/* ChipLeap site. One accent (solder-mask green), copper only inside data visuals. */
:root {
  --paper: #f6f7f5;
  --white: #ffffff;
  --ink: #0e1311;
  --ink-2: #29312d;
  --muted: #57605b;
  --faint: #646c67;
  --line: #e1e5e2;
  --green: #0f7a4f;
  --green-ink: #0b6340;
  --green-soft: #e4f1ea;
  --copper: #b8692e;
  --dark: #0d1512;
  --dark-2: #15201b;
  --dark-line: #24312b;
  --dark-text: #e7ece9;
  --dark-muted: #9aa8a1;
  --fp-sram: #3a6f8c;
  --fp-accel: #0f7a4f;
  --fp-buffer: #6fae8d;
  --fp-cpu: #b8692e;
  --fp-soc: #8d948f;
  --fp-phy: #4a4f6e;
  --display: "Space Grotesk", "IBM Plex Sans", system-ui, sans-serif;
  --sans: "IBM Plex Sans", -apple-system, "Segoe UI", system-ui, sans-serif;
  /* Figures: Plex has plain, even numerals; Space Grotesk's flagged 1 reads oddly in data. */
  --num: "IBM Plex Sans", -apple-system, "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --shell: 1180px;
  --radius: 10px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
code { font-family: var(--mono); font-size: 0.88em; }
p code, li code, td code, span code { background: rgba(14, 19, 17, 0.06); padding: 1px 6px; border-radius: 4px; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 4px; }
.shell { max-width: var(--shell); margin: 0 auto; padding: 0 28px; }
.narrow { max-width: 780px; }
.nb { white-space: nowrap; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.small { font-size: 14.5px; color: var(--muted); }
.small a, .section-head p a, details a { color: var(--green-ink); text-underline-offset: 3px; }

/* Navigation */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(246, 247, 245, 0.86); backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; gap: 32px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 600 19px var(--display); letter-spacing: -0.01em; }
.nav nav { display: flex; gap: 26px; margin-left: 12px; }
.nav nav a, .link-github { text-decoration: none; font-size: 15px; color: var(--ink-2); }
.nav nav a:hover, .link-github:hover { color: var(--green-ink); }
.nav-cta { margin-left: auto; display: flex; align-items: center; gap: 18px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; height: 46px; padding: 0 22px; border-radius: 8px; font: 500 16px var(--sans); text-decoration: none; transition: background 0.15s, border-color 0.15s, color 0.15s; }
.btn-sm { height: 38px; padding: 0 16px; font-size: 14.5px; }
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-ink); }
.btn-ghost { border: 1px solid #c9d0cc; color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); }

/* Hero */
.hero { padding: 64px 0 40px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: center; }
.pill { display: inline-block; font-size: 13.5px; color: var(--green-ink); background: var(--green-soft); padding: 5px 12px; border-radius: 999px; text-decoration: none; margin-bottom: 26px; }
.pill:hover { background: #d6eadf; }
.hero h1 { font: 600 clamp(42px, 5.6vw, 72px)/1.02 var(--display); letter-spacing: -0.035em; margin: 0 0 24px; }
.lead { font-size: 19.5px; line-height: 1.55; color: var(--muted); margin: 0 0 32px; max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.cmd { display: flex; align-items: center; gap: 12px; background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 10px 10px 10px 16px; max-width: 520px; }
.cmd code { flex: 1; min-width: 0; font-size: 13px; line-height: 1.5; overflow-wrap: break-word; color: var(--ink-2); background: none; padding: 0; }
.copy { flex: none; border: 1px solid var(--line); background: var(--paper); color: var(--muted); font: 500 13px var(--sans); padding: 6px 11px; border-radius: 6px; cursor: pointer; }
.copy:hover { color: var(--ink); border-color: #c9d0cc; }

.hero-art { margin: 0 -60px 0 0; position: relative; }
@media (max-width: 1240px) { .hero-art { margin-right: 0; } }
/* The whole frame drifts, so the callouts stay on the blocks they point at. */
.art-frame { position: relative; transform: translateY(var(--lift, 0px)); transition: transform 0.2s linear; }
.art-frame img { width: 100%; display: block; }
.hero-art figcaption { font-size: 13.5px; color: var(--faint); margin: 4px 0 0 8%; }
.callout { position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -50%); pointer-events: none; }
.callout .dot { position: absolute; left: 0; top: 0; width: 9px; height: 9px; margin: -4.5px 0 0 -4.5px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 3px var(--green); }
.callout .dot i { display: none; }
.callout-key { display: none; }
.callout .tag { position: absolute; left: var(--tx, 34px); top: var(--ty, -40px); white-space: nowrap; background: rgba(255, 255, 255, 0.94); border: 1px solid var(--line); border-radius: 6px; padding: 5px 10px; font-size: 13px; color: var(--ink-2); box-shadow: 0 6px 18px -10px rgba(14, 19, 17, 0.35); }
.callout .tag b { display: block; font: 600 13.5px var(--display); color: var(--ink); }
.callout.left .tag { transform: translateX(-100%); }
.callout svg { position: absolute; left: 0; top: 0; overflow: visible; }
.callout line { stroke: var(--green); stroke-width: 1.5; }
.js .callout { opacity: 0; transition: opacity 0.5s ease; }
.js .callout.on { opacity: 1; }

/* Works-with band */
.band-works { padding: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--white); }
.works { display: flex; align-items: center; gap: 32px; padding-top: 20px; padding-bottom: 20px; flex-wrap: wrap; }
.works span { font-size: 14px; color: var(--faint); }
.works ul { display: flex; flex-wrap: wrap; gap: 10px 30px; list-style: none; margin: 0; padding: 0; }
.works li { font: 500 16px var(--display); color: var(--ink-2); letter-spacing: -0.01em; }

/* Sections */
section { padding: 104px 0; }
.section-head { max-width: 760px; margin-bottom: 52px; }
.section-head h2, .assistant h2, .start h2, .faq h2 { font: 600 clamp(32px, 3.6vw, 46px)/1.08 var(--display); letter-spacing: -0.03em; margin: 0 0 18px; }
.section-head p { font-size: 18.5px; color: var(--muted); margin: 0; }

/* Story: the agent designs a chip */
.story { background: var(--white); border-bottom: 1px solid var(--line); }
.story-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 64px; }
.story-steps { list-style: none; margin: 0; padding: 0; }
.story-steps li { min-height: 46vh; padding: 28px 0 28px 22px; border-left: 2px solid var(--line); color: var(--faint); transition: color 0.3s, border-color 0.3s; }
.story-steps li.active { border-left-color: var(--green); color: var(--ink-2); }
.story-steps .n { font: 500 13px var(--sans); color: var(--faint); display: block; margin-bottom: 8px; }
.story-steps h3 { font: 600 24px/1.2 var(--display); letter-spacing: -0.02em; margin: 0 0 10px; color: inherit; }
.story-steps li.active h3 { color: var(--ink); }
.story-steps p { margin: 0 0 10px; font-size: 16.5px; }
.story-steps .delta { font-size: 14.5px; color: var(--muted); }
.story-steps .delta b { color: var(--green-ink); font-weight: 600; }
.story-panel { position: relative; }
.panel-card { position: sticky; top: 92px; background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 22px 22px 18px; }
.panel-top { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 14px; }
.panel-top .k { display: block; font-size: 12.5px; color: var(--faint); }
.panel-top .v { display: block; font: 600 17px var(--num); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fp { width: 100%; height: auto; display: block; background: radial-gradient(circle at 50% 45%, #fff 0, var(--paper) 70%); border-radius: 8px; }
.fp .die { fill: #1d2622; }
.fp .core { fill: #26302b; }
.fp .pad { fill: #b9a06a; }
.fp .blk { stroke: #1d2622; stroke-width: 1.5; }
.fp .lbl { font: 500 11px var(--sans); fill: #fff; pointer-events: none; }
.fp .scale { font: 12px var(--sans); fill: var(--faint); }
.fp .scale-line { stroke: var(--faint); stroke-width: 1; }
.panel-meter { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-top: 14px; }
.meter-num span { display: block; font: 600 46px/1 var(--num); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.meter-num small { display: block; font-size: 13px; color: var(--faint); margin-top: 6px; }
.spark { width: 240px; max-width: 55%; height: auto; }
.spark .target { stroke: var(--copper); stroke-dasharray: 4 4; stroke-width: 1.2; }
.spark .path { fill: none; stroke: var(--line); stroke-width: 2; }
.spark .path-on { fill: none; stroke: var(--green); stroke-width: 2.4; }
.spark .pt { fill: var(--white); stroke: #c3cbc6; stroke-width: 1.5; }
.spark .pt.done { fill: var(--green); stroke: var(--green); }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 12.5px; color: var(--muted); margin-top: 14px; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }
.sw.sram { background: var(--fp-sram); } .sw.accel { background: var(--fp-accel); } .sw.buffer { background: var(--fp-buffer); }
.sw.cpu { background: var(--fp-cpu); } .sw.soc { background: var(--fp-soc); } .sw.phy { background: var(--fp-phy); }

/* Flow */
.flow { border-bottom: 1px solid var(--line); }
.flow-line { position: relative; }
.flow-track { position: absolute; left: 0; right: 0; top: 13px; height: 2px; background: var(--line); overflow: hidden; }
.pulse { position: absolute; top: 0; left: -20%; width: 20%; height: 2px; background: linear-gradient(90deg, transparent, var(--green), transparent); }
.flow-line.run .pulse { animation: pulse 3.2s ease-in-out infinite; }
@keyframes pulse { from { left: -20%; } to { left: 100%; } }
.flow-line ol { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 28px; counter-reset: s; }
.flow-line li { position: relative; padding-top: 44px; counter-increment: s; font-size: 15.5px; color: var(--muted); }
.flow-line li::before { content: counter(s); position: absolute; top: 0; left: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--paper); border: 2px solid var(--green); color: var(--green-ink); font: 600 13px/24px var(--display); text-align: center; }
.flow-line li b { display: block; font: 600 20px var(--display); color: var(--ink); letter-spacing: -0.015em; margin-bottom: 8px; }

/* Dark verification band */
.dark { background: var(--dark); color: var(--dark-text); }
.dark .section-head p { color: var(--dark-muted); }
.dark p code { background: rgba(255, 255, 255, 0.08); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--dark-line); border: 1px solid var(--dark-line); border-radius: var(--radius); overflow: hidden; margin-bottom: 40px; }
.stat { background: var(--dark); padding: 26px 24px; }
.stat .num { display: block; font: 600 44px/1 var(--num); letter-spacing: -0.02em; color: #fff; font-variant-numeric: tabular-nums; white-space: nowrap; }
.stat .num small { font-size: 0.45em; font-weight: 500; letter-spacing: 0; color: var(--dark-muted); margin-left: 6px; }
.stat .num em { font-style: normal; color: #5fd39b; }
.stat .lab { display: block; font-size: 14.5px; color: var(--dark-muted); margin-top: 12px; }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: center; margin: 0 0 56px; }
.layout img { width: 100%; height: auto; display: block; border-radius: 10px; border: 1px solid var(--dark-line); }
.layout h3 { font: 600 26px/1.2 var(--display); letter-spacing: -0.02em; color: #fff; margin: 0 0 12px; }
.layout p { color: var(--dark-muted); margin: 0 0 22px; }
.layout dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 24px; margin: 0; }
.layout dt { font-size: 13.5px; color: var(--dark-muted); }
.layout dd { margin: 3px 0 0; font: 600 21px/1.2 var(--num); font-variant-numeric: tabular-nums; color: #fff; }
.layout dd small { font: 500 13px var(--sans); color: var(--dark-muted); margin-left: 4px; }
.vt { width: 100%; border-collapse: collapse; font-size: 15.5px; }
.vt th, .vt td { text-align: left; padding: 14px 16px 14px 0; border-bottom: 1px solid var(--dark-line); vertical-align: top; }
.vt th { color: #fff; font-weight: 500; width: 22%; }
.vt td { color: var(--dark-muted); }
.vt .ok { color: #5fd39b; font-weight: 600; margin-right: 6px; }

/* Bring your own RTL: the full digital flow */
.rtl { background: var(--white); border-top: 1px solid var(--line); }
.rtl-flow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 28px; margin-bottom: 40px; }
.rtl-flow details { border: 0; border-top: 2px solid var(--green); padding: 16px 0 0; }
.rtl-flow details:last-of-type { border-bottom: 0; }
.rtl-flow summary { font: 600 19px/1.25 var(--display); letter-spacing: -0.015em; color: var(--ink); cursor: default; pointer-events: none; display: block; }
.rtl-flow summary::after, .rtl-flow details[open] summary::after { content: none; }
.rtl-flow summary small { display: block; font: 500 13px var(--sans); color: var(--faint); letter-spacing: 0; margin-top: 3px; }
.rtl-flow ol { list-style: none; margin: 14px 0 0; padding: 0; }
.rtl-flow li { padding: 12px 0 13px; border-bottom: 1px solid var(--line); font-size: 14.5px; line-height: 1.45; }
.rtl-flow li:last-child { border-bottom: 0; }
.rtl-flow li b { display: block; font: 600 15.5px var(--display); color: var(--ink); letter-spacing: -0.01em; }
.rtl-flow .tool { display: block; font-size: 13px; color: var(--faint); margin: 1px 0 5px; }
.rtl-flow .res { display: block; color: var(--ink-2); }
.rtl-flow .res::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--green); margin-right: 8px; vertical-align: 1px; }
.rtl-flow .res.warn::before { background: #c9a227; }
.rtl-flow .res.skip { color: var(--faint); }
.rtl-flow .res.skip::before { background: #cdd3cf; }
.rtl-cmds { max-width: 760px; }

/* Down to a chip */
.chip-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 56px; align-items: center; }
.chip-art { margin: 0; }
.chip-frame { position: relative; }
.chip-frame img { width: 100%; height: auto; display: block; border-radius: 10px; border: 1px solid var(--dark-line); }
.chip-art figcaption { font-size: 13.5px; color: var(--dark-muted); margin-top: 10px; }
.chip-section .callout .tag { background: rgba(13, 21, 18, 0.92); border-color: var(--dark-line); color: var(--dark-muted); box-shadow: 0 6px 18px -10px rgba(0, 0, 0, 0.6); }
.chip-section .callout .tag b { color: #fff; }
.chip-section .callout .dot { box-shadow: 0 0 0 3px #5fd39b; }
.chip-section .callout line { stroke: #5fd39b; }
.chip-section .callout-key { color: var(--dark-muted); }
.chip-section .callout-key b { color: #fff; }
.chip-section .callout-key li::before { border-color: #5fd39b; color: #5fd39b; }
.chip-facts dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 24px; margin: 0 0 26px; }
.chip-facts dt { font-size: 13.5px; color: var(--dark-muted); }
.chip-facts dd { margin: 3px 0 0; font: 600 23px/1.2 var(--num); font-variant-numeric: tabular-nums; color: #fff; }
.chip-facts dd small { font: 500 13px var(--sans); color: var(--dark-muted); margin-left: 4px; }
.chip-facts p { color: var(--dark-muted); margin: 0 0 14px; font-size: 16px; }
.chip-facts p a { color: #5fd39b; text-underline-offset: 3px; }

/* aispice */
.analog { border-top: 1px solid var(--line); }
.analog-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 64px; align-items: center; }
.analog h2 { font: 600 clamp(32px, 3.6vw, 46px)/1.08 var(--display); letter-spacing: -0.03em; margin: 0 0 18px; }
.analog p { color: var(--muted); font-size: 17.5px; margin: 0 0 26px; }
.handoff { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; counter-reset: h; }
.handoff li { position: relative; background: var(--white); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px 18px 62px; font-size: 15px; color: var(--muted); counter-increment: h; }
.handoff li::before { content: counter(h); position: absolute; left: 20px; top: 18px; width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--green); color: var(--green-ink); font: 600 13px/22px var(--display); text-align: center; }
.handoff li + li::after { content: ""; position: absolute; left: 32px; top: -15px; width: 2px; height: 14px; background: var(--green); }
.handoff b { display: block; font: 600 17px var(--display); color: var(--ink); letter-spacing: -0.01em; margin-bottom: 4px; }
.handoff b code { background: var(--green-soft); color: var(--green-ink); }

/* Assistant */
.assistant-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 64px; align-items: center; }
.assistant-copy p { color: var(--muted); font-size: 17.5px; }
.assistant-copy .cmd { margin: 24px 0 12px; }
.console { background: var(--dark); border-radius: 14px; overflow: hidden; box-shadow: 0 30px 60px -30px rgba(13, 21, 18, 0.55); }
.console-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid var(--dark-line); }
.console-bar i { width: 10px; height: 10px; border-radius: 50%; background: #2c3833; }
.console-bar span { margin-left: 10px; font: 13px var(--mono); color: var(--dark-muted); }
.console-body { padding: 22px 22px 26px; font-size: 14.5px; line-height: 1.6; min-height: 430px; }
.console-body p { margin: 0 0 14px; }
.c-user { color: #fff; background: var(--dark-2); border-radius: 8px; padding: 10px 14px; }
.c-tool { font: 13.5px var(--mono); color: #5fd39b; }
.c-tool::before { content: "tool  "; color: var(--dark-muted); }
.c-out { color: var(--dark-muted); padding-left: 14px; border-left: 2px solid var(--dark-line); }
.c-ai { color: var(--dark-text); }
.js .console-body p { opacity: 0; transform: translateY(6px); transition: opacity 0.35s ease, transform 0.35s ease; }
.js .console-body p.on { opacity: 1; transform: none; }

/* Calculator */
.calc-section { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.calc { border: 1px solid var(--line); border-radius: 14px; padding: 26px; display: grid; grid-template-columns: 1.6fr 0.8fr 1.6fr 0.7fr; gap: 18px 20px; background: var(--paper); }
.calc label { display: block; font-size: 13px; color: var(--muted); margin: 0 0 6px; }
.calc select { width: 100%; font: 15.5px var(--sans); color: var(--ink); background: var(--white); border: 1px solid #ccd3cf; border-radius: 8px; padding: 9px 10px; }
.calc .result { grid-column: 1 / -1; display: flex; align-items: baseline; gap: 14px; border-top: 1px solid var(--line); padding-top: 18px; }
.calc output { font: 600 54px/1 var(--num); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.calc .unit { font-size: 16px; color: var(--muted); }
.calc .verdict { grid-column: 1 / -1; margin: 0; font-size: 15.5px; color: var(--muted); }
.calc .verdict.bad { color: var(--copper); }

/* Comparison */
.table-scroll { overflow-x: auto; }
.cmp { width: 100%; border-collapse: collapse; font-size: 15.5px; min-width: 760px; }
.cmp th, .cmp td { padding: 15px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.cmp thead th { font: 600 15px var(--display); color: var(--ink-2); }
.cmp tbody th { font-weight: 500; color: var(--ink); width: 34%; }
.cmp td { color: var(--muted); }
.cmp .us { background: var(--green-soft); }
.cmp thead .us { color: var(--green-ink); border-radius: 8px 8px 0 0; }
.cmp td.y::before, .cmp td.p::before, .cmp td.n::before { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 8px; content: ""; vertical-align: 1px; }
.cmp td.y::before { background: var(--green); }
.cmp td.p::before { background: #c9a227; }
.cmp td.n::before { background: #cdd3cf; }
.fits .small { margin-top: 18px; }

/* Start */
.start-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 64px; align-items: center; }
.start p { color: var(--muted); font-size: 17.5px; margin: 0 0 26px; }
.terminal { margin: 0; background: var(--dark); color: var(--dark-text); border-radius: 14px; padding: 26px 28px; font: 14.5px/1.75 var(--mono); overflow-x: auto; }
.terminal code { background: none; padding: 0; }
.t-c { color: #7f8f87; }

/* FAQ */
.faq { border-top: 1px solid var(--line); }
details { border-top: 1px solid var(--line); padding: 18px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; list-style: none; font: 500 18px var(--display); letter-spacing: -0.01em; display: flex; justify-content: space-between; gap: 18px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--faint); font-size: 22px; line-height: 1; }
details[open] summary::after { content: "\2212"; }
details p { color: var(--muted); margin: 12px 0 0; }

/* Footer */
.foot { border-top: 1px solid var(--line); padding: 40px 0 56px; }
.foot-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 36px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 10px 24px; font-size: 15px; }
.foot nav a { text-decoration: none; color: var(--ink-2); }
.foot p { margin: 0 0 0 auto; font-size: 14px; color: var(--faint); }

@media (max-width: 980px) {
  .hero-grid, .story-grid, .assistant-grid, .start-grid, .chip-grid, .analog-grid { grid-template-columns: 1fr; }
  .rtl-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 28px; }
  .chip-grid, .analog-grid { gap: 36px; }
  .hero-art { margin: 0; }
  .nav nav { gap: 20px; margin-left: 0; }
  .nav-inner { gap: 20px; }
  .story-panel { order: -1; position: sticky; top: 63px; z-index: 6; background: var(--white); margin: 0 -28px; padding: 10px 28px 12px; box-shadow: 0 1px 0 var(--line); }
  .panel-card { position: static; display: grid; grid-template-columns: minmax(0, 46%) minmax(0, 1fr); gap: 0 18px; align-items: center; padding: 12px; }
  .panel-card .fp { grid-column: 1; grid-row: 1 / span 2; }
  .panel-top { grid-column: 2; grid-template-columns: 1fr; gap: 8px; margin: 0; align-self: end; }
  .panel-meter { grid-column: 2; margin-top: 12px; align-self: start; }
  .meter-num span { font-size: clamp(28px, 6vw, 42px); }
  .spark { display: none; }
  .legend { grid-column: 1 / -1; gap: 4px 12px; font-size: 12px; margin-top: 10px; }
  .story-grid { gap: 24px; }
  .story-steps li { min-height: 46vh; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .flow-line ol { grid-template-columns: 1fr; }
  .flow-track { display: none; }
  .flow-line li { padding: 0 0 0 44px; }
  .layout { grid-template-columns: 1fr; gap: 28px; }
  section { padding: 76px 0; }
}
@media (max-width: 860px) {
  .nav nav { display: none; }
}
@media (max-width: 640px) {
  .shell { padding: 0 18px; }
  .rtl-flow { grid-template-columns: 1fr; gap: 0; }
  .rtl-flow details { border-top: 1px solid var(--line); padding: 16px 0; }
  .rtl-flow details:last-of-type { border-bottom: 1px solid var(--line); }
  .rtl-flow summary { cursor: pointer; pointer-events: auto; display: flex; align-items: baseline; gap: 10px; }
  .rtl-flow summary small { display: inline; margin: 0; }
  .rtl-flow summary::after { content: "+"; margin-left: auto; color: var(--faint); font: 400 22px/1 var(--sans); }
  .rtl-flow details[open] summary::after { content: "\2212"; }
  .rtl-flow details[open] summary { margin-bottom: 0; }
  .chip-facts dd { font-size: 20px; }
  .handoff li { padding: 16px 16px 16px 54px; }
  .handoff li::before { left: 16px; }
  .handoff li + li::after { left: 28px; }
  .story-panel { margin: 0 -18px; padding: 10px 18px 12px; }
  .hero { padding-top: 40px; }
  .link-github { display: none; }
  .calc { grid-template-columns: 1fr 1fr; padding: 20px; }
  .calc > div:nth-child(1), .calc > div:nth-child(3) { grid-column: 1 / -1; }
  .calc > div:nth-child(1) { order: 1; } .calc > div:nth-child(2) { order: 2; }
  .calc > div:nth-child(3) { order: 4; } .calc > div:nth-child(4) { order: 3; }
  .calc .result { order: 6; } .calc .verdict { order: 7; }
  .calc > div:nth-child(2), .calc > div:nth-child(4) { grid-column: auto; }
  .calc output { font-size: 46px; }
  .stat { padding: 20px 18px; }
  .stat .num { font-size: 36px; }
  .stat .lab { font-size: 14px; }
  .console-body { min-height: 0; }
  .callout svg, .callout .tag { display: none; }
  .callout .dot { width: 22px; height: 22px; margin: -11px 0 0 -11px; box-shadow: 0 0 0 2px var(--green), 0 2px 8px rgba(14, 19, 17, 0.25); }
  .callout .dot i { display: block; width: 22px; font: 600 12px/22px var(--num); font-style: normal; font-variant-numeric: tabular-nums; text-align: center; color: var(--green-ink); }
  .callout-key { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; list-style: none; counter-reset: key; margin: 4px 0 14px; padding: 0; font-size: 13.5px; color: var(--muted); }
  .callout-key li { counter-increment: key; position: relative; padding-left: 26px; line-height: 1.35; }
  .callout-key li::before { content: counter(key); position: absolute; left: 0; top: 0; width: 18px; height: 18px; box-sizing: border-box; border-radius: 50%; border: 1.5px solid var(--green); color: var(--green-ink); font: 600 11px/15px var(--num); font-variant-numeric: tabular-nums; text-align: center; }
  .callout-key b { display: block; font-weight: 600; color: var(--ink-2); }
  .hero-art figcaption { margin-left: 0; }
  .terminal { font-size: 12.5px; padding: 20px 18px; white-space: pre-wrap; overflow-wrap: anywhere; }
  .foot p { margin-left: 0; }
}
@media (max-width: 820px) {
  .table-scroll { overflow: visible; }
  .cmp { min-width: 0; font-size: 15px; }
  .cmp thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .cmp tbody, .cmp tr, .cmp tbody th { display: block; }
  .cmp tr { padding: 18px 0 14px; border-bottom: 1px solid var(--line); }
  .cmp tbody th { width: auto; padding: 0 0 10px; border: 0; font: 600 16.5px/1.3 var(--display); letter-spacing: -0.01em; }
  .cmp td { display: flex; align-items: baseline; padding: 5px 0; border: 0; font-size: 14.5px; }
  .cmp td::after { content: attr(data-label); order: -1; flex: 0 0 47%; color: var(--faint); font-size: 13.5px; }
  .cmp td.us { background: var(--green-soft); color: var(--green-ink); border-radius: 6px; margin: 0 -8px 2px; padding: 6px 8px; }
  .cmp td::before { flex: none; }
}
@media (prefers-reduced-motion: reduce) {
  .flow-line.run .pulse { animation: none; }
  .js .callout, .js .console-body p { opacity: 1; transform: none; transition: none; }
}