:root {
      --primary: #1a472a;
      --primary-light: #2d5e3d;
      --primary-dark: #0f2d18;
      --accent: #4a7c59;
      --gold: #b8860b;
      --white: #ffffff;
      --gray-50: #f8faf9;
      --gray-100: #f1f5f2;
      --gray-200: #e2e8e4;
      --gray-300: #cbd5ce;
      --gray-500: #6b7d70;
      --gray-700: #3d4a41;
      --gray-900: #1f2923;
      --shadow-light: 0 4px 6px -1px rgba(26, 71, 42, 0.1);
      --shadow-medium: 0 10px 15px -3px rgba(26, 71, 42, 0.1);
      --shadow-large: 0 20px 25px -5px rgba(26, 71, 42, 0.1);
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
        font-family: 'Inter', sans-serif;
        /* background: linear-gradient(135deg, var(--gray-50) 0%, #e8f5ea 100%); */
        background: linear-gradient(135deg, var(--gray-50) 0%, #e8f5ea 100%), 
                url("../images/bg-3.jpg");
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        background-blend-mode: overlay;
        background-attachment: fixed;
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--gray-900);
        line-height: 1.6;
    }
    
    .login-container {
      width: 100%;
      max-width: 500px;
      padding: 0 1rem;
      animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }
    
    .brand-section {
        margin-top: 8%;
      text-align: center;
      animation: fadeIn 0.8s ease-out 0.2s both;
      margin-bottom: 1.5rem;
    }
    
    .brand-logo {
      width: 120px;
      height: auto;
      filter: drop-shadow(var(--shadow-light));
    }
    
    .brand-title {
      font-weight: 700;
      font-size: 1.75rem;
      color: var(--primary);
      letter-spacing: -0.02em;
    }
    
    .brand-subtitle {
      color: var(--gray-500);
      font-size: 0.95rem;
      font-weight: 400;
    }
    
    .login-card {
      background: var(--white);
      border-radius: 20px;
      box-shadow: var(--shadow-large);
      border: 1px solid var(--gray-200);
      overflow: hidden;
      animation: fadeIn 0.8s ease-out 0.4s both;
      backdrop-filter: blur(10px);
    }
    
    .card-header {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
      color: var(--white);
      text-align: center;
      padding: 1.5rem 2rem;
      border: none;
      position: relative;
      overflow: hidden;
    }
    
    .card-header::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;
    }
    
    .card-header:hover::before {
      left: 100%;
    }
    
    .card-header h3 {
      font-weight: 600;
      margin: 0;
      font-size: 1.25rem;
      letter-spacing: -0.01em;
      position: relative;
      z-index: 1;
    }
    
    .card-body {
      padding: 2rem;
    }
    
    .form-label {
      font-weight: 500;
      color: var(--gray-700);
      margin-bottom: 0.5rem;
      font-size: 0.9rem;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    
    .form-control, .form-select {
      border-radius: 12px;
      border: 2px solid var(--gray-200);
      padding: 0.875rem 1rem;
      font-size: 1rem;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      background-color: var(--gray-50);
      position: relative;
    }
    
    .form-control:focus, .form-select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(26, 71, 42, 0.1);
      background-color: var(--white);
      transform: translateY(-1px);
    }
    
    .input-group-text {
      background: var(--primary);
      border: 2px solid var(--primary);
      color: var(--white);
      border-radius: 12px 0 0 12px;
      padding: 0.875rem 1rem;
      transition: all 0.3s ease;
    }
    
    .input-group .form-control {
      border-left: none;
      border-radius: 0 12px 12px 0;
    }
    
    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
      border: none;
      border-radius: 12px;
      padding: 1rem;
      font-weight: 600;
      font-size: 1rem;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      width: 100%;
      position: relative;
      overflow: hidden;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    
    .btn-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-primary:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-medium);
      background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    }
    
    .btn-primary:hover::before {
      left: 100%;
    }
    
    .btn-primary:active {
      transform: translateY(0);
    }
    
    .toggle-password {
      background: var(--gray-100);
      border: 2px solid var(--gray-200);
      color: var(--gray-500);
      border-radius: 0 12px 12px 0;
      border-left: none;
      transition: all 0.3s ease;
    }
    
    .toggle-password:hover {
      background: var(--primary);
      color: var(--white);
      border-color: var(--primary);
    }
    
    .btn-link {
      color: var(--primary);
      text-decoration: none;
      font-size: 0.9rem;
      font-weight: 500;
      transition: all 0.3s ease;
      position: relative;
    }
    
    .btn-link::after {
      content: '';
      position: absolute;
      width: 0;
      height: 2px;
      bottom: -2px;
      left: 50%;
      background-color: var(--primary);
      transition: all 0.3s ease;
      transform: translateX(-50%);
    }
    
    .btn-link:hover {
      color: var(--primary-dark);
    }
    
    .btn-link:hover::after {
      width: 100%;
    }
    
    .alert {
      border-radius: 12px;
      border: none;
      padding: 1rem 1.25rem;
      font-size: 0.9rem;
      font-weight: 500;
      animation: slideDown 0.3s ease-out;
    }
    
    .alert-danger {
      background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
      color: #dc2626;
      border-left: 4px solid #dc2626;
    }
    
    .alert-info {
      background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
      color: #0369a1;
      border-left: 4px solid #0369a1;
    }
    
    .form-check-input:checked {
      background-color: var(--primary);
      border-color: var(--primary);
    }
    
    .form-check-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 0.2rem rgba(26, 71, 42, 0.25);
    }
    
    .form-check-label {
      color: var(--gray-700);
      font-size: 0.9rem;
      font-weight: 500;
    }
    
    .copyright {
      text-align: center;
      margin-top: 2rem;
      color: var(--gray-500);
      font-size: 0.85rem;
      animation: fadeIn 1s ease-out 0.6s both;
    }
    
    /* Animations */
    @keyframes fadeIn {
      from { 
        opacity: 0; 
        transform: translateY(10px); 
      }
      to { 
        opacity: 1; 
        transform: translateY(0); 
      }
    }
    
    @keyframes slideUp {
      from { 
        opacity: 0; 
        transform: translateY(30px) scale(0.95); 
      }
      to { 
        opacity: 1; 
        transform: translateY(0) scale(1); 
      }
    }
    
    @keyframes slideDown {
      from { 
        opacity: 0; 
        transform: translateY(-10px); 
      }
      to { 
        opacity: 1; 
        transform: translateY(0); 
      }
    }
    
    /* Responsive Design */
    @media (max-width: 576px) {
      .login-container {
        max-width: 100%;
        padding: 0 1rem;
      }
      
      .card-body {
        padding: 1.5rem;
      }
      
      .brand-logo {
        width: 100px;
      }
      
      .brand-title {
        font-size: 1.5rem;
      }
      
      .card-header {
        padding: 1.25rem 1.5rem;
      }
    }
    
    @media (max-width: 375px) {
      .card-body {
        padding: 1.25rem;
      }
      
      .brand-section {
        margin-bottom: 1.5rem;
      }
    }
    
    @media (max-height: 700px) {
      body {
        padding: 1rem 0;
      }
      
      .brand-section {
        margin-bottom: 1.5rem;
      }
      
      .copyright {
        margin-top: 1.5rem;
      }
    }