/* sexuritycode.ru — single stylesheet, no external requests */
:root {
  --bg: #f6f6f2;
  --surface: #ffffff;
  --text: #15181b;
  --muted: #5a6168;
  --line: #e2e2db;
  --accent: #0a7a58;
  --accent-ink: #ffffff;
  --accent-soft: #e3f1ea;
  --del: #b42318;
  --del-bg: #fdecea;
  --add: #0a7a58;
  --add-bg: #e3f1ea;
  --code-bg: #eeeee8;
  --radius: 10px;
  --wrap: 1120px;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1012;
    --surface: #14181b;
    --text: #e6e8e9;
    --muted: #9aa2a9;
    --line: #242a2e;
    --accent: #3fcf8e;
    --accent-ink: #06130d;
    --accent-soft: #10251c;
    --del: #ff8a80;
    --del-bg: #2a1614;
    --add: #3fcf8e;
    --add-bg: #10251c;
    --code-bg: #1a1f22;
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--sans);
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

img, svg { display: block; max-width: 100%; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.5rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 650; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; background: var(--surface); padding: 8px 12px; z-index: 10; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 68px; flex-wrap: wrap; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font: 600 1.05rem/1 var(--mono); letter-spacing: -0.02em; }
.logo-mark { width: 28px; height: 28px; flex: none; }
.logo b { color: var(--accent); font-weight: 600; }
.nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.nav a { color: var(--muted); text-decoration: none; padding: 6px 10px; border-radius: 6px; font-size: .95rem; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); background: var(--code-bg); }
.nav a.nav-cta { color: var(--accent-ink); background: var(--accent); margin-left: 6px; }
.nav a.nav-cta:hover { filter: brightness(1.08); }

/* Buttons */
.btn { display: inline-block; padding: 12px 20px; border-radius: 8px; font-weight: 600; text-decoration: none; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); }
.btn:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--muted); filter: none; }

.eyebrow { font: 500 .8rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 14px; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 40em; }

/* Hero */
.hero { padding: 72px 0 64px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.hero h1 { max-width: 13em; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

.finding { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; font: .86rem/1.55 var(--mono); box-shadow: 0 1px 0 var(--line), 0 18px 40px -24px rgba(0,0,0,.25); }
.finding-head { display: flex; justify-content: space-between; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); color: var(--muted); }
.sev { color: #9a5b00; background: #fff3dc; padding: 1px 8px; border-radius: 99px; font-size: .78rem; white-space: nowrap; }
@media (prefers-color-scheme: dark) { .sev { color: #ffc46b; background: #2b2110; } }
.finding-title { padding: 14px 16px 6px; font-family: var(--sans); font-weight: 650; font-size: 1rem; }
.finding-file { padding: 0 16px 10px; color: var(--muted); }
.diff { margin: 0; padding: 10px 0; background: var(--code-bg); overflow-x: auto; }
.diff span { display: block; padding: 0 16px; white-space: pre; }
.diff .d { color: var(--del); background: var(--del-bg); }
.diff .a { color: var(--add); background: var(--add-bg); }
.finding-foot { padding: 12px 16px; color: var(--muted); border-top: 1px solid var(--line); }

/* Sections */
.section { padding: 72px 0; border-top: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 36px; flex-wrap: wrap; }
.section-head p { color: var(--muted); max-width: 34em; margin: 0; }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card p { color: var(--muted); margin: 0; }
.card .tag { font: 500 .75rem/1 var(--mono); color: var(--accent); display: block; margin-bottom: 14px; }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: step; position: relative; padding-top: 44px; }
.steps li::before { content: "0" counter(step); position: absolute; top: 0; left: 0; font: 600 .85rem/1 var(--mono); color: var(--accent); border: 1px solid var(--line); border-radius: 6px; padding: 7px 8px; background: var(--surface); }
.steps p { color: var(--muted); margin: 0; }

.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { padding: 12px 0 12px 30px; border-bottom: 1px solid var(--line); position: relative; }
.checklist li:last-child { border-bottom: 0; }
.checklist li::before { content: ""; position: absolute; left: 4px; top: 20px; width: 12px; height: 7px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }

/* Post list */
.posts { list-style: none; padding: 0; margin: 0; }
.post-item { display: grid; grid-template-columns: 140px 1fr; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.post-item:first-child { padding-top: 0; }
.post-item time { font: .85rem/1.9 var(--mono); color: var(--muted); }
.post-item h3 { margin-bottom: 6px; font-size: 1.25rem; }
.post-item h3 a { color: var(--text); text-decoration: none; }
.post-item h3 a:hover { color: var(--accent); }
.post-item p { color: var(--muted); margin: 0; }

.cta-band { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 40px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta-band h2 { margin: 0 0 6px; }
.cta-band p { margin: 0; color: var(--muted); }

/* Page header */
.page-head { padding: 64px 0 40px; }
.page-head h1 { max-width: 16em; }

/* Service detail */
.service { display: grid; grid-template-columns: 280px 1fr; gap: 40px; padding: 40px 0; border-top: 1px solid var(--line); }
.service h2 { font-size: 1.5rem; }
.service .meta { font: .85rem/1.7 var(--mono); color: var(--muted); }
.service ul { margin: 0 0 1em; padding-left: 1.2em; }
.service li { margin-bottom: 6px; }

.stack { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; }
.stack li { font: .85rem/1 var(--mono); border: 1px solid var(--line); background: var(--surface); padding: 8px 10px; border-radius: 6px; }

details { border-bottom: 1px solid var(--line); padding: 16px 0; }
details summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; font-family: var(--mono); color: var(--muted); }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); margin: 12px 0 0; max-width: 46em; }

/* Article */
.article { max-width: 720px; margin: 0 auto; padding: 56px 20px 72px; }
.article-meta { font: .85rem/1.6 var(--mono); color: var(--muted); margin-bottom: 18px; }
.article-meta a { color: var(--muted); }
.article h1 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); margin-bottom: 20px; }
.article .lead { margin-bottom: 36px; }
.prose h2 { font-size: 1.5rem; margin-top: 2em; }
.prose h3 { margin-top: 1.6em; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1em; }
.prose li { margin-bottom: 6px; }
.prose blockquote { margin: 1.5em 0; padding: 4px 0 4px 18px; border-left: 3px solid var(--accent); color: var(--muted); }
.prose table { width: 100%; border-collapse: collapse; margin: 1.5em 0; font-size: .95rem; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { font-weight: 600; }
code { font: .88em/1.5 var(--mono); background: var(--code-bg); padding: .12em .35em; border-radius: 4px; }
pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 8px; padding: 16px 18px; overflow-x: auto; margin: 0 0 1.4em; }
pre code { background: none; padding: 0; font-size: .86rem; line-height: 1.6; }
.article-foot { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0; color: var(--muted); font-size: .92rem; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--text); }
.site-footer p { margin: 8px 0 0; }

/* 404 */
.notfound { padding: 120px 0; }
.notfound code { font-size: 1rem; }

@media (max-width: 900px) {
  .hero .wrap, .service { grid-template-columns: 1fr; gap: 32px; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 48px 0; }
  .section { padding: 56px 0; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .site-header .wrap { padding-top: 12px; padding-bottom: 12px; gap: 10px; }
  .nav { margin-left: -10px; }
  .nav a.nav-cta { margin-left: 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .post-item { grid-template-columns: 1fr; gap: 4px; }
  .cta-band { padding: 28px 22px; }
  .article { padding-top: 40px; }
}

.logo-mark rect { fill: var(--accent); }
.logo-mark path { stroke: var(--accent-ink); }
.contact-list li { padding-left: 0; }
.contact-list li::before { display: none; }
.contact-list strong { font-weight: 600; }
.pager { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin: 0; }
.pager a { text-decoration: none; }
.pager a:hover { text-decoration: underline; }
.finding { margin: 0; }
.stack { align-content: flex-start; align-self: start; }
@media (max-width: 600px) { .lead { font-size: 1.08rem; } }