/* ============================================================
   Hardened AI — design system
   Facebook-style Material chrome, Hardened AI palette.
   Palette sampled from the logo:
     forest #0E3D2C · deep #062A1E · emerald #12805A
     mint   #3FE0A6 · gold #C9A961 · canvas #EBEFF2
   No external fonts, no CDNs, no trackers — everything the
   browser loads comes from this server. That is the point.
   ============================================================ */

:root{
  /* brand */
  --deep:      #062A1E;
  --forest:    #0E3D2C;
  --forest-2:  #14523B;
  --emerald:   #12805A;
  --emerald-h: #0E6B4B;
  --mint:      #3FE0A6;
  --mint-soft: #E3F7EE;
  --gold:      #C9A961;
  --gold-soft: #F5EEDD;

  /* facebook-material surface system */
  --canvas:    #EBEFF2;
  --card:      #FFFFFF;
  --hover:     #F1F4F3;
  --secondary: #E3E7E6;
  --divider:   #DCE2E0;

  /* type */
  --ink:       #1C2B26;
  --ink-2:     #5B6B65;
  --ink-3:     #8A9A94;
  --on-dark:   #EAF3EF;
  --on-dark-2: #A9C6B9;

  /* material elevation */
  --e1: 0 1px 2px rgba(6,42,30,.10), 0 0 1px rgba(6,42,30,.08);
  --e2: 0 2px 6px rgba(6,42,30,.12), 0 1px 2px rgba(6,42,30,.08);
  --e3: 0 8px 20px rgba(6,42,30,.16), 0 2px 6px rgba(6,42,30,.08);
  --e4: 0 16px 40px rgba(6,42,30,.20);

  --r-sm: 6px;
  --r:    8px;
  --r-lg: 12px;
  --r-xl: 18px;
  --nav-h: 58px;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          Helvetica, Arial, sans-serif;
  --ease: cubic-bezier(.2,.8,.2,1);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth; scroll-padding-top:calc(var(--nav-h) + 16px)}

body{
  margin:0; font-family:var(--font);
  background:var(--canvas); color:var(--ink);
  font-size:15px; line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{margin:0 0 .5em; line-height:1.2; letter-spacing:-.02em; color:var(--deep)}
h1{font-size:2.35rem; font-weight:800}
h2{font-size:1.6rem;  font-weight:700}
h3{font-size:1.12rem; font-weight:700}
h4{font-size:.95rem;  font-weight:700}
p{margin:0 0 1em}
a{color:var(--emerald); text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%; display:block}
hr{border:0; border-top:1px solid var(--divider); margin:28px 0}
code{font-family:ui-monospace,"Cascadia Mono",Consolas,monospace; font-size:.88em;
     background:var(--secondary); padding:.12em .4em; border-radius:4px}

/* ---------- layout ---------- */
.wrap{max-width:1080px; margin:0 auto; padding:0 16px}
.wrap-narrow{max-width:760px; margin:0 auto; padding:0 16px}
.stack{display:flex; flex-direction:column; gap:16px}
.section{padding:44px 0}
.section-tight{padding:28px 0}

/* ---------- top nav (Facebook chrome, brand colors) ---------- */
.nav{
  position:sticky; top:0; z-index:80;
  height:var(--nav-h);
  background:var(--forest);
  box-shadow:var(--e2);
}
.nav-in{
  max-width:1180px; margin:0 auto; padding:0 12px; height:100%;
  display:flex; align-items:center; gap:8px;
}
.brand{display:flex; align-items:center; gap:10px; text-decoration:none; flex-shrink:0}
.brand:hover{text-decoration:none}
.brand img{width:32px; height:auto; filter:drop-shadow(0 1px 3px rgba(0,0,0,.35))}
.footer-brand img{height:auto}
.brand-txt{display:flex; flex-direction:column; line-height:1.05}
.brand-name{color:#fff; font-weight:800; font-size:1.02rem; letter-spacing:.005em}
.brand-sub{color:var(--gold); font-size:.62rem; font-weight:700;
           letter-spacing:.14em; text-transform:uppercase}

.nav-links{display:flex; align-items:center; gap:2px; margin-left:18px; flex:1}
.nav-links a{
  color:var(--on-dark-2); font-weight:600; font-size:.9rem;
  padding:9px 14px; border-radius:var(--r);
  transition:background .15s var(--ease), color .15s var(--ease);
  position:relative;
}
.nav-links a:hover{background:rgba(255,255,255,.09); color:#fff; text-decoration:none}
.nav-links a.active{color:#fff}
.nav-links a.active::after{
  content:""; position:absolute; left:14px; right:14px; bottom:-14px; height:3px;
  background:var(--mint); border-radius:3px 3px 0 0;
}
.nav-cta{margin-left:auto; display:flex; align-items:center; gap:8px}

.hamburger{
  display:none; margin-left:auto; background:rgba(255,255,255,.10); border:0;
  color:#fff; width:38px; height:38px; border-radius:50%; cursor:pointer;
  font-size:1.15rem; line-height:1;
}
.mobile-menu{display:none; background:var(--forest-2); box-shadow:var(--e2);
             position:sticky; top:var(--nav-h); z-index:79}
.mobile-menu.open{display:block}
.mobile-menu a{display:block; color:var(--on-dark); font-weight:600;
               padding:13px 20px; border-bottom:1px solid rgba(255,255,255,.07)}
.mobile-menu a:hover{background:rgba(255,255,255,.07); text-decoration:none}

/* ---------- buttons (material) ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:var(--font); font-weight:700; font-size:.92rem;
  padding:10px 20px; border-radius:var(--r-sm); border:0; cursor:pointer;
  text-decoration:none; position:relative; overflow:hidden;
  transition:background .15s var(--ease), box-shadow .15s var(--ease), transform .12s var(--ease);
}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--emerald); color:#fff; box-shadow:var(--e1)}
.btn-primary:hover{background:var(--emerald-h); box-shadow:var(--e2)}
.btn-gold{background:var(--gold); color:var(--deep); box-shadow:var(--e1)}
.btn-gold:hover{background:#B9973F; box-shadow:var(--e2)}
.btn-secondary{background:var(--secondary); color:var(--ink)}
.btn-secondary:hover{background:#D6DCDA}
.btn-ghost{background:rgba(255,255,255,.12); color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.btn-outline{background:transparent; color:var(--emerald); box-shadow:inset 0 0 0 1.5px var(--emerald)}
.btn-outline:hover{background:var(--mint-soft)}
.btn-lg{padding:13px 28px; font-size:1rem; border-radius:var(--r)}
.btn-block{display:flex; width:100%}

/* material ripple */
.ripple{position:absolute; border-radius:50%; transform:scale(0);
        background:rgba(255,255,255,.42); pointer-events:none;
        animation:ripple .55s var(--ease)}
.btn-secondary .ripple,.btn-outline .ripple,.btn-gold .ripple{background:rgba(6,42,30,.18)}
@keyframes ripple{to{transform:scale(2.6); opacity:0}}

/* ---------- cards ---------- */
.card{
  background:var(--card); border-radius:var(--r); box-shadow:var(--e1);
  padding:22px; transition:box-shadow .2s var(--ease), transform .2s var(--ease);
}
.card-hover:hover{box-shadow:var(--e3); transform:translateY(-2px)}
.card-lg{padding:30px; border-radius:var(--r-lg)}
.card-flush{padding:0; overflow:hidden}
.card-head{
  padding:16px 22px; border-bottom:1px solid var(--divider);
  display:flex; align-items:center; gap:10px;
}
.card-head h3{margin:0}
.card-body{padding:22px}
.card-accent{border-top:3px solid var(--emerald)}
.card-accent-gold{border-top:3px solid var(--gold)}

.grid{display:grid; gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

/* ---------- chips / pills / badges ---------- */
.chip{
  display:inline-flex; align-items:center; gap:6px;
  background:var(--secondary); color:var(--ink-2);
  padding:5px 12px; border-radius:999px; font-size:.78rem; font-weight:700;
}
.chip-mint{background:var(--mint-soft); color:#0B5E42}
.chip-gold{background:var(--gold-soft); color:#7A6122}
.chip-dark{background:rgba(255,255,255,.12); color:var(--on-dark)}
.chip-risk{background:#FDE9E7; color:#9B2C21}

.eyebrow{
  display:inline-block; color:var(--gold); font-size:.72rem; font-weight:800;
  letter-spacing:.16em; text-transform:uppercase; margin-bottom:10px;
}
.eyebrow-dark{color:var(--emerald)}

/* icon tile */
.itile{
  width:44px; height:44px; border-radius:var(--r); flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  background:var(--mint-soft); color:var(--emerald); font-size:1.25rem;
}
.itile-gold{background:var(--gold-soft); color:#8A6D22}
.itile-dark{background:rgba(63,224,166,.14); color:var(--mint)}

/* ---------- hero ---------- */
.hero{
  background:
    radial-gradient(1100px 520px at 78% -12%, rgba(63,224,166,.20), transparent 62%),
    radial-gradient(700px 420px at 8% 108%, rgba(201,169,97,.14), transparent 60%),
    linear-gradient(160deg, #0B3527 0%, var(--deep) 62%, #041B13 100%);
  color:var(--on-dark); padding:66px 0 74px; position:relative; overflow:hidden;
}
.hero::after{ /* faint mesh, echoes the logo's node graph */
  content:""; position:absolute; inset:0; pointer-events:none; opacity:.5;
  background-image:
    linear-gradient(rgba(63,224,166,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(63,224,166,.055) 1px, transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 40%, #000, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%, #000, transparent 78%);
}
.hero .wrap{position:relative; z-index:1}
.hero h1{color:#fff; font-size:2.9rem; max-width:16ch}
.hero-lede{font-size:1.16rem; color:var(--on-dark-2); max-width:56ch; margin-bottom:26px}
.hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:38px; align-items:center}
.hero-shield{width:min(290px,80%); height:auto; margin:0 auto;
             filter:drop-shadow(0 18px 46px rgba(0,0,0,.5));
             animation:float 7s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.hero-actions{display:flex; gap:12px; flex-wrap:wrap}
.hero-note{margin-top:20px; font-size:.85rem; color:var(--on-dark-2); opacity:.85}

.page-head{
  background:linear-gradient(160deg,#0B3527,var(--deep));
  color:var(--on-dark); padding:44px 0 40px;
}
.page-head h1{color:#fff; font-size:2.1rem; margin-bottom:.3em}
.page-head p{color:var(--on-dark-2); max-width:62ch; margin:0; font-size:1.04rem}

/* ---------- trust strip ---------- */
.strip{background:var(--card); border-bottom:1px solid var(--divider); padding:16px 0}
.strip-in{display:flex; gap:10px; flex-wrap:wrap; justify-content:center; align-items:center}
.strip-label{color:var(--ink-3); font-size:.74rem; font-weight:800;
             letter-spacing:.13em; text-transform:uppercase; margin-right:6px}

/* ---------- feature / list bits ---------- */
.feat{display:flex; gap:14px; align-items:flex-start}
.feat h3{margin-bottom:.25em}
.feat p{margin:0; color:var(--ink-2); font-size:.92rem}

.checks{list-style:none; padding:0; margin:0}
.checks li{position:relative; padding:7px 0 7px 30px; color:var(--ink-2); font-size:.93rem}
.checks li::before{
  content:"✓"; position:absolute; left:0; top:7px;
  color:var(--emerald); font-weight:900; font-size:.95rem;
}
.checks-x li::before{content:"✕"; color:#C0392B}
.checks-dark li{color:var(--on-dark-2)}
.checks-dark li::before{color:var(--mint)}

/* comparison table */
.tbl{width:100%; border-collapse:collapse; font-size:.92rem}
.tbl th,.tbl td{padding:13px 14px; text-align:left; border-bottom:1px solid var(--divider)}
.tbl thead th{background:var(--hover); color:var(--deep); font-weight:800;
              font-size:.78rem; letter-spacing:.05em; text-transform:uppercase}
.tbl tbody tr:last-child td{border-bottom:0}
.tbl tbody tr:hover{background:var(--hover)}
.tbl .yes{color:var(--emerald); font-weight:800}
.tbl .no{color:#C0392B; font-weight:800}

/* numbered process */
.steps{counter-reset:s; display:grid; gap:14px}
.step{display:flex; gap:16px; align-items:flex-start; counter-increment:s}
.step::before{
  content:counter(s); flex-shrink:0;
  width:34px; height:34px; border-radius:50%;
  background:var(--emerald); color:#fff; font-weight:800; font-size:.92rem;
  display:flex; align-items:center; justify-content:center; box-shadow:var(--e1);
}
.step h3{margin-bottom:.2em}
.step p{margin:0; color:var(--ink-2); font-size:.92rem}

/* quote / callout */
.callout{
  background:var(--mint-soft); border-left:4px solid var(--emerald);
  border-radius:0 var(--r) var(--r) 0; padding:16px 20px; color:#0B4A34;
}
.callout-gold{background:var(--gold-soft); border-left-color:var(--gold); color:#6E5719}
.callout-risk{background:#FDE9E7; border-left-color:#C0392B; color:#8C2419}
.callout strong{color:inherit}

/* accordion (FAQ / objections) */
.acc{background:var(--card); border-radius:var(--r); box-shadow:var(--e1); overflow:hidden}
.acc + .acc{margin-top:10px}
.acc summary{
  padding:16px 20px; cursor:pointer; font-weight:700; color:var(--deep);
  list-style:none; display:flex; align-items:center; justify-content:space-between; gap:12px;
}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:"+"; color:var(--emerald); font-size:1.35rem; font-weight:400; line-height:1}
.acc[open] summary::after{content:"−"}
.acc summary:hover{background:var(--hover)}
.acc-body{padding:0 20px 18px; color:var(--ink-2); font-size:.93rem}
.acc-body p:last-child{margin-bottom:0}

/* CTA band */
.cta{
  background:linear-gradient(135deg,var(--forest),var(--deep));
  border-radius:var(--r-lg); padding:36px; color:var(--on-dark);
  box-shadow:var(--e3); text-align:center;
}
.cta h2{color:#fff}
.cta p{color:var(--on-dark-2); max-width:54ch; margin:0 auto 22px}

/* form */
.field{margin-bottom:15px}
.field label{display:block; font-weight:700; font-size:.85rem; color:var(--deep); margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%; padding:11px 13px; font-family:var(--font); font-size:.94rem;
  color:var(--ink); background:var(--hover);
  border:1px solid var(--divider); border-radius:var(--r-sm);
  transition:border-color .15s var(--ease), background .15s var(--ease), box-shadow .15s var(--ease);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0; background:#fff; border-color:var(--emerald);
  box-shadow:0 0 0 3px rgba(18,128,90,.14);
}
.field textarea{resize:vertical; min-height:110px}
.field-hint{font-size:.78rem; color:var(--ink-3); margin-top:5px}

/* ---------- footer ---------- */
.footer{background:var(--deep); color:var(--on-dark-2); padding:44px 0 22px; margin-top:52px}
.footer-grid{display:grid; grid-template-columns:1.6fr 1fr 1fr 1fr; gap:28px}
.footer h4{color:#fff; font-size:.78rem; letter-spacing:.13em;
           text-transform:uppercase; margin-bottom:12px}
.footer a{color:var(--on-dark-2); font-size:.9rem; display:block; padding:4px 0}
.footer a:hover{color:var(--mint); text-decoration:none}
.footer-brand{display:flex; align-items:center; gap:11px; margin-bottom:12px}
.footer-brand img{width:38px}
.footer-brand span{color:#fff; font-weight:800; font-size:1.05rem}
.footer-tag{font-size:.88rem; max-width:34ch; margin:0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10); margin-top:32px; padding-top:18px;
  display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap; font-size:.82rem;
}

/* ---------- utilities ---------- */
.center{text-align:center}
.muted{color:var(--ink-2)}
.small{font-size:.85rem}
.mb0{margin-bottom:0}
.mt24{margin-top:24px}
.mt32{margin-top:32px}
.lede{font-size:1.08rem; color:var(--ink-2)}
.reveal{opacity:0; transform:translateY(16px);
        transition:opacity .55s var(--ease), transform .55s var(--ease)}
.reveal.in{opacity:1; transform:none}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr; gap:24px}
  .hero-shield{width:200px; order:-1}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  h1{font-size:1.85rem}
  .hero h1{font-size:2.05rem}
  .hero{padding:44px 0 50px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .nav-links,.nav-cta{display:none}
  .hamburger{display:block}
  .section{padding:32px 0}
  .cta{padding:26px 20px}
  .card-lg{padding:22px}
  .footer-grid{grid-template-columns:1fr}
  .tbl{font-size:.85rem}
  .tbl th,.tbl td{padding:10px 8px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important; transition:none !important; scroll-behavior:auto !important}
  .reveal{opacity:1; transform:none}
}

@media print{
  .nav,.mobile-menu,.footer,.cta,.hero-actions{display:none}
  body{background:#fff}
  .card{box-shadow:none; border:1px solid var(--divider)}
}