@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Brand Colors */
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary-color: #f8fafc;
  --text-dark: #0f172a;
  --text-light: #64748b;
  --bg-main: #f1f5f9;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;

  /* Status Colors */
  --status-pending: #ef4444; /* Red */
  --status-pending-bg: #fef2f2;
  --status-awaiting: #f59e0b; /* Yellow */
  --status-awaiting-bg: #fffbeb;
  --status-approved: #10b981; /* Green */
  --status-approved-bg: #ecfdf5;

  /* Layout */
  --sidebar-width: 260px;
  --header-height: 70px;
  --border-radius: 12px;
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background-color: var(--bg-main);
  color: var(--text-dark);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* -----------------------------
   Layout Structure
----------------------------- */
.app-container {
  display: flex;
  width: 100%;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-card);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
  transition: var(--transition);
}

.sidebar-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 24px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
}

.sidebar-menu {
  flex: 1;
  padding: 24px 0;
  overflow-y: auto;
}

.menu-item {
  display: flex;
  align-items: center;
  padding: 12px 24px;
  color: var(--text-light);
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
  margin-bottom: 4px;
}

.menu-item:hover, .menu-item.active {
  background-color: var(--secondary-color);
  color: var(--primary-color);
  border-right: 3px solid var(--primary-color);
}

.menu-item i {
  margin-right: 12px;
  font-size: 1.25rem;
}

.sidebar-footer {
  padding: 24px;
  border-top: 1px solid var(--border-color);
}

.logout-btn {
  display: flex;
  align-items: center;
  color: var(--status-pending);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.logout-btn:hover {
  opacity: 0.8;
}

.logout-btn i {
  margin-right: 10px;
}

/* Main Content Area */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.top-header {
  height: var(--header-height);
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 90;
}

.header-title {
  font-size: 1.25rem;
  font-weight: 600;
}

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

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

.user-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.user-role {
  font-size: 0.8rem;
  color: var(--text-light);
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

/* Page Content */
.page-content {
  padding: 32px;
  flex: 1;
}

/* -----------------------------
   Components
----------------------------- */
/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.card {
  background-color: var(--bg-card);
  border-radius: var(--border-radius);
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.025);
}

.stat-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stat-info h3 {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 8px;
  font-weight: 500;
}

.stat-info .value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-dark);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.icon-blue { background: #eff6ff; color: #3b82f6; }
.icon-red { background: var(--status-pending-bg); color: var(--status-pending); }
.icon-yellow { background: var(--status-awaiting-bg); color: var(--status-awaiting); }
.icon-green { background: var(--status-approved-bg); color: var(--status-approved); }

/* Badges */
.badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.badge::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.badge-pending {
  background-color: var(--status-pending-bg);
  color: var(--status-pending);
}
.badge-pending::before { background-color: var(--status-pending); }

.badge-awaiting {
  background-color: var(--status-awaiting-bg);
  color: var(--status-awaiting);
}
.badge-awaiting::before { background-color: var(--status-awaiting); }

.badge-approved {
  background-color: var(--status-approved-bg);
  color: var(--status-approved);
}
.badge-approved::before { background-color: var(--status-approved); }

/* Tables */
.table-container {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  overflow-x: auto;
  margin-bottom: 32px;
}

.table-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.table-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
}

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

th, td {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
}

th {
  background-color: var(--secondary-color);
  color: var(--text-light);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

tbody tr {
  transition: background-color 0.2s;
}

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

/* Buttons */
.btn {
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

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

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

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-dark);
}

.btn-outline:hover {
  background-color: var(--secondary-color);
  border-color: var(--text-light);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.75rem;
}

.btn-success { background-color: var(--status-approved); color: white; }
.btn-success:hover { background-color: #059669; }
.btn-danger { background-color: var(--status-pending); color: white; }
.btn-danger:hover { background-color: #dc2626; }

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-dark);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.95rem;
  transition: var(--transition);
  background-color: var(--bg-card);
  color: var(--text-dark);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* -----------------------------
   Authentication Pages
----------------------------- */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-main);
  padding: 20px;
  width: 100%;
}

.auth-card {
  background: var(--bg-card);
  width: 100%;
  max-width: 440px;
  border-radius: 16px;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  padding: 40px;
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

.auth-header h1 {
  font-size: 1.75rem;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.auth-header p {
  color: var(--text-light);
  font-size: 0.95rem;
}

.auth-card .btn-primary {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  margin-top: 12px;
}

.auth-footer {
  margin-top: 24px;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-light);
}

.auth-footer a {
  color: var(--primary-color);
  font-weight: 500;
}

/* -----------------------------
   Specific Layouts
----------------------------- */
.grid-2-col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.info-list {
  list-style: none;
}

.info-list li {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--secondary-color);
}

.info-list li:last-child {
  border-bottom: none;
}

.info-label {
  color: var(--text-light);
  font-size: 0.9rem;
}

.info-value {
  font-weight: 600;
  color: var(--text-dark);
}

/* Responsive */
@media (max-width: 1024px) {
  .grid-2-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .main-content {
    margin-left: 0;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .table-container {
    overflow-x: auto;
  }
}