:root{
  --blue:#2d8ee8;
  --blue-dark:#1f7fd6;
  --celeste:#43a7f6;
  --navy:#1c2546;
  --navy-2:#13203f;
  --ink:#2a2f37;
  --muted:#8b929d;
  --line:#e3e7ee;
  --field:#f3f6fa;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Roboto',Arial,sans-serif;color:var(--ink);
  min-height:100vh;background:#eef2f7;
}
a{text-decoration:none;color:inherit}

/* ===== Split a pantalla completa ===== */
.auth-card{
  width:100%;min-height:100vh;
  display:grid;grid-template-columns:1.1fr 1fr;
  background:#fff;overflow:hidden;
  animation:rise .5s ease both;
}
@keyframes rise{from{opacity:0}to{opacity:1}}

/* ===== Brand panel ===== */
.auth-brand{
  position:relative;color:#fff;padding:46px 44px;
  display:flex;flex-direction:column;
  border-top:5px solid var(--celeste);border-bottom:5px solid var(--celeste);
  background:
    linear-gradient(150deg,rgba(28,37,70,.94),rgba(33,72,142,.86) 55%,rgba(45,142,232,.82)),
    url("../img/servers-bg.png") center/cover no-repeat;
}
.auth-brand::after{           /* textura de puntos sutil */
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.06) 1.2px,transparent 1.2px);
  background-size:20px 20px;
}
.brand-logo{width:188px;margin-bottom:auto;position:relative;z-index:1}
.brand-logo img{width:100%;display:block}
.brand-copy{position:relative;z-index:1;margin-top:30px}
.brand-eyebrow{
  font-family:'Raleway';font-weight:700;letter-spacing:3px;
  font-size:13px;text-transform:uppercase;color:var(--celeste);margin-bottom:12px;
}
.brand-copy h1{
  font-family:'Raleway';font-weight:700;font-size:32px;line-height:1.15;margin-bottom:14px;
}
.brand-copy p{font-size:15px;line-height:1.6;color:#d8e3f3;max-width:340px;margin-bottom:26px}
.brand-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.brand-list li{display:flex;align-items:center;gap:13px;font-size:14.5px;color:#eaf2fd}
.brand-list i{
  width:34px;height:34px;flex-shrink:0;border-radius:9px;
  background:rgba(255,255,255,.12);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:15px;
}

/* ===== Form panel ===== */
.auth-form{padding:52px;display:flex;flex-direction:column;justify-content:center}
.auth-form > *{width:100%;max-width:410px;margin-left:auto;margin-right:auto}
.form-head{margin-bottom:30px}
.form-head .kicker{font-family:'Raleway';font-weight:600;color:var(--blue);letter-spacing:1px;font-size:13px;text-transform:uppercase}
.form-head h2{font-family:'Raleway';font-weight:700;font-size:27px;color:var(--ink);margin:6px 0 6px}
.form-head p{color:var(--muted);font-size:14.5px}

.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;color:#4a5160;margin-bottom:8px}
.field-input{position:relative;display:flex;align-items:center}
.field-input>i{position:absolute;left:15px;color:#9aa2af;font-size:15px;pointer-events:none}
.field-input input{
  width:100%;height:50px;background:var(--field);
  border:1.6px solid transparent;border-radius:10px;
  padding:0 46px;font-family:inherit;font-size:15px;color:var(--ink);
  transition:border-color .18s,background .18s,box-shadow .18s;
}
.field-input input::placeholder{color:#aab1bc}
.field-input input:focus{
  outline:none;background:#fff;border-color:var(--blue);
  box-shadow:0 0 0 4px rgba(45,142,232,.14);
}
.toggle-pass{
  position:absolute;right:8px;width:34px;height:34px;border:none;background:none;
  color:#9aa2af;cursor:pointer;display:flex;align-items:center;justify-content:center;
  border-radius:8px;transition:color .18s,background .18s;
}
.toggle-pass:hover{color:var(--blue);background:rgba(45,142,232,.08)}

.form-row{display:flex;align-items:center;justify-content:space-between;margin:6px 0 26px;font-size:13.5px}
.remember{display:flex;align-items:center;gap:9px;cursor:pointer;color:#4a5160;user-select:none}
.remember input{position:absolute;opacity:0;width:0;height:0}
.remember .box{
  width:19px;height:19px;border-radius:5px;border:1.8px solid #c4ccd6;
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:11px;
  transition:.18s;
}
.remember input:checked + .box{background:var(--blue);border-color:var(--blue)}
.remember input:focus-visible + .box{box-shadow:0 0 0 3px rgba(45,142,232,.3)}
.forgot{color:var(--blue);font-weight:600}
.forgot:hover{text-decoration:underline}

.btn-login{
  width:100%;padding:16px 24px;line-height:1.2;
  border:none;border-radius:10px;cursor:pointer;
  background:linear-gradient(135deg,var(--blue),#2f74d6);color:#fff;
  font-family:'Roboto';font-weight:700;font-size:15.5px;letter-spacing:.3px;
  display:flex;align-items:center;justify-content:center;gap:10px;
  box-shadow:0 12px 26px rgba(45,142,232,.36);
  transition:transform .18s,box-shadow .18s,filter .18s;
}
.btn-login i{font-size:15px;line-height:1}
.btn-login:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(45,142,232,.46)}
.btn-login:active{transform:translateY(0)}
.btn-login:focus-visible{outline:3px solid rgba(45,142,232,.5);outline-offset:2px}

.form-note{
  margin-top:14px;min-height:20px;font-size:13.5px;text-align:center;
}
.form-note.error{color:#d83a3a}
.form-note.ok{color:#1f9d55}

.form-foot{
  margin-top:30px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--muted);
}
.form-foot a{color:var(--blue);font-weight:600;display:inline-flex;align-items:center;gap:7px}
.form-foot a:hover{text-decoration:underline}

/* ===== Responsive ===== */
@media(max-width:820px){
  .auth-card{grid-template-columns:1fr;min-height:0}
  .auth-brand{padding:40px 30px 44px;border-bottom:none;border-top:5px solid var(--celeste)}
  .brand-logo{width:150px;margin-bottom:22px}
  .brand-copy{margin-top:0}
  .brand-copy h1{font-size:25px}
  .brand-list{display:none}
  .auth-form{padding:34px 28px}
}
@media(prefers-reduced-motion:reduce){
  .auth-card{animation:none}
  .btn-login:hover{transform:none}
}