/* ═══════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  font-family: 'Plus Jakarta Sans', 'Segoe UI', sans-serif;
  background-color: #fafaf8;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #111;
}

/* ═══════════════════════════════════════
   HEADER SESIÓN ACTIVA
═══════════════════════════════════════ */
.session-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: rgba(8, 22, 48, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,174,0,0.15);
  opacity: 0;
  transform: translateY(-100%);
  pointer-events: none;
  transition: opacity .3s, transform .3s;
}
.session-header.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.session-back {
  display: flex;
  align-items: center;
  gap: 7px;
  background: none;
  border: none;
  color: #ffae00;
  font-family: inherit;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .4px;
  cursor: pointer;
  padding: 0;
  transition: opacity .2s;
}
.session-back:hover { opacity: .7; }

.session-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .8rem;
  color: #adc0dc;
}
.session-user { color: #fff; font-weight: 600; }

/* ═══════════════════════════════════════
   CHIP LIVE
═══════════════════════════════════════ */
.chip-live {
  background: #e8173a;
  color: #fff;
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .8px;
  border-radius: 999px;
  padding: .18rem .5rem;
  vertical-align: middle;
}

/* ═══════════════════════════════════════
   FLECHA SALIR
═══════════════════════════════════════ */
.exit-arrow {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 40;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0,0,0,0.36);
  color: #fff;
  display: grid;
  place-items: center;
  text-decoration: none;
  transition: background .2s;
}
.exit-arrow:hover { background: rgba(0,0,0,0.56); }

/* ═══════════════════════════════════════
   STAGE (centra la card)
═══════════════════════════════════════ */
.stage {
  width: 100%;
  padding: 24px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

/* ═══════════════════════════════════════
   CARD PRINCIPAL (split layout)
═══════════════════════════════════════ */
.card {
  display: flex;
  width: min(100%, 880px);
  min-height: 520px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 10px 32px 80px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.07);
  transition: min-height .35s ease;
}
.card.card-tall { min-height: 620px; }

/* ═══════════════════════════════════════
   LADO IZQUIERDO: formularios
═══════════════════════════════════════ */
.forms-side {
  flex: 1;
  background: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px 44px;
  position: relative;
  min-width: 0;
}

/* ═══════════════════════════════════════
   PANELES (login / registro)
═══════════════════════════════════════ */
.pane {
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
  animation: none;
}

.pane-enter {
  animation: slideIn .32s cubic-bezier(.4,0,.2,1) forwards;
}
.pane-exit {
  animation: slideOut .18s ease forwards;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(18px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes slideOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(-14px); }
}

/* brand */
.pane-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
}
.brand-name {
  font-size: 1.05rem;
  font-weight: 800;
  color: #0b3460;
  letter-spacing: .3px;
}

.pane-title {
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 800;
  color: #0a2240;
  letter-spacing: -.3px;
  line-height: 1.15;
  margin-bottom: 6px;
}

.pane-sub {
  font-size: .85rem;
  color: #7a85a0;
  margin-bottom: 26px;
  line-height: 1.5;
}

/* botón "volver" registro */
.back-pane {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  color: #5f6a85;
  font-family: inherit;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .3px;
  cursor: pointer;
  padding: 0;
  transition: color .2s;
}
.back-pane:hover { color: #0a2240; }

/* ═══════════════════════════════════════
   FORMULARIO
═══════════════════════════════════════ */
.form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.field label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .7px;
  color: #8590ac;
  text-transform: uppercase;
}
.field input {
  height: 44px;
  border: 1.5px solid #e0e5f2;
  border-radius: 10px;
  padding: 0 14px;
  font-size: .9rem;
  font-family: inherit;
  color: #111;
  background: #f8f9fd;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.field input::placeholder { color: #b0b8cc; }
.field input:hover { border-color: #c5cde0; }
.field input:focus {
  outline: none;
  border-color: #ffae00;
  background: #fff;
  box-shadow: 0 0 0 3px rgba(255,174,0,.12);
}

.btn-main {
  height: 46px;
  border: none;
  border-radius: 10px;
  background: #ffae00;
  color: #1a0f00;
  font-size: .9rem;
  font-family: inherit;
  font-weight: 800;
  letter-spacing: .4px;
  cursor: pointer;
  margin-top: 4px;
  transition: background .2s, transform .15s, box-shadow .2s;
}
.btn-main:hover {
  background: #e39a00;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(255,174,0,.28);
}
.btn-main:active { transform: translateY(0); }

.switch-text {
  margin-top: 18px;
  font-size: .82rem;
  color: #8590ac;
  text-align: center;
}
.btn-link {
  background: none;
  border: none;
  color: #0b5ea8;
  font-family: inherit;
  font-size: inherit;
  font-weight: 700;
  cursor: pointer;
  padding: 0;
  transition: color .2s;
}
.btn-link:hover { color: #ffae00; }

/* ═══════════════════════════════════════
   LADO DERECHO: acento / ilustración
═══════════════════════════════════════ */
.accent-side {
  flex: 0 0 42%;
  background: linear-gradient(145deg, #1a3f7a 0%, #0d2349 55%, #111e3a 100%);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.accent-inner {
  position: relative;
  z-index: 2;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  text-align: center;
  width: 100%;
  height: 100%;
}

/* burbujas de fondo */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(48px);
  pointer-events: none;
}
.orb-1 {
  width: 200px; height: 200px;
  background: rgba(255,174,0,.14);
  top: -40px; right: -40px;
}
.orb-2 {
  width: 160px; height: 160px;
  background: rgba(26,90,180,.25);
  bottom: 0px; left: -30px;
}
.orb-3 {
  width: 100px; height: 100px;
  background: rgba(255,80,120,.1);
  bottom: 30%; right: 10%;
}

/* ilustración */
.illo {
  width: min(220px, 72%);
  height: auto;
  filter: drop-shadow(0 12px 32px rgba(0,0,0,0.3));
}

/* texto acento */
.accent-copy h2 {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -.2px;
  margin-bottom: 8px;
  transition: opacity .3s;
}
.accent-copy p {
  font-size: .82rem;
  color: rgba(200,215,240,.8);
  line-height: 1.6;
  max-width: 200px;
  margin: 0 auto;
  transition: opacity .3s;
}

/* ═══════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════ */

/* Tablet: oculta el panel derecho, centra el izquierdo */
@media (max-width: 700px) {
  .accent-side { display: none; }

  .card {
    width: min(100%, 420px);
    min-height: auto;
    border-radius: 20px;
  }

  .forms-side {
    padding: 36px 28px;
  }
}

/* Móvil pequeño */
@media (max-width: 400px) {
  .forms-side { padding: 28px 18px; }
  .pane-title { font-size: 1.5rem; }
}

/* Pantalla intermedia: ajuste de padding */
@media (min-width: 701px) and (max-width: 860px) {
  .forms-side { padding: 36px 28px; }
  .accent-side { flex: 0 0 38%; }
}