/* Tottempudi Software Solutions — one stylesheet, no per-page CSS.
   Tokens ported from the 20 September reference implementation and COPIED,
   never imported across repositories: a TraceIT change must not be able to
   break the company site. Fonts are self-hosted (see DECISIONS.md). */

:root{
  --paper:#EFECE6; --surface:#F8F6F2; --line:#DDD8CF; --ink:#17150F; --muted:#5E5A50;
  --accent:#1E6073; --accent-soft:#2A7E8C; --on-accent:#F6F8F5;
  --lime:#9DD373; --teal:#35908E; --navy:#15445F;
  --deep:#0F1A1C; --deep-2:#16262A; --deep-line:#21383C; --deep-line-2:#31555A;
  --on-deep:#E8EDE9; --on-deep-muted:#9FB0AC; --on-lime:#0B1412;
  --r:10px; --gut:clamp(16px,5vw,64px); --measure:62ch;
  --band-y:clamp(56px,8vw,112px);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#0F1A1C; --surface:#16262A; --line:#243A3E; --ink:#E8EDE9; --muted:#9FB0AC;
  --accent:#9DD373; --accent-soft:#7FC35E; --on-accent:#0B1412;
  --deep:#08100F; --deep-2:#101D1F; --on-deep:#E8EDE9;
}}
:root[data-theme="dark"]{
  --paper:#0F1A1C; --surface:#16262A; --line:#243A3E; --ink:#E8EDE9; --muted:#9FB0AC;
  --accent:#9DD373; --accent-soft:#7FC35E; --on-accent:#0B1412;
  --deep:#08100F; --deep-2:#101D1F; --on-deep:#E8EDE9;
}

@font-face{font-family:"Instrument Sans";src:url("/assets/fonts/instrument-sans-var.woff2") format("woff2");font-weight:400 700;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("/assets/fonts/ibm-plex-mono-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("/assets/fonts/ibm-plex-mono-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:"Instrument Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding-inline:var(--gut)}
h1,h2,h3{text-wrap:balance;margin:0;letter-spacing:-.021em;line-height:1.08;font-weight:700}
h1{font-size:clamp(2.3rem,6.2vw,4.3rem)}
h2{font-size:clamp(1.55rem,3.3vw,2.5rem);line-height:1.12}
h3{font-size:1.02rem;letter-spacing:-.005em;line-height:1.3}
p{margin:0}
a{color:inherit}
.eyebrow{font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:.68rem;letter-spacing:.17em;text-transform:uppercase;color:var(--muted);margin:0}
.lede{font-size:clamp(1.02rem,1.6vw,1.2rem);color:var(--muted);max-width:var(--measure)}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:3px;border-radius:3px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);padding:10px 16px;z-index:60}
.skip:focus{left:8px;top:8px}

/* ---------- header ---------- */
.head{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;
  background:color-mix(in srgb,var(--paper) 84%,transparent);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line)}
.head .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:62px;padding-block:9px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:600;font-size:.94rem}
.brand img{width:30px;height:30px;display:block}
.brand span{white-space:nowrap}
.nav ul{display:flex;flex-wrap:wrap;gap:4px;list-style:none;margin:0;padding:0;justify-content:flex-end}
.nav a{padding:8px 11px;min-height:44px;display:flex;align-items:center;
  text-decoration:none;font-size:.88rem;color:var(--muted);border-radius:7px;transition:color .18s,background .18s}
.nav a:hover{color:var(--ink);background:color-mix(in srgb,var(--line) 55%,transparent)}
.nav a[aria-current]{color:var(--ink);font-weight:600}
/* At phone width the name leaves the layout but not the accessibility tree:
   display:none took the link's name with it (axe link-name, 12 of 12 phone runs). */
@media(max-width:700px){.brand span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.nav a{padding:8px 9px;font-size:.84rem}}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);isolation:isolate}
#field{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:0;opacity:.95}
.hero.field::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(104% 86% at 1% 47%, var(--paper) 0%, color-mix(in srgb,var(--paper) 86%,transparent) 30%, transparent 66%)}
.hero .wrap{position:relative;z-index:2;padding-block:clamp(58px,10vw,116px) clamp(52px,8vw,96px)}
.hero.sub .wrap{padding-block:clamp(44px,7vw,84px) clamp(40px,6vw,72px)}
.hero .eyebrow{margin-bottom:20px}
.hero h1{max-width:17ch;margin-bottom:22px}
.hero .lede{margin-bottom:30px}
.hero .lede:last-child{margin-bottom:0}
.hero .body{max-width:var(--measure);color:var(--muted)}
.markrow{display:flex;align-items:center;gap:16px;margin-bottom:26px}
.markrow img{width:58px;height:58px;display:block;filter:drop-shadow(0 3px 14px color-mix(in srgb,var(--teal) 30%,transparent))}
.markrow .rule{flex:1;height:1px;background:linear-gradient(90deg,var(--lime),var(--teal) 45%,transparent)}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.btn{position:relative;overflow:hidden;display:inline-flex;align-items:center;min-height:46px;
  padding:0 20px;border-radius:var(--r);border:1px solid var(--line);background:var(--surface);
  color:var(--ink);text-decoration:none;font-weight:600;font-size:.93rem;
  transition:transform .18s,border-color .18s,box-shadow .18s}
.btn:hover{transform:translateY(-1.5px);border-color:var(--accent);box-shadow:0 5px 18px -8px color-mix(in srgb,var(--accent) 60%,transparent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.btn::after{content:"";position:absolute;top:0;bottom:0;width:36%;left:-45%;
  background:linear-gradient(90deg,transparent,color-mix(in srgb,#fff 34%,transparent),transparent);
  transform:skewX(-18deg)}
.btn:hover::after{animation:sweep .62s ease}
@keyframes sweep{to{left:120%}}

/* ---------- bands ---------- */
.band{padding-block:var(--band-y);border-bottom:1px solid var(--line)}
.band.alt{background:var(--surface)}
.band.tight{padding-block:calc(var(--band-y) * .58)}
.band .eyebrow{margin-bottom:12px}
.band h2{margin-bottom:16px;max-width:22ch}
.band>.wrap>p{max-width:var(--measure);color:var(--muted)}
.band>.wrap>p+p{margin-top:12px}
.band .actions{margin-top:26px}
.grid{display:grid;gap:14px;margin-top:30px;grid-template-columns:repeat(auto-fit,minmax(min(100%,238px),1fr))}
/* Four cards never sit in a three-column grid: 4-up, then 2x2, then 1. */
.grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(min-width:940px){.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:520px){.grid.four{grid-template-columns:minmax(0,1fr)}}
/* Six cards: 3-up, then 2-up, then 1. */
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:940px){.grid.three{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.grid.three{grid-template-columns:minmax(0,1fr)}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  padding:20px 18px 22px;position:relative;overflow:hidden;
  transition:transform .22s cubic-bezier(.2,.9,.25,1),box-shadow .22s,border-color .22s}
.band.alt .card{background:var(--surface)}
.card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--lime),var(--teal),var(--navy));
  transform:scaleX(0);transform-origin:left;transition:transform .34s cubic-bezier(.2,.9,.25,1)}
.card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--teal) 45%,var(--line));
  box-shadow:0 12px 30px -20px color-mix(in srgb,var(--navy) 70%,transparent)}
.card:hover::before{transform:scaleX(1)}
.card h3{margin-bottom:7px}
.card p{font-size:.9rem;color:var(--muted);line-height:1.55}
.card p+p{margin-top:6px}
.card a{text-decoration:none}
.card a::after{content:"";position:absolute;inset:0}

/* ---------- lists carried over from the first build ---------- */
.features{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:14px;max-width:var(--measure)}
.features li{padding-left:18px;position:relative;color:var(--muted);line-height:1.55}
.features li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.features strong{color:var(--ink);font-weight:600}
.spec{display:grid;gap:16px;margin:22px 0 0;padding:0;max-width:var(--measure)}
.spec>div{border-left:2px solid var(--line);padding-left:14px}
.spec dt{font-weight:600;margin-bottom:3px}
.spec dd{margin:0;color:var(--muted)}
.held{border:1px dashed color-mix(in srgb,var(--muted) 55%,var(--line));border-radius:var(--r);
  padding:14px 16px;background:var(--surface);color:var(--muted);max-width:var(--measure);font-size:.92rem;margin-top:22px}
.held p{margin:0;color:inherit}
.held p+p{margin-top:6px}
.held .tag{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:.62rem;letter-spacing:.13em;text-transform:uppercase;display:block;margin-bottom:6px}
.held strong{color:var(--ink);font-weight:600}
dl.contact{display:grid;gap:14px;margin:22px 0 0;max-width:var(--measure)}
dl.contact dt{font-weight:600}
dl.contact dd{margin:0;color:var(--muted)}

/* ---------- traceit instrument band ---------- */
.instr{background:var(--deep);color:var(--on-deep);border-bottom:none;position:relative;overflow:hidden}
.instr .eyebrow{color:var(--lime)}
.instr h1,.instr h2{color:var(--on-deep)}
.instr>.wrap>p{color:var(--on-deep-muted)}
.instr .lede{color:var(--on-deep-muted)}
.rules{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.rules li{padding-left:18px;position:relative;font-size:.94rem;color:var(--on-deep-muted);line-height:1.55}
.rules li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--lime)}
.rules li strong{color:var(--on-deep);font-weight:600}
.rules.four{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(min(100%,232px),1fr));margin-top:28px}
.instr .btn{background:var(--deep-2);border-color:var(--deep-line-2);color:var(--on-deep)}
.instr .btn.primary{background:var(--lime);border-color:var(--lime);color:var(--on-lime)}
.instr .btn:hover{border-color:var(--lime)}
.instr :focus-visible{outline-color:var(--lime)}

/* ---------- walkthrough ---------- */
.walk{margin-top:34px}
.sectors{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.sectors:empty{display:none}
.sectors button{appearance:none;cursor:pointer;min-height:44px;padding:0 16px;border-radius:999px;
  border:1px solid var(--deep-line);background:transparent;color:var(--on-deep-muted);
  font:inherit;font-size:.87rem;font-weight:500;transition:background .18s,color .18s,border-color .18s}
.sectors button:hover{color:var(--on-deep);border-color:var(--deep-line-2)}
.sectors button[aria-selected="true"]{background:var(--lime);border-color:var(--lime);color:var(--on-lime);font-weight:600}
.stage{display:grid;gap:14px}
.stage figure{margin:0;border:1px solid var(--deep-line);border-radius:12px;overflow:hidden;background:var(--deep-2)}
.stage .shot{position:relative;background:#0B1517;aspect-ratio:1400/914}
.stage .shot img{display:block;width:100%;height:100%;object-fit:cover;object-position:top left}
.stage figcaption{padding:16px 18px 18px;border-top:1px solid var(--deep-line)}
.stage .cap-t{font-weight:600;color:var(--on-deep);margin-bottom:6px;font-size:1.02rem}
.stage .cap-d{font-size:.91rem;color:var(--on-deep-muted);line-height:1.55;max-width:70ch}
.stage .cap-s{margin-top:12px;padding-top:12px;border-top:1px dashed var(--deep-line);font-size:.91rem;
  color:var(--on-deep);line-height:1.55;max-width:70ch}
.stage .cap-s b{color:var(--lime);font-weight:600;font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;display:block;margin-bottom:5px}
.stage [hidden]{display:none!important}
.rail{display:grid;gap:8px;margin-top:12px;grid-template-columns:repeat(auto-fit,minmax(min(100%,150px),1fr))}
.rail:empty{display:none}
.rail button{appearance:none;cursor:pointer;text-align:left;padding:11px 12px;min-height:44px;
  border-radius:9px;border:1px solid var(--deep-line);background:transparent;color:var(--on-deep-muted);
  font:inherit;font-size:.83rem;line-height:1.3;transition:background .18s,color .18s,border-color .18s}
.rail button:hover{color:var(--on-deep);border-color:var(--deep-line-2);background:#122023}
.rail button[aria-pressed="true"]{color:var(--on-deep);border-color:var(--teal);
  background:color-mix(in srgb,var(--teal) 18%,transparent);font-weight:600}
.rail button span{display:block;font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:.6rem;
  letter-spacing:.12em;text-transform:uppercase;opacity:.8;margin-bottom:3px}
/* opacity .62 in the reference measured below 4.5:1 for this 9.6 px text (axe, both themes); .8 measures 4.9:1. */
.walk .foot-note{margin-top:14px;font-size:.74rem;color:var(--on-deep-muted);
  font-family:"IBM Plex Mono",ui-monospace,monospace;letter-spacing:.03em;line-height:1.6}
@media (prefers-reduced-motion:no-preference){
  .stage .shot img{transition:opacity .3s ease}
  .stage .shot.swapping img{opacity:.25}
}

/* ---------- contact / footer ---------- */
.cta h2{max-width:16ch}
.cta .contact-line{margin-top:14px}
.foot{padding-block:36px 44px;background:var(--surface);font-size:.87rem;color:var(--muted)}
.foot .wrap{display:flex;flex-wrap:wrap;gap:22px;justify-content:space-between}
.foot ul{list-style:none;display:flex;flex-wrap:wrap;gap:4px 16px;margin:0;padding:0}
.foot a{color:var(--muted)}
.foot a:hover{color:var(--ink)}
.foot strong{color:var(--ink);font-weight:600}
.foot .addr{display:grid;gap:4px}

/* ---------- motion ---------- */
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.rise{animation:rise .72s cubic-bezier(.16,.9,.2,1) both}
.d1{animation-delay:.06s}.d2{animation-delay:.14s}.d3{animation-delay:.24s}.d4{animation-delay:.34s}
/* Reveal-on-scroll is applied by site.js, so a page with scripts blocked never hides a card. */
.js .reveal{transform:translateY(14px);opacity:.001;transition:transform .62s cubic-bezier(.16,.9,.2,1),opacity .5s ease}
.js .reveal.in{transform:none;opacity:1}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .js .reveal{opacity:1;transform:none}
}

.after-list{margin-top:22px}