/* Layout: light "operations ledger" — wide hero with a live fleet panel, then
   alternating text/panel bands; mono for anything a machine would print. */
:root {
  --paper: #F6F7FB;
  --sheet: #FFFFFF;
  --ink: #141826;
  --ink-2: #4A5168;
  --ink-3: #8A90A6;
  --rule: #E1E4EE;
  --brand: #6A4BF0;
  --brand-ink: #FFFFFF;
  --brand-soft: #ECE8FF;
  --ok: #138A5B;
  --ok-soft: #E2F5EC;
  --warn: #B26A00;
  --warn-soft: #FFF2DC;
  --crit: #C7254E;
  --crit-soft: #FDE6EC;
  --panel: #10141F;
  --panel-2: #1A2030;
  --panel-ink: #E6E9F2;
  --panel-dim: #8C95AD;
  --f-display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --f-body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --paper: #0D1018; --sheet: #141926; --ink: #ECEEF5; --ink-2: #B3B9CC; --ink-3: #737B93;
  --rule: #252C3D; --brand: #9A82FF; --brand-ink: #0D1018; --brand-soft: #231D45;
  --ok: #4BD39A; --ok-soft: #10291F; --warn: #F2B24C; --warn-soft: #2E220D;
  --crit: #FF7392; --crit-soft: #33141D;
  --panel: #080A10; --panel-2: #141927; --panel-ink: #E6E9F2; --panel-dim: #8C95AD;
  color-scheme: dark;
} }
:root[data-theme="dark"] {
  --paper: #0D1018; --sheet: #141926; --ink: #ECEEF5; --ink-2: #B3B9CC; --ink-3: #737B93;
  --rule: #252C3D; --brand: #9A82FF; --brand-ink: #0D1018; --brand-soft: #231D45;
  --ok: #4BD39A; --ok-soft: #10291F; --warn: #F2B24C; --warn-soft: #2E220D;
  --crit: #FF7392; --crit-soft: #33141D;
  --panel: #080A10; --panel-2: #141927; --panel-ink: #E6E9F2; --panel-dim: #8C95AD;
  color-scheme: dark;
}

* { box-sizing: border-box; }
body { background: var(--paper); color: var(--ink); font: 16px/1.6 var(--f-body); }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--sheet); }
a { color: var(--brand); }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 4px; }
.wrap { max-width: 1160px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
h1, h2, h3 { font-family: var(--f-display); text-wrap: balance; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.3rem, 5.2vw, 4rem); line-height: 1.02; font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); line-height: 1.1; font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0; }
.mono { font-family: var(--f-mono); }
.label { font: 500 0.75rem/1 var(--f-mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-3); }


/* top bar */
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5; background: var(--sheet); border-bottom: 1px solid var(--rule); }
.top .wrap { display: flex; align-items: center; gap: 24px; min-height: 64px; flex-wrap: wrap; padding-block: 8px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font: 800 1.2rem/1 var(--f-display); }
.brand small { display: block; font: 400 0.7rem/1.3 var(--f-mono); color: var(--ink-3); letter-spacing: 0.04em; }
.nav { display: flex; gap: 20px; flex-wrap: wrap; flex: 1; }
.nav a { color: var(--ink-2); text-decoration: none; font-weight: 500; font-size: 0.95rem; }
.nav a:hover { color: var(--ink); }
.actions { display: flex; gap: 10px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 8px; font: 600 0.95rem/1 var(--f-body); text-decoration: none; border: 1px solid var(--rule); color: var(--ink); background: var(--sheet); cursor: pointer; }
.btn:hover { border-color: var(--ink-3); }
.btn-primary { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
.btn-primary:hover { filter: brightness(1.08); border-color: var(--brand); }
.btn-sm { padding: 8px 14px; font-size: 0.875rem; }
@media (max-width: 860px) { .nav { order: 3; flex-basis: 100%; gap: 16px; } }

/* hero */
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 56px; align-items: center; padding-block: 72px 64px; }
.hero .lead { font-size: 1.15rem; color: var(--ink-2); margin-top: 20px; max-width: 34em; }
.hero h1 em { font-style: normal; color: var(--brand); }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero .facts { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 28px; font: 0.85rem/1.4 var(--f-mono); color: var(--ink-3); }
.hero .facts b { color: var(--ink); font-weight: 500; }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; gap: 36px; padding-block: 44px; } }

/* fleet panel: the console, drawn */
.fleet { background: var(--panel); color: var(--panel-ink); border-radius: 14px; overflow: hidden; box-shadow: 0 30px 60px -30px rgba(20, 16, 60, 0.45); font-family: var(--f-mono); font-size: 0.8rem; min-width: 0; }
.fleet-bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 16px; background: var(--panel-2); color: var(--panel-dim); }
.fleet-bar b { color: var(--panel-ink); font-weight: 500; }
.dots { display: flex; gap: 6px; }
.dots i { width: 9px; height: 9px; border-radius: 50%; background: #39405A; display: block; }
.fleet-kpi { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-bottom: 1px solid #222A3D; }
.fleet-kpi div { padding: 14px 16px; border-right: 1px solid #222A3D; }
.fleet-kpi div:last-child { border-right: 0; }
.fleet-kpi span { display: block; color: var(--panel-dim); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; }
.fleet-kpi b { display: block; font: 700 1.5rem/1.2 var(--f-display); color: var(--panel-ink); font-variant-numeric: tabular-nums; }
.fleet-kpi .g { color: #4BD39A; } .fleet-kpi .y { color: #F2B24C; }
.rows { overflow-x: auto; }
.rows table { width: 100%; border-collapse: collapse; min-width: 440px; }
.rows td { padding: 9px 16px; border-bottom: 1px solid #1B2133; white-space: nowrap; font-variant-numeric: tabular-nums; }
.rows td:first-child { color: var(--panel-ink); }
.rows td.dim { color: var(--panel-dim); }
.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.7rem; }
.p-ok { background: #10291F; color: #4BD39A; }
.p-heal { background: #231D45; color: #B7A6FF; }
.p-warn { background: #2E220D; color: #F2B24C; }
.beat { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #4BD39A; margin-right: 8px; vertical-align: 1px; }
.fleet-log { padding: 12px 16px 16px; color: var(--panel-dim); line-height: 1.7; }
.fleet-log .t { color: #5F6884; }
.fleet-log .k { color: #B7A6FF; }
.fleet-log .g { color: #4BD39A; }
@media (prefers-reduced-motion: no-preference) {
  .beat { animation: beat 2.4s ease-in-out infinite; }
  .rows tr:nth-child(2) .beat { animation-delay: .4s; } .rows tr:nth-child(3) .beat { animation-delay: .9s; }
  .rows tr:nth-child(4) .beat { animation-delay: 1.3s; } .rows tr:nth-child(5) .beat { animation-delay: 1.8s; }
  @keyframes beat { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }
}

/* platform strip */
.strip { border-block: 1px solid var(--rule); background: var(--sheet); }
.strip .wrap { display: flex; flex-wrap: wrap; gap: 12px 36px; align-items: center; padding-block: 20px; }
.strip span { font: 500 0.95rem/1 var(--f-display); color: var(--ink-2); }

/* sections */
section.block .wrap { padding-block: 88px; }
.head { display: grid; gap: 14px; max-width: 46em; margin-bottom: 44px; }
.head p { color: var(--ink-2); font-size: 1.05rem; }

.areas { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: 12px; overflow: hidden; }
.area { background: var(--sheet); padding: 28px; display: grid; gap: 12px; align-content: start; }
.area .tag { font: 500 0.72rem/1 var(--f-mono); color: var(--brand); letter-spacing: 0.06em; text-transform: uppercase; }
.area p { color: var(--ink-2); font-size: 0.95rem; }
.area ul { margin: 4px 0 0; padding: 0; list-style: none; display: grid; gap: 6px; font-size: 0.9rem; }
.area li::before { content: "› "; color: var(--ink-3); font-family: var(--f-mono); }
@media (max-width: 960px) { .areas { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .areas { grid-template-columns: 1fr; } }

/* self-healing sequence */
.heal { background: var(--sheet); border-block: 1px solid var(--rule); }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; counter-reset: s; }
.step { display: grid; gap: 10px; align-content: start; padding-top: 18px; border-top: 3px solid var(--rule); }
.step:last-child { border-top-color: var(--ok); }
.step .n { font: 500 0.78rem/1 var(--f-mono); color: var(--ink-3); }
.step p { color: var(--ink-2); font-size: 0.95rem; }
.step code { font: 0.8rem/1.5 var(--f-mono); background: var(--paper); border: 1px solid var(--rule); padding: 8px 10px; border-radius: 6px; display: block; overflow-x: auto; white-space: nowrap; color: var(--ink); }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

/* screenshots */
.shots { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 16px; }
.shot { display: grid; gap: 10px; min-width: 0; }
.shot .frame { aspect-ratio: 16 / 10; max-width: 100%; border-radius: 10px; border: 1px dashed var(--ink-3); background: repeating-linear-gradient(135deg, var(--sheet) 0 12px, var(--paper) 12px 24px); display: grid; place-items: center; color: var(--ink-3); font: 0.8rem/1.4 var(--f-mono); text-align: center; padding: 16px; }
.shot figcaption { font-size: 0.9rem; color: var(--ink-2); }
.shot:first-child { grid-row: span 2; }
.shot:first-child .frame { aspect-ratio: auto; height: 100%; min-height: 260px; }
@media (max-width: 800px) { .shots { grid-template-columns: 1fr; } .shot:first-child { grid-row: auto; } .shot:first-child .frame { aspect-ratio: 16/10; height: auto; min-height: 0; } }

/* korthveil pairing */
.pair .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: center; }
.pair ul { margin: 20px 0 0; padding: 0; list-style: none; display: grid; gap: 14px; }
.pair li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 10px; color: var(--ink-2); }
.pair li b { color: var(--ink); font-weight: 600; }
.pair li::before { content: "✓"; color: var(--ok); font-weight: 600; }
.wire { background: var(--sheet); border: 1px solid var(--rule); border-radius: 12px; padding: 24px; font: 0.82rem/1.7 var(--f-mono); color: var(--ink-2); overflow-x: auto; }
.wire .row { display: flex; justify-content: space-between; gap: 16px; padding: 8px 0; border-bottom: 1px dashed var(--rule); white-space: nowrap; }
.wire .row:last-child { border-bottom: 0; }
.wire b { color: var(--ink); font-weight: 500; }
@media (max-width: 860px) { .pair .wrap { grid-template-columns: 1fr; } }

/* docs + help */
.docs .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: 48px; }
.doclist { display: grid; gap: 0; margin-top: 24px; border-top: 1px solid var(--rule); }
.doclist a { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--rule); color: var(--ink); text-decoration: none; font-weight: 500; }
.doclist a span { color: var(--ink-3); font: 0.8rem/1.6 var(--f-mono); white-space: nowrap; }
.doclist a:hover { color: var(--brand); }
.help { background: var(--sheet); border: 1px solid var(--rule); border-radius: 12px; padding: 24px; display: grid; gap: 16px; align-content: start; min-width: 0; }
.help label { font-weight: 600; }
.help input { width: 100%; padding: 12px 14px; font: 1rem var(--f-body); border: 1px solid var(--rule); border-radius: 8px; background: var(--paper); color: var(--ink); }
.help input:focus { outline: 2px solid var(--brand); outline-offset: 0; border-color: var(--brand); }
.answers { display: grid; gap: 10px; }
.ans { padding: 14px 16px; border-radius: 8px; background: var(--paper); display: grid; gap: 4px; }
.ans b { font-weight: 600; }
.ans p { color: var(--ink-2); font-size: 0.92rem; }
.ans .where { font: 0.75rem/1.4 var(--f-mono); color: var(--ink-3); }
.none { color: var(--ink-3); font-size: 0.92rem; }
@media (max-width: 860px) { .docs .wrap { grid-template-columns: 1fr; } }

/* closing */
.close { background: var(--brand-soft); }
.close .wrap { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: center; padding-block: 64px; }
.close p { color: var(--ink-2); margin-top: 10px; max-width: 36em; }
footer { border-top: 1px solid var(--rule); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 32px; justify-content: space-between; padding-block: 28px; color: var(--ink-3); font-size: 0.875rem; }
footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--ink-2); text-decoration: none; }

/* ---------- inner pages ---------- */
.nav a[aria-current="page"] { color: var(--brand); }
.h1-sub { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.06; font-weight: 800; }
.narrow { max-width: 820px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.fine { color: var(--ink-3); font-size: 0.85rem; margin-top: 20px; max-width: 60em; }

/* features */
.ftoc { display: flex; flex-wrap: wrap; gap: 8px; }
.ftoc a { padding: 8px 14px; border: 1px solid var(--rule); border-radius: 999px; text-decoration: none; color: var(--ink); background: var(--sheet); font-weight: 500; font-size: 0.9rem; }
.ftoc a span { color: var(--ink-3); font-family: var(--f-mono); font-size: 0.8rem; margin-left: 4px; }
.fcat { margin-top: 56px; scroll-margin-top: 90px; }
.fcat h2 { padding-bottom: 14px; border-bottom: 2px solid var(--ink); }
.flist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; }
.feat { padding: 20px 0; border-bottom: 1px solid var(--rule); display: grid; gap: 6px; align-content: start; }
.feat p { color: var(--ink-2); font-size: 0.93rem; }
@media (max-width: 760px) { .flist { grid-template-columns: 1fr; } }

/* compare */
.cmp-wrap { overflow-x: auto; border: 1px solid var(--rule); border-radius: 12px; background: var(--sheet); }
.cmp { width: 100%; border-collapse: collapse; min-width: 720px; font-size: 0.93rem; }
.cmp th, .cmp td { padding: 14px 16px; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
.cmp tbody tr:last-child th, .cmp tbody tr:last-child td { border-bottom: 0; }
.cmp thead th { font: 700 1rem/1.2 var(--f-display); background: var(--paper); }
.cmp thead th.so { color: var(--brand); }
.cmp tbody th { font-weight: 600; width: 32%; }
.cmp tbody th small { display: block; font-weight: 400; color: var(--ink-3); font-size: 0.82rem; margin-top: 2px; }
.cmp td:nth-child(2) { background: var(--brand-soft); }
.mk { display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; font-size: 0.75rem; font-weight: 700; margin-right: 4px; }
.c-yes .mk { background: var(--ok-soft); color: var(--ok); }
.c-no .mk { background: var(--crit-soft); color: var(--crit); }
.c-part .mk { background: var(--warn-soft); color: var(--warn); }
.c-na .mk { background: var(--paper); color: var(--ink-3); }
.c-na { color: var(--ink-3); }

/* guides */
.doc { max-width: 820px; }
.crumb { display: inline-block; margin-bottom: 18px; font: 500 0.85rem var(--f-mono); text-decoration: none; }
.ontoc { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 20px 0 8px; padding: 14px 0; border-block: 1px solid var(--rule); }
.ontoc a { text-decoration: none; font-weight: 500; font-size: 0.92rem; }
.topic { margin-top: 44px; scroll-margin-top: 90px; }
.topic .intro, .htopic .intro { color: var(--ink-2); margin-top: 10px; }
.topic dl, .htopic dl { margin: 20px 0 0; display: grid; gap: 0; }
.topic dt, .htopic dt { font-weight: 600; padding-top: 16px; border-top: 1px solid var(--rule); }
.topic dd, .htopic dd { margin: 6px 0 16px; color: var(--ink-2); font-size: 0.95rem; }

/* help center */
.hsearch { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; margin-bottom: 32px; }
.hsearch input { flex: 1 1 280px; min-width: 0; padding: 14px 16px; font: 1rem var(--f-body); border: 1px solid var(--rule); border-radius: 10px; background: var(--sheet); color: var(--ink); }
.hsearch input:focus { outline: 2px solid var(--brand); outline-offset: 0; border-color: var(--brand); }
.hsearch span { font: 0.85rem var(--f-mono); color: var(--ink-3); }
.hlayout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 40px; align-items: start; }
.htoc { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 84px); display: grid; gap: 2px; }
.htoc a { display: flex; justify-content: space-between; gap: 8px; padding: 7px 10px; border-radius: 6px; text-decoration: none; color: var(--ink-2); font-size: 0.9rem; }
.htoc a:hover { background: var(--sheet); color: var(--ink); }
.htoc a span { font: 0.75rem var(--f-mono); color: var(--ink-3); }
.hsec { margin-bottom: 40px; scroll-margin-top: 90px; }
.hsec h2 { font-size: 1.4rem; margin-bottom: 12px; }
.htopic { border: 1px solid var(--rule); border-radius: 10px; background: var(--sheet); margin-bottom: 8px; scroll-margin-top: 90px; }
.htopic summary { cursor: pointer; padding: 14px 18px; font-weight: 600; }
.htopic .hbody { padding: 0 18px 8px; }
@media (max-width: 820px) { .hlayout { grid-template-columns: 1fr; } .htoc { position: static; display: flex; flex-wrap: wrap; } }
.cmp tr.grp th { background: var(--paper); font: 700 1.05rem/1.3 var(--f-display); padding-top: 22px; color: var(--ink); }
.cmp tr.grp th small { display: block; font: 400 0.82rem/1.4 var(--f-body); color: var(--ink-3); margin-top: 2px; }
.cmp tr.grp + tr th, .cmp tr.grp + tr td { border-top: 0; }