:root {
  --primario: #010a55;
  --primario-hover: #0b1a7d;
  --sobre-primario: #ffffff;
  --acento: #27a8d8;
  --fondo: #f4f7fb;
  --superficie: #ffffff;
  --texto: #0d1530;
  --texto-suave: #5a6480;
  --borde: #d3dbe7;
  --peligro: #c62828;
  --peligro-suave: #fdecec;
  color-scheme: light;
}

[data-theme="oscuro"] {
  --primario: #27a8d8;
  --primario-hover: #4bbbe4;
  --sobre-primario: #04122a;
  --fondo: #0b1020;
  --superficie: #121a30;
  --texto: #e7ecf6;
  --texto-suave: #9aa6c2;
  --borde: #2a3656;
  --peligro: #ff8a80;
  --peligro-suave: rgba(229, 83, 83, 0.15);
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(circle at 20% 0%, color-mix(in srgb, var(--acento) 14%, transparent), transparent 55%), var(--fondo);
  color: var(--texto);
}

.tarjeta-login {
  width: 100%;
  max-width: 380px;
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: 18px;
  padding: 32px 28px 28px;
  box-shadow: 0 12px 40px rgba(1, 10, 85, 0.08);
  text-align: center;
}

.logo-pastilla { display: inline-block; }
.logo-pastilla img { display: block; width: 220px; height: auto; max-width: 100%; }
[data-theme="oscuro"] .logo-pastilla { background: #ffffff; padding: 8px 14px; border-radius: 999px; }

h1 { font-size: 1.15rem; margin: 22px 0 2px; }
.bajada { margin: 0 0 22px; color: var(--texto-suave); font-size: 0.9rem; }

form { text-align: left; display: grid; gap: 6px; }

label { font-size: 0.85rem; font-weight: 600; margin-top: 8px; }

input[type="text"], input:not([type]), input[type="password"] {
  width: 100%;
  font: inherit;
  padding: 11px 12px;
  border: 1px solid var(--borde);
  border-radius: 10px;
  background: var(--fondo);
  color: var(--texto);
}

input:focus-visible, button:focus-visible {
  outline: 2px solid var(--acento);
  outline-offset: 2px;
}

.campo-clave { position: relative; }
.campo-clave input { padding-right: 64px; }
.ver-clave {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: transparent;
  color: var(--texto-suave);
  font: inherit;
  font-size: 0.85rem;
  padding: 6px 8px;
  cursor: pointer;
}

.recordar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  margin-top: 12px;
  cursor: pointer;
}
.recordar input { width: 18px; height: 18px; accent-color: var(--primario); }

.error {
  margin: 10px 0 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--peligro-suave);
  color: var(--peligro);
  font-size: 0.9rem;
}

.btn-ingresar {
  margin-top: 16px;
  font: inherit;
  font-weight: 600;
  padding: 12px;
  border: 0;
  border-radius: 999px;
  background: var(--primario);
  color: var(--sobre-primario);
  cursor: pointer;
}
.btn-ingresar:hover { background: var(--primario-hover); }
.btn-ingresar:disabled { opacity: 0.6; cursor: wait; }