:root {
  color-scheme: light;
  --ink: #0f172a;          /* Slate-900 */
  --muted: #475569;        /* Slate-600 */
  --line: #cbd5e1;         /* Slate-300 */
  --paper: #ffffff;
  --bg-primary: #f8fafc;   /* Slate-50 */
  --bg-secondary: #f1f5f9; /* Slate-100 */
  --brand: #2563eb;        /* Blue-600 */
  --brand-dark: #1d4ed8;   /* Blue-700 */
  --brand-light: #dbeafe;  /* Blue-100 */
  --danger: #e11d48;       /* Rose-600 */
  --danger-dark: #be123c;  /* Rose-700 */
  --success: #10b981;      /* Emerald-500 */
  --success-dark: #059669; /* Emerald-600 */
  --warning: #f59e0b;      /* Amber-500 */
  --warning-dark: #d97706; /* Amber-600 */
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --radius: 8px;
  --font: "Outfit", "Inter", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg-secondary);
  color: var(--ink);
  font-family: var(--font);
  min-height: 100vh;
  display: flex;
}

/* Auth Layout */
.login-shell {
  min-height: 100vh;
  width: 100%;
  display: grid;
  place-items: center;
  padding: 20px;
  background: radial-gradient(circle at top left, var(--brand-light), var(--bg-secondary));
}

.login-panel {
  width: min(430px, 100%);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}

.eyebrow {
  margin-bottom: 8px;
  color: var(--brand);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.login-panel h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 24px;
}

.login-form, .form-grid {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 14px;
  font-family: var(--font);
  font-size: 14px;
  background: #fff;
  color: var(--ink);
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

button, .logout, .btn {
  border: 0;
  border-radius: 6px;
  padding: 10px 16px;
  background: var(--brand);
  color: #fff;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  text-align: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background 0.2s, transform 0.1s;
}

button:hover, .logout:hover, .btn:hover {
  background: var(--brand-dark);
}

button:active, .logout:active, .btn:active {
  transform: scale(0.98);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--muted);
  border: 1px solid var(--line);
}

.btn-secondary:hover {
  background: #e2e8f0;
  color: var(--ink);
}

.btn-success {
  background: var(--success);
}
.btn-success:hover {
  background: var(--success-dark);
}

.btn-danger {
  background: var(--danger);
}
.btn-danger:hover {
  background: var(--danger-dark);
}

.btn-warning {
  background: var(--warning);
  color: #fff;
}
.btn-warning:hover {
  background: var(--warning-dark);
}

.alert {
  border-radius: 6px;
  padding: 12px 16px;
  background: #ecfdf5;
  color: var(--success-dark);
  border: 1px solid #a7f3d0;
  margin-bottom: 20px;
  font-size: 14px;
  font-weight: 500;
}

.alert.error {
  background: #fff1f2;
  color: var(--danger);
  border-color: #fecdd3;
}

/* Master Grid Layout for App */
.layout-container {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
  width: 260px;
  background: #0f172a; /* Deep Slate */
  color: #f8fafc;
  display: flex;
  flex-direction: column;
  border-right: 1px solid #1e293b;
  position: fixed;
  height: 100vh;
  z-index: 10;
  transition: transform 0.3s;
}

.sidebar-logo {
  padding: 24px;
  border-bottom: 1px solid #1e293b;
}

.sidebar-logo h1 {
  font-size: 20px;
  font-weight: 900;
  color: #fff;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-menu {
  flex: 1;
  padding: 16px;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
}

.sidebar-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  color: #94a3b8;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}

.sidebar-item a:hover {
  background: #1e293b;
  color: #fff;
}

.sidebar-item.active a {
  background: var(--brand);
  color: #fff;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid #1e293b;
}

/* Content Area */
.main-wrapper {
  margin-left: 260px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.top-nav {
  height: 70px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 32px;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
}

.top-nav h2 {
  font-size: 18px;
  font-weight: 700;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-user span {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
}

.main-content {
  padding: 32px;
  flex: 1;
  overflow-y: auto;
}

/* UI Cards and Elements */
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 16px;
  border-bottom: 2px solid var(--brand-light);
  padding-bottom: 8px;
}

/* Responsive Grid Form */
.grid-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  align-items: end;
}

.grid-buttons {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

/* Statistics Widgets */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-box {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.stat-box:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.stat-box span {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-box h3 {
  font-size: 26px;
  font-weight: 800;
  margin-top: 8px;
  color: var(--brand);
}

.stat-box.success h3 { color: var(--success); }
.stat-box.danger h3 { color: var(--danger); }
.stat-box.warning h3 { color: var(--warning); }

/* Table styling */
.table-container {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow-x: auto;
  margin-bottom: 24px;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}

thead {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--line);
}

th {
  padding: 14px 16px;
  font-weight: 700;
  color: var(--muted);
}

td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
  color: var(--ink);
}

tr:hover {
  background: var(--bg-primary);
}

/* Badge styles */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-open {
  background: var(--brand-light);
  color: var(--brand-dark);
}

.badge-closed {
  background: #d1fae5;
  color: var(--success-dark);
}

.badge-pending {
  background: #fef3c7;
  color: var(--warning-dark);
}

/* Specific styling for Ledger cards */
.deal-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}

.deal-header {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--bg-secondary);
  padding-bottom: 10px;
  margin-bottom: 10px;
}

.deal-header strong {
  font-size: 16px;
}

.deal-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  font-size: 13px;
  color: var(--muted);
}

.deal-details span strong {
  color: var(--ink);
}

.deal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
  border-top: 1px solid var(--bg-secondary);
  padding-top: 10px;
}

/* Tabs UI for Admin Reports */
.tabs-navigation {
  display: flex;
  gap: 8px;
  border-bottom: 2px solid var(--line);
  margin-bottom: 24px;
}

.tab-link {
  padding: 12px 20px;
  font-weight: 700;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: border-color 0.2s, color 0.2s;
}

.tab-link:hover {
  color: var(--brand);
}

.tab-link.active {
  color: var(--brand);
  border-bottom-color: var(--brand);
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .layout-container.menu-open .sidebar {
    transform: translateX(0);
  }
  
  .main-wrapper {
    margin-left: 0;
  }
  
  .top-nav {
    padding: 0 16px;
  }
  
  .main-content {
    padding: 16px;
  }
}

/* Autocomplete Dropdown Component */
.autocomplete-wrapper {
  position: relative;
  width: 100%;
}

.autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  max-height: 220px;
  overflow-y: auto;
  z-index: 10000;
  margin-top: 4px;
}

.autocomplete-item {
  padding: 10px 14px;
  font-size: 14px;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s;
  text-align: left;
}

.autocomplete-item:hover,
.autocomplete-item.highlighted {
  background: var(--bg-secondary);
  color: var(--brand);
}

.autocomplete-item strong {
  color: var(--brand);
}

/* Hide PWA Install elements if the app is already installed/running in standalone mode */
@media (display-mode: standalone) {
  .pwa-install-btn, .pwa-install-container {
    display: none !important;
  }
}