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

:root {
  --primary: #1a1a2e;
  --accent: #4361ee;
  --accent-hover: #3a56d4;
  --bg: #f5f5f7;
  --card: #ffffff;
  --text: #1a1a2e;
  --muted: #6b7280;
  --border: #e5e7eb;
  --sender: #4361ee;
  --recipient: #e63946;
  --success: #10b981;
  --danger: #e63946;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

header {
  background: var(--primary);
  color: white;
  padding: 20px 30px;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.tagline {
  font-size: 13px;
  opacity: 0.6;
  margin-top: 2px;
}

main {
  max-width: 960px;
  margin: 30px auto;
  padding: 0 20px;
}

main.workspace-mode {
  max-width: 1100px;
}

.card {
  background: var(--card);
  border-radius: 10px;
  padding: 28px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}

h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

.hint {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 16px;
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--muted);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

input[type="text"],
input[type="email"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.15s;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: white;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}

.btn:hover { background: var(--bg); }

.btn-sm { padding: 5px 12px; font-size: 12px; }

.btn-primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  margin-top: 8px;
}

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

.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: #fef2f2; }

.btn-success {
  background: var(--success);
  color: white;
  border-color: var(--success);
}

.source-toggle {
  display: flex;
  gap: 8px;
}

.source-toggle .btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* PDF Viewer - layout with floating sidebar */
.pdf-workspace {
  display: flex;
  gap: 16px;
  position: relative;
}

#pdf-container {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: #e5e5e5;
  flex: 1;
  min-width: 0;
}

#pdf-container canvas {
  display: block;
  width: 100%;
  cursor: none;
}

.sig-pad-container canvas {
  cursor: crosshair !important;
}

/* Round target cursor */
.target-cursor {
  position: fixed;
  width: 28px;
  height: 28px;
  border: 2.5px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 100;
  transform: translate(-50%, -50%);
  display: none;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.5);
}

.target-cursor::before,
.target-cursor::after {
  content: '';
  position: absolute;
  background: var(--accent);
}

.target-cursor::before {
  width: 2px;
  height: 10px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.target-cursor::after {
  width: 10px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.target-cursor.recipient-mode {
  border-color: var(--recipient);
}

.target-cursor.recipient-mode::before,
.target-cursor.recipient-mode::after {
  background: var(--recipient);
}

/* Field markers on PDF */
.field-marker {
  position: absolute;
  border: 2px solid;
  border-radius: 5px;
  display: flex;
  align-items: center;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 600;
  cursor: grab;
  transition: box-shadow 0.15s, background 0.15s;
  z-index: 10;
  backdrop-filter: blur(2px);
  transform: translate(-50%, -50%);
  user-select: none;
}

.field-marker.dragging {
  cursor: grabbing;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  z-index: 20;
  opacity: 0.9;
}

.field-marker.sender {
  border-color: #22c55e;
  background: rgba(34, 197, 94, 0.15);
  color: #15803d;
  box-shadow: 0 1px 4px rgba(34, 197, 94, 0.25);
}

.field-marker.recipient {
  border-color: #f59e0b;
  background: rgba(245, 158, 11, 0.15);
  color: #b45309;
  box-shadow: 0 1px 4px rgba(245, 158, 11, 0.25);
}

.field-marker .remove-field {
  margin-left: 6px;
  cursor: pointer;
  opacity: 0.5;
  font-weight: bold;
}

.field-marker .remove-field:hover { opacity: 1; }

.page-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 8px 0;
}

#page-indicator {
  font-size: 13px;
  color: var(--muted);
}

/* Field summary */
#field-summary {
  margin: 16px 0;
  font-size: 13px;
}

.field-summary-item {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  margin: 2px 4px;
  font-size: 12px;
}

.field-summary-item.sender {
  background: rgba(34, 197, 94, 0.1);
  color: #15803d;
}

.field-summary-item.recipient {
  background: rgba(245, 158, 11, 0.1);
  color: #b45309;
}

/* Sign page */
.sign-header {
  text-align: center;
  margin-bottom: 24px;
}

.sign-header h2 { margin-bottom: 4px; }

.status-badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.status-badge.draft { background: #f3f4f6; color: var(--muted); }
.status-badge.awaiting { background: #fef3c7; color: #92400e; }
.status-badge.completed { background: #d1fae5; color: #065f46; }

.field-input-group {
  margin-bottom: 20px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fafafa;
}

.field-input-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text);
}

.field-input-group .page-ref {
  font-size: 11px;
  color: var(--muted);
  margin-left: 8px;
}

/* Signature pad */
.sig-pad-container {
  border: 2px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: white;
  margin-top: 4px;
}

.sig-pad-container canvas {
  display: block;
  width: 100%;
  height: 120px;
  cursor: crosshair;
}

.sig-pad-actions {
  display: flex;
  justify-content: flex-end;
  padding: 4px 8px;
  background: #f9f9f9;
  border-top: 1px solid var(--border);
}

/* Attestation */
.attestation {
  margin: 24px 0;
  padding: 16px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 8px;
}

.attestation label {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
  cursor: pointer;
}

.attestation input[type="checkbox"] {
  margin-top: 3px;
  flex-shrink: 0;
}

/* Documents table */
.doc-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 120px;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
  font-size: 14px;
}

.doc-row:last-child { border-bottom: none; }

.doc-row .title { font-weight: 500; }
.doc-row .meta { color: var(--muted); font-size: 12px; }

.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--muted);
  font-size: 14px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--primary);
  color: white;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 1000;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Responsive */
@media (max-width: 768px) {
  .form-row { grid-template-columns: 1fr; }
  .doc-row { grid-template-columns: 1fr 1fr; }
  .pdf-workspace { flex-direction: column; }
  .toolbar-sidebar {
    position: static;
    transform: none;
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }
}

/* Floating Toolbar Sidebar */
.toolbar-sidebar {
  position: sticky;
  top: 50%;
  transform: translateY(-50%);
  width: 180px;
  flex-shrink: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  z-index: 20;
  align-self: flex-start;
}

.toolbar-sidebar h3 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  margin: 0;
}

.tool-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.tool-group label {
  font-size: 11px;
  color: var(--muted);
  font-weight: 500;
}

.tool-group select, .tool-group input {
  width: 100%;
  padding: 6px 8px;
  font-size: 12px;
}

.toolbar-sidebar .btn {
  width: 100%;
  text-align: center;
  font-size: 12px;
}

/* Color legend in toolbar */
.color-legend {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  padding: 6px 0;
  border-top: 1px solid var(--border);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.legend-dot.sender { background: #22c55e; }
.legend-dot.recipient { background: #f59e0b; }

/* Inline field overlays on signing page */
#pdf-preview-container {
  position: relative;
}

.inline-field-overlay {
  position: absolute;
  z-index: 10;
  transform: translate(-50%, -50%);
}

.inline-field-overlay input {
  border: 2px solid var(--accent);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 12px;
  background: rgba(255, 255, 255, 0.92);
  font-family: inherit;
  width: 150px;
  box-shadow: 0 1px 4px rgba(67, 97, 238, 0.2);
}

.inline-field-overlay input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
  background: white;
}

.inline-field-overlay.signature-overlay {
  cursor: pointer;
}

.inline-field-overlay .sig-placeholder {
  border: 2px dashed var(--accent);
  border-radius: 4px;
  padding: 6px 16px;
  font-size: 11px;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.92);
  text-align: center;
  min-width: 150px;
}

.inline-field-overlay .sig-placeholder.signed {
  border-style: solid;
  border-color: var(--success);
  color: var(--success);
  background: rgba(16, 185, 129, 0.08);
}

.inline-field-label {
  font-size: 9px;
  color: var(--accent);
  font-weight: 600;
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  background: rgba(255,255,255,0.8);
  padding: 0 4px;
  border-radius: 2px;
}

/* Completed page */
.completed-banner {
  text-align: center;
  padding: 40px;
}

.completed-banner .checkmark {
  font-size: 48px;
  margin-bottom: 16px;
}

.completed-banner h2 {
  color: var(--success);
  margin-bottom: 8px;
}