:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1a1d23;
  --text-secondary: #6b7280;
  --border: #e2e4e9;
  --accent: #0f172a;
  --accent-2: #2563eb;
  --danger: #dc2626;
  --ok: #16a34a;
  --warn: #d97706;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101317;
    --card: #181c22;
    --text: #e7e9ee;
    --text-secondary: #9aa2af;
    --border: #2a2f38;
    --accent: #e7e9ee;
    --accent-2: #5b8def;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 15px;
  -webkit-tap-highlight-color: transparent;
}
#app { min-height: 100vh; display: flex; flex-direction: column; }

.pantalla-login {
  flex: 1; display: flex; align-items: center; justify-content: center;
  padding: 1.5rem;
}
.login-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 1.75rem 1.5rem; width: 100%; max-width: 340px;
}
.login-card h1 {
  font-size: 1.1rem; margin: 0 0 0.25rem; text-align: center;
}
.login-card p.ayuda { color: var(--text-secondary); font-size: 0.82rem; text-align: center; margin: 0 0 1.25rem; }
.login-card label { display: block; font-size: 0.82rem; color: var(--text-secondary); margin: 0.75rem 0 0.3rem; }
.login-card input {
  width: 100%; padding: 0.65rem 0.75rem; border-radius: 9px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: 1rem;
}
.login-card button {
  width: 100%; margin-top: 1.25rem; padding: 0.7rem; border: none; border-radius: 9px;
  background: var(--accent-2); color: white; font-size: 1rem; font-weight: 600; cursor: pointer;
}
.login-card button:disabled { opacity: 0.6; }
.error-msg { color: var(--danger); font-size: 0.82rem; margin-top: 0.6rem; text-align: center; }

.banner-instalar {
  display: flex; align-items: center; gap: 0.6rem; padding: 0.55rem 0.9rem;
  background: var(--accent-2); color: white; font-size: 0.8rem; line-height: 1.3;
}
.banner-instalar span { flex: 1; }
.banner-instalar button#btn-instalar {
  background: white; color: var(--accent-2); border: none; border-radius: 7px;
  padding: 0.32rem 0.7rem; font-weight: 600; font-size: 0.78rem; cursor: pointer; white-space: nowrap;
}
.banner-instalar button.cerrar {
  background: none; border: none; color: white; font-size: 1.15rem; line-height: 1;
  cursor: pointer; padding: 0 0.15rem; opacity: 0.85;
}
.pantalla-login .banner-instalar { position: sticky; top: 0; z-index: 6; }

header.top {
  display: flex; align-items: center; gap: 0.6rem; padding: 0.85rem 1rem;
  background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
header.top img { width: 32px; height: 32px; border-radius: 7px; object-fit: cover; }
header.top .nombre-empresa { font-weight: 600; font-size: 0.95rem; flex: 1; }
header.top button.salir { background: none; border: none; color: var(--text-secondary); font-size: 0.8rem; cursor: pointer; }

nav.tabs {
  display: flex; overflow-x: auto; gap: 0.3rem; padding: 0.5rem 0.6rem;
  background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 57px; z-index: 4;
}
nav.tabs button {
  flex-shrink: 0; padding: 0.4rem 0.75rem; border-radius: 999px; border: 1px solid var(--border);
  background: transparent; color: var(--text-secondary); font-size: 0.82rem; cursor: pointer;
}
nav.tabs button.activo { background: var(--accent-2); color: white; border-color: var(--accent-2); }

main { flex: 1; padding: 0.85rem; padding-bottom: 2.5rem; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 0.85rem 0.9rem; margin-bottom: 0.65rem;
}
.card-title { font-size: 0.78rem; color: var(--text-secondary); margin: 0 0 0.2rem; }
.card-valor { font-size: 1.4rem; font-weight: 700; }

.fila {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 0.65rem 0.8rem; margin-bottom: 0.5rem;
}
.fila-cabecera { display: flex; justify-content: space-between; align-items: baseline; gap: 0.5rem; cursor: pointer; }
.fila-cabecera .principal { font-weight: 600; font-size: 0.92rem; }
.fila-cabecera .secundario { color: var(--text-secondary); font-size: 0.78rem; }
.fila-cabecera .monto { font-weight: 700; white-space: nowrap; }
.fila-detalle { margin-top: 0.55rem; padding-top: 0.55rem; border-top: 1px dashed var(--border); font-size: 0.82rem; display: none; }
.fila-detalle.abierto { display: block; }
.fila-detalle table { width: 100%; border-collapse: collapse; }
.fila-detalle td { padding: 0.2rem 0; }
.fila-detalle td:last-child { text-align: right; }

.badge { display: inline-block; padding: 0.12rem 0.5rem; border-radius: 999px; font-size: 0.72rem; font-weight: 600; }
.badge.ok { background: rgba(22,163,74,0.15); color: var(--ok); }
.badge.warn { background: rgba(217,119,6,0.15); color: var(--warn); }
.badge.danger { background: rgba(220,38,38,0.15); color: var(--danger); }
.badge.neutro { background: rgba(107,114,128,0.15); color: var(--text-secondary); }

.vacio { color: var(--text-secondary); text-align: center; padding: 2rem 1rem; font-size: 0.88rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; }
@media (min-width: 560px) { main { max-width: 640px; margin: 0 auto; } }