/* TechNet Resources — tnri.net v4 (dark, high-energy)
   Palette: sky #4AC1E0, steel #3E6F9E, navy #16273e, deep #0c1624, ink-on-dark #e8f1f8 */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --sky:#4AC1E0; --steel:#3E6F9E; --navy:#14243a; --deep:#0a1420;
  --panel:#101f31; --panel2:#152840; --line:#223c59;
  --text:#dbe7f2; --text-dim:#9db4c9; --white:#fff;
  --gold:#E8B24A; --gold-hi:#F2C264;
}
html{scroll-behavior:smooth;color-scheme:dark}
a,button,.btn,.btn-outline{touch-action:manipulation;-webkit-tap-highlight-color:rgba(74,193,224,.2)}
:focus-visible{outline:2px solid var(--sky);outline-offset:3px;border-radius:4px}
h1,h2{text-wrap:balance}
.skip{position:absolute;left:-9999px;top:0;z-index:100;background:var(--sky);color:var(--deep);padding:10px 18px;font-weight:700;border-radius:0 0 8px 0}
.skip:focus{left:0}
body{font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);line-height:1.65;background:var(--deep)}
h1,h2,h3,.stat .n,.wordmark{font-family:"Sora","Inter",sans-serif}
.mono,.eyebrow,.stat .l,.card .tags,.step .num,.badge .b2{font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace}
img{max-width:100%;height:auto}
a{color:var(--sky)}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
::selection{background:var(--sky);color:var(--deep)}



/* Header */
header{position:sticky;top:0;z-index:50;background:rgba(12,22,36,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 24px;max-width:1120px;margin:0 auto;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo img{height:40px;width:auto}
.wordmark{font-size:1.5rem;font-weight:700;font-style:italic;letter-spacing:-.5px}
.wordmark .tech{color:#7fa8cc}
.wordmark .net{color:var(--sky)}
nav{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
nav a{color:var(--text);text-decoration:none;font-size:.95rem;font-weight:500;padding:10px 2px;display:inline-block}
nav a:hover{color:var(--sky)}
nav a.active{color:var(--sky);border-bottom:2px solid var(--sky)}
.btn{display:inline-block;background:var(--gold);color:var(--deep);font-weight:700;text-decoration:none;padding:13px 28px;border-radius:4px;font-size:1rem;letter-spacing:.2px;transition:transform .15s,box-shadow .15s,background .15s}
.hero .btn{box-shadow:0 0 28px rgba(232,178,74,.32)}
.btn:hover{transform:translateY(-2px);background:var(--gold-hi);box-shadow:0 6px 22px rgba(232,178,74,.38)}
.btn-outline{display:inline-block;border:2px solid var(--sky);color:var(--sky);font-weight:700;text-decoration:none;padding:11px 26px;border-radius:6px;font-size:1rem;transition:background .15s}
.btn-outline:hover{background:rgba(74,193,224,.12)}
nav .btn{padding:9px 18px;font-size:.9rem;box-shadow:none}

/* Hero */
.hero{position:relative;padding:96px 0 72px;overflow:hidden;isolation:isolate;
  background:
    radial-gradient(ellipse 900px 480px at 78% -10%,rgba(74,193,224,.16),transparent 60%),
    radial-gradient(ellipse 700px 420px at 8% 110%,rgba(62,111,158,.22),transparent 60%),
    linear-gradient(160deg,#0e1b2e 0%,var(--navy) 60%,#1a3050 100%)}
.hero h1{font-size:clamp(2rem,4vw + 1rem,3rem);line-height:1.12;max-width:900px;margin-bottom:22px;color:var(--white);letter-spacing:-1px}
.hero h1 .accent{color:var(--sky)}
.hero p.sub{font-size:clamp(1.05rem,.6vw + .95rem,1.18rem);max-width:780px;color:var(--text-dim);margin-bottom:34px}
.hero .cta-row{display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.hero .cta-row .quiet{color:var(--text-dim);text-decoration:underline;font-size:.98rem}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:500;letter-spacing:2px;text-transform:uppercase;color:var(--sky);margin-bottom:24px;padding-left:2px}

/* Stat band */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{background:var(--panel);padding:30px 18px;text-align:center}
.stat .n{font-size:clamp(1.7rem,4.5vw,2.2rem);font-weight:800;color:var(--white);font-variant-numeric:tabular-nums;letter-spacing:-1px}
.stat .n::after{content:"";display:block;width:26px;height:2px;background:var(--sky);margin:10px auto 0}
.stat .l{font-size:.75rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:1.4px;margin-top:8px}

/* Page hero (interior) */
.page-hero{padding:64px 0 50px;
  background:radial-gradient(ellipse 800px 400px at 80% -20%,rgba(74,193,224,.14),transparent 60%),linear-gradient(160deg,#0e1b2e,var(--navy))}
.page-hero h1{font-size:clamp(1.7rem,3vw + .8rem,2.3rem);line-height:1.18;max-width:880px;color:var(--white);letter-spacing:-.5px}
.page-hero h1 .accent{color:var(--sky)}
.page-hero p{margin-top:14px;max-width:800px;color:var(--text-dim);font-size:1.08rem}

/* Proof band */
.proof-band{background:var(--panel);border-bottom:1px solid var(--line);padding:38px 0}
.proof-band blockquote{max-width:880px;margin:0 auto;text-align:center;font-size:1.25rem;color:var(--white)}
.proof-band strong{color:var(--sky)}
.proof-band .small{display:block;margin-top:8px;font-size:.92rem;color:var(--text-dim)}

/* Sections */
section.block{padding:64px 0}
section.block.alt{background:rgba(19,34,56,.55);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
section.block h2{font-size:clamp(1.5rem,2vw + .7rem,1.85rem);color:var(--white);margin-bottom:18px;letter-spacing:-.5px;position:relative;padding-bottom:14px}
section.block h2::after{content:"";position:absolute;left:0;bottom:0;width:56px;height:2px;background:var(--sky)}
section.block h2::before{content:"";position:absolute;left:60px;bottom:0;right:auto;width:200px;max-width:40%;height:1px;background:var(--line);transform:translateY(-.5px)}
section.block h2 .accent{color:var(--sky)}
section.block h3{font-size:1.2rem;color:var(--sky);margin:26px 0 8px}
section.block p{max-width:840px;margin-bottom:14px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}
.card{background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--sky);border-radius:10px;padding:26px;transition:transform .18s,border-color .18s}
.card:hover{transform:translateY(-4px);border-color:var(--sky)}
.card h3{margin:0 0 10px;color:var(--white);font-size:1.1rem}
.card p{font-size:.95rem;margin-bottom:0;color:var(--text-dim)}
.card .tags{margin-top:14px;font-size:.78rem;color:var(--sky);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.3px}
.steps{margin-top:8px}
.step{display:flex;gap:18px;margin:24px 0;max-width:860px}
.step .num{flex:0 0 46px;height:46px;border-radius:50%;background:transparent;border:2px solid var(--sky);color:var(--sky);font-weight:800;font-size:1.15rem;display:flex;align-items:center;justify-content:center}
.step h3{margin:0 0 6px;color:var(--white)}
.step p{margin-bottom:0;color:var(--text-dim)}
.offer{background:linear-gradient(160deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:12px;padding:40px;margin-top:10px;box-shadow:0 0 60px rgba(74,193,224,.07)}
.offer h2{color:var(--white)!important}
.offer ol{margin:18px 0 24px 22px}
.offer li{margin-bottom:13px;font-size:1.06rem}
.offer .tag{color:var(--sky);font-weight:800}
.center{text-align:center}
.cta-section{padding:72px 0;text-align:center;
  background:radial-gradient(ellipse 700px 360px at 50% 120%,rgba(74,193,224,.18),transparent 65%),linear-gradient(160deg,var(--navy),#0e1b2e)}
.cta-section h2{font-size:2rem;margin-bottom:12px;color:var(--white);letter-spacing:-.5px}
.cta-section p{max-width:640px;margin:0 auto 28px;color:var(--text-dim)}

/* WBENC */
.wbenc-band{padding:36px 0;border-top:1px solid var(--line)}
.wbenc-band .inner{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.badge{flex:0 0 auto;background:var(--panel);border:2px solid var(--sky);border-radius:10px;padding:14px 20px;text-align:center;color:var(--white);font-weight:800;line-height:1.3;box-shadow:0 0 22px rgba(74,193,224,.18)}
.badge .b1{font-size:1.05rem;letter-spacing:.5px}
.badge .b2{font-size:.68rem;font-weight:600;color:var(--sky);text-transform:uppercase;letter-spacing:1px}
.checklist{list-style:none;margin:14px 0}
.checklist li{padding-left:30px;position:relative;margin-bottom:13px;max-width:840px;color:var(--text-dim)}
.checklist li strong{color:var(--text)}
.checklist li::before{content:"▸";position:absolute;left:2px;top:0;color:var(--sky);font-weight:800;font-size:1.05rem}

/* Footer */
footer{background:#0a1320;color:var(--text-dim);padding:44px 0 28px;font-size:.92rem;border-top:1px solid var(--line)}
footer .cols{display:flex;justify-content:space-between;gap:28px;flex-wrap:wrap;margin-bottom:22px}
footer a{color:var(--text);text-decoration:none}
footer a:hover{color:var(--sky)}
footer .foot-links{display:flex;gap:18px;flex-wrap:wrap}
footer .legal{border-top:1px solid var(--line);padding-top:16px;font-size:.85rem;color:#93a9c0}

/* Forms / contact */
.contact-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:32px;max-width:560px}
.contact-card h2{color:var(--white)}
.contact-card p{margin-bottom:14px;color:var(--text-dim)}
.contact-card .big{font-size:1.15rem;font-weight:600;color:var(--white)}

/* Scroll-reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

@media(max-width:880px){
  .cards{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .header-inner{justify-content:center}
}

/* Network animation canvas (hero) */
#net-canvas{position:absolute;inset:0;z-index:-1;opacity:.55}
.hero .container{position:relative;z-index:1}
.hero h1 .accent,.page-hero h1 .accent{color:var(--sky)}
/* Eyebrow pulse dot */
.eyebrow::before{content:"//";margin-right:10px;color:var(--steel);font-weight:600}
@media (prefers-reduced-motion:reduce){#net-canvas{display:none}.hero .stagger{animation:none;opacity:1;transform:none}}

/* v6: hero load choreography */
.hero .stagger{opacity:0;transform:translateY(16px);animation:heroIn .7s cubic-bezier(.16,1,.3,1) forwards}
.hero .stagger.d1{animation-delay:.05s}.hero .stagger.d2{animation-delay:.18s}.hero .stagger.d3{animation-delay:.32s}.hero .stagger.d4{animation-delay:.46s}
@keyframes heroIn{to{opacity:1;transform:none}}
/* v6: datasheet annotation label used above proof band + key sections */
.ds-label{display:block;font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:.72rem;letter-spacing:2.2px;text-transform:uppercase;color:#8fb3d1;margin-bottom:10px}
.ds-label b{color:var(--sky);font-weight:600}
/* card hover: annotation tick slides */
.card{position:relative}
.card::before{content:"";position:absolute;top:-3px;left:0;width:34px;height:3px;background:var(--white);opacity:0;transition:opacity .18s,width .25s}
.card:hover::before{opacity:.9;width:64px}

/* v7: hero grid + live-system terminal */
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.terminal{background:#081019;border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:0 18px 50px rgba(0,0,0,.45);font-family:"IBM Plex Mono",ui-monospace,monospace}
.term-bar{display:flex;align-items:center;gap:7px;padding:10px 14px;background:#0d1826;border-bottom:1px solid var(--line)}
.term-bar .dot{width:10px;height:10px;border-radius:50%;background:#22354d}
.term-bar .dot:first-child{background:#e0645c}.term-bar .dot:nth-child(2){background:#e0b558}.term-bar .dot:nth-child(3){background:#5ec97f}
.term-title{margin-left:8px;font-size:.72rem;color:var(--text-dim);letter-spacing:.5px}
.term-body{padding:16px 18px;min-height:238px;font-size:.8rem;line-height:1.9;color:#b8d4e8}
.term-body .ln{display:block;white-space:pre-wrap;word-break:break-word}
.term-body .p{color:#7f9ab5}
.term-body .ok{color:#5ec97f}
.term-body .sig{color:var(--sky)}
.term-body .hold{color:#e0b558}
.term-body .caret{display:inline-block;width:8px;height:1em;background:var(--sky);vertical-align:text-bottom;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.term-note{padding:10px 18px;border-top:1px solid var(--line);font-size:.72rem;color:#93a9c0;letter-spacing:.4px}
@media(max-width:980px){.hero-grid{grid-template-columns:1fr}.terminal{max-width:560px}}
@media (prefers-reduced-motion:reduce){.term-body .caret{animation:none}}

/* v8 (2026-07-22): inline-link clarity, datasheet chip rows, pull-quote */
section.block p a:not(.btn):not(.btn-outline),
section.block li a:not(.btn):not(.btn-outline),
.contact-card p a{text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px;text-decoration-color:rgba(74,193,224,.55)}
section.block p a:not(.btn):hover,.contact-card p a:hover{text-decoration-color:var(--sky)}
.chip-row{font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.76rem;color:var(--sky);letter-spacing:.4px;margin:8px 0 2px}
.pull{margin:30px 0;padding:18px 26px;border-left:3px solid var(--sky);background:rgba(19,34,56,.5);border-radius:0 8px 8px 0;font-family:"Sora","Inter",sans-serif;font-size:1.2rem;line-height:1.4;color:var(--white);max-width:820px}

/* v9 (2026-07-22): contact form, placeholders, logo slots, case-study/privacy helpers */
.cform{max-width:640px;margin-top:8px}
.cform .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cform .field{margin-bottom:16px}
.cform label{display:block;font-size:.82rem;font-weight:600;letter-spacing:.3px;color:var(--text);margin-bottom:6px}
.cform label .req{color:var(--sky)}
.cform input,.cform select,.cform textarea{width:100%;background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:12px 14px;color:var(--white);font-family:inherit;font-size:1rem}
.cform input:focus,.cform select:focus,.cform textarea:focus{outline:2px solid var(--sky);outline-offset:1px;border-color:var(--sky)}
.cform textarea{min-height:120px;resize:vertical}
.cform .hp{position:absolute;left:-9999px}
.cform button{cursor:pointer;border:none;margin-top:4px}
.form-status{margin-top:14px;padding:12px 16px;border-radius:6px;font-size:.95rem;display:none}
.form-status.show{display:block}
.form-status.ok{background:rgba(94,201,127,.12);border:1px solid #5ec97f;color:#bfeccb}
.form-status.err{background:rgba(224,100,92,.12);border:1px solid #e0645c;color:#f2c9c6}
@media(max-width:640px){.cform .row{grid-template-columns:1fr}}
.placeholder{border:1px dashed var(--steel);border-radius:8px;padding:16px 18px;margin:16px 0;color:var(--text-dim);font-size:.9rem;background:rgba(19,34,56,.35)}
.placeholder b{color:var(--sky);font-family:"IBM Plex Mono",monospace;font-size:.78rem;letter-spacing:.5px;display:block;margin-bottom:4px;text-transform:uppercase}
.logo-strip{display:flex;align-items:center;gap:30px;flex-wrap:wrap;margin-top:18px;opacity:.9}
.logo-strip .logo-slot{min-width:120px;height:48px;border:1px dashed var(--line);border-radius:6px;display:flex;align-items:center;justify-content:center;color:var(--text-dim);font-size:.72rem;font-family:"IBM Plex Mono",monospace}
.legal a{color:var(--text-dim);text-decoration:underline;text-underline-offset:2px}
.legal a:hover{color:var(--sky)}

/* v10 (2026-07-22): real logo + WBENC seal imagery */
.logo-img{height:38px;width:auto;display:block}
.logo img{height:38px;width:auto}
.foot-logo{height:34px;margin-bottom:10px}
.wbe-seal{height:104px;width:auto;display:block}
@media(max-width:880px){.logo-img{height:34px}.wbe-seal{height:88px}}

/* ===== v12 (2026-07-23): review fixes — interactive states, form errors, mobile nav ===== */
/* Interactive press/disabled states (Pillar C) */
.btn:active,nav .btn:active{transform:translateY(0);filter:brightness(.93)}
.btn-outline:active{background:rgba(74,193,224,.2)}
.card:active{transform:translateY(-2px)}
.cform button:disabled{opacity:.6;cursor:not-allowed}
.cform input::placeholder,.cform textarea::placeholder{color:var(--text-dim);opacity:1}

/* Contact-form field-level error state (WCAG 3.3.1 Error Identification) */
.cform .field.invalid input,.cform .field.invalid select,.cform .field.invalid textarea{border-color:#e0645c}
.cform .field.invalid input:focus,.cform .field.invalid select:focus,.cform .field.invalid textarea:focus{outline-color:#e0645c}
.cform .field-error{display:none;margin-top:6px;font-size:.82rem;color:#f2c9c6}
.cform .field.invalid .field-error{display:block}

/* Mobile nav: collapse to a toggle under 880px */
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;color:var(--sky);padding:7px 9px;cursor:pointer;line-height:0}
.nav-toggle svg{width:22px;height:22px;display:block}
.nav-toggle:active{background:rgba(74,193,224,.12)}
@media(max-width:880px){
  .nav-toggle{display:inline-flex;align-items:center}
  .header-inner{justify-content:space-between;flex-wrap:nowrap}
  nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:rgba(10,20,32,.98);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding:6px 24px 14px;display:none}
  nav.open{display:flex}
  nav a{padding:13px 2px;border-bottom:1px solid var(--line);font-size:1rem}
  nav a.active{color:var(--sky);border-bottom:1px solid var(--sky)}
  nav .btn{margin-top:12px;text-align:center;padding:12px}
}
/* Footer WBENC trust badge (site-wide) */
.foot-seal{display:block;height:58px;width:auto;margin-top:14px}

/* Field Notes: clickable article cards (whole card is a link) */
a.card{text-decoration:none;display:block}
a.card h3{color:var(--white)}
a.card p{color:var(--text-dim)}
a.card:hover h3{color:var(--sky)}
a.card .tags{margin-top:16px}