:root {
  --bg: #f8fafc;        
  --text: #0f172a;      
  --muted: #64748b;     
  --accent: #2563eb;    
  --accent-hover: #1d4ed8; 
  --surface: #ffffff;   
  --border: #e2e8f0;
  --font: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; scroll-behavior: smooth; overflow-x: hidden; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.6; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.text-accent { color: var(--accent); }

.site-header { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 1rem 2rem; max-width: 1200px; margin: 0 auto; }
.logo { font-weight: 800; font-size: 1.25rem; color: var(--text); letter-spacing: -0.5px; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text); }
.nav-links { list-style: none; display: flex; gap: 1.5rem; margin: 0; padding: 0; align-items: center; }
.nav-links a { font-weight: 500; color: var(--text); transition: color 0.2s; }
.nav-links a:hover { color: var(--accent); text-decoration: none; }
.nav-links .cta { background: var(--accent); color: #fff; padding: 0.5rem 1rem; border-radius: 6px; }
.nav-links .cta:hover { background: var(--accent-hover); color: #fff; }

.hero { padding: 5rem 2rem; text-align: center; background: linear-gradient(to bottom, var(--surface), var(--bg)); }
.hero-content { max-width: 800px; margin: 0 auto; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.2; margin: 1rem 0; letter-spacing: -1px; }
.hero p { color: var(--muted); font-size: 1.125rem; margin-bottom: 2rem; }
.availability { display: inline-block; padding: 0.35rem 0.85rem; background: #dbeafe; color: #1e40af; border-radius: 999px; font-size: 0.875rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; }

.btn { display: inline-block; padding: 0.75rem 1.5rem; border-radius: 8px; font-weight: 600; text-align: center; cursor: pointer; transition: all 0.2s; border: 1px solid transparent; }
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-hover); text-decoration: none; }
.btn.secondary { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn.secondary:hover { background: #f1f5f9; text-decoration: none; }
.full-width { width: 100%; }

.section { padding: 5rem 2rem; max-width: 1200px; margin: 0 auto; }
.section.alt { background: var(--surface); border-radius: 24px; border: 1px solid var(--border); margin: 2rem auto; padding: 4rem 3rem;}
h2 { font-size: 2rem; margin-top: 0; margin-bottom: 0.5rem; letter-spacing: -0.5px; }
.section-subtitle { color: var(--muted); font-size: 1.125rem; margin-bottom: 3rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.card { background: var(--surface); padding: 2rem; border: 1px solid var(--border); border-radius: 16px; box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05); transition: transform 0.2s; }
.card:hover { transform: translateY(-4px); }
.tech-card { border-top: 4px solid var(--accent); }
.card-icon { font-size: 2rem; margin-bottom: 1rem; }
.card h3 { margin-top: 0; font-size: 1.25rem; }
.bullets { margin: 1rem 0 0; padding-left: 1.25rem; color: var(--muted); }
.bullets li { margin-bottom: 0.5rem; }

.timeline { display: grid; gap: 2rem; border-left: 2px solid var(--border); padding-left: 2rem; margin-top: 2rem; }
.timeline-item { position: relative; }
.timeline-item::before { content: ''; position: absolute; left: -2.45rem; top: 0.25rem; width: 1rem; height: 1rem; background: var(--accent); border-radius: 50%; border: 4px solid var(--surface); }
.timeline-item h3 { margin: 0 0 0.5rem; color: var(--text); }
.timeline-item p { margin: 0; color: var(--muted); }

/* Pricing Grid */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; margin-top: 2rem; }
.price-card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 2.5rem 2rem; text-align: center; box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05); transition: transform 0.2s; }
.price-card:hover { transform: translateY(-4px); }
.price-card h3 { margin-top: 0; font-size: 1.25rem; color: var(--text); }
.price-card .price { font-size: 2.2rem; font-weight: 800; color: var(--accent); margin: 1rem 0; letter-spacing: -1px; }
.price-card ul { list-style: none; padding: 0; margin: 0 0 1.5rem; color: var(--muted); text-align: left; }
.price-card ul li { margin-bottom: 0.75rem; position: relative; padding-left: 1.5rem; }
.price-card ul li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: bold; }
.price-card.featured { border: 2px solid var(--accent); position: relative; transform: scale(1.02); box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.1); }
.price-card.featured:hover { transform: scale(1.02) translateY(-4px); }

/* Accordion (FAQ) */
.accordion details { background: var(--surface); margin-bottom: 1rem; border-radius: 12px; border: 1px solid var(--border); overflow: hidden; }
.accordion summary { padding: 1.25rem 1.5rem; font-weight: 600; cursor: pointer; list-style: none; position: relative; color: var(--text); }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: '+'; position: absolute; right: 1.5rem; font-size: 1.25rem; color: var(--accent); transition: transform 0.2s; }
.accordion details[open] summary::after { content: '−'; transform: rotate(180deg); }
.accordion p { padding: 0 1.5rem 1.25rem; margin: 0; color: var(--muted); border-top: 1px solid var(--border); padding-top: 1rem; }

.contact-container { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.contact-form-wrapper { background: var(--surface); padding: 2rem; border-radius: 16px; border: 1px solid var(--border); box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05); }
.form-row { margin-bottom: 1.25rem; }
label { display: block; font-weight: 600; margin-bottom: 0.5rem; font-size: 0.9rem; }
input, textarea { width: 100%; padding: 0.75rem 1rem; border-radius: 8px; border: 1px solid var(--border); font-family: inherit; font-size: 1rem; transition: border-color 0.2s; }
input:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }

.site-footer { text-align: center; padding: 3rem 2rem; color: var(--muted); border-top: 1px solid var(--border); margin-top: 4rem; }

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links { display: none; flex-direction: column; width: 100%; position: absolute; top: 100%; left: 0; background: var(--surface); padding: 1rem 2rem; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .contact-container { grid-template-columns: 1fr; gap: 2rem; }
  
  /* Mobile layout and scrolling fixes */
  .cards { grid-template-columns: 1fr; } 
  .section { padding: 3rem 1.25rem; }
  .section.alt { padding: 2rem 1.25rem; }
}