:root {
  --navy: #0f2942;
  --navy-light: #1c3f5e;
  --teal: #0d7377;
  --teal-light: #14a3a8;
  --bg: #f4f6f8;
  --card-bg: #ffffff;
  --border: #d9e0e6;
  --text: #1c2733;
  --text-muted: #5a6b7a;
  --ok: #1c8a4b;
  --ok-bg: #e5f6ec;
  --warn: #b7791f;
  --warn-bg: #fdf3df;
  --danger: #b3261e;
  --danger-bg: #fbe9e7;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

#app { min-height: 100vh; }

.screen {
  max-width: 920px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

h1 { font-size: 1.7rem; color: var(--navy); margin: 4px 0 16px; }
h3 { color: var(--navy); margin-top: 28px; margin-bottom: 10px; }
h4.categoria-title { color: var(--teal); margin-top: 24px; margin-bottom: 8px; font-size: 1.05rem; }

.subtitle { color: var(--text-muted); max-width: 640px; }

.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}

/* -------- Inicio -------- */
.inicio-hero {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 4px;
}
.inicio-logo {
  height: 96px;
  width: auto;
  border-radius: 6px;
  flex-shrink: 0;
}
.inicio-bienvenida {
  font-size: 1.6rem;
  color: var(--navy);
  margin: 0;
}
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 28px;
}
.case-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.case-card h2 { font-size: 1.15rem; color: var(--navy); margin: 0 0 8px; }
.case-empresa { color: var(--text-muted); margin: 0 0 8px; }
.case-monto { margin: 0 0 12px; }
.case-historial { margin: 0 0 16px; font-size: 0.82rem; color: var(--teal); font-weight: 600; }

/* -------- Botones -------- */
.btn {
  border: none;
  border-radius: 6px;
  padding: 10px 18px;
  font-size: 0.95rem;
  cursor: pointer;
  font-weight: 600;
  transition: opacity 0.15s ease, transform 0.05s ease;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { background: var(--teal); color: white; }
.btn-primary:hover:not(:disabled) { background: var(--teal-light); }
.btn-secondary { background: transparent; color: var(--navy); border: 1px solid var(--border); }
.btn-secondary:hover { background: #eef1f4; }
.btn-small { padding: 6px 12px; font-size: 0.85rem; background: var(--navy); color: white; }
.btn-small:hover { background: var(--navy-light); }

.actions {
  display: flex;
  justify-content: space-between;
  margin-top: 32px;
  gap: 12px;
}

/* -------- Briefing -------- */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 24px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 16px 0;
}
.info-row { display: flex; justify-content: space-between; border-bottom: 1px dashed var(--border); padding-bottom: 6px; }
.info-label { color: var(--text-muted); font-size: 0.85rem; }
.info-value { font-weight: 600; text-align: right; }

.conceptos-list { padding-left: 20px; }
.conceptos-list li { margin-bottom: 4px; }

/* -------- Visita -------- */
.dialogo {
  background: var(--card-bg);
  border-left: 4px solid var(--teal);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 16px 0 24px;
}
.dialogo-linea { margin: 6px 0; }

.doc-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 8px; }
.doc-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 14px;
  gap: 12px;
}
.doc-tipo { flex: 1; font-weight: 500; }

.status-badge {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.status-pendiente, .status-revisando { background: #e7e9ec; color: var(--text-muted); }
.status-valido { background: var(--ok-bg); color: var(--ok); }
.status-observado { background: var(--warn-bg); color: var(--warn); }
.status-rechazado { background: var(--danger-bg); color: var(--danger); }

/* -------- Documento -------- */
.doc-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin: 12px 0;
}
.campos-grid { display: grid; gap: 8px; }
.campo-row { display: flex; justify-content: space-between; gap: 16px; border-bottom: 1px dashed var(--border); padding-bottom: 6px; }
.campo-label { color: var(--text-muted); font-size: 0.85rem; min-width: 200px; }
.campo-value { font-weight: 600; text-align: right; }

.doc-card-cfdi { border-top: 4px solid var(--teal); }
.cfdi-header {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  color: var(--navy);
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 6px;
}
.cfdi-header .uuid { font-family: "Consolas", monospace; font-size: 0.8rem; color: var(--text-muted); font-weight: 400; }
.cfdi-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; margin-bottom: 16px; }
.cfdi-field { display: flex; flex-direction: column; }
.cfdi-field-label { font-size: 0.78rem; color: var(--text-muted); }
.cfdi-field-value { font-weight: 600; }

.conceptos-table { width: 100%; border-collapse: collapse; margin: 10px 0; font-size: 0.9rem; }
.conceptos-table th, .conceptos-table td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; }
.conceptos-table th { background: #f0f3f5; }
.conceptos-table td:nth-child(2), .conceptos-table td:nth-child(3), .conceptos-table td:nth-child(4) { text-align: right; }

.cfdi-totales { display: flex; gap: 24px; justify-content: flex-end; font-size: 0.95rem; margin-top: 8px; }
.cfdi-totales .total { font-weight: 700; color: var(--navy); }

.referencia {
  background: #eef7f7;
  border: 1px solid var(--teal-light);
  border-radius: var(--radius);
  padding: 12px 18px;
  margin: 16px 0;
  font-size: 0.92rem;
}
.referencia ul { margin: 6px 0 0; padding-left: 20px; }

.checklist { display: flex; flex-direction: column; gap: 10px; }
.checklist-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 14px;
}
.checklist-label { flex: 1; font-size: 0.92rem; }
.toggle-group { display: flex; gap: 6px; }
.toggle-btn {
  border: 1px solid var(--border);
  background: white;
  border-radius: 5px;
  padding: 6px 12px;
  font-size: 0.82rem;
  cursor: pointer;
}
.toggle-btn.active { background: var(--navy); color: white; border-color: var(--navy); }

.veredicto-group { display: flex; gap: 10px; margin-top: 8px; flex-wrap: wrap; }
.btn-veredicto { background: white; border: 1px solid var(--border); color: var(--text); }
.btn-veredicto.status-valido.active { background: var(--ok); color: white; }
.btn-veredicto.status-observado.active { background: var(--warn); color: white; }
.btn-veredicto.status-rechazado.active { background: var(--danger); color: white; }

.motivo-label { display: block; margin-top: 16px; font-size: 0.85rem; color: var(--text-muted); }
.motivo-select { margin-top: 6px; padding: 8px 10px; border-radius: 6px; border: 1px solid var(--border); width: 100%; max-width: 420px; font-size: 0.92rem; }

/* -------- Conclusion -------- */
.resumen-table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.resumen-table th, .resumen-table td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.resumen-table th { background: #f0f3f5; }

.conclusion-options { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.btn-conclusion { text-align: left; background: white; border: 1px solid var(--border); color: var(--text); padding: 14px 16px; }
.btn-conclusion.active { background: var(--navy); color: white; border-color: var(--navy); }

/* -------- Resultados -------- */
.score-banner {
  display: flex;
  align-items: baseline;
  gap: 14px;
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 16px 0;
}
.score-banner.score-alto { background: var(--ok-bg); }
.score-banner.score-medio { background: var(--warn-bg); }
.score-banner.score-bajo { background: var(--danger-bg); }
.score-number { font-size: 2.4rem; font-weight: 800; color: var(--navy); }
.score-label { font-size: 1.05rem; color: var(--text-muted); }

.resultado-list { display: flex; flex-direction: column; gap: 12px; }
.resultado-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 5px solid var(--border);
  border-radius: 6px;
  padding: 12px 16px;
}
.resultado-item.resultado-correcto { border-left-color: var(--ok); }
.resultado-item.resultado-parcial { border-left-color: var(--warn); }
.resultado-item.resultado-incorrecto { border-left-color: var(--danger); }
.resultado-header { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-weight: 600; }
.resultado-veredictos { font-size: 0.82rem; color: var(--text-muted); font-weight: 400; }
.resultado-checklist { font-size: 0.82rem; color: var(--text-muted); margin-top: 4px; }
.resultado-explicacion { margin-top: 8px; font-size: 0.9rem; }

.feedback-parrafo {
  background: #eef7f7;
  border: 1px solid var(--teal-light);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 0.95rem;
  line-height: 1.55;
}

.categoria-breakdown { display: flex; flex-direction: column; gap: 12px; margin-bottom: 8px; }
.categoria-bar-row { display: flex; flex-direction: column; gap: 4px; }
.categoria-bar-label { font-size: 0.88rem; font-weight: 600; color: var(--navy); }
.categoria-bar-track { background: #e7e9ec; border-radius: 999px; height: 10px; overflow: hidden; }
.categoria-bar-fill { background: var(--teal); height: 100%; border-radius: 999px; transition: width 0.3s ease; }

.historial-table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 0.9rem; }
.historial-table th, .historial-table td { border: 1px solid var(--border); padding: 7px 10px; text-align: left; }
.historial-table th { background: #f0f3f5; }

/* -------- Ayuda -------- */
.help-fab {
  position: fixed;
  bottom: 22px;
  right: 22px;
  z-index: 1000;
  background: var(--navy);
  color: white;
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
}
.help-fab:hover { background: var(--navy-light); }

.screen-ayuda .ayuda-texto { font-size: 0.95rem; margin-bottom: 4px; }
.screen-ayuda .ayuda-texto ul { padding-left: 20px; margin: 8px 0; }
.screen-ayuda .ayuda-texto li { margin-bottom: 6px; }
.screen-ayuda h3 { border-top: 1px solid var(--border); padding-top: 18px; }
.screen-ayuda h3:first-of-type { border-top: none; padding-top: 0; }

/* -------- Footer -------- */
.site-footer {
  text-align: center;
  padding: 20px 16px 40px;
  color: var(--text-muted);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
  margin-top: 16px;
}
.site-footer p { margin: 0; }

/* -------- Barra superior -------- */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--navy);
  padding: 10px 24px;
  flex-wrap: wrap;
}
.top-bar-brand { display: flex; align-items: center; }
.top-bar-logo { height: 32px; width: auto; border-radius: 3px; }
.top-bar-nav { display: flex; gap: 6px; flex-wrap: wrap; }
.top-bar-link {
  background: transparent;
  color: #cfe0ea;
  border: none;
  padding: 6px 12px;
  border-radius: 5px;
  font-size: 0.88rem;
  cursor: pointer;
}
.top-bar-link:hover { background: rgba(255,255,255,0.08); color: white; }
.top-bar-link.active { background: var(--teal); color: white; font-weight: 600; }
.top-bar-user { display: flex; align-items: center; gap: 10px; }
.top-bar-nombre { color: #cfe0ea; font-size: 0.85rem; }
.top-bar-logout { background: transparent; border: 1px solid rgba(255,255,255,0.3); color: white; }
.top-bar-logout:hover { background: rgba(255,255,255,0.1); }

/* -------- Login / cambiar contraseña -------- */
.screen-login { display: flex; justify-content: center; padding-top: 60px; }
.login-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 36px;
  max-width: 380px;
  width: 100%;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}
.login-logo { height: 80px; width: auto; margin-bottom: 14px; border-radius: 6px; }
.login-title { font-size: 1.25rem; margin: 0 0 6px; }
.login-card .subtitle { font-size: 0.85rem; margin-bottom: 20px; }
.login-form, .cambiar-password-form { display: flex; flex-direction: column; gap: 12px; text-align: left; }
.login-form input, .cambiar-password-form input, .crear-usuario-form input, .crear-usuario-form select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  width: 100%;
}
.login-submit { margin-top: 4px; }
.form-error { color: var(--danger); background: var(--danger-bg); border-radius: 6px; padding: 8px 12px; font-size: 0.85rem; margin: 0; }
.cambiar-password-form { max-width: 420px; }

/* -------- Dashboard -------- */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin: 16px 0; }
.kpi-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; text-align: center; }
.kpi-value { font-size: 1.7rem; font-weight: 800; color: var(--navy); }
.kpi-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }
.dashboard-actions { margin: 12px 0 20px; }
.participante-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 14px;
}
.participante-header { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.participante-nombre { font-weight: 700; color: var(--navy); }
.participante-stats { font-size: 0.85rem; color: var(--text-muted); }

/* -------- Gestión de usuarios -------- */
.crear-usuario-form {
  display: grid;
  grid-template-columns: 1fr 1fr 160px auto;
  gap: 10px;
  align-items: start;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 20px;
}
.crear-usuario-form .form-error { grid-column: 1 / -1; }
.usuarios-table select { padding: 4px 6px; border-radius: 5px; border: 1px solid var(--border); }
.usuarios-acciones { display: flex; gap: 6px; flex-wrap: wrap; }

@media (max-width: 640px) {
  .info-grid, .cfdi-grid { grid-template-columns: 1fr; }
  .campo-label { min-width: 140px; }
  .actions { flex-direction: column-reverse; }
  .help-fab { bottom: 14px; right: 14px; padding: 10px 14px; font-size: 0.82rem; }
  .inicio-hero { flex-direction: column; text-align: center; gap: 12px; }
  .inicio-logo { height: 72px; }
  .top-bar { justify-content: center; text-align: center; }
  .crear-usuario-form { grid-template-columns: 1fr; }
}