:root {
    --ghost-white: #ffffff;
    --light-gray: #e5e5e5;
    --quick-silver: #666666;
    --raisin-black: #2e2e2e;
    /* teal from the avatar's backdrop */
    --teal: #2f6670;

    --bg: var(--ghost-white);
    --fg: var(--raisin-black);
    --strong: var(--raisin-black);
    --muted: var(--quick-silver);
    --rule: var(--light-gray);
    --accent: var(--teal);
    --selection: rgba(47, 102, 112, 0.18);
    --btn-bg: var(--raisin-black);
    --btn-fg: var(--ghost-white);

    color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: var(--raisin-black);
        --fg: var(--light-gray);
        --strong: var(--ghost-white);
        --muted: #a3a3a3;
        --rule: rgba(255, 255, 255, 0.14);
        --accent: #8cc3cb;
        --selection: rgba(140, 195, 203, 0.28);
        --btn-bg: transparent;
        --btn-fg: var(--light-gray);
    }
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body,
h1,
h2,
ul,
li {
    margin: 0;
    padding: 0;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg);
    color: var(--fg);
    font-family: 'Inter', sans-serif;
    line-height: 1.8;
    font-size: 1.1rem;
}

main {
    flex: 1;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Fira Mono', monospace;
    font-weight: 700;
    color: var(--strong);
    text-wrap: balance;
}

a {
    color: inherit;
    transition: color 0.2s ease;
}

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

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

img {
    max-width: 100%;
}

time {
    font-family: 'Fira Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
}

/* ---------- home ---------- */

#home {
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: 4rem 1rem 3rem;
}

#card {
    margin: 0 auto;
    text-align: center;
    max-width: 600px;
    width: 100%;
}

#card-header {
    padding-bottom: 1.5rem;
}

#avatar {
    width: 96px;
    height: 96px;
    border-radius: 24px;
    overflow: hidden;
    margin: 0 auto 0.8rem;
    box-shadow: 0 2px 0 0 rgba(0, 0, 0, 0.6);
}

#avatar img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.1);
    transform-origin: center center;
}

#card-title {
    font-size: 2.2rem;
    line-height: 1.2;
    text-transform: uppercase;
}

#card-subtitle {
    margin: 0.2rem 0 0;
    color: var(--muted);
    font-size: 0.95rem;
}

#card-bio {
    max-width: 34rem;
    margin: 1.1rem auto 0;
    font-size: 1.05rem;
    line-height: 1.6;
    text-wrap: pretty;
}

#card-links ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    list-style: none;
}

.links-primary {
    gap: 0.5rem;
}

.links-primary a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.95rem;
    border: 1px solid var(--rule);
    border-radius: 999px;
    color: var(--strong);
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.2;
    text-decoration: none;
    transition: border-color 0.2s ease, color 0.2s ease;
}

.links-primary a:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.links-primary i,
.links-primary .custom-ico {
    font-size: 1.05rem;
}

.links-secondary {
    gap: 0.25rem 1rem;
    margin-top: 0.9rem;
}

.links-secondary a {
    display: inline-flex;
    align-items: center;
    min-height: 2.75rem;
    min-width: 2rem;
    justify-content: center;
    color: var(--muted);
    font-size: 1.35rem;
    text-decoration: none;
}

.links-secondary a:not([aria-label]) {
    font-family: 'Fira Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.links-secondary a:hover {
    color: var(--strong);
}

.custom-ico {
    font-family: 'Fira Mono', monospace;
    font-weight: 700;
    font-size: 1em;
    letter-spacing: -0.03em;
    line-height: 1;
}

#writing {
    margin-top: 3rem;
    text-align: left;
}

.featured {
    display: grid;
    gap: 0.4rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--rule);
    color: var(--strong);
    text-decoration: none;
}

.featured-img {
    display: block;
    width: 100%;
    height: auto;
    margin-bottom: 1rem;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.featured:hover .featured-img {
    transform: translateY(-4px);
}

.featured-title {
    font-family: 'Fira Mono', monospace;
    font-weight: 700;
    font-size: 1.5rem;
    line-height: 1.3;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    text-wrap: balance;
}

.featured:hover .featured-title {
    color: var(--accent);
}

.featured-summary {
    color: var(--fg);
    font-size: 1rem;
    line-height: 1.6;
}

.all-writing {
    display: inline-block;
    margin-top: 1rem;
    color: var(--muted);
    font-family: 'Fira Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: underline;
    text-decoration-color: var(--rule);
    text-underline-offset: 4px;
}

.all-writing:hover {
    color: var(--strong);
    text-decoration-color: var(--accent);
}

/* ---------- post list (home, archive, 404) ---------- */

.post-list {
    list-style: none;
    text-align: left;
}

.post-list li {
    position: relative;
    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    gap: 1rem;
    padding: 0.9rem 0;
}

.post-list li.has-thumb {
    grid-template-columns: 1fr 240px;
}

.post-text {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.post-text time {
    order: -1;
}

.post-list a {
    color: var(--strong);
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.3;
}

.post-list li:hover a {
    color: var(--accent);
}

/* whole row is the click target */
.post-list a::after {
    content: "";
    position: absolute;
    inset: 0;
}

.post-thumb {
    display: block;
    width: 100%;
    height: 72px;
    object-fit: contain;
    object-position: right center;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.post-list li:hover .post-thumb {
    transform: translateX(-4px);
}

/* ---------- site header & footer ---------- */

.site-header,
.site-footer {
    width: 100%;
    max-width: 680px;
    margin: 0 auto;
    padding: 0 2rem;
}

.site-header {
    padding-top: 4rem;
}

.mini-profile {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--muted);
    font-size: 0.8rem;
    text-decoration: none;
}

.mini-avatar {
    flex: none;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    overflow: hidden;
}

.mini-avatar img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.1);
}

.mini-name {
    font-family: 'Fira Mono', monospace;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--strong);
}

.mini-profile:hover .mini-name {
    color: var(--accent);
}

.site-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem 2rem;
    padding-top: 2rem;
    padding-bottom: 3rem;
    margin-top: 2rem;
    border-top: 1px solid var(--rule);
}

.site-footer nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 1.25rem;
}

.site-footer nav a {
    color: var(--muted);
    font-family: 'Fira Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
}

.footer-social {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    list-style: none;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.25rem;
    min-height: 2.25rem;
    color: var(--muted);
    font-size: 1.1rem;
    text-decoration: none;
}

.site-footer a:hover {
    color: var(--strong);
}

/* ---------- post ---------- */

.post {
    max-width: 680px;
    margin: 0 auto;
    padding: 2.5rem 2rem 2rem;
}

.post-header {
    margin-bottom: 3rem;
    text-align: left;
}

.post-title {
    font-size: 2.5rem;
    line-height: 1.1;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

.post-meta {
    display: block;
    margin: 0;
    color: var(--muted);
    font-size: 0.8rem;
}

p.post-meta {
    font-size: 1rem;
    line-height: 1.6;
}

.post-hero {
    display: block;
    width: 100%;
    height: auto;
    margin: -1.5rem 0 3rem;
}

.post-content {
    line-height: 1.6;
    text-align: left;
    counter-reset: book;
}

.post-content h1 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.post-content h2 {
    counter-reset: book;
    margin-top: 3.5rem;
    margin-bottom: 1.25rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--strong);
}

.post-content h3 {
    counter-increment: book;
    margin-top: 3rem;
    margin-bottom: 0.25rem;
}

.post-content h3::before {
    content: counter(book, decimal-leading-zero);
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    color: var(--muted);
    margin-bottom: 0.4rem;
}

.post-content h3 + p > em {
    display: block;
    color: var(--muted);
    font-size: 0.875em;
    margin-top: -0.1rem;
    margin-bottom: 1rem;
}

.post-content p {
    margin-bottom: 1rem;
}

.post-content ul,
.post-content ol {
    padding-left: 1.25rem;
}

.post-content a:not(.btn) {
    color: var(--strong);
    text-decoration: underline;
    text-decoration-color: var(--accent);
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
}

.post-content a:not(.btn):hover {
    color: var(--accent);
    text-decoration-thickness: 2px;
}

.btn {
    display: inline-block;
    background: var(--btn-bg);
    color: var(--btn-fg);
    padding: 0.65rem 1.4rem;
    border-radius: 4px;
    border: 2px solid var(--fg);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.8rem;
    line-height: 1.4;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    margin-top: 0.5rem;
}

.btn:hover {
    background: transparent;
    color: var(--strong);
    border-color: var(--accent);
}

@media (prefers-color-scheme: dark) {
    .btn {
        border-color: rgba(255, 255, 255, 0.3);
    }
}

hr {
    border: 0;
    border-top: 1px solid var(--rule);
    margin: 3rem auto;
    width: 100%;
}

/* end of post: author + next read */

.post-end {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--rule);
}

.author {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
}

.author .mini-avatar {
    width: 44px;
    height: 44px;
    border-radius: 11px;
}

.author p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

.author strong {
    color: var(--strong);
}

.next-read {
    display: grid;
    gap: 0.3rem;
    margin-top: 2.5rem;
    color: var(--strong);
    text-decoration: none;
}

.next-read-img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 180px;
    object-fit: contain;
    object-position: left center;
    margin-bottom: 0.75rem;
}

.next-read-title {
    font-family: 'Fira Mono', monospace;
    font-weight: 700;
    font-size: 1.15rem;
    line-height: 1.3;
    text-transform: uppercase;
    text-wrap: balance;
}

.next-read-prefix {
    color: var(--muted);
}

.next-read:hover .next-read-title {
    color: var(--accent);
}

/* archive & 404 */

.archive-year {
    margin: 2.5rem 0 0.25rem;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    color: var(--muted);
}

.not-found .btn {
    margin: 0 0 1rem;
}

@media only screen and (max-width: 768px) {
    #home {
        padding-top: 2.5rem;
    }

    #card-title {
        font-size: 1.8rem;
    }

    #card-subtitle {
        font-size: 0.85rem;
    }

    #card-bio {
        font-size: 1rem;
    }

    #avatar {
        width: 80px;
        height: 80px;
        margin-bottom: 0.6rem;
    }

    #writing {
        margin-top: 2.5rem;
    }

    .featured-title {
        font-size: 1.25rem;
    }

    .post-list li.has-thumb {
        grid-template-columns: 1fr 120px;
    }

    .post-thumb {
        height: 52px;
    }

    .site-header,
    .site-footer {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .site-header {
        padding-top: 1.5rem;
    }

    .post {
        padding: 1.75rem 1rem 1rem;
    }

    .mini-subtitle {
        display: none;
    }

    .post-title {
        font-size: 1.8rem;
    }

    .post-content h2 {
        margin-top: 2.75rem;
    }

    hr {
        margin: 2rem auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition: none !important;
    }
}

#card-bio a,
.author a {
    color: var(--strong);
    text-decoration: underline;
    text-decoration-color: var(--accent);
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
}

#card-bio a:hover,
.author a:hover {
    color: var(--accent);
}