/* S.S.S — ورقة الأنماط. الألوان كلها رموز على :root، والوضع الداكن يعيد تعريفها. */
:root {
  --bg: #f3f5f6;          /* رمادي بارد بلمسة زرقاء خضراء */
  --surface: #ffffff;
  --sunk: #e8edef;
  --ink: #142126;
  --ink-2: #33444b;
  --muted: #5b6b72;
  --line: #d3dcdf;
  --accent: #1f5f7a;      /* أزرق بترولي */
  --accent-ink: #ffffff;
  --accent-soft: #dcebf1;
  --signal: #b8541c;      /* نارنجي محروق للإشارات الصغيرة فقط */
  --draft-bg: #fdf1e3;
  --draft-ink: #8a3f12;
  --focus: #2b7fa3;

  --f-ui: "IBM Plex Sans Arabic", "Geeza Pro", "Segoe UI", Tahoma, system-ui, sans-serif;
  --f-read: "Noto Naskh Arabic", "Geeza Pro", "Traditional Arabic", "Times New Roman", serif;

  --step--1: .875rem;
  --step-0: 1rem;
  --step-1: 1.1875rem;
  --step-2: 1.4375rem;
  --step-3: clamp(1.6rem, 1.2rem + 1.6vw, 2rem);
  --step-4: clamp(2rem, 1.3rem + 3vw, 3.1rem);

  --measure: 38rem;       /* نحو 65–75 حرفًا عربيًا بحجم نص القراءة */
  --gutter: 1rem;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1619;
    --surface: #152024;
    --sunk: #1b282d;
    --ink: #e4ecee;
    --ink-2: #c3d0d4;
    --muted: #93a4aa;
    --line: #2a3a40;
    --accent: #6cb8d6;
    --accent-ink: #0b1417;
    --accent-soft: #1c3440;
    --signal: #eb9a5f;
    --draft-bg: #3a2616;
    --draft-ink: #f2b684;
    --focus: #8fd0ea;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--f-ui);
  font-size: var(--step-0);
  line-height: 1.7;
  overflow-wrap: anywhere;
}
img, svg { max-width: 100%; }
a { color: var(--accent); text-underline-offset: .25em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; inset-inline-start: 1rem; top: -3rem; background: var(--ink); color: var(--bg); padding: .5rem 1rem; z-index: 10; border-radius: 6px; }
.skip:focus { top: .75rem; }
[lang="en"] { font-family: "IBM Plex Sans Arabic", system-ui, sans-serif; }

.wrap { width: 100%; max-width: 72rem; margin-inline: auto; padding-inline: var(--gutter); }
@media (min-width: 40rem) { :root { --gutter: 1.5rem; } }

/* ---------- الرأس والتذييل */
.site-head { border-bottom: 1px solid var(--line); background: var(--bg); }
.head-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4rem; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.2rem; color: var(--ink); text-decoration: none; letter-spacing: .04em; }
.mark { fill: var(--accent); width: 1.4rem; height: 1.4rem; flex: none; }
.mark rect:last-child { fill: var(--signal); }
.site-head nav { display: flex; gap: .25rem; }
.site-head nav a { color: var(--ink-2); text-decoration: none; padding: .4rem .7rem; border-radius: 999px; font-size: .95rem; }
.site-head nav a:hover { background: var(--sunk); }
.site-head nav a[aria-current="page"] { background: var(--ink); color: var(--bg); }

.site-foot { margin-top: 4rem; border-top: 1px solid var(--line); padding-block: 2rem 2.5rem; color: var(--muted); font-size: var(--step--1); }
.foot-row { display: grid; gap: .5rem; }
.foot-brand { display: flex; align-items: center; gap: .5rem; color: var(--ink); font-weight: 500; margin: 0; }
.foot-note { margin: 0; }
.foot-nav { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; margin-top: .5rem; }
.foot-nav a { color: var(--ink-2); }

/* ---------- عناصر مشتركة */
h1, h2, h3 { font-family: var(--f-ui); line-height: 1.35; margin: 0; text-wrap: balance; }
.kicker { color: var(--signal); font-weight: 500; font-size: var(--step--1); letter-spacing: .02em; margin: 0 0 .75rem; }
.lede { color: var(--ink-2); font-size: var(--step-1); line-height: 1.75; max-width: 40rem; }
.btn { display: inline-block; background: var(--ink); color: var(--bg); padding: .7rem 1.25rem; border-radius: 999px; text-decoration: none; font-weight: 500; border: 1px solid var(--ink); }
.btn:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-ghost { background: transparent; color: var(--ink); }
.hero-cta { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1.75rem 0 0; }
.sec-h { font-size: var(--step-3); }
.sec-sub { color: var(--muted); margin: .5rem 0 1.75rem; max-width: 40rem; }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.tag-draft { display: inline-block; font-size: .72rem; font-weight: 500; padding: .05rem .5rem; border-radius: 999px; background: var(--draft-bg); color: var(--draft-ink); margin-inline-start: .5rem; vertical-align: middle; line-height: 1.6; }

/* ---------- الرئيسية */
.hero { padding-block: 3rem 3.5rem; }
.hero-grid { display: grid; gap: 2.5rem; }
.hero h1 { font-size: var(--step-4); letter-spacing: -.01em; max-width: 16ch; }
.hero .lede { margin-top: 1.25rem; }
.src-note { color: var(--muted); font-size: var(--step--1); margin: 1rem 0 0; }
.gap-index { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem 1.25rem 1rem; align-self: start; }
.gi-h { font-weight: 700; margin: 0 0 .75rem; font-size: var(--step-0); }
.gap-index ol { list-style: none; margin: 0; padding: 0; }
.gap-index li { display: flex; gap: .75rem; align-items: baseline; padding: .42rem 0; border-top: 1px solid var(--line); font-size: .95rem; }
.gnum { font-variant-numeric: tabular-nums; color: var(--signal); font-weight: 500; font-size: .8rem; min-width: 1.5rem; }
.gi-link { display: inline-block; margin-top: .75rem; font-size: .95rem; }
@media (min-width: 60rem) {
  .hero { padding-block: 4.5rem 5rem; }
  .hero-grid { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 4rem; }
}

.band { background: var(--surface); border-block: 1px solid var(--line); padding-block: 3.5rem; }
.pos-grid { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; }
.pos { border-top: 3px solid var(--accent); padding-top: 1rem; }
.pos h3 { font-size: var(--step-1); margin-bottom: .4rem; }
.pos p { margin: 0; color: var(--ink-2); }
@media (min-width: 48rem) { .pos-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; } }
.hook { margin-top: 2.5rem; padding: 1.5rem; border-radius: var(--radius); background: var(--accent-soft); }
.hook-k { margin: 0; color: var(--accent); font-weight: 500; font-size: var(--step--1); }
.hook-t { font-size: var(--step-2); font-weight: 700; margin: .25rem 0 .5rem; line-height: 1.4; }
.hook-en { display: block; font-size: var(--step--1); font-weight: 400; color: var(--muted); }
.hook p:last-child { margin: 0; }

.latest { padding-top: 3.5rem; }

/* ---------- البطاقات */
.cards { display: grid; gap: 1rem; }
@media (min-width: 44rem) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 64rem) { .cards { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem; display: flex; flex-direction: column; position: relative; transition: border-color .15s; }
.card:hover { border-color: var(--accent); }
.card[hidden] { display: none; }
.card-meta { margin: 0 0 .6rem; font-size: var(--step--1); }
.cat { color: var(--accent); font-weight: 500; }
.card-title { font-size: var(--step-1); line-height: 1.5; }
.card-title a { color: var(--ink); text-decoration: none; }
.card-title a::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius); }
.card-ex { color: var(--ink-2); margin: .5rem 0 1rem; font-size: .95rem; }
.card-foot { margin: auto 0 0; color: var(--muted); font-size: var(--step--1); }

/* ---------- المدونة */
.page-head { padding-block: 3rem 1.5rem; }
.page-head h1 { font-size: var(--step-4); }
.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: .5rem; }
.chip { font: inherit; font-size: .9rem; border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); padding: .35rem .9rem; border-radius: 999px; cursor: pointer; }
.chip:hover { border-color: var(--accent); }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.filter-count { color: var(--muted); font-size: var(--step--1); min-height: 1.5em; margin: 0 0 1rem; }

/* ---------- المقال */
.post-head { padding-block: 2.5rem 1.5rem; }
.post-head h1 { font-size: var(--step-4); max-width: 22ch; margin-top: .5rem; }
.post-cat { margin: 0; font-size: var(--step--1); }
.post-cat a { color: var(--accent); font-weight: 500; text-decoration: none; }
.post-meta { display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; color: var(--muted); font-size: var(--step--1); margin: 1rem 0 0; padding-top: 1rem; border-top: 1px solid var(--line); max-width: 40rem; }
.post-grid { display: grid; gap: 1.5rem; }
@media (min-width: 68rem) {
  .post-grid.has-toc { grid-template-columns: minmax(0, var(--measure)) 15rem; gap: 4rem; justify-content: start; }
  .post-aside { order: 2; }
  .post-grid.has-toc .prose { order: 1; }
  .post-aside .toc { position: sticky; top: 1.5rem; }
}
.toc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.25rem; font-size: .92rem; }
.toc-h { font-weight: 700; margin: 0 0 .5rem; }
.toc ol { margin: 0; padding-inline-start: 1.2rem; }
.toc li { margin: .3rem 0; }
.toc a { color: var(--ink-2); text-decoration: none; }
.toc a:hover { color: var(--accent); text-decoration: underline; }

.prose { max-width: var(--measure); font-family: var(--f-read); font-size: 1.125rem; line-height: 1.95; }
@media (min-width: 40rem) { .prose { font-size: 1.1875rem; } }
.prose > * { margin-block: 0; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { font-size: var(--step-2); margin-top: 2.2em; scroll-margin-top: 1rem; }
.prose h3 { font-size: var(--step-1); margin-top: 1.8em; scroll-margin-top: 1rem; }
.prose h2 + *, .prose h3 + * { margin-top: .6em; }
.prose ul, .prose ol { padding-inline-start: 1.4rem; }
.prose li + li { margin-top: .45em; }
.prose li::marker { color: var(--accent); }
.prose strong { font-weight: 600; }
.prose [lang="en"] { font-size: .92em; }
.cite { font-family: var(--f-ui); font-size: .68em; line-height: 0; margin-inline-start: .1em; }
.cite a { text-decoration: none; padding: 0 .15em; border-radius: 3px; background: var(--accent-soft); }

.prose > .pull, .pull { margin-inline: 0; margin-block: 1.6em; padding-block: .25rem; padding-inline: 1.25rem 0; border-inline-start: 4px solid var(--signal); }
.pull blockquote { margin: 0; }
.pull p { font-family: var(--f-ui); font-size: 1.3rem; font-weight: 500; line-height: 1.6; color: var(--ink); }
.pull figcaption { font-family: var(--f-ui); font-size: var(--step--1); color: var(--muted); margin-top: .4rem; }

.sources { margin-top: 3rem; padding-top: 1.5rem; border-top: 2px solid var(--ink); font-family: var(--f-ui); font-size: .92rem; line-height: 1.7; }
.sources h2 { font-size: var(--step-1); margin-top: 0; }
.sources ol { padding-inline-start: 1.4rem; }
.sources li { margin-top: .6rem; scroll-margin-top: 1rem; }
.sources li:target { background: var(--accent-soft); border-radius: 4px; }
.s-org { font-weight: 500; }
.s-dom { color: var(--muted); font-size: .85em; }
.src-foot { color: var(--muted); font-size: var(--step--1); }

.related { margin-top: 3.5rem; }
.related .sec-h { margin-bottom: 1.25rem; font-size: var(--step-2); }

/* ---------- عن */
.about { padding-bottom: 1rem; }

/* ---------- النشرة */
.newsletter { margin-top: 3.5rem; display: grid; gap: 1.25rem; padding: 1.75rem 1.5rem; border-radius: var(--radius); background: var(--ink); color: var(--bg); }
.newsletter h2 { font-size: var(--step-2); margin-top: .35rem; }
.nl-text p { margin: .4rem 0 0; opacity: .85; }
.nl-badge { display: inline-block; margin: 0 !important; opacity: 1 !important; font-size: var(--step--1); font-weight: 500; padding: .1rem .7rem; border-radius: 999px; background: var(--signal); color: #fff; }
.nl-form { display: flex; flex-wrap: wrap; gap: .5rem; align-content: center; }
.nl-form input { flex: 1 1 14rem; min-width: 0; font: inherit; padding: .7rem 1rem; border-radius: 999px; border: 1px solid transparent; background: var(--bg); color: var(--ink); }
.nl-form input::placeholder { color: var(--muted); }
.nl-form button { font: inherit; font-weight: 500; padding: .7rem 1.4rem; border-radius: 999px; border: 0; background: var(--accent); color: var(--accent-ink); cursor: pointer; }
.nl-form button:hover { filter: brightness(1.1); }
.nl-note { flex-basis: 100%; margin: .25rem 0 0; font-size: var(--step--1); opacity: .9; }
@media (min-width: 52rem) { .newsletter { grid-template-columns: 1fr 1fr; align-items: center; padding: 2.25rem 2.5rem; gap: 2.5rem; } }
@media (prefers-color-scheme: dark) {
  .newsletter { background: var(--sunk); color: var(--ink); border: 1px solid var(--line); }
  .nl-form input { background: var(--bg); border-color: var(--line); }
}

/* ---------- 404 */
.nf { padding-block: 5rem 3rem; }
.nf-code { font-size: 4rem; font-weight: 700; color: var(--signal); margin: 0; line-height: 1; }
.nf h1 { margin-top: .75rem; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }