/* ============================================================
 * Archivo: base/reset.css
 * Descripción: Estilos base y reset para navegadores.
 * ============================================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--fuente-cuerpo);
    background-color: var(--color-fondo);
    color: var(--color-texto);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--fuente-encabezados);
    letter-spacing: 0;
    line-height: 1.18;
}

a {
    color: var(--color-primario);
    text-decoration: none;
    transition: var(--transicion);
}

a:hover {
    color: var(--color-primario-hover);
}

img {
    max-width: 100%;
    height: auto;
}

/* Contenedor principal */
.contenedor {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.contenido-principal {
    flex: 1;
    padding: 0 0 30px;
}

/* Grid Básico */
.grid {
    display: grid;
    gap: 25px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Animaciones */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.4s ease forwards;
}

.section-surface {
    background: var(--color-superficie);
}

.pagina-titulo {
    text-align: center;
    padding: 58px 20px;
    background:
        linear-gradient(90deg, rgba(7, 33, 31, 0.46), rgba(7, 33, 31, 0.16)),
        linear-gradient(135deg, rgba(25, 63, 60, 0.98) 0%, rgba(25, 63, 60, 0.98) 70%, rgba(188, 228, 224, 0.78) 70%, rgba(188, 228, 224, 0.78) 72%, rgba(49, 122, 115, 0.98) 72%, rgba(49, 122, 115, 0.98) 100%);
    color: var(--color-blanco);
    margin-bottom: 40px;
}

.pagina-titulo h1,
.pagina-titulo p {
    text-shadow: 0 3px 14px rgba(0, 0, 0, 0.26);
}

.pagina-titulo h1,
.panel-header h2,
.footer h4 {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

/* Responsividad general */
@media (max-width: 992px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}