/* ===== CSS VARIABLES ===== */
:root {
  /* SnapB2B Logo Colors */
  --primary-blue: #0066CC;
  --primary-blue-dark: #004C99;
  --primary-blue-light: #3385DB;
  
  --slate-gray: #6B7C7C;
  --slate-gray-dark: #4A5A5A;
  --slate-gray-light: #8B9B9B;
  
  --black: #1A1A1A;
  --white: #FFFFFF;
  
  /* Extended Palette */
  --bg-light: #F8FAFB;
  --bg-lighter: #FCFCFD;
  --border-light: #E5EAED;
  --text-primary: #1A1A1A;
  --text-secondary: #4A5A5A;
  --text-muted: #6B7C7C;
  
  /* Accent Colors (derived from logo) */
  --accent-teal: #5C9BA4;
  --accent-blue: #0066CC;
  --success: #00A878;
  --warning: #FFA559;
  --error: #DC2626;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0066CC 0%, #004C99 100%);
  --gradient-hero: linear-gradient(135deg, #0066CC 0%, #0052A3 50%, #003D7A 100%);
  --gradient-overlay: linear-gradient(180deg, rgba(0, 102, 204, 0.03) 0%, rgba(255, 255, 255, 0) 100%);
  --gradient-card: linear-gradient(180deg, #FFFFFF 0%, #F8FAFB 100%);
  
  /* Spacing */
  --spacing-xs: 0.5rem;     /* 8px */
  --spacing-sm: 1rem;       /* 16px */
  --spacing-md: 1.5rem;     /* 24px */
  --spacing-lg: 2rem;       /* 32px */
  --spacing-xl: 3rem;       /* 48px */
  --spacing-2xl: 4rem;      /* 64px */
  --spacing-3xl: 6rem;      /* 96px */
  --spacing-4xl: 8rem;      /* 128px */
  
  /* Typography - typography */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Helvetica Neue', sans-serif;
  --font-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  
  /* Font Weights */
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
  --shadow-blue: 0 8px 24px -4px rgba(0, 102, 204, 0.12);
}

/* ===== RESET & BASE STYLES ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

h1 { 
  font-size: 3rem; 
  font-weight: 800;
  letter-spacing: -1px;
}

h2 { 
  font-size: 2.25rem; 
  font-weight: 800;
  letter-spacing: -0.5px;
}

h3 { 
  font-size: 1.5rem; 
  font-weight: 700;
}

h4 { 
  font-size: 1.25rem; 
  font-weight: 700;
}

h5 { 
  font-size: 1.125rem; 
  font-weight: 600;
}

h6 { 
  font-size: 1rem; 
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
  color: var(--text-secondary);
}

strong, b {
  font-weight: 600;
  color: var(--text-primary);
}

.text-secondary {
  color: var(--text-secondary);
}

.text-light {
  color: var(--text-light);
}

/* ===== LAYOUT ===== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-wide {
  max-width: 1400px;
}

.section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.section-alt {
  background: var(--bg-light);
}

/* Section Headers */
.section h2 {
  font-size: 2.5rem;
  font-weight: var(--fw-extrabold);
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

.text-center h2 {
  text-align: center;
}

.text-center .text-secondary {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto var(--spacing-2xl);
  line-height: 1.7;
}

/* ===== HEADER & NAVIGATION ===== */
.header {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem var(--spacing-lg);
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  transition: opacity var(--transition-fast);
}

.logo:hover {
  opacity: 0.85;
}

.logo img {
  width: 200px; 
  height: auto;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-xs);
  align-items: center;
}

.nav-link {
  color: var(--text-primary);
  font-weight: var(--fw-medium);
  font-size: 0.9375rem;
  padding: 0.625rem 1rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--primary-blue);
  background: var(--bg-light);
}

.nav-link.active {
  color: var(--primary-blue);
  font-weight: var(--fw-semibold);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background: var(--primary-blue);
}

/* CTA Button in Nav */
.nav-link.btn-primary {
  background: var(--primary-blue);
  color: white;
  font-weight: var(--fw-semibold);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
}

.nav-link.btn-primary:hover {
  background: var(--primary-blue-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-blue);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  position: relative;
  z-index: 10;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  transition: all var(--transition-base);
  border-radius: 2px;
}

/* ===== HERO SECTION ===== */
.hero {
  background: linear-gradient(180deg, #F8FAFB 0%, #FFFFFF 100%);
  padding: var(--spacing-4xl) 0 var(--spacing-3xl);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at top right, rgba(0, 102, 204, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 var(--spacing-lg);
}

.hero h1 {
  color: var(--text-primary);
  font-size: 3.5rem;
  font-weight: var(--fw-extrabold);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}

.hero h1 .highlight {
  color: var(--primary-blue);
  position: relative;
  display: inline-block;
}

.hero p {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

/* Fade in animation */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content > * {
  animation: fadeInUp 0.6s ease-out backwards;
}

.hero h1 {
  animation-delay: 0.1s;
}

.hero p {
  animation-delay: 0.2s;
}

.hero-buttons {
  animation-delay: 0.3s;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  font-weight: var(--fw-semibold);
  font-size: 0.9375rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-blue);
  color: white;
  border-color: var(--primary-blue);
}

.btn-primary:hover {
  background: var(--primary-blue-dark);
  border-color: var(--primary-blue-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-blue);
}

.btn-secondary {
  background: white;
  color: var(--primary-blue);
  border-color: var(--border-light);
}

.btn-secondary:hover {
  background: var(--bg-light);
  border-color: var(--primary-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--primary-blue);
  border-color: var(--primary-blue);
}

.btn-outline:hover {
  background: var(--primary-blue);
  color: white;
}

.btn-large {
  padding: 1rem 2.25rem;
  font-size: 1rem;
}

.btn:active {
  transform: translateY(0);
}

/* ===== CARDS ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  position: relative;
}

.card:hover {
  border-color: var(--primary-blue);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 102, 204, 0.05) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: var(--primary-blue);
  font-size: 1.5rem;
  transition: all var(--transition-base);
}

.card:hover .card-icon {
  background: var(--primary-blue);
  color: white;
  transform: scale(1.05);
}

.card h3 {
  font-size: 1.25rem;
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
}

.card p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0;
  font-size: 0.9375rem;
}

/* ===== FEATURES SECTION ===== */
.features {
  padding: var(--spacing-3xl) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.feature-item {
  text-align: center;
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
}

.feature-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--spacing-md);
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.08) 0%, rgba(0, 102, 204, 0.03) 100%);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--primary-blue);
  transition: all var(--transition-base);
}

.feature-item:hover .feature-icon {
  background: var(--primary-blue);
  color: white;
  transform: translateY(-4px);
  box-shadow: var(--shadow-blue);
}

.feature-item h3 {
  font-size: 1.125rem;
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

.feature-item p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.9375rem;
  margin: 0;
}

/* ===== CTA SECTION ===== */
.cta {
  background: var(--primary-blue);
  color: white;
  padding: var(--spacing-3xl) 0;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at top right, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 var(--spacing-lg);
}

.cta h2 {
  color: white;
  font-size: 2.5rem;
  font-weight: var(--fw-extrabold);
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.cta p {
  font-size: 1.125rem;
  line-height: 1.6;
  opacity: 0.95;
  margin-bottom: var(--spacing-xl);
  color: white;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--text-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  position: relative;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  color: white;
  font-size: 1rem;
  font-weight: var(--fw-semibold);
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.footer-section p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-xl);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--spacing-xs);
  line-height: 1.6;
}

/* ===== FORM STYLES ===== */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: all var(--transition-base);
  background: white;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
  transform: translateY(-2px);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-input.error,
.form-textarea.error {
  border-color: #e74c3c;
}

.error-message {
  color: #e74c3c;
  font-size: 0.875rem;
  margin-top: 0.25rem;
  display: block;
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.hidden { display: none; }
.visible { display: block; }

/* ===== DECORATIVE ELEMENTS ===== */
.gradient-text {
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: var(--gradient-blue);
  color: white;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
}

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
  margin: var(--spacing-lg) 0;
}

/* ===== STATS / NUMBERS ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-xs);
  line-height: 1;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
}

/* ===== ANIMATED BACKGROUNDS ===== */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

.floating {
  animation: float 6s ease-in-out infinite;
}

/* ===== LOADING STATES ===== */
.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.6;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 3px solid var(--primary-color);
  border-radius: 50%;
  border-top-color: transparent;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}