/* Reprosia — dark-first, glass and glow. Tokens, then components. */
:root {
  --bg: #070914;
  --bg-2: #0C1022;
  --panel: rgba(255, 255, 255, 0.055);
  --panel-strong: rgba(255, 255, 255, 0.09);
  --panel-line: rgba(255, 255, 255, 0.16);
  --text: #F6F7FC;
  --text-2: #CBD1E8;
  --text-3: #9BA4C8;
  --accent: #FFB347;
  --accent-2: #FF6A1A;
  --accent-3: #FFD27A;
  --grad: linear-gradient(115deg, #FFD27A 0%, #FF9A3D 52%, #FF6A1A 100%);
  --ok: #3DDC97;
  --ok-soft: rgba(61, 220, 151, 0.15);
  --bad: #FF6B81;
  --bad-soft: rgba(255, 107, 129, 0.15);
  --info-soft: rgba(255, 179, 71, 0.13);
  --code-bg: rgba(3, 5, 14, 0.72);
  --btn-ink: #1A0F05;
  --aurora-1: rgba(60, 72, 210, 0.30);
  --aurora-2: rgba(124, 58, 200, 0.26);
  --aurora-3: rgba(255, 106, 26, 0.16);
  --grid: rgba(255, 255, 255, 0.035);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
  --net-link: #C9CCFF; --net-node: #FFFFFF; --net-pulse: #FFB347; --net-glow: #FFB347; --net-label: #FFE2B0;
  --bracket: #FF7A2F;
  --font-head: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 32px);
  --r: 6px;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #F6F6FA; --bg-2: #ECECF4;
  --panel: rgba(255, 255, 255, 0.78); --panel-strong: #FFFFFF; --panel-line: rgba(11, 14, 26, 0.16);
  --text: #0B0E1A; --text-2: #373D5C; --text-3: #565D7E;
  --accent: #B8570A; --accent-2: #D9480F; --accent-3: #9A3412;
  --grad: linear-gradient(115deg, #B45309 0%, #EA580C 55%, #C2410C 100%);
  --ok: #0F7A56; --ok-soft: rgba(15, 122, 86, 0.12); --bad: #C0243F; --bad-soft: rgba(192, 36, 63, 0.10);
  --info-soft: rgba(184, 87, 10, 0.10); --code-bg: rgba(11, 14, 26, 0.05); --btn-ink: #FFFFFF;
  --aurora-1: rgba(60, 72, 210, 0.10); --aurora-2: rgba(124, 58, 200, 0.08); --aurora-3: rgba(255, 106, 26, 0.10);
  --grid: rgba(11, 14, 26, 0.05); --shadow: 0 20px 50px rgba(30, 40, 80, 0.14);
  --net-link: #373D5C; --net-node: #0B0E1A; --net-pulse: #D9480F; --net-glow: #D9480F; --net-label: #0B0E1A;
  --bracket: #D9480F;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; min-height: 100vh; position: relative; overflow-x: clip;
  background: var(--bg); color: var(--text);
  font: 400 1.0625rem/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
/* Aurora and grid sit behind everything */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(60rem 38rem at 12% -8%, var(--aurora-1), transparent 60%),
    radial-gradient(52rem 36rem at 92% 2%, var(--aurora-2), transparent 62%),
    radial-gradient(44rem 30rem at 50% 112%, var(--aurora-3), transparent 60%),
    var(--bg);
}
body::after {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 55% at 50% 0%, #000 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 55% at 50% 0%, #000 20%, transparent 75%);
}
img, svg, canvas { max-width: 100%; display: block; }
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--accent-2); color: #fff; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--text); color: var(--bg); padding: 8px 14px; z-index: 100; border-radius: 6px; }
.skip:focus { left: 8px; }
.wrap { width: min(100% - 2 * var(--gutter), var(--wrap)); margin-inline: auto; }

/* Type */
h1, h2 { font-family: var(--font-head); font-weight: 600; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(2.5rem, 6vw, 4.9rem); line-height: 1.03; letter-spacing: -0.04em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.8rem); line-height: 1.1; letter-spacing: -0.03em; }
h3 { font: 600 1.1rem/1.35 var(--font-body); margin: 0; letter-spacing: -0.005em; }
p { margin: 0 0 1em; max-width: 66ch; }
.lead { font-size: clamp(1.1rem, 1.6vw, 1.3rem); line-height: 1.6; color: var(--text-2); max-width: 56ch; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.muted { color: var(--text-3); }
.small { font-size: 0.9rem; }
code, .mono { font-family: var(--font-mono); font-size: 0.88em; }

/* Glass surfaces */
.glass, .ledger, .tile, .panel, .layers, .table-wrap, .callout, .code {
  --mx: 50%; --my: 0%;
  position: relative;
  background: var(--panel); border: 1px solid var(--panel-line); border-radius: var(--r);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}
.glass::before, .tile::before, .ledger::before, .panel::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .25s;
  background: radial-gradient(380px circle at var(--mx) var(--my), var(--info-soft), transparent 60%);
}
.glass:hover::before, .tile:hover::before, .ledger:hover::before, .panel:hover::before { opacity: 1; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 70%, transparent); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); border-bottom: 1px solid var(--panel-line); }
.bar { display: flex; align-items: center; gap: 24px; min-height: 66px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font: 600 1.28rem/1 var(--font-head); color: var(--text); text-decoration: none; letter-spacing: -0.03em; }
.brand-mark { width: 26px; height: 26px; color: var(--accent); }
.nav { display: flex; gap: 2px; margin-left: auto; align-items: center; }
.nav-link { color: var(--text-2); text-decoration: none; padding: 8px 12px; border-radius: 999px; font-size: 0.95rem; }
.nav-link:hover { background: var(--panel-strong); color: var(--text); }
.nav-link[aria-current="page"] { color: var(--text); background: var(--panel-strong); box-shadow: inset 0 0 0 1px var(--panel-line); }
.nav-link.is-demo { color: var(--accent); }
.icon-btn { background: var(--panel); border: 1px solid var(--panel-line); color: var(--text-2); border-radius: 999px; padding: 7px 14px; font: inherit; font-size: 0.88rem; cursor: pointer; margin-left: 8px; }
.icon-btn:hover { color: var(--text); border-color: var(--text-3); }
.menu-btn { display: none; margin-left: auto; }

/* Buttons */
.btn { display: inline-block; padding: 13px 22px; border-radius: 999px; font: 600 0.98rem/1.2 var(--font-body); text-decoration: none; border: 0; background: var(--grad); color: var(--btn-ink); cursor: pointer; box-shadow: 0 0 0 1px rgba(255,255,255,.12) inset, 0 10px 34px -8px color-mix(in srgb, var(--accent-2) 70%, transparent); transition: transform .15s, box-shadow .2s; }
.btn:hover { transform: translateY(-1px); text-decoration: none; box-shadow: 0 0 0 1px rgba(255,255,255,.2) inset, 0 14px 40px -6px color-mix(in srgb, var(--accent-2) 85%, transparent); }
.btn-ghost { background: var(--panel); color: var(--text); box-shadow: 0 0 0 1px var(--panel-line) inset; }
.btn-ghost:hover { background: var(--panel-strong); box-shadow: 0 0 0 1px var(--text-3) inset; }
.btn-small { padding: 8px 14px; font-size: 0.88rem; }
.btn[disabled] { opacity: .4; cursor: not-allowed; transform: none; box-shadow: none; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

/* Sections */
.section { padding-block: clamp(56px, 8vw, 104px); position: relative; }
.section-head { max-width: 46rem; margin-bottom: clamp(28px, 4vw, 48px); }
.section-head p { color: var(--text-2); margin-top: 14px; }
.page-head { padding-block: clamp(52px, 8vw, 104px) clamp(28px, 4vw, 44px); }
.page-head h1 { max-width: 17ch; font-size: clamp(2.3rem, 5vw, 4.1rem); }
.page-head .lead { margin-top: 20px; }

/* Hero */
.hero { position: relative; padding-block: clamp(44px, 6vw, 96px) clamp(48px, 6vw, 96px); overflow: hidden; }
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; opacity: .8;
  -webkit-mask-image: linear-gradient(#000 60%, transparent); mask-image: linear-gradient(#000 60%, transparent); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: center; }
.hero h1 { max-width: 12ch; }
.hero .lead { margin-top: 24px; }
.hero-note { margin-top: 26px; color: var(--text-3); font-size: 0.94rem; display: flex; gap: 8px; align-items: center; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 var(--ok); animation: pulse 2.2s infinite; flex: none; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.chip { font: 500 0.82rem/1 var(--font-mono); padding: 7px 11px; border-radius: 999px; background: var(--panel); border: 1px solid var(--panel-line); color: var(--text-2); }

/* Ledger */
.ledger { padding: 20px; box-shadow: var(--shadow); }
.ledger-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; position: relative; }
.ledger-title { font-weight: 600; font-size: 0.97rem; }
.ledger-status { font-size: 0.86rem; font-weight: 600; padding: 5px 12px; border-radius: 999px; background: var(--ok-soft); color: var(--ok); }
.ledger-status.is-broken { background: var(--bad-soft); color: var(--bad); }
.entries { list-style: none; margin: 0; padding: 0; position: relative; }
.entry { display: grid; grid-template-columns: 28px minmax(0, 1fr) auto; gap: 4px 12px; padding: 13px 0; border-top: 1px solid var(--panel-line); }
.entry-seq { font: 500 0.85rem/1.55 var(--font-mono); color: var(--accent); padding-top: 1px; }
.entry-main { min-width: 0; }
.entry-what { font-weight: 500; line-height: 1.4; overflow-wrap: anywhere; }
.entry-actor { color: var(--text-3); font-size: 0.88rem; }
.entry-hash { white-space: pre-wrap; grid-column: 2 / -1; font: 400 0.76rem/1.55 var(--font-mono); color: var(--text-3); overflow-wrap: anywhere; }
.entry-hash b { font-weight: 500; color: var(--text-2); }
.entry-hash .link-bad { color: var(--bad); font-weight: 600; }
.entry.is-altered .entry-what { color: var(--bad); }
.entry.is-bad { box-shadow: inset 3px 0 0 var(--bad); padding-left: 10px; margin-left: -10px; background: linear-gradient(90deg, var(--bad-soft), transparent 60%); }
.alter-btn { align-self: start; background: var(--panel); border: 1px solid var(--panel-line); border-radius: 999px; color: var(--text-2); font: inherit; font-size: 0.8rem; padding: 3px 11px; cursor: pointer; }
.alter-btn:hover { border-color: var(--bad); color: var(--bad); }
.entry.is-altered .alter-btn { border-color: var(--ok); color: var(--ok); }
.entry.appear { animation: appear .5s ease both; }
@keyframes appear { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.ledger-foot { border-top: 1px solid var(--panel-line); padding-top: 12px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: baseline; position: relative; }
.ledger-foot p { margin: 0; font-size: 0.83rem; color: var(--text-3); max-width: 46ch; }
.link-btn { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; font-size: 0.9rem; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }

/* Bento */
.bento { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
.tile { padding: 26px; display: flex; flex-direction: column; gap: 10px; text-decoration: none; color: var(--text); overflow: hidden; transition: border-color .2s, transform .2s; }
.tile:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--panel-line)); transform: translateY(-2px); text-decoration: none; }
.tile h3 { font: 600 1.25rem/1.25 var(--font-head); letter-spacing: -0.02em; position: relative; }
.tile p { color: var(--text-2); margin: 0; font-size: 0.97rem; position: relative; }
.tile .tag { align-self: flex-start; position: relative; }
.tile-go { margin-top: auto; padding-top: 10px; color: var(--accent); font-weight: 600; font-size: 0.93rem; position: relative; }
.t-a { grid-column: span 3; } .t-b { grid-column: span 3; } .t-c { grid-column: span 2; } .t-d { grid-column: span 2; } .t-e { grid-column: span 2; }
.tile-ico { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: var(--grad); color: var(--btn-ink); font: 700 1.05rem var(--font-mono); position: relative; }

/* Ruled rows become glass rows */
.rows { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.row { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr) minmax(0, 0.7fr); gap: 12px clamp(16px, 3vw, 40px); padding: 22px 26px; background: var(--panel); border: 1px solid var(--panel-line); border-radius: var(--r); align-items: start; }
.row p { margin: 0; color: var(--text-2); }
.row-side { justify-self: end; text-align: right; }

/* Tags */
.tag { display: inline-block; font-size: 0.8rem; font-weight: 600; padding: 3px 10px; border-radius: 999px; background: var(--info-soft); color: var(--accent); white-space: nowrap; }
.tag-live { background: var(--ok-soft); color: var(--ok); }
.tag-plan { background: transparent; color: var(--text-3); box-shadow: inset 0 0 0 1px var(--panel-line); }

/* Tables */
.table-wrap { overflow-x: auto; padding: 4px 22px; }
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th { text-align: left; font-weight: 600; font-size: 0.86rem; color: var(--text-3); padding: 14px 16px 12px 0; border-bottom: 1px solid var(--panel-line); }
td { padding: 18px 16px 18px 0; border-bottom: 1px solid var(--panel-line); vertical-align: top; color: var(--text-2); }
tbody tr:last-child td { border-bottom: 0; }
td:first-child { color: var(--text); font-weight: 600; width: 22%; }
td .pkg { font-family: var(--font-mono); font-weight: 500; font-size: 0.95rem; }

/* Columns */
.cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.col { padding: 26px; background: var(--panel); border: 1px solid var(--panel-line); border-radius: var(--r); }
.col h3 { margin-bottom: 12px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.col ul { margin: 0; padding-left: 1.1em; color: var(--text-2); }
.col li { margin-bottom: 8px; }
.col li::marker { color: var(--accent); }

/* Layers */
.layers { display: grid; grid-template-columns: 1fr 1.25fr 1fr; overflow: hidden; }
.layer { padding: clamp(20px, 3vw, 30px); border-left: 1px solid var(--panel-line); }
.layer:first-child { border-left: 0; }
.layer-mid { background: linear-gradient(180deg, var(--info-soft), transparent); }
.layer h3 { margin-bottom: 10px; }
.layer ul { margin: 0; padding-left: 1.1em; color: var(--text-2); }
.layer li { margin-bottom: 6px; }
.layer li::marker { color: var(--accent); }

/* Steps */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; display: grid; gap: 10px; }
.step { counter-increment: s; display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 4px 14px; padding: 16px 18px; background: var(--panel); border: 1px solid var(--panel-line); border-radius: 14px; }
.step::before { content: counter(s); width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font: 600 0.95rem var(--font-mono); background: var(--grad); color: var(--btn-ink); }
.step p { margin: 4px 0 0; color: var(--text-2); font-size: 0.97rem; }

/* Code */
.code { padding: 18px 20px; overflow-x: auto; font: 400 0.86rem/1.75 var(--font-mono); margin: 0; background: var(--code-bg); color: var(--text); }
.code-label { font-size: 0.86rem; color: var(--text-3); margin: 0 0 8px; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); align-items: start; }

/* Callout */
.callout { padding: 24px 26px; max-width: 66ch; border-left: 3px solid var(--accent); border-radius: 4px var(--r) var(--r) 4px; }
.callout p { color: var(--text-2); }
.callout p:last-child { margin-bottom: 0; }

/* Definition list */
.defs { margin: 0; display: grid; gap: 12px; }
.defs div { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 2fr); gap: 8px 32px; padding: 20px 26px; background: var(--panel); border: 1px solid var(--panel-line); border-radius: var(--r); }
.defs dt { font-weight: 600; }
.defs dd { margin: 0; color: var(--text-2); }

/* Cases */
.case { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 12px clamp(20px, 4vw, 56px); padding: 28px; margin-bottom: 14px; background: var(--panel); border: 1px solid var(--panel-line); border-radius: var(--r); }
.case h3 { font: 600 1.3rem/1.25 var(--font-head); letter-spacing: -0.02em; }
.case dl { margin: 0; display: grid; grid-template-columns: 9rem minmax(0, 1fr); gap: 8px 16px; }
.case dt { color: var(--text-3); font-size: 0.93rem; }
.case dd { margin: 0; color: var(--text-2); }

/* Forms */
.form { display: grid; gap: 18px; max-width: 34rem; }
.field label, .label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.95rem; }
.field input, .field textarea, .field select, .input { width: 100%; font: inherit; color: var(--text); background: var(--code-bg); border: 1px solid var(--panel-line); border-radius: 12px; padding: 12px 14px; }
.field input:focus, .field textarea:focus, .field select:focus, .input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.field textarea { min-height: 150px; resize: vertical; }
.field .hint { font-size: 0.86rem; color: var(--text-3); margin: 6px 0 0; }

/* CTA */
.cta .wrap { position: relative; padding: clamp(32px, 6vw, 64px); border-radius: 24px; border: 1px solid var(--panel-line); overflow: hidden;
  background: radial-gradient(40rem 20rem at 90% -20%, var(--aurora-2), transparent 70%), radial-gradient(34rem 18rem at 0% 120%, var(--aurora-1), transparent 70%), var(--panel); }
.cta .section-head { margin-bottom: 0; }
.cta .lead { margin-top: 14px; }

/* Footer */
.site-footer { border-top: 1px solid var(--panel-line); padding-block: 44px 56px; font-size: 0.93rem; color: var(--text-3); margin-top: 24px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.site-footer h3 { font-size: 0.95rem; color: var(--text); margin-bottom: 10px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 6px; }
.site-footer a { color: var(--text-2); }
.disclaimer { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--panel-line); max-width: 80ch; font-size: 0.86rem; }

/* ----- Demo workbench ----- */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; padding: 6px; background: var(--panel); border: 1px solid var(--panel-line); border-radius: 999px; width: fit-content; max-width: 100%; margin-bottom: 28px; }
.tab { background: none; border: 0; color: var(--text-2); font: 600 0.93rem var(--font-body); padding: 10px 18px; border-radius: 999px; cursor: pointer; }
.tab:hover { color: var(--text); }
.tab[aria-selected="true"] { background: var(--grad); color: var(--btn-ink); }
.tabpanel[hidden] { display: none; }
.bench { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 18px; align-items: start; }
.panel { padding: 22px; }
.panel + .panel { margin-top: 16px; }
.panel h3 { margin-bottom: 4px; position: relative; }
.panel-sub { color: var(--text-3); font-size: 0.9rem; margin: 0 0 14px; position: relative; }
.stage { position: relative; }
.stage[data-locked="true"] { opacity: .45; pointer-events: none; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; position: relative; }
.pill { background: var(--panel); border: 1px solid var(--panel-line); color: var(--text-2); border-radius: 999px; padding: 8px 14px; font: 500 0.88rem var(--font-body); cursor: pointer; }
.pill:hover { color: var(--text); border-color: var(--text-3); }
.pill[aria-pressed="true"] { background: var(--info-soft); border-color: var(--accent); color: var(--accent); }
.codeview { min-height: 190px; max-height: 320px; overflow: auto; margin: 0; white-space: pre; position: relative; }
.codeview .caret { display: inline-block; width: 8px; height: 1.05em; background: var(--accent); vertical-align: -2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.edit-area { width: 100%; min-height: 190px; font: 400 0.86rem/1.75 var(--font-mono); color: var(--text); background: var(--code-bg); border: 1px solid var(--accent); border-radius: 12px; padding: 14px 16px; resize: vertical; }
.row-inline { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 12px; position: relative; }
.note { font-size: 0.86rem; color: var(--text-3); margin: 10px 0 0; position: relative; }
.note-strong { color: var(--accent); font-weight: 600; }
.seg { display: inline-flex; border: 1px solid var(--panel-line); border-radius: 999px; overflow: hidden; }
.seg button { background: none; border: 0; padding: 9px 16px; color: var(--text-2); font: 600 0.88rem var(--font-body); cursor: pointer; }
.seg button + button { border-left: 1px solid var(--panel-line); }
.seg button:hover { background: var(--panel-strong); color: var(--text); }
.verdict { margin-top: 12px; padding: 12px 14px; border-radius: 12px; font-size: 0.93rem; position: relative; }
.verdict.ok { background: var(--ok-soft); color: var(--ok); }
.verdict.bad { background: var(--bad-soft); color: var(--bad); }
.verdict.info { background: var(--info-soft); color: var(--text); }
.stack { display: grid; gap: 14px; position: relative; }
.q { padding: 16px 0; border-top: 1px solid var(--panel-line); position: relative; }
.q:first-of-type { border-top: 0; padding-top: 0; }
.q-text { font-weight: 500; margin: 0 0 10px; }
.q-tag { font: 500 0.78rem var(--font-mono); color: var(--accent); margin-right: 8px; }
.radar-wrap { display: grid; grid-template-columns: minmax(0, 360px) minmax(0, 1fr); gap: 24px; align-items: center; }
.radar text { fill: var(--text-2); font: 500 11px var(--font-mono); }
.score-big { font: 600 3rem/1 var(--font-head); letter-spacing: -0.04em; }
.gap-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.gap-list li { padding: 14px 16px; background: var(--code-bg); border: 1px solid var(--panel-line); border-radius: 12px; }
.gap-list strong { display: block; margin-bottom: 2px; }
.gap-list span { color: var(--text-2); font-size: 0.93rem; }
.search { display: flex; gap: 10px; position: relative; }
.search .input { flex: 1; }
.result { padding: 18px 20px; border: 1px solid var(--panel-line); border-radius: 14px; background: var(--code-bg); }
.result h4 { margin: 0 0 6px; font: 600 1.02rem/1.35 var(--font-body); }
.result p { margin: 0 0 8px; color: var(--text-2); }
.result .meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font-size: 0.82rem; color: var(--text-3); }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid, .split, .case, .bench, .radar-wrap { grid-template-columns: minmax(0, 1fr); }
  .layers, .cols { grid-template-columns: minmax(0, 1fr); }
  .layer { border-left: 0; border-top: 1px solid var(--panel-line); }
  .layer:first-child { border-top: 0; }
  .row { grid-template-columns: minmax(0, 1fr); }
  .row-side { justify-self: start; text-align: left; }
  .defs div { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .foot-grid { grid-template-columns: minmax(0, 1fr); }
  .case dl { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .case dd { margin-bottom: 10px; }
  .bento { grid-template-columns: minmax(0, 1fr); }
  .t-a, .t-b, .t-c, .t-d, .t-e { grid-column: auto; }
}
@media (max-width: 860px) {
  .menu-btn { display: inline-block; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 66px; flex-direction: column; align-items: stretch; background: var(--bg-2); border-bottom: 1px solid var(--panel-line); padding: 10px var(--gutter) 18px; gap: 2px; }
  .nav.is-open { display: flex; }
  .nav-link { padding: 12px 14px; border-radius: 10px; }
  .icon-btn { margin: 8px 0 0; align-self: flex-start; }
  .menu-btn { margin: 0 0 0 auto; align-self: center; }
  .bar { position: relative; }
}
@media (max-width: 760px) {
  .table-wrap { overflow: visible; padding: 4px 18px; }
  table, tbody, tr, td { display: block; min-width: 0; width: auto; }
  table { min-width: 0 !important; }
  thead { position: absolute; left: -9999px; }
  tr { padding: 14px 0; border-bottom: 1px solid var(--panel-line); }
  tbody tr:last-child { border-bottom: 0; }
  td { border: 0; padding: 4px 0; width: auto; }
  td:first-child { width: auto; font-size: 1.05rem; }
  td[data-label]::before { content: attr(data-label); display: block; font-size: 0.8rem; color: var(--text-3); font-weight: 600; margin-top: 6px; }
  td:first-child::before { display: none; }
  .search { flex-direction: column; }
  .tabs { border-radius: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .entry.appear, .pulse, .codeview .caret { animation: none; }
  .btn, .tile { transition: none; }
}
@media print {
  .site-header, .actions, .cta, .hero-canvas { display: none; }
  body { background: #fff; color: #000; }
  body::before, body::after { display: none; }
}

/* selected state for segmented answers */
.seg button[aria-pressed="true"] { background: var(--info-soft); color: var(--accent); }


/* ======== Hybrid: flight recorder instruments + constellation night sky ======== */
h1, h2 { font-family: var(--font-head); font-weight: 400; }
h1 { font-size: clamp(3.4rem, 7.8vw, 6.9rem); line-height: 0.95; letter-spacing: -0.03em; }
h2 { font-size: clamp(2.4rem, 4.8vw, 4rem); line-height: 1.02; letter-spacing: -0.025em; }
h1 em, h2 em { font-style: italic; padding: 0 0.12em 0 0.02em; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.page-head h1 { font-size: clamp(2.9rem, 6.2vw, 5.2rem); max-width: 16ch; }
.hero h1 { max-width: 11ch; }
.brand { font: 400 1.75rem/1 var(--font-head); letter-spacing: -0.01em; }
.brand-mark { color: var(--accent-2); }
.tile h3, .case h3 { font: 400 1.75rem/1.1 var(--font-head); letter-spacing: -0.01em; }
.score-big { font: 400 3.4rem/1 var(--font-head); }
.nav-link[aria-current="page"] { box-shadow: inset 0 0 0 1px var(--panel-line); }
.nav-link.is-demo { color: var(--accent); }
.btn { border-radius: 6px; }
.btn-ghost, .icon-btn, .tab, .seg, .pill, .alter-btn, .ledger-status, .tag, .chip { border-radius: 6px; }
.tabs { border-radius: 10px; }
.tab { border-radius: 6px; }
.ledger-status { border-radius: 4px; }
.cta .wrap { border-radius: 10px; border-left: 6px solid var(--accent-2); }
.hero { padding-block: clamp(56px, 8vw, 120px); }
.hero-canvas { opacity: 1; }
.hero-note { margin-top: 24px; }

/* timestamps like flight telemetry */
.entry { grid-template-columns: 68px minmax(0, 1fr) auto; }
.entry-seq { color: var(--accent); }
.entry-seq::before { content: "T+00:0"; }

/* instrument corner brackets */
.ledger, .tile, .panel, .agent, .card, .col, .layers { position: relative; }
.ledger::after, .tile::after, .panel::after, .agent::after, .card::after, .col::after, .layers::after {
  content: ""; position: absolute; inset: -1px; pointer-events: none; border-radius: inherit;
  background:
    linear-gradient(var(--bracket), var(--bracket)) top left / 16px 2px no-repeat,
    linear-gradient(var(--bracket), var(--bracket)) top left / 2px 16px no-repeat,
    linear-gradient(var(--bracket), var(--bracket)) bottom right / 16px 2px no-repeat,
    linear-gradient(var(--bracket), var(--bracket)) bottom right / 2px 16px no-repeat;
}
.ledger { box-shadow: var(--shadow), 0 0 80px -24px rgba(255, 106, 26, 0.55); }
.tile:hover { border-color: color-mix(in srgb, var(--accent-2) 55%, var(--panel-line)); }

/* new sections */
.agents { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.agent, .card, .note { display: flex; flex-direction: column; gap: 10px; padding: 26px; background: var(--panel); border: 1px solid var(--panel-line); border-radius: var(--r); }
.agent h3, .card h3, .note h3 { font: 400 1.75rem/1.08 var(--font-head); letter-spacing: -0.01em; }
.agent p, .card p, .note p { flex: 1; color: var(--text-2); font-size: 0.97rem; margin: 0; }
.agent .tag, .card .tag, .col .tag, .note .tag { align-self: flex-start; }
.st { font: 500 0.78rem var(--font-mono); color: var(--accent); }
.loop { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 0; padding: 0; list-style: none; counter-reset: l; }
.loop li { counter-increment: l; padding: 9px 16px; border: 1px solid var(--panel-line); background: var(--panel); border-radius: 6px; font-weight: 500; }
.loop li::before { content: counter(l); margin-right: 10px; color: var(--accent); font-family: var(--font-mono); }
.fine { margin: 20px 0 0; color: var(--text-3); font-size: 0.95rem; max-width: 70ch; }
.start, .notes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.links { display: flex; gap: 14px; flex-wrap: wrap; }
.lnk { font-weight: 600; }
.note { border-top: 3px solid var(--accent-2); }
.ladder { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 16px; }
.col h3 { font: 400 1.75rem/1.08 var(--font-head); letter-spacing: -0.01em; }
.col ul { margin: 12px 0 0; padding-left: 1.1em; }
.col li { margin-bottom: 10px; }
.pkgs { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 34px; }
.pkgs a { font: 500 0.85rem var(--font-mono); padding: 8px 14px; border: 1px solid var(--panel-line); border-radius: 6px; color: var(--text-2); text-decoration: none; }
.pkgs a:hover { border-color: var(--accent); color: var(--text); }
@media (max-width: 960px) { .agents, .start, .notes, .ladder { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 640px) { .entry { grid-template-columns: 60px minmax(0, 1fr) auto; } }
.hero h1 { font-size: clamp(3rem, 5.6vw, 5.3rem); max-width: 13ch; }

.proof { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 28px; }
.proof-label { font: 500 .8rem var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); margin-right: 4px; }
.proof .chip { text-decoration: none; color: var(--text); }
.proof .chip:hover { border-color: var(--accent); color: var(--accent); }

/* Dropdown navigation */
.nav { gap: 4px; }
.dd { position: relative; }
.dd-btn { background: none; border: 0; font: inherit; font-size: 0.95rem; cursor: pointer; display: inline-flex; align-items: center; gap: 7px; }
.dd-btn .chev { transition: transform .15s; opacity: .8; }
.dd.is-open .dd-btn .chev { transform: rotate(180deg); }
.dd.is-open .dd-btn, .dd.has-current .dd-btn { background: var(--panel-strong); color: var(--text); }
.dd-menu { display: none; position: absolute; top: calc(100% + 10px); left: 0; min-width: 300px; padding: 8px; background: var(--bg-2); border: 1px solid var(--panel-line); border-radius: 10px; box-shadow: var(--shadow); z-index: 60; }
.dd.is-open .dd-menu { display: block; }
.dd-item { display: block; padding: 10px 12px; border-radius: 8px; text-decoration: none; color: var(--text); }
.dd-item b { display: block; font-weight: 600; font-size: .98rem; }
.dd-item small { display: block; color: var(--text-3); font-size: .85rem; margin-top: 2px; }
.dd-item:hover, .dd-item:focus-visible { background: var(--panel-strong); }
.dd-item[aria-current="page"] { box-shadow: inset 3px 0 0 var(--accent); }
@media (max-width: 860px) {
  .dd-btn { width: 100%; justify-content: flex-start; pointer-events: none; font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); padding: 14px 14px 4px; }
  .dd-btn .chev { display: none; }
  .dd.is-open .dd-btn, .dd.has-current .dd-btn { background: none; }
  .dd-menu { display: block; position: static; min-width: 0; padding: 0; border: 0; box-shadow: none; background: none; }
  .dd-item { padding: 10px 14px; }
}

/* Card links: no underlined paragraphs */
a.card, a.tile { text-decoration: none; color: inherit; }
a.card .lnk, a.card .tile-go { color: var(--accent); text-decoration: none; font-weight: 600; }
a.card:hover .lnk { text-decoration: underline; }
a.card:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--panel-line)); }

/* Theme button: a small outlined square with a sun or moon, tilts on hover and spins when pressed */
.theme-switch { display: inline-flex; align-items: center; gap: 8px; margin-left: 8px; padding: 0; background: none; border: 0; color: var(--accent); cursor: pointer; font: inherit; }
.ts-box { position: relative; display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--accent); border-radius: 9px; background: color-mix(in srgb, var(--accent) 7%, transparent); transition: transform .25s ease, background .2s; }
.theme-switch:hover .ts-box { transform: rotate(14deg); background: color-mix(in srgb, var(--accent) 16%, transparent); }
.theme-switch:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 10px; }
.theme-switch:active .ts-box { transform: rotate(90deg) scale(.94); }
.ts-ico { grid-area: 1 / 1; transition: opacity .2s, transform .3s; }
.ts-sun { opacity: 0; transform: rotate(-60deg) scale(.6); }
.ts-moon { opacity: 1; }
.theme-switch[aria-pressed="true"] .ts-sun { opacity: 1; transform: none; }
.theme-switch[aria-pressed="true"] .ts-moon { opacity: 0; transform: rotate(60deg) scale(.6); }
.ts-label { display: none; font-size: .95rem; color: var(--text-2); }
@media (prefers-reduced-motion: reduce) { .ts-box, .ts-ico { transition: none; } .theme-switch:hover .ts-box, .theme-switch:active .ts-box { transform: none; } }
@media (max-width: 860px) {
  .theme-switch { order: 2; margin: 0 0 0 auto; align-self: center; flex: none; }
  .ts-label { display: none; }
  .menu-btn { order: 3; margin: 0 0 0 10px; min-height: 40px; padding: 8px 16px; flex: none; }
  .brand { min-width: 0; }
  .bar { gap: 8px; min-height: 60px; }
  .nav { order: 4; top: 100%; max-height: calc(100vh - 62px); max-height: calc(100dvh - 62px); overflow-y: auto; -webkit-overflow-scrolling: touch; overscroll-behavior: contain; padding-bottom: calc(24px + env(safe-area-inset-bottom)); }
  .nav-link { min-height: 44px; display: flex; align-items: center; }
  .dd-item { min-height: 44px; display: flex; flex-direction: column; justify-content: center; gap: 2px; }
  .dd-item small, .dd-item span { margin: 0; }
}

/* Field notes */
.eyebrow { font: 500 .82rem var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin: 0 0 14px; }
.prose-sec { padding-block: clamp(20px, 3vw, 36px); }
.prose { max-width: 760px; }
.prose h2 { font-size: clamp(1.7rem, 3.2vw, 2.3rem); margin-bottom: 14px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.prose p { color: var(--text-2); font-size: 1.05rem; line-height: 1.7; }
.prose p strong { color: var(--text); }
.prose pre.code { border: 1px solid var(--panel-line); border-radius: var(--r); margin: 16px 0 0; }
a.note { text-decoration: none; color: inherit; }
a.note .lnk { color: var(--accent); }
a.note:hover { border-color: var(--accent); }

/* About: portrait */
.person { display: grid; grid-template-columns: minmax(220px, 320px) minmax(0, 1fr); gap: clamp(24px, 5vw, 64px); align-items: center; }
.portrait { margin: 0; position: relative; aspect-ratio: 4 / 5; border-radius: var(--r); overflow: hidden; border: 1px solid var(--panel-line); background: var(--panel); }
.portrait img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }
.portrait::after { content: ""; position: absolute; inset: -1px; pointer-events: none;
  background: linear-gradient(var(--bracket), var(--bracket)) top left / 18px 2px no-repeat, linear-gradient(var(--bracket), var(--bracket)) top left / 2px 18px no-repeat,
              linear-gradient(var(--bracket), var(--bracket)) bottom right / 18px 2px no-repeat, linear-gradient(var(--bracket), var(--bracket)) bottom right / 2px 18px no-repeat; }
.person-text h2 { margin-bottom: 16px; }
.person-text p { max-width: 62ch; }
@media (max-width: 720px) { .person { grid-template-columns: minmax(0, 1fr); } .portrait { max-width: 260px; } }
.trail td:first-child { width: 5%; } .trail td:nth-child(6) { font-family: var(--font-mono); font-size: .85rem; white-space: nowrap; }

/* Risk question on service items; jump chips; anchor offset */
.ask { display: block; color: var(--accent); font-weight: 500; margin-bottom: 6px; }
section[id] { scroll-margin-top: 84px; }
.proof a.chip { text-decoration: none; }
.sec-lead { padding-bottom: 0; }
.sec-lead + section { padding-top: 24px; }
.page-head + .sec-lead { padding-top: 24px; }


/* Demo page additions */
.check { display: flex; gap: 10px; align-items: center; margin: 0 0 8px; font-size: 0.92rem; color: var(--text-2); cursor: pointer; }
.check input { width: 18px; height: 18px; margin: 0; accent-color: var(--accent); flex: none; }
.note.note-warn { color: var(--text-2); border-left: 3px solid var(--accent); padding-left: 10px; }
.btn.is-done[disabled] { opacity: 1; background: var(--ok-soft); color: var(--ok); box-shadow: inset 0 0 0 1px var(--ok); }
.entries.is-clock .entry { grid-template-columns: 84px minmax(0, 1fr) auto; }
.entries.is-clock .entry-seq { font-size: 0.78rem; white-space: nowrap; }
.entries.is-clock .entry-seq::before { content: none; }
@media (max-width: 640px) { .entries.is-clock .entry { grid-template-columns: 76px minmax(0, 1fr) auto; } }
/* In the demo, .note is small helper text. A site-wide .note card style (field-note cards) otherwise boxes it. */
.tabpanel .note, .ledger .note { display: block; padding: 0; background: none; border: 0; border-radius: 0; gap: 0; }
.tabpanel .note.note-warn { border-left: 3px solid var(--accent); padding-left: 10px; }

/* Demo round 2: stale reviews, status text, readable log */
[hidden] { display: none !important; }
.flow { margin: 0 0 16px; color: var(--text-2); font-size: 0.95rem; max-width: 80ch; }
.flow b { color: var(--text); }
.btn.is-done[disabled] { background: none; box-shadow: none; border: 0; padding: 4px 0; cursor: default; color: var(--ok); font-weight: 600; }
.btn.is-done[disabled]::before { content: "\2713\00a0"; }
.rv-status { margin: 0 0 12px; padding: 8px 12px; border-left: 3px solid var(--ok); font-size: 0.9rem; color: var(--text); background: var(--ok-soft); }
.rv-status.is-stale { border-left-color: var(--bad); background: var(--bad-soft); font-weight: 600; }
.verdict.bad, .verdict.warn { color: var(--text); border-left: 3px solid var(--bad); }
.verdict.warn { background: rgba(255, 106, 26, 0.14); border-left-color: var(--accent); }
.tabpanel .panel-sub, .tabpanel .note, .ledger .note { color: var(--text-2); }
.bench .entry-actor { color: var(--text-2); font-size: 0.9rem; }
.bench .entry-hash { color: var(--text-2); font-size: 0.8rem; }
.bench .ledger { position: sticky; top: 72px; }
.bench > div:first-child { padding-bottom: 24vh; }
.bench .entries { max-height: calc(100vh - 360px); min-height: 220px; overflow-y: auto; padding-right: 4px; }
@media (max-width: 960px) {
  .bench .ledger { position: relative; top: auto; }
  .bench > div:first-child { padding-bottom: 0; }
  .bench .entries { max-height: 420px; }
}

/* ======== Flight recorder ======== */
:root {
  --bg:#0B0D10; --bg-2:#101418; --panel:#14181E; --panel-strong:#1B2027; --panel-line:#2D353F;
  --text:#F4F6F9; --text-2:#BDC6D2; --text-3:#8D98A6;
  --accent:#FF6A1A; --accent-2:#FF6A1A; --accent-3:#FFC857;
  --grad:linear-gradient(115deg,#FF6A1A,#FF6A1A);
  --aurora-1:rgba(255,106,26,0); --aurora-2:rgba(255,106,26,0); --aurora-3:rgba(255,106,26,.16);
  --net-link:#FF9A5C; --net-node:#FFB27F; --net-pulse:#FF6A1A; --net-glow:#FFC857; --net-label:#FFC857;
  --font-head:"Barlow Condensed","Arial Narrow",sans-serif; --font-body:"Barlow",system-ui,sans-serif; --r:3px;
}
:root[data-theme="light"] {
  --bg:#F5F3EF; --bg-2:#ECE9E3; --panel:#FFFFFF; --panel-strong:#FFFFFF; --panel-line:#CFC9BE;
  --text:#14110D; --text-2:#3E3A33; --text-3:#5C574E;
  --accent:#C2410C; --accent-2:#C2410C; --accent-3:#9A3412;
  --grad:linear-gradient(115deg,#C2410C,#C2410C);
  --aurora-1:rgba(194,65,12,0); --aurora-2:rgba(194,65,12,0); --aurora-3:rgba(194,65,12,.10);
  --net-link:#8A5A3C; --net-node:#5C3A22; --net-pulse:#C2410C; --net-glow:#C2410C; --net-label:#14110D;
  --bracket:#C2410C; --btn-ink:#FFFFFF; --code-bg:rgba(20,17,13,.05); --shadow:0 18px 44px rgba(60,40,20,.14);
}
body { font-size: 1.06rem; }
h1, h2, h3, .brand, .tile h3, .case h3, .agent h3, .card h3, .note h3, .col h3, .score-big { font-family: var(--font-head); font-weight: 700; }
h1 { font-weight: 800; letter-spacing: -0.015em; line-height: .96; }
h1 em, h2 em { font-style: normal; background: none; -webkit-text-fill-color: var(--accent); color: var(--accent); padding: 0; }
.hero h1 { font-size: clamp(3.2rem, 6.4vw, 6rem); max-width: 14ch; }
.brand { font-weight: 800; font-size: 1.6rem; }
.btn { border-radius: 3px; background: var(--accent); color: var(--btn-ink); box-shadow: 0 10px 30px -12px var(--accent); }
.btn-ghost, .btn.btn-ghost { background: transparent; color: var(--text); box-shadow: inset 0 0 0 1.5px var(--panel-line); }
.ledger, .tile, .panel, .agent, .card, .col, .layers { background: var(--panel); backdrop-filter: none; }
.tag, .chip, .tab, .pill, .loop li { border-radius: 2px; }