:root {
  --gvv-header: #2C2C2C;
  --gvv-dark: #3D3D3D;
  --gvv-black: #1A1A1A;
  --gvv-text: #2C2C2C;
  --gvv-secondary: #5A5A5A;
  --gvv-muted: #888888;
  --gvv-bg: #F5F5F5;
  --gvv-white: #FFFFFF;
  --gvv-border: #CCCCCC;
  --gvv-line: #AAAAAA;
  --gvv-accent: #2F4A6E;
  --ok: #2E7D32;
  --warn: #E6920A;
  --danger: #C0392B;
  font-family: 'Segoe UI', Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--gvv-bg);
  color: var(--gvv-text);
  font-size: 14px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
h2 { color: var(--gvv-dark); font-size: 16px; margin: 0 0 12px; }
.muted { color: var(--gvv-muted); }
.small { font-size: 12px; }
[hidden] { display: none !important; }

/* Header */
.app-header {
  background: var(--gvv-header);
  color: #fff;
  height: 56px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.brand { display: flex; align-items: center; gap: 16px; }
.brand img { height: 36px; }
.app-name { font-weight: 600; font-size: 15px; padding-left: 16px; border-left: 1px solid #5A5A5A; }
.header-right { display: flex; gap: 8px; }
.hdr-chip {
  background: transparent; color: #fff; border: 1px solid #5A5A5A; border-radius: 4px;
  padding: 5px 10px; font: inherit; font-size: 12px; cursor: pointer; display: flex; align-items: center; gap: 6px;
}
.hdr-chip:hover { border-color: #888; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gvv-muted); }
.dot.ok { background: #5FBF63; }
.dot.warn { background: var(--warn); }

/* Toolbar */
.toolbar {
  background: var(--gvv-white);
  border-bottom: 1px solid var(--gvv-border);
  padding: 8px 16px;
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
  flex-shrink: 0;
}
.sep { width: 1px; height: 22px; background: var(--gvv-border); margin: 0 6px; }
.spacer { flex: 1; }
.btn {
  background: var(--gvv-white); color: var(--gvv-text);
  border: 1px solid var(--gvv-border); border-radius: 4px;
  padding: 6px 12px; font: inherit; font-size: 13px; cursor: pointer; white-space: nowrap;
}
.btn:hover:not(:disabled) { border-color: var(--gvv-secondary); }
.btn:disabled { opacity: .45; cursor: default; }
.btn-primary { background: var(--gvv-dark); color: #fff; border-color: var(--gvv-dark); }
.btn-primary:hover:not(:disabled) { background: var(--gvv-black); }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-sm { padding: 3px 9px; font-size: 13px; }
.badge {
  display: inline-block; min-width: 18px; padding: 0 5px; border-radius: 9px;
  background: var(--gvv-dark); color: #fff; font-size: 11px; text-align: center; margin-left: 4px;
}
.mode-tag {
  font-size: 12px; padding: 3px 8px; border-radius: 4px;
  background: var(--gvv-bg); border: 1px solid var(--gvv-border); color: var(--gvv-secondary);
}
.mode-tag.edit { border-color: var(--gvv-accent); color: var(--gvv-accent); }
.dirty-tag { font-size: 12px; color: var(--warn); font-weight: 600; }

/* Workspace */
.workspace {
  flex: 1; min-height: 0;
  display: grid; grid-template-columns: var(--left-w, minmax(380px, 42%)) 12px minmax(0, 1fr); padding: 12px;
}
/* Draggable divider between the panes (width set in --left-w by app.js) */
.splitter { cursor: col-resize; position: relative; touch-action: none; outline: none; }
.splitter::after {
  content: ''; position: absolute; top: 0; bottom: 0; left: 5px; width: 2px; border-radius: 1px;
  background: transparent; transition: background .15s;
}
.splitter:hover::after, .splitter:focus-visible::after, .splitter.dragging::after { background: var(--gvv-accent); }
body.resizing { cursor: col-resize; user-select: none; }
body.resizing iframe, body.resizing canvas { pointer-events: none; }
.panel {
  background: var(--gvv-white); border: 1px solid var(--gvv-border); border-radius: 6px;
  display: flex; flex-direction: column; min-height: 0; overflow: hidden; position: relative;
}

/* Entry panel */
.project-strip {
  padding: 12px 16px; border-bottom: 1px solid var(--gvv-border); background: #FAFAFA;
  display: grid; grid-template-columns: minmax(0, 360px); gap: 10px;
}
/* Tabs: Samples (Slib) / Hoop details */
.tabs { display: flex; gap: 2px; padding: 8px 16px 0; border-bottom: 1px solid var(--gvv-border); background: #FAFAFA; }
.tab {
  font: inherit; font-size: 13px; padding: 7px 14px; cursor: pointer; color: var(--gvv-secondary);
  background: transparent; border: 1px solid transparent; border-bottom: none; border-radius: 4px 4px 0 0; margin-bottom: -1px;
}
.tab:hover { color: var(--gvv-text); }
.tab.active { background: var(--gvv-white); border-color: var(--gvv-border); color: var(--gvv-black); font-weight: 600; }
.tab .badge { background: var(--gvv-muted); }
.tab.active .badge { background: var(--gvv-dark); }
.pane { flex: 1; min-height: 0; display: flex; flex-direction: column; position: relative; }

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Hoop details */
.hoop-scroll { flex: 1; overflow-y: auto; padding: 4px 16px 20px; }
.hoop-block { margin-top: 14px; }
.hoop-editor { background: #FAFAFA; border: 1px solid var(--gvv-border); border-radius: 6px; padding: 10px 12px 12px; }
.hoop-editor.editing { border-color: var(--gvv-accent); }
.hoop-editor .group-title { border-bottom: none; margin-bottom: 6px; }
.hoop-editor-actions { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
#hoopRowForm.grid { grid-template-columns: repeat(12, 1fr); }
#hoopRowForm .f.hf-full { grid-column: span 12; }
#hoopRowForm .f.hf-h { grid-column: span 6; }
#hoopRowForm .f.hf-t { grid-column: span 4; }
#hoopRowForm .f.hf-q { grid-column: span 3; }
#hoopRowForm .f label { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.f.check-f { justify-content: flex-end; }
.f.check-f label.chk { display: flex; align-items: center; gap: 6px; color: var(--gvv-text); font-size: 13px; padding: 7px 0; cursor: pointer; }
.unit-in { display: flex; align-items: center; gap: 6px; }
.unit-in input { flex: 1; min-width: 0; }
.unit-in span { font-size: 13px; color: var(--gvv-secondary); }
.hoop-table-wrap { overflow-x: auto; border: 1px solid var(--gvv-border); border-radius: 4px; }
.hoop-table { border-collapse: collapse; font-size: 12px; min-width: 100%; }
.hoop-table th { background: var(--gvv-dark); color: #fff; font-weight: 600; padding: 5px 6px; text-align: left; white-space: nowrap; border-right: 1px solid #555; }
.hoop-table thead tr:first-child th[colspan] { text-align: center; }
.hoop-table td { padding: 5px 6px; border-top: 1px solid #E0E0E0; white-space: nowrap; max-width: 180px; overflow: hidden; text-overflow: ellipsis; }
.hoop-table td.num, .hoop-table td.chk { text-align: center; }
.hoop-table tbody tr { cursor: pointer; }
.hoop-table tbody tr:nth-child(even) { background: var(--gvv-bg); }
.hoop-table tbody tr:hover { background: #ECECEC; }
.hoop-table tbody tr.editing { background: #E6ECF3; }
.hoop-table td.act { text-align: right; }
.hoop-table .row-del { border: none; background: none; color: var(--gvv-muted); cursor: pointer; font-size: 14px; padding: 0 4px; }
.hoop-table .row-del:hover { color: var(--danger); }
.hoop-table .row-copy { border: none; background: none; color: var(--gvv-muted); cursor: pointer; font-size: 14px; padding: 0 4px; }
.hoop-table .row-copy:hover { color: var(--gvv-accent); }
.hoop-editor.copying { border-color: var(--gvv-accent); border-style: dashed; }
.hoop-table .empty-row td { text-align: center; color: var(--gvv-muted); padding: 14px; cursor: default; }

.section-nav {
  display: flex; align-items: center; gap: 10px; padding: 10px 16px 6px;
}
.section-title { flex: 1; text-align: center; }
.section-title { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.sample-name { display: flex; align-items: center; gap: 6px; }
.sample-name strong { font-size: 15px; color: var(--gvv-black); }
.sample-name input {
  font: inherit; font-size: 15px; font-weight: 600; width: 110px; padding: 3px 6px; margin-left: -4px;
  border: 1px solid var(--gvv-border); border-radius: 4px; color: var(--gvv-black);
}
.sample-name input:focus { outline: 2px solid var(--gvv-accent); outline-offset: -1px; }
.sample-name input.invalid { border-color: var(--danger); }
.sample-name input:disabled { background: transparent; border-color: transparent; }
#sectionOf { font-size: 12px; }
.chip.unnamed { font-style: italic; }
.chip.deleted { text-decoration: line-through; opacity: .5; background: var(--gvv-white); }
.chip.deleted.active { background: var(--gvv-secondary); border-color: var(--gvv-secondary); opacity: .8; }
.section-sub { display: flex; align-items: center; gap: 10px; }
.link-btn { background: none; border: none; padding: 0; font: inherit; font-size: 12px; cursor: pointer; color: var(--danger); text-decoration: underline; }
.link-btn.restore { color: var(--gvv-accent); }
.deleted-notice { margin: 24px 0; padding: 16px; border: 1px dashed var(--gvv-line); border-radius: 6px; text-align: center; color: var(--gvv-secondary); }
.deleted-notice p { margin: 0 0 12px; }
.section-chips {
  display: flex; gap: 4px; flex-wrap: wrap; padding: 0 16px 10px; border-bottom: 1px solid var(--gvv-border);
  max-height: 72px; overflow-y: auto;
}
.chip {
  font: inherit; font-size: 11px; min-width: 34px; padding: 2px 6px; border-radius: 3px; cursor: pointer;
  border: 1px solid var(--gvv-border); background: var(--gvv-white); color: var(--gvv-secondary);
}
.chip.filled { background: #E8E8E8; color: var(--gvv-text); }
.chip.active { background: var(--gvv-dark); color: #fff; border-color: var(--gvv-dark); }
.section-form { flex: 1; overflow-y: auto; padding: 4px 16px 20px; }
.group { margin-top: 14px; }
.group-title {
  font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
  color: var(--gvv-dark); border-bottom: 1px solid var(--gvv-border); padding-bottom: 4px; margin-bottom: 8px;
}
.grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px 10px; }
.f { grid-column: span 6; display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.f.half { grid-column: span 3; }
.f.third { grid-column: span 2; }
.f label { font-size: 12px; color: var(--gvv-secondary); }
.f label .req { color: var(--danger); }
.f input[type=text], .f input[type=number], .f input[type=date], .f input[type=time], .f select, .f textarea {
  font: inherit; font-size: 13px; color: var(--gvv-text);
  border: 1px solid var(--gvv-border); border-radius: 4px; padding: 6px 8px; background: #fff; width: 100%;
}
.f textarea { resize: vertical; }
.f input:focus, .f select:focus, .f textarea:focus { outline: 2px solid var(--gvv-accent); outline-offset: -1px; border-color: var(--gvv-accent); }
.f input[readonly] { background: #EEEEEE; color: var(--gvv-secondary); }
.f .help { font-size: 11px; color: var(--gvv-muted); }
.f .lock { font-size: 11px; color: var(--gvv-muted); margin-left: 4px; }
.measure { display: flex; align-items: center; gap: 6px; }
.measure input[type=number] { flex: 1; min-width: 0; }
.measure select { width: auto !important; flex: 0 0 auto; }
.measure .pm { font-size: 14px; color: var(--gvv-secondary); }
.measure .unit { font-size: 13px; color: var(--gvv-secondary); min-width: 24px; }
.modal .opt { display: flex; gap: 8px; align-items: center; margin-top: 4px; cursor: pointer; }
.radios { display: flex; gap: 14px; padding: 6px 0; }
.radios label { color: var(--gvv-text); font-size: 13px; display: flex; gap: 5px; align-items: center; }
.f.invalid input { border-color: var(--danger); }

.empty-hint {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 24px; background: var(--gvv-white);
}
.entry-panel .empty-hint { top: 0; }
.empty-hint p { margin: 4px 0; }

/* Viewer */
.viewer-toolbar {
  display: flex; align-items: center; gap: 6px; padding: 8px 12px; border-bottom: 1px solid var(--gvv-border);
  flex-wrap: wrap;
}
.pg input { width: 54px; font: inherit; font-size: 13px; padding: 2px 4px; border: 1px solid var(--gvv-border); border-radius: 4px; text-align: center; }
.zoom-label { min-width: 44px; text-align: center; font-size: 12px; color: var(--gvv-secondary); }
.pdf-name { font-size: 12px; max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.viewer-scroll {
  flex: 1; overflow: auto; background: #E4E4E4; padding: 16px; position: relative; cursor: grab;
}
.viewer-scroll.panning { cursor: grabbing; user-select: none; }
#pdfCanvas { display: block; margin: 0 auto; background: #fff; box-shadow: 0 1px 4px rgba(0,0,0,.25); }

/* Drawer */
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: 400px; max-width: 100%;
  background: var(--gvv-white); border-left: 1px solid var(--gvv-border); box-shadow: -4px 0 16px rgba(0,0,0,.12);
  padding: 16px; z-index: 30; display: flex; flex-direction: column;
}
.drawer-head { display: flex; justify-content: space-between; align-items: center; }
.drawer-head h2 { margin: 0; }
.draft-list { list-style: none; margin: 8px 0 0; padding: 0; overflow-y: auto; }
.draft-list li {
  border: 1px solid var(--gvv-border); border-radius: 4px; padding: 10px 12px; margin-bottom: 6px;
  cursor: pointer; user-select: none; display: flex; gap: 8px; align-items: flex-start;
}
.draft-list li:hover { border-color: var(--gvv-secondary); background: #FAFAFA; }
.draft-list .d-main { flex: 1; min-width: 0; }
.draft-list .d-title { font-weight: 600; color: var(--gvv-black); }
.draft-list .d-meta { font-size: 12px; color: var(--gvv-muted); }
.draft-list .d-del { border: none; background: none; color: var(--gvv-muted); cursor: pointer; font-size: 16px; }
.draft-list .d-del:hover { color: var(--danger); }
.tag-edit { font-size: 10px; color: var(--gvv-accent); border: 1px solid var(--gvv-accent); border-radius: 3px; padding: 0 4px; margin-left: 6px; font-weight: 400; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(26,26,26,.45); z-index: 80;
  display: flex; align-items: center; justify-content: center; padding: 16px;
}
.modal {
  background: var(--gvv-white); border-radius: 6px; padding: 20px; width: 520px; max-width: 100%;
  max-height: 85vh; overflow-y: auto; box-shadow: 0 8px 30px rgba(0,0,0,.25);
}
.modal p { margin: 0 0 10px; line-height: 1.45; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.modal input[type=text] { font: inherit; width: 100%; padding: 6px 8px; border: 1px solid var(--gvv-border); border-radius: 4px; }
.notice { border-left: 3px solid var(--warn); background: #FFF8EC; padding: 8px 12px; margin-bottom: 10px; }
.notice.info { border-left-color: var(--gvv-accent); background: #F1F4F8; }
table.audit { width: 100%; border-collapse: collapse; font-size: 12px; }
table.audit th { background: var(--gvv-dark); color: #fff; text-align: left; padding: 6px 8px; font-weight: 600; }
table.audit td { padding: 5px 8px; border-bottom: 1px solid #E0E0E0; vertical-align: top; }
table.audit tbody tr:nth-child(even) { background: var(--gvv-bg); }

/* Review workflow: NAS (waiting for review) -> reviewer -> server */
.mode-bar {
  display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 8px; padding: 7px 16px; font-size: 12px;
  border-bottom: 1px solid var(--gvv-border); border-left: 3px solid var(--gvv-accent); background: #F1F4F8; color: var(--gvv-text);
}
.mode-bar.status-returned { border-left-color: var(--danger); background: #FBE9E7; }
.mode-bar.status-approved { border-left-color: var(--ok); background: #E8F3E9; }
.modal textarea { font: inherit; width: 100%; padding: 6px 8px; border: 1px solid var(--gvv-border); border-radius: 4px; resize: vertical; margin-top: 4px; }
.modal select { font: inherit; padding: 3px 6px; border: 1px solid var(--gvv-border); border-radius: 4px; margin-left: 4px; }
.review-pick { display: flex; align-items: center; gap: 16px; margin-bottom: 8px; }
.review-pick .opt-inline { display: flex; align-items: center; gap: 6px; cursor: pointer; }
.review-list { max-height: 320px; overflow-y: auto; border: 1px solid var(--gvv-border); border-radius: 4px; }
.review-list > p { margin: 0; padding: 14px; }
.review-table tbody tr { cursor: pointer; }
.review-table tbody tr:hover { background: #ECECEC; }
.review-table tbody tr.sel { background: #E6ECF3; outline: 2px solid var(--gvv-accent); outline-offset: -2px; }
.status-tag { display: inline-block; font-size: 11px; padding: 0 6px; border-radius: 3px; border: 1px solid var(--gvv-accent); color: var(--gvv-accent); white-space: nowrap; }
.status-tag.st-returned { border-color: var(--danger); color: var(--danger); }
.status-tag.st-approved { border-color: var(--ok); color: var(--ok); }
.status-tag.st-invalid { border-color: var(--gvv-muted); color: var(--gvv-muted); }
.change-list { margin: 4px 0 10px; padding-left: 18px; font-size: 12px; max-height: 180px; overflow-y: auto; }
.server-list { list-style: none; padding: 0; margin: 8px 0 0; max-height: 300px; overflow-y: auto; border: 1px solid var(--gvv-border); border-radius: 4px; }
.server-list li { padding: 7px 10px; border-bottom: 1px solid #EEE; cursor: pointer; display: flex; justify-content: space-between; }
.server-list li:hover { background: var(--gvv-bg); }
.server-list li:last-child { border-bottom: none; }

/* Loading */
.busy {
  position: fixed; inset: 0; z-index: 70; background: rgba(245,245,245,.55); cursor: progress;
  display: flex; align-items: center; justify-content: center;
}
.busy-box {
  background: var(--gvv-white); border: 1px solid var(--gvv-border); border-radius: 6px; padding: 14px 20px;
  display: flex; align-items: center; gap: 12px; box-shadow: 0 4px 18px rgba(0,0,0,.15); font-size: 14px;
}
.spinner {
  width: 18px; height: 18px; border-radius: 50%; flex-shrink: 0;
  border: 3px solid #DDDDDD; border-top-color: var(--gvv-dark); animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.viewer-loading {
  position: absolute; top: 58px; left: 50%; transform: translateX(-50%); z-index: 5;
  background: var(--gvv-white); border: 1px solid var(--gvv-border); border-radius: 4px; padding: 6px 12px;
  display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--gvv-secondary);
}
.viewer-loading .spinner { width: 14px; height: 14px; border-width: 2px; }

/* Toasts */
.toasts { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); z-index: 60; display: flex; flex-direction: column; gap: 6px; align-items: center; }
.toast {
  background: var(--gvv-header); color: #fff; padding: 9px 16px; border-radius: 4px; font-size: 13px;
  box-shadow: 0 2px 10px rgba(0,0,0,.25); border-left: 4px solid var(--gvv-muted); max-width: 90vw;
}
.toast.ok { border-left-color: #5FBF63; }
.toast.warn { border-left-color: var(--warn); }
.toast.error { border-left-color: var(--danger); }

@media (max-width: 900px) {
  body { overflow: auto; }
  .workspace { grid-template-columns: 1fr; gap: 12px; }
  .splitter { display: none; }
  .panel { min-height: 70vh; }
  .project-strip { grid-template-columns: 1fr; }
  .app-name { display: none; }
}