/* ===== Tokens (alineados con signup) ===== */
:root{
  --bg-base:#F9F5FF;
  --surface-base:#FFFFFF;

  --brand:#6B5BFF;
  --brand-600:#5A49F0;

  --ink:#0F0B1E;
  --muted:#6B7280;

  --line:#E8E3F8;

  --success:#22C55E;
  --error:#EF4444;
  --warning:#F59E0B;

  --s-4:4px; --s-8:8px; --s-12:12px; --s-16:16px; --s-20:20px; --s-24:24px; --s-32:32px; --s-40:40px;
  --r-12:12px; --r-16:16px; --r-24:24px;
  --shadow-sm:0 1px 2px rgba(15,11,30,.05);
  --shadow-md:0 6px 24px rgba(15,11,30,.08);
  --ring:0 0 0 3px rgba(107,91,255,.22);
}

/* ===== Reset base ===== */
*{ box-sizing:border-box }
html,body{ height:100% }
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  color:var(--ink);
  background:var(--bg-base);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
a{ color:inherit; text-decoration:none }
img,svg{ display:block }

/* ===== Layout ===== */
.nu-auth{ min-height:100vh; display:grid; grid-template-columns: 1fr 1fr; }
.nu-auth__aside{
  position:relative;
  padding: clamp(24px, 4vw, 48px);
  background: var(--brand);
  color:#fff;
  display:flex; flex-direction:column; justify-content:flex-start;
  padding-top: clamp(40px, 25vh, 160px);
  overflow:hidden;
  padding-left: clamp(36px, 6vw, 96px);
}
.nu-auth__panel{
  display:flex; align-items:center; justify-content:center;
  padding: clamp(24px, 4vw, 48px);
}

/* Variante de una sola columna para páginas sin aside */
.nu-auth.nu-auth--single{ grid-template-columns: 1fr; }

/* ===== Card ===== */
.nu-card{
  width:100%;
  max-width:520px;
  background:var(--surface-base);
  border:1px solid var(--line);
  border-radius:var(--r-24);
  box-shadow:var(--shadow-md);
  padding:clamp(20px, 4vw, 32px);
}
.nu-card__head{ text-align:center; margin-bottom:var(--s-24); }
.nu-card__title{ margin:0 0 var(--s-8); font-weight:800; font-size:24px; line-height:1.15; }
.nu-card__subtitle{ margin:0; color:var(--muted); font-size:14px; }

/* ===== Logo pill (icono pequeño con badge blanco) ===== */
.nu-logo{ display:inline-flex; align-items:center; gap:10px; align-self:flex-start; margin-bottom:40px; }
.nu-logo__badge{
  display:inline-grid; place-items:center;
  width:46px; height:46px; border-radius:9999px;
  background:#fff; border:2px solid rgba(255,255,255,.85);
  box-shadow:0 1px 2px rgba(15,11,30,.06);
}
.nu-logo__icon{ width:28px; height:28px; object-fit:contain; }
.nu-logo__text{ font-size:30px; font-weight:600; line-height:1; color:#fff; }

/* ===== Hero ===== */
.nu-hero__title{
  font-size: clamp(28px, 4vw, 40px);
  line-height:1.1;
  margin:0 0 var(--s-16);
  font-weight:800;
}
.nu-hero__subtitle{ max-width:42ch; margin:0; color:rgba(255,255,255,.9); }

/* Dots decoration */
.nu-dots{
  position:absolute; right:6%; bottom:6%;
  width:240px; height:240px;
  background-image: radial-gradient(rgba(255,255,255,.98) 3px, transparent 3px);
  background-size:28px 28px;
  opacity:.9; pointer-events:none;
}

/* ===== Buttons ===== */
.nu-button{
  appearance:none;
  display:flex; align-items:center; justify-content:center;
  gap:10px; width:100%;
  border:1px solid var(--line);
  border-radius:9999px;
  padding:14px 18px;
  font-weight:800;
  background:#fff; color:var(--ink);
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}
.nu-button:hover{ transform:translateY(-1px); box-shadow:var(--shadow-sm); }
.nu-button:active{ transform:translateY(0); }

.nu-button--primary{ background:var(--brand); color:#fff; border-color:transparent; }
.nu-button--primary:hover{ background:var(--brand-600); }

/* OAuth button (icono en badge blanco) */
.nu-button--oauth{
  background: var(--brand); color:#fff; border-color: transparent;
  box-shadow: 0 1px 2px rgba(15,11,30,.05), 0 2px 8px rgba(107,91,255,.22);
}
.nu-button--oauth:hover{
  background: var(--brand-600);
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(107,91,255,.35);
}
.nu-oauth__icon{
  display:inline-grid; place-items:center;
  width:28px; height:28px; border-radius:9999px;
  background:#fff; border:2px solid rgba(255,255,255,.95);
}
.nu-oauth__icon img{ width:16px; height:16px; }

/* ===== Separator ===== */
.nu-sep{
  display:grid; grid-template-columns:1fr auto 1fr;
  align-items:center; gap:10px;
  margin:var(--s-20) 0 var(--s-16);
}
.nu-sep__line{ height:1px; background:var(--line); }
.nu-sep__dot{ width:6px; height:6px; border-radius:50%; background:var(--ink); }

/* ===== Form ===== */
.nu-form{ display:grid; gap:var(--s-16); }

.nu-field label{
  display:block; font-weight:600; font-size:14px; margin-bottom:8px;
}
.nu-field input{
  width:100%; height:48px;
  border:1px solid var(--line);
  border-radius:var(--r-12);
  background:#fff;
  padding:0 14px;
  font-size:14px;
  outline:none;
  transition:border-color .15s ease, box-shadow .15s ease;
}
.nu-field input::placeholder{ color:#98a2b3; }
.nu-field input:hover{ border-color:var(--brand-200, #D4CEFF); }
.nu-field input:focus{
  border-color:var(--brand);
  box-shadow:var(--ring);
}

/* Campo con icono (ojo) */
.nu-field__ctrl{ position:relative; display:flex; align-items:center; }
.nu-eye{
  position:absolute; right:8px; top:50%; transform:translateY(-50%);
  width:36px; height:36px; border:none; background:transparent; padding:0; cursor:pointer;
  color:#8a8ea3;
}
.nu-eye:hover{ color:#555a73; }
.nu-eye svg{ width:20px; height:20px; }

/* Helpers */
.nu-row{ display:flex; align-items:center; gap:12px; }
.nu-row--between{ justify-content:space-between; }
.nu-form__extra{ margin-top:-6px; }

/* Checkbox */
.nu-check{ display:inline-flex; align-items:center; gap:8px; font-size:14px; color:var(--muted); cursor:pointer; user-select:none; }
.nu-check input{ width:16px; height:16px; accent-color: var(--brand); }

/* Footer alt */
.nu-alt{ text-align:center; margin-top:var(--s-20); color:var(--muted); font-size:14px; }
.nu-link{
  color:var(--brand);
  font-weight:700;
  background:transparent;
  border:0;
  padding:0;
  font:inherit;
  cursor:pointer;
}
.nu-link:hover{ text-decoration:underline; }

/* ===== States ===== */
.is-invalid input{ border-color:var(--error); box-shadow:0 0 0 3px rgba(239,68,68,.2); }
.is-valid   input{ border-color:var(--success); box-shadow:0 0 0 3px rgba(34,197,94,.18); }

/* ===== Responsive ===== */
@media (max-width: 1024px){
  .nu-auth{ grid-template-columns:1fr; }
  .nu-auth__aside{
    min-height:44vh; justify-content:flex-start;
    padding-left: clamp(24px, 4vw, 48px);
    padding-top: clamp(20px, 6vw, 48px);
  }
  .nu-auth__panel{ padding-top:var(--s-24); }
  .nu-card{ margin:0 auto; }
}
@media (max-width: 520px){
  .nu-card{ padding:20px; border-radius:var(--r-16); }
  .nu-card__title{ font-size:22px; }
}