/* =========================================================================
   MBDC Lead Inquiry Database — app.css

   Internal CRM-style admin tool. Sidebar shell on desktop, drawer on
   mobile, contained content, modal-driven forms, and icon-only row
   actions.

   Sections
     1.  Tokens
     2.  Reset & base
     3.  App shell (sidebar + content + topbar)
     4.  Sidebar nav
     5.  Topbar
     6.  Page header
     7.  Cards
     8.  KPI tiles
     9.  Tables
    10.  Status badges
    11.  Forms
    12.  Buttons (text + icon)
    13.  Messages & empty states
    14.  Pagination
    15.  Modal system
    16.  Toolbar (filters)
    17.  Auth (login) page
    18.  Utilities
    19.  Reduced motion
   ========================================================================= */

/* -------------------------------------------------------------------------
   1. Tokens
   ------------------------------------------------------------------------- */
:root {
  /* Surfaces. */
  --color-page-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-surface-alt: #fafbfc;
  --color-border: #e3e6ea;
  --color-border-strong: #cdd2d8;
  --color-divider: #eceff3;

  /* Text. */
  --color-text: #1a2230;
  --color-text-secondary: #5b6470;
  --color-text-muted: #828a95;
  --color-text-inverse: #ffffff;

  /* Accent. */
  --color-accent: #2B23F8;
  --color-accent-hover: #1c15c4;
  --color-accent-soft: #eef0ff;

  /* Sidebar surface. */
  --color-sidebar-bg: #16118A;
  --color-sidebar-text: #ffffff;
  --color-sidebar-muted: #A4A0FF;
  --color-sidebar-divider: #2019A8;
  --color-sidebar-active-bg: var(--color-accent);
  --color-sidebar-hover-bg: rgba(255, 255, 255, 0.10);

  /* Semantic. */
  --color-danger: #b42318;
  --color-danger-hover: #8c1812;
  --color-danger-bg: #fef3f2;
  --color-danger-border: #fecdca;

  --color-success: #056b3f;
  --color-success-bg: #ecfdf3;
  --color-success-border: #abefc6;

  --color-warning: #92400e;
  --color-warning-bg: #fffaeb;
  --color-warning-border: #fedf89;

  --color-focus: #2B23F8;

  /* Spacing. */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* Radius. */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-pill: 999px;

  /* Shadows. */
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow-md: 0 1px 3px rgba(16, 24, 40, 0.08),
    0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow-lg: 0 12px 24px rgba(16, 24, 40, 0.18),
    0 4px 8px rgba(16, 24, 40, 0.08);

  /* Type. */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;

  --text-xs: 12px;
  --text-sm: 13px;
  --text-base: 14px;
  --text-md: 15px;
  --text-lg: 16px;
  --text-xl: 20px;
  --text-2xl: 24px;
  --text-3xl: 28px;

  --leading-tight: 1.3;
  --leading-normal: 1.5;

  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;

  /* Layout. */
  --sidebar-width: 232px;
  --topbar-height: 56px;
  --content-max: 1200px;
  --container-pad-mobile: 16px;
  --container-pad-desktop: 32px;
}

/* -------------------------------------------------------------------------
   2. Reset & base
   ------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  max-width: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-page-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

img,
table {
  max-width: 100%;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--color-text);
  line-height: var(--leading-tight);
  font-weight: var(--weight-semibold);
}

h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-lg); }
h3 { font-size: var(--text-base); }

p {
  margin: 0 0 var(--space-3);
  color: var(--color-text-secondary);
}

p:last-child {
  margin-bottom: 0;
}

small {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* -------------------------------------------------------------------------
   3. App shell
   ------------------------------------------------------------------------- */
.app-shell {
  display: flex;
  min-height: 100vh;
  position: relative;
}

.app-content {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100vh;
}

.app-main {
  flex: 1 1 auto;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-5) var(--container-pad-mobile);
}

@media (min-width: 768px) {
  .app-main {
    padding: var(--space-6) var(--container-pad-desktop);
  }
}

/* -------------------------------------------------------------------------
   4. Sidebar
   ------------------------------------------------------------------------- */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 22, 35, 0.55);
  z-index: 49;
}

.sidebar-overlay[hidden] {
  display: none;
}

.app-sidebar {
  background: var(--color-sidebar-bg);
  color: var(--color-sidebar-text);
  width: var(--sidebar-width);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 50;
  transform: translateX(-100%);
  transition: transform 200ms ease;
  overflow-y: auto;
}

.app-sidebar.open {
  transform: translateX(0);
}

@media (min-width: 1024px) {
  .app-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    transform: translateX(0);
    transition: none;
  }
  .sidebar-overlay {
    display: none !important;
  }
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-sidebar-divider);
  min-height: var(--topbar-height);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-sidebar-text);
  min-width: 0;
}

.sidebar-brand:hover {
  text-decoration: none;
}

.sidebar-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 26px;
  padding: 0 8px;
  font-size: 11px;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.1em;
  color: var(--color-sidebar-text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.sidebar-product {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-sidebar-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  min-width: 36px;
  min-height: 36px;
  border: 0;
  background: transparent;
  color: var(--color-sidebar-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.sidebar-close:hover {
  color: var(--color-sidebar-text);
  background: var(--color-sidebar-hover-bg);
}

@media (min-width: 1024px) {
  .sidebar-close {
    display: none;
  }
}

.sidebar-nav {
  flex: 1 1 auto;
  padding: var(--space-3) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.nav-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-group-label {
  padding: var(--space-2) var(--space-3) var(--space-1);
  font-size: 11px;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-sidebar-muted);
}

.app-sidebar .nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  min-height: 36px;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-sidebar-muted);
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  text-align: left;
  width: 100%;
}

.app-sidebar .nav-link:hover {
  color: var(--color-sidebar-text);
  background: var(--color-sidebar-hover-bg);
  text-decoration: none;
}

.app-sidebar .nav-link.active,
.app-sidebar .nav-link[aria-current="page"] {
  color: var(--color-sidebar-text);
  background: var(--color-sidebar-active-bg);
}

.nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: var(--space-4) var(--space-3);
  border-top: 1px solid var(--color-sidebar-divider);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.sidebar-user {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 var(--space-2);
  min-width: 0;
}

.sidebar-user-name {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-sidebar-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: var(--text-xs);
  color: var(--color-sidebar-muted);
  text-transform: capitalize;
}

.sidebar-signout {
  width: 100%;
  background: transparent;
  color: var(--color-sidebar-muted);
  border-color: var(--color-sidebar-divider);
}

.sidebar-signout:hover:not(:disabled) {
  background: var(--color-sidebar-hover-bg);
  border-color: var(--color-sidebar-divider);
  color: var(--color-sidebar-text);
}

/* -------------------------------------------------------------------------
   5. Topbar
   ------------------------------------------------------------------------- */
.topbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--container-pad-mobile);
  min-height: var(--topbar-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 30;
}

@media (min-width: 768px) {
  .topbar {
    padding: var(--space-2) var(--container-pad-desktop);
  }
}

.topbar-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  padding: 0;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.topbar-toggle:hover {
  background: var(--color-divider);
  color: var(--color-text);
}

@media (min-width: 1024px) {
  .topbar-toggle {
    display: none;
  }
}

.topbar-title {
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1 1 auto;
  min-width: 0;
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.topbar-user-name {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  white-space: nowrap;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 480px) {
  .topbar-user-name {
    display: none;
  }
}

/* -------------------------------------------------------------------------
   6. Page header
   ------------------------------------------------------------------------- */
.page-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.page-header > div:first-child {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}

.page-title {
  margin: 0;
  font-size: var(--text-3xl);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.page-subtitle {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.page-header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

@media (min-width: 768px) {
  .page-header {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-4);
  }
  .page-header-actions {
    flex-shrink: 0;
  }
}

.page-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-accent);
  text-decoration: none;
  padding: var(--space-1) 0;
}

.back-link:hover {
  text-decoration: underline;
}

/* -------------------------------------------------------------------------
   7. Cards
   ------------------------------------------------------------------------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--space-5);
  min-width: 0;
  margin-bottom: var(--space-5);
}

.card:last-child {
  margin-bottom: 0;
}

.card-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-divider);
}

.card-header h2 {
  margin: 0;
  font-size: var(--text-md);
}

.card-subtitle {
  flex-basis: 100%;
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.account-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 960px) {
  .account-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

.muted {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* -------------------------------------------------------------------------
   8. KPI tiles
   ------------------------------------------------------------------------- */
.kpi-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

@media (min-width: 768px) {
  .kpi-grid {
    grid-template-columns: 280px 1fr;
    align-items: stretch;
  }
}

.kpi-tile {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  min-width: 0;
}

.kpi-tile-primary {
  background: var(--color-sidebar-bg);
  color: var(--color-text-inverse);
  border-color: var(--color-sidebar-bg);
}

.kpi-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
}

.kpi-tile-primary .kpi-label {
  color: rgba(255, 255, 255, 0.72);
}

.kpi-value {
  font-size: var(--text-3xl);
  font-weight: var(--weight-semibold);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--color-text);
}

.kpi-tile-primary .kpi-value {
  color: var(--color-text-inverse);
}

.kpi-meta {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.kpi-tile-primary .kpi-meta {
  color: rgba(255, 255, 255, 0.6);
}

.kpi-section-error {
  margin-left: var(--space-2);
  text-transform: none;
  letter-spacing: 0;
}

.kpi-status-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-3);
}

.kpi-status-list li {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.kpi-status-list li .status-badge {
  align-self: flex-start;
}

.kpi-status-list li > span:last-child {
  font-size: var(--text-2xl);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

/* -------------------------------------------------------------------------
   9. Tables
   ------------------------------------------------------------------------- */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

thead {
  background: var(--color-surface-alt);
}

th,
td {
  padding: 12px var(--space-3);
  border-bottom: 1px solid var(--color-divider);
  text-align: left;
  vertical-align: middle;
}

th {
  font-weight: var(--weight-semibold);
  color: var(--color-text-secondary);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

tbody tr:nth-child(even) {
  background: var(--color-surface-alt);
}

tbody tr:hover {
  background: var(--color-accent-soft);
}

tbody tr:last-child td {
  border-bottom: 0;
}

td {
  color: var(--color-text);
}

.col-actions {
  width: 1%;
  white-space: nowrap;
  text-align: right;
}

.col-number {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

td.col-number {
  font-variant-numeric: tabular-nums;
}

table thead th.col-number {
  text-align: right;
}

/* -------------------------------------------------------------------------
   10. Status badges
   ------------------------------------------------------------------------- */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  font-size: 11px;
  font-weight: var(--weight-semibold);
  line-height: 1.4;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  background: var(--color-divider);
  color: var(--color-text-secondary);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.status-new {
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-color: #d6e1f1;
}

.status-contacted {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border-color: var(--color-warning-border);
}

.status-follow-up {
  background: #f4f0fc;
  color: #5e3da3;
  border-color: #e3d6f6;
}

.status-converted {
  background: var(--color-success-bg);
  color: var(--color-success);
  border-color: var(--color-success-border);
}

.status-not-interested {
  background: #f0f1f3;
  color: #475467;
  border-color: #d8dde3;
}

.role-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  font-size: 11px;
  font-weight: var(--weight-semibold);
  line-height: 1.4;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  letter-spacing: 0.01em;
  white-space: nowrap;
  text-transform: capitalize;
}

.role-admin {
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-color: #d6e1f1;
}

.role-agent {
  background: #f0f1f3;
  color: #475467;
  border-color: #d8dde3;
}

/* -------------------------------------------------------------------------
   11. Forms
   ------------------------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text);
}

.required-marker {
  color: var(--color-danger);
  margin-left: 2px;
}

.form-group small {
  margin-top: 2px;
  color: var(--color-text-muted);
}

input,
select,
textarea {
  width: 100%;
  min-height: 40px;
  padding: 8px var(--space-3);
  font-family: inherit;
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  transition: border-color 120ms, box-shadow 120ms;
}

textarea {
  min-height: 96px;
  resize: vertical;
  line-height: var(--leading-normal);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
}

input:hover:not(:disabled),
select:hover:not(:disabled),
textarea:hover:not(:disabled) {
  border-color: var(--color-text-secondary);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

input[aria-invalid="true"],
select[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: var(--color-danger);
}

input[aria-invalid="true"]:focus,
select[aria-invalid="true"]:focus,
textarea[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(180, 35, 24, 0.12);
}

input:disabled,
select:disabled,
textarea:disabled {
  background: var(--color-divider);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%235b6470' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: var(--space-8);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

input[type="search"] {
  padding-left: 36px;
  background-image: url("data:image/svg+xml,%3Csvg width='14' height='14' viewBox='0 0 14 14' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='6' cy='6' r='4.5' stroke='%235b6470' stroke-width='1.5'/%3E%3Cpath d='M9.5 9.5L12.5 12.5' stroke='%235b6470' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 12px center;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .form-grid .form-group-wide {
    grid-column: 1 / -1;
  }
}

.form-section-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .form-section-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .form-section-fields .form-group-wide {
    grid-column: 1 / -1;
  }
}

/* For New Inquiry: two cards side by side. */
.form-two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 1024px) {
  .form-two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .form-two-col .span-full {
    grid-column: 1 / -1;
  }
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: flex-end;
  align-items: center;
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
}

@media (max-width: 480px) {
  .form-actions {
    flex-direction: column-reverse;
    align-items: stretch;
  }
  .form-actions .btn-primary,
  .form-actions .btn-secondary {
    width: 100%;
  }
}

/* -------------------------------------------------------------------------
   12. Buttons
   ------------------------------------------------------------------------- */
button,
.btn,
.btn-primary,
.btn-secondary,
.btn-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 40px;
  padding: 8px var(--space-4);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  line-height: 1;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: background-color 120ms, border-color 120ms, color 120ms;
  white-space: nowrap;
}

button:hover:not(:disabled),
.btn:hover:not(:disabled) {
  background: var(--color-divider);
  border-color: var(--color-text-secondary);
  text-decoration: none;
}

button:disabled,
.btn:disabled {
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
  border-color: var(--color-border);
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border-color: var(--color-accent);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-text-inverse);
}

.btn-primary:disabled {
  background: var(--color-border-strong);
  border-color: var(--color-border-strong);
  color: var(--color-text-inverse);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-divider);
  border-color: var(--color-text-secondary);
}

.btn-danger {
  background: var(--color-surface);
  color: var(--color-danger);
  border-color: var(--color-danger-border);
}

.btn-danger:hover:not(:disabled) {
  background: var(--color-danger);
  color: var(--color-text-inverse);
  border-color: var(--color-danger);
}

/* Icon-only action buttons used in table rows. */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  min-width: 32px;
  min-height: 32px;
  padding: 0;
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 120ms, color 120ms, border-color 120ms;
}

.icon-btn:hover:not(:disabled) {
  background: var(--color-divider);
  color: var(--color-text);
  border-color: var(--color-border);
}

.icon-btn-danger:hover:not(:disabled) {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-color: var(--color-danger-border);
}

.icon-btn svg {
  width: 16px;
  height: 16px;
  pointer-events: none;
}

.row-actions {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

td.row-actions,
td .row-actions {
  display: flex;
  justify-content: flex-end;
  gap: 2px;
}

/* -------------------------------------------------------------------------
   13. Messages & empty states
   ------------------------------------------------------------------------- */
.message {
  padding: 10px var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: var(--leading-normal);
}

.message-error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-color: var(--color-danger-border);
}

.message-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border-color: var(--color-success-border);
}

.field-error {
  color: var(--color-danger);
  font-size: var(--text-xs);
  margin-top: var(--space-1);
  font-weight: var(--weight-medium);
}

.empty-state {
  padding: var(--space-8) var(--space-4);
  text-align: center;
  color: var(--color-text-muted);
  background: var(--color-surface-alt);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
}

.empty-state-title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
}

.empty-state-body {
  margin: 0 0 var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* -------------------------------------------------------------------------
   14. Pagination
   ------------------------------------------------------------------------- */
.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0 0;
  margin-top: var(--space-3);
  border-top: 1px solid var(--color-divider);
}

.pagination .btn-secondary {
  min-height: 36px;
  padding: 6px var(--space-3);
  font-size: var(--text-sm);
}

.page-indicator,
.page-status {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
}

/* -------------------------------------------------------------------------
   15. Modal system
   ------------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 22, 35, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: 100;
  overflow-y: auto;
}

.modal-backdrop[hidden] {
  display: none;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 480px;
  max-height: calc(100vh - 32px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-md {
  max-width: 560px;
}

.modal-lg {
  max-width: 720px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-divider);
}

.modal-header h2 {
  margin: 0;
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
}

.modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  min-width: 32px;
  min-height: 32px;
  padding: 0;
  background: transparent;
  color: var(--color-text-muted);
  border: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.modal-close:hover {
  background: var(--color-divider);
  color: var(--color-text);
}

.modal-close svg {
  width: 16px;
  height: 16px;
}

.modal-body {
  padding: var(--space-5);
  overflow-y: auto;
}

.modal-body > p:first-child {
  margin-top: 0;
}

.modal-footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: flex-end;
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--color-divider);
  background: var(--color-surface-alt);
}

@media (max-width: 480px) {
  .modal-footer {
    flex-direction: column-reverse;
    align-items: stretch;
  }
  .modal-footer .btn-primary,
  .modal-footer .btn-secondary,
  .modal-footer .btn-danger {
    width: 100%;
  }
}

/* -------------------------------------------------------------------------
   16. Toolbar (filters)
   ------------------------------------------------------------------------- */
.toolbar {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
}

.toolbar-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.toolbar-search {
  flex: 1 1 240px;
  min-width: 200px;
}

.toolbar-search input {
  width: 100%;
}

.toolbar-filter {
  flex: 0 0 auto;
}

.toolbar-filter select {
  min-width: 0;
  width: auto;
}

.toolbar-spacer {
  flex: 1 1 auto;
}

.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.toolbar-divider {
  display: inline-block;
  width: 1px;
  height: 24px;
  background: var(--color-border-strong);
  margin: 0 var(--space-1);
}

/* List card: search + filters + table flow as one surface. */
.list-card {
  padding: 0;
}

.list-card .table-wrapper {
  border: 0;
  border-radius: 0;
}

.list-card .empty-state {
  margin: var(--space-5) var(--space-4);
}

.list-card .pagination {
  margin: 0;
  padding: var(--space-3) var(--space-4);
  justify-content: flex-end;
  border-top: 1px solid var(--color-divider);
}

/* -------------------------------------------------------------------------
   Inquiry details — definition list grid
   ------------------------------------------------------------------------- */
.details-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
}

.details-grid dt {
  padding: var(--space-3) 0 2px;
  font-size: 11px;
  font-weight: var(--weight-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.details-grid dd {
  margin: 0 0 var(--space-3);
  padding: 0 0 var(--space-3);
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text);
  font-size: var(--text-base);
  word-break: break-word;
}

.details-grid dd:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .details-grid {
    grid-template-columns: 200px 1fr;
  }
  .details-grid dt {
    padding: var(--space-3) var(--space-3) var(--space-3) 0;
    border-bottom: 1px solid var(--color-divider);
    margin: 0;
  }
  .details-grid dd {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-divider);
    margin-bottom: 0;
  }
  .details-grid dd:last-of-type {
    border-bottom: 1px solid var(--color-divider);
  }
}

/* -------------------------------------------------------------------------
   Reports grid
   ------------------------------------------------------------------------- */
.reports-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 768px) {
  .reports-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1280px) {
  .reports-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* -------------------------------------------------------------------------
   Dashboard grid (admin)
   ------------------------------------------------------------------------- */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: 2fr 1fr;
  }
}

.action-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.action-list li + li {
  border-top: 1px solid var(--color-divider);
}

.action-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  text-decoration: none;
  color: var(--color-text);
}

.action-item:hover {
  text-decoration: none;
}

.action-item:hover .action-title {
  color: var(--color-accent);
}

.action-icon {
  width: 32px;
  height: 32px;
  min-width: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.action-icon svg {
  width: 16px;
  height: 16px;
}

.action-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.action-title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
}

.action-meta {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* -------------------------------------------------------------------------
   17. Auth (login) page
   ------------------------------------------------------------------------- */
.auth-page {
  background: var(--color-page-bg);
  min-height: 100vh;
}

.auth-shell {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 100vh;
}

@media (min-width: 900px) {
  .auth-shell {
    grid-template-columns: 1fr 1fr;
  }
}

.auth-brand {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-12) var(--space-10);
  background: var(--color-sidebar-bg);
  color: var(--color-text-inverse);
}

@media (min-width: 900px) {
  .auth-brand {
    display: flex;
  }
}

.auth-brand-mark {
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
}

.auth-brand-line {
  margin-top: auto;
  font-size: 32px;
  font-weight: var(--weight-semibold);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-text-inverse);
}

.auth-brand-sub {
  margin: var(--space-2) 0 0;
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.6);
  max-width: 360px;
}

.auth-form-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-5);
  min-height: 100vh;
}

.auth-form-card {
  width: 100%;
  max-width: 380px;
}

.auth-form-card h1 {
  margin: 0 0 var(--space-2);
  font-size: var(--text-2xl);
}

.auth-form-sub {
  margin: 0 0 var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.auth-form-card .form-group {
  margin-bottom: var(--space-4);
}

.auth-form-actions {
  margin-top: var(--space-5);
}

.auth-submit {
  width: 100%;
}

/* -------------------------------------------------------------------------
   18. Utilities
   ------------------------------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* When sidebar is open on mobile, prevent body scroll. */
body.sidebar-open {
  overflow: hidden;
}

@media (min-width: 1024px) {
  body.sidebar-open {
    overflow: auto;
  }
}

/* -------------------------------------------------------------------------
   19. Reduced motion
   ------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}