/* ─── RESET & BASE ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --carbon:   #263238;
  --storm:    #455A64;
  --blue:     #2196F3;
  --deep-blue:#1565C0;
  --mist:     #ECEFF1;
  --pewter:   #78909C;
  --slate:    #37474F;
  --white:    #FFFFFF;

  --font: 'Inter', Arial, sans-serif;
  --font-ar: 'Noto Sans Arabic', 'Inter', Arial, sans-serif;

  --nav-h: 64px;
  --max-w: 1120px;
  --gap: clamp(1.5rem, 4vw, 3rem);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--slate);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.rtl {
  font-family: var(--font-ar);
  direction: rtl;
  text-align: right;
}

a { color: inherit; text-decoration: none; }

/* ─── CONTAINER ────────────────────────────────────────────── */
.container {
  width: min(var(--max-w), 100% - 2 * var(--gap));
  margin-inline: auto;
}

/* ─── NAV ──────────────────────────────────────────────────── */
.nav {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  height: var(--nav-h);
  background: var(--carbon);
  z-index: 100;
  border-bottom: 1.5px solid var(--blue);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: min(var(--max-w), 100% - 2 * var(--gap));
  margin-inline: auto;
}

.nav__wordmark {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .25em;
  color: var(--white);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__links a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--pewter);
  transition: color .2s;
}

.nav__links a:hover { color: var(--white); }

.nav__lang {
  color: var(--blue) !important;
  border: 1px solid var(--blue);
  padding: .25rem .75rem;
  border-radius: 2px;
  transition: background .2s, color .2s !important;
}

.nav__lang:hover {
  background: var(--blue);
  color: var(--white) !important;
}

/* ─── BUTTONS ──────────────────────────────────────────────── */
.btn {
  display: inline-block;
  background: var(--blue);
  color: var(--white);
  font-size: .9rem;
  font-weight: 600;
  padding: .75rem 2rem;
  letter-spacing: .05em;
  transition: background .2s;
}

.btn:hover { background: var(--deep-blue); }

.btn--outline {
  background: transparent;
  color: var(--blue);
  border: 1.5px solid var(--blue);
}

.btn--outline:hover {
  background: var(--blue);
  color: var(--white);
}

/* ─── SECTION LABELS ───────────────────────────────────────── */
.section-label {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: .75rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--carbon);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

/* ─── HERO ─────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  background: var(--carbon);
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}

.hero__inner {
  width: min(var(--max-w), 100% - 2 * var(--gap));
  margin-inline: auto;
  position: relative;
  z-index: 2;
  padding-block: 5rem;
}

.hero__label {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 1.25rem;
}

.hero__title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1;
  margin-bottom: 1.5rem;
  letter-spacing: -.01em;
}

.hero__sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--pewter);
  max-width: 520px;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

/* Geometric diamond accent */
.hero__geo {
  position: absolute;
  inset-inline-end: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(300px, 45vw, 600px);
  aspect-ratio: 1;
  pointer-events: none;
  z-index: 1;
}

.geo-diamond {
  width: 100%;
  height: 100%;
  border: 1.5px solid rgba(33,150,243,.15);
  transform: rotate(45deg);
  position: relative;
}

.geo-diamond::before {
  content: '';
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(33,150,243,.08);
  transform: rotate(0deg);
}

.geo-diamond::after {
  content: '';
  position: absolute;
  inset-inline-start: 50%;
  top: 0;
  bottom: 0;
  width: 1.5px;
  background: rgba(33,150,243,.25);
  transform: translateX(-50%) rotate(0deg);
}

.rtl .hero__geo { inset-inline-end: auto; inset-inline-start: -5%; }

/* ─── APPROACH ─────────────────────────────────────────────── */
.approach {
  padding-block: clamp(4rem, 8vw, 7rem);
  background: var(--white);
}

.approach__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem 6rem;
  margin-top: 3rem;
}

@media (max-width: 680px) {
  .approach__list { grid-template-columns: 1fr; gap: 2.5rem; }
}

.approach__item {
  border-inline-start: 3px solid var(--blue);
  padding-inline-start: 1.5rem;
}

.approach__name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--carbon);
  margin-bottom: .6rem;
}

.approach__desc {
  font-size: .9rem;
  color: var(--storm);
  line-height: 1.75;
}

/* ─── ABOUT ────────────────────────────────────────────────── */
.about {
  padding-block: clamp(4rem, 8vw, 7rem);
  background: var(--carbon);
}

.about .section-title { color: var(--white); }

.about__inner {
  display: flex;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.about__text {
  max-width: 640px;
}

@media (max-width: 680px) {
  .about__inner { flex-direction: column; align-items: flex-start; }
}

.about__text p {
  color: var(--pewter);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 560px;
  margin-bottom: 1rem;
}

.about__text p:last-child { margin-bottom: 0; }

.accent-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  border: 1px solid rgba(33,150,243,.3);
  padding: 2.5rem 3rem;
  position: relative;
}

.accent-block::before {
  content: '';
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 100%;
  height: 3px;
  background: var(--blue);
}

.accent-block__word {
  font-size: 3rem;
  font-weight: 700;
  color: var(--white);
  font-family: var(--font-ar);
  letter-spacing: .05em;
}

.accent-block__def {
  font-size: .85rem;
  color: var(--blue);
  letter-spacing: .1em;
  text-transform: uppercase;
}

/* ─── CONTACT ──────────────────────────────────────────────── */
.contact {
  padding-block: clamp(4rem, 8vw, 7rem);
  background: var(--mist);
}

.contact__inner { max-width: 640px; }

.contact__body {
  color: var(--storm);
  margin-bottom: 2rem;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ─── FOOTER ───────────────────────────────────────────────── */
.footer {
  background: var(--carbon);
  border-top: 1.5px solid var(--blue);
  padding-block: 2rem;
}

.footer__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer__wordmark {
  font-size: .875rem;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--white);
}

.footer__tagline {
  font-size: .875rem;
  color: var(--blue);
}

.footer__copy {
  font-size: .8rem;
  color: var(--pewter);
  margin-inline-start: auto;
}

.footer__lang {
  font-size: .8rem;
  color: var(--blue);
  border: 1px solid rgba(33,150,243,.4);
  padding: .2rem .6rem;
  transition: background .2s;
}

.footer__lang:hover { background: rgba(33,150,243,.15); }

/* ─── HAMBURGER BUTTON ─────────────────────────────────────── */
.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-inline-end: -8px;
}

.nav__burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition: transform .25s, opacity .25s;
}

.nav__burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ─── MOBILE NAV ───────────────────────────────────────────── */
@media (max-width: 600px) {
  .nav__burger { display: flex; }

  .nav__links {
    display: none;
    position: fixed;
    inset-block-start: var(--nav-h);
    inset-inline: 0;
    background: var(--carbon);
    border-top: 1px solid rgba(33,150,243,.2);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: .5rem 0 1rem;
    z-index: 99;
  }

  .nav__links.open { display: flex; }

  .nav__links a {
    width: 100%;
    padding: .85rem 1.5rem;
    font-size: 1rem;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .nav__lang {
    margin: .5rem 1.5rem 0;
    width: auto;
  }

  .footer__inner { gap: 1rem; }
  .footer__copy { margin-inline-start: 0; width: 100%; }
}

/* ─── MOBILE HERO ──────────────────────────────────────────── */
@media (max-width: 600px) {
  .hero__inner { padding-block: 3rem; }
  .hero__geo { display: none; }
}

/* ─── SCROLL REVEAL ────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .5s ease, transform .5s ease; }
.reveal.visible { opacity: 1; transform: none; }

.nav--scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.4); }

/* ─── RTL OVERRIDES ────────────────────────────────────────── */
.rtl .service-card::before {
  inset-inline-start: auto;
  inset-inline-end: 0;
}