/* Flat scientific polish layer.
   The base look (connected three-pane layout, panels, tables) comes from
   layout.css + components.css; this file only refines tokens, provides the
   custom form controls (dropdown listbox), and the mobile drawer behaviour.
   No glassmorphism: solid surfaces, hairline borders, restrained shadows. */

:root {
  --page-bg: #f3f5f9;
  --panel-bg: #ffffff;
  --panel-soft: #f7f9fc;
  --panel-muted: #eef2f7;
  --text-strong: #131f31;
  --text: #33455c;
  --text-muted: #64748b;
  --text-faint: #68778a;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --primary: #0f6fd6;
  --primary-strong: #0b5cb4;
  --primary-soft: #e9f2fc;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
  --shadow-md: 0 10px 28px rgba(15, 23, 42, .12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --topbar-h: 58px;
  --statusbar-h: 28px;
  --sidebar-w: 264px;
  --inspector-w: 330px;
  --transition: 140ms ease;
}

[data-theme="dark"] {
  --page-bg: #0b1220;
  --panel-bg: #111a2b;
  --panel-soft: #16223a;
  --panel-muted: #1b2a44;
  --text-strong: #f2f6fb;
  --text: #d3dded;
  --text-muted: #9aabc2;
  --text-faint: #8394ab;
  --border: #23324b;
  --border-strong: #34486a;
  --primary: #5aa7f0;
  --primary-strong: #7cbaf6;
  --primary-soft: rgba(90, 167, 240, .14);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .25);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, .38);
}

body { overflow: hidden; background: var(--page-bg); }

/* ---------- Topbar / brand ---------- */
.brand-lockup { gap: 10px; }
.brand-copy { display: grid; gap: 1px; min-width: 0; }
.brand-name { font-size: 15px; }
.brand-caption { color: var(--text-faint); font-size: 9px; font-weight: 600; letter-spacing: .03em; white-space: nowrap; }
.brand-mark { width: 30px; height: 30px; padding: 5px; border-radius: 8px; box-shadow: none; }
.project-title-wrap { width: min(420px, 100%); }
.save-indicator { font-size: 10px; font-weight: 600; }
.workspace-mode-icon { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 7px; color: var(--primary); background: var(--primary-soft); }
.workspace-mode-icon + .subtle { color: var(--text-strong); font-weight: 600; }
.mobile-inspector-button, .mobile-panel-backdrop { display: none; }
.project-menu-button { display: none !important; flex: 0 0 auto; }

/* ---------- Flat card / hero refinements ---------- */
.welcome-hero { background: var(--panel-bg); }
.welcome-hero::after { display: none; }
.button-primary { box-shadow: none; }
.button-primary:hover { transform: none; }
[data-theme="dark"] .button-primary { color: #071525; }
.quick-card:hover { transform: none; box-shadow: var(--shadow-sm); }
.chart-card:hover { transform: none; box-shadow: var(--shadow-sm); }
.resource-card { border-color: var(--border); background: var(--panel-bg); }
.resource-card:hover { background: var(--panel-soft); }
.resource-card.is-selected { background: var(--primary-soft); border-color: color-mix(in srgb, var(--primary) 32%, var(--border)); box-shadow: inset 2px 0 0 var(--primary); }
.workspace-toolbar { background: var(--panel-bg); }
.sheet-tools { background: var(--panel-soft); }
.inspector-section { border: 1px solid var(--border); border-radius: 10px; padding: 4px 10px 12px; margin-bottom: 9px; background: var(--panel-bg); }
.inspector-section:last-child { border-bottom: 1px solid var(--border); }
.data-quality-strip { display: grid; grid-template-columns: minmax(210px, 1.7fr) repeat(4, minmax(72px, .65fr)); gap: 1px; overflow: hidden; border-block: 1px solid var(--border); color: var(--text-muted); background: var(--border); }
.quality-summary { display: flex; min-width: 0; align-items: center; gap: 9px; padding: 9px 13px; background: var(--panel-bg); }
.quality-summary > i { flex: 0 0 auto; color: var(--success); font-size: 17px; }
.quality-summary > span { min-width: 0; display: grid; gap: 2px; }
.quality-summary strong { overflow: hidden; color: var(--text-strong); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.quality-summary small { overflow: hidden; color: var(--text-faint); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.quality-summary.is-success { background: color-mix(in srgb, var(--success-soft) 46%, var(--panel-bg)); }
.quality-summary.is-warning { background: color-mix(in srgb, var(--warning-soft) 58%, var(--panel-bg)); }
.quality-summary.is-danger, .quality-summary.is-error { background: color-mix(in srgb, var(--danger-soft) 56%, var(--panel-bg)); }
.quality-summary.is-warning > i { color: var(--warning); }
.quality-summary.is-danger > i, .quality-summary.is-error > i { color: var(--danger); }
.quality-metric { display: flex; min-width: 0; flex-direction: column; align-items: flex-start; justify-content: center; gap: 2px; padding: 9px 10px; background: var(--panel-soft); font-size: 10px; line-height: 1.35; }
.quality-metric > i { flex: 0 0 auto; color: var(--primary); font-size: 13px; }
.quality-metric > div { min-width: 0; display: grid; gap: 1px; }
.quality-metric strong { color: var(--text-strong); font-size: 14px; font-variant-numeric: tabular-nums; }
.quality-metric span, .quality-metric small { min-width: 0; overflow: hidden; color: var(--text-faint); text-overflow: ellipsis; white-space: nowrap; }
.quality-metric.is-success > i { color: var(--success); }
.quality-metric.is-warning > i { color: var(--warning); }
.quality-metric.is-danger > i, .quality-metric.is-error > i { color: var(--danger); }
.quality-metric.has-warning { background: color-mix(in srgb, var(--warning-soft) 72%, var(--panel-soft)); }
.quality-metric.has-warning strong, .quality-metric.has-warning span { color: var(--warning); }
.analysis-method-note { display: flex; align-items: flex-start; gap: 9px; margin-top: 12px; padding: 10px 11px; border: 1px solid color-mix(in srgb, var(--primary) 22%, var(--border)); border-radius: 9px; color: var(--text-muted); background: color-mix(in srgb, var(--primary-soft) 62%, var(--panel-bg)); font-size: 11px; line-height: 1.55; }
.analysis-method-note > i { flex: 0 0 auto; margin-top: 1px; color: var(--primary); font-size: 14px; }
.analysis-method-note > span { min-width: 0; }
.project-action-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.project-action-card { display: grid; grid-template-columns: 38px minmax(0, 1fr); align-items: center; gap: 10px; min-height: 68px; padding: 11px 12px; border: 1px solid var(--border); border-radius: 10px; color: var(--text); background: var(--panel-soft); text-align: left; transition: border-color var(--transition), background var(--transition); }
.project-action-card:hover { border-color: color-mix(in srgb, var(--primary) 36%, var(--border)); background: color-mix(in srgb, var(--primary-soft) 68%, var(--panel-bg)); }
.project-action-card > i { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 9px; color: var(--primary); background: var(--primary-soft); font-size: 17px; }
.project-action-card > span { min-width: 0; display: grid; gap: 2px; }
.project-action-card strong { color: var(--text-strong); font-size: 12px; }
.project-action-card small { overflow: hidden; color: var(--text-faint); font-size: 10px; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }
.project-action-card:last-child { grid-column: 1 / -1; }
.related-resources-button { gap: 5px !important; }
.related-resource-count { display: inline-grid; min-width: 17px; height: 17px; place-items: center; padding-inline: 4px; border-radius: 9px; color: var(--primary); background: var(--primary-soft); font-size: 9px; font-weight: 800; }
.related-resources-button:disabled .related-resource-count { color: var(--text-faint); background: var(--panel-muted); }
.related-resource-browser { display: grid; gap: 14px; }
.related-dataset-summary { display: grid; grid-template-columns: 42px minmax(0, 1fr) auto; align-items: center; gap: 11px; width: 100%; padding: 13px; border: 1px solid color-mix(in srgb, var(--primary) 28%, var(--border)); border-radius: 12px; color: var(--text); background: linear-gradient(145deg, color-mix(in srgb, var(--primary-soft) 72%, var(--panel-bg)), var(--panel-bg)); text-align: left; }
.related-dataset-summary > span:nth-child(2), .related-resource-card > span:nth-child(2) { min-width: 0; display: grid; gap: 3px; }
.related-dataset-summary strong, .related-resource-card strong { overflow: hidden; color: var(--text-strong); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.related-dataset-summary small, .related-resource-card small { overflow: hidden; color: var(--text-faint); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.related-summary-counts { display: inline-flex !important; grid-auto-flow: column; align-items: center; gap: 4px !important; color: var(--text-muted); font-size: 10px; white-space: nowrap; }
.related-summary-counts b { color: var(--primary); font-size: 12px; }
.related-resource-icon { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 10px; font-size: 16px; }
.related-resource-icon.dataset { color: var(--primary); background: var(--primary-soft); }
.related-resource-icon.analysis { color: #7c3aed; background: color-mix(in srgb, #ede9fe 72%, var(--panel-bg)); }
.related-resource-icon.chart { color: var(--success); background: var(--success-soft); }
.related-resource-section { display: grid; gap: 7px; }
.related-resource-section-head { display: flex; align-items: center; justify-content: space-between; color: var(--text-muted); font-size: 11px; font-weight: 750; }
.related-resource-section-head b { display: inline-grid; min-width: 19px; height: 19px; place-items: center; border-radius: 10px; color: var(--text-faint); background: var(--panel-muted); font-size: 9px; }
.related-resource-list { display: grid; gap: 6px; }
.related-resource-card { display: grid; grid-template-columns: 38px minmax(0, 1fr) 16px; align-items: center; gap: 9px; width: 100%; padding: 9px 10px; border: 1px solid var(--border); border-radius: 10px; color: var(--text); background: var(--panel-soft); text-align: left; transition: var(--transition); }
.related-resource-card:hover, .related-dataset-summary:hover { border-color: color-mix(in srgb, var(--primary) 42%, var(--border)); background-color: color-mix(in srgb, var(--primary-soft) 56%, var(--panel-bg)); }
.related-resource-card > i { color: var(--text-faint); font-size: 11px; }
.related-resource-empty { padding: 12px; border: 1px dashed var(--border); border-radius: 9px; color: var(--text-faint); background: var(--panel-soft); font-size: 10px; text-align: center; }

/* ---------- Native select: flat arrow, no browser chrome ---------- */
select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 34px !important;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 20 20' fill='none'%3E%3Cpath d='m5 7.5 5 5 5-5' stroke='%2364748b' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: right 10px center !important;
  background-size: 15px 15px !important;
}
[data-theme="dark"] select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 20 20' fill='none'%3E%3Cpath d='m5 7.5 5 5 5-5' stroke='%23b8c8da' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") !important;
}
select::-ms-expand { display: none; }
select option, select optgroup { color: var(--text); background: var(--panel-bg); }
select:disabled { cursor: not-allowed; opacity: .55; }

/* ---------- App-drawn listbox (semantic select stays in the form) ---------- */
.custom-select { position: relative; width: 100%; min-width: 0; }
.custom-select-native {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  min-height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
  opacity: 0 !important;
  pointer-events: none !important;
}
.custom-select-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-height: 33px;
  padding: 6px 9px 6px 10px;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  background: var(--panel-bg);
  text-align: left;
  font-size: 12px;
  outline: none;
  transition: var(--transition);
}
.custom-select-trigger:hover { border-color: var(--border-strong); }
.custom-select-trigger:focus-visible,
.custom-select-trigger.is-active { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 14%, transparent); }
.custom-select-trigger:disabled { cursor: not-allowed; opacity: .55; }
.custom-select-value { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.custom-select-trigger > i { flex: 0 0 auto; color: var(--text-faint); font-size: 11px; transition: transform var(--transition); }
.custom-select-trigger.is-active > i { color: var(--primary); transform: rotate(180deg); }
.inspector .custom-select-trigger { min-height: 30px; padding: 5px 7px; font-size: 11px; }

.select-picker-portal {
  position: fixed;
  z-index: 175;
  overflow: auto;
  padding: 6px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  color: var(--text);
  background: var(--panel-bg);
  box-shadow: var(--shadow-md);
}
.select-picker-portal[hidden] { display: none; }
.select-picker-list { display: grid; gap: 2px; }
.select-picker-group { display: grid; gap: 2px; }
.select-picker-group + .select-picker-group { margin-top: 6px; padding-top: 6px; border-top: 1px solid var(--border); }
.select-picker-group-label { padding: 6px 9px 3px; color: var(--text-faint); font-size: 9px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.select-picker-option {
  display: grid;
  grid-template-columns: 17px minmax(0, 1fr);
  gap: 7px;
  align-items: center;
  width: 100%;
  min-height: 33px;
  padding: 7px 9px;
  border: 0;
  border-radius: 7px;
  color: var(--text);
  background: transparent;
  text-align: left;
  font-size: 12px;
  outline: none;
  transition: background var(--transition), color var(--transition);
}
.select-picker-option > i { color: transparent; font-size: 13px; }
.select-picker-option > span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.select-picker-option:hover,
.select-picker-option:focus-visible { color: var(--primary); background: var(--primary-soft); }
.select-picker-option.is-selected { color: var(--primary); background: var(--primary-soft); font-weight: 700; }
.select-picker-option.is-selected > i { color: var(--primary); }
.select-picker-option:disabled { cursor: not-allowed; opacity: .42; }

/* ---------- Checkbox / radio sizing inside field grids ---------- */
.field .checkbox-field input[type="checkbox"],
.field .checkbox-field input[type="radio"],
.inspector .field .checkbox-field input[type="checkbox"],
.inspector .field .checkbox-field input[type="radio"] {
  flex: 0 0 15px;
  width: 15px !important;
  height: 15px;
  min-height: 15px;
  padding: 0;
  border-radius: 4px;
  box-shadow: none;
}

/* ---------- Keyboard and modal ergonomics ---------- */
:where(button, a[href], input:not([type="hidden"]), select, textarea, [tabindex]:not([tabindex="-1"])):focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.field:focus-within > label { color: var(--primary); }
.sheet-table td:focus-within, .sheet-table thead th:focus-within { box-shadow: inset 0 0 0 2px var(--primary); }
.radio-card:focus-within, .dataset-format-card:focus-within, .dataset-option-card:focus-within { outline: 2px solid var(--primary); outline-offset: 2px; }
.modal-backdrop { padding-top: max(20px, env(safe-area-inset-top, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); padding-bottom: max(20px, env(safe-area-inset-bottom, 0px)); padding-left: max(20px, env(safe-area-inset-left, 0px)); }

/* ---------- Scrollbars ---------- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { border: 2px solid transparent; border-radius: 999px; background: rgba(100, 116, 139, .28); background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: rgba(100, 116, 139, .45); background-clip: padding-box; }

/* ---------- Compact desktop / tablet ---------- */
@media (max-width: 1180px) {
  :root { --sidebar-w: 228px; --inspector-w: 290px; }
  .data-quality-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .quality-summary { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .project-menu-button { display: inline-flex !important; min-width: 34px; min-height: 34px; align-items: center; justify-content: center; }
}

/* ---------- Tablet: inspector becomes an off-canvas drawer ---------- */
@media (max-width: 820px) {
  :root { --inspector-w: 0px; }
  .mobile-inspector-button { display: inline-flex; }
  .mobile-panel-backdrop {
    position: fixed;
    inset: 0;
    z-index: 44;
    display: block;
    border: 0;
    background: rgba(15, 23, 42, .45);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
  }
  .mobile-panel-backdrop.is-open { opacity: 1; pointer-events: auto; }
  .inspector {
    position: fixed;
    z-index: 46;
    top: env(safe-area-inset-top, 0px);
    right: env(safe-area-inset-right, 0px);
    bottom: env(safe-area-inset-bottom, 0px);
    display: flex;
    width: min(370px, calc(100vw - 40px)) !important;
    max-width: calc(100vw - 40px);
    border-left: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    opacity: 0;
    pointer-events: none;
    transform: translateX(102%);
    transition: transform var(--transition), opacity var(--transition);
  }
  .inspector.is-mobile-open:not(.is-context-hidden) {
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }
  .inspector.is-collapsed { width: min(370px, calc(100vw - 40px)) !important; }
  .inspector-head { flex: 0 0 auto; }
  .inspector-body { overscroll-behavior: contain; }
}

/* ---------- Phone ergonomics ---------- */
@media (max-width: 680px) {
  :root { --sidebar-w: 0px; --topbar-h: 56px; }
  .topbar { padding: env(safe-area-inset-top, 0px) 11px 0; }
  .topbar-actions .button { width: 36px; height: 36px; min-height: 36px; padding: 0; }
  .topbar-actions .button span { display: none; }
  .brand-copy { display: none; }
  .brand-mark { width: 24px; height: 24px; padding: 4px; }
  .icon-button, .project-menu-button { min-width: 36px; width: 36px; height: 36px; }
  .button:not(.button-small) { min-height: 38px; }
  .button-small { min-height: 36px; }
  .resource-action { width: 30px; height: 30px; }
  .resource-tab { min-height: 40px; }
  .text-button { min-height: 32px; padding-inline: 6px; }
  .field > input:not([type="checkbox"]):not([type="radio"]), .field > select, .field > textarea, .form-input, .custom-select-trigger { min-height: 40px; }
  .checkbox-field, .radio-inline, .sheet-context-menu button { min-height: 40px; }
  .sidebar {
    z-index: 48;
    top: calc(var(--topbar-h) + env(safe-area-inset-top, 0px));
    bottom: calc(var(--statusbar-h) + env(safe-area-inset-bottom, 0px));
    left: env(safe-area-inset-left, 0px);
  }
  .sidebar.is-open { width: min(285px, 86vw) !important; border-right: 1px solid var(--border); opacity: 1; pointer-events: auto; transform: none; }
  .data-quality-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .quality-summary { grid-column: 1 / -1; }
  .quality-metric { min-height: 48px; flex-direction: row; align-items: center; justify-content: space-between; }
  .workspace-toolbar {
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
  }
  .workspace-toolbar::-webkit-scrollbar,
  .chart-canvas-head .toolbar-group::-webkit-scrollbar,
  .sheet-tools::-webkit-scrollbar { display: none; }
  .workspace-toolbar > .toolbar-group { flex: 0 0 auto; flex-wrap: nowrap; }
  .workspace-toolbar .subtle { display: none; }
  .page-head .toolbar-group { width: 100%; }
  .page-head .toolbar-group .button { flex: 1 1 135px; min-height: 36px; }
  .sheet-tools { flex-wrap: nowrap; overflow-x: auto; overscroll-behavior-x: contain; }
  .sheet-tools .spacer,
  .table-hint { display: none; }
  .analysis-result-head { flex-direction: column; }
  .analysis-result-head .toolbar-group { width: 100%; }
  .analysis-result-head .button { flex: 1; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chart-canvas-card { min-height: 430px; }
  .chart-canvas { padding: 8px; }
  .chart-canvas > div,
  .chart-loading,
  .chart-error { min-height: 360px; }
  .modal-backdrop { align-items: end; padding-top: max(8px, env(safe-area-inset-top, 0px)); padding-right: max(8px, env(safe-area-inset-right, 0px)); padding-bottom: max(8px, env(safe-area-inset-bottom, 0px)); padding-left: max(8px, env(safe-area-inset-left, 0px)); }
  .modal { width: 100%; max-height: calc(100vh - 16px); max-height: calc(100dvh - 16px); }
  .modal-foot .button { flex: 1; min-height: 40px; }
  .toast-root { right: 9px; left: 9px; }
  .toast { width: 100%; }
  .status-center { display: none; }
  .status-context { max-width: none; flex: 1; }
}

@media (max-width: 460px) {
  .project-action-grid { grid-template-columns: 1fr; }
  .project-action-card:last-child { grid-column: auto; }
  .ncs-export-banner { grid-template-columns: 1fr; }
  .ncs-export-banner .ncs-quality-badge { grid-row: auto; }
  .ncs-export-banner small { grid-column: auto; }
  .save-indicator { display: none; }
  .project-title-wrap { max-width: 150px; }
  .quick-grid { grid-template-columns: 1fr; }
  .welcome-actions .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}