/* ============================================
   RESET CSS - Normalización de estilos base
   ============================================ */

/* Reset de márgenes y padding */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Reset de elementos HTML5 */
html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Reset de elementos de bloque */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
nav,
section,
summary {
    display: block;
}

/* Reset de listas */
ul,
ol {
    list-style: none;
}

/* Reset de enlaces */
a {
    text-decoration: none;
    color: inherit;
}

a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Reset de imágenes */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Reset de formularios */
button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    margin: 0;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

/* Reset de tablas */
table {
    border-collapse: collapse;
    border-spacing: 0;
}

/* Reset de elementos ocultos */
[hidden],
template {
    display: none;
}

/* Accesibilidad - skip link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: 8px;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}