:root {
  --primary: #0b4f9c;
  --primary-dark: #083a73;
  --accent: #1d9bf0;
  --accent-soft: #e6f3ff;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #1a2433;
  --muted: #5b6776;
  --line: #dde4ec;
  --warn-bg: #fff4e5;
  --warn-line: #f0b253;
  --ok-bg: #e9f8ef;
  --ok-line: #5cc48a;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}
img { max-width: 100%; height: auto; }
a { color: var(--primary); }
a:hover { color: var(--primary-dark); }
h1, h2, h3, h4 { line-height: 1.25; color: #10213a; margin: 0 0 .5em; }
h1 { font-size: clamp(1.7rem, 2.5vw + 1rem, 2.5rem); font-weight: 800; letter-spacing: -.01em; }
h2 { font-size: 1.45rem; font-weight: 700; margin-top: 2em; padding-top: .2em; }
h3 { font-size: 1.15rem; font-weight: 700; margin-top: 1.5em; }
p { margin: 0 0 1em; }
ul, ol { padding-left: 1.4em; margin: 0 0 1em; }
li { margin-bottom: .35em; }
strong { font-weight: 700; }
small, .small { font-size: .88rem; color: var(--muted); }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -999px; top: 0; background: #000; color: #fff; padding: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* Header */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; }
.header-inner { display: grid; grid-template-columns: auto 1fr auto; align-items: center; column-gap: 16px; }
.brand { grid-column: 1; min-height: 60px; }
.tagline { grid-column: 2; justify-self: end; }
.nav-toggle { grid-column: 3; }
.main-nav { grid-column: 1 / -1; border-top: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-size: 1.15rem; font-weight: 500; }
.brand strong { color: var(--primary); font-weight: 800; }
.tagline { font-size: .78rem; color: var(--muted); text-decoration: none; border-left: 1px solid var(--line); padding-left: 12px; margin-left: -4px; }
.tagline strong { color: var(--primary); }
.tagline:hover { text-decoration: underline; }
.nav-toggle { display: none; border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 8px 14px; font: inherit; cursor: pointer; }
.main-nav ul { list-style: none; margin: 0; padding: 6px 0; display: flex; gap: 2px; flex-wrap: wrap; }
.main-nav a { display: block; padding: 7px 12px; border-radius: 8px; text-decoration: none; color: var(--text); font-weight: 600; font-size: .95rem; }
.main-nav a:hover, .main-nav a[aria-current="page"] { background: var(--accent-soft); color: var(--primary); }

/* Layout */
main { padding: 20px 0 48px; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 4px 0 16px; font-size: .9rem; color: var(--muted); }
.breadcrumb li + li::before { content: "›"; margin-right: 6px; color: #9aa6b4; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--primary); text-decoration: underline; }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 32px; align-items: start; }
.layout-single { grid-template-columns: minmax(0, 1fr); max-width: 860px; }
.article { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(20px, 3vw, 40px); }
.article-head .lead { font-size: 1.15rem; color: #2b3a4f; }
.article-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: .85rem; color: var(--muted); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 10px 0; margin: 14px 0 20px; }

.info-note { margin: -8px 0 18px; color: var(--muted); }
.quick-answer { background: var(--accent-soft); border-left: 4px solid var(--accent); border-radius: 8px; padding: 14px 18px; margin: 0 0 22px; }
.quick-answer .qa-label { display: inline-block; font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.quick-answer p:last-child { margin-bottom: 0; }

.toc { background: #fafbfd; border: 1px solid var(--line); border-radius: 8px; padding: 14px 18px; margin: 0 0 24px; font-size: .95rem; }
.toc strong { display: block; margin-bottom: 6px; }
.toc ol { margin: 0; padding-left: 1.2em; columns: 2; column-gap: 24px; }
.toc li { break-inside: avoid; margin-bottom: 4px; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }

.article-body h2 { scroll-margin-top: 130px; }

.figure { margin: 0 0 24px; }
.figure img { display: block; width: 100%; height: auto; border-radius: 10px; border: 1px solid var(--line); background: #f6f8fb; }
.figure figcaption { font-size: .85rem; color: var(--muted); margin-top: 6px; }

/* Callouts */
.note, .warn, .ok { border-radius: 8px; padding: 14px 18px; margin: 18px 0; border: 1px solid; }
.note { background: #f3f6fa; border-color: var(--line); }
.warn { background: var(--warn-bg); border-color: var(--warn-line); }
.ok { background: var(--ok-bg); border-color: var(--ok-line); }
.note p:last-child, .warn p:last-child, .ok p:last-child { margin-bottom: 0; }
.note strong:first-child, .warn strong:first-child, .ok strong:first-child { display: block; margin-bottom: 4px; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 0 0 1.2em; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; background: #fff; }
th, td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; }
th { background: #f1f5fa; font-weight: 700; }
tbody tr:nth-child(even) td { background: #fafcfe; }
caption { caption-side: bottom; font-size: .85rem; color: var(--muted); padding: 6px 0; text-align: left; }

/* Cards grid (home) */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; margin: 16px 0 24px; padding: 0; list-style: none; }
.cards li { margin: 0; }
.cards a { display: block; height: 100%; padding: 16px; border: 1px solid var(--line); border-radius: 10px; text-decoration: none; color: var(--text); background: #fff; transition: box-shadow .15s, border-color .15s; }
.cards a:hover { border-color: var(--accent); box-shadow: 0 4px 16px rgba(11,79,156,.08); }
.cards a strong { display: block; color: var(--primary); margin-bottom: 4px; font-size: 1.02rem; }
.cards a span { font-size: .9rem; color: var(--muted); }

.steps { counter-reset: s; list-style: none; padding: 0; }
.steps li { counter-increment: s; position: relative; padding-left: 44px; margin-bottom: 12px; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 30px; height: 30px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; font-size: .9rem; }

.price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 16px 0 24px; }
.price-grid > div { border: 1px solid var(--line); border-radius: 10px; padding: 16px; background: #fff; }
.price-grid .pname { font-weight: 700; color: var(--muted); font-size: .9rem; }
.price-grid .pval { font-size: 1.5rem; font-weight: 800; color: var(--primary); margin: 4px 0; }
.price-grid .ptab { font-size: .85rem; color: var(--muted); }

/* FAQ */
.faq { margin-top: 2.5em; }
.faq details { border: 1px solid var(--line); border-radius: 8px; margin-bottom: 8px; background: #fff; }
.faq summary { cursor: pointer; padding: 12px 16px; list-style: none; display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--primary); font-weight: 700; flex-shrink: 0; }
.faq details[open] summary::after { content: "–"; }
.faq summary h3 { margin: 0; font-size: 1.02rem; font-weight: 600; }
.faq-a { padding: 0 16px 14px; color: #2b3a4f; }
.faq-a p:last-child { margin-bottom: 0; }

.disclaimer { margin-top: 2em; padding: 14px 18px; background: #fbfbfb; border: 1px dashed #c9d2dd; border-radius: 8px; font-size: .9rem; color: var(--muted); }
.related { margin-top: 2em; }
.related ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.related li { margin: 0; }
.related a { display: inline-block; padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; font-size: .92rem; background: #fff; }
.related a:hover { border-color: var(--accent); background: var(--accent-soft); }

/* Sidebar */
.sidebar { position: sticky; top: 130px; display: grid; gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.card h2 { font-size: 1.05rem; margin: 0 0 10px; }
.card h3 { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 12px 0 4px; }
.card ul { list-style: none; padding: 0; margin: 0; }
.card li { margin: 0; }
.card li a { display: block; padding: 5px 0; text-decoration: none; font-size: .93rem; }
.card li a[aria-current="page"] { font-weight: 700; }
.card.warn { background: var(--warn-bg); border-color: var(--warn-line); }
.card.warn p { font-size: .92rem; }
.facts dl { margin: 0; }
.facts dl > div { display: grid; grid-template-columns: 1fr 1.3fr; gap: 8px; padding: 7px 0; border-top: 1px solid var(--line); font-size: .92rem; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; font-weight: 600; }
.prices table { font-size: .92rem; }
.prices th, .prices td { padding: 6px 8px; }
.prices td { text-align: right; font-weight: 700; color: var(--primary); }

/* Footer */
.site-footer { background: #0f2340; color: #c9d6e6; padding: 36px 0 28px; font-size: .9rem; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; margin-bottom: 24px; }
.site-footer h3 { color: #fff; font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; margin: 0 0 8px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer a { color: #c9d6e6; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-note { border-top: 1px solid rgba(255,255,255,.12); padding-top: 18px; color: #9fb1c8; }
.footer-copy { color: #7f93ad; margin: 0; }

/* Hero on home */
.hero { background: linear-gradient(135deg, #0b4f9c, #1d9bf0); color: #fff; border-radius: var(--radius); padding: clamp(22px, 4vw, 40px); margin-bottom: 24px; }
.hero h1 { color: #fff; }
.hero p { color: #e6f3ff; font-size: 1.1rem; max-width: 760px; }
.hero .cta { display: inline-flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.hero .cta a { display: inline-block; padding: 10px 16px; border-radius: 8px; background: #fff; color: var(--primary); text-decoration: none; font-weight: 700; }
.hero .cta a.ghost { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.5); }

/* Çerez çubuğu ve düğmeler */
.cookie-bar { position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 60; background: #fff; border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 10px 30px rgba(10,25,50,.18); padding: 14px 18px; display: flex; gap: 16px; align-items: center; flex-wrap: wrap; max-width: 920px; margin: 0 auto; font-size: .92rem; }
.cookie-bar[hidden] { display: none; }
.cookie-bar p { margin: 0; flex: 1 1 320px; }
.cookie-actions { display: flex; gap: 8px; }
.btn { display: inline-block; padding: 9px 16px; border-radius: 8px; background: var(--primary); color: #fff; border: 1px solid var(--primary); font: inherit; font-weight: 700; cursor: pointer; text-decoration: none; }
.btn:hover { background: var(--primary-dark); }
.btn-ghost { background: #fff; color: var(--primary); }
.btn-ghost:hover { background: var(--accent-soft); }
.link-btn { background: none; border: 0; padding: 0; color: var(--primary); text-decoration: underline; font: inherit; cursor: pointer; }
.op-address { font-style: normal; background: #f3f6fa; border: 1px solid var(--line); border-radius: 8px; padding: 14px 18px; margin: 0 0 1.2em; line-height: 1.7; }
code { background: #f1f5fa; padding: 1px 5px; border-radius: 4px; font-size: .9em; }

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav-toggle { display: inline-block; }
  .tagline { display: none; }
  .main-nav { display: none; width: 100%; padding-bottom: 10px; }
  .article-body h2 { scroll-margin-top: 76px; }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; }
  .toc ol { columns: 1; }
  .facts dl > div { grid-template-columns: 1fr; gap: 2px; }
}
@media print {
  .site-header, .sidebar, .site-footer, .toc, .related { display: none; }
  .article { border: 0; padding: 0; }
}

/* Erişilebilirlik: gövde metnindeki bağlantılar yalnızca renkle değil, alt çizgiyle de ayırt edilsin */
.article-body p a, .article-body li a, .article-body td a, .faq-a a, .quick-answer a, .disclaimer a, .lead a, .info-note a, .footer-note a, .card p a, .cookie-bar a { text-decoration: underline; text-underline-offset: 2px; }
.article-body p a:hover, .article-body li a:hover { text-decoration-thickness: 2px; }