/* Layout: paper-white survey plan sheet; sources orange, receivers blue (the acquisition-plan convention); full-width bands with inner wrappers */
:root{
  --bg:#f4f6f8;        /* cool paper */
  --bg-2:#e8ecf0;      /* sheet grid tint */
  --ink:#141c26;       /* navy ink */
  --ink-2:#4a5664;     /* muted text */
  --line:#c9d1da;
  --src:#e4601a;       /* source / shot point */
  --rcv:#1b6ca8;       /* receiver */
  --panel:#141c26;     /* dark section bg */
  --panel-fg:#e9eef3;
  --panel-line:#2b3744;
  --f-display:"Barlow Condensed","IBM Plex Sans",system-ui,sans-serif;
  --f-body:"IBM Plex Sans",system-ui,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0f151c;--bg-2:#161e27;--ink:#e9eef3;--ink-2:#9aa8b6;--line:#2b3744;
  --src:#ff7a33;--rcv:#4ea3e0;--panel:#070b10;--panel-fg:#e9eef3;--panel-line:#1f2a36;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0f151c;--bg-2:#161e27;--ink:#e9eef3;--ink-2:#9aa8b6;--line:#2b3744;
  --src:#ff7a33;--rcv:#4ea3e0;--panel:#070b10;--panel-fg:#e9eef3;--panel-line:#1f2a36;color-scheme:dark}

*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.6;margin:0}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--bg)}
a{color:inherit}
h1,h2,h3{font-family:var(--f-display);line-height:1.02;margin:0;text-wrap:balance;font-weight:600}
h2{font-size:clamp(2.2rem,4.8vw,3.4rem);letter-spacing:-.01em;text-transform:uppercase}
h3{font-size:1.5rem}
p{margin:0}
.wrap{max-width:1120px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.eyebrow{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2)}
.eyebrow::before{content:"";display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--src);margin-right:.6em;vertical-align:-1px}
section{padding-block:clamp(56px,8vw,104px)}
.lead{color:var(--ink-2);max-width:62ch;font-size:1.05rem}
.btn{display:inline-flex;align-items:center;gap:.5em;font-family:var(--f-display);font-size:1.1rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;padding:.7em 1.3em;border:2px solid var(--ink);text-decoration:none;cursor:pointer;background:transparent;color:var(--ink);transition:background .15s,color .15s}
.btn.primary{background:var(--src);border-color:var(--src);color:#fff}
.btn:hover{background:var(--ink);color:var(--bg)}
.btn.primary:hover{background:var(--ink);border-color:var(--ink)}
.btn:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--rcv);outline-offset:2px}

/* nav */
nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:9;background:var(--bg);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px}
.brand{font-family:var(--f-display);font-weight:700;font-size:1.5rem;letter-spacing:.02em;text-decoration:none;display:flex;align-items:center;gap:.5em}
.brand svg{width:28px;height:28px}
nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0;font-family:var(--f-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
nav ul a{text-decoration:none;color:var(--ink-2)}
nav ul a:hover{color:var(--ink)}
@media (max-width:760px){nav ul{display:none}}

/* hero */
.hero{padding-block:clamp(40px,6vw,80px) 0}
.hero .wrap{display:grid;grid-template-columns:1fr;gap:36px}
.hero-top{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:end;padding-bottom:32px;border-bottom:1px solid var(--line)}
@media (max-width:820px){.hero-top{grid-template-columns:1fr;align-items:start}}
.spec{display:grid;grid-template-columns:auto 1fr;gap:0 24px;font-size:.95rem;align-self:end}
.spec dt{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);padding:12px 0;border-top:1px solid var(--line)}
.spec dd{margin:0;padding:12px 0;border-top:1px solid var(--line);color:var(--ink)}
.spec dt:first-of-type,.spec dd:first-of-type{border-top:0}
.panels-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:-20px}
.panels-head .m{font-family:var(--f-mono);font-size:.74rem;color:var(--ink-2);letter-spacing:.06em}
.panels{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:900px){.panels{grid-template-columns:1fr}}
.hero h1{font-size:clamp(2.6rem,7.2vw,6.4rem);letter-spacing:-.01em;font-weight:700;text-transform:uppercase;white-space:nowrap}
@media (max-width:560px){.hero h1{white-space:normal}}
.hero h1 em{font-style:normal;color:var(--src)}
.hero-copy{display:flex;flex-direction:column;gap:22px;min-width:0}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.plan{position:relative;border:1px solid var(--line);background:var(--bg-2);aspect-ratio:4/3;max-width:100%;min-width:0}
.plan canvas{display:block;width:100%;height:100%}
.plan .tag{position:absolute;font-family:var(--f-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);background:var(--bg);padding:3px 8px;border:1px solid var(--line)}
.plan .tag.tl{top:10px;left:10px}.plan .tag.br{bottom:10px;right:10px}
.plan .legend{position:absolute;bottom:10px;left:10px;display:flex;gap:12px;font-family:var(--f-mono);font-size:.7rem;background:var(--bg);padding:4px 8px;border:1px solid var(--line)}
.legend i{display:inline-block;width:10px;height:10px;margin-right:5px;vertical-align:-1px}
.legend .s{background:var(--src)}.legend .r{background:var(--rcv);border-radius:50%}

/* stats strip */
.strip-unused{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:clamp(40px,6vw,72px)}
.strip .wrap{display:grid;grid-template-columns:repeat(4,1fr);padding-block:0}
.strip div{padding-block:20px;border-left:1px solid var(--line);padding-left:18px}
.strip div:first-child{border-left:0;padding-left:0}
.strip b{display:block;font-family:var(--f-display);font-size:2.2rem;font-weight:600;line-height:1;font-variant-numeric:tabular-nums}
.strip span{font-size:.85rem;color:var(--ink-2)}
@media (max-width:760px){.strip .wrap{grid-template-columns:1fr 1fr}.strip div:nth-child(3){border-left:0;padding-left:0}}

/* services */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:36px}
.grid3>div{background:var(--bg);padding:26px 24px;display:flex;flex-direction:column;gap:12px;min-width:0}
.grid3 .code{font-family:var(--f-mono);font-size:.74rem;color:var(--rcv);letter-spacing:.1em}
.grid3 p{color:var(--ink-2);font-size:.95rem}
.grid3 ul{margin:0;padding-left:1.1em;font-size:.9rem;color:var(--ink-2)}
@media (max-width:900px){.grid3{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.grid3{grid-template-columns:1fr}}

/* process (dark band) */
.band{background:var(--panel);color:var(--panel-fg)}
.band .eyebrow{color:#9aa8b6}
.band .lead{color:#b5c0cb}
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:0;margin-top:40px;border-top:1px solid var(--panel-line)}
.steps div{padding:22px 16px 0 0;border-right:1px solid var(--panel-line);min-width:0;position:relative}
.steps div:last-child{border-right:0}
.steps div::before{content:"";position:absolute;top:-1px;left:0;width:36px;height:3px;background:var(--src)}
.steps .n{font-family:var(--f-mono);font-size:.74rem;color:#9aa8b6;letter-spacing:.1em}
.steps h3{font-size:1.25rem;margin:8px 0 8px}
.steps p{font-size:.86rem;color:#b5c0cb}
@media (max-width:900px){.steps{grid-template-columns:repeat(3,1fr)}.steps div{padding-bottom:22px;border-bottom:1px solid var(--panel-line)}.steps div:nth-child(3n){border-right:0}}
@media (max-width:560px){.steps{grid-template-columns:1fr}.steps div{border-right:0}}

/* parameters + calculator */
.kits{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px;align-items:start}
@media (max-width:900px){.kits{grid-template-columns:1fr}}
.tbl{overflow-x:auto;border:1px solid var(--line)}
table{border-collapse:collapse;width:100%;font-size:.9rem;min-width:520px}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);font-weight:500;background:var(--bg-2)}
td.m{font-family:var(--f-mono);font-size:.85rem;white-space:nowrap;font-variant-numeric:tabular-nums}
tr:last-child td{border-bottom:0}
.calc{border:1px solid var(--line);background:var(--bg-2);padding:24px}
.calc h3{margin-bottom:6px}
.calc .note{font-size:.85rem;color:var(--ink-2);margin-bottom:18px}
.fields{display:grid;grid-template-columns:1fr;gap:12px}
.field{display:flex;flex-direction:column;gap:5px;min-width:0}
.field label{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2)}
.field input,.field select,.form input,.form select,.form textarea{font:inherit;font-size:1rem;padding:9px 11px;border:1px solid var(--line);background:var(--bg);color:var(--ink);width:100%;min-width:0;border-radius:0}
.out{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.out div{border-top:2px solid var(--src);padding-top:8px}
.out b{display:block;font-family:var(--f-display);font-size:2rem;font-weight:600;line-height:1;font-variant-numeric:tabular-nums}
.out span{font-size:.8rem;color:var(--ink-2)}
.formula{font-family:var(--f-mono);font-size:.78rem;color:var(--ink-2);margin-top:14px}

/* deliverables + tools */
.list2{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:36px}
@media (max-width:760px){.list2{grid-template-columns:1fr}}
.check{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-direction:column}
.check li{padding:12px 0;border-top:1px solid var(--line);display:flex;gap:12px;align-items:baseline;font-size:.95rem}
.check li::before{content:"";flex:0 0 8px;height:8px;background:var(--rcv);border-radius:50%;position:relative;top:-2px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chips span{font-family:var(--f-mono);font-size:.8rem;border:1px solid var(--line);padding:5px 10px}

/* packages */
.pk{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.pk>div{border:1px solid var(--line);padding:26px 24px;display:flex;flex-direction:column;gap:12px;min-width:0}
.pk>div.hi{border:2px solid var(--src)}
.pk .t{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2)}
.pk h3{font-size:1.7rem}
.pk .dur{font-family:var(--f-mono);font-size:.85rem;color:var(--src)}
.pk ul{margin:0;padding-left:1.1em;color:var(--ink-2);font-size:.9rem;flex:1}
@media (max-width:860px){.pk{grid-template-columns:1fr}}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:36px}
@media (max-width:820px){.contact{grid-template-columns:1fr}}
.form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form .full{grid-column:1/-1}
.form textarea{min-height:120px;resize:vertical}
.info{display:flex;flex-direction:column;gap:18px}
.info dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:8px 18px;font-size:.95rem}
.info dt{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);padding-top:4px}
.info dd{margin:0;user-select:all}
.info .copy{font:inherit;font-size:.78rem;font-family:var(--f-mono);border:1px solid var(--line);background:var(--bg);color:var(--ink);padding:2px 8px;margin-left:8px;cursor:pointer}
.sent{border:1px solid var(--rcv);padding:16px;font-size:.95rem}
footer{border-top:1px solid var(--line);padding-block:28px;font-size:.82rem;color:var(--ink-2)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* publications */
.pubbar{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:28px;margin-bottom:14px}
.seg{display:inline-flex;border:1px solid var(--line)}
.seg button{font:inherit;font-family:var(--f-mono);font-size:.76rem;letter-spacing:.06em;text-transform:uppercase;padding:7px 12px;background:var(--bg);color:var(--ink-2);border:0;border-left:1px solid var(--line);cursor:pointer}
.seg button:first-child{border-left:0}
.seg button.on{background:var(--ink);color:var(--bg)}
#pubq{font:inherit;font-size:.95rem;padding:7px 11px;border:1px solid var(--line);background:var(--bg);color:var(--ink);min-width:0;width:240px;max-width:100%;border-radius:0}
.count{font-family:var(--f-mono);font-size:.76rem;color:var(--ink-2);margin-left:auto}
.pub table{min-width:760px}
.pub th.sort{cursor:pointer;user-select:none;white-space:nowrap}
.pub th.sort::after{content:"";display:inline-block;width:0;height:0;margin-left:6px;border:4px solid transparent;border-top-color:var(--line);vertical-align:-1px}
.pub th.sort.asc::after{border-top-color:transparent;border-bottom-color:var(--ink);vertical-align:3px}
.pub th.sort.desc::after{border-top-color:var(--ink)}
.pub td.m{white-space:nowrap}
.role{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;padding:2px 8px;border:1px solid var(--line);white-space:nowrap}
.role.lead{border-color:var(--src);color:var(--src)}
.ext{text-decoration:none;color:var(--rcv);font-weight:600;margin-left:4px}
.pub tr[hidden]{display:none}

.quiet{padding-block:36px 44px;border-top:1px solid var(--line)}
.quiet .note{font-size:.85rem;color:var(--ink-2);margin-top:6px}
.quiet .pubbar{margin-top:16px;margin-bottom:10px}
.quiet .seg button{font-size:.7rem;padding:5px 10px}
.quiet #pubq{font-size:.85rem;padding:5px 9px;width:200px}
.quiet .pub table{font-size:.8rem;min-width:680px}
.quiet .pub th,.quiet .pub td{padding:7px 10px}
.quiet .role{font-size:.66rem;padding:1px 6px}

.faq details{border-top:1px solid var(--line);padding:12px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{font-family:var(--f-display);font-size:1.1rem;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::after{content:"+";color:var(--src);font-weight:600}
.faq details[open] summary::after{content:"–"}
.faq details p{margin-top:8px;color:var(--ink-2);font-size:.92rem}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}