:root{--navy:#0a1628;--navy2:#0f2044;--blue:#1a3a8f;--blue2:#2255cc;--accent:#0ea5e9;--accent2:#38bdf8;--cyan:#06b6d4;--light:#f8fafc;--gray:#e2e8f0;--gray2:#64748b;--text:#1e293b;--white:#fff}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{font-family:'Segoe UI',system-ui,sans-serif;color:var(--text);background:#fff;overflow-x:hidden}

/* NAV */
nav{position:fixed;top:0;width:100%;z-index:999;background:rgba(255,255,255,.97);backdrop-filter:blur(14px);border-bottom:1px solid #e2e8f0;padding:0 5%}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;max-width:1200px;margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-text{color:var(--navy);font-size:18px;font-weight:800}
.logo-text span{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:30px;list-style:none}
.nav-links a{color:var(--gray2);text-decoration:none;font-size:14px;font-weight:500;transition:color .2s}
.nav-links a:hover,.nav-links a.active-link{color:var(--accent)}
.nav-cta{background:var(--accent);color:#fff;padding:9px 22px;border-radius:6px;font-size:14px;font-weight:600;text-decoration:none;transition:background .2s}
.nav-cta:hover{background:#0284c7}
.hamburger{display:none;flex-direction:column;cursor:pointer;gap:6px;background:none;border:none;padding:0;z-index:1000}
.hamburger span{width:24px;height:3px;background:var(--navy);border-radius:2px;transition:all .3s;display:block}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(8px,8px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(7px,-7px)}
.mobile-menu{display:none;position:fixed;top:68px;left:0;width:100%;background:#fff;border-bottom:1px solid var(--gray);flex-direction:column;z-index:998;box-shadow:0 4px 12px rgba(0,0,0,.1)}
.mobile-menu.active{display:flex}
.mobile-menu a,.mobile-menu button{padding:14px 20px;text-decoration:none;color:var(--gray2);font-size:15px;font-weight:500;border:none;background:none;cursor:pointer;text-align:left;transition:all .2s}
.mobile-menu a:hover{color:var(--accent);background:var(--light)}
.mobile-menu .nav-cta-mobile{background:var(--accent);color:#fff;font-weight:600;margin:10px 15px;border-radius:6px}

/* HERO */
.proj-hero{padding:120px 5% 60px;background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 50%,var(--blue) 100%);text-align:center;position:relative;overflow:hidden}
.proj-hero::before{content:'';position:absolute;top:-50%;right:-20%;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(14,165,233,.15),transparent 70%)}
.proj-hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle,rgba(34,85,204,.12),transparent 70%)}
.proj-hero h1{font-size:clamp(28px,4vw,48px);font-weight:900;color:#fff;letter-spacing:-1px;margin-bottom:16px;position:relative;z-index:1}
.proj-hero h1 span{color:var(--accent2)}
.proj-hero p{color:rgba(255,255,255,.7);font-size:16px;max-width:600px;margin:0 auto 32px;line-height:1.7;position:relative;z-index:1}
.proj-hero .section-tag{background:rgba(14,165,233,.2);color:var(--accent2);font-size:12px;font-weight:700;padding:6px 16px;border-radius:20px;display:inline-block;margin-bottom:18px;letter-spacing:.5px;position:relative;z-index:1}

/* STATS BAR */
.stats-bar{background:#fff;border-bottom:1px solid var(--gray);padding:28px 5%}
.stats-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-around;flex-wrap:wrap;gap:20px}
.stat-item{text-align:center}
.stat-item .num{font-size:28px;font-weight:900;color:var(--navy)}
.stat-item .num span{color:var(--accent)}
.stat-item .lbl{font-size:12px;color:var(--gray2);font-weight:600;margin-top:2px}

/* FILTER TABS */
.filter-section{padding:50px 5% 0;background:var(--light)}
.filter-inner{max-width:1200px;margin:0 auto}
.filter-tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:40px}
.filter-tab{padding:10px 22px;border-radius:8px;border:1.5px solid var(--gray);background:#fff;color:var(--gray2);font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}
.filter-tab:hover{border-color:var(--accent);color:var(--accent)}
.filter-tab.active{background:var(--accent);color:#fff;border-color:var(--accent)}

/* PROJECT CARDS */
.projects-section{padding:0 5% 80px;background:var(--light)}
.projects-inner{max-width:1200px;margin:0 auto}
.category-group{margin-bottom:50px}
.category-title{font-size:22px;font-weight:800;color:var(--navy);margin-bottom:8px;display:flex;align-items:center;gap:10px}
.category-title i{color:var(--accent);font-size:24px}
.category-subtitle{color:var(--gray2);font-size:14px;margin-bottom:24px;line-height:1.6}
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.proj-card{background:#fff;border:1px solid var(--gray);border-radius:16px;overflow:hidden;transition:all .25s;position:relative}
.proj-card::before{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent2));transform:scaleX(0);transform-origin:left;transition:transform .3s}
.proj-card:hover::before{transform:scaleX(1)}
.proj-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(10,22,40,.1)}
.proj-card-header{padding:22px 22px 0;display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.proj-tag{display:inline-block;background:#f0f9ff;color:var(--accent);padding:4px 12px;border-radius:20px;font-size:11px;font-weight:700;white-space:nowrap}
.proj-tag.green{background:#f0fdf4;color:#16a34a}
.proj-tag.purple{background:#faf5ff;color:#7c3aed}
.proj-tag.blue{background:#eff6ff;color:var(--blue2)}
.proj-tag.orange{background:#fff7ed;color:#ea580c}
.proj-budget{font-size:20px;font-weight:900;color:var(--navy);white-space:nowrap}
.proj-budget span{color:var(--accent)}
.proj-card-body{padding:16px 22px 22px}
.proj-card-body h3{font-size:16px;font-weight:700;color:var(--navy);margin-bottom:8px;line-height:1.3}
.proj-card-body p{font-size:13px;color:var(--gray2);line-height:1.65;margin-bottom:16px}
.proj-details{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding-top:14px;border-top:1px solid var(--gray)}
.proj-detail{display:flex;align-items:center;gap:8px}
.proj-detail i{font-size:16px;color:var(--accent);flex-shrink:0}
.proj-detail .detail-label{font-size:11px;color:var(--gray2);font-weight:500}
.proj-detail .detail-value{font-size:13px;color:var(--navy);font-weight:700}
.proj-deliverables{margin-top:14px;padding-top:14px;border-top:1px solid var(--gray)}
.proj-deliverables h4{font-size:12px;font-weight:700;color:var(--navy);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}
.proj-deliverables ul{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.proj-deliverables li{background:var(--light);border:1px solid var(--gray);padding:4px 10px;border-radius:6px;font-size:11px;color:var(--gray2);font-weight:600}

/* CTA BANNER */
.cta-banner{background:linear-gradient(135deg,var(--navy),var(--blue));padding:70px 5%;text-align:center}
.cta-banner h2{font-size:clamp(24px,3vw,36px);font-weight:900;color:#fff;margin-bottom:14px}
.cta-banner p{color:rgba(255,255,255,.7);font-size:15px;margin-bottom:28px;max-width:500px;margin-left:auto;margin-right:auto}
.cta-banner .btn-primary{background:var(--accent);color:#fff;padding:14px 30px;border-radius:8px;font-weight:700;font-size:15px;text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:all .2s;box-shadow:0 4px 16px rgba(14,165,233,.3)}
.cta-banner .btn-primary:hover{background:#0284c7;transform:translateY(-2px)}

/* FOOTER */
footer{background:var(--navy);padding:60px 5% 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;max-width:1200px;margin:0 auto}
.footer-brand p{color:rgba(255,255,255,.45);font-size:13.5px;line-height:1.7;margin-top:14px}
.footer-socials{display:flex;gap:8px;margin-top:18px}
.social-btn{width:36px;height:36px;border-radius:8px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.55);font-size:16px;text-decoration:none;transition:all .2s}
.social-btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:9px}
.footer-col a{color:rgba(255,255,255,.45);text-decoration:none;font-size:13.5px;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{max-width:1200px;margin:36px auto 0;padding-top:22px;border-top:1px solid rgba(255,255,255,.07);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.footer-bottom p{color:rgba(255,255,255,.3);font-size:12px}

/* RESPONSIVE */
@media(max-width:768px){
  nav{padding:0 4%}.nav-inner{height:60px}.nav-links{display:none}.nav-cta{display:none}.hamburger{display:flex}
  .proj-hero{padding:80px 4% 40px}.proj-hero h1{font-size:clamp(22px,5vw,32px)}.proj-hero p{font-size:14px}
  .stats-inner{gap:16px}.stat-item .num{font-size:22px}
  .filter-tabs{gap:8px}.filter-tab{padding:8px 16px;font-size:13px}
  .proj-grid{grid-template-columns:1fr;gap:16px}
  .category-title{font-size:18px}
  .footer-grid{grid-template-columns:1fr}.footer-brand,.footer-col{text-align:center}.footer-socials{justify-content:center}.footer-bottom{justify-content:center;text-align:center}
}
@media(min-width:769px) and (max-width:1024px){
  .proj-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}
}
@media(max-width:480px){
  nav{padding:0 3%}.nav-inner{height:56px}
  .proj-hero{padding:70px 3% 30px}
  .proj-card-body h3{font-size:14px}.proj-card-body p{font-size:12px}
  .proj-details{grid-template-columns:1fr}
  .proj-budget{font-size:17px}
  .stats-inner{flex-direction:column;gap:12px}.stat-item .num{font-size:20px}
  .cta-banner{padding:50px 4%}
}
@media(max-width:360px){
  .proj-hero h1{font-size:20px}.proj-hero p{font-size:13px}
  .proj-card-header{flex-direction:column}.proj-budget{font-size:16px}
  .category-title{font-size:16px}
}
@media(min-width:1440px){
  .nav-inner,.filter-inner,.projects-inner,.stats-inner,.footer-grid{max-width:1320px}
}