/* ReliToolbox v0.1 — Unified theme (ChemCalc style)
   Light page background · dark header · teal accent · orange CTA · deep-blue primary */

*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#f8fafc;--card:#ffffff;--card-alt:#f1f5f9;--hover:#f1f5f9;
  --border:#e5e7eb;--border-strong:#d1d5db;
  --text:#0f172a;--sec:#475569;--muted:#94a3b8;
  --teal:#0d9488;--teal-ink:#115e59;--teal-soft:#ccfbf1;
  --pri:#1d4ed8;--prid:#1e40af;--blue:#2563eb;--cyan:#0891b2;
  --amber:#d97706;--purple:#7c3aed;--indigo:#4f46e5;
  --success:#10b981;--warn:#f59e0b;--danger:#ef4444;
  --r:10px;--rs:6px;--rp:20px;
}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'PingFang SC','Noto Sans SC',sans-serif;
  font-size:15px;color:var(--text);background:var(--bg);min-height:100vh;line-height:1.55;-webkit-font-smoothing:antialiased}

/* Header (dark, compact — ChemCalc style) */
.hdr,header{background:linear-gradient(135deg,#0f172a 0%,#1a2e4a 60%,#0f172a 100%);
  color:#fff;padding:14px 16px 12px;border-bottom:1px solid #0f172a}
.hdr h1,header h1{font-size:22px;font-weight:800;letter-spacing:-.5px;margin:0;color:#fff}
.hdr .sub,header .sub{font-size:12px;color:rgba(255,255,255,.78);margin:4px 0 10px;opacity:1}
.hdr .bc,header .bc{font-size:11px;color:rgba(255,255,255,.6);margin-bottom:4px}
.hdr a,header a{color:rgba(255,255,255,.85);text-decoration:none}
.hdr a:hover,header a:hover{color:#fff;text-decoration:underline}
.hdr a:visited,header a:visited{color:rgba(255,255,255,.85)}

/* Language pill (shared) */
.lb,.lang-bar,.hdr-row{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.lbtn,.lbtn2,.hbtn{padding:4px 12px;border-radius:16px;
  border:1px solid rgba(255,255,255,.35);background:transparent;
  color:rgba(255,255,255,.82);font-size:11px;font-weight:600;cursor:pointer;
  font-family:inherit;text-decoration:none;transition:all .15s}
.lbtn:hover,.lbtn2:hover,.hbtn:hover{color:#fff;border-color:rgba(255,255,255,.6)}
.lbtn.on,.lbtn2.on,.hbtn.on,.lbtn.active,.lbtn2.active{
  background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.7);color:#fff}

/* Layout */
.ctn,.container,.wrap{max-width:900px;margin:0 auto;padding:14px 14px 56px}
.g2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.g3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}
.gkpi{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:8px}
.gauto{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}
@media(max-width:640px){.g3,.g4{grid-template-columns:1fr 1fr}}
@media(max-width:380px){.g2,.g3,.g4{grid-template-columns:1fr}}

/* Card */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--r);
  padding:14px;margin-bottom:10px;box-shadow:0 1px 3px rgba(15,23,42,.04)}
.ct,.title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:10px}
.sl{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;
  color:var(--muted);margin-bottom:8px}

/* Module-home grid */
.mgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;margin-top:8px}
.mc{background:var(--card);border:1px solid var(--border);border-radius:var(--r);
  padding:14px 12px;position:relative;cursor:pointer;
  box-shadow:0 1px 3px rgba(15,23,42,.04);transition:all .15s;text-decoration:none;color:inherit;display:block}
.mc:hover{border-color:var(--teal);transform:translateY(-1px);box-shadow:0 4px 14px rgba(13,148,136,.15)}
.mc.sn{opacity:.5;cursor:default;transform:none}
.mc.sn:hover{border-color:var(--border);box-shadow:0 1px 3px rgba(15,23,42,.04);transform:none}
.mi{font-size:24px;margin-bottom:6px}
.mn{font-size:14px;font-weight:700;color:var(--text)}
.mz{font-size:12px;color:var(--sec);margin-top:3px;line-height:1.4}
.md{font-size:11px;color:var(--muted);margin-top:4px;line-height:1.4}
.mbg{position:absolute;top:9px;right:9px;font-size:10px;padding:2px 7px;border-radius:8px;font-weight:700}
.bl,.b-live{background:var(--teal-soft);color:var(--teal-ink);border:1px solid #99f6e4}
.bs,.b-soon{background:#fef3c7;color:#92400e;border:1px solid #fde68a}
.b-new{background:#dbeafe;color:#1e40af;border:1px solid #bfdbfe}

/* Forms */
label.lbl,.lbl{font-size:11px;color:var(--sec);display:block;margin-bottom:3px;font-weight:500}
input,select,textarea{width:100%;padding:7px 10px;border-radius:var(--rs);
  border:1px solid var(--border);background:#fff;color:var(--text);
  font-size:13px;font-family:monospace;outline:none;transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(13,148,136,.15)}
select{font-family:inherit;cursor:pointer}
textarea{resize:vertical;line-height:1.5}

/* Buttons */
.btn{padding:7px 14px;border-radius:var(--rp);border:1px solid var(--border);
  background:#fff;color:var(--sec);font-size:12px;font-weight:600;
  cursor:pointer;white-space:nowrap;font-family:inherit;transition:all .15s;text-decoration:none;display:inline-block}
.btn:hover{background:var(--hover);color:var(--text);border-color:var(--border-strong)}
.btp{background:linear-gradient(135deg,var(--prid),var(--pri));color:#fff;border:none;
  box-shadow:0 2px 6px rgba(29,78,216,.3)}
.btp:hover{background:linear-gradient(135deg,#1e3a8a,var(--prid));box-shadow:0 4px 12px rgba(29,78,216,.4);color:#fff}
.btp:disabled{background:#e5e7eb;color:var(--muted);box-shadow:none;cursor:not-allowed}
.btf{display:block;width:100%;padding:11px;border-radius:var(--r);font-size:13px;font-weight:700;text-align:center}
.btsm{padding:5px 10px;font-size:11px}
.hdr .btn,header .btn{background:transparent;color:rgba(255,255,255,.85);border-color:rgba(255,255,255,.35)}
.hdr .btn:hover,header .btn:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.6)}
/* Orange CTA button — ChemCalc "开始计算" style */
.bto{background:linear-gradient(135deg,#c2530a,#e07b1f);color:#fff;border:none;
  box-shadow:0 2px 6px rgba(194,83,10,.28)}
.bto:hover{background:linear-gradient(135deg,#a8440a,#c2530a);box-shadow:0 4px 12px rgba(194,83,10,.38);color:#fff}
.bto:disabled{background:#e5e7eb;color:var(--muted);box-shadow:none;cursor:not-allowed}

/* Horizontal form row — ChemCalc label-left layout */
.form-row{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.form-lbl{font-size:12px;color:var(--sec);min-width:110px;flex-shrink:0;font-weight:500}
.form-row input,.form-row select{flex:1;margin:0}

/* Result display row — teal values, unit on right */
.res-row{display:flex;align-items:baseline;padding:6px 2px;border-bottom:1px solid var(--border)}
.res-row:last-child{border-bottom:none}
.res-lbl{flex:1;font-size:12px;color:var(--sec)}
.res-val{font-size:14px;font-weight:700;font-family:monospace;color:var(--cyan);min-width:90px;text-align:right}
.res-unit{font-size:11px;color:var(--muted);min-width:44px;margin-left:6px}

/* Tab bar */
.tbr{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.tb{padding:6px 14px;border-radius:var(--rp);border:1px solid var(--border);
  background:#fff;color:var(--sec);font-size:12px;font-weight:600;cursor:pointer;font-family:inherit;transition:all .15s}
.tb:hover{color:var(--text);border-color:var(--border-strong);background:var(--hover)}
.tb.on{background:var(--teal);border-color:var(--teal);color:#fff}

/* KPI */
.kpi{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:10px 12px;text-align:center}
.kl{font-size:11px;color:var(--muted);font-weight:600;letter-spacing:.05em;text-transform:uppercase}
.kv{font-size:17px;font-weight:700;font-family:monospace;margin:3px 0;color:var(--text)}
.ks{font-size:10px;color:var(--muted)}
.gd{color:var(--success)}.wn{color:var(--warn)}.bd{color:var(--danger)}

/* Tables */
table{width:100%;border-collapse:collapse;font-size:12px}
th{text-align:left;padding:7px 9px;color:var(--muted);font-weight:600;font-size:10px;
  text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid var(--border);background:var(--card-alt)}
td{padding:6px 9px;border-bottom:1px solid var(--border);color:var(--text)}
tr.best td{background:rgba(16,185,129,.08)}
tr:nth-child(even) td{background:rgba(15,23,42,.015)}

/* Alerts */
.alert{padding:10px 12px;border-radius:var(--rs);font-size:12px;margin-bottom:10px;line-height:1.5}
.aerr{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}
.aok{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46}
.awarn{background:#fffbeb;border:1px solid #fed7aa;color:#92400e}

/* Misc */
hr{border:none;border-top:1px solid var(--border);margin:12px 0}
canvas{display:block;width:100%}
.prog{height:6px;background:var(--border);border-radius:3px;overflow:hidden;margin-top:5px}
.pf{height:100%;background:linear-gradient(90deg,var(--prid),var(--teal));transition:width .25s}
.simlog{font-size:10px;font-family:monospace;color:var(--sec);margin-top:4px}
.ub{border-left:3px solid var(--teal);padding:10px 12px;margin-bottom:10px;background:var(--card-alt);border-radius:0 var(--rs) var(--rs) 0}
.ub.g{border-color:var(--amber)}.ub.p{border-color:var(--purple)}
.br-row{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.br-lbl{font-size:11px;min-width:100px;color:var(--sec)}
.br-tr{flex:1;height:8px;background:var(--card-alt);border-radius:3px;overflow:hidden}
.br-f{height:100%;border-radius:3px}
.br-v{font-size:11px;font-family:monospace;min-width:52px;text-align:right;color:var(--text)}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--card-alt)}
::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}

/* FMEA table */
.fmea-tbl{width:100%;border-collapse:collapse;font-size:11px;min-width:820px}
.fmea-tbl th{padding:6px 5px;background:var(--card-alt);color:var(--muted);font-weight:600;font-size:9px;
  border-bottom:2px solid var(--border);text-align:left;white-space:nowrap;text-transform:uppercase;letter-spacing:.05em}
.fmea-tbl td{padding:3px 4px;border-bottom:1px solid var(--border);vertical-align:top}
.fmea-tbl input{width:100%;padding:4px 6px;border:none;background:transparent;color:var(--text);font-size:11px;outline:none;font-family:inherit}
.fmea-tbl input:focus{background:var(--hover);border-radius:3px;box-shadow:none}
.ni{width:42px}.ni input{text-align:center;font-family:monospace;width:42px}
.delbtn{background:none;border:none;color:var(--danger);cursor:pointer;font-size:14px;padding:2px}

/* Unified footer */
.site-footer{background:#0f172a;border-top:1px solid var(--border);
  padding:24px 16px 20px;margin-top:28px;font-size:11px;color:#94a3b8;text-align:center}
.site-footer .ft-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;max-width:880px;margin:0 auto 16px;text-align:left}
.site-footer .ft-col h4{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:#cbd5e1;margin-bottom:7px}
.site-footer .ft-col p,.site-footer .ft-col a{font-size:11px;color:#94a3b8;line-height:1.7;text-decoration:none;display:block;margin-bottom:2px}
.site-footer .ft-col a:hover{color:#5eead4}
.site-footer .ft-bottom{border-top:1px solid #1e293b;padding-top:11px;font-size:10px;color:#64748b}
.site-footer .ft-bottom a{color:#5eead4;text-decoration:none}
.ftr{text-align:center;padding:14px;font-size:11px;color:var(--muted);border-top:1px solid var(--border);background:var(--card);margin-top:16px}
.ftr a{color:var(--teal);text-decoration:none}

/* Modal */
.modal-bg{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:1000;display:flex;align-items:center;justify-content:center;padding:16px}
.modal{background:var(--card);border:1px solid var(--border);border-radius:12px;width:100%;max-width:720px;max-height:90vh;overflow-y:auto;padding:22px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal-title{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;justify-content:space-between;align-items:center;color:var(--text)}
.section-hdr{font-size:10px;font-weight:700;color:var(--teal);text-transform:uppercase;letter-spacing:.08em;margin:14px 0 8px;border-bottom:1px solid var(--border);padding-bottom:5px}

/* Toast */
.toast{position:fixed;bottom:24px;right:20px;background:var(--text);color:#fff;padding:10px 18px;border-radius:9px;font-size:12px;font-weight:600;z-index:9999;opacity:0;transition:opacity .3s;pointer-events:none;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.toast.show{opacity:1}

/* About */
.about-mod{display:flex;gap:11px;padding:11px 0;border-bottom:1px solid var(--border)}
.about-mod:last-child{border-bottom:none}
.about-mod .am-icon{font-size:24px;flex-shrink:0;width:34px}
.about-mod .am-name{font-size:13px;font-weight:700;color:var(--text)}
.about-mod .am-desc{font-size:11px;color:var(--sec);margin-top:2px;line-height:1.5}
.about-mod .am-tech{font-size:10px;color:var(--muted);margin-top:4px;font-family:monospace}

/* Free edition: hide print/export buttons in UI */
button[onclick*="window.print"]{display:none!important}

/* Print / PDF */
@media print{
  header,.hdr,.no-print,.site-footer,.lang-bar,.lb,
  button,.btn,input[type=button],input[type=submit],
  nav,.search-bar,.toolbar,.modal-bg,.modal,
  #dbCard,#failPanel,#failModalBg{display:none!important}
  body{background:#fff!important;color:#000!important;font-size:11pt}
  .card{break-inside:avoid;box-shadow:none!important;border:1px solid #ccc!important;margin-bottom:8pt}
  canvas{max-height:200pt;width:100%!important}
  table{font-size:10pt}
  th,td{padding:4pt 6pt;border:.5pt solid #999}
  .wrap,.ctn,.container{max-width:100%!important;padding:0!important}
  a{color:#000!important;text-decoration:none}
  h1,h2{font-size:14pt}
  body::before{content:'ReliToolbox v0.1  |  reliability.chemcalc.cn  |  ' attr(data-module);
    display:block;font-size:9pt;color:#666;border-bottom:.5pt solid #ccc;padding-bottom:4pt;margin-bottom:8pt}
}