/* ═══════════════════════════════════════════
   SlingSoft Systems Limited — Design System
   Colors: #1e4899 (Blue) | #ffbd59 (Gold)
   ═══════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

:root {
  --blue: #1e4899;
  --blue-dark: #142f66;
  --blue-deeper: #0c1d42;
  --blue-light: #2a5ec0;
  --gold: #ffbd59;
  --gold-light: #ffd68a;
  --gold-dark: #e6a340;
  --white: #ffffff;
  --gray-50: #f8f9fc;
  --gray-100: #eef1f6;
  --gray-200: #d8dde8;
  --gray-600: #5a6378;
  --gray-800: #1f2937;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(14,25,50,.12);
  --shadow-lg: 0 24px 64px rgba(14,25,50,.18);
  --transition: .35s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}
h1,h2,h3,h4,h5,h6 { font-family:'Space Grotesk','Inter',sans-serif; line-height:1.2; }
a { text-decoration:none; color:inherit; }
img { max-width:100%; display:block; }
.container { max-width:1200px; margin:0 auto; padding:0 24px; }

/* ── Buttons ── */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:14px 32px; border-radius:50px; font-weight:600;
  font-size:.95rem; cursor:pointer; border:none;
  transition: var(--transition); letter-spacing:.3px;
}
.btn-primary {
  background: var(--gold); color: var(--blue-dark);
  box-shadow: 0 4px 20px rgba(255,189,89,.35);
}
.btn-primary:hover { background: var(--gold-light); transform:translateY(-2px); box-shadow:0 8px 30px rgba(255,189,89,.45); }
.btn-outline {
  background:transparent; color:var(--white);
  border:2px solid rgba(255,255,255,.35);
}
.btn-outline:hover { border-color:var(--gold); color:var(--gold); background:rgba(255,189,89,.08); }
.btn-blue { background:var(--blue); color:#fff; box-shadow:0 4px 20px rgba(30,72,153,.3); }
.btn-blue:hover { background:var(--blue-light); transform:translateY(-2px); }

/* ── HEADER ── */
.site-header {
  position:fixed; top:0; left:0; right:0; z-index:1000;
  padding:16px 0; transition:var(--transition);
}
.site-header.scrolled {
  background:rgba(12,29,66,.95); backdrop-filter:blur(20px);
  box-shadow:0 4px 30px rgba(0,0,0,.2); padding:10px 0;
}
.header-inner {
  display:flex; align-items:center; justify-content:space-between;
}
.logo img { height:44px; }
.nav-links { display:flex; gap:32px; list-style:none; }
.nav-links a {
  color:rgba(255,255,255,.8); font-weight:500; font-size:.9rem;
  position:relative; transition:var(--transition);
}
.nav-links a::after {
  content:''; position:absolute; bottom:-4px; left:0;
  width:0; height:2px; background:var(--gold);
  transition:var(--transition);
}
.nav-links a:hover { color:#fff; }
.nav-links a:hover::after { width:100%; }
.header-cta .btn { padding:10px 26px; font-size:.85rem; }
.mobile-toggle { display:none; background:none; border:none; cursor:pointer; }
.mobile-toggle span { display:block; width:24px; height:2px; background:#fff; margin:5px 0; transition:var(--transition); }

/* ── HERO ── */
.hero {
  position:relative; min-height:100vh;
  display:flex; align-items:center;
  background: linear-gradient(135deg, var(--blue-deeper) 0%, var(--blue-dark) 40%, var(--blue) 100%);
  overflow:hidden;
}
.hero-bg-image {
  position:absolute; inset:0;
  background:url('assets/images/hero-bg.png') center/cover;
  opacity:.18; mix-blend-mode:lighten;
}
.hero-particles {
  position:absolute; inset:0; overflow:hidden;
}
.hero-particles .dot {
  position:absolute; border-radius:50%;
  background:var(--gold); opacity:.15;
  animation:float-up linear infinite;
}
@keyframes float-up {
  0% { transform:translateY(100vh) scale(0); opacity:0; }
  10% { opacity:.15; }
  90% { opacity:.15; }
  100% { transform:translateY(-10vh) scale(1); opacity:0; }
}
.hero-grid {
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,189,89,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,189,89,.03) 1px, transparent 1px);
  background-size:60px 60px;
}
.hero-content { position:relative; z-index:2; padding:120px 0 80px; }
.hero-inner { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.hero-badge {
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 20px; border-radius:50px;
  background:rgba(255,189,89,.12); border:1px solid rgba(255,189,89,.25);
  color:var(--gold); font-size:.8rem; font-weight:600;
  letter-spacing:1px; text-transform:uppercase; margin-bottom:24px;
}
.hero-badge .pulse { width:8px; height:8px; border-radius:50%; background:var(--gold); animation:pulse 2s infinite; }
@keyframes pulse { 0%,100%{ box-shadow:0 0 0 0 rgba(255,189,89,.5); } 50%{ box-shadow:0 0 0 8px rgba(255,189,89,0); } }
.hero h1 { font-size:3.6rem; font-weight:800; color:#fff; margin-bottom:20px; }
.hero h1 .highlight { color:var(--gold); position:relative; }
.hero h1 .highlight::after {
  content:''; position:absolute; bottom:4px; left:0;
  width:100%; height:8px; background:rgba(255,189,89,.2);
  border-radius:4px;
}
.hero p { font-size:1.15rem; color:rgba(255,255,255,.7); margin-bottom:36px; max-width:520px; }
.hero-actions { display:flex; gap:16px; flex-wrap:wrap; }
.hero-visual { position:relative; display:flex; justify-content:center; }
.hero-visual img {
  width:100%; max-width:520px; border-radius:var(--radius);
  box-shadow:0 30px 80px rgba(0,0,0,.4);
  animation:hero-float 6s ease-in-out infinite;
}
@keyframes hero-float { 0%,100%{ transform:translateY(0); } 50%{ transform:translateY(-16px); } }
.hero-glow {
  position:absolute; width:300px; height:300px; border-radius:50%;
  background:radial-gradient(circle, rgba(255,189,89,.2), transparent 70%);
  top:50%; left:50%; transform:translate(-50%,-50%);
  filter:blur(40px); pointer-events:none;
}
.hero-stats {
  display:flex; gap:40px; margin-top:48px; padding-top:32px;
  border-top:1px solid rgba(255,255,255,.1);
}
.hero-stats .stat h3 { font-size:2rem; color:var(--gold); font-weight:800; }
.hero-stats .stat p { font-size:.8rem; color:rgba(255,255,255,.5); text-transform:uppercase; letter-spacing:1px; }

/* ── SECTION COMMON ── */
.section { padding:100px 0; }
.section-header { text-align:center; margin-bottom:64px; }
.section-badge {
  display:inline-flex; align-items:center; gap:6px;
  padding:6px 18px; border-radius:50px; font-size:.75rem;
  font-weight:700; letter-spacing:1.5px; text-transform:uppercase;
  margin-bottom:16px;
}
.section-badge.blue { background:rgba(30,72,153,.08); color:var(--blue); }
.section-badge.gold { background:rgba(255,189,89,.15); color:var(--gold-dark); }
.section-header h2 { font-size:2.6rem; font-weight:800; color:var(--blue-dark); margin-bottom:16px; }
.section-header p { font-size:1.05rem; color:var(--gray-600); max-width:600px; margin:0 auto; }

/* ── SERVICES ── */
.services { background:var(--gray-50); }
.services-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.service-card {
  background:#fff; border-radius:var(--radius); padding:40px 28px;
  text-align:center; position:relative; overflow:hidden;
  border:1px solid var(--gray-100); transition:var(--transition);
}
.service-card::before {
  content:''; position:absolute; top:0; left:0; right:0;
  height:4px; background:linear-gradient(90deg,var(--blue),var(--gold));
  transform:scaleX(0); transition:var(--transition); transform-origin:left;
}
.service-card:hover { transform:translateY(-8px); box-shadow:var(--shadow-lg); border-color:transparent; }
.service-card:hover::before { transform:scaleX(1); }
.service-icon {
  width:72px; height:72px; border-radius:var(--radius-sm);
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 24px; font-size:1.8rem;
  background:linear-gradient(135deg, rgba(30,72,153,.08), rgba(255,189,89,.08));
}
.service-card h3 { font-size:1.15rem; color:var(--blue-dark); margin-bottom:12px; }
.service-card p { font-size:.9rem; color:var(--gray-600); }
.service-card .learn-more {
  display:inline-flex; align-items:center; gap:6px;
  margin-top:20px; color:var(--blue); font-weight:600; font-size:.85rem;
  transition:var(--transition);
}
.service-card .learn-more:hover { color:var(--gold-dark); gap:10px; }

/* ── ABOUT / WHY US ── */
.about-grid { display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
.about-image { position:relative; }
.about-image img { border-radius:var(--radius); box-shadow:var(--shadow-lg); }
.about-image .accent-box {
  position:absolute; bottom:-20px; right:-20px;
  width:180px; padding:24px; background:var(--gold);
  border-radius:var(--radius-sm); text-align:center;
  box-shadow:0 12px 40px rgba(255,189,89,.3);
}
.about-image .accent-box h3 { font-size:2rem; color:var(--blue-dark); }
.about-image .accent-box p { font-size:.75rem; color:var(--blue-dark); font-weight:600; text-transform:uppercase; }
.about-text .section-badge { margin-bottom:16px; }
.about-text h2 { font-size:2.4rem; font-weight:800; color:var(--blue-dark); margin-bottom:20px; }
.about-text > p { color:var(--gray-600); margin-bottom:28px; }
.about-features { display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:32px; }
.about-feature {
  display:flex; align-items:flex-start; gap:12px;
  padding:14px; border-radius:var(--radius-sm);
  background:var(--gray-50); border:1px solid var(--gray-100);
}
.about-feature .icon {
  width:36px; height:36px; border-radius:8px;
  background:linear-gradient(135deg, var(--blue), var(--blue-light));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:.85rem; flex-shrink:0;
}
.about-feature h4 { font-size:.85rem; color:var(--blue-dark); margin-bottom:2px; }
.about-feature p { font-size:.78rem; color:var(--gray-600); }

/* ── PROCESS ── */
.process { background:linear-gradient(135deg, var(--blue-deeper), var(--blue-dark)); position:relative; overflow:hidden; }
.process .section-header h2 { color:#fff; }
.process .section-header p { color:rgba(255,255,255,.6); }
.process-bg { position:absolute; inset:0; background:url('assets/images/tech-pattern.png') center/cover; opacity:.1; }
.process-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:32px;
  position:relative; z-index:2;
}
.process-step {
  text-align:center; padding:36px 24px;
  background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius); backdrop-filter:blur(10px);
  transition:var(--transition); position:relative;
}
.process-step:hover { background:rgba(255,255,255,.08); transform:translateY(-6px); border-color:rgba(255,189,89,.2); }
.step-number {
  font-size:3rem; font-weight:900; color:rgba(255,189,89,.15);
  font-family:'Space Grotesk',sans-serif; line-height:1; margin-bottom:8px;
}
.process-step .step-icon {
  width:56px; height:56px; border-radius:50%;
  background:linear-gradient(135deg, var(--gold), var(--gold-dark));
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 20px; font-size:1.3rem; color:var(--blue-dark);
  box-shadow:0 8px 24px rgba(255,189,89,.25);
}
.process-step h3 { color:#fff; font-size:1.1rem; margin-bottom:10px; }
.process-step p { color:rgba(255,255,255,.55); font-size:.85rem; }

/* ── PORTFOLIO ── */
.portfolio-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.portfolio-card {
  border-radius:var(--radius); overflow:hidden;
  background:#fff; border:1px solid var(--gray-100);
  transition:var(--transition); position:relative;
}
.portfolio-card:hover { transform:translateY(-8px); box-shadow:var(--shadow-lg); }
.portfolio-thumb {
  height:220px; overflow:hidden; position:relative;
}
.portfolio-thumb img { width:100%; height:100%; object-fit:cover; transition:var(--transition); }
.portfolio-card:hover .portfolio-thumb img { transform:scale(1.05); }
.portfolio-overlay {
  position:absolute; inset:0;
  background:linear-gradient(to top, rgba(12,29,66,.8), transparent);
  display:flex; align-items:flex-end; padding:20px;
  opacity:0; transition:var(--transition);
}
.portfolio-card:hover .portfolio-overlay { opacity:1; }
.portfolio-overlay .tag {
  padding:4px 12px; border-radius:50px; font-size:.7rem;
  background:var(--gold); color:var(--blue-dark); font-weight:600;
}
.portfolio-info { padding:24px; }
.portfolio-info h3 { font-size:1.05rem; color:var(--blue-dark); margin-bottom:6px; }
.portfolio-info p { font-size:.85rem; color:var(--gray-600); }

/* ── TESTIMONIALS ── */
.testimonials { background:var(--gray-50); }
.testimonials-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.testimonial-card {
  background:#fff; border-radius:var(--radius); padding:36px;
  border:1px solid var(--gray-100); transition:var(--transition);
  position:relative;
}
.testimonial-card:hover { box-shadow:var(--shadow); transform:translateY(-4px); }
.testimonial-card .quote-icon {
  font-size:2.5rem; color:var(--gold); opacity:.4; line-height:1; margin-bottom:12px;
  font-family:Georgia,serif;
}
.testimonial-card p { font-size:.92rem; color:var(--gray-600); font-style:italic; margin-bottom:20px; }
.testimonial-card .stars { color:var(--gold); font-size:.85rem; margin-bottom:16px; }
.testimonial-author { display:flex; align-items:center; gap:12px; }
.testimonial-author .avatar {
  width:44px; height:44px; border-radius:50%;
  background:linear-gradient(135deg, var(--blue), var(--gold));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-weight:700; font-size:.85rem;
}
.testimonial-author h4 { font-size:.88rem; color:var(--blue-dark); }
.testimonial-author span { font-size:.75rem; color:var(--gray-600); }

/* ── CTA ── */
.cta {
  background:linear-gradient(135deg, var(--blue), var(--blue-dark));
  text-align:center; position:relative; overflow:hidden;
}
.cta::before {
  content:''; position:absolute; width:500px; height:500px;
  border-radius:50%; background:radial-gradient(circle, rgba(255,189,89,.1), transparent 70%);
  top:-200px; right:-100px;
}
.cta::after {
  content:''; position:absolute; width:400px; height:400px;
  border-radius:50%; background:radial-gradient(circle, rgba(255,189,89,.08), transparent 70%);
  bottom:-150px; left:-50px;
}
.cta-content { position:relative; z-index:2; }
.cta h2 { font-size:2.6rem; color:#fff; font-weight:800; margin-bottom:16px; }
.cta p { color:rgba(255,255,255,.7); font-size:1.1rem; margin-bottom:36px; max-width:600px; margin-left:auto; margin-right:auto; }
.cta-actions { display:flex; gap:16px; justify-content:center; }

/* ── FOOTER ── */
.site-footer {
  background:var(--blue-deeper); color:rgba(255,255,255,.6);
  padding:80px 0 0;
}
.footer-grid {
  display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:48px;
  padding-bottom:48px; border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand img { height:40px; margin-bottom:16px; }
.footer-brand p { font-size:.88rem; margin-bottom:20px; }
.footer-socials { display:flex; gap:10px; }
.footer-socials a {
  width:38px; height:38px; border-radius:50%;
  border:1px solid rgba(255,255,255,.15);
  display:flex; align-items:center; justify-content:center;
  color:rgba(255,255,255,.6); font-size:.85rem; transition:var(--transition);
}
.footer-socials a:hover { background:var(--gold); border-color:var(--gold); color:var(--blue-dark); }
.footer-col h4 {
  color:#fff; font-size:.9rem; margin-bottom:20px;
  position:relative; padding-bottom:10px;
}
.footer-col h4::after {
  content:''; position:absolute; bottom:0; left:0;
  width:30px; height:2px; background:var(--gold);
}
.footer-col ul { list-style:none; }
.footer-col li { margin-bottom:10px; }
.footer-col a { font-size:.85rem; transition:var(--transition); }
.footer-col a:hover { color:var(--gold); padding-left:4px; }
.footer-bottom {
  display:flex; justify-content:space-between; align-items:center;
  padding:24px 0; font-size:.8rem;
}

/* ── TECH STACK MARQUEE ── */
.tech-marquee {
  padding:60px 0; background:#fff;
  border-bottom:1px solid var(--gray-100);
  overflow:hidden;
}
.tech-marquee p {
  text-align:center; font-size:.75rem; color:var(--gray-600);
  text-transform:uppercase; letter-spacing:2px; font-weight:600;
  margin-bottom:32px;
}
.marquee-track {
  display:flex; gap:60px; animation:scroll-left 30s linear infinite;
}
.marquee-track .tech-item {
  flex-shrink:0; display:flex; align-items:center; gap:10px;
  color:var(--gray-200); font-size:1.4rem; font-weight:700;
  font-family:'Space Grotesk',sans-serif; white-space:nowrap;
  transition:var(--transition);
}
.marquee-track .tech-item:hover { color:var(--blue); }
@keyframes scroll-left { 0%{ transform:translateX(0); } 100%{ transform:translateX(-50%); } }

/* ── RESPONSIVE ── */
@media(max-width:1024px) {
  .hero h1 { font-size:2.8rem; }
  .services-grid, .process-grid { grid-template-columns:repeat(2,1fr); }
  .portfolio-grid, .testimonials-grid { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:repeat(2,1fr); }
}
@media(max-width:768px) {
  .nav-links, .header-cta { display:none; }
  .mobile-toggle { display:block; }
  .hero-inner { grid-template-columns:1fr; text-align:center; }
  .hero h1 { font-size:2.2rem; }
  .hero p { margin:0 auto 36px; }
  .hero-actions { justify-content:center; }
  .hero-visual { margin-top:40px; }
  .hero-stats { justify-content:center; }
  .hero-stats .stat { text-align:center; }
  .about-grid { grid-template-columns:1fr; }
  .services-grid, .process-grid { grid-template-columns:1fr; }
  .portfolio-grid, .testimonials-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap:32px; }
  .footer-bottom { flex-direction:column; gap:8px; text-align:center; }
  .cta h2 { font-size:2rem; }
  .section { padding:60px 0; }
  .section-header h2 { font-size:2rem; }
}