/* ARCx Refined - ARTIFACT Aesthetic Framework */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@100;200;300;400;500&family=JetBrains+Mono:wght@200;300;400&display=swap');

:root {
  /* ARTIFACT Monochrome Palette */
  --pure-black: #000000;
  --pure-white: #ffffff;
  --ghost-black: #0a0a0a;
  --soft-black: #151515;
  --mid-black: #1a1a1a;
  --text-gray: #999999;
  --border-gray: #2a2a2a;
  --accent-gray: #cccccc;
  
  /* Subtle Gradients */
  --surface-gradient: linear-gradient(135deg, #000000 0%, #0a0a0a 100%);
  --depth-gradient: linear-gradient(135deg, #080808 0%, #000000 100%);
  --subtle-shadow: 0 1px 3px rgba(255, 255, 255, 0.02), 0 1px 2px rgba(255, 255, 255, 0.04);
  --soft-shadow: 0 2px 8px rgba(255, 255, 255, 0.03), 0 1px 4px rgba(255, 255, 255, 0.06);
  
  /* Typography */
  --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Monaco', 'Consolas', monospace;
  --font-weight-ultra: 100;
  --font-weight-thin: 200;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;
  --space-xxxl: 4rem;
  
  /* Layout */
  --max-width: 800px;
  --border-radius: 2px;
  --line-height-tight: 1.3;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-light);
  font-size: 16px;
  line-height: var(--line-height-normal);
  color: var(--pure-white);
  background: var(--pure-black);
  position: relative;
  overflow-x: hidden;
}

/* Sophisticated Topological Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.02) 1px, transparent 1px),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.015) 1px, transparent 1px),
    radial-gradient(circle at 45% 80%, rgba(255,255,255,0.01) 1px, transparent 1px),
    linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.005) 25%, transparent 50%, rgba(255,255,255,0.005) 75%, transparent 100%),
    conic-gradient(from 0deg at 30% 20%, transparent 0deg, rgba(255,255,255,0.008) 60deg, transparent 120deg),
    conic-gradient(from 90deg at 70% 60%, transparent 0deg, rgba(255,255,255,0.006) 45deg, transparent 90deg);
  background-size: 
    120px 120px,
    180px 180px,
    240px 240px,
    300px 300px,
    400px 400px,
    350px 350px;
  background-position:
    0 0,
    60px 60px,
    120px 120px,
    0 0,
    0 0,
    0 0;
  pointer-events: none;
  z-index: -1;
  animation: subtle-drift 60s linear infinite;
}

/* Subtle animation for topological patterns */
@keyframes subtle-drift {
  0% { background-position: 0 0, 60px 60px, 120px 120px, 0 0, 0 0, 0 0; }
  100% { background-position: 120px 120px, 180px 180px, 240px 240px, 300px 300px, 400px 400px, 350px 350px; }
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-thin);
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
  color: var(--pure-white);
}

h1 {
  font-size: 2.5rem;
  font-weight: var(--font-weight-ultra);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: 1.75rem;
  margin-bottom: var(--space-md);
}

h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
  line-height: var(--line-height-relaxed);
  color: var(--accent-gray);
}

/* Code */
code {
  font-family: var(--font-mono);
  font-weight: var(--font-weight-light);
  font-size: 0.85em;
  background: var(--soft-black);
  color: var(--pure-white);
  padding: 0.2em 0.4em;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-gray);
}

/* Links */
a {
  color: var(--pure-white);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
}

a:hover {
  border-bottom-color: var(--pure-white);
  color: var(--text-gray);
}

/* Navigation */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-gray);
  z-index: 1000;
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-logo {
  width: 32px;
  height: auto;
  opacity: 0.9;
  filter: invert(1);
}

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

.nav-links-main a {
  font-weight: var(--font-weight-light);
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: opacity 0.2s ease;
}

.nav-links-main a:hover {
  opacity: 0.6;
  border-bottom: none;
}

/* Layout Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: calc(var(--space-xxxl) + 60px) var(--space-lg) var(--space-xxxl);
}

/* Card Components */
.card {
  background: var(--surface-gradient);
  border: 1px solid var(--border-gray);
  border-radius: var(--border-radius);
  padding: var(--space-xxl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--subtle-shadow);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.08) 50%, transparent 100%);
}

/* Section Dividers */
.divider {
  width: 60px;
  height: 1px;
  background: var(--pure-white);
  margin: var(--space-lg) 0;
}

/* Info Blocks */
.info-block {
  background: var(--ghost-black);
  border: 1px solid var(--border-gray);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
  font-size: 0.95rem;
  line-height: var(--line-height-relaxed);
}

.info-block strong {
  font-weight: var(--font-weight-normal);
  color: var(--pure-white);
}

/* Contract Details */
.contract-detail {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-gray);
}

.contract-detail:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.contract-label {
  font-weight: var(--font-weight-normal);
  font-size: 0.9rem;
  color: var(--text-gray);
  min-width: 120px;
}

.contract-value {
  font-family: var(--font-mono);
  font-weight: var(--font-weight-light);
  font-size: 0.9rem;
  color: var(--pure-white);
  word-break: break-all;
}

/* Status Badges */
.status-badge {
  display: inline-block;
  background: var(--pure-white);
  color: var(--pure-black);
  font-size: 0.8rem;
  font-weight: var(--font-weight-light);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius);
  margin: var(--space-xs) var(--space-xs) var(--space-xs) 0;
}

/* Buttons */
.btn {
  display: inline-block;
  background: var(--pure-white);
  color: var(--pure-black);
  font-family: var(--font-primary);
  font-weight: var(--font-weight-light);
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid var(--pure-white);
  border-radius: var(--border-radius);
  transition: all 0.2s ease;
  cursor: pointer;
  margin-right: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.btn:hover {
  background: var(--pure-black);
  color: var(--pure-white);
  border-bottom: 1px solid var(--pure-white);
}

.btn-secondary {
  background: var(--pure-black);
  color: var(--pure-white);
  border: 1px solid var(--border-gray);
}

.btn-secondary:hover {
  background: var(--pure-white);
  color: var(--pure-black);
  border-color: var(--pure-white);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-weight: var(--font-weight-normal);
  font-size: 0.9rem;
  color: var(--pure-white);
  margin-bottom: var(--space-xs);
}

.form-input {
  width: 100%;
  font-family: var(--font-mono);
  font-weight: var(--font-weight-light);
  font-size: 0.95rem;
  padding: var(--space-sm);
  border: 1px solid var(--border-gray);
  border-radius: var(--border-radius);
  background: var(--pure-black);
  color: var(--pure-white);
  transition: border-color 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--pure-white);
}

.form-input::placeholder {
  color: var(--text-gray);
}

/* Warning Blocks */
.warning {
  background: linear-gradient(135deg, #0a0a0a 0%, #151515 100%);
  border: 1px solid var(--border-gray);
  border-left: 3px solid var(--pure-white);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
  font-size: 0.95rem;
  line-height: var(--line-height-relaxed);
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-xxl: 2rem;
  }
  
  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }
  
  .nav-container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }
  
  .nav-links-main {
    gap: var(--space-lg);
  }
  
  h1 {
    font-size: 2rem;
  }
  
  .card {
    padding: var(--space-lg);
  }
  
  .contract-detail {
    flex-direction: column;
    gap: var(--space-xs);
  }
  
  .contract-label {
    min-width: auto;
  }
}

/* Micro-interactions */
.card {
  transition: box-shadow 0.3s ease;
}

.card:hover {
  box-shadow: var(--soft-shadow);
}

/* Print Styles */
@media print {
  .main-nav {
    display: none;
  }
  
  .container {
    padding-top: var(--space-lg);
  }
  
  .btn {
    display: none;
  }
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {

/* Typography Hierarchy (override for white on black) */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-thin);
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
  color: var(--pure-white);
}

h1 {
  font-size: 2.5rem;
  font-weight: var(--font-weight-ultra);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: 1.75rem;
  margin-bottom: var(--space-md);
}

h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
  line-height: var(--line-height-relaxed);
  color: var(--accent-gray);
}

/* Code */
code {

code {
  font-family: var(--font-mono);
  font-weight: var(--font-weight-light);
  font-size: 0.85em;
  background: var(--soft-black);
  color: var(--pure-white);
  padding: 0.2em 0.4em;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-gray);
}

/* Links */
a {

a {
  color: var(--pure-white);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
}

a:hover {
  border-bottom-color: var(--pure-black);
}

/* Navigation */
.main-nav {

.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-gray);
  z-index: 1000;
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-logo {

.nav-logo {
  width: 32px;
  height: auto;
  opacity: 0.9;
  filter: invert(1);
}

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

.nav-links-main a {
  font-weight: var(--font-weight-light);
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: opacity 0.2s ease;
}

.nav-links-main a:hover {
  opacity: 0.6;
  border-bottom: none;
}

/* Layout Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: calc(var(--space-xxxl) + 60px) var(--space-lg) var(--space-xxxl);
}

/* Card Components */
.card {
  background: var(--surface-gradient);
  border: 1px solid var(--border-gray);
  border-radius: var(--border-radius);
  padding: var(--space-xxl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--subtle-shadow);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.05) 50%, transparent 100%);
}

/* Section Dividers */
.divider {

.divider {
  width: 60px;
  height: 1px;
  background: var(--pure-white);
  margin: var(--space-lg) 0;
}

/* Info Blocks */
.info-block {

.info-block {
  background: var(--ghost-black);
  border: 1px solid var(--border-gray);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
  font-size: 0.95rem;
  line-height: var(--line-height-relaxed);
}

.info-block strong {
  font-weight: var(--font-weight-normal);
  color: var(--pure-black);
}

/* Contract Details */
.contract-detail {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--mid-gray);
}

.contract-detail:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.contract-label {
  font-weight: var(--font-weight-normal);
  font-size: 0.9rem;
  color: var(--text-gray);
  min-width: 120px;
}

.contract-value {

.contract-value {
  font-family: var(--font-mono);
  font-weight: var(--font-weight-light);
  font-size: 0.9rem;
  color: var(--pure-white);
  word-break: break-all;
}

/* Status Badges */
.status-badge {

.status-badge {
  display: inline-block;
  background: var(--pure-white);
  color: var(--pure-black);
  font-size: 0.8rem;
  font-weight: var(--font-weight-light);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius);
  margin: var(--space-xs) var(--space-xs) var(--space-xs) 0;
}

/* Buttons */
.btn {

.btn {
  display: inline-block;
  background: var(--pure-white);
  color: var(--pure-black);
  font-family: var(--font-primary);
  font-weight: var(--font-weight-light);
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid var(--pure-white);
  border-radius: var(--border-radius);
  transition: all 0.2s ease;
  cursor: pointer;
  margin-right: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.btn:hover {
  background: var(--pure-white);
  color: var(--pure-black);
  border-bottom: 1px solid var(--pure-black);
}

.btn-secondary {
  background: var(--pure-white);
  color: var(--pure-black);
  border: 1px solid var(--border-gray);
}

.btn-secondary:hover {
  background: var(--pure-black);
  color: var(--pure-white);
  border-color: var(--pure-black);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {

.form-label {
  display: block;
  font-weight: var(--font-weight-normal);
  font-size: 0.9rem;
  color: var(--pure-white);
  margin-bottom: var(--space-xs);
}

.form-input {
  width: 100%;
  font-family: var(--font-mono);
  font-weight: var(--font-weight-light);
  font-size: 0.95rem;
  padding: var(--space-sm);
  border: 1px solid var(--border-gray);
  border-radius: var(--border-radius);
  background: var(--pure-white);
  transition: border-color 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--pure-black);
}

/* Warning Blocks */
.warning {

.warning {
  background: linear-gradient(135deg, #0a0a0a 0%, #151515 100%);
  border: 1px solid var(--border-gray);
  border-left: 3px solid var(--pure-white);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
  font-size: 0.95rem;
  line-height: var(--line-height-relaxed);
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-xxl: 2rem;
  }
  
  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }
  
  .nav-container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }
  
  .nav-links-main {
    gap: var(--space-lg);
  }
  
  h1 {
    font-size: 2rem;
  }
  
  .card {
    padding: var(--space-lg);
  }
  
  .contract-detail {
    flex-direction: column;
    gap: var(--space-xs);
  }
  
  .contract-label {
    min-width: auto;
  }
}

/* Micro-interactions */
.card {
  transition: box-shadow 0.3s ease;
}

.card:hover {
  box-shadow: var(--soft-shadow);
}

/* Print Styles */
@media print {
  .main-nav {
    display: none;
  }
  
  .container {
    padding-top: var(--space-lg);
  }
  
  .btn {
    display: none;
  }
}