/* Ryzek — one stylesheet for every page.
   Mono for anything interface-shaped, a system sans for reading, Fraunces for
   headings. Colours are tuned to clear WCAG AA against the background. */

:root {
  --bg: #0a0d0b;
  --panel: #0e120f;
  --raised: #131913;
  --line: #243224;
  --line-soft: #182118;
  --text: #ebefe9;
  --dim: #a7b4a3;
  --faint: #80907c;
  --green: #7fe08c;
  --green-strong: #9aeea4;
  --green-dim: #4d9455;
  --green-wash: rgba(127, 224, 140, 0.08);
  --amber: #e8c48c;
  --orange: #f0a37a;
  --red: #ef928c;
  --blue: #93b9ee;

  --serif: "Fraunces", var(--script-serif, Georgia), "Times New Roman", serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --radius: 10px;
  --radius-sm: 6px;
  --wrap: 1140px;
  --gutter: clamp(18px, 4.5vw, 34px);
  --header-h: 64px;

  color-scheme: dark;
}

/* ---------- base ---------- */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.menu-open { overflow: hidden; }

main { flex: 1 0 auto; }

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

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

:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 3px; }
::selection { background: rgba(127, 224, 140, 0.3); color: #fff; }

h1, h2, h3, h4 { margin: 0 0 0.5em; line-height: 1.15; font-weight: 500; color: var(--text); }
h1 { font-family: var(--serif); font-size: clamp(2.15rem, 5.4vw, 3.7rem); letter-spacing: -0.018em; }
h2 { font-family: var(--serif); font-size: clamp(1.65rem, 3.5vw, 2.4rem); letter-spacing: -0.012em; }
h3 { font-family: var(--serif); font-size: clamp(1.2rem, 2.3vw, 1.5rem); }
h4 { font-family: var(--mono); font-size: 0.95rem; font-weight: 600; letter-spacing: 0.01em; }
h1 em, h2 em, .accent { font-style: italic; color: var(--green); }

p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; }

code, kbd, pre, samp { font-family: var(--mono); font-size: 0.9em; }
code {
  background: var(--raised);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: 0.08em 0.4em;
  color: var(--green);
  overflow-wrap: anywhere;
}
pre { margin: 0; overflow: auto; tab-size: 2; }
pre code { background: none; border: 0; padding: 0; color: inherit; overflow-wrap: normal; }

hr { border: 0; border-top: 1px solid var(--line-soft); margin: 2.5rem 0; }

.skip-link {
  position: absolute; inset-inline-start: -9999px; top: 0; z-index: 100;
  background: var(--green); color: #06110a; padding: 10px 14px;
  font: 600 14px var(--mono); border-radius: 0 0 6px 0; text-decoration: none;
}
.skip-link:focus { inset-inline-start: 0; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.wrap-narrow { max-width: 820px; }
.wrap-reading { max-width: 760px; }

/* ---------- header ---------- */

.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(10, 13, 11, 0.88);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
.site-header .wrap { display: flex; align-items: center; gap: 18px; height: var(--header-h); }

.brand {
  display: inline-flex; align-items: center; gap: 9px;
  color: var(--text); text-decoration: none;
  font: 700 17px/1 var(--mono); letter-spacing: 0.01em;
}
.brand:hover { color: var(--text); }
.brand-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); }

.nav { display: flex; align-items: center; gap: 2px; margin-inline-start: auto; }
.nav > a {
  font: 500 13.5px/1 var(--mono); color: var(--dim); text-decoration: none;
  padding: 11px 11px; border-radius: 6px; white-space: nowrap;
}
.nav > a:hover { color: var(--text); background: var(--raised); }
.nav > a[aria-current="page"] { color: var(--text); box-shadow: inset 0 -2px 0 var(--green); border-radius: 0; }
.header-cta { margin-inline-start: 12px; display: inline-flex; }

.menu-btn {
  display: none; margin-inline-start: auto; align-items: center; justify-content: center;
  width: 44px; height: 44px; padding: 0; border-radius: 8px;
  background: transparent; border: 1px solid var(--line); color: var(--text); cursor: pointer;
}
.menu-btn svg { width: 20px; height: 20px; }
.menu-btn .icon-close { display: none; }
.site-header[data-open] .menu-btn .icon-open { display: none; }
.site-header[data-open] .menu-btn .icon-close { display: block; }

@media (max-width: 940px) {
  .menu-btn { display: inline-flex; }
  .nav {
    display: none; position: fixed; left: 0; right: 0; top: var(--header-h);
    flex-direction: column; align-items: stretch; gap: 0; margin: 0;
    padding: 6px var(--gutter) 22px; background: var(--bg);
    border-bottom: 1px solid var(--line);
    max-height: calc(100vh - var(--header-h)); max-height: calc(100dvh - var(--header-h)); overflow-y: auto;
  }
  .site-header[data-open] .nav { display: flex; }
  .nav > a { padding: 15px 4px; font-size: 15px; border-bottom: 1px solid var(--line-soft); border-radius: 0; }
  .nav > a:hover { background: transparent; }
  .nav > a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--green); padding-inline-start: 14px; }
  [dir="rtl"] .nav > a[aria-current="page"] { box-shadow: inset -3px 0 0 var(--green); }
  .header-cta { margin: 18px 0 0; }
  .header-cta .btn { width: 100%; }
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 12px 20px; border-radius: 8px; border: 1px solid transparent;
  font: 600 14px/1.1 var(--mono); text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, color 0.15s, transform 0.15s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: none; }
.btn-primary { background: var(--green); color: #06110a; }
.btn-primary:hover { background: var(--green-strong); color: #06110a; }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--dim); color: var(--text); }
.btn-danger { background: transparent; border-color: rgba(239, 146, 140, 0.45); color: var(--red); }
.btn-danger:hover { background: rgba(239, 146, 140, 0.08); color: var(--red); }
.btn-sm { min-height: 38px; padding: 8px 14px; font-size: 13px; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
@media (max-width: 480px) {
  .btn-row.stack-sm { flex-direction: column; align-items: stretch; }
  .btn-row.stack-sm .btn { width: 100%; }
}

/* ---------- layout blocks ---------- */

.hero { padding: clamp(56px, 10vw, 112px) 0 clamp(40px, 7vw, 76px); }
.page-head { padding: clamp(48px, 8vw, 88px) 0 clamp(28px, 5vw, 48px); border-bottom: 1px solid var(--line-soft); }
.section { padding: clamp(56px, 9vw, 100px) 0; border-top: 1px solid var(--line-soft); }
.section.flush { border-top: 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 18px;
  font: 500 12px/1.2 var(--mono); text-transform: uppercase; letter-spacing: 0.14em; color: var(--green);
}
.eyebrow::before { content: "//"; color: var(--green-dim); }

.lede { font-size: clamp(1.06rem, 1.9vw, 1.22rem); color: var(--dim); max-width: 62ch; }
.lede strong { color: var(--text); font-weight: 600; }

.section-head { max-width: 70ch; margin-bottom: clamp(28px, 4vw, 46px); }
.section-head > p { color: var(--dim); margin: 0; }

.muted { color: var(--dim); }
.faint { color: var(--faint); }
.small { font-size: 0.9rem; }
.mono { font-family: var(--mono); }
.center { text-align: center; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 12px; } .mt-2 { margin-top: 24px; } .mt-3 { margin-top: 40px; }
.mb-0 { margin-bottom: 0; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 330px), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 225px), 1fr)); }
.split { display: grid; gap: clamp(28px, 5vw, 64px); grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); align-items: start; }

.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(18px, 2.6vw, 26px);
}
.card > h3 { margin-bottom: 0.4em; }
.card > p { color: var(--dim); font-size: 0.96rem; }
.card > p:last-child { margin-bottom: 0; }
a.card { display: block; color: inherit; text-decoration: none; transition: border-color 0.15s, transform 0.15s; }
a.card:hover { border-color: var(--green-dim); color: inherit; transform: translateY(-2px); }

.kicker { font: 500 11.5px/1.3 var(--mono); color: var(--faint); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 10px; }

.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden;
}
.stat { background: var(--bg); padding: 22px 24px; }
.stat-num { font: 500 clamp(2rem, 4.2vw, 2.7rem)/1 var(--serif); color: var(--green); }
.stat-label { color: var(--dim); font-size: 0.92rem; margin-top: 10px; }

.callout { border: 1px solid var(--green-dim); background: var(--green-wash); border-radius: var(--radius); padding: 16px 20px; }
.callout > :last-child { margin-bottom: 0; }
.callout.warn { border-color: rgba(232, 196, 140, 0.45); background: rgba(232, 196, 140, 0.07); }
.callout.error { border-color: rgba(239, 146, 140, 0.45); background: rgba(239, 146, 140, 0.07); }

.cta-band { border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); padding: clamp(28px, 5vw, 48px); text-align: center; }
.cta-band > p { color: var(--dim); max-width: 56ch; margin-left: auto; margin-right: auto; }
.cta-band .btn-row { justify-content: center; }

/* ---------- panels, terminal ---------- */

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.panel-head {
  display: flex; align-items: center; gap: 10px; min-height: 40px; padding: 8px 14px;
  border-bottom: 1px solid var(--line-soft); background: var(--raised);
  font: 500 12px/1.3 var(--mono); color: var(--faint);
}
.panel-dots { display: inline-flex; gap: 6px; }
.panel-dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--line); }
.panel-body { padding: 16px 18px; font: 13.5px/1.65 var(--mono); color: var(--dim); overflow: auto; }

/* ---------- badges, chips ---------- */

.sev {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 8px; border-radius: 5px; border: 1px solid;
  font: 600 11px/1.2 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; white-space: nowrap;
}
.sev-critical { color: var(--red); border-color: rgba(239, 146, 140, 0.42); background: rgba(239, 146, 140, 0.08); }
.sev-high { color: var(--orange); border-color: rgba(240, 163, 122, 0.42); background: rgba(240, 163, 122, 0.08); }
.sev-medium { color: var(--amber); border-color: rgba(232, 196, 140, 0.42); background: rgba(232, 196, 140, 0.07); }
.sev-low, .sev-info { color: var(--blue); border-color: rgba(147, 185, 238, 0.36); background: rgba(147, 185, 238, 0.07); }
.sev-clean { color: var(--green); border-color: var(--green-dim); background: var(--green-wash); }

.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--dim); background: transparent;
  font: 500 12px/1.1 var(--mono); white-space: nowrap;
}
.chip-owasp { color: var(--green); border-color: var(--green-dim); }
button.chip { cursor: pointer; }
button.chip[aria-pressed="true"] { background: var(--green); border-color: var(--green); color: #06110a; }

/* ---------- tables ---------- */

/* position: relative keeps absolutely positioned children (visually-hidden labels) inside the scroll area. */
.table-wrap { position: relative; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); -webkit-overflow-scrolling: touch; }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 0.93rem; min-width: 600px; }
.table-wrap th, .table-wrap td { text-align: start; padding: 12px 14px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.table-wrap th { font: 500 12px/1.3 var(--mono); color: var(--faint); text-transform: uppercase; letter-spacing: 0.06em; background: var(--raised); }
.table-wrap tr:last-child td { border-bottom: 0; }
.table-wrap td.num { font-family: var(--mono); white-space: nowrap; }

/* ---------- forms ---------- */

.field { display: flex; flex-direction: column; gap: 7px; margin-bottom: 18px; }
.field > label { font: 500 13px/1.3 var(--mono); color: var(--text); }
.field .hint { font-size: 0.86rem; color: var(--faint); }
.field .error-text { font-size: 0.86rem; color: var(--red); }
.field-row { display: grid; gap: 0 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }

input[type="text"], input[type="email"], input[type="search"], input[type="url"], select, textarea {
  width: 100%; font: 16px/1.5 var(--sans); color: var(--text);
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
textarea { min-height: 170px; resize: vertical; }
input::placeholder, textarea::placeholder { color: var(--faint); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--green-dim); box-shadow: 0 0 0 3px rgba(127, 224, 140, 0.18); }
[aria-invalid="true"] { border-color: var(--red) !important; }
select {
  appearance: none; -webkit-appearance: none; padding-right: 42px; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1.5 6 6.5l5-5' stroke='%23a7b4a3' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 16px center;
}
.form-status { margin-top: 14px; font-size: 0.96rem; min-height: 1.4em; }
.form-status[data-state="ok"] { color: var(--green); }
.form-status[data-state="error"] { color: var(--red); }
.hp-field { position: absolute; inset-inline-start: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }

/* ---------- long-form text ---------- */

.prose { max-width: 70ch; }
.prose p, .prose li { color: var(--dim); }
.prose strong { color: var(--text); font-weight: 600; }
.prose h2 { margin-top: 2.1em; }
.prose h3 { margin-top: 1.8em; }
.prose > :first-child { margin-top: 0; }
.prose ul, .prose ol { padding-inline-start: 1.3em; }
.prose li { margin: 0.4em 0; }
.prose blockquote {
  margin: 1.8em 0; padding-block: 0.2em; padding-inline: 1.2em 0; border-inline-start: 2px solid var(--green-dim);
  font-family: var(--serif); font-size: 1.25rem; font-style: italic; line-height: 1.45; color: var(--text);
}
.prose .source { font: 12.5px/1.5 var(--mono); color: var(--faint); }

/* ---------- footer ---------- */

.site-footer { border-top: 1px solid var(--line-soft); padding: 56px 0 34px; background: var(--bg); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr)); gap: 32px; }
.footer-brand p { color: var(--faint); font-size: 0.93rem; max-width: 36ch; margin: 14px 0 0; }
.footer-title { font: 500 11.5px/1 var(--mono); color: var(--faint); text-transform: uppercase; letter-spacing: 0.1em; margin: 0 0 14px; }
.footer-col a { display: block; width: fit-content; color: var(--dim); text-decoration: none; padding: 6px 0; font-size: 0.94rem; }
.footer-col a:hover { color: var(--green); }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line-soft);
  font-size: 0.86rem; color: var(--faint);
}
.footer-bottom a { color: var(--dim); text-decoration: none; }
.footer-bottom a:hover { color: var(--green); }
/* ---------- languages ---------- */

.lang-bar { background: var(--raised); border-bottom: 1px solid var(--line); }
.lang-bar .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; padding-block: 10px; }
.lang-bar p { margin: 0; flex: 1 1 280px; color: var(--dim); font-size: 0.93rem; }
.lang-bar .wrap > div:first-child { flex: 1 1 280px; display: grid; gap: 2px; }
.lang-bar .lang-bar-ask { color: var(--text); font-size: 1rem; }
.lang-bar .btn-row { gap: 8px; }
.lang-bar-close { margin-inline-start: auto; background: none; border: 0; border-radius: 6px; padding: 4px 9px; color: var(--faint); font: 400 22px/1 var(--mono); cursor: pointer; }
.lang-bar-close:hover { color: var(--text); background: var(--panel); }
.lang-bar-close:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }

.lang-menu { position: relative; }
.lang-menu > summary {
  list-style: none; display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  font: 500 13.5px/1 var(--mono); color: var(--dim); padding: 11px 10px; border-radius: 6px; white-space: nowrap;
}
.lang-menu > summary::-webkit-details-marker { display: none; }
.lang-menu > summary svg { width: 16px; height: 16px; flex: none; }
.lang-menu > summary:hover, .lang-menu[open] > summary { color: var(--text); background: var(--raised); }
.lang-menu > summary:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }
.lang-current { font-family: var(--sans); font-size: 14px; }
.lang-list {
  position: absolute; inset-inline-end: 0; top: calc(100% + 8px); z-index: 70;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px;
  width: min(480px, 88vw); max-height: min(70vh, 540px); overflow: auto; margin: 0; padding: 6px; list-style: none;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 18px 44px rgba(0, 0, 0, 0.5);
}
.lang-list a {
  display: block; padding: 9px 11px; border-radius: 6px; text-decoration: none;
  font: 400 14.5px/1.35 var(--sans); color: var(--dim);
}
.lang-list a:hover { color: var(--text); background: var(--raised); }
.lang-list a[aria-current="true"] { color: var(--green); background: var(--green-wash); }
@media (max-width: 940px) {
  .lang-menu > summary { width: 100%; padding: 15px 4px; font-size: 15px; border-bottom: 1px solid var(--line-soft); border-radius: 0; }
  .lang-list { position: static; width: 100%; max-height: none; margin: 6px 0 4px; box-shadow: none; }
}
.legal-note { margin-bottom: 1.6em; }

/* Headings in scripts Fraunces doesn't cover use the Noto face each language page loads. */
:lang(zh-Hans) { --script-serif: "Noto Serif SC"; }
:lang(zh-Hant) { --script-serif: "Noto Serif TC"; }
:lang(ja) { --script-serif: "Noto Serif JP"; }
:lang(ko) { --script-serif: "Noto Serif KR"; }
:lang(hi), :lang(mr) { --script-serif: "Noto Serif Devanagari"; }
:lang(bn) { --script-serif: "Noto Serif Bengali"; }
:lang(ta) { --script-serif: "Noto Serif Tamil"; }
:lang(te) { --script-serif: "Noto Serif Telugu"; }
:lang(th) { --script-serif: "Noto Serif Thai"; }
:lang(ar), :lang(fa), :lang(ur) { --script-serif: "Noto Naskh Arabic"; }
:lang(he) { --script-serif: "Noto Serif Hebrew"; }
:lang(ru), :lang(uk), :lang(el), :lang(vi) { --script-serif: "Noto Serif"; }
/* Tight tracking suits Latin display type; joined and syllabic scripts need their natural spacing. */
:is(:lang(ar), :lang(fa), :lang(ur), :lang(he), :lang(zh), :lang(ja), :lang(ko), :lang(hi), :lang(mr), :lang(bn), :lang(ta), :lang(te), :lang(th)) :is(h1, h2, h3, .eyebrow, .kicker) { letter-spacing: 0; }
:is(:lang(hi), :lang(mr), :lang(bn), :lang(ta), :lang(te), :lang(th)) :is(h1, h2, h3) { line-height: 1.32; }
/* Code, file paths and scanned text read left to right in every language. */
[dir="rtl"] :is(pre, code, kbd, samp, .code-view, .finding-evidence, .file-path, .finding-rule) { direction: ltr; unicode-bidi: isolate; }
[dir="rtl"] .code-view { text-align: left; }

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

/* ---------- motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .btn:hover, a.card:hover { transform: none; }
}