/*
   良质

   Quality is not a thing. It is an event.
   It is the event at which the subject becomes
   aware of the object. And because without objects
   there can be no subject — Quality is the event
   at which awareness of both subjects and objects
   is made possible.

                                    — Robert M. Pirsig
*/

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

:root {
    --bg: #f6f4f0;
    --text: #2c2c2c;
    --quiet: #999;
    --faint: #ddd;
    --ink: #1a1a1a;

    --zh: "Noto Serif SC", "Songti SC", "SimSun", serif;
    --en: "EB Garamond", "Georgia", serif;
    --mono: "JetBrains Mono", "Fira Code", "Menlo", monospace;

    --w: 34rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #191919;
        --text: #c8c4bc;
        --quiet: #666;
        --faint: #333;
        --ink: #e0dcd4;
    }
}

html {
    font-size: 18px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--zh);
    color: var(--text);
    background: var(--bg);
    line-height: 2;
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ——————————————————————————————
   Index
   —————————————————————————————— */

.index {
    max-width: var(--w);
    margin: 0 auto;
    padding: 20vh 1.5rem 10vh;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.home {
    display: block;
    font-size: 1.1rem;
    letter-spacing: 0.3em;
    color: var(--quiet);
    margin-bottom: 4rem;
    transition: color 0.3s;
}

.home:hover {
    color: var(--ink);
}

.entries {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.entry {
    display: block;
    font-size: 1.05rem;
    line-height: 1.6;
    padding: 0.6rem 0;
    color: var(--text);
    transition: color 0.2s;
    border-bottom: 1px solid transparent;
}

.entry:hover {
    color: var(--ink);
}

.entry-empty {
    color: var(--quiet);
}

/* ——————————————————————————————
   Article
   —————————————————————————————— */

article {
    max-width: var(--w);
    margin: 0 auto;
    padding: 15vh 1.5rem 8vh;
}

.title {
    font-family: var(--zh);
    font-weight: 400;
    font-size: 1.8rem;
    line-height: 1.4;
    color: var(--ink);
    letter-spacing: 0.05em;
}

article > hr {
    border: none;
    border-top: 1px solid var(--faint);
    margin: 2.5rem 0;
    width: 2rem;
}

.status-note {
    color: var(--quiet);
    margin-bottom: 1.2rem;
    font-size: 0.9rem;
}

.status-note.error {
    color: #9e6e64;
}

/* Content */

.content {
    font-size: 1rem;
    line-height: 2;
    color: var(--text);
}

.content p {
    margin-bottom: 1.6rem;
    text-align: justify;
}

.content h1, .content h2, .content h3,
.content h4, .content h5, .content h6 {
    font-weight: 600;
    line-height: 1.4;
    margin-top: 3rem;
    margin-bottom: 1rem;
    color: var(--ink);
    letter-spacing: 0.03em;
}

.content h1 { font-size: 1.4rem; }
.content h2 { font-size: 1.2rem; }
.content h3 { font-size: 1.05rem; }
.content h4 { font-size: 1rem; }

.content ul, .content ol {
    margin-bottom: 1.6rem;
    padding-left: 1.5rem;
}

.content li {
    margin-bottom: 0.4rem;
    line-height: 1.8;
}

.content blockquote {
    margin: 2rem 0;
    padding: 0 0 0 1.5rem;
    color: var(--quiet);
    font-style: italic;
    line-height: 1.9;
}

.content blockquote p:last-child { margin-bottom: 0; }

.content code {
    font-family: var(--mono);
    font-size: 0.82em;
    background: var(--faint);
    padding: 0.1em 0.35em;
    border-radius: 2px;
}

.content pre {
    background: #272520 !important;
    margin: 2rem 0;
    padding: 1.2rem 1.4rem;
    overflow-x: auto;
    font-size: 0.82rem;
    line-height: 1.7;
    border-radius: 2px;
}

@media (prefers-color-scheme: dark) {
    .content pre {
        background: #1f1e1c !important;
    }
}

.content pre code {
    background: none;
    padding: 0;
    border-radius: 0;
    font-size: inherit;
}

.content img {
    max-width: 100%;
    height: auto;
    margin: 2rem 0;
}

.content table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    font-size: 0.9rem;
}

.content th, .content td {
    border-bottom: 1px solid var(--faint);
    padding: 0.5rem 0.75rem;
    text-align: left;
}

.content th {
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--quiet);
    letter-spacing: 0.05em;
}

.content hr {
    border: none;
    margin: 3rem 0;
    text-align: center;
}

.content hr::after {
    content: "·";
    color: var(--quiet);
    font-size: 1.2rem;
}

.content .anchor {
    display: none;
}

/* End of piece — date and way home */

.end {
    margin-top: 5rem;
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    color: var(--quiet);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.end time {
    font-family: var(--mono);
    font-size: 0.7rem;
}

.end a {
    color: var(--quiet);
    transition: color 0.2s;
}

.end a:hover {
    color: var(--ink);
}

/* ——————————————————————————————
   404
   —————————————————————————————— */

.lost {
    max-width: var(--w);
    margin: 0 auto;
    padding: 30vh 1.5rem;
    color: var(--quiet);
    font-size: 0.95rem;
}

.lost a {
    display: inline-block;
    margin-top: 2rem;
    color: var(--quiet);
    font-size: 0.8rem;
    transition: color 0.2s;
}

.lost a:hover {
    color: var(--ink);
}

/* ——————————————————————————————
   Footer
   —————————————————————————————— */

footer {
    max-width: var(--w);
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
}

.foot-search {
    position: relative;
}

#search-input {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    padding: 0.3rem 0;
    border: none;
    border-bottom: 1px solid var(--faint);
    background: transparent;
    color: var(--text);
    width: 8rem;
    transition: border-color 0.2s, width 0.3s;
}

#search-input::placeholder {
    color: var(--faint);
}

#search-input:focus {
    outline: none;
    border-bottom-color: var(--quiet);
    width: 100%;
}

.search-results {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 0;
    width: 100%;
    max-height: 16rem;
    overflow-y: auto;
    background: var(--bg);
    border: 1px solid var(--faint);
    margin-bottom: 0.4rem;
    z-index: 10;
}

.search-results.active { display: block; }

.search-result-item {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--faint);
}

.search-result-item:last-child { border-bottom: none; }

.search-result-item a {
    font-size: 0.85rem;
    color: var(--ink);
}

.search-result-item p {
    font-size: 0.7rem;
    color: var(--quiet);
    margin-top: 0.15rem;
    line-height: 1.4;
}

/* ——————————————————————————————
   Responsive
   —————————————————————————————— */

@media (max-width: 640px) {
    html { font-size: 16px; }
    .index { padding-top: 12vh; }
    article { padding-top: 10vh; }
    .title { font-size: 1.5rem; }
}