/* SecureNet blog — palet uygulamanın Theme.swift renkleriyle aynı (index.html ile ortak). */
:root {
  --primary: #3B5BFF; --primary-dark: #2F4BE0; --connected: #0A78D8;
  --bg: #FFFFFF; --bg-alt: #F4F6FA; --bg-elevated: #EDF0F5; --separator: #E1E5EC;
  --text: #0B0F16; --text-2: #5B6472; --text-3: #99A1AE;
  --dark-bg: #0A0C10; --dark-surface: #14181F; --dark-separator: #252C37; --dark-text: #F2F5F9; --dark-text-2: #8B95A3;
  --radius: 16px; --wrap: 1040px; --article: 720px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.wrap.article { max-width: var(--article); }

/* üst çubuk */
.topbar { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--separator); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--primary); letter-spacing: -0.3px; white-space: nowrap; }
.brand:hover { text-decoration: none; }
.brand img { width: 36px; height: 36px; border-radius: 8px; }
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a { color: var(--text-2); font-weight: 500; font-size: 0.95rem; }
.nav-links a[aria-current="page"] { color: var(--text); }
.nav-links a:hover { color: var(--primary); text-decoration: none; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 18px; border-radius: 10px; font-weight: 600; border: 1px solid var(--separator); color: var(--text); background: var(--bg); transition: transform .15s ease, box-shadow .15s ease, background .15s ease; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn.primary { background: var(--primary); color: #fff !important; border-color: var(--primary); box-shadow: 0 6px 16px -4px rgba(59,91,255,0.45); white-space: nowrap; }
.btn.primary:hover { background: var(--primary-dark); }
.language-select { padding: 8px 10px; border-radius: 10px; border: 1px solid var(--separator); background: var(--bg-alt); color: var(--text); font: inherit; font-size: 0.9rem; max-width: 160px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* hero */
.hero { background: var(--dark-bg); color: var(--dark-text); padding: 56px 0 44px; }
.hero .breadcrumb a { color: var(--dark-text-2); }
.hero .breadcrumb span { color: var(--dark-text); }
.eyebrow { display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: #7FA6FF; margin: 18px 0 10px; }
.hero h1 { margin: 0 0 14px; font-size: clamp(1.9rem, 4vw, 2.75rem); line-height: 1.15; letter-spacing: -0.8px; font-weight: 800; }
.hero .lead { margin: 0; font-size: 1.15rem; color: var(--dark-text-2); max-width: 46em; }
.byline { margin: 18px 0 0; font-size: 0.9rem; color: var(--dark-text-2); }
.meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chip { display: inline-block; padding: 5px 12px; border-radius: 999px; font-size: 0.8rem; font-weight: 600; background: var(--dark-surface); color: var(--dark-text-2); border: 1px solid var(--dark-separator); }
.chip.active { background: rgba(59,91,255,0.2); color: #B9C8FF; border-color: rgba(59,91,255,0.4); }

/* içerik */
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; font-size: 0.85rem; }
.breadcrumb li + li::before { content: "/"; color: var(--text-3); margin-right: 6px; }
.section { padding: 44px 0; }
.section + .section { padding-top: 0; }
article h2 { font-size: 1.5rem; margin: 40px 0 12px; letter-spacing: -0.4px; line-height: 1.25; }
article h3 { font-size: 1.15rem; margin: 26px 0 8px; }
article p, article li { font-size: 1.05rem; }
article ul, article ol { padding-left: 1.3em; }
article li { margin: 6px 0; }
.answer, .facts, .toc, .callout { border-radius: var(--radius); padding: 20px 22px; margin: 24px 0; }
.answer { background: var(--bg-alt); border: 1px solid var(--separator); }
.answer h2, .facts h2, .toc h2 { margin: 0 0 8px; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-2); }
.answer p { margin: 0; font-size: 1.08rem; }
.facts { background: var(--bg); border: 1px solid var(--separator); }
.facts ul { margin: 0; }
.toc { background: var(--bg-elevated); }
.toc ol { margin: 0; padding-left: 1.2em; columns: 2; column-gap: 24px; }
.toc li { break-inside: avoid; font-size: 0.95rem; }
.callout { background: rgba(59,91,255,0.06); border-left: 4px solid var(--primary); }
.callout p { margin: 0; font-weight: 500; }
.steps { list-style: none; padding: 0; counter-reset: step; }
.steps li { counter-increment: step; position: relative; padding-left: 48px; margin: 14px 0; }
.steps li::before { content: counter(step); position: absolute; left: 0; top: 2px; width: 32px; height: 32px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; }
.table-wrap { overflow-x: auto; margin: 20px 0; border: 1px solid var(--separator); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
caption { text-align: left; padding: 12px 16px; font-weight: 600; color: var(--text-2); font-size: 0.85rem; }
th, td { padding: 12px 16px; text-align: left; vertical-align: top; border-top: 1px solid var(--separator); }
thead th { background: var(--bg-alt); font-weight: 700; border-top: 0; }
tbody th { font-weight: 600; }
.faq details { border: 1px solid var(--separator); border-radius: 12px; padding: 0 18px; margin: 10px 0; background: var(--bg); }
.faq summary { cursor: pointer; padding: 14px 0; font-weight: 600; list-style: none; position: relative; padding-right: 28px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 12px; color: var(--primary); font-size: 1.3rem; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 16px; }
.cta { margin: 40px 0; padding: 28px; border-radius: var(--radius); background: var(--dark-bg); color: var(--dark-text); text-align: center; }
.cta h2 { margin: 0 0 8px; font-size: 1.4rem; }
.cta p { color: var(--dark-text-2); margin: 0 0 14px; }
.cta p:last-child { margin: 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.card { display: block; padding: 20px; border-radius: var(--radius); border: 1px solid var(--separator); background: var(--bg); color: var(--text); transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease; }
.card:hover { text-decoration: none; transform: translateY(-3px); box-shadow: 0 12px 24px -12px rgba(11,15,22,0.25); border-color: var(--primary); }
.card h2, .card h3 { margin: 0 0 8px; font-size: 1.1rem; line-height: 1.3; }
.card p { margin: 0; color: var(--text-2); font-size: 0.95rem; }
.cluster-head { margin: 0 0 18px; }
.cluster-head h2 { margin: 0 0 6px; font-size: 1.4rem; }
.cluster-head p { margin: 0; color: var(--text-2); }
.links { margin: 32px 0 0; display: flex; gap: 12px; flex-wrap: wrap; }

/* alt bilgi */
footer { background: var(--dark-bg); color: var(--dark-text-2); padding: 36px 0; margin-top: 40px; font-size: 0.9rem; }
.footer-row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a { color: var(--dark-text-2); }
.footer-links a:hover { color: var(--dark-text); }

[dir="rtl"] .steps li { padding-left: 0; padding-right: 48px; }
[dir="rtl"] .steps li::before { left: auto; right: 0; }
[dir="rtl"] .callout { border-left: 0; border-right: 4px solid var(--primary); }
[dir="rtl"] .faq summary { padding-right: 0; padding-left: 28px; }
[dir="rtl"] .faq summary::after { right: auto; left: 0; }
[dir="rtl"] caption, [dir="rtl"] th, [dir="rtl"] td { text-align: right; }

@media (max-width: 720px) {
  .nav { height: 58px; }
  .nav-links { gap: 10px; }
  .nav-links a:not(.btn) { display: none; }
  .language-select { max-width: 110px; }
  .hero { padding: 36px 0 30px; }
  .toc ol { columns: 1; }
  .answer, .facts, .toc, .callout { padding: 16px; }
  article p, article li { font-size: 1rem; }
}