/* Glass iOS – Rediseño atractivo y moderno */
:root{
  --accent:#0a84ff; /* iOS blue */
  --accent-2:#5e5ce6; /* iOS indigo */
  --bg-1:#0ea5e9;
  --bg-2:#8b5cf6;
  --bg-3:#22c55e;
  --glass-bg: rgba(255,255,255,.22);
  --glass-stroke: rgba(255,255,255,.45);
  --glass-inner: rgba(255,255,255,.35);
  --glass-blur: 18px;
  --radius: 20px;
  --shadow: 0 20px 40px rgba(14, 21, 47, .18);
  --font: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Ubuntu,"Helvetica Neue",Arial,sans-serif;
}

/* Escena con blobs y grano sutil estilo iOS */
body{ margin:0; min-height:100vh; display:flex; align-items:center; justify-content:center; font-family:var(--font); position:relative; overflow:hidden; }
body.ios-glass{
  /* Fondo mucho más blanco: dejamos el color para los blobs animados */
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 55%, #eef2ff 100%);
}
/* Velo blanco sutil por encima de los blobs para que el fondo quede más blanquecino */
body.ios-glass::before{ content:""; position:fixed; inset:0; pointer-events:none; z-index:1; background: linear-gradient(to bottom right, rgba(255,255,255,.60), rgba(255,255,255,.46) 60%, rgba(255,255,255,.36) 100%); }
/* Fondo animado con blobs suaves */
.bg-anim{ position:fixed; inset:0; z-index:0; pointer-events:none; overflow:hidden; }
.bg-anim .blob{ position:absolute; width:52vw; height:52vw; min-width:520px; min-height:520px; border-radius:50%; filter: blur(110px); opacity:.34; will-change: transform; mix-blend-mode: screen; }
.bg-anim .b1{ background:#60a5fa; top:-12%; left:-10%; animation: blob1 12s ease-in-out infinite alternate; }
.bg-anim .b2{ background:#a78bfa; top:-16%; right:-12%; animation: blob2 14s ease-in-out infinite alternate; }
.bg-anim .b3{ background:#34d399; bottom:-12%; left:8%; opacity:.30; animation: blob3 16s ease-in-out infinite alternate; }
.bg-anim .b4{ background:#fbbf24; bottom:-18%; right:-10%; opacity:.26; animation: blob4 13s ease-in-out infinite alternate; }

@keyframes blob1{ 0%{ transform: translate(0,0) scale(1);} 50%{ transform: translate(10vw,6vh) scale(1.08);} 100%{ transform: translate(6vw,-8vh) scale(.96);} }
@keyframes blob2{ 0%{ transform: translate(0,0) scale(1);} 50%{ transform: translate(-8vw,8vh) scale(1.12);} 100%{ transform: translate(-14vw,-6vh) scale(.94);} }
@keyframes blob3{ 0%{ transform: translate(0,0) scale(1);} 50%{ transform: translate(12vw,-6vh) scale(1.06);} 100%{ transform: translate(-6vw,4vh) scale(1);} }
@keyframes blob4{ 0%{ transform: translate(0,0) scale(1);} 50%{ transform: translate(-8vw,-8vh) scale(1.04);} 100%{ transform: translate(6vw,6vh) scale(.98);} }
/* Grano sutil */
body.ios-glass::after{
  content:""; position:fixed; inset:0; pointer-events:none; opacity:.07; mix-blend-mode:overlay; z-index:2;
  background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="160" height="160" viewBox="0 0 160 160"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.85" numOctaves="3" stitchTiles="stitch"/></filter><rect width="100%" height="100%" filter="url(%23n)" opacity="0.35"/></svg>');
}

/* Tarjeta vidrio pulido */
.login-card{
  width:100%; max-width:420px; padding:2.2rem 1.8rem; text-align:center;
  background:
    linear-gradient( to bottom right, rgba(255,255,255,.55), rgba(255,255,255,.28) );
  border:1px solid var(--glass-stroke);
  border-radius: calc(var(--radius) + 2px);
  box-shadow: var(--shadow), 0 0 0 1px rgba(255,255,255,.25) inset;
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(var(--glass-blur));
  position:relative; isolation:isolate; animation:glass-in .55s ease both;
}
/* Asegurar que la tarjeta queda por encima del fondo y velos */
.login-card{ z-index:3; }
.login-card::before{ /* brillo superior */
  content:""; position:absolute; inset:0; border-radius: inherit; pointer-events:none;
  background: linear-gradient( to bottom, rgba(255,255,255,.45), rgba(255,255,255,0) 40%);
  mix-blend-mode: screen; opacity:.9;
}
@keyframes glass-in{ from{opacity:0; transform:translateY(18px) scale(.98);} to{opacity:1; transform:translateY(0) scale(1);} }

/* Identidad visual */
.login-logo{ max-width:84px; margin-bottom:.9rem; filter: drop-shadow(0 6px 16px rgba(0,0,0,.12)); }
.login-title{ font-weight:700; font-size:1.5rem; letter-spacing:.2px; margin-bottom:.25rem; }
.login-subtitle{ color:#475569; font-size:.95rem; margin-bottom:1.6rem; }

/* Inputs */
.login-card .form-control{
  border:1px solid rgba(15,23,42,.08); border-radius:14px; padding:.9rem 1rem; background:rgba(255,255,255,.9); color:#0f172a;
  transition: border .25s, box-shadow .25s, background .25s;
}
.login-card .form-control:focus{
  background:#fff; border-color: rgba(10,132,255,.45);
  box-shadow: 0 0 0 6px rgba(10,132,255,.18);
  outline: none;
}
.form-label{ font-weight:600; color:#0f172a; display:flex; align-items:center; gap:.45rem; }
.login-card .mb-3, .login-card .mb-4{ margin-bottom:1.1rem !important; }

/* Botón con glow */
.btn-login{
  width:100%; padding:.95rem; border:none; border-radius:14px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color:#fff; font-weight:700; letter-spacing:.3px; font-size:1rem;
  box-shadow: 0 10px 24px rgba(10,132,255,.28), 0 2px 0 rgba(255,255,255,.25) inset;
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}
.btn-login:hover{ transform: translateY(-2px); filter: saturate(1.05);
  box-shadow: 0 16px 30px rgba(94,92,230,.32), 0 2px 0 rgba(255,255,255,.25) inset; }
.btn-login:active{ transform: translateY(0); box-shadow: 0 8px 18px rgba(10,132,255,.22); }

/* Modales pulidos */
.modal-content{ border:none; border-radius:18px; -webkit-backdrop-filter: blur(22px); backdrop-filter: blur(22px);
  background: linear-gradient( to bottom right, rgba(255,255,255,.78), rgba(255,255,255,.62) );
  box-shadow: 0 20px 40px rgba(2,6,23,.25); text-align:center; padding:2rem; }
.modal-body i{ font-size:3rem; margin-bottom:1rem; }
#modalLoginExito .modal-body i{ color:#34c759; } #modalErrorLogin .modal-body i{ color:#ff3b30; }

/* Pequeños detalles */
@media (max-width:420px){ .login-card{ margin: 0 14px; padding: 1.8rem 1.2rem; } }

/* Accesibilidad: reducir animaciones */
@media (prefers-reduced-motion: reduce){
  .login-card{ animation:none; }
  .btn-login{ transition:none; }
  .bg-anim .blob{ animation:none; }
}

/* Overlay de carga (glass) */
.loading-overlay{ position:fixed; inset:0; background:rgba(255,255,255,.55); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); display:flex; align-items:center; justify-content:center; z-index:2050; opacity:0; pointer-events:none; transition: opacity .25s ease; }
.loading-overlay.show{ opacity:1; pointer-events:auto; }
.loading-card{ background: linear-gradient( to bottom right, rgba(255,255,255,.85), rgba(255,255,255,.7) ); border:1px solid rgba(0,0,0,.06); border-radius:18px; padding:22px 26px; text-align:center; box-shadow:0 18px 40px rgba(0,0,0,.18); }
.loading-card .spinner-border{ width:2.25rem; height:2.25rem; border-width:.25rem; color: var(--accent); }

/* ===== Página de salir (reutiliza tarjeta de login) ===== */
.logout-title{ font-weight:700; font-size:1.35rem; margin:0 0 .25rem; }
.logout-sub{ color:#475569; margin:0 0 1.25rem; }
.logout-actions{ display:flex; gap:12px; }
.btn-ghost{ flex:1; padding:.85rem; border-radius:12px; border:1px solid rgba(0,0,0,.08); background:rgba(255,255,255,.6); color:#111; font-weight:600; cursor:pointer; }
.btn-solid{ flex:1; padding:.95rem; border-radius:12px; border:none; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color:#fff; font-weight:700; box-shadow: 0 10px 24px rgba(10,132,255,.28); cursor:pointer; }
.btn-ghost:hover{ background:rgba(255,255,255,.8); }
.btn-solid:hover{ filter: saturate(1.05); box-shadow: 0 16px 30px rgba(94,92,230,.32); }