/* Mantine-inspired CSS Stylesheet */
:root {
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --bg-color: #f8f9fa;
  --panel-bg: #ffffff;
  --text-color: #212529;
  --text-dimmed: #868e96;
  --border-color: #e9ecef;
  --primary-color: #228be6;
  --primary-hover: #1c7ed6;
  --danger-color: #fa5252;
  --danger-bg: #fff5f5;
  --danger-border: #ffc9c9;
  --success-color: #40c057;
  --success-bg: #ebfbee;
  --success-border: #b2f2bb;
  --warning-color: #fab005;
  --warning-bg: #fff9db;
  --warning-border: #ffe066;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* App Layout */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
  width: 260px;
  background-color: var(--panel-bg);
  border-right: 1px solid var(--border-color);
  padding: 20px;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
}

.brand {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 30px;
  display: flex;
  align-items: center;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  transition: background-color 150ms ease;
}

.nav-link:hover {
  background-color: #f1f3f5;
}

.nav-link.active {
  background-color: #e7f5ff;
  color: var(--primary-color);
}

.sidebar-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 15px;
  margin-top: 15px;
}

.user-profile {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #e7f5ff;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}

.user-details {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}

.user-name {
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 11px;
  color: var(--text-dimmed);
}

.logout-btn {
  background: none;
  border: none;
  color: var(--danger-color);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logout-btn:hover {
  background-color: var(--danger-bg);
}

/* Main Content Area */
.main-content {
  flex: 1;
  margin-left: 260px;
  padding: 30px;
  min-height: 100vh;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
}

/* Cards & Papers */
.card {
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: 6px;
  font-size: 13px;
}

.form-label span {
  color: var(--danger-color);
}

.form-control {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ced4da;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-family);
  font-size: 14px;
  outline: none;
  transition: border-color 150ms ease;
}

.form-control:focus {
  border-color: var(--primary-color);
}

.form-control[readonly] {
  background-color: #f1f3f5;
  cursor: not-allowed;
}

.text-uppercase-input {
  text-transform: uppercase;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 150ms ease, border-color 150ms ease;
  font-family: var(--font-family);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary-color);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-success {
  background-color: var(--success-color);
  color: #fff;
}

.btn-success:hover {
  background-color: #37b24d;
}

.btn-light {
  background-color: #f1f3f5;
  color: #495057;
  border-color: #dee2e6;
}

.btn-light:hover {
  background-color: #e9ecef;
}

.btn-danger {
  background-color: var(--danger-color);
  color: #fff;
}

.btn-danger:hover {
  background-color: #e03131;
}

.btn-sm {
  padding: 4px 8px;
  font-size: 12px;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

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

.mantine-table th {
  border-bottom: 1px solid var(--border-color);
  padding: 12px 10px;
  font-weight: 600;
  color: var(--text-dimmed);
  font-size: 13px;
}

.mantine-table td {
  border-bottom: 1px solid var(--border-color);
  padding: 12px 10px;
  vertical-align: middle;
}

.mantine-table tr:hover td {
  background-color: #f8f9fa;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 700;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-blue {
  background-color: #e7f5ff;
  color: #228be6;
}

.badge-red {
  background-color: #fff5f5;
  color: #fa5252;
}

.badge-green {
  background-color: #ebfbee;
  color: #40c057;
}

.badge-orange {
  background-color: #fff9db;
  color: #fd7e14;
}

.badge-cyan {
  background-color: #e3fafc;
  color: #0c8599;
}

.badge-gray {
  background-color: #f1f3f5;
  color: #868e96;
}

/* Grid & Layout Utilities */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.flex-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.justify-end {
  justify-content: flex-end;
}

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

.color-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
  border: 1px solid rgba(0, 0, 0, 0.1);
  margin-right: 8px;
  vertical-align: middle;
}

/* Notifications / Alert box */
.alert {
  padding: 12px 16px;
  border-radius: var(--border-radius-sm);
  border: 1px solid transparent;
  margin-bottom: 20px;
  font-weight: 500;
}

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

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

/* Login Page Container */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background-color: var(--bg-color);
}

.login-box {
  width: 100%;
  max-width: 420px;
  padding: 30px;
}

.login-title {
  text-align: center;
  font-size: 26px;
  font-weight: 900;
  color: var(--primary-color);
  margin-bottom: 6px;
}

.login-subtitle {
  text-align: center;
  color: var(--text-dimmed);
  font-size: 13px;
  margin-bottom: 30px;
}

/* Modal styling (for add/edit dialogs) */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background-color: var(--panel-bg);
  border-radius: var(--border-radius-md);
  width: 100%;
  max-width: 500px;
  padding: 24px;
  box-shadow: var(--shadow-md);
  position: relative;
}

.modal-header {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-dimmed);
}

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

/* ==========================================================================
   Responsive Design & Media Queries
   ========================================================================== */

/* Mobile Header (Hidden by default on Desktop) */
.mobile-header {
  display: none;
}

.sidebar-overlay {
  display: none;
}

@media (max-width: 768px) {
  /* Layout Changes */
  .app-layout {
    flex-direction: column;
  }

  /* Fixed Top Bar on Mobile */
  .mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background-color: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0 16px;
    z-index: 990;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  }

  .mobile-brand {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 0.5px;
  }

  .menu-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: var(--border-radius-sm);
    transition: background-color 150ms ease;
  }

  .menu-toggle:hover {
    background-color: #f1f3f5;
  }

  /* Sidebar transition on Mobile */
  .sidebar {
    width: 260px;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    height: 100% !important;
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.15);
    border-right: none;
    padding-bottom: env(safe-area-inset-bottom, 20px);
  }

  /* Open Sidebar Class */
  body.sidebar-open .sidebar {
    transform: translateX(0);
  }

  /* Sidebar Dark Overlay screen */
  .sidebar-overlay {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(2px);
    z-index: 950;
    opacity: 0;
    visibility: hidden;
    transition: opacity 250ms ease, visibility 250ms ease;
  }

  body.sidebar-open .sidebar-overlay {
    opacity: 1;
    visibility: visible;
  }

  /* Adjust Main Content to fit mobile viewport */
  .main-content {
    margin-left: 0 !important;
    padding: 16px;
    margin-top: 56px;
    width: 100%;
    min-height: calc(100vh - 56px);
  }

  /* Responsive Grid layouts */
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Clear column spans on small screen grid items */
  .grid-2 > div,
  .grid-3 > div,
  .form-group[style*="grid-column"] {
    grid-column: auto !important;
  }

  /* Page Headers Stacking */
  .page-header {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    margin-bottom: 20px;
  }

  .page-header > * {
    width: 100%;
  }

  .page-header .btn {
    width: 100%;
    justify-content: center;
  }

  /* Card padding reduction */
  .card {
    padding: 16px;
  }

  /* Modal responsiveness */
  .modal-overlay {
    padding: 16px;
  }

  .modal-content {
    max-width: 100% !important;
    width: 100%;
    margin: 0;
    padding: 20px;
    max-height: 90vh;
    overflow-y: auto;
  }

  /* Flex row elements wrapping */
  .flex-row {
    flex-wrap: wrap;
    gap: 8px;
  }

  /* Calendar Table / Grid scrolling to avoid squishing */
  .calendar-grid {
    grid-template-columns: repeat(7, minmax(90px, 1fr));
    overflow-x: auto;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }

  /* Contract Page Styles on Mobile */
  .contract-container {
    padding: 20px !important;
  }

  .signature-row {
    flex-direction: column;
    gap: 30px;
    margin-top: 30px;
  }

  .signature-box {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .login-box {
    padding: 20px;
    margin: 16px;
  }
}