/* PVSOFT - Premium, Professional, Modern */
:root {
  --color-bg: #0f172a; /* Slate 900 */
  --color-surface-low: #1e293b; /* Slate 800 */
  --color-surface: #334155; /* Slate 700 */
  --color-primary: #3b82f6; /* Blue 500 */
  --color-primary-light: #60a5fa; /* Blue 400 */
  --color-accent: #8b5cf6; /* Violet 500 */
  --color-text: #f8fafc; /* Slate 50 */
  --color-text-muted: #94a3b8; /* Slate 400 */
  --color-border: rgba(255, 255, 255, 0.1);
  --font-heading: 'Outfit', 'Inter', -apple-system, system-ui, sans-serif;
  --font-body: 'Inter', -apple-system, system-ui, sans-serif;
  
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-2xl: 8rem;
  
  --site-width: 1100px;
  --radius: 12px;
  --gradient-brand: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.site-width {
  max-width: var(--site-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 80px;
  display: flex;
  align-items: center;
}
.header-glass {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.85); /* Slate 900 with alpha */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-area .logo {
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.75rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: baseline;
  color: #fff;
}
.logo-dot { color: var(--color-primary); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}
.nav-links a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.3s ease;
}
.nav-links a:hover, .nav-links a.active {
  color: #fff;
}
.nav-links a.active {
  position: relative;
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 2px;
}

.nav-cta {
  display: inline-block;
  background: var(--gradient-brand);
  color: #fff;
  padding: 0.6rem 1.4rem;
  border-radius: 40px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  margin-left: 2.5rem;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
  transition: transform 0.2s, box-shadow 0.2s;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

/* Typography Refresh */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}
h1 { font-size: clamp(2.5rem, 8vw, 4rem); letter-spacing: -0.03em; margin-bottom: 1.5rem; }
h2 { font-size: clamp(1.75rem, 5vw, 2.5rem); letter-spacing: -0.01em; margin-bottom: 3rem; text-align: center; }
p { font-size: 1.125rem; }

/* Hero Section */
.hero {
  padding: var(--space-xl) 0 var(--space-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 60%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
  z-index: -1;
}
.hero h1 span {
  display: block;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p {
  max-width: 65ch;
  margin: 0 auto 2.5rem;
  color: var(--color-text-muted);
}

/* Grid Sections (Services) */
.section-services {
  padding-bottom: var(--space-xl);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}
.service-card {
  background: var(--color-surface-low);
  border: 1px solid var(--color-border);
  padding: 3rem 2rem;
  border-radius: var(--radius);
  transition: transform 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}
.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(59, 130, 246, 0.4);
}
.service-icon {
  width: 48px;
  height: 48px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--color-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}
.service-card h3 { margin-bottom: 1rem; font-size: 1.5rem; }
.service-card p {
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.2);
}
.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid var(--color-border);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* CTA Block */
.cta-block {
  background: var(--gradient-brand);
  padding: 4rem;
  border-radius: 24px;
  text-align: center;
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-lg);
  position: relative;
}
.cta-block h2 { color: #fff; margin-bottom: 1.5rem; text-align: center; }
.cta-block p { color: rgba(255, 255, 255, 0.9); margin-bottom: 2.5rem; font-size: 1.25rem; }
.cta-block .btn { background: #fff; color: var(--color-primary); }

/* Footer */
.site-footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
}

/* Responsive */
.mobile-toggle { display: none; }

@media (max-width: 768px) {
  .site-header { height: 70px; }
  .main-nav { display: none; }
  .logo-area .logo { font-size: 1.4rem; }
  .hero { padding: var(--space-lg) 0; }
  .cta-block { padding: 2rem; }
  .mobile-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
  }
  .mobile-toggle span {
    width: 24px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
  }
}