/* ============================================================
   Cortexa Flow - Corestria Design System
   Primary Navy: #0D1F30 | Accent Teal: #00A406 (corrected to teal)
   ============================================================ */

:root {
  --c-primary-navy: #0D1F30;
  --c-secondary-blue: #143963;
  --c-accent-teal: #00A693;
  --c-accent-teal-light: #1FB8A4;
  --c-light-blue: #E0F0FF;
  --c-bg: #F8FAFC;
  --c-surface: #FFFFFF;
  --c-border: #E2E8F0;
  --c-text-primary: #1A2230;
  --c-text-secondary: #64748B;
  --c-text-tertiary: #94A3B8;
  --c-success: #16A34A;
  --c-warning: #F59E0B;
  --c-danger: #DC2626;
  --c-info: #3B82F6;

  /* Confidence colors */
  --c-conf-high: #16A34A;
  --c-conf-medium: #F59E0B;
  --c-conf-low: #DC2626;
}

* { box-sizing: border-box; }

html, body, #app-root {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--c-bg);
  color: var(--c-text-primary);
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 { font-family: 'Inter', sans-serif; color: var(--c-text-primary); }

/* === Brand Gradients === */
.cf-gradient-primary {
  background: linear-gradient(135deg, var(--c-primary-navy) 0%, var(--c-secondary-blue) 50%, var(--c-accent-teal) 100%);
}
.cf-gradient-button {
  background: linear-gradient(90deg, var(--c-primary-navy) 0%, var(--c-secondary-blue) 50%, var(--c-accent-teal) 100%);
}
.cf-gradient-sphere {
  background: radial-gradient(circle at 30% 30%, #4A90E2 0%, var(--c-secondary-blue) 35%, var(--c-primary-navy) 100%);
}

/* === Login Screen === */
.cf-login {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 900px) {
  .cf-login { grid-template-columns: 1fr; }
  .cf-login-right { display: none !important; }
}
.cf-login-left {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 48px 64px;
  background: #fff;
}
.cf-login-right {
  position: relative;
  overflow: hidden;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cf-login-sphere {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 50%, #4A90E2 0%, #143963 30%, #0D1F30 70%);
  clip-path: circle(60% at 70% 50%);
}
.cf-login-card {
  position: relative;
  z-index: 2;
  background: #fff;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 30px 80px rgba(13, 31, 48, 0.25);
  width: 320px;
}
.cf-login-tagline {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  color: white;
  font-size: 24px;
  font-weight: 600;
  z-index: 2;
  text-align: center;
  line-height: 1.4;
}

/* === Buttons === */
.cf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
}
.cf-btn-primary {
  background: linear-gradient(90deg, var(--c-primary-navy) 0%, var(--c-secondary-blue) 50%, var(--c-accent-teal) 100%);
  color: white;
}
.cf-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(13,31,48,0.25); }
.cf-btn-secondary {
  background: white;
  color: var(--c-primary-navy);
  border: 1px solid var(--c-border);
}
.cf-btn-secondary:hover { border-color: var(--c-primary-navy); }
.cf-btn-text {
  background: transparent;
  color: var(--c-primary-navy);
  padding: 8px 12px;
}
.cf-btn-text:hover { background: var(--c-light-blue); }
.cf-btn-danger { background: var(--c-danger); color: white; }
.cf-btn-sm { padding: 6px 12px; font-size: 12px; }
.cf-btn-lg { padding: 14px 24px; font-size: 16px; }

/* === Inputs === */
.cf-input, .cf-select, .cf-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  font-family: inherit;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  background: white;
  color: var(--c-text-primary);
  transition: border-color 0.15s ease;
}
.cf-input:focus, .cf-select:focus, .cf-textarea:focus {
  outline: none;
  border-color: var(--c-accent-teal);
  box-shadow: 0 0 0 3px rgba(0, 166, 147, 0.1);
}
.cf-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-text-secondary);
  margin-bottom: 6px;
}

/* === Cards === */
.cf-card {
  background: white;
  border: 1px solid var(--c-border);
  border-radius: 12px;
  padding: 24px;
}
.cf-card-hover { transition: all 0.15s ease; cursor: pointer; }
.cf-card-hover:hover { border-color: var(--c-accent-teal); box-shadow: 0 8px 24px rgba(13,31,48,0.06); transform: translateY(-2px); }

/* === Badges === */
.cf-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}
.cf-badge-blue   { background: #DBEAFE; color: #1E40AF; }
.cf-badge-green  { background: #DCFCE7; color: #166534; }
.cf-badge-amber  { background: #FEF3C7; color: #92400E; }
.cf-badge-red    { background: #FEE2E2; color: #991B1B; }
.cf-badge-gray   { background: #F1F5F9; color: #475569; }
.cf-badge-teal   { background: #CCFBF1; color: #115E59; }

/* === Layout === */
.cf-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}
@media (max-width: 900px) {
  .cf-shell { grid-template-columns: 1fr; }
  .cf-sidebar { display: none !important; }
}
.cf-sidebar {
  background: var(--c-primary-navy);
  color: white;
  display: flex;
  flex-direction: column;
  padding: 24px 0;
}
.cf-sidebar-logo {
  padding: 0 24px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.cf-sidebar-nav { flex: 1; padding: 16px 0; }
.cf-sidebar-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  color: rgba(255,255,255,0.7);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: all 0.15s ease;
}
.cf-sidebar-item:hover { background: rgba(255,255,255,0.05); color: white; }
.cf-sidebar-item.active {
  background: rgba(0,166,147,0.15);
  color: white;
  border-left-color: var(--c-accent-teal);
}
.cf-sidebar-user {
  padding: 16px 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  gap: 12px;
}
.cf-sidebar-poweredby {
  padding: 16px 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 11px;
  color: rgba(255,255,255,0.5);
}

.cf-main { background: var(--c-bg); overflow-x: hidden; }
.cf-topbar {
  background: white;
  border-bottom: 1px solid var(--c-border);
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.cf-topbar-title { font-size: 20px; font-weight: 700; }
.cf-content { padding: 32px; max-width: 1400px; }

/* === Banner === */
.cf-banner {
  background: linear-gradient(135deg, var(--c-primary-navy) 0%, var(--c-secondary-blue) 60%, var(--c-accent-teal) 100%);
  color: white;
  padding: 28px 32px;
  border-radius: 12px;
  margin-bottom: 24px;
}
.cf-banner-title { font-size: 24px; font-weight: 700; margin: 4px 0; }
.cf-banner-sub { opacity: 0.8; font-size: 14px; }

/* === Stat cards === */
.cf-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.cf-stat {
  background: white;
  border: 1px solid var(--c-border);
  border-radius: 12px;
  padding: 20px;
}
.cf-stat-label { font-size: 12px; color: var(--c-text-secondary); text-transform: uppercase; font-weight: 600; letter-spacing: 0.05em; }
.cf-stat-value { font-size: 32px; font-weight: 700; margin-top: 6px; color: var(--c-primary-navy); }
.cf-stat-value.success { color: var(--c-success); }
.cf-stat-value.warning { color: var(--c-warning); }
.cf-stat-value.danger { color: var(--c-danger); }

/* === Tables/Lists === */
.cf-list { background: white; border: 1px solid var(--c-border); border-radius: 12px; overflow: hidden; }
.cf-list-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--c-border);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.cf-list-row {
  padding: 14px 20px;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: background 0.15s;
}
.cf-list-row:last-child { border-bottom: none; }
.cf-list-row:hover { background: #F8FAFC; }
.cf-list-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--c-light-blue);
  display: flex; align-items: center; justify-content: center;
  color: var(--c-secondary-blue);
}

/* === Canvas / React Flow === */
.cf-canvas-shell {
  position: relative;
  height: calc(100vh - 64px);
  background: #F1F5F9;
  background-image:
    linear-gradient(rgba(13,31,48,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13,31,48,0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  overflow: hidden;
}
.cf-canvas-toolbar {
  position: absolute;
  top: 16px;
  left: 16px;
  background: white;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 8px;
  display: flex;
  gap: 4px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  z-index: 10;
}
.cf-canvas-toolbar button {
  background: transparent;
  border: none;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--c-text-primary);
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}
.cf-canvas-toolbar button:hover { background: var(--c-bg); }
.cf-canvas-toolbar button.active { background: var(--c-light-blue); color: var(--c-secondary-blue); }

.cf-canvas-zoom {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: white;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 4px;
  display: flex;
  gap: 2px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  z-index: 10;
}
.cf-canvas-zoom button {
  background: transparent; border: none;
  width: 32px; height: 32px;
  border-radius: 6px; cursor: pointer;
  color: var(--c-text-primary);
}
.cf-canvas-zoom button:hover { background: var(--c-bg); }

.cf-canvas-viewport {
  position: absolute;
  inset: 0;
  cursor: grab;
}
.cf-canvas-viewport.grabbing { cursor: grabbing; }
.cf-canvas-inner {
  position: absolute;
  transform-origin: 0 0;
  width: 100%;
  height: 100%;
}

/* === Process Nodes === */
.cf-node {
  position: absolute;
  background: white;
  border: 2px solid var(--c-border);
  border-radius: 10px;
  padding: 12px 14px;
  min-width: 180px;
  min-height: 70px;
  box-shadow: 0 2px 8px rgba(13,31,48,0.08);
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
}
.cf-node:hover { box-shadow: 0 6px 16px rgba(13,31,48,0.12); border-color: var(--c-accent-teal); }
.cf-node.selected { border-color: var(--c-accent-teal); box-shadow: 0 0 0 3px rgba(0,166,147,0.2); }
.cf-node-label { font-weight: 600; font-size: 13px; color: var(--c-primary-navy); line-height: 1.3; }
.cf-node-meta { font-size: 10px; color: var(--c-text-secondary); margin-top: 6px; display: flex; flex-wrap: wrap; gap: 4px; }
.cf-node-meta-pill { background: var(--c-bg); padding: 2px 6px; border-radius: 4px; }

/* Node types */
.cf-node.type-start, .cf-node.type-end {
  border-radius: 999px;
  background: var(--c-primary-navy);
  color: white;
  text-align: center;
  min-width: 140px;
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cf-node.type-start .cf-node-label, .cf-node.type-end .cf-node-label { color: white; }
.cf-node.type-end { background: var(--c-accent-teal); }
.cf-node.type-decision {
  background: #FEF3C7;
  border-color: #F59E0B;
  transform: rotate(0deg);
  text-align: center;
}
.cf-node.type-decision .cf-node-label { color: #92400E; }

/* Confidence dot */
.cf-conf-dot {
  position: absolute;
  top: -6px; right: -6px;
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 2px solid white;
}
.cf-conf-high { background: var(--c-conf-high); }
.cf-conf-medium { background: var(--c-conf-medium); }
.cf-conf-low { background: var(--c-conf-low); }

/* === SVG link layer === */
.cf-link-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: visible;
}
.cf-link-path {
  fill: none;
  stroke: #64748B;
  stroke-width: 2;
  marker-end: url(#cf-arrow);
}
.cf-link-label {
  fill: var(--c-text-secondary);
  font-size: 11px;
  font-weight: 600;
  background: white;
}

/* === Side Panel === */
.cf-side-panel {
  position: fixed;
  top: 0; right: 0;
  width: 400px;
  height: 100vh;
  background: white;
  border-left: 1px solid var(--c-border);
  box-shadow: -8px 0 24px rgba(13,31,48,0.08);
  z-index: 50;
  display: flex;
  flex-direction: column;
}
.cf-side-panel-header {
  padding: 20px;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.cf-side-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}
.cf-side-panel-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--c-border);
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* === Modal === */
.cf-modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(13,31,48,0.5);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cf-modal {
  background: white;
  border-radius: 12px;
  width: 600px;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}
.cf-modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.cf-modal-body { padding: 24px; overflow-y: auto; flex: 1; }
.cf-modal-footer { padding: 16px 24px; border-top: 1px solid var(--c-border); display: flex; gap: 8px; justify-content: flex-end; }

/* === Misc === */
.cf-divider { height: 1px; background: var(--c-border); margin: 16px 0; }
.cf-empty { padding: 48px; text-align: center; color: var(--c-text-secondary); }
.cf-spinner {
  border: 3px solid var(--c-border);
  border-top-color: var(--c-accent-teal);
  border-radius: 50%;
  width: 24px; height: 24px;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* === Corestria logo hex === */
.cf-logo-hex {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--c-primary-navy) 0%, var(--c-accent-teal) 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 16px;
  position: relative;
  clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
}
.cf-logo-text { font-weight: 700; font-size: 18px; color: var(--c-primary-navy); }
.cf-logo-sub { font-size: 9px; color: var(--c-text-secondary); letter-spacing: 0.1em; text-transform: uppercase; }

/* Scrollbar */
.cf-side-panel-body::-webkit-scrollbar { width: 8px; }
.cf-side-panel-body::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 4px; }

/* Confidence legend on canvas */
.cf-legend {
  position: absolute;
  top: 16px;
  right: 16px;
  background: white;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  z-index: 10;
}
.cf-legend-row { display: flex; align-items: center; gap: 8px; margin: 2px 0; color: var(--c-text-secondary); }
.cf-legend-dot { width: 10px; height: 10px; border-radius: 50%; }