:root {
  --bg: #0B0C10;
  --bg2: #101117;
  --panel: #15161D;
  --panel2: #1C1D26;
  --line: #2A2B37;
  --line2: #363746;
  --text: #ECECF2;
  --muted: #9C9CB0;
  --dim: #6D6D82;
  --accent: #FF6D5A;
  --accent2: #FF8A7A;
  --green: #2BD47D;
  --red: #FF4D5E;
  --amber: #F5B544;
  --blue: #5B8CFF;
  --hot: #FF6D5A;
  --warm: #F5B544;
  --cold: #5B8CFF;
  --radius: 14px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Bricolage Grotesque", "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent2); }
img, svg { display: block; }
code, pre { font-family: var(--mono); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 12px; }

.wrap { width: min(1160px, 100% - 40px); margin-inline: auto; }
.wrap.wide { width: min(1440px, 100% - 32px); }

.ico { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.ico.big { width: 34px; height: 34px; color: var(--accent); }

/* ---------- NAV ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgb(11 12 16 / .82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 24px; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font: 700 19px/1 var(--display); }
.brand-mark { width: 32px; height: 32px; border-radius: 9px; background: var(--accent); color: #fff; display: grid; place-items: center; box-shadow: 0 6px 20px rgb(255 109 90 / .35); }
.brand-mark svg { width: 22px; height: 22px; }
.brand-tag { font: 600 11px/1 var(--mono); color: var(--accent2); border: 1px solid rgb(255 109 90 / .4); padding: 4px 6px; border-radius: 6px; }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--text); }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font: 600 15px/1 var(--font); text-decoration: none; cursor: pointer;
  padding: 14px 20px; border-radius: 11px; border: 1px solid transparent;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 26px rgb(255 109 90 / .28); }
.btn-primary:hover { background: #ff7f6e; box-shadow: 0 10px 30px rgb(255 109 90 / .4); }
.btn-primary .ico { fill: currentColor; stroke: none; }
.btn-primary[href] .ico, .btn-ghost .ico { fill: none; stroke: currentColor; }
.btn-ghost { background: var(--panel); color: var(--text); border-color: var(--line2); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-sm { padding: 9px 13px; font-size: 13px; border-radius: 9px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .6; cursor: progress; }

/* ---------- HERO ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 84px 0 70px;
  background:
    radial-gradient(700px 380px at 85% -10%, rgb(255 109 90 / .16), transparent 70%),
    radial-gradient(600px 300px at -10% 110%, rgb(91 140 255 / .10), transparent 70%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgb(255 255 255 / .07) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(to bottom, #000 30%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, #000 30%, transparent);
}
.hero .wrap { position: relative; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 14px; font: 600 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--accent2); }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgb(43 212 125 / .18); }
h1, h2, h3 { font-family: var(--display); letter-spacing: -.02em; margin: 0; }
h1 { font-size: clamp(38px, 6vw, 72px); line-height: 1.02; font-weight: 800; max-width: 900px; }
h1 em { font-style: normal; color: var(--accent); }
h2 { font-size: clamp(28px, 3.6vw, 42px); line-height: 1.1; font-weight: 700; }
h3 { font-size: 18px; font-weight: 700; }
.lede { max-width: 820px; color: var(--muted); font-size: 18px; margin: 22px 0 30px; }
.lede strong { color: var(--text); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

.flow-strip { list-style: none; padding: 0; margin: 44px 0 0; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.flow-strip li { display: flex; align-items: center; gap: 8px; }
.flow-strip li:not(:last-child)::after { content: "→"; color: var(--dim); font-family: var(--mono); }
.flow-strip .fork { flex-direction: column; align-items: flex-start; gap: 6px; padding: 8px 10px; border: 1px dashed var(--line2); border-radius: 12px; }
.flow-strip .fork::after { display: none; }
.flow-strip .fork + li::before { content: "→"; color: var(--dim); font-family: var(--mono); }
.chip { display: inline-block; font: 500 13px/1 var(--font); padding: 9px 12px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line2); color: var(--text); white-space: nowrap; }
.chip-ai { border-color: rgb(16 163 127 / .6); color: #6EE7C4; }
.chip-hot { border-color: rgb(255 109 90 / .55); color: var(--accent2); }
.chip-warm { border-color: rgb(245 181 68 / .55); color: var(--amber); }
.chip-cold { border-color: rgb(91 140 255 / .55); color: #9DB8FF; }
.chip-err { border-color: rgb(255 77 94 / .5); color: #FF8C97; }

.facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 40px 0 0; max-width: 820px; }
.facts div { background: rgb(21 22 29 / .7); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.facts dt { font: 800 28px/1 var(--display); color: var(--text); }
.facts dd { margin: 6px 0 0; color: var(--muted); font-size: 13px; }

/* ---------- SECTIONS ---------- */
.lab { padding: 70px 0 80px; border-top: 1px solid var(--line); background: var(--bg2); }
.section { padding: 84px 0; border-top: 1px solid var(--line); }
.section.alt { background: var(--bg2); }
.section-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 18px 40px; margin-bottom: 26px; }
.section-lede { color: var(--muted); max-width: 680px; margin: 14px 0 34px; }
.sim-note { display: flex; gap: 10px; align-items: flex-start; max-width: 620px; margin: 0; font-size: 13px; color: var(--muted); background: rgb(245 181 68 / .07); border: 1px solid rgb(245 181 68 / .3); border-radius: 12px; padding: 12px 14px; }
.sim-note .ico { color: var(--amber); margin-top: 1px; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }

/* ---------- LAB GRID ---------- */
.lab-grid { display: grid; grid-template-columns: 370px minmax(0, 1fr); gap: 18px; align-items: start; }

.form-card { padding: 22px; position: sticky; top: 78px; }
.form-top { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.presets { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 12px; color: var(--dim); }
.pill { font: 600 12px/1 var(--font); color: var(--text); background: var(--panel2); border: 1px solid var(--line2); border-radius: 999px; padding: 7px 11px; cursor: pointer; }
.pill:hover { border-color: var(--accent); }
.pill[data-preset="hot"] { color: var(--accent2); }
.pill[data-preset="warm"] { color: var(--amber); }
.pill[data-preset="cold"] { color: #9DB8FF; }
.pill[data-preset="invalid"] { color: #FF8C97; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 13px; min-width: 0; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
label { font-size: 13px; font-weight: 600; color: #CFCFDC; }
.opt { font-weight: 500; color: var(--dim); font-size: 12px; }
input, select, textarea {
  width: 100%; font: 500 14px/1.4 var(--font); color: var(--text);
  background: var(--bg); border: 1px solid var(--line2); border-radius: 10px; padding: 11px 12px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
textarea { resize: vertical; min-height: 92px; }
input::placeholder, textarea::placeholder { color: #55556A; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgb(255 109 90 / .18); }
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239C9CB0' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; background-size: 16px; padding-right: 32px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 500; font-size: 13px; color: var(--muted); margin: 4px 0 16px; cursor: pointer; }
.check input { width: 16px; height: 16px; margin: 2px 0 0; accent-color: var(--accent); flex: none; }
.check small { color: var(--dim); }
.form-foot { font-size: 12px; color: var(--dim); margin: 12px 0 0; }
.form-foot strong { color: var(--muted); }

/* ---------- EDITOR ---------- */
.editor { overflow: hidden; display: flex; flex-direction: column; min-width: 0; }
.editor-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line); background: var(--panel); }
.editor-title { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 14px; min-width: 0; }
.editor-title > span:nth-child(2) { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.wf-dot { width: 10px; height: 10px; border-radius: 3px; background: var(--accent); flex: none; }
.status { font: 600 11px/1 var(--mono); padding: 6px 9px; border-radius: 999px; background: var(--panel2); color: var(--muted); border: 1px solid var(--line2); white-space: nowrap; }
.status.running { color: var(--amber); border-color: rgb(245 181 68 / .45); }
.status.success { color: var(--green); border-color: rgb(43 212 125 / .45); }
.status.error { color: var(--red); border-color: rgb(255 77 94 / .45); }
.editor-tools { display: flex; gap: 6px; }
.tool { font: 600 13px/1 var(--font); color: var(--text); background: var(--panel2); border: 1px solid var(--line2); border-radius: 8px; min-width: 32px; height: 30px; padding: 0 10px; cursor: pointer; }
.tool:hover { border-color: var(--accent); }

.canvas-wrap {
  position: relative; overflow: auto; height: 540px;
  background-color: #17181F;
  background-image: radial-gradient(#2E2F3B 1.1px, transparent 1.1px);
  background-size: 20px 20px;
  cursor: grab; overscroll-behavior: contain;
  scrollbar-color: var(--line2) transparent;
}
.canvas-wrap.dragging { cursor: grabbing; user-select: none; }
#canvas { transform-origin: 0 0; }

/* svg nodes */
.edge { fill: none; stroke: #4A4B5C; stroke-width: 2; transition: stroke .3s ease; }
.edge.err-edge { stroke-dasharray: 6 6; }
.edge.active { stroke: var(--accent); stroke-width: 2.5; stroke-dasharray: 8 7; animation: flow .5s linear infinite; }
.edge.done { stroke: var(--green); stroke-width: 2.5; stroke-dasharray: none; }
.edge.failed { stroke: var(--red); }
@keyframes flow { to { stroke-dashoffset: -15; } }
.edge-label { font: 600 11px var(--mono); fill: var(--muted); }
.edge-label.l-hot { fill: var(--accent2); } .edge-label.l-warm { fill: var(--amber); } .edge-label.l-cold { fill: #9DB8FF; }
.edge-label.l-true { fill: var(--green); } .edge-label.l-false { fill: #FF8C97; }

.node { cursor: pointer; outline: none; }
.node-box { fill: #22232D; stroke: #3A3B4A; stroke-width: 1.5; transition: stroke .25s ease, fill .25s ease; }
.node:hover .node-box, .node:focus-visible .node-box { stroke: #8A8BA0; }
.node.selected .node-box { stroke: var(--text); stroke-width: 2; }
.node-title { font: 600 13.5px var(--font); fill: var(--text); }
.node-sub { font: 500 11px var(--mono); fill: var(--muted); }
.node-icon-bg { opacity: .16; }
.port { fill: #22232D; stroke: #6A6B80; stroke-width: 1.5; }
.node-run { font: 600 11px var(--mono); fill: var(--muted); }
.badge { opacity: 0; transition: opacity .2s ease; }
.node.running .node-box { stroke: var(--accent); stroke-width: 2.5; animation: pulse 1s ease-in-out infinite; }
@keyframes pulse { 50% { stroke: #FFB2A7; } }
.node.success .node-box { stroke: var(--green); stroke-width: 2; }
.node.success .badge-ok { opacity: 1; }
.node.warn .node-box { stroke: var(--amber); stroke-width: 2; }
.node.warn .badge-warn { opacity: 1; }
.node.error .node-box { stroke: var(--red); stroke-width: 2.5; fill: #2A1C21; }
.node.error .badge-err { opacity: 1; }
.node.skipped { opacity: .38; }
.node.success .node-run { fill: var(--green); }
.node.error .node-run { fill: var(--red); }
.node.warn .node-run { fill: var(--amber); }
.spinner { opacity: 0; transform-box: fill-box; transform-origin: center; }
.node.running .spinner { opacity: 1; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .edge.active, .node.running .node-box, .node.running .spinner { animation: none; }
}

/* panel */
.panel { border-top: 1px solid var(--line); background: var(--bg2); }
.panel-tabs { display: flex; align-items: center; gap: 4px; padding: 0 10px; border-bottom: 1px solid var(--line); }
.tab { background: none; border: 0; border-bottom: 2px solid transparent; color: var(--muted); font: 600 13px/1 var(--font); padding: 13px 10px 11px; cursor: pointer; }
.tab.is-active { color: var(--text); border-bottom-color: var(--accent); }
.panel-meta { margin-left: auto; font: 500 12px var(--mono); color: var(--dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; padding-left: 8px; }
.pane { height: 230px; overflow: auto; }
.log { list-style: none; margin: 0; padding: 8px 0; font: 500 12.5px/1.5 var(--mono); }
.log li { display: grid; grid-template-columns: 96px 22px minmax(0, 1fr) auto; gap: 8px; align-items: baseline; padding: 5px 14px; border-bottom: 1px solid rgb(42 43 55 / .5); }
.log li.log-empty, .inspector .log-empty { display: block; color: var(--dim); font-family: var(--font); font-size: 13px; padding: 14px; border: 0; }
.log .t { color: var(--dim); }
.log .s-ok { color: var(--green); } .log .s-err { color: var(--red); } .log .s-warn { color: var(--amber); } .log .s-info { color: var(--blue); } .log .s-run { color: var(--amber); }
.log .n { color: var(--text); overflow: hidden; text-overflow: ellipsis; }
.log .n small { color: var(--muted); font-size: 12px; }
.log .d { color: var(--muted); white-space: nowrap; }
.log li.summary .n { color: var(--green); font-weight: 600; }
.log li.summary.fail .n { color: var(--red); }

.inspector { padding: 12px 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.inspector h4 { margin: 0 0 6px; font: 600 12px var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.inspector .ins-head { grid-column: 1 / -1; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.inspector .ins-head strong { font-family: var(--display); font-size: 16px; }
.type-tag { font: 500 11px var(--mono); color: var(--accent2); background: rgb(255 109 90 / .1); border: 1px solid rgb(255 109 90 / .3); padding: 3px 7px; border-radius: 6px; }
.json { margin: 0; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font: 500 12px/1.55 var(--mono); color: #D6D6E3; overflow: auto; max-height: 300px; white-space: pre-wrap; word-break: break-word; }
.json .k { color: #9DB8FF; } .json .s { color: #A5E8B8; } .json .num { color: var(--amber); } .json .b { color: var(--accent2); }

/* ---------- OUTPUTS ---------- */
.outputs-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 16px; margin: 40px 0 16px; }
.outputs-head h3 { font-size: 22px; }
.outputs-head p { margin: 0; color: var(--muted); font-size: 14px; }
.outputs { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.out-empty { grid-column: 1 / -1; display: flex; gap: 16px; align-items: center; padding: 26px; color: var(--muted); }
.out-empty p { margin: 0; }
.out { padding: 18px; display: flex; flex-direction: column; gap: 12px; min-width: 0; animation: rise .4s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } }
@media (prefers-reduced-motion: reduce) { .out { animation: none; } }
.out-h { display: flex; align-items: center; gap: 10px; }
.out-h .tile { width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; flex: none; }
.out-h .tile .ico { width: 17px; height: 17px; }
.out-h h4 { margin: 0; font: 700 15px/1.2 var(--display); }
.out-h small { display: block; color: var(--dim); font: 500 11px var(--mono); margin-top: 2px; }
.out.span2 { grid-column: span 2; }

.score-wrap { display: flex; gap: 18px; align-items: center; }
.ring { width: 108px; height: 108px; flex: none; position: relative; }
.ring svg { width: 108px; height: 108px; transform: rotate(-90deg); }
.ring .track { fill: none; stroke: var(--line); stroke-width: 9; }
.ring .val { fill: none; stroke-width: 9; stroke-linecap: round; transition: stroke-dashoffset 1s ease; }
.ring .num { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; font: 800 30px/1 var(--display); }
.ring .num small { display: block; font: 500 11px var(--mono); color: var(--dim); margin-top: 3px; }
.rules { width: 100%; border-collapse: collapse; font-size: 13px; }
.rules td { padding: 6px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.rules td:last-child { text-align: right; font-family: var(--mono); white-space: nowrap; padding-left: 10px; }
.rules td small { display: block; color: var(--dim); font-size: 12px; }
.rules tr:last-child td { border-bottom: 0; font-weight: 700; }
.tier { display: inline-flex; align-items: center; gap: 6px; font: 700 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; padding: 7px 10px; border-radius: 999px; }
.tier-hot { background: rgb(255 109 90 / .14); color: var(--accent2); }
.tier-warm { background: rgb(245 181 68 / .14); color: var(--amber); }
.tier-cold { background: rgb(91 140 255 / .14); color: #9DB8FF; }
.tier-invalid { background: rgb(255 77 94 / .14); color: #FF8C97; }
.out p { margin: 0; color: var(--muted); font-size: 14px; }
.out p strong { color: var(--text); }

.wa { background: #0B141A; border-radius: 12px; padding: 14px; background-image: radial-gradient(rgb(255 255 255 / .03) 1px, transparent 1px); background-size: 14px 14px; }
.wa-bubble { background: #005C4B; color: #E9EDEF; border-radius: 10px 10px 2px 10px; padding: 9px 11px 6px; margin-left: auto; max-width: 92%; font-size: 14px; line-height: 1.45; white-space: pre-wrap; }
.wa-meta { display: block; text-align: right; font-size: 11px; color: #9FC9BE; margin-top: 4px; }
.slack { border-left: 4px solid #E01E5A; background: var(--bg); border-radius: 8px; padding: 10px 12px; font-size: 14px; line-height: 1.5; white-space: pre-wrap; color: #D9D9E3; }
.slack b { color: #fff; }
.mail { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; font-size: 14px; }
.mail-row { display: flex; gap: 8px; padding: 8px 12px; border-bottom: 1px solid var(--line); }
.mail-row span:first-child { color: var(--dim); min-width: 56px; }
.mail-body { padding: 12px; white-space: pre-wrap; color: #D0D0DC; line-height: 1.55; }
.sheet { width: 100%; border-collapse: collapse; font: 500 12px var(--mono); }
.sheet-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
.sheet th, .sheet td { padding: 7px 10px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.sheet th { background: #13241B; color: #8FD6AE; font-weight: 600; }
.sheet tr:last-child td { border-bottom: 0; }

/* ---------- NODE GRID ---------- */
.node-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.ncard { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.ncard-h { display: flex; gap: 10px; align-items: center; }
.ncard-h .tile { width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; flex: none; }
.ncard h3 { font-size: 15px; }
.ncard code { font-size: 11px; color: var(--dim); word-break: break-all; }
.ncard p { margin: 0; font-size: 14px; color: var(--muted); }
.ncard button { align-self: flex-start; margin-top: auto; }

/* ---------- IMPACT ---------- */
.impact-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 34px; }
.impact { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; position: relative; overflow: hidden; }
.impact::before { content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 56px; background: var(--accent); border-radius: 0 0 3px 0; }
.impact h3 { margin-bottom: 8px; }
.impact p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---------- IMPORT ---------- */
.import-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.steps { padding-left: 22px; margin: 24px 0 28px; color: var(--muted); }
.steps li { margin-bottom: 10px; padding-left: 4px; }
.steps li::marker { color: var(--accent); font-family: var(--mono); font-weight: 600; }
.steps strong, .steps em { color: var(--text); font-style: normal; }
.steps code, .out code { font-size: 13px; color: var(--accent2); background: rgb(255 109 90 / .08); padding: 1px 5px; border-radius: 5px; }
.code-card { overflow: hidden; }
.code-head { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--line); font: 600 12px var(--mono); color: var(--muted); }
.code-card pre { margin: 0; padding: 14px; overflow-x: auto; font-size: 12.5px; line-height: 1.6; color: #D6D6E3; border-bottom: 1px solid var(--line); }
.code-card pre:last-child { border-bottom: 0; }

/* ---------- FOOTER ---------- */
.footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--dim); font-size: 14px; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 30px; }
.footer p { margin: 0; }
.footer a { color: var(--accent2); font-weight: 600; text-decoration: none; }
.footer a:hover { text-decoration: underline; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1100px) {
  .lab-grid { grid-template-columns: 1fr; }
  .form-card { position: static; }
  .impact-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-inner { justify-content: space-between; }
  .hero { padding: 56px 0 50px; }
  .lede { font-size: 16px; }
  .facts { grid-template-columns: 1fr 1fr; }
  .flow-strip li:not(:last-child)::after, .flow-strip .fork + li::before { content: "↓"; }
  .flow-strip { flex-direction: column; align-items: flex-start; }
  .chip { white-space: normal; }
  .canvas-wrap { height: 420px; }
  .pane { height: 260px; }
  .inspector { grid-template-columns: 1fr; }
  .log li { grid-template-columns: 22px minmax(0, 1fr) auto; }
  .log .t { display: none; }
  .outputs { grid-template-columns: 1fr; }
  .out.span2 { grid-column: auto; }
  .impact-grid, .import-grid { grid-template-columns: 1fr; }
  .score-wrap { flex-direction: column; align-items: flex-start; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .section { padding: 64px 0; }
}