/* DrillBrain UI v5 - field-first mobile interface */
:root{--db-blue:#0066cc;--db-soft:#f5f7fb;--db-card:#ffffff;--db-line:#dfe3e8;--db-text:#1d1d1f;--db-muted:#60646c}
body{background:var(--db-soft)}
.dbQuickBar{display:flex;gap:8px;align-items:center;padding:10px 16px;background:#fff;border-bottom:1px solid var(--db-line);position:relative;z-index:900}
.dbQuickBar .dbQuickIntro{margin-right:auto;min-width:180px}.dbQuickBar .dbQuickIntro b{display:block;font-size:14px}.dbQuickBar .dbQuickIntro span{display:block;font-size:11px;color:var(--db-muted);margin-top:2px}
.dbQuickBar button{min-height:42px;border:1px solid var(--db-line);border-radius:11px;background:#fff;color:var(--db-text);padding:9px 13px;font-weight:650}.dbQuickBar button.primary,.dbQuickBar button.active{background:var(--db-blue);color:#fff;border-color:var(--db-blue)}
.dbSectionPicker{display:none;margin:10px 14px 0}.dbSectionPicker label{display:block;font-size:11px;font-weight:700;color:var(--db-muted);margin-bottom:5px;text-transform:uppercase;letter-spacing:.04em}.dbSectionPicker select{width:100%;min-height:48px;border:1px solid var(--db-line);border-radius:12px;background:#fff;color:var(--db-text);font-size:16px;padding:0 12px}
.dbSectionLead{margin:0 0 12px;color:var(--db-muted);font-size:13px;line-height:1.5}
.dbModelGrid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:14px}
.dbModelPanel{border:1px solid var(--db-line);border-radius:14px;background:#fff;padding:14px;overflow:hidden}.dbModelPanel h3{margin:0 0 5px;font-size:17px}.dbModelPanel p{font-size:12px!important;line-height:1.5!important;color:var(--db-muted)!important;margin:0 0 10px!important}
.dbModelCanvas{width:100%;height:340px;display:block;background:linear-gradient(#f9fbfd,#eef4f8);border-radius:10px}.dbSectionSvg{width:100%;height:260px;display:block;background:#fbfcfe;border-radius:10px}
.dbModelLegend{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px;font-size:11px;color:var(--db-muted)}.dbModelLegend span{display:inline-flex;align-items:center;gap:5px}.dbModelLegend i{width:10px;height:10px;border-radius:50%;display:inline-block}
.dbModelTools{display:flex;gap:8px;flex-wrap:wrap;align-items:end;margin:10px 0}.dbModelTools label{display:grid;gap:5px;font-size:12px;color:var(--db-muted)}.dbModelTools select{min-height:42px;border:1px solid var(--db-line);border-radius:10px;background:#fff;padding:0 10px;font-size:15px}
.dbModelNote{padding:11px 12px;border-radius:12px;background:#fff8e8;border:1px solid #ead18f;color:#6d5300;font-size:12px;line-height:1.5}.dbModelEmpty{padding:28px;text-align:center;color:var(--db-muted);font-size:13px}
.dbBoreList{display:grid;gap:7px;margin-top:10px;max-height:300px;overflow:auto}
.dbBoreChip{display:grid;grid-template-columns:1fr auto;gap:8px;padding:9px 10px;border:1px solid var(--db-line);border-radius:10px;background:#fafbfc}.dbBoreChip b{font-size:13px}.dbBoreChip span{display:block;font-size:11px;color:var(--db-muted);margin-top:3px}.dbBoreChip em{font-style:normal;font-size:11px;text-align:right}
.dbStatusCard{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:10px 0 14px}.dbStatusCard>div{border:1px solid var(--db-line);border-radius:12px;background:#fff;padding:11px}.dbStatusCard b{display:block;font-size:20px;letter-spacing:-.02em}.dbStatusCard span{display:block;font-size:10px;color:var(--db-muted);margin-top:3px;line-height:1.3}
.dbBottomNav{display:none}#tabs button{font-weight:600}.cardHead span{font-weight:750}.fieldHeading h1{letter-spacing:-.03em}.fieldNav a{font-weight:600}.engTable th{position:sticky;top:0;z-index:1}
@media(min-width:821px){main{height:calc(100vh - 187px)}}
@media(max-width:820px){.dbQuickBar{position:sticky;top:0;z-index:850;padding:8px 10px;overflow-x:auto}.dbQuickBar .dbQuickIntro{display:none}.dbQuickBar button{flex:0 0 auto;min-height:40px;padding:8px 12px}.dbSectionPicker{display:block}#siteView>nav{display:none}.tabsBody{padding-top:10px}.mapPane{height:31vh;min-height:230px}.scoreRow{margin-top:2px}.siteTop{padding-top:16px}.dbModelGrid{grid-template-columns:1fr}.dbStatusCard{grid-template-columns:1fr 1fr}.dbModelCanvas{height:300px}.dbSectionSvg{height:230px}.engTableWrap{border-radius:10px}.fieldPanel{padding-bottom:92px}.dbBottomNav{position:fixed;display:grid;grid-template-columns:repeat(4,1fr);left:8px;right:8px;bottom:calc(8px + env(safe-area-inset-bottom));z-index:2500;background:#fffffff2;border:1px solid var(--db-line);box-shadow:0 10px 30px #0002;border-radius:16px;padding:5px;backdrop-filter:blur(18px)}.dbBottomNav button{border:0;background:transparent;color:var(--db-muted);min-height:46px;border-radius:11px;font-size:11px;font-weight:650;padding:5px}.dbBottomNav button.active,.dbBottomNav button:active{background:#eaf3ff;color:var(--db-blue)}.intelPane{padding-bottom:110px}}
@media(max-width:520px){header{height:54px}.brand b{font-size:19px}.toolbar{padding:7px 9px}.toolbar>#openFieldTools{display:none}.toolbar>.secondary{display:none}.mapPane{height:28vh;min-height:210px}.emptyState{min-height:280px;padding:24px 18px}.emptyState h1{font-size:27px}.projectBar{margin-top:2px}.scoreRow{grid-template-columns:repeat(3,1fr)}.score:last-child{grid-column:auto;border-top:0}.score{padding:11px 8px}.score strong{font-size:17px}.score span{font-size:10px}.dbModelCanvas{height:270px}.dbSectionSvg{height:220px}.dbModelPanel{padding:11px}.dbStatusCard{grid-template-columns:1fr 1fr}.dbStatusCard b{font-size:18px}.card,.heroCard{border-radius:14px}.fieldHeading h1{font-size:23px}.fieldNav{display:grid;grid-template-columns:1fr 1fr;gap:8px}.fieldNav a{text-align:center;padding:10px 8px;border-radius:11px}}

/* Site GPS shortcut — keep current-location access visible on phones. */
@media(max-width:520px){
 .toolbar>#locateBtn{display:flex!important;width:100%;min-height:44px;align-items:center;justify-content:center;gap:7px;border:1px solid #b9dcd7;background:#f8fffd;color:#0b7068;border-radius:12px;font-weight:750;box-shadow:0 4px 12px rgba(13,112,104,.08)}
 .toolbar>#locateBtn:active{background:#e8f7f4}
}