/* ---------- Design Tokens ---------- */
:root{
  --blue: #00D4FF;
  --blue-strong:#00B8E6;
  --blue-dark:#0099FF;
  --ink:#1A1A1A;
  --ink-2:#333;
  --muted:#666;
  --bg:#ffffff;
  --bg-alt:#f8f9fa;
  --panel:#ffffff;
  --shadow-1: 0 5px 20px rgba(0,0,0,.08);
  --shadow-2: 0 10px 30px rgba(0,0,0,.10);
  --shadow-3: 0 20px 40px rgba(0,0,0,.12);
  --radius-lg: 15px;
  --radius-xl: 25px;
}

/* ---------- Base Reset ---------- */
*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  line-height:1.6;
  color:var(--ink-2);
  background:var(--bg);
  overflow-x:hidden;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }

.container,.nav-container,.hero-container{
  max-width:1200px;
  margin-inline:auto;
  padding-inline:20px;
}

/* Better focus outlines */
:focus-visible{
  outline:3px solid var(--blue);
  outline-offset:3px;
  border-radius:8px;
}

/* Skip link */
.skip-link{
  position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{
  position:fixed; left:20px; top:20px; width:auto; height:auto; padding:.6rem .9rem;
  background:var(--ink); color:#fff; border-radius:10px; z-index:1100;
}

/* ---------- Navigation ---------- */
.navbar{
  position:fixed; inset-block-start:0; width:100%;
  background:rgba(255,255,255,.90);
  backdrop-filter:saturate(140%) blur(8px);
  z-index:1000; transition:box-shadow .2s ease, background .2s ease;
}
.nav-container{
  display:flex; align-items:center; justify-content:space-between; height:80px;
}
.logo-img{ height:40px; width:auto; }

.primary-nav{ display:flex; align-items:center; gap:16px; }

.nav-menu{
  display:flex; list-style:none; align-items:center; gap:28px; margin:0; padding:0;
}
.nav-link{
  position:relative; text-decoration:none; color:var(--ink-2); font-weight:600;
  transition:color .2s ease;
}
.nav-link:hover{ color:var(--blue); }
.nav-link::after{
  content:""; position:absolute; inset-inline-start:0; inset-block-end:-6px; height:2px; width:0;
  background:var(--blue); transition:width .2s ease;
}
.nav-link:hover::after{ width:100%; }

.btn-quote{
  background:var(--blue); color:#fff; padding:10px 20px; border-radius:25px; font-weight:700;
}
.btn-quote:hover{ background:var(--blue-dark); transform:translateY(-1px); }
.btn-quote::after{ display:none; }

/* Hamburger */
.hamburger{
  display:none; flex-direction:column; gap:6px; border:none; background:transparent; cursor:pointer;
}
.bar{ width:26px; height:3px; background:var(--ink-2); transition:.3s; border-radius:2px; }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:100vh; 
  padding-top:80px;
  display:flex; 
  align-items:center;
  overflow:hidden;
}

.hero-background{
  position:absolute;
  top:0; left:0; right:0; bottom:0;
  z-index:-2;
}

.hero-image{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
}

.hero-overlay{
  position:absolute;
  top:0; left:0; right:0; bottom:0;
  background:linear-gradient(135deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.6) 100%);
  z-index:-1;
}

.hero-container{
  position:relative;
  z-index:1;
  text-align:center;
}

.hero-content{
  max-width:800px;
  margin:0 auto;
}

.hero-title{
  font-size:clamp(2.5rem, 4vw + 1rem, 4rem);
  font-weight:800; 
  color:#ffffff;
  letter-spacing:-0.02em; 
  margin:0 0 20px;
  text-shadow:2px 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle{
  font-size:1.2rem; 
  color:#ffffff; 
  margin:0 0 32px; 
  line-height:1.8;
  text-shadow:1px 1px 2px rgba(0,0,0,0.3);
  opacity:0.95;
}

.hero-buttons{ 
  display:flex; 
  gap:20px; 
  flex-wrap:wrap; 
  justify-content:center;
}

.btn{
  display:inline-block; padding:14px 28px; border-radius:30px; font-weight:700;
  text-decoration:none; text-align:center; border:2px solid transparent; cursor:pointer;
  transition:transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary{ 
  background:var(--blue); 
  color:#fff; 
  box-shadow:0 8px 24px rgba(0,212,255,.35); 
}
.btn-primary:hover{ 
  background:var(--blue-dark); 
  transform:translateY(-2px); 
  box-shadow:0 12px 32px rgba(0,212,255,.45);
}
.btn-secondary{ 
  background:rgba(255,255,255,0.15); 
  color:#ffffff; 
  border-color:rgba(255,255,255,0.8);
  backdrop-filter:blur(10px);
}
.btn-secondary:hover{ 
  background:rgba(255,255,255,0.95); 
  color:var(--ink); 
  transform:translateY(-2px); 
}
.btn-outline{ background:transparent; color:var(--blue); border-color:var(--blue); }
.btn-outline:hover{ background:var(--blue); color:#fff; }
.btn-large{ padding:18px 36px; font-size:1.05rem; }

/* ---------- Sections ---------- */
.section-header{ text-align:center; margin-bottom:56px; }
.section-header h2{
  font-size:clamp(1.6rem, 1.2rem + 2vw, 2.5rem);
  margin:0 0 12px; color:var(--ink); font-weight:800; letter-spacing:-.01em;
}
.section-header p{ color:var(--muted); max-width:800px; margin:0 auto; }

.services{ padding:96px 0; background:var(--bg); }
.services-grid{
  display:grid; 
  grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); 
  gap:32px;
}
.service-card{
  background:#f8fafc; padding:32px 26px; border-radius:var(--radius-lg); text-align:center;
  border:2px solid transparent; transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.service-card:hover{ transform:translateY(-8px); border-color:var(--blue); box-shadow:0 20px 40px rgba(0,212,255,.12); }
.service-icon{ font-size:2.6rem; margin-bottom:14px; }
.service-card h3{ margin:0 0 8px; font-size:1.35rem; color:var(--ink); font-weight:800; }
.service-card p{ margin:0; color:var(--muted); }

.projects{ padding:96px 0; background:var(--bg-alt); }
.projects-grid{
  display:grid; grid-template-columns:repeat(auto-fit, minmax(340px, 1fr)); gap:28px; margin-bottom:44px;
}
.project-card{
  background:#fff; border-radius:var(--radius-lg); overflow:hidden;
  box-shadow:var(--shadow-1); transition:transform .2s ease, box-shadow .2s ease;
}
.project-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-3); }
.project-image{ height:250px; background:#e0e7ef; display:flex; align-items:center; justify-content:center; color:#98a2b3; }
.project-image img{ width:100%; height:100%; object-fit:cover; }
.project-info{ padding:22px; }
.project-info h3{ margin:0 0 6px; color:var(--ink); font-size:1.2rem; font-weight:800; }
.project-info p{ margin:0; color:var(--muted); }
.project-card.hidden{ display:none; }
.projects-button{ text-align:center; }

.about{ padding:96px 0; background:#fff; }
.about-features{
  display:grid; 
  grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); 
  gap:32px;
}
.feature{ 
  display:flex; 
  align-items:flex-start; 
  gap:16px; 
  padding:20px;
  background:#f8fafc;
  border-radius:var(--radius-lg);
  transition:transform .2s ease, box-shadow .2s ease;
}
.feature:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-1);
}
.feature-icon{ font-size:2rem; color:var(--blue); flex-shrink:0; }
.feature-text h3{ margin:0 0 6px; color:var(--ink); font-size:1.2rem; font-weight:800; }
.feature-text p{ margin:0; color:var(--muted); }

.contact{ padding:96px 0; background:var(--bg-alt); }
.contact-content{
  display:grid; grid-template-columns:2fr 1fr; gap:52px; align-items:center;
}
.contact-info{
  display:grid; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); gap:24px;
}
.contact-card{
  background:#fff; padding:26px; border-radius:var(--radius-lg); text-align:center;
  box-shadow:var(--shadow-1); transition:transform .2s ease, box-shadow .2s ease;
}
.contact-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-2); }
.contact-icon{ font-size:2.2rem; color:var(--blue); margin-bottom:10px; }
.contact-details h3{ margin:0 0 6px; color:var(--ink); font-weight:800; }
.contact-details p{ margin:0; color:var(--muted); }
.contact-details a{ color:var(--blue); font-weight:700; text-decoration:none; }
.contact-details a:hover{ color:var(--blue-dark); }
.contact-cta{ text-align:center; }

.footer{ background:var(--ink); color:#fff; padding:48px 0 28px; }
.footer-content{
  display:flex; align-items:center; justify-content:space-between; gap:24px; margin-bottom:24px;
}
.footer-logo .logo-img{ height:50px; filter:brightness(0) invert(1); }
.footer-info h3{ color:var(--blue); margin:0 0 10px; font-size:1.35rem; font-weight:800; }
.footer-info p{ margin:0 0 6px; color:#d0d0d0; }
.footer-info a{ color:var(--blue); font-weight:700; text-decoration:none; }
.footer-info a:hover{ color:var(--blue-dark); }
.footer-bottom{ text-align:center; padding-top:24px; border-top:1px solid #333; color:#b3b3b3; }

/* ---------- Motion / Visibility ---------- */
html{ scroll-behavior:smooth; }
.fade-in{ opacity:0; transform:translateY(28px); transition:opacity .6s ease, transform .6s ease; }
.fade-in.visible{ opacity:1; transform:translateY(0); }

@media (prefers-reduced-motion: reduce){
  *{ scroll-behavior:auto !important; }
  .fade-in, .fade-in.visible{ transition:none; transform:none; opacity:1; }
  .btn, .service-card, .project-card{ transition:none; }
}

/* ---------- Active Link State (JS adds .active) ---------- */
.nav-link.active{ color:var(--blue) !important; }
.nav-link.active::after{ width:100% !important; }

/* ---------- Responsive ---------- */
@media (max-width: 992px){
  .hero-container{ text-align:center; }
  .hero-buttons{ justify-content:center; }
  .contact-content{ grid-template-columns:1fr; gap:36px; }
  .about-features{ grid-template-columns:repeat(auto-fit, minmax(250px, 1fr)); }
}

@media (max-width: 768px){
  .hamburger{ display:flex; }
  .nav-menu{
    position:fixed; left:-100%; top:80px; right:0;
    flex-direction:column; background:#fff; width:100%;
    text-align:center; transition:left .25s ease; box-shadow:0 10px 27px rgba(0,0,0,.05);
    padding:26px 0; gap:18px; z-index:999;
  }
  .nav-menu.active{ left:0; }

  .hamburger[aria-expanded="true"] .bar:nth-child(2){ opacity:0; }
  .hamburger[aria-expanded="true"] .bar:nth-child(1){ transform:translateY(9px) rotate(45deg); }
  .hamburger[aria-expanded="true"] .bar:nth-child(3){ transform:translateY(-9px) rotate(-45deg); }

  .services-grid{ grid-template-columns:repeat(auto-fit, minmax(250px, 1fr)); }
  .projects-grid{ grid-template-columns:1fr; }
  .about-features{ grid-template-columns:1fr; gap:24px; }
  .contact-info{ grid-template-columns:1fr; }
  .footer-content{ flex-direction:column; text-align:center; }
  
  .hero-buttons{ 
    flex-direction:column; 
    align-items:center; 
    gap:16px;
  }
  .btn{ 
    min-width:200px; 
  }
}

@media (max-width: 480px){
  .btn{ padding:12px 22px; font-size:.95rem; }
  .btn-large{ padding:14px 28px; }
  .service-card, .contact-card{ padding:24px; }
  .project-info{ padding:18px; }
  .feature{ padding:16px; }
  .services-grid{ grid-template-columns:1fr; }
}

/* Give sections top offset so anchor links account for fixed header */
section[id]{ scroll-margin-top: 90px; }