/* ====================================
   SDRCOOP Enhanced Modern Theme
   Dark Blue with Gradients & Modern Design
   ==================================== */

:root {
  /* Primary Color Palette - Dark Blue Theme */
  --primary-blue: #0f172a;
  --primary-blue-light: #1e293b;
  --primary-blue-lighter: #334155;
  --accent-blue: #3b82f6;
  --accent-blue-light: #60a5fa;
  --accent-blue-dark: #2563eb;
  
  /* Gradient Definitions */
  --gradient-primary: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  --gradient-accent: linear-gradient(135deg, #3b82f6 0%, #2563eb 50%, #1d4ed8 100%);
  --gradient-light: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  
  /* Text Colors */
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --text-white: #ffffff;
  
  /* Background Colors */
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --bg-gray: #f1f5f9;
  
  /* Border and Shadow */
  --border-light: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Animation */
  --transition-base: all 0.3s ease;
  --transition-fast: all 0.2s ease;
}

/* ====================================
   Global Styles
   ==================================== */

* {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-light);
  color: var(--text-primary);
  line-height: 1.6;
}

/* ====================================
   Enhanced Navigation
   ==================================== */

.modern-navbar {
  background: var(--gradient-primary) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem 0;
  transition: var(--transition-base);
}

.modern-navbar .navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--text-white) !important;
  display: flex;
  align-items: center;
  transition: var(--transition-fast);
}

.modern-navbar .navbar-brand:hover {
  transform: translateY(-2px);
}

.modern-navbar .navbar-brand img {
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.modern-navbar .navbar-brand img:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.modern-navbar .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
  padding: 0.7rem 1.2rem !important;
  border-radius: 8px;
  transition: var(--transition-fast);
  margin: 0 0.2rem;
}

.modern-navbar .nav-link:hover {
  color: var(--text-white) !important;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

.modern-navbar .dropdown-menu {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  box-shadow: var(--shadow-xl);
  padding: 0.5rem 0;
  margin-top: 0.5rem;
}

.modern-navbar .dropdown-item {
  padding: 0.7rem 1.5rem;
  transition: var(--transition-fast);
  border-radius: 8px;
  margin: 0 0.5rem;
}

.modern-navbar .dropdown-item:hover {
  background: var(--bg-gray);
  transform: translateX(4px);
}

.navbar-toggler {
  border: none;
  padding: 0.5rem;
}

.navbar-toggler:focus {
  box-shadow: none;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ====================================
   Enhanced Buttons
   ==================================== */

.btn-modern-primary {
  background: var(--gradient-accent);
  color: var(--text-white);
  border: none;
  padding: 0.8rem 2rem;
  border-radius: 12px;
  font-weight: 600;
  transition: var(--transition-base);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.btn-modern-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn-modern-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--text-white);
}

.btn-modern-primary:hover::before {
  left: 100%;
}

.btn-modern-secondary {
  background: var(--bg-white);
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
  padding: 0.8rem 2rem;
  border-radius: 12px;
  font-weight: 600;
  transition: var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.btn-modern-secondary:hover {
  background: var(--primary-blue);
  color: var(--text-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-modern-outline {
  background: transparent;
  color: var(--accent-blue);
  border: 2px solid var(--accent-blue);
  padding: 0.7rem 1.8rem;
  border-radius: 10px;
  font-weight: 500;
  transition: var(--transition-base);
}

.btn-modern-outline:hover {
  background: var(--accent-blue);
  color: var(--text-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ====================================
   Enhanced Cards
   ==================================== */

.modern-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  overflow: hidden;
}

.modern-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.modern-card-header {
  background: var(--gradient-primary);
  color: var(--text-white);
  padding: 1.5rem;
  border-bottom: none;
  font-weight: 600;
}

.modern-card-body {
  padding: 2rem;
}

.modern-card-footer {
  background: var(--bg-gray);
  padding: 1rem 2rem;
  border-top: 1px solid var(--border-light);
}

/* Glass Effect Cards */
.glass-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-base);
}

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

/* ====================================
   Enhanced Form Elements
   ==================================== */

.modern-form-control {
  border: 2px solid var(--border-light);
  border-radius: 12px;
  padding: 0.9rem 1.2rem;
  font-size: 1rem;
  transition: var(--transition-base);
  background: var(--bg-white);
}

.modern-form-control:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  transform: translateY(-1px);
}

.modern-form-label {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.modern-select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.75rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.5rem;
}

/* ====================================
   Enhanced Tables
   ==================================== */

.modern-table {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--bg-white);
}

.modern-table .table {
  margin-bottom: 0;
}

.modern-table .table thead th {
  background: var(--gradient-primary);
  color: var(--text-white);
  font-weight: 600;
  border: none;
  padding: 1.2rem 1rem;
}

.modern-table .table tbody tr {
  transition: var(--transition-fast);
}

.modern-table .table tbody tr:hover {
  background: var(--bg-gray);
  transform: scale(1.01);
}

.modern-table .table td {
  padding: 1rem;
  vertical-align: middle;
  border-color: var(--border-light);
}

/* ====================================
   Enhanced Alerts and Messages
   ==================================== */

.modern-alert {
  border: none;
  border-radius: 12px;
  padding: 1.2rem 1.5rem;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid;
}

.modern-alert-success {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  border-left-color: #22c55e;
  color: #166534;
}

.modern-alert-danger {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  border-left-color: #ef4444;
  color: #991b1b;
}

.modern-alert-warning {
  background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
  border-left-color: #f59e0b;
  color: #92400e;
}

.modern-alert-info {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-left-color: var(--accent-blue);
  color: var(--primary-blue);
}

/* ====================================
   Enhanced Modals
   ==================================== */

.modern-modal .modal-content {
  border: none;
  border-radius: 20px;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.modern-modal .modal-header {
  background: var(--gradient-primary);
  color: var(--text-white);
  border-bottom: none;
  padding: 1.5rem 2rem;
}

.modern-modal .modal-body {
  padding: 2rem;
}

.modern-modal .modal-footer {
  background: var(--bg-gray);
  border-top: 1px solid var(--border-light);
  padding: 1.5rem 2rem;
}

/* ====================================
   Utility Classes
   ==================================== */

.text-gradient-primary {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

.bg-gradient-primary {
  background: var(--gradient-primary) !important;
}

.bg-gradient-accent {
  background: var(--gradient-accent) !important;
}

.hover-scale {
  transition: var(--transition-base);
}

.hover-scale:hover {
  transform: scale(1.02);
}

.hover-lift {
  transition: var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.rounded-modern {
  border-radius: 16px !important;
}

.shadow-modern {
  box-shadow: var(--shadow-md) !important;
}

.shadow-modern-lg {
  box-shadow: var(--shadow-lg) !important;
}

/* Avatar and Profile Images */
.avatar-modern {
  width: 3rem;
  height: 3rem;
  border-radius: 12px;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.avatar-modern:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

.avatar-modern-sm {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 10px;
}

.avatar-modern-lg {
  width: 4rem;
  height: 4rem;
  border-radius: 16px;
}

/* ====================================
   Enhanced Badge and Pills
   ==================================== */

.badge-modern {
  padding: 0.5rem 1rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: none;
}

.badge-modern-primary {
  background: var(--gradient-accent);
  color: var(--text-white);
}

.badge-modern-secondary {
  background: var(--bg-gray);
  color: var(--text-secondary);
}

/* ====================================
   Loading and Animation States
   ==================================== */

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.spinner-modern {
  width: 3rem;
  height: 3rem;
  border: 3px solid rgba(59, 130, 246, 0.3);
  border-top: 3px solid var(--accent-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ====================================
   Responsive Design Enhancements
   ==================================== */

@media (max-width: 768px) {
  .modern-card-body {
    padding: 1.5rem;
  }
  
  .btn-modern-primary,
  .btn-modern-secondary {
    padding: 0.7rem 1.5rem;
    width: 100%;
    margin-bottom: 0.5rem;
  }
  
  .modern-navbar .nav-link {
    padding: 0.8rem 1rem !important;
  }
}

@media (max-width: 576px) {
  .modern-card-body {
    padding: 1rem;
  }
  
  .modern-form-control {
    padding: 0.8rem 1rem;
  }
}