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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

body {
    margin: 0;
    font-family: var(--br-font-sans);
    color: var(--br-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    background:
        radial-gradient(circle at 8% 0%, rgba(25, 118, 243, 0.09), transparent 38%),
        radial-gradient(circle at 100% 20%, rgba(77, 163, 255, 0.07), transparent 40%),
        var(--br-background);
    background-attachment: fixed;
}

h1, h2, h3, h4 {
    line-height: 1.2;
    margin: 0 0 var(--space-3);
    letter-spacing: -0.02em;
    color: var(--br-text);
    font-weight: 800;
}

p {
    margin: 0 0 var(--space-3);
}

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

a:hover {
    color: var(--br-primary-dark);
}

button {
    font-family: inherit;
}

.container {
    width: 100%;
    max-width: 1120px;
    margin-inline: auto;
    padding-inline: var(--space-4);
}

/* Icon-System */
.icon {
    width: 1.15em;
    height: 1.15em;
    display: inline-block;
    vertical-align: -0.2em;
    flex-shrink: 0;
}

.icon-lg {
    width: 1.6em;
    height: 1.6em;
}

.icon-xl {
    width: 2.4em;
    height: 2.4em;
}

/* Sichtbarer Fokus für Tastaturnutzung (Barrierefreiheit) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--br-primary);
    outline-offset: 2px;
}