:root{
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --bg: #f8fafc;
  --surface: #ffffff;
  --muted: #64748b;
  --text: #0f172a;
  --border: #e2e8f0;
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body{
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; 
  background: var(--bg); 
  color: var(--text); 
  line-height: 1.6;
  font-size: 16px;
}

.container{
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.95);
}

.header-flex{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.brand{
  display: flex;
  gap: 0.75rem;
  align-items: center;
  text-decoration: none;
  color: inherit;
  font-weight: 600;
}

.logo{
  width: 48px;
  height: 48px;
  border-radius: 8px;
}

.brand-text h1{
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.tagline {
  font-size: 0.875rem;
  color: var(--muted);
  font-weight: 500;
}

.main-nav {
  display: flex;
  gap: 2rem;
}

.main-nav a{
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.main-nav a:hover {
  color: var(--accent);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.2s ease;
}

.main-nav a:hover::after {
  width: 100%;
}

/* Hero Section */
.hero-bg {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(59, 130, 246, 0.05));
  padding: 4rem 0;
  margin-bottom: 4rem;
}

.hero{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content h2 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--accent), #1e40af);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content p {
  font-size: 1.25rem;
  color: var(--muted);
  margin-bottom: 2rem;
  max-width: 500px;
}

.btn{
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: white;
  padding: 0.875rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
  box-shadow: var(--shadow);
  border: none;
  cursor: pointer;
}

.btn:hover{
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* Services Grid */
.services-list{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.service{
  background: var(--surface);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.service::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), #1e40af);
}

.service:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service h3 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text);
}

.service p {
  color: var(--muted);
  line-height: 1.7;
}

/* Cards */
.cards{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.card{
  background: var(--surface);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text);
}

.card p {
  color: var(--muted);
  line-height: 1.7;
}

/* Contact Form */
.contact-grid{
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 3rem;
  margin: 3rem 0;
}

.contact-form {
  background: var(--surface);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.contact-form label{
  display: block;
  margin-bottom: 1.5rem;
  font-weight: 600;
  color: var(--text);
}

.contact-form input,
.contact-form textarea{
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.2s ease;
  background: var(--surface);
  margin-top: 0.5rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-info {
  background: var(--surface);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  height: fit-content;
}

.contact-info p {
  margin-bottom: 1.5rem;
}

.contact-info strong {
  display: block;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.contact-info a {
  color: var(--accent);
  text-decoration: none;
}

.contact-info a:hover {
  text-decoration: underline;
}

.thanks{
  background: var(--surface);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  text-align: center;
}

.thanks h3 {
  color: var(--accent);
  margin-bottom: 1rem;
}

/* Footer */
.site-footer{
  margin-top: 4rem;
  padding: 3rem 0 2rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.footer-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer-grid > div {
  color: var(--muted);
}

.footer-grid strong {
  color: var(--text);
  font-weight: 700;
  display: block;
  margin-bottom: 0.5rem;
}

.footer-grid a {
  color: var(--accent);
  text-decoration: none;
}

.footer-grid a:hover {
  text-decoration: underline;
}

/* Content sections */
article {
  max-width: 800px;
  margin: 0 auto;
}

article h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 2rem;
  color: var(--text);
}

article h3 {
  font-size: 1.875rem;
  font-weight: 700;
  margin: 2rem 0 1rem;
  color: var(--text);
}

article p {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 1.5rem;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content h2 {
    font-size: 2.5rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .main-nav {
    gap: 1rem;
  }
  
  .main-nav a {
    font-size: 0.875rem;
  }
}