/* ==========================================================================
   WAKAZA LEDGER — Modern, Elegant & Ultra-Responsive Design System
   Optimized for PC (Desktop) and Mobile (HP)
   ========================================================================== */

:root {
  /* Core Theme Variables (Overridable by brand theme) */
  --bg: #0b0f19;
  --bg-subtle: #111827;
  --card: #151d30;
  --card-hover: #1c263e;
  --card-active: #222e4b;
  --border: #243049;
  --border-light: #334366;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  /* Brand Accents */
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-light: rgba(59, 130, 246, 0.15);
  --accent-border: rgba(59, 130, 246, 0.3);
  
  /* Status Colors */
  --green: #10b981;
  --green-light: rgba(16, 185, 129, 0.15);
  --green-border: rgba(16, 185, 129, 0.3);
  --red: #f43f5e;
  --red-light: rgba(244, 63, 94, 0.15);
  --red-border: rgba(244, 63, 94, 0.3);
  --yellow: #f59e0b;
  --yellow-light: rgba(245, 158, 11, 0.15);
  --yellow-border: rgba(245, 158, 11, 0.3);
  --purple: #8b5cf6;
  --purple-light: rgba(139, 92, 246, 0.15);
  --purple-border: rgba(139, 92, 246, 0.3);

  /* Dimensions & Spacing */
  --sidebar-width: 250px;
  --topbar-height: 64px;
  --bottom-nav-height: 64px;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  
  /* Shadows & Transitions */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14.5px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  text-decoration: none;
  opacity: 0.9;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border-light);
}

/* ==========================================================================
   Main App Layout (PC & Mobile Grid)
   ========================================================================== */

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-layout {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

/* Sidebar (Desktop) */
.app-sidebar {
  width: var(--sidebar-width);
  background: var(--bg-subtle);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 40;
  transition: var(--transition);
}

.sidebar-header {
  height: var(--topbar-height);
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}

.brand-badge-logo {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  flex-shrink: 0;
}

.brand-info-title {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-info-sub {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.nav-section-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  padding: 0 12px;
  margin-bottom: 6px;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  list-style: none;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius);
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.92rem;
  transition: var(--transition);
}

.nav-item a:hover {
  background: var(--card);
  color: var(--text);
}

.nav-item a.active {
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.35);
}

.nav-icon {
  font-size: 1.15rem;
  line-height: 1;
  width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 0, 0, 0.15);
}

.user-profile-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--card);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  flex-shrink: 0;
}

.user-details {
  overflow: hidden;
  line-height: 1.2;
}

.user-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role-badge {
  font-size: 0.7rem;
  color: var(--accent);
  font-weight: 700;
}

/* Main Content Area */
.app-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  min-height: 100dvh;
  width: calc(100% - var(--sidebar-width));
  max-width: calc(100% - var(--sidebar-width));
  display: flex;
  flex-direction: column;
  background: var(--bg);
  overflow-x: hidden;
}

/* Topbar */
.app-topbar {
  height: var(--topbar-height);
  background: rgba(17, 24, 39, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(16px, 2vw, 28px);
  position: sticky;
  top: 0;
  z-index: 30;
  width: 100%;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-heading {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.02em;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Horizontal Quick-Access Navigation Bar */
.app-horizontal-nav {
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
  padding: 6px clamp(12px, 1.8vw, 24px);
  position: sticky;
  top: var(--topbar-height);
  z-index: 25;
  width: 100%;
}

.horizontal-nav-scroll {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  max-width: 1400px;
  margin: 0 auto;
}

.horizontal-nav-scroll a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  background: transparent;
  border: 1px solid transparent;
  transition: var(--transition);
  flex-shrink: 0;
}

.horizontal-nav-scroll a:hover {
  background: var(--card);
  color: var(--text);
  border-color: var(--border);
}

.horizontal-nav-scroll a.active {
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

/* Mobile Topbar & Hamburger (Mobile Only) */
.mobile-topbar {
  display: none;
}

/* Main Container — Auto-Fit Screen with clean max boundaries on PC */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 24px 48px 24px;
  box-sizing: border-box;
}

/* Fallback support for older nav structure */
nav {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  white-space: nowrap;
}
nav a {
  padding: 6px 14px;
  border-radius: var(--radius);
  color: var(--text-muted);
  font-weight: 500;
}
nav a.active {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 10px;
}

/* Responsive Auto-Fit Grid System */
.grid {
  display: grid;
  gap: clamp(10px, 1.2vw, 16px);
  width: 100%;
}
.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); }

/* ==========================================================================
   Component: Cards & Surfaces
   ========================================================================== */

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-light);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 10px;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-subtitle {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: 2px;
}

/* Stat KPI Cards */
.stat {
  text-align: center;
}
.stat .num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
}
.stat .label {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent);
  border-radius: 4px 0 0 4px;
}

.stat-card.success::after { background: var(--green); }
.stat-card.warning::after { background: var(--yellow); }
.stat-card.danger::after { background: var(--red); }
.stat-card.purple::after { background: var(--purple); }

.stat-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.stat-card.success .stat-icon { background: var(--green-light); color: var(--green); }
.stat-card.warning .stat-icon { background: var(--yellow-light); color: var(--yellow); }
.stat-card.danger .stat-icon { background: var(--red-light); color: var(--red); }
.stat-card.purple .stat-icon { background: var(--purple-light); color: var(--purple); }

.stat-content {
  flex: 1;
}

.stat-value {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

/* ==========================================================================
   Component: Buttons & Interactive Elements
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #ffffff;
  border: 1px solid transparent;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.2;
  white-space: nowrap;
}

.btn:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

.btn:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--card-hover);
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover {
  background: var(--card-active);
  border-color: var(--border-light);
  box-shadow: var(--shadow-sm);
}

.btn-success {
  background: var(--green);
  color: #ffffff;
}
.btn-success:hover {
  background: #059669;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.btn-danger {
  background: var(--red);
  color: #ffffff;
}
.btn-danger:hover {
  background: #e11d48;
  box-shadow: 0 4px 12px rgba(244, 63, 94, 0.25);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: 6px;
}

.btn-xs {
  padding: 4px 8px;
  font-size: 0.75rem;
  border-radius: 4px;
}

.btn-icon {
  padding: 8px;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Component: Form Controls & Inputs
   ========================================================================== */

.form-group {
  margin-bottom: 14px;
}

.form-row {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.form-row > * {
  flex: 1;
  min-width: 140px;
}

label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

input, select, textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

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

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11.5l-5-5h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* Search Bar */
.search-box {
  position: relative;
  max-width: 320px;
  width: 100%;
}

.search-box input {
  padding-left: 36px;
}

.search-box::before {
  content: '🔍';
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.85rem;
  color: var(--text-dim);
  pointer-events: none;
}

/* Filter Chips */
.filter-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 16px;
}

.chip {
  padding: 6px 14px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.chip:hover {
  border-color: var(--border-light);
  color: var(--text);
}

.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

/* ==========================================================================
   Component: Status Badges & Pills
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.2;
}

.badge-green, .badge-success {
  background: var(--green-light);
  color: #34d399;
  border: 1px solid var(--green-border);
}

.badge-red, .badge-danger {
  background: var(--red-light);
  color: #fb7185;
  border: 1px solid var(--red-border);
}

.badge-yellow, .badge-warning {
  background: var(--yellow-light);
  color: #fbbf24;
  border: 1px solid var(--yellow-border);
}

.badge-blue, .badge-info {
  background: var(--accent-light);
  color: #60a5fa;
  border: 1px solid var(--accent-border);
}

.badge-purple {
  background: var(--purple-light);
  color: #c084fc;
  border: 1px solid var(--purple-border);
}

.badge-muted {
  background: rgba(148, 163, 184, 0.1);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ==========================================================================
   Component: Tables (Desktop & Responsive)
   ========================================================================== */

.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th {
  background: rgba(11, 15, 25, 0.6);
  color: var(--text-dim);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: 0.9rem;
  vertical-align: middle;
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

tr:last-child td {
  border-bottom: none;
}

/* Mobile Card View for Tables */
.mobile-card-list {
  display: none;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-icon {
  font-size: 2.8rem;
  margin-bottom: 12px;
  opacity: 0.7;
}

.empty-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.empty-desc {
  font-size: 0.88rem;
  color: var(--text-dim);
  max-width: 320px;
  margin: 0 auto 18px auto;
}

/* ==========================================================================
   Component: Modals & Dialogs
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.modal-backdrop.show {
  display: flex;
  opacity: 1;
}

.modal-dialog {
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  max-width: min(94vw, 740px);
  width: 100%;
  max-height: min(92vh, 92dvh);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: scale(0.96);
  transition: transform 0.2s ease;
  overflow: hidden;
}

.modal-backdrop.show .modal-dialog {
  transform: scale(1);
}

.modal-header {
  padding: clamp(12px, 1.5vw, 18px) clamp(16px, 2vw, 24px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

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

.modal-body {
  padding: clamp(14px, 1.8vw, 24px);
  overflow-y: auto;
  flex: 1;
  -webkit-overflow-scrolling: touch;
}

.modal-footer {
  padding: clamp(12px, 1.5vw, 16px) clamp(16px, 2vw, 24px);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  background: rgba(0, 0, 0, 0.15);
  flex-wrap: wrap;
}

/* ==========================================================================
   Component: Toasts & Notifications
   ========================================================================== */

#toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 280px;
  max-width: 400px;
  padding: 14px 18px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: toastSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transition: var(--transition);
}

.toast-ok, .toast-success {
  border-color: var(--green-border);
  background: #064e3b;
}

.toast-err, .toast-danger {
  border-color: var(--red-border);
  background: #881337;
}

.toast-info {
  border-color: var(--accent-border);
  background: #1e3a8a;
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateY(-12px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ==========================================================================
   Component: Bottom Navigation Bar (Mobile / HP Only)
   ========================================================================== */

.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--bottom-nav-height);
  background: rgba(17, 24, 39, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
  z-index: 50;
  grid-template-columns: repeat(5, 1fr);
  align-items: center;
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-dim);
  font-size: 0.72rem;
  font-weight: 600;
  gap: 3px;
  transition: var(--transition);
  text-decoration: none;
}

.mobile-nav-item .icon {
  font-size: 1.25rem;
  line-height: 1;
}

.mobile-nav-item.active {
  color: var(--accent);
}

/* Slide-in Mobile Drawer */
.mobile-drawer-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 90;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  background: var(--bg-subtle);
  border-right: 1px solid var(--border);
  z-index: 95;
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-drawer.open {
  transform: translateX(0);
}

.mobile-drawer-overlay.show {
  display: block;
}

/* ==========================================================================
   Login Page Styling (Ultra Clean & Sleek)
   ========================================================================== */

.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.1), transparent 60%),
              radial-gradient(circle at bottom left, rgba(139, 92, 246, 0.08), transparent 60%),
              var(--bg);
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-lg);
}

.login-logo-box {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.35);
}

.login-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.login-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 4px;
  margin-bottom: 24px;
}

/* ==========================================================================
   Responsive Breakpoints (Mobile, Tablet, Desktop)
   ========================================================================== */

@media (max-width: 900px) {
  .app-layout {
    display: flex !important;
    flex-direction: column !important;
    width: 100% !important;
    max-width: 100% !important;
    min-height: 100vh !important;
    overflow-x: hidden !important;
  }

  .app-sidebar {
    display: none !important;
  }
  
  .app-main {
    margin-left: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    flex: 1 0 auto !important;
    padding-bottom: calc(var(--bottom-nav-height) + 28px) !important;
    display: flex !important;
    flex-direction: column !important;
    overflow-x: hidden !important;
  }

  .app-topbar {
    display: none !important;
  }

  .mobile-topbar {
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    height: 58px;
    padding: 0 16px;
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 30;
    width: 100% !important;
  }

  .mobile-bottom-nav {
    display: grid !important;
  }

  .app-horizontal-nav {
    top: 58px !important;
    padding: 6px 12px !important;
  }

  .container {
    padding: 12px 12px 32px 12px !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px !important;
  }
  
  .grid-3 {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  .grid-2 {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  .form-row {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
  }

  .form-row > * {
    flex: 1 1 140px !important;
    min-width: 120px !important;
  }

  .card-header {
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 10px !important;
  }

  .search-box {
    min-width: 200px !important;
    flex: 1 !important;
  }

  .filter-chips {
    width: 100% !important;
    overflow-x: auto !important;
    flex-wrap: nowrap !important;
    padding-bottom: 4px !important;
    -webkit-overflow-scrolling: touch !important;
  }

  /* Always show full rich data tables with smooth touch scrolling */
  .table-responsive {
    display: block !important;
    width: 100% !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-sm) !important;
    margin-top: 8px !important;
  }
  
  .table-desktop-only {
    display: block !important;
  }
  
  .mobile-card-list {
    display: none !important;
  }

  #toast-container {
    top: 16px;
    right: 16px;
    left: 16px;
  }
  
  .toast {
    min-width: 0;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 6px !important;
  }

  .stat-card {
    padding: 10px 12px !important;
  }
  
  .stat-value {
    font-size: 1.25rem !important;
  }

  .stat-label {
    font-size: 0.72rem !important;
  }
}

/* Utility Helpers */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-end { display: flex; align-items: center; justify-content: flex-end; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--text-dim); }
.text-right { text-align: right; }
.font-bold { font-weight: 700; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ==========================================================================
   PRINT ENGINE & PAPER FORMATS (Thermal 58/80mm, Dot-Matrix, A5, A4)
   ========================================================================== */
#print-area {
  display: none;
}

@media print {
  html, body {
    background: #ffffff !important;
    color: #000000 !important;
    font-size: 12px !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  /* Hide entire web application UI during print */
  #app, .app-sidebar, .app-topbar, .mobile-topbar, .mobile-bottom-nav,
  .modal-overlay, #toast-container, .btn, .search-box, .filter-chips {
    display: none !important;
  }

  #print-area {
    display: block !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    background: #ffffff !important;
    color: #000000 !important;
    padding: 0 !important;
    margin: 0 !important;
    z-index: 999999 !important;
  }

  /* 1. Thermal Bluetooth / Mobile Kasir (58mm) */
  .receipt-58mm {
    width: 48mm !important;
    max-width: 48mm !important;
    margin: 0 auto !important;
    padding: 4px 2px !important;
    font-family: 'Courier New', Courier, monospace !important;
    font-size: 10px !important;
    line-height: 1.25 !important;
    color: #000 !important;
  }

  /* 2. POS Thermal Kasir Standar (80mm) */
  .receipt-80mm {
    width: 72mm !important;
    max-width: 72mm !important;
    margin: 0 auto !important;
    padding: 6px 4px !important;
    font-family: 'Courier New', Courier, monospace !important;
    font-size: 12px !important;
    line-height: 1.3 !important;
    color: #000 !important;
  }

  /* 3. Dot Matrix / Printer Pita Continuous NCR (9.5" x 5.5" / Wartel Half-Letter) */
  .receipt-dotmatrix {
    width: 100% !important;
    max-width: 215mm !important;
    margin: 0 auto !important;
    padding: 8px 12px !important;
    font-family: 'Courier New', Courier, monospace !important;
    font-size: 11.5px !important;
    line-height: 1.2 !important;
    letter-spacing: 0.05em !important;
    color: #000 !important;
  }

  /* 4. Standar A5 (Setengah A4 - 148 x 210mm) */
  .receipt-a5 {
    width: 100% !important;
    max-width: 148mm !important;
    margin: 0 auto !important;
    padding: 12px !important;
    font-family: system-ui, -apple-system, sans-serif !important;
    font-size: 11px !important;
    line-height: 1.35 !important;
    color: #000 !important;
  }

  /* 5. Standar A4 / Letter Resmi (210 x 297mm) */
  .receipt-a4 {
    width: 100% !important;
    max-width: 210mm !important;
    margin: 0 auto !important;
    padding: 20px 24px !important;
    font-family: system-ui, -apple-system, sans-serif !important;
    font-size: 12px !important;
    line-height: 1.4 !important;
    color: #000 !important;
  }
}