/* ============================================================
   RSI — Remediation Service, Int'l
   Design tokens: gunmetal steel + logo green, condensed
   industrial type, blueprint/instrumentation motifs.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --ink:        #15191C;
  --steel-900:  #1B262D;
  --steel-800:  #223138;
  --steel-700:  #2E4049;
  --steel-500:  #4C6570;
  --steel-300:  #8FA3AB;
  --paper:      #EDEAE2;
  --paper-dim:  #E1DDD1;
  --white:      #FAF9F6;
  --flame:      #4C794C;
  --flame-dark: #326332;
  --flame-tint: #DDE8DD;
  --gauge:      #4C7A63;
  --gauge-dark: #395C4B;
  --line:       rgba(21,25,28,.14);
  --line-dark:  rgba(250,249,246,.16);

  --display: 'Oswald', 'Arial Narrow', sans-serif;
  --body:    'IBM Plex Sans', -apple-system, Helvetica, Arial, sans-serif;
  --mono:    'IBM Plex Mono', 'Courier New', monospace;

  --container: 1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--body);
  background:var(--paper);
  color:var(--ink);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
h1,h2,h3,h4{
  font-family:var(--display);
  text-transform:uppercase;
  letter-spacing:.02em;
  margin:0 0 .5em;
  font-weight:600;
  color:var(--steel-900);
}
p{margin:0 0 1em;}
.wrap{max-width:var(--container);margin:0 auto;padding:0 28px;}
.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--flame-dark);
  display:flex;
  align-items:center;
  gap:.6em;
  margin-bottom:.9em;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--flame-dark);
  display:inline-block;
}
:focus-visible{outline:2px solid var(--flame);outline-offset:2px;}

/* ---------- corner-bracket panel motif ---------- */
.bracket{
  position:relative;
  border:1px solid var(--line);
}
.bracket::before,.bracket::after{
  content:"";
  position:absolute;
  width:14px;height:14px;
  border:2px solid var(--flame);
  opacity:.85;
}
.bracket::before{top:-1px;left:-1px;border-right:none;border-bottom:none;}
.bracket::after{bottom:-1px;right:-1px;border-left:none;border-top:none;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--steel-900);
  border-bottom:1px solid var(--line-dark);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:76px;gap:16px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--white);}
.brand img{width:40px;height:40px;border-radius:3px;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text strong{
  font-family:var(--display);
  font-size:.92rem;letter-spacing:.04em;text-transform:uppercase;color:var(--white);
  white-space:nowrap;
}
.brand-text span{
  font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;color:var(--steel-300);
  text-transform:uppercase;
}
nav.primary{display:flex;align-items:center;gap:2px;}
nav.primary a{
  font-family:var(--display);
  font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;
  color:var(--steel-300);
  text-decoration:none;
  padding:10px 11px;
  white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:color .15s ease, border-color .15s ease;
}
nav.primary a:hover,nav.primary a.active{color:var(--white);border-color:var(--flame);}
.header-cta{display:flex;align-items:center;gap:18px;}
.header-cta .tel{
  font-family:var(--mono);font-size:.78rem;color:var(--steel-300);text-decoration:none;
  display:none;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  font-family:var(--display);font-size:.82rem;letter-spacing:.05em;text-transform:uppercase;
  padding:11px 18px;border-radius:2px;text-decoration:none;
  border:1px solid transparent;cursor:pointer;transition:transform .12s ease, background .15s ease;
}
.btn-flame{background:var(--flame);color:var(--white);}
.btn-flame:hover{background:var(--flame-dark);}
.btn-outline{border-color:var(--line-dark);color:var(--white);background:transparent;}
.btn-outline:hover{border-color:var(--flame);color:var(--flame);}
.btn-outline-dark{border-color:var(--steel-500);color:var(--steel-900);background:transparent;}
.btn-outline-dark:hover{border-color:var(--flame);color:var(--flame-dark);}
.nav-toggle{display:none;background:none;border:none;color:var(--white);font-size:1.6rem;cursor:pointer;}

@media (max-width:920px){
  nav.primary{
    position:fixed;top:76px;left:0;right:0;bottom:0;
    background:var(--steel-900);
    flex-direction:column;align-items:flex-start;
    padding:20px 28px;gap:6px;
    transform:translateX(100%);
    transition:transform .25s ease;
    overflow-y:auto;
  }
  nav.primary.open{transform:translateX(0);}
  nav.primary a{width:100%;padding:14px 0;border-bottom:1px solid var(--line-dark);font-size:1.05rem;}
  .header-cta .btn-outline{display:none;}
  .nav-toggle{display:block;}
}

/* ---------- hero ---------- */
.hero{
  background:var(--steel-900);
  color:var(--white);
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line-dark);
}
.hero .wrap{
  padding:76px 28px 64px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;
}
.hero h1{
  color:var(--white);
  font-size:clamp(2.1rem,4vw,3.4rem);
  line-height:1.05;
  margin-bottom:.4em;
}
.hero h1 em{font-style:normal;color:var(--flame);}
.hero .lede{
  font-size:1.08rem;color:var(--steel-300);max-width:46ch;margin-bottom:1.6em;
}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:2em;}
.hero .stat-strip{display:flex;gap:28px;flex-wrap:wrap;border-top:1px solid var(--line-dark);padding-top:20px;}
.hero .stat{font-family:var(--mono);flex:0 1 175px;max-width:175px;}
.hero .stat b{display:block;font-family:var(--display);font-size:1.7rem;color:var(--white);}
.hero .stat span{font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--steel-300);line-height:1.4;}

@media (max-width:920px){
  .hero .wrap{grid-template-columns:1fr;padding:44px 20px 40px;}
}

/* ---------- controller readout panel (signature element) ---------- */
.controller-shot{margin:0;}
.controller-shot img{
  width:100%;height:auto;
  border:1px solid var(--line-dark);
  background:var(--steel-800);
}
.controller-shot figcaption{
  font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--steel-300);text-align:center;margin-top:14px;line-height:1.5;
}

/* ---------- generic page hero (interior pages) ---------- */
.page-hero{background:var(--steel-900);color:var(--white);border-bottom:1px solid var(--line-dark);}
.page-hero .wrap{padding:52px 28px 44px;}
.page-hero h1{color:var(--white);font-size:clamp(1.9rem,3.4vw,2.7rem);margin-bottom:.3em;}
.page-hero .lede{color:var(--steel-300);max-width:62ch;font-size:1.02rem;}
.breadcrumb{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--steel-300);
  text-transform:uppercase;margin-bottom:1.2em;
}
.breadcrumb a{color:var(--steel-300);text-decoration:none;}
.breadcrumb a:hover{color:var(--flame);}

/* ---------- sections ---------- */
section{padding:64px 0;}
section.tight{padding:44px 0;}
.section-head{max-width:64ch;margin-bottom:2.4em;}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);}
.section-head p{color:var(--steel-700);font-size:1.02rem;}
.divider{height:1px;background:var(--line);}
.band-dark{background:var(--steel-900);color:var(--white);}
.band-dark h2,.band-dark h3,.band-dark h4{color:var(--white);}
.band-dark p{color:var(--steel-300);}
.band-paper-dim{background:var(--paper-dim);}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:24px;}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
@media (max-width:960px){.grid-4{grid-template-columns:repeat(2,1fr);}.grid-3{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr;}}

.card{
  background:var(--white);
  border:1px solid var(--line);
  padding:26px 24px;
  position:relative;
}
.card .num{
  font-family:var(--mono);font-size:.72rem;color:var(--flame-dark);letter-spacing:.08em;
  margin-bottom:.8em;display:block;
}
.card h3{font-size:1.05rem;margin-bottom:.5em;}
.card p{color:var(--steel-700);font-size:.94rem;margin-bottom:.9em;}
.card a.more{
  font-family:var(--mono);font-size:.76rem;letter-spacing:.04em;text-decoration:none;
  color:var(--flame-dark);border-bottom:1px solid var(--flame-dark);padding-bottom:2px;
}
.card a.more:hover{color:var(--ink);border-color:var(--ink);}

/* ---------- spec list (services detail) ---------- */
.spec-block{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;padding:52px 0;border-top:1px solid var(--line);}
.spec-block:first-of-type{border-top:none;}
.spec-list{list-style:none;margin:0;padding:0;display:grid;gap:12px;}
.spec-list li{
  display:flex;gap:12px;padding:14px 16px;background:var(--white);border:1px solid var(--line);font-size:.94rem;
}
.spec-list li::before{content:"▸";color:var(--flame);font-weight:700;}
@media (max-width:860px){.spec-block{grid-template-columns:1fr;gap:24px;}}

/* ---------- stat / trust strip ---------- */
.trust-strip{padding:34px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.trust-strip .wrap{display:flex;align-items:center;gap:40px;flex-wrap:wrap;justify-content:space-between;}
.trust-strip .label{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--steel-500);}
.trust-logos{display:flex;gap:28px;flex-wrap:wrap;}
.trust-logos span{
  font-family:var(--display);font-size:1.05rem;letter-spacing:.03em;color:var(--steel-700);
  text-transform:uppercase;opacity:.75;
}

/* logo wall variant — client marks stack under the label */
.trust-strip.logo-wall{padding:30px 0;}
.trust-strip.logo-wall .wrap{display:block;}
.trust-strip.logo-wall .label{display:block;margin-bottom:16px;}
.trust-logos.marks{gap:16px 30px;align-items:center;}
.trust-logos.marks img{
  height:30px;width:auto;max-width:136px;
  opacity:.62;transition:opacity .18s ease;
}
.trust-logos.marks img:hover{opacity:1;}
@media (max-width:640px){
  .trust-logos.marks{gap:14px 22px;}
  .trust-logos.marks img{height:24px;max-width:108px;}
}

/* ---------- callout / cogeneration band ---------- */
.callout{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  background:var(--gauge-dark);color:var(--white);padding:56px 0;
}
.callout h2{color:var(--white);}
.callout .metric{
  font-family:var(--mono);border:1px solid var(--line-dark);padding:22px;
}
.callout .metric b{font-family:var(--display);font-size:2.2rem;display:block;color:var(--white);}
.callout .metric span{font-size:.74rem;text-transform:uppercase;letter-spacing:.08em;color:rgba(255,255,255,.65);}
@media (max-width:860px){.callout{grid-template-columns:1fr;}}

/* ---------- certifications / badges ---------- */
.badge-grid{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  font-family:var(--mono);font-size:.74rem;letter-spacing:.04em;
  border:1px solid var(--line);padding:7px 12px;background:var(--white);
}

/* ---------- forms ---------- */
.form-grid{display:grid;gap:16px;grid-template-columns:1fr 1fr;}
.form-grid .full{grid-column:1/-1;}
label{display:block;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--steel-700);margin-bottom:6px;}
input,select,textarea{
  width:100%;padding:11px 12px;border:1px solid var(--line);background:var(--white);
  font-family:var(--body);font-size:.94rem;color:var(--ink);
}
textarea{resize:vertical;min-height:110px;}
input:focus,select:focus,textarea:focus{border-color:var(--flame);}
@media (max-width:640px){.form-grid{grid-template-columns:1fr;}}
.form-note{font-size:.82rem;color:var(--steel-500);margin-top:10px;}
.form-success{
  display:none;background:var(--gauge);color:var(--white);padding:14px 16px;font-size:.92rem;margin-top:14px;
}
.form-success.show{display:block;}
.form-error{
  display:none;background:var(--flame-tint);color:var(--flame-dark);border:1px solid var(--flame);
  padding:14px 16px;font-size:.92rem;margin-top:14px;
}
.form-error.show{display:block;}
button[disabled]{opacity:.6;cursor:not-allowed;}

/* ---------- footer ---------- */
footer{background:var(--steel-900);color:var(--steel-300);padding:56px 0 28px;}
footer .grid-4{margin-bottom:40px;}
footer h4{color:var(--white);font-size:.9rem;margin-bottom:1em;}
footer a{color:var(--steel-300);text-decoration:none;font-size:.9rem;line-height:2;}
footer a:hover{color:var(--flame);}
footer .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
footer .foot-brand img{width:32px;height:32px;border-radius:3px;}
footer .foot-brand strong{font-family:var(--display);color:var(--white);letter-spacing:.04em;text-transform:uppercase;}
footer .fine{
  border-top:1px solid var(--line-dark);padding-top:22px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-family:var(--mono);font-size:.74rem;
}
.social-row{display:flex;gap:14px;margin-top:14px;}
.social-row a{
  width:34px;height:34px;border:1px solid var(--line-dark);display:flex;align-items:center;justify-content:center;
  border-radius:50%;font-size:.85rem;
}
.social-row a:hover{border-color:var(--flame);color:var(--flame);}

/* ---------- utility ---------- */
.center{text-align:center;}
.mt{margin-top:2.4em;}
.small{font-size:.86rem;color:var(--steel-500);}
.pill{
  display:inline-block;font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;
  background:var(--flame-tint);color:var(--flame-dark);padding:4px 10px;border-radius:2px;
}