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

:root {
  --primary-color: #4f46e5;
  --primary-hover: #4338ca;
  --secondary-color: #10b981;
  --bg-color: #f8fafc;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
  --hover-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  margin-bottom: 80px;
  -webkit-font-smoothing: antialiased;
}

/* Typography Enhancements */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  letter-spacing: -0.025em;
}

/* Premium Card Styles */
.card {
  border: none !important;
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: #ffffff;
  overflow: hidden;
}

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

.card-header {
  background-color: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  font-weight: 600;
  padding: 1.25rem 1.5rem;
}

.card-body {
  padding: 1.5rem;
}

/* Modern Button Styling */
.btn {
  border-radius: 8px;
  padding: 0.5rem 1rem;
  font-weight: 500;
  transition: all 0.2s ease;
  letter-spacing: 0.01em;
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.2);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.3);
  transform: translateY(-1px);
}

/* Navbar Enhancements */
.navbar {
  background: rgba(255, 255, 255, 0.8) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05) !important;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
  padding: 1rem 0;
}

.navbar-brand {
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--primary-color) !important;
}

.nav-link {
  font-weight: 500;
  color: var(--text-muted) !important;
  transition: color 0.2s ease;
  padding: 0.5rem 1rem !important;
  border-radius: 6px;
}

.nav-link:hover {
  color: var(--primary-color) !important;
  background-color: rgba(79, 70, 229, 0.05);
}

/* Form Controls */
.form-control,
.form-select {
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  padding: 0.6rem 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(79, 70, 229, 0.15);
}

/* Utilities */
.text-muted {
  color: var(--text-muted) !important;
}

.bg-white-glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
}

/* Custom Gradients for Dashboard Cards */
.bg-gradient-primary {
  background: linear-gradient(135deg, #4f46e5 0%, #3b82f6 100%);
}

.bg-gradient-success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.bg-gradient-warning {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.bg-gradient-info {
  background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
}

/* Sidebar Styles */
.sidebar {
  width: 260px;
  height: 100vh;
  position: sticky;
  top: 0;
  overflow-y: auto;
  background: #ffffff;
  border-right: 1px solid rgba(0, 0, 0, 0.05);
  z-index: 1040;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar .nav-link {
  font-weight: 500;
  color: var(--text-muted) !important;
  transition: all 0.2s ease;
  padding: 0.75rem 1.25rem !important;
  border-radius: 8px;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
  color: var(--primary-color) !important;
  background-color: rgba(79, 70, 229, 0.05);
  transform: translateX(4px);
}

.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1030;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

@media (max-width: 991.98px) {
  .sidebar {
    position: fixed;
    left: 0;
    transform: translateX(-100%);
    box-shadow: 10px 0 15px -3px rgba(0, 0, 0, 0.1);
  }

  .sidebar.show {
    transform: translateX(0);
  }

  .sidebar-overlay.show {
    display: block;
    opacity: 1;
  }
}