/* PeptideDefinition.com — Dictionary Platform CSS */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root,[data-theme="light"]{
    --paper:#ffffff;--paper2:#f5f7fb;--paper3:#eef1f7;
    --surface:#ffffff;--card:#ffffff;
    --ink:#0f172a;--ink2:#1e293b;
    --blue:#1d52d0;--blue-lt:#3068e8;--blue-glow:rgba(29,82,208,.06);
    --warm:#1d52d0;--warm2:#3068e8;--warm-glow:rgba(29,82,208,.06);
    --teal:#0e7490;--cyan:#0e7490;--emerald:#0f7b5f;
    --text:#364152;--text2:#5b6679;--text3:#657080;--text4:#8d96a6;--text-sec:#5b6679;--text-lt:#657080;
    --rule:rgba(15,23,42,.1);--rule2:rgba(15,23,42,.05);--border:rgba(15,23,42,.1);
    --shadow:0 1px 2px rgba(0,0,0,.04),0 4px 16px rgba(0,0,0,.04);
    --shadow2:0 2px 8px rgba(0,0,0,.06),0 8px 32px rgba(0,0,0,.06);
    --nav-bg:rgba(255,255,255,.92);--top-line-opacity:.85;
    --bg:#ffffff;--bg2:#f5f7fb;--bg3:#eef1f7;--card-bg:#ffffff;
    --serif:'Crimson Pro',Georgia,serif;
    --sans:'Outfit',-apple-system,sans-serif;
    --mono:'JetBrains Mono',monospace
}
[data-theme="dark"]{
    --paper:#050a12;--paper2:#0a1020;--paper3:#0f1730;
    --surface:#111b2e;--card:#111b2e;
    --ink:#f0f2f8;--ink2:#e0e4ed;--white:#f0f2f8;--navy:#f0f2f8;
    --blue:#3b82f6;--blue-lt:#60a5fa;--blue-glow:rgba(59,130,246,.12);
    --warm:#3b82f6;--warm2:#60a5fa;--warm-glow:rgba(59,130,246,.12);
    --teal:#22d3ee;--cyan:#22d3ee;--emerald:#10b981;
    --text:#c8d0e0;--text2:#8892a8;--text3:#657080;--text4:#4a5568;--text-sec:#8892a8;--text-lt:#657080;
    --rule:rgba(255,255,255,.08);--rule2:rgba(255,255,255,.04);--border:rgba(255,255,255,.06);
    --shadow:0 2px 8px rgba(0,0,0,.3);--shadow2:0 4px 16px rgba(0,0,0,.4);
    --nav-bg:rgba(5,10,18,.88);--top-line-opacity:1;
    --bg:#050a12;--bg2:#0a1020;--bg3:#0f1730;--card-bg:#111b2e
}

html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--text);line-height:1.72;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);line-height:1.2;font-weight:700;text-wrap:balance;transition:color .3s}
a{color:var(--warm);text-decoration:none;transition:color .2s}a:hover{color:var(--warm2)}
::selection{background:var(--warm);color:#fff}
.container{max-width:1100px;margin:0 auto;padding:0 2rem}
.skip-link{position:absolute;top:-100px;left:0;background:var(--warm);color:#fff;padding:.5rem 1rem;z-index:9999;font-size:.85rem;font-weight:600;border-radius:0 0 8px 0;transition:top .2s}.skip-link:focus{top:0;color:#fff}

/* NAV */
.nav{position:sticky;top:0;z-index:100;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);background:var(--nav-bg);border-bottom:1px solid var(--rule);transition:background .3s}
.nav::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--warm),var(--teal),var(--warm));opacity:var(--top-line-opacity)}
.nav-inner{max-width:1100px;margin:0 auto;padding:0 2rem;display:flex;justify-content:space-between;align-items:center;height:56px}
.logo{font-family:var(--serif);font-size:1.2rem;font-weight:800;color:var(--ink);display:flex;align-items:center;gap:.12rem;letter-spacing:-.02em}
.logo em{color:var(--warm);font-style:normal}.logo-dot{width:5px;height:5px;border-radius:50%;background:var(--teal);margin-left:.15rem}
.nav-links{display:flex;gap:0;align-items:center}
.nav-links a{color:var(--text3);font-size:.78rem;font-weight:500;padding:.35rem .65rem;border-radius:6px;transition:all .15s}
.nav-links a:hover,.nav-links a.act{color:var(--ink);background:var(--warm-glow)}
.theme-toggle{width:32px;height:32px;border-radius:50%;background:var(--paper2);border:1px solid var(--rule);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.8rem;transition:all .2s;margin-left:.5rem;flex-shrink:0}
.theme-toggle:hover{border-color:var(--warm)}
@media(max-width:768px){.nav-inner{padding:0 1rem;height:50px}.nav-links a{font-size:.72rem;padding:.3rem .4rem}.nav-links a:nth-child(n+5){display:none}}

/* HERO */
.hero{position:relative;padding:5rem 0 3.5rem;text-align:center;background:var(--paper);border-bottom:1px solid var(--rule)}
.hero::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:1px;height:40px;background:var(--rule)}
.hero-inner{position:relative;max-width:640px;margin:0 auto;padding:0 2rem}
.hero-badge{display:inline-block;font-family:var(--mono);font-size:.62rem;font-weight:500;letter-spacing:.15em;text-transform:uppercase;color:var(--warm);margin-bottom:1.4rem;padding:.3rem .8rem;border:1px solid var(--rule);border-radius:3px}
.hero-badge .pulse{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--teal);margin-right:.4rem;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.hero h1{font-weight:800;margin-bottom:.8rem;letter-spacing:-.03em;color:var(--ink);line-height:1.1}
.hero-line1{display:block;font-size:clamp(2.6rem,6vw,3.8rem)}
.hero-line2{display:block;font-size:clamp(1.3rem,2.8vw,1.7rem);font-weight:400;font-style:italic;color:var(--text2);letter-spacing:-.01em;margin-top:.3rem}
.hero-line2 em{color:var(--warm);font-style:italic}
.hero-rule{width:60px;height:2px;background:var(--warm);margin:1.2rem auto;border-radius:1px;opacity:.5}
.hero-sub{font-size:.95rem;color:var(--text3);max-width:480px;margin:0 auto 2rem;line-height:1.8}
.search-wrap{position:relative;max-width:520px;margin:0 auto}
.search-wrap input{width:100%;font-family:var(--sans);font-size:.92rem;color:var(--ink);background:var(--surface);border:1.5px solid var(--rule);border-radius:8px;padding:.7rem 1rem .7rem 2.6rem;outline:none;transition:border-color .2s,box-shadow .2s}
.search-wrap input:focus{border-color:var(--warm);box-shadow:0 0 0 3px var(--warm-glow)}
.search-wrap input::placeholder{color:var(--text4)}
.search-icon{position:absolute;left:.9rem;top:50%;transform:translateY(-50%);color:var(--text4);font-size:.9rem;pointer-events:none}
.search-count{position:absolute;right:.9rem;top:50%;transform:translateY(-50%);font-family:var(--mono);font-size:.65rem;color:var(--text4)}
.search-results{display:none;position:absolute;top:100%;left:0;right:0;background:var(--surface);border:1.5px solid var(--rule);border-radius:0 0 8px 8px;border-top:none;max-height:350px;overflow-y:auto;z-index:50;box-shadow:var(--shadow2)}
.search-results.active{display:block}
.search-result-item{padding:.6rem 1rem;border-bottom:1px solid var(--rule2);cursor:pointer;transition:background .1s}
.search-result-item:hover{background:var(--warm-glow)}
.search-result-word{font-family:var(--serif);font-weight:700;font-size:.92rem;color:var(--ink)}
.search-result-cat{font-family:var(--mono);font-size:.6rem;color:var(--text4);margin-left:.5rem;text-transform:uppercase;letter-spacing:.06em}
.search-result-def{font-size:.78rem;color:var(--text2);margin-top:.1rem}
.search-no-results{padding:.8rem 1rem;color:var(--text3);font-size:.85rem}
.hero-quick{display:flex;flex-wrap:wrap;gap:.4rem;justify-content:center;margin-top:1.5rem}
.hero-quick a{font-size:.78rem;padding:.25rem .6rem;border-radius:4px;background:var(--paper2);color:var(--text2);border:1px solid var(--rule);transition:all .15s}
.hero-quick a:hover{color:var(--warm);border-color:var(--warm)}

/* SECTIONS */
.sec{padding:3rem 0}.sec-border{border-bottom:1px solid var(--rule)}
.sec-header{text-align:center;margin-bottom:2rem}
.sec-label{font-family:var(--mono);font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--warm);margin-bottom:.4rem}
.sec-title{font-size:clamp(1.4rem,3vw,1.8rem);font-weight:700}.sec-title em{color:var(--warm);font-style:italic}
.defs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;max-width:960px;margin:0 auto}
@media(max-width:768px){.defs-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.defs-grid{grid-template-columns:1fr}}
.def-card{display:block;background:var(--surface);border:1px solid var(--rule);border-radius:10px;padding:1.3rem 1.4rem;transition:all .2s;text-decoration:none}
.def-card:hover{border-color:var(--warm);box-shadow:var(--shadow)}
.def-card-word{font-family:var(--serif);font-size:1.15rem;font-weight:700;color:var(--ink);margin-bottom:.1rem}
.def-card-phonetic{font-family:var(--mono);font-size:.72rem;color:var(--warm);margin-bottom:.4rem}
.def-card p{font-size:.82rem;color:var(--text2);line-height:1.6;margin-bottom:.5rem}
.def-card-link{font-family:var(--mono);font-size:.65rem;letter-spacing:.04em;color:var(--warm);font-weight:500}
.net-card{display:block;padding:.8rem 1rem;border-radius:8px;border:1px solid var(--rule);transition:all .15s;text-decoration:none}
.net-card:hover{border-color:var(--warm);background:var(--warm-glow)}
.net-card h4{font-size:.9rem;margin-bottom:.2rem;color:var(--ink)}
.net-card p{font-size:.78rem;color:var(--text3);margin:0;line-height:1.5}
.network-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem;max-width:960px;margin:0 auto}
.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;max-width:960px;margin:0 auto}
.path-step{text-align:center;padding:1.4rem 1.2rem;border:1px solid var(--rule);border-radius:10px;transition:all .2s;text-decoration:none;display:block;color:inherit}
.path-step:hover{border-color:var(--warm);background:var(--warm-glow)}
.path-step h3{font-size:.95rem;margin-bottom:.3rem;color:var(--ink)}
.path-step p{font-size:.8rem;color:var(--text3);margin:0;line-height:1.5}
.path-num{font-family:var(--serif);font-size:1.8rem;font-weight:800;color:var(--warm);margin-bottom:.4rem;opacity:.5}
.sec-alt{background:var(--paper2)}
.sec-desc{font-size:.9rem;color:var(--text3);max-width:500px;margin:0 auto}
@media(max-width:768px){.path-grid{grid-template-columns:repeat(2,1fr)}.network-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.path-grid{grid-template-columns:1fr}.network-grid{grid-template-columns:1fr}}

@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
.anim{animation:fadeUp .5s cubic-bezier(.16,1,.3,1) forwards;opacity:0}
.d1{animation-delay:.08s}.d2{animation-delay:.16s}.d3{animation-delay:.24s}.d4{animation-delay:.32s}

/* INNER PAGES */
.narrow{max-width:760px;margin:0 auto;padding:0 2rem}
.breadcrumb{font-size:.75rem;color:var(--text4);margin-bottom:.8rem}.breadcrumb a{color:var(--text3)}.breadcrumb a:hover{color:var(--warm)}.breadcrumb span{margin:0 .25rem}
.page-hero{padding:2rem 0 1.5rem;border-bottom:1px solid var(--rule);background:var(--paper)}
.page-hero h1{font-size:clamp(1.5rem,3.5vw,2rem);font-weight:800;letter-spacing:-.02em;margin-bottom:.3rem}.page-hero h1 em{color:var(--warm);font-style:italic}
.page-hero-sub{font-size:.95rem;color:var(--text2);line-height:1.72;max-width:600px}
.page-meta{display:flex;align-items:center;gap:.6rem;font-size:.72rem;color:var(--text4);flex-wrap:wrap;margin-bottom:.5rem}
.page-meta .cat{padding:.12rem .45rem;border-radius:3px;background:var(--warm-glow);color:var(--warm);font-weight:600;font-size:.65rem;text-transform:uppercase;letter-spacing:.08em;font-family:var(--mono)}

/* ARTICLE */
.article-body{padding:2rem 0 2.5rem}
.article-body h2{font-size:1.25rem;font-weight:700;margin:1.8rem 0 .5rem;letter-spacing:-.01em}.article-body h2 em{color:var(--warm);font-style:italic}
.article-body h3{font-size:1rem;font-weight:700;margin:1.2rem 0 .4rem}
.article-body p{font-size:.9rem;margin-bottom:.8rem;line-height:1.78}.article-body p strong{color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 .8rem 1.3rem;font-size:.9rem}.article-body li{margin-bottom:.2rem;line-height:1.7}

/* DICTIONARY ENTRY CARD */
.entry{background:var(--card);border:1px solid var(--rule);border-radius:12px;padding:1.8rem 2rem;margin-bottom:1rem;transition:all .3s;box-shadow:var(--shadow)}
.entry:hover{box-shadow:var(--shadow2)}
.entry-badges{display:flex;gap:.3rem;margin-bottom:.3rem}
.badge{font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;padding:.15rem .45rem;border-radius:4px}
.badge-pos{background:var(--paper2);color:var(--text3);font-style:italic;font-weight:500;text-transform:none;letter-spacing:0;font-family:var(--serif);font-size:.75rem}
.badge-beg{background:rgba(15,118,110,.08);color:var(--teal)}.badge-int{background:var(--warm-glow);color:var(--warm)}.badge-adv{background:rgba(109,40,217,.06);color:#7c3aed}
.entry-phonetic{font-family:var(--mono);font-size:.82rem;color:var(--warm);font-weight:500;margin-bottom:.1rem}
.entry-etym{font-size:.78rem;color:var(--text3);font-style:italic;margin-bottom:.8rem;padding-bottom:.8rem;border-bottom:1px solid var(--rule)}
.def-block{margin-bottom:.8rem}
.def-block-label{font-family:var(--mono);font-size:.62rem;font-weight:600;text-transform:uppercase;letter-spacing:.12em;color:var(--text4);margin-bottom:.25rem}
.simple-def{font-family:var(--serif);font-size:1.02rem;font-weight:500;color:var(--ink);line-height:1.55;padding:.7rem .9rem;background:var(--paper2);border-left:3px solid var(--warm);border-radius:0 6px 6px 0;margin-bottom:.8rem;transition:background .3s}
.key-facts{background:var(--paper2);border:1px solid var(--rule);border-radius:8px;padding:.8rem 1rem;margin:.8rem 0;transition:background .3s}
.key-facts ul{list-style:none;padding:0}.key-facts li{font-size:.84rem;color:var(--text);padding:.25rem 0 .25rem 1.1rem;position:relative;line-height:1.55}.key-facts li::before{content:'→';position:absolute;left:0;color:var(--warm);font-weight:600;font-size:.8rem}
.example-block{font-size:.85rem;color:var(--text2);font-style:italic;padding:.5rem .7rem .5rem .9rem;border-left:2px solid var(--rule);margin:.6rem 0;line-height:1.6}
.example-label{font-style:normal;font-size:.62rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text4);display:block;margin-bottom:.1rem;font-family:var(--mono)}
.entry-related{margin-top:1.2rem;padding-top:.8rem;border-top:1px solid var(--rule);display:flex;align-items:center;gap:.35rem;flex-wrap:wrap}
.related-label{font-family:var(--mono);font-size:.62rem;font-weight:600;text-transform:uppercase;letter-spacing:.12em;color:var(--text4);margin-right:.15rem}
.entry-related a{font-size:.75rem;padding:.2rem .5rem;border-radius:4px;background:var(--paper2);color:var(--warm);font-weight:500;border:1px solid var(--rule);transition:all .15s}
.entry-related a:hover{background:var(--warm-glow);border-color:var(--warm)}
.xlink{background:var(--paper2);border:1px solid var(--rule);border-radius:10px;padding:1.4rem 1.6rem;display:flex;justify-content:space-between;align-items:center;gap:1.5rem;margin:1.5rem 0;transition:background .3s}
.xlink h3{font-size:.95rem;font-weight:700;margin-bottom:.15rem}.xlink h3 em{color:var(--warm);font-style:italic}
.xlink p{color:var(--text2);font-size:.8rem}
.btn-blue{padding:.5rem 1.1rem;background:var(--warm);color:#fff;border-radius:6px;font-weight:600;font-size:.8rem;transition:all .2s;flex-shrink:0}.btn-blue:hover{background:var(--warm2);color:#fff}
.disclaim{margin-top:1.5rem;padding:1rem 1.2rem;background:var(--paper2);border:1px solid var(--rule);border-radius:8px;font-size:.78rem;color:var(--text3);transition:background .3s}
.disclaim h4{font-family:var(--mono);font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text4);margin-bottom:.3rem;font-weight:600}
.toc-box{background:var(--paper2);border:1px solid var(--rule);border-radius:8px;padding:1rem 1.2rem;margin:1rem 0;transition:background .3s}
.toc-box-title{font-family:var(--mono);font-size:.62rem;font-weight:600;text-transform:uppercase;letter-spacing:.12em;color:var(--text4);margin-bottom:.4rem}
.toc-box ol{padding-left:1.1rem}.toc-box li{font-size:.84rem;margin-bottom:.2rem;color:var(--text2)}.toc-box li a{color:var(--text)}.toc-box li a:hover{color:var(--warm)}
.faq-item{border-bottom:1px solid var(--rule);padding:.75rem 0}
.faq-q{font-family:var(--serif);font-size:.95rem;font-weight:700;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:.8rem}
.faq-q .arrow{font-size:.7rem;color:var(--text4);transition:transform .2s;flex-shrink:0}.faq-q.open .arrow{transform:rotate(180deg)}
.faq-a{font-size:.85rem;color:var(--text2);line-height:1.65;padding:.4rem 0 0;display:none}.faq-a.show{display:block}

/* GLOSSARY */
.gloss-search{max-width:100%;margin-bottom:1.2rem;background:var(--surface);border:1.5px solid var(--rule);border-radius:8px;display:flex;align-items:center;padding:.35rem .5rem .35rem 1rem;transition:border-color .2s;box-shadow:var(--shadow)}
.gloss-search:focus-within{border-color:var(--warm)}
.gloss-search input{flex:1;border:none;outline:none;font-family:var(--sans);font-size:.88rem;color:var(--ink);background:transparent}.gloss-search input::placeholder{color:var(--text4)}
.gloss-search .search-count{font-family:var(--mono);font-size:.62rem;color:var(--text4);white-space:nowrap}
.alpha-nav{display:flex;gap:.2rem;flex-wrap:wrap;margin-bottom:1.5rem;justify-content:center}
.alpha-nav a{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:4px;font-family:var(--serif);font-size:.88rem;font-weight:700;color:var(--text3);transition:all .12s;border:1px solid transparent}
.alpha-nav a:hover{color:var(--warm);background:var(--warm-glow);border-color:var(--warm)}
.alpha-nav a.disabled{opacity:.25;pointer-events:none}
.gloss-section{margin-bottom:2rem}.gloss-section.hidden{display:none}
.gloss-letter{font-family:var(--serif);font-size:2.2rem;font-weight:800;color:var(--warm);margin-bottom:.4rem;padding-bottom:.3rem;border-bottom:2px solid var(--rule);letter-spacing:-.02em}
.gloss-entry{padding:.5rem 0;border-bottom:1px solid var(--rule2);display:grid;grid-template-columns:minmax(160px,auto) 1fr;gap:.4rem 1.2rem;align-items:baseline}
.gloss-entry:last-child{border-bottom:none}.gloss-entry.hidden{display:none}
.gloss-word{font-family:var(--serif);font-size:.95rem;font-weight:700;color:var(--ink)}
.gloss-word a{color:var(--ink);text-decoration:none;border-bottom:1px solid transparent;transition:all .15s}
.gloss-word a:hover{color:var(--warm);border-bottom-color:var(--warm)}
.gloss-brief{font-size:.82rem;color:var(--text2);line-height:1.55}
@media(max-width:600px){.gloss-entry{grid-template-columns:1fr;gap:.1rem}}
.hidden{display:none}

/* FOOTER */
.footer{background:var(--paper2);border-top:1px solid var(--rule);padding:3rem 0 1.5rem;margin-top:2rem;transition:background .3s}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2rem;max-width:1100px;margin:0 auto;padding:0 2rem}
.footer-brand .logo{margin-bottom:.5rem}.footer-brand p{font-size:.8rem;color:var(--text3);line-height:1.6}
.footer-col h4{font-family:var(--mono);font-size:.6rem;font-weight:600;text-transform:uppercase;letter-spacing:.12em;color:var(--text4);margin-bottom:.5rem}
.footer-col a{display:block;font-size:.8rem;color:var(--text2);padding:.2rem 0;transition:color .15s}.footer-col a:hover{color:var(--warm)}
.footer-bottom{max-width:1100px;margin:2rem auto 0;padding:1rem 2rem 0;border-top:1px solid var(--rule);display:flex;justify-content:space-between;font-size:.72rem;color:var(--text4);flex-wrap:wrap;gap:.5rem}
.footer-bottom a{color:var(--text3)}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:1.5rem}.xlink{flex-direction:column;text-align:center}.entry{padding:1.3rem 1.4rem}}
@media print{.nav,.skip-link,.search-wrap,.gloss-search,.xlink,.footer,.hero-badge,.theme-toggle{display:none!important}body{color:#000;background:#fff}a{color:#000;text-decoration:underline}}