/* Longitude 103 company site (LONG-731) */

@font-face{font-family:'Public Sans';font-style:normal;font-weight:100 900;font-display:swap;src:url(../fonts/public-sans-latin-wght-normal.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-500-normal.woff2) format('woff2')}

/* ---------- tokens ---------- */
:root{
  --bg:#FBFAF6;--bg2:#F1EFE7;--ink:#14324F;--tx:#2B3A4A;--mut:#5F6B7B;--line:#E3DFD4;--ac:#2C7A55;--acx:#FFFFFF;--band:#14324F;--bandtx:#FBFAF6;
  --fbg:#E6DFCD;--road:#FBFAF6;--c1:#A9CC8E;--c2:#8DBD73;--c3:#C6DBA3;--c4:#D9CAA5;--ring:rgba(20,50,79,.14);--arm:#14324F;--water:#2A7FC4;--card:#FFFFFF;--hi:#2C7A55;
  --shadow:0 1px 2px rgba(20,50,79,.06),0 10px 30px rgba(20,50,79,.10);
  --sans:'Public Sans',system-ui,-apple-system,'Segoe UI',sans-serif;--mono:'IBM Plex Mono',ui-monospace,Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0F1613;--bg2:#151F1A;--ink:#EEF3EE;--tx:#C8D2CB;--mut:#8E9B93;--line:#25322B;--ac:#5CC08C;--acx:#0F1613;--band:#151F1A;--bandtx:#EEF3EE;
    --fbg:#16201B;--road:#1F2B24;--c1:#264832;--c2:#2D573A;--c3:#203A29;--c4:#2D2A21;--ring:rgba(238,243,238,.10);--arm:#EEF3EE;--water:#4FA3F0;--card:#151F1A;--hi:#5CC08C;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px rgba(0,0,0,.35);color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0F1613;--bg2:#151F1A;--ink:#EEF3EE;--tx:#C8D2CB;--mut:#8E9B93;--line:#25322B;--ac:#5CC08C;--acx:#0F1613;--band:#151F1A;--bandtx:#EEF3EE;
  --fbg:#16201B;--road:#1F2B24;--c1:#264832;--c2:#2D573A;--c3:#203A29;--c4:#2D2A21;--ring:rgba(238,243,238,.10);--arm:#EEF3EE;--water:#4FA3F0;--card:#151F1A;--hi:#5CC08C;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px rgba(0,0,0,.35);color-scheme:dark;
}

/* ---------- base ---------- */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--tx);font-family:var(--sans);-webkit-font-smoothing:antialiased;line-height:1.5}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
:focus-visible{outline:2px solid var(--ac);outline-offset:3px;border-radius:4px}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--bg);padding:8px 12px;border-radius:6px;z-index:10}
.skip:focus{left:8px}

/* light/dark logo swap: dark assets show when the dark tokens are active */
.on-dark{display:none}
:root[data-theme="dark"] .on-light{display:none}
:root[data-theme="dark"] .on-dark{display:block}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .on-light{display:none}
  :root:not([data-theme="light"]) .on-dark{display:block}
}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.scrolled{border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:76px}
.nav .logo{margin-right:auto}
.nav .logo img{height:18px;width:auto}
.nav ul{display:flex;gap:26px;list-style:none;font-size:15px}
.nav ul a:hover{color:var(--ac)}
.icon-btn{appearance:none;background:none;cursor:pointer;width:38px;height:38px;display:grid;place-items:center;border-radius:999px;border:1px solid var(--line);color:var(--tx)}
.icon-btn:hover{background:var(--bg2)}
.icon-btn svg{width:18px;height:18px}
.theme-toggle .moon{display:none}
:root[data-theme="dark"] .theme-toggle .moon{display:block}
:root[data-theme="dark"] .theme-toggle .sun{display:none}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .theme-toggle .moon{display:block}
  :root:not([data-theme="light"]) .theme-toggle .sun{display:none}
}
.menu-toggle{display:none}

.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:999px;font-weight:600;font-size:15px;border:1px solid var(--line);color:var(--ink);background:var(--card);transition:filter .15s,background .15s}
.btn:hover{background:var(--bg2)}
.btn.primary{background:var(--ac);border-color:var(--ac);color:var(--acx)}
.btn.primary:hover{filter:brightness(1.08)}

/* ---------- hero ---------- */
.hero{text-align:center;padding:80px 0 0}
h1{margin:0 auto;font-size:clamp(36px,4.8vw,60px);line-height:1.06;letter-spacing:-.03em;color:var(--ink);font-weight:700;max-width:900px}
.lede{margin:22px auto 0;font-size:18.5px;line-height:1.6;max-width:680px}
.ctas{margin-top:32px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.pano{position:relative;margin-top:56px}
.pano svg{display:block;width:100%;height:auto}
.pano::before{content:'';position:absolute;inset:0 0 auto 0;height:90px;background:linear-gradient(var(--bg),transparent);pointer-events:none;z-index:1}

.stats{background:var(--band);color:var(--bandtx)}
:root[data-theme="dark"] .stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}}
.stats ul{display:grid;grid-template-columns:repeat(4,1fr);list-style:none}
.stats li{padding:26px 0;font-size:14px}
.stats b{display:block;font-size:24px;font-weight:700;letter-spacing:-.01em;margin-bottom:2px}

/* ---------- sections ---------- */
section{padding:96px 0;scroll-margin-top:76px}
section.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.center{text-align:center}
h2{font-size:clamp(28px,3.2vw,40px);letter-spacing:-.025em;line-height:1.12;color:var(--ink);font-weight:700}
.sub{margin-top:14px;font-size:17.5px;line-height:1.6;color:var(--mut);max-width:660px}
.center h2,.center .sub{margin-left:auto;margin-right:auto}

.cards{margin-top:48px;display:grid;grid-template-columns:1.35fr 1fr;grid-template-rows:auto auto;gap:24px;text-align:left;list-style:none}
.card.lead{grid-row:1/3}
.card.lead .thumb{aspect-ratio:auto;flex:1;min-height:300px}
.card.lead p{font-size:17px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:32px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow)}
.card h3{height:30px;display:flex;align-items:center}
.card .prod-logo{height:30px;width:auto}
.card .ai-name{display:flex;align-items:center;gap:8px;font-weight:700;font-size:20px;color:var(--ink)}
.card .ai-name span{font:500 11px var(--mono);color:var(--ac);border:1px solid var(--ac);border-radius:999px;padding:2px 8px}
.card p{font-size:16px;line-height:1.6;color:var(--tx)}
.thumb{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10;background:var(--bg2)}
.thumb > img{width:100%;height:100%;object-fit:cover;object-position:top left}
.thumb .mini{position:absolute;right:10px;bottom:-34px;width:31%;border-radius:12px;border:3px solid var(--card);box-shadow:var(--shadow);background:var(--card)}
.thumb.code{padding:18px;font:400 12.5px/1.8 var(--mono);white-space:pre-wrap;overflow:hidden;margin:0;background:#0F1A16;color:#C8D2CB;border-color:#0F1A16;aspect-ratio:auto}
.thumb.code .t{color:#7BD3A2}.thumb.code .q{color:#FFFFFF;font-weight:500}
.more{margin-top:auto;font-weight:600;color:var(--ac)}
.more:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- mobile apps ---------- */
.apps{margin-top:56px;display:grid;grid-template-columns:1fr 1fr;gap:28px;text-align:left}
.app{display:grid;grid-template-columns:250px 1fr;gap:36px;align-items:center}
.app .phone{order:-1}
.app h3{font-size:22px;color:var(--ink);letter-spacing:-.01em}
.app .who{font:500 11px var(--mono);color:var(--mut);letter-spacing:.06em;text-transform:uppercase}
.app p{margin-top:12px;font-size:16.5px;line-height:1.6}
.app ul.checks{margin-top:16px}
.phone{border:7px solid #1B2A24;border-radius:34px;overflow:hidden;background:#1B2A24;aspect-ratio:460/1000;box-shadow:var(--shadow)}
:root[data-theme="dark"] .phone{border-color:#2B3A33;background:#2B3A33}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .phone{border-color:#2B3A33;background:#2B3A33}}
.phone img{width:100%;height:100%;object-fit:cover;border-radius:27px}
.checks{list-style:none;display:grid;gap:9px;font-size:14.5px}
.checks li{display:flex;gap:10px}
.checks li::before{content:'';flex:none;width:16px;height:16px;margin-top:3px;border-radius:50%;background:var(--ac) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.2 2.2 4.8-4.8' fill='none' stroke='white' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat}

/* ---------- water balance ---------- */
.band-dark{background:#14324F;--bg:#14324F;--bg2:#1A3B5C;--ink:#F4F6F2;--tx:#D5DEE8;--mut:#A9B8C9;--line:#2D4B6B;--card:#183A5C;--ac:#7BD3A2;--hi:#7BD3A2;--c1:#3E6B52;--water:#6CB6F0;--shadow:none;color:var(--tx)}
:root[data-theme="dark"] .band-dark{background:#0B1F17;--bg:#0B1F17;--bg2:#12291F;--card:#12291F;--line:#22392E}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .band-dark{background:#0B1F17;--bg:#0B1F17;--bg2:#12291F;--card:#12291F;--line:#22392E}}
.wb-grid{margin-top:44px;display:grid;grid-template-columns:1fr;gap:20px}
.wb{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow);margin:0}
.wb svg{width:100%;height:auto;display:block}
.ledger{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px 28px;display:grid;grid-template-columns:auto 1fr;gap:8px 40px;align-items:center;box-shadow:var(--shadow)}
.ledger h3{font-size:16px;color:var(--ink);grid-row:1/3}
.ledger dl{display:grid;grid-template-columns:repeat(4,auto);grid-auto-flow:column;grid-template-rows:auto auto;column-gap:40px;justify-content:start}
.ledger dt,.ledger dd{padding:2px 0;font-size:14px}
.ledger dt{color:var(--mut)}
.ledger dd{font-family:var(--mono);color:var(--ink);font-size:18px}
.ledger .tot{font-weight:600}
.meter{grid-column:2;margin-top:8px;height:10px;border-radius:999px;background:var(--bg2);overflow:hidden}
.meter i{display:block;height:100%;width:89%;background:var(--ac);border-radius:999px}
.ledger small{grid-column:2;color:var(--mut);font-size:12.5px}

/* ---------- who we serve ---------- */
.serve{margin-top:48px;display:grid;grid-template-columns:repeat(4,1fr);gap:0;text-align:left;list-style:none;border-top:2px solid var(--ink)}
.serve li{padding:24px 24px 8px 0}
.serve li+li{padding-left:24px;border-left:1px solid var(--line)}
.serve svg{width:32px;height:32px;color:var(--ac)}
.serve h3{margin-top:14px;font-size:17px;color:var(--ink)}
.serve p{margin-top:8px;font-size:15.5px;line-height:1.55;color:var(--tx)}
.states{margin-top:28px;font-size:15.5px;color:var(--mut)}
.states b{color:var(--ink);font-weight:600}

/* ---------- contact + footer ---------- */
.cta{background:var(--band);color:var(--bandtx);border-radius:22px;padding:48px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
:root[data-theme="dark"] .cta{border:1px solid var(--line)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .cta{border:1px solid var(--line)}}
.cta h2{color:var(--bandtx)}
.cta p{margin-top:10px;opacity:.85}
.cta .btn{background:var(--bandtx);color:var(--band);border-color:var(--bandtx)}
.cta .btn:hover{filter:brightness(.95)}

.site-footer{border-top:1px solid var(--line);padding:48px 0 40px;font-size:14px;color:var(--mut)}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.site-footer h2{font-size:13px;color:var(--ink);margin-bottom:12px;letter-spacing:0}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:8px}
.site-footer a:hover{color:var(--ac)}
.site-footer img{height:16px;width:auto;margin-bottom:16px}
.site-footer address{font-style:normal;line-height:1.7}
.legal{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);font-size:13px}

/* ---------- SVG: field view ---------- */
.f-bg{fill:var(--fbg)}
.f-road{stroke:var(--road);stroke-width:5;fill:none}
.f-c1{fill:var(--c1)}.f-c2{fill:var(--c2)}.f-c3{fill:var(--c3)}.f-c4{fill:var(--c4)}
.f-ring{fill:none;stroke:var(--ring);stroke-width:1}
.f-edge{fill:none;stroke:var(--ring);stroke-width:1.2}
.f-arm{stroke:var(--arm);stroke-width:2;stroke-linecap:round;opacity:.7}
.f-armg{animation:spin 48s linear infinite;transform-box:view-box}
.f-hatch{stroke:var(--ring);stroke-width:1}
.f-case{stroke:var(--fbg);stroke-width:10;fill:none;stroke-linecap:round}
.f-canal{stroke:var(--water);stroke-width:4;fill:none;stroke-linecap:round}
.f-lat{stroke:var(--water);stroke-width:2;fill:none;opacity:.8}
.f-to{fill:var(--card);stroke:var(--water);stroke-width:2}
.f-well{fill:var(--card);stroke:var(--arm);stroke-width:1.5}
.f-lbl{font:500 10px var(--mono);fill:var(--mut);letter-spacing:.04em}
.f-hil{fill:none;stroke:var(--hi);stroke-width:2.5}
.f-pin{fill:var(--hi)}
.f-pinh{fill:var(--card)}
.f-card{fill:var(--card);stroke:var(--line)}
.f-t1{font:500 10px var(--mono);fill:var(--mut);letter-spacing:.06em}
.f-t2{font:600 15px var(--sans);fill:var(--ink)}
.f-t3{font:500 11px var(--mono);fill:var(--tx)}
.f-barbg{fill:var(--bg2)}.f-bar{fill:var(--hi)}
.f-chrome{fill:var(--card);stroke:var(--line)}
.f-lead{stroke:var(--hi);stroke-width:1.2;stroke-dasharray:3 3}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- SVG: water balance ---------- */
.wb-node{fill:var(--card);stroke:var(--line);stroke-width:1.2}
.wb-node.key{stroke:var(--hi);stroke-width:1.6}
.wb-crop{fill:var(--c1);stroke:var(--hi);stroke-width:1.6;fill-opacity:.55}
.wb-h{font:600 15.5px var(--sans);fill:var(--ink)}
.wb-v{font:500 22px var(--mono);fill:var(--ink)}
.wb-s{font:400 12px var(--mono);fill:var(--mut)}
.wb-tag{font:500 10.5px var(--mono);fill:var(--mut);letter-spacing:.08em}
.wb-pipe{fill:none;stroke:var(--line);stroke-width:6;stroke-linecap:round}
.wb-flow{fill:none;stroke:var(--water);stroke-width:2.2;stroke-dasharray:5 7;animation:flow 1.1s linear infinite;stroke-linecap:round}
.wb-flow.out{stroke:var(--hi)}
.wb-flow.rain{stroke:var(--mut)}
.wb-ico{fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.wb-icof{fill:var(--water)}
.wb-leaf{fill:var(--hi);fill-opacity:.25;stroke:var(--hi);stroke-width:1.6;stroke-linejoin:round}
.wb-stalk{stroke:var(--hi);stroke-width:2.4;stroke-linecap:round;fill:none}
@keyframes flow{to{stroke-dashoffset:-12}}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .f-armg,.wb-flow{animation:none}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .f-armg,.wb-flow{animation:none}
}

/* ---------- small screens ---------- */
@media (max-width:1000px){
  .cards{grid-template-columns:1fr}
  .card.lead{grid-row:auto}
  .card.lead .thumb{flex:none;aspect-ratio:4/3;min-height:0}
  .apps{grid-template-columns:1fr}
  .ledger{grid-template-columns:1fr}
  .ledger h3{grid-row:auto}
  .ledger dl{grid-template-columns:1fr auto;grid-auto-flow:row;grid-template-rows:none}
  .ledger dd{text-align:right}
  .meter,.ledger small{grid-column:1}
  .serve{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .wrap{padding:0 16px}
  .nav{gap:10px;height:64px}
  .nav .cta-btn{display:none}
  .menu-toggle{display:grid}
  .nav ul{display:none;position:absolute;left:0;right:0;top:64px;flex-direction:column;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:8px 16px 16px}
  .nav ul a{display:block;padding:12px 0;border-bottom:1px solid var(--line)}
  .nav.open ul{display:flex}
  .hero{padding-top:40px}
  .pano{margin-top:40px;overflow-x:hidden}
  .pano svg{width:180%;margin-left:-40%}
  .stats ul{grid-template-columns:1fr 1fr}
  section{padding:64px 0}
  .app{grid-template-columns:1fr;gap:24px}
  .app .phone{order:2}
  .phone{width:230px;justify-self:center}
  .serve li,.serve li+li{padding:20px 16px 8px 0;border-left:0}
    .cta{padding:28px}
  .site-footer .cols{grid-template-columns:1fr 1fr}
  .wb{padding:12px;overflow-x:auto}
  .wb svg{min-width:760px}
}
@media (max-width:520px){
  .serve{grid-template-columns:1fr}
  .site-footer .cols{grid-template-columns:1fr}
}