/* OBK Médical — one stylesheet for en / fr / ar.
   RTL RULE: never use margin-left/right or padding-left/right or left/right.
   Use the logical properties only (inline-start / inline-end), or Arabic breaks.
   REVEAL RULE: never declare `transition` on a rule whose element carries
   .reveal — it replaces the transition .reveal sets and the element snaps in.
   Hover transitions therefore live on inner wrappers, never on .reveal itself. */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue:      #1B3A8C;
  --blue-deep: #142C69;
  --navy:      #1C2E40;
  --light:     #F4F6FA;
  --mid:       #8A9BB5;
  --line:      #DCE3ED;
  --white:     #FFFFFF;
  --ink:       #16212E;

  --serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --sans:  'Jost', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --arab:  'IBM Plex Sans Arabic', 'Segoe UI', Tahoma, sans-serif;

  --gutter: clamp(20px, 5vw, 64px);
  --maxw: 1180px;
  --rhythm: clamp(72px, 10vw, 140px);
}

:root[lang="ar"] {
  --serif: var(--arab);
  --sans:  var(--arab);
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--light);
  color: var(--navy);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 17px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; }

.skip {
  position: absolute; inset-block-start: -100px; inset-inline-start: 0;
  background: var(--blue); color: #fff; padding: 12px 20px; z-index: 999;
}
.skip:focus { inset-block-start: 0; }

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

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------------------------------------------------------------- reveal */
.js .reveal { opacity: 0; transform: translateY(20px); }
.js .reveal { transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.3,1); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; }
}

/* ---------------------------------------------------------------- header */
.head {
  position: sticky; inset-block-start: 0; z-index: 60;
  background: rgba(244, 246, 250, .88);
  backdrop-filter: saturate(150%) blur(12px);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
  border-block-end: 1px solid transparent;
}
.head.stuck { border-block-end-color: var(--line); }
.head__in {
  display: flex; align-items: center; gap: 24px;
  min-height: 96px;
}
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand img { width: clamp(210px, 23vw, 280px); }

.nav { margin-inline-start: auto; display: flex; align-items: center; gap: clamp(18px, 2.4vw, 34px); }
.nav a {
  text-decoration: none; font-size: 14.5px; letter-spacing: .04em;
  color: var(--navy); opacity: .78; position: relative; padding-block: 6px;
  transition: opacity .25s ease;
}
.nav a::after {
  content: ''; position: absolute; inset-block-end: 0; inset-inline-start: 0;
  width: 100%; height: 1px; background: var(--blue);
  transform: scaleX(0); transform-origin: inline-start;
  transition: transform .35s cubic-bezier(.2,.7,.3,1);
}
.nav a:hover { opacity: 1; }
.nav a:hover::after { transform: scaleX(1); }

.langs { display: flex; align-items: center; gap: 2px; margin-inline-start: 6px; }
.langs a {
  text-decoration: none; font-size: 12.5px; letter-spacing: .08em;
  text-transform: uppercase; padding: 5px 9px; border-radius: 4px;
  color: var(--mid); transition: color .25s ease, background-color .25s ease;
}
.langs a:hover { color: var(--navy); background: rgba(27,58,140,.07); }
.langs a[aria-current="true"] { color: var(--blue); background: rgba(27,58,140,.09); font-weight: 500; }

.burger {
  display: none; margin-inline-start: auto; width: 44px; height: 44px;
  background: none; border: 0; cursor: pointer; padding: 11px 9px;
  flex-direction: column; justify-content: space-between;
}
.burger span { display: block; height: 1.5px; background: var(--navy); transition: transform .3s ease, opacity .3s ease; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(9.75px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-9.75px) rotate(-45deg); }

@media (max-width: 880px) {
  .burger { display: flex; }
  .nav {
    /* Anchored to the sticky header (a positioned ancestor) rather than a
       hard-coded offset, so the drawer stays flush at any header height. */
    position: absolute; inset-block-start: 100%; inset-inline: 0;
    background: var(--white); border-block-start: 1px solid var(--line);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 8px var(--gutter) 24px;
    margin-inline-start: 0;
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: opacity .28s ease, transform .28s ease;
    box-shadow: 0 24px 40px -28px rgba(28,46,64,.4);
  }
  .nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav > a { padding-block: 15px; border-block-end: 1px solid var(--line); font-size: 17px; }
  .nav a::after { display: none; }
  .langs { padding-block-start: 18px; margin-inline-start: 0; }
}

/* ---------------------------------------------------------------- type */
h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.12; letter-spacing: -.01em; }
:root[lang="ar"] h1, :root[lang="ar"] h2, :root[lang="ar"] h3 { line-height: 1.35; letter-spacing: 0; font-weight: 500; }

.eyebrow {
  font-size: 12px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--blue); font-weight: 500; display: flex; align-items: center; gap: 12px;
}
:root[lang="ar"] .eyebrow { letter-spacing: 0; font-size: 13.5px; }
.eyebrow::before { content: ''; width: 28px; height: 1px; background: var(--blue); flex: 0 0 auto; }

.lead { font-size: clamp(17px, 1.35vw, 19.5px); color: #40566E; max-width: 62ch; }

/* ---------------------------------------------------------------- hero */
.hero { position: relative; padding-block: clamp(48px, 7vw, 86px) var(--rhythm); overflow: hidden; }
.hero::before {
  content: ''; position: absolute; inset-block-start: -280px; inset-inline-end: -220px;
  width: 720px; height: 720px; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle at 42% 42%, rgba(27,58,140,.10), transparent 68%);
}
.hero__in { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(32px, 5vw, 76px); align-items: center; position: relative; }
.hero h1 { font-size: clamp(40px, 6vw, 74px); margin-block: 22px 26px; }
.hero h1 em { font-style: italic; color: var(--blue); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-block-start: 34px; }

.btn {
  display: inline-flex; align-items: center; gap: 10px; text-decoration: none;
  font-size: 15px; letter-spacing: .03em; padding: 15px 30px; border-radius: 2px;
  border: 1px solid var(--blue); transition: background-color .3s ease, color .3s ease, transform .3s ease;
}
.btn--solid { background: var(--blue); color: #fff; }
.btn--solid:hover { background: var(--navy); border-color: var(--navy); transform: translateY(-2px); }
.btn--ghost { color: var(--blue); background: transparent; }
.btn--ghost:hover { background: rgba(27,58,140,.07); transform: translateY(-2px); }
.btn svg { flex: 0 0 auto; }
:root[dir="rtl"] .btn svg { transform: scaleX(-1); }

.portrait { position: relative; }
.portrait__frame {
  position: relative; border-radius: 300px 300px 6px 6px; overflow: hidden;
  background: linear-gradient(170deg, #E7ECF6 0%, #F7F9FC 60%);
}
.portrait__frame img { width: 100%; mix-blend-mode: multiply; }
.portrait::after {
  content: ''; position: absolute; inset-block-end: -18px; inset-inline-start: -18px;
  width: 120px; height: 120px; border-radius: 4px; z-index: -1;
  border: 1px solid var(--blue); opacity: .28;
}

@media (max-width: 900px) {
  .hero__in { grid-template-columns: 1fr; }
  /* Headline first on small screens: the portrait is worth showing, but not
     worth spending the whole first fold on before the value proposition. */
  .portrait { max-width: 300px; margin-inline: auto; }
  .portrait::after { display: none; }
}

/* ---------------------------------------------------------------- marks */
.marks {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--line); margin-block-start: clamp(40px, 6vw, 72px);
}
.marks div { padding: 26px 8px; text-align: center; }
.marks div + div { border-inline-start: 1px solid var(--line); }
.marks b { display: block; font-family: var(--serif); font-size: clamp(24px, 3vw, 34px); font-weight: 400; color: var(--blue); }
:root[lang="ar"] .marks b { font-weight: 600; }
.marks span { font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--mid); }
:root[lang="ar"] .marks span { letter-spacing: 0; text-transform: none; font-size: 14px; }

/* ---------------------------------------------------------------- sections */
section { padding-block: var(--rhythm); }
.sec__head { max-width: 760px; margin-block-end: clamp(38px, 5vw, 62px); }
.sec__head h2 { font-size: clamp(30px, 4.2vw, 50px); margin-block: 18px 20px; }

/* pillars */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 26px); }
@media (max-width: 940px) { .pillars { grid-template-columns: 1fr; } }

.pillar__inner {
  background: var(--white); border: 1px solid var(--line); border-radius: 3px;
  padding: clamp(28px, 3vw, 40px); height: 100%;
  display: flex; flex-direction: column;
  transition: border-color .35s ease, box-shadow .35s ease, transform .35s ease;
}
.pillar__inner:hover {
  border-color: rgba(27,58,140,.4);
  box-shadow: 0 30px 50px -34px rgba(28,46,64,.45);
  transform: translateY(-4px);
}
.pillar__num {
  font-size: 12px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--blue); font-weight: 500; margin-block-end: 18px;
}
:root[lang="ar"] .pillar__num { letter-spacing: 0; font-size: 13.5px; }
.pillar h3 { font-size: clamp(25px, 2.6vw, 31px); }
.pillar__line {
  font-family: var(--serif); font-style: italic; font-size: 19px;
  color: var(--blue); margin-block: 12px 18px; line-height: 1.4;
}
:root[lang="ar"] .pillar__line { font-style: normal; font-size: 18px; }
.pillar p { font-size: 15.5px; color: #4A5F76; }
.pillar ul { list-style: none; margin-block-start: 24px; padding-block-start: 22px; border-block-start: 1px solid var(--line); }
.pillar li { position: relative; padding-inline-start: 20px; font-size: 14.5px; color: #55697F; padding-block: 5px; }
.pillar li::before {
  content: ''; position: absolute; inset-inline-start: 0; inset-block-start: 15px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--blue); opacity: .55;
}

/* about */
.about { background: var(--white); border-block: 1px solid var(--line); }
.about__in { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 80px); align-items: start; }
@media (max-width: 900px) { .about__in { grid-template-columns: 1fr; } }
.about h2 { font-size: clamp(28px, 3.6vw, 44px); margin-block: 18px 0; }
.about p + p { margin-block-start: 20px; }
.about__body p { color: #45596F; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-block-start: 16px; }
.chips span {
  font-size: 13.5px; letter-spacing: .04em; padding: 7px 16px;
  border: 1px solid var(--line); border-radius: 100px; color: var(--navy); background: var(--light);
}
.about__lang { margin-block-start: 36px; padding-block-start: 28px; border-block-start: 1px solid var(--line); }
.about__lang h3 { font-family: var(--sans); font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--mid); font-weight: 400; }
:root[lang="ar"] .about__lang h3 { letter-spacing: 0; font-size: 14px; text-transform: none; }

/* approach */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(18px, 2.4vw, 40px); }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }
.step__inner { padding-block-start: 26px; border-block-start: 2px solid var(--blue); height: 100%; }
.step__num { font-family: var(--serif); font-size: 44px; color: var(--blue); opacity: .45; line-height: 1;
  font-variant-numeric: lining-nums tabular-nums; }
.step h3 { font-size: 23px; margin-block: 14px 12px; }
.step p { font-size: 15.5px; color: #4A5F76; }

/* audience */
.aud { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(18px, 2.4vw, 30px); margin-block-start: clamp(34px, 4vw, 52px); }
@media (max-width: 800px) { .aud { grid-template-columns: 1fr; } }
.aud__inner {
  background: linear-gradient(160deg, rgba(27,58,140,.05), rgba(27,58,140,0) 70%);
  border: 1px solid var(--line); border-radius: 3px; padding: clamp(26px, 3vw, 38px); height: 100%;
}
.aud__inner h3 { font-size: 22px; margin-block-end: 12px; }
.aud__inner p { font-size: 15.5px; color: #4A5F76; }

/* contact */
.contact { background: var(--navy); color: #E8EDF4; }
.contact .eyebrow { color: #9FB6D8; }
.contact .eyebrow::before { background: #9FB6D8; }
.contact h2 { color: #fff; font-size: clamp(30px, 4.2vw, 50px); margin-block: 18px 20px; }
.contact .lead { color: #B6C4D6; }
.contact__in { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(36px, 5vw, 76px); align-items: start; }
@media (max-width: 900px) { .contact__in { grid-template-columns: 1fr; } }

.cdetail { margin-block-start: 38px; display: grid; gap: 22px; }
.cdetail div { border-block-start: 1px solid rgba(255,255,255,.16); padding-block-start: 16px; }
.cdetail dt, .cdetail b {
  display: block; font-size: 11.5px; letter-spacing: .18em; text-transform: uppercase;
  color: #8AA0BF; font-weight: 400; margin-block-end: 6px;
}
:root[lang="ar"] .cdetail b { letter-spacing: 0; font-size: 13.5px; text-transform: none; }
.cdetail a { color: #fff; text-decoration: none; border-block-end: 1px solid rgba(255,255,255,.3); transition: border-color .3s ease; }
.cdetail a:hover { border-block-end-color: #fff; }

.form { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.12); border-radius: 3px; padding: clamp(24px, 3vw, 38px); }
.form h3 { font-size: 22px; color: #fff; margin-block-end: 22px; }
.field { margin-block-end: 18px; }
.field label { display: block; font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase; color: #9FB0C7; margin-block-end: 8px; }
:root[lang="ar"] .field label { letter-spacing: 0; font-size: 14px; text-transform: none; }
.field input, .field select, .field textarea {
  width: 100%; background: rgba(255,255,255,.06); color: #fff;
  border: 1px solid rgba(255,255,255,.18); border-radius: 2px;
  padding: 13px 15px; font-family: inherit; font-size: 16px; font-weight: 300;
  transition: border-color .3s ease, background-color .3s ease;
}
.field textarea { min-height: 128px; resize: vertical; }
.field select option { background: var(--navy); color: #fff; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: #9FB6D8; background: rgba(255,255,255,.1); }
.field input::placeholder, .field textarea::placeholder { color: #7E92AC; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 520px) { .row2 { grid-template-columns: 1fr; } }
.form .btn--solid { background: #fff; color: var(--navy); border-color: #fff; width: 100%; justify-content: center; }
.form .btn--solid:hover { background: #DCE6F5; border-color: #DCE6F5; }

.note { margin-block-start: 14px; font-size: 13px; color: #8AA0BF; }
.note--ok { color: #A9E0C0; }
.note--err { color: #F0B4B4; }

/* footer */
.foot { background: var(--navy); border-block-start: 1px solid rgba(255,255,255,.12); color: #8AA0BF; }
.foot__in { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; justify-content: space-between; padding-block: 32px; font-size: 13.5px; }
.foot a { color: #B6C4D6; text-decoration: none; }
.foot a:hover { color: #fff; }
.foot__langs { display: flex; gap: 16px; }

/* ================================================================ proof */
.proof { padding-block: clamp(38px, 5vw, 60px); }
.proof__row + .proof__row { margin-block-start: 34px; }
.proof h2 {
  font-family: var(--sans); font-size: 11.5px; letter-spacing: .2em;
  text-transform: uppercase; color: var(--mid); font-weight: 400;
  text-align: center; margin-block-end: 22px;
}
:root[lang="ar"] .proof h2 { letter-spacing: 0; font-size: 13.5px; text-transform: none; }
.proof__logos {
  list-style: none; display: flex; flex-wrap: wrap; justify-content: center;
  align-items: center; gap: clamp(24px, 4vw, 56px);
}
.proof__logos img { max-height: 34px; width: auto; opacity: .55; filter: grayscale(1); }
.proof__logos span { font-size: 17px; color: #5B6E85; letter-spacing: .02em; }

/* ============================================================== signals */
.signals__list {
  list-style: none; display: grid; grid-template-columns: 1fr 1fr;
  gap: 0 clamp(28px, 4vw, 64px);
}
@media (max-width: 780px) { .signals__list { grid-template-columns: 1fr; } }
.signals__list li {
  border-block-start: 1px solid var(--line);
  padding-block: clamp(20px, 2.4vw, 28px);
  display: flex; gap: 16px; align-items: flex-start;
}
.signals__list li::before {
  content: ''; flex: 0 0 auto; margin-block-start: 12px;
  width: 22px; height: 1px; background: var(--blue); opacity: .6;
}
.signals__list span {
  font-family: var(--serif); font-size: clamp(19px, 1.8vw, 24px);
  line-height: 1.35; color: var(--navy);
}
:root[lang="ar"] .signals__list span { line-height: 1.6; font-size: clamp(17px, 1.6vw, 20px); }

/* =============================================================== method */
.method { background: var(--light); }
.method__list { list-style: none; counter-reset: none; max-width: 900px; }
.mstep {
  display: grid; grid-template-columns: auto 1fr; gap: clamp(20px, 3vw, 44px);
  padding-block: clamp(26px, 3vw, 38px);
  border-block-start: 1px solid var(--line);
}
.mstep:last-child { border-block-end: 1px solid var(--line); }
.mstep__num {
  font-family: var(--serif); font-size: clamp(30px, 4vw, 46px);
  line-height: 1; color: var(--blue); opacity: .38; min-width: 2ch;
  /* Cormorant defaults to oldstyle figures, which turn "01" into "OI". */
  font-variant-numeric: lining-nums tabular-nums;
}
.mstep__body h3 { font-size: clamp(21px, 2.2vw, 27px); margin-block-end: 10px; }
.mstep__body p { font-size: 16px; color: #4A5F76; max-width: 60ch; }

/* ================================================================ quote */
.quote { background: var(--navy); padding-block: clamp(64px, 8vw, 110px); }
.quote blockquote { max-width: 900px; margin-inline: auto; text-align: center; }
.quote p {
  font-family: var(--serif); font-style: italic;
  font-size: clamp(24px, 3.4vw, 40px); line-height: 1.28; color: #fff;
}
:root[lang="ar"] .quote p { font-style: normal; line-height: 1.55; }
.quote cite {
  display: block; margin-block-start: 26px; font-family: var(--sans);
  font-style: normal; font-size: 12.5px; letter-spacing: .16em;
  text-transform: uppercase; color: #8AA0BF;
}
:root[lang="ar"] .quote cite { letter-spacing: 0; font-size: 14.5px; text-transform: none; }

/* ========================================================= testimonials */
.tests { background: var(--white); border-block: 1px solid var(--line); }
.tests__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: clamp(18px, 2.4vw, 30px); }
.tcard { background: var(--light); border: 1px solid var(--line); border-radius: 3px; padding: clamp(24px, 3vw, 34px); }
.tcard blockquote { font-family: var(--serif); font-size: 19px; line-height: 1.5; color: var(--navy); }
.tcard blockquote::before { content: '\201C'; color: var(--blue); opacity: .5; }
.tcard blockquote::after  { content: '\201D'; color: var(--blue); opacity: .5; }
.tcard figcaption { margin-block-start: 20px; padding-block-start: 16px; border-block-start: 1px solid var(--line); font-size: 14.5px; color: var(--navy); }
.tcard figcaption span { display: block; font-size: 13px; color: var(--mid); }

/* ================================================================== faq */
.faq__list { max-width: 860px; }
.faq__item { border-block-start: 1px solid var(--line); }
.faq__item:last-child { border-block-end: 1px solid var(--line); }
.faq__item summary {
  list-style: none; cursor: pointer; padding-block: clamp(20px, 2.2vw, 26px);
  display: flex; align-items: flex-start; gap: 20px;
  font-family: var(--serif); font-size: clamp(19px, 1.9vw, 24px);
  line-height: 1.35; color: var(--navy);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary span { flex: 1 1 auto; }
.faq__item summary::after {
  content: ''; flex: 0 0 auto; width: 14px; height: 14px; margin-block-start: 8px;
  background:
    linear-gradient(var(--blue), var(--blue)) center/14px 1.5px no-repeat,
    linear-gradient(var(--blue), var(--blue)) center/1.5px 14px no-repeat;
}
.faq__item[open] summary::after { background-size: 14px 1.5px, 0 0; }
.faq__a { padding-block-end: clamp(20px, 2.4vw, 28px); padding-inline-end: 34px; }
.faq__a p { font-size: 16px; color: #4A5F76; max-width: 68ch; }

/* ------------------------------------------------------- builder credit */
.foot__credit {
  border-block-start: 1px solid rgba(255,255,255,.1);
  padding-block: 20px 26px; text-align: center;
}
.foot__credit p { font-size: 12.5px; letter-spacing: .04em; color: #6F8299; }
:root[lang="ar"] .foot__credit p { letter-spacing: 0; font-size: 14px; }
.foot__credit a {
  color: #9FB6D8; text-decoration: none;
  border-block-end: 1px solid rgba(159,182,216,.35);
  transition: color .25s ease, border-color .25s ease;
}
.foot__credit a:hover { color: #fff; border-block-end-color: #fff; }