@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;600;700&family=Space+Mono:wght@400;700&display=swap');

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --brand:        #7C5CFC;
  --brand-light:  #a98bfd;
  --brand-glow:   rgba(124, 92, 252, 0.35);
  --bg:           #0d0b14;
  --surface:      rgba(255, 255, 255, 0.05);
  --surface-hover:rgba(255, 255, 255, 0.09);
  --border:       rgba(255, 255, 255, 0.10);
  --border-focus: rgba(124, 92, 252, 0.7);
  --text:         #f0ecff;
  --text-muted:   #8a82a0;
  --radius:       14px;
  --radius-sm:    8px;
  --transition:   0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: 'Sora', sans-serif;
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  overflow: hidden;
}

body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

body::before {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(124, 92, 252, 0.25) 0%, transparent 70%);
  top: -100px;
  left: -100px;
  animation: float1 8s ease-in-out infinite;
}

body::after {
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(100, 60, 220, 0.18) 0%, transparent 70%);
  bottom: -80px;
  right: -60px;
  animation: float2 10s ease-in-out infinite;
}

@keyframes float1 {
  0%, 100% { transform: translate(0, 0); }
  50%       { transform: translate(40px, 30px); }
}
@keyframes float2 {
  0%, 100% { transform: translate(0, 0); }
  50%       { transform: translate(-30px, -40px); }
}

/* ─── Caja exterior ─── */
.cajafuera {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  width: 100%;
  min-height: 100vh;
}

/* ─── Card principal ─── */
.formulariocaja {
  background: rgba(20, 16, 35, 0.75);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2rem;
  width: 100%;
  max-width: 420px;
  /* altura fija suficiente para que los dos formularios quepan */
  height: 580px;
  box-shadow:
    0 0 0 1px rgba(124, 92, 252, 0.08),
    0 24px 60px rgba(0, 0, 0, 0.5),
    0 0 60px var(--brand-glow);
  animation: fadeUp 0.5s ease both;
  position: relative;
  overflow: hidden;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Tabs de intercambio ─── */
.botondeintercambiar {
  position: relative;
  display: flex;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 4px;
  margin-bottom: 1.5rem;
  gap: 0;
}

/* Pill deslizante */
#btnvai {
  position: absolute;
  top: 4px;
  left: 4px;
  height: calc(100% - 8px);
  width: calc(50% - 4px);
  background: linear-gradient(135deg, var(--brand) 0%, #5a3fd6 100%);
  border-radius: 50px;
  transition: left 0.5s ease;
  box-shadow: 0 4px 16px var(--brand-glow);
  z-index: 0;
}

.botoncambiarcaja {
  flex: 1;
  position: relative;
  z-index: 1;
  background: transparent;
  border: none;
  border-radius: 50px;
  padding: 0.55rem 1rem;
  font-family: 'Sora', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition);
  letter-spacing: 0.02em;
}

.botoncambiarcaja:focus-visible {
  color: #fff;
  outline: none;
}

/* ─── Logo ─── */
.logovai {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

.logovai img {
  height: 52px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 12px var(--brand-glow));
}

/* ─── Formularios: se deslizan con left ─── */
.grupo-entradas {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  position: absolute;
  /* ancho = card - padding izq - padding der */
  width: calc(100% - 4rem);
  transition: left 0.5s ease;
  /* tope inferior para que el botón no quede cortado */
  padding-bottom: 1rem;
}

/* posición inicial */
#frmlogin     { left: 2rem; }
#frmregistrar { left: calc(100% + 2rem); }

.grupo-entradas b {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 0.6rem;
  margin-bottom: 0.15rem;
  display: block;
}

/* ─── Inputs ─── */
.cajaentradatexto,
.cajaentradarecaptcha {
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: 'Sora', sans-serif;
  font-size: 0.92rem;
  transition:
    border-color var(--transition),
    background var(--transition),
    box-shadow var(--transition);
  outline: none;
}

.cajaentradatexto::placeholder,
.cajaentradarecaptcha::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

.cajaentradatexto:hover,
.cajaentradarecaptcha:hover {
  background: var(--surface-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.cajaentradatexto:focus,
.cajaentradarecaptcha:focus {
  background: rgba(124, 92, 252, 0.07);
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(124, 92, 252, 0.15);
}

/* ─── CAPTCHA box ─── */
.fondorecaptcha {
  width: 100%;
  height: 52px;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  font-family: 'Space Mono', monospace;
  letter-spacing: 0.3em;
}

.fondorecaptcha:hover {
  background: var(--surface-hover);
  border-color: var(--brand-light);
  color: var(--brand-light);
}

/* ─── Botón enviar ─── */
.botonenviar,
button[name="btnregistrarx"] {
  width: 100%;
  padding: 0.8rem;
  margin-top: 1rem;
  background: linear-gradient(135deg, var(--brand) 0%, #5a3fd6 100%);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: 'Sora', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    filter var(--transition);
  box-shadow: 0 4px 20px var(--brand-glow);
}

.botonenviar:hover,
button[name="btnregistrarx"]:hover {
  filter: brightness(1.12);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--brand-glow);
}

.botonenviar:active,
button[name="btnregistrarx"]:active {
  transform: translateY(0);
  filter: brightness(0.95);
  box-shadow: 0 2px 10px var(--brand-glow);
}

/* ─── Responsive ─── */
@media (max-width: 440px) {
  .formulariocaja {
    padding: 1.4rem;
    border-radius: 18px;
    height: 560px;
  }
  .grupo-entradas {
    width: calc(100% - 2.8rem);
  }
  #frmlogin     { left: 1.4rem; }
  #frmregistrar { left: calc(100% + 1.4rem); }
}