/*
Theme Name: FIE 2026
Theme URI: https://fietechnologies.com
Author: FIE Technologies
Description: Custom theme for FIE Technologies, built to Brand Guidelines v1.0 (Sept 2026). Instrument Serif display, Archivo UI, IBM Plex Mono labels, Harbor Navy and Carolina at a 50/30/20 ratio, square corners on a 4px rhythm.
Version: 1.1.0
Requires at least: 6.0
Requires PHP: 8.0
License: Proprietary
Text Domain: fie2026
*/

/* ---- brand tokens, v1.0 Sept 2026 ---- */
:root{
  --navy:#0B2545;
  --carolina:#4B9CD3;
  --deep:#1E6FA8;
  --steel:#7D8794;
  --slate:#5A6672;
  --paper:#F4F6F8;
  --white:#FFFFFF;

  --ground:var(--paper);
  --surface:var(--white);
  --ink:var(--navy);
  --ink-soft:var(--slate);
  --rule:#D9DEE5;
  --rule-strong:var(--steel);
  --link:var(--deep);
  --band:var(--navy);
  --band-ink:var(--white);
  --band-soft:#9FB3C8;
  --band-rule:#1D3A5F;

  --step:4px;
  --measure:64ch;
  --display:"Instrument Serif",Georgia,"Times New Roman",serif;
  --ui:"Archivo","Helvetica Neue",Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ground);
  color:var(--ink);
  font-family:var(--ui);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding-left:20px;padding-right:20px}
.screen-reader-text{
  position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);
  white-space:nowrap;border:0;padding:0;margin:-1px;
}
.skip-link:focus{
  position:fixed;top:8px;left:8px;z-index:100;width:auto;height:auto;clip:auto;
  background:var(--navy);color:var(--white);padding:12px 16px;
}

/* ---- type ---- */
h1,h2,h3{margin:0;text-wrap:balance}
.d1,.d2{font-family:var(--display);font-weight:400;letter-spacing:-0.015em}
.d1{font-size:clamp(46px,8.4vw,104px);line-height:0.95}
.d2{font-size:clamp(30px,4.4vw,46px);line-height:1.05}
.eyebrow{
  font-family:var(--mono);font-size:12px;font-weight:500;
  text-transform:uppercase;letter-spacing:0.12em;color:var(--deep);margin:0;
}
.band .eyebrow{color:var(--carolina)}
.lede{font-size:clamp(18px,2vw,21px);line-height:1.6;color:var(--ink-soft);max-width:60ch;margin:0}
p{margin:0;max-width:var(--measure)}
a{color:var(--link);text-decoration-thickness:1px;text-underline-offset:3px}
.italic{font-style:italic}

/* ---- layout ---- */
section{padding-block:clamp(56px,8vw,104px)}
.stack{display:flex;flex-direction:column;gap:calc(var(--step)*4)}
.stack-lg{display:flex;flex-direction:column;gap:calc(var(--step)*8)}
.rule-top{border-top:1px solid var(--rule)}

/* ---- header ---- */
header.site{
  position:sticky;top:0;z-index:20;
  background:rgba(244,246,248,0.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--rule);
}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
nav.main ul{display:flex;gap:calc(var(--step)*7);align-items:center;list-style:none;margin:0;padding:0}
nav.main a{font-size:15px;font-weight:500;color:var(--ink);text-decoration:none}
nav.main a:hover{color:var(--link);text-decoration:underline}
@media (max-width:900px){nav.main{display:none}}

/* ---- logo ---- */
.logo{display:inline-flex;align-items:center;gap:12px;text-decoration:none;flex:0 0 auto}
.mark{display:grid;grid-template-columns:repeat(2,1fr);gap:3px;width:26px;height:26px;flex:0 0 auto}
.mark i{display:block;background:var(--navy)}
.mark i.lit{background:var(--carolina)}
.mark.lg{width:40px;height:40px;gap:4px}
.word{
  font-family:var(--ui);font-weight:700;font-size:19px;
  letter-spacing:0.12em;text-transform:uppercase;color:var(--ink);white-space:nowrap;
}
.word b{color:var(--deep);font-weight:700}
.band .word,footer.site .word{color:var(--white)}
.band .word b,footer.site .word b{color:var(--carolina)}
.band .mark i,footer.site .mark i{background:var(--white)}
.band .mark i.lit,footer.site .mark i.lit{background:var(--carolina)}

/* ---- buttons ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 calc(var(--step)*6);
  font-family:var(--ui);font-size:15px;font-weight:600;
  border-radius:0;border:1.5px solid transparent;cursor:pointer;
  text-decoration:none;white-space:nowrap;
}
.btn-primary{background:var(--navy);color:var(--white);border-color:var(--navy)}
.btn-primary:hover{background:#123156}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:rgba(11,37,69,0.08)}
/* Carolina is reserved for the conversational CTA and carries navy text: white on Carolina is 2.4:1 and never allowed */
.btn-talk{background:var(--carolina);color:var(--navy);border-color:var(--carolina)}
.btn-talk:hover{background:#63ACDC}
.band .btn-ghost{color:var(--white);border-color:#3D6590}
.band .btn-ghost:hover{background:#12294a}
.btn-row{display:flex;flex-wrap:wrap;gap:calc(var(--step)*3)}

/* ---- hero ---- */
.hero{padding-top:clamp(40px,6vw,72px)}
.hero-grid{display:grid;grid-template-columns:1.05fr 0.95fr;gap:clamp(32px,5vw,64px);align-items:start}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}}
.hero-copy{display:flex;flex-direction:column;gap:calc(var(--step)*6)}

/* ---- panels ---- */
.panel{background:var(--surface);border:1px solid var(--rule);display:flex;flex-direction:column}
.panel-hd{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:calc(var(--step)*3) calc(var(--step)*4);border-bottom:1px solid var(--rule);
}
.panel-bd{padding:calc(var(--step)*4);display:flex;flex-direction:column;gap:calc(var(--step)*3)}
.mono-label{font-family:var(--mono);font-size:11px;font-weight:500;text-transform:uppercase;letter-spacing:0.12em;color:var(--slate)}
.band .mono-label,footer.site .mono-label{color:var(--band-soft)}
.badge{
  font-family:var(--mono);font-size:11px;font-weight:500;text-transform:uppercase;letter-spacing:0.12em;
  padding:4px 8px;border:1px solid var(--rule);color:var(--slate);background:transparent;
}
.badge.live{border-color:var(--rule-strong);color:var(--ink)}
.badge.esc{background:var(--navy);color:var(--white);border-color:var(--navy)}

.msg{max-width:88%;padding:calc(var(--step)*3) calc(var(--step)*4);font-size:15.5px;line-height:1.5}
.msg.them{background:var(--paper);color:var(--navy);align-self:flex-start;border:1px solid var(--rule)}
.msg.us{background:var(--carolina);color:var(--navy);align-self:flex-end;font-weight:500}
.msg-meta{font-family:var(--mono);font-size:11px;letter-spacing:0.12em;text-transform:uppercase;color:var(--slate);align-self:flex-end}

.chan{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:calc(var(--step)*3) 0;border-bottom:1px solid var(--rule);font-weight:500;font-size:15.5px;
}
.chan:last-child{border-bottom:0}

/* ---- capability grid ---- */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule)}
@media (max-width:900px){.cap-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.cap-grid{grid-template-columns:1fr}}
.cap{background:var(--surface);padding:calc(var(--step)*7);display:flex;flex-direction:column;gap:calc(var(--step)*3)}
.cap h3{font-family:var(--ui);font-weight:600;font-size:19px;line-height:1.3}
.cap p{font-size:15.5px;color:var(--ink-soft);max-width:34ch}
.cap ul{margin:0;padding-left:18px;font-size:15px;color:var(--ink-soft);display:flex;flex-direction:column;gap:2px}

/* ---- steps ---- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:calc(var(--step)*6)}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}
.step{display:flex;flex-direction:column;gap:calc(var(--step)*3);border-top:1px solid var(--rule-strong);padding-top:calc(var(--step)*4)}
.step .n{font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:0.12em;color:var(--deep)}
.band .step{border-top-color:var(--band-rule)}
.band .step .n{color:var(--carolina)}
.step h3{font-family:var(--ui);font-weight:600;font-size:18px;line-height:1.3}
.step p{font-size:15px;color:var(--ink-soft);max-width:30ch}
.band .step p{color:var(--band-soft)}

/* ---- bands ---- */
.band{background:var(--band);color:var(--band-ink)}
.band .lede,.band p{color:var(--band-soft)}
.band .d1,.band .d2{color:var(--band-ink)}
.quote{font-family:var(--display);font-size:clamp(26px,3.6vw,40px);line-height:1.1;letter-spacing:-0.015em;max-width:24ch}

.duo{display:grid;grid-template-columns:0.9fr 1.1fr;gap:clamp(28px,5vw,72px);align-items:start}
@media (max-width:860px){.duo{grid-template-columns:1fr}}

/* ---- tiers ---- */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:calc(var(--step)*4)}
@media (max-width:860px){.tiers{grid-template-columns:1fr}}
.tier{background:var(--surface);border:1px solid var(--rule);padding:calc(var(--step)*7);display:flex;flex-direction:column;gap:calc(var(--step)*4)}
.tier.feature{border-top:3px solid var(--navy)}
.tier h3{font-family:var(--ui);font-weight:600;font-size:20px}
.tier ul{margin:0;padding-left:18px;font-size:15px;color:var(--ink-soft);display:flex;flex-direction:column;gap:6px}

/* ---- faq ---- */
.faq{border-top:1px solid var(--rule)}
.faq details{border-bottom:1px solid var(--rule);padding-block:calc(var(--step)*5)}
.faq summary{
  cursor:pointer;font-family:var(--ui);font-weight:600;font-size:18px;
  list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:baseline;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--deep);font-size:18px;flex:0 0 auto}
.faq details[open] summary::after{content:"\2013"}
.faq details p{margin-top:calc(var(--step)*3);color:var(--ink-soft);font-size:16px}

/* ---- form ---- */
form.contact{display:grid;grid-template-columns:1fr 1fr;gap:calc(var(--step)*4)}
@media (max-width:620px){form.contact{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:calc(var(--step)*2)}
.field.full{grid-column:1/-1}
.field label{font-family:var(--mono);font-size:11px;font-weight:500;text-transform:uppercase;letter-spacing:0.12em;color:var(--band-soft)}
.field input,.field select,.field textarea{
  min-height:44px;padding:0 calc(var(--step)*3);
  font-family:var(--ui);font-size:16px;color:var(--white);
  background:#0A1E38;border:1px solid #2C5480;border-radius:0;
}
.field textarea{padding-top:calc(var(--step)*3);min-height:112px;resize:vertical;line-height:1.5}
.field input::placeholder,.field textarea::placeholder{color:#6E88A6}
/* focus ring is Carolina, 1.5px, no glow */
.field input:focus,.field select:focus,.field textarea:focus{outline:1.5px solid var(--carolina);outline-offset:0;border-color:var(--carolina)}
.form-foot{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;overflow:hidden}

.notice{
  grid-column:1/-1;padding:calc(var(--step)*4);font-size:15.5px;
  border:1px solid var(--carolina);border-left-width:3px;background:rgba(75,156,211,0.16);color:var(--white);
}
.notice.bad{border-color:#E4A11B;background:rgba(228,161,27,0.14)}
.notice p{max-width:none;color:var(--white)}

/* ---- editor content (pages) ---- */
.entry{max-width:68ch;display:flex;flex-direction:column;gap:calc(var(--step)*5)}
.entry h2{font-family:var(--display);font-weight:400;font-size:clamp(28px,3.6vw,40px);line-height:1.05;letter-spacing:-0.015em}
.entry h3{font-family:var(--ui);font-weight:600;font-size:22px}
.entry ul,.entry ol{padding-left:22px;display:flex;flex-direction:column;gap:6px}
.entry img{border:1px solid var(--rule)}
.entry blockquote{
  margin:0;padding-left:calc(var(--step)*5);border-left:3px solid var(--carolina);
  font-family:var(--display);font-size:24px;line-height:1.2;
}

/* ---- footer ---- */
footer.site{background:var(--band);color:var(--band-ink);padding-block:clamp(48px,6vw,72px)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:clamp(28px,4vw,56px)}
@media (max-width:760px){.foot-grid{grid-template-columns:1fr}}
.foot-col{display:flex;flex-direction:column;gap:calc(var(--step)*3)}
.foot-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:calc(var(--step)*2)}
.foot-col a{color:var(--band-soft);text-decoration:none;font-size:15px}
.foot-col a:hover{color:var(--white);text-decoration:underline}
.foot-col p{color:var(--band-soft);font-size:15px;max-width:34ch}
.foot-contact{display:flex;flex-direction:column;gap:calc(var(--step)*2);margin-top:calc(var(--step)*2)}
.foot-contact a{color:var(--band-soft);text-decoration:none;font-size:15px}
.foot-contact a:hover{color:var(--white);text-decoration:underline}
.form-foot .mono-label a{color:var(--carolina);text-decoration:none}
.form-foot .mono-label a:hover{text-decoration:underline}
.foot-base{
  margin-top:calc(var(--step)*10);padding-top:calc(var(--step)*5);
  border-top:1px solid var(--band-rule);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
}

a:focus-visible,summary:focus-visible,.btn:focus-visible,button:focus-visible{outline:1.5px solid var(--deep);outline-offset:3px}
.band a:focus-visible,.band .btn:focus-visible,footer.site a:focus-visible{outline-color:var(--carolina)}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}