:root {
  color-scheme: dark;
  --navy: #0a1228;
  --navy-2: #101a38;
  --indigo: #16234a;
  --gold: #d4a853;
  --gold-soft: #e9cf8e;
  --teal: #3fb8af;
  --coral: #e8665a;
  --ink: #f3efe6;
  --muted: #a9b3cc;
  --line: rgba(212, 168, 83, 0.22);
  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --arabic: "Amiri", "Diwan Thuluth", "Geeza Pro", serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--navy);
  background-image: radial-gradient(rgba(255,255,255,.05) 1px, transparent 1.2px);
  background-size: 24px 24px;
  color: var(--ink);
  font: 17px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--gold-soft); }
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 820px; }
section { padding: 88px 0; }
.band { background: linear-gradient(180deg, rgba(22,35,74,.55), rgba(16,26,56,.35)); border-block: 1px solid var(--line); }
.band > .wrap + .wrap { margin-top: 36px; }

/* Nav */
.top { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(10px); background: rgba(10,18,40,.82); border-bottom: 1px solid var(--line); }
.nav { display: flex; justify-content: space-between; align-items: center; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font: 600 20px var(--serif); color: var(--ink); text-decoration: none; }
.brand img { border-radius: 7px; }
nav { display: flex; gap: 22px; align-items: center; font-size: 15px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--ink); }
nav .pill { color: var(--navy); background: var(--gold); padding: 7px 16px; border-radius: 999px; font-weight: 600; }
nav .pill:hover { color: var(--navy); background: var(--gold-soft); }
@media (max-width: 760px) { nav a:not(.pill) { display: none; } }

/* Hero */
.hero { padding: 72px 0 96px; background: radial-gradient(circle at 75% 35%, var(--indigo), transparent 60%); }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.arabic { font: 700 clamp(56px, 8vw, 92px)/1 var(--arabic); color: var(--gold); margin: 0 0 4px; }
.arabic.small { font-size: 22px; vertical-align: -2px; margin-right: 6px; }
h1 { font: 700 clamp(64px, 10vw, 112px)/.95 var(--serif); margin: 0 0 18px; letter-spacing: -.02em; }
.lede { font: 500 clamp(20px, 2.4vw, 26px)/1.35 var(--sans); color: var(--gold-soft); margin: 0 0 14px; }
.sub { font-size: clamp(17px, 1.8vw, 20px); color: var(--muted); max-width: 34ch; margin: 0 0 30px; }
.sub em { color: var(--ink); font-style: italic; }
.meta { font-size: 13px; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); margin-top: 26px; }
.tree { width: 100%; height: auto; }
.tree .tl { font: 600 12px var(--sans); letter-spacing: .16em; fill: var(--muted); text-anchor: middle; }
.tree .tl.refused { fill: var(--coral); }
.tree .tl.small { letter-spacing: .04em; font-weight: 500; text-transform: none; }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; } .tree { max-width: 460px; margin: 0 auto; } }

/* Buttons */
.cta { display: flex; gap: 14px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 13px 22px; border-radius: 10px; font-weight: 600; font-size: 15.5px; text-decoration: none; transition: transform .12s, background .12s; }
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--gold); color: var(--navy); }
.btn.primary:hover { background: var(--gold-soft); }
.btn.ghost { border: 1.5px solid var(--line); color: var(--ink); }
.btn.ghost:hover { border-color: var(--gold); }

/* Type */
.eyebrow { font: 600 13px var(--sans); letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin: 0 0 12px; }
h2 { font: 700 clamp(30px, 4vw, 44px)/1.15 var(--serif); margin: 0 0 22px; letter-spacing: -.01em; max-width: 24ch; }
h3 { font: 600 19px var(--sans); margin: 0 0 12px; }
.muted { color: var(--muted); max-width: 68ch; }
blockquote { margin: 0 0 26px; padding: 4px 0 4px 26px; border-left: 3px solid var(--gold); font: 500 clamp(22px, 2.6vw, 30px)/1.4 var(--serif); color: var(--ink); }

/* Cards */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 760px) { .split { grid-template-columns: 1fr; } }
.card { background: rgba(255,255,255,.035); border: 1px solid rgba(255,255,255,.08); border-radius: 16px; padding: 26px 28px; }
.card.gold { border-color: var(--line); background: rgba(212,168,83,.07); }
.card ul { margin: 0; padding-left: 20px; color: var(--muted); }
.card li { margin-bottom: 6px; }
.card.gold li::marker { color: var(--gold); }

/* Rules */
.rules { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 12px; max-width: 820px; }
.rules li { position: relative; padding: 18px 22px 18px 72px; border-radius: 14px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.07); color: var(--muted); }
.rules strong { color: var(--ink); }
.rules span { position: absolute; left: 24px; top: 16px; font: 700 20px var(--serif); color: var(--gold); }

/* Results */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 10px 0 34px; }
@media (max-width: 860px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stats div { padding: 22px; border-radius: 14px; background: rgba(63,184,175,.08); border: 1px solid rgba(63,184,175,.25); }
.stats b { display: block; font: 700 46px/1 var(--serif); color: var(--teal); margin-bottom: 10px; }
.stats span { color: var(--ink); font-size: 15px; line-height: 1.45; }
.stats em { color: var(--muted); font-style: normal; }
.figure { border-radius: 16px; border: 1px solid var(--line); margin-top: 8px; }
.note { margin-top: 22px; padding: 16px 20px; border-left: 3px solid var(--coral); background: rgba(232,102,90,.07); border-radius: 0 12px 12px 0; color: var(--muted); font-size: 15.5px; max-width: 900px; }
.note strong { color: var(--ink); }

/* Open questions */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 960px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid { grid-template-columns: 1fr; } }
.q { display: block; padding: 22px; border-radius: 14px; background: rgba(255,255,255,.035); border: 1px solid rgba(255,255,255,.08); color: var(--muted); text-decoration: none; font-size: 15.5px; line-height: 1.55; transition: border-color .15s, transform .15s; }
.q:hover { border-color: var(--gold); transform: translateY(-2px); }
.q b { display: block; color: var(--gold); font: 700 18px var(--serif); margin-bottom: 6px; }
.q .tag { float: right; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--navy); background: var(--gold-soft); padding: 3px 8px; border-radius: 999px; }
.more { margin-top: 22px; }

/* Collaborate */
.collab { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 40px; align-items: start; }
.collab > *, .hero-grid > * { min-width: 0; }
@media (max-width: 860px) { .collab { grid-template-columns: minmax(0, 1fr); } }
.collab p { color: var(--muted); }
.tags { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0 30px; }
.tags li { padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line); color: var(--ink); font-size: 14.5px; }
.cite pre { margin: 0; background: rgba(0,0,0,.35); border: 1px solid var(--line); border-radius: 14px; padding: 20px; overflow-x: auto; }
.cite code { font: 14px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--gold-soft); }

footer { border-top: 1px solid var(--line); padding: 36px 0 48px; color: var(--muted); font-size: 15px; }
.foot p { margin: 6px 0; }

/* Status pill */
.status { display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px; border-radius: 999px; border: 1px solid rgba(233,207,142,.45); background: rgba(212,168,83,.1); color: var(--gold-soft); font-size: 14px; font-weight: 500; margin: 0 0 22px; }
.status i { width: 8px; height: 8px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 4px rgba(212,168,83,.18); }

/* Holds / doesn't hold */
.verdict { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 28px; }
@media (max-width: 760px) { .verdict { grid-template-columns: minmax(0, 1fr); } }
.verdict > div { border-radius: 16px; padding: 24px 26px; border: 1px solid; }
.verdict .holds { border-color: rgba(63,184,175,.35); background: rgba(63,184,175,.07); }
.verdict .open { border-color: rgba(232,102,90,.35); background: rgba(232,102,90,.06); }
.verdict h3 { margin-bottom: 14px; }
.verdict .holds h3 { color: var(--teal); }
.verdict .open h3 { color: var(--coral); }
.verdict ul { margin: 0; padding-left: 20px; color: var(--muted); }
.verdict li { margin-bottom: 8px; }
.verdict strong { color: var(--ink); }

/* Lessons */
.lessons { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; counter-reset: lesson; }
@media (max-width: 960px) { .lessons { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .lessons { grid-template-columns: minmax(0, 1fr); } }
.lesson { padding: 22px; border-radius: 14px; background: rgba(255,255,255,.035); border: 1px solid rgba(255,255,255,.08); counter-increment: lesson; }
.lesson::before { content: counter(lesson, decimal-leading-zero); display: block; font: 700 18px var(--serif); color: var(--gold); margin-bottom: 8px; }
.lesson b { display: block; color: var(--ink); font-size: 17px; margin-bottom: 6px; line-height: 1.4; }
.lesson p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.55; }
.lesson .src { display: block; margin-top: 10px; font-size: 12.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--gold-soft); opacity: .8; }

/* Roadmap */
.roadmap { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 860px) { .roadmap { grid-template-columns: minmax(0, 1fr); } }
.road { padding: 24px; border-radius: 16px; background: rgba(255,255,255,.035); border: 1px solid rgba(255,255,255,.08); }
.road .pillt { display: inline-block; font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; margin-bottom: 14px; font-weight: 600; }
.road .go { background: rgba(63,184,175,.15); color: var(--teal); }
.road .q { background: rgba(212,168,83,.15); color: var(--gold-soft); }
.road .no { background: rgba(169,179,204,.12); color: var(--muted); }
.road h3 { font: 600 20px var(--serif); }
.road p { color: var(--muted); font-size: 15.5px; margin: 0; }

/* Tables */
.table-wrap { overflow-x: auto; border-radius: 14px; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 640px; }
th, td { text-align: left; padding: 14px 16px; vertical-align: top; border-bottom: 1px solid rgba(255,255,255,.07); }
th { font: 600 12.5px var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--gold); background: rgba(212,168,83,.06); }
td { color: var(--muted); }
td:first-child { color: var(--ink); font-weight: 600; }
td .ar { font: 700 20px var(--arabic); color: var(--gold); display: block; }
.tag-ok { color: var(--teal); font-weight: 600; }
.tag-neg { color: var(--coral); font-weight: 600; }
.tag-open { color: var(--gold-soft); font-weight: 600; }

/* Page header for inner pages */
.page-head { padding: 64px 0 24px; }
.page-head h1 { font-size: clamp(44px, 7vw, 72px); }
.page-head .sub { max-width: 60ch; }
.callout { padding: 18px 22px; border-radius: 0 12px 12px 0; border-left: 3px solid var(--gold); background: rgba(212,168,83,.07); color: var(--muted); max-width: 900px; }
.callout strong { color: var(--ink); }
.links-row { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 18px; font-size: 15px; }
.chips { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 26px; }
.chips li { padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); color: var(--ink); font-size: 15px; }
.chips li span { font: 700 18px var(--arabic); color: var(--gold); margin-inline-end: 8px; }
.gates { counter-reset: gate; list-style: none; padding: 0; display: grid; gap: 10px; max-width: 860px; }
.gates li { padding: 14px 18px 14px 58px; position: relative; border-radius: 12px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.07); color: var(--muted); counter-increment: gate; }
.gates li::before { content: "G" counter(gate); position: absolute; left: 18px; top: 13px; font: 700 16px var(--serif); color: var(--gold); }
.gates strong { color: var(--ink); }

/* Arabic page */
[dir="rtl"] body, body[dir="rtl"] { font-family: "IBM Plex Sans Arabic", var(--sans); }
[dir="rtl"] h1, [dir="rtl"] h2, [dir="rtl"] .road h3 { font-family: "Amiri", var(--serif); letter-spacing: 0; }
[dir="rtl"] blockquote { border-left: 0; border-right: 3px solid var(--gold); padding: 4px 26px 4px 0; font-family: "Amiri", var(--serif); }
[dir="rtl"] .rules li { padding: 18px 72px 18px 22px; }
[dir="rtl"] .rules span { left: auto; right: 24px; }
[dir="rtl"] .eyebrow, [dir="rtl"] .meta { letter-spacing: 0; }
[dir="rtl"] .card ul, [dir="rtl"] .verdict ul { padding-left: 0; padding-right: 20px; }

/* Sections that are also .wrap keep their side gutters. */
section.wrap { padding-left: 24px; padding-right: 24px; }
@media (max-width: 620px) { .wrap, section.wrap { padding-left: 16px; padding-right: 16px; } }

/* Small lab-code labels, so plain words lead */
.code { display: inline-block; font: 600 11px var(--sans); letter-spacing: .06em; color: var(--gold-soft); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; margin-inline-start: 6px; vertical-align: 2px; white-space: nowrap; }
.updated { font-size: 13px; color: var(--muted); opacity: .85; }

/* Figures stacked with captions */
.figs { display: grid; gap: 22px; margin-top: 8px; }

/* Restart criteria */
.restart { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 8px; }
@media (max-width: 860px) { .restart { grid-template-columns: minmax(0, 1fr); } }
.restart > div { padding: 24px; border-radius: 16px; border: 1px solid var(--line); background: rgba(212,168,83,.06); }
.restart b { display: block; font: 700 32px var(--serif); color: var(--gold); margin-bottom: 8px; }
.restart h3 { font: 600 18px var(--sans); margin-bottom: 8px; }
.restart p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* About */
.about { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 32px; align-items: center; }
@media (max-width: 620px) { .about { grid-template-columns: minmax(0, 1fr); } }
.about img { width: 160px; height: 160px; border-radius: 50%; border: 3px solid var(--gold); object-fit: cover; }
.about p { color: var(--muted); max-width: 62ch; }
.about strong { color: var(--ink); }

/* Collaboration path */
.path { list-style: none; padding: 0; margin: 8px 0 30px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 860px) { .path { grid-template-columns: minmax(0, 1fr); } }
.path li { padding: 22px; border-radius: 14px; background: rgba(255,255,255,.035); border: 1px solid rgba(255,255,255,.08); color: var(--muted); font-size: 15.5px; }
.path li b { display: block; color: var(--ink); font-size: 17px; margin-bottom: 6px; }
.path li span { font: 700 14px var(--serif); color: var(--gold); display: block; margin-bottom: 6px; letter-spacing: .08em; }

/* Glossary */
.glossary { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 28px; margin: 0; }
@media (max-width: 760px) { .glossary { grid-template-columns: minmax(0, 1fr); } }
.glossary div { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.07); }
.glossary dt { color: var(--gold-soft); font-weight: 600; }
.glossary dd { margin: 4px 0 0; color: var(--muted); font-size: 15px; }