/* Login compartido · academia/cursos */
:root {
  --login-rojo: #c22e2e;
  --login-texto: #18181b;
  --login-texto-medio: #52525b;
  --login-fondo: #f4f4f5;
  --login-fondo-alt: #ffffff;
  --login-borde: #e4e4e7;
  --login-radio: 14px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body.login {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--login-texto);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(194, 46, 46, 0.12), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(63, 63, 70, 0.1), transparent 50%),
    var(--login-fondo);
}

.login-header {
  background: #fff;
}

.login-header__franja {
  height: 4px;
}

.login-header__franja--gris {
  background: #6b7280;
}

.login-header__franja--roja {
  background: var(--login-rojo);
}

.login-header__bar {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--login-borde);
}

.login-header__bar img {
  display: block;
  height: 42px;
  width: auto;
}

.login-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem 3rem;
  min-height: calc(100vh - 70px);
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--login-fondo-alt);
  border: 1px solid var(--login-borde);
  border-radius: var(--login-radio);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  padding: 1.75rem 1.5rem 1.6rem;
}

.login-card__eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--login-rojo);
}

.login-card__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  line-height: 1.25;
}

.login-card__lead {
  margin: 0 0 1.35rem;
  color: var(--login-texto-medio);
  font-size: 0.98rem;
}

.login-form {
  display: grid;
  gap: 1rem;
}

.login-field label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--login-texto);
}

.login-field input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--login-borde);
  border-radius: 10px;
  font: inherit;
  color: var(--login-texto);
  background: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.login-field input:focus {
  outline: none;
  border-color: var(--login-rojo);
  box-shadow: 0 0 0 3px rgba(194, 46, 46, 0.15);
}

.login-error {
  margin: 0;
  padding: 0.65rem 0.8rem;
  border-radius: 10px;
  background: #fce8e8;
  color: #8b1e1e;
  font-size: 0.92rem;
}

.login-error[hidden] {
  display: none !important;
}

.login-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.8rem 1rem;
  border: none;
  border-radius: 999px;
  background: var(--login-rojo);
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}

.login-submit:hover {
  background: #a82525;
}

.login-submit:focus-visible {
  outline: 3px solid rgba(194, 46, 46, 0.35);
  outline-offset: 2px;
}

.login-hint {
  margin: 1.1rem 0 0;
  font-size: 0.85rem;
  color: var(--login-texto-medio);
  text-align: center;
}