/* ============================================
   CSS RESET & CUSTOM PROPERTIES
============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html,
body {
    height: 100%;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    line-height: 1.5;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
    overflow-wrap: break-word;
}

/* ============================================
   DESIGN TOKENS (CUSTOM PROPERTIES)
============================================ */
:root {
    /* Colors */
    --color-bg-primary: #121212;
    --color-bg-secondary: #171717;
    --color-text-primary: #bbbbbb;
    --color-text-secondary: #aaaaaa;
    --color-text-muted: #cccccc;
    --color-accent: #bbbbbb;

    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-serif: Charter, 'Bitstream Charter', 'Sitka Text', Cambria, serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;

    /* Spacing Scale */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 20px;
    --space-2xl: 24px;
    --space-3xl: 32px;
    --space-4xl: 40px;

    /* Layout */
    --container-max-width: 1000px;
    --border-radius: 5px;
    --border-radius-sm: 3px;
}

/* ============================================
   BASE ELEMENTS
============================================ */
body {
    font-family: var(--font-family-base);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--space-xl);
    padding-top: var(--space-2xl);
}

a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

strong {
    font-weight: var(--font-weight-medium);
    color: var(--color-text-muted);
}

em {
    font-family: var(--font-family-serif);
}

/* ============================================
   TYPOGRAPHY
============================================ */
h1 {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
    font-size: 24px;
    margin-bottom: var(--space-lg);
    padding-top: var(--space-2xl);
}

h2,
h3 {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
    font-size: 1.1em;
    margin-top: var(--space-sm);
    margin-bottom: var(--space-3xl);
}

/* ============================================
   LAYOUT COMPONENTS
============================================ */
article {
    margin-bottom: var(--space-4xl);
    padding-top: var(--space-xl);
}

section {
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--space-xl) var(--space-2xl) 2px var(--space-2xl);
    margin-bottom: var(--space-3xl);
    margin-inline: var(--space-md);
}

.article-header {
    font-size: 1.1em;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.article-title {
    font-weight: var(--font-weight-medium);
}

.article-date {
    font-size: 0.9em;
    color: var(--color-text-muted);
}

/* ============================================
   LIST COMPONENTS
============================================ */
ul {
    padding-left: var(--space-sm);
}

li {
    margin-bottom: var(--space-3xl);
    line-height: 1.6;
    list-style: square;
    margin-left: var(--space-sm);
}

/* Nested lists */
li ul {
    margin-top: var(--space-md);
    padding-left: 25px;
}

li ul li {
    margin-bottom: var(--space-sm);
}

/* ============================================
   UTILITIES
============================================ */
blockquote {
    display: none;
}