/* ===================================================================
   97s Engineering Services Ltd — Master Stylesheet
   Color Palette: White (#FFFFFF), Black (#0A0A0A), Light Blue (#3EAAFF)
   Typography: Inter (Google Fonts)
   =================================================================== */

/* ---------- CSS Custom Properties (Design Tokens) ---------- */
:root {
  --color-white: #FFFFFF;
  --color-black: #0A0A0A;
  --color-blue: #3EAAFF;
  --color-blue-dark: #1E8CE6;
  --color-blue-light: #E8F4FF;
  --color-blue-glow: rgba(62, 170, 255, 0.35);
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;
  --gradient-hero: linear-gradient(135deg, rgba(10,10,10,0.85) 0%, rgba(30,41,59,0.75) 50%, rgba(62,170,255,0.25) 100%);
  --gradient-blue: linear-gradient(135deg, #3EAAFF 0%, #1E8CE6 100%);
  --gradient-dark: linear-gradient(180deg, #0A0A0A 0%, #1E293B 100%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.95) 0%, rgba(232,244,255,0.6) 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --shadow-blue: 0 8px 32px rgba(62,170,255,0.2);
  --shadow-blue-lg: 0 12px 48px rgba(62,170,255,0.3);
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;
  --font-size-6xl: 4.5rem;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  --space-6xl: 10rem;
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  --transition-fast: 150ms cubic-bezier(0.4,0,0.2,1);
  --transition-base: 300ms cubic-bezier(0.4,0,0.2,1);
  --transition-slow: 500ms cubic-bezier(0.4,0,0.2,1);
  --transition-spring: 500ms cubic-bezier(0.34,1.56,0.64,1);
  --max-width: 1280px;
  --nav-height: 80px;
  --top-bar-height: 42px;
}

/* ---------- Reset ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--nav-height) + 32px)}
body{font-family:var(--font-primary);font-size:var(--font-size-base);line-height:1.7;color:var(--gray-700);background:#f5f7fa;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:color var(--transition-fast)}
ul,ol{list-style:none}
button{border:none;cursor:pointer;font-family:inherit;background:none}

/* ---------- Utilities ---------- */
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 var(--space-xl)}
.section-padding{padding:var(--space-5xl) 0}
.text-center{text-align:center}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}

/* ---------- Display Typography ---------- */
::selection {
  background: rgba(62,170,255,0.2);
  color: var(--color-black);
}

/* ===================================================================
   TOP HEADER BAR
   =================================================================== */
.top-bar{
  background:var(--gray-900);
  height:var(--top-bar-height);
  display:flex;
  align-items:center;
  font-size:var(--font-size-xs);
  color:var(--gray-400);
  position:relative;
  z-index:1001;
}
.top-bar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.top-bar-left{
  display:flex;
  align-items:center;
  gap:var(--space-md);
}
.top-bar-social-label{
  text-transform:uppercase;
  letter-spacing:0.1em;
  font-weight:600;
  color:var(--gray-500);
}
.top-bar-socials{
  display:flex;
  align-items:center;
  gap:var(--space-sm);
}
.top-bar-socials a{
  display:flex;
  align-items:center;
  justify-content:center;
  width:26px;
  height:26px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,0.06);
  color:var(--gray-400);
  transition:all var(--transition-fast);
}
.top-bar-socials a:hover{
  background:var(--color-blue);
  color:var(--color-white);
}
.top-bar-socials a svg{width:14px;height:14px}
.top-bar-right{
  display:flex;
  align-items:center;
  gap:var(--space-lg);
}
.top-bar-phone{
  display:flex;
  align-items:center;
  gap:var(--space-xs);
  color:var(--gray-400);
}
.top-bar-phone svg{width:14px;height:14px;color:var(--color-blue)}
.top-bar-phone a{color:var(--gray-300);font-weight:500}
.top-bar-phone a:hover{color:var(--color-blue)}
.top-bar-cta{
  padding:0.3rem 1rem;
  background:var(--color-blue);
  color:var(--color-white);
  font-weight:600;
  font-size:var(--font-size-xs);
  text-transform:uppercase;
  letter-spacing:0.08em;
  border-radius:var(--radius-sm);
  transition:all var(--transition-fast);
}
.top-bar-cta:hover{
  background:var(--color-blue-dark);
}

/* ===================================================================
   NAVIGATION — Floating Glass Capsule
   =================================================================== */
.navbar{
  position:fixed;
  top:calc(var(--top-bar-height) + 12px);
  left:50%;
  transform:translateX(-50%);
  width:calc(100% - 48px);
  max-width:var(--max-width);
  height:var(--nav-height);
  z-index:1000;
  background:var(--color-white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius-full);
  box-shadow:0 4px 20px rgba(0,0,0,0.06);
  transition:all 0.5s cubic-bezier(0.25,1,0.5,1);
}
.navbar.scrolled{
  top:10px;
  width:calc(100% - 32px);
  background:rgba(255,255,255,0.45);
  backdrop-filter:blur(24px) saturate(180%);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  border:1px solid rgba(255,255,255,0.6);
  box-shadow:0 12px 40px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.9);
}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.nav-logo{display:flex;align-items:center;gap:var(--space-sm);z-index:1001}
.nav-logo img{height:44px;width:auto;border-radius:var(--radius-sm)}
.nav-logo-text{font-family:var(--font-primary);font-size:var(--font-size-lg);font-weight:700;color:var(--color-black);letter-spacing:-0.02em;line-height:1.2}
.nav-logo-text span{color:var(--color-blue)}
.nav-links{display:flex;align-items:center;gap:var(--space-xl)}
.nav-link{
  font-family:var(--font-primary);
  font-size:var(--font-size-sm);
  font-weight:500;
  color:var(--gray-600);
  position:relative;
  padding:var(--space-xs) 0;
  transition:color var(--transition-base), transform var(--transition-base);
}
.nav-link::after{
  content:'';
  position:absolute;
  bottom:-4px;left:0;width:0;height:2px;
  background:var(--gradient-blue);
  border-radius:var(--radius-full);
  transition:width var(--transition-base);
}
.nav-link:hover,.nav-link.active{color:var(--color-blue);transform:translateY(-2px)}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.nav-cta{
  padding:0.625rem 1.5rem;
  font-size:var(--font-size-sm);font-weight:600;
  background:var(--gradient-blue);
  color:var(--color-white);
  border-radius:var(--radius-full);
  transition:all var(--transition-base);
  box-shadow:var(--shadow-blue);
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:var(--shadow-blue-lg)}

/* Hamburger */
.nav-hamburger{display:none;flex-direction:column;gap:5px;width:28px;cursor:pointer;z-index:1001;padding:4px 0}
.nav-hamburger span{display:block;width:100%;height:2px;background:var(--color-black);border-radius:var(--radius-full);transition:all var(--transition-base)}
.nav-hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-hamburger.active span:nth-child(2){opacity:0;transform:scaleX(0)}
.nav-hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===================================================================
   SECTION HEADERS
   =================================================================== */
.section-header{margin-bottom:var(--space-3xl)}
.section-label{
  display:inline-flex;align-items:center;gap:var(--space-sm);
  font-family:var(--font-primary);
  font-size:var(--font-size-sm);font-weight:600;
  text-transform:uppercase;letter-spacing:0.18em;
  color:var(--color-blue);margin-bottom:var(--space-md);
}

.section-title{font-family:var(--font-primary);font-size:var(--font-size-4xl);font-weight:700;color:var(--color-black);line-height:1.15;letter-spacing:-0.03em}
.section-title .highlight{color:var(--color-blue);position:relative}
.section-subtitle{font-size:var(--font-size-lg);color:var(--gray-500);max-width:640px;margin:var(--space-md) auto 0;line-height:1.8}

/* ===================================================================
   BUTTONS
   =================================================================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);
  padding:0.875rem 2rem;font-family:var(--font-primary);font-size:var(--font-size-sm);font-weight:600;letter-spacing:0.04em;
  border-radius:var(--radius-full);transition:all 0.4s cubic-bezier(0.25,1,0.5,1);position:relative;overflow:hidden;
  text-transform:uppercase;
}
.btn-primary{background:var(--gradient-blue);color:var(--color-white);box-shadow:var(--shadow-blue)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 48px rgba(62,170,255,0.35);filter:brightness(1.1)}
.btn-outline-dark{background:transparent;color:var(--color-black);border:2px solid var(--gray-300)}
.btn-outline-dark:hover{border-color:var(--color-blue);color:var(--color-blue);transform:translateY(-3px)}
.btn-outline-white{background:transparent;color:var(--color-white);border:2px solid rgba(255,255,255,0.4)}
.btn-outline-white:hover{background:rgba(255,255,255,0.1);border-color:var(--color-white);transform:translateY(-3px)}
.btn-dark{background:var(--color-black);color:var(--color-white);box-shadow:var(--shadow-md)}
.btn-dark:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);background:var(--gray-800)}
.btn-icon{width:20px;height:20px;transition:transform var(--transition-base)}
.btn:hover .btn-icon{transform:translateX(6px)}

/* ===================================================================
   PAGE HERO BANNER (inner pages)
   =================================================================== */
.page-hero{
  position:relative;
  height:340px;
  display:flex;align-items:center;justify-content:center;
  background:var(--color-black);overflow:hidden;
}
.page-hero-bg{position:absolute;inset:0}
.page-hero-bg img{width:100%;height:100%;object-fit:cover;filter:brightness(0.35)}
.page-hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,10,10,0.7) 0%,rgba(62,170,255,0.15) 100%)}
.page-hero-content{position:relative;z-index:2;text-align:center}
.page-hero-title{font-family:var(--font-primary);font-size:var(--font-size-5xl);font-weight:700;color:var(--color-white);margin-bottom:var(--space-sm);letter-spacing:-0.03em}
.breadcrumb{display:flex;align-items:center;justify-content:center;gap:var(--space-sm);font-family:var(--font-primary);font-size:var(--font-size-sm);color:rgba(255,255,255,0.6);letter-spacing:0.05em;text-transform:uppercase}
.breadcrumb a{color:var(--color-blue);font-weight:500}
.breadcrumb a:hover{color:var(--color-white)}
.breadcrumb-sep{color:rgba(255,255,255,0.3)}

/* ===================================================================
   HOME — HERO SLIDER
   =================================================================== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;background:var(--color-black)}
.hero-bg{position:absolute;inset:0;z-index:0;transform-origin:top}
.hero-bg img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;filter:brightness(0.5);opacity:0;transition:opacity 0.8s ease;visibility:hidden}
.hero-bg img.active{opacity:1;visibility:visible}
.hero-overlay{position:absolute;inset:0;background:var(--gradient-hero);z-index:1}

/* Rotating border shapes */
.hero-shapes{position:absolute;inset:0;z-index:2;overflow:hidden;pointer-events:none}
.hero-shape{position:absolute;border:1px solid rgba(62,170,255,0.15);border-radius:var(--radius-lg);animation:float 20s ease-in-out infinite}
.hero-shape:nth-child(1){width:300px;height:300px;top:10%;right:-5%;animation-delay:0s}
.hero-shape:nth-child(2){width:200px;height:200px;bottom:15%;left:-3%;animation-delay:-7s}
.hero-shape:nth-child(3){width:150px;height:150px;top:40%;right:20%;animation-delay:-14s}
@keyframes float{0%,100%{transform:rotate(0deg) translateY(0)}25%{transform:rotate(5deg) translateY(-20px)}50%{transform:rotate(-3deg) translateY(10px)}75%{transform:rotate(2deg) translateY(-10px)}}

/* ---- Glowing Gradient Orbs ---- */
.hero-orbs{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:hidden}
.hero-orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:0.4;animation:orbPulse 8s ease-in-out infinite alternate}
.hero-orb-1{width:500px;height:500px;background:radial-gradient(circle,rgba(62,170,255,0.6) 0%,transparent 70%);top:-10%;right:-5%;animation-delay:0s}
.hero-orb-2{width:400px;height:400px;background:radial-gradient(circle,rgba(30,140,230,0.5) 0%,transparent 70%);bottom:-15%;left:10%;animation-delay:-3s}
.hero-orb-3{width:300px;height:300px;background:radial-gradient(circle,rgba(120,200,255,0.4) 0%,transparent 70%);top:30%;left:50%;animation-delay:-6s}
@keyframes orbPulse{
  0%{transform:scale(1) translate(0,0);opacity:0.3}
  50%{transform:scale(1.2) translate(20px,-15px);opacity:0.5}
  100%{transform:scale(0.9) translate(-10px,10px);opacity:0.35}
}

/* ---- Floating Engineering Icons ---- */
.hero-floaters{position:absolute;inset:0;z-index:3;pointer-events:none;overflow:hidden}
.hero-floater{
  position:absolute;
  color:rgba(62,170,255,0.25);
  animation:floaterDrift 15s ease-in-out infinite;
  will-change:transform;
}
.hero-floater svg{width:100%;height:100%;filter:drop-shadow(0 0 8px rgba(62,170,255,0.3))}
.hero-floater-1{width:48px;height:48px;top:15%;right:12%;animation-delay:0s;animation-duration:14s}
.hero-floater-2{width:56px;height:56px;top:60%;right:8%;animation-delay:-3s;animation-duration:18s}
.hero-floater-3{width:40px;height:40px;top:25%;left:8%;animation-delay:-5s;animation-duration:16s}
.hero-floater-4{width:52px;height:52px;bottom:20%;left:15%;animation-delay:-8s;animation-duration:20s}
.hero-floater-5{width:36px;height:36px;top:45%;right:25%;animation-delay:-11s;animation-duration:12s}
@keyframes floaterDrift{
  0%,100%{transform:translateY(0) rotate(0deg) scale(1)}
  25%{transform:translateY(-30px) rotate(15deg) scale(1.1)}
  50%{transform:translateY(10px) rotate(-10deg) scale(0.95)}
  75%{transform:translateY(-20px) rotate(8deg) scale(1.05)}
}

/* ---- Particle Canvas ---- */
.hero-particles{position:absolute;inset:0;z-index:2;pointer-events:none}

/* ---- Hero Content ---- */
.hero-container{position:relative;z-index:4;width:100%;padding:var(--space-6xl) 0;margin-top:120px}
.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:var(--space-3xl);align-items:center}
.hero-content{max-width:720px}
.hero-portrait{position:relative;display:flex;justify-content:flex-end;animation:portraitFloat 8s ease-in-out infinite;will-change:transform}
.hero-portrait-img{display:none;width:100%;max-width:480px;filter:drop-shadow(0 0 60px rgba(62,170,255,0.25));object-fit:cover;animation:portraitFadeIn 0.8s ease forwards}
.hero-portrait-img.active{display:block}
@keyframes portraitFadeIn{from{opacity:0;transform:scale(0.95)}to{opacity:1;transform:scale(1)}}
@keyframes portraitFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-15px)}}
.hero-slide{display:none;animation:fadeSlide 0.8s ease forwards}
.hero-slide.active{display:block}
@keyframes fadeSlide{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.hero-eyebrow{font-family:var(--font-primary);font-size:var(--font-size-sm);font-weight:600;text-transform:uppercase;letter-spacing:0.2em;color:var(--color-blue);margin-bottom:var(--space-md);display:flex;align-items:center;gap:var(--space-sm)}
.hero-eyebrow::before{content:'';display:inline-block;width:40px;height:2px;background:var(--color-blue)}
.hero-eyebrow-img{height:80px;width:auto;margin-bottom:var(--space-md);filter:drop-shadow(0 4px 12px rgba(0,0,0,0.3));animation:badgeFloat 4s ease-in-out infinite}
@keyframes badgeFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.hero-title{font-family:var(--font-primary);font-size:var(--font-size-6xl);font-weight:700;color:var(--color-white);line-height:1.05;letter-spacing:-0.04em;margin-bottom:var(--space-xl)}
.hero-title .accent{background:var(--gradient-blue);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-description{font-size:var(--font-size-lg);color:rgba(255,255,255,0.7);line-height:1.8;margin-bottom:var(--space-2xl);max-width:560px}
.hero-buttons{display:flex;gap:var(--space-md);flex-wrap:wrap}
.hero-dots{position:absolute;bottom:3rem;left:50%;transform:translateX(-50%);z-index:5;display:flex;gap:var(--space-sm)}
.hero-dot{width:12px;height:3px;border-radius:var(--radius-full);background:rgba(255,255,255,0.3);cursor:pointer;transition:all var(--transition-base)}
.hero-dot.active{width:32px;background:var(--color-blue)}

/* ===================================================================
   HOME — WELCOME
   =================================================================== */
.welcome{background:rgba(255,255,255,0.5)}
.welcome-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4xl);align-items:center}
.welcome-image{border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-xl)}
.welcome-image img{width:100%;height:420px;object-fit:cover;transition:transform var(--transition-slow)}
.welcome-image:hover img{transform:scale(1.03)}
.welcome-text p{font-size:var(--font-size-base);color:var(--gray-600);line-height:1.8;margin-bottom:var(--space-lg)}

/* ===================================================================
   HOME — PROCESS STEPS
   =================================================================== */
.process{background:var(--gray-50)}
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-xl)}
.process-card{
  text-align:center;
  padding:var(--space-2xl);
  background:var(--color-white);
  border-radius:var(--radius-xl);
  border:1px solid var(--gray-200);
  transition:all 0.5s cubic-bezier(0.25,1,0.5,1);
  position:relative;
}
.process-card:hover{transform:translateY(-8px) scale(1.02);box-shadow:0 20px 50px rgba(0,0,0,0.08);border-color:rgba(62,170,255,0.25)}
.process-number{
  width:56px;height:56px;margin:0 auto var(--space-lg);
  display:flex;align-items:center;justify-content:center;
  background:var(--gradient-blue);color:var(--color-white);
  font-family:var(--font-primary);
  font-size:var(--font-size-xl);font-weight:700;
  border-radius:var(--radius-lg);
}
.process-card h3{font-size:var(--font-size-xl);font-weight:700;color:var(--color-black);margin-bottom:var(--space-sm)}
.process-card p{font-size:var(--font-size-sm);color:var(--gray-500);line-height:1.7}
.process-connector{display:none}

/* ===================================================================
   HOME — SERVICES OVERVIEW (4 cards)
   =================================================================== */
.services-overview{background:var(--gray-900)}
.services-overview .section-title, .services-overview .section-subtitle{color:var(--color-white)}
.services-overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-xl)}
.service-overview-card{
  position:relative;
  height:400px;
  border-radius:var(--radius-xl);
  overflow:hidden;
  text-align:left;
  box-shadow:0 10px 30px rgba(0,0,0,0.3);
  transition:all 0.6s cubic-bezier(0.25,1,0.5,1);
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:var(--space-xl);
  cursor:pointer;
}
.service-overview-card::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top, rgba(10,10,10,0.95) 0%, rgba(10,10,10,0.2) 60%, transparent 100%);
  z-index:1;
  transition:opacity 0.6s ease;
}
.service-overview-card-bg{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  z-index:0;
  transition:transform 1.2s cubic-bezier(0.25,1,0.5,1);
}
.service-overview-card:hover{
  transform:translateY(-10px);
  box-shadow:0 20px 50px rgba(62,170,255,0.2);
}
.service-overview-card:hover .service-overview-card-bg{
  transform:scale(1.1);
}
.service-overview-card-content{
  position:relative;z-index:2;
}
.service-overview-card h3{
  font-size:var(--font-size-2xl);font-weight:700;color:var(--color-white);
  margin-bottom:var(--space-sm);
}
.service-overview-card p{
  font-size:var(--font-size-sm);color:var(--gray-300);
  line-height:1.7;margin-bottom:var(--space-lg);
  opacity:0.8;transition:opacity 0.4s ease;
}
.service-overview-card:hover p{opacity:1;}
.service-overview-card .card-link{
  font-family:var(--font-primary);font-size:var(--font-size-sm);font-weight:600;
  color:var(--color-blue);display:inline-flex;align-items:center;gap:var(--space-xs);
  letter-spacing:0.05em;text-transform:uppercase;
}
.service-overview-card .card-link svg{width:16px;height:16px;transition:transform var(--transition-base)}
.service-overview-card:hover .card-link svg{transform:translateX(6px)}

/* ===================================================================
   FEATURED PROJECT (homepage)
   =================================================================== */
.featured-project{background:var(--gray-900);position:relative;overflow:hidden}
.featured-project::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:800px;height:400px;background:radial-gradient(ellipse,rgba(62,170,255,0.08) 0%,transparent 70%);pointer-events:none}
.featured-project .section-title{color:var(--color-white)}
.featured-project .section-subtitle{color:var(--gray-400)}
.featured-project-card{
  display:grid;grid-template-columns:1.2fr 1fr;gap:0;
  background:rgba(255,255,255,0.04);border-radius:var(--radius-xl);overflow:hidden;
  border:1px solid rgba(255,255,255,0.08);
}
.featured-project-img{position:relative;min-height:400px;overflow:hidden}
.featured-project-img img{width:100%;height:100%;object-fit:cover}
.featured-project-body{padding:var(--space-3xl);display:flex;flex-direction:column;justify-content:center}
.featured-project-tag{display:inline-block;padding:0.25rem 0.75rem;background:rgba(62,170,255,0.15);color:var(--color-blue);font-size:var(--font-size-xs);font-weight:600;border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:0.06em;margin-bottom:var(--space-md);width:fit-content}
.featured-project-body h3{font-size:var(--font-size-2xl);font-weight:700;color:var(--color-white);margin-bottom:var(--space-md);line-height:1.3}
.featured-project-body p{font-size:var(--font-size-sm);color:var(--gray-400);line-height:1.8;margin-bottom:var(--space-xl)}

/* ===================================================================
   STATS
   =================================================================== */
.stats{background:rgba(255,255,255,0.5);position:relative}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-xl)}
.stat-card{
  text-align:center;padding:var(--space-2xl) var(--space-lg);
  border-radius:var(--radius-xl);background:var(--gradient-card);
  border:1px solid var(--gray-200);transition:all var(--transition-base);
  position:relative;overflow:hidden;
}
.stat-card::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:60%;height:3px;background:var(--gradient-blue);border-radius:0 0 var(--radius-full) var(--radius-full);opacity:0;transition:opacity var(--transition-base)}
.stat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(62,170,255,0.2)}
.stat-card:hover::before{opacity:1}
.stat-icon{width:56px;height:56px;border-radius:var(--radius-lg);background:var(--color-blue-light);display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-lg)}
.stat-icon svg{width:28px;height:28px;color:var(--color-blue)}
.stat-number{font-size:var(--font-size-4xl);font-weight:900;color:var(--color-black);line-height:1;margin-bottom:var(--space-xs)}
.stat-label{font-size:var(--font-size-sm);color:var(--gray-500);font-weight:500}

/* ===================================================================
   COMPANY PROFILE DOWNLOAD
   =================================================================== */
.profile-download{
  background:var(--gradient-dark);
  position:relative;overflow:hidden;
}
.profile-download::after{
  content:'';position:absolute;top:-50%;right:-10%;width:500px;height:500px;
  background:radial-gradient(circle,rgba(62,170,255,0.12) 0%,transparent 70%);pointer-events:none;
}
.profile-download-inner{
  display:flex;align-items:center;justify-content:space-between;gap:var(--space-3xl);
  position:relative;z-index:1;
}
.profile-download-content{max-width:640px}
.profile-download-content h2{font-size:var(--font-size-3xl);font-weight:800;color:var(--color-white);margin-bottom:var(--space-md)}
.profile-download-content p{font-size:var(--font-size-base);color:var(--gray-400);line-height:1.8;margin-bottom:var(--space-xl)}
.btn-download{
  display:inline-flex;align-items:center;gap:var(--space-sm);
  padding:1rem 2rem;background:var(--color-blue);color:var(--color-white);
  font-size:var(--font-size-sm);font-weight:700;border-radius:var(--radius-full);
  transition:all var(--transition-base);box-shadow:var(--shadow-blue);
  text-transform:uppercase;letter-spacing:0.04em;
}
.btn-download:hover{transform:translateY(-3px);box-shadow:var(--shadow-blue-lg);background:var(--color-blue-dark)}
.btn-download svg{width:20px;height:20px}

/* ===================================================================
   CLIENTS MARQUEE
   =================================================================== */
.clients{background:var(--gray-50);padding:var(--space-3xl) 0;overflow:hidden}
.clients-title{text-align:center;font-size:var(--font-size-sm);font-weight:600;text-transform:uppercase;letter-spacing:0.12em;color:var(--gray-400);margin-bottom:var(--space-2xl)}
.clients-track{display:flex;gap:var(--space-3xl);overflow:hidden}
.clients-track-inner{display:flex;gap:var(--space-3xl);align-items:center;flex-shrink:0;animation:marquee 40s linear infinite}
.client-logo{height:60px;width:auto;max-width:180px;object-fit:contain;filter:grayscale(100%) opacity(0.6);transition:transform 0.3s ease, filter 0.3s ease;cursor:pointer}
.client-logo:hover{filter:grayscale(0%) opacity(1);transform:scale(1.05)}
@keyframes marquee{0%{transform:translateX(0)}100%{transform:translateX(calc(-100% - var(--space-3xl)))}}

/* ===================================================================
   ABOUT — TEAM
   =================================================================== */
.team{background:var(--gray-50)}
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-xl)}
.team-card{
  text-align:center;background:var(--color-white);
  border-radius:var(--radius-xl);overflow:hidden;
  border:1px solid var(--gray-200);transition:all var(--transition-base);
}
.team-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(62,170,255,0.2)}
.team-card-image{height:280px;overflow:hidden}
.team-card-image img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform var(--transition-slow)}
.team-card:hover .team-card-image img{transform:scale(1.05)}
.team-card-body{padding:var(--space-lg)}
.team-card-body h3{font-size:var(--font-size-lg);font-weight:700;color:var(--color-black);margin-bottom:var(--space-xs)}
.team-card-body p{font-size:var(--font-size-sm);color:var(--color-blue);font-weight:500}

/* ===================================================================
   ABOUT — VALUES
   =================================================================== */
.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-xl)}
.value-card{
  padding:var(--space-2xl);background:var(--color-white);
  border-radius:var(--radius-xl);border:1px solid var(--gray-200);
  transition:all var(--transition-base);text-align:center;
}
.value-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(62,170,255,0.2)}
.value-icon{
  width:64px;height:64px;border-radius:var(--radius-lg);
  background:var(--color-blue-light);display:flex;align-items:center;justify-content:center;
  margin:0 auto var(--space-lg);
}
.value-icon svg{width:28px;height:28px;color:var(--color-blue)}
.value-card h3{font-size:var(--font-size-lg);font-weight:700;color:var(--color-black);margin-bottom:var(--space-sm)}
.value-card p{font-size:var(--font-size-sm);color:var(--gray-500);line-height:1.7}

/* ===================================================================
   ABOUT — ACCREDITATIONS
   =================================================================== */
.accreditations{background:rgba(255,255,255,0.4)}
.accred-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-xl)}
.accred-card{
  display:flex;align-items:center;gap:var(--space-lg);
  padding:var(--space-xl);background:var(--gray-50);
  border-radius:var(--radius-xl);border:1px solid var(--gray-200);
  transition:all var(--transition-base);
}
.accred-card:hover{border-color:rgba(62,170,255,0.3);box-shadow:var(--shadow-md)}
.accred-icon{
  width:56px;height:56px;border-radius:var(--radius-lg);flex-shrink:0;
  background:var(--gradient-blue);display:flex;align-items:center;justify-content:center;
}
.accred-icon svg{width:28px;height:28px;color:var(--color-white)}
.accred-text h4{font-size:var(--font-size-base);font-weight:700;color:var(--color-black);margin-bottom:var(--space-xs)}
.accred-text p{font-size:var(--font-size-sm);color:var(--gray-500)}

/* ===================================================================
   SERVICES PAGE — DETAIL SECTIONS (Zeus-Inspired)
   =================================================================== */
.service-detail{position:relative;overflow:hidden}
.service-detail:nth-child(even){background:var(--gray-50)}
.service-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4xl);align-items:center}
.service-detail:nth-child(even) .service-detail-grid{direction:rtl}
.service-detail:nth-child(even) .service-detail-grid > *{direction:ltr}
.service-detail-image{
  border-radius:var(--radius-xl);overflow:hidden;
  position:relative;
  box-shadow:0 20px 60px rgba(0,0,0,0.15);
}
.service-detail-image::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(10,10,10,0.4) 100%);
  opacity:0;transition:opacity 0.6s ease;pointer-events:none;
  border-radius:var(--radius-xl);
}
.service-detail-image:hover::after{opacity:1}
.service-detail-image img{
  width:100%;height:420px;object-fit:cover;
  transition:transform 1.2s cubic-bezier(0.25,1,0.5,1), filter 0.6s ease;
}
.service-detail-image:hover img{transform:scale(1.08);filter:brightness(1.05)}
.service-detail-content{position:relative}
.service-detail-content::before{
  content:attr(data-number);
  position:absolute;top:-20px;left:-10px;
  font-size:8rem;font-weight:900;
  color:rgba(62,170,255,0.06);line-height:1;
  pointer-events:none;
}
.service-detail-content h3{
  font-size:var(--font-size-3xl);font-weight:800;
  color:var(--color-black);margin-bottom:var(--space-lg);
  line-height:1.2;letter-spacing:-0.02em;
}
.service-detail-content p{
  font-size:var(--font-size-lg);color:var(--gray-600);
  line-height:1.8;margin-bottom:var(--space-2xl);
}
.service-detail-list{display:flex;flex-direction:column;gap:var(--space-md)}
.service-detail-list li{
  display:flex;align-items:center;gap:var(--space-md);
  font-size:var(--font-size-base);font-weight:500;color:var(--gray-700);
  padding:var(--space-md) var(--space-lg);
  background:var(--color-white);border-radius:var(--radius-lg);
  border:1px solid var(--gray-200);
  transition:all 0.5s cubic-bezier(0.25,1,0.5,1);
  box-shadow:0 2px 8px rgba(0,0,0,0.04);
}
.service-detail-list li:hover{
  transform:translateX(8px);
  border-color:rgba(62,170,255,0.3);
  box-shadow:0 8px 24px rgba(62,170,255,0.1);
}
.service-detail-list li svg{
  width:22px;height:22px;color:var(--color-white);flex-shrink:0;
  background:var(--gradient-blue);border-radius:50%;
  padding:4px;
}

/* ===================================================================
   SERVICES PAGE — CTA
   =================================================================== */
.services-cta{background:var(--gradient-dark);text-align:center;position:relative;overflow:hidden}
.services-cta::after{content:'';position:absolute;bottom:-40%;left:50%;transform:translateX(-50%);width:600px;height:600px;background:radial-gradient(circle,rgba(62,170,255,0.1) 0%,transparent 70%);pointer-events:none}
.services-cta h2{font-size:var(--font-size-3xl);font-weight:800;color:var(--color-white);margin-bottom:var(--space-md);position:relative;z-index:1}
.services-cta p{font-size:var(--font-size-lg);color:var(--gray-400);margin-bottom:var(--space-2xl);position:relative;z-index:1}

/* ===================================================================
   PROJECTS — FILTER TABS
   =================================================================== */
.filter-tabs{display:flex;align-items:center;justify-content:center;gap:var(--space-sm);margin-bottom:var(--space-3xl);flex-wrap:wrap}
.filter-tab{
  padding:0.6rem 1.5rem;font-size:var(--font-size-sm);font-weight:600;
  border-radius:var(--radius-full);border:2px solid var(--gray-200);
  color:var(--gray-500);background:var(--color-white);transition:all var(--transition-base);
  cursor:pointer;
}
.filter-tab:hover{border-color:var(--color-blue);color:var(--color-blue)}
.filter-tab.active{background:var(--gradient-blue);border-color:transparent;color:var(--color-white);box-shadow:var(--shadow-blue)}

/* ===================================================================
   PROJECTS — CARDS
   =================================================================== */
.projects-list{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-xl)}
.project-card{
  background:rgba(255,255,255,0.55);border-radius:var(--radius-xl);overflow:hidden;
  backdrop-filter:blur(16px) saturate(160%);-webkit-backdrop-filter:blur(16px) saturate(160%);
  border:1px solid rgba(255,255,255,0.6);transition:all 0.6s cubic-bezier(0.25,1,0.5,1);
  box-shadow:0 4px 24px rgba(0,0,0,0.04), inset 0 1px 0 rgba(255,255,255,0.8);
}
.project-card:hover{transform:translateY(-10px);box-shadow:0 16px 40px rgba(62,170,255,0.12), inset 0 1px 0 rgba(255,255,255,0.9);background:rgba(255,255,255,0.75)}
.project-card-img-wrap{position:relative;width:100%;height:240px;overflow:hidden}
.project-card-img{width:100%;height:100%;object-fit:cover;transition:transform 0.8s cubic-bezier(0.25,1,0.5,1)}
.project-card:hover .project-card-img{transform:scale(1.08)}
.project-card-body{padding:var(--space-xl)}
.project-card-status{
  display:inline-block;padding:0.2rem 0.7rem;
  font-size:var(--font-size-xs);font-weight:600;
  border-radius:var(--radius-full);margin-bottom:var(--space-sm);
  text-transform:uppercase;letter-spacing:0.06em;
}
.project-card-status.ongoing{background:rgba(62,170,255,0.12);color:var(--color-blue)}
.project-card-status.completed{background:rgba(16,185,129,0.12);color:#10b981}
.project-card h3{font-size:var(--font-size-lg);font-weight:700;color:var(--color-black);margin-bottom:var(--space-sm);line-height:1.3}
.project-card p{font-size:var(--font-size-sm);color:var(--gray-500);line-height:1.7;margin-bottom:var(--space-md)}
.project-card-client{
  display:flex;align-items:center;gap:var(--space-sm);
  font-size:var(--font-size-xs);color:var(--gray-400);
  padding-top:var(--space-md);border-top:1px solid var(--gray-200);
}
.project-card-client svg{width:14px;height:14px;color:var(--color-blue)}
.project-card.hidden{display:none}

/* ===================================================================
   CONTACT PAGE
   =================================================================== */
.contact-section{background:rgba(255,255,255,0.4)}
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:var(--space-4xl)}
.contact-info{padding:var(--space-xl) 0}
.contact-intro{font-size:var(--font-size-base);color:var(--gray-500);margin-bottom:var(--space-2xl);line-height:1.8}
.contact-details{display:flex;flex-direction:column;gap:var(--space-lg);margin-bottom:var(--space-2xl)}
.contact-detail{display:flex;align-items:flex-start;gap:var(--space-md)}
.contact-detail-icon{
  width:48px;height:48px;border-radius:var(--radius-lg);
  background:var(--color-blue-light);display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.contact-detail-icon svg{width:22px;height:22px;color:var(--color-blue)}
.contact-detail-content{display:flex;flex-direction:column}
.contact-detail-label{font-size:var(--font-size-xs);font-weight:600;text-transform:uppercase;letter-spacing:0.08em;color:var(--gray-400);margin-bottom:var(--space-xs)}
.contact-detail-value{font-size:var(--font-size-base);font-weight:500;color:var(--gray-800);line-height:1.5}
.contact-detail-value a{color:var(--gray-800);transition:color var(--transition-fast)}
.contact-detail-value a:hover{color:var(--color-blue)}
.contact-socials{display:flex;gap:var(--space-sm)}
.contact-social{
  width:44px;height:44px;border-radius:var(--radius-md);background:var(--gray-100);
  display:flex;align-items:center;justify-content:center;transition:all var(--transition-base);
}
.contact-social svg{width:20px;height:20px;color:var(--gray-500);transition:color var(--transition-fast)}
.contact-social:hover{background:var(--color-blue);transform:translateY(-3px);box-shadow:var(--shadow-blue)}
.contact-social:hover svg{color:var(--color-white)}

/* Contact Form */
.contact-form-wrapper{background:var(--gray-50);border-radius:var(--radius-xl);padding:var(--space-2xl);border:1px solid var(--gray-200)}
.contact-form{display:flex;flex-direction:column;gap:var(--space-lg)}
.form-group{display:flex;flex-direction:column;gap:var(--space-xs)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-lg)}
.form-label{font-size:var(--font-size-sm);font-weight:600;color:var(--gray-700)}
.form-input,.form-textarea,.form-select{
  width:100%;padding:0.875rem 1rem;font-size:var(--font-size-sm);font-family:var(--font-primary);
  color:var(--gray-800);background:var(--color-white);border:1.5px solid var(--gray-300);
  border-radius:var(--radius-md);transition:all var(--transition-fast);outline:none;
}
.form-input:focus,.form-textarea:focus,.form-select:focus{border-color:var(--color-blue);box-shadow:0 0 0 3px rgba(62,170,255,0.15)}
.form-input::placeholder,.form-textarea::placeholder{color:var(--gray-400)}
.form-textarea{resize:vertical;min-height:140px}
.form-submit{align-self:flex-start}
.form-success{
  display:none;align-items:center;gap:var(--space-sm);
  padding:var(--space-md) var(--space-lg);background:rgba(62,170,255,0.1);
  border:1px solid rgba(62,170,255,0.3);border-radius:var(--radius-md);
  font-size:var(--font-size-sm);font-weight:500;color:var(--color-blue-dark);
}
.form-success.visible{display:flex}

/* Map */
.contact-map{margin-top:var(--space-3xl);border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg)}
.contact-map iframe{width:100%;height:400px;border:0}

/* ===================================================================
   BLOG — PLACEHOLDER
   =================================================================== */
.blog-coming-soon{background:rgba(255,255,255,0.4);text-align:center}
.blog-placeholder-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-xl);margin-bottom:var(--space-3xl)}
.blog-placeholder-card{
  border-radius:var(--radius-xl);overflow:hidden;
  border:1px solid var(--gray-200);transition:all var(--transition-base);
  opacity:0.6;
}
.blog-placeholder-card:hover{opacity:1;box-shadow:var(--shadow-md)}
.blog-placeholder-thumb{height:180px;background:var(--gray-100);display:flex;align-items:center;justify-content:center}
.blog-placeholder-thumb svg{width:48px;height:48px;color:var(--gray-300)}
.blog-placeholder-body{padding:var(--space-lg)}
.blog-placeholder-body h3{font-size:var(--font-size-base);font-weight:700;color:var(--gray-700);margin-bottom:var(--space-sm)}
.blog-placeholder-body p{font-size:var(--font-size-sm);color:var(--gray-400)}
.blog-subscribe{max-width:480px;margin:0 auto}
.blog-subscribe-form{display:flex;gap:var(--space-sm)}
.blog-subscribe-form input{flex:1;padding:0.875rem 1rem;border:1.5px solid var(--gray-300);border-radius:var(--radius-full);font-size:var(--font-size-sm);font-family:var(--font-primary);outline:none}
.blog-subscribe-form input:focus{border-color:var(--color-blue);box-shadow:0 0 0 3px rgba(62,170,255,0.15)}
.coming-soon-badge{
  display:inline-flex;align-items:center;gap:var(--space-sm);
  padding:0.5rem 1.25rem;background:rgba(62,170,255,0.1);border:1px solid rgba(62,170,255,0.25);
  border-radius:var(--radius-full);font-size:var(--font-size-sm);font-weight:600;color:var(--color-blue);
  margin-bottom:var(--space-xl);
}

/* ---------- LIGHTBOX ---------- */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,0.9);z-index:9999;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity 0.3s ease}
.lightbox.active{opacity:1;pointer-events:auto}
.lightbox img{max-width:90%;max-height:90vh;object-fit:contain;border-radius:var(--radius-md);box-shadow:0 10px 30px rgba(0,0,0,0.5);transform:scale(0.95);transition:transform 0.3s ease}
.lightbox.active img{transform:scale(1)}
.lightbox-close{position:absolute;top:20px;right:20px;background:rgba(255,255,255,0.1);border:none;color:#fff;width:44px;height:44px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background 0.2s}
.lightbox-close:hover{background:rgba(255,255,255,0.2)}
.gallery-img{cursor:pointer;transition:transform 0.6s cubic-bezier(0.25,1,0.5,1),filter 0.6s ease}
.gallery-img:hover{transform:translateY(-8px) scale(1.02);filter:brightness(1.1);box-shadow:0 15px 30px rgba(0,0,0,0.1)}



/* ===================================================================
   FOOTER
   =================================================================== */
.footer{background:var(--gray-900);color:var(--gray-400);padding:var(--space-4xl) 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:var(--space-3xl);padding-bottom:var(--space-3xl);border-bottom:1px solid rgba(255,255,255,0.08)}
.footer-brand{max-width:340px}
.footer-logo{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-lg)}
.footer-logo img{height:40px;width:auto;border-radius:var(--radius-sm)}
.footer-logo-text{font-family:var(--font-primary);font-size:var(--font-size-lg);font-weight:700;color:var(--color-white)}
.footer-logo-text span{color:var(--color-blue)}
.footer-brand-text{font-size:var(--font-size-sm);line-height:1.8;margin-bottom:var(--space-lg)}
.footer-col-title{font-family:var(--font-primary);font-size:var(--font-size-sm);font-weight:700;color:var(--color-white);text-transform:uppercase;letter-spacing:0.12em;margin-bottom:var(--space-lg)}
.footer-links{display:flex;flex-direction:column;gap:var(--space-sm)}
.footer-link{font-size:var(--font-size-sm);color:var(--gray-400);transition:all 0.4s cubic-bezier(0.25,1,0.5,1);padding:var(--space-xs) 0}
.footer-link:hover{color:var(--color-blue);transform:translateX(6px)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;padding:var(--space-xl) 0;font-size:var(--font-size-xs);color:var(--gray-500)}

/* ===================================================================
   SCROLL ANIMATIONS
   =================================================================== */
.reveal{opacity:0;transform:translateY(50px);transition:all 1s cubic-bezier(0.16,1,0.3,1)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-left{opacity:0;transform:translateX(-60px);transition:all 1s cubic-bezier(0.16,1,0.3,1)}
.reveal-left.visible{opacity:1;transform:translateX(0)}
.reveal-right{opacity:0;transform:translateX(60px);transition:all 1s cubic-bezier(0.16,1,0.3,1)}
.reveal-right.visible{opacity:1;transform:translateX(0)}
.stagger-children .reveal{transition-delay:calc(var(--stagger-index, 0) * 100ms)}

/* ===================================================================
   BACK TO TOP
   =================================================================== */
.back-to-top{
  position:fixed;bottom:2rem;right:2rem;width:48px;height:48px;
  border-radius:var(--radius-full);background:var(--gradient-blue);color:var(--color-white);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-blue);z-index:999;
  opacity:0;visibility:hidden;transform:translateY(20px);
  transition:all var(--transition-base);cursor:pointer;border:none;
}
.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{transform:translateY(-4px);box-shadow:var(--shadow-blue-lg)}
.back-to-top svg{width:22px;height:22px}

/* ===================================================================
   PRELOADER
   =================================================================== */
.preloader{position:fixed;inset:0;background:var(--color-black);display:flex;align-items:center;justify-content:center;z-index:10000;transition:opacity 0.8s ease,visibility 0.8s ease}
.preloader.hidden{opacity:0;visibility:hidden}
.preloader-content{text-align:center}
.preloader-logo{font-family:var(--font-primary);font-size:var(--font-size-3xl);font-weight:700;color:var(--color-white);margin-bottom:var(--space-lg);letter-spacing:-0.02em}
.preloader-logo span{color:var(--color-blue)}
.preloader-bar{width:240px;height:2px;background:var(--gray-800);border-radius:var(--radius-full);overflow:hidden;margin:0 auto}
.preloader-bar-fill{width:0;height:100%;background:var(--gradient-blue);border-radius:var(--radius-full);animation:preloader-fill 1.5s ease-out forwards}
@keyframes preloader-fill{0%{width:0}50%{width:70%}100%{width:100%}}
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media(max-width:1024px){
  :root{--font-size-6xl:3.5rem;--font-size-5xl:2.5rem;--font-size-4xl:2rem}
  .services-overview-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .values-grid{grid-template-columns:repeat(2,1fr)}
  .accred-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
  .footer-grid > *:last-child{grid-column:1 / -1}
  .featured-project-card{grid-template-columns:1fr}
  .featured-project-img{min-height:300px}
  .service-detail-grid{grid-template-columns:1fr}
  .service-detail:nth-child(even) .service-detail-grid{direction:ltr}
  .hero-grid{grid-template-columns:1fr}
  .hero-portrait{display:none!important}
}
@media(max-width:768px){
  :root{--nav-height:70px;--font-size-6xl:2.5rem;--font-size-5xl:2rem;--font-size-4xl:1.75rem;--font-size-3xl:1.5rem}
  .container{padding:0 var(--space-md)}
  .section-padding{padding:var(--space-3xl) 0}
  .top-bar{display:none}
  .nav-hamburger{display:flex}
  .nav-links{
    position:fixed;top:0;left:0;width:100%;height:100vh;
    background:rgba(10,10,10,0.98);backdrop-filter:blur(20px);
    flex-direction:column;justify-content:center;gap:var(--space-xl);
    opacity:0;visibility:hidden;transition:all var(--transition-base);
  }
  .nav-links.active{opacity:1;visibility:visible}
  .nav-links .nav-link{font-size:var(--font-size-xl);color:var(--color-white)}
  .nav-links .nav-link:hover,.nav-links .nav-link.active{color:var(--color-blue)}
  .nav-hamburger.active span{background:var(--color-white)!important}
  .nav-logo.menu-open .nav-logo-text{color:var(--color-white)}
  .welcome-grid{grid-template-columns:1fr;gap:var(--space-2xl)}
  .process-grid{grid-template-columns:1fr}
  .services-overview-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .projects-list{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr 1fr}
  .values-grid{grid-template-columns:1fr}
  .accred-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:var(--space-xl)}
  .footer-bottom{flex-direction:column;gap:var(--space-md);text-align:center}
  .hero-content{text-align:center;display:flex;flex-direction:column;align-items:center}
  .hero-slide{text-align:center}
  .hero-slide.active{display:flex;flex-direction:column;align-items:center}
  .hero-eyebrow-img{margin-left:auto;margin-right:auto}
  .hero-eyebrow{justify-content:center}
  .hero-buttons{flex-direction:column;width:100%}
  .hero-buttons .btn{width:100%}
  .page-hero{height:260px}
  .page-hero-title{font-size:var(--font-size-4xl)}
  .profile-download-inner{flex-direction:column;text-align:center}
  .blog-placeholder-grid{grid-template-columns:1fr}
  .blog-subscribe-form{flex-direction:column}
  .service-detail-grid{grid-template-columns:1fr}
  .service-detail:nth-child(even) .service-detail-grid{direction:ltr}
  
  /* Global Centering on Mobile */
  .section-header, .welcome-content, .about-content-wrapper, .service-detail-content, .contact-info, .page-hero-content, .featured-project-content, .process-step {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .section-label, .contact-details {
    justify-content: center;
  }
  .welcome-buttons, .featured-project-links {
    justify-content: center;
  }
}
@media(max-width:480px){
  :root{--font-size-6xl:2rem;--font-size-5xl:1.75rem;--font-size-4xl:1.5rem}
  .stats-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
}

/* ---------- Performance: Reduce motion for accessibility ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .hero-shape, .hero-orb, .hero-floater, .hero-particles {
    display: none !important;
  }
  .clients-track-inner {
    animation: none !important;
  }
}

/* ---------- Performance: Content-visibility for below-fold sections ---------- */
.process, .services-overview, .featured-project, .stats, .profile-download, .clients, .accreditations {
  content-visibility: auto;
  contain-intrinsic-size: auto 600px;
}

/* ---------- Performance: GPU hints for animated elements ---------- */
.hero-bg-img, .hero-portrait-img, .hero-slide {
  will-change: opacity;
}
.clients-track-inner {
  will-change: transform;
}

/* ---------- Image optimization: aspect-ratio hints ---------- */
.team-card-image img {
  aspect-ratio: 300 / 280;
  object-fit: cover;
}
.client-logo {
  aspect-ratio: auto;
  height: 60px;
  width: auto;
}
.service-overview-card-bg {
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

/* ---------- Fieldwork Highlights Section ---------- */
.fieldwork-highlights {
  background: var(--gray-50);
}
.fieldwork-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}
@media (min-width: 992px) {
  .fieldwork-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}
.fieldwork-video-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  background: #000;
  aspect-ratio: 16 / 9;
}
.fieldwork-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.fieldwork-masonry {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-md);
  grid-auto-flow: dense;
}
.fieldwork-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  aspect-ratio: 4 / 3;
}
.fieldwork-img:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

@media (min-width: 576px) {
  .fieldwork-masonry .fieldwork-img:nth-child(1) {
    grid-column: span 2;
    grid-row: span 2;
    aspect-ratio: auto;
  }
}

/* ---------- Lightbox / Image Popup ---------- */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
  cursor: zoom-out;
  padding: var(--space-xl);
}
.lightbox-overlay.active {
  opacity: 1;
  visibility: visible;
}
.lightbox-img {
  max-width: 92vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  transform: scale(0.85);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.lightbox-overlay.active .lightbox-img {
  transform: scale(1);
}
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease, transform 0.25s ease;
  z-index: 10001;
}
.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: rotate(90deg) scale(1.1);
}

/* Make gallery & fieldwork images show pointer cursor */
.fieldwork-img,
.gallery-img {
  cursor: zoom-in;
}

/* Lightbox navigation arrows */
.lightbox-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease, transform 0.25s ease;
  z-index: 10001;
}
.lightbox-arrow svg {
  width: 24px;
  height: 24px;
}
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }
.lightbox-arrow:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-50%) scale(1.12);
}

/* Lightbox counter */
.lightbox-counter {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  padding: 6px 16px;
  border-radius: 20px;
  z-index: 10001;
}