/* ERP design system — served by Core at /core/ui/erp.css (docs/DESIGN_SYSTEM.md, ADR-0007).
 * One visual language for Core and every module: DM Sans, ink + violet palette, soft lavender
 * surfaces, white 12 px cards on a near-white canvas, quiet borders. Class prefix: erp-.
 * Modules link this file; they never copy it. */

/* ---- Fonts (self-hosted DM Sans, variable; OFL licence in /core/ui/fonts/OFL.txt) ---- */
@font-face {
  font-family: "DM Sans";
  font-style: normal;
  font-weight: 100 1000;
  font-display: swap;
  src: url("/core/ui/fonts/DMSans[opsz,wght].ttf") format("truetype-variations"),
       url("/core/ui/fonts/DMSans[opsz,wght].ttf") format("truetype");
}
@font-face {
  font-family: "DM Sans";
  font-style: italic;
  font-weight: 100 1000;
  font-display: swap;
  src: url("/core/ui/fonts/DMSans-Italic[opsz,wght].ttf") format("truetype-variations"),
       url("/core/ui/fonts/DMSans-Italic[opsz,wght].ttf") format("truetype");
}

/* ---- Tokens ---- */
:root {
  --erp-ink: #1c1c2c;
  --erp-ink-2: #322a40;
  --erp-muted: #626273;
  --erp-purple: #6d54c8;
  --erp-purple-dark: #5741aa;
  --erp-lavender: #f0ecff;
  --erp-line: #e8e6ed;
  --erp-line-card: #e4e7ee;
  --erp-canvas: #f8f9fb;
  --erp-success: #287650;
  --erp-danger: #b4314a;
  --erp-warning: #8a5a00;
  --erp-radius: 12px;
  --erp-radius-sm: 8px;
  --erp-radius-lg: 18px;
  --erp-font: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --erp-focus: 0 0 0 3px rgba(109, 84, 200, 0.35);
  /* derived surfaces (not part of the public token table) */
  --erp-surface: #ffffff;
  --erp-success-bg: #e6f4ec;
  --erp-danger-bg: #fbe9ec;
  --erp-warning-bg: #fff3dc;
  --erp-shadow: 0 1px 2px rgba(28, 28, 44, 0.04), 0 8px 24px rgba(28, 28, 44, 0.06);
  --erp-appbar-h: 56px;
}

/* ---- Base reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--erp-font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--erp-ink);
  background: var(--erp-canvas);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3, h4 { color: var(--erp-ink-2); font-weight: 500; }
a { color: var(--erp-purple); text-decoration: none; }
a:hover { color: var(--erp-purple-dark); text-decoration: underline; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
img, svg { display: block; max-width: 100%; }
table { border-collapse: collapse; border-spacing: 0; }
[hidden] { display: none !important; }
:focus-visible { outline: none; box-shadow: var(--erp-focus); border-radius: var(--erp-radius-sm); }

/* ---- Type scale ---- */
.erp-display, h1 { font-size: 28px; font-weight: 500; letter-spacing: -0.9px; line-height: 1.2; }
.erp-title, h2 { font-size: 21px; font-weight: 500; letter-spacing: -0.65px; line-height: 1.25; }
h3 { font-size: 16px; letter-spacing: -0.2px; }
.erp-small { font-size: 13px; }
.erp-eyebrow {
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.9px;
  text-transform: uppercase;
  color: var(--erp-purple);
}
.erp-muted { color: var(--erp-muted); }
.erp-num { font-variant-numeric: tabular-nums; }
.erp-mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 13px;
}

/* ---- Layout ---- */
.erp-shell { min-height: 100vh; display: flex; flex-direction: column; }
.erp-body {
  display: flex;
  flex: 1;
  align-items: stretch;
  min-height: 0;
}
.erp-body.erp-no-sidebar > .erp-main { max-width: 1200px; }
/* Narrow, centred column for focused flows (sign-in, first-sign-in setup). */
.erp-body.erp-no-sidebar > .erp-main.erp-main-narrow { max-width: 440px; margin: 0 auto; width: 100%; padding-top: 10vh; }
.erp-main-narrow .erp-page-head { flex-direction: column; align-items: flex-start; }
.erp-sidebar {
  flex: 0 0 232px;
  padding: 20px 12px;
  border-right: 1px solid var(--erp-line);
  background: var(--erp-surface);
}
.erp-nav { display: flex; flex-direction: column; gap: 2px; }
.erp-nav a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--erp-radius-sm);
  color: var(--erp-ink);
  text-decoration: none;
}
.erp-nav a:hover { background: var(--erp-canvas); color: var(--erp-ink); }
.erp-nav a[aria-current="page"] {
  background: var(--erp-lavender);
  color: var(--erp-purple-dark);
  font-weight: 500;
}
.erp-nav .erp-eyebrow { padding: 14px 12px 6px; }
.erp-main {
  flex: 1;
  min-width: 0;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 28px 32px 48px;
}
.erp-page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.erp-page-head p { color: var(--erp-muted); margin-top: 6px; max-width: 64ch; }
.erp-page-head .erp-eyebrow { margin-bottom: 6px; }

/* ---- Buttons ---- */
.erp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid var(--erp-line);
  border-radius: var(--erp-radius-sm);
  background: var(--erp-surface);
  color: var(--erp-ink);
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 120ms, border-color 120ms, color 120ms;
}
.erp-btn:hover { background: var(--erp-canvas); color: var(--erp-ink); text-decoration: none; }
.erp-btn:disabled, .erp-btn[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; }
.erp-btn-primary { background: var(--erp-ink); border-color: var(--erp-ink); color: #fff; }
.erp-btn-primary:hover { background: var(--erp-ink-2); border-color: var(--erp-ink-2); color: #fff; }
.erp-btn-accent { background: var(--erp-purple); border-color: var(--erp-purple); color: #fff; }
.erp-btn-accent:hover { background: var(--erp-purple-dark); border-color: var(--erp-purple-dark); color: #fff; }
.erp-btn-danger { background: var(--erp-danger); border-color: var(--erp-danger); color: #fff; }
.erp-btn-danger:hover { background: #962639; border-color: #962639; color: #fff; }
.erp-btn-ghost { background: transparent; border-color: transparent; color: var(--erp-purple); }
.erp-btn-ghost:hover { background: var(--erp-lavender); color: var(--erp-purple-dark); }
.erp-btn-sm { min-height: 30px; padding: 0 10px; font-size: 13px; }
.erp-btn-block { display: flex; width: 100%; }

/* ---- Forms ---- */
.erp-form { display: flex; flex-direction: column; gap: 16px; }
.erp-field { display: flex; flex-direction: column; gap: 6px; }
.erp-label { font-weight: 500; font-size: 13px; color: var(--erp-ink-2); }
.erp-hint { font-size: 13px; color: var(--erp-muted); }
.erp-input, .erp-select, .erp-textarea {
  width: 100%;
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid var(--erp-line);
  border-radius: var(--erp-radius-sm);
  background: var(--erp-surface);
  color: var(--erp-ink);
}
.erp-textarea { min-height: 96px; resize: vertical; }
.erp-select {
  appearance: none;
  padding-right: 34px;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23626273' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}
.erp-input::placeholder, .erp-textarea::placeholder { color: var(--erp-muted); opacity: 1; }
.erp-input:hover, .erp-select:hover, .erp-textarea:hover { border-color: #cfcbdd; }
.erp-input:focus-visible, .erp-select:focus-visible, .erp-textarea:focus-visible {
  border-color: var(--erp-purple);
  box-shadow: var(--erp-focus);
}
.erp-input:disabled, .erp-select:disabled, .erp-textarea:disabled { background: var(--erp-canvas); color: var(--erp-muted); }
.erp-input[aria-invalid="true"], .erp-select[aria-invalid="true"], .erp-textarea[aria-invalid="true"] {
  border-color: var(--erp-danger);
}
.erp-input[aria-invalid="true"]:focus-visible, .erp-select[aria-invalid="true"]:focus-visible,
.erp-textarea[aria-invalid="true"]:focus-visible { box-shadow: 0 0 0 3px rgba(180, 49, 74, 0.25); }
.erp-field [aria-invalid="true"] ~ .erp-hint, .erp-field .erp-error { color: var(--erp-danger); }
.erp-check {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}
.erp-check input { width: 16px; height: 16px; margin: 0; accent-color: var(--erp-purple); }

/* ---- Cards ---- */
.erp-card {
  background: var(--erp-surface);
  border: 1px solid var(--erp-line-card);
  border-radius: var(--erp-radius);
}
.erp-card + .erp-card { margin-top: 16px; }
.erp-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 14px 20px;
  border-bottom: 1px solid var(--erp-line);
}
.erp-card-head h2, .erp-card-head h3 { font-size: 16px; letter-spacing: -0.2px; }
.erp-card-pad { padding: 20px; }
.erp-kpi { padding: 18px 20px; }
.erp-kpi-label { font-size: 13px; color: var(--erp-muted); }
.erp-kpi-value {
  margin-top: 4px;
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.9px;
  line-height: 1.2;
  color: var(--erp-ink-2);
  font-variant-numeric: tabular-nums;
}

/* ---- Tables ---- */
.erp-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.erp-card > .erp-table-wrap { border-radius: var(--erp-radius); }
.erp-table { width: 100%; font-size: 14px; }
.erp-table th, .erp-table td {
  padding: 10px 16px;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--erp-line);
}
.erp-table thead th {
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.9px;
  text-transform: uppercase;
  color: var(--erp-muted);
  background: var(--erp-canvas);
  white-space: nowrap;
}
.erp-table tbody tr:last-child td { border-bottom: 0; }
.erp-table tbody tr:hover td { background: #fbfbfd; }
.erp-table a { color: var(--erp-ink); font-weight: 500; }
.erp-table a:hover { color: var(--erp-purple-dark); }
.erp-right { text-align: right !important; font-variant-numeric: tabular-nums; }
.erp-table-sticky th:first-child, .erp-table-sticky td:first-child {
  position: sticky;
  left: 0;
  background: var(--erp-surface);
  z-index: 1;
}
.erp-table-sticky thead th:first-child { background: var(--erp-canvas); }

/* ---- Status ---- */
.erp-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--erp-canvas);
  border: 1px solid var(--erp-line);
  color: var(--erp-muted);
  font-size: 12px;
  font-weight: 500;
  line-height: 18px;
  white-space: nowrap;
}
.erp-badge-success { background: var(--erp-success-bg); border-color: transparent; color: var(--erp-success); }
.erp-badge-danger { background: var(--erp-danger-bg); border-color: transparent; color: var(--erp-danger); }
.erp-badge-warning { background: var(--erp-warning-bg); border-color: transparent; color: var(--erp-warning); }
.erp-badge-accent { background: var(--erp-lavender); border-color: transparent; color: var(--erp-purple-dark); }
.erp-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  vertical-align: middle;
}

/* ---- Feedback ---- */
.erp-alert {
  padding: 12px 16px;
  border: 1px solid var(--erp-line);
  border-radius: var(--erp-radius-sm);
  background: var(--erp-surface);
  color: var(--erp-ink);
}
.erp-alert-danger { background: var(--erp-danger-bg); border-color: #f1c4cc; color: var(--erp-danger); }
.erp-alert-success { background: var(--erp-success-bg); border-color: #bfe3cf; color: var(--erp-success); }
.erp-alert-info { background: var(--erp-lavender); border-color: #d9d0fb; color: var(--erp-purple-dark); }
.erp-alert-warning { background: var(--erp-warning-bg); border-color: #f3dfae; color: var(--erp-warning); }
.erp-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--erp-muted);
}
.erp-empty h2, .erp-empty h3 { color: var(--erp-ink-2); margin-bottom: 6px; }
.erp-secret {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border: 1px dashed var(--erp-purple);
  border-radius: var(--erp-radius-sm);
  background: var(--erp-lavender);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 15px;
  letter-spacing: 0.3px;
  color: var(--erp-ink);
  word-break: break-all;
  user-select: all;
}

/* ---- Overlays ---- */
dialog.erp-dialog {
  width: min(520px, calc(100vw - 32px));
  padding: 0;
  border: 1px solid var(--erp-line-card);
  border-radius: var(--erp-radius-lg);
  background: var(--erp-surface);
  color: var(--erp-ink);
  box-shadow: 0 24px 64px rgba(28, 28, 44, 0.18);
}
dialog.erp-dialog::backdrop { background: rgba(28, 28, 44, 0.45); }
dialog.erp-dialog > form { display: contents; }
.erp-dialog-body { padding: 24px; }
.erp-dialog-body h2 { margin-bottom: 8px; }
.erp-dialog-body > p { color: var(--erp-muted); margin-bottom: 16px; }
.erp-dialog-foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 14px 24px;
  border-top: 1px solid var(--erp-line);
  background: var(--erp-canvas);
  border-radius: 0 0 var(--erp-radius-lg) var(--erp-radius-lg);
}
.erp-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 50;
  min-width: 220px;
  padding: 6px;
  border: 1px solid var(--erp-line-card);
  border-radius: var(--erp-radius);
  background: var(--erp-surface);
  box-shadow: var(--erp-shadow);
}
.erp-menu-left { right: auto; left: 0; }
.erp-menu a, .erp-menu button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: var(--erp-radius-sm);
  background: transparent;
  color: var(--erp-ink);
  text-align: left;
  text-decoration: none;
}
.erp-menu a:hover, .erp-menu button:hover, .erp-menu a:focus-visible, .erp-menu button:focus-visible {
  background: var(--erp-canvas);
  color: var(--erp-ink);
  text-decoration: none;
}
.erp-menu a[aria-current="page"] { background: var(--erp-lavender); color: var(--erp-purple-dark); font-weight: 500; }
.erp-menu hr { margin: 6px 4px; border: 0; border-top: 1px solid var(--erp-line); }
.erp-menu .erp-eyebrow { padding: 8px 10px 4px; }
.erp-menu .erp-muted { padding: 6px 10px; font-size: 13px; }

/* ---- Launcher ---- */
.erp-tile {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  background: var(--erp-surface);
  border: 1px solid var(--erp-line-card);
  border-radius: var(--erp-radius);
  color: var(--erp-ink);
  text-decoration: none;
  transition: border-color 120ms, box-shadow 120ms;
}
.erp-tile:hover { border-color: var(--erp-purple); box-shadow: var(--erp-shadow); color: var(--erp-ink); text-decoration: none; }
.erp-tile h3 { font-size: 15px; letter-spacing: -0.2px; }
.erp-tile p { font-size: 13px; color: var(--erp-muted); margin-top: 2px; }
.erp-tile-icon {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--erp-radius);
  background: var(--erp-lavender);
  color: var(--erp-purple-dark);
  font-size: 18px;
  font-weight: 650;
}

/* ---- Helpers ---- */
.erp-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.erp-grid-4 { display: grid; gap: 16px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.erp-stack { display: flex; flex-direction: column; gap: 16px; }
.erp-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.erp-sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* ---- App bar (<erp-app-bar>, rendered in light DOM by erp-shell.js) ---- */
erp-app-bar { display: block; }
.erp-appbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--erp-appbar-h);
  padding: 0 20px;
  background: var(--erp-surface);
  border-bottom: 1px solid var(--erp-line);
}
.erp-appbar-brand {
  font-weight: 650;
  font-size: 17px;
  letter-spacing: -0.4px;
  color: var(--erp-ink-2);
  text-decoration: none;
}
.erp-appbar-brand:hover { color: var(--erp-purple-dark); text-decoration: none; }
.erp-appbar-sep { color: var(--erp-line); font-size: 18px; user-select: none; }
.erp-appbar-app, .erp-appbar-user { position: relative; display: flex; align-items: center; }
.erp-appbar-switch, .erp-appbar-userbtn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: var(--erp-radius-sm);
  background: transparent;
  color: var(--erp-ink);
  font-weight: 500;
}
.erp-appbar-switch:hover, .erp-appbar-userbtn:hover,
.erp-appbar-switch[aria-expanded="true"], .erp-appbar-userbtn[aria-expanded="true"] { background: var(--erp-canvas); }
.erp-appbar-caret { font-size: 10px; color: var(--erp-muted); }
.erp-appbar-section { color: var(--erp-muted); }
.erp-appbar-section::before { content: "/"; margin-right: 12px; color: var(--erp-line); }
.erp-appbar-spacer { flex: 1; }
.erp-appbar-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--erp-lavender);
  color: var(--erp-purple-dark);
  font-size: 12px;
  font-weight: 650;
}
.erp-appbar-name { max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.erp-appbar-menu-user { padding: 8px 10px 10px; border-bottom: 1px solid var(--erp-line); margin-bottom: 6px; }
.erp-appbar-menu-user strong { display: block; font-weight: 500; }
.erp-appbar-menu-user span { display: block; font-size: 13px; color: var(--erp-muted); word-break: break-all; }
.erp-appbar-app-icon {
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: var(--erp-lavender);
  color: var(--erp-purple-dark);
  font-size: 11px;
  font-weight: 650;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .erp-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .erp-main { padding: 24px 20px 40px; }
}
@media (max-width: 859px) {
  .erp-body { flex-direction: column; }
  .erp-sidebar {
    flex: none;
    padding: 6px 12px;
    border-right: 0;
    border-bottom: 1px solid var(--erp-line);
    overflow-x: auto;
  }
  .erp-nav { flex-direction: row; align-items: center; gap: 4px; white-space: nowrap; }
  .erp-nav a { padding: 8px 10px; }
  .erp-nav .erp-eyebrow { display: none; }
  .erp-page-head h1 { font-size: 24px; letter-spacing: -0.7px; }
  .erp-appbar-section { display: none; }
}
@media (max-width: 480px) {
  .erp-main { padding: 16px 12px 32px; }
  .erp-grid-4 { grid-template-columns: minmax(0, 1fr); }
  .erp-appbar { padding: 0 12px; gap: 8px; }
  .erp-appbar-name { display: none; }
  .erp-card-head, .erp-card-pad { padding: 14px 16px; }
  .erp-dialog-body { padding: 20px 16px; }
  .erp-dialog-foot { padding: 12px 16px; flex-wrap: wrap; }
  .erp-table th, .erp-table td { padding: 8px 12px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}