:root {
  color-scheme: dark;
  --bg: #10161c;
  --panel: #18222c;
  --line: #2d3c4c;
  --text: #e8eef5;
  --muted: #93a4b5;
  --ok: #3dd68c;
  --warn: #f0c36a;
  --bad: #ff6d6d;
  --accent: #8eb8ff;
  --button: #243447;
}

* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.45 system-ui, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); }
h1 { font-size: 1.6rem; margin: 0 0 4px; }
h2, h3 { margin: 0; }
.lead, .muted { color: var(--muted); }
.muted { display: block; font-size: .85rem; }

.shell { min-height: 100vh; }
.top { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: rgba(16, 22, 28, .94); z-index: 2; }
.brand { color: var(--text); font-weight: 750; text-decoration: none; }
.who { margin-left: auto; color: var(--muted); font-size: .9rem; }
.salir { text-decoration: none; }
.menu { display: none; }
.workspace { display: grid; grid-template-columns: 220px 1fr; min-height: calc(100vh - 57px); }
nav { display: flex; flex-direction: column; gap: 6px; padding: 16px; border-right: 1px solid var(--line); }
nav a { color: var(--text); text-decoration: none; padding: 10px 12px; border-radius: 10px; }
nav a.active, nav a:hover { background: var(--button); }
.badge { background: var(--bad); color: #2a1010; border-radius: 999px; padding: 0 7px; font-size: .75rem; margin-left: 6px; }
main { padding: 20px 16px 48px; }

.cards { display: grid; gap: 14px; }
.card, .form, .login-card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 16px; }
.card header, .metrics, .toolbar, .resumen { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.card header { justify-content: space-between; }
.code, .eyebrow { color: var(--accent); font-size: .8rem; letter-spacing: .04em; text-transform: uppercase; }
.resumen { margin: 12px 0; }
.resumen div { min-width: 140px; }
dt { color: var(--muted); font-size: .78rem; }
dd { margin: 0; font-weight: 700; }
.plc { border-top: 1px solid var(--line); margin-top: 12px; padding-top: 12px; }
.plc h3 { font-size: 1rem; margin-bottom: 8px; }
.spark { width: 100%; height: 42px; margin-top: 8px; }
.spark polyline { fill: none; stroke: var(--accent); stroke-width: 1.6; }

.escena { --factor: 1; --c1: #7eb6ff; --c2: #f0c36a; background: #0c141c; border-radius: 12px; border: 1px solid #243244; margin: 12px 0; overflow: hidden; }
.escena.falla { border-color: var(--bad); }
.escena svg { display: block; width: 100%; height: auto; }
.rodillo, .bobina, .flujo, .cuchilla, .plegador, .punzon { transform-box: fill-box; transform-origin: center; animation-duration: calc(1.6s / var(--factor)); animation-timing-function: linear; animation-iteration-count: infinite; }
.rodillo, .bobina { animation-name: girar; }
.flujo { animation-name: fluir; stroke-dasharray: 12 8; }
.cuchilla { animation-name: corte; transform-origin: center top; }
.plegador { animation-name: pliegue; transform-origin: center top; }
.punzon { animation-name: golpe; transform-origin: center top; }
.escena.parada .rodillo, .escena.parada .bobina, .escena.parada .flujo, .escena.parada .cuchilla, .escena.parada .plegador, .escena.parada .punzon { animation-play-state: paused; }
.calor-1 { fill: var(--c1); }
.calor-2 { fill: var(--c2); }
@keyframes girar { to { transform: rotate(360deg); } }
@keyframes fluir { to { stroke-dashoffset: -80; } }
@keyframes corte { 0%, 68% { transform: translateY(0); } 80% { transform: translateY(26px); } 100% { transform: translateY(0); } }
@keyframes pliegue { 0%, 55% { transform: translateY(0); } 72% { transform: translateY(18px); } 100% { transform: translateY(0); } }
@keyframes golpe { 0%, 60% { transform: translateY(0); } 74% { transform: translateY(16px); } 100% { transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) {
  .rodillo, .bobina, .flujo, .cuchilla, .plegador, .punzon { animation: none; }
}

.pill { border-radius: 999px; padding: 3px 8px; font-size: .78rem; background: var(--button); }
.pill.ok { background: #164832; color: var(--ok); }
.pill.warn { background: #4a3a16; color: var(--warn); }
.pill.bad { background: #4d1e1e; color: var(--bad); }
.banner { background: var(--button); border-radius: 12px; padding: 12px; }
.banner.bad { background: #4d1e1e; }

.toolbar { margin: 16px 0; }
label { display: grid; gap: 6px; font-size: .9rem; color: var(--muted); }
.check { display: flex; align-items: center; gap: 8px; }
input, select, textarea, button { font: inherit; color: var(--text); background: #101820; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
textarea { min-height: 90px; }
button, .toolbar button { background: var(--button); cursor: pointer; }
button.activo, button[type="submit"] { background: var(--accent); color: #102033; border-color: transparent; font-weight: 700; }
.form { display: grid; gap: 12px; margin-bottom: 18px; max-width: 640px; }
.form.ancho { max-width: 880px; }
.par { display: grid; gap: 12px; }
.acciones { display: flex; flex-wrap: wrap; gap: 6px; }
a.boton { display: inline-flex; align-items: center; text-decoration: none; background: var(--accent); color: #102033; border-radius: 10px; padding: 10px 12px; font-weight: 700; }
.ficha { display: grid; gap: 12px; margin: 16px 0 24px; }
.ficha div { display: grid; gap: 2px; }
.evidencia { display: grid; gap: 6px; margin: 12px 0; padding: 12px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.evidencia video { width: 100%; max-height: 420px; background: #000; border-radius: 10px; }
.archivos { margin: 0; padding-left: 18px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-size: .8rem; font-weight: 650; }

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px 16px;
  background:
    radial-gradient(720px 360px at 50% -10%, rgba(142, 184, 255, .16), transparent 60%),
    var(--bg);
}
.login-card { width: min(400px, 100%); display: grid; gap: 14px; padding: 18px 18px 22px; box-shadow: 0 24px 60px rgba(0, 0, 0, .35); }
.login-logo { margin: 0; }
.login-card .eyebrow, .login-card h1 { text-align: center; }
.login-card h1 { font-size: 1.7rem; margin-bottom: 2px; }
.login-card form { display: grid; gap: 14px; }
.login-card input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }

@media (min-width: 900px) {
  .cards { grid-template-columns: 1fr; }
  .par { grid-template-columns: 1fr 1fr; }
  .ficha { grid-template-columns: 1fr 1fr; }
  main { padding: 28px; }
}

@media (max-width: 800px) {
  .menu { display: inline-flex; }
  .who { display: none; }
  .workspace { grid-template-columns: 1fr; }
  nav { display: none; border-right: 0; border-bottom: 1px solid var(--line); }
  nav.open { display: flex; }
}