/* ===== RESET & VARIABLES ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:90px}

:root{
  --navy:#0A1628;
  --navy-deep:#050E1C;
  --navy-light:#1E293B;
  --cyan:#06B6D4;
  --cyan-light:#22D3EE;
  --cyan-deep:#0891B2;
  --cyan-glow:rgba(6,182,212,0.25);
  --electric:#3B82F6;
  --slate:#475569;
  --concrete:#F1F5F9;
  --concrete-dark:#E2E8F0;
  --white:#FFFFFF;
  --text:#1E293B;
  --text-light:#64748B;
  --muted:#94A3B8;
  --line:#CBD5E1;
  --shadow-sm:0 2px 8px rgba(10,22,40,0.08);
  --shadow:0 10px 30px rgba(10,22,40,0.12);
  --shadow-lg:0 20px 50px rgba(10,22,40,0.18);
  --shadow-cyan:0 12px 28px rgba(6,182,212,0.25);
  --radius:12px;
  --radius-lg:20px;
  --radius-xl:28px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --transition:all .4s var(--ease);
  --font-display:'Syne',system-ui,sans-serif;
  --font-body:'DM Sans',system-ui,-apple-system,sans-serif;
}

body{
  font-family:var(--font-body);
  background:var(--white);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  font-size:16px;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--navy);line-height:1.15;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(2.2rem,5.5vw,4rem);font-weight:800;letter-spacing:-.03em}
h2{font-size:clamp(1.9rem,4.2vw,2.8rem);font-weight:700}
h3{font-size:clamp(1.3rem,2.3vw,1.6rem)}
h4{font-size:1.1rem}
p{color:var(--text-light);margin-bottom:1rem}

.container{width:min(1240px,92%);margin:0 auto}
section{padding:110px 0;position:relative}

/* ===== ARCHITECTURAL BACKGROUND ===== */
.arch-bg{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.arch-line{position:absolute;background:rgba(6,182,212,0.08)}
.line-v1{left:15%;top:0;bottom:0;width:1px}
.line-v2{left:50%;top:0;bottom:0;width:1px}
.line-v3{right:15%;top:0;bottom:0;width:1px}
.line-h1{left:0;right:0;top:30%;height:1px}
.line-h2{left:0;right:0;top:70%;height:1px}
.glow{position:absolute;border-radius:50%;filter:blur(100px);opacity:.5;animation:glowFloat 28s ease-in-out infinite}
.glow-cyan{width:500px;height:500px;background:radial-gradient(circle,var(--cyan-glow),transparent 70%);top:-150px;right:-100px}
.glow-blue{width:450px;height:450px;background:radial-gradient(circle,rgba(59,130,246,.15),transparent 70%);bottom:15%;left:-120px;animation-delay:-14s}
@keyframes glowFloat{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(40px,-30px) scale(1.1)}}

/* ===== NAVIGATION ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:18px 0;
  background:rgba(255,255,255,0.8);
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  border-bottom:1px solid transparent;
  transition:var(--transition);
}
.nav.scrolled{padding:12px 0;background:rgba(255,255,255,0.95);border-bottom-color:var(--line);box-shadow:var(--shadow-sm)}
.nav-inner{width:min(1240px,92%);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:44px;height:44px;
  background:var(--navy);
  border-radius:10px;
  display:grid;place-items:center;
  transition:transform .4s var(--ease);
  position:relative;overflow:hidden;
}
.brand:hover .brand-mark{transform:rotate(-5deg)}
.mark-lines{display:flex;flex-direction:column;gap:4px;width:20px}
.mark-lines span{height:2px;background:var(--cyan);border-radius:1px;transition:var(--transition)}
.mark-lines span:nth-child(1){width:100%}
.mark-lines span:nth-child(2){width:70%}
.mark-lines span:nth-child(3){width:40%}
.brand-name{display:flex;flex-direction:column;line-height:1}
.brand-top{font-family:var(--font-display);font-size:1rem;font-weight:800;color:var(--navy);letter-spacing:.02em}
.brand-sub{font-size:.65rem;color:var(--cyan-deep);font-weight:700;letter-spacing:.2em;margin-top:3px}
.nav-links{display:flex;gap:4px}
.nav-links a{
  padding:10px 16px;border-radius:8px;
  font-size:.92rem;font-weight:500;color:var(--text-light);
  transition:var(--transition);
  position:relative;
}
.nav-links a::before{
  content:'';position:absolute;bottom:4px;left:50%;transform:translateX(-50%);
  width:0;height:2px;background:var(--cyan);
  transition:width .3s var(--ease);
}
.nav-links a:hover{color:var(--navy)}
.nav-links a:hover::before{width:60%}
.nav-cta{
  display:inline-flex;align-items:center;gap:12px;
  padding:12px 22px;border-radius:10px;
  background:var(--navy);color:var(--cyan-light);
  font-weight:700;font-size:.88rem;font-family:var(--font-display);
  transition:var(--transition);
}
.nav-cta:hover{background:var(--cyan);color:var(--navy);transform:translateY(-2px);box-shadow:var(--shadow-cyan)}
.nav-cta i{transition:transform .3s}
.nav-cta:hover i{transform:translateX(4px)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:8px;background:var(--navy);position:relative}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;background:var(--cyan);border-radius:2px;transition:var(--transition)}
.nav-toggle span:nth-child(1){top:16px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:26px}
.nav-toggle.active span:nth-child(1){top:21px;transform:rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 30px;border-radius:10px;
  font-weight:600;font-size:.96rem;font-family:var(--font-body);
  transition:var(--transition);
  border:none;cursor:pointer;white-space:nowrap;
}
.btn-primary{
  background:var(--navy);color:var(--cyan-light);
  box-shadow:0 8px 20px rgba(10,22,40,0.2);
  position:relative;overflow:hidden;
}
.btn-primary::after{
  content:'';position:absolute;top:-50%;left:-60%;
  width:50%;height:200%;
  background:linear-gradient(90deg,transparent,rgba(6,182,212,0.3),transparent);
  transform:skewX(-20deg);
  transition:left .7s var(--ease);
}
.btn-primary:hover::after{left:130%}
.btn-primary:hover{background:var(--cyan);color:var(--navy);transform:translateY(-3px);box-shadow:var(--shadow-cyan)}
.btn-ghost{background:transparent;border:1.5px solid var(--navy);color:var(--navy)}
.btn-ghost:hover{background:var(--navy);color:var(--cyan-light);transform:translateY(-3px)}
.btn-lg{padding:18px 36px;font-size:1.02rem}
.btn-sm{padding:10px 22px;font-size:.88rem}
.btn-full{width:100%}
.btn i{transition:transform .3s}
.btn:hover i.fa-arrow-right{transform:translateX(4px)}

/* ===== HERO ===== */
.hero{padding:150px 0 80px;min-height:100vh;position:relative}
.hero-wrap{
  width:min(1240px,92%);margin:0 auto;
  display:grid;grid-template-columns:1.2fr 1fr;gap:70px;align-items:center;
  margin-bottom:70px;
}
.hero-badge{
  display:flex;align-items:center;gap:12px;
  margin-bottom:28px;
}
.badge-line{width:30px;height:2px;background:var(--cyan)}
.hero-badge span:last-child{
  font-size:.8rem;font-weight:700;color:var(--cyan-deep);
  letter-spacing:.2em;text-transform:uppercase;
}
.hero-title{margin-bottom:28px}
.hero-title .highlight{
  display:inline-block;
  background:linear-gradient(135deg,var(--cyan-deep),var(--cyan-light));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  position:relative;
}
.hero-title .highlight::after{
  content:'';position:absolute;bottom:-6px;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-light));
  border-radius:2px;opacity:.4;
}
.hero-desc{font-size:1.15rem;line-height:1.75;color:var(--text-light);margin-bottom:36px;max-width:600px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}

.hero-highlights{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:580px}
.highlight-item{
  display:flex;align-items:center;gap:12px;
  padding:14px 16px;border-radius:var(--radius);
  background:var(--concrete);
  border:1px solid var(--line);
  transition:var(--transition);
}
.highlight-item:hover{border-color:var(--cyan);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.highlight-item i{color:var(--cyan-deep);font-size:1.3rem;flex-shrink:0}
.highlight-item strong{display:block;font-size:.85rem;color:var(--navy);margin-bottom:2px}
.highlight-item span{font-size:.72rem;color:var(--muted)}

.hero-visual{position:relative;height:500px}
.skyline{
  position:absolute;inset:0;
  display:flex;align-items:flex-end;justify-content:center;
  gap:8px;padding:20px;
}
.building{
  position:relative;
  background:linear-gradient(180deg,var(--navy) 0%,var(--navy-light) 100%);
  border-radius:4px 4px 0 0;
  animation:buildingFloat 6s ease-in-out infinite;
}
.building::before{
  content:'';position:absolute;inset:8px;
  background-image:
    repeating-linear-gradient(0deg,transparent 0,transparent 12px,rgba(6,182,212,0.3) 12px,rgba(6,182,212,0.3) 14px),
    repeating-linear-gradient(90deg,transparent 0,transparent 10px,rgba(6,182,212,0.3) 10px,rgba(6,182,212,0.3) 12px);
  border-radius:2px;
}
.b1{width:60px;height:280px;animation-delay:0s}
.b2{width:80px;height:380px;animation-delay:-.8s}
.b3{width:100px;height:450px;animation-delay:-1.5s;background:linear-gradient(180deg,var(--cyan-deep) 0%,var(--cyan) 100%)}
.b4{width:70px;height:340px;animation-delay:-2.2s}
.b5{width:90px;height:300px;animation-delay:-3s}
@keyframes buildingFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

.gondola{
  position:absolute;
  width:50px;height:20px;
  background:var(--cyan);
  border-radius:4px;
  top:180px;right:30%;
  animation:gondolaMove 10s ease-in-out infinite;
  box-shadow:0 4px 12px var(--cyan-glow);
}
.gondola::before{
  content:'';position:absolute;
  top:-200px;left:50%;width:1px;height:200px;
  background:linear-gradient(180deg,var(--cyan) 0%,transparent 100%);
}
.worker-dot{
  position:absolute;
  width:8px;height:8px;border-radius:50%;
  background:var(--cyan-light);
  top:200px;right:28%;
  box-shadow:0 0 12px var(--cyan-light);
  animation:gondolaMove 10s ease-in-out infinite;
}
@keyframes gondolaMove{0%,100%{transform:translate(0,0)}25%{transform:translate(0,30px)}50%{transform:translate(-20px,50px)}75%{transform:translate(10px,20px)}}

.floating-stat{
  position:absolute;
  padding:14px 18px;border-radius:var(--radius);
  background:var(--white);
  border:1px solid var(--line);
  display:flex;align-items:center;gap:12px;
  box-shadow:var(--shadow);
  animation:statFloat 5s ease-in-out infinite;
}
.stat-icon{
  width:42px;height:42px;border-radius:10px;flex-shrink:0;
  background:var(--navy);color:var(--cyan);
  display:grid;place-items:center;font-size:1.1rem;
}
.floating-stat strong{display:block;font-size:1.1rem;color:var(--navy);margin-bottom:2px;font-family:var(--font-display)}
.floating-stat span{font-size:.78rem;color:var(--muted)}
.stat-1{top:20px;left:-20px;animation-delay:0s}
.stat-2{bottom:40px;right:-10px;animation-delay:-2.5s}
@keyframes statFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

.hero-stats{
  width:min(1240px,92%);margin:0 auto;
  display:grid;grid-template-columns:auto 1px auto 1px auto 1px auto;gap:40px;
  padding:36px 56px;border-radius:var(--radius-xl);
  background:var(--navy);
  align-items:center;
  box-shadow:var(--shadow-lg);
  position:relative;overflow:hidden;
}
.hero-stats::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);
}
.stat{text-align:center}
.stat-number{font-family:var(--font-display);font-size:2.8rem;font-weight:800;color:var(--cyan-light);line-height:1}
.stat-label{font-size:.82rem;color:rgba(255,255,255,.7);margin-top:6px;font-weight:500}
.stat-divider{width:1px;height:50px;background:rgba(255,255,255,.1)}

/* ===== SECTION HEADERS ===== */
.section-head{text-align:center;max-width:720px;margin:0 auto 70px}
.section-tag{display:flex;align-items:center;gap:12px;margin-bottom:22px;justify-content:center}
.section-tag.left{justify-content:flex-start}
.tag-num{font-family:var(--font-display);font-size:.9rem;font-weight:700;color:var(--cyan-deep);padding:4px 12px;background:var(--concrete);border-radius:6px;border:1px solid var(--line)}
.tag-line{width:40px;height:2px;background:var(--navy)}
.section-tag span:last-child{
  font-size:.8rem;font-weight:700;color:var(--navy);
  letter-spacing:.2em;
}
.section-head h2{margin-bottom:18px}
.section-head p{font-size:1.1rem;line-height:1.7}

/* ===== SERVICES ===== */
.services{background:var(--concrete)}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{
  padding:32px 28px;border-radius:var(--radius-lg);
  background:var(--white);
  border:1px solid var(--line);
  transition:var(--transition);
  display:flex;flex-direction:column;
  position:relative;overflow:hidden;
}
.service-card.featured{
  grid-column:span 1;grid-row:span 2;
  background:var(--navy);
  color:var(--white);
  border-color:var(--navy);
}
.service-card.featured h3,.service-card.featured p,.service-card.featured .service-features li{color:var(--white)}
.service-card.featured p{color:rgba(255,255,255,.8)}
.service-card.featured .service-features i{color:var(--cyan-light)}
.service-card.featured .service-link{color:var(--cyan-light)}
.service-card.featured .service-link:hover{color:var(--white)}
.service-card.featured .service-num{color:var(--cyan)}
.service-card.featured .service-icon{background:rgba(6,182,212,.15);color:var(--cyan)}
.service-card.featured .service-corner{background:linear-gradient(135deg,var(--cyan),transparent)}

.service-corner{
  position:absolute;top:0;right:0;
  width:80px;height:80px;
  background:linear-gradient(135deg,var(--cyan-glow),transparent);
  transition:var(--transition);
}
.service-card:hover .service-corner{width:120px;height:120px}

.service-badge{
  position:absolute;top:16px;right:16px;z-index:2;
  padding:5px 12px;border-radius:6px;
  background:var(--cyan);color:var(--navy);
  font-size:.65rem;font-weight:800;letter-spacing:.1em;
}
.service-num{font-family:var(--font-display);font-size:3rem;font-weight:800;color:var(--concrete-dark);line-height:1;margin-bottom:14px;letter-spacing:-.04em}
.service-icon{
  width:56px;height:56px;border-radius:14px;
  background:var(--concrete);
  color:var(--navy);
  display:grid;place-items:center;font-size:1.4rem;
  margin-bottom:20px;
  transition:var(--transition);
  border:1px solid var(--line);
}
.service-card:hover .service-icon{transform:rotate(-8deg) scale(1.08);background:var(--cyan);color:var(--navy);border-color:var(--cyan)}
.service-card h3{margin-bottom:12px;font-size:1.25rem}
.service-card p{margin-bottom:18px;font-size:.94rem;line-height:1.65}
.service-features{display:grid;gap:8px;margin-bottom:22px}
.service-features li{display:flex;align-items:center;gap:10px;font-size:.88rem;color:var(--text)}
.service-features i{color:var(--cyan-deep);font-size:.8rem}
.service-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--navy);font-weight:600;font-size:.92rem;
  margin-top:auto;padding-top:14px;
  border-top:1px solid var(--line);
}
.service-card.featured .service-link{border-top-color:rgba(255,255,255,.15)}
.service-link span{transition:transform .3s}
.service-link:hover span{transform:translateX(5px)}
.service-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:var(--cyan)}

/* ===== STATISTICS ===== */
.stats-section{padding:80px 0;background:var(--white)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{
  padding:36px 24px;border-radius:var(--radius-lg);
  background:var(--concrete);
  border:1px solid var(--line);
  text-align:center;
  transition:var(--transition);
  position:relative;overflow:hidden;
}
.stat-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-light));
  transform:scaleX(0);transform-origin:left;
  transition:transform .5s var(--ease);
}
.stat-card:hover::before{transform:scaleX(1)}
.stat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--cyan)}
.stat-icon-wrap{
  width:64px;height:64px;border-radius:16px;
  background:var(--navy);color:var(--cyan);
  display:grid;place-items:center;font-size:1.5rem;
  margin:0 auto 18px;
  transition:var(--transition);
}
.stat-card:hover .stat-icon-wrap{transform:rotate(-8deg);background:var(--cyan);color:var(--navy)}
.stat-card .stat-number{font-family:var(--font-display);font-size:3rem;font-weight:800;color:var(--navy);line-height:1;display:inline-block}
.stat-suffix{font-family:var(--font-display);font-size:1.8rem;color:var(--cyan);font-weight:700;display:inline-block}
.stat-card .stat-label{font-size:.9rem;color:var(--text-light);margin-top:8px}

/* ===== PROCESS ===== */
.process{background:var(--concrete)}
.process-steps{max-width:960px;margin:0 auto;position:relative}
.process-connector{
  position:absolute;left:38px;top:40px;bottom:40px;width:2px;
  background:linear-gradient(180deg,var(--line),var(--cyan),var(--line));
}
.process-step{display:grid;grid-template-columns:76px 1fr;gap:32px;margin-bottom:40px;align-items:start;position:relative}
.process-step:last-child{margin-bottom:0}
.step-marker{position:relative;z-index:2}
.step-num{
  width:76px;height:76px;border-radius:50%;
  background:var(--white);
  border:2px solid var(--navy);
  display:grid;place-items:center;
  font-family:var(--font-display);font-size:1.5rem;font-weight:800;
  color:var(--navy);
  transition:var(--transition);
  box-shadow:var(--shadow-sm);
}
.step-ring{
  position:absolute;inset:-6px;border-radius:50%;
  border:2px solid var(--cyan);opacity:0;
  transition:var(--transition);
}
.process-step:hover .step-num{background:var(--navy);color:var(--cyan);border-color:var(--navy);transform:scale(1.08)}
.process-step:hover .step-ring{opacity:1;inset:-10px}
.step-content{
  padding:28px 30px;border-radius:var(--radius-lg);
  background:var(--white);
  border:1px solid var(--line);
  transition:var(--transition);
}
.process-step:hover .step-content{border-color:var(--cyan);box-shadow:var(--shadow)}
.step-tag{
  display:inline-block;padding:4px 12px;border-radius:6px;
  background:var(--concrete);color:var(--cyan-deep);
  font-size:.7rem;font-weight:700;letter-spacing:.1em;
  margin-bottom:12px;
}
.step-content h3{margin-bottom:12px}
.step-content p{margin-bottom:16px;line-height:1.7}
.step-features{display:flex;gap:10px;flex-wrap:wrap}
.step-features span{padding:5px 12px;border-radius:100px;background:var(--concrete);color:var(--navy);font-size:.78rem;font-weight:600;border:1px solid var(--line)}

/* ===== PORTFOLIO ===== */
.portfolio{background:var(--white)}
.portfolio-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.project-card{
  border-radius:var(--radius-lg);overflow:hidden;
  transition:var(--transition);
  position:relative;
  height:380px;
  cursor:pointer;
}
.project-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.project-visual{
  position:absolute;inset:0;
  transition:transform .6s var(--ease);
  position:relative;
}
.project-card:hover .project-visual{transform:scale(1.05)}
.pv-tower,.pv-hotel,.pv-res,.pv-corp{
  position:absolute;inset:0;
}
.pv-tower{
  background:
    linear-gradient(135deg,#0A1628 0%,#1E293B 50%,#06B6D4 100%),
    repeating-linear-gradient(0deg,rgba(6,182,212,0.2) 0px,rgba(6,182,212,0.2) 1px,transparent 1px,transparent 12px),
    repeating-linear-gradient(90deg,rgba(6,182,212,0.2) 0px,rgba(6,182,212,0.2) 1px,transparent 1px,transparent 12px);
}
.pv-hotel{
  background:
    linear-gradient(135deg,#1E293B 0%,#0A1628 50%,#22D3EE 100%),
    repeating-linear-gradient(45deg,rgba(6,182,212,0.15) 0px,rgba(6,182,212,0.15) 2px,transparent 2px,transparent 15px);
}
.pv-res{
  background:
    linear-gradient(135deg,#0891B2 0%,#06B6D4 50%,#0A1628 100%),
    repeating-linear-gradient(-45deg,rgba(255,255,255,0.1) 0px,rgba(255,255,255,0.1) 2px,transparent 2px,transparent 15px);
}
.pv-corp{
  background:
    linear-gradient(135deg,#0A1628 0%,#1E293B 50%,#3B82F6 100%),
    repeating-linear-gradient(0deg,rgba(59,130,246,0.15) 0px,rgba(59,130,246,0.15) 1px,transparent 1px,transparent 15px),
    repeating-linear-gradient(90deg,rgba(59,130,246,0.15) 0px,rgba(59,130,246,0.15) 1px,transparent 1px,transparent 15px);
}
.project-visual::after{
  content:'';position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(0deg,transparent 0,transparent 30px,rgba(6,182,212,0.08) 30px,rgba(6,182,212,0.08) 31px),
    repeating-linear-gradient(90deg,transparent 0,transparent 30px,rgba(6,182,212,0.08) 30px,rgba(6,182,212,0.08) 31px);
}
.project-overlay{
  position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(10,22,40,0.95) 0%,rgba(10,22,40,0.4) 60%,transparent 100%);
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:28px;
  opacity:0;transition:opacity .4s var(--ease);
}
.project-card:hover .project-overlay{opacity:1}
.project-type{
  display:inline-block;padding:5px 12px;border-radius:6px;
  background:var(--cyan);color:var(--navy);
  font-size:.68rem;font-weight:800;letter-spacing:.1em;
  margin-bottom:12px;width:fit-content;
}
.project-overlay h4{color:var(--white);margin-bottom:10px;font-size:1.3rem}
.project-overlay p{color:rgba(255,255,255,.85);margin-bottom:16px;font-size:.9rem;line-height:1.6}
.project-stats{display:flex;gap:16px;flex-wrap:wrap}
.project-stats span{display:inline-flex;align-items:center;gap:6px;font-size:.82rem;color:var(--cyan-light);font-weight:600}
.project-stats i{font-size:.8rem}

/* ===== ARTICLE ===== */
.article{background:var(--concrete)}
.article-container{display:grid;grid-template-columns:280px 1fr;gap:70px;align-items:start;width:min(1240px,92%);margin:0 auto}
.article-sidebar{position:sticky;top:100px;display:flex;flex-direction:column;gap:24px}
.sidebar-widget{
  padding:28px;border-radius:var(--radius-lg);
  background:var(--white);
  border:1px solid var(--line);
}
.widget-header{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.widget-header i{color:var(--cyan-deep);font-size:1.1rem}
.widget-header h4{font-size:1.05rem;margin:0}
.toc{display:flex;flex-direction:column;gap:4px}
.toc a{
  padding:9px 12px;border-radius:6px;
  font-size:.88rem;color:var(--text-light);
  border-left:2px solid transparent;
  transition:var(--transition);
}
.toc a:hover{background:var(--concrete);color:var(--navy);border-left-color:var(--cyan);padding-left:16px}

.sidebar-cta{
  padding:28px;border-radius:var(--radius-lg);
  background:var(--navy);
  color:var(--white);text-align:center;
}
.sidebar-cta .cta-icon{font-size:2rem;color:var(--cyan);margin-bottom:14px}
.sidebar-cta h4{color:var(--white);margin-bottom:10px;font-size:1.1rem}
.sidebar-cta p{color:rgba(255,255,255,.8);font-size:.88rem;margin-bottom:18px}
.sidebar-cta .btn{background:var(--cyan);color:var(--navy);width:100%}
.sidebar-cta .btn:hover{background:var(--white);color:var(--navy)}

.article-header{margin-bottom:40px;padding-bottom:24px;border-bottom:2px solid var(--line)}
.article-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.article-tags .tag{
  padding:5px 12px;border-radius:6px;
  background:var(--navy);color:var(--cyan-light);
  font-size:.7rem;font-weight:700;letter-spacing:.1em;
}
.article-meta{display:flex;gap:20px;flex-wrap:wrap;font-size:.85rem;color:var(--text-light)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--cyan-deep);font-size:.8rem}

.article-body h2{
  margin:56px 0 24px;font-size:2rem;
  padding-top:28px;border-top:1px solid var(--line);
  position:relative;
}
.article-body h2:first-of-type{border-top:0;padding-top:0;margin-top:0}
.article-body h2::before{
  content:'';position:absolute;top:-1px;left:0;
  width:60px;height:4px;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-light));
}
.article-body h2:first-of-type::before{display:none}
.article-body h3{
  margin:36px 0 16px;color:var(--navy);
  font-size:1.3rem;
  position:relative;padding-left:24px;
}
.article-body h3::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:14px;height:3px;background:var(--cyan);border-radius:2px;
}
.article-body p{margin-bottom:20px;font-size:1.02rem;line-height:1.8;color:var(--text)}
.article-body a{color:var(--cyan-deep);font-weight:600;border-bottom:1px solid var(--cyan-glow)}
.article-body a:hover{border-bottom-color:var(--cyan-deep);color:var(--navy)}
.lead{font-size:1.25rem;line-height:1.7;color:var(--text);margin-bottom:28px;font-weight:500}
.article-body ul,.article-body ol{margin-bottom:24px;padding-left:0}
.article-body ul li,.article-body ol li{
  padding:10px 0 10px 30px;position:relative;
  font-size:.98rem;line-height:1.7;color:var(--text);
}
.article-body ul li::before{
  content:'▸';position:absolute;left:8px;top:10px;
  color:var(--cyan-deep);font-weight:700;font-size:1rem;
}
.checklist{display:flex;flex-direction:column;gap:12px;margin:24px 0}
.check-item{
  display:flex;align-items:start;gap:14px;
  padding:16px 20px;border-radius:var(--radius);
  background:var(--white);border:1px solid var(--line);
}
.check-item i{color:var(--cyan-deep);font-size:1.3rem;flex-shrink:0;margin-top:2px}
.check-item strong{display:block;color:var(--navy);margin-bottom:4px;font-size:.98rem}
.check-item span{font-size:.88rem;color:var(--text-light);line-height:1.5}

.callout-box{
  display:flex;gap:20px;align-items:flex-start;
  padding:28px;border-radius:var(--radius-lg);margin:36px 0;
  background:var(--white);
  border-left:4px solid var(--cyan);
  box-shadow:var(--shadow-sm);
}
.callout-box.tip{background:linear-gradient(135deg,rgba(6,182,212,0.05),var(--white))}
.callout-icon{font-size:1.6rem;color:var(--cyan-deep);flex-shrink:0;margin-top:4px}
.callout-content strong{color:var(--navy);display:block;margin-bottom:8px}
.callout-content p{margin:0;line-height:1.7}

.warning-box{
  display:flex;gap:20px;align-items:flex-start;
  padding:28px;border-radius:var(--radius-lg);margin:36px 0;
  background:linear-gradient(135deg,#FEF3C7,rgba(245,158,11,0.1));
  border-left:4px solid #F59E0B;
}
.warning-icon{font-size:1.6rem;color:#D97706;flex-shrink:0;margin-top:4px}
.warning-body strong{color:#92400E;display:block;margin-bottom:8px}
.warning-body p{margin:0;line-height:1.7}

.standards-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin:32px 0}
.standard-card{
  padding:26px 22px;border-radius:var(--radius-lg);
  background:var(--white);border:1px solid var(--line);
  transition:var(--transition);
}
.standard-card:hover{transform:translateY(-4px);border-color:var(--cyan);box-shadow:var(--shadow)}
.standard-icon{
  width:48px;height:48px;border-radius:12px;
  background:var(--navy);color:var(--cyan);
  display:grid;place-items:center;font-size:1.2rem;
  margin-bottom:16px;
}
.standard-card h4{margin-bottom:8px}
.standard-card p{font-size:.88rem;line-height:1.6;margin:0}

.equipment-table{overflow-x:auto;margin:32px 0;border-radius:var(--radius-lg);border:1px solid var(--line)}
.equipment-table table{width:100%;border-collapse:collapse;min-width:550px;background:var(--white)}
.equipment-table th,.equipment-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line)}
.equipment-table th{
  background:var(--navy);
  color:var(--cyan-light);font-weight:700;font-size:.82rem;letter-spacing:.05em;
  font-family:var(--font-display);
}
.equipment-table th:first-child{border-radius:var(--radius-lg) 0 0 0}
.equipment-table th:last-child{border-radius:0 var(--radius-lg) 0 0}
.equipment-table td{color:var(--text);font-size:.92rem}
.equipment-table tr:last-child td{border-bottom:0}
.equipment-table tbody tr:hover{background:var(--concrete)}

.benefits-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:40px 0}
.benefit-card{
  padding:28px 24px;border-radius:var(--radius-lg);
  background:var(--white);
  border:1px solid var(--line);
  transition:var(--transition);
}
.benefit-card:hover{transform:translateY(-4px);border-color:var(--cyan);box-shadow:var(--shadow)}
.benefit-icon{
  width:52px;height:52px;border-radius:12px;
  background:var(--navy);
  color:var(--cyan);
  display:grid;place-items:center;font-size:1.2rem;
  margin-bottom:16px;
  transition:var(--transition);
}
.benefit-card:hover .benefit-icon{background:var(--cyan);color:var(--navy);transform:rotate(-8deg)}
.benefit-card h4{margin-bottom:10px}
.benefit-card p{font-size:.9rem;line-height:1.65;margin:0}

.quote-box{
  margin:48px 0;padding:40px 36px;border-radius:var(--radius-xl);
  background:var(--navy);
  color:var(--white);position:relative;
  box-shadow:var(--shadow-lg);
}
.quote-box::before{
  content:'"';position:absolute;top:-10px;left:24px;
  font-family:var(--font-display);font-size:7rem;
  color:var(--cyan);opacity:.3;line-height:1;
}
.quote-box blockquote{
  font-size:1.35rem;line-height:1.5;font-weight:500;
  color:var(--white);margin-bottom:18px;position:relative;z-index:1;
}
.quote-box cite{display:block;font-style:normal;font-size:.9rem;font-weight:600;color:var(--cyan)}

.article-cta{
  margin-top:60px;padding:44px;border-radius:var(--radius-xl);
  background:var(--navy);
  color:var(--white);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow-lg);
  position:relative;overflow:hidden;
}
.article-cta::before{
  content:'';position:absolute;top:-50%;right:-20%;
  width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle,var(--cyan-glow),transparent 60%);
}
.cta-content h3{color:var(--white);margin-bottom:10px;font-size:1.6rem;position:relative;z-index:1}
.cta-content p{color:rgba(255,255,255,.8);margin:0;font-size:1rem;max-width:500px;position:relative;z-index:1}
.article-cta .btn{position:relative;z-index:1;background:var(--cyan);color:var(--navy)}

/* ===== FAQ ===== */
.faq{background:var(--white)}
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:var(--radius);
  background:var(--concrete);
  border:1px solid var(--line);
  overflow:hidden;transition:var(--transition);
}
.faq-item[open]{border-color:var(--cyan);box-shadow:var(--shadow-sm);background:var(--white)}
.faq-item summary{
  list-style:none;padding:22px 26px;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-weight:600;font-size:1.05rem;color:var(--navy);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{
  color:var(--cyan-deep);transition:transform .3s var(--ease);flex-shrink:0;
  width:32px;height:32px;border-radius:50%;background:var(--white);
  display:grid;place-items:center;font-size:.85rem;
  border:1px solid var(--line);
}
.faq-item[open] summary i{transform:rotate(45deg);background:var(--cyan);color:var(--navy);border-color:var(--cyan)}
.faq-item div:not(summary){padding:0 26px 24px;line-height:1.8;font-size:.95rem;color:var(--text)}
.faq-item div p:last-child{margin:0}

/* ===== TESTIMONIALS ===== */
.testimonials{background:var(--concrete)}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.testi-card{
  padding:34px 30px;border-radius:var(--radius-xl);
  background:var(--white);
  border:1px solid var(--line);
  transition:var(--transition);position:relative;
}
.testi-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:var(--cyan)}
.testi-card::before{
  content:'"';position:absolute;top:12px;right:24px;
  font-family:var(--font-display);font-size:5rem;
  color:var(--concrete-dark);line-height:1;
}
.testi-rating{color:var(--cyan-deep);margin-bottom:18px;font-size:.95rem;letter-spacing:3px}
.testi-text{font-size:1rem;line-height:1.8;color:var(--text);margin-bottom:26px;position:relative;z-index:1}
.testi-author{display:flex;align-items:center;gap:14px;padding-top:22px;border-top:1px solid var(--line)}
.testi-initials{
  width:52px;height:52px;border-radius:50%;flex-shrink:0;
  background:var(--navy);
  color:var(--cyan);
  display:grid;place-items:center;font-weight:700;font-size:1rem;
  font-family:var(--font-display);
}
.testi-info strong{display:block;color:var(--navy);margin-bottom:3px}
.testi-info span{font-size:.85rem;color:var(--text-light)}

/* ===== CONTACT ===== */
.contact{background:var(--white)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start}
.contact-info h2{margin-bottom:18px}
.contact-info>p{font-size:1.05rem;line-height:1.7;margin-bottom:36px}
.contact-details{display:flex;flex-direction:column;gap:14px;margin-bottom:36px}
.contact-row{
  display:flex;gap:18px;align-items:center;
  padding:18px 22px;border-radius:var(--radius);
  background:var(--concrete);
  border:1px solid var(--line);
  transition:var(--transition);
}
.contact-row:hover{border-color:var(--cyan);transform:translateX(4px);box-shadow:var(--shadow-sm)}
.contact-icon{
  width:48px;height:48px;border-radius:10px;flex-shrink:0;
  background:var(--navy);
  color:var(--cyan);
  display:grid;place-items:center;font-size:1.1rem;
  transition:var(--transition);
}
.contact-row:hover .contact-icon{background:var(--cyan);color:var(--navy);transform:rotate(-8deg)}
.contact-text{flex:1}
.contact-text strong{display:block;color:var(--navy);font-size:.82rem;letter-spacing:.05em;margin-bottom:4px;font-weight:700}
.contact-text span{color:var(--text);font-size:.96rem}
.contact-actions{display:flex;gap:14px;flex-wrap:wrap}

.contact-form{
  padding:42px;border-radius:var(--radius-xl);
  background:var(--concrete);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.contact-form h3{margin-bottom:10px;font-size:1.6rem}
.contact-form>p{margin-bottom:28px;color:var(--text-light);font-size:.94rem}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:20px}
.form-group label{display:block;margin-bottom:8px;font-size:.88rem;font-weight:600;color:var(--navy)}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:14px 16px;
  background:var(--white);border:1.5px solid var(--line);border-radius:10px;
  color:var(--text);font-family:inherit;font-size:.94rem;
  transition:var(--transition);
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--cyan);background:var(--white);
  box-shadow:0 0 0 4px var(--cyan-glow);
}
.form-group textarea{resize:vertical;min-height:110px}
.form-note{margin-top:16px;font-size:.82rem;color:var(--text-light);text-align:center;display:flex;align-items:center;justify-content:center;gap:6px}
.form-note i{color:var(--cyan-deep)}

/* ===== FOOTER ===== */
.footer{
  background:var(--navy);
  color:rgba(255,255,255,.75);
  padding:80px 0 30px;
  border-top:4px solid var(--cyan);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:50px;margin-bottom:50px}
.footer-col h4{color:var(--white);font-size:1.05rem;margin-bottom:22px;font-family:var(--font-display)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col ul a{color:rgba(255,255,255,.7);font-size:.92rem;transition:var(--transition)}
.footer-col ul a:hover{color:var(--cyan-light);padding-left:4px}

.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.footer-mark{
  width:44px;height:44px;
  background:var(--cyan);
  border-radius:10px;
  display:grid;place-items:center;
}
.footer-mark .mark-lines span{background:var(--navy)}
.footer-name{display:flex;flex-direction:column;line-height:1}
.footer-name .brand-top{color:var(--white)}
.footer-name .brand-sub{color:var(--cyan)}
.footer-col p{color:rgba(255,255,255,.7);font-size:.92rem;line-height:1.7;margin-bottom:20px}

.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:42px;height:42px;border-radius:10px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
  display:grid;place-items:center;color:rgba(255,255,255,.75);
  transition:var(--transition);
}
.footer-social a:hover{background:var(--cyan);color:var(--navy);border-color:var(--cyan);transform:translateY(-3px)}

.footer-contact li{display:flex;align-items:flex-start;gap:12px;color:rgba(255,255,255,.7);font-size:.92rem;margin-bottom:14px}
.footer-contact i{color:var(--cyan);margin-top:4px;flex-shrink:0;width:16px}
.footer-contact a:hover{color:var(--white)}

.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:.85rem;color:rgba(255,255,255,.55)}

/* ===== REVEAL ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ===== RESPONSIVE ===== */
@media (max-width:1100px){
  .hero-wrap{grid-template-columns:1fr;gap:50px}
  .hero-visual{height:400px}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .service-card.featured{grid-column:span 2;grid-row:span 1}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .portfolio-grid{grid-template-columns:1fr}
  .project-card{height:340px}
  .article-container{grid-template-columns:1fr;gap:50px}
  .article-sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .sidebar-widget,.sidebar-cta{flex:1;min-width:280px}
  .contact-grid{grid-template-columns:1fr;gap:50px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
  .hero-highlights{grid-template-columns:repeat(2,1fr)}
  .standards-grid,.benefits-grid{grid-template-columns:repeat(2,1fr)}
  .testimonials-grid{grid-template-columns:1fr}
}

@media (max-width:768px){
  section{padding:80px 0}
  .nav-links{
    position:fixed;top:78px;left:16px;right:16px;
    background:var(--white);backdrop-filter:blur(20px);
    border:1px solid var(--line);border-radius:16px;
    padding:20px;flex-direction:column;gap:4px;
    transform:translateY(-20px);opacity:0;pointer-events:none;
    transition:var(--transition);box-shadow:var(--shadow-lg);
  }
  .nav-links.active{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{padding:14px 18px;display:block;width:100%}
  .nav-toggle{display:block}
  .nav-cta{display:none}
  
  .hero{padding:120px 0 50px}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{width:100%}
  .hero-highlights{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr;gap:24px;padding:28px}
  .stat-divider{width:100%;height:1px}
  
  .services-grid{grid-template-columns:1fr}
  .service-card.featured{grid-column:span 1}
  .process-connector{left:22px}
  .process-step{grid-template-columns:44px 1fr;gap:18px}
  .step-num{width:44px;height:44px;font-size:1rem}
  .step-content{padding:22px}
  
  .stats-grid,.standards-grid,.benefits-grid{grid-template-columns:1fr}
  
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  
  .article-cta{flex-direction:column;text-align:center;padding:32px}
  .cta-content p{max-width:100%}
  
  .floating-stat{padding:10px 14px}
  .stat-icon{width:36px;height:36px;font-size:.95rem}
  .stat-1{left:-10px}
  .stat-2{right:-10px}
}

@media (max-width:500px){
  .b1,.b2,.b3,.b4,.b5{width:auto;flex:1}
  .b1{height:180px}.b2{height:240px}.b3{height:300px}.b4{height:220px}.b5{height:200px}
  .hero-stats{padding:20px}
  .stat-number{font-size:2.2rem}
}