:root{
  --bg0: #040207;
  --bg1: #070312;
  --navy: #0b1b2b;

  --wine: #7b0f1f;     /* del logo */
  --wine2:#a0182b;
  --gold: #d8b27a;     /* dorado del marco */
  --text: #f5f2f7;
  --muted: rgba(245,242,247,.78);

  --card: rgba(255,255,255,.075);
  --border: rgba(255,255,255,.12);
  --shadow: 0 22px 70px rgba(0,0,0,.58);
  --radius: 24px;

  --focusRing: rgba(216,178,122,.20);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }

body{
  margin:0;
  font-family: Montserrat, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  color: var(--text);
  background:
    radial-gradient(1200px 700px at 12% 18%, rgba(123,15,31,.35), transparent 60%),
    radial-gradient(900px 600px at 65% 35%, rgba(11,27,43,.52), transparent 62%),
    linear-gradient(120deg, var(--bg1), var(--bg0) 60%, #020105);
  overflow-x:hidden;
}

.auth{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding: clamp(18px, 3vw, 36px);
  position:relative;
}

/* Fondo animado (más rápido) */
.auth__bg{
  position:fixed;
  inset:-25%;
  pointer-events:none;
  z-index:0;
  filter:saturate(1.08);
}

.auth__bg::before,
.auth__bg::after{
  content:"";
  position:absolute;
  width: 900px;
  height: 900px;
  border-radius: 40% 60% 55% 45% / 45% 45% 55% 55%;
  filter: blur(26px);
  opacity:.58;
  transform: translate3d(0,0,0);
}

.auth__bg::before{
  left:-120px;
  top:-200px;
  background:
    radial-gradient(circle at 30% 30%, rgba(216,178,122,.26), transparent 58%),
    radial-gradient(circle at 55% 45%, rgba(160,24,43,.44), transparent 60%),
    radial-gradient(circle at 70% 70%, rgba(11,27,43,.30), transparent 62%);
  animation: blobA 8.5s ease-in-out infinite;
}

.auth__bg::after{
  right:-240px;
  bottom:-300px;
  width: 980px;
  height: 980px;
  background:
    radial-gradient(circle at 40% 40%, rgba(216,178,122,.22), transparent 60%),
    radial-gradient(circle at 55% 50%, rgba(123,15,31,.40), transparent 62%),
    radial-gradient(circle at 70% 70%, rgba(11,27,43,.34), transparent 64%);
  animation: blobB 9.5s ease-in-out infinite;
}

@keyframes blobA{
  0%   { transform: translate(-10px, 0px) rotate(0deg) scale(1); }
  50%  { transform: translate(110px, 70px) rotate(16deg) scale(1.08); }
  100% { transform: translate(-10px, 0px) rotate(0deg) scale(1); }
}
@keyframes blobB{
  0%   { transform: translate(0px, 0px) rotate(0deg) scale(1); }
  50%  { transform: translate(-130px, -85px) rotate(-14deg) scale(1.06); }
  100% { transform: translate(0px, 0px) rotate(0deg) scale(1); }
}

/* Card */
.card{
  width:min(640px, 95vw);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.04));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  position:relative;
  z-index:1;
  padding: clamp(22px, 3.2vw, 36px);
}

/* Badge */
.badge{
  display:inline-flex;
  align-items:center;
  font-size: clamp(12px, 1.25vw, 14px);
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.22);
  color: rgba(245,242,247,.86);
}

.brand{
  display:flex;
  align-items:center;
  gap: clamp(14px, 2.4vw, 18px);
  margin-top: clamp(14px, 2.3vw, 20px);
}

.brand__logo{
  width: clamp(62px, 7vw, 96px);
  height:auto;
  display:block;
  filter: drop-shadow(0 14px 28px rgba(0,0,0,.38));
}

.brand__title{
  margin:0;
  font-weight: 800;
  letter-spacing: .8px;
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.12;
}

.brand__sub{
  margin: 6px 0 0;
  color: var(--muted);
  font-size: clamp(13px, 1.45vw, 16px);
  font-weight: 600;
}

/* Form */
.form{
  display:grid;
  gap: clamp(12px, 1.9vw, 16px);
  margin-top: clamp(12px, 2vw, 16px);
}

.field label{
  display:block;
  margin: 0 0 8px;
  font-size: clamp(13px, 1.45vw, 16px);
  font-weight: 700;
  color: rgba(245,242,247,.88);
}

.field input{
  width:100%;
  padding: clamp(13px, 1.9vw, 16px) clamp(14px, 2vw, 16px);
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.30);
  color: var(--text);
  outline: none;
  font-size: clamp(14px, 1.55vw, 16px);
  transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
}

.field input::placeholder{ color: rgba(245,242,247,.42); }

/* Focus elegante (sin “hover feo”) */
.field input:focus{
  border-color: rgba(216,178,122,.55);
  box-shadow:
    0 0 0 5px var(--focusRing),
    0 10px 30px rgba(0,0,0,.25);
  background: rgba(0,0,0,.22);
}

/* Botón de un solo color */
.btn{
  width:100%;
  padding: clamp(13px, 1.9vw, 16px);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 16px;
  cursor:pointer;
  font-weight: 800;
  font-size: clamp(14px, 1.55vw, 16px);
  letter-spacing: .4px;
  color: rgba(255,255,255,.92);

  background: var(--wine2);
  box-shadow: 0 16px 34px rgba(160,24,43,.22);
  transition: transform .12s ease, filter .12s ease, box-shadow .12s ease;
}

.btn:hover{
  filter: brightness(1.04);
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(160,24,43,.26);
}
.btn:active{ transform: translateY(0px); }

.alert{
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(160,24,43,.14);
  padding: 12px 14px;
  border-radius: 16px;
  font-size: clamp(13px, 1.45vw, 15px);
}

/* Footer centrado */
.card__footer{
  margin-top: clamp(14px, 2vw, 18px);
  text-align:center;
  opacity:.82;
}

.footnote{
  display:block;
  color: rgba(245,242,247,.66);
  font-size: clamp(11px, 1.2vw, 13px);
  font-weight: 600;
}

/* Mobile */
@media (max-width:520px){
  .brand{ align-items:flex-start; }
  .brand__logo{ width: 64px; }
}