:root{--bg:#f4f7f8;--panel:#fff;--text:#15232b;--muted:#6c7b83;--line:#dce5e8;--accent:#0e6574;--accent2:#0a4d59;--red:#d92323;--gold:#f4c400;--blue:#dceef2;--shadow:0 16px 45px rgba(25,50,58,.08);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,input,select{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;display:grid;grid-template-columns:240px 1fr}.sidebar{background:#10242b;color:#fff;padding:26px 18px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:flex;gap:12px;align-items:center;margin-bottom:34px}.brand-mark{width:42px;height:42px;border-radius:12px;background:#d9eff3;color:#0d5966;display:grid;place-items:center;font-weight:800}.brand strong,.brand span{display:block}.brand span{font-size:12px;color:#9fb2b9;margin-top:2px}.sidebar nav{display:grid;gap:8px}.nav-btn{border:0;background:transparent;color:#b7c7cc;text-align:left;padding:12px 14px;border-radius:10px}.nav-btn:hover,.nav-btn.active{background:#193740;color:#fff}.sidebar-note{margin-top:auto;color:#83999f;font-size:12px;line-height:1.5}.main{padding:28px 34px 60px;min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:26px}.topbar h1{margin:0;font-size:28px}.topbar p{margin:6px 0 0;color:var(--muted)}.ghost-btn,.secondary-btn,.danger-btn,.text-btn{border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 14px}.primary-btn{border:0;background:var(--accent);color:#fff;border-radius:10px;padding:11px 16px;font-weight:700}.primary-btn:hover{background:var(--accent2)}.secondary-btn{font-weight:700}.danger-btn{color:#a32727}.text-btn{padding:7px 10px;color:var(--muted)}.view{display:none}.view.active{display:block}.hero-panel{background:linear-gradient(135deg,#eaf6f8,#fff);border:1px solid #d7e7ea;border-radius:24px;padding:38px;display:grid;grid-template-columns:1.4fr .8fr;gap:30px;box-shadow:var(--shadow)}.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:800}.hero-panel h2{font-size:42px;line-height:1.08;margin:10px 0 12px;max-width:760px}.hero-panel p{color:var(--muted);max-width:680px}.hero-actions{display:flex;gap:10px;margin-top:22px}.stat-grid{display:grid;gap:12px;align-content:center}.stat{padding:20px;border-radius:16px;background:rgba(255,255,255,.85);border:1px solid #dce9eb}.stat span{display:block;font-size:34px;font-weight:800}.stat small{color:var(--muted)}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}.info-grid article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.info-grid h3{margin:0 0 7px}.info-grid p{color:var(--muted);margin:0;line-height:1.55}.split-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(360px,.8fr);gap:24px;align-items:start}.form-card,.preview-card{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.form-card{padding:24px}.preview-card{padding:18px}.sticky{position:sticky;top:20px}.preview-label{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin-bottom:12px}.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.section-head>div{display:flex;align-items:center;gap:10px}.section-head h2{margin:0}.step{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#e9f4f6;color:var(--accent);font-weight:800;font-size:12px}fieldset{border:0;padding:0;margin:0 0 24px}legend{font-weight:800;font-size:15px;margin-bottom:14px}.field-grid{display:grid;gap:14px}.field-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.field-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}label{display:grid;gap:7px;font-size:13px;color:#43545c}.full{grid-column:1/-1}input,select,output{border:1px solid var(--line);border-radius:10px;background:#fbfcfc;min-height:42px;padding:10px 12px;color:var(--text)}output{display:flex;align-items:center;font-weight:800;background:#f3f8f9}.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.check-item{display:flex;align-items:center;gap:8px;border:1px solid var(--line);padding:10px 12px;border-radius:10px;background:#fff}.check-item input{min-height:auto}.check-item.disabled{opacity:.42}.form-actions{display:flex;justify-content:flex-end}.tank-entry-list{display:grid;gap:12px;margin:18px 0}.tank-entry{border:1px solid var(--line);border-radius:14px;padding:14px;background:#fbfcfc}.tank-entry-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.tank-entry-head strong{font-size:13px}.tank-entry-grid{display:grid;grid-template-columns:1fr 1fr 1.2fr;gap:10px}.metrics-row{margin-top:12px}.smart-card{border:1px solid #cddadd;border-radius:16px;overflow:hidden;background:#fff}.smart-card .drawing-wrap{background:#d9ebef;padding:10px}.smart-card svg{display:block;width:100%;height:auto}.card-body{padding:18px}.card-title{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.card-title h3{margin:0;font-size:20px}.badge{background:#eaf4f6;color:var(--accent);border-radius:999px;padding:6px 9px;font-size:11px;font-weight:800}.card-kv{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}.kv{border-top:1px solid var(--line);padding-top:9px}.kv small{display:block;color:var(--muted);margin-bottom:3px}.kv strong{font-size:14px}.saved-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.saved-item{position:relative}.saved-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:10px}.small-btn{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 10px;font-size:12px}.cards-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.cards-toolbar h2{margin:0}.cards-toolbar p{margin:4px 0 0;color:var(--muted)}.empty{padding:48px;border:1px dashed #b8c6ca;border-radius:16px;text-align:center;color:var(--muted)}.toast{position:fixed;right:24px;bottom:24px;background:#14292f;color:#fff;padding:11px 14px;border-radius:10px;opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}
@media(max-width:980px){.app-shell{grid-template-columns:1fr}.sidebar{position:static;height:auto;flex-direction:row;align-items:center;gap:18px}.sidebar nav{display:flex;overflow:auto}.sidebar-note{display:none}.brand{margin:0}.main{padding:22px}.split-layout{grid-template-columns:1fr}.sticky{position:static}.hero-panel{grid-template-columns:1fr}.info-grid,.saved-grid{grid-template-columns:1fr}}
@media(max-width:640px){.topbar{align-items:flex-start;flex-direction:column}.topbar h1{font-size:23px}.hero-panel{padding:24px}.hero-panel h2{font-size:32px}.field-grid.two,.field-grid.three,.tank-entry-grid,.card-kv{grid-template-columns:1fr}.check-grid{grid-template-columns:1fr}.sidebar{padding:16px;display:block}.sidebar nav{margin-top:14px}.brand span{display:none}.main{padding:16px}}
@media print{.sidebar,.topbar,.form-card,.preview-label,.cards-toolbar,.saved-actions,.toast{display:none!important}.app-shell{display:block}.main{padding:0}.view{display:none!important}.view.active{display:block!important}.split-layout{display:block}.preview-card{border:0;box-shadow:none;padding:0}.saved-grid{grid-template-columns:1fr}.smart-card{break-inside:avoid;margin-bottom:16px}}

.drawing-legend{background:#f0f6f8;padding:0 18px 16px;font-size:12px;color:#385263}.drawing-legend>div{display:flex;gap:12px;justify-content:space-between;padding:5px 0;border-top:1px solid #d4dfe5}.drawing-legend span{text-align:right}.drawing-wrap svg{display:block;width:100%;height:auto}@media print{.drawing-legend{break-inside:avoid;-webkit-print-color-adjust:exact;print-color-adjust:exact}}