/* ---------- tokens ---------- */
:root {
  color-scheme: light;
  --navy: #0f2747;
  --blue: #1d4e89;
  --amber: #f59e0b;
  --amber-deep: #b45309;
  --green: #0e7c4a;
  --green-deep: #0a6239;
  --ink: #1f2937;
  --muted: #55606f;
  --line: #e2e7ee;
  --tint: #f5f7fa;
  --white: #fff;

  --math: #2563eb;
  --math-soft: #e8effe;
  --phys: #7c3aed;
  --phys-soft: #f1eafe;
  --code: #0e7490;
  --code-soft: #e2f4f8;
  --ai: #047857;
  --ai-soft: #e1f5ee;

  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgb(15 39 71 / 6%), 0 8px 24px rgb(15 39 71 / 6%);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-ar: "IBM Plex Sans Arabic", "Noto Naskh Arabic", "Segoe UI", Tahoma, sans-serif;
  --gutter: 16px;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  overflow-wrap: break-word;
}
html[dir="rtl"] body { font-family: var(--font-ar); line-height: 1.8; }

h1, h2, h3 { color: var(--navy); line-height: 1.2; margin: 0; text-wrap: balance; }
html[dir="rtl"] h1, html[dir="rtl"] h2, html[dir="rtl"] h3 { line-height: 1.4; }
h1 { font-size: clamp(2.1rem, 6vw, 3.4rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); font-weight: 700; letter-spacing: -0.01em; margin-block-end: 12px; }
h3 { font-size: 1.05rem; font-weight: 600; }
html[dir="rtl"] h1, html[dir="rtl"] h2 { letter-spacing: 0; }
p { margin: 0 0 12px; }
p:last-child { margin-block-end: 0; }
ul, ol { list-style: none; margin: 0; padding: 0; }
a { color: inherit; }
code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--tint);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 0.05em 0.35em;
  unicode-bidi: isolate;
  white-space: nowrap;
}
svg { display: block; width: 1.25em; height: 1.25em; flex: none; }
html[dir="rtl"] .flip-rtl { transform: scaleX(-1); }

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

.wrap { width: 100%; max-width: 1140px; margin-inline: auto; padding-inline: var(--gutter); }
.noscript { padding-block: 48px; }

.section { padding-block: 56px; scroll-margin-block-start: 80px; }
.section-tint { background: var(--tint); }
.section-lead { color: var(--muted); max-width: 62ch; margin-block-end: 28px; }
.kicker, .eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-block-end: 8px;
}
html[dir="rtl"] .kicker, html[dir="rtl"] .eyebrow { letter-spacing: 0; font-size: 0.9rem; }
.kicker { color: var(--amber-deep); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.15s ease, transform 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-amber { background: var(--amber); color: var(--navy); }
.btn-amber:hover { background: #fbb024; }
.btn-whatsapp { background: var(--green); color: var(--white); }
.btn-whatsapp:hover { background: var(--green-deep); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-block-start: 24px; }

/* ---------- header ---------- */
.site-header { background: var(--white); border-block-end: 1px solid var(--line); }
.header-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; padding-block: 10px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; margin-inline-end: auto; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--navy);
  color: var(--amber);
  font-weight: 800;
  font-family: var(--font);
  font-size: 0.95rem;
}
.brand-text { display: grid; line-height: 1.25; }
.brand-text strong { color: var(--navy); font-size: 0.98rem; }
.brand-text small { color: var(--muted); font-size: 0.78rem; }
.site-nav { order: 3; display: flex; justify-content: space-between; gap: 4px 16px; width: 100%; }
.site-nav a { color: var(--ink); font-size: 0.93rem; font-weight: 500; text-decoration: none; padding-block: 6px; }
.site-nav a:hover { color: var(--blue); text-decoration: underline; text-underline-offset: 4px; }
.lang-switch { display: flex; border: 1px solid var(--line); border-radius: 999px; padding: 2px; }
.lang-btn {
  min-width: 38px;
  min-height: 34px;
  border: 0;
  border-radius: 999px;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}
.lang-btn:hover { color: var(--navy); }
.lang-btn[aria-pressed="true"] { background: var(--navy); color: var(--white); }
.lang-btn[lang="ar"] { font-family: var(--font-ar); font-size: 1rem; line-height: 1; }

/* ---------- hero ---------- */
.hero { background: var(--navy); color: #dbe4f0; }
.hero h1 { color: var(--white); margin-block-end: 16px; }
.hero .eyebrow { color: var(--amber); }
.hero .lead { font-size: 1.08rem; max-width: 56ch; margin: 0; }
.hero-grid { display: grid; gap: 36px; padding-block: 48px; align-items: center; }

.example { background: var(--white); color: var(--ink); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.example-title { color: var(--navy); font-weight: 700; margin-block-end: 14px; }
.example-steps { display: grid; gap: 12px; }
.example-steps li { padding-block-end: 12px; border-block-end: 1px solid var(--line); }
.example-steps p { margin: 0; }
.example-label {
  display: block;
  color: var(--amber-deep);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
html[dir="rtl"] .example-label { letter-spacing: 0; font-size: 0.85rem; }
.formula { color: var(--navy); font-size: 1.2rem; font-weight: 700; text-align: start; }
html[dir="rtl"] .formula { text-align: end; font-family: var(--font); }
.formula sub { font-size: 0.65em; }
.example-note { color: var(--muted); font-size: 0.9rem; margin-block-start: 12px; }

/* ---------- about, values ---------- */
.about-grid { display: grid; gap: 28px; }
.about-grid > div > p { max-width: 62ch; }
.values { display: grid; gap: 12px; }
.value { padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--white); }
.value h3 { margin-block-end: 4px; }
.value p { color: var(--muted); font-size: 0.95rem; margin: 0; }

/* ---------- method ---------- */
.steps { display: grid; gap: 14px; margin-block-start: 24px; }
.step { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.step h3 { font-size: 1.2rem; margin-block-end: 6px; }
.step p { color: var(--muted); margin: 0; }
.step-num {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-block-end: 12px;
  border-radius: 50%;
  background: var(--amber);
  color: var(--navy);
  font-weight: 800;
}

/* ---------- principles ---------- */
.principles { display: grid; gap: 22px 40px; }
.principle { display: flex; gap: 12px; }
.principle h3 { margin-block-end: 2px; }
.principle p { color: var(--muted); font-size: 0.96rem; margin: 0; }
.tick {
  display: grid;
  place-items: center;
  flex: none;
  width: 24px;
  height: 24px;
  margin-block-start: 1px;
  border-radius: 50%;
  background: var(--ai-soft);
  color: var(--ai);
}
.tick svg { width: 14px; height: 14px; }

/* ---------- catalogue ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-btn {
  min-height: 42px;
  padding: 6px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
}
.filter-btn:hover { border-color: var(--navy); }
.filter-btn[aria-pressed="true"] { background: var(--navy); border-color: var(--navy); color: var(--white); }
.result-count { color: var(--muted); font-size: 0.88rem; margin-block: 14px; }

.course-grid { display: grid; gap: 14px; }
.course-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  text-decoration: none;
  transition: box-shadow 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.course-card:hover { border-color: var(--accent, var(--blue)); box-shadow: var(--shadow); transform: translateY(-2px); }
.course-top { display: flex; align-items: center; gap: 10px; margin-block-end: 6px; }
.course-level { color: var(--muted); font-size: 0.82rem; font-weight: 500; }
.course-title { color: var(--navy); font-size: 1.15rem; font-weight: 700; line-height: 1.3; }
.course-short { color: var(--muted); font-size: 0.94rem; flex: 1; }
.course-duration { color: var(--ink); font-size: 0.86rem; font-weight: 500; }
.course-link { display: inline-flex; align-items: center; gap: 6px; color: var(--accent, var(--blue)); font-size: 0.93rem; font-weight: 600; margin-block-start: 4px; }

.icon-tile {
  display: grid;
  place-items: center;
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: var(--accent-soft, var(--math-soft));
  color: var(--accent, var(--blue));
  font-size: 1.2rem;
}
.icon-tile-lg { width: 64px; height: 64px; font-size: 1.8rem; border-radius: 16px; }
[data-accent="math"] { --accent: var(--math); --accent-soft: var(--math-soft); }
[data-accent="phys"] { --accent: var(--phys); --accent-soft: var(--phys-soft); }
[data-accent="code"] { --accent: var(--code); --accent-soft: var(--code-soft); }
[data-accent="ai"]   { --accent: var(--ai);   --accent-soft: var(--ai-soft); }

/* ---------- formats ---------- */
.formats { display: grid; gap: 14px; margin-block-start: 20px; }
.format { display: flex; align-items: center; gap: 14px; padding: 18px; background: var(--tint); border-radius: var(--radius); }
.format .icon-tile { background: var(--navy); color: var(--white); }
.format p { color: var(--muted); margin: 0; }
.promises { display: grid; gap: 10px; margin-block-start: 22px; }
.promises li { display: flex; align-items: center; gap: 10px; font-weight: 500; }

/* ---------- contact ---------- */
.contact { background: var(--navy); color: #dbe4f0; padding-block: 52px; scroll-margin-block-start: 80px; }
.contact h2 { color: var(--white); }
.contact p { margin-block-end: 20px; max-width: 48ch; }
.contact-grid { display: grid; gap: 30px; align-items: center; }
.contact-list { display: grid; gap: 14px; }
.contact-list li { display: flex; align-items: center; gap: 14px; }
.contact-icon { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--amber); color: var(--navy); flex: none; }
.contact-list small { display: block; color: #aebbcc; }
.contact-list a { color: var(--white); font-weight: 600; font-size: 1.05rem; text-decoration: none; unicode-bidi: isolate; overflow-wrap: anywhere; }
.contact-list a:hover { text-decoration: underline; }

/* ---------- footer ---------- */
.site-footer { background: #0a1c34; color: #aebbcc; font-size: 0.9rem; padding-block: 24px; }
.site-footer strong { color: var(--white); }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px 30px; }
.footer-contact { display: grid; gap: 2px; }
.footer-contact a { color: #dbe4f0; text-decoration: none; unicode-bidi: isolate; text-align: start; }
.footer-contact a:hover { text-decoration: underline; }
html[dir="rtl"] .footer-contact a { text-align: end; }

/* ---------- course page ---------- */
.course-hero { background: var(--tint); border-block-end: 1px solid var(--line); padding-block: 22px 36px; }
.back-link { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 0.92rem; font-weight: 500; text-decoration: none; min-height: 40px; }
.back-link:hover { color: var(--navy); }
.course-hero-main { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 16px 20px; margin-block-start: 12px; }
.course-hero-main > div { flex: 1 1 280px; min-width: 0; }
.course-hero .eyebrow { color: var(--accent); }
.course-hero h1 { font-size: clamp(1.9rem, 5vw, 2.8rem); margin-block-end: 8px; }
.course-hero .lead { color: var(--muted); font-size: 1.1rem; max-width: 60ch; margin: 0; }

.course-layout { display: grid; gap: 36px; padding-block: 28px 36px; }
/* narrower than the page, so the floating button has a free margin on desktop */
.course-main { min-width: 0; max-width: 860px; }
.block { margin-block-end: 38px; scroll-margin-block-start: 80px; }
.values-row { margin-block-start: 6px; }

.facts { display: grid; gap: 14px; margin: 0; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.fact dt { color: var(--muted); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; }
html[dir="rtl"] .fact dt { letter-spacing: 0; font-size: 0.86rem; }
.fact dd { margin: 0; font-size: 0.96rem; }

.outcomes { display: grid; gap: 10px; }
.outcomes li { display: flex; gap: 10px; }

.program-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 8px 16px; margin-block-end: 14px; }
.program-head h2 { margin-block-end: 2px; }
.program-count { color: var(--muted); margin: 0; font-size: 0.92rem; }
.toggle-all {
  min-height: 40px;
  padding: 4px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--navy);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
}
.toggle-all:hover { border-color: var(--navy); }
.program-part { display: grid; gap: 8px; margin-block-end: 20px; }
.part-label { color: var(--accent, var(--navy)); font-size: 0.95rem; font-weight: 700; margin-block: 8px 2px; }

.program-item { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--white); }
.program-item[open] { border-color: #c8d1dd; }
.program-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
  min-height: 56px;
}
.program-item summary::-webkit-details-marker { display: none; }
.program-item summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin-inline-start: auto;
  /* physical sides on purpose: this arrow points down in every language */
  border-bottom: 2px solid var(--muted);
  border-right: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.15s ease;
}
.program-item[open] summary::after { transform: rotate(-135deg); }
.item-num {
  display: grid;
  place-items: center;
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent-soft, var(--math-soft));
  color: var(--navy);
  font-weight: 700;
  font-size: 0.9rem;
}
.item-title { font-weight: 600; color: var(--navy); line-height: 1.35; min-width: 0; }
.item-title small { display: block; color: var(--muted); font-size: 0.76rem; font-weight: 500; }
.item-body { padding: 0 14px 14px; color: var(--ink); font-size: 0.96rem; }
.item-body p { margin-block-end: 8px; }
.item-body p:last-child { margin: 0; }
.practice { color: var(--muted); }
.practice strong { color: var(--ink); font-weight: 600; }

.note { padding: 16px 18px; border-radius: var(--radius-sm); background: #fff7e6; border: 1px solid #fbe1a8; font-size: 0.95rem; }
.note h3 { font-size: 0.98rem; margin-block-end: 4px; }

.related h2 { margin-block-end: 20px; }
.not-found { min-height: 45vh; }
.not-found h1 { margin-block-end: 12px; font-size: clamp(1.8rem, 5vw, 2.6rem); }
.not-found p { margin-block-end: 20px; }

/* ---------- floating WhatsApp button ----------
   Mobile: a full-width bar. Desktop: a pill in the trailing corner, which is
   the left corner in Arabic because inset-inline-end follows the direction. */
.floating-cta {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  z-index: 20;
  padding: 10px var(--gutter) calc(10px + env(safe-area-inset-bottom));
  background: var(--white);
  border-block-start: 1px solid var(--line);
  box-shadow: 0 -6px 18px rgb(15 39 71 / 8%);
}
.btn-float { width: 100%; }
body.has-floating-cta { padding-block-end: calc(70px + env(safe-area-inset-bottom)); }

/* ---------- larger screens ---------- */
@media (min-width: 640px) {
  :root { --gutter: 24px; }
  .course-grid { grid-template-columns: repeat(2, 1fr); }
  .principles { grid-template-columns: repeat(2, 1fr); }
  .formats { grid-template-columns: repeat(2, 1fr); }
  .values-row { grid-template-columns: repeat(3, 1fr); }
  .facts { grid-template-columns: repeat(2, 1fr); gap: 18px 28px; }
  .promises { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 880px) {
  .site-header { position: sticky; inset-block-start: 0; z-index: 30; }
  .header-row { flex-wrap: nowrap; }
  .site-nav { order: 0; width: auto; gap: 22px; }
  .section { padding-block: 76px; }
  .hero-grid { grid-template-columns: 1.15fr 0.85fr; gap: 56px; padding-block: 76px; }
  .about-grid { grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: start; }
  .contact-grid { grid-template-columns: 1.2fr 0.8fr; }
  .course-grid { grid-template-columns: repeat(3, 1fr); }
  .facts { grid-template-columns: repeat(3, 1fr); }

  .floating-cta {
    inset-inline-start: auto;
    inset-inline-end: 28px;
    inset-block-end: 28px;
    padding: 0;
    background: none;
    border: 0;
    box-shadow: none;
  }
  .btn-float { width: auto; min-height: 56px; padding-inline: 26px; font-size: 1.05rem; box-shadow: 0 10px 28px rgb(14 124 74 / 35%); }
  body.has-floating-cta { padding-block-end: 0; }
  /* keeps the pill from covering the footer's contact details */
  body.has-floating-cta .site-footer { padding-block-end: 100px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
  .btn:hover, .course-card:hover { transform: none; }
}