@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@600;700;800&display=swap');

:root{
  --bg:#071218;
  --sidebar:#081820;
  --panel:#0d2029;
  --panel2:#112934;
  --line:rgba(178,220,224,.12);
  --text:#eef8f6;
  --muted:#8fa7ab;
  --accent:#5be0c1;
  --accent2:#a3f1df;
  --danger:#ff8f8f;
  --warning:#f2c66d;
  --shadow:0 22px 70px rgba(0,0,0,.28);
}

*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:"DM Sans",system-ui,sans-serif}
button,input,select{font:inherit}
button{cursor:pointer}
.app-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.sidebar{
  background:linear-gradient(180deg,#081920,#07151b);
  border-right:1px solid var(--line);
  padding:24px 18px;
  display:flex;
  flex-direction:column;
  position:sticky;
  top:0;
  height:100vh;
}
.brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none;padding:4px 8px 22px}
.brand>span:last-child{display:flex;flex-direction:column}
.brand strong{font-family:"Manrope";font-size:1.3rem;letter-spacing:-.04em}
.brand small{font-size:.62rem;color:#6f8d91}
.brand-mark{display:grid;grid-template-columns:repeat(3,5px);align-items:end;gap:3px;width:24px;height:24px}
.brand-mark span{display:block;border-radius:4px;background:linear-gradient(180deg,var(--accent2),var(--accent))}
.brand-mark span:nth-child(1){height:10px}
.brand-mark span:nth-child(2){height:19px}
.brand-mark span:nth-child(3){height:14px}
.nav{display:grid;gap:6px}
.nav-item{
  width:100%;border:0;background:transparent;color:#88a0a4;border-radius:10px;
  padding:11px 12px;display:flex;gap:10px;align-items:center;text-align:left
}
.nav-item:hover,.nav-item.active{background:rgba(91,224,193,.08);color:#dff8f2}
.nav-item.active{box-shadow:inset 2px 0 0 var(--accent)}
.nav-icon{width:20px;text-align:center;color:var(--accent)}
.sidebar-footer{margin-top:auto;display:grid;gap:16px;color:#617f84;font-size:.72rem}
.privacy-note{border:1px solid var(--line);border-radius:12px;padding:12px;background:rgba(255,255,255,.02)}
.privacy-note strong{display:block;color:#afc7ca;font-size:.75rem}
.privacy-note span{display:block;margin-top:4px;line-height:1.45}
.main{min-width:0;padding:0 32px 60px}
.topbar{
  min-height:94px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;
  position:sticky;top:0;background:rgba(7,18,24,.88);backdrop-filter:blur(16px);z-index:10
}
.topbar h1{font-family:"Manrope";font-size:1.55rem;margin:0;letter-spacing:-.03em}
.topbar p{margin:4px 0 0;color:#779399;font-size:.8rem}
.top-actions{display:flex;gap:10px}
.button{
  border:0;border-radius:10px;min-height:40px;padding:0 16px;font-weight:700;font-size:.8rem
}
.button.primary{background:linear-gradient(135deg,var(--accent2),var(--accent));color:#052018}
.button.secondary{background:rgba(255,255,255,.035);border:1px solid var(--line);color:#d9e8e8}
.text-button{border:0;background:none;color:var(--accent);font-weight:700}
.view{display:none;padding-top:28px}
.view.active{display:block}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.kpi-card,.panel,.result-hero{
  border:1px solid var(--line);border-radius:16px;background:linear-gradient(145deg,rgba(15,38,48,.95),rgba(9,29,37,.9));box-shadow:var(--shadow)
}
.kpi-card{padding:20px}
.kpi-card span{display:block;color:#789398;font-size:.74rem}
.kpi-card strong{display:block;font-family:"Manrope";font-size:1.75rem;margin:8px 0 2px}
.kpi-card small{color:#58777c;font-size:.66rem}
.dashboard-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:14px;margin-top:14px}
.panel{padding:22px}
.panel-header{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:20px}
.panel-header.compact{margin-bottom:14px}
.panel-header h2,.result-hero h2,.placeholder-panel h2{font-family:"Manrope";margin:4px 0 0;font-size:1.2rem}
.panel-header p{color:#789398;font-size:.8rem;margin:5px 0 0}
.eyebrow{text-transform:uppercase;letter-spacing:.13em;color:var(--accent);font-size:.62rem;font-weight:700}
.empty-state{min-height:260px;display:grid;place-items:center;text-align:center;align-content:center;padding:30px;color:#729095}
.empty-state h3{color:#dbe8e8;margin:10px 0 3px}
.empty-state p{max-width:430px;margin:0 0 18px;font-size:.8rem}
.empty-icon{font-size:1.5rem;color:var(--accent)}
.insight-panel p,.placeholder-panel p,.insight-card p{color:#89a2a6;font-size:.85rem}
.formula-preview{display:grid;gap:8px;margin-top:22px}
.formula-preview div{border-top:1px solid var(--line);padding-top:10px;display:grid;gap:3px}
.formula-preview span{color:#708c91;font-size:.68rem}
.formula-preview b{font-size:.76rem}
.analysis-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(340px,.8fr);gap:16px;align-items:start}
.form-panel{padding:24px}
.form-section{padding:18px 0;border-top:1px solid var(--line)}
.form-section:first-of-type{border-top:0}
.form-section h3{font-family:"Manrope";font-size:.9rem;margin:0 0 13px}
.form-grid{display:grid;gap:12px;margin-top:12px}
.form-grid.two{grid-template-columns:repeat(2,1fr)}
label span{display:block;color:#88a2a7;font-size:.69rem;margin-bottom:6px}
input,select{
  width:100%;background:#091b23;border:1px solid rgba(160,210,216,.13);color:var(--text);
  border-radius:9px;min-height:42px;padding:0 11px;outline:none
}
input:focus,select:focus{border-color:rgba(91,224,193,.55);box-shadow:0 0 0 3px rgba(91,224,193,.08)}
.form-actions{display:flex;justify-content:flex-end;gap:10px;padding-top:12px}
.results-stack{display:grid;gap:12px;position:sticky;top:122px}
.result-hero{padding:22px;background:linear-gradient(155deg,rgba(19,63,64,.82),rgba(8,32,41,.96))}
.result-hero h2{margin-top:5px}
.result-main{margin:20px 0;padding:18px;border:1px solid rgba(96,225,196,.18);background:rgba(76,217,184,.06);border-radius:13px}
.result-main span{display:block;color:#80a6a3;font-size:.7rem}
.result-main strong{display:block;font-family:"Manrope";font-size:2.8rem;color:var(--accent2);margin-top:4px}
.result-secondary{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.result-secondary div{background:rgba(255,255,255,.025);border:1px solid var(--line);padding:12px;border-radius:10px}
.result-secondary span{display:block;color:#6f8e93;font-size:.65rem}
.result-secondary b{display:block;margin-top:3px}
.breakdown-list{display:grid;gap:9px}
.breakdown-item{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}
.breakdown-label{display:grid;gap:4px}
.breakdown-label>div{display:flex;justify-content:space-between;gap:10px;font-size:.69rem}
.breakdown-label span{color:#7d989d}
.breakdown-label b{color:#dce9e9}
.breakdown-bar{height:5px;background:#14313a;border-radius:10px;overflow:hidden}
.breakdown-bar i{display:block;height:100%;background:linear-gradient(90deg,#2fa88f,var(--accent));border-radius:10px}
.margin-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.margin-grid div{padding:10px;background:rgba(255,255,255,.02);border:1px solid var(--line);border-radius:9px}
.margin-grid span{display:block;color:#718d92;font-size:.61rem}
.margin-grid b{display:block;margin-top:3px;font-size:.86rem}
.saved-list{display:grid;gap:10px}
.saved-card{display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center;border:1px solid var(--line);background:rgba(255,255,255,.02);padding:15px;border-radius:12px}
.saved-card h3{margin:0;font-size:.9rem}
.saved-meta{color:#6f8d92;font-size:.67rem;margin-top:4px}
.saved-values{display:flex;gap:18px;margin-top:10px}
.saved-values div span{display:block;color:#68858a;font-size:.6rem}
.saved-values div b{font-size:.78rem}
.saved-actions{display:flex;gap:7px}
.icon-button{border:1px solid var(--line);background:#0a1d25;color:#b8ccce;border-radius:8px;min-height:34px;padding:0 10px;font-size:.7rem}
.icon-button.danger{color:#ffb0b0}
.placeholder-panel{min-height:420px;display:grid;align-content:start}
.preview-card{margin-top:22px;border:1px solid var(--line);border-radius:12px;padding:16px;background:rgba(255,255,255,.02)}
.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}
.preview-grid div{padding:12px;border-radius:9px;background:#091b23;border:1px solid var(--line)}
.preview-grid span{display:block;color:#718c91;font-size:.62rem}
.preview-grid b{display:block;margin-top:3px}
.report-note{border:1px solid var(--line);background:rgba(255,255,255,.02);border-radius:12px;padding:18px}
.report-note p{margin-bottom:0;color:#769297;font-size:.8rem}
.toast{
  position:fixed;right:24px;bottom:24px;background:#102a31;border:1px solid rgba(91,224,193,.22);color:#e5f5f2;
  padding:12px 15px;border-radius:10px;box-shadow:var(--shadow);font-size:.78rem;opacity:0;transform:translateY(12px);pointer-events:none;transition:.2s
}
.toast.show{opacity:1;transform:translateY(0)}
@media (max-width:1100px){
  .app-shell{grid-template-columns:220px 1fr}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .dashboard-grid,.analysis-layout{grid-template-columns:1fr}
  .results-stack{position:static}
}
@media (max-width:760px){
  .app-shell{display:block}
  .sidebar{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line)}
  .nav{grid-template-columns:repeat(2,1fr)}
  .sidebar-footer{display:none}
  .main{padding:0 14px 40px}
  .topbar{position:static}
  .top-actions{display:none}
  .kpi-grid,.form-grid.two,.margin-grid,.result-secondary,.preview-grid{grid-template-columns:1fr}
  .dashboard-grid{grid-template-columns:1fr}
  .saved-card{grid-template-columns:1fr}
  .saved-actions{justify-content:flex-start}
}