:root {
  --bg: #0b1220;
  --card: #1e293b;
  --card-hover: #334155;
  --muted: #94a3b8;
  --text: #f1f5f9;
  --brand: #0ea5e9;
  --brand-600: #0284c7;
  --brand-hover: #0369a1;
  --accent: #22c55e;
  --accent-hover: #16a34a;
  --print-primary: #1e40af;
  --radius: 16px;
  --shadow: 0 20px 40px rgba(14,165,233,0.15);
  --shadow-lg: 0 25px 50px rgba(14,165,233,0.25);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: 
    radial-gradient(1400px 800px at 15% -5%, rgba(14,165,233,.08), transparent 40%),
    radial-gradient(1200px 900px at 85% -10%, rgba(34,197,94,.06), transparent 45%),
    radial-gradient(800px 600px at 50% 100%, rgba(14,165,233,.04), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, #0f1629 50%, var(--bg) 100%);
  line-height: 1.65;
  overflow-x: hidden;
}

.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(180%) blur(10px);
  background: rgba(11, 18, 32, 0.7);
  border-bottom: 1px solid rgba(148,163,184,0.12);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 0;
}
.logo { display: inline-flex; align-items: center; gap: .5rem; color: var(--text); text-decoration: none; font-weight: 700; }
.logo-mark { filter: drop-shadow(0 2px 6px rgba(14,165,233,.4)); border-radius: 6px; }
.logo-text { letter-spacing: .2px; }

.primary-nav { display: flex; gap: 1rem; align-items: center; }
.primary-nav a { color: var(--text); text-decoration: none; opacity: .9; padding: .4rem .75rem; border-radius: 999px; }
.primary-nav a:hover { background: rgba(148,163,184,.12); }

.nav-toggle { display: none; font-size: 1.25rem; background: transparent; color: var(--text); border: 1px solid rgba(148,163,184,.3); padding: .4rem .6rem; border-radius: 8px; }

/* Hero */
.hero {
  padding: 6rem 0 4rem;
  background:
    radial-gradient(600px 300px at 30% 20%, rgba(14,165,233,.12), transparent 70%),
    radial-gradient(500px 250px at 70% 10%, rgba(34,197,94,.08), transparent 70%);
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(14,165,233,.02), rgba(34,197,94,.02));
  pointer-events: none;
}
.hero-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}
.hero h1 { 
  font-size: clamp(2rem, 5vw, 3.5rem); 
  margin: 0 0 .75rem; 
  line-height: 1.1; 
  background: linear-gradient(135deg, var(--text), var(--brand));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}
.hero p { 
  color: var(--muted); 
  font-size: 1.2rem; 
  margin: 0 0 2rem; 
  font-weight: 500;
}
.hero-ctas { 
  display: inline-flex; 
  gap: 1rem; 
  flex-wrap: wrap;
  justify-content: center;
}

.btn { 
  display: inline-flex; 
  align-items: center;
  padding: .8rem 1.5rem; 
  border-radius: 12px; 
  color: var(--text); 
  text-decoration: none; 
  border: 2px solid rgba(148,163,184,.2); 
  transition: all .3s ease; 
  font-weight: 500;
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.1), transparent);
  transition: left .5s ease;
}
.btn:hover::before {
  left: 100%;
}
.btn:hover { 
  transform: translateY(-2px); 
  border-color: rgba(148,163,184,.4); 
  background: rgba(148,163,184,.08); 
  box-shadow: 0 8px 25px rgba(14,165,233,.15);
}
.btn.primary { 
  background: linear-gradient(135deg, var(--brand), var(--brand-600)); 
  border: 2px solid var(--brand); 
  box-shadow: var(--shadow);
  color: white;
  font-weight: 600;
}
.btn.primary:hover { 
  background: linear-gradient(135deg, var(--brand-hover), var(--brand)); 
  box-shadow: var(--shadow-lg);
  border-color: var(--brand-hover);
}

/* Print button enhanced styles */
.print-btn { 
  background: linear-gradient(135deg, var(--print-primary), #1e3a8a); 
  border: 2px solid var(--print-primary); 
  gap: .6rem; 
  position: relative;
  overflow: hidden;
}
.print-btn:hover { 
  background: linear-gradient(135deg, #1e40af, var(--print-primary)); 
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(30,64,175,.25);
}
.print-icon { 
  font-size: 1.1rem; 
  animation: printPulse 2s infinite;
}
@keyframes printPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* Sections */
.section { 
  padding: 4rem 0; 
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease forwards;
}
.section:nth-child(2) { animation-delay: 0.2s; }
.section:nth-child(3) { animation-delay: 0.4s; }
.section:nth-child(4) { animation-delay: 0.6s; }
.section:nth-child(5) { animation-delay: 0.8s; }

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section.alt { 
  background: linear-gradient(180deg, rgba(2,132,199,.06), transparent 70%); 
  border-block: 1px solid rgba(148,163,184,.08); 
  position: relative;
}
.section.alt::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(14,165,233,.02), rgba(34,197,94,.02));
  pointer-events: none;
}

.section h2 { 
  font-size: clamp(1.5rem, 3.5vw, 2.2rem); 
  margin: 0 0 1rem; 
  background: linear-gradient(135deg, var(--text), var(--brand));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}
.section h2::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  border-radius: 2px;
}

.section p { 
  margin: 0 0 1.2rem; 
  color: #cbd5e1; 
  font-size: 1.05rem;
  line-height: 1.7;
}

.grid { display: grid; gap: 1.25rem; }
.two-col { grid-template-columns: 1.5fr 1fr; }

.card { 
  background: var(--card); 
  border: 1px solid rgba(148,163,184,.12); 
  border-radius: var(--radius); 
  padding: 1.5rem; 
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(14,165,233,.05), rgba(34,197,94,.05));
  opacity: 0;
  transition: opacity 0.4s ease;
}
.card:hover::before {
  opacity: 1;
}
.card:hover {
  transform: translateY(-5px);
  border-color: rgba(14,165,233,.3);
  background: var(--card-hover);
}

.highlight { 
  box-shadow: 0 12px 40px rgba(14,165,233,.2); 
  border-color: rgba(14,165,233,.3);
  background: linear-gradient(135deg, rgba(14,165,233,.1), rgba(34,197,94,.05));
}

/* Products */
.products-grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
  gap: 1.5rem; 
  margin: 2.5rem 0; 
}
.product-card { 
  background: var(--card); 
  border: 1px solid rgba(148,163,184,.12); 
  border-radius: var(--radius); 
  padding: 1.25rem; 
  text-align: center; 
  transition: all .4s ease; 
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(14,165,233,.08), rgba(34,197,94,.05));
  opacity: 0;
  transition: opacity 0.4s ease;
}
.product-card:hover::before {
  opacity: 1;
}
.product-card:hover { 
  transform: translateY(-8px) scale(1.02); 
  box-shadow: 0 20px 40px rgba(14,165,233,.25); 
  border-color: rgba(14,165,233,.4); 
  background: var(--card-hover);
}
.product-card img { 
  width: 100%; 
  height: 220px; 
  object-fit: cover; 
  border-radius: 12px; 
  margin-bottom: 1rem; 
  transition: transform .4s ease;
}
.product-card:hover img {
  transform: scale(1.05);
}
.product-card h3 { 
  font-size: 1.2rem; 
  margin: 0 0 .75rem; 
  color: var(--text); 
  position: relative;
  z-index: 1;
}
.product-card p { 
  font-size: .95rem; 
  color: var(--muted); 
  margin: 0; 
  line-height: 1.5; 
  position: relative;
  z-index: 1;
}
.products-cta { 
  text-align: center; 
  margin-top: 3rem; 
  display: flex; 
  gap: 1rem; 
  justify-content: center; 
}

/* Contact */
.contact-list { list-style: none; padding: 0; margin: 0 0 1rem; }
.contact-list li { margin: .25rem 0; }
.map { width: 100%; height: 280px; border: 0; border-radius: 12px; box-shadow: 0 6px 20px rgba(2,132,199,.18); }

/* Footer */
.site-footer { border-top: 1px solid rgba(148,163,184,.12); padding: 1.25rem 0; background: rgba(11,18,32,.6); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.footer-nav { display: flex; gap: .75rem; }
.footer-nav a { color: var(--muted); text-decoration: none; }
.footer-nav a:hover { color: var(--text); }

/* Responsive */
@media (max-width: 820px) {
  .two-col { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
}
@media (max-width: 680px) {
  .products-grid { grid-template-columns: 1fr; }
  .products-cta { flex-direction: column; align-items: center; }
  .primary-nav { display: none; position: absolute; right: 1rem; top: 3.1rem; background: rgba(15,23,42,.98); border: 1px solid rgba(148,163,184,.12); padding: .5rem; border-radius: 10px; flex-direction: column; }
  .primary-nav.open { display: flex; }
  .nav-toggle { display: inline-block; }
}

/* Print Styles */
@media print {
  * { -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important; }
  
  body { 
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%) !important; 
    color: #1a1a1a !important; 
    font-size: 11pt; 
    line-height: 1.4; 
    margin: 0;
    padding: 20px;
  }
  
  .site-header, .nav-toggle, .hero-ctas, .site-footer, .map, .products-cta { display: none !important; }
  
  /* Print Header */
  .hero::before {
    content: 'CÔNG TY TNHH SNAP KITCHEN';
    display: block;
    font-size: 20pt;
    font-weight: bold;
    text-align: center;
    color: white !important;
    background: linear-gradient(135deg, #0ea5e9, #0284c7) !important;
    padding: 15pt;
    margin: -20px -20px 20pt -20px;
    border-radius: 0 0 15px 15px;
    box-shadow: 0 4px 15px rgba(14,165,233,0.3) !important;
  }
  
  .hero {
    padding: 0;
    background: linear-gradient(135deg, rgba(14,165,233,0.1), rgba(34,197,94,0.05)) !important;
    page-break-after: avoid;
    border-radius: 10px;
    padding: 15pt;
    margin-bottom: 15pt;
  }
  
  .hero h1 { 
    font-size: 16pt; 
    margin: 0 0 8pt; 
    color: #0ea5e9 !important; 
    text-align: center;
    font-weight: bold;
  }
  
  .hero p { 
    font-size: 12pt; 
    color: #1e40af !important; 
    margin: 0 0 15pt;
    text-align: center;
    font-weight: 500;
  }
  
  .section { 
    padding: 15pt; 
    break-inside: avoid; 
    margin-bottom: 15pt;
    background: white !important;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1) !important;
    border-left: 4px solid #0ea5e9 !important;
  }
  
  .section.alt {
    background: linear-gradient(135deg, rgba(14,165,233,0.08), rgba(34,197,94,0.05)) !important;
    border-left: 4px solid #22c55e !important;
  }
  
  .section h2 { 
    font-size: 14pt; 
    color: #0ea5e9 !important; 
    margin: 0 0 10pt; 
    border-bottom: 2px solid #0ea5e9 !important; 
    padding-bottom: 6pt;
    page-break-after: avoid;
    font-weight: bold;
  }
  
  .section p { 
    font-size: 10pt; 
    color: #1a1a1a !important; 
    margin: 0 0 8pt; 
    text-align: justify;
    line-height: 1.5;
  }
  
  .card { 
    border: 2px solid #0ea5e9 !important; 
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe) !important; 
    padding: 12pt; 
    margin: 10pt 0; 
    break-inside: avoid;
    border-radius: 8px;
  }
  
  .card h3 { 
    font-size: 12pt; 
    color: #0284c7 !important; 
    margin: 0 0 6pt; 
    font-weight: bold;
  }
  
  .contact-list { margin: 0; padding: 0; }
  .contact-list li { 
    margin: 5pt 0; 
    font-size: 10pt; 
    list-style: none;
    padding: 4pt 8pt;
    background: rgba(14,165,233,0.1) !important;
    border-radius: 4px;
    margin-bottom: 3pt;
  }
  
  .contact-list li::before {
    content: '📍 ';
    margin-right: 5pt;
  }
  
  .contact-list li:nth-child(3)::before { content: '📧 '; }
  .contact-list li:nth-child(4)::before { content: '📞 '; }
  
  /* Products in print */
  .products-grid { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr); 
    gap: 10pt; 
    margin: 15pt 0;
    padding: 10pt;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9) !important;
    border-radius: 8px;
  }
  
  .product-card { 
    border: 1px solid #0ea5e9 !important; 
    background: white !important; 
    padding: 10pt; 
    text-align: center;
    break-inside: avoid;
    border-radius: 6px;
    box-shadow: 0 2px 4px rgba(14,165,233,0.2) !important;
  }
  
  .product-card img { 
    width: 60pt; 
    height: 45pt; 
    object-fit: cover; 
    border-radius: 4pt;
    margin-bottom: 6pt;
    border: 1px solid #e2e8f0 !important;
  }
  
  .product-card h3 { 
    font-size: 9pt; 
    margin: 0 0 4pt; 
    color: #0284c7 !important;
    font-weight: bold;
  }
  
  .product-card p { 
    font-size: 8pt; 
    margin: 0; 
    color: #4a5568 !important;
  }
  
  .grid.two-col { display: block; }
  .grid.two-col > div:first-child { margin-bottom: 15pt; }
  
  a { color: #0ea5e9 !important; text-decoration: none; font-weight: 500; }
  a[href^="tel:"] { 
    background: linear-gradient(135deg, #0ea5e9, #0284c7) !important;
    color: white !important;
    padding: 2pt 6pt;
    border-radius: 4px;
    text-decoration: none;
  }
  a[href^="mailto:"] { 
    background: linear-gradient(135deg, #22c55e, #16a34a) !important;
    color: white !important;
    padding: 2pt 6pt;
    border-radius: 4px;
    text-decoration: none;
  }
  
  /* Print footer */
  .container::after {
    content: 'Ngày in: ' attr(data-print-date) ' | www.snapkitchen.vn | SnapBee Việt Nam';
    display: block;
    text-align: center;
    font-size: 8pt;
    color: white !important;
    background: linear-gradient(135deg, #6b7280, #4b5563) !important;
    padding: 8pt;
    margin: 20pt -20px -20px -20px;
    border-radius: 8px 8px 0 0;
  }
}