:root {
    --color-text: #1a1a1a;
    --color-text-light: #666;
    --color-bg: #ffffff;
    --color-bg-secondary: #f9f9f9;
    --color-accent: #000000;
    /* Minimalist black accent */
    --color-border: #eee;
    --spacing: 1.5rem;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html {
    font-size: 16px;
    /* Browser default is usually good for mobile */
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

h1,
h2,
h3 {
    line-height: 1.3;
    margin-bottom: 1rem;
    color: #111;
}

h1 {
    font-size: 1.8rem;
    font-weight: 700;
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2rem;
}

h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 1.5rem;
}

.container {
    max-width: 600px;
    /* Reading column width */
    margin: 0 auto;
    padding: 0 var(--spacing);
    width: 100%;
}

/* Header */
.header {
    padding: var(--spacing) 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-weight: 800;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.menu-icon {
    font-size: 1.2rem;
    color: var(--color-text);
}

/* Hero */
.hero {
    text-align: center;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2rem;
}

.tag {
    display: inline-block;
    background: var(--color-bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin: 1rem 0;
}

.meta-info {
    font-size: 0.9rem;
    color: var(--color-text-light);
    display: flex;
    justify-content: center;
    gap: 1rem;
    align-items: center;
    margin-top: 1rem;
}

/* Content Blocks */
.content-block {
    margin-bottom: 2.5rem;
}

.lead-text {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.article-body p {
    margin-bottom: 1.2rem;
    font-size: 1rem;
    color: #333;
}

.highlight-box {
    background-color: var(--color-bg-secondary);
    border-left: 3px solid var(--color-accent);
    padding: 1rem;
    margin: 1.5rem 0;
    font-size: 0.95rem;
}

/* Buttons */
.btn {
    display: inline-block;
    background: var(--color-accent);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    width: 100%;
    margin-top: 1rem;
    cursor: pointer;
}

.btn:hover {
    opacity: 0.9;
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

/* Checklist */
.checklist {
    list-style: none;
}

.checklist li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.checklist li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

/* Author */
.author-box {
    background: var(--color-bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #ddd;
    flex-shrink: 0;
}

/* Footer */
.footer {
    margin-top: 4rem;
    padding: 3rem 0;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.footer-legal-text p {
    margin-bottom: 1rem;
}