:root{--bg:#0d1029;--surface:#161a3a;--surface2:#1e2350;--line:#2c3268;--accent:#8b5cf6;--accent2:#a78bfa;--text:#e6e8f5;--muted:#a3a8c9;--warn:#f5c26b;--radius:14px;--serif:Georgia,"Times New Roman",Cambria,serif;--sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:5rem}
body{margin:0;background:var(--bg);color:var(--text);font:1.0625rem/1.7 var(--sans)}
img,svg{max-width:100%;height:auto}
a{color:var(--accent2);text-underline-offset:.18em}
a:hover{color:#c4b5fd}
:focus-visible{outline:3px solid var(--accent2);outline-offset:2px;border-radius:4px}
main:focus{outline:none}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:.6rem 1rem;z-index:100;border-radius:0 0 8px 0}
.skip:focus{left:0}
.wrap{max-width:72rem;margin:0 auto;padding:0 1rem}
h1,h2,h3{font-family:var(--serif);line-height:1.25;font-weight:700;color:#f3f0ff}
h1{font-size:clamp(1.9rem,4.5vw,2.75rem);margin:.4rem 0 .8rem}
h2{font-size:1.55rem;margin:2.2rem 0 .8rem}
h3{font-size:1.2rem;margin:1.6rem 0 .5rem}
.muted{color:var(--muted)}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(13,16,41,.92);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}
.hdr{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.4rem 1rem;padding-top:.7rem;padding-bottom:.7rem}
.logo{display:flex;align-items:center;gap:.5rem;color:var(--text);text-decoration:none;font-family:var(--serif);font-weight:700;font-size:1.12rem}
.nav{display:flex;gap:.25rem;list-style:none;margin:0;padding:0}
.nav a{display:block;padding:.35rem .7rem;border-radius:8px;color:var(--muted);text-decoration:none;font-size:.95rem}
.nav a:hover{background:var(--surface);color:var(--text)}
/* hero */
.hero{background:radial-gradient(60rem 24rem at 80% -10%,rgba(139,92,246,.28),transparent 70%),linear-gradient(180deg,#121640,var(--bg));border-bottom:1px solid var(--line);padding:3rem 0 2.5rem}
.hero .lead{max-width:44rem}
.kicker{margin:0;text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;font-weight:700;color:var(--accent2)}
.kicker a{text-decoration:none}
.lead{font-size:1.15rem;color:#cfd2ea;max-width:68ch}
/* search */
.search{margin-top:1.6rem;max-width:40rem}
.search label{display:block;font-weight:600;margin-bottom:.35rem}
.search input{width:100%;padding:.8rem 1rem;font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:10px}
.search input:focus{border-color:var(--accent2)}
.search input::placeholder{color:#8a8fb4}
.search-status{color:var(--muted);font-size:.92rem;margin:.5rem 0 0;min-height:1.4em}
.search-results{list-style:none;padding:0;margin:.4rem 0 0}
.search-results li{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:.7rem 1rem;margin-bottom:.5rem}
.search-results a{font-weight:600;display:block}
.search-results span{color:var(--muted);font-size:.93rem}
/* blocks & cards */
.block{margin:2.5rem 0}
.grid{display:grid;gap:1rem}
.cards{grid-template-columns:repeat(auto-fill,minmax(16rem,1fr))}
.card,.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem 1.25rem;position:relative;transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card p{margin:.4rem 0 0;color:var(--muted);font-size:.96rem;line-height:1.55}
.card-title{font-size:1.15rem;margin:.2rem 0 0}
.card-title a{color:var(--text);text-decoration:none}
.card-title a::after{content:"";position:absolute;inset:0;border-radius:var(--radius)}
.card-title a:focus-visible{outline:none}
.card:focus-within{outline:3px solid var(--accent2);outline-offset:2px}
.card-cat{font-size:.75rem!important;text-transform:uppercase;letter-spacing:.07em;font-weight:700;color:var(--accent2)!important;margin:0!important}
.count{font-size:.85rem!important;color:var(--accent2)!important}
.cat-card{border-top:3px solid var(--accent)}
.two{grid-template-columns:1fr;margin:2.5rem 0}
.panel h2{margin-top:.2rem;font-size:1.3rem}
.panel p{color:#cfd2ea}
.warn{border-color:#5b4a2a}
.badge18{display:inline-block;font:700 .78rem/1 var(--sans);color:#1a1300;background:var(--warn);border-radius:6px;padding:.28rem .4rem;vertical-align:middle;margin-right:.35rem}
/* page/article */
.page-head{padding:1rem 0 1.5rem}
.narrow{max-width:44rem;padding-top:3rem;padding-bottom:4rem}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.2rem;margin:1.2rem 0 0;padding:0;font-size:.9rem;color:var(--muted)}
.crumbs li+li::before{content:"›";margin:0 .45rem;color:#6d73a3}
.crumbs a{color:var(--muted)}
.article-wrap{max-width:calc(68ch + 2rem)}
.article{padding-bottom:2rem}
.article-head{margin-top:1.2rem}
.meta{color:var(--muted);font-size:.9rem;margin:0}
.kisa-cevap{background:linear-gradient(135deg,rgba(139,92,246,.18),rgba(139,92,246,.06));border:1px solid rgba(167,139,250,.45);border-left:4px solid var(--accent);border-radius:var(--radius);padding:1rem 1.2rem;margin:1.5rem 0}
.kc-title{margin:0 0 .3rem;font-weight:700;color:var(--accent2);text-transform:uppercase;letter-spacing:.06em;font-size:.82rem}
.kisa-cevap p:last-child{margin:0}
.prose{max-width:68ch}
.prose p,.prose li{color:#dcdff0}
.prose li{margin:.3rem 0}
.formula{background:var(--surface);border:1px dashed var(--line);border-radius:10px;padding:.6rem 1rem;font-weight:600;color:#f3f0ff}
.table-wrap{overflow-x:auto;margin:1.2rem 0;border:1px solid var(--line);border-radius:12px}
table{border-collapse:collapse;width:100%;font-size:.95rem;min-width:30rem}
caption{text-align:left;padding:.7rem 1rem;color:var(--muted);font-size:.88rem;background:var(--surface)}
th,td{padding:.6rem 1rem;text-align:left;border-top:1px solid var(--line);vertical-align:top}
th{background:var(--surface2);color:#f3f0ff;font-weight:600}
tbody tr:nth-child(even){background:rgba(22,26,58,.6)}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin:.6rem 0;padding:0 1.1rem}
.faq summary{cursor:pointer;font-weight:600;padding:.85rem 0;list-style-position:outside}
.faq details[open] summary{color:var(--accent2)}
.faq details p{margin:0 0 1rem}
.related{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.3rem;margin:2.5rem 0 1.5rem}
.related h2{margin:.3rem 0 .6rem;font-size:1.25rem}
.related ul{list-style:none;margin:0;padding:0}
.related li{padding:.55rem 0;border-top:1px solid var(--line)}
.related li:first-child{border-top:0}
.related a{font-weight:600;display:block}
.related span{color:var(--muted);font-size:.92rem}
.note18{font-size:.92rem;color:var(--muted)}
/* glossary */
.az ul{display:flex;flex-wrap:wrap;gap:.35rem;list-style:none;padding:0;margin:1rem 0}
.az a{display:inline-block;min-width:2.2rem;text-align:center;padding:.3rem .5rem;background:var(--surface);border:1px solid var(--line);border-radius:8px;text-decoration:none;font-weight:700}
.az a:hover{border-color:var(--accent)}
.az-letter{border-bottom:1px solid var(--line);padding-bottom:.3rem;color:var(--accent2)}
.glossary dt{font-weight:700;color:#f3f0ff;margin-top:1rem}
.glossary dd{margin:.2rem 0 0;color:#dcdff0}
.glossary dt:target{color:var(--accent2)}
.glossary dt:target+dd{background:rgba(139,92,246,.12);border-radius:8px;padding:.3rem .5rem}
/* buttons, footer */
.btn{display:inline-block;padding:.6rem 1.1rem;border-radius:10px;background:var(--accent);color:#fff;text-decoration:none;font-weight:600;margin:.3rem .3rem 0 0}
.btn:hover{background:#7c3aed;color:#fff}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.site-footer{border-top:1px solid var(--line);background:#0a0c22;margin-top:3rem;padding:2rem 0 1.5rem;font-size:.93rem;color:var(--muted)}
.foot-grid{display:grid;gap:1.5rem}
.foot-title{font-family:var(--serif);font-weight:700;color:var(--text);margin:0 0 .4rem;font-size:1.05rem}
.site-footer ul{list-style:none;padding:0;margin:0;columns:2;column-gap:1rem}
.site-footer li{margin:.2rem 0}
.site-footer a{color:#c4c8e6}
.foot-ext{margin:1.5rem 0 .3rem}
.foot-copy{margin:0;font-size:.85rem}
@media (min-width:48rem){.two{grid-template-columns:1fr 1fr}.foot-grid{grid-template-columns:2fr 1fr}.hero{padding:4rem 0 3rem}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}.card:hover{transform:none}}