:root {
  --bg: #0f1420;
  --panel: #1a2233;
  --panel-2: #222c42;
  --line: #2c3852;
  --text: #e7ecf5;
  --muted: #93a1bd;
  --primary: #2f6bff;
  --primary-d: #2456d6;
  --green: #17b26a;
  --red: #f04438;
  --amber: #f79009;
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
a { color: var(--primary); text-decoration: none; }

/* ─── Login ─── */
.login-wrap {
  height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(1200px 600px at 50% -10%, #1c2740, #0f1420);
}
.login-card {
  width: 360px; background: var(--panel); padding: 32px;
  border-radius: 14px; border: 1px solid var(--line); text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.login-logo { font-size: 46px; }
.login-card h1 { font-size: 20px; margin: 8px 0 2px; }
.login-card form { text-align: left; margin-top: 18px; }
.login-card label { display: block; margin: 12px 0 4px; font-size: 12px; color: var(--muted); }

/* ─── Inputs / botones ─── */
input, select, textarea {
  width: 100%; padding: 9px 11px; background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 8px; color: var(--text);
  font-size: 14px; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }
select option { background: var(--panel-2); }

.btn {
  border: 1px solid transparent; border-radius: 8px; padding: 9px 14px;
  font-size: 14px; cursor: pointer; font-weight: 600; color: #fff;
  background: var(--panel-2); transition: .12s;
}
.btn:hover { filter: brightness(1.1); }
.btn-primary { background: var(--primary); }
.btn-primary:hover { background: var(--primary-d); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--text); }
.btn-danger { background: var(--red); }
.btn-green { background: var(--green); }
.btn-block { width: 100%; margin-top: 18px; }
.btn.small { padding: 6px 10px; font-size: 12px; }

.alert { padding: 10px 12px; border-radius: 8px; margin-top: 12px; font-size: 13px; }
.alert-error { background: rgba(240,68,56,.15); color: #ffb4ae; border: 1px solid rgba(240,68,56,.3); }
.alert-ok { background: rgba(23,178,106,.15); color: #7ee2b0; border: 1px solid rgba(23,178,106,.3); }

/* ─── Layout app ─── */
#app-view { display: flex; height: 100vh; }
.sidebar {
  width: 236px; background: var(--panel); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; padding: 16px 12px;
}
.brand { font-weight: 700; font-size: 16px; padding: 6px 8px 16px; }
.brand span { vertical-align: middle; }
nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-item {
  padding: 10px 12px; border-radius: 8px; color: var(--muted);
  cursor: pointer; font-weight: 500;
}
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item.active { background: var(--primary); color: #fff; }
.sidebar-footer { border-top: 1px solid var(--line); padding-top: 10px; }

.content { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.topbar {
  height: 58px; border-bottom: 1px solid var(--line); display: flex;
  align-items: center; justify-content: space-between; padding: 0 22px;
  background: var(--panel);
}
#section-title { font-size: 17px; font-weight: 700; }
.user-box { display: flex; align-items: center; gap: 10px; }
.user-box span { color: var(--muted); }

.section { padding: 22px; overflow: auto; flex: 1; }

/* ─── Cards / tablas ─── */
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px; margin-bottom: 18px;
}
.card h3 { margin: 0 0 14px; font-size: 15px; }
.row { display: flex; gap: 14px; flex-wrap: wrap; }
.col { flex: 1; min-width: 180px; }
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .3px; }
tr:hover td { background: rgba(255,255,255,.02); }
.actions { display: flex; gap: 6px; }

.badge { padding: 3px 9px; border-radius: 20px; font-size: 11px; font-weight: 700; }
.badge-ok { background: rgba(23,178,106,.18); color: #7ee2b0; }
.badge-warn { background: rgba(247,144,9,.18); color: #ffca7a; }
.badge-err { background: rgba(240,68,56,.18); color: #ffb4ae; }
.badge-info { background: rgba(47,107,255,.18); color: #a9c2ff; }

.empty { text-align: center; padding: 40px; color: var(--muted); }

/* ─── Toast ─── */
.toast {
  position: fixed; top: 70px; right: 22px; z-index: 50; padding: 12px 16px;
  border-radius: 8px; font-size: 13px; font-weight: 600; box-shadow: 0 10px 30px rgba(0,0,0,.4);
  max-width: 380px;
}
.toast.ok { background: var(--green); color: #fff; }
.toast.err { background: var(--red); color: #fff; }

/* ─── Modal ─── */
.modal-wrap {
  position: fixed; inset: 0; background: rgba(0,0,0,.55); z-index: 40;
  display: flex; align-items: flex-start; justify-content: center; padding: 40px 16px; overflow: auto;
}
.modal {
  width: 620px; max-width: 100%; background: var(--panel);
  border: 1px solid var(--line); border-radius: 12px;
}
.modal-head { display: flex; justify-content: space-between; align-items: center;
  padding: 16px 20px; border-bottom: 1px solid var(--line); }
.modal-head h3 { margin: 0; font-size: 16px; }
.modal-close { background: none; border: none; color: var(--muted); font-size: 18px; cursor: pointer; }
.modal-body { padding: 20px; }

/* ─── Detalles factura ─── */
.detalle-row { display: grid; grid-template-columns: 1.2fr 2fr .8fr 1fr 1.2fr auto;
  gap: 8px; align-items: end; margin-bottom: 8px; }
.detalle-head { color: var(--muted); font-size: 11px; text-transform: uppercase; }
.result-box { background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px;
  padding: 16px; margin-top: 16px; }
.result-box .dl { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.kv { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px dashed var(--line); }
.mono { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 12px; word-break: break-all; }