/* Texoma Septic Systems — shared styles
   Tokens (locked 2026-08-07, contrast computed — see research/DESIGN_LOCK.md):
   deep lake #16323F | ink #22333C | water blue #2C5F78 / #245066 | red-river clay #A2543A / #8C4630
   paper #F5F3EE / warm #EDE9E0 | steel #5B6B72 / light #8FA0A8
   Type: Zilla Slab (display) / Source Sans 3 (body) / IBM Plex Mono (placard data) */

:root{
  --deep:#16323F; --ink:#22333C; --blue:#2C5F78; --blue-dk:#245066;
  --clay:#A2543A; --clay-dk:#8C4630; --paper:#F5F3EE; --paper-warm:#EDE9E0;
  --steel:#5B6B72; --steel-lt:#8FA0A8; --white:#FFFFFF;
  --line:rgba(91,107,114,.35);
  --display:"Zilla Slab",Georgia,serif;
  --body:"Source Sans 3","Segoe UI",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  --maxw:1080px;
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.6;font-size:1.0625rem}
img{max-width:100%;display:block}
a{color:var(--blue-dk)}
a:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 1.25rem}

/* Header */
.site-head{background:var(--deep);color:var(--white)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-top:.9rem;padding-bottom:.9rem;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--display);font-weight:600;font-size:1.22rem;color:var(--white);text-decoration:none;letter-spacing:.02em}
.brand-mark{width:2.1rem;height:2.1rem;flex:none;color:var(--paper)}
.brand .brand-text{display:block}
.brand .brand-sub{display:block;font-family:var(--mono);font-size:.62rem;letter-spacing:.13em;text-transform:uppercase;color:var(--steel-lt)}
.nav{display:flex;gap:1.05rem;flex-wrap:wrap;align-items:center}
.nav a,.nav summary{color:#E8ECEA;text-decoration:none;font-size:.95rem;border-bottom:2px solid transparent;padding:.8rem 0;cursor:pointer}
.nav a:hover,.nav summary:hover{border-bottom-color:var(--clay);color:var(--white)}
.nav summary:focus-visible{outline:3px solid var(--steel-lt);outline-offset:2px}
.nav-group{position:relative}
.nav-group summary{list-style:none;display:inline-block;user-select:none}
.nav-group summary::-webkit-details-marker{display:none}
.nav-group summary::marker{content:""}
.nav-group summary::after{content:" ▾";font-size:.78em}
.nav-group[open] summary::after{content:" ▴"}
.nav-group[open]>summary{color:var(--white);border-bottom-color:var(--clay)}
.nav-panel{position:absolute;left:0;top:100%;z-index:60;min-width:13rem;background:var(--paper-warm);border:2px solid var(--deep);border-radius:3px;padding:.35rem 0;box-shadow:4px 4px 0 rgba(0,0,0,.35)}
.nav-panel a{display:block;color:var(--ink);padding:.8rem 1rem;border-bottom:0;font-size:.98rem}
.nav-panel a:hover{background:#E0DBCF;color:var(--ink);border-bottom:0}
.nav-cta{background:var(--clay);color:var(--white);padding:.8rem .95rem;border-radius:4px;border-bottom:0;font-weight:600}
.nav-cta:hover{background:var(--clay-dk);border-bottom-color:transparent;color:var(--white)}
@media (max-width:560px){
  .nav-panel{position:static;box-shadow:none;border-width:1px;margin-top:.25rem}
}
@media (min-width:900px){
  .site-head .wrap{flex-wrap:nowrap}
  .nav{flex-wrap:nowrap;flex:1;margin-left:1.5rem}
  .nav-cta{margin-left:auto;white-space:nowrap}
}

/* Hero */
.hero{background:linear-gradient(180deg,var(--deep) 0%,#1E4254 100%);color:var(--white);padding:3.5rem 0 3rem}
.hero .wrap{display:grid;grid-template-columns:1.5fr 1fr;gap:2.5rem;align-items:center}
.hero h1{font-family:var(--display);font-weight:600;font-size:clamp(1.9rem,4.2vw,2.9rem);line-height:1.15}
.hero .lede{margin-top:1rem;font-size:1.15rem;color:#DCE4E2;max-width:34em}
.hero .hero-actions{margin-top:1.6rem;display:flex;gap:.9rem;flex-wrap:wrap}
.btn{display:inline-block;text-decoration:none;font-weight:600;padding:.7rem 1.25rem;border-radius:4px}
.btn-primary{background:var(--clay);color:var(--white)}
.btn-primary:hover{background:var(--clay-dk)}
.btn-ghost{border:1.5px solid var(--steel-lt);color:#E8ECEA}
.btn-ghost:hover{border-color:var(--white);color:var(--white)}

/* Site placard — signature element (confirmed figures only, always cited + dated) */
.placard{background:var(--paper-warm);color:var(--ink);border:2px solid var(--deep);border-radius:3px;padding:1.1rem 1.2rem;font-family:var(--mono);box-shadow:4px 4px 0 rgba(0,0,0,.35);position:relative}
.placard::before{content:"";position:absolute;top:6px;left:6px;right:6px;bottom:6px;border:1px solid var(--line);border-radius:2px;pointer-events:none}
.placard h2,.placard h3{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--blue-dk);margin-bottom:.7rem;text-align:center}
.placard .p-row{display:flex;justify-content:space-between;gap:1rem;padding:.42rem 0;border-top:1px dashed var(--steel);font-size:.9rem}
.placard .p-row:first-of-type{border-top:0}
.placard .p-row .v{font-weight:700;text-align:right}
.placard .p-src{margin-top:.7rem;font-size:.68rem;color:var(--steel);text-align:center;letter-spacing:.03em}

/* Sections */
section{padding:3rem 0}
.eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--clay-dk)}
h2.sec{font-family:var(--display);font-weight:600;font-size:clamp(1.5rem,3vw,2.1rem);margin:.35rem 0 1.1rem}
.prose p{margin-bottom:1rem;max-width:44em}
.prose h3{font-family:var(--display);font-size:1.25rem;margin:1.6rem 0 .5rem}
.prose ul,.prose ol{margin:0 0 1rem 1.2rem}
.prose li{margin-bottom:.4rem}
.prose table{border-collapse:collapse;margin:1rem 0;width:100%;max-width:44em;font-size:.95rem}
.prose th,.prose td{border:1px solid var(--line);padding:.55rem .7rem;text-align:left}
.prose th{background:var(--paper-warm);font-family:var(--mono);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase}
.vdate{font-size:.85rem;color:var(--steel);font-family:var(--mono)}
.cite{font-size:.85rem;color:var(--steel)}

/* Card grids */
.grid{display:grid;gap:1.1rem}
.grid-cities{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.grid-guides{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.card{background:var(--white);border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:4px;padding:1.15rem 1.2rem}
.card h3{font-family:var(--display);font-size:1.15rem;margin-bottom:.35rem}
.card h3 a{color:var(--ink);text-decoration:none}
.card h3 a:hover{color:var(--clay-dk)}
.card p{font-size:.95rem;color:#3E4A50}
.card .tag{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--steel)}
.card-guide{border-left-color:var(--clay)}

/* Alt band */
.band{background:#E7E4DB}
.band-deep{background:var(--deep);color:var(--white)}
.band-deep .eyebrow{color:var(--steel-lt)}
.band-deep a{color:#DCE4E2}

/* Breadcrumb */
.crumbs{font-size:.85rem;padding:1rem 0 0;color:#4C5A61}
.crumbs a{color:#4C5A61}
.crumbs span[aria-current]{color:var(--ink);font-weight:600}

/* Footer */
.site-foot{background:var(--deep);color:#C5CDCB;padding:2.2rem 0;font-size:.9rem}
.site-foot a{color:#E8ECEA}
.site-foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}
.site-foot p.foot-title{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--steel-lt);margin-bottom:.5rem}
.site-foot ul{list-style:none;padding:0}
.site-foot li{margin-bottom:.35rem}
.foot-note{margin-top:1.6rem;border-top:1px solid #2C4553;padding-top:1rem;font-size:.8rem;color:#9DA9A7}

/* CTA block — uniform button sitewide, per-page lead-in */
.cta-block{background:var(--paper-warm);border:2px solid var(--deep);border-radius:3px;padding:1.3rem 1.4rem;margin:2.2rem 0 0;max-width:34em}
.cta-block .cta-lead{font-family:var(--display);font-weight:600;font-size:1.25rem;margin:0 0 .9rem}

/* Lead form (contact page) — cookie-free, no third-party scripts */
.lead-form{background:var(--paper-warm);border:2px solid var(--deep);border-radius:3px;padding:1.4rem 1.5rem;max-width:34em;margin:1.5rem 0}
.lead-form .field{margin-bottom:1rem}
.lead-form label{display:block;font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink);margin-bottom:.35rem}
.lead-form .req,.lead-form .opt{color:#4C5A61;letter-spacing:.06em;text-transform:none;font-size:.7rem}
.lead-form input[type="text"],.lead-form input[type="email"],.lead-form select,.lead-form textarea{
  width:100%;padding:.6rem .7rem;font-family:var(--body);font-size:1rem;color:var(--ink);
  background:var(--white);border:1px solid var(--steel);border-radius:3px}
.lead-form input:focus-visible,.lead-form select:focus-visible,.lead-form textarea:focus-visible{outline:3px solid var(--blue);outline-offset:1px}
.lead-form button{border:0;cursor:pointer;font-family:var(--body);font-size:1rem}
.lead-form button:disabled{opacity:.6;cursor:default}
.form-status{font-weight:600;margin-bottom:1rem}
.form-status.success{color:#2E5E46}
.form-status.error{color:var(--clay-dk)}
.form-fine{font-size:.85rem;color:#4C5A61;margin-top:.9rem;max-width:38em}
.lead-form.sent .field,.lead-form.sent button,.lead-form.sent .form-fine,.lead-form.sent .hp{display:none}
.hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}

/* Content-page layout */
.page-title{font-family:var(--display);font-weight:600;font-size:clamp(1.7rem,3.6vw,2.5rem);line-height:1.15;margin:.5rem 0 0}
.page-actions{margin:1.2rem 0 2rem;display:flex;gap:.9rem;flex-wrap:wrap}
.page-actions .btn-ghost{border-color:var(--steel);color:var(--ink)}
.page-actions .btn-ghost:hover{border-color:var(--ink);color:var(--ink)}
.split{display:grid;grid-template-columns:1.6fr 1fr;gap:2.5rem;align-items:start}
.split-pad{margin-top:1.5rem}
.intro-pad{margin-top:1rem}
.placard-side{max-width:24rem}
.prose h2{font-family:var(--display);font-weight:600;font-size:1.45rem;margin:1.8rem 0 .6rem}
@media (max-width:760px){.split{grid-template-columns:1fr}}

/* FAQ */
.faq-item{border-top:1px solid var(--line);padding:.9rem 0}
.faq-heading{margin:0;font-family:var(--body);font-size:1.05rem}
.faq-heading button{all:unset;cursor:pointer;display:block;width:100%;font-weight:600;color:var(--ink)}
.faq-heading button::after{content:" +";color:var(--clay-dk)}
.faq-item.open .faq-heading button::after{content:" −"}
.faq-body{display:none;padding-top:.5rem;max-width:44em}
.faq-item.open .faq-body{display:block}

@media (max-width:760px){
  .hero .wrap{grid-template-columns:1fr}
  .site-foot .cols{grid-template-columns:1fr}
}