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

body {
    margin: 0;
    font-family: var(--font-body);
    background-color: var(--bg-app);
    color: var(--text-body);
    line-height: 1.6;
    min-height: 100vh;
    /* Increased leading for screen reading comfort */
    -webkit-font-smoothing: antialiased;
    /* Critical for dark mode text rendering */
    -moz-osx-font-smoothing: grayscale;
    background-image:
        radial-gradient(circle at 15% 50%, var(--bg-ambient-1) 0%, transparent 30%),
        radial-gradient(circle at 85% 30%, var(--bg-ambient-2) 0%, transparent 30%);
    background-attachment: fixed;
}

:focus-visible {
    outline: 2px solid var(--accent-alpha-strong);
    outline-offset: 2px;
}

/* Headings - The "Technical" Voice */
h1,
h2,
h3,
h4,
.logo,
.hero-title {
    font-family: var(--font-display);
    color: var(--text-primary);
    letter-spacing: -0.02em;
    /* Tighten display headings for impact */
    font-weight: 600;
    font-optical-sizing: auto;
    /* Enable variable font optimization */
}

/* Paragraphs - The "Human" Voice */
p {
    max-width: 70ch;
    /* Optimal line length for reading comprehension */
    margin-bottom: 1.5em;
}

@media (prefers-color-scheme: light) {
    body {
        -webkit-font-smoothing: auto;
    }
}