/* Amr Effendi platform documentation. One stylesheet for every page, both languages. */

:root {
  --bg: #f6f7f8;
  --surface: #ffffff;
  --surface-2: #eef2f3;
  --text: #14191c;
  --muted: #56606a;
  --border: #dfe3e6;
  --brand: #0b3d4a;
  --brand-deep: #071e26;
  --brand-ink: #ffffff;
  --accent: #f5c518;
  --accent-ink: #111111;
  --link: #0e6a80;
  --ok: #0f766e;
  --warn: #9a6b00;
  --warn-bg: #fff7dc;
  --bad: #b4233c;
  --info-bg: #e7f3f6;
  --code-bg: #eef1f3;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.06), 0 4px 16px rgb(0 0 0 / 0.04);
  --radius: 10px;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --arab: "IBM Plex Sans Arabic", "Noto Sans Arabic", "Segoe UI", Tahoma, sans-serif;
  --mono: ui-monospace, "Cascadia Code", Consolas, "Liberation Mono", monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1215;
    --surface: #131b1f;
    --surface-2: #1a252a;
    --text: #e6ecee;
    --muted: #9aa7ae;
    --border: #273439;
    --brand: #0f4c5c;
    --brand-deep: #071e26;
    --link: #6cc4d8;
    --ok: #3cc2b1;
    --warn: #f0c24a;
    --warn-bg: #2a2410;
    --bad: #ff7a90;
    --info-bg: #10262d;
    --code-bg: #1a2429;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.4);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--sans);
}

html[lang="ar"] body { font-family: var(--arab); line-height: 1.8; }

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

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.skip {
  position: absolute; inset-inline-start: 8px; top: -60px; z-index: 50;
  background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 6px;
  font-weight: 600; text-decoration: none;
}
.skip:focus { top: 8px; }

/* Header */
.site-header {
  background: var(--brand);
  color: var(--brand-ink);
  border-bottom: 3px solid var(--accent);
  position: sticky; top: 0; z-index: 20;
}
.site-header .bar {
  max-width: 1200px; margin: 0 auto; padding: 10px 16px;
  display: flex; align-items: center; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; font-weight: 700; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 8px; background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center; font-weight: 800; font-size: 15px; flex: none;
}
.brand small { display: block; font-weight: 400; opacity: 0.8; font-size: 12px; line-height: 1.2; }
.brand span { line-height: 1.2; }
.header-actions { margin-inline-start: auto; display: flex; gap: 8px; align-items: center; }
.lang-switch, .menu-btn {
  color: var(--brand-ink); border: 1px solid rgb(255 255 255 / 0.35); background: transparent;
  padding: 6px 12px; border-radius: 999px; text-decoration: none; font: inherit; font-size: 14px; cursor: pointer;
}
.lang-switch:hover, .menu-btn:hover { background: rgb(255 255 255 / 0.1); }
.menu-btn { display: none; }

/* Layout */
.layout {
  max-width: 1200px; margin: 0 auto; padding: 24px 16px 64px;
  display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 32px;
}
.sidenav { position: sticky; top: 76px; align-self: start; max-height: calc(100vh - 96px); overflow: auto; }
.sidenav ul { list-style: none; margin: 0; padding: 0; }
.sidenav li a {
  display: block; padding: 7px 12px; border-radius: 8px; color: var(--text); text-decoration: none; font-size: 15px;
  border-inline-start: 3px solid transparent;
}
.sidenav li a:hover { background: var(--surface-2); }
.sidenav li a[aria-current="page"] {
  background: var(--surface); border-inline-start-color: var(--accent); font-weight: 600; box-shadow: var(--shadow);
}
.sidenav .group { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 16px 12px 6px; }
html[lang="ar"] .sidenav .group { letter-spacing: 0; text-transform: none; }

main { min-width: 0; }
.content {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px clamp(18px, 4vw, 44px); box-shadow: var(--shadow);
}
.content > :first-child { margin-top: 0; }

h1, h2, h3 { line-height: 1.3; color: var(--text); }
h1 { font-size: clamp(28px, 4vw, 36px); margin: 0 0 8px; }
h2 { font-size: 23px; margin: 40px 0 12px; padding-top: 8px; border-top: 1px solid var(--border); }
h3 { font-size: 18px; margin: 28px 0 8px; }
.lead { font-size: 18px; color: var(--muted); margin-top: 0; }
p, ul, ol { margin: 0 0 14px; }
li { margin-bottom: 4px; }

code, kbd {
  font-family: var(--mono); font-size: 0.88em; background: var(--code-bg); padding: 1px 6px; border-radius: 5px;
  direction: ltr; unicode-bidi: isolate;
}
pre {
  background: var(--code-bg); padding: 14px 16px; border-radius: 8px; overflow-x: auto; direction: ltr; text-align: left;
  font-size: 14px; line-height: 1.5;
}
pre code { background: none; padding: 0; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 0 0 18px; border: 1px solid var(--border); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: start; padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--surface-2); font-weight: 600; }
tr:last-child td { border-bottom: none; }

/* Callouts */
.note, .warn, .gap {
  border-radius: 8px; padding: 12px 16px; margin: 0 0 18px; border-inline-start: 4px solid;
}
.note { background: var(--info-bg); border-color: var(--link); }
.warn { background: var(--warn-bg); border-color: var(--warn); }
.gap { background: var(--surface-2); border-color: var(--muted); }
.note > :last-child, .warn > :last-child, .gap > :last-child { margin-bottom: 0; }
.callout-title { font-weight: 700; display: block; margin-bottom: 2px; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; margin: 18px 0 24px; }
.card {
  display: block; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; color: var(--text); text-decoration: none; transition: border-color 0.15s, transform 0.15s;
}
a.card:hover { border-color: var(--accent); transform: translateY(-1px); }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.card .tag { display: inline-block; font-size: 12px; background: var(--surface-2); color: var(--muted); padding: 1px 8px; border-radius: 999px; margin-bottom: 8px; }

.hero {
  background: linear-gradient(120deg, var(--brand) 0%, var(--brand-deep) 100%); color: #fff;
  border-radius: var(--radius); padding: 32px clamp(18px, 4vw, 40px); margin-bottom: 24px;
}
.hero h1 { color: #fff; }
.hero p { color: rgb(255 255 255 / 0.85); font-size: 18px; max-width: 60ch; margin: 0; }
.hero .accent { color: var(--accent); }

/* Steps */
ol.steps { counter-reset: s; list-style: none; padding: 0; }
ol.steps > li { counter-increment: s; position: relative; padding-inline-start: 44px; margin-bottom: 14px; }
ol.steps > li::before {
  content: counter(s); position: absolute; inset-inline-start: 0; top: 0;
  width: 30px; height: 30px; border-radius: 50%; background: var(--brand); color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: 14px;
}

/* Diagrams */
figure.diagram { margin: 12px 0 24px; padding: 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); overflow-x: auto; }
figure.diagram svg { direction: ltr; display: block; min-width: 640px; width: 100%; height: auto; }
figure.diagram figcaption { font-size: 14px; color: var(--muted); margin-top: 8px; }
.dg-box { fill: var(--surface-2); stroke: var(--border); }
.dg-main { fill: var(--info-bg); stroke: var(--link); }
.dg-ok { fill: var(--surface-2); stroke: var(--ok); stroke-width: 2; }
.dg-bad { fill: var(--surface-2); stroke: var(--bad); stroke-width: 2; }
.dg-warn { fill: var(--warn-bg); stroke: var(--warn); }
.dg-text { fill: var(--text); font: 600 12.5px var(--mono); }
.dg-small { fill: var(--muted); font: 11px var(--sans); }
.dg-line { stroke: var(--muted); stroke-width: 1.5; fill: none; }
.dg-line-bad { stroke: var(--bad); stroke-width: 1.3; fill: none; stroke-dasharray: 4 3; }
.dg-arrow { fill: var(--muted); }
.dg-arrow-bad { fill: var(--bad); }

.pill { display: inline-block; font-family: var(--mono); font-size: 13px; padding: 1px 8px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border); direction: ltr; }
.pill.ok { border-color: var(--ok); color: var(--ok); }
.pill.bad { border-color: var(--bad); color: var(--bad); }

/* Footer */
.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 32px; flex-wrap: wrap; }
.pager a { border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; text-decoration: none; flex: 1 1 200px; }
.pager a.next { text-align: end; }
.pager small { display: block; color: var(--muted); }
.site-footer { max-width: 1200px; margin: 0 auto; padding: 0 16px 32px; color: var(--muted); font-size: 14px; }

/* Mobile */
@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; gap: 16px; padding-top: 16px; }
  .menu-btn { display: inline-block; }
  .sidenav { position: static; max-height: none; display: none; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 8px; }
  .sidenav.open { display: block; }
  .no-js .sidenav { display: block; }
  .content { padding: 22px 16px; }
  .brand small { display: none; }
}

@media print {
  .site-header, .sidenav, .pager { display: none; }
  .layout { display: block; }
  .content { border: none; box-shadow: none; }
}

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }