:root {
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-sidebar: #0f172a;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-inverse: #f8fafc;
  --primary-cyan: #06b6d4;
  --primary-cyan-hover: #0891b2;
  --accent-violet: #8b5cf6;
  --accent-violet-hover: #7c3aed;
  --border-color: #e2e8f0;
  --border-focus: #06b6d4;
  --badge-warning: #f59e0b;
  --badge-danger: #ef4444;
  --badge-success: #10b981;
  --badge-info: #3b82f6;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Layout */
#app-container {
  display: flex;
  width: 100%;
  height: 100%;
}

/* Sidebar Navigation */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  color: var(--text-inverse);
  display: flex;
  flex-direction: column;
  border-right: 1px solid #1e293b;
}

.sidebar-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid #1e293b;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sidebar-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary-cyan), var(--accent-violet));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #fff;
  font-size: 1.1rem;
}

.sidebar-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.sidebar-subtitle {
  font-size: 0.75rem;
  color: #94a3b8;
  margin-top: 2px;
}

.sidebar-nav {
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: #94a3b8;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.15s ease;
}

.nav-item:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: #f8fafc;
}

.nav-item.active {
  background: linear-gradient(90deg, rgba(6, 182, 212, 0.15), rgba(139, 92, 246, 0.15));
  color: var(--primary-cyan);
  border-left: 3px solid var(--primary-cyan);
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid #1e293b;
  font-size: 0.8rem;
  color: #64748b;
}

/* Main Content Area */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.top-bar {
  height: 64px;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  box-shadow: var(--shadow-sm);
}

.top-bar-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.top-bar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.content-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}

.btn-primary {
  background-color: var(--primary-cyan);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--primary-cyan-hover);
}

.btn-secondary {
  background-color: #ffffff;
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: #f1f5f9;
}

.btn-accent {
  background-color: var(--accent-violet);
  color: #ffffff;
}

.btn-accent:hover {
  background-color: var(--accent-violet-hover);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  font-size: 0.725rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-info { background-color: #dbeafe; color: #1e40af; }
.badge-warning { background-color: #fef3c7; color: #92400e; }
.badge-danger { background-color: #fee2e2; color: #991b1b; }
.badge-success { background-color: #d1fae5; color: #065f46; }
.badge-secondary { background-color: #f1f5f9; color: #475569; }

/* Cards & Grid */
.card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.25rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Data Tables */
.table-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.table th {
  background-color: #f1f5f9;
  color: #475569;
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.table tr.heading-row {
  background-color: #0f172a;
  color: #ffffff;
  font-weight: 700;
}

.table tr.heading-row td {
  color: #ffffff;
}

.table tr.subtotal-row {
  background-color: #e0f2fe;
  font-weight: 700;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(15, 23, 42, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  width: 540px;
  max-width: 90vw;
  box-shadow: var(--shadow-md);
}

/* Canvas Viewer */
.canvas-viewer-container {
  position: relative;
  width: 100%;
  height: 600px;
  background-color: #0f172a;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.canvas-toolbar {
  position: absolute;
  top: 1rem; left: 1rem;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(4px);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  display: flex;
  gap: 0.5rem;
  z-index: 10;
}

.canvas-toolbar button {
  background: #1e293b;
  color: #fff;
  border: 1px solid #334155;
  padding: 0.35rem 0.65rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
}

/* ---------------- Drawing ingestion: full-screen, step-by-step ---------------- */
.ing-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(15, 23, 42, .72); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center; padding: 16px; animation: ing-fade .25s ease-out; }
@keyframes ing-fade { from { opacity: 0; } to { opacity: 1; } }
.ing-card { width: min(1120px, 100%); height: min(680px, calc(100vh - 32px)); background: var(--bg-card); border-radius: 18px;
  box-shadow: 0 30px 80px rgba(2, 6, 23, .45); display: grid; grid-template-columns: 1.25fr 1fr; overflow: hidden; }
@media (max-width: 860px) { .ing-card { grid-template-columns: 1fr; grid-template-rows: 220px 1fr; } }
.ing-stage { position: relative; background: #0b1530; overflow: hidden; min-height: 0; }
.ing-stage::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(56, 189, 248, .09) 1px, transparent 1px), linear-gradient(90deg, rgba(56, 189, 248, .09) 1px, transparent 1px),
  linear-gradient(rgba(56, 189, 248, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(56, 189, 248, .04) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 16px 16px, 16px 16px; }
.ing-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.ing-scan { position: absolute; left: 0; right: 0; height: 90px; top: -90px; pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(34, 211, 238, .16) 70%, rgba(34, 211, 238, .55) 100%);
  border-bottom: 1px solid rgba(103, 232, 249, .9); animation: ing-scan 2.6s linear infinite; }
@keyframes ing-scan { to { top: 100%; } }
.ing-stage.done .ing-scan { display: none; }
.ing-file { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); text-align: center; color: #e0f2fe; transition: opacity .5s; }
.ing-file .ing-doc { width: 92px; height: 116px; margin: 0 auto 14px; border-radius: 10px; position: relative;
  background: linear-gradient(160deg, #1e3a8a, #0e7490); box-shadow: 0 0 0 1px rgba(103, 232, 249, .5), 0 0 40px rgba(34, 211, 238, .35);
  animation: ing-pulse 1.6s ease-in-out infinite; display: grid; place-items: center; font-weight: 800; font-size: 20px; letter-spacing: 1px; }
@keyframes ing-pulse { 50% { transform: translateY(-6px); box-shadow: 0 0 0 1px rgba(103, 232, 249, .8), 0 0 60px rgba(34, 211, 238, .55); } }
.ing-file .ing-name { font-size: 13px; opacity: .85; max-width: 320px; word-break: break-all; }
.ing-caption { position: absolute; left: 16px; bottom: 14px; right: 16px; color: #bae6fd; font-size: 12px; display: flex; gap: 8px; align-items: center;
  text-shadow: 0 1px 2px #000; }
.ing-caption .dot { width: 8px; height: 8px; border-radius: 50%; background: #22d3ee; box-shadow: 0 0 8px #22d3ee; animation: ing-blink 1s infinite; }
@keyframes ing-blink { 50% { opacity: .25; } }
.ing-side { padding: 22px 22px 18px; display: flex; flex-direction: column; min-height: 0; overflow: hidden; }
.ing-title { font-size: 18px; font-weight: 800; color: var(--text-main); }
.ing-sub { font-size: 12.5px; color: var(--text-muted); margin-top: 2px; word-break: break-all; }
.ing-bar { height: 8px; border-radius: 99px; background: #e2e8f0; margin: 14px 0 6px; overflow: hidden; }
.ing-bar > div { height: 100%; width: 0; border-radius: 99px; background: linear-gradient(90deg, var(--primary-cyan), var(--accent-violet));
  transition: width .45s ease; }
.ing-pct { font-size: 12px; color: var(--text-muted); display: flex; justify-content: space-between; }
.ing-steps { list-style: none; margin: 12px 0 0; overflow-y: auto; flex: 1 1 auto; min-height: 60px; padding-right: 4px; }
.ing-step { display: grid; grid-template-columns: 22px 1fr; gap: 10px; padding: 6px 0; font-size: 13.5px; color: #94a3b8; transition: color .3s; }
.ing-step .ic { width: 20px; height: 20px; border-radius: 50%; border: 2px solid #cbd5e1; display: grid; place-items: center; font-size: 11px; margin-top: 1px; }
.ing-step.active { color: var(--text-main); font-weight: 700; }
.ing-step.active .ic { border-color: var(--primary-cyan); border-top-color: transparent; animation: ing-spin .8s linear infinite; }
@keyframes ing-spin { to { transform: rotate(360deg); } }
.ing-step.done { color: var(--text-main); }
.ing-step.done .ic { background: var(--badge-success); border-color: var(--badge-success); color: #fff; }
.ing-step.done .ic::after { content: "✓"; }
.ing-step.skipped { opacity: .45; }
.ing-step.skipped .ic::after { content: "–"; color: #94a3b8; }
.ing-step.failed { color: var(--badge-danger); font-weight: 700; }
.ing-step.failed .ic { background: var(--badge-danger); border-color: var(--badge-danger); color: #fff; }
.ing-step.failed .ic::after { content: "!"; }
.ing-step .det { display: block; font-weight: 500; font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.ing-finds { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; flex: 0 0 auto; }
.ing-chip { font-size: 12px; font-weight: 700; padding: 5px 10px; border-radius: 99px; background: #ecfeff; color: #0e7490;
  border: 1px solid #a5f3fc; animation: ing-pop .35s cubic-bezier(.2, 1.4, .4, 1); }
.ing-chip.warn { background: #fffbeb; color: #b45309; border-color: #fde68a; }
@keyframes ing-pop { from { transform: scale(.6); opacity: 0; } to { transform: none; opacity: 1; } }
.ing-summary { flex: 0 0 auto; max-height: 55%; overflow-y: auto; margin-top: 12px; border-top: 1px solid var(--border-color); padding-top: 12px; }
.ing-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.ing-kpi { background: #f1f5f9; border-radius: 10px; padding: 9px 10px; }
.ing-kpi b { display: block; font-size: 19px; color: var(--text-main); }
.ing-kpi span { font-size: 11.5px; color: var(--text-muted); }
.ing-verdict { margin-top: 10px; font-size: 12.5px; padding: 8px 10px; border-radius: 8px; background: #fffbeb; color: #92400e; }
.ing-verdict.ok { background: #ecfdf5; color: #065f46; }
.ing-verdict.err { background: #fef2f2; color: #991b1b; }
.ing-checks { margin-top: 8px; max-height: 150px; overflow-y: auto; font-size: 12px; }
.ing-checks div { padding: 3px 0; color: var(--text-muted); }
.ing-checks b { color: var(--text-main); }
.ing-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 12px; flex-wrap: wrap; }
@media (prefers-reduced-motion: reduce) {
  .ing-scan, .ing-file .ing-doc, .ing-caption .dot, .ing-step.active .ic, .ing-chip { animation: none !important; }
}

.ing-steps.folded { display: none; }
.ing-steps.folded.open { display: block; flex: 0 1 auto; max-height: 180px; }
.ing-fold { margin-top: 12px; align-self: flex-start; border: 0; background: #ecfdf5; color: #065f46; font-weight: 700; font-size: 12.5px;
  padding: 6px 10px; border-radius: 8px; cursor: pointer; display: inline-flex; gap: 6px; align-items: center; }
.ing-fold span { color: #047857; text-decoration: underline; font-weight: 600; }
.ing-summary { flex: 1 1 auto; max-height: none; }