:root {
  /* Dynamic & Modern Palette */
  --bg-dark: #0a0a0c;
  --bg-card: #141418;
  --accent-primary: #6366f1; /* Indigo */
  --accent-secondary: #a855f7; /* Purple */
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border-color: rgba(255, 255, 255, 0.1);
  --success: #22c55e;
  
  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 80px;
  --space-2xl: 120px;

  /* Typography */
  --font-main: 'Outfit', system-ui, -apple-system, sans-serif;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
}

/* Typography Helpers */
h1, h2, h3 {
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Navigation */
nav {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  background: rgba(10, 10, 12, 0.8);
  backdrop-filter: blur(12px);
  z-index: 100;
}

.nav-links {
  display: flex;
  gap: var(--space-md);
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}

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

.btn {
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

/* Hero Section */
.hero {
  padding: var(--space-xl) 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  margin-bottom: var(--space-md);
}

.hero p {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto var(--space-lg);
}

/* Workflow Visualization */
.workflow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  position: relative;
  padding: var(--space-lg) 0;
}

.workflow-step {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s forwards;
}

.workflow-step:nth-child(even) {
  direction: rtl;
}

.workflow-step:nth-child(even) .step-content {
  direction: ltr;
}

.step-content {
  padding: var(--space-md);
}

.step-number {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: var(--space-sm);
  display: block;
}

.step-content h2 {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}

.step-content p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.step-visual {
  background: var(--bg-card);
  border-radius: 24px;
  padding: var(--space-md);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Inner Visual Mockups */
.mockup-ui {
  width: 100%;
  height: 100%;
  background: #1a1a20;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  padding: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mockup-header {
  height: 20px;
  width: 40%;
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
}

.mockup-line {
  height: 12px;
  width: 100%;
  background: rgba(255,255,255,0.03);
  border-radius: 2px;
}

.mockup-pill {
  height: 32px;
  padding: 0 12px;
  border-radius: 20px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  width: fit-content;
}

/* Flow Line Connectors (Visual only) */
.workflow-grid::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-primary), var(--accent-secondary), transparent);
  transform: translateX(-50%);
  z-index: -1;
  display: none; /* Hidden on mobile */
}

@media (min-width: 1024px) {
  .workflow-grid::before {
    display: block;
  }
}

/* Status Cards for Simulation */
.status-card {
  background: #1a1a20;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  width: 240px;
  position: absolute;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.status-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.8rem;
}

.badge-status {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
  background: rgba(34, 197, 94, 0.1);
  color: var(--success);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.workflow-step:nth-child(1) { animation-delay: 0.1s; }
.workflow-step:nth-child(2) { animation-delay: 0.3s; }
.workflow-step:nth-child(3) { animation-delay: 0.5s; }
.workflow-step:nth-child(4) { animation-delay: 0.7s; }

/* Call to Action */
.cta-section {
  padding: var(--space-2xl) 0;
  text-align: center;
  background: radial-gradient(circle at center, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
}

.cta-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 32px;
  padding: var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
}

/* Footer */
footer {
  margin-top: var(--space-2xl);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

/* Placeholders */
.placeholder-image {
  background: linear-gradient(45deg, #1a1a20, #252530);
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-weight: 500;
  position: relative;
}

.placeholder-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent-primary);
  flex-shrink: 0;
}

/* Dashboard Layout */
.dashboard-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--bg-card);
  border-right: 1px solid var(--border-color);
  padding: var(--space-md);
}

.main-content {
  padding: var(--space-lg);
  background: #0d0d0f;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: var(--space-md);
  border-radius: 16px;
}

.table-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
}

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

th {
  background: rgba(255,255,255,0.02);
  padding: 16px;
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.2s;
}

.sidebar-link.active {
  background: rgba(99, 102, 241, 0.1);
  color: var(--accent-primary);
}

@media (max-width: 1024px) {
  .dashboard-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: none;
  }
}

@media (max-width: 900px) {
  .workflow-step {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    text-align: center;
  }
  
  .workflow-step:nth-child(even) {
    direction: ltr;
  }
  
  .step-visual {
    order: 2;
  }
  
  .step-content {
    order: 1;
  }
}