/* turgutahmet.dev — one stylesheet, no build step. */

:root {
    --bg: #ffffff;
    --bg-soft: #f6f7f9;
    --text: #1d2127;
    --text-soft: #4a515c;
    --muted: #6b7380;
    --border: #e4e7ec;
    --accent: #1f5fd1;
    --accent-soft: #e9f0fc;
    --code-bg: #f6f8fa;
    --font-sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
    --measure: 44rem;
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #0f1115;
        --bg-soft: #161920;
        --text: #e6e8eb;
        --text-soft: #b9bec6;
        --muted: #8b929d;
        --border: #262a33;
        --accent: #7aa7ff;
        --accent-soft: #1a2436;
        --code-bg: #161b22;
        color-scheme: dark;
    }
}
:root[data-theme="dark"] {
    --bg: #0f1115;
    --bg-soft: #161920;
    --text: #e6e8eb;
    --text-soft: #b9bec6;
    --muted: #8b929d;
    --border: #262a33;
    --accent: #7aa7ff;
    --accent-soft: #1a2436;
    --code-bg: #161b22;
    color-scheme: dark;
}

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

html { -webkit-text-size-adjust: 100%; scroll-padding-top: 1.5rem; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 17px/1.65 var(--font-sans);
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main { flex: 1; width: 100%; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

h1, h2, h3, h4 { line-height: 1.25; color: var(--text); letter-spacing: -0.01em; }

.wrap { max-width: var(--measure); margin: 0 auto; padding: 0 1.25rem; }
.wrap-wide { max-width: 72rem; }

.muted { color: var(--muted); }
.small { font-size: 0.875rem; }

.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; background: var(--bg); padding: .5rem 1rem; z-index: 10; }

/* Header --------------------------------------------------------------- */
.site-header { border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 4rem; }
.brand { font-weight: 650; color: var(--text); font-size: 1.05rem; }
.brand:hover { text-decoration: none; }
.nav { display: flex; align-items: center; gap: 1.5rem; font-size: 0.95rem; }
.nav a { color: var(--text-soft); }
.nav a[aria-current="page"] { color: var(--text); font-weight: 600; }
.theme-toggle {
    display: inline-grid; place-items: center;
    width: 2rem; height: 2rem; padding: 0;
    border: 1px solid var(--border); border-radius: 6px;
    background: transparent; color: var(--text-soft); cursor: pointer;
}
.theme-toggle:hover { color: var(--text); background: var(--bg-soft); }
.icon-moon { display: none; }
:root[data-theme="dark"] .icon-sun { display: none; }
:root[data-theme="dark"] .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .icon-sun { display: none; }
    :root:not([data-theme="light"]) .icon-moon { display: block; }
}

/* Footer --------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--border); margin-top: 5rem; color: var(--muted); font-size: 0.875rem; }
.footer-inner { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; justify-content: space-between; padding-top: 1.5rem; padding-bottom: 2rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--text); }

/* Home ----------------------------------------------------------------- */
.hero { padding: 4rem 0 1rem; }
.hero h1 { font-size: 2.25rem; margin: 0 0 .35rem; font-weight: 700; }
.headline { margin: 0 0 1.75rem; color: var(--text-soft); font-size: 1.05rem; }
.lead { font-size: 1.1rem; color: var(--text); }
.hero p { color: var(--text-soft); }
.link-row { list-style: none; padding: 0; margin: 1.5rem 0 0; display: flex; flex-wrap: wrap; gap: .6rem; }
.link-row a {
    display: inline-block; padding: .35rem .85rem;
    border: 1px solid var(--border); border-radius: 6px;
    color: var(--text); font-size: .9rem; font-weight: 500;
}
.link-row a:hover { background: var(--bg-soft); text-decoration: none; }

.section { margin-top: 3.5rem; }
.section > h2, .section-head h2 {
    font-size: .8rem; text-transform: uppercase; letter-spacing: .08em;
    color: var(--muted); font-weight: 600; margin: 0 0 1.25rem;
}
.section-head { display: flex; justify-content: space-between; align-items: baseline; }
.more { font-size: .9rem; }

.timeline { list-style: none; padding: 0; margin: 0; }
.job { padding: 0 0 1.75rem; }
.job + .job { border-top: 1px solid var(--border); padding-top: 1.5rem; }
.job-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap; }
.job h3 { font-size: 1.1rem; margin: 0; }
.roles { list-style: none; padding: 0; margin: .35rem 0 .5rem; }
.roles li { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.role { color: var(--text-soft); font-weight: 500; }
.period { color: var(--muted); font-size: .9rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.highlights { margin: .5rem 0 0; padding-left: 1.1rem; color: var(--text-soft); font-size: .95rem; }
.highlights li { margin: .2rem 0; }
.highlights li::marker { color: var(--muted); }
.job p { margin: .3rem 0 0; }

.tags { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.tags li { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 6px; padding: .2rem .6rem; font-size: .875rem; color: var(--text-soft); }

/* Post list ------------------------------------------------------------ */
.page-head { padding: 3.5rem 0 1rem; }
.page-head h1 { font-size: 2rem; margin: 0 0 .5rem; }

.post-list { list-style: none; padding: 0; margin: 0; }
.post-list li + li { border-top: 1px solid var(--border); }
.post-link { display: block; padding: 1rem 0; color: var(--text); }
.post-link:hover { text-decoration: none; }
.post-link:hover .post-title { color: var(--accent); }
.post-title { display: block; font-weight: 600; font-size: 1.05rem; line-height: 1.4; }
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem; color: var(--muted); font-size: .875rem; margin-top: .25rem; }
.lang { font-size: .7rem; font-weight: 600; letter-spacing: .05em; border: 1px solid var(--border); border-radius: 4px; padding: 0 .35rem; margin-left: .25rem; }
.draft { font-size: .7rem; font-weight: 600; text-transform: uppercase; color: #b45309; border: 1px solid currentColor; border-radius: 4px; padding: 0 .35rem; }

/* Post ----------------------------------------------------------------- */
.post-layout { display: block; }
.post { max-width: var(--measure); width: 100%; margin: 0 auto; min-width: 0; }
.post-header { padding: 3rem 0 1.5rem; border-bottom: 1px solid var(--border); margin-bottom: 2rem; }
.back { font-size: .9rem; color: var(--muted); }
.post-header h1 { font-size: 2.1rem; margin: 1rem 0 .75rem; }
.lang-switch { margin-left: auto; font-weight: 500; }

@media (min-width: 1100px) {
    .post-layout.has-toc { display: grid; grid-template-columns: minmax(0, 1fr) 15rem; gap: 4rem; }
    .post-layout.has-toc .post { margin: 0; max-width: none; }
    .toc { position: sticky; top: 2rem; align-self: start; max-height: calc(100vh - 4rem); overflow-y: auto; padding-top: 3rem; }
    .toc summary { pointer-events: none; list-style: none; }
    .toc summary::-webkit-details-marker { display: none; }
}
@media (max-width: 1099px) {
    .post-layout.has-toc { display: flex; flex-direction: column; }
    .toc { order: -1; max-width: var(--measure); width: 100%; margin: 0 auto; }
    .toc details { border: 1px solid var(--border); border-radius: 8px; padding: .75rem 1rem; margin-top: 1.5rem; }
    .toc summary { cursor: pointer; }
}
.toc { font-size: .85rem; }
.toc summary { font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 600; margin-bottom: .75rem; }
.toc ol { list-style: none; padding: 0; margin: 0; }
.toc li { margin: .3rem 0; line-height: 1.4; }
.toc li.lvl-3 { padding-left: .9rem; }
.toc a { color: var(--muted); display: block; }
.toc a:hover, .toc a.active { color: var(--text); text-decoration: none; }
.toc a.active { font-weight: 500; }

/* Prose ---------------------------------------------------------------- */
.prose { color: var(--text); overflow-wrap: break-word; }
.prose > :first-child { margin-top: 0; }
.prose p, .prose ul, .prose ol, .prose blockquote, .prose pre, .prose .table-wrap { margin: 0 0 1.25rem; }
.prose h2 { font-size: 1.55rem; margin: 2.75rem 0 1rem; }
.prose h3 { font-size: 1.25rem; margin: 2.25rem 0 .75rem; }
.prose h4 { font-size: 1.05rem; margin: 1.75rem 0 .5rem; }
.prose h5, .prose h6 { font-size: 1rem; margin: 1.5rem 0 .5rem; color: var(--text-soft); }
.prose .anchor { margin-left: .4rem; color: var(--border); font-weight: 400; text-decoration: none; opacity: 0; }
.prose h2:hover .anchor, .prose h3:hover .anchor, .prose h4:hover .anchor { opacity: 1; color: var(--muted); }
.prose ul, .prose ol { padding-left: 1.4rem; }
.prose li { margin: .3rem 0; }
.prose li > p { margin: 0; }
.prose img { display: block; max-width: 100%; height: auto; margin: 1.75rem auto; border-radius: 8px; border: 1px solid var(--border); }
.prose blockquote { border-left: 3px solid var(--border); padding: .1rem 0 .1rem 1rem; color: var(--text-soft); }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 2.5rem 0; }
.prose a { text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent); text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: var(--accent); }

.prose code { font-family: var(--font-mono); font-size: .875em; background: var(--code-bg); border: 1px solid var(--border); border-radius: 4px; padding: .1em .35em; }
.prose pre { background: var(--code-bg); border: 1px solid var(--border); border-radius: 8px; overflow-x: auto; padding: 0; }
.prose pre code { display: block; padding: 1rem 1.15rem; border: 0; background: transparent !important; font-size: .85rem; line-height: 1.6; }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; }
.prose table { width: 100%; min-width: 34rem; border-collapse: collapse; font-size: .9rem; }
.prose th, .prose td { text-align: left; padding: .55rem .8rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.prose th { background: var(--bg-soft); font-weight: 600; }
.prose tr:last-child td { border-bottom: 0; }

/* Error pages ---------------------------------------------------------- */
.error-page { padding: 6rem 0 2rem; }
.error-code { font-size: 5rem; font-weight: 700; line-height: 1; letter-spacing: -0.04em; color: var(--border); margin: 0 0 1.25rem; font-variant-numeric: tabular-nums; }
.error-page h1 { font-size: 1.75rem; margin: 0 0 .5rem; }
.error-links { display: flex; gap: 1.25rem; margin-top: 1.75rem; }

/* Small screens --------------------------------------------------------- */
@media (max-width: 600px) {
    body { font-size: 16px; }
    .wrap { padding: 0 1rem; }
    .nav { gap: 1rem; }
    .hero { padding-top: 2.5rem; }
    .hero h1 { font-size: 1.85rem; }
    .post-header h1 { font-size: 1.65rem; }
    .lang-switch { margin-left: 0; width: 100%; }
}

@media print {
    .site-header, .site-footer, .toc, .theme-toggle { display: none; }
}