/* A2K staging site. Tokens and look carried from the live a2knowledge.com build (July 2026). Light-only by brand. */
:root {
  color-scheme: light;
  --a2k-navy: #1E3C70;
  --a2k-navy-800: #16305C;
  --a2k-blue: #3457B5;
  --a2k-blue-600: #2C4A9C;
  --blue-100: #E6ECF8;
  --text-gray: #4B4B4B;
  --muted: #6F6F74;
  --secondary-gray: #8A8A8E;
  --light-bg: #F7F8FA;
  --white: #FFFFFF;
  --border: #D0D7DE;
  --hairline: #E3E1DA;
  --accent-purple: #8B4DAA;
  --accent-teal: #207870;
  --accent-orange: #D97B00;
  --slate: #6D8AD1;
  --hero-fg: #C3D0EA;
  --eyebrow-fg: #9FB4DC;
  --draft-bg: #FBF6E9;
  --draft-fg: #7A5A12;
  --font-sans: Arial, "Helvetica Neue", Helvetica, "Liberation Sans", system-ui, sans-serif;
  --mono: "SFMono-Regular", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-sans); color: var(--text-gray); background: var(--white); -webkit-font-smoothing: antialiased; line-height: 1.6; font-size: 18px; }
a { color: var(--a2k-blue); text-decoration: none; }
a:hover { color: var(--a2k-blue-600); text-decoration: underline; }
:focus-visible { outline: 3px solid rgba(52,87,181,.45); outline-offset: 2px; border-radius: 4px; }
p { margin: 0; text-wrap: pretty; }
h1, h2, h3 { margin: 0; color: var(--a2k-navy); line-height: 1.2; text-wrap: balance; }
h3, .h3 { font-size: 22px; font-weight: 700; color: var(--a2k-navy); }
img { display: block; max-width: 100%; height: auto; }

.wrap { max-width: 1280px; margin: 0 auto; padding-left: max(40px, env(safe-area-inset-left, 0px)); padding-right: max(40px, env(safe-area-inset-right, 0px)); }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--secondary-gray); }
.eyebrow-light { color: var(--eyebrow-fg); }
.h2 { font-size: 34px; font-weight: 700; color: var(--a2k-navy); }
.lead { font-size: 18px; line-height: 1.6; color: var(--a2k-navy); }
.stack { display: flex; flex-direction: column; gap: 18px; }
.sec { padding-block: 88px; }
.sec.alt { background: var(--light-bg); border-top: .5px solid var(--border); border-bottom: .5px solid var(--border); }
.sec.navy { background: var(--a2k-navy); color: var(--hero-fg); }
.sec.navy h2, .sec.navy h3 { color: var(--white); }
.head { display: flex; flex-direction: column; gap: 14px; margin-bottom: 44px; }

/* Draft strip */
.draft { background: var(--draft-bg); color: var(--draft-fg); font-size: 13px; border-bottom: .5px solid #E8D9B0; }
.draft .wrap { display: flex; flex-wrap: wrap; gap: 4px 18px; padding-block: 8px; }
.draft b { color: #5C430C; }

/* Header and nav (on navy, as live) */
.site-head { background: var(--a2k-navy); position: sticky; top: 0; z-index: 50; }
.site-head .wrap { height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.site-head .logo img { height: 32px; width: auto; }
@media (max-width: 960px) { .site-head .logo img { height: 28px; } }
.nav { display: flex; align-items: center; gap: 2px; }
.nav > a, .nav .dd > button { font: inherit; font-size: 15px; font-weight: 700; color: var(--hero-fg); padding: 10px 12px; border-radius: 6px; background: none; border: 0; cursor: pointer; text-decoration: none; }
.nav > a:hover, .nav .dd > button:hover { color: var(--white); background: rgba(255,255,255,.08); text-decoration: none; }
.nav > a[aria-current="page"], .nav .dd > button.current { color: var(--white); box-shadow: inset 0 -2px 0 var(--white); border-radius: 0; }
.nav > a.cta { background: var(--white); color: var(--a2k-navy); border-radius: 8px; margin-left: 10px; }
.nav > a.cta:hover { background: var(--blue-100); color: var(--a2k-navy); }
.dd { position: relative; }
.dd-menu { position: absolute; top: calc(100% + 6px); left: 0; min-width: 248px; background: var(--white); border: .5px solid var(--border); border-radius: 8px; padding: 8px; box-shadow: 0 8px 28px rgba(30,60,112,.14); display: flex; flex-direction: column; }
.dd-menu a { padding: 11px 14px; border-radius: 6px; font-size: 15px; font-weight: 700; color: var(--a2k-navy); }
.dd-menu a:hover { background: var(--light-bg); text-decoration: none; }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 30px; height: 30px; padding: 0; background: none; border: none; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: #fff; }
@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .nav { display: none; position: absolute; top: 80px; left: 0; right: 0; background: var(--white); border-bottom: .5px solid var(--border); box-shadow: 0 8px 28px rgba(30,60,112,.14); flex-direction: column; align-items: stretch; padding: 10px max(22px, env(safe-area-inset-right, 0px)) 16px max(22px, env(safe-area-inset-left, 0px)); }
  .nav.open { display: flex; }
  .nav > a, .nav .dd > button { color: var(--a2k-navy); text-align: left; width: 100%; }
  .nav > a:hover, .nav .dd > button:hover { background: var(--light-bg); color: var(--a2k-navy); }
  .nav > a[aria-current="page"], .nav .dd > button.current { color: var(--a2k-navy); box-shadow: inset 3px 0 0 var(--a2k-navy); }
  .dd-menu { position: static; box-shadow: none; border: 0; padding: 0 0 0 14px; min-width: 0; }
  .nav > a.cta { margin: 8px 0 0; background: var(--a2k-navy); color: var(--white); text-align: center; }
}

/* Hero (as live: navy, vertical rules, ring motif) */
.hero { background: var(--a2k-navy); position: relative; overflow: hidden; }
.hero .rules { position: absolute; inset: 0; opacity: .06; background: repeating-linear-gradient(90deg, transparent 0 46px, #fff 46px 47px); }
.hero .motif { position: absolute; right: max(0px, (100% - 1280px) / 2); top: 50%; transform: translateY(-50%); opacity: .35; width: 414px; height: 720px; pointer-events: none; }
.hero.sub .motif { width: 276px; height: 480px; opacity: .35; }
.hero .wrap { position: relative; padding-block: 132px 148px; display: flex; flex-direction: column; gap: 22px; }
.hero h1 { font-size: 60px; line-height: 1.14; font-weight: 700; color: #fff; }
.hero.sub .wrap { padding-block: 84px 92px; }
.hero.home .wrap { padding-bottom: 80px; }
.sec.gapq { padding-top: 48px; padding-bottom: 20px; }
.sec.gapq .head { margin-bottom: 16px; }
.sec.whatdoes { padding-top: 40px; }
.hero.sub h1 { font-size: 46px; }
.hero .sub-lead { font-size: 20px; line-height: 1.55; color: var(--hero-fg); }
@media (max-width: 900px) {
  .wrap { padding-left: max(22px, env(safe-area-inset-left, 0px)); padding-right: max(22px, env(safe-area-inset-right, 0px)); }
  .hero .motif { display: none; }
  .hero h1, .hero.sub h1 { font-size: 34px; }
  .hero .wrap, .hero.sub .wrap { padding-block: 64px 72px; }
  .sec { padding-block: 64px; }
  .h2 { font-size: 27px; }
}

/* Buttons */
.btn { display: inline-block; font: inherit; font-size: 15px; font-weight: 700; padding: 13px 22px; border-radius: 8px; border: .5px solid var(--a2k-navy); text-decoration: none; }
.btn:hover { text-decoration: none; }
.btn.primary { background: var(--a2k-navy); color: #fff; }
.btn.primary:hover { background: var(--a2k-navy-800); color: #fff; }
.btn.secondary { background: var(--white); color: var(--a2k-navy); }
.btn.secondary:hover { background: var(--light-bg); color: var(--a2k-navy); }
.btn.light { background: #fff; color: var(--a2k-navy); border-color: #fff; }
.btn.light:hover { background: var(--blue-100); color: var(--a2k-navy); }
.btns { display: flex; flex-wrap: wrap; gap: 12px; }

/* Grids and cards */
.g2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.g3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.g4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
@media (max-width: 900px) { .g2, .g3 { grid-template-columns: 1fr; } .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .g4 { grid-template-columns: 1fr; } }
.card { background: var(--light-bg); border: .5px solid var(--border); border-radius: 8px; padding: 26px 24px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.card.white { background: var(--white); }
.card p { line-height: 1.6; }
.step { border-top: 2px solid var(--a2k-navy); padding-top: 20px; display: flex; flex-direction: column; gap: 12px; }
.step .n { font-size: 28px; font-weight: 700; color: var(--a2k-blue); line-height: 1; }
.check { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 20px; }
.check li { padding-left: 28px; position: relative; line-height: 1.6; }
.check li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent-teal); font-weight: 700; }
.check li b { color: var(--a2k-navy); }
.navy .check li { color: var(--hero-fg); }
.navy .check li b { color: #fff; }
.navy .check li::before { color: #8FD3C9; }
.bul { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 12px; }
.bul b { color: var(--a2k-navy); }

/* Invested staircase */
.invested { list-style: none; margin: 72px 0 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.invested li { font-size: 34px; line-height: 1.3; color: var(--hero-fg); }
.invested li:nth-child(2) { margin-left: clamp(0px, 3vw, 36px); }
.invested li:nth-child(3) { margin-left: clamp(0px, 6vw, 72px); }
.invested b { color: #fff; }
.question { color: var(--a2k-navy); margin-bottom: 8px; }
@media (max-width: 1240px) { .invested li { font-size: 28px; } }
@media (max-width: 900px) { .invested li { font-size: 24px; } .hero-h1 br { display: none; } }

/* Graphic: role panels (deck slide 2) */
.roles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.role { background: var(--white); border: .5px solid var(--border); border-radius: 10px; padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.role .eyebrow { color: var(--accent-teal); }
.role.problem .eyebrow { color: var(--accent-orange); }
.role.a2k .eyebrow { color: var(--a2k-blue); }
.role h3 { font-size: 19px; }
.role p { font-size: 15px; }
.roles-bar { margin-top: 18px; background: var(--a2k-navy); color: #fff; border-radius: 8px; padding: 16px 20px; font-weight: 700; text-align: center; }
@media (max-width: 900px) { .roles { grid-template-columns: 1fr; } }

/* Graphic: gap diagram */
.gap { display: grid; grid-template-columns: 1fr minmax(90px, 170px) 1fr; max-width: 940px; margin-top: 32px; }
.gap .node { background: var(--white); border: .5px solid var(--border); border-radius: 8px; padding: 20px; min-width: 0; }
.gap .node .eyebrow { font-size: 12px; }
.gap .node .t { font-size: 18px; color: var(--a2k-navy); font-weight: 700; margin-top: 6px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.chip { font-family: var(--mono); font-size: 12px; padding: 3px 8px; border-radius: 999px; background: var(--light-bg); border: .5px solid var(--border); }
.chip.std { background: var(--blue-100); border-color: #C9D5F0; color: var(--a2k-navy); }
.gap .bridge { position: relative; display: flex; align-items: center; justify-content: center; }
.gap .bridge::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; border-top: 2px dashed var(--border); }
.gap .bridge span { position: relative; background: var(--a2k-navy); color: #fff; font-weight: 700; font-size: 13px; padding: 6px 14px; border-radius: 999px; }
@media (max-width: 640px) { .gap { grid-template-columns: 1fr; } .gap .bridge { padding-block: 20px; } .gap .bridge::before { left: 50%; right: auto; top: 0; bottom: 0; border-top: 0; border-left: 2px dashed var(--border); } }

/* Graphic: who does what lanes */
.lanes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border: .5px solid var(--border); border-radius: 10px; overflow: hidden; background: var(--white); }
.lane { padding: 24px; display: flex; flex-direction: column; gap: 10px; border-left: .5px solid var(--border); min-width: 0; }
.lane:first-child { border-left: 0; }
.lane .tag { display: inline-block; align-self: flex-start; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: #fff; padding: 4px 10px; border-radius: 999px; }
.lane.rules .tag { background: var(--accent-purple); }
.lane.model .tag { background: var(--accent-teal); }
.lane.team .tag { background: var(--a2k-navy); }
.lane h3 { font-size: 17px; }
.lane p { font-size: 15px; }
.lane ul { margin: 0; padding-left: 18px; font-size: 14px; color: var(--muted); display: flex; flex-direction: column; gap: 4px; }
@media (max-width: 900px) { .lanes { grid-template-columns: 1fr; } .lane { border-left: 0; border-top: .5px solid var(--border); } .lane:first-child { border-top: 0; } }

/* Tables */
.tablewrap { overflow-x: auto; border: .5px solid var(--border); border-radius: 6px; background: var(--white); }
table { border-collapse: collapse; width: 100%; min-width: 640px; font-size: 15px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: .5px solid var(--hairline); vertical-align: top; }
thead th { background: var(--a2k-navy); color: #fff; font-size: 14px; }
tbody th { color: var(--a2k-navy); font-weight: 700; }
td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; color: var(--a2k-navy); font-weight: 700; }
td.team { color: var(--accent-teal); font-weight: 700; }
tfoot td, tfoot th { background: var(--blue-100); color: var(--a2k-navy); font-weight: 700; border-bottom: 0; }
tr:last-child td, tr:last-child th { border-bottom: 0; }
.tnote { font-size: 13px; color: var(--muted); margin-top: 10px; max-width: none; }

/* Charts */
.fig { background: var(--white); border: .5px solid var(--border); border-radius: 8px; padding: 22px; min-width: 0; }
.fig h3 { font-size: 16px; margin-bottom: 14px; }
.fig .cap { font-size: 14px; color: var(--muted); margin-top: 14px; }
.legend { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 13px; margin-bottom: 14px; }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }
.brow { display: grid; grid-template-columns: 64px 1fr; gap: 12px; align-items: center; margin-bottom: 10px; }
.brow .l { font-size: 14px; font-weight: 700; color: var(--a2k-navy); }
.sbar { display: flex; height: 28px; border-radius: 4px; overflow: hidden; background: var(--light-bg); }
.sbar span { display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: #fff; font-variant-numeric: tabular-nums; overflow: hidden; white-space: nowrap; }
.s-std { background: var(--a2k-navy); } .s-ren { background: var(--slate); } .s-mis { background: var(--accent-orange); }
.hbar { height: 22px; background: var(--light-bg); border-radius: 4px; position: relative; }
.hbar .fill { position: absolute; top: 0; bottom: 0; left: 0; background: var(--a2k-blue); border-radius: 4px; }
.hbar .rng { position: absolute; top: 0; bottom: 0; background: #9FB3DF; border-radius: 4px; }
.hbar .a2k { position: absolute; left: 0; top: -4px; bottom: -4px; width: 3px; background: var(--accent-teal); border-radius: 2px; }
.hbar .v { position: absolute; top: 50%; transform: translateY(-50%); font-size: 12px; font-weight: 700; color: var(--a2k-navy); white-space: nowrap; font-variant-numeric: tabular-nums; padding: 0 6px; }
.axis { display: grid; grid-template-columns: 64px 1fr; gap: 12px; font-size: 12px; color: var(--muted); }
.axis div { display: flex; justify-content: space-between; font-variant-numeric: tabular-nums; }

/* Screenshot frame */
.shot { border: .5px solid var(--border); border-radius: 10px; overflow: hidden; background: var(--white); box-shadow: 0 1px 0 rgba(30,60,112,.04); }
.shot .bar { background: var(--light-bg); border-bottom: .5px solid var(--border); padding: 8px 12px; font-size: 12px; color: var(--muted); display: flex; gap: 6px; align-items: center; }
.shot .bar i { width: 9px; height: 9px; border-radius: 999px; background: var(--border); display: inline-block; }
.shot figcaption { font-size: 14px; color: var(--muted); padding: 12px 16px; border-top: .5px solid var(--border); }

/* Package graphic */
.pkg { background: var(--white); border: .5px solid var(--border); border-radius: 10px; padding: 24px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.pkg h4 { margin: 0 0 10px; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--secondary-gray); }
.pkg ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.pkg li { display: grid; grid-template-columns: 22px 1fr; gap: 8px; font-size: 15px; }
.pkg li::before { content: "▤"; color: var(--a2k-blue); }
.pkg li b { color: var(--a2k-navy); }
@media (max-width: 720px) { .pkg { grid-template-columns: 1fr; } }

/* Deployment diagrams */
.deploy { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.dcard { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.dcard h3 { font-size: 17px; }
.dcard p { font-size: 14px; color: var(--muted); }
.env { border: .5px solid var(--border); border-radius: 10px; background: #EAF4F3; padding: 14px; min-height: 170px; display: flex; flex-direction: column; gap: 10px; }
.env.a2khost { background: var(--blue-100); }
.env .lbl { font-size: 12px; font-weight: 700; color: var(--muted); }
.env .row { display: flex; gap: 10px; align-items: center; flex: 1; }
.box { border-radius: 8px; padding: 12px; font-size: 13px; font-weight: 700; text-align: center; flex: 1; min-width: 0; }
.box.yours { background: var(--accent-purple); color: #fff; }
.box.a2k { background: #fff; border: 1.5px solid var(--a2k-navy); color: var(--a2k-navy); }
.box small { display: block; font-weight: 400; font-size: 11px; margin-top: 2px; color: inherit; opacity: .85; }
.arrow { color: var(--accent-teal); font-weight: 700; flex: 0 0 auto; }
.nested { background: var(--accent-purple); border-radius: 8px; padding: 12px; flex: 1; display: flex; flex-direction: column; gap: 8px; color: #fff; font-size: 13px; font-weight: 700; text-align: center; }
@media (max-width: 900px) { .deploy { grid-template-columns: 1fr; } }

/* Spec engineering steps */
.spec { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; counter-reset: s; }
.spec div { border: .5px solid var(--border); border-radius: 8px; padding: 18px; background: var(--white); counter-increment: s; display: flex; flex-direction: column; gap: 8px; }
.spec div::before { content: counter(s); width: 26px; height: 26px; border-radius: 999px; background: var(--a2k-navy); color: #fff; font-size: 13px; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; }
.spec b { color: var(--a2k-navy); }
.spec p { font-size: 14px; }
@media (max-width: 900px) { .spec { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .spec { grid-template-columns: 1fr; } }

/* License model */
.lic { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.lic > div { border: .5px solid var(--border); border-radius: 10px; overflow: hidden; background: var(--white); }
.lic h3 { font-size: 15px; color: #fff; background: var(--a2k-navy); padding: 12px 16px; }
.lic > div:nth-child(2) h3 { background: var(--accent-purple); }
.lic > div:nth-child(3) h3 { background: var(--accent-teal); }
.lic ul { margin: 0; padding: 14px 16px 16px 32px; display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
@media (max-width: 900px) { .lic { grid-template-columns: 1fr; } }

/* Placeholders */
.ph { border: 1.5px dashed #B9C3D3; border-radius: 8px; background: repeating-linear-gradient(45deg, #FAFBFD, #FAFBFD 10px, #F3F5F9 10px, #F3F5F9 20px); padding: 22px; color: var(--muted); font-size: 14px; display: flex; flex-direction: column; gap: 6px; min-height: 180px; justify-content: center; }
.ph strong { color: var(--a2k-navy); font-size: 13px; letter-spacing: .06em; text-transform: uppercase; }
.note { background: var(--draft-bg); border: .5px solid #E8D9B0; color: var(--draft-fg); border-radius: 8px; padding: 12px 14px; font-size: 14px; max-width: none; }

/* Misc */
.facts { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; }
.facts li { padding: 14px 0; border-top: .5px solid var(--hairline); min-width: 0; }
.facts b { color: var(--a2k-navy); }
@media (max-width: 720px) { .facts { grid-template-columns: 1fr; } }
.trials { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.trials div { border: .5px solid var(--border); border-radius: 8px; padding: 14px; background: var(--white); font-size: 13px; color: var(--muted); }
.trials b { display: block; color: var(--a2k-navy); font-size: 16px; margin-bottom: 4px; }
@media (max-width: 820px) { .trials { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 32px; padding-block: 28px; border-top: .5px solid var(--border); }
.split:first-child { border-top: 0; padding-top: 0; }
@media (max-width: 720px) { .split { grid-template-columns: 1fr; gap: 10px; } }
.triggers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.triggers div { background: rgba(255,255,255,.08); border: .5px solid rgba(255,255,255,.25); border-radius: 8px; padding: 20px; color: var(--hero-fg); }
.triggers b { display: block; color: #fff; font-size: 18px; margin-bottom: 6px; }
.sec .triggers div { background: var(--white); border: .5px solid var(--border); color: var(--text-gray); }
.sec .triggers b { color: var(--a2k-navy); }
@media (max-width: 720px) { .triggers { grid-template-columns: 1fr; } }
.cmp thead th:first-child { width: 22%; }
.founder { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 32px; align-items: start; }
.founder-photo { width: 220px; height: auto; border-radius: 8px; }
@media (max-width: 640px) { .founder { grid-template-columns: 1fr; } }
.toggle { display: inline-flex; border: .5px solid #E8D9B0; border-radius: 8px; overflow: hidden; margin-left: 8px; vertical-align: middle; }
.toggle button { font: inherit; font-size: 13px; border: 0; padding: 5px 12px; background: #fff; color: var(--draft-fg); cursor: pointer; }
.toggle button[aria-pressed="true"] { background: var(--draft-fg); color: #fff; }
.email { font-family: var(--mono); color: #fff; font-size: 16px; user-select: all; }
#contact, #compare { scroll-margin-top: 100px; }

/* Footer */
.site-foot { background: var(--a2k-navy); color: var(--hero-fg); font-size: 14px; border-top: .5px solid rgba(255,255,255,.15); }
.site-foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; padding-block: 28px; }
.site-foot img { height: 22px; width: auto; }
.site-foot a { color: var(--hero-fg); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Mailing list sign-up */
.signup { background: var(--light-bg); border-top: .5px solid var(--border); padding-block: 56px; }
.signup .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px 40px; align-items: center; }
.signup-copy { display: flex; flex-direction: column; gap: 8px; }
.signup-form { display: flex; gap: 10px; }
.signup-form input { flex: 1; min-width: 0; font: inherit; font-size: 16px; padding: 12px 14px; border: .5px solid var(--border); border-radius: 8px; background: #fff; color: var(--text-gray); }
.signup-note { grid-column: 1 / -1; }
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
@media (max-width: 720px) { .signup .wrap { grid-template-columns: 1fr; } .signup-form { flex-direction: column; } }

/* Deployment profiles (Enterprise) */
.profiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.prof { background: var(--white); border: .5px solid var(--border); border-radius: 10px; padding: 22px; display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.ptag { align-self: flex-start; font-size: 12px; font-weight: 700; letter-spacing: .08em; color: #fff; background: var(--a2k-navy); border-radius: 999px; padding: 3px 10px; }
.dia { display: flex; flex-direction: column; gap: 8px; }
.zone { border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.zone.client { background: #EAF4F3; border: 1.5px dashed var(--accent-teal); }
.zone.a2k { background: var(--blue-100); border: 1px solid #C9D5F0; }
.zl { font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.nodes { display: flex; gap: 8px; }
.nd { flex: 1; min-width: 0; border-radius: 8px; padding: 10px 6px; font-size: 13px; font-weight: 700; text-align: center; background: #fff; border: 1.5px solid var(--a2k-navy); color: var(--a2k-navy); }
.nd.data { background: var(--accent-purple); border-color: var(--accent-purple); color: #fff; }
.nd.model { border-color: var(--accent-orange); color: #8A4E00; }
.cross { font-size: 13px; font-weight: 700; text-align: center; color: var(--accent-teal); }
.cross.none { color: var(--accent-teal); border: 1px solid #A9CFCB; background: #EAF4F3; border-radius: 8px; padding: 8px; }
.prof dl { margin: 0; display: flex; flex-direction: column; gap: 10px; }
.prof dt { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--secondary-gray); }
.prof dd { margin: 2px 0 0; font-size: 16px; line-height: 1.5; }
@media (max-width: 960px) { .profiles { grid-template-columns: 1fr; } }

/* Run results (Research Program) */
.rr { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); gap: 32px; align-items: start; }
.hl { list-style: none; margin: 28px 0 0; padding: 0; display: flex; flex-direction: column; gap: 18px; }
.hl li { display: grid; grid-template-columns: 40px 1fr; gap: 16px; align-items: start; }
.hl .n { width: 40px; height: 40px; border-radius: 999px; background: var(--a2k-navy); color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.hl b { color: var(--a2k-navy); }
.rr-panel { background: var(--blue-100); border-radius: 12px; padding: 28px; display: flex; flex-direction: column; gap: 10px; }
.rr-panel .eyebrow { color: var(--a2k-blue); }
.rr-panel h4 { margin: 14px 0 0; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--a2k-navy); }
.rr-panel dl { margin: 0; display: flex; flex-direction: column; gap: 10px; }
.rr-panel dl div { display: block; }
.rr-panel dt { display: inline; font-weight: 700; color: var(--a2k-navy); margin-right: 6px; }
.rr-panel dd { display: inline; margin: 0; }
@media (max-width: 960px) { .rr { grid-template-columns: 1fr; } }

.split .hl { margin-top: 8px; }
.pkg2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.pkg2 h4 { margin: 0 0 10px; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--a2k-navy); }
.pkg2 dl { margin: 0; display: flex; flex-direction: column; gap: 10px; }
.pkg2 dt { display: inline; font-weight: 700; color: var(--a2k-navy); margin-right: 6px; }
.pkg2 dd { display: inline; margin: 0; }
@media (max-width: 720px) { .pkg2 { grid-template-columns: 1fr; } }

.steps3 { margin: 0; padding-left: 26px; display: flex; flex-direction: column; gap: 10px; color: var(--a2k-navy); }
.steps3 li::marker { color: var(--a2k-blue); font-weight: 700; }
.split .spec { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 520px) { .split .spec { grid-template-columns: 1fr; } }

/* Case study */
.tablewrap.fit { width: fit-content; max-width: 100%; }
table.cs { width: auto; min-width: 0; }
table.cs tbody th { width: 330px; min-width: 220px; }
table.cs td.num { font-weight: 400; color: var(--text-gray); min-width: 84px; }
table.cs td:last-child, table.cs td.num:last-child { font-weight: 700; color: var(--a2k-navy); background: var(--blue-100); }
table.cs thead th:last-child { background: var(--a2k-navy-800); }
h4.pk { margin: 0 0 12px; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--a2k-navy); }
.flow { display: flex; flex-direction: column; gap: 12px; }
.flow-in, .flow-out { align-self: center; border: .5px solid var(--border); background: var(--white); border-radius: 8px; padding: 10px 18px; font-size: 15px; font-weight: 700; color: var(--a2k-navy); text-align: center; }
.flow-out { background: var(--accent-teal); border-color: var(--accent-teal); color: #fff; }
.flow-orch { background: var(--a2k-blue); color: #fff; border-radius: 8px; padding: 14px 18px; text-align: center; display: flex; flex-direction: column; gap: 4px; }
.flow-orch b { font-size: 17px; letter-spacing: .04em; text-transform: uppercase; }
.flow-orch span { font-size: 14px; color: #E6ECF8; }
.flow-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 10px; counter-reset: fs; }
.flow-steps li { background: var(--white); border: .5px solid var(--border); border-top: 4px solid var(--a2k-navy); border-radius: 8px; padding: 12px 10px; display: flex; flex-direction: column; gap: 6px; counter-increment: fs; }
.flow-steps li:nth-child(4) { border-top-color: var(--accent-purple); }
.flow-steps li:nth-child(6) { border-top-color: var(--accent-orange); }
.flow-steps b { font-size: 14px; letter-spacing: .06em; text-transform: uppercase; color: var(--a2k-navy); }
.flow-steps b::before { content: counter(fs) ". "; color: var(--a2k-blue); }
.flow-steps span { font-size: 13px; line-height: 1.45; color: var(--muted); }
@media (max-width: 1000px) { .flow-steps { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (max-width: 640px) { .flow-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

.foot-nav { display: flex; flex-wrap: wrap; gap: 6px 22px; font-size: 15px; font-weight: 700; }
.site-foot .copy { font-size: 13px; }
@media (max-width: 720px) { .site-foot .wrap { flex-direction: column; align-items: flex-start; } }

/* Contact page */
.cform { display: grid; gap: 20px; max-width: 720px; }
.cform .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.cform label { display: flex; flex-direction: column; gap: 6px; font-size: 16px; font-weight: 700; color: var(--a2k-navy); }
.cform label .opt { font-weight: 400; color: var(--muted); }
.cform input, .cform select, .cform textarea { font: inherit; font-size: 16px; font-weight: 400; padding: 12px 14px; border: .5px solid var(--border); border-radius: 8px; background: #fff; color: var(--text-gray); width: 100%; }
.cform input, .cform select { height: 52px; }
.cform textarea { min-height: 160px; resize: vertical; }
.cform .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.cform .fine { font-size: 15px; color: var(--muted); }
.cform button[disabled] { opacity: .6; }
.form-msg { border-radius: 8px; padding: 16px 18px; font-size: 16px; }
.form-msg.ok { background: var(--blue-100); color: var(--a2k-navy); }
.form-msg.err { background: #FBEDEB; color: #8A2A1E; }
.addr { display: grid; gap: 10px; }
.addr div { display: flex; flex-wrap: wrap; gap: 4px 12px; }
.addr dt { font-weight: 700; color: var(--a2k-navy); min-width: 190px; }
.addr dd { margin: 0; }
@media (max-width: 720px) { .cform .row2 { grid-template-columns: 1fr; } }

/* Home: scale and trust columns */
.pillars { gap: 24px 56px; }
.colhead { font-size: 22px; color: var(--a2k-navy); padding-bottom: 12px; margin-bottom: 20px; border-bottom: 2px solid var(--accent-teal); }
.colhead.sec2 { border-bottom-color: var(--a2k-blue); }
.check.sec2 li::before { color: var(--a2k-blue); }
.check.stacked li b { display: block; margin-bottom: 4px; }

.eff { font-size: 15px; color: var(--muted); margin-bottom: 8px; }