/* =====================================================================
   Material Design 3 layer - K.D.M.P.M.A.C.U. Milk Procurement
   Loaded after core.css + theme-material.css (compiled from the template
   SCSS with M3 tokens). This file adds the M3 app shell (navigation drawer,
   top app bar), M3 component shapes/states, and the m3-* building blocks
   used by the admin, invoice-history and AI screens.
   ===================================================================== */

:root {
  /* colour roles - light scheme, seed #006493 */
  --md-primary: #006493;
  --md-on-primary: #ffffff;
  --md-primary-container: #cae6ff;
  --md-on-primary-container: #001e30;
  --md-secondary: #50606f;
  --md-on-secondary: #ffffff;
  --md-secondary-container: #d3e4f5;
  --md-on-secondary-container: #0c1d29;
  --md-tertiary: #65587b;
  --md-tertiary-container: #ebddff;
  --md-on-tertiary-container: #211634;
  --md-error: #ba1a1a;
  --md-error-container: #ffdad6;
  --md-on-error-container: #410002;
  --md-success: #1e6c3b;
  --md-success-container: #a6f4b5;
  --md-on-success-container: #00210c;
  --md-warning: #8a5100;
  --md-warning-container: #ffdcbe;
  --md-on-warning-container: #2c1600;
  --md-surface: #f7f9fe;
  --md-surface-dim: #d7dadf;
  --md-surface-container-lowest: #ffffff;
  --md-surface-container-low: #f1f4f9;
  --md-surface-container: #ebeef3;
  --md-surface-container-high: #e5e8ed;
  --md-surface-container-highest: #e0e3e8;
  --md-on-surface: #181c20;
  --md-on-surface-variant: #41474d;
  --md-outline: #71787e;
  --md-outline-variant: #c1c7ce;
  --md-inverse-surface: #2d3135;
  --md-inverse-on-surface: #eef1f6;
  --md-inverse-primary: #8dcdff;

  /* shape */
  --md-shape-xs: 4px;
  --md-shape-sm: 8px;
  --md-shape-md: 12px;
  --md-shape-lg: 16px;
  --md-shape-xl: 28px;
  --md-shape-full: 999px;

  /* elevation (shadow part; tonal part comes from surface roles) */
  --md-elev-1: 0 1px 2px rgba(0, 0, 0, .3), 0 1px 3px 1px rgba(0, 0, 0, .15);
  --md-elev-2: 0 1px 2px rgba(0, 0, 0, .3), 0 2px 6px 2px rgba(0, 0, 0, .15);
  --md-elev-3: 0 4px 8px 3px rgba(0, 0, 0, .15), 0 1px 3px rgba(0, 0, 0, .3);

  /* state layers */
  --md-hover: .08;
  --md-focus: .12;
  --md-press: .12;

  --md-font: 'Roboto', 'Noto Sans Telugu', system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
  --md-drawer-width: 16.25rem; /* same as the template layout (260px) */

  /* map to Bootstrap 5.3 variables used by core.css */
  --bs-body-font-family: var(--md-font);
  --bs-body-bg: var(--md-surface);
  --bs-body-color: var(--md-on-surface-variant);
  --bs-heading-color: var(--md-on-surface);
  --bs-border-color: var(--md-outline-variant);
  --bs-link-color: var(--md-primary);
  --bs-link-hover-color: #004c71;
}

html, body { font-family: var(--md-font); }
body { background: var(--md-surface); color: var(--md-on-surface-variant); -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 { color: var(--md-on-surface); font-weight: 500; letter-spacing: 0; }
::selection { background: var(--md-primary-container); color: var(--md-on-primary-container); }
a { color: var(--md-primary); }
:focus-visible { outline: 2px solid var(--md-primary); outline-offset: 2px; }

/* M3 type scale helpers */
.md-display-small  { font-size: 36px; line-height: 44px; font-weight: 400; color: var(--md-on-surface); }
.md-headline-small { font-size: 24px; line-height: 32px; font-weight: 400; color: var(--md-on-surface); }
.md-title-large    { font-size: 22px; line-height: 28px; font-weight: 400; color: var(--md-on-surface); }
.md-title-medium   { font-size: 16px; line-height: 24px; font-weight: 500; letter-spacing: .15px; color: var(--md-on-surface); }
.md-title-small    { font-size: 14px; line-height: 20px; font-weight: 500; letter-spacing: .1px; }
.md-body-large     { font-size: 16px; line-height: 24px; }
.md-body-medium    { font-size: 14px; line-height: 20px; letter-spacing: .25px; }
.md-body-small     { font-size: 12px; line-height: 16px; letter-spacing: .4px; }
.md-label-large    { font-size: 14px; line-height: 20px; font-weight: 500; letter-spacing: .1px; }
.md-label-medium   { font-size: 12px; line-height: 16px; font-weight: 500; letter-spacing: .5px; }
.md-label-small    { font-size: 11px; line-height: 16px; font-weight: 500; letter-spacing: .5px; }
.md-on-surface-variant { color: var(--md-on-surface-variant) !important; }
.md-tabular { font-variant-numeric: tabular-nums; }

/* =====================================================================
   App shell
   ===================================================================== */

/* ---- Navigation drawer ---- */
.layout-menu.m3-drawer {
  width: var(--md-drawer-width) !important;
  background: var(--md-surface-container-low) !important;
  box-shadow: none !important;
  border-right: 0;
}
.m3-drawer .app-brand {
  height: 72px; padding: 0 16px 0 20px; margin: 0;
  display: flex; align-items: center; gap: 12px;
}
.m3-drawer .app-brand-link { display: flex; align-items: center; gap: 12px; min-width: 0; text-decoration: none; }
.m3-brand-mark {
  width: 40px; height: 40px; border-radius: var(--md-shape-md); flex: none;
  display: grid; place-items: center;
  background: var(--md-primary); color: var(--md-on-primary);
}
.m3-brand-mark .mdi { font-size: 22px; }
.m3-brand-text { display: flex; flex-direction: column; min-width: 0; line-height: 1.15; }
.m3-brand-text strong { font-size: 15px; font-weight: 700; color: var(--md-on-surface); letter-spacing: .2px; }
.m3-brand-text small { font-size: 11.5px; color: var(--md-on-surface-variant); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.m3-drawer .menu-inner { padding: 4px 12px 24px !important; }
.m3-drawer .menu-inner-shadow { display: none !important; }

.m3-drawer-search { padding: 0 12px 8px; }
.m3-drawer-search .m3-search { background: var(--md-surface-container-high); }

.m3-drawer .menu-header {
  margin: 14px 0 4px !important; padding: 0 16px !important;
}
.m3-drawer .menu-header .menu-header-text {
  font-size: 12px; font-weight: 500; letter-spacing: .5px; text-transform: none;
  color: var(--md-on-surface-variant);
}
.m3-drawer .menu-item { margin: 0 !important; width: 100% !important; }
.m3-drawer .menu-inner { box-sizing: border-box; width: 100% !important; }
.m3-drawer .menu-link { width: auto !important; }
.m3-drawer .menu-link {
  min-height: 44px; margin: 1px 0 !important;
  padding: 0 16px !important; border-radius: var(--md-shape-full) !important;
  color: var(--md-on-surface-variant) !important;
  font-size: 14px; font-weight: 500; letter-spacing: .1px;
  position: relative; overflow: hidden;
  transition: background-color .15s ease;
}
.m3-drawer .menu-link::before { display: none !important; }
.m3-drawer .menu-link > .menu-icon { font-size: 20px !important; width: 24px; margin-right: 12px !important; color: inherit !important; }
.m3-drawer .menu-link:hover { background: rgba(24, 28, 32, var(--md-hover)) !important; color: var(--md-on-surface) !important; }
.m3-drawer .menu-item.active > .menu-link:not(.menu-toggle),
.m3-drawer .menu-sub > .menu-item.active > .menu-link,
.bg-menu-theme.m3-drawer .menu-item.active:not(.open) > .menu-link:not(.menu-toggle),
.bg-menu-theme.m3-drawer .menu-item.active > .menu-link:not(.menu-toggle) {
  background: var(--md-secondary-container) !important;
  color: var(--md-on-secondary-container) !important;
  box-shadow: none !important;
  font-weight: 600;
}
.m3-drawer .menu-item.open > .menu-link.menu-toggle,
.m3-drawer .menu-item.active > .menu-link.menu-toggle { background: transparent !important; color: var(--md-on-surface) !important; }
.m3-drawer .menu-sub { padding: 0 0 4px !important; }
.m3-drawer .menu-sub .menu-link { padding-left: 52px !important; min-height: 40px; font-weight: 400; }
.m3-drawer .menu-sub .menu-link > .menu-icon { display: none; }
.m3-drawer .menu-sub .menu-link::after { display: none; }
.m3-drawer .menu-toggle::after { right: 16px !important; }
.m3-drawer .m3-drawer-badge { margin-left: auto; font-size: 11px; padding: 0 6px; border-radius: var(--md-shape-full); background: var(--md-error); color: #fff; }
.m3-drawer .menu-item.m3-module-off > .menu-link { opacity: .55; }
.m3-drawer .m3-drawer-empty { padding: 24px 16px; color: var(--md-on-surface-variant); font-size: 13px; }

/* ---- Top app bar (sticky, never overlaps the page) ---- */
.layout-content-navbar .layout-page { padding-top: 0 !important; }
.layout-page::before { display: none !important; }
.layout-navbar-fixed .layout-content-navbar .layout-navbar.m3-topbar,
.layout-menu-fixed .layout-content-navbar .layout-navbar.m3-topbar,
.layout-navbar.m3-topbar { position: fixed !important; top: 0; z-index: 1075; }   /* left/right set in themes.css (follows the side menu) */
.layout-navbar.m3-topbar {
  height: 64px !important; margin: 0 !important; width: 100% !important; max-width: none !important;
  border-radius: 0 !important;
  background: var(--md-surface) !important;
  box-shadow: none !important;
  padding: 0 16px !important;
  transition: background-color .2s ease, box-shadow .2s ease;
}
.layout-page.window-scrolled .layout-navbar.m3-topbar,
.m3-topbar.is-scrolled { background: var(--md-surface-container) !important; }
.m3-topbar .m3-topbar-title { display: flex; flex-direction: column; min-width: 0; flex: 1 1 auto; margin-left: 4px; }
.m3-topbar .m3-topbar-title .t { font-size: 20px; line-height: 26px; color: var(--md-on-surface); font-weight: 400; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.m3-topbar .m3-topbar-title .s { font-size: 12px; color: var(--md-on-surface-variant); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.m3-topbar .navbar-nav-right { gap: 4px; flex: 0 0 auto !important; width: auto !important; }
.m3-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center; flex: none;
  background: var(--md-primary-container); color: var(--md-on-primary-container);
  font-size: 14px; font-weight: 600;
}
.m3-avatar.lg { width: 48px; height: 48px; font-size: 18px; }
.m3-user-btn { display: flex; align-items: center; gap: 10px; padding: 4px 6px 4px 4px; border-radius: var(--md-shape-full); text-decoration: none; }
.m3-user-btn:hover { background: rgba(24, 28, 32, var(--md-hover)); }
.m3-user-btn .who { display: flex; flex-direction: column; line-height: 1.15; text-align: left; }
.m3-user-btn .who strong { color: var(--md-on-surface); font-size: 13.5px; font-weight: 500; }
.m3-user-btn .who small { color: var(--md-on-surface-variant); font-size: 11.5px; }
@media (max-width: 767.98px) { .m3-user-btn .who { display: none; } }

.content-wrapper > .container-xxl.container-p-y,
.content-wrapper > .container-fluid.container-p-y { padding-top: 8px !important; }

/* ---- Footer ---- */
.m3-footer { color: var(--md-on-surface-variant); font-size: 12.5px; }
.m3-footer a { color: var(--md-on-surface-variant); }

/* =====================================================================
   Component overrides (apply to every legacy page too)
   ===================================================================== */

/* Cards: M3 elevated card */
.card {
  background: var(--md-surface-container-lowest);
  border: 0 !important;
  border-radius: var(--md-shape-lg) !important;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 1px 3px 1px rgba(0, 0, 0, .04) !important;
}
.card-header { background: transparent; border-bottom-color: var(--md-outline-variant); }
.card-header h5, .card-header .card-title, h5.card-header { font-size: 16px; font-weight: 500; color: var(--md-on-surface); }
.m3-card-outlined { box-shadow: none !important; border: 1px solid var(--md-outline-variant) !important; }
.m3-card-filled { background: var(--md-surface-container-highest) !important; box-shadow: none !important; }

/* Buttons: M3 common buttons */
.btn {
  min-height: 40px; padding: .5rem 1.5rem;
  font-size: 14px; font-weight: 500; letter-spacing: .1px; text-transform: none !important;
  border-radius: var(--md-shape-full) !important;
  box-shadow: none !important;
  transition: background-color .15s ease, box-shadow .15s ease, color .15s ease;
}
.btn-sm { min-height: 32px; padding: .25rem 1rem; font-size: 13px; }
.btn-lg { min-height: 48px; padding: .75rem 1.75rem; font-size: 15px; }
.btn-icon { min-height: 0; padding: 0; width: 40px; height: 40px; }
.btn-icon.btn-sm { width: 32px; height: 32px; }
.btn-primary { background: var(--md-primary) !important; border-color: var(--md-primary) !important; color: var(--md-on-primary) !important; }
.btn-primary:hover { box-shadow: var(--md-elev-1) !important; background: #0a6c9d !important; }
.btn-primary:disabled, .btn-primary.disabled { background: rgba(24, 28, 32, .12) !important; border-color: transparent !important; color: rgba(24, 28, 32, .38) !important; }
.btn-outline-primary { color: var(--md-primary) !important; border-color: var(--md-outline) !important; background: transparent !important; }
.btn-outline-primary:hover { background: rgba(0, 100, 147, var(--md-hover)) !important; }
.btn-outline-secondary { color: var(--md-on-surface-variant) !important; border-color: var(--md-outline) !important; }
.btn-outline-secondary:hover { background: rgba(24, 28, 32, var(--md-hover)) !important; color: var(--md-on-surface) !important; }
.btn-secondary, .btn-label-primary, .btn-label-secondary, .m3-btn-tonal {
  background: var(--md-secondary-container) !important; color: var(--md-on-secondary-container) !important; border-color: transparent !important;
}
.btn-secondary:hover, .btn-label-primary:hover, .btn-label-secondary:hover, .m3-btn-tonal:hover { box-shadow: var(--md-elev-1) !important; }
.btn-text, .btn-text-primary, .m3-btn-text { background: transparent !important; border-color: transparent !important; color: var(--md-primary) !important; padding-left: 12px; padding-right: 12px; }
.btn-text:hover, .btn-text-primary:hover, .m3-btn-text:hover { background: rgba(0, 100, 147, var(--md-hover)) !important; }
.btn-danger { background: var(--md-error) !important; border-color: var(--md-error) !important; }
.btn-success { background: var(--md-success) !important; border-color: var(--md-success) !important; }
.btn-outline-danger { color: var(--md-error) !important; border-color: var(--md-outline) !important; }
.btn-outline-danger:hover { background: rgba(186, 26, 26, var(--md-hover)) !important; }
.m3-icon-btn {
  width: 40px; height: 40px; border-radius: 50%; border: 0; background: transparent;
  display: inline-grid; place-items: center; color: var(--md-on-surface-variant); cursor: pointer;
}
.m3-icon-btn:hover { background: rgba(24, 28, 32, var(--md-hover)); color: var(--md-on-surface); }
.m3-icon-btn .mdi { font-size: 22px; line-height: 1; }
.m3-icon-btn.sm { width: 32px; height: 32px; }
.m3-icon-btn.sm .mdi { font-size: 18px; }

/* FAB */
.m3-fab {
  position: fixed; right: 24px; bottom: 24px; z-index: 1030;
  min-width: 56px; height: 56px; padding: 0 20px; border-radius: var(--md-shape-lg); border: 0;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  background: var(--md-primary-container); color: var(--md-on-primary-container);
  box-shadow: var(--md-elev-3); font-weight: 500; text-decoration: none;
}
.m3-fab:hover { color: var(--md-on-primary-container); box-shadow: 0 6px 10px 4px rgba(0,0,0,.15), 0 2px 3px rgba(0,0,0,.3); }
.m3-fab .mdi { font-size: 24px; }

/* Text fields: M3 outlined */
.form-control, .form-select {
  min-height: 48px; border-radius: var(--md-shape-xs) !important;
  border: 1px solid var(--md-outline) !important;
  background-color: transparent; color: var(--md-on-surface);
  font-size: 15px;
}
.form-control-sm, .form-select-sm { min-height: 36px; font-size: 13.5px; }
.form-control:hover, .form-select:hover { border-color: var(--md-on-surface) !important; }
.form-control:focus, .form-select:focus {
  border-color: var(--md-primary) !important; box-shadow: inset 0 0 0 1px var(--md-primary) !important;
}
.form-control.is-invalid, .was-validated .form-control:invalid { border-color: var(--md-error) !important; box-shadow: inset 0 0 0 1px var(--md-error) !important; }
textarea.form-control { min-height: 96px; }
.form-label { font-size: 12.5px; font-weight: 500; color: var(--md-on-surface-variant); margin-bottom: 6px; letter-spacing: .2px; }
.form-text { color: var(--md-on-surface-variant); font-size: 12px; }
.input-group-text { border-color: var(--md-outline) !important; background: transparent; }
.form-floating > label { color: var(--md-on-surface-variant); }
.form-floating-outline > .form-control:focus ~ label,
.form-floating > .form-control:focus ~ label { color: var(--md-primary) !important; }
.invalid-feedback { color: var(--md-error); font-size: 12px; }

/* Checkboxes / radios / switches */
.form-check-input { border-color: var(--md-on-surface-variant); }
.form-check-input:checked { background-color: var(--md-primary) !important; border-color: var(--md-primary) !important; }
.form-check-input:focus { box-shadow: 0 0 0 6px rgba(0, 100, 147, .12) !important; }
.form-switch .form-check-input { width: 52px; height: 32px; margin-top: -4px; border-width: 2px; border-color: var(--md-outline); background-color: var(--md-surface-container-highest); }
.form-switch .form-check-input:checked { background-color: var(--md-primary) !important; }
.form-switch .form-check-label { padding-left: 10px; padding-top: 2px; }

/* Tables */
.table { --bs-table-bg: transparent; color: var(--md-on-surface); }
.table > thead { background: var(--md-surface-container-low); }
.table > thead th {
  color: var(--md-on-surface-variant) !important; font-size: 12px; font-weight: 500;
  text-transform: none !important; letter-spacing: .3px; border-bottom: 1px solid var(--md-outline-variant) !important;
  padding-top: 12px !important; padding-bottom: 12px !important; white-space: nowrap;
}
.table > tbody > tr > td { border-color: var(--md-outline-variant); vertical-align: middle; }
.table-hover > tbody > tr:hover > * { --bs-table-accent-bg: rgba(0, 100, 147, .04); }
.m3-table-wrap { border-radius: var(--md-shape-lg); overflow: auto; }

/* Badges -> M3 assist chips / small badges */
.badge { border-radius: var(--md-shape-sm); font-weight: 500; letter-spacing: .2px; }
.bg-label-primary { background: var(--md-primary-container) !important; color: var(--md-on-primary-container) !important; }
.bg-label-success { background: var(--md-success-container) !important; color: var(--md-on-success-container) !important; }
.bg-label-danger  { background: var(--md-error-container) !important; color: var(--md-on-error-container) !important; }
.bg-label-warning { background: var(--md-warning-container) !important; color: var(--md-on-warning-container) !important; }
.bg-label-secondary { background: var(--md-surface-container-high) !important; color: var(--md-on-surface-variant) !important; }
.bg-label-info { background: var(--md-tertiary-container) !important; color: var(--md-on-tertiary-container) !important; }

/* Alerts */
.alert { border: 0; border-radius: var(--md-shape-md); }
.alert-success { background: var(--md-success-container); color: var(--md-on-success-container); }
.alert-danger  { background: var(--md-error-container); color: var(--md-on-error-container); }
.alert-warning { background: var(--md-warning-container); color: var(--md-on-warning-container); }
.alert-info, .alert-primary { background: var(--md-primary-container); color: var(--md-on-primary-container); }

/* Dialogs, menus */
.modal-content { border: 0; border-radius: var(--md-shape-xl) !important; background: var(--md-surface-container-high); box-shadow: var(--md-elev-3); }
.modal-header, .modal-footer { border: 0; }
.modal-title { font-size: 22px; font-weight: 400; color: var(--md-on-surface); }
.dropdown-menu {
  border: 0; border-radius: var(--md-shape-xs); padding: 8px 0;
  background: var(--md-surface-container); box-shadow: var(--md-elev-2);
}
.dropdown-item { min-height: 44px; display: flex; align-items: center; gap: 12px; padding: 0 16px; color: var(--md-on-surface); font-size: 14px; }
.dropdown-item:hover, .dropdown-item:focus { background: rgba(24, 28, 32, var(--md-hover)); color: var(--md-on-surface); }
.dropdown-item .mdi { font-size: 20px; color: var(--md-on-surface-variant); }
.dropdown-divider { border-color: var(--md-outline-variant); margin: 8px 0; }

/* Tabs (M3 primary tabs) */
.nav-tabs { border-bottom: 1px solid var(--md-outline-variant); gap: 0; }
.nav-tabs .nav-link {
  border: 0 !important; border-radius: 0 !important; background: transparent !important;
  color: var(--md-on-surface-variant); font-weight: 500; font-size: 14px;
  padding: 14px 20px; position: relative;
}
.nav-tabs .nav-link:hover { background: rgba(24, 28, 32, var(--md-hover)) !important; color: var(--md-on-surface); }
.nav-tabs .nav-link.active { color: var(--md-primary) !important; box-shadow: none !important; }
.nav-tabs .nav-link.active::after {
  content: ''; position: absolute; left: 16px; right: 16px; bottom: 0; height: 3px;
  border-radius: 3px 3px 0 0; background: var(--md-primary);
}
.nav-pills .nav-link { border-radius: var(--md-shape-full); }
.nav-pills .nav-link.active { background: var(--md-secondary-container) !important; color: var(--md-on-secondary-container) !important; box-shadow: none !important; }

/* Pagination */
.pagination { gap: 4px; }
.page-link { border: 0 !important; border-radius: var(--md-shape-full) !important; min-width: 36px; height: 36px; display: grid; place-items: center; color: var(--md-on-surface-variant); background: transparent; }
.page-item.active .page-link { background: var(--md-secondary-container) !important; color: var(--md-on-secondary-container) !important; box-shadow: none !important; }
.page-item.disabled .page-link { background: transparent; opacity: .4; }

/* DataTables + Select2 (used by many legacy pages) */
.dataTables_wrapper .dataTables_filter input, .dataTables_wrapper .dataTables_length select { border-radius: var(--md-shape-xs); border: 1px solid var(--md-outline); }
.select2-container--default .select2-selection { border-radius: var(--md-shape-xs) !important; border-color: var(--md-outline) !important; min-height: 48px; }
.select2-container--default .select2-selection--single .select2-selection__rendered { line-height: 46px !important; }
.select2-container--default .select2-selection--single .select2-selection__arrow { height: 46px !important; }
.select2-container--default.select2-container--focus .select2-selection { border-color: var(--md-primary) !important; box-shadow: inset 0 0 0 1px var(--md-primary); }
.select2-dropdown { border: 0 !important; box-shadow: var(--md-elev-2); border-radius: var(--md-shape-xs) !important; }
.select2-container--default .select2-results__option--highlighted { background: var(--md-secondary-container) !important; color: var(--md-on-secondary-container) !important; }
.swal2-popup { border-radius: var(--md-shape-xl) !important; font-family: var(--md-font) !important; }
.swal2-styled.swal2-confirm { border-radius: var(--md-shape-full) !important; background: var(--md-primary) !important; }
.swal2-styled.swal2-cancel { border-radius: var(--md-shape-full) !important; }

/* Breadcrumb heading used by legacy pages: <h4 class="py-3 mb-4"><span class="text-muted fw-light">X /</span> Y</h4> */
.content-wrapper h4.py-3 { font-size: 22px; font-weight: 400; color: var(--md-on-surface); }

/* =====================================================================
   m3-* building blocks
   ===================================================================== */

/* Page header */
.m3-page-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin: 8px 0 20px; }
.m3-page-header .crumbs { font-size: 12.5px; color: var(--md-on-surface-variant); margin-bottom: 2px; display: flex; gap: 6px; align-items: center; }
.m3-page-header .crumbs a { color: var(--md-on-surface-variant); text-decoration: none; }
.m3-page-header .crumbs a:hover { color: var(--md-primary); }
.m3-page-header h1 { font-size: 26px; line-height: 34px; font-weight: 400; margin: 0; color: var(--md-on-surface); }
.m3-page-header .sub { color: var(--md-on-surface-variant); font-size: 14px; margin-top: 2px; max-width: 70ch; }
.m3-page-header .actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* Surfaces */
.m3-surface { background: var(--md-surface-container-lowest); border-radius: var(--md-shape-lg); }
.m3-surface-low { background: var(--md-surface-container-low); border-radius: var(--md-shape-lg); }
.m3-surface-high { background: var(--md-surface-container-high); border-radius: var(--md-shape-lg); }
.m3-section-title { font-size: 16px; font-weight: 500; color: var(--md-on-surface); margin: 0; }
.m3-section-sub { font-size: 13px; color: var(--md-on-surface-variant); margin: 2px 0 0; }

/* KPI / stat cards */
.m3-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 20px; }
.m3-stat { background: var(--md-surface-container-lowest); border-radius: var(--md-shape-lg); padding: 16px 18px; box-shadow: 0 1px 2px rgba(0,0,0,.06); position: relative; overflow: hidden; }
.m3-stat .label { font-size: 12.5px; font-weight: 500; color: var(--md-on-surface-variant); display: flex; align-items: center; gap: 8px; }
.m3-stat .label .mdi { font-size: 18px; color: var(--md-primary); }
.m3-stat .value { font-size: 28px; line-height: 36px; font-weight: 400; color: var(--md-on-surface); margin-top: 6px; font-variant-numeric: tabular-nums; }
.m3-stat .hint { font-size: 12px; color: var(--md-on-surface-variant); margin-top: 2px; }
.m3-stat.accent { background: var(--md-primary-container); }
.m3-stat.accent .value, .m3-stat.accent .label, .m3-stat.accent .label .mdi, .m3-stat.accent .hint { color: var(--md-on-primary-container); }

/* Chips */
.m3-chip {
  display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 10px;
  border-radius: var(--md-shape-sm); border: 1px solid var(--md-outline-variant);
  font-size: 12.5px; font-weight: 500; color: var(--md-on-surface-variant); background: transparent; white-space: nowrap;
}
.m3-chip .mdi { font-size: 16px; }
.m3-chip.filled { border-color: transparent; background: var(--md-secondary-container); color: var(--md-on-secondary-container); }
.m3-chip.primary { border-color: transparent; background: var(--md-primary-container); color: var(--md-on-primary-container); }
.m3-chip.success { border-color: transparent; background: var(--md-success-container); color: var(--md-on-success-container); }
.m3-chip.error   { border-color: transparent; background: var(--md-error-container); color: var(--md-on-error-container); }
.m3-chip.warning { border-color: transparent; background: var(--md-warning-container); color: var(--md-on-warning-container); }
.m3-chip.tertiary{ border-color: transparent; background: var(--md-tertiary-container); color: var(--md-on-tertiary-container); }
.m3-chip.sm { height: 22px; padding: 0 8px; font-size: 11.5px; }
a.m3-chip { text-decoration: none; }
a.m3-chip:hover { background: rgba(24,28,32,var(--md-hover)); }

/* Filter chips row (choice) */
.m3-filter-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.m3-filter-chips a { text-decoration: none; }
.m3-filter-chips .on { background: var(--md-secondary-container); color: var(--md-on-secondary-container); border-color: transparent; }

/* Segmented buttons */
.m3-segmented { display: inline-flex; border: 1px solid var(--md-outline); border-radius: var(--md-shape-full); overflow: hidden; }
.m3-segmented > a, .m3-segmented > button, .m3-segmented > label {
  display: inline-flex; align-items: center; gap: 6px; height: 40px; padding: 0 16px; margin: 0;
  font-size: 14px; font-weight: 500; color: var(--md-on-surface); background: transparent; border: 0; text-decoration: none; cursor: pointer;
}
.m3-segmented > * + * { border-left: 1px solid var(--md-outline) !important; }
.m3-segmented > .on, .m3-segmented input:checked + label { background: var(--md-secondary-container); color: var(--md-on-secondary-container); }

/* Search field (M3 search bar) */
.m3-search { display: flex; align-items: center; gap: 8px; height: 48px; padding: 0 6px 0 16px; border-radius: var(--md-shape-full); background: var(--md-surface-container-high); }
.m3-search .mdi { font-size: 20px; color: var(--md-on-surface-variant); }
.m3-search input { border: 0; outline: 0; background: transparent; flex: 1; min-width: 0; font-size: 15px; color: var(--md-on-surface); }
.m3-search input::placeholder { color: var(--md-on-surface-variant); }

/* Toolbar / filter bar */
.m3-toolbar { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; padding: 16px; }
.m3-toolbar .grow { flex: 1 1 220px; }

/* Lists */
.m3-list { list-style: none; margin: 0; padding: 4px 0; }
.m3-list > li { display: flex; align-items: center; gap: 16px; padding: 10px 16px; min-height: 56px; }
.m3-list > li + li { border-top: 1px solid var(--md-outline-variant); }
.m3-list .lead { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--md-secondary-container); color: var(--md-on-secondary-container); flex: none; }
.m3-list .body { flex: 1; min-width: 0; }
.m3-list .body .h { color: var(--md-on-surface); font-size: 15px; }
.m3-list .body .s { color: var(--md-on-surface-variant); font-size: 13px; }

/* Empty state */
.m3-empty { text-align: center; padding: 48px 16px; color: var(--md-on-surface-variant); }
.m3-empty .mdi { font-size: 48px; color: var(--md-outline); display: block; margin-bottom: 8px; }

/* Snackbar (flash messages) */
.m3-snackbar-host { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 2000; display: flex; flex-direction: column; gap: 8px; width: min(560px, calc(100vw - 32px)); }
.m3-snackbar {
  display: flex; align-items: center; gap: 12px; min-height: 48px; padding: 6px 8px 6px 16px;
  background: var(--md-inverse-surface); color: var(--md-inverse-on-surface);
  border-radius: var(--md-shape-xs); box-shadow: var(--md-elev-3); font-size: 14px;
  animation: m3-snack-in .2s ease-out;
}
.m3-snackbar .msg { flex: 1; }
.m3-snackbar .mdi { font-size: 20px; }
.m3-snackbar.error .mdi { color: #ffb4ab; }
.m3-snackbar.success .mdi { color: #8bd89c; }
.m3-snackbar button { background: transparent; border: 0; color: var(--md-inverse-primary); font-weight: 500; padding: 8px 12px; border-radius: var(--md-shape-full); }
.m3-snackbar button:hover { background: rgba(255,255,255,.08); }
@keyframes m3-snack-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* Progress (budget / free tier) */
.m3-progress { height: 6px; border-radius: 3px; background: var(--md-surface-container-highest); overflow: hidden; }
.m3-progress > span { display: block; height: 100%; background: var(--md-primary); border-radius: 3px; }
.m3-progress.warn > span { background: var(--md-warning); }
.m3-progress.danger > span { background: var(--md-error); }

/* Permission matrix */
.m3-matrix { width: 100%; border-collapse: separate; border-spacing: 0; }
.m3-matrix th, .m3-matrix td { padding: 8px 10px; border-bottom: 1px solid var(--md-outline-variant); }
.m3-matrix thead th { position: sticky; top: 0; z-index: 2; background: var(--md-surface-container-low); font-size: 12px; font-weight: 500; color: var(--md-on-surface-variant); text-align: center; white-space: nowrap; }
.m3-matrix thead th:first-child { text-align: left; }
.m3-matrix td.c { text-align: center; width: 92px; }
.m3-matrix tr.mod td { background: var(--md-surface-container); font-weight: 500; color: var(--md-on-surface); }
.m3-matrix tr.mod td .mdi { color: var(--md-primary); margin-right: 8px; }
.m3-matrix .na { color: var(--md-outline-variant); }
.m3-matrix .form-check-input { width: 20px; height: 20px; margin: 0; float: none; cursor: pointer; }

/* Role list rail */
.m3-rail { display: flex; flex-direction: column; gap: 2px; }
.m3-rail a {
  display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-radius: var(--md-shape-full);
  color: var(--md-on-surface-variant); text-decoration: none; font-weight: 500; font-size: 14px;
}
.m3-rail a:hover { background: rgba(24,28,32,var(--md-hover)); color: var(--md-on-surface); }
.m3-rail a.on { background: var(--md-secondary-container); color: var(--md-on-secondary-container); }
.m3-rail a .count { margin-left: auto; font-size: 12px; font-weight: 500; color: inherit; opacity: .8; }

/* Timeline (invoice history) */
.m3-timeline { list-style: none; margin: 0; padding: 0 0 0 28px; position: relative; }
.m3-timeline::before { content: ''; position: absolute; left: 11px; top: 6px; bottom: 6px; width: 2px; background: var(--md-outline-variant); }
.m3-timeline > li { position: relative; padding-bottom: 20px; }
.m3-timeline > li::before { content: ''; position: absolute; left: -23px; top: 4px; width: 14px; height: 14px; border-radius: 50%; background: var(--md-surface-container-lowest); border: 3px solid var(--md-primary); }
.m3-timeline > li.live::before { background: var(--md-primary); }
.m3-timeline > li.deleted::before { border-color: var(--md-error); }
.m3-diff { font-variant-numeric: tabular-nums; }
.m3-diff .from { color: var(--md-error); text-decoration: line-through; text-decoration-thickness: 1px; }
.m3-diff .to { color: var(--md-success); font-weight: 500; }

/* Code-ish (permission slugs) */
.m3-code { font-family: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; color: var(--md-on-surface-variant); background: var(--md-surface-container); padding: 1px 6px; border-radius: var(--md-shape-xs); }

/* Login */
.m3-auth { min-height: 100vh; display: grid; grid-template-columns: 1.1fr 1fr; background: var(--md-surface); }
.m3-auth-hero {
  position: relative; overflow: hidden; color: #fff; padding: 48px;
  background: radial-gradient(1200px 600px at -10% -10%, #2b8cc4 0%, transparent 60%), linear-gradient(160deg, #004b70 0%, #006493 55%, #1a7f9e 100%);
  display: flex; flex-direction: column; justify-content: space-between;
}
.m3-auth-hero .org { display: flex; align-items: center; gap: 14px; }
.m3-auth-hero .org img { width: 56px; height: 56px; border-radius: 16px; background: #fff; padding: 6px; object-fit: contain; }
.m3-auth-hero .org strong { display: block; font-size: 18px; letter-spacing: .3px; }
.m3-auth-hero .org small { opacity: .85; font-size: 13px; }
.m3-auth-hero h2 { color: #fff; font-size: 40px; line-height: 48px; font-weight: 400; max-width: 16ch; margin: 0 0 16px; }
.m3-auth-hero p { color: rgba(255,255,255,.88); font-size: 16px; line-height: 24px; max-width: 46ch; }
.m3-auth-hero .facts { display: flex; gap: 12px; flex-wrap: wrap; }
.m3-auth-hero .facts span { display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 12px; border-radius: var(--md-shape-sm); background: rgba(255,255,255,.14); font-size: 13px; }
.m3-auth-hero .drop { position: absolute; right: -80px; bottom: -80px; width: 360px; height: 360px; border-radius: 50%; background: rgba(255,255,255,.06); }
.m3-auth-panel { display: grid; place-items: center; padding: 32px 24px; }
.m3-auth-card { width: min(420px, 100%); }
.m3-auth-card h1 { font-size: 28px; line-height: 36px; font-weight: 400; color: var(--md-on-surface); margin: 0 0 6px; }
.m3-auth-card .lead { color: var(--md-on-surface-variant); font-size: 15px; margin-bottom: 28px; }
.m3-field { position: relative; margin-bottom: 20px; }
.m3-field input {
  width: 100%; height: 56px; padding: 18px 48px 6px 16px; font-size: 16px; color: var(--md-on-surface);
  border: 1px solid var(--md-outline); border-radius: var(--md-shape-xs); background: transparent; outline: 0;
}
.m3-field label { position: absolute; left: 12px; top: 17px; padding: 0 4px; font-size: 16px; color: var(--md-on-surface-variant); pointer-events: none; transition: all .15s ease; background: var(--md-surface); }
.m3-field input:focus { border-color: var(--md-primary); box-shadow: inset 0 0 0 1px var(--md-primary); }
.m3-field input:focus + label, .m3-field input:not(:placeholder-shown) + label { top: -8px; font-size: 12px; color: var(--md-primary); }
.m3-field input:not(:focus):not(:placeholder-shown) + label { color: var(--md-on-surface-variant); }
.m3-field .trail { position: absolute; right: 4px; top: 8px; }
.m3-field.error input { border-color: var(--md-error); }
.m3-field .support { font-size: 12px; color: var(--md-on-surface-variant); padding: 4px 16px 0; }
@media (max-width: 991.98px) {
  .m3-auth { grid-template-columns: 1fr; }
  .m3-auth-hero { padding: 28px 24px; min-height: auto; }
  .m3-auth-hero h2 { font-size: 28px; line-height: 36px; margin-top: 24px; }
  .m3-auth-hero p, .m3-auth-hero .drop { display: none; }
}

/* Error page */
.m3-error { min-height: 70vh; display: grid; place-items: center; text-align: center; padding: 24px; }
.m3-error .badge-icon { width: 96px; height: 96px; border-radius: 28px; margin: 0 auto 20px; display: grid; place-items: center; background: var(--md-error-container); color: var(--md-on-error-container); }
.m3-error .badge-icon .mdi { font-size: 48px; }

/* Utilities */
.gap-12 { gap: 12px !important; }
.m3-muted { color: var(--md-on-surface-variant) !important; }
.m3-num { font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.m3-truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.m3-sticky-actions { position: sticky; bottom: 0; z-index: 5; background: var(--md-surface-container-lowest); border-top: 1px solid var(--md-outline-variant); padding: 12px 16px; border-radius: 0 0 var(--md-shape-lg) var(--md-shape-lg); display: flex; gap: 8px; justify-content: flex-end; }

@media print {
  .layout-menu, .layout-navbar, .content-footer, .m3-fab, .m3-snackbar-host, .m3-page-header .actions { display: none !important; }
  .layout-page { padding: 0 !important; }
}
.m3-segmented > .btn-check:first-child + label { border-left: 0 !important; }

/* =====================================================================
   Drawer: standalone layout rules
   ---------------------------------------------------------------------
   These copy the parts of the template's core.css the side menu needs,
   so the drawer lays out correctly (icon + label on one row, chevron on
   the right, sub-menus folding) even if core.css is missing, old or
   served from a stale cache. When core.css loads, these rules agree with it.
   ===================================================================== */
.m3-drawer { display: flex; flex-direction: column; flex: 0 0 auto; }
.m3-drawer .menu-inner,
.m3-drawer .menu-sub { list-style: none !important; margin: 0; display: flex; flex-direction: column; }
.m3-drawer .menu-inner { flex: 1 1 auto; overflow-y: auto; overflow-x: hidden; min-height: 0; }
.m3-drawer .menu-item { display: block; list-style: none; position: relative; }
.m3-drawer .menu-link {
  display: flex !important; flex-direction: row !important; align-items: center !important;
  flex-wrap: nowrap !important; text-decoration: none !important; cursor: pointer;
}
.m3-drawer .menu-link > .menu-icon { flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center; line-height: 1; }
.m3-drawer .menu-link > .m3-truncate,
.m3-drawer .menu-link > div { flex: 1 1 auto; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
/* sub-menus: closed unless the item is open */
.m3-drawer .menu-sub { display: none; }
.m3-drawer .menu-item.open > .menu-sub { display: flex; }
/* chevron on the right of group headers */
.m3-drawer .menu-link.menu-toggle { padding-right: 40px !important; }
.m3-drawer .menu-link.menu-toggle::after {
  content: "" !important; position: absolute !important; top: 50% !important; right: 20px !important; left: auto !important;
  width: 7px !important; height: 7px !important; margin-top: -5px;
  border: 0 solid currentColor !important; border-width: 0 2px 2px 0 !important; border-radius: 1px;
  background: none !important; font-family: inherit !important; font-size: 0 !important;
  transform: rotate(-45deg); transition: transform .2s ease;
}
.m3-drawer .menu-item.open > .menu-link.menu-toggle::after { transform: rotate(45deg); margin-top: -7px; }
.m3-drawer .menu-sub .menu-link.menu-toggle::after { display: block !important; }

/* desktop (>= 1200px): drawer fixed on the left, page shifted right */
@media (min-width: 1200px) {
  .layout-menu.m3-drawer { position: fixed !important; top: 0; bottom: 0; left: 0; height: 100vh !important; z-index: 1080; transform: none !important; }
  .layout-content-navbar .layout-page { padding-left: var(--md-drawer-width) !important; }
  .m3-drawer .layout-menu-toggle.d-xl-none { display: none !important; }
}
/* tablet / phone (< 1200px): drawer slides in over the page */
@media (max-width: 1199.98px) {
  .layout-menu.m3-drawer {
    position: fixed !important; top: 0 !important; bottom: 0; left: 0 !important; height: 100% !important;
    z-index: 1100; transform: translate3d(-100%, 0, 0); transition: transform .25s ease;
    margin: 0 !important;
  }
  html.layout-menu-expanded .layout-menu.m3-drawer { transform: translate3d(0, 0, 0) !important; box-shadow: 0 8px 24px rgba(0,0,0,.18) !important; }
  .layout-content-navbar .layout-page { padding-left: 0 !important; }
  html.layout-menu-expanded .layout-overlay { display: block; position: fixed; inset: 0; z-index: 1099; background: rgba(0,0,0,.32); }
}