:root{
  --paper:#EEF2F6;
  --ink:#0B2545;
  --ink-soft:#4C6584;
  --line:#C9D6E3;
  --surface:#FFFFFF;
  --surface-sunken:#E3EAF1;
  --accent:#D64A00;
  --accent-soft:#FBE6D9;
  --accent-ink:#8A3200;
  --verde:#1E8F5F; --verde-soft:#DEF3E8;
  --amarillo:#A8730E; --amarillo-soft:#FBEED2;
  --rojo:#C0392B; --rojo-soft:#FBE1DE;
  --azul:#1D6FB8; --azul-soft:#E2EFFA;
  --shadow:0 1px 2px rgba(11,37,69,.04), 0 10px 28px -14px rgba(11,37,69,.18);
  --focus:#D64A00;
  --radius:12px;
}

*{box-sizing:border-box}
html{color-scheme:light}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;line-height:1.55;
}
h1,h2,h3,h4{
  font-family:"IBM Plex Sans Condensed",sans-serif;font-weight:600;
  margin:0 0 4px;letter-spacing:-.005em;color:var(--ink);
}
h1{font-size:1.5rem} h2{font-size:1.15rem} h3{font-size:1rem;margin-top:22px} h4{font-size:.9rem;color:var(--ink-soft);margin-top:14px}
p{margin:0 0 10px}
.mono{font-family:"IBM Plex Mono",monospace}
a{color:var(--accent)}
button{font-family:inherit}
::selection{background:var(--accent);color:#fff}

/* ---------- botones ---------- */
.btn{
  font-family:inherit;font-weight:600;font-size:.88rem;cursor:pointer;
  border-radius:9px;padding:9px 16px;border:1px solid transparent;
  transition:background .15s,border-color .15s,transform .1s;
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
}
.btn:active{transform:scale(.98)}
.btn:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#163a66}
.btn-outline{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--ink-soft)}
.btn-ghost:hover{background:var(--surface-sunken);color:var(--ink)}
.btn-sm{padding:6px 12px;font-size:.8rem}
.btn-block{width:100%;justify-content:center}
.btn-danger{background:var(--rojo-soft);color:var(--rojo);border-color:transparent}
.btn-danger:hover{background:#f6cfca}

/* ---------- login ---------- */
.pantalla-login{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  padding:24px;background:
    repeating-linear-gradient(0deg, rgba(11,37,69,.05) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(90deg, rgba(11,37,69,.05) 0 1px, transparent 1px 32px),
    var(--paper);
}
.login-card{
  width:100%;max-width:380px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:30px 28px 24px;
}
.login-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.login-mark{
  flex:none;width:42px;height:42px;border-radius:10px;background:var(--ink);color:var(--accent);
  display:grid;place-items:center;font-family:Georgia,serif;font-size:1.5rem;font-weight:700;
}
.login-eyebrow{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft)}
.login-card h1{margin:2px 0 0}
.login-form{display:flex;flex-direction:column;gap:14px}
.login-form label{display:flex;flex-direction:column;gap:5px;font-size:.82rem;font-weight:600;color:var(--ink-soft)}
.login-form input{
  font-family:inherit;font-size:.95rem;padding:10px 12px;border-radius:8px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
}
.login-form input:focus-visible{outline:2px solid var(--focus);outline-offset:1px;border-color:var(--accent)}
.login-error{color:var(--rojo);font-size:.84rem;margin:0;background:var(--rojo-soft);padding:8px 10px;border-radius:8px}
.login-nota{margin-top:18px;font-size:.78rem;color:var(--ink-soft);text-align:center}

/* ---------- app shell ---------- */
.app-shell{min-height:100vh;display:flex;flex-direction:column}
.app-header{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px clamp(16px,3vw,32px);background:var(--ink);color:#fff;
  position:sticky;top:0;z-index:10;
}
.app-header-left{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:34px;height:34px;border-radius:8px;background:rgba(255,255,255,.1);color:var(--accent);
  display:grid;place-items:center;font-family:Georgia,serif;font-weight:700;font-size:1.2rem;flex:none;
}
.app-eyebrow{font-family:"IBM Plex Mono",monospace;font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;color:#9FB8D4}
.app-title{font-family:"IBM Plex Sans Condensed",sans-serif;font-weight:600;font-size:1.05rem;color:#fff}
.app-header-right{display:flex;align-items:center;gap:12px}
.usuario-chip{display:flex;align-items:center;gap:8px;font-size:.85rem}
#usuario-nombre{color:#fff;font-weight:600}
.rol-badge{
  font-family:"IBM Plex Mono",monospace;font-size:.66rem;font-weight:600;letter-spacing:.03em;
  padding:3px 9px;border-radius:999px;background:rgba(214,74,0,.25);color:#FFD2B0;border:1px solid rgba(214,74,0,.5);
}
.app-header .btn-ghost{color:#C3D4E6}
.app-header .btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff}

.app-banner{
  padding:10px clamp(16px,3vw,32px);font-size:.86rem;font-weight:600;
}
.app-banner.ok{background:var(--verde-soft);color:var(--verde)}
.app-banner.error{background:var(--rojo-soft);color:var(--rojo)}

.app-main{flex:1;max-width:1180px;width:100%;margin:0 auto;padding:22px clamp(16px,3vw,32px) 60px;display:flex;flex-direction:column;gap:18px}

/* ---------- paneles ---------- */
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px clamp(16px,3vw,24px) 22px;box-shadow:var(--shadow);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.vacio{color:var(--ink-soft);font-size:.88rem;font-style:italic}

/* ---------- lista de obras ---------- */
.obras-lista{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.obra-card{
  text-align:left;background:var(--surface-sunken);border:1px solid var(--line);border-radius:10px;
  padding:13px 15px;cursor:pointer;transition:border-color .15s,background .15s;
}
.obra-card:hover{border-color:var(--accent)}
.obra-card.is-selected{border-color:var(--accent);background:var(--accent-soft)}
.obra-card .obra-id{font-family:"IBM Plex Mono",monospace;font-size:.72rem;color:var(--accent-ink);font-weight:600}
.obra-card .obra-nombre{font-weight:600;margin-top:2px}
.obra-card .obra-cliente{font-size:.8rem;color:var(--ink-soft)}

/* ---------- formularios ---------- */
.formulario{display:flex;flex-direction:column;gap:4px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}
@media(max-width:620px){.grid-2{grid-template-columns:1fr}}
.formulario label{display:flex;flex-direction:column;gap:5px;font-size:.82rem;font-weight:600;color:var(--ink-soft);margin-bottom:8px}
.formulario label.span-2{grid-column:1/-1}
.formulario label.check{flex-direction:row;align-items:center;gap:8px;font-weight:500}
.formulario input[type=text],.formulario input[type=date],.formulario input[type=number]{
  font-family:inherit;font-size:.92rem;padding:9px 11px;border-radius:8px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
}
.formulario input:focus-visible{outline:2px solid var(--focus);outline-offset:1px;border-color:var(--accent)}
.form-actions{display:flex;align-items:center;gap:12px;margin-top:14px}
.form-msg{font-size:.84rem;font-weight:600}
.form-msg.ok{color:var(--verde)}
.form-msg.error{color:var(--rojo)}
.solo-lectura-nota{
  background:var(--surface-sunken);border:1px dashed var(--line);border-radius:8px;
  padding:10px 13px;color:var(--ink-soft);font-size:.84rem;margin-bottom:10px;
}

/* filas dinámicas (rubros / items) */
.filas-dinamicas{display:flex;flex-direction:column;gap:8px;margin-bottom:10px}
.fila-dinamica{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr)) auto;gap:8px;align-items:end;
  background:var(--surface-sunken);border-radius:8px;padding:10px;
}
.fila-dinamica label{margin-bottom:0;font-size:.72rem}
.fila-dinamica input{padding:7px 9px;font-size:.85rem}
.fila-dinamica .btn-quitar{align-self:center}

/* ---------- tabs ---------- */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:16px;overflow-x:auto}
.tab-btn{
  font-family:inherit;font-weight:600;font-size:.86rem;color:var(--ink-soft);
  background:none;border:none;border-bottom:2px solid transparent;padding:9px 4px;cursor:pointer;
  white-space:nowrap;margin-right:16px;
}
.tab-btn:hover{color:var(--ink)}
.tab-btn.is-active{color:var(--accent);border-bottom-color:var(--accent)}
.tab-panel{display:none}
.tab-panel.is-active{display:block}

/* ---------- tablas ---------- */
.tabla-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px}
.tabla{width:100%;border-collapse:collapse;font-size:.86rem}
.tabla th{
  text-align:left;background:var(--surface-sunken);color:var(--ink-soft);
  font-size:.72rem;letter-spacing:.03em;text-transform:uppercase;padding:9px 12px;font-weight:600;
}
.tabla td{padding:9px 12px;border-top:1px solid var(--line)}
.tabla tbody tr:hover{background:var(--surface-sunken)}

/* ---------- stat cards ---------- */
.cards-stat{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden;margin-bottom:6px}
.stat{background:var(--surface);padding:12px 14px}
.stat .n{font-family:"IBM Plex Mono",monospace;font-size:1.3rem;font-weight:600;color:var(--ink)}
.stat .label{font-size:.72rem;color:var(--ink-soft)}

/* ---------- badges de estado ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;font-size:.72rem;font-weight:700;
  padding:3px 10px;border-radius:999px;letter-spacing:.02em;
}
.badge .dot{width:6px;height:6px;border-radius:50%}
.badge-verde{background:var(--verde-soft);color:var(--verde)}
.badge-verde .dot{background:var(--verde)}
.badge-amarillo{background:var(--amarillo-soft);color:var(--amarillo)}
.badge-amarillo .dot{background:var(--amarillo)}
.badge-rojo{background:var(--rojo-soft);color:var(--rojo)}
.badge-rojo .dot{background:var(--rojo)}
.badge-azul{background:var(--azul-soft);color:var(--azul)}
.badge-azul .dot{background:var(--azul)}

/* ---------- aprobación ---------- */
.cert-pendiente-card{
  border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:12px;background:var(--surface-sunken);
}
.cert-pendiente-card h4{margin-top:0}
.aprobacion-botones{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.motivo-rechazo-input{
  width:100%;font-family:inherit;font-size:.85rem;padding:8px 10px;border-radius:8px;
  border:1px solid var(--line);margin-top:8px;
}

/* ---------- as-built ---------- */
.asbuilt-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:14px}
@media(max-width:620px){.asbuilt-col{grid-template-columns:1fr}}
.asbuilt-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}
.asbuilt-col li{
  font-family:"IBM Plex Mono",monospace;font-size:.82rem;background:var(--surface-sunken);
  padding:7px 10px;border-radius:6px;word-break:break-all;
}

[hidden]{display:none!important}

@media(max-width:620px){
  .app-header-right{gap:8px}
  .usuario-chip{display:none}
}