/* ==========================================================================
   KINETIX CRYPTO PLATFORM - CORE STYLESHEET
   Design System, Components, Public & Shared Layouts
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --knx-bg: #090C12;
  --knx-surface: #101522;
  --knx-surface-elevated: #161D2E;
  --knx-surface-hover: #1E273D;
  --knx-surface-active: #25314C;
  --knx-border: rgba(255, 255, 255, 0.08);
  --knx-border-strong: rgba(255, 255, 255, 0.16);
  --knx-border-focus: rgba(99, 102, 241, 0.6);
  
  --knx-text: #F8FAFC;
  --knx-text-secondary: #94A3B8;
  --knx-text-muted: #64748B;
  
  --knx-accent: #6366F1;
  --knx-accent-hover: #4F46E5;
  --knx-accent-light: rgba(99, 102, 241, 0.12);
  
  --knx-positive: #00D26A;
  --knx-positive-hover: #00B359;
  --knx-positive-bg: rgba(0, 210, 106, 0.12);
  --knx-positive-border: rgba(0, 210, 106, 0.25);
  
  --knx-negative: #F43F5E;
  --knx-negative-hover: #E11D48;
  --knx-negative-bg: rgba(244, 63, 94, 0.12);
  --knx-negative-border: rgba(244, 63, 94, 0.25);
  
  --knx-warning: #F59E0B;
  --knx-warning-bg: rgba(245, 158, 11, 0.12);
  
  --knx-font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --knx-font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  --knx-radius-sm: 6px;
  --knx-radius-md: 10px;
  --knx-radius-lg: 14px;
  --knx-radius-xl: 20px;
  
  --knx-shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
  --knx-shadow-dropdown: 0 12px 36px rgba(0, 0, 0, 0.65);
}

/* Base Reset & Typography */
* {
  box-sizing: border-box;
}

body {
  background-color: var(--knx-bg);
  color: var(--knx-text);
  font-family: var(--knx-font-sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--knx-text);
  font-weight: 700;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

a {
  color: var(--knx-accent);
  text-decoration: none;
  transition: color 0.15s ease, opacity 0.15s ease;
}

a:hover {
  color: #818CF8;
}

p {
  color: var(--knx-text-secondary);
}

.font-mono {
  font-family: var(--knx-font-mono) !important;
}

.tabular-nums {
  font-variant-numeric: tabular-nums !important;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--knx-bg);
}
::-webkit-scrollbar-thumb {
  background: #25314C;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #374768;
}

/* Utility Colors & Text */
.text-knx-muted { color: var(--knx-text-muted) !important; }
.text-knx-secondary { color: var(--knx-text-secondary) !important; }
.text-knx-primary { color: var(--knx-text) !important; }
.text-knx-positive { color: var(--knx-positive) !important; }
.text-knx-negative { color: var(--knx-negative) !important; }
.text-knx-accent { color: var(--knx-accent) !important; }

.bg-knx-bg { background-color: var(--knx-bg) !important; }
.bg-knx-surface { background-color: var(--knx-surface) !important; }
.bg-knx-elevated { background-color: var(--knx-surface-elevated) !important; }
.bg-knx-positive-subtle { background-color: var(--knx-positive-bg) !important; color: var(--knx-positive) !important; }
.bg-knx-negative-subtle { background-color: var(--knx-negative-bg) !important; color: var(--knx-negative) !important; }
.bg-knx-accent-subtle { background-color: var(--knx-accent-light) !important; color: var(--knx-accent) !important; }

.border-knx { border-color: var(--knx-border) !important; }
.border-knx-strong { border-color: var(--knx-border-strong) !important; }

/* Status Text Indicators (Zero-Pill Compliance) */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
}
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}
.status-dot.positive { background-color: var(--knx-positive); box-shadow: 0 0 8px var(--knx-positive); }
.status-dot.negative { background-color: var(--knx-negative); }
.status-dot.warning { background-color: var(--knx-warning); }
.status-dot.neutral { background-color: var(--knx-text-muted); }

/* Delta Badge (Structured subtle indicator, not candy pill) */
.delta-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--knx-font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  line-height: 1.3;
}
.delta-tag.up {
  color: var(--knx-positive);
  background: var(--knx-positive-bg);
  border: 1px solid var(--knx-positive-border);
}
.delta-tag.down {
  color: var(--knx-negative);
  background: var(--knx-negative-bg);
  border: 1px solid var(--knx-negative-border);
}

/* Card System */
.knx-card {
  background-color: var(--knx-surface);
  border: 1px solid var(--knx-border);
  border-radius: var(--knx-radius-lg);
  padding: 1.5rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
  position: relative;
}
.knx-card:hover {
  border-color: rgba(255, 255, 255, 0.14);
}
.knx-card-elevated {
  background-color: var(--knx-surface-elevated);
  border: 1px solid var(--knx-border);
  border-radius: var(--knx-radius-lg);
  padding: 1.5rem;
}
.knx-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--knx-border);
}
.knx-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--knx-text);
  margin: 0;
}

/* Buttons */
.knx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--knx-font-sans);
  font-size: 14px;
  font-weight: 600;
  padding: 0.55rem 1.25rem;
  border-radius: var(--knx-radius-md);
  border: 1px solid transparent;
  transition: all 0.15s ease;
  white-space: nowrap;
  cursor: pointer;
  line-height: 1.4;
}
.knx-btn:focus-visible {
  outline: 2px solid var(--knx-accent);
  outline-offset: 2px;
}
.knx-btn-primary {
  background-color: var(--knx-accent);
  color: #FFFFFF;
  border-color: var(--knx-accent);
}
.knx-btn-primary:hover {
  background-color: var(--knx-accent-hover);
  color: #FFFFFF;
  border-color: var(--knx-accent-hover);
}
.knx-btn-secondary {
  background-color: var(--knx-surface-elevated);
  color: var(--knx-text);
  border-color: var(--knx-border);
}
.knx-btn-secondary:hover {
  background-color: var(--knx-surface-hover);
  border-color: var(--knx-border-strong);
  color: var(--knx-text);
}
.knx-btn-outline {
  background-color: transparent;
  color: var(--knx-text);
  border-color: var(--knx-border);
}
.knx-btn-outline:hover {
  background-color: var(--knx-surface-hover);
  border-color: var(--knx-border-strong);
  color: var(--knx-text);
}
.knx-btn-success {
  background-color: var(--knx-positive);
  color: #0A0D14;
  font-weight: 700;
}
.knx-btn-success:hover {
  background-color: var(--knx-positive-hover);
  color: #0A0D14;
}
.knx-btn-danger {
  background-color: var(--knx-negative);
  color: #FFFFFF;
  font-weight: 700;
}
.knx-btn-danger:hover {
  background-color: var(--knx-negative-hover);
  color: #FFFFFF;
}
.knx-btn-sm {
  padding: 0.35rem 0.85rem;
  font-size: 12px;
  border-radius: var(--knx-radius-sm);
}
.knx-btn-lg {
  padding: 0.75rem 1.75rem;
  font-size: 15px;
  border-radius: var(--knx-radius-md);
}

/* Forms & Inputs */
.knx-input-group {
  position: relative;
  display: flex;
  align-items: center;
}
.knx-input {
  width: 100%;
  background-color: var(--knx-surface-elevated);
  border: 1px solid var(--knx-border);
  color: var(--knx-text);
  border-radius: var(--knx-radius-md);
  padding: 0.65rem 1rem;
  font-size: 14px;
  font-family: var(--knx-font-sans);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.knx-input:focus {
  outline: none;
  border-color: var(--knx-accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
  color: var(--knx-text);
  background-color: var(--knx-surface-elevated);
}
.knx-input::placeholder {
  color: var(--knx-text-muted);
}
.knx-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--knx-text-secondary);
  margin-bottom: 0.4rem;
}
.knx-select {
  appearance: none;
  background-color: var(--knx-surface-elevated);
  border: 1px solid var(--knx-border);
  color: var(--knx-text);
  border-radius: var(--knx-radius-md);
  padding: 0.65rem 2.25rem 0.65rem 1rem;
  font-size: 14px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px;
  cursor: pointer;
}
.knx-select:focus {
  outline: none;
  border-color: var(--knx-accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Data Tables */
.knx-table-container {
  overflow-x: auto;
  border-radius: var(--knx-radius-lg);
  border: 1px solid var(--knx-border);
  background-color: var(--knx-surface);
}
.knx-table {
  width: 100%;
  margin-bottom: 0;
  border-collapse: separate;
  border-spacing: 0;
  color: var(--knx-text);
}
.knx-table th {
  background-color: var(--knx-surface-elevated);
  color: var(--knx-text-secondary);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--knx-border);
  white-space: nowrap;
}
.knx-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--knx-border);
  vertical-align: middle;
  font-size: 14px;
  white-space: nowrap;
  background-color: var(--knx-surface);
  transition: background-color 0.15s ease;
}
.knx-table tr:last-child td {
  border-bottom: none;
}
.knx-table tr:hover td {
  background-color: var(--knx-surface-elevated);
}

/* Coin Asset Cell */
.coin-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}
.coin-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: contain;
}
.coin-name {
  font-weight: 600;
  color: var(--knx-text);
  line-height: 1.2;
}
.coin-symbol {
  font-size: 12px;
  color: var(--knx-text-muted);
  font-family: var(--knx-font-mono);
}

/* Public Top Navigation Bar (3-Zone Contract) */
.knx-navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(9, 12, 18, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--knx-border);
  padding: 0.85rem 0;
}
.brand-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.03em;
}
.brand-mark svg, .brand-mark .brand-logo-icon {
  width: 28px;
  height: 28px;
  color: var(--knx-accent);
}
.nav-link-custom {
  color: var(--knx-text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: 0.5rem 0.85rem;
  border-radius: var(--knx-radius-sm);
  transition: color 0.15s ease;
}
.nav-link-custom:hover {
  color: #FFFFFF;
}
.nav-link-custom.active {
  color: #FFFFFF;
  font-weight: 600;
}

/* Modals */
.modal-content.knx-modal {
  background-color: var(--knx-surface);
  border: 1px solid var(--knx-border-strong);
  border-radius: var(--knx-radius-xl);
  color: var(--knx-text);
  box-shadow: var(--knx-shadow-dropdown);
}
.modal-backdrop.show {
  opacity: 0.75;
  background-color: #05070A;
}

/* Toast System */
.knx-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 380px;
  pointer-events: none;
}
.knx-toast {
  pointer-events: auto;
  background-color: var(--knx-surface-elevated);
  border: 1px solid var(--knx-border-strong);
  color: var(--knx-text);
  border-radius: var(--knx-radius-md);
  padding: 12px 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  animation: toastIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  font-size: 13px;
}
.knx-toast.positive { border-left: 4px solid var(--knx-positive); }
.knx-toast.negative { border-left: 4px solid var(--knx-negative); }
.knx-toast.info { border-left: 4px solid var(--knx-accent); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(12px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Public Footer */
.knx-footer {
  background-color: #07090E;
  border-top: 1px solid var(--knx-border);
  padding: 4.5rem 0 2rem;
  margin-top: 5rem;
}
.footer-heading {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--knx-text);
  margin-bottom: 1.25rem;
}
.footer-link {
  display: block;
  font-size: 14px;
  color: var(--knx-text-secondary);
  margin-bottom: 0.65rem;
  transition: color 0.15s ease;
}
.footer-link:hover {
  color: #FFFFFF;
}

/* Segmented Control Buttons (Interactive filter controls) */
.segmented-control {
  display: inline-flex;
  align-items: center;
  background-color: var(--knx-surface-elevated);
  border: 1px solid var(--knx-border);
  padding: 3px;
  border-radius: var(--knx-radius-md);
  gap: 2px;
}
.segment-btn {
  background: transparent;
  border: none;
  color: var(--knx-text-secondary);
  font-size: 13px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: var(--knx-radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}
.segment-btn:hover {
  color: var(--knx-text);
}
.segment-btn.active {
  background-color: var(--knx-surface-active);
  color: #FFFFFF;
  font-weight: 600;
}

/* Dropdown Menu Dark Theme */
.dropdown-menu.knx-dropdown {
  background-color: var(--knx-surface-elevated);
  border: 1px solid var(--knx-border-strong);
  border-radius: var(--knx-radius-md);
  box-shadow: var(--knx-shadow-dropdown);
  padding: 0.5rem;
  color: var(--knx-text);
}
.dropdown-item.knx-dropdown-item {
  color: var(--knx-text-secondary);
  font-size: 13px;
  font-weight: 500;
  padding: 0.5rem 0.85rem;
  border-radius: var(--knx-radius-sm);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
}
.dropdown-item.knx-dropdown-item:hover {
  background-color: var(--knx-surface-hover);
  color: #FFFFFF;
}
.dropdown-divider.knx-divider {
  border-color: var(--knx-border);
  margin: 0.35rem 0;
}