:root{
  --brand:#2D28E0; --brand-dk:#1C18A8; --brand-soft:#EDECFF;
  --ink:#0A0C28; --ink-2:#3A3F63; --muted:#767CA0;
  --paper:#fff; --mist:#F5F6FC; --line:#E1E3F0;
  --gain:#00A88A; --warn:#E8573F; --amber:#E39400;
  --display:'Instrument Sans',-apple-system,BlinkMacSystemFont,sans-serif;
  --body:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:var(--body);background:var(--mist);color:var(--ink);font-size:14.5px;line-height:1.55;-webkit-font-smoothing:antialiased;}

/* ---- barra superior ---- */
header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.hbar{max-width:1180px;margin:0 auto;padding:13px 22px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.brandmark{display:flex;align-items:center;gap:8px;font-family:var(--display);font-weight:600;font-size:14px;color:var(--brand);letter-spacing:-.01em;}
.brandmark .dia{width:9px;height:9px;background:var(--brand);transform:rotate(45deg);border-radius:1.5px;}
.htitle{font-family:var(--display);font-weight:600;font-size:14px;color:var(--ink);}
.htitle span{color:var(--muted);font-weight:400;}
.hactions{margin-left:auto;display:flex;gap:8px;align-items:center;}
.dirty{font-size:12px;color:var(--warn);font-weight:500;display:none;}
.dirty.on{display:inline;}

button,.btn{font-family:var(--body);font-size:13px;font-weight:500;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--ink-2);padding:8px 13px;cursor:pointer;transition:.15s;}
button:hover,.btn:hover{border-color:var(--brand);color:var(--brand);}
button.pri{background:var(--brand);border-color:var(--brand);color:#fff;}
button.pri:hover{background:var(--brand-dk);border-color:var(--brand-dk);color:#fff;}
button.sm{padding:5px 10px;font-size:12px;}
button.danger:hover{border-color:var(--warn);color:var(--warn);}

/* ---- tabs ---- */
nav.tabs{max-width:1180px;margin:0 auto;padding:0 22px;display:flex;gap:2px;overflow-x:auto;}
nav.tabs button{border:none;background:none;border-radius:0;border-bottom:2px solid transparent;padding:11px 13px;white-space:nowrap;color:var(--muted);font-size:13px;}
nav.tabs button:hover{color:var(--brand);}
nav.tabs button.on{color:var(--brand);border-bottom-color:var(--brand);font-weight:600;}
nav.tabs .badge{display:inline-block;margin-left:6px;background:var(--brand-soft);color:var(--brand);font-size:10.5px;font-weight:600;padding:1px 6px;border-radius:100px;}

/* ---- layout ---- */
main{max-width:1180px;margin:0 auto;padding:26px 22px 90px;}
.panel{display:none;}
.panel.on{display:block;}
h2{font-family:var(--display);font-size:24px;font-weight:600;letter-spacing:-.02em;margin-bottom:5px;}
.sub{color:var(--muted);font-size:14px;margin-bottom:22px;max-width:76ch;}
h3{font-family:var(--display);font-size:15px;font-weight:600;margin-bottom:10px;}

.box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:16px;}
.box.tip{background:var(--brand-soft);border-color:#CFCCFA;}
.box.tip p{font-size:13.5px;color:var(--ink-2);}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;}
@media(max-width:840px){.grid2,.grid3,.grid4{grid-template-columns:1fr;}}

label{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-bottom:5px;}
input,textarea,select{width:100%;font-family:var(--body);font-size:14px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:8px;padding:9px 11px;transition:.15s;}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(45,40,224,.09);}
textarea{resize:vertical;min-height:70px;line-height:1.5;}
.field{margin-bottom:13px;}

/* ---- registros ---- */
.rec{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:12px;position:relative;}
.rec-head{display:flex;align-items:center;gap:10px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line);}
.rec-num{font-family:var(--display);font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:6px;padding:3px 9px;}
.rec-title{font-family:var(--display);font-weight:600;font-size:14.5px;flex:1;}
.calc{background:var(--mist);border-radius:8px;padding:11px 13px;margin-top:12px;font-size:13px;color:var(--ink-2);}
.calc b{font-family:var(--display);color:var(--brand);font-variant-numeric:tabular-nums;}
.empty{text-align:center;padding:36px 20px;color:var(--muted);font-size:13.5px;border:1px dashed var(--line);border-radius:12px;background:#fff;}

/* ---- cronómetro ---- */
.chrono{background:var(--ink);color:#fff;border-radius:12px;padding:20px;display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:center;margin-bottom:16px;}
.chrono .t{font-family:var(--display);font-size:44px;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1;}
.chrono .ctr{display:flex;gap:8px;flex-wrap:wrap;}
.chrono button{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);color:#fff;}
.chrono button:hover{background:rgba(255,255,255,.22);border-color:rgba(255,255,255,.4);color:#fff;}
.chrono button.go{background:var(--gain);border-color:var(--gain);}
.laps{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px;}
.lap{background:rgba(255,255,255,.1);border-radius:6px;padding:3px 9px;font-size:12px;font-variant-numeric:tabular-nums;}

/* ---- checklist ---- */
.chk{display:flex;align-items:flex-start;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-2);}
.chk:last-child{border:none;}
.chk input{width:17px;height:17px;flex:none;margin-top:1px;accent-color:var(--brand);cursor:pointer;}
.chk label{margin:0;font-size:14px;color:var(--ink-2);font-weight:400;cursor:pointer;}
.chk.done label{color:var(--muted);text-decoration:line-through;}

/* ---- tabla resumen ---- */
table{width:100%;border-collapse:collapse;font-size:13.5px;}
th{text-align:left;font-family:var(--display);font-size:12px;font-weight:600;color:var(--muted);padding:8px 10px;border-bottom:1.5px solid var(--line);}
td{padding:9px 10px;border-bottom:1px solid var(--line);color:var(--ink-2);}
td.n{text-align:right;font-variant-numeric:tabular-nums;}

.kpi{background:#fff;border:1px solid var(--line);border-radius:12px;padding:17px;}
.kpi .v{font-family:var(--display);font-size:30px;font-weight:600;letter-spacing:-.025em;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1;}
.kpi .l{font-size:12px;color:var(--muted);margin-top:7px;}

.guide{border-left:2px solid var(--brand-soft);padding-left:15px;margin-bottom:16px;}
.guide li{font-size:14px;color:var(--ink-2);margin-bottom:9px;list-style:none;position:relative;padding-left:19px;}
.guide li::before{content:'';position:absolute;left:0;top:8px;width:5px;height:5px;background:var(--brand);transform:rotate(45deg);}

.q{margin-bottom:15px;}
.q .qt{font-size:14px;color:var(--ink);font-weight:500;margin-bottom:6px;}
.warnbox{background:#FFF4F1;border:1px solid #FBD5CB;border-radius:10px;padding:14px 16px;font-size:13.5px;color:#8C3320;margin-bottom:16px;}

footer{position:fixed;bottom:0;left:0;right:0;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:11px 22px;z-index:99;}
.fbar{max-width:1180px;margin:0 auto;display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--muted);}
.fbar .sp{margin-left:auto;display:flex;gap:8px;}
@media print{header,footer,nav.tabs,.chrono,.hactions{display:none;}.panel{display:block!important;page-break-before:always;}main{padding:0;}}