:root {
  --primary: #232F3E; /* Amazon Deep Navy */
  --secondary: #37475A; /* Lighter Navy */
  --accent: #FF9900; /* Amazon Orange */
  --accent-hover: #e88b00;
  --bg-light: #F2F4F8;
  --text-main: #111827;
  --text-muted: #6B7280;
  --white: #FFFFFF;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-light);
  color: var(--text-main);
  line-height: 1.5;
  overflow-x: hidden;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  color: var(--primary);
  line-height: 1.2;
}

h1 {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 12px;
}

p {
  color: var(--text-muted);
  font-size: 1.125rem;
  margin-bottom: 24px;
  max-width: 60ch;
}

.text-center { text-align: center; }
.text-white { color: var(--white); }
.text-accent { color: var(--accent); }

/* Components */
.card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #FFB033 100%);
  color: var(--primary);
  box-shadow: 0 4px 14px rgba(255, 153, 0, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 153, 0, 0.5);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border: 1px solid #E5E7EB;
}

.btn-secondary:hover {
  background: #F9FAFB;
  border-color: #D1D5DB;
}

/* Nav */
.navbar {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 20px 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-link {
  text-decoration: none;
  color: var(--primary);
  font-weight: 500;
  transition: color 0.2s;
}

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

/* LOGO CONCEPTS */

/* Concept 1: Quadrant */
.logo-1 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.logo-icon-1 {
  width: 36px; 
  height: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  background: transparent;
  padding: 0;
}

.logo-icon-1 .quad {
  background: var(--primary);
  border-radius: 2px;
  width: 100%;
  height: 100%;
}
.logo-icon-1 .quad.active {
  background: var(--accent);
  border-radius: 2px 8px 2px 2px;
}

/* Concept 2: Orbit */
.logo-2 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--primary);
}

.logo-icon-2 {
  width: 40px; 
  height: 40px;
  border: 3px solid var(--primary);
  border-radius: 50%;
  position: relative;
}

.logo-icon-2 .planet {
  position: absolute;
  top: -4px; 
  right: 4px;
  width: 12px; 
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--white);
}

/* Concept 3: Stack Layers */
.logo-3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--primary);
}

.logo-icon-3 {
  display: flex; 
  flex-direction: column; 
  gap: 6px;
  width: 36px;
  transform: skewX(-12deg);
  justify-content: center;
}

.logo-icon-3 .layer {
  height: 6px; 
  width: 100%;
  background: var(--primary);
  border-radius: 2px;
}

.logo-icon-3 .layer.active {
  background: var(--accent);
  width: 120%; 
  margin-left: -10%;
  box-shadow: 2px 2px 5px rgba(255,153,0,0.2);
}

/* Landing Page Utilities */
.text-lg { font-size: 1.25rem; }
.text-xl { font-size: 1.5rem; }
.text-sm { font-size: 0.875rem; }
.font-bold { font-weight: 700; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }

.bg-white { background-color: var(--white); }
.bg-primary { background-color: var(--primary); }
.bg-light { background-color: var(--bg-light); }

.w-full { width: 100%; }
.max-w-md { max-width: 28rem; }
.max-w-2xl { max-width: 42rem; }

.hero-section {
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
  margin: 0 auto;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 60px;
}

.stat-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.1);
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  color: rgba(255,255,255,0.8);
  font-size: 0.875rem;
  font-weight: 500;
}

.feature-card {
  padding: 40px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
}

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

.feature-icon-box {
  width: 56px;
  height: 56px;
  background: #FFF7EB;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--accent);
}

.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #1a232f 100%);
  color: var(--white);
  border-radius: 24px;
  padding: 80px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255,153,0,0.15) 0%, rgba(255,153,0,0) 70%);
  border-radius: 50%;
  transform: translate(30%, -30%);
}

.footer {
  background: var(--primary);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 30px;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-col h4 {
  color: var(--white);
  margin-bottom: 20px;
  font-size: 1rem;
}

.footer-link {
  display: block;
  color: inherit;
  text-decoration: none;
  margin-bottom: 12px;
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--accent);
}

/* Tablet adjustments */
@media (max-width: 900px) {
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Mobile adjustments */
@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* Presentation specific */
.brand-showcase {
  background: var(--white);
  padding: 60px;
  border-radius: 24px;
  border: 1px solid #E5E7EB;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  min-height: 400px;
}

.color-swatch {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  margin-bottom: 12px;
}

.bg-primary { background: var(--primary); }
.bg-secondary { background: var(--secondary); }
.bg-accent { background: var(--accent); }

/* Mockup Elements */
.hero-mockup {
  background: var(--primary);
  border-radius: 16px;
  padding: 60px 40px;
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-mockup::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,153,0,0.1) 0%, rgba(255,153,0,0) 70%);
  border-radius: 50%;
}

.mockup-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding-bottom: 20px;
}

.mockup-link {
  color: rgba(255,255,255,0.7);
  margin-left: 20px;
  font-size: 0.9rem;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255, 153, 0, 0.15);
  color: var(--accent);
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 16px;
}

/* Responsive */
@media (max-width: 768px) {
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
  
  h1 { font-size: 2.5rem; }
}

/* Landing Page Specifics */
.hero-bg {
  background-color: var(--primary);
  color: white;
  padding: 120px 0 80px;
}

.hero-title {
  color: white;
  font-size: 3.5rem;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-subtitle {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.25rem;
  margin-bottom: 40px;
  max-width: 600px;
}

.service-icon {
  width: 48px;
  height: 48px;
  background: #FFF7EB;
  color: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 24px;
}

.text-main { color: var(--text-main); }
.text-muted { color: var(--text-muted); }

/* Abstract Chart Card */
.chart-card {
  background: white;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
  max-width: 400px;
  margin-left: auto;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.chart-badge {
  background: #DEF7EC;
  color: #03543F;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 120px;
  gap: 8px;
}

.chart-bar {
  width: 100%;
  background: #F3F4F6;
  border-radius: 4px;
}

.chart-bar.active {
  background: var(--accent);
}

.chart-footer {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid #F3F4F6;
}

.chart-stats-row {
  display: flex;
  justify-content: space-between;
}

.floating-badge {
  position: absolute;
  bottom: -20px;
  left: 40px;
  background: white;
  padding: 16px 24px;
  border-radius: 12px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-dot {
  width: 12px;
  height: 12px;
  background: #10B981;
  border-radius: 50%;
}

.profile-placeholder {
  background: #F3F4F6;
  width: 100%;
  aspect-ratio: 1/1;
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.profile-decoration {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--accent);
  width: 120px;
  height: 120px;
  border-radius: 50%;
  z-index: -1;
  opacity: 0.2;
}

.why-grid {
  display: flex;
  gap: 40px;
  margin-top: 32px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
}

.footer-legal-link {
  color: inherit;
  text-decoration: none;
  margin-left: 20px;
}

.expertise-label {
  display: block;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 1px;
}

.btn-secondary-dark {
  background: rgba(255,255,255,0.1);
  color: white;
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-secondary-dark:hover {
  background: rgba(255,255,255,0.2);
}