/* ============================================================
   Backstop Ops — shared styles
   ============================================================ */
:root{
  --ink:#0C1D24;
  --ink-2:#112B34;
  --ink-3:#17363F;
  --steel:#5E7B86;
  --steel-light:#9DB3BB;
  --paper:#E9ECE8;
  --paper-2:#DDE2DC;
  --amber:#F2A93B;
  --amber-deep:#D98A1F;
  --line-dark:rgba(157,179,187,.16);
  --line-light:rgba(12,29,36,.12);
  --display:"Bricolage Grotesque",system-ui,sans-serif;
  --body:"IBM Plex Sans",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --maxw:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--body);
  background:var(--ink);
  color:#EAF0F1;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* Section marker styled like a "caught chip" — echoes the hero net motif,
   deliberately NOT the tiny tracked-uppercase eyebrow look. */
.eyebrow{
  font-family:var(--body);
  font-size:.92rem;font-weight:500;letter-spacing:0;text-transform:none;
  color:#CFE0E4;
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(157,179,187,.05);
  border:1px solid var(--line-dark);
  padding:8px 15px 8px 13px;border-radius:5px;
}
.eyebrow::before{
  content:"";width:8px;height:8px;border-radius:50%;flex:none;
  background:var(--amber);box-shadow:0 0 9px rgba(242,169,59,.55);
}
.eyebrow.dark{color:#2c4751;background:rgba(12,29,36,.05);border-color:var(--line-light)}
.eyebrow.dark::before{background:var(--amber-deep);box-shadow:none}

h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.04;letter-spacing:-.02em}

.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-weight:600;font-size:.82rem;letter-spacing:.04em;
  padding:15px 24px;border-radius:2px;border:1px solid transparent;
  cursor:pointer;transition:transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
  text-transform:uppercase;
}
.btn-primary{background:var(--amber);color:var(--ink)}
.btn-primary:hover{background:#ffc15e;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#EAF0F1;border-color:var(--line-dark)}
.btn-ghost:hover{border-color:var(--steel-light);transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#0a161b;transform:translateY(-2px)}
.btn .arrow{transition:transform .2s ease}
.btn:hover .arrow{transform:translateX(4px)}

/* ---------- NAV ---------- */
header.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(12,29,36,.82);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-dark);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:13px;font-family:var(--display);font-weight:800;font-size:1.5rem;letter-spacing:-.02em;color:#fff}
.brand .mark{width:34px;height:34px;flex:none}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-size:.92rem;color:var(--steel-light);transition:color .2s}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:#fff}
.nav-links a[aria-current="page"]{position:relative}
.nav-links a[aria-current="page"]::after{content:"";position:absolute;left:0;bottom:-6px;width:100%;height:2px;background:var(--amber)}
.nav-cta{font-family:var(--mono);font-size:.76rem;letter-spacing:.04em;text-transform:uppercase;color:var(--amber);border:1px solid var(--line-dark);padding:9px 16px;border-radius:2px;transition:border-color .2s}
.nav-cta:hover{border-color:var(--amber)}
.nav-toggle{display:none;background:none;border:1px solid var(--line-dark);color:#fff;cursor:pointer;font-family:var(--mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;padding:9px 14px;border-radius:2px}
@media(max-width:860px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:block}
  .nav-links.open{display:flex;position:absolute;top:70px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;background:var(--ink);border-bottom:1px solid var(--line-dark)}
  .nav-links.open a{width:100%;padding:16px 28px;border-top:1px solid var(--line-dark)}
}

/* ---------- SECTION SCAFFOLD ---------- */
section{padding:96px 0}
.sec-head{max-width:680px}
.sec-head h2{font-size:clamp(2rem,3.6vw,2.9rem);margin-top:18px}
.sec-head p{margin-top:18px;color:var(--steel-light);font-size:1.08rem}
.light .sec-head p{color:#3c5159}

/* ---------- SUBPAGE HERO ---------- */
.subhero{padding:72px 0 80px;border-bottom:1px solid var(--line-dark);position:relative;overflow:hidden}
.subhero::after{content:"";position:absolute;top:-30%;right:-10%;width:380px;height:380px;background:radial-gradient(circle,rgba(242,169,59,.10),transparent 70%);pointer-events:none}
.subhero .crumb{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--steel);margin-bottom:22px}
.subhero .crumb a{color:var(--steel)}
.subhero .crumb a:hover{color:var(--amber)}
.subhero h1{font-size:clamp(2.4rem,5vw,4rem);max-width:18ch;margin-top:6px}
.subhero p.lead{margin-top:24px;font-size:1.15rem;color:var(--steel-light);max-width:56ch}
.subhero .actions{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- CATCH PAGE: leak detail blocks ---------- */
.leak-detail{
  display:grid;grid-template-columns:auto 1fr;gap:40px;
  padding:54px 0;border-bottom:1px solid var(--line-dark);
}
.leak-detail:last-child{border-bottom:0}
.leak-detail .lд{display:none}
.leak-detail .big-num{
  font-family:var(--display);font-weight:800;font-size:clamp(3rem,7vw,5.4rem);
  color:var(--ink-3);line-height:.8;letter-spacing:-.04em;
}
.leak-detail h2{font-size:clamp(1.6rem,3vw,2.2rem)}
.leak-detail .what{margin-top:16px;color:var(--steel-light);font-size:1.08rem;max-width:60ch}
.leak-detail .cost{
  margin-top:22px;display:flex;gap:13px;align-items:flex-start;
  font-size:1rem;color:#DBE5E7;background:var(--ink-2);
  border-left:2px solid var(--amber);padding:16px 20px;border-radius:0 3px 3px 0;max-width:62ch;
}
.leak-detail .cost b{color:var(--amber);font-weight:600;font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;display:block;margin-bottom:5px}
.leak-detail .fix{margin-top:22px;font-family:var(--mono);font-size:.84rem;color:var(--steel-light)}
.leak-detail .fix a{color:var(--amber);border-bottom:1px solid transparent;transition:border-color .2s}
.leak-detail .fix a:hover{border-color:var(--amber)}
@media(max-width:760px){
  .leak-detail{grid-template-columns:1fr;gap:14px}
  .leak-detail .big-num{font-size:3rem}
}

/* ---------- SYSTEMS PAGE: full system blocks ---------- */
.system-block{
  padding:60px 0;border-bottom:1px solid var(--line-dark);
  display:grid;grid-template-columns:240px 1fr;gap:48px;align-items:start;
}
.system-block:last-of-type{border-bottom:0}
.system-block .rail .sid{font-family:var(--mono);font-size:.8rem;color:var(--amber);letter-spacing:.08em}
.system-block .rail h2{font-size:clamp(1.7rem,3vw,2.3rem);margin-top:12px}
.system-block .rail .outcome{
  margin-top:18px;display:inline-block;font-family:var(--mono);font-size:.74rem;
  text-transform:uppercase;letter-spacing:.06em;color:var(--ink);background:var(--amber);
  padding:8px 14px;border-radius:2px;
}
.system-block .body .one-liner{font-size:1.18rem;color:#EAF0F1;max-width:60ch}
.sysgrid{margin-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:30px}
.sysgrid h4{font-family:var(--display);font-size:1rem;font-weight:600;letter-spacing:0;text-transform:none;color:var(--amber);margin-bottom:14px}
.sysgrid ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.sysgrid li{display:flex;gap:11px;color:var(--steel-light);font-size:1rem;line-height:1.45}
.sysgrid li svg{flex:none;margin-top:5px}
@media(max-width:860px){
  .system-block{grid-template-columns:1fr;gap:26px}
  .sysgrid{grid-template-columns:1fr;gap:24px}
}

/* ---------- HOW PAGE: step blocks ---------- */
.step-block{
  display:grid;grid-template-columns:120px 1fr;gap:40px;
  padding:56px 0;border-bottom:1px solid var(--line-dark);
}
.step-block .sn{font-family:var(--mono);font-size:.8rem;color:var(--amber);letter-spacing:.1em;padding-top:8px}
.step-block .sn .big{display:block;font-family:var(--display);font-weight:800;font-size:3.2rem;color:var(--ink-3);line-height:1;margin-top:10px}
.step-block h2{font-size:clamp(1.7rem,3vw,2.3rem)}
.step-block .detail{margin-top:16px;color:var(--steel-light);font-size:1.08rem;max-width:62ch}
.step-block .gets{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.step-block .gets span{font-family:var(--mono);font-size:.78rem;color:#DBE5E7;border:1px solid var(--line-dark);padding:8px 13px;border-radius:2px}
.step-block .timing{margin-top:20px;font-family:var(--mono);font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;color:var(--amber)}
@media(max-width:760px){
  .step-block{grid-template-columns:1fr;gap:16px}
  .step-block .sn .big{font-size:2.4rem}
}

/* ---------- PRINCIPLES (light strip) ---------- */
.principles{background:var(--paper);color:var(--ink)}
.principles .pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:50px;background:var(--line-light);border:1px solid var(--line-light)}
.principles .p{background:var(--paper);padding:30px 26px}
.principles .p h3{font-size:1.2rem;color:var(--ink)}
.principles .p p{margin-top:10px;color:#3c5159;font-size:.98rem}
@media(max-width:860px){.principles .pgrid{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq{max-width:780px;margin-top:50px}
.faq details{border-bottom:1px solid var(--line-dark);padding:6px 0}
.faq summary{
  cursor:pointer;list-style:none;padding:22px 0;font-family:var(--display);
  font-weight:600;font-size:1.18rem;color:#EAF0F1;display:flex;justify-content:space-between;align-items:center;gap:20px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .plus{font-family:var(--mono);color:var(--amber);font-size:1.4rem;transition:transform .2s;flex:none}
.faq details[open] summary .plus{transform:rotate(45deg)}
.faq .ans{padding:0 0 22px;color:var(--steel-light);font-size:1.04rem;max-width:68ch}

/* ---------- FORM ---------- */
.book{background:var(--ink-2);border-top:1px solid var(--line-dark)}
.book-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
.book-grid .pitch h2{font-size:clamp(2rem,3.6vw,2.8rem);margin-top:18px}
.book-grid .pitch p{margin-top:18px;color:var(--steel-light);font-size:1.08rem;max-width:42ch}
.book-grid .pitch .pricetag{
  margin-top:28px;display:flex;align-items:baseline;gap:12px;
  font-family:var(--display);
}
.book-grid .pitch .pricetag .amt{font-size:3rem;font-weight:800;color:var(--amber);letter-spacing:-.02em}
.book-grid .pitch .pricetag .note{font-family:var(--mono);font-size:.8rem;color:var(--steel-light);letter-spacing:.02em;text-transform:none}
.book-grid .pitch .creditline{margin-top:8px;font-family:var(--mono);font-size:.76rem;color:var(--steel);letter-spacing:.04em;text-transform:uppercase}

.formcard{background:var(--ink);border:1px solid var(--line-dark);border-radius:6px;padding:34px}
.field{margin-bottom:18px}
.field label{display:block;font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--steel-light);margin-bottom:8px}
.field label .req{color:var(--amber)}
.field input,.field select,.field textarea{
  width:100%;background:var(--ink-2);border:1px solid var(--line-dark);border-radius:3px;
  color:#EAF0F1;font-family:var(--body);font-size:1rem;padding:13px 14px;transition:border-color .2s;
}
.field input::placeholder,.field textarea::placeholder{color:#4d6470}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--amber)}
.field textarea{resize:vertical;min-height:96px}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239DB3BB' stroke-width='1.6' fill='none'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.hidden-hp{position:absolute;left:-9999px;opacity:0}
.formcard .btn-primary{width:100%;justify-content:center;margin-top:6px}
.formcard .fineprint{margin-top:16px;font-family:var(--mono);font-size:.7rem;color:var(--steel);letter-spacing:.03em;text-align:center}
.form-success{display:none;text-align:center;padding:30px 10px}
.form-success.show{display:block}
.form-success .check{width:54px;height:54px;margin:0 auto 18px;border-radius:50%;background:var(--amber);display:flex;align-items:center;justify-content:center}
.form-success h3{font-size:1.6rem;color:#fff}
.form-success p{margin-top:12px;color:var(--steel-light)}
@media(max-width:860px){
  .book-grid{grid-template-columns:1fr;gap:38px}
  .field-row{grid-template-columns:1fr}
}

/* ---------- CTA STRIP ---------- */
.cta{background:var(--amber);color:var(--ink);text-align:center}
.cta h2{font-size:clamp(2.2rem,4.4vw,3.4rem);max-width:18ch;margin:0 auto}
.cta p{margin:20px auto 0;max-width:52ch;color:#3a2a08;font-size:1.1rem}
.cta .btn-dark{margin-top:34px}
.cta .small{margin-top:18px;font-family:var(--mono);font-size:.74rem;letter-spacing:.04em;text-transform:uppercase;color:#5a4410}

/* ---------- FOOTER ---------- */
footer{background:var(--ink);padding:60px 0 40px;border-top:1px solid var(--line-dark)}
.foot-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;flex-wrap:wrap}
.foot-brand{display:flex;align-items:center;gap:11px;font-family:var(--display);font-weight:800;font-size:1.2rem;color:#fff}
.foot-brand .mark{width:26px;height:26px}
footer .tagline{color:var(--steel);margin-top:14px;font-size:.92rem;max-width:34ch}
.foot-links{display:flex;gap:40px;flex-wrap:wrap}
.foot-col h4{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--steel);margin-bottom:14px;font-weight:600}
.foot-col a{display:block;color:var(--steel-light);font-size:.94rem;margin-bottom:9px;transition:color .2s}
.foot-col a:hover{color:#fff}
.foot-bottom{margin-top:48px;padding-top:22px;border-top:1px solid var(--line-dark);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-family:var(--mono);font-size:.74rem;color:var(--steel);letter-spacing:.04em}