/*
Theme Name: Frontispiece
Theme URI: https://andrijam.com
Author: Andrija Milojevic
Description: A quiet, book-like dark theme for a personal ideas blog. Serif frontispiece typography, topic filtering via categories, Tokyo Night–adjacent palette.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: frontispiece
*/

/* ── tokens ─────────────────────────────────── */
:root{
  --bg:#17181f;
  --fg:#c9d0ee;
  --bright:#f0f2ff;
  --muted:#7d84ab;
  --faint:#43476a;
  --line:#242637;
  --blue:#7aa2f7;
  --cyan:#7dcfff;
  --purple:#bb9af7;
  --serif:'Fraunces',Georgia,serif;
  --body:'Inter',-apple-system,sans-serif;
  --mono:'JetBrains Mono',Consolas,monospace;
}

/* ── base ───────────────────────────────────── */
*{margin:0;padding:0;box-sizing:border-box}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{background:var(--bg);color:var(--fg);font-family:var(--body);line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .15s,border-color .15s}
a:focus-visible,input:focus-visible,button:focus-visible,textarea:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:2px}
::selection{background:#33467c;color:#fff}
img{max-width:100%;height:auto}
.wrap{width:min(620px,90%);margin:0 auto}
.screen-reader-text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ── header ─────────────────────────────────── */
.site-header{padding:3.2rem 0 0}
.site-header .top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:5rem;gap:1rem;flex-wrap:wrap}
.site-name{font-family:var(--serif);font-weight:400;font-size:1.05rem;color:var(--bright);letter-spacing:.01em}
.site-nav ul{display:flex;gap:1.5rem;list-style:none}
.site-nav a{font-size:.82rem;color:var(--muted);letter-spacing:.02em}
.site-nav a:hover{color:var(--blue)}
.site-nav .current-menu-item a,.site-nav .current_page_item a{color:var(--blue)}

/* ── frontispiece intro (front page) ────────── */
.intro{text-align:center;margin-bottom:5.5rem}
.intro h1{font-family:var(--serif);font-weight:300;font-size:clamp(2.1rem,5.5vw,3rem);line-height:1.22;color:var(--bright);letter-spacing:-.01em}
.intro h1 em{font-style:italic;font-weight:400;color:var(--purple)}
.intro .sub{margin-top:1.2rem;color:var(--muted);font-size:.98rem}
.ornament{display:flex;align-items:center;gap:1rem;justify-content:center;margin-top:2.6rem;color:var(--faint)}
.ornament::before,.ornament::after{content:'';height:1px;width:72px;background:linear-gradient(90deg,transparent,var(--faint))}
.ornament::after{background:linear-gradient(90deg,var(--faint),transparent)}
.ornament .mark{font-family:var(--serif);font-style:italic;font-size:.9rem;color:var(--blue)}

/* ── latest essay ───────────────────────────── */
.eyebrow{font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--faint);margin-bottom:1.1rem;font-family:var(--body)}
.latest{margin-bottom:5rem}
.latest a.essay{display:block}
.latest h2{font-family:var(--serif);font-weight:400;font-size:clamp(1.5rem,4vw,1.9rem);line-height:1.3;color:var(--bright);margin-bottom:.6rem;transition:color .15s}
.latest a.essay:hover h2{color:var(--blue)}
.latest .excerpt{color:var(--muted);font-size:.95rem;max-width:56ch;margin-bottom:.9rem}
.latest .meta{font-family:var(--mono);font-size:.74rem;color:var(--faint)}
.latest a.essay:hover .meta{color:var(--blue)}

/* ── topic filter ───────────────────────────── */
.filter{display:flex;flex-wrap:wrap;gap:.4rem 1.3rem;margin-bottom:2.4rem;align-items:baseline}
.filter a{font-family:var(--serif);font-style:italic;font-weight:300;font-size:1rem;color:var(--muted);padding:.1rem 0;border-bottom:1px solid transparent}
.filter a:hover{color:var(--bright)}
.filter a.on{color:var(--blue);border-bottom-color:var(--blue)}
.filter .sep{color:var(--faint);font-size:.8rem;user-select:none}

/* ── post index ─────────────────────────────── */
.index{margin-bottom:5.5rem}
.year-group{margin-bottom:2.6rem}
.year{font-family:var(--serif);font-style:italic;font-weight:300;font-size:1.15rem;color:var(--faint);margin-bottom:.7rem}
.post-row{display:flex;align-items:baseline;gap:1rem;padding:.66rem 0;border-bottom:1px solid var(--line)}
.post-row .t{font-size:1rem;color:var(--fg);line-height:1.55;flex:1;transition:color .15s}
.post-row .tags{font-family:var(--mono);font-size:.68rem;color:var(--faint);white-space:nowrap;transition:color .15s}
.post-row .d{font-family:var(--mono);font-size:.72rem;color:var(--faint);white-space:nowrap;transition:color .15s}
.post-row:hover .t{color:var(--bright)}
.post-row:hover .d{color:var(--blue)}
.post-row:hover .tags{color:var(--purple)}
.post-row:last-child{border-bottom:none}
.post-row.hidden,.year-group.hidden{display:none}
.no-match{display:none;color:var(--faint);font-family:var(--serif);font-style:italic;text-align:center;padding:1.5rem 0}
.no-match.show{display:block}
@media(max-width:520px){
  .post-row{flex-wrap:wrap;gap:.2rem .9rem}
  .post-row .t{flex-basis:100%}
}

/* ── page / essay frontispiece head ─────────── */
.page-head{text-align:center;margin-bottom:4rem}
.page-head h1{font-family:var(--serif);font-weight:300;font-size:clamp(1.9rem,5.5vw,2.8rem);line-height:1.25;color:var(--bright);letter-spacing:-.01em}
.page-head .head-eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);margin-bottom:1.3rem}
.page-head .head-eyebrow a{color:var(--purple)}
.page-head .head-eyebrow a:hover{color:var(--cyan)}
.page-head .dek{margin-top:1rem;font-family:var(--serif);font-style:italic;font-weight:300;font-size:1.1rem;color:var(--muted);max-width:44ch;margin-left:auto;margin-right:auto}

/* ── entry content (posts + pages, Gutenberg) ─ */
.entry-content{margin-bottom:4rem}
.entry-content>*{max-width:62ch}
.entry-content p{font-size:1.02rem;color:var(--fg);margin-bottom:1.4rem}
.single .entry-content>p:first-of-type::first-letter{font-family:var(--serif);font-weight:400;font-size:3.4em;float:left;line-height:.82;padding:.06em .12em 0 0;color:var(--purple)}
.entry-content h2{font-family:var(--serif);font-weight:400;font-size:1.45rem;line-height:1.35;color:var(--bright);margin:2.8rem 0 1rem}
.entry-content h3{font-family:var(--serif);font-style:italic;font-weight:300;font-size:1.2rem;color:var(--muted);margin:2.2rem 0 .8rem}
.entry-content a{color:var(--blue);border-bottom:1px solid rgba(122,162,247,.35)}
.entry-content a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.entry-content blockquote,.entry-content .wp-block-quote{font-family:var(--serif);font-style:italic;font-weight:300;font-size:1.22rem;line-height:1.6;color:var(--muted);border-left:2px solid var(--purple);padding:.3rem 0 .3rem 1.4rem;margin:2.2rem 0}
.entry-content .wp-block-quote cite{font-family:var(--mono);font-style:normal;font-size:.74rem;color:var(--faint)}
.entry-content ul,.entry-content ol{margin:0 0 1.4rem 1.3rem}
.entry-content li{margin-bottom:.5rem}
.entry-content li::marker{color:var(--faint)}
.entry-content strong{color:var(--bright);font-weight:500}
.entry-content code{font-family:var(--mono);font-size:.88em;background:#1e2030;border:1px solid var(--line);border-radius:4px;padding:.1em .4em}
.entry-content pre{background:#1e2030;border:1px solid var(--line);border-radius:6px;padding:1rem 1.2rem;overflow-x:auto;margin-bottom:1.4rem;font-family:var(--mono);font-size:.85rem;line-height:1.7}
.entry-content pre code{background:none;border:none;padding:0}
.entry-content img,.entry-content .wp-block-image{border-radius:6px;margin:1.8rem 0}
.entry-content figcaption{font-family:var(--mono);font-size:.72rem;color:var(--faint);text-align:center;margin-top:.5rem}
.entry-content hr,.entry-content .wp-block-separator{border:none;border-top:1px solid var(--line);margin:2.5rem auto;max-width:120px}
.entry-content table{border-collapse:collapse;width:100%;margin-bottom:1.4rem;font-size:.92rem}
.entry-content th,.entry-content td{border-bottom:1px solid var(--line);padding:.5rem .7rem;text-align:left}
.entry-content th{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}

/* generic form styling (contact plugins, etc.) */
.entry-content input[type=text],.entry-content input[type=email],.entry-content input[type=url],.entry-content textarea{width:100%;background:transparent;border:none;border-bottom:1px solid var(--faint);padding:.55rem .1rem;color:var(--fg);font-family:var(--body);font-size:.95rem;resize:vertical}
.entry-content input:focus,.entry-content textarea:focus{border-bottom-color:var(--blue);outline:none}
.entry-content label{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:.4rem}
.entry-content button,.entry-content input[type=submit],.entry-content .wp-block-button__link{background:transparent;border:1px solid var(--blue);border-radius:999px;color:var(--blue);font-family:var(--body);font-weight:500;font-size:.92rem;cursor:pointer;padding:.65rem 2rem;transition:color .15s,border-color .15s,background .15s}
.entry-content button:hover,.entry-content input[type=submit]:hover,.entry-content .wp-block-button__link:hover{color:var(--cyan);border-color:var(--cyan);background:rgba(125,207,255,.06)}

/* ── essay endmatter ────────────────────────── */
.endmark{display:flex;justify-content:center;margin:3rem 0;color:var(--faint);font-family:var(--serif);font-style:italic}
.filed{display:flex;align-items:baseline;flex-wrap:wrap;gap:.6rem;justify-content:center;margin-bottom:3.5rem}
.filed .lbl{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}
.filed a{font-family:var(--mono);font-size:.76rem;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:.26rem .85rem}
.filed a:hover{color:var(--blue);border-color:var(--blue)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:1.6rem 0;margin-bottom:3.4rem}
.pager a{display:block}
.pager .dir{font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:.35rem;display:block}
.pager .pt{font-family:var(--serif);font-weight:400;font-size:1.02rem;line-height:1.4;color:var(--fg);transition:color .15s}
.pager a:hover .pt{color:var(--blue)}
.pager .next{text-align:right}
@media(max-width:520px){.pager{grid-template-columns:1fr}.pager .next{text-align:left}}

/* ── subscribe / touch ──────────────────────── */
.updates{text-align:center;padding:2.6rem 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:3.4rem}
.updates h2{font-family:var(--serif);font-weight:400;font-size:1.25rem;color:var(--bright);margin-bottom:.35rem}
.updates p{color:var(--muted);font-size:.9rem;margin-bottom:1.5rem}
.updates form{max-width:400px;margin:0 auto}
.updates input[type=email]{background:transparent;border:none;border-bottom:1px solid var(--faint);padding:.5rem .1rem;color:var(--fg);font-family:var(--body);font-size:.92rem;min-width:0;text-align:center;width:70%}
.updates input[type=email]:focus{border-bottom-color:var(--blue);outline:none}
.updates button,.updates input[type=submit]{background:transparent;border:none;color:var(--blue);font-family:var(--body);font-weight:500;font-size:.92rem;cursor:pointer;padding:.5rem .3rem}
.updates button:hover,.updates input[type=submit]:hover{color:var(--cyan)}
.updates .substack-link{color:var(--blue);border-bottom:1px solid rgba(122,162,247,.35)}
.updates .substack-link:hover{color:var(--cyan)}
.touch{text-align:center;color:var(--muted);font-size:.9rem;margin-bottom:5rem}
.touch a{color:var(--blue);border-bottom:1px solid rgba(122,162,247,.35)}
.touch a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}

/* ── comments (minimal) ─────────────────────── */
.comments-area{margin-bottom:4rem;border-top:1px solid var(--line);padding-top:2.5rem}
.comments-area .comments-title{font-family:var(--serif);font-weight:400;font-size:1.2rem;color:var(--bright);margin-bottom:1.5rem}
.comment-list{list-style:none}
.comment-list .comment{padding:1rem 0;border-bottom:1px solid var(--line)}
.comment-author{font-family:var(--mono);font-size:.78rem;color:var(--purple)}
.comment-metadata a{font-family:var(--mono);font-size:.7rem;color:var(--faint)}
.comment-content p{font-size:.95rem;margin:.4rem 0}
.comment-reply-link{font-family:var(--mono);font-size:.72rem;color:var(--blue)}
.comment-respond{margin-top:2rem}
.comment-respond .comment-reply-title{font-family:var(--serif);font-weight:400;font-size:1.1rem;color:var(--bright);margin-bottom:1rem}
.comment-form label{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:.3rem}
.comment-form input[type=text],.comment-form input[type=email],.comment-form input[type=url],.comment-form textarea{width:100%;background:transparent;border:none;border-bottom:1px solid var(--faint);padding:.5rem .1rem;color:var(--fg);font-family:var(--body);font-size:.92rem;margin-bottom:1.2rem}
.comment-form input:focus,.comment-form textarea:focus{border-bottom-color:var(--blue);outline:none}
.comment-form input[type=submit]{background:transparent;border:1px solid var(--blue);border-radius:999px;color:var(--blue);font-weight:500;cursor:pointer;padding:.6rem 1.8rem;width:auto}
.comment-form input[type=submit]:hover{color:var(--cyan);border-color:var(--cyan)}

/* ── footer ─────────────────────────────────── */
.site-footer{padding:0 0 3.5rem;text-align:center}
.socials{display:flex;flex-wrap:wrap;gap:.3rem 1.4rem;justify-content:center;font-size:.8rem;color:var(--muted);margin-bottom:1rem;list-style:none}
.socials a:hover{color:var(--blue)}
.fine{font-family:var(--serif);font-style:italic;font-size:.82rem;color:var(--faint)}

/* ── archive title (category pages) ─────────── */
.archive .page-head h1 span{color:var(--purple);font-style:italic}

/* ── homepage innovation animation ── */
#fp-innovation{
  position:relative;width:min(560px,92vw);aspect-ratio:1/1;margin:2.5rem auto 0;
  display:flex;align-items:center;justify-content:center;
}
#fp-innovation svg{width:100%;height:100%;overflow:visible}
#fp-innovation .domain{fill:none;stroke-width:1.4;opacity:.6;transition:stroke 1.2s ease}
#fp-innovation .fillgroup>*{opacity:.05;transition:fill 1.2s ease}
#fp-innovation .xhatch{stroke:none}
#fp-innovation .net-edge{stroke:var(--blue);stroke-width:.6;opacity:.28}
#fp-innovation .net-node{fill:var(--bright);opacity:.7}
#fp-innovation .seed{fill:none;stroke-width:1.3}
#fp-innovation .core{fill:none;stroke:var(--cyan);stroke-width:1}
#fp-innovation .corefill{fill:var(--cyan);opacity:0}