/* ===== Temel değişkenler (koyu tema varsayılan) ===== */
:root {
  color-scheme: dark;
  --bg: #0b0a10;
  --bg-2: #14121d;
  --bg-3: #1c1928;
  --fg: #fafafa;
  --fg-2: #b9b4c7;
  --line: #2a2640;
  --neon: #7c3aed;
  --neon-2: #a78bfa;
  --cyan: #22d3ee;
  --glow: 0 0 0 1px rgba(124, 58, 237, .55), 0 0 22px rgba(124, 58, 237, .35);
  --serif: "Playfair Display", Georgia, serif;
  --sans: "Source Sans 3", "Segoe UI", sans-serif;
  --r: 14px;
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--fg);
  background:
    radial-gradient(60rem 30rem at 80% -10%, rgba(124, 58, 237, .18), transparent 60%),
    radial-gradient(40rem 25rem at -10% 100%, rgba(34, 211, 238, .10), transparent 60%),
    var(--bg);
  min-height: 100vh;
}
h1, h2, h3 { font-family: var(--serif); line-height: 1.2; margin: 0 0 .6em; letter-spacing: .01em; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; }
h2 { font-size: 1.6rem; font-weight: 600; margin-top: 1.4em; }
h3 { font-size: 1.2rem; font-weight: 600; margin-top: 1.2em; }
p { margin: 0 0 1em; }
a { color: var(--neon-2); }
a:hover { color: var(--cyan); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
table { border-collapse: collapse; width: 100%; margin: 0 0 1.2em; }
th, td { padding: .5em .7em; border-bottom: 1px solid var(--line); text-align: left; }
th { color: var(--neon-2); }
ul, ol { padding-left: 1.4em; margin: 0 0 1em; }
.skip { position: absolute; left: 0; top: -3rem; padding: .6rem 1rem; background: var(--neon); color: #fff; z-index: 99; }
.skip:focus { top: 0; }

/* ===== Yapı nesneleri (structure) ===== */
.wrap { width: min(100% - 2rem, 68rem); margin-inline: auto; }
main.wrap { display: grid; gap: 1.5rem; padding-block: 1.5rem 3rem; }

.box { padding: clamp(1.2rem, 3vw, 2.2rem); border-radius: var(--r); background: var(--bg-2); border: 1px solid var(--line); }
.box > :last-child { margin-bottom: 0; }

.media { display: flex; gap: 1rem; align-items: flex-start; }
.media-fig { flex: none; width: 3.25rem; height: 3.25rem; display: grid; place-items: center; border-radius: 50%; background: var(--bg-3); border: 1px solid var(--line); }
.media-fig-sm { width: 2.4rem; height: 2.4rem; }
.media-body { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; gap: .2rem; }
.media-body p { margin: 0; color: var(--fg-2); }
.media-link { text-decoration: none; color: inherit; transition: border-color .15s, transform .15s; }
.media-link:hover { border-color: var(--neon); transform: translateY(-2px); color: inherit; }
.media-link .media-body > span { color: var(--fg-2); }
.media-link strong { font-family: var(--serif); font-size: 1.25rem; }

.btn { display: inline-block; padding: .7rem 1.4rem; border-radius: 999px; font-weight: 600; text-decoration: none; border: 1px solid transparent; cursor: pointer; font: inherit; font-weight: 600; line-height: 1.2; transition: box-shadow .15s, background .15s; }
.btn-row .btn { margin: 0 .5rem .5rem 0; }

.grid { display: grid; gap: 1.25rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
.grid-form { grid-template-columns: 1fr; }
@media (min-width: 52rem) { .grid-form { grid-template-columns: 3fr 2fr; } }

.list-bare { list-style: none; margin: 0; padding: 0; }
.mt { margin-top: 1.25rem; }

/* ===== Görünüm nesneleri (skin) ===== */
.box-glow { box-shadow: var(--glow); border-color: rgba(124, 58, 237, .6); }
.box-dim { background: var(--bg-3); }

.btn-neon { background: var(--neon); color: #fff; box-shadow: 0 0 18px rgba(124, 58, 237, .55); }
.btn-neon:hover { background: #6d28d9; color: #fff; box-shadow: 0 0 28px rgba(124, 58, 237, .8); }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }

/* ===== Bileşenler ===== */
.nav { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.5rem; padding: .9rem 1rem; width: min(100%, 72rem); margin-inline: auto; border-bottom: 1px solid var(--line); }
.nav-brand { display: inline-flex; align-items: center; gap: .5rem; font-family: var(--serif); font-weight: 800; font-size: 1.15rem; color: var(--fg); text-decoration: none; margin-right: auto; }
.nav-brand:hover { color: var(--neon-2); }
.nav-links { display: flex; flex-wrap: wrap; gap: .25rem; }
.nav-links a { display: block; padding: .45rem .8rem; border-radius: 999px; color: var(--fg-2); text-decoration: none; font-weight: 600; }
.nav-links a:hover { color: var(--fg); background: var(--bg-3); }
.nav-links a.is-on { color: var(--fg); box-shadow: inset 0 0 0 1px var(--neon); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); color: var(--fg); padding: .4rem .9rem; border-radius: 999px; font: inherit; }
@media (max-width: 46rem) {
  .nav-toggle { display: inline-block; }
  .nav-links { display: none; width: 100%; flex-direction: column; }
  .nav-links.is-open { display: flex; }
}

.hero { position: relative; overflow: hidden; }
.hero-home { padding-block: clamp(2rem, 6vw, 4rem); }
.hero-home h1 { max-width: 30ch; }
.eyebrow { text-transform: uppercase; letter-spacing: .18em; font-size: .8rem; color: var(--cyan); margin-bottom: .6em; }
.lead { font-size: 1.25rem; color: var(--fg-2); max-width: 50ch; }
.hero-art { position: absolute; right: -1rem; bottom: -1rem; width: 16rem; opacity: .5; pointer-events: none; }
@media (max-width: 46rem) { .hero-art { display: none; } }
.crumbs { font-size: .9rem; color: var(--fg-2); margin-bottom: .4em; }
.crumbs a { color: var(--fg-2); }

.prose h2:first-child { margin-top: 0; }
.prose li { margin-bottom: .3em; }
.prose strong { color: var(--neon-2); }

.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1rem; }
.cta-row span { flex: 1 1 12rem; color: var(--fg-2); }

.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-q { width: 100%; text-align: left; background: none; border: 0; color: var(--fg); font: inherit; font-weight: 600; padding: .9rem 2.2rem .9rem 0; cursor: pointer; position: relative; }
.faq-q::after { content: ""; position: absolute; right: .4rem; top: 50%; width: .6rem; height: .6rem; border-right: 2px solid var(--neon-2); border-bottom: 2px solid var(--neon-2); transform: translateY(-70%) rotate(45deg); transition: transform .2s; }
.faq-q[aria-expanded="true"]::after { transform: translateY(-30%) rotate(-135deg); }
.faq-q:hover { color: var(--neon-2); }
.faq-a { padding: 0 0 1rem; color: var(--fg-2); }

.form label { display: block; font-weight: 600; margin: .9rem 0 .3rem; }
.form input, .form textarea { width: 100%; padding: .65rem .8rem; border-radius: 8px; background: var(--bg); border: 1px solid var(--line); color: var(--fg); font: inherit; }
.form input:focus, .form textarea:focus { border-color: var(--neon); box-shadow: 0 0 0 3px rgba(124, 58, 237, .25); outline: none; }
.form .btn { margin-top: 1.2rem; }
.form-trap { position: absolute; left: -200vw; top: 0; height: 0; overflow: hidden; }
.note { padding: .8rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
.note-ok { background: rgba(34, 211, 238, .12); border: 1px solid var(--cyan); }
.note-err { background: rgba(244, 63, 94, .12); border: 1px solid #f43f5e; }
.channel-list { display: grid; gap: 1rem; }
.channel-list a { word-break: break-all; }

.foot { border-top: 1px solid var(--line); padding: 2.5rem 0 1.5rem; margin-top: auto; }
.foot-grid { display: grid; gap: 1.5rem; }
@media (min-width: 46rem) { .foot-grid { grid-template-columns: 2fr 1fr; } }
.foot-links { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; }
.foot-links a { color: var(--fg-2); text-decoration: none; }
.foot-links a:hover { color: var(--cyan); }
.foot-copy { margin-top: 1.5rem; color: var(--fg-2); font-size: .9rem; }

/* ===== Görsel nesneleri ===== */
img { max-width: 100%; height: auto; }
/* Kapak: H1 arkasında overlay'li görsel (ana sayfa) */
.hero-cover { min-height: 24rem; isolation: isolate; }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; z-index: -2; border-radius: var(--r); }
.hero-cover::before { content: ""; position: absolute; inset: 0; z-index: -1; border-radius: var(--r); background: linear-gradient(100deg, rgba(11, 10, 16, .94) 0%, rgba(11, 10, 16, .82) 45%, rgba(124, 58, 237, .35) 100%); }
.hero-fore { position: relative; }
.hero-cover .hero-art { z-index: 0; opacity: .35; }
/* İç sayfa: medya nesnesi olarak görsel + başlık */
.hero-media { align-items: center; gap: 1.5rem; }
.media-fig-wide { width: min(100%, 20rem); height: auto; aspect-ratio: 16 / 9; border-radius: 10px; overflow: hidden; padding: 0; box-shadow: var(--glow); }
.media-fig-wide img { display: block; width: 100%; height: 100%; object-fit: cover; }
.hero-media .media-body h1 { font-size: clamp(1.7rem, 4vw, 2.6rem); margin-bottom: 0; }
@media (max-width: 46rem) {
  .hero-media { flex-direction: column; align-items: stretch; }
  .media-fig-wide { width: 100%; }
}

/* ===== Blog nesneleri: .card / .pager / .entry / .shelf / .neighbors ===== */
.muted { color: var(--fg-2); font-weight: 400; font-size: .6em; }
.no-gap { margin: 0; }
.card-grid { grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); }
.card-grid-tight { gap: .9rem; }
.card { display: flex; flex-direction: column; gap: .6rem; min-width: 0; }
.card.box { padding: 1.1rem; }
.card-thumb { display: block; border-radius: 10px; overflow: hidden; border: 1px solid var(--line); background: var(--bg-3); }
.card-thumb img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.card-body { display: flex; flex-direction: column; gap: .25rem; }
.card-date { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--cyan); }
.card-title { font-size: 1.15rem; margin: 0; }
.card-title a { color: var(--fg); text-decoration: none; }
.card-title a:hover { color: var(--neon-2); }
.card-text { margin: 0; color: var(--fg-2); font-size: .95rem; }
.card-grid-tight .card { padding: .9rem; border-radius: 10px; background: var(--bg-2); border: 1px solid var(--line); }
.card-grid-tight .card-title { font-size: 1.02rem; }

.pager { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.pager-state { color: var(--fg-2); font-size: .95rem; }

.entry-head { margin-bottom: 1.4rem; }
.entry-head h1 { font-size: clamp(1.8rem, 4.2vw, 2.8rem); }
.entry-meta { color: var(--fg-2); font-size: .95rem; margin: 0; }
.entry-meta time { color: var(--neon-2); font-weight: 600; }
.entry-cover { margin: 0 0 1.6rem; border-radius: 10px; overflow: hidden; box-shadow: var(--glow); }
.entry-cover img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.entry .prose h2 { margin-top: 1.6em; }

.shelf-title { font-size: 1.3rem; margin-top: 0; }
.shelf-list { display: grid; gap: .5rem; }
.shelf-item { display: flex; justify-content: space-between; gap: 1rem; padding: .55rem 0; border-top: 1px solid var(--line); }
.shelf-item a { font-weight: 600; text-decoration: none; }
.shelf-item a:hover { text-decoration: underline; }
.shelf-item time { flex: none; color: var(--fg-2); font-size: .85rem; }
.shelf-more { margin: 1rem 0 0; }

.neighbors { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.neighbors span { display: flex; flex-direction: column; gap: .2rem; min-width: 0; }
.neighbors span:last-child { text-align: right; }
.neighbors small { color: var(--fg-2); text-transform: uppercase; letter-spacing: .08em; font-size: .72rem; }
.neighbors a { text-decoration: none; font-weight: 600; }
@media (max-width: 46rem) {
  .neighbors { grid-template-columns: 1fr; }
  .neighbors span:last-child { text-align: left; }
  .shelf-item { flex-direction: column; gap: .1rem; }
}