@font-face {
    font-family: "Avenir";
    src: url("../fonts/AvenirLTStd-Light.otf") format("opentype");
    font-weight: 300;
    font-style: normal;
    font-display: fallback;
}

@font-face {
    font-family: "Avenir";
    src: url("../fonts/AvenirLTStd-Medium.otf") format("opentype");
    font-weight: 500;
    font-style: normal;
    font-display: fallback;
}

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

html {
    scroll-behavior: smooth;
}

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

:root {
    /* Light - Refined Neutral */
    --light-bg-color: #faf9f6;
    --light-color: #252018;
    --light-secondary-color: #6b5d52;
    --light-accent-color: #8b7355;
    --light-selection-color: #8b7355;
    --light-article-line-height: 1.5em;

    /* Dark - Refined Neutral */
    --dark-bg-color: #18140f;
    --dark-color: #f4efe6;
    --dark-secondary-color: #a89a8c;
    --dark-accent-color: #b89f7d;
    --dark-selection-color: #b89f7d;
    --dark-article-line-height: 1.6em;

    /* Spacing Scale (8px base, geometric) */
    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
    --space-4: 32px;
    --space-5: 48px;
    --space-6: 64px;
    --space-7: 96px;

    /* Default */
    --bg-color: var(--light-bg-color);
    --color: var(--light-color);
    --secondary-color: var(--light-secondary-color);
    --accent-color: var(--light-accent-color);
    --selection-color: var(--light-selection-color);
    --max-width: 700px;
    --font: "Avenir", sans-serif;
    --font-monospace: "Lucida Console", Monaco, monospace;
    --article-line-height: var(--light-article-line-height);
    --global-padding: var(--space-3);

    width: 100%;
    height: 100%;
    font-size: clamp(1.1rem, 2vmin, 1.3rem);
    font-weight: 300;
    line-height: 1.5;
    position: relative;
    background: var(--bg-color);
    color: var(--color);
    color-scheme: light dark;
    font-family: var(--font);
    font-feature-settings:
        "kern" 1,
        "liga" 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3 {
    text-rendering: optimizeLegibility;
    letter-spacing: -0.02em;
    text-wrap: balance;
}

p {
    text-wrap: pretty;
}

img {
    max-width: 100%;
    height: auto;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: var(--dark-bg-color);
        --color: var(--dark-color);
        --secondary-color: var(--dark-secondary-color);
        --accent-color: var(--dark-accent-color);
        --selection-color: var(--dark-selection-color);
        --article-line-height: var(--dark-article-line-height);
    }
}

@media (min-width: 768px) {
    :root {
        --global-padding: var(--space-5);
    }
}

::selection {
    background: var(--selection-color);
    color: var(--bg-color);
}

a {
    color: var(--accent-color);
    font-weight: 500;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

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

pre {
    background: color-mix(in srgb, var(--color) 8%, var(--bg-color));
    color: var(--color);
    padding: 16px;
    overflow-x: auto;
    font-size: 0.85em;
}

pre > code {
    background: transparent;
    color: inherit;
    padding: 0;
}

p > code,
li > code {
    background: color-mix(in srgb, var(--color) 8%, var(--bg-color));
    color: var(--color);
    padding: 2px 6px;
    font-size: 0.85em;
    word-break: break-word;
}

body {
    text-align: left;
    font-size: 1em;
    position: relative;
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

body > main {
    flex: 1;
}

@media (min-width: 1281px) {
    body {
        font-size: 0.9em;
    }
}

/* About page */
.about-page {
    margin-bottom: var(--space-6);
}

.about-page h1 {
    font-size: 1.5em;
    font-weight: 500;
    margin-bottom: var(--space-4);
}

.about-page .avatar {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    margin-bottom: var(--space-3);
}

.about-page .bio h2 {
    font-size: 1.1em;
    font-weight: 500;
    margin-top: var(--space-5);
    margin-bottom: var(--space-2);
}

.about-page .bio h2:first-child {
    margin-top: 0;
}

.about-page .bio p {
    margin-top: var(--space-2);
}

.about-page .bio p:first-child {
    margin-top: 0;
}

.about-page .bio ul,
.about-page .bio ol {
    list-style-position: outside;
    padding-left: 1.5em;
    margin-top: var(--space-2);
}

.about-page .bio li {
    margin-top: 0.5em;
    padding-left: 0.25em;
}

.about-page .bio li:first-child {
    margin-top: 0;
}

/* Default main padding for non-home, non-post pages */
body:not(.home):not(.post) > main {
    padding: var(--space-5) var(--global-padding);
    max-width: var(--max-width);
}

@media (min-width: 768px) {
    body:not(.home):not(.post) > main {
        padding: var(--space-6) var(--global-padding);
    }
}

body > footer {
    padding: 0 var(--global-padding) var(--space-5);
    margin-top: var(--space-5);
    font-size: 0.8em;
    text-align: left;
}

body > footer > small {
    color: var(--secondary-color);
    display: block;
    margin-top: var(--space-1);
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    font-feature-settings: "tnum" 1;
}

body > footer > small:first-child {
    margin-top: 0;
}

/* Breadcrumb */
.breadcrumb {
    max-width: var(--max-width);
    padding: var(--space-3) var(--global-padding);
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5em;
    font-size: 0.85em;
    color: var(--secondary-color);
}

.breadcrumb li:not(:last-child)::after {
    content: "/";
    margin-left: 0.5em;
    color: var(--secondary-color);
    opacity: 0.5;
}

.breadcrumb a {
    font-weight: 400;
}

.breadcrumb li[aria-current="page"] {
    color: var(--color);
}

/* Accessibility utilities */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}