/* Reset mínimo y estilos generales de la página. */

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

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
p {
  margin: 0;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

[hidden] {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.container {
  width: 100%;
  max-width: 920px;
  margin-inline: auto;
  padding-inline: var(--space-4);
}

/* ---------- Cabecera ---------- */

.app-header {
  color: #fff;
  background:
    radial-gradient(circle at 85% -40%, rgba(0, 161, 228, 0.55), transparent 55%),
    linear-gradient(135deg, var(--color-dark), var(--color-secondary));
  padding: var(--space-6) 0 calc(var(--space-7) + var(--space-5));
}

.app-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
}

.app-header__logo {
  flex: none;
  display: grid;
  place-items: center;
  padding: 6px 14px;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}

/* El PNG es cuadrado con mucho margen transparente: se recorta al área del logotipo */
.app-header__logo img {
  display: block;
  width: 92px;
  height: 40px;
  object-fit: cover;
}

.app-header__title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.app-header__subtitle {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

/* ---------- Contenido y pie ---------- */

.app-main {
  flex: 1;
  margin-top: calc(-1 * (var(--space-7)));
  padding-bottom: var(--space-6);
}

.app-footer {
  padding: var(--space-5) 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- Login y cierre de sesión ---------- */

.app-header__logout {
  margin-left: auto;
}

.login-card {
  max-width: 460px;
  margin-inline: auto;
  padding: var(--space-6);
}