/* Global Styles for VVS Infotech website
   Primary Color: #e50914 (dark red)
   Secondary Color: #101820 (dark gray)
   Background: #f8f9fa (light gray)
   Fonts: Poppins (headings), Inter (body)
*/

/* Reset / base */
:root{
  --primary: #e50914;
  --secondary: #101820;
  --bg: #f8f9fa;
  --muted: #6c757d;
  --max-width: 1200px;
  --radius: 10px;
  --transition: 0.22s ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color: var(--secondary);
  background: #fff;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height: 1.6;
}

/* Utility */
.container {
  width: 92%;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid #ececec;
  z-index: 60;
}
.header-inner {
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
}

/* Brand */
.brand {
  font-family: "Poppins", sans-serif;
  font-weight:700;
  font-size:1.1rem;
  color:var(--secondary);
  text-decoration:none;
}

/* Navigation */
.nav ul {
  display:flex;
  align-items:center;
  gap: 18px;
  list-style:none;
  margin:0;
  padding:0;
}
.nav a {
  color:var(--secondary);
  text-decoration:none;
  padding:8px 10px;
  border-radius:6px;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.nav a:hover { background: rgba(229,9,20,0.06); color:var(--primary); transform: translateY(-2px); }
.nav a.active { color:var(--primary); font-weight:600; }

/* Buttons */
.btn {
  display:inline-block;
  text-decoration:none;
  padding:10px 16px;
  border-radius:8px;
  font-weight:600;
  cursor:pointer;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border: none;
}
.btn-outline {
  background: transparent;
  border: 1px solid #ddd;
  color: var(--secondary);
}
.btn-sm {
  padding:8px 12px;
  font-size:0.9rem;
}

/* Nav toggle (mobile) */
.nav-toggle {
  display:none;
  background:transparent;
  border:0;
}
.hamburger, .hamburger::before, .hamburger::after {
  width:22px; height:2px; background:var(--secondary); display:block; border-radius:2px; position:relative;
}
.hamburger::before, .hamburger::after { content:''; position:absolute; left:0; transition: transform .2s ease; }
.hamburger::before { top:-7px; }
.hamburger::after { top:7px; }

/* Hero */
.hero {
  padding-top:94px; /* for fixed header */
  background: linear-gradient(180deg, #fff 0%, #fbfbfb 100%);
  padding-bottom: 48px;
}
.hero-grid {
  display:grid;
  grid-template-columns: 1fr 540px;
  gap: 28px;
  align-items:center;
  padding: 56px 0;
}
.hero h1 {
  font-family: "Poppins", sans-serif;
  font-weight:700;
  color:var(--secondary);
  font-size: clamp(1.6rem, 3.2vw, 2.6rem);
  margin: 0 0 12px;
}
.lead { color:var(--muted); font-size:1.05rem; margin:0 0 18px; }

.hero-media img { width:100%; border-radius:12px; box-shadow: 0 10px 26px rgba(16,24,32,0.06); }

/* Trust list */
.trust-list { list-style:none; display:flex; gap:14px; padding:0; margin-top:18px; color:var(--muted); }
.trust-list li { font-weight:600; }

/* Intro & sections */
.section-sub { color:var(--muted); margin-top:6px; margin-bottom:18px; }
.intro { padding-top:36px; padding-bottom:8px; }

/* Cards & grids */
.grid { display:grid; gap:20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; padding: 28px 0; }
  .hero { padding-top:84px; }
}

/* Service cards */
.card, .service-card {
  background: #fff;
  border:1px solid #f0f0f0;
  padding:20px;
  border-radius:12px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover, .service-card:hover { transform: translateY(-6px); box-shadow: 0 10px 24px rgba(16,24,32,0.06); }
.card .icon { font-size:28px; margin-bottom:10px; }
.service-card { display:flex; gap:18px; align-items:flex-start; }
.service-media { font-size:34px; }

/* Portfolio projects */
.project, .project-card { position:relative; overflow:hidden; border-radius:10px; }
.project img, .project-thumb img { width:100%; height:auto; display:block; transition: transform var(--transition); }
.project figcaption { padding:12px 8px; }
.projects .project { border:1px solid #f0f0f0; }
.project-thumb { position:relative; border-radius:10px; overflow:hidden; }
.project-thumb .overlay {
  position:absolute; inset:0; display:flex; flex-direction:column; justify-content:flex-end; padding:18px;
  background: linear-gradient(0deg, rgba(16,24,32,0.68), rgba(16,24,32,0.18));
  color:#fff; opacity:0; transform: translateY(8px); transition: opacity var(--transition), transform var(--transition);
}
.project-thumb:hover img { transform: scale(1.05); }
.project-thumb:hover .overlay { opacity:1; transform: translateY(0); }

/* CTA */
.cta { background: var(--bg); margin-top:28px; padding:28px 0; border-radius:12px; }
.cta-inner { display:flex; align-items:center; justify-content:space-between; gap:18px; }
.cta h3 { margin:0; font-family:"Poppins",sans-serif; }
@media (max-width:900px) { .cta-inner { flex-direction:column; text-align:center; } }

/* Page hero (for inner pages) */
.page-hero { padding-top:94px; padding-bottom:36px; background: #fff; }
.page-hero h1 { font-family:"Poppins",sans-serif; margin-bottom:6px; }

/* Content layout */
.content { padding:12px 0 28px; }
.about-grid aside { background:#fff; padding:18px; border-radius:10px; border:1px solid #f0f0f0; }

/* Contact layout */
.contact-grid { display:grid; grid-template-columns: 1fr 480px; gap:28px; padding:28px 0 60px; }
@media (max-width: 980px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-form form { display:flex; flex-direction:column; gap:10px; }
.contact-form input[type="text"], .contact-form input[type="email"], .contact-form input[type="tel"], .contact-form textarea {
  padding:10px 12px; border-radius:8px; border:1px solid #e6e6e6; font-size:1rem; width:100%;
}
.contact-form label { font-weight:600; font-size:0.9rem; }

/* Footer */
.site-footer { background:#101820; color:#fff; padding:32px 0 16px; margin-top:40px; }
.footer-grid { display:grid; grid-template-columns: 1fr 1fr 1fr; gap:18px; align-items:start; }
.footer-brand { color:#fff; font-family:"Poppins",sans-serif; }
.footer-links { list-style:none; padding:0; margin:0; }
.footer-links li { margin-bottom:8px; }
.footer-links a { color:#ddd; text-decoration:none; }
.muted { color:var(--muted); }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.06); margin-top:20px; padding-top:12px; text-align:center; color:#cfcfcf; }

/* Small helpers */
.center { text-align:center; margin:18px 0; }
.small { font-size:0.9rem; color:var(--muted); }

/* Responsive header: mobile navigation */
@media (max-width: 880px) {
  .nav { position:fixed; inset:64px 12px auto auto; right:12px; background:#fff; border-radius:10px; box-shadow: 0 8px 26px rgba(16,24,32,0.08); transform-origin: top right; }
  .nav ul { flex-direction: column; padding:12px; }
  .nav-toggle { display:block; }
  .nav { display:none; }
  .nav.open { display:block; }
}

/* Accessibility focus */
a:focus, button:focus, input:focus, textarea:focus { outline: 3px solid rgba(229,9,20,0.16); outline-offset:2px; }

/* Small animations */
@media (prefers-reduced-motion: no-preference) {
  .card, .service-card, .project-thumb { transition: transform .24s cubic-bezier(.2,.9,.2,1), box-shadow .24s; }
}