/* ==========================================================================
   MFS SHARED UI KIT  ·  v1
   --------------------------------------------------------------------------
   One visual language for forms, inputs and buttons in every module
   (MM1, MM2, MM4 and the React workspace).

   How it works
   ------------
   Every module already defines the same design tokens (--line, --surface,
   --ink, --muted, --steel, --paper, ...) including its own dark-mode values.
   This file only *normalises* the control shapes and interaction states and
   reads the module's tokens, so it looks native everywhere and follows each
   module's dark mode automatically.

   Rules of engagement
   -------------------
   * Core geometry and states are !important so they win over the ~19
     hand-written stylesheets without editing every module.
   * Layout properties (width, margin, position) are deliberately NOT
     overridden, so existing grids and toolbars keep their structure.
   * Load this file LAST (after the module's own <style> blocks).
   * Escape hatch: add class="mfs-raw" to any control that must keep its
     original look.
   * Per-context sizing: set --mfs-control-h on a container (see LOGIN below).

   Contents
   -------
   1. Tokens            5. Buttons
   2. Base controls     6. Field / label / help / error
   3. Focus & states    7. Form layout utilities
   4. Select chevron    8. Responsive, touch, motion, print
   ========================================================================== */

/* ---------------------------------------------------------------- 1.TOKENS */
:root {
  /* geometry */
  --mfs-control-h: 40px;
  --mfs-control-h-sm: 32px;
  --mfs-radius: 8px;
  --mfs-radius-sm: 7px;
  --mfs-fs: 14px;
  --mfs-fs-sm: 12.5px;
  --mfs-gap: 10px;
  --mfs-textarea-min: 92px;

  /* colour — resolved from the host module, with safe fallbacks */
  --mfs-border: var(--line, #d8dee4);
  --mfs-surface: var(--surface, #ffffff);
  --mfs-ink: var(--ink, #17212c);
  --mfs-muted: var(--muted, #5e6b78);
  --mfs-faint: var(--faint, #8a96a3);
  --mfs-paper: var(--paper, #f2f4f6);
  --mfs-accent: var(--steel, #23507a);
  --mfs-accent-hi: var(--steel-d, #1a3d5e);
  --mfs-accent-ink: var(--on-steel, #ffffff);
  --mfs-accent-soft: var(--steel-l, #e6eef5);
  --mfs-danger: var(--red, #b42318);
  --mfs-danger-soft: var(--red-l, #fdecea);

  /* interaction chrome */
  --mfs-hover: #f4f7fa;
  --mfs-ring: 0 0 0 3px rgba(35, 80, 122, 0.20);
  --mfs-ring-danger: 0 0 0 3px rgba(180, 35, 24, 0.16);
  --mfs-shadow: 0 1px 2px rgba(15, 30, 45, 0.06);
  --mfs-shadow-hi: 0 2px 6px rgba(15, 30, 45, 0.10);

  /* opt-out switch used by :not(.mfs-raw) below */
  color-scheme: light dark;
}

/* dark surfaces need a lighter ring and deeper shadow */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --mfs-hover: #1e2e3d;
    --mfs-ring: 0 0 0 3px rgba(111, 163, 214, 0.28);
    --mfs-ring-danger: 0 0 0 3px rgba(240, 122, 108, 0.26);
    --mfs-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
    --mfs-shadow-hi: 0 2px 8px rgba(0, 0, 0, 0.45);
  }
}
:root[data-theme="dark"] {
  --mfs-hover: #1e2e3d;
  --mfs-ring: 0 0 0 3px rgba(111, 163, 214, 0.28);
  --mfs-ring-danger: 0 0 0 3px rgba(240, 122, 108, 0.26);
  --mfs-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
  --mfs-shadow-hi: 0 2px 8px rgba(0, 0, 0, 0.45);
}
:root[data-theme="light"] {
  --mfs-hover: #f4f7fa;
  --mfs-ring: 0 0 0 3px rgba(35, 80, 122, 0.20);
  --mfs-shadow: 0 1px 2px rgba(15, 30, 45, 0.06);
}

/* Sign-in screens read better with taller, calmer controls. Setting the
   variable on the container re-sizes every child control at once.
   `:is()` (not `:where()`) is required so it outranks the `:root` defaults. */
:is(#login, .login-form, .mm2-login-shell, .mm2-login-card, .mm2-login-form, .as-login, .pss-login) {
  --mfs-control-h: 46px;
  --mfs-fs: 15px;
}

/* -------------------------------------------------------- 2.BASE CONTROLS */
/* Text-like inputs, selects and the legacy `.i` class all share one shape. */
:where(
  input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="file"]):not([type="color"]):not([type="submit"]):not([type="button"]):not([type="reset"]):not([type="image"]),
  select,
  textarea,
  .i
):not(.mfs-raw) {
  box-sizing: border-box !important;
  width: 100%;
  max-width: 100%;
  height: var(--mfs-control-h) !important;
  min-height: var(--mfs-control-h) !important;
  padding: 0 11px !important;
  border: 1px solid var(--mfs-border) !important;
  border-radius: var(--mfs-radius) !important;
  background-color: var(--mfs-surface) !important;
  color: var(--mfs-ink) !important;
  font-family: inherit !important;
  font-size: var(--mfs-fs) !important;
  font-weight: 400 !important;
  line-height: 1.35 !important;
  letter-spacing: 0;
  box-shadow: none !important;
  transition: border-color .16s ease, box-shadow .16s ease, background-color .16s ease;
}

/* Multi-line fields grow instead of being clipped by a fixed height. */
:where(textarea, textarea.i):not(.mfs-raw) {
  height: auto !important;
  min-height: var(--mfs-textarea-min) !important;
  padding: 9px 11px !important;
  line-height: 1.5 !important;
  resize: vertical;
  overflow: auto;
}

/* Checkboxes / radios: keep native behaviour, align with the accent colour. */
:where(input[type="checkbox"], input[type="radio"]):not(.mfs-raw) {
  accent-color: var(--mfs-accent);
  cursor: pointer;
}

/* ------------------------------------------------------ 3.FOCUS & STATES */
:where(input, select, textarea, .i):not(.mfs-raw):focus,
:where(input, select, textarea, .i):not(.mfs-raw):focus-visible {
  outline: none !important;
  border-color: var(--mfs-accent) !important;
  background-color: var(--mfs-surface) !important;
  box-shadow: var(--mfs-ring) !important;
}

:where(input, select, textarea, .i):not(.mfs-raw):disabled {
  background-color: var(--mfs-paper) !important;
  color: var(--mfs-muted) !important;
  border-color: var(--mfs-border) !important;
  cursor: not-allowed !important;
  opacity: .85;
  box-shadow: none !important;
}

:where(input, textarea, .i):not(.mfs-raw)[readonly] {
  background-color: var(--mfs-paper) !important;
  color: var(--mfs-ink) !important;
}

/* Invalid state — set aria-invalid="true" or class="is-invalid" */
:where(input, select, textarea, .i):not(.mfs-raw)[aria-invalid="true"],
:where(input, select, textarea, .i):not(.mfs-raw).is-invalid {
  border-color: var(--mfs-danger) !important;
  box-shadow: var(--mfs-ring-danger) !important;
}

:where(input, textarea):not(.mfs-raw)::placeholder {
  color: var(--mfs-faint) !important;
  opacity: 1;
}

/* ----------------------------------------------------- 4.SELECT CHEVRON */
/* One consistent arrow everywhere, instead of each OS deciding. */
:where(select):not([multiple]):not([size]):not(.mfs-raw) {
  -webkit-appearance: none !important;
  appearance: none !important;
  padding-right: 34px !important;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236B7B8A' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: right 11px center !important;
  background-size: 14px 14px !important;
  cursor: pointer;
}
:where(select)[multiple], :where(select)[size] {
  height: auto !important;
  padding: 6px 8px !important;
}
:where(select):not(.mfs-raw):disabled {
  cursor: not-allowed !important;
}

/* ------------------------------------------------------------ 5.BUTTONS */
/* Covers the legacy `.btn` family and the React classes used by the native
   MM2/MM4 screens (.mm2-button, .as-file-button, .primary-button). */
:where(.btn, .mm2-button, .as-file-button, .primary-button, button.mfs-btn, input[type="submit"], input[type="button"]):not(.mfs-raw) {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 7px;
  box-sizing: border-box !important;
  min-height: var(--mfs-control-h) !important;
  height: var(--mfs-control-h) !important;
  padding: 0 14px !important;
  border: 1px solid var(--mfs-border) !important;
  border-radius: var(--mfs-radius) !important;
  background-color: var(--mfs-surface) !important;
  color: var(--mfs-ink) !important;
  font-family: inherit !important;
  font-size: var(--mfs-fs-sm) !important;
  font-weight: 600 !important;
  line-height: 1.2 !important;
  letter-spacing: .01em;
  text-decoration: none !important;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: var(--mfs-shadow);
  transition: background-color .16s ease, border-color .16s ease, color .16s ease, box-shadow .16s ease, transform .06s ease;
}

:where(.btn, .mm2-button, .as-file-button, .primary-button, button.mfs-btn, input[type="submit"]):not(.mfs-raw):hover:not(:disabled) {
  border-color: var(--mfs-accent) !important;
  background-color: var(--mfs-hover) !important;
  box-shadow: var(--mfs-shadow-hi);
}

:where(.btn, .mm2-button, .as-file-button, .primary-button, button.mfs-btn, input[type="submit"]):not(.mfs-raw):active:not(:disabled) {
  transform: translateY(1px);
  box-shadow: none;
}

:where(.btn, .mm2-button, .as-file-button, .primary-button, button.mfs-btn, input[type="submit"]):not(.mfs-raw):focus-visible {
  outline: none !important;
  border-color: var(--mfs-accent) !important;
  box-shadow: var(--mfs-ring) !important;
}

:where(.btn, .mm2-button, .as-file-button, .primary-button, button.mfs-btn, input[type="submit"]):not(.mfs-raw):disabled,
:where(.btn, .mm2-button):not(.mfs-raw)[aria-disabled="true"] {
  background-color: var(--mfs-paper) !important;
  border-color: var(--mfs-border) !important;
  color: var(--mfs-muted) !important;
  box-shadow: none !important;
  cursor: not-allowed !important;
  opacity: .7;
  transform: none;
}

/* --- primary ------------------------------------------------------------ */
:where(.btn.pri, .btn.primary, .primary-button, .mm2-button.primary, button.mfs-btn--primary):not(.mfs-raw) {
  background-color: var(--mfs-accent) !important;
  border-color: var(--mfs-accent) !important;
  color: var(--mfs-accent-ink) !important;
  box-shadow: var(--mfs-shadow-hi);
}
:where(.btn.pri, .btn.primary, .primary-button, .mm2-button.primary, button.mfs-btn--primary):not(.mfs-raw):hover:not(:disabled) {
  background-color: var(--mfs-accent-hi) !important;
  border-color: var(--mfs-accent-hi) !important;
  color: var(--mfs-accent-ink) !important;
}
:where(.btn.pri, .btn.primary, .primary-button, .mm2-button.primary):not(.mfs-raw):focus-visible {
  box-shadow: var(--mfs-ring) !important;
}
:where(.btn.pri, .btn.primary, .primary-button, .mm2-button.primary):not(.mfs-raw):disabled {
  background-color: var(--mfs-accent) !important;
  border-color: var(--mfs-accent) !important;
  color: var(--mfs-accent-ink) !important;
}

/* --- destructive -------------------------------------------------------- */
:where(.btn.danger, .btn.destructive, .mm2-button.danger, .mm2-button.destructive, button.mfs-btn--danger):not(.mfs-raw) {
  background-color: var(--mfs-surface) !important;
  border-color: var(--mfs-danger) !important;
  color: var(--mfs-danger) !important;
}
:where(.btn.danger, .btn.destructive, .mm2-button.danger, .mm2-button.destructive):not(.mfs-raw):hover:not(:disabled) {
  background-color: var(--mfs-danger-soft) !important;
  border-color: var(--mfs-danger) !important;
  color: var(--mfs-danger) !important;
}

/* --- small / compact ---------------------------------------------------- */
:where(.btn.sm, .btn.small, .mm2-button.sm, .mm2-button.small, button.mfs-btn--sm):not(.mfs-raw) {
  min-height: var(--mfs-control-h-sm) !important;
  height: var(--mfs-control-h-sm) !important;
  padding: 0 10px !important;
  font-size: 12px !important;
  gap: 5px;
}

/* --- icon-only ---------------------------------------------------------- */
:where(.btn.icon, .btn.icon-only, .mfs-icon-btn) {
  padding-inline: 0 !important;
  width: var(--mfs-control-h) !important;
}

/* --- segmented group ---------------------------------------------------- */
.mfs-btn-group {
  display: inline-flex;
  gap: 0;
  border-radius: var(--mfs-radius);
  overflow: hidden;
}
.mfs-btn-group > .btn {
  border-radius: 0 !important;
  margin-left: -1px;
}
.mfs-btn-group > .btn:first-child { border-radius: var(--mfs-radius) 0 0 var(--mfs-radius) !important; margin-left: 0; }
.mfs-btn-group > .btn:last-child  { border-radius: 0 var(--mfs-radius) var(--mfs-radius) 0 !important; }

/* ------------------------------------------- 6.FIELD / LABEL / HELP / ERR */
/* `.f` is the label wrapper used by every legacy module. */
:where(.f, .mfs-field) {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--mfs-muted);
}
:where(.f, .mfs-field) > :where(input, select, textarea, .i) {
  font-weight: 400;
}
:where(.f, .mfs-field):focus-within {
  color: var(--mfs-accent);
}

/* Required marker: <label class="f mfs-required">.
   The label's caption is a bare text node in every module, so the marker is
   pinned to the field's top-right corner instead of becoming a flex row. */
:where(.f, .mfs-field).mfs-required {
  position: relative;
}
.mfs-required::after {
  content: "*";
  position: absolute;
  top: -1px;
  right: 0;
  color: var(--mfs-danger);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  pointer-events: none;
}

/* Helper + error copy under a control */
:where(.hint, .mfs-hint) {
  font-size: 12px;
  font-weight: 400;
  color: var(--mfs-muted);
  line-height: 1.45;
}
:where(.err, .mfs-error) {
  font-size: 12px;
  font-weight: 500;
  color: var(--mfs-danger);
  line-height: 1.45;
}
.mfs-hint { margin: 0; }
.mfs-error { margin: 0; }

/* ----------------------------------------------- 7.FORM LAYOUT UTILITIES */
/* Auto-fit grid: 2 columns on desktop, 1 on narrow screens. */
.mfs-form {
  display: grid;
  gap: 14px 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: start;
}
.mfs-form > .mfs-span-2 { grid-column: 1 / -1; }
.mfs-form > .mfs-field-full { grid-column: 1 / -1; }

/* Action row: right-aligned on wide screens, full-width buttons on phones. */
.mfs-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--mfs-gap);
  align-items: center;
  justify-content: flex-end;
}
.mfs-actions .mfs-spacer { margin-left: auto; }

/* Inline search / filter bar */
.mfs-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--mfs-gap);
  align-items: flex-end;
}

/* ------------------------------------- 8.RESPONSIVE / TOUCH / MOTION */
/* Touch devices get 44px hit targets (WCAG 2.5.5 friendly). */
@media (pointer: coarse) {
  :root { --mfs-control-h: 44px; --mfs-control-h-sm: 38px; }
  :where(.btn):not(.mfs-raw) { min-height: 44px !important; }
  :where(.btn.sm):not(.mfs-raw) { min-height: 38px !important; }
}

@media (max-width: 560px) {
  .mfs-form { grid-template-columns: 1fr; gap: 12px; }
  .mfs-actions { justify-content: stretch; }
  .mfs-actions > .btn { flex: 1 1 auto; }
}

/* The CPA nav entry is an <a>, not a <button>; without this it renders ~20px
   tall next to 38px sibling chips at every width. */
#app > aside nav > a {
  display: flex;
  align-items: center;
  min-height: 38px;
}
/* ------------------------------------------- 9.MODULE SHELL (ALL MODULES) */
/* Every legacy module uses the same shell: <div id="app"><aside/><main/></div>
   with #app as a grid. Its phone breakpoint switched to `1fr`, which means
   minmax(auto, 1fr) — `auto` refuses to shrink below the sidebar's min-content
   (all nav labels laid out in a row), so the whole page grew ~2500px wide.
   minmax(0, 1fr) plus min-width:0 lets the shell fit the screen and makes the
   nav itself the horizontal scroller. */
@media (max-width: 860px) {
  #app { grid-template-columns: minmax(0, 1fr) !important; }
  #app > aside { min-width: 0 !important; max-width: 100% !important; }
  #app > main  { min-width: 0 !important; max-width: 100% !important; }
  #app > aside nav {
    min-width: 0;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }
  /* Chips keep their natural width and scroll; shrinking them to fit
     would crush the labels on top of each other. */
  #app > aside nav > * { flex: 0 0 auto; min-width: max-content; }
}

@media (prefers-reduced-motion: reduce) {
  :where(input, select, textarea, .btn, button.mfs-btn) {
    transition: none !important;
  }
  :where(.btn):not(.mfs-raw):active:not(:disabled) { transform: none; }
}

@media (forced-colors: active) {
  :where(input, select, textarea, .btn, button.mfs-btn):not(.mfs-raw) {
    border: 1px solid ButtonBorder !important;
  }
  :where(input, select, textarea):not(.mfs-raw):focus,
  :where(.btn):not(.mfs-raw):focus-visible {
    outline: 2px solid Highlight !important;
    outline-offset: 2px;
  }
}
/* ------------------------------------------------ 10.TABLE PAGINATION */
/* One bar under every table in every module. Reads the module's own tokens so
   it inherits that module's palette and dark mode.

   Geometry is !important on purpose: modules ship broad selectors such as
   `nav{...}` / `button{...}` that would otherwise restyle the injected bar.
   The host element is a <div role="navigation"> for the same reason. */
.mfs-pager {
  display: flex !important;
  flex-wrap: wrap !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 10px 16px !important;
  margin: 0 !important;
  padding: 12px 2px 2px !important;
  background: transparent !important;
  font-family: inherit !important;
  font-size: 13px !important;
  line-height: 1.4 !important;
  color: var(--mfs-muted) !important;
  text-align: left !important;
}
.mfs-pager__summary {
  margin: 0 !important;
  padding: 0 !important;
  font-size: 13px !important;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.mfs-pager__controls {
  display: flex !important;
  flex-wrap: wrap !important;
  align-items: center !important;
  gap: 12px !important;
  margin: 0 !important;
  padding: 0 !important;
}
.mfs-pager__size {
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  margin: 0 !important;
  font-size: 12px !important;
  font-weight: 600 !important;
  color: var(--mfs-muted) !important;
  white-space: nowrap;
}
.mfs-pager__size select {
  width: auto !important;
  height: 32px !important;
  min-height: 32px !important;
  padding: 0 26px 0 8px !important;
  font-size: 13px !important;
}
.mfs-pager__pages {
  display: inline-flex !important;
  align-items: center !important;
  gap: 4px !important;
  margin: 0 !important;
  padding: 0 !important;
}
.mfs-pager__pages button {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  min-width: 32px !important;
  width: auto !important;
  height: 32px !important;
  min-height: 32px !important;
  margin: 0 !important;
  padding: 0 8px !important;
  border: 1px solid var(--mfs-border) !important;
  border-radius: 7px !important;
  background: var(--mfs-surface) !important;
  color: var(--mfs-ink) !important;
  font-family: inherit !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  line-height: 1 !important;
  cursor: pointer !important;
  box-shadow: none !important;
  transition: background-color .16s ease, border-color .16s ease, color .16s ease;
}
.mfs-pager__pages button:hover:not(:disabled):not([aria-current="page"]) {
  border-color: var(--mfs-accent) !important;
  background: var(--mfs-hover) !important;
}
.mfs-pager__pages button:focus-visible {
  outline: 2px solid var(--mfs-accent) !important;
  outline-offset: 2px;
}
.mfs-pager__pages button[aria-current="page"] {
  background: var(--mfs-accent) !important;
  border-color: var(--mfs-accent) !important;
  color: var(--mfs-accent-ink) !important;
  font-weight: 700 !important;
  cursor: default !important;
}
.mfs-pager__pages button:disabled {
  opacity: .4 !important;
  cursor: not-allowed !important;
}
.mfs-pager__gap {
  padding: 0 2px !important;
  color: var(--mfs-faint) !important;
}
.mfs-pager__status {
  display: none;
  font-size: 12.5px !important;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

@media (max-width: 640px) {
  .mfs-pager {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 8px !important;
  }
  .mfs-pager__controls {
    justify-content: space-between !important;
    gap: 8px !important;
  }
  /* Phones get prev/next plus a page indicator, not a row of numbers. */
  .mfs-pager__pages button[data-action="first"],
  .mfs-pager__pages button[data-action="last"],
  .mfs-pager__pages button[data-action="page"] {
    display: none !important;
  }
  .mfs-pager__pages button[data-action] {
    min-width: 40px !important;
    height: 40px !important;
    min-height: 40px !important;
  }
  .mfs-pager__status {
    display: inline !important;
  }
}

/* ---------------------------------------------- 11.LOADING PROGRESS BAR */
/* Thin bar pinned to the top of every document (workspace and each module).
   Colours come from the host module's tokens, so it matches each theme. */
.mfs-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 2147483000;
  pointer-events: none;
  opacity: 0;
  transition: opacity .2s ease;
}
.mfs-progress.is-visible {
  opacity: 1;
}
.mfs-progress > i {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 0 2px 2px 0;
  background: linear-gradient(90deg, var(--mfs-accent, #23507a), #6fa3d6);
  box-shadow: 0 0 10px rgba(111, 163, 214, .7);
  transition: width .18s ease;
}
.mfs-progress.is-error > i {
  background: var(--mfs-danger, #b42318);
  box-shadow: 0 0 10px rgba(180, 35, 24, .6);
}
@media (prefers-reduced-motion: reduce) {
  .mfs-progress,
  .mfs-progress > i {
    transition: none;
  }
}