/* base.css */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
    padding: 0;
    /* Fonte e cor fluida base */
    font-size: 16px;
}

body {
    font-family: var(--font-family-sans);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Tipografia Fluida e Hierárquica */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-display);
    font-weight: 700;
    margin: 0 0 var(--spacing-4) 0;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h2 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.25rem); }

p, ul, ol, dl {
    margin: 0 0 var(--spacing-4) 0;
    font-size: clamp(0.875rem, 1.5vw, 1rem);
}

ul, ol {
    padding-left: var(--spacing-5);
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover,
a:focus-visible {
    color: var(--color-accent-soft);
    text-decoration: underline;
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Foco tático (Acessibilidade) */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

::-moz-selection {
    background: var(--color-accent-a10);
    color: #fff;
}

::selection {
    background: var(--color-accent-soft);
    color: #fff;
}