/* Tasarım Rehberi – tema */
:root {
    --bg: #ffffff;
    --bg-soft: #f6f7f9;
    --surface: #ffffff;
    --text: #1b1f24;
    --text-soft: #4a525d;
    --muted: #6b7380;
    --border: #e3e6ea;
    --accent: #2f5bea;
    --accent-soft: #eaf0ff;
    --accent-text: #ffffff;
    --code-bg: #0f172a;
    --code-text: #e2e8f0;
    --inline-code-bg: #eef1f5;
    --ok: #127a3e;
    --err: #b42318;
    --radius: 10px;
    --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 1px 3px rgba(16, 24, 40, .06);
    --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Consolas, monospace;
    color-scheme: light;
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #0f1115; --bg-soft: #161a20; --surface: #151920; --text: #e6e8eb; --text-soft: #b8bec7; --muted: #8b939e;
        --border: #262c35; --accent: #7aa2ff; --accent-soft: #1a2440; --accent-text: #0f1115; --code-bg: #0b0e13;
        --inline-code-bg: #1f252e; --ok: #4ade80; --err: #f87171; color-scheme: dark;
    }
}
:root[data-theme="dark"] {
    --bg: #0f1115; --bg-soft: #161a20; --surface: #151920; --text: #e6e8eb; --text-soft: #b8bec7; --muted: #8b939e;
    --border: #262c35; --accent: #7aa2ff; --accent-soft: #1a2440; --accent-text: #0f1115; --code-bg: #0b0e13;
    --inline-code-bg: #1f252e; --ok: #4ade80; --err: #f87171; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.7 var(--font); }
img { max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
h1, h2, h3, h4 { line-height: 1.25; letter-spacing: -.01em; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 820px; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-text); padding: 8px 12px; border-radius: 6px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Başlık */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: saturate(1.4) blur(8px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; gap: 20px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); flex-shrink: 0; }
.brand-mark { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 9px; background: var(--accent); color: var(--accent-text); font-weight: 800; font-size: 14px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text small { color: var(--muted); font-size: 12px; }
.main-nav { flex: 1; }
.main-nav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.main-nav a { display: block; padding: 6px 10px; border-radius: 8px; color: var(--text-soft); text-decoration: none; font-size: 15px; }
.main-nav a:hover, .main-nav a[aria-current] { background: var(--bg-soft); color: var(--text); }
.nav-toggle { display: none; background: none; border: 0; color: var(--text); padding: 6px; cursor: pointer; }
.header-tools { display: flex; align-items: center; gap: 8px; }
.search-form input { width: 180px; padding: 7px 12px; border: 1px solid var(--border); border-radius: 999px; background: var(--bg-soft); color: var(--text); font: inherit; font-size: 14px; }
.theme-toggle { background: none; border: 1px solid var(--border); border-radius: 999px; width: 34px; height: 34px; display: grid; place-items: center; color: var(--text-soft); cursor: pointer; }

@media (max-width: 900px) {
    .nav-toggle { display: block; }
    .main-nav { order: 3; flex: 0; }
    .header-inner { flex-wrap: wrap; justify-content: space-between; }
    .main-nav ul { display: none; position: absolute; left: 0; right: 0; top: 64px; background: var(--bg); border-bottom: 1px solid var(--border); padding: 8px 16px 16px; flex-direction: column; }
    .main-nav.open ul { display: flex; }
    .search-form input { width: 130px; }
    .brand-text small { display: none; }
}
@media (max-width: 480px) { .search-form { display: none; } }

/* Yerleşim */
main { min-height: 60vh; padding: 28px 0 56px; }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 48px; }
@media (max-width: 960px) { .layout { grid-template-columns: 1fr; } }
.hero { padding: 16px 0 24px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.hero h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin: 0 0 8px; }
.hero p { color: var(--text-soft); margin: 0; font-size: 1.1rem; max-width: 60ch; }
.section-title { font-size: 1.05rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 32px 0 16px; }
.archive-head { margin-bottom: 24px; }
.archive-head h1 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); margin: 0 0 8px; }
.kicker { margin: 0; text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; font-weight: 700; color: var(--accent); }
.archive-intro { color: var(--text-soft); }

/* Kartlar */
.cards { display: grid; gap: 14px; }
.cards-2 { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); transition: border-color .15s; }
.card:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
.card-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--muted); font-size: .82rem; }
.card-title { font-size: 1.2rem; margin: 8px 0 6px; }
.card-title a { color: var(--text); text-decoration: none; }
.card-title a:hover { color: var(--accent); }
.card-excerpt { margin: 0; color: var(--text-soft); font-size: .95rem; line-height: 1.6; }
.chip { display: inline-block; padding: 2px 9px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: .78rem; font-weight: 600; text-decoration: none; }
.tag { color: var(--text-soft); font-size: .88rem; text-decoration: none; }
.tag:hover { color: var(--accent); }

/* Kenar çubuğu */
.sidebar { display: flex; flex-direction: column; gap: 28px; }
.widget-title { font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 10px; }
.cat-list { list-style: none; margin: 0; padding: 0; }
.cat-list li { display: flex; justify-content: space-between; padding: 6px 0 6px calc(var(--d) * 14px); border-bottom: 1px dashed var(--border); font-size: .95rem; }
.cat-list a { color: var(--text); text-decoration: none; }
.cat-list a:hover { color: var(--accent); }
.count { color: var(--muted); font-size: .82rem; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-cloud a { padding: 3px 10px; border: 1px solid var(--border); border-radius: 999px; font-size: .83rem; color: var(--text-soft); text-decoration: none; }
.tag-cloud a:hover { border-color: var(--accent); color: var(--accent); }

/* Sayfalama */
.pagination { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 28px; }
.pagination a, .pagination span { padding: 6px 12px; border: 1px solid var(--border); border-radius: 8px; text-decoration: none; font-size: .92rem; color: var(--text); }
.pagination [aria-current] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.pagination .gap { border: 0; }

/* Breadcrumb */
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0 0 14px; padding: 0; font-size: .85rem; color: var(--muted); }
.breadcrumbs li + li::before { content: "›"; margin-right: 6px; }
.breadcrumbs a { color: var(--muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--accent); }

/* Yazı */
.post-layout { max-width: 780px; }
.post-head h1 { font-size: clamp(1.75rem, 4.2vw, 2.5rem); margin: 0 0 12px; }
.post-meta { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--muted); font-size: .88rem; margin-bottom: 24px; }
.post-meta a { color: var(--text-soft); }
.post-cover { margin: 0 0 24px; }
.post-cover img { border-radius: var(--radius); width: 100%; }
.tldr { background: var(--accent-soft); border-left: 4px solid var(--accent); border-radius: 0 var(--radius) var(--radius) 0; padding: 14px 18px; margin: 0 0 24px; }
.tldr h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; margin: 0 0 4px; color: var(--accent); }
.tldr p { margin: 0; }
.toc { border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 18px; margin: 0 0 28px; background: var(--bg-soft); }
.toc summary { font-weight: 700; cursor: pointer; }
.toc ol { margin: 8px 0 0; padding-left: 20px; font-size: .95rem; }
.toc .toc-l3 { margin-left: 16px; list-style: circle; }
.toc a { color: var(--text-soft); text-decoration: none; }
.toc a:hover { color: var(--accent); }

.prose { overflow-wrap: break-word; }
.prose h2 { font-size: 1.55rem; margin: 2em 0 .6em; }
.prose h3 { font-size: 1.25rem; margin: 1.6em 0 .5em; }
.prose h2 .anchor, .prose h3 .anchor { margin-left: 8px; color: var(--muted); text-decoration: none; opacity: 0; font-weight: 400; }
.prose h2:hover .anchor, .prose h3:hover .anchor, .anchor:focus { opacity: 1; }
.prose img { border-radius: 8px; }
.prose blockquote { margin: 1.4em 0; padding: 4px 18px; border-left: 3px solid var(--border); color: var(--text-soft); }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li { margin: .25em 0; }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 2em 0; }
.prose :not(pre) > code { font-family: var(--mono); font-size: .88em; background: var(--inline-code-bg); padding: .12em .38em; border-radius: 5px; }
.prose pre, .prose pre[class] { position: relative; font-family: var(--mono); font-size: 14px; line-height: 1.6; background: var(--code-bg); color: var(--code-text); padding: 16px 18px; border-radius: var(--radius); overflow-x: auto; margin: 1.4em 0; tab-size: 4; }
.prose pre code { font: inherit; background: none; padding: 0; color: inherit; }
.copy-code { position: absolute; top: 8px; right: 8px; font: 12px var(--font); padding: 4px 9px; border-radius: 6px; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.08); color: #e2e8f0; cursor: pointer; opacity: 0; transition: opacity .15s; }
.prose pre:hover .copy-code, .copy-code:focus { opacity: 1; }
.table-wrap { overflow-x: auto; margin: 1.4em 0; }
.prose table { border-collapse: collapse; width: 100%; font-size: .95rem; }
.prose th, .prose td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; }
.prose th { background: var(--bg-soft); }
.prose iframe { max-width: 100%; }

.faq { margin: 40px 0 0; }
.faq details { border: 1px solid var(--border); border-radius: var(--radius); padding: 0 16px; margin-bottom: 8px; }
.faq summary { cursor: pointer; list-style: none; padding: 12px 0; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary h3 { display: inline; font-size: 1.05rem; margin: 0; }
.faq summary::before { content: "+"; display: inline-block; width: 1.2em; color: var(--accent); font-weight: 700; }
.faq details[open] summary::before { content: "–"; }
.faq-a { padding: 0 0 14px 1.2em; color: var(--text-soft); }

.post-foot { margin-top: 40px; display: flex; flex-direction: column; gap: 22px; }
.terms { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; }
.share { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; padding: 14px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.share a, .share button { font-size: .9rem; }
.share button { background: none; border: 0; color: var(--accent); cursor: pointer; font: inherit; font-size: .9rem; padding: 0; }
.author-box { display: flex; gap: 16px; padding: 18px; background: var(--bg-soft); border-radius: var(--radius); }
.author-box img, .avatar-lg { border-radius: 50%; flex-shrink: 0; object-fit: cover; }
.author-name { margin: 0 0 4px; font-weight: 700; }
.author-bio { color: var(--text-soft); font-size: .95rem; }
.author-bio p { margin: 0 0 .5em; }
.author-head { display: flex; gap: 22px; align-items: flex-start; margin-bottom: 20px; }
.author-head h1 { margin: 0; }
.social { display: flex; gap: 12px; flex-wrap: wrap; }
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.post-nav a { display: block; padding: 14px; border: 1px solid var(--border); border-radius: var(--radius); text-decoration: none; color: var(--text); font-weight: 600; font-size: .95rem; }
.post-nav small { display: block; color: var(--muted); font-weight: 400; }
.post-nav .next { text-align: right; }
@media (max-width: 600px) { .post-nav { grid-template-columns: 1fr; } .post-nav .next { text-align: left; } }
.related { margin-top: 24px; }

/* Yorumlar */
.comments { margin-top: 40px; }
.comment-list { list-style: none; padding: 0; margin: 0; }
.comment-list.children { margin-left: 22px; border-left: 2px solid var(--border); padding-left: 14px; }
.comment { padding: 12px 0; }
.comment.by-author > .comment-body { background: var(--accent-soft); padding: 2px 12px; border-radius: 8px; }
.comment-body p { margin: .4em 0; }
.badge { font-size: .72rem; background: var(--accent); color: var(--accent-text); padding: 1px 7px; border-radius: 999px; }
.reply-btn, .cancel-reply { background: none; border: 0; color: var(--accent); cursor: pointer; padding: 0; font-size: .85rem; }
.comment-form { margin-top: 24px; display: grid; gap: 12px; padding: 20px; border: 1px solid var(--border); border-radius: var(--radius); }
.comment-form h3 { margin: 0; }
.comment-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .comment-form .row { grid-template-columns: 1fr; } }
.comment-form label { display: grid; gap: 4px; font-size: .9rem; font-weight: 600; }
input[type=text], input[type=email], input[type=search], textarea { width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); font: inherit; font-size: 1rem; }
button[type=submit] { justify-self: start; background: var(--accent); color: var(--accent-text); border: 0; border-radius: 8px; padding: 10px 18px; font: inherit; font-weight: 600; cursor: pointer; }
.hp { position: absolute; left: -9999px; }
.notice { padding: 10px 14px; border-radius: 8px; border: 1px solid; }
.notice-ok { color: var(--ok); }
.notice-err { color: var(--err); }
.search-big { display: flex; gap: 8px; margin: 14px 0; }
.search-big button { justify-self: auto; }

/* Alt bilgi */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-soft); padding: 32px 0; font-size: .92rem; }
.footer-inner { display: grid; gap: 10px; }
.footer-brand { margin: 0; }
.footer-inner p { margin: 0; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.footer-nav a { color: var(--text-soft); text-decoration: none; }
.footer-nav a:hover { color: var(--accent); }

/* highlight.js (koyu) */
.hljs-comment, .hljs-quote { color: #7d8799; font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-built_in, .hljs-name { color: #c792ea; }
.hljs-string, .hljs-attr, .hljs-addition, .hljs-template-tag { color: #c3e88d; }
.hljs-number, .hljs-literal, .hljs-type { color: #f78c6c; }
.hljs-variable, .hljs-template-variable, .hljs-params { color: #ffcb6b; }
.hljs-title, .hljs-section, .hljs-function .hljs-title { color: #82aaff; }
.hljs-meta, .hljs-symbol, .hljs-bullet { color: #89ddff; }
.hljs-deletion { color: #ff5370; }

@media print {
    .site-header, .site-footer, .sidebar, .share, .comments, .related, .post-nav, .toc { display: none !important; }
    .prose pre { white-space: pre-wrap; }
}