:root {
  --bg: #eef3f9;
  --surface: #ffffff;
  --ink: #17212f;
  --muted: #4a5568;
  --primary: #0f62d6;
  --primary-2: #0b4fb0;
  --border: #cfd9e6;
  --shadow: 0 10px 30px rgba(18, 37, 63, 0.08);
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", Tahoma, sans-serif; background: var(--bg); color: var(--ink); }
header { padding: 22px 24px; background: linear-gradient(110deg, #0e3f6d, #0f62d6 55%, #2e7be8); color: #fff; box-shadow: var(--shadow); }
header h1 { margin: 0 0 6px; font-size: 26px; letter-spacing: 0.3px; }
header p { margin: 0; opacity: 0.95; }
main { padding: 22px; max-width: 1200px; margin: 0 auto; }
.tabs { display: flex; gap: 8px; margin-bottom: 12px; }
.tab-btn { border: 1px solid var(--border); background: #fff; color: var(--ink); border-radius: 10px; padding: 10px 14px; cursor: pointer; }
.tab-btn.active { background: linear-gradient(180deg, var(--primary), var(--primary-2)); color: #fff; border-color: transparent; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 12px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; margin-bottom: 14px; box-shadow: var(--shadow); }
.final-actions { justify-content: flex-end; }
.chapter-nav { justify-content: space-between; }
input, select, textarea, button { font: inherit; }
input, select, textarea { width: 100%; border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; background: #fcfdff; }
textarea { min-height: 80px; resize: vertical; }
button { border: none; border-radius: 8px; padding: 10px 14px; background: linear-gradient(180deg, var(--primary), var(--primary-2)); color: #fff; cursor: pointer; }
.status { margin-bottom: 12px; color: var(--muted); font-size: 14px; }
.category { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 16px; margin-bottom: 14px; box-shadow: var(--shadow); }
.category h2 { margin: 0 0 10px; font-size: 22px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
.field label { display: block; font-weight: 700; margin-bottom: 6px; }
.field-checkbox { display: flex; align-items: center; gap: 8px; }
.field-checkbox label { margin: 0; }
.field-checkbox input[type="checkbox"] { width: auto; transform: scale(1.2); }
.req { color: #b00020; margin-left: 4px; }
.photos { margin-top: 12px; border-top: 1px dashed var(--border); padding-top: 12px; }
.photos h3 { margin: 0 0 8px; font-size: 16px; }
.photo-preview { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.photo-card { width: 120px; }
.photo-card img { width: 120px; height: 85px; object-fit: cover; border-radius: 6px; border: 1px solid var(--border); display: block; }
.btn-remove-photo { margin-top: 6px; width: 100%; padding: 6px 8px; font-size: 12px; background: #b00020; }
.gps-btn { margin-top: 8px; width: auto; padding: 8px 12px; }
.hidden { display: none !important; }
.custom-value { margin-top: 8px; padding: 8px; border: 1px dashed var(--border); border-radius: 8px; background: #f7fbff; }
.breakers-box { margin-top: 14px; border: 1px solid var(--border); border-radius: 12px; padding: 12px; background: #fbfdff; }
.breakers-box h3 { margin: 0 0 6px; font-size: 17px; }
.helper { margin: 0 0 10px; color: var(--muted); font-size: 13px; }
.table-wrap { overflow-x: auto; }
.breakers-table { width: 100%; border-collapse: collapse; min-width: 920px; }
.breakers-table th, .breakers-table td { border: 1px solid var(--border); padding: 8px; vertical-align: top; }
.breakers-table th { background: #edf4ff; text-align: left; }
.reports-list { display: grid; gap: 10px; }
.report-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px; background: #fff; border: 1px solid var(--border); border-radius: 12px; }
.report-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn-link { display: inline-flex; align-items: center; padding: 9px 12px; border-radius: 8px; text-decoration: none; background: #0f62d6; color: #fff; }
.admin-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 14px; box-shadow: var(--shadow); }
.admin-toggle { display: flex; gap: 8px; align-items: flex-start; margin: 10px 0 4px; font-weight: 600; }
.admin-toggle input { width: auto; margin-top: 2px; }
.schema-cat { border: 1px solid var(--border); border-radius: 12px; padding: 12px; margin-bottom: 12px; background: #fcfdff; }
.schema-cat-top { display: flex; justify-content: space-between; gap: 10px; align-items: center; padding-bottom: 8px; border-bottom: 1px solid #e4ebf4; margin-bottom: 10px; }
.schema-cat-title-wrap { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.schema-cat-title-wrap small { color: var(--muted); }
.schema-cat-top-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.schema-chip { display: inline-flex; align-items: center; padding: 3px 8px; background: #e8f1ff; color: #0f3d91; border-radius: 999px; font-size: 12px; font-weight: 700; }
.schema-cat-body { display: grid; gap: 10px; }
.schema-cat.schema-cat-collapsed .schema-cat-body { display: none; }
.schema-cat-head { display: grid; grid-template-columns: 1fr 140px; gap: 8px; align-items: end; }
.schema-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.schema-section { margin-top: 6px; border-top: 1px dashed var(--border); padding-top: 10px; }
.schema-section h3 { margin: 0 0 10px; font-size: 17px; }
.schema-field-card { border: 1px solid #e5eaf2; border-radius: 10px; padding: 10px; background: #fff; margin-bottom: 8px; }
.schema-row { display: grid; grid-template-columns: 1.3fr 0.9fr 130px 90px; gap: 8px; align-items: end; margin-bottom: 8px; }
.schema-row-field { grid-template-columns: 42px 1.3fr 0.9fr 130px 90px; }
.schema-row-showif { grid-template-columns: 1fr 150px 1fr auto auto; }
.btn-danger { background: #b00020; }
.drag-handle { cursor: grab; background: #e8eef8; color: #1f3b6e; padding: 8px 0; font-weight: 800; }
.drag-handle-cat { min-width: 36px; }
.drag-handle:active { cursor: grabbing; }
.schema-field-card.is-dragging, .schema-cat.is-dragging { opacity: 0.55; }
.schema-field-card.drop-before, .schema-cat.drop-before { border-top: 3px solid #0f62d6; }
.schema-field-card.drop-after, .schema-cat.drop-after { border-bottom: 3px solid #0f62d6; }

.viewer-photos { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; }
.viewer-photo-btn { border: 1px solid var(--border); border-radius: 10px; padding: 8px; background: #fff; color: var(--ink); text-align: left; }
.viewer-photo-btn img { width: 100%; height: 130px; object-fit: cover; border-radius: 8px; display: block; margin-bottom: 6px; }
.viewer-photo-btn span { font-size: 12px; color: var(--muted); }
.viewer-value { background: #f8fafc; border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; min-height: 38px; white-space: pre-wrap; }
.viewer-photo-block h3 { margin: 14px 0 8px; font-size: 16px; }
.viewer-schema-flow { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.viewer-schema-node { min-width: 150px; border: 1px solid var(--border); border-radius: 10px; padding: 8px 10px; background: #f8fbff; display: grid; }
.viewer-schema-node small { color: var(--muted); }
.viewer-schema-arrow { color: #0f62d6; font-weight: 800; }
.viewer-diagram-canvas { position: relative; overflow: auto; border: 1px solid var(--border); border-radius: 12px; background: #f7fbff; padding: 0; }
.viewer-diagram-fit { width: 100%; max-width: 100%; overflow: auto; border: 1px solid var(--border); border-radius: 12px; background: #f7fbff; cursor: zoom-in; -webkit-overflow-scrolling: touch; }
.viewer-diagram-image { display: block; max-width: none; object-fit: contain; }
.viewer-diagram-node { position: absolute; width: 190px; min-height: 92px; border-radius: 12px; border: 2px solid #88b6f0; background: #eef4ff; color: #1a2c4a; padding: 10px 12px; z-index: 2; display: grid; align-content: start; gap: 2px; }
.viewer-diagram-node strong { color: #1f3f8e; font-size: 13px; line-height: 1.1; }
.viewer-diagram-node small { color: #2b3b55; font-size: 12px; line-height: 1.2; }
.viewer-diagram-svg { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; }
.diagram-lightbox-viewport { width: min(96vw, 1600px); height: calc(100vh - 130px); overflow: auto; background: #fff; border-radius: 10px; border: 1px solid #7da3e2; padding: 8px; }
.report-viewer-page #viewerContent { display: grid; gap: 12px; }
.report-viewer-page #viewerContent,
.report-viewer-page #viewerContent .category { min-width: 0; }
.report-viewer-page .viewer-photo-btn img { height: 150px; }
.report-viewer-page .viewer-diagram-canvas { max-width: 100%; overflow: auto; -webkit-overflow-scrolling: touch; }
.lightbox { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.85); z-index: 9999; display: flex; flex-direction: column; justify-content: center; align-items: center; padding: 20px; }
.lightbox img { max-width: min(1100px, 95vw); max-height: 82vh; border-radius: 10px; }
.lightbox-close { align-self: flex-end; margin-bottom: 10px; background: #b00020; }
.lightbox p { color: #fff; margin-top: 10px; text-align: center; }
.modal { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.45); z-index: 10000; display: flex; align-items: center; justify-content: center; padding: 18px; }
.modal-card { width: min(520px, 100%); background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 16px; box-shadow: var(--shadow); }
.modal-card h2 { margin: 0 0 12px; }
.modal-actions { margin-top: 12px; display: flex; gap: 8px; justify-content: flex-end; }
.btn-secondary { background: #64748b; }
.login-screen { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { width: min(460px, 100%); background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 18px; box-shadow: var(--shadow); }
.login-card h2 { margin: 0 0 8px; }
.login-card p { margin: 0 0 12px; color: var(--muted); }
.header-user-row { margin-top: 10px; display: flex; gap: 8px; align-items: center; }
.admin-subtabs { margin-top: 2px; }
.admin-subtab-btn { border: 1px solid var(--border); background: #fff; color: var(--ink); border-radius: 10px; padding: 8px 12px; cursor: pointer; }
.admin-subtab-btn.active { background: #0f62d6; color: #fff; border-color: transparent; }
.admin-subtab-panel { display: none; }
.admin-subtab-panel.active { display: grid; gap: 12px; }
.user-form { display: grid; gap: 8px; margin: 10px 0 12px; }

@media (max-width: 700px) {
  .toolbar, .report-row { flex-direction: column; align-items: stretch; }
  .tabs { flex-wrap: wrap; }
  .tab-btn { width: 100%; text-align: center; }
  .admin-card { padding: 12px; border-radius: 10px; }
  .admin-card h2 { margin-top: 0; font-size: 22px; }
  .admin-toggle { font-size: 15px; }
  #schemaEditor { display: grid; gap: 10px; }
  .schema-cat { padding: 10px; border-radius: 10px; }
  .schema-cat-top { align-items: flex-start; }
  .schema-cat-title-wrap { width: 100%; }
  .schema-cat-top-actions { width: 100%; display: grid; grid-template-columns: 1fr 1fr; }
  .schema-cat-top-actions button { width: 100%; }
  .schema-chip { font-size: 11px; }
  .schema-cat-head { grid-template-columns: 1fr; }
  .schema-actions { display: grid; grid-template-columns: 1fr; gap: 6px; }
  .schema-actions label { width: 100%; }
  .schema-row { grid-template-columns: 1fr; }
  .schema-row-field { grid-template-columns: 1fr; }
  .schema-row-showif { grid-template-columns: 1fr; }
  .schema-row .drag-handle { width: 44px; height: 36px; padding: 0; }
  .schema-field-card { padding: 8px; }
  .schema-section h3 { font-size: 16px; }
  .schema-section button,
  .schema-cat button,
  #btnSchemaAddCategory,
  #btnSchemaSave {
    min-height: 42px;
  }
  #btnSchemaAddCategory,
  #btnSchemaSave {
    width: 100%;
  }
  .report-viewer-page header { padding: 14px 14px; }
  .report-viewer-page header h1 { font-size: 32px; margin-bottom: 4px; }
  .report-viewer-page header p { font-size: 13px; }
  .report-viewer-page main { width: auto; max-width: 100%; padding: 10px; }
  .report-viewer-page .toolbar { padding: 10px; }
  .report-viewer-page .btn-link { width: 100%; justify-content: center; }
  .report-viewer-page #viewerContent .category { padding: 12px; border-radius: 12px; }
  .report-viewer-page #viewerContent .category h2 { font-size: 26px; margin-bottom: 8px; }
  .report-viewer-page #viewerContent .grid { grid-template-columns: 1fr; gap: 10px; }
  .report-viewer-page .viewer-photos { grid-template-columns: 1fr; gap: 8px; }
  .report-viewer-page .viewer-photo-btn img { height: 180px; }
  .report-viewer-page .viewer-diagram-fit { overflow: hidden; }
  .report-viewer-page .viewer-diagram-node { width: 170px; min-height: 86px; padding: 8px 10px; }
  .report-viewer-page .viewer-diagram-node strong { font-size: 12px; }
  .report-viewer-page .viewer-diagram-node small { font-size: 11px; }
  .breakers-table { min-width: 100%; border: 0; }
  .breakers-table thead { display: none; }
  .breakers-table tbody, .breakers-table tr, .breakers-table td { display: block; width: 100%; }
  .breakers-table tr { background: #fff; border: 1px solid var(--border); border-radius: 10px; margin-bottom: 10px; padding: 8px; }
  .breakers-table td { border: 0; padding: 6px 0; }
  .breakers-table td::before { content: attr(data-label); display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; font-weight: 700; }
}