:root {
  --bg: #f3f4f6;
  --panel: #ffffff;
  --border: #d8dce3;
  --text: #20242b;
  --muted: #667085;
  --accent: #2d64d8;
  --accent-dark: #214eae;
  --success-bg: #eaf7ec;
  --success-border: #7fbe88;
  --warning-bg: #fff5d8;
  --warning-border: #dec06b;
  --error-bg: #fdecec;
  --error-border: #ce7d7d;
  --neutral-bg: #f6f7f9;
  --neutral-border: #d8dce3;
  --shadow: 0 10px 30px rgba(20, 27, 40, 0.08);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}
button, input, textarea { font: inherit; }
button { user-select: none; }
input {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid #cbd1db;
  border-radius: 6px;
  background: #fff;
  color: var(--text);
}
input:focus, textarea:focus {
  outline: 2px solid rgba(45, 100, 216, 0.22);
  border-color: var(--accent);
}

.app-shell { min-height: 100vh; display: flex; flex-direction: column; }
.login-view {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: linear-gradient(135deg, #f3f4f6 0%, #eef4f1 48%, #f7f2ef 100%);
}
.login-panel {
  width: min(100%, 380px);
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
  display: grid;
  gap: 10px;
}
.login-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.login-brand strong { display: block; font-size: 18px; }
.login-brand span { display: block; margin-top: 2px; color: var(--muted); font-size: 13px; }
.login-panel label, .user-form label {
  color: #4f5968;
  font-size: 12px;
  font-weight: 700;
}
.login-error {
  padding: 8px 10px;
  border: 1px solid var(--error-border);
  border-radius: 6px;
  background: var(--error-bg);
  color: #7d2a2a;
  font-size: 13px;
}
.topbar {
  min-height: 64px;
  padding: 10px 16px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 260px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 9px;
  display: grid; place-items: center;
  background: #c92e35; color: white; font-weight: 800; font-size: 12px;
}
.brand strong { display: block; font-size: 15px; }
.brand span { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; }
.top-actions, .page-controls, .zoom-controls { display: flex; align-items: center; gap: 8px; }
.top-actions { flex-wrap: wrap; justify-content: flex-end; }
.user-badge {
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #f8f9fb;
  color: #46505e;
  font-size: 12px;
  font-weight: 700;
}

.btn {
  border: 1px solid #cbd1db;
  background: #fff;
  color: #252a32;
  padding: 8px 12px;
  border-radius: 7px;
  cursor: pointer;
  transition: .16s ease;
  white-space: nowrap;
}
.btn:hover:not(:disabled) { background: #f3f5f8; border-color: #aeb7c5; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover:not(:disabled) { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn.compact { padding: 6px 9px; font-size: 13px; }
.btn.large { width: 100%; min-height: 44px; font-weight: 700; }

.subbar {
  padding: 8px 16px;
  background: #fafbfc;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
#pageLabel, #zoomLabel { font-size: 13px; font-weight: 600; color: #46505e; }
#zoomSlider { width: 170px; }
.docx-banner {
  margin: 8px 12px 0;
  padding: 7px 10px;
  border: 1px solid var(--border);
  background: #f8f9fb;
  font-size: 13px;
  border-radius: 6px;
}

.workspace {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 440px;
  gap: 10px;
  padding: 10px 12px 12px;
}
.viewer-panel, .inspector {
  min-height: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 9px;
  box-shadow: var(--shadow);
}
.viewer-panel { position: relative; overflow: hidden; }
.page-scroller {
  width: 100%; height: calc(100vh - 160px);
  overflow: auto;
  background: #e9ebef;
  padding: 24px;
  text-align: center;
}
.page-stage { position: relative; display: inline-block; line-height: 0; box-shadow: 0 8px 28px rgba(0,0,0,.16); }
#pageImage { display: block; cursor: crosshair; background: white; }
.selection-box {
  position: absolute;
  border: 2px solid #e12828;
  pointer-events: none;
  z-index: 3;
}

.empty-state {
  height: calc(100vh - 160px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 30px;
}
.empty-icon { width: 78px; height: 96px; border-radius: 10px; background: #d33; color: white; display: grid; place-items: center; font-weight: 800; margin-bottom: 18px; }
.empty-state h2 { margin: 0 0 8px; }
.empty-state p { max-width: 520px; color: var(--muted); margin: 0 0 20px; line-height: 1.5; }

.inspector {
  height: calc(100vh - 160px);
  overflow-y: auto;
  padding: 12px;
}
.inspector-heading h2 { margin: 2px 0 7px; font-size: 20px; }
.inspector-heading p { margin: 0 0 12px; color: var(--muted); line-height: 1.42; font-size: 13px; }
.card { border: 1px solid var(--border); border-radius: 8px; padding: 11px; margin: 10px 0; background: #fff; }
.card h3 { margin: 0 0 10px; font-size: 14px; }
.field label, .replacement-card > label { display: block; font-size: 12px; font-weight: 700; margin-bottom: 5px; color: #4f5968; }
textarea {
  width: 100%; resize: vertical; min-height: 58px; max-height: 130px;
  padding: 8px 9px; border: 1px solid #cbd1db; border-radius: 6px; background: #fff;
  color: var(--text);
}
textarea:disabled { background: #f6f7f9; }
.info-grid { display: grid; grid-template-columns: 118px minmax(0,1fr); column-gap: 10px; row-gap: 8px; align-items: start; font-size: 12.5px; }
.info-grid label { font-weight: 700; color: #596473; }
.info-grid span { overflow-wrap: anywhere; }
.prewrap { white-space: pre-wrap; }
.stack-actions { display: grid; gap: 7px; margin: 9px 0; }
.notice { padding: 9px 10px; border: 1px solid; border-radius: 7px; font-size: 12.5px; line-height: 1.42; }
.notice strong, .notice span { display: block; }
.notice.success { background: var(--success-bg); border-color: var(--success-border); }
.notice.warning { background: var(--warning-bg); border-color: var(--warning-border); }
.notice.error { background: var(--error-bg); border-color: var(--error-border); }
.notice.neutral { background: var(--neutral-bg); border-color: var(--neutral-border); }
.small-note { margin: 10px 0; }
.pill { display: inline-block; padding: 3px 5px; border-radius: 4px; }
.pill.success { background: var(--success-bg); border: 1px solid var(--success-border); }
.pill.warning { background: var(--warning-bg); border: 1px solid var(--warning-border); }
.status { padding: 10px 2px 2px; color: #454f5c; font-size: 13px; line-height: 1.45; }
.export-extras { display: flex; gap: 8px; margin-top: 8px; }

.toast {
  position: fixed; right: 18px; bottom: 18px; max-width: 420px;
  padding: 11px 14px; border-radius: 8px; background: #222a35; color: white;
  box-shadow: 0 10px 30px rgba(0,0,0,.23); z-index: 50; font-size: 13px;
}
.modal {
  position: fixed;
  inset: 0;
  z-index: 55;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(21, 27, 36, 0.42);
}
.modal-panel {
  width: min(100%, 520px);
  max-height: min(90vh, 680px);
  overflow-y: auto;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(0,0,0,.24);
}
.modal-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.modal-heading h2 {
  margin: 0;
  font-size: 18px;
}
.user-form {
  display: grid;
  gap: 9px;
}
.user-list-rows {
  display: grid;
  gap: 7px;
}
.user-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #f8f9fb;
}
.user-row strong {
  display: block;
  overflow-wrap: anywhere;
  font-size: 13px;
}
.user-row span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}
.role-pill {
  padding: 4px 7px;
  border-radius: 999px;
  border: 1px solid #bdc6d4;
  background: #fff;
  color: #46505e;
  font-size: 12px;
  font-weight: 700;
  text-transform: capitalize;
}
.busy {
  position: fixed; inset: 0; background: rgba(255,255,255,.58); backdrop-filter: blur(1px);
  z-index: 60; display: flex; align-items: center; justify-content: center; gap: 10px;
  font-weight: 700;
}
.spinner { width: 25px; height: 25px; border: 3px solid #ccd3df; border-top-color: var(--accent); border-radius: 50%; animation: spin .75s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hidden { display: none !important; }

@media (max-width: 1050px) {
  .workspace { grid-template-columns: 1fr 390px; }
  .topbar { align-items: flex-start; }
  .brand { min-width: 220px; }
}
@media (max-width: 820px) {
  .topbar, .subbar { flex-direction: column; align-items: stretch; }
  .top-actions { justify-content: flex-start; }
  .workspace { display: block; }
  .viewer-panel { min-height: 60vh; }
  .page-scroller, .empty-state { height: 60vh; }
  .inspector { height: auto; max-height: none; margin-top: 10px; }
  .zoom-controls { justify-content: space-between; }
}