/* =============================================================================
   OSEMFLOW — Main Stylesheet
   =============================================================================
   This file defines the entire visual design system for OSEMFLOW.
   It's organized as follows:
   1. CSS Custom Properties (design tokens — colors, fonts, spacing)
   2. Reset & Base Styles
   3. Layout (shell, sidebar, top bar, content area)
   4. Typography
   5. Components (buttons, inputs, cards, tables, badges, etc.)
   6. Loading States (skeleton screens, spinners)
   7. Error & Notification Styles
   8. Mobile-specific overrides
   9. Dark mode overrides
   10. Print styles

   CRITICAL RULE: Never hardcode color hex values outside of this file.
   Always use CSS variables (e.g. var(--color-brand)) everywhere else.
   ============================================================================= */

/* =============================================================================
   1. CSS CUSTOM PROPERTIES — Light Mode (Default)
   ============================================================================= */
:root {
  /* Brand Colors */
  --color-brand:           #1A6FB5;
  --color-brand-hover:     #3D8FD4;
  --color-brand-dark:      #0F2044;

  /* Semantic Colors */
  --color-success:         #16A34A;
  --color-warning:         #D97706;
  --color-danger:          #DC2626;
  --color-info:            #7C3AED;

  /* Badge Backgrounds (light tints of semantic colors) */
  --color-badge-success-bg: #DCFCE7;
  --color-badge-warning-bg: #FEF3C7;
  --color-badge-danger-bg:  #FEE2E2;
  --color-badge-info-bg:    #EDE9FE;
  --color-badge-neutral-bg: #F1F5F9;

  /* Page & Surface Colors */
  --color-bg-page:         #F4F6FA;
  --color-bg-card:         #FFFFFF;
  --color-bg-sidebar:      #0F2044;
  --color-bg-sidebar-item-hover: rgba(255,255,255,0.08);
  --color-bg-sidebar-item-active: #1A6FB5;
  --color-bg-topbar:       #FFFFFF;

  /* Text Colors */
  --color-text-primary:    #111827;
  --color-text-secondary:  #6B7280;
  --color-text-muted:      #9CA3AF;
  --color-text-on-brand:   #FFFFFF;
  --color-text-sidebar:    #CBD5E1;
  --color-text-sidebar-active: #FFFFFF;

  /* Border Colors */
  --color-border:          #E2E8F0;
  --color-border-focus:    #1A6FB5;
  --color-border-error:    #DC2626;

  /* Skeleton / Loading */
  --color-skeleton:        #E2E8F0;
  --color-skeleton-shine:  #F0F4F8;

  /* Input */
  --color-input-bg:        #FFFFFF;
  --color-input-border:    #D1D5DB;

  /* Table */
  --color-table-header-bg: #F8FAFC;
  --color-table-stripe:    #F8FAFC;
  --color-table-hover:     #EFF6FF;

  /* Shadows */
  --shadow-card:     0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-modal:    0 20px 60px rgba(0,0,0,0.15);
  --shadow-dropdown: 0 4px 20px rgba(0,0,0,0.12);

  /* Layout Dimensions */
  --sidebar-width:         240px;
  --sidebar-width-collapsed: 64px;
  --topbar-height:         56px;
  --content-max-width:     1400px;

  /* Spacing */
  --spacing-xs:  4px;
  --spacing-sm:  8px;
  --spacing-md:  16px;
  --spacing-lg:  24px;
  --spacing-xl:  32px;
  --spacing-2xl: 48px;

  /* Border Radius */
  --radius-sm:   6px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-pill: 999px;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-micro:  11px;
  --font-size-caption: 12px;
  --font-size-body:   14px;
  --font-size-body-lg: 16px;
  --font-size-h3:     17px;
  --font-size-h2:     20px;
  --font-size-h1:     28px;
  --font-size-kpi:    32px;

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-normal: 250ms ease;
}

/* =============================================================================
   9. DARK MODE — Override variables only. Components just work.
   ============================================================================= */
html[data-theme="dark"] {
  --color-bg-page:         #0F172A;
  --color-bg-card:         #1E293B;
  --color-bg-sidebar:      #0D1B30;
  --color-bg-topbar:       #1E293B;
  --color-bg-sidebar-item-hover: rgba(255,255,255,0.07);

  --color-text-primary:    #F1F5F9;
  --color-text-secondary:  #94A3B8;
  --color-text-muted:      #64748B;

  --color-border:          #334155;
  --color-input-bg:        #0F172A;
  --color-input-border:    #475569;

  --color-table-header-bg: #162032;
  --color-table-stripe:    #162032;
  --color-table-hover:     #1A2F47;

  --color-skeleton:        #334155;
  --color-skeleton-shine:  #3D4F65;

  --color-badge-success-bg: rgba(22,163,74,0.2);
  --color-badge-warning-bg: rgba(217,119,6,0.2);
  --color-badge-danger-bg:  rgba(220,38,38,0.2);
  --color-badge-info-bg:    rgba(124,58,237,0.2);
  --color-badge-neutral-bg: rgba(100,116,139,0.2);

  --shadow-card:     0 1px 3px rgba(0,0,0,0.3);
  --shadow-modal:    0 20px 60px rgba(0,0,0,0.5);
  --shadow-dropdown: 0 4px 20px rgba(0,0,0,0.4);
}

/* =============================================================================
   2. RESET & BASE STYLES
   ============================================================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  color: var(--color-text-primary);
  background-color: var(--color-bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a {
  color: var(--color-brand);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

ul, ol { list-style: none; }

button { cursor: pointer; font-family: inherit; }

input, select, textarea {
  font-family: inherit;
  font-size: var(--font-size-body);
}

/* =============================================================================
   3. LAYOUT — Application Shell
   ============================================================================= */

/* The outer wrapper that contains everything */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ----- SIDEBAR ----- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: var(--sidebar-width);
  background: var(--color-bg-sidebar);
  display: flex;
  flex-direction: column;
  transition: width var(--transition-normal);
  z-index: 100;
  overflow: hidden;
}

.sidebar.collapsed {
  width: var(--sidebar-width-collapsed);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-md);
  min-height: var(--topbar-height);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.sidebar-logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
}

.sidebar-logo-text {
  font-weight: 700;
  font-size: 16px;
  color: #FFFFFF;
  white-space: nowrap;
  overflow: hidden;
}

.sidebar.collapsed .sidebar-logo-text { display: none; }

/* Navigation */
.sidebar-nav {
  flex: 1;
  padding: var(--spacing-sm) 0;
  overflow-y: auto;
  overflow-x: hidden;
}

.nav-section-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.3);
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-xs);
  white-space: nowrap;
  overflow: hidden;
}

.sidebar.collapsed .nav-section-label { opacity: 0; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px var(--spacing-md);
  color: var(--color-text-sidebar);
  font-size: var(--font-size-body);
  font-weight: 500;
  border-radius: 0;
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
  text-decoration: none;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item:hover {
  background: var(--color-bg-sidebar-item-hover);
  color: #FFFFFF;
  text-decoration: none;
}

.nav-item.active {
  background: var(--color-bg-sidebar-item-active);
  color: var(--color-text-sidebar-active);
}

.nav-item svg, .nav-item .nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.8;
}
.nav-item.active svg, .nav-item.active .nav-icon { opacity: 1; }

.nav-item-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar.collapsed .nav-item-label { display: none; }
.sidebar.collapsed .nav-item { justify-content: center; padding: 10px; }

/* Sidebar collapse toggle at the bottom */
.sidebar-footer {
  padding: var(--spacing-sm) 0;
  border-top: 1px solid rgba(255,255,255,0.07);
}

.sidebar-collapse-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px var(--spacing-md);
  color: var(--color-text-sidebar);
  font-size: var(--font-size-body);
  font-weight: 500;
  background: none;
  border: none;
  width: 100%;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.sidebar-collapse-btn:hover { background: var(--color-bg-sidebar-item-hover); }
.sidebar.collapsed .sidebar-collapse-btn { justify-content: center; }
.sidebar.collapsed .sidebar-collapse-btn span { display: none; }

/* ----- TOP BAR ----- */
.topbar {
  position: fixed;
  top: 0;
  left: var(--sidebar-width);
  right: 0;
  height: var(--topbar-height);
  background: var(--color-bg-topbar);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0 var(--spacing-lg);
  z-index: 90;
  transition: left var(--transition-normal);
}

.sidebar.collapsed ~ .main-wrapper .topbar,
.sidebar.collapsed ~ .topbar {
  left: var(--sidebar-width-collapsed);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 0;
}

.topbar-hamburger {
  display: none;
  padding: var(--spacing-sm);
  background: none;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  border-radius: var(--radius-sm);
}
.topbar-hamburger:hover { background: var(--color-border); }

/* Breadcrumbs */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-caption);
  color: var(--color-text-secondary);
}
.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-brand); }
.breadcrumb-separator { color: var(--color-text-muted); }
.breadcrumb-current { color: var(--color-text-primary); font-weight: 600; }

/* Global search */
.global-search {
  position: relative;
  flex: 1;
  max-width: 400px;
}

.global-search-input {
  width: 100%;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 0 var(--spacing-md) 0 36px;
  font-size: var(--font-size-body);
  background: var(--color-bg-page);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast);
}
.global-search-input:focus {
  outline: none;
  border-color: var(--color-brand);
  background: var(--color-bg-card);
}
.global-search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.search-results-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-dropdown);
  z-index: 200;
  max-height: 400px;
  overflow-y: auto;
  display: none;
}
.search-results-dropdown.visible { display: block; }

.search-result-group-label {
  font-size: var(--font-size-caption);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  padding: 10px var(--spacing-md) 4px;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 10px var(--spacing-md);
  cursor: pointer;
  text-decoration: none;
  color: var(--color-text-primary);
  transition: background var(--transition-fast);
}
.search-result-item:hover { background: var(--color-table-hover); text-decoration: none; }
.search-result-name { font-weight: 600; font-size: var(--font-size-body); }
.search-result-meta { font-size: var(--font-size-caption); color: var(--color-text-secondary); }

.search-no-results {
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-body);
}

/* Topbar right section */
.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

/* Notification bell */
.notification-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.notification-btn:hover {
  background: var(--color-border);
  color: var(--color-text-primary);
}

.notif-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 16px;
  height: 16px;
  background: var(--color-danger);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 3px;
  line-height: 1;
}

/* Notification dropdown */
.notification-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 360px;
  max-height: 420px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-dropdown);
  z-index: 200;
  overflow: hidden;
  display: none;
  flex-direction: column;
}
.notification-panel.visible { display: flex; }

.notification-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  font-weight: 700;
  font-size: var(--font-size-body);
}

.notification-panel-body {
  flex: 1;
  overflow-y: auto;
}

.notification-item {
  display: flex;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  align-items: flex-start;
}
.notification-item:last-child { border-bottom: none; }

.notification-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.notification-icon.warning { background: var(--color-badge-warning-bg); color: var(--color-warning); }
.notification-icon.danger  { background: var(--color-badge-danger-bg);  color: var(--color-danger);  }
.notification-icon.info    { background: var(--color-badge-info-bg);    color: var(--color-info);    }

.notification-body { flex: 1; min-width: 0; }
.notification-msg  { font-size: var(--font-size-body); font-weight: 500; line-height: 1.4; }
.notification-time { font-size: var(--font-size-caption); color: var(--color-text-muted); margin-top: 2px; }

.notification-dismiss {
  padding: 2px 4px;
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  flex-shrink: 0;
}
.notification-dismiss:hover { background: var(--color-border); }

.notification-panel-footer {
  padding: var(--spacing-sm) var(--spacing-md);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.notification-empty {
  padding: var(--spacing-xl);
  text-align: center;
  color: var(--color-text-secondary);
}

/* User avatar menu */
.user-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 6px 10px;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  background: none;
  color: var(--color-text-primary);
  transition: background var(--transition-fast);
}
.user-menu:hover { background: var(--color-border); }

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-pill);
  background: var(--color-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-caption);
  flex-shrink: 0;
}

.user-name  { font-weight: 600; font-size: var(--font-size-body); }
.user-role  { font-size: var(--font-size-caption); color: var(--color-text-secondary); }

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast);
}
.theme-toggle:hover { background: var(--color-border); color: var(--color-text-primary); }

/* ----- MAIN CONTENT AREA ----- */
.main-wrapper {
  margin-left: var(--sidebar-width);
  padding-top: var(--topbar-height);
  min-height: 100vh;
  flex: 1;
  transition: margin-left var(--transition-normal);
  min-width: 0;
}

.sidebar.collapsed ~ .main-wrapper {
  margin-left: var(--sidebar-width-collapsed);
}

.main-content {
  padding: var(--spacing-lg);
  max-width: var(--content-max-width);
  margin: 0 auto;
}

/* Page header (title + actions) */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.page-title {
  font-size: var(--font-size-h1);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.2;
}

.page-subtitle {
  font-size: var(--font-size-body);
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.page-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* =============================================================================
   4. TYPOGRAPHY
   ============================================================================= */
h1 { font-size: var(--font-size-h1); font-weight: 700; }
h2 { font-size: var(--font-size-h2); font-weight: 600; }
h3 { font-size: var(--font-size-h3); font-weight: 600; }

.text-primary   { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted     { color: var(--color-text-muted); }
.text-success   { color: var(--color-success); }
.text-warning   { color: var(--color-warning); }
.text-danger    { color: var(--color-danger); }
.text-brand     { color: var(--color-brand); }

.text-sm  { font-size: var(--font-size-caption); }
.text-xs  { font-size: var(--font-size-micro); }
.text-lg  { font-size: var(--font-size-body-lg); }
.text-xl  { font-size: var(--font-size-h3); }

.font-bold   { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.text-right  { text-align: right; }
.text-center { text-align: center; }

/* Currency/monetary values — always bold */
.money {
  font-size: var(--font-size-body-lg);
  font-weight: 700;
  color: var(--color-text-primary);
}
.money-sm {
  font-size: var(--font-size-body);
  font-weight: 700;
}

/* =============================================================================
   5. COMPONENTS
   ============================================================================= */

/* ----- CARDS ----- */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-card);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.card-title {
  font-size: var(--font-size-h3);
  font-weight: 600;
  color: var(--color-text-primary);
}

.card-body { }

/* KPI Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.kpi-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.kpi-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 24px;
}
.kpi-icon.brand   { background: rgba(26,111,181,0.12); color: var(--color-brand); }
.kpi-icon.success { background: var(--color-badge-success-bg); color: var(--color-success); }
.kpi-icon.warning { background: var(--color-badge-warning-bg); color: var(--color-warning); }
.kpi-icon.danger  { background: var(--color-badge-danger-bg);  color: var(--color-danger); }
.kpi-icon.info    { background: var(--color-badge-info-bg);    color: var(--color-info); }

.kpi-body { flex: 1; min-width: 0; }
.kpi-label { font-size: var(--font-size-caption); font-weight: 500; color: var(--color-text-secondary); text-transform: uppercase; letter-spacing: 0.05em; }
.kpi-value {
  font-size: var(--font-size-kpi);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.2;
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.kpi-sub { font-size: var(--font-size-caption); color: var(--color-text-secondary); margin-top: 2px; }

/* ----- BUTTONS ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 40px;
  padding: 0 var(--spacing-md);
  font-size: var(--font-size-body);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  min-width: 80px;
  font-family: inherit;
  line-height: 1;
  position: relative;
}

.btn:disabled, .btn[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary button — Brand Blue */
.btn-primary {
  background: var(--color-brand);
  color: #FFFFFF;
  border-color: var(--color-brand);
}
.btn-primary:hover {
  background: var(--color-brand-hover);
  border-color: var(--color-brand-hover);
  text-decoration: none;
  color: #fff;
}

/* Secondary button — outlined */
.btn-secondary {
  background: transparent;
  color: var(--color-brand);
  border-color: var(--color-brand);
}
.btn-secondary:hover {
  background: rgba(26,111,181,0.06);
  text-decoration: none;
}

/* Danger button — for void/delete actions */
.btn-danger {
  background: var(--color-danger);
  color: #FFFFFF;
  border-color: var(--color-danger);
}
.btn-danger:hover {
  background: #B91C1C;
  border-color: #B91C1C;
  text-decoration: none;
  color: #fff;
}

/* Ghost button — low priority */
.btn-ghost {
  background: transparent;
  color: var(--color-brand);
  border-color: transparent;
}
.btn-ghost:hover {
  background: rgba(26,111,181,0.06);
  text-decoration: none;
}

/* Success button */
.btn-success {
  background: var(--color-success);
  color: #FFFFFF;
  border-color: var(--color-success);
}
.btn-success:hover { background: #15803D; }

/* Small button variant */
.btn-sm {
  height: 32px;
  padding: 0 10px;
  font-size: var(--font-size-caption);
  min-width: 60px;
}

/* Icon-only button (40x40) */
.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  min-width: 40px;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}
.btn-icon:hover {
  background: var(--color-border);
  color: var(--color-text-primary);
}

/* Loading state: show spinner, hide text */
.btn.loading .btn-text { visibility: hidden; }
.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
.btn-secondary.loading::after,
.btn-ghost.loading::after {
  border-color: rgba(26,111,181,0.3);
  border-top-color: var(--color-brand);
}

/* Button group */
.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* ----- FORM INPUTS ----- */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-size: var(--font-size-caption);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

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

.form-control {
  display: block;
  width: 100%;
  height: 42px;
  padding: 0 12px;
  font-size: var(--font-size-body);
  color: var(--color-text-primary);
  background: var(--color-input-bg);
  border: 1.5px solid var(--color-input-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  -webkit-appearance: none;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(26,111,181,0.12);
}

.form-control.is-invalid {
  border-color: var(--color-border-error);
  box-shadow: none;
}

.form-control.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(220,38,38,0.12);
}

.form-control:disabled {
  background: var(--color-bg-page);
  opacity: 0.7;
  cursor: not-allowed;
}

textarea.form-control {
  height: auto;
  padding: 10px 12px;
  resize: vertical;
  min-height: 80px;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24'%3E%3Cpath fill='%236B7280' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 36px;
  cursor: pointer;
}

.form-error {
  display: block;
  margin-top: 4px;
  font-size: var(--font-size-caption);
  color: var(--color-danger);
  font-weight: 500;
}

.form-hint {
  display: block;
  margin-top: 4px;
  font-size: var(--font-size-caption);
  color: var(--color-text-muted);
}

/* Form row (two or more fields side by side on desktop) */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

/* Input with prefix/suffix (for currency amounts) */
.input-group {
  position: relative;
  display: flex;
}

.input-prefix, .input-suffix {
  display: flex;
  align-items: center;
  padding: 0 12px;
  background: var(--color-bg-page);
  border: 1.5px solid var(--color-input-border);
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: var(--font-size-body);
  white-space: nowrap;
  flex-shrink: 0;
}

.input-prefix {
  border-right: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-suffix {
  border-left: none;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.input-group .form-control {
  border-radius: 0;
}

.input-group .form-control:first-child { border-radius: var(--radius-md) 0 0 var(--radius-md); }
.input-group .form-control:last-child  { border-radius: 0 var(--radius-md) var(--radius-md) 0; }

/* ----- TABLES ----- */
.table-wrapper {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.table-toolbar {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.table-toolbar-search {
  flex: 1;
  min-width: 200px;
  max-width: 360px;
}

.table-toolbar-filters {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.table-container {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table thead {
  background: var(--color-table-header-bg);
}

.data-table th {
  padding: 10px var(--spacing-md);
  font-size: var(--font-size-caption);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
  text-align: left;
  white-space: nowrap;
  border-bottom: 2px solid var(--color-border);
}

.data-table th.text-right,
.data-table td.text-right { text-align: right; }

.data-table td {
  padding: 14px var(--spacing-md);
  font-size: var(--font-size-body);
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
  min-height: 52px;
}

.data-table tbody tr:last-child td { border-bottom: none; }

.data-table tbody tr:nth-child(even) td {
  background: var(--color-table-stripe);
}

.data-table tbody tr:hover td {
  background: var(--color-table-hover);
}

/* Row actions (Edit, Delete, etc.) */
.row-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: flex-end;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.pagination-info {
  font-size: var(--font-size-caption);
  color: var(--color-text-secondary);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  font-size: var(--font-size-caption);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.page-btn:hover { background: var(--color-border); }
.page-btn.active {
  background: var(--color-brand);
  border-color: var(--color-brand);
  color: #fff;
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ----- STATUS BADGES ----- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-micro);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1;
  white-space: nowrap;
}

.badge-success { background: var(--color-badge-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-badge-warning-bg); color: var(--color-warning); }
.badge-danger  { background: var(--color-badge-danger-bg);  color: var(--color-danger); }
.badge-info    { background: var(--color-badge-info-bg);    color: var(--color-info); }
.badge-neutral { background: var(--color-badge-neutral-bg); color: var(--color-text-secondary); }
.badge-brand   { background: rgba(26,111,181,0.12); color: var(--color-brand); }

/* ----- MODALS ----- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-backdrop.visible {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-backdrop.visible .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text-primary);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: 20px;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.modal-close:hover { background: var(--color-border); }

.modal-body {
  padding: var(--spacing-lg);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

/* ----- TOAST NOTIFICATIONS ----- */
.toast-container {
  position: fixed;
  top: calc(var(--topbar-height) + var(--spacing-md));
  right: var(--spacing-md);
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px var(--spacing-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-dropdown);
  min-width: 280px;
  max-width: 420px;
  pointer-events: all;
  transform: translateX(120%);
  transition: transform var(--transition-normal);
  border-left: 4px solid var(--color-border);
}

.toast.visible { transform: translateX(0); }
.toast.success { border-left-color: var(--color-success); }
.toast.error   { border-left-color: var(--color-danger); }
.toast.warning { border-left-color: var(--color-warning); }
.toast.info    { border-left-color: var(--color-brand); }

.toast-icon { font-size: 20px; flex-shrink: 0; }
.toast-content { flex: 1; min-width: 0; }
.toast-title   { font-weight: 700; font-size: var(--font-size-body); }
.toast-message { font-size: var(--font-size-caption); color: var(--color-text-secondary); }

.toast-close {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 18px;
  padding: 0 4px;
  flex-shrink: 0;
}

/* ----- ERROR ALERT COMPONENT ----- */
.error-alert {
  padding: var(--spacing-md);
  background: rgba(220,38,38,0.06);
  border: 1px solid rgba(220,38,38,0.3);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.error-alert-title {
  font-weight: 700;
  color: var(--color-danger);
  margin-bottom: 4px;
}

.error-alert-reason,
.error-alert-action {
  font-size: var(--font-size-body);
  color: var(--color-text-primary);
  margin-top: 2px;
}

.error-alert-action { color: var(--color-text-secondary); }

/* Success alert */
.success-alert {
  padding: var(--spacing-md);
  background: rgba(22,163,74,0.08);
  border: 1px solid rgba(22,163,74,0.3);
  border-radius: var(--radius-md);
  color: var(--color-success);
  font-weight: 600;
}

/* Warning alert */
.warning-alert {
  padding: var(--spacing-md);
  background: rgba(217,119,6,0.08);
  border: 1px solid rgba(217,119,6,0.3);
  border-radius: var(--radius-md);
  color: var(--color-warning);
  font-weight: 600;
}

/* Info alert */
.info-alert {
  padding: var(--spacing-md);
  background: rgba(26,111,181,0.08);
  border: 1px solid rgba(26,111,181,0.3);
  border-radius: var(--radius-md);
  color: var(--color-brand);
  font-weight: 600;
}

/* =============================================================================
   6. LOADING STATES — Skeleton Screens
   ============================================================================= */

/* The shimmer animation — a gradient that sweeps from left to right */
@keyframes shimmer {
  0%   { background-position: -500px 0; }
  100% { background-position: 500px 0; }
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-skeleton) 25%,
    var(--color-skeleton-shine) 50%,
    var(--color-skeleton) 75%
  );
  background-size: 1000px 100%;
  animation: shimmer 1.5s infinite linear;
  border-radius: var(--radius-sm);
}

/* Skeleton shapes */
.skel-text      { height: 14px; border-radius: 4px; margin: 4px 0; }
.skel-title     { height: 28px; border-radius: 4px; margin: 4px 0; }
.skel-btn       { height: 40px; border-radius: var(--radius-md); }
.skel-rect      { border-radius: var(--radius-lg); }
.skel-circle    { border-radius: 50%; }
.skel-kpi-value { height: 36px; width: 60%; border-radius: 4px; }
.skel-kpi-label { height: 12px; width: 80%; border-radius: 4px; margin-top: var(--spacing-sm); }

/* Skeleton table row */
.skel-table-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 14px var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

/* Spinner for button loading state */
@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(26,111,181,0.2);
  border-top-color: var(--color-brand);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.spinner-sm {
  width: 16px;
  height: 16px;
}

/* Full-page loading overlay */
.page-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  color: var(--color-text-secondary);
  flex-direction: column;
  gap: var(--spacing-md);
}

/* =============================================================================
   7. UTILITY CLASSES
   ============================================================================= */
.d-flex       { display: flex; }
.d-none       { display: none !important; }
.d-block      { display: block; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm       { gap: var(--spacing-sm); }
.gap-md       { gap: var(--spacing-md); }
.flex-1       { flex: 1; }
.w-full       { width: 100%; }
.mt-sm        { margin-top: var(--spacing-sm); }
.mt-md        { margin-top: var(--spacing-md); }
.mt-lg        { margin-top: var(--spacing-lg); }
.mb-sm        { margin-bottom: var(--spacing-sm); }
.mb-md        { margin-bottom: var(--spacing-md); }
.mb-lg        { margin-bottom: var(--spacing-lg); }
.p-md         { padding: var(--spacing-md); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Divider */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-md) 0;
}

/* Empty state */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  text-align: center;
  color: var(--color-text-secondary);
}
.empty-state-icon   { font-size: 48px; margin-bottom: var(--spacing-md); opacity: 0.4; }
.empty-state-title  { font-size: var(--font-size-h3); font-weight: 700; color: var(--color-text-primary); margin-bottom: var(--spacing-sm); }
.empty-state-text   { font-size: var(--font-size-body); max-width: 320px; }
.empty-state-action { margin-top: var(--spacing-lg); }

/* Quick action shortcuts */
.quick-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
}

.quick-action-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 8px 14px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--font-size-body);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}
.quick-action-btn:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
  background: rgba(26,111,181,0.04);
  text-decoration: none;
}

/* Date range selector */
.date-range-selector {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.date-range-btn {
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  color: var(--color-text-secondary);
  font-size: var(--font-size-caption);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.date-range-btn:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
}
.date-range-btn.active {
  background: var(--color-brand);
  border-color: var(--color-brand);
  color: #fff;
}

/* Bottom navigation bar (mobile only) */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  z-index: 100;
  align-items: center;
  justify-content: space-around;
  padding-bottom: env(safe-area-inset-bottom);
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  flex: 1;
  padding: 4px;
  color: var(--color-text-secondary);
  font-size: 10px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  background: none;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.bottom-nav-item.active { color: var(--color-brand); }
.bottom-nav-item svg { width: 22px; height: 22px; }

/* Mobile drawer backdrop */
.mobile-drawer-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
}
.mobile-drawer-backdrop.visible { display: block; }

/* =============================================================================
   8. RESPONSIVE — MOBILE FIRST
   ============================================================================= */

/* ------ TABLET (640px and up) ------ */
@media (min-width: 640px) {
  .main-content {
    padding: var(--spacing-md);
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ------ DESKTOP (1024px and up) ------ */
@media (min-width: 1024px) {
  .main-content {
    padding: var(--spacing-lg);
  }

  .kpi-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .topbar-hamburger { display: none; }
}

/* ------ MOBILE (below 768px) ------ */
@media (max-width: 767px) {
  /* Hide sidebar, show hamburger */
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-normal), width var(--transition-normal);
  }

  .sidebar.mobile-open {
    transform: translateX(0);
    width: 280px;
  }

  .topbar {
    left: 0 !important;
  }

  .topbar-hamburger { display: flex; }

  .main-wrapper {
    margin-left: 0 !important;
    padding-bottom: 60px; /* Space for bottom nav */
  }

  .main-content {
    padding: 12px;
  }

  /* Show bottom nav on mobile */
  .bottom-nav { display: flex; }

  /* KPI cards: single column on very small screens */
  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .kpi-card { padding: var(--spacing-md); }
  .kpi-value { font-size: 24px; }

  /* Tables: transform rows into stacked cards */
  .table-container.mobile-cards table.data-table,
  .table-container.mobile-cards thead,
  .table-container.mobile-cards tbody,
  .table-container.mobile-cards th,
  .table-container.mobile-cards td,
  .table-container.mobile-cards tr {
    display: block;
  }

  .table-container.mobile-cards thead { display: none; }

  .table-container.mobile-cards tbody tr {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .table-container.mobile-cards tbody tr:hover { background: var(--color-bg-card); }

  .table-container.mobile-cards td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    border: none;
    min-height: unset;
  }

  .table-container.mobile-cards td::before {
    content: attr(data-label);
    font-size: var(--font-size-caption);
    font-weight: 700;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    flex-shrink: 0;
    margin-right: var(--spacing-sm);
  }

  .table-container.mobile-cards td:last-child {
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
    margin-top: 4px;
    justify-content: flex-end;
  }

  /* Full-width buttons on mobile */
  .page-actions .btn { flex: 1; justify-content: center; }
  .page-header { flex-direction: column; align-items: stretch; }
  .page-actions { justify-content: stretch; }

  /* Modals go full-screen on mobile */
  .modal {
    max-width: 100%;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    max-height: 95vh;
  }
  .modal-backdrop { align-items: flex-end; padding: 0; }

  /* Form rows become single column */
  .form-row { grid-template-columns: 1fr; }

  /* Notification panel goes full width */
  .notification-panel { width: calc(100vw - var(--spacing-md) * 2); right: var(--spacing-sm); }

  /* Page title smaller on mobile */
  .page-title { font-size: 22px; }

  /* Quick actions scroll horizontally */
  .quick-actions {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: var(--spacing-sm);
    -webkit-overflow-scrolling: touch;
  }
  .quick-action-btn { flex-shrink: 0; }
}

/* Very small screens (below 380px) */
@media (max-width: 380px) {
  .main-content { padding: 8px; }
  .card { padding: var(--spacing-md); }
  .kpi-card { gap: 10px; }
  .kpi-icon { width: 40px; height: 40px; }
  .page-title { font-size: 20px; }
}

/* =============================================================================
   10. PRINT STYLES
   ============================================================================= */
@media print {
  .sidebar,
  .topbar,
  .bottom-nav,
  .toast-container,
  .btn,
  .table-toolbar,
  .pagination,
  .page-actions { display: none !important; }

  .main-wrapper { margin-left: 0 !important; padding-top: 0 !important; }
  .main-content { padding: 0 !important; max-width: none !important; }

  body { background: white; color: black; }

  .card { border: 1px solid #ccc; box-shadow: none; }
}

/* =============================================================================
   ANIMATIONS
   ============================================================================= */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in { animation: fadeIn 0.25s ease forwards; }

/* =============================================================================
   TOPBAR LOGO — Responsive display for all devices
   ============================================================================= */

/* Topbar logo container */
.topbar-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 var(--spacing-sm) 0 -var(--spacing-sm);
  flex-shrink: 0;
}

.topbar-logo img {
  max-height: 40px;
  max-width: 160px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.08));
}

/* Responsive display utilities */
.d-md-flex {
  display: none;
}

@media (min-width: 768px) {
  .d-md-flex {
    display: flex;
  }
}

/* Mobile: hide topbar logo on small screens */
@media (max-width: 767px) {
  .topbar-logo {
    display: none !important;
  }

  /* Show logo in sidebar on mobile */
  .sidebar-logo {
    flex-wrap: wrap;
    justify-content: center;
  }

  .sidebar-logo-text {
    width: 100%;
    text-align: center;
    margin-top: var(--spacing-xs);
  }

  .sidebar.mobile-open .sidebar-logo-img {
    width: 40px;
    height: 40px;
  }
}

/* Tablet: show topbar logo normally */
@media (min-width: 768px) and (max-width: 1023px) {
  .topbar-logo img {
    max-height: 36px;
    max-width: 140px;
  }
}

/* Desktop: show topbar logo with full width */
@media (min-width: 1024px) {
  .topbar-logo img {
    max-height: 40px;
    max-width: 160px;
  }
}

/* Dark mode: adjust logo styling */
html[data-theme="dark"] .topbar-logo img {
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.3));
  opacity: 0.95;
}