/* =========================================================================
   ALTHOLATHI CONSULTING ENGINEERS — Design System
   Matched to the approved design reference: Times New Roman serif type,
   the navy / gold palette, and the reference's spacing, radii and shadow
   values, applied consistently across the full multi-page site.
   ========================================================================= */

:root{
  --navy:#0c2946;
  --navy-2:#12395f;
  --navy-deep:#081d32;
  --gold:#b8843c;         /* design-reference gold accent */
  --gold-soft:#d8b06f;
  --accent:var(--gold);
  --accent-soft:var(--gold-soft);
  --accent-tint:#f3ead9;
  --ink:#18232f;
  --muted:#65717e;
  --line:#e6e9ed;
  --paper:#ffffff;
  --soft:#f5f7f9;
  --max:1180px;
  --radius:18px;
  --radius-sm:10px;
  --shadow:0 16px 40px rgba(12,41,70,.10);
  --shadow-lg:0 30px 70px rgba(12,41,70,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{max-width:100%;overflow-x:hidden}
body{
  margin:0;
  font-family:"Times New Roman", Times, serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button,input,textarea,select{font:inherit}
::selection{background:var(--accent-tint);color:var(--navy)}

.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.section{padding:88px 0}
.section.soft{background:var(--soft)}
.section.navy{background:var(--navy);color:#fff}
.section.tight{padding:60px 0}

.eyebrow{
  color:var(--gold);
  font-weight:700;
  letter-spacing:.02em;
  margin:0 0 10px;
}
html[dir="rtl"] .eyebrow{letter-spacing:0}

h1,h2,h3,h4{line-height:1.25;margin:0 0 18px}
h1{font-size:clamp(2.25rem,5vw,4.8rem)}
h2{font-size:clamp(1.9rem,3vw,3rem)}
h3{font-size:1.28rem}
h4{font-size:1.05rem}
p{margin:0 0 18px}
.lead{font-size:1.12rem;color:var(--muted);max-width:760px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;padding:13px 22px;border-radius:999px;
  border:1px solid transparent;font-weight:700;cursor:pointer;
  transition:.2s ease;
  white-space:nowrap;
}
.btn.primary{background:var(--navy);color:#fff}
.btn.primary:hover{background:var(--navy-2);transform:translateY(-1px)}
.btn.secondary{border-color:var(--navy);color:var(--navy);background:#fff}
.btn.secondary:hover{background:var(--soft);transform:translateY(-1px)}
.btn.gold{background:var(--gold);color:#fff}
.btn.gold:hover{background:#a7722e;transform:translateY(-1px)}
.btn.outline-light{border-color:rgba(255,255,255,.4);color:#fff;background:transparent}
.btn.outline-light:hover{background:rgba(255,255,255,.1);transform:translateY(-1px)}
.btn.navy{background:var(--navy);color:#fff}
.btn.navy:hover{background:var(--navy-2);transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:.86rem}
/* On dark (navy) sections, primary must stay gold for contrast, matching the leadership/CTA treatment in the design reference */
.cta-band .btn.primary,
.leadership-band .btn.primary{background:var(--gold);color:#fff}
.cta-band .btn.primary:hover,
.leadership-band .btn.primary:hover{background:#a7722e}

/* ============ Header ============ */
header{
  position:sticky;top:0;z-index:200;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(12,41,70,.08);
  transition:box-shadow .3s ease;
}
header.scrolled{box-shadow:0 8px 24px rgba(12,41,70,.06)}
.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:0;position:relative;z-index:210}
.logo-img{height:72px;width:auto;display:block}

nav#mainNav ul{list-style:none;display:flex;gap:8px;margin:0;padding:0;align-items:center}
nav#mainNav > ul > li{position:relative}
nav#mainNav > ul > li > a{
  font-weight:600;color:#273645;padding:10px 14px;border-radius:999px;
  display:inline-flex;align-items:center;gap:6px;font-size:.95rem;transition:.2s ease;
}
nav#mainNav > ul > li > a:hover{color:var(--accent);background:var(--accent-tint)}
.has-dropdown > a::after{content:"";width:6px;height:6px;border-inline-end:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);margin-top:-3px;opacity:.6}
.dropdown-menu{
  list-style:none;margin:0;padding:10px;min-width:300px;max-width:calc(100vw - 40px);position:absolute;
  top:calc(100% + 6px);inset-inline-start:0;background:#fff;border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;
  transform:translateY(10px);transition:.25s var(--ease);z-index:1000
}
.dropdown-menu li{display:block}
.dropdown-menu a{display:block;padding:11px 14px;border-radius:10px;font-weight:600;color:#273645;font-size:.92rem}
.dropdown-menu a:hover{background:var(--soft);color:var(--accent)}
.dropdown-menu a.dropdown-all{font-weight:800;color:var(--navy);border-bottom:1px solid var(--line);border-radius:10px 10px 0 0;margin-bottom:4px;padding-bottom:13px}
.has-dropdown:hover .dropdown-menu,.has-dropdown:focus-within .dropdown-menu,.has-dropdown.open .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}

.nav-actions{display:flex;align-items:center;gap:10px;position:relative;z-index:210}
.lang{
  border:1px solid var(--line);background:#fff;border-radius:999px;
  padding:9px 16px;font-weight:700;cursor:pointer;font-size:.88rem;color:var(--navy);
  display:flex;align-items:center;gap:6px;transition:.2s ease;
}
.lang:hover{border-color:var(--accent);color:var(--accent)}
.menu-btn{display:none;border:0;background:transparent;font-size:1.5rem;cursor:pointer;color:var(--navy);padding:6px;line-height:1}

/* ============ Mobile nav ============ */
@media(max-width:960px){
  nav#mainNav{display:none}
  nav#mainNav.open{
    display:block;position:fixed;z-index:150;top:0;inset-inline:0;height:100vh;height:100dvh;background:#fff;
    padding:88px 20px 40px;overflow-y:auto;animation:fadeSlide .3s var(--ease);
  }
  nav#mainNav.open > ul{flex-direction:column;align-items:stretch;gap:2px}
  nav#mainNav.open > ul > li > a{padding:15px 6px;border-radius:0;border-bottom:1px solid var(--line);font-size:1.02rem}
  nav#mainNav .dropdown-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;display:none;flex-direction:column;align-items:stretch;gap:2px;min-width:0;max-width:none;width:100%;padding-inline-start:14px;margin-top:4px}
  nav#mainNav .has-dropdown.open .dropdown-menu{display:flex}
  .has-dropdown > a::after{margin-inline-start:auto}
  .menu-btn{display:block}
}
@keyframes fadeSlide{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}

/* ============ Hero (site-wide inner page hero) ============ */
.page-hero{
  position:relative;min-height:420px;display:grid;align-items:end;
  background:linear-gradient(180deg,rgba(8,29,50,.35),rgba(8,29,50,.86)),var(--hero-img,none) center/cover no-repeat;
  color:#fff;padding-top:60px;
}
.page-hero .container{padding-bottom:56px}
.page-hero .eyebrow{color:var(--gold-soft)}
.page-hero h1{color:#fff;max-width:820px}
.page-hero p.lead{color:rgba(255,255,255,.82)}
.breadcrumb{display:flex;gap:8px;align-items:center;font-size:.85rem;color:rgba(255,255,255,.65);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:var(--accent-soft)}

/* ============ Home hero ============ */
.hero{
  min-height:760px;display:grid;align-items:center;position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.20) 0%,rgba(255,255,255,.18) 33%,rgba(255,255,255,.1) 66%,rgba(255,255,255,.02) 100%),
    url("../img/hero.jpg") center/cover no-repeat;
  z-index:0;
}
html[dir="ltr"] .hero::before{
  background:linear-gradient(270deg,rgba(255,255,255,.20) 0%,rgba(255,255,255,.18) 33%,rgba(255,255,255,.1) 66%,rgba(255,255,255,.02) 100%),
    url("../img/hero.jpg") center/cover no-repeat;
}
.hero .container{position:relative;z-index:1}
.hero-content{max-width:660px;padding:80px 0}
.hero h1 em{color:var(--gold);font-style:normal}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-note{
  margin-top:22px;color:var(--navy);font-weight:700;font-size:.88rem;
  display:inline-flex;align-items:center;background:rgba(255,255,255,.9);
  padding:10px 18px;border-radius:999px;box-shadow:0 8px 20px rgba(12,41,70,.12);
}

/* ============ Stats ============ */
.stats{background:var(--navy);color:#fff;margin-top:-1px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:30px;text-align:center;border-inline-start:1px solid rgba(255,255,255,.12)}
.stat:first-child{border-inline-start:0}
.stat strong{display:block;font-size:2rem;color:var(--accent-soft)}
.stat span{font-size:.88rem;color:rgba(255,255,255,.75)}

/* ============ Cards / services ============ */
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:42px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;transition:.25s ease;position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d9c29a}
.card::before{content:"";position:absolute;inset-inline-start:0;top:0;width:4px;height:100%;background:var(--accent)}
.card .idx{font-size:.78rem;font-weight:800;color:var(--line);letter-spacing:.05em;margin-bottom:14px}
.icon{
  width:52px;height:52px;border-radius:14px;background:#eef3f7;color:var(--navy);
  display:grid;place-items:center;margin-bottom:22px;
}
.icon svg{width:24px;height:24px}
.card p{font-size:.94rem;color:var(--muted);margin-bottom:16px}
.card-link{font-weight:800;color:var(--navy);font-size:.9rem;display:inline-flex;align-items:center;gap:6px;transition:.2s ease}
.card-link:hover{color:var(--accent);gap:9px}

/* ============ Why us / split ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.image-frame{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);position:relative}
.image-frame img{width:100%;height:520px;object-fit:cover}
.check-list{display:grid;gap:16px;margin-top:28px}
.check{display:flex;gap:14px;align-items:flex-start}
.check b{color:var(--navy)}
.tick{
  flex:0 0 28px;height:28px;border-radius:50%;background:var(--accent);
  color:#fff;display:grid;place-items:center;font-size:.8rem;margin-top:2px;
}

/* ============ Projects ============ */
.projects{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.project{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:.25s ease;
}
.project:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.project .project-img{width:100%;height:240px;object-fit:cover}
.project-img-wrap{overflow:hidden}
.project-body{padding:22px}
.tag{display:inline-block;color:var(--accent);font-size:.82rem;font-weight:800;margin-bottom:8px}
.project .loc{font-size:.82rem;color:var(--muted);margin-top:-8px;margin-bottom:12px;display:flex;align-items:center;gap:6px}

/* ============ Leadership band ============ */
.leadership-band{
  background:linear-gradient(135deg,var(--navy),#173f67);color:#fff;border-radius:28px;
  padding:46px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;
}
.leadership-band p{color:rgba(255,255,255,.8);max-width:760px}

/* ============ Process / methodology ============ */
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.process-step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.process-step .num{font-size:1.8rem;font-weight:800;color:var(--accent-tint);-webkit-text-stroke:1.4px var(--accent);color:transparent;margin-bottom:10px}

/* ============ Clients / logos ============ */
.logos{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:30px}
.logo-box{min-height:86px;border:1px solid var(--line);border-radius:14px;display:grid;place-items:center;color:#8b96a0;font-weight:800;background:#fff;font-size:.82rem;text-align:center;padding:8px}

/* ============ Client logo marquee ============ */
.marquee{
  margin-top:36px;overflow:hidden;position:relative;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
}
.marquee-track{display:flex;align-items:center;gap:22px;width:max-content;animation:marquee 46s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{
  flex:0 0 auto;width:150px;height:96px;border:1px solid var(--line);border-radius:14px;
  background:#fff;display:grid;place-items:center;padding:14px;
}
.marquee-item img{max-width:100%;max-height:100%;object-fit:contain;filter:grayscale(45%);opacity:.85;transition:.25s ease}
.marquee-item:hover img{filter:grayscale(0%);opacity:1}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
html[dir="rtl"] .marquee-track{animation-name:marquee-rtl}
@keyframes marquee-rtl{from{transform:translateX(0)}to{transform:translateX(50%)}}
@media(prefers-reduced-motion:reduce){.marquee-track{animation:none;flex-wrap:wrap;justify-content:center}}

/* ============ CTA band ============ */
.cta-band{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 30%,rgba(184,132,60,.25),transparent 55%)}
.cta-inner{position:relative;z-index:1;text-align:center;padding:90px 0}
.cta-inner h2{color:#fff;max-width:680px;margin-inline:auto}
.cta-inner p{color:rgba(255,255,255,.75);max-width:600px;margin-inline:auto}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px}

/* ============ Contact ============ */
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px}
.contact-list{display:grid;gap:18px;margin-top:30px}
.contact-item{padding:18px 0;border-bottom:1px solid var(--line)}
.contact-item b{display:block;color:var(--navy);margin-bottom:4px;font-size:.85rem;text-transform:uppercase;letter-spacing:.03em}
form{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:block;font-weight:700;margin-bottom:6px;color:#324252}
input,select,textarea{width:100%;border:1px solid #d9dee4;border-radius:12px;padding:12px 14px;background:#fff}
textarea{min-height:130px;resize:vertical}
.full{grid-column:1/-1}
.notice{font-size:.83rem;color:var(--muted);margin-top:12px}
.office-hours{display:grid;gap:8px;margin-top:14px}
.office-hours div{display:flex;justify-content:space-between;font-size:.9rem;padding:6px 0;border-bottom:1px dashed var(--line)}
.map-frame{border-radius:20px;overflow:hidden;border:1px solid var(--line);height:280px;margin-top:22px;background:var(--soft);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.9rem;text-align:center;gap:10px;flex-direction:column}

/* ============ Footer ============ */
footer{background:var(--navy-deep);color:#d7dee5;padding:46px 0 24px}
.footer-logo-wrap{display:inline-flex;align-items:center;background:#fff;border-radius:14px;padding:10px 14px;box-shadow:0 10px 24px rgba(0,0,0,.10)}
.footer-logo-wrap .logo-img{height:58px}
.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr .9fr;gap:40px}
.footer-grid h3{color:#fff;font-size:.9rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:18px}
.footer-grid a{display:block;margin:9px 0;color:#aebbc7;font-size:.94rem;transition:.2s ease}
.footer-grid a:hover{color:var(--accent-soft)}
.footer-lang{margin-top:20px}
.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:20px;font-size:.85rem;color:#9dadbb;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ============ WhatsApp float ============ */
.float-wa{
  position:fixed;inset-inline-end:24px;bottom:24px;width:58px;height:58px;border-radius:50%;
  background:#25d366;display:grid;place-items:center;box-shadow:0 12px 28px rgba(37,211,102,.4);
  z-index:150;transition:.25s ease;
}
.float-wa:hover{transform:scale(1.08)}
.float-wa svg{width:28px;height:28px;fill:#fff}

/* ============ Reveal animation ============ */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:translateY(0)}
.reveal-stagger > *{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal-stagger.in > *{opacity:1;transform:translateY(0)}
.reveal-stagger.in > *:nth-child(1){transition-delay:.05s}
.reveal-stagger.in > *:nth-child(2){transition-delay:.12s}
.reveal-stagger.in > *:nth-child(3){transition-delay:.19s}
.reveal-stagger.in > *:nth-child(4){transition-delay:.26s}
.reveal-stagger.in > *:nth-child(5){transition-delay:.33s}
.reveal-stagger.in > *:nth-child(6){transition-delay:.4s}
.reveal-stagger.in > *:nth-child(7){transition-delay:.47s}
.reveal-stagger.in > *:nth-child(8){transition-delay:.54s}
@media(prefers-reduced-motion:reduce){
  .reveal,.reveal-stagger > *{opacity:1;transform:none;transition:none}
}

/* ============ Language visibility ============ */
[data-en]{display:none}
html[lang="en"] [data-ar]{display:none}
html[lang="en"] [data-en]{display:initial}

/* ============ Utility ============ */
.pill{display:inline-flex;align-items:center;gap:8px;background:var(--accent-tint);color:var(--accent);font-weight:700;font-size:.8rem;padding:8px 14px;border-radius:999px}
.divider{height:1px;background:var(--line);margin:70px 0}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.kicker-list{display:grid;gap:14px}
.kicker-list li{display:flex;gap:12px;align-items:flex-start;list-style:none;font-size:.96rem;color:var(--ink)}
.kicker-list li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:9px;flex:none}
.timeline{display:grid;gap:0;border-inline-start:2px solid var(--line);padding-inline-start:30px;margin-inline-start:10px}
.timeline-item{position:relative;padding-bottom:40px}
.timeline-item::before{content:"";position:absolute;inset-inline-start:-38px;top:2px;width:16px;height:16px;border-radius:50%;background:var(--accent);border:3px solid #fff;box-shadow:0 0 0 2px var(--accent)}
.timeline-item:last-child{padding-bottom:0}
.timeline-item .yr{font-weight:800;color:var(--navy);margin-bottom:4px}

/* ============ Responsive ============ */
@media(min-width:961px) and (max-width:1180px){
  .container{width:min(var(--max),calc(100% - 28px))}
  nav#mainNav > ul{gap:2px}
}
@media(max-width:960px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .split,.contact-grid,.two-col{grid-template-columns:1fr}
  .projects{grid-template-columns:1fr 1fr}
  .logos{grid-template-columns:repeat(3,1fr)}
  .process-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:700px){
  .container{width:min(100% - 24px,var(--max))}
  .section{padding:70px 0}
  .hero{min-height:640px}
  .hero-content{padding:64px 0;max-width:100%}
  .page-hero{min-height:320px}
  .stats-grid,.cards,.projects,.form-grid,.footer-grid,.process-grid{grid-template-columns:1fr}
  .stat{border-inline-start:0;border-top:1px solid rgba(255,255,255,.12)}
  .stat:first-child{border-top:0}
  .section-head{display:block}
  .section-head .btn{margin-top:20px}
  .logos{grid-template-columns:repeat(2,1fr)}
  .leadership-band{grid-template-columns:1fr;padding:34px;text-align:center}
  .image-frame img{height:340px}
  .cta-inner{padding:60px 0}
  h1{font-size:clamp(2rem,8vw,2.6rem)}
}