:root{
  --beige:#f5d6a0; --beige-oscuro:#d4a373; --marron-claro:#a47148; --marron:#6b3e2e; --negro:#1b1b1b;
}

/* Animación de carga inicial */
#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(135deg, var(--beige) 0%, #f0c78d 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#loading-screen.loaded {
  opacity: 0;
  visibility: hidden;
}

.loading-paw {
  width: 50px;
  height: 50px;
  animation: pawGrowSpin 1.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  filter: drop-shadow(0 4px 8px rgba(107,62,46,.3));
}

@keyframes pawGrowSpin {
  0% {
    transform: scale(1) rotate(0deg);
    opacity: 1;
  }
  50% {
    transform: scale(10) rotate(180deg);
    opacity: 0.9;
  }
  100% {
    transform: scale(40) rotate(360deg);
    opacity: 0.3;
  }
}

/* Página sin scroll */
html, body { height:100%; }
body{
  margin:0; font-family:"Poppins",sans-serif; 
  background: linear-gradient(135deg, var(--beige) 0%, #f0c78d 100%);
  display:flex; align-items:center; justify-content:center; overflow:hidden;
}

/* Fondo de patitas */
.background-paws{ position:fixed; inset:0; z-index:0; pointer-events:none }
.paw-bg{ 
  position:absolute; width:50px; opacity:.4; transform-origin:center; 
  animation:float 8s ease-in-out infinite;
  filter: drop-shadow(0 2px 4px rgba(107,62,46,.2));
}
@keyframes float{
  0%{transform:translate(0,0) rotate(0)}
  25%{transform:translate(10px,-10px) rotate(10deg)}
  50%{transform:translate(0,-20px) rotate(-10deg)}
  75%{transform:translate(-10px,-10px) rotate(10deg)}
  100%{transform:translate(0,0) rotate(0)}
}

/* Caja de login (vista 1) */
.login-box{
  width:460px; padding:35px; 
  background: linear-gradient(145deg, var(--beige-oscuro) 0%, #c89a5e 100%);
  border-radius:24px;
  box-shadow:0 20px 60px rgba(0,0,0,.25), 0 0 0 1px rgba(255,255,255,.2) inset;
  text-align:center; z-index:1; position:relative;
  backdrop-filter: blur(10px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.login-box:hover{
  transform: translateY(-2px);
  box-shadow:0 25px 70px rgba(0,0,0,.3), 0 0 0 1px rgba(255,255,255,.3) inset;
}
.login-box h2{ 
  color:var(--marron); font-weight:700; font-size:28px;
  text-shadow: 0 2px 4px rgba(0,0,0,.1);
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .login-box{
    width: 90%;
    max-width: 400px;
    padding: 28px;
  }
  .login-box h2{ font-size: 24px; }
}

/* Switch de tipo de login */
.mode-switch-login{
  background: rgba(255,255,255,.5);
  backdrop-filter: blur(10px);
  margin:0 auto 24px; width:fit-content;
  padding:5px; border-radius:999px; display:inline-flex; gap:4px;
  box-shadow: 0 4px 12px rgba(0,0,0,.1), 0 0 0 1px rgba(255,255,255,.4) inset;
}
.mode-switch-login .pill-login{
  border:0; background:transparent; padding:10px 16px; border-radius:999px; 
  font-weight:600; cursor:pointer; transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
  color:var(--negro);
  font-size:13px; position:relative;
}
.mode-switch-login .pill-login::before{
  content:''; position:absolute; inset:0; border-radius:999px;
  background:rgba(255,255,255,.5); opacity:0; transition:opacity 0.3s ease;
}
.mode-switch-login .pill-login:hover::before{ opacity:1; }
.mode-switch-login .pill-login:hover{ transform:translateY(-1px); }
.mode-switch-login .pill-login.active{ 
  background:var(--marron-claro); color:#fff;
  box-shadow: 0 4px 12px rgba(107,62,46,.3);
  transform:scale(1.02);
}

/* Inputs mejorados */
.form-control{ 
  background:rgba(255,255,255,.7); 
  border:2px solid transparent; 
  border-radius:12px; 
  color:var(--negro);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
  font-weight: 500;
}
.form-control:hover{ 
  background:rgba(255,255,255,.85);
  box-shadow: 0 4px 12px rgba(0,0,0,.12);
}
.form-control:focus{ 
  border:2px solid var(--marron); 
  box-shadow: 0 4px 16px rgba(107,62,46,.2), 0 0 0 4px rgba(107,62,46,.1);
  background:rgba(255,255,255,.95);
  transform: translateY(-1px);
}
.form-floating > label{
  color: var(--negro);
  font-weight: 500;
  transition: all 0.3s ease;
}
.form-floating:focus-within > label{
  color: var(--marron);
  font-weight: 600;
}
select.form-control{ 
  appearance:none; 
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236b3e2e' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position:right 12px center; 
  padding-right:35px;
}

/* Botones mejorados */
.btn-primary,.btn-success{ 
  background: linear-gradient(135deg, var(--marron-claro) 0%, var(--marron) 100%);
  border:none; 
  border-radius:12px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 16px rgba(107,62,46,.3);
  position: relative;
  overflow: hidden;
}
.btn-primary::before,.btn-success::before{
  content:''; position:absolute; inset:0;
  background: linear-gradient(135deg, rgba(255,255,255,.2) 0%, transparent 100%);
  opacity:0; transition:opacity 0.3s ease;
}
.btn-primary:hover,.btn-success:hover{ 
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(107,62,46,.4);
}
.btn-primary:hover::before,.btn-success:hover::before{ opacity:1; }
.btn-primary:active,.btn-success:active{ 
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(107,62,46,.3);
}

/* Texto de cambio */
.toggle-text{ 
  font-size:14px; 
  color:var(--negro);
  font-weight: 500;
}
.toggle-text span{ 
  color:var(--marron); 
  font-weight:700; 
  cursor:pointer;
  transition: all 0.3s ease;
  display: inline-block;
  position: relative;
}
.toggle-text span::after{
  content:''; position:absolute; bottom:-2px; left:0; right:0;
  height:2px; background:var(--marron); transform:scaleX(0);
  transition:transform 0.3s ease;
}
.toggle-text span:hover{
  color:var(--marron-claro);
  transform: translateY(-1px);
}
.toggle-text span:hover::after{
  transform:scaleX(1);
}

/* ===== Registro (vista 2) ===== */
.register-stage{ 
  width:min(1200px,95vw); z-index:1; text-align:center;
}
.mode-switch{
  background: linear-gradient(145deg, var(--beige-oscuro) 0%, #c89a5e 100%);
  margin:0 auto 20px; width:fit-content;
  padding:6px; border-radius:999px; 
  box-shadow:0 8px 24px rgba(0,0,0,.15), 0 0 0 1px rgba(255,255,255,.2) inset;
  display:inline-flex; gap:2px;
  backdrop-filter: blur(10px);
}
.mode-switch .pill{
  border:0; background:transparent; padding:12px 20px; border-radius:999px; 
  font-weight:600;
  cursor:pointer; transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
  color:var(--negro);
  position:relative;
}
.mode-switch .pill::before{
  content:''; position:absolute; inset:0; border-radius:999px;
  background:rgba(255,255,255,.3); opacity:0; transition:opacity 0.3s ease;
}
.mode-switch .pill:hover::before{ opacity:1; }
.mode-switch .pill:hover{ transform:translateY(-2px); }
.mode-switch .pill.active{ 
  background:rgba(255,255,255,.85); 
  color:var(--marron);
  box-shadow: 0 4px 16px rgba(0,0,0,.2);
  transform:scale(1.05);
}

/* Contenedor centrado para las cards */
.tri-forms{
  display:flex; justify-content:center; align-items:start; 
  max-height:calc(100vh - 160px);
}

/* Animación de aparición para las cards */
@keyframes fadeInUp{
  from{ opacity:0; transform:translateY(30px) scale(0.95); }
  to{ opacity:1; transform:translateY(0) scale(1); }
}

/* Responsive para móviles */
@media (max-width: 768px) {
  .tri-forms{
    max-width: 100%;
    padding: 0 10px;
  }
  
  .card-reg{
    max-width: 100%;
    width: 100%;
  }
  
  .register-stage{
    width: 100%;
    padding: 0 10px;
  }
  
  .mode-switch{
    flex-direction: column;
    width: 100%;
    max-width: 320px;
  }
  
  .mode-switch .pill{
    width: 100%;
    text-align: center;
  }
  
  .mode-switch .pill.active{ 
    background:rgba(255,255,255,.85) !important; 
    color:var(--marron) !important;
    box-shadow: 0 4px 16px rgba(0,0,0,.2) !important;
  }
  
  .mode-switch-login{
    flex-direction: column;
    width: 100%;
    max-width: 320px;
  }
  
  .mode-switch-login .pill-login{
    width: 100%;
    text-align: center;
  }
  
  .mode-switch-login .pill-login.active{ 
    background:var(--marron-claro) !important; 
    color:#fff !important;
    box-shadow: 0 4px 12px rgba(107,62,46,.3) !important;
  }
  
  /* Desactivar efectos hover en móvil para evitar problemas táctiles */
  .mode-switch .pill:hover::before,
  .mode-switch-login .pill-login:hover::before{
    opacity: 0 !important;
  }
  
  .mode-switch .pill:hover,
  .mode-switch-login .pill-login:hover{
    transform: none !important;
  }
  
  /* Pero mantener el estilo activo siempre visible */
  .mode-switch .pill.active,
  .mode-switch-login .pill-login.active{
    transform: none !important;
  }
}

/* Cards mejoradas */
.card-reg{
  background: linear-gradient(145deg, var(--beige-oscuro) 0%, #c89a5e 100%);
  border-radius:20px; 
  padding:24px; 
  box-shadow:0 20px 60px rgba(0,0,0,.25), 0 0 0 1px rgba(255,255,255,.2) inset;
  max-height:calc(100vh - 180px); 
  overflow-y:auto; 
  width:480px; 
  max-width:90vw;
  animation: fadeInUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position:relative;
  backdrop-filter: blur(10px);
}
.card-reg::before{
  content:''; position:absolute; top:0; left:0; right:0;
  height:4px; background: linear-gradient(90deg, var(--marron-claro), var(--marron), var(--marron-claro));
  border-radius:20px 20px 0 0;
}
.card-title{ 
  color:var(--marron); 
  font-weight:700; 
  margin-bottom:18px;
  font-size: 20px;
  text-shadow: 0 2px 4px rgba(0,0,0,.1);
}

/* Grids internos en 2 columnas para compactar altura */
.two-col .grid{
  display:grid; grid-template-columns:repeat(2, minmax(0,1fr)); gap:12px;
}
.two-col .grid .form-floating{ min-width:0; margin-bottom:0 }
.two-col .grid .wide{ grid-column:1 / -1 }

/* Reducir tamaños de inputs para compactar */
.card-reg .form-control{ font-size:14px; padding:11px 13px; }
.card-reg .form-floating > label{ font-size:13px; padding:12px 13px; }
.card-reg .btn{ font-size:15px; padding:12px; margin-top:16px; }

/* Scrollbar personalizado para las cards */
.card-reg::-webkit-scrollbar{ width:8px }
.card-reg::-webkit-scrollbar-track{ 
  background:rgba(0,0,0,.08); 
  border-radius:10px;
  margin:4px;
}
.card-reg::-webkit-scrollbar-thumb{ 
  background: linear-gradient(180deg, var(--marron-claro), var(--marron));
  border-radius:10px;
  box-shadow: 0 2px 6px rgba(0,0,0,.2);
}
.card-reg::-webkit-scrollbar-thumb:hover{ 
  background: linear-gradient(180deg, var(--marron), var(--marron-claro));
}

/* Efecto de enfoque en las cards */
.card-reg:hover{
  box-shadow:0 25px 70px rgba(0,0,0,.3), 0 0 0 1px rgba(255,255,255,.3) inset;
}