/* =========================================================
   Login — Módulo directivo · Muralla Legal
   Paleta tomada del logo:
     azul profundo #1B4F8A · #1E5A98
     azul medio    #2970A8 · #3E80B4
     azul claro    #78B8DB · #86C7E7
   ========================================================= */

:root {
  --azul-900: #0E2C4E;
  --azul-800: #143A66;
  --azul-700: #1B4F8A;
  --azul-600: #1E5A98;
  --azul-500: #2970A8;
  --azul-400: #3E80B4;
  --azul-300: #78B8DB;
  --azul-200: #A8D4EC;
  --azul-050: #EAF3FA;

  --tinta: #14243A;
  --gris: #6B7A8C;
  --linea: #DFE7EF;
  --blanco: #FFFFFF;

  --fuente: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --curva: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--fuente);
  color: var(--tinta);
  background: var(--blanco);
  -webkit-font-smoothing: antialiased;
}

.acceso {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  min-height: 100vh;
}

/* =========================================================
   PORTADA (lado izquierdo)
   ========================================================= */

.portada {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 15% 10%, #1F62A2 0%, transparent 55%),
    linear-gradient(155deg, var(--azul-800) 0%, var(--azul-900) 55%, #0A2039 100%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 48px;
}

/* halo suave que respira detrás de la escena */
.portada-halo {
  position: absolute;
  width: 620px;
  height: 620px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(120, 184, 219, .28) 0%, transparent 62%);
  filter: blur(10px);
  animation: respirar 9s ease-in-out infinite;
}

@keyframes respirar {
  0%, 100% { opacity: .55; transform: translate(-50%, -50%) scale(1); }
  50%      { opacity: .9;  transform: translate(-50%, -50%) scale(1.09); }
}

/* rejilla en perspectiva: da el "piso" de la escena 3D */
.portada-rejilla {
  position: absolute;
  inset: auto 0 -10% 0;
  height: 55%;
  background-image:
    linear-gradient(rgba(168, 212, 236, .16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168, 212, 236, .16) 1px, transparent 1px);
  background-size: 46px 46px;
  transform: perspective(520px) rotateX(62deg);
  transform-origin: bottom center;
  mask-image: linear-gradient(to top, #000 10%, transparent 85%);
  -webkit-mask-image: linear-gradient(to top, #000 10%, transparent 85%);
}

/* ---------- Escena 3D ---------- */

.escena {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 380px;
}

/* Barras isométricas: cada barra = cara frontal + lateral + tapa,
   construidas con skew (no con rotate del contenedor, que las aplasta) */
.barras3d {
  position: relative;
  display: flex;
  align-items: flex-end;
  gap: 26px;
  padding: 0 30px 0 0;
  animation: entrarEscena 1.1s var(--curva) both;
}

@keyframes entrarEscena {
  from { opacity: 0; transform: translateY(34px); }
  to   { opacity: 1; transform: translateY(0); }
}

.barra {
  position: relative;
  width: 38px;
  height: var(--altura);
  animation: crecer 1.1s var(--curva) both;
  animation-delay: var(--demora);
}

@keyframes crecer {
  from { height: 8px; opacity: 0; }
  to   { height: var(--altura); opacity: 1; }
}

/* cara frontal */
.barra i {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--azul-400), var(--azul-600));
}

/* cara lateral derecha */
.barra span {
  position: absolute;
  top: 0;
  right: -16px;
  width: 16px;
  height: 100%;
  background: linear-gradient(180deg, var(--azul-600), var(--azul-800));
  transform: skewY(-45deg);
  transform-origin: left top;
}

/* tapa superior */
.barra b {
  position: absolute;
  top: -16px;
  left: 0;
  width: 100%;
  height: 16px;
  background: var(--azul-300);
  transform: skewX(-45deg);
  transform-origin: bottom left;
}

/* piso de la escena */
.plataforma {
  position: absolute;
  left: -26px;
  right: 4px;
  bottom: -4px;
  height: 16px;
  background: linear-gradient(180deg, rgba(168, 212, 236, .2), rgba(168, 212, 236, .03));
  transform: skewX(-45deg);
  transform-origin: bottom left;
}

/* ---------- Tarjetas flotantes ---------- */

.tarjeta-flotante {
  position: absolute;
  background: rgba(255, 255, 255, .1);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 14px;
  padding: 16px 18px;
  color: #fff;
  box-shadow: 0 18px 40px rgba(6, 22, 40, .38);
}

.tarjeta-kpi {
  top: 6%;
  left: 2%;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 178px;
  animation: entrarTarjeta .9s var(--curva) .45s both, flotar 6.5s ease-in-out 1.4s infinite;
}

.tarjeta-anillo {
  bottom: 8%;
  right: 2%;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: entrarTarjeta .9s var(--curva) .65s both, flotar 7.5s ease-in-out 1.6s infinite reverse;
}

@keyframes entrarTarjeta {
  from { opacity: 0; transform: translateY(22px) scale(.94); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes flotar {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-11px); }
}

.kpi-etiqueta {
  font-size: 12px;
  font-weight: 500;
  color: rgba(255, 255, 255, .72);
}
.kpi-numero {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -.02em;
}
.kpi-delta {
  font-size: 11px;
  font-weight: 600;
  color: var(--azul-200);
}

.anillo { width: 54px; height: 54px; transform: rotate(-90deg); }
.anillo-base {
  fill: none;
  stroke: rgba(255, 255, 255, .2);
  stroke-width: 5;
}
.anillo-valor {
  fill: none;
  stroke: var(--azul-300);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: llenarAnillo 1.6s var(--curva) .9s forwards;
}
@keyframes llenarAnillo {
  to { stroke-dashoffset: 38; } /* 62% */
}

.anillo-texto { display: flex; flex-direction: column; }
.anillo-texto strong { font-size: 20px; font-weight: 800; }
.anillo-texto span { font-size: 11px; color: rgba(255, 255, 255, .7); }

/* ---------- Tarjeta con minigráfico de tendencia ---------- */

.tarjeta-tendencia {
  top: 8%;
  right: 4%;
  width: 190px;
  animation: entrarTarjeta .9s var(--curva) .8s both, flotar 8s ease-in-out 1.8s infinite;
}

.tarjeta-tendencia .kpi-etiqueta { margin-bottom: 8px; display: block; }

.linea-tendencia {
  display: block;
  width: 100%;
  height: 54px;
}

.tendencia-trazo {
  stroke-dasharray: 420;
  stroke-dashoffset: 420;
  animation: dibujarLinea 1.8s var(--curva) 1.1s forwards;
}
@keyframes dibujarLinea { to { stroke-dashoffset: 0; } }

.tendencia-relleno {
  opacity: 0;
  animation: aparecer 1s ease 2.2s forwards;
}
@keyframes aparecer { to { opacity: 1; } }

/* ---------- Pie de la portada ---------- */

.portada-pie { position: relative; z-index: 2; }

.portada-frase {
  margin: 0;
  color: rgba(255, 255, 255, .82);
  font-size: 17px;
  font-weight: 500;
  max-width: 30ch;
  line-height: 1.5;
  animation: entrarTarjeta .9s var(--curva) .9s both;
}

/* =========================================================
   PANEL DE ACCESO (lado derecho)
   ========================================================= */

.acceso-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  background: var(--blanco);
}

.acceso-caja {
  width: 100%;
  max-width: 400px;
  animation: entrarPanel .8s var(--curva) both;
}

@keyframes entrarPanel {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.marca {
  width: 132px;
  height: auto;
  display: block;
  margin-bottom: 32px;
}

.saludo-linea {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--azul-500);
}

.saludo {
  margin: 0 0 12px;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.15;
}

.saludo-texto {
  margin: 0 0 30px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--gris);
}

/* ---------- Campo con etiqueta flotante ---------- */

.campo {
  position: relative;
  margin-bottom: 22px;
}

.campo input {
  width: 100%;
  height: 56px;
  padding: 22px 46px 8px 16px;
  font-family: var(--fuente);
  font-size: 15px;
  font-weight: 500;
  color: var(--tinta);
  background: var(--azul-050);
  border: 1.5px solid transparent;
  border-radius: 12px;
  outline: none;
  transition: background .25s var(--curva), border-color .25s var(--curva);
}

.campo input:hover { background: #E2EDF7; }

.campo input:focus {
  background: var(--blanco);
  border-color: var(--azul-400);
}

/* la etiqueta parte como placeholder y sube al escribir o enfocar */
.campo label {
  position: absolute;
  left: 16px;
  top: 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--gris);
  pointer-events: none;
  transform-origin: left top;
  transition: transform .28s var(--curva), color .28s var(--curva);
}

.campo input:focus + label,
.campo input:not(:placeholder-shown) + label {
  transform: translateY(-11px) scale(.76);
  color: var(--azul-500);
}

/* anillo suave al enfocar, acorde a las esquinas redondeadas */
.campo input:focus {
  box-shadow: 0 0 0 4px rgba(41, 112, 168, .14);
}

.campo-linea { display: none; }

.ojo {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: 8px;
  color: var(--gris);
  cursor: pointer;
  transition: color .2s, background .2s;
}
.ojo:hover { color: var(--azul-500); background: rgba(41, 112, 168, .09); }
.ojo:focus-visible { outline: 2px solid var(--azul-400); outline-offset: 2px; }

/* ---------- Botón animado ---------- */

.boton {
  position: relative;
  width: 100%;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  overflow: hidden;
  font-family: var(--fuente);
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(120deg, var(--azul-700), var(--azul-500) 55%, var(--azul-400));
  border: none;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(27, 79, 138, .3);
  transition: transform .2s var(--curva), box-shadow .25s var(--curva);
}

.boton:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(27, 79, 138, .38);
}
.boton:active { transform: translateY(0) scale(.985); }
.boton:focus-visible { outline: 2px solid var(--azul-700); outline-offset: 3px; }

/* brillo que barre el botón al pasar el cursor */
.boton-brillo {
  position: absolute;
  top: 0;
  left: -60%;
  width: 45%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .38), transparent);
  transform: skewX(-18deg);
  transition: left .6s var(--curva);
}
.boton:hover .boton-brillo { left: 115%; }

.boton-texto, .boton-flecha {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  transition: transform .28s var(--curva), opacity .2s;
}
.boton:hover .boton-flecha { transform: translateX(4px); }

.boton-cargando {
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255, 255, 255, .35);
  border-top-color: #fff;
  border-radius: 50%;
  opacity: 0;
  animation: girar .7s linear infinite;
}
@keyframes girar { to { transform: rotate(360deg); } }

.boton.cargando { pointer-events: none; }
.boton.cargando .boton-texto,
.boton.cargando .boton-flecha { opacity: 0; transform: scale(.9); }
.boton.cargando .boton-cargando { opacity: 1; }

/* ---------- Alerta de error ---------- */

.alerta {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  padding: 12px 14px;
  font-size: 13.5px;
  font-weight: 500;
  color: #A3302F;
  background: #FDECEC;
  border-left: 3px solid #D0504E;
  border-radius: 0 8px 8px 0;
  animation: sacudir .45s var(--curva);
}

@keyframes sacudir {
  0%, 100% { transform: translateX(0); }
  22%      { transform: translateX(-6px); }
  55%      { transform: translateX(5px); }
  80%      { transform: translateX(-2px); }
}

.acceso-nota {
  margin: 26px 0 0;
  font-size: 12.5px;
  color: var(--gris);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 980px) {
  .acceso { grid-template-columns: 1fr; }
  .portada {
    min-height: 300px;
    padding: 34px 28px;
    order: -1;
  }
  .escena { min-height: 210px; }
  .barras3d { transform: scale(.9); }
  /* En pantallas angostas las tarjetas se montan sobre las barras:
     se deja solo el gráfico, que es lo que carga el mensaje visual. */
  .tarjeta-flotante { display: none; }
  .acceso-panel { padding: 40px 24px 56px; }
}

@media (max-width: 560px) {
  .portada { min-height: 240px; padding: 28px 22px; }
  .escena { min-height: 170px; }
  .barras3d { transform: scale(.74); }
  .portada-frase { font-size: 15px; }
  .saludo { font-size: 25px; }
  .saludo-texto { font-size: 14px; }
  .marca { width: 108px; margin-bottom: 26px; }
}

/* Respeta a quien prefiere menos movimiento */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .anillo-valor { stroke-dashoffset: 38; }
  .tendencia-trazo { stroke-dashoffset: 0; }
  .tendencia-relleno { opacity: 1; }
}