*,*::before,*::after{box-sizing:border-box}
html{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0}
[hidden]{display:none!important}
img{max-width:100%}
/* Layout: sticky file bar + section nav; well header; ESP check ledger; trajectory views; completion schematics side by side; datasheet grid; survey table */
:root{
  --bg:#f3f5f4; --panel:#ffffff; --fg:#17201d; --muted:#5d6b66; --line:#d5dcd9; --soft:#e8edeb;
  --accent:#0f7a6c; --casing:#8a6d3b; --esp:#c2410c; --perf:#b91c1c;
  --ok:#15803d; --warn:#b45309; --bad:#b91c1c; --on-accent:#ffffff;
  --f-disp:"IBM Plex Sans Condensed","Arial Narrow",sans-serif;
  --f-body:"IBM Plex Sans",system-ui,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#101614; --panel:#18201d; --fg:#e4ebe8; --muted:#93a39d; --line:#2c3833; --soft:#212b27;
  --accent:#3cc2ad; --casing:#c9a568; --esp:#fb8a4c; --perf:#f87171; --ok:#4ade80; --warn:#fbbf24; --bad:#f87171; --on-accent:#0b1a17; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#101614; --panel:#18201d; --fg:#e4ebe8; --muted:#93a39d; --line:#2c3833; --soft:#212b27;
  --accent:#3cc2ad; --casing:#c9a568; --esp:#fb8a4c; --perf:#f87171; --ok:#4ade80; --warn:#fbbf24; --bad:#f87171; --on-accent:#0b1a17; color-scheme:dark}
body{background:var(--bg);color:var(--fg);font-family:var(--f-body);font-size:14px;line-height:1.5}
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--panel);border-bottom:1px solid var(--line)}
.bar .in{max-width:1200px;margin:0 auto;padding-inline:16px;padding-block:8px;display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center}
.brand{font-family:var(--f-disp);font-weight:600;font-size:16px;letter-spacing:.02em}
.file{display:flex;align-items:center;gap:8px;min-width:0;flex:1}
.file .nm{font-family:var(--f-mono);font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.btn{font:inherit;font-weight:500;color:var(--on-accent);background:var(--accent);border:0;border-radius:5px;padding:6px 14px;cursor:pointer}
.btn.ghost{background:transparent;color:var(--fg);border:1px solid var(--line)}
.btn:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
nav.sec{display:flex;gap:4px;overflow-x:auto;max-width:100%}
nav.sec a{color:var(--muted);text-decoration:none;font-size:12.5px;padding:4px 8px;border-radius:4px;white-space:nowrap}
nav.sec a:hover{background:var(--soft);color:var(--fg)}
.wrap{max-width:1200px;margin:0 auto;padding-inline:16px;padding-block:16px 48px;display:grid;gap:18px}
.drop{border:1.5px dashed var(--line);border-radius:8px;padding:14px 16px;display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;justify-content:space-between;color:var(--muted);background:var(--panel)}
.drop b{color:var(--fg);font-weight:500}
.drop.sample{border-color:var(--accent)}
.err{color:var(--bad);font-weight:500}
#overlay{position:fixed;inset:0;z-index:20;background:color-mix(in srgb,var(--bg) 82%,transparent);display:grid;place-items:center;pointer-events:none}
#overlay div{border:2px dashed var(--accent);border-radius:12px;padding:40px 48px;font-family:var(--f-disp);font-size:22px;color:var(--accent);background:var(--panel)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font-size:12px;border:1px solid var(--line);border-radius:20px;padding:2px 10px;background:var(--panel);color:var(--muted)}
.chip b{color:var(--fg);font-weight:500}
.chip.off{opacity:.6}
header.well{display:grid;gap:10px}
h1{font-family:var(--f-disp);font-weight:600;font-size:30px;margin:0;line-height:1.15;text-wrap:balance}
.sub{color:var(--muted);margin:0}
.stats{display:flex;flex-wrap:wrap;gap:8px 26px}
.stats div{display:grid;min-width:0}
.stats span{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:10.5px}
.stats b{font-family:var(--f-mono);font-weight:500;font-size:15px;font-variant-numeric:tabular-nums}
h2{font-family:var(--f-disp);font-weight:600;font-size:19px;margin:0 0 2px;scroll-margin-top:110px}
.h2note{color:var(--muted);font-size:12.5px;margin:0 0 10px;max-width:75ch}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:12px;min-width:0}
.panel h3{font-family:var(--f-disp);font-weight:500;font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 0 6px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:820px){.row{grid-template-columns:1fr}}
.tbl{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:13px}
th,td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:500;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.05em;white-space:nowrap}
td.n,th.n{font-family:var(--f-mono);font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap}
.pill{display:inline-block;font-size:11px;font-weight:600;border-radius:3px;padding:0 6px;margin-left:6px;vertical-align:1px;white-space:nowrap}
.pill.ok{color:var(--ok);background:color-mix(in srgb,var(--ok) 14%,transparent)}
.pill.warn{color:var(--warn);background:color-mix(in srgb,var(--warn) 16%,transparent)}
.pill.bad{color:var(--bad);background:color-mix(in srgb,var(--bad) 14%,transparent)}
.find{margin:0;padding:0;list-style:none;display:grid;gap:6px}
.find li{padding:8px 10px 8px 12px;border-left:3px solid var(--line);background:var(--soft);border-radius:0 4px 4px 0;max-width:95ch}
.find li.warn{border-color:var(--warn)} .find li.bad{border-color:var(--bad)} .find li.ok{border-color:var(--ok)}
.params{display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;font-size:12.5px;color:var(--muted);margin-top:10px}
.params input{width:64px;font:inherit;font-family:var(--f-mono);color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:2px 6px}
#p3dwrap{position:relative;height:600px}
#p3d{width:100%;height:100%;display:block;touch-action:none;cursor:grab}
#p3d:active{cursor:grabbing}
#tip{position:absolute;pointer-events:none;background:var(--fg);color:var(--bg);font-family:var(--f-mono);font-size:11.5px;padding:6px 8px;border-radius:4px;white-space:nowrap;z-index:2}
.ctl{position:absolute;right:6px;top:2px;display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:12px;color:var(--muted);justify-content:flex-end}
.ctl select{font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:3px 4px;max-width:210px}
#lgd{position:absolute;left:6px;top:2px;display:grid;gap:2px;font-size:11.5px;color:var(--muted)}
#lgd i{display:inline-block;width:14px;height:4px;border-radius:2px;margin-right:6px;vertical-align:middle}
@media (max-width:820px){#p3dwrap{height:500px}.ctl{top:auto;bottom:4px}}
.plot svg{width:100%;height:auto;display:block;font-family:var(--f-mono);font-size:10.5px}
.comps{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:16px}
.schem svg{width:100%;height:auto;display:block;font-family:var(--f-body);font-size:11.5px}
.diff{margin-top:10px}
.ds{columns:2 360px;column-gap:16px}
.ds section{break-inside:avoid;margin-bottom:14px}
.ds h4{font-family:var(--f-disp);font-weight:500;font-size:13px;margin:0 0 4px;display:flex;gap:8px;align-items:baseline}
.ds h4 small{font-family:var(--f-body);font-weight:400;color:var(--warn);font-size:11.5px}
.ds dl{margin:0;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);border-top:1px solid var(--line)}
.ds dt,.ds dd{margin:0;padding:5px 4px;border-bottom:1px solid var(--line);font-size:13px;min-width:0;overflow-wrap:anywhere}
.ds dt{color:var(--muted)}
.ds dd{font-family:var(--f-mono);font-size:12.5px}
.ds dd.empty{color:var(--muted);font-family:var(--f-body);font-style:italic;opacity:.7}
details summary{cursor:pointer;font-weight:500}
.muted{color:var(--muted)}
.empty-state{color:var(--muted);padding:24px;text-align:center}
@media (prefers-reduced-motion: reduce){*{scroll-behavior:auto!important}}
html{scroll-behavior:smooth}
.intro{display:grid;gap:10px;max-width:70ch}
.intro h1{font-size:26px}
.intro p{margin:0;color:var(--muted)}
.intro .acts{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
#content{display:grid;gap:18px}
footer{max-width:1200px;margin:0 auto;padding-inline:16px;padding-block:0 32px;color:var(--muted);font-size:12px;line-height:1.7}
footer a{color:var(--esp)}
.donate{display:inline-flex;align-items:center;gap:6px;margin-left:auto;font-size:12.5px;font-weight:500;color:var(--esp);text-decoration:none;border:1px solid color-mix(in srgb,var(--esp) 40%,transparent);border-radius:20px;padding:3px 11px;white-space:nowrap}
.donate:hover{background:color-mix(in srgb,var(--esp) 10%,transparent)}
.donate:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media print{.donate,.lang{display:none!important}}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:5px;overflow:hidden}
.lang button{font:inherit;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--muted);background:transparent;border:0;padding:4px 9px;cursor:pointer}
.lang button+button{border-left:1px solid var(--line)}
.lang button[aria-pressed="true"]{background:var(--fg);color:var(--bg)}
.lang button:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}

/* Printing is a desktop feature; the free web version prints a short notice instead */
@media print{
  html:not(.is-desktop) body>*{display:none!important}
  html:not(.is-desktop) body::before{display:block;padding:40mm 20mm;font:14pt/1.5 "IBM Plex Sans",sans-serif;color:#17201d;
    content:"Report printing is available in ESP Well Viewer Desktop for Windows."}
  html:not(.is-desktop):lang(id) body::before{content:"Cetak report tersedia di ESP Well Viewer Desktop untuk Windows."}
}
.pro-teaser{display:grid;gap:8px;border-style:dashed;max-width:80ch}
.pro-teaser h3{font-family:var(--f-disp);font-weight:600;font-size:15px;color:var(--fg);text-transform:none;letter-spacing:0;margin:0}
.pro-teaser p{margin:0;color:var(--muted)}
.pro-teaser ul{margin:0;padding-left:18px;color:var(--fg)}
.pro-tag{display:inline-block;font-size:10.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--on-accent);background:var(--accent);border-radius:3px;padding:1px 6px;margin-left:8px;vertical-align:2px}

/* "Desktop version" button and download dialog (web only) */
.getdesk{font:inherit;font-size:12.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;cursor:pointer;white-space:nowrap;
  color:var(--on-accent);background:var(--accent);border:0;border-radius:20px;padding:4px 12px;margin-left:auto}
.getdesk:hover{filter:brightness(1.08)}
.getdesk:focus-visible,.linkbtn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.getdesk~.donate{margin-left:0}
.linkbtn{font:inherit;font-weight:600;color:var(--accent);background:none;border:0;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.intro-desk{font-size:13px;color:var(--fg)!important;background:var(--soft);border-radius:5px;padding:7px 10px}
#dldlg{position:fixed;inset:0;z-index:30;display:grid;place-items:center;padding:16px;overflow-y:auto;
  background:color-mix(in srgb,var(--bg) 70%,rgba(0,0,0,.45))}
.dlbox{width:min(640px,100%);background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:20px 22px;display:grid;gap:12px;box-shadow:0 18px 50px rgba(0,0,0,.25)}
.dlhead{display:flex;align-items:center;justify-content:space-between;gap:12px}
.dlhead h2{margin:0;font-size:21px}
.dlbox p{margin:0;max-width:65ch}
.dlcmp td,.dlcmp th{white-space:normal}
.dlcmp .c{text-align:center;width:90px}
.dlcmp .yes{color:var(--accent);font-size:13px}
.dlcmp .no{color:var(--muted)}
.dlacts{display:flex;flex-wrap:wrap;gap:8px}
.dlacts .btn{text-decoration:none;display:inline-block}
.dlnote{font-size:12.5px;color:var(--muted)}
.dlbuy{border-top:1px solid var(--line);padding-top:12px;display:grid;gap:8px}
.dlbuy h3{margin:0;font-family:var(--f-disp);font-size:15px}
.dlmail{display:flex;flex-wrap:wrap;align-items:center;gap:8px;background:var(--soft);border-radius:5px;padding:8px 10px}
.dlmail code{font-family:var(--f-mono);font-size:14px;user-select:all;margin-right:auto;overflow-wrap:anywhere}
.dlmail .btn{padding:3px 10px;font-size:12.5px;text-decoration:none}
.is-desktop .getdesk,.is-desktop .intro-desk,.is-desktop #dldlg{display:none!important}
@media print{.getdesk,#dldlg{display:none!important}}

/* data check panel */
.checks{display:grid;gap:6px;width:100%;border-top:1px solid var(--line);padding-top:10px;margin-top:4px}
.checks h3{margin:0;font-family:var(--f-disp);font-size:13px;font-weight:600;color:var(--fg);text-transform:uppercase;letter-spacing:.06em}
.checks ul{margin:0;padding:0;list-style:none;display:grid;gap:4px}
.checks li{font-size:13px;color:var(--fg);padding:4px 8px 4px 10px;border-left:3px solid var(--line);background:var(--soft);border-radius:0 4px 4px 0}
.checks li.warn{border-color:var(--warn)}
.checks .hint{margin:0;font-size:12.5px;color:var(--muted)}
.checks a,.intro a{color:var(--accent)}
#tpl{text-decoration:none;display:inline-block}
@media print{.checks{display:none!important}}
td.n.off{color:var(--warn);font-weight:600}