/* Neural Arc Brand Guidelines CSS Framework */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@200;300;400;500;600;700;800&display=swap');

/* ===== CSS VARIABLES - NEURAL ARC COLOR PALETTE ===== */
:root {
  /* Neural Arc Brand Colors */
  --neural-flame: #E85A4F;        /* Primary Accent */
  --deep-intelligence: #2D5016;   /* Primary Text */
  --synaptic-sage: #A4C3A2;       /* Secondary Accent */
  --quantum-cream: #F5F5DC;       /* Background */
  --pure-logic: #FFFFFF;          /* Contrast */
  --algorithm-mint: #C8E6C9;      /* Tertiary */
  --carbon-core: #2C2C2C;         /* Secondary Text */
  
  /* Semantic Color Mapping */
  --primary-color: var(--neural-flame);
  --secondary-color: var(--synaptic-sage);
  --text-primary: var(--deep-intelligence);
  --text-secondary: var(--carbon-core);
  --background-primary: var(--quantum-cream);
  --background-secondary: var(--pure-logic);
  --accent-light: var(--algorithm-mint);
  
  /* Typography */
  --font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(45, 80, 22, 0.08);
  --shadow-md: 0 4px 16px rgba(45, 80, 22, 0.12);
  --shadow-lg: 0 8px 32px rgba(45, 80, 22, 0.16);
  --shadow-xl: 0 16px 64px rgba(45, 80, 22, 0.20);
  
  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.25s ease-out;
  --transition-slow: 0.35s ease-out;
}

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

html {
  scroll-behavior: smooth;
}

/* ===== ENHANCED PREMIUM AESTHETICS ===== */
body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--background-primary) 0%, #f8f6f0 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ===== TYPOGRAPHY SYSTEM ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family);
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: var(--font-weight-semibold);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: var(--font-weight-medium);
}

p {
  font-size: 1rem;
  font-weight: var(--font-weight-regular);
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

/* ===== LAYOUT COMPONENTS ===== */
/* Enhanced header with subtle gradient */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  background: linear-gradient(135deg, var(--background-secondary) 0%, #fafafa 100%);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(164, 195, 162, 0.2);
}

.logo img {
  height: auto;
  transition: transform var(--transition-normal);
}

.logo img:hover {
  transform: scale(1.05);
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* Enhanced section styling with premium feel */
section {
  margin-bottom: var(--space-2xl);
  padding: var(--space-xl);
  background: linear-gradient(135deg, var(--background-secondary) 0%, #fafafa 100%);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(164, 195, 162, 0.1);
  position: relative;
  overflow: hidden;
}

section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neural-flame) 0%, var(--synaptic-sage) 100%);
}

/* ===== COLOR PALETTE SECTION ===== */
.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

/* Enhanced color cards with premium shadows */
.color-card {
  background: var(--background-secondary);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid rgba(164, 195, 162, 0.1);
}

.color-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.color-swatch {
  height: 120px;
  width: 100%;
  position: relative;
  cursor: pointer;
}

.color-info {
  padding: var(--space-md);
}

.color-name {
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-xs);
}

.color-hex {
  font-family: 'Monaco', 'Menlo', monospace;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.color-usage {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-style: italic;
}

/* ===== TYPOGRAPHY SHOWCASE ===== */
.font-showcase {
  margin-top: var(--space-lg);
  padding: var(--space-xl);
  background: var(--accent-light);
  border-radius: var(--radius-md);
}

.font-showcase h1,
.font-showcase h2,
.font-showcase h3,
.font-showcase p {
  margin-bottom: var(--space-md);
}

/* ===== UI COMPONENTS ===== */
.component-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

/* Enhanced component cards */
.component-card {
  background: linear-gradient(135deg, var(--accent-light) 0%, #d4e6d5 100%);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(164, 195, 162, 0.2);
  position: relative;
}

.component-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neural-flame) 0%, var(--synaptic-sage) 100%);
}

.component-card h3 {
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

/* ===== CARD COMPONENTS ===== */
/* Enhanced cards with premium styling */
.card {
  background: linear-gradient(135deg, var(--background-secondary) 0%, #fafafa 100%);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid rgba(164, 195, 162, 0.1);
  position: relative;
}

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

.card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neural-flame) 0%, var(--synaptic-sage) 100%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card:hover::after {
  opacity: 1;
}

.card-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.card-header i {
  color: var(--primary-color);
  width: 24px;
  height: 24px;
}

.card-header h4 {
  margin: 0;
  color: var(--text-primary);
}

/* ===== ICON SYSTEM ===== */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--background-secondary);
  border-radius: var(--radius-sm);
}

.icon-grid i {
  width: 32px;
  height: 32px;
  color: var(--primary-color);
  transition: transform var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
}

.icon-grid i:hover {
  transform: scale(1.2);
  color: var(--secondary-color);
}

/* ===== TABLE COMPONENTS ===== */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--background-secondary);
}

th, td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--accent-light);
}

th {
  background: var(--accent-light);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

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

tr:hover {
  background: var(--accent-light);
}

/* ===== FORM ELEMENTS ===== */
.form-example {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

input[type="text"] {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--accent-light);
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

input[type="text"]:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(232, 90, 79, 0.1);
}

.btn-primary {
  padding: var(--space-sm) var(--space-lg);
  background: var(--primary-color);
  color: var(--background-secondary);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-weight: var(--font-weight-medium);
  font-size: 1rem;
  cursor: pointer;
  transition: background-color var(--transition-normal), transform var(--transition-fast);
}

.btn-primary:hover {
  background: #d14a3f;
  transform: translateY(-1px);
}

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

/* ===== CHART COMPONENTS ===== */
.chart-container {
  background: var(--background-secondary);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  height: 200px;
}

/* ===== WORKFLOW DIAGRAM COMPONENTS ===== */
.workflow-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--background-secondary);
  border-radius: var(--radius-sm);
  overflow-x: auto;
}

.workflow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md);
  background: linear-gradient(135deg, var(--primary-color) 0%, #d14a3f 100%);
  color: var(--background-secondary);
  border-radius: var(--radius-md);
  min-width: 80px;
  text-align: center;
  font-weight: var(--font-weight-medium);
  font-size: 0.875rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  cursor: pointer;
  position: relative;
}

.workflow-step:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.workflow-step[data-step="1"] {
  background: linear-gradient(135deg, var(--synaptic-sage) 0%, #8fb88d 100%);
}

.workflow-step[data-step="2"] {
  background: linear-gradient(135deg, var(--primary-color) 0%, #d14a3f 100%);
}

.workflow-step[data-step="3"] {
  background: linear-gradient(135deg, var(--deep-intelligence) 0%, #1a3009 100%);
}

.workflow-step[data-step="4"] {
  background: linear-gradient(135deg, var(--synaptic-sage) 0%, #8fb88d 100%);
}

.workflow-step i {
  width: 24px;
  height: 24px;
}

.workflow-arrow {
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  animation: pulse 2s infinite;
}

.workflow-arrow i {
  width: 20px;
  height: 20px;
}

/* ===== PROCESS FLOW COMPONENTS ===== */
.process-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--background-secondary);
  border-radius: var(--radius-sm);
}

.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-medium);
  font-size: 0.875rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  cursor: pointer;
  min-width: 100px;
  text-align: center;
}

.flow-node:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.flow-node.decision {
  background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
  color: var(--carbon-core);
  border-radius: 50px;
}

.flow-node.action {
  background: linear-gradient(135deg, var(--primary-color) 0%, #d14a3f 100%);
  color: var(--background-secondary);
}

.flow-node i {
  width: 24px;
  height: 24px;
}

.flow-branches {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
}

.flow-branch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.flow-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--text-secondary);
}

.flow-arrow i {
  width: 20px;
  height: 20px;
  animation: bounce 2s infinite;
}

.flow-label {
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  background: var(--accent-light);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

/* ===== DRAG & DROP COMPONENTS ===== */
.drag-drop-container {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.draggable {
  padding: var(--space-md);
  background: var(--primary-color);
  color: var(--background-secondary);
  border-radius: var(--radius-sm);
  cursor: grab;
  user-select: none;
  transition: transform var(--transition-normal);
}

.draggable:active {
  cursor: grabbing;
  transform: rotate(5deg);
}

.droppable {
  padding: var(--space-lg);
  border: 2px dashed var(--accent-light);
  border-radius: var(--radius-sm);
  text-align: center;
  color: var(--text-secondary);
  transition: border-color var(--transition-normal), background-color var(--transition-normal);
}

.droppable.drag-over {
  border-color: var(--primary-color);
  background-color: rgba(232, 90, 79, 0.05);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
  
  main {
    padding: 0 var(--space-md);
  }
  
  section {
    padding: var(--space-md);
  }
  
  .component-grid {
    grid-template-columns: 1fr;
  }
  
  .palette-grid {
    grid-template-columns: 1fr;
  }
  
  .form-example {
    flex-direction: column;
    align-items: stretch;
  }
  
  .drag-drop-container {
    flex-direction: column;
  }
  
  .workflow-container {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .workflow-arrow {
    transform: rotate(90deg);
  }
  
  .flow-branches {
    flex-direction: column;
    gap: var(--space-lg);
  }
  
  .workflow-step {
    min-width: 120px;
  }
}

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

/* ===== ENHANCED ANIMATIONS ===== */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-5px);
  }
  60% {
    transform: translateY(-3px);
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: var(--shadow-sm);
  }
  50% {
    box-shadow: 0 0 20px rgba(232, 90, 79, 0.3);
  }
}

.workflow-step:nth-child(odd) {
  animation: glow 3s infinite;
}

.animate-fade-in {
  animation: fadeInUp 0.6s ease-out;
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for accessibility */
*:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* ===== PRINT STYLES ===== */
@media print {
  body {
    background: white;
    color: black;
  }
  
  section {
    box-shadow: none;
    border: 1px solid #ccc;
  }
  
  .color-swatch {
    border: 1px solid #ccc;
  }
}