:root{
  --verde1:#2e8b57;
  --verde2:#276749;
  --verde3:#1e4d37;
  --fondo1:#f5fff4;
  --fondo2:#d4f1d2;
  --card:#ffffff;
  --ink:#1f3125;
  --accent:#2e8b57;
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  font-family:'Nunito',sans-serif;
  background:linear-gradient(160deg,var(--fondo1),var(--fondo2));
  display:grid;
  place-items:center;
  overflow-x:hidden;
  overflow-y:auto;
}

/* Fondo con hojas flotando */
.hojas{
  position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:
    radial-gradient(ellipse 10px 6px at 20% 10%,rgba(46,139,87,.4) 0 40%,transparent 41%),
    radial-gradient(ellipse 12px 8px at 80% 30%,rgba(46,139,87,.3) 0 40%,transparent 41%),
    radial-gradient(ellipse 10px 6px at 40% 80%,rgba(46,139,87,.25) 0 40%,transparent 41%);
  background-size:200px 200px;
  animation: hojasMove 20s linear infinite;
}
@keyframes hojasMove{
  from{background-position:0 0,100px 200px,200px 400px;}
  to{background-position:0 -400px,100px -200px,200px 0;}
}

.card{
  width:min(1100px,92vw);
  display:grid;
  grid-template-columns:1.1fr 1fr;
  background:var(--card);
  border-radius:26px;
  box-shadow:0 26px 80px rgba(0,0,0,.1);
  overflow:hidden;
  z-index:1;
}

.brand{
  background:radial-gradient(120% 120% at 10% 10%,#6fcf97 0%,var(--verde1) 50%,var(--verde3) 100%);
  color:#fff;
  padding:44px 36px;
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
}
.brand::after{
  content:""; position:absolute; inset:auto -20% -38% -20%;
  background:radial-gradient(circle at 40% 70%,rgba(255,255,255,.2) 0 30%,transparent 31%);
  filter:blur(20px);
}
.brand-inner{text-align:center;}
.brand-inner img{
  width:min(420px,80%);
  height:auto;
  display:block;
  margin:0 auto 14px;
  filter:drop-shadow(0 10px 20px rgba(0,0,0,.35));
}
.brand p{
  font-weight:700; font-size:1.05rem;
  text-shadow:0 2px 8px rgba(0,0,0,.25);
}

.form{
  padding:40px 34px;
  display:flex;
  flex-direction:column;
  gap:18px;
  background:linear-gradient(180deg,#fff,#f6fff4);
}
.form h2{margin:4px 0 6px;font-size:1.8rem;}
.sub{color:#47624f;font-size:.95rem;}

.input{
  display:flex;align-items:center;gap:10px;
  background:#fff;border:1px solid #c6e2c0;
  border-radius:14px;padding:12px 14px;
  transition:all .2s;
}
.input:focus-within{
  border-color:#7fc99b;
  box-shadow:0 0 0 4px #7fc99b40;
}
.input input,
.input select{
  width:100%;border:none;outline:none;background:transparent;
  font-size:1rem;color:var(--ink);
}

.btn{
  background:linear-gradient(135deg,var(--verde1),var(--verde2));
  color:#fff;font-weight:800;
  padding:12px 16px;border:none;border-radius:14px;
  cursor:pointer;transition:.2s;
  box-shadow:0 12px 26px rgba(46,139,87,.3);
}
.btn:hover{filter:brightness(1.05);transform:translateY(-2px);}

a{color:var(--verde2);text-decoration:none;font-weight:600;}
a:hover{text-decoration:underline;}
.footer-note{text-align:center;font-size:.85rem;color:#47624f;}
.form>.row{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;align-items:center}
.eye{border:0;background:transparent;color:var(--verde2);font-weight:700;min-height:32px;cursor:pointer}

@media (max-width:767px){
  body{display:block;padding:16px;min-height:100%;height:auto}
  .card{width:100%;grid-template-columns:1fr;border-radius:18px;margin:auto}
  .brand{padding:22px 18px}
  .brand-inner img{width:min(230px,70%);margin-bottom:6px}
  .brand p{margin:.25rem 0;font-size:.95rem}
  .form{padding:24px 18px;gap:14px}
  .form h2{font-size:1.45rem}
  .input,.btn{min-height:48px}
  .input input,.input select{font-size:16px}
}

@media (max-width:380px){
  body{padding:8px}
  .brand{padding:16px 12px}
  .form{padding:20px 14px}
}

.alert-warn{
  background:#eaffed;border:1px solid #9fd8a8;color:#225e36;
  padding:10px 12px;border-radius:12px;
}