* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --acento: #FF98E1;
  --fondo: #111111;
  --fondo2: #1a1a1a;
  --fondo3: #222222;
  --borde: #2a2a2a;
  --texto: #ffffff;
  --texto2: #888888;
  --positivo: #00C896;
  --negativo: #FF4444;
}

html, body {
  background: var(--fondo);
  color: var(--texto);
  font-family: 'Inter', system-ui, sans-serif;
  height: 100%;
  overflow: hidden;
}

/* ── PANTALLAS ── */
.pantalla {
  display: none;
  position: fixed;
  inset: 0;
}
.pantalla.active {
  display: flex;
}

/* ── LOGIN ── */
#pantalla-login {
  align-items: center;
  justify-content: center;
  background: var(--fondo);
}

.login-container {
  width: 100%;
  max-width: 380px;
  padding: 40px 28px;
}

.login-logo {
  font-size: 26px;
  font-weight: 900;
  color: var(--acento);
  letter-spacing: 4px;
  text-align: center;
  margin-bottom: 6px;
}

.login-subtitulo {
  text-align: center;
  color: var(--texto2);
  font-size: 14px;
  margin-bottom: 40px;
}

.campo {
  margin-bottom: 18px;
}

.campo label {
  display: block;
  font-size: 13px;
  color: var(--texto2);
  margin-bottom: 6px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.campo input {
  width: 100%;
  background: var(--fondo2);
  border: 1px solid var(--borde);
  border-radius: 10px;
  padding: 14px 16px;
  color: var(--texto);
  font-size: 16px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.campo input:focus {
  border-color: var(--acento);
}

.error-msg {
  color: var(--negativo);
  font-size: 13px;
  min-height: 20px;
  margin-bottom: 12px;
}

button[type="submit"] {
  width: 100%;
  background: var(--acento);
  color: #111;
  border: none;
  border-radius: 10px;
  padding: 16px;
  font-size: 16px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: opacity 0.2s;
}

button[type="submit"]:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── APP PRINCIPAL ── */
#pantalla-app {
  flex-direction: column;
}

main {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px 16px;
  padding-bottom: calc(70px + env(safe-area-inset-bottom, 0px));
}

/* ── TABS ── */
.tab {
  display: none;
  animation: fadeIn 0.2s ease;
}
.tab.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.seccion-titulo {
  font-size: 22px;
  font-weight: 900;
  color: var(--acento);
  margin-bottom: 20px;
}

.seccion-subtitulo {
  font-size: 13px;
  font-weight: 700;
  color: var(--texto2);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 20px 0 12px;
}

/* ── KPIs ── */
.kpis-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 8px;
}

.kpi-card {
  background: var(--fondo2);
  border: 1px solid var(--borde);
  border-radius: 12px;
  padding: 16px;
}

.kpi-label {
  font-size: 12px;
  color: var(--texto2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.kpi-valor {
  font-size: 24px;
  font-weight: 900;
  color: var(--texto);
  line-height: 1.1;
}

.positivo { color: var(--positivo); }
.negativo { color: var(--negativo); }

/* ── CANALES ── */
.canales-lista {
  background: var(--fondo2);
  border: 1px solid var(--borde);
  border-radius: 12px;
  overflow: hidden;
}

.canal-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--borde);
  font-size: 15px;
}

.canal-row:last-child {
  border-bottom: none;
}

.canal-row span:first-child {
  color: var(--texto2);
}

.canal-row span:last-child {
  font-weight: 700;
}

.actualizacion-label {
  font-size: 12px;
  color: #444;
  text-align: right;
  margin-top: 12px;
}

/* ── MÓDULOS ── */
.modulos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.modulo-card {
  background: var(--fondo2);
  border: 1px solid var(--borde);
  border-radius: 14px;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--texto);
  transition: background 0.15s, border-color 0.15s;
  cursor: pointer;
}

.modulo-card:active {
  background: var(--fondo3);
  border-color: var(--acento);
}

.modulo-icono {
  font-size: 32px;
}

.modulo-nombre {
  font-size: 14px;
  font-weight: 700;
  color: var(--texto2);
}

/* ── ALERTAS ── */
.alerta-item {
  display: flex;
  gap: 14px;
  background: var(--fondo2);
  border: 1px solid var(--borde);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  align-items: flex-start;
}

.alerta-icono {
  font-size: 22px;
  flex-shrink: 0;
}

.alerta-titulo {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.alerta-desc {
  font-size: 13px;
  color: var(--texto2);
}

.alerta-info { border-left: 3px solid var(--acento); }
.alerta-warning { border-left: 3px solid #FFB347; }
.alerta-error { border-left: 3px solid var(--negativo); }

/* ── PERFIL ── */
.perfil-card {
  background: var(--fondo2);
  border: 1px solid var(--borde);
  border-radius: 14px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.perfil-icono {
  font-size: 48px;
}

.perfil-email {
  font-size: 16px;
  font-weight: 700;
  color: var(--texto);
}

.perfil-rol {
  font-size: 13px;
  color: var(--acento);
  font-weight: 600;
}

.btn-danger {
  width: 100%;
  background: transparent;
  border: 1px solid var(--negativo);
  color: var(--negativo);
  border-radius: 10px;
  padding: 16px;
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-danger:active {
  background: rgba(255, 68, 68, 0.1);
}

/* ── BOTTOM NAV ── */
.bottom-nav {
  display: flex;
  background: var(--fondo2);
  border-top: 1px solid var(--borde);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

.nav-btn {
  flex: 1;
  background: none;
  border: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0;
  cursor: pointer;
  gap: 4px;
  color: var(--texto2);
  font-family: inherit;
  transition: color 0.15s;
}

.nav-btn.active {
  color: var(--acento);
}

.nav-icono {
  font-size: 22px;
}

.nav-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}