/* ==========================================================================
   PRACTOLAB LIMS - Central Design System & Theme Stylesheet
   Design Philosophy: Vibrant Dark Glassmorphism, HSL Palette, High Contrast
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;600;800&display=swap');

:root {
  /* Color System */
  --bg-dark: #070a12;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-card-active: rgba(40, 53, 76, 0.9);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(249, 115, 22, 0.35);
  --border-emerald: rgba(16, 185, 129, 0.3);
  --border-purple: rgba(168, 85, 247, 0.3);
  
  /* Brand Palette */
  --primary: #f97316;
  --primary-light: #fb923c;
  --primary-dark: #ea580c;
  --primary-glow: rgba(249, 115, 22, 0.35);
  
  --secondary: #6366f1;
  --secondary-glow: rgba(99, 102, 241, 0.3);
  
  --teal-accent: #14b8a6;
  --emerald-accent: #10b981;
  --purple-accent: #a855f7;
  --rose-accent: #f43f5e;
  --amber-accent: #f59e0b;
  
  /* Typography */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  /* Geometry & Shadows */
  --radius-xl: 24px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-glow: 0 10px 40px -10px rgba(249, 115, 22, 0.25);
  --shadow-card: 0 20px 50px -15px rgba(0, 0, 0, 0.5);
  --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  
  /* Transitions */
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Setup */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 10%, rgba(249, 115, 22, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 90% 50%, rgba(99, 102, 241, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 50% 85%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
  background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6, .font-heading {
  font-family: 'Outfit', sans-serif;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.font-mono {
  font-family: 'JetBrains Mono', monospace;
}

/* Container & Layout Utilities */
.container {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 96px 0;
}

.section-padding-sm {
  padding: 64px 0;
}

/* Sticky Glass Header & Navigation */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(7, 10, 18, 0.92);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-smooth);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.logo-icon {
  height: 40px;
  width: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, #d97706 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 4px 20px rgba(249, 115, 22, 0.4);
}

.logo-text {
  font-family: 'Outfit', sans-serif;
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(to right, #ffffff, var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.01em;
}

.logo-text span {
  color: var(--primary);
  -webkit-text-fill-color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-shrink: 0;
}

.nav-link {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 13.5px;
  font-weight: 600;
  transition: var(--transition-fast);
  position: relative;
  padding: 8px 0;
  white-space: nowrap;
  display: inline-block;
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2.5px;
  background: var(--primary);
  border-radius: 4px;
  box-shadow: 0 0 12px var(--primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* Button Component System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #ffffff;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(249, 115, 22, 0.5);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
}

.btn-secondary {
  background: rgba(99, 102, 241, 0.15);
  color: #818cf8;
  border-color: rgba(99, 102, 241, 0.3);
}

.btn-secondary:hover {
  background: rgba(99, 102, 241, 0.25);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
  border-radius: var(--radius-lg);
}

/* Badge Styles */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-orange {
  background: rgba(249, 115, 22, 0.15);
  color: var(--primary);
  border: 1px solid rgba(249, 115, 22, 0.3);
}

.badge-emerald {
  background: rgba(16, 185, 129, 0.15);
  color: var(--emerald-accent);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-purple {
  background: rgba(168, 85, 247, 0.15);
  color: var(--purple-accent);
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.badge-indigo {
  background: rgba(99, 102, 241, 0.15);
  color: #818cf8;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

/* Glass Card & Box Styles */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-glass);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.6), 0 0 20px rgba(249, 115, 22, 0.1);
}

/* Section Header Typography */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 64px auto;
}

.section-header h2 {
  font-size: 40px;
  font-weight: 800;
  margin: 16px 0;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-header p {
  font-size: 18px;
  color: var(--text-muted);
}

/* Hero Banner Layout */
.hero-section {
  position: relative;
  padding: 80px 0 100px 0;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-content h1 {
  font-size: 52px;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero-content h1 .gradient-text {
  background: linear-gradient(135deg, #f97316 0%, #fb923c 50%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content p {
  font-size: 19px;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-trust-row {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.trust-item span.icon {
  font-size: 20px;
}

.trust-item div {
  display: flex;
  flex-direction: column;
}

.trust-item strong {
  font-size: 16px;
  color: var(--text-primary);
  font-weight: 800;
}

.trust-item label {
  font-size: 12px;
  color: var(--text-dim);
}

/* Feature Grid Cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  position: relative;
  overflow: hidden;
}

.feature-icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
  background: rgba(249, 115, 22, 0.1);
  border: 1px solid rgba(249, 115, 22, 0.2);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}

.feature-card .feature-bullets {
  margin-top: 16px;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feature-bullets li {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-bullets li::before {
  content: '✓';
  color: var(--emerald-accent);
  font-weight: 800;
}

/* Interactive Pricing Matrix Styles */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  align-items: stretch;
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.pricing-card.popular {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(249, 115, 22, 0.08) 0%, rgba(15, 23, 42, 0.9) 100%);
  box-shadow: 0 20px 50px -10px rgba(249, 115, 22, 0.25);
}

.popular-ribbon {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #ffffff;
  padding: 4px 16px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 15px rgba(249, 115, 22, 0.4);
}

.pricing-header h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
}

.pricing-header p {
  font-size: 13px;
  color: var(--text-muted);
  min-height: 40px;
}

.price-tag {
  margin: 24px 0;
  padding: 16px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.price-amount {
  font-size: 44px;
  font-weight: 900;
  font-family: 'Outfit', sans-serif;
  color: var(--text-primary);
}

.price-period {
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 600;
}

.pricing-features-list {
  list-style: none;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-features-list li {
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.pricing-features-list li .check {
  color: var(--emerald-accent);
  font-weight: 800;
  flex-shrink: 0;
}

/* Comparison Table */
.comparison-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 14px;
}

.comparison-table th {
  background: rgba(15, 23, 42, 0.95);
  font-family: 'Outfit', sans-serif;
  font-size: 16px;
  font-weight: 800;
  color: var(--text-primary);
  position: sticky;
  top: 80px;
  z-index: 10;
}

.comparison-table th.practolab-col {
  background: rgba(249, 115, 22, 0.15);
  color: var(--primary-light);
  border-left: 2px solid var(--primary);
  border-right: 2px solid var(--primary);
}

.comparison-table td.practolab-col {
  background: rgba(249, 115, 22, 0.04);
  border-left: 2px solid var(--primary);
  border-right: 2px solid var(--primary);
  font-weight: 700;
}

.comparison-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Live Demo Interactive Sandbox */
.demo-sandbox {
  border-radius: var(--radius-xl);
  background: #0f172a;
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.7);
}

.sandbox-bar {
  background: rgba(15, 23, 42, 0.95);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.sandbox-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.sandbox-tabs {
  display: flex;
  gap: 8px;
}

.sandbox-tab-btn {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid transparent;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.sandbox-tab-btn.active, .sandbox-tab-btn:hover {
  background: rgba(249, 115, 22, 0.15);
  color: var(--primary);
  border-color: rgba(249, 115, 22, 0.3);
}

.sandbox-body {
  padding: 32px;
  min-height: 420px;
}

/* Footer Component */
footer {
  background: rgba(4, 7, 13, 0.95);
  border-top: 1px solid var(--border-subtle);
  padding: 80px 0 40px 0;
  margin-top: 96px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 64px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 16px;
  max-width: 320px;
}

.footer-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 20px;
  font-family: 'Outfit', sans-serif;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-dim);
  font-size: 13px;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .hero-trust-row {
    justify-content: center;
  }
  
  .feature-grid, .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .section-header h2 {
    font-size: 30px;
  }
  
  .hero-content h1 {
    font-size: 36px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}