/* ============================================================
   ARCUSITE — Light Luxury Architectural Design System
   Light stone surfaces · Navy architectural blue · Graphite text
   ============================================================ */

:root{
  /* Surfaces */
  --bg-0:#F2F4F7;
  --bg-1:#FFFFFF;
  --bg-2:#FBFCFE;
  --bg-3:#E9EDF2;
  --line:rgba(24,44,66,.10);
  --line-strong:rgba(24,44,66,.18);

  /* Brand — navy architectural blue (from the logo) */
  --blue-100:#1E4E7C;
  --blue-300:#2B6BA3;
  --blue-400:#2E6FA3;
  --blue-500:#31517E;
  --blue-600:#2A4A74;
  --blue-700:#233F63;
  --blue-800:#1B3350;
  --blue-glow:rgba(49,81,126,.22);

  /* Graphite (was metallic silver) — prominent text roles */
  --silver-hi:#1F2933;
  --silver:#3E4A56;
  --silver-dim:#697684;

  /* Text (AA on light surfaces) */
  --text:#1C242E;
  --muted:#4E5A66;
  --faint:#6E7A87;

  /* Semantic */
  --success:#1F7A4D;
  --error:#C0392B;

  /* Type & rhythm */
  --font-ar:"Cairo","Tajawal","Noto Kufi Arabic",system-ui,sans-serif;
  --font-en:"Montserrat","Inter",system-ui,sans-serif;
  --radius:14px;
  --radius-sm:8px;
  --container:1240px;
  --header-h:78px;

  /* Motion */
  --ease-out:cubic-bezier(.22,1,.36,1);
  --dur:.28s;

  /* Z scale */
  --z-nav:100; --z-float:200; --z-modal:1000;

  /* Graphite metallic text gradient (dark, for light surfaces) */
  --metal:linear-gradient(165deg,#2A343F 0%,#4A5663 38%,#1F2933 52%,#55616E 70%,#333F4B 100%);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--font-ar);
  font-size:16.5px;
  line-height:1.75;
  overflow-x:hidden;
}
html[lang="en"] body{font-family:var(--font-en);font-size:16px;line-height:1.7}

img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
::selection{background:var(--blue-600);color:#fff}

h1,h2,h3,h4{line-height:1.28;margin:0 0 .5em;font-weight:800;letter-spacing:.2px}
html[lang="en"] h1,html[lang="en"] h2{letter-spacing:.5px}
p{margin:0 0 1em}

.container{max-width:var(--container);margin-inline:auto;padding-inline:clamp(20px,4vw,48px)}

/* ---------- Utility text ---------- */
.metal-text{
  background:var(--metal);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.blue-text{color:var(--blue-300)}
.eyebrow{
  display:inline-flex;align-items:center;gap:12px;
  font-size:.8rem;font-weight:700;letter-spacing:.35em;
  text-transform:uppercase;color:var(--blue-300);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:44px;height:1px;background:linear-gradient(90deg,transparent,var(--blue-400))}
html[dir="rtl"] .eyebrow::before{background:linear-gradient(-90deg,transparent,var(--blue-400))}
html[dir="rtl"] .eyebrow{letter-spacing:.18em}

.section-title{font-size:clamp(1.9rem,4vw,3rem)}
.section-sub{color:var(--muted);max-width:62ch;font-size:1.06rem}

/* ---------- Blueprint texture layers ---------- */
.blueprint{position:relative}
.blueprint::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(94,159,206,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(94,159,206,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 90% 80% at 50% 20%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 80% at 50% 20%,#000 30%,transparent 78%);
}

/* ---------- Scroll progress ---------- */
#scroll-progress{
  position:fixed;top:0;inset-inline-start:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--blue-600),var(--blue-300),var(--silver));
  z-index:calc(var(--z-nav) + 1);
  transition:width .1s linear;
}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:var(--z-nav);
  height:var(--header-h);
  display:flex;align-items:center;
  transition:background var(--dur) ease,border-color var(--dur) ease,box-shadow var(--dur) ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(10,12,14,.82);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 40px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;gap:28px;width:100%}

.brand{display:flex;align-items:center;gap:13px;min-height:44px}
.brand img{width:40px;height:37px}
.brand-name{display:flex;flex-direction:column;line-height:1.1}
.brand-name b{
  font-family:var(--font-en);font-size:1.22rem;font-weight:800;letter-spacing:.22em;
  background:var(--metal);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.brand-name span{font-size:.6rem;letter-spacing:.14em;color:var(--blue-300);font-family:var(--font-en);font-weight:600;text-transform:uppercase}
@media (max-width:480px){.brand-name span{display:none}.brand-name b{font-size:1.05rem}}
@media (max-width:620px){.brand-name{display:none}.brand img{width:46px;height:42px}}

.main-nav{display:flex;align-items:center;gap:4px;margin-inline-start:auto}
.main-nav a{
  position:relative;padding:12px 14px;font-size:.93rem;font-weight:700;color:var(--muted);
  border-radius:var(--radius-sm);transition:color var(--dur) ease;
}
.main-nav a:hover,.main-nav a:focus-visible{color:var(--text)}
.main-nav a.active{color:var(--blue-100)}
.main-nav a.active::after{
  content:"";position:absolute;inset-inline:14px;bottom:6px;height:2px;
  background:linear-gradient(90deg,var(--blue-400),transparent);border-radius:2px;
}

.header-cta{display:flex;align-items:center;gap:12px}
.lang-switch{
  display:flex;align-items:center;border:1px solid var(--line-strong);border-radius:999px;
  overflow:hidden;background:rgba(20,24,29,.6);
}
.lang-switch button{
  padding:9px 16px;font-size:.82rem;font-weight:700;color:var(--muted);
  min-height:40px;transition:all var(--dur) ease;letter-spacing:.05em;
}
.lang-switch button.active{background:var(--blue-700);color:#fff}
.lang-switch button:not(.active):hover{color:var(--text)}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:50px;padding:13px 30px;border-radius:var(--radius-sm);
  font-weight:800;font-size:.98rem;letter-spacing:.03em;cursor:pointer;
  transition:transform var(--dur) var(--ease-out),box-shadow var(--dur) ease,background var(--dur) ease,border-color var(--dur) ease;
  border:1px solid transparent;text-align:center;
}
.btn:active{transform:scale(.97)}
.btn-primary{
  background:linear-gradient(160deg,var(--blue-500),var(--blue-700));
  color:#fff;box-shadow:0 10px 32px var(--blue-glow),inset 0 1px 0 rgba(255,255,255,.18);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 44px var(--blue-glow),inset 0 1px 0 rgba(255,255,255,.22)}
.btn-ghost{
  border-color:var(--line-strong);color:var(--silver);
  background:rgba(255,255,255,.02);
}
.btn-ghost:hover{border-color:var(--silver-dim);color:var(--silver-hi);transform:translateY(-2px);background:rgba(255,255,255,.05)}
.btn-sm{min-height:44px;padding:10px 22px;font-size:.9rem}
.btn svg{width:18px;height:18px;flex:none}
html[dir="rtl"] .btn svg.arrow{transform:scaleX(-1)}

/* Mobile nav */
.nav-toggle{display:none;width:46px;height:46px;border-radius:var(--radius-sm);border:1px solid var(--line-strong);align-items:center;justify-content:center}
.nav-toggle svg{width:22px;height:22px;stroke:var(--silver)}

@media (max-width:1060px){
  .main-nav{
    position:fixed;top:var(--header-h);inset-inline:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(10,12,14,.97);backdrop-filter:blur(20px);
    padding:26px clamp(20px,5vw,40px);
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity var(--dur) ease,transform var(--dur) var(--ease-out);
    overflow-y:auto;z-index:var(--z-nav);
  }
  .main-nav.open{opacity:1;transform:none;pointer-events:auto}
  .main-nav a{font-size:1.15rem;padding:16px 10px;border-bottom:1px solid var(--line)}
  .nav-toggle{display:inline-flex}
  .header-cta .btn{display:none}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding:calc(var(--header-h) + 60px) 0 90px;
  overflow:hidden;
  background:
    radial-gradient(1100px 600px at 78% -10%,rgba(36,112,169,.16),transparent 60%),
    radial-gradient(900px 700px at 8% 110%,rgba(21,74,115,.14),transparent 60%),
    linear-gradient(180deg,#0B0E11 0%,var(--bg-0) 100%);
}
.hero::after{ /* vignette floor */
  content:"";position:absolute;inset-inline:0;bottom:0;height:200px;pointer-events:none;
  background:linear-gradient(180deg,transparent,var(--bg-0));
}
.hero-skyline{
  position:absolute;inset-inline:0;bottom:0;height:46%;pointer-events:none;opacity:.9;
}
.hero-skyline svg{width:100%;height:100%}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
.hero-copy h1{
  font-size:clamp(2.3rem,5.2vw,4.1rem);
  margin-bottom:22px;
}
.hero-copy .lede{color:var(--muted);font-size:1.13rem;max-width:58ch;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:46px}

.hero-stats{
  display:flex;gap:clamp(24px,4vw,54px);flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:28px;
}
.stat b{
  display:block;font-family:var(--font-en);font-size:1.9rem;font-weight:800;
  background:var(--metal);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat span{font-size:.85rem;color:var(--faint);font-weight:700}

/* Hero visual panel — cinematic arch card */
.hero-visual{position:relative;min-height:480px}
.hero-visual .arch-frame{
  position:absolute;inset:0;
  border-radius:260px 260px var(--radius) var(--radius);
  background:
    linear-gradient(200deg,rgba(59,132,188,.16),rgba(15,58,92,.05) 46%,rgba(0,0,0,.35)),
    linear-gradient(180deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line-strong);
  overflow:hidden;
  box-shadow:0 40px 90px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.06);
}
.hero-visual .arch-frame svg{position:absolute;inset:0;width:100%;height:100%}
.hero-visual .arch-ring{
  position:absolute;inset:-22px;
  border-radius:280px 280px var(--radius) var(--radius);
  border:1px solid rgba(196,206,218,.12);
  pointer-events:none;
}
.hero-badge{
  position:absolute;bottom:26px;inset-inline-start:-26px;
  background:rgba(15,18,21,.92);backdrop-filter:blur(12px);
  border:1px solid var(--line-strong);border-radius:var(--radius);
  padding:16px 22px;display:flex;align-items:center;gap:14px;
  box-shadow:0 20px 50px rgba(0,0,0,.5);
}
.hero-badge svg{width:34px;height:34px;flex:none}
.hero-badge b{display:block;font-size:.95rem}
.hero-badge span{font-size:.78rem;color:var(--faint)}

@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;gap:48px}
  .hero-visual{min-height:340px;margin-inline:10px}
  .hero-badge{inset-inline-start:-4px}
}

/* ---------- Sections ---------- */
.section{padding:clamp(72px,9vw,130px) 0;position:relative}
.section-dark{background:var(--bg-1)}
.section-head{margin-bottom:clamp(38px,5vw,64px)}
.section-head.center{text-align:center}
.section-head.center .section-sub{margin-inline:auto}
.section-head.center .eyebrow::before{display:none}

.hr-glow{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,transparent,var(--line-strong) 30%,var(--line-strong) 70%,transparent);
}

/* ---------- Statement ---------- */
.statement{position:relative;text-align:center}
.statement blockquote{
  margin:0 auto;max-width:920px;
  font-size:clamp(1.25rem,2.6vw,1.85rem);font-weight:700;line-height:1.85;
  color:var(--silver);
}
.statement blockquote em{font-style:normal;color:var(--blue-300)}
.statement .mark{
  width:60px;height:56px;margin:0 auto 30px;opacity:.9;
}
.statement footer{margin-top:30px;color:var(--faint);font-size:.9rem;letter-spacing:.25em;text-transform:uppercase;font-family:var(--font-en);font-weight:700}

/* ---------- Service cards ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media (max-width:1020px){.services-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.services-grid{grid-template-columns:1fr}}

.service-card{
  position:relative;padding:36px 30px 30px;border-radius:var(--radius);
  background:linear-gradient(180deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);
  transition:transform var(--dur) var(--ease-out),border-color var(--dur) ease,box-shadow var(--dur) ease;
  overflow:hidden;display:flex;flex-direction:column;
}
.service-card::before{ /* top metallic hairline */
  content:"";position:absolute;top:0;inset-inline:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(196,206,218,.35),transparent);
  opacity:0;transition:opacity var(--dur) ease;
}
.service-card::after{ /* blue corner glow */
  content:"";position:absolute;top:-70px;inset-inline-end:-70px;width:190px;height:190px;border-radius:50%;
  background:radial-gradient(circle,var(--blue-glow),transparent 65%);
  opacity:0;transition:opacity .4s ease;pointer-events:none;
}
.service-card:hover{transform:translateY(-6px);border-color:rgba(94,159,206,.35);box-shadow:0 26px 60px rgba(0,0,0,.5)}
.service-card:hover::before,.service-card:hover::after{opacity:1}

.service-icon{
  width:58px;height:58px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;
  background:linear-gradient(160deg,rgba(36,112,169,.22),rgba(15,58,92,.12));
  border:1px solid rgba(94,159,206,.28);
}
.service-icon svg{width:28px;height:28px;stroke:var(--blue-300);fill:none;stroke-width:1.6}
.service-card h3{font-size:1.18rem;margin-bottom:6px}
.service-card .en-sub{font-family:var(--font-en);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--faint);font-weight:700;margin-bottom:14px}
.service-card p{color:var(--muted);font-size:.96rem;flex:1}
.card-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;
  font-size:.88rem;font-weight:800;color:var(--blue-300);min-height:44px;
}
.card-link svg{width:16px;height:16px;transition:transform var(--dur) var(--ease-out)}
html[dir="rtl"] .card-link svg{transform:scaleX(-1)}
.service-card:hover .card-link svg{transform:translateX(5px)}
html[dir="rtl"] .service-card:hover .card-link svg{transform:scaleX(-1) translateX(5px)}

/* ---------- Before / After slider ---------- */
.ba-wrap{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:0 40px 90px rgba(0,0,0,.55);
  aspect-ratio:16/8.5;
  user-select:none;touch-action:pan-y;
}
.ba-layer{position:absolute;inset:0}
.ba-layer svg{width:100%;height:100%;display:block}
.ba-after{clip-path:inset(0 0 0 50%)}
html[dir="rtl"] .ba-after{clip-path:inset(0 50% 0 0)}
.ba-handle{
  position:absolute;top:0;bottom:0;left:50%;width:2px;
  background:linear-gradient(180deg,transparent,var(--silver) 15%,var(--silver) 85%,transparent);
  cursor:ew-resize;z-index:3;
}
.ba-handle::after{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:52px;height:52px;border-radius:50%;
  background:rgba(15,18,21,.9);border:1px solid var(--silver-dim);
  backdrop-filter:blur(8px);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23C4CBD4' stroke-width='2'%3E%3Cpath d='M8 7l-4 5 4 5M16 7l4 5-4 5'/%3E%3C/svg%3E");
  background-size:24px;background-position:center;background-repeat:no-repeat;
  box-shadow:0 10px 30px rgba(0,0,0,.6);
}
.ba-tag{
  position:absolute;top:18px;padding:7px 16px;border-radius:999px;
  font-size:.78rem;font-weight:800;letter-spacing:.08em;z-index:2;
  background:rgba(10,12,14,.72);backdrop-filter:blur(8px);border:1px solid var(--line-strong);
}
.ba-tag.before{inset-inline-start:18px;color:var(--silver-dim)}
.ba-tag.after{inset-inline-end:18px;color:var(--blue-100);border-color:rgba(94,159,206,.4)}

/* ---------- Heritage ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,80px);align-items:center}
@media (max-width:940px){.split{grid-template-columns:1fr}}
.heritage-visual{position:relative}
.heritage-visual .frame{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:0 40px 90px rgba(0,0,0,.5);
  aspect-ratio:4/4.6;position:relative;
  background:linear-gradient(180deg,var(--bg-3),var(--bg-1));
}
.heritage-visual .frame svg{position:absolute;inset:0;width:100%;height:100%}
.heritage-visual .caption{
  position:absolute;bottom:22px;inset-inline-start:22px;inset-inline-end:22px;
  background:rgba(10,12,14,.78);backdrop-filter:blur(10px);
  border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  padding:14px 18px;font-size:.85rem;color:var(--muted);
}
.feature-list{list-style:none;margin:26px 0 0;padding:0;display:grid;gap:14px}
.feature-list li{display:flex;gap:14px;align-items:flex-start}
.feature-list svg{width:22px;height:22px;flex:none;margin-top:4px;stroke:var(--blue-300);fill:none;stroke-width:1.8}
.feature-list b{display:block;font-size:1rem}
.feature-list span{color:var(--muted);font-size:.93rem}

/* ---------- Finishing tiers ---------- */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media (max-width:940px){.tiers{grid-template-columns:1fr}}
.tier{
  border-radius:var(--radius);padding:34px 30px;position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);
  transition:transform var(--dur) var(--ease-out),border-color var(--dur) ease;
}
.tier:hover{transform:translateY(-5px);border-color:rgba(94,159,206,.3)}
.tier.featured{
  border-color:rgba(94,159,206,.45);
  background:linear-gradient(180deg,rgba(27,91,140,.16),var(--bg-1));
  box-shadow:0 24px 60px rgba(0,0,0,.45);
}
.tier .tier-tag{
  display:inline-block;font-size:.72rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  color:var(--blue-300);border:1px solid rgba(94,159,206,.35);border-radius:999px;
  padding:5px 14px;margin-bottom:18px;font-family:var(--font-en);
}
.tier h3{font-size:1.3rem}
.tier p{color:var(--muted);font-size:.95rem}
.tier ul{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}
.tier li{display:flex;gap:10px;align-items:baseline;font-size:.93rem;color:var(--silver)}
.tier li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--blue-400);flex:none;transform:rotate(45deg)}

/* ---------- Process timeline ---------- */
.process-track{position:relative;display:grid;grid-template-columns:repeat(7,1fr);gap:14px}
.process-track::before{
  content:"";position:absolute;top:29px;inset-inline:36px;height:1px;
  background:linear-gradient(90deg,transparent,var(--line-strong) 8%,var(--line-strong) 92%,transparent);
}
@media (max-width:1080px){
  .process-track{grid-template-columns:1fr;gap:0}
  .process-track::before{inset-inline-start:29px;inset-inline-end:auto;top:36px;bottom:36px;height:auto;width:1px;
    background:linear-gradient(180deg,transparent,var(--line-strong) 8%,var(--line-strong) 92%,transparent)}
  .step{display:flex;gap:20px;align-items:flex-start;padding:16px 0}
}
.step{position:relative;text-align:center}
@media (max-width:1080px){.step{text-align:start}}
.step-num{
  width:58px;height:58px;border-radius:50%;margin-inline:auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-2);border:1px solid var(--line-strong);
  font-family:var(--font-en);font-weight:800;font-size:1.05rem;color:var(--silver);
  position:relative;z-index:1;flex:none;
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease,color var(--dur) ease;
}
@media (max-width:1080px){.step-num{margin-inline:0}}
.step.revealed .step-num{border-color:var(--blue-400);color:var(--blue-100);box-shadow:0 0 0 5px rgba(36,112,169,.12),0 0 26px var(--blue-glow)}
.step h3{font-size:1.02rem;margin:16px 0 4px}
.step p{font-size:.84rem;color:var(--faint);margin:0}

/* ---------- Portfolio ---------- */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:40px}
.filter-btn{
  padding:10px 20px;min-height:44px;border-radius:999px;font-size:.88rem;font-weight:700;
  border:1px solid var(--line-strong);color:var(--muted);
  transition:all var(--dur) ease;
}
.filter-btn:hover{color:var(--text);border-color:var(--silver-dim)}
.filter-btn.active{background:var(--blue-700);border-color:var(--blue-500);color:#fff}

.portfolio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media (max-width:1020px){.portfolio-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.portfolio-grid{grid-template-columns:1fr}}

.project-card{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-1);
  transition:transform var(--dur) var(--ease-out),border-color var(--dur) ease,box-shadow var(--dur) ease,opacity .3s ease;
}
.project-card:hover{transform:translateY(-6px);border-color:rgba(94,159,206,.35);box-shadow:0 26px 60px rgba(0,0,0,.5)}
.project-card.hidden{display:none}
.project-thumb{aspect-ratio:16/10.5;position:relative;overflow:hidden}
.project-thumb svg{width:100%;height:100%;transition:transform .5s var(--ease-out)}
.project-card:hover .project-thumb svg{transform:scale(1.045)}
.project-thumb .thumb-tag{
  position:absolute;top:14px;inset-inline-start:14px;
  font-size:.72rem;font-weight:800;letter-spacing:.1em;padding:6px 13px;border-radius:999px;
  background:rgba(10,12,14,.72);backdrop-filter:blur(8px);border:1px solid var(--line-strong);color:var(--blue-100);
}
.project-body{padding:24px 24px 26px}
.project-body h3{font-size:1.12rem;margin-bottom:4px}
.project-body .loc{font-size:.85rem;color:var(--faint);display:flex;align-items:center;gap:7px;margin-bottom:16px}
.project-body .loc svg{width:14px;height:14px;stroke:var(--blue-300);fill:none;stroke-width:2}
.project-meta{display:grid;grid-template-columns:1fr 1fr;gap:10px 18px;border-top:1px solid var(--line);padding-top:16px}
.project-meta div span{display:block;font-size:.72rem;color:var(--faint);letter-spacing:.08em;font-weight:700}
.project-meta div b{font-size:.9rem;color:var(--silver);font-weight:700}

/* Case-study rows (portfolio page) */
.case{border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-1);padding:clamp(24px,4vw,44px);margin-bottom:26px}
.case h3{font-size:1.35rem}
.case .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:20px}
@media (max-width:860px){.case .case-grid{grid-template-columns:1fr}}
.case dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:8px 18px;font-size:.93rem}
.case dt{color:var(--faint);font-weight:700}
.case dd{margin:0;color:var(--silver)}

/* ---------- Trust ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media (max-width:1020px){.trust-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.trust-grid{grid-template-columns:1fr}}
.trust-item{
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;
  background:linear-gradient(180deg,var(--bg-2),var(--bg-1));
  display:flex;flex-direction:column;gap:12px;
  transition:border-color var(--dur) ease,transform var(--dur) var(--ease-out);
}
.trust-item:hover{border-color:rgba(94,159,206,.3);transform:translateY(-4px)}
.trust-item svg{width:26px;height:26px;stroke:var(--blue-300);fill:none;stroke-width:1.7}
.trust-item b{font-size:1rem}
.trust-item span{font-size:.88rem;color:var(--muted)}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;border-radius:var(--radius);overflow:hidden;
  padding:clamp(44px,6vw,80px) clamp(26px,5vw,80px);
  background:
    radial-gradient(700px 320px at 85% 0%,rgba(59,132,188,.22),transparent 60%),
    linear-gradient(160deg,var(--blue-800),#0D1B28 55%,var(--bg-2));
  border:1px solid rgba(94,159,206,.28);
  text-align:center;
}
.cta-band h2{font-size:clamp(1.7rem,3.6vw,2.7rem)}
.cta-band p{color:var(--muted);max-width:64ch;margin-inline:auto}
.cta-band .hero-actions{justify-content:center;margin-bottom:0;margin-top:30px}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(30px,5vw,64px);align-items:start}
@media (max-width:940px){.contact-grid{grid-template-columns:1fr}}
.contact-cards{display:grid;gap:14px}
.contact-card{
  display:flex;align-items:center;gap:16px;padding:20px 22px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,var(--bg-2),var(--bg-1));
  transition:border-color var(--dur) ease,transform var(--dur) var(--ease-out);
  min-height:44px;
}
.contact-card:hover{border-color:rgba(94,159,206,.35);transform:translateY(-3px)}
.contact-card .cc-icon{
  width:48px;height:48px;border-radius:var(--radius-sm);flex:none;
  display:flex;align-items:center;justify-content:center;
  background:rgba(36,112,169,.16);border:1px solid rgba(94,159,206,.3);
}
.contact-card .cc-icon svg{width:22px;height:22px;stroke:var(--blue-300);fill:none;stroke-width:1.8}
.contact-card b{display:block;font-size:.98rem}
.contact-card span{font-size:.86rem;color:var(--muted);direction:ltr;unicode-bidi:embed}
.contact-card.whatsapp .cc-icon{background:rgba(63,176,127,.14);border-color:rgba(63,176,127,.35)}
.contact-card.whatsapp .cc-icon svg{stroke:var(--success)}

.form-card{
  border:1px solid var(--line-strong);border-radius:var(--radius);
  background:linear-gradient(180deg,var(--bg-2),var(--bg-1));
  padding:clamp(26px,4vw,44px);
  box-shadow:0 30px 80px rgba(0,0,0,.45);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:640px){.form-row{grid-template-columns:1fr}}
.field{margin-bottom:18px}
.field label{display:block;font-size:.88rem;font-weight:800;margin-bottom:8px;color:var(--silver)}
.field label .req{color:var(--error)}
.field input,.field select,.field textarea{
  width:100%;min-height:50px;padding:13px 16px;border-radius:var(--radius-sm);
  background:rgba(10,12,14,.6);border:1px solid var(--line-strong);color:var(--text);
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--blue-400);box-shadow:0 0 0 3px rgba(36,112,169,.22);
}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238E98A4' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:18px}
html[dir="rtl"] .field select{background-position:left 14px center}
.field .hint{font-size:.78rem;color:var(--faint);margin-top:6px}
.field .error-msg{display:none;font-size:.8rem;color:var(--error);margin-top:6px;font-weight:700}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--error)}
.field.invalid .error-msg{display:block}

.upload{
  border:1.5px dashed var(--line-strong);border-radius:var(--radius-sm);
  padding:22px;text-align:center;color:var(--faint);font-size:.9rem;cursor:pointer;
  transition:border-color var(--dur) ease,background var(--dur) ease;
}
.upload:hover{border-color:var(--blue-400);background:rgba(36,112,169,.06)}
.upload svg{width:26px;height:26px;stroke:var(--silver-dim);margin:0 auto 8px;fill:none;stroke-width:1.6}
.upload input{display:none}
.form-success{
  display:none;margin-top:16px;padding:14px 18px;border-radius:var(--radius-sm);
  background:rgba(63,176,127,.12);border:1px solid rgba(63,176,127,.4);color:#7FD8AE;font-weight:700;font-size:.92rem;
}
.form-success.show{display:block}

/* ---------- Footer ---------- */
.site-footer{background:#080A0C;border-top:1px solid var(--line);padding:70px 0 0;position:relative}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:50px}
@media (max-width:940px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{font-size:.82rem;letter-spacing:.2em;text-transform:uppercase;color:var(--silver-dim);margin-bottom:20px;font-family:var(--font-en)}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.site-footer ul a{color:var(--muted);font-size:.93rem;transition:color var(--dur) ease;display:inline-block;padding:2px 0;min-height:28px}
.site-footer ul a:hover{color:var(--blue-100)}
.footer-brand p{color:var(--faint);font-size:.9rem;max-width:36ch;margin-top:16px}
.footer-slogan{font-size:.95rem;color:var(--silver);font-weight:700;margin-top:8px}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:.82rem;color:var(--faint);
}

/* ---------- Floating actions ---------- */
.float-actions{
  position:fixed;bottom:22px;inset-inline-end:22px;z-index:var(--z-float);
  display:flex;flex-direction:column;gap:12px;align-items:flex-end;
}
.float-wa{
  width:58px;height:58px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,#2BA84A,#1E7A38);
  box-shadow:0 14px 38px rgba(43,168,74,.4);
  transition:transform var(--dur) var(--ease-out),box-shadow var(--dur) ease;
}
.float-wa:hover{transform:translateY(-4px) scale(1.05);box-shadow:0 20px 48px rgba(43,168,74,.5)}
.float-wa svg{width:28px;height:28px;fill:#fff}
.float-consult{
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(15,18,21,.92);backdrop-filter:blur(12px);
  border:1px solid rgba(94,159,206,.4);border-radius:999px;
  padding:12px 22px;min-height:48px;font-size:.88rem;font-weight:800;color:var(--blue-100);
  box-shadow:0 14px 38px rgba(0,0,0,.5);
  transition:transform var(--dur) var(--ease-out),border-color var(--dur) ease;
}
.float-consult:hover{transform:translateY(-3px);border-color:var(--blue-300)}
.float-consult svg{width:18px;height:18px;stroke:var(--blue-300);fill:none;stroke-width:2}
@media (max-width:640px){.float-consult{display:none}}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  padding:calc(var(--header-h) + clamp(56px,9vw,110px)) 0 clamp(50px,7vw,90px);
  background:
    radial-gradient(900px 420px at 80% -20%,rgba(36,112,169,.16),transparent 60%),
    linear-gradient(180deg,#0B0E11,var(--bg-0));
  border-bottom:1px solid var(--line);
  position:relative;overflow:hidden;
}
.page-hero h1{font-size:clamp(2.1rem,4.6vw,3.4rem)}
.page-hero .lede{color:var(--muted);font-size:1.1rem;max-width:66ch}
.breadcrumbs{display:flex;gap:8px;align-items:center;font-size:.82rem;color:var(--faint);margin-bottom:22px;flex-wrap:wrap}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--blue-100)}
.breadcrumbs .sep{opacity:.5}

/* ---------- Reveal animations ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}
.reveal.revealed{opacity:1;transform:none}
.reveal-d1{transition-delay:.08s}
.reveal-d2{transition-delay:.16s}
.reveal-d3{transition-delay:.24s}
.reveal-d4{transition-delay:.32s}
.reveal-d5{transition-delay:.4s}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- Focus visibility ---------- */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--blue-300);outline-offset:3px;border-radius:4px;
}

/* ---------- Misc ---------- */
.text-center{text-align:center}
.mt-40{margin-top:40px}
.mt-60{margin-top:60px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:26px}
@media (max-width:860px){.grid-2{grid-template-columns:1fr}}

/* Blog cards */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media (max-width:1020px){.blog-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.blog-grid{grid-template-columns:1fr}}
.blog-card{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--bg-1);
  transition:transform var(--dur) var(--ease-out),border-color var(--dur) ease;
  display:flex;flex-direction:column;
}
.blog-card:hover{transform:translateY(-5px);border-color:rgba(94,159,206,.35)}
.blog-thumb{aspect-ratio:16/9;overflow:hidden}
.blog-thumb svg{width:100%;height:100%}
.blog-body{padding:24px;flex:1;display:flex;flex-direction:column}
.blog-body .meta{font-size:.78rem;color:var(--faint);letter-spacing:.06em;margin-bottom:10px;font-weight:700}
.blog-body h3{font-size:1.1rem}
.blog-body p{color:var(--muted);font-size:.92rem;flex:1}

/* Service detail sections */
.svc-detail{scroll-margin-top:calc(var(--header-h) + 20px)}
.svc-detail .split{align-items:start}
.svc-visual{
  border-radius:var(--radius);border:1px solid var(--line-strong);overflow:hidden;
  aspect-ratio:16/11;position:relative;background:linear-gradient(180deg,var(--bg-3),var(--bg-1));
  box-shadow:0 30px 70px rgba(0,0,0,.45);
}
.svc-visual svg{position:absolute;inset:0;width:100%;height:100%}

/* ---------- Arabic (Cairo) refinements ---------- */
/* Arabic script must never be letter-spaced — it breaks glyph joining */
html[dir="rtl"] :is(h1,h2,h3,h4,p,a,button,li,label,b,dt,dd,blockquote,.eyebrow,.ba-tag,.thumb-tag,.filter-btn,.footer-bottom,.blog-body .meta){letter-spacing:0}
html[dir="rtl"] body{line-height:1.85}
html[dir="rtl"] h1,html[dir="rtl"] h2,html[dir="rtl"] h3{line-height:1.5}
html[dir="rtl"] .site-footer h4{letter-spacing:0}

/* ============================================================
   LIGHT THEME OVERRIDES — surfaces that were hard-coded dark
   ============================================================ */

/* Header & navigation */
.site-header.scrolled{
  background:rgba(255,255,255,.88);
  box-shadow:0 8px 30px rgba(20,40,60,.08);
}
@media (max-width:1060px){
  .main-nav{background:rgba(250,251,253,.98)}
}
.lang-switch{background:#fff}
.main-nav a.active{color:var(--blue-700)}
.brand-name b{
  background:linear-gradient(165deg,#5F5F5F 0%,#8D8D8D 45%,#525252 60%,#7B7B7B 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.brand-name span{color:#6F7377}

/* Buttons */
.btn-ghost{background:#fff;border-color:rgba(24,44,66,.24);color:#33404D}
.btn-ghost:hover{border-color:#7E8FA0;color:#101820;background:#fff}
.btn-primary{box-shadow:0 10px 28px var(--blue-glow),inset 0 1px 0 rgba(255,255,255,.18)}

/* Hero & page heroes */
.hero{
  background:
    radial-gradient(1100px 600px at 78% -10%,rgba(49,81,126,.10),transparent 60%),
    radial-gradient(900px 700px at 8% 110%,rgba(43,107,163,.08),transparent 60%),
    linear-gradient(180deg,#FDFDFE 0%,var(--bg-0) 100%);
}
.page-hero{
  background:
    radial-gradient(900px 420px at 80% -20%,rgba(49,81,126,.10),transparent 60%),
    linear-gradient(180deg,#FDFDFE,var(--bg-0));
}
.blueprint::before{
  background-image:
    linear-gradient(rgba(49,81,126,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(49,81,126,.07) 1px,transparent 1px);
}
.eyebrow{color:var(--blue-600)}
.hero-skyline{opacity:.75}
.hero-badge{
  background:rgba(255,255,255,.94);
  box-shadow:0 16px 40px rgba(20,40,60,.14);
}
.arch-ring{border-color:rgba(24,44,66,.14)}
.hero-visual .arch-ring{border-color:rgba(24,44,66,.14)}

/* Sections */
.section-dark{background:#E9EDF2}
.hr-glow{background:linear-gradient(90deg,transparent,rgba(24,44,66,.16) 30%,rgba(24,44,66,.16) 70%,transparent)}

/* Cards & panels: lighter shadows */
.service-card:hover{box-shadow:0 22px 48px rgba(20,40,60,.14)}
.service-card::before{background:linear-gradient(90deg,transparent,rgba(24,44,66,.25),transparent)}
.project-card:hover{box-shadow:0 22px 48px rgba(20,40,60,.14)}
.tier.featured{
  background:linear-gradient(180deg,rgba(49,81,126,.07),#fff);
  box-shadow:0 20px 44px rgba(20,40,60,.12);
}
.form-card{box-shadow:0 24px 60px rgba(20,40,60,.10)}
.ba-wrap{box-shadow:0 30px 70px rgba(20,40,60,.22)}
.heritage-visual .frame{box-shadow:0 30px 70px rgba(20,40,60,.20)}
.hero-visual .arch-frame{box-shadow:0 30px 70px rgba(20,40,60,.22),inset 0 1px 0 rgba(255,255,255,.06)}
.svc-visual{box-shadow:0 24px 54px rgba(20,40,60,.18)}
.step-num{background:#fff}
.card-link{color:var(--blue-600)}

/* Chips that sit on top of dark artwork stay light-on-dark */
.ba-tag.before{color:#C7CFD8}
.ba-tag.after{color:#BBD8EE}
.thumb-tag{color:#BBD8EE}
.heritage-visual .caption{color:#B9C2CC}

/* CTA band keeps its deep navy — force light text inside */
.cta-band{border-color:rgba(49,81,126,.35)}
.cta-band h2{color:#F4F7FA}
.cta-band p{color:rgba(238,243,248,.82)}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#EAF0F6}
.cta-band .btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}

/* Floating actions */
.float-consult{
  background:rgba(255,255,255,.96);
  border-color:rgba(49,81,126,.4);
  color:var(--blue-700);
  box-shadow:0 14px 34px rgba(20,40,60,.16);
}
.float-consult svg{stroke:var(--blue-600)}

/* Footer — light stone */
.site-footer{background:#E7EBF0;border-top:1px solid var(--line)}
.site-footer h4{color:#5A6673}
.footer-brand p{color:var(--muted)}
.footer-slogan{color:var(--silver-hi)}
.footer-bottom{color:var(--faint)}

/* Forms / inputs (if re-enabled later) */
.field input,.field select,.field textarea{background:#fff;border-color:rgba(24,44,66,.2);color:var(--text)}
.form-success{background:rgba(31,122,77,.1);border-color:rgba(31,122,77,.4);color:#166344}

/* Scroll progress */
#scroll-progress{background:linear-gradient(90deg,var(--blue-500),var(--blue-300),#8FA3B8)}

/* ============================================================
   PHOTOGRAPHY — real project imagery
   ============================================================ */
.arch-frame picture,.heritage-visual .frame picture,.svc-visual picture{position:absolute;inset:0;width:100%;height:100%}
.arch-frame img,.heritage-visual .frame img,.svc-visual img{width:100%;height:100%;object-fit:cover;object-position:center}
.ba-layer picture,.ba-layer img{width:100%;height:100%;object-fit:cover;object-position:center;display:block}
.ba-wrap::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,14,20,.22),transparent 32%);pointer-events:none;z-index:1}
.project-thumb picture{display:block;width:100%;height:100%}
.project-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease-out)}
.project-card:hover .project-thumb img{transform:scale(1.03)}
.blog-thumb picture{display:block;width:100%;height:100%}
.blog-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease-out)}
.blog-card:hover .blog-thumb img{transform:scale(1.03)}
.tier-photo{margin:-34px -30px 24px;overflow:hidden;border-bottom:1px solid var(--line)}
.tier-photo picture{display:block}
.tier-photo img{width:100%;aspect-ratio:16/9;height:auto;object-fit:cover;display:block}
.about-photos{display:grid;gap:18px}
.about-photos picture{display:block;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-strong);box-shadow:0 24px 54px rgba(20,40,60,.16)}
.about-photos img{width:100%;height:auto;display:block}
.stage-photo{margin:4px 0 20px;border-radius:var(--radius-sm);overflow:hidden;max-width:620px;border:1px solid var(--line);box-shadow:0 14px 34px rgba(20,40,60,.12)}
.stage-photo picture{display:block}
.stage-photo img{width:100%;aspect-ratio:21/9;height:auto;object-fit:cover;display:block}
.contact-photo{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-strong);box-shadow:0 20px 44px rgba(20,40,60,.14)}
.contact-photo picture{display:block}
.contact-photo img{width:100%;aspect-ratio:16/9;height:auto;object-fit:cover;display:block}

/* ============================================================
   BRAND / LOGO — professional presentation
   ============================================================ */
.brand{gap:14px}
.brand img{width:48px;height:44px;filter:drop-shadow(0 2px 5px rgba(20,40,60,.18))}
.brand-name b{font-size:1.26rem;letter-spacing:.3em}
html[dir="rtl"] .brand-name b{letter-spacing:.3em}
.brand-name span{font-size:.57rem;letter-spacing:.24em;margin-top:3px}
html[dir="rtl"] .brand-name span{letter-spacing:.24em}
.site-footer .brand img{width:54px;height:49px}
.statement .mark{width:82px;height:75px;filter:drop-shadow(0 6px 16px rgba(20,40,60,.22))}

/* Faint brand-mark watermark on the navy CTA bands */
.cta-band::before{
  content:"";position:absolute;top:50%;inset-inline-end:-40px;z-index:0;
  transform:translateY(-50%);
  width:min(380px,55%);aspect-ratio:260/218;
  background:url("../assets/logo-mark-light.svg") no-repeat center/contain;
  opacity:.08;pointer-events:none;
}
.cta-band > *{position:relative;z-index:1}

/* Faint brand-mark watermark on inner page heroes */
.page-hero::after{
  content:"";position:absolute;top:58%;inset-inline-end:-30px;z-index:0;
  transform:translateY(-50%);
  width:min(400px,42%);aspect-ratio:260/218;
  background:url("../assets/logo.svg") no-repeat center/contain;
  opacity:.05;pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}