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

:root {
    --bg: #f7f0ea;
    --text: #2a2220;
    --muted: #a08070;
    --border: #e4d6cc;
    --btn-border: #c9b8ac;
    --btn-text: #a08070;
    --btn-hover: #5a3e30;
    --btn-active: #2a2220;
    --link: #2a2220;
    --link-hover: #1a0f0a;
}

body.dark {
    --bg: #1a1210;
    --text: #e8d8d0;
    --muted: #7a5e50;
    --border: #2e2220;
    --btn-border: #4a3530;
    --btn-text: #7a5e50;
    --btn-hover: #c8a898;
    --btn-active: #e8d8d0;
    --link: #e8d8d0;
    --link-hover: #fff0e8;
}

body {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    padding: 4rem 2rem;
    max-width: 860px;
    margin: 0 auto;
    transition: background 0.3s, color 0.3s;
}

header {
    margin-bottom: 4rem;
}

h1 {
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: lowercase;
    color: var(--muted);
    margin-bottom: 2rem;
}

nav {
    display: flex;
    gap: 1px;
}

.view-btn, .theme-btn {
    background: none;
    border: 1px solid var(--btn-border);
    color: var(--btn-text);
    padding: 0.4rem 1rem;
    font-family: inherit;
    font-size: 0.75rem;
    cursor: pointer;
    letter-spacing: 0.1em;
    text-transform: lowercase;
    transition: color 0.2s, border-color 0.2s;
}

.view-btn:first-child {
    border-radius: 3px 0 0 3px;
}

.view-btn:last-child {
    border-radius: 0 3px 3px 0;
    border-left: none;
}

.view-btn:hover, .theme-btn:hover {
    color: var(--btn-hover);
    border-color: var(--btn-hover);
}

.view-btn.active {
    color: var(--btn-active);
    border-color: var(--btn-active);
}

.theme-btn {
    border-radius: 3px;
    margin-left: auto;
}

ul {
    list-style: none;
}

.timeline li, .category-list li {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
}

.timeline li:last-child, .category-list li:last-child {
    border-bottom: none;
}

.date {
    font-size: 0.75rem;
    color: var(--muted);
    flex-shrink: 0;
}

a {
    color: var(--link);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

a:hover {
    color: var(--link-hover);
}

h2 {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--muted);
    text-transform: lowercase;
    letter-spacing: 0.15em;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

section:first-child h2 {
    margin-top: 0;
}

.byline {
    font-size: 0.9rem;
    color: var(--muted);
}


.category-list {
    padding-left: 1.5rem;
}

.category-list .byline {
    display: block;
    font-size: 0.9rem;
    margin-top: 0.15rem;
}