
.main{margin-left:226px}.brand{padding:4px 5px 17px}.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--accent);box-shadow:none}.brand-copy strong{font-size:.94rem}.brand-copy small{font-size:.69rem}
.nav{gap:3px}.nav button{min-height:40px;padding:8px 10px;border-radius:9px;font-size:.85rem;transition:background .18s,color .18s,transform .18s}.nav button:hover{transform:translateX(2px)}.nav button.active{background:color-mix(in srgb,var(--accent) 11%,var(--panel2));box-shadow:inset 2px 0 var(--accent)}.ico{font-size:17px;width:20px;color:var(--accent)}
.topbar{height:64px;padding:8px 20px;background:color-mix(in srgb,var(--bg) 92%,transparent)}.search-trigger{max-width:780px;background:color-mix(in srgb,var(--panel) 96%,transparent);border-radius:10px;padding:9px 12px;box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--accent) 0%,transparent)}.search-trigger:hover{border-color:color-mix(in srgb,var(--accent) 55%,var(--line))}.kbd{background:var(--panel2)}
.content{padding:22px 26px 36px}.breadcrumb{margin-bottom:12px}.hero{grid-template-columns:minmax(0,1.3fr) minmax(320px,.7fr);gap:14px}.hero-card,.card,.signal,details{background:var(--panel);box-shadow:var(--shadow);border-radius:var(--radius)}.hero-card{padding:28px;min-height:236px}.hero-card:first-child{border-left:3px solid var(--accent)}
h1{font-size:clamp(30px,3.5vw,50px);letter-spacing:-.035em}h2{font-size:clamp(22px,2vw,31px);letter-spacing:-.022em}h3{font-size:1.02rem}.lead{font-size:16px}.eyebrow{letter-spacing:.12em;font-size:10px}
.card,.signal{padding:18px}.grid{gap:14px}.metric{font-size:34px}.metric.small{font-size:27px}.section-head{margin-bottom:15px}.section-head h2{margin-top:3px}
.btn,.actions button,.chip{border-radius:9px;padding:8px 11px;background:var(--panel2);transition:border-color .18s,background .18s,transform .18s}.btn:hover,.actions button:hover,.chip:hover{border-color:color-mix(in srgb,var(--accent) 55%,var(--line));transform:translateY(-1px)}.btn.primary,.btn.active,.chip.active{background:var(--accent);color:#07111f}
.status,.tier,.tag,.signal-chips span,.risk{border-radius:7px}.status{background:var(--panel2);padding:4px 7px;border:1px solid var(--line)}.status.good{background:color-mix(in srgb,var(--good) 9%,var(--panel));border-color:color-mix(in srgb,var(--good) 28%,var(--line))}.status.warn{background:color-mix(in srgb,var(--warn) 9%,var(--panel));border-color:color-mix(in srgb,var(--warn) 28%,var(--line))}.status.bad{background:color-mix(in srgb,var(--bad) 9%,var(--panel));border-color:color-mix(in srgb,var(--bad) 28%,var(--line))}
.service-card,.pattern-card,.incident-card,.ops-checklist{border-left:2px solid color-mix(in srgb,var(--accent) 70%,var(--line));transition:transform .18s,border-color .18s,box-shadow .18s}.service-card:hover,.pattern-card:hover,.incident-card:hover,.ops-checklist:hover{transform:translateY(-2px);border-left-color:var(--accent);box-shadow:0 16px 32px rgba(0,0,0,.2)}
.favorite-strip button{border-radius:9px}.timeline{gap:10px}.timeline-item{padding-bottom:11px}.signal-grid{gap:14px}.signal{border-top:2px solid color-mix(in srgb,var(--accent) 65%,var(--line))}.spark i{background:var(--accent);opacity:.68}.trace div{border-radius:7px}
.step{border-radius:12px;padding:15px}.step-no{border-radius:9px}.diag-context{border-radius:11px}.expected{border-radius:0 8px 8px 0}
details{box-shadow:none}summary{padding:14px 17px}details[open]{border-color:color-mix(in srgb,var(--accent) 34%,var(--line))}
.code-wrap:before{content:'TERMINAL';position:absolute;left:12px;top:11px;z-index:2;font:700 9px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.12em;color:#7185a4}.copy{top:7px;right:7px;border-radius:7px;background:#162237}.copy:hover{border-color:#5aa7ff}pre{border-radius:10px;padding-top:38px;box-shadow:inset 0 1px 0 rgba(255,255,255,.025)}
.topology-canvas,.resource-tree{background:color-mix(in srgb,var(--panel) 96%,var(--accent) 4%)}.topology-side,.builder,.cheat-index{box-shadow:0 10px 26px rgba(0,0,0,.15)}
.command-palette{background:rgba(3,8,16,.78)}.palette-box{border-radius:14px}.palette-item{padding:10px 15px}.toast{border-radius:8px}
.sidebar-foot{line-height:1.5}.home-link{text-decoration:none}.home-link:hover{text-decoration:underline}
.simulation-banner{display:flex;gap:10px;align-items:center;background:color-mix(in srgb,var(--accent) 9%,var(--panel));border:1px solid color-mix(in srgb,var(--accent) 40%,var(--line));padding:10px 14px;border-radius:12px;margin-bottom:12px;color:var(--muted)}.simulation-banner strong{color:var(--accent);letter-spacing:.08em;font-size:11px}
@media(max-width:760px){.sidebar{width:218px}.content{padding:13px 12px 26px}.topbar{height:58px}.hero{gap:10px}.hero-card{padding:18px}.hero-card:nth-child(2){display:none}.grid{gap:10px}.card,.signal{padding:14px}.span-3{grid-column:span 12}.search-trigger{min-width:44px;flex:1}.env-select:nth-of-type(2){display:none}.nav button{min-height:42px}.service-card:hover,.pattern-card:hover,.incident-card:hover,.ops-checklist:hover{transform:none}}