:root{
  --ink:#161C24;
  --ink-2:#212A36;
  --paper:#F5EFE3;
  --paper-2:#EDE4D0;
  --signal:#E8622C;
  --signal-dark:#C74F1F;
  --highway:#2F6F5E;
  --highway-dark:#25574A;
  --line:#C9BEA5;
  --ink-soft:#6B7280;
  --danger:#B23A2E;
  --white:#FFFFFF;
  --radius:10px;
  --shadow:0 8px 24px rgba(22,28,36,0.18);
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--ink);
  color:var(--paper);
  font-family:'Inter',sans-serif;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--signal); color:var(--white);}
h1,h2,h3,.display{font-family:'Space Grotesk',sans-serif;}
.mono{font-family:'IBM Plex Mono',monospace;}
button{font-family:inherit; cursor:pointer;}
input, select, textarea{font-family:'Inter',sans-serif;}
a{color:inherit;}

/* ---------- LOGIN ---------- */
#login-screen{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
  background:
    radial-gradient(circle at 15% 20%, rgba(232,98,44,0.16), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(47,111,94,0.18), transparent 45%),
    var(--ink);
}
.login-card{
  width:100%;
  max-width:380px;
  background:var(--paper);
  color:var(--ink);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:36px 32px 28px;
  position:relative;
  border-top:6px solid var(--signal);
}
.login-eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--signal-dark);
  margin-bottom:6px;
}
.login-card h1{font-size:26px; margin:0 0 4px; line-height:1.1;}
.login-card p.sub{color:var(--ink-soft); font-size:13.5px; margin:0 0 26px;}
.field{margin-bottom:16px;}
.field label{
  display:block; font-size:12px; font-weight:600; text-transform:uppercase;
  letter-spacing:.05em; color:var(--ink-soft); margin-bottom:6px;
}
.field input, .field select, .field textarea{
  width:100%; padding:11px 12px; border:1.5px solid var(--line); border-radius:7px;
  background:var(--white); color:var(--ink); font-size:14.5px; outline:none;
  transition:border-color .15s;
}
.field input:focus, .field select:focus, .field textarea:focus{border-color:var(--signal);}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:12px 18px; border-radius:7px; border:none; font-weight:600; font-size:14px;
  transition:transform .1s, background .15s;
}
.btn:active{transform:scale(.98);}
.btn:disabled{opacity:.6; cursor:not-allowed;}
.btn-primary{background:var(--signal); color:var(--white); width:100%;}
.btn-primary:hover{background:var(--signal-dark);}
.btn-ghost{background:transparent; color:var(--ink-soft); border:1.5px solid var(--line);}
.btn-ghost:hover{border-color:var(--ink-soft); color:var(--ink);}
.btn-secondary{background:var(--highway); color:var(--white);}
.btn-secondary:hover{background:var(--highway-dark);}
.btn-danger{background:transparent; color:var(--danger); border:1.5px solid rgba(178,58,46,.4);}
.btn-danger:hover{background:rgba(178,58,46,.08);}
.btn-sm{padding:7px 12px; font-size:12.5px; border-radius:6px;}
.login-error{
  background:rgba(178,58,46,.09); color:var(--danger); border:1px solid rgba(178,58,46,.3);
  padding:9px 12px; border-radius:6px; font-size:13px; margin-bottom:14px; display:none;
}
.login-hint{
  margin-top:20px; font-size:11.5px; color:var(--ink-soft); line-height:1.5;
  border-top:1px dashed var(--line); padding-top:14px;
}

/* ---------- APP SHELL ---------- */
#app{display:none; min-height:100vh; flex-direction:column;}
header.topbar{
  background:var(--ink-2); border-bottom:1px solid rgba(255,255,255,0.08);
  padding:14px 26px; display:flex; align-items:center; justify-content:space-between;
  flex-wrap:wrap; gap:12px;
}
.brand{display:flex; align-items:center; gap:12px;}
.brand-mark{
  width:36px; height:36px; background:var(--signal); border-radius:8px;
  display:flex; align-items:center; justify-content:center; font-family:'Space Grotesk',sans-serif;
  font-weight:700; color:var(--white); font-size:15px; flex-shrink:0; transform:rotate(-3deg);
}
.brand-text h1{font-size:16px; margin:0; color:var(--paper); letter-spacing:.01em;}
.brand-text span{font-size:11px; color:var(--ink-soft); font-family:'IBM Plex Mono',monospace; text-transform:uppercase; letter-spacing:.08em;}
.topbar-right{display:flex; align-items:center; gap:16px;}
.clock-box{font-family:'IBM Plex Mono',monospace; text-align:right; line-height:1.3;}
.clock-box .time{font-size:15px; color:var(--paper); font-weight:600;}
.clock-box .date{font-size:11px; color:var(--ink-soft); text-transform:capitalize;}
.user-chip{display:flex; align-items:center; gap:8px; background:rgba(255,255,255,0.06); padding:6px 10px 6px 6px; border-radius:20px;}
.user-avatar{width:26px; height:26px; border-radius:50%; background:var(--highway); color:var(--white); display:flex; align-items:center; justify-content:center; font-size:11.5px; font-weight:700;}
.user-chip .uname{font-size:12.5px; color:var(--paper);}
.logout-link{background:none; border:none; color:var(--ink-soft); font-size:12px; text-decoration:underline; padding:0;}
.logout-link:hover{color:var(--signal);}

nav.tabs{display:flex; gap:2px; background:var(--ink-2); padding:0 22px; border-bottom:1px solid rgba(255,255,255,0.08); overflow-x:auto;}
nav.tabs a{background:none; border:none; color:var(--ink-soft); padding:13px 16px; font-size:13.5px; font-weight:600; border-bottom:3px solid transparent; white-space:nowrap; text-decoration:none; display:inline-block;}
nav.tabs a.active{color:var(--paper); border-bottom-color:var(--signal);}
nav.tabs a:hover{color:var(--paper);}

main{padding:26px; flex:1; max-width:1180px; width:100%; margin:0 auto;}
.section-head{display:flex; align-items:baseline; justify-content:space-between; margin-bottom:16px; flex-wrap:wrap; gap:10px;}
.section-head h2{font-size:20px; margin:0; color:var(--paper);}
.section-head .eyebrow{font-family:'IBM Plex Mono',monospace; font-size:10.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--signal); display:block; margin-bottom:4px;}

.kpi-row{display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:14px; margin-bottom:26px;}
.kpi-card{background:var(--paper); color:var(--ink); border-radius:var(--radius); padding:18px 20px; box-shadow:var(--shadow); position:relative; overflow:hidden;}
.kpi-card .num{font-family:'Space Grotesk',sans-serif; font-size:32px; font-weight:700; line-height:1;}
.kpi-card .label{font-size:12px; color:var(--ink-soft); margin-top:6px; text-transform:uppercase; letter-spacing:.04em;}
.kpi-card.accent-signal{border-left:5px solid var(--signal);}
.kpi-card.accent-highway{border-left:5px solid var(--highway);}
.kpi-card.accent-ink{border-left:5px solid var(--ink-2);}

.panel{background:var(--paper); color:var(--ink); border-radius:var(--radius); padding:22px 24px; box-shadow:var(--shadow); margin-bottom:22px;}
.panel h3{margin:0 0 14px; font-size:15px;}

.stamp{display:inline-block; font-family:'IBM Plex Mono',monospace; font-size:10.5px; font-weight:600; letter-spacing:.06em; text-transform:uppercase; padding:4px 9px; border-radius:4px; border:1.5px solid currentColor; transform:rotate(-2deg);}
.stamp.enruta{color:var(--signal-dark); background:rgba(232,98,44,.1);}
.stamp.finalizado{color:var(--highway-dark); background:rgba(47,111,94,.1);}
.stamp.cancelado{color:var(--danger); background:rgba(178,58,46,.08);}

.op-list{display:flex; flex-direction:column; gap:0;}
.op-row{display:flex; align-items:center; justify-content:space-between; padding:11px 4px; border-bottom:1px dashed var(--line); font-size:13.5px;}
.op-row:last-child{border-bottom:none;}
.op-row .op-name{font-weight:600;}
.op-row .op-meta{color:var(--ink-soft); font-size:12px; font-family:'IBM Plex Mono',monospace;}

.form-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:16px 18px;}
.form-grid .full{grid-column:1/-1;}
.toggle-group{display:flex; gap:10px;}
.toggle-opt{flex:1; text-align:center; padding:10px 8px; border:1.5px solid var(--line); border-radius:7px; font-size:13px; font-weight:600; color:var(--ink-soft); background:var(--white); user-select:none;}
.toggle-opt.selected-si{border-color:var(--highway); color:var(--highway-dark); background:rgba(47,111,94,.08);}
.toggle-opt.selected-no{border-color:var(--signal); color:var(--signal-dark); background:rgba(232,98,44,.08);}
.check-chip-row{display:flex; flex-wrap:wrap; gap:8px;}
.check-chip{padding:8px 12px; border:1.5px solid var(--line); border-radius:20px; font-size:12.5px; background:var(--white); color:var(--ink-soft); font-weight:600; user-select:none;}
.check-chip.on{border-color:var(--signal); background:rgba(232,98,44,.1); color:var(--signal-dark);}
.form-actions{display:flex; gap:10px; margin-top:22px; justify-content:flex-end;}
.helptext{font-size:11.5px; color:var(--ink-soft); margin-top:4px;}
.field-error{font-size:11.5px; color:var(--danger); margin-top:4px; display:none;}

.slip{background:var(--white); border:1.5px dashed var(--line); border-radius:8px; padding:14px 16px; margin-bottom:10px; position:relative;}
.slip-top{display:flex; justify-content:space-between; align-items:flex-start; gap:10px; margin-bottom:8px;}
.slip-op{font-weight:700; font-size:14.5px;}
.slip-route{font-size:12px; color:var(--ink-soft);}
.slip-times{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--ink-soft); margin-bottom:8px;}
.slip-flags{display:flex; flex-wrap:wrap; gap:6px; margin-bottom:8px;}
.flag{font-size:10.5px; padding:3px 8px; border-radius:4px; background:var(--paper-2); color:var(--ink-soft); font-weight:600;}
.flag.warn{background:rgba(232,98,44,.15); color:var(--signal-dark);}
.flag.ok{background:rgba(47,111,94,.13); color:var(--highway-dark);}
.slip-obs{font-size:12.5px; color:var(--ink); margin-bottom:10px; line-height:1.4;}
.slip-actions{display:flex; gap:8px; justify-content:flex-end; flex-wrap:wrap;}

.table-wrap{overflow-x:auto; border-radius:8px; border:1px solid var(--line);}
table.data-table{width:100%; border-collapse:collapse; background:var(--white); font-size:12.5px;}
table.data-table th{background:var(--ink-2); color:var(--paper); text-align:left; padding:10px 12px; font-size:11px; text-transform:uppercase; letter-spacing:.04em; position:sticky; top:0; font-family:'IBM Plex Mono',monospace; font-weight:600;}
table.data-table td{padding:9px 12px; border-bottom:1px solid var(--paper-2); color:var(--ink); vertical-align:top;}
table.data-table tr:hover td{background:var(--paper-2);}

.filters-row{display:flex; gap:12px; flex-wrap:wrap; margin-bottom:18px; align-items:flex-end;}
.filters-row .field{margin-bottom:0; min-width:150px;}

.empty-state{text-align:center; padding:40px 20px; color:var(--ink-soft);}
.empty-state .icon{font-size:34px; margin-bottom:10px;}

footer.hint-bar{padding:14px 26px; text-align:center; font-size:11px; color:var(--ink-soft); border-top:1px solid rgba(255,255,255,0.08); font-family:'IBM Plex Mono',monospace; letter-spacing:.03em;}

@media (max-width:640px){
  main{padding:16px;}
  header.topbar{padding:12px 16px;}
  .clock-box{display:none;}
  nav.tabs{padding:0 10px;}
}

.toast{
  position:fixed; bottom:22px; left:50%; transform:translateX(-50%) translateY(20px);
  background:var(--ink-2); color:var(--paper); padding:11px 20px; border-radius:8px;
  font-size:13px; box-shadow:var(--shadow); opacity:0; pointer-events:none;
  transition:opacity .2s, transform .2s; z-index:999; border-left:4px solid var(--signal);
  max-width:90vw;
}
.toast.show{opacity:1; transform:translateX(-50%) translateY(0);}
.toast.error{border-left-color:var(--danger);}

.loading-gate{min-height:100vh; display:flex; align-items:center; justify-content:center; color:var(--ink-soft); font-family:'IBM Plex Mono',monospace; font-size:13px;}