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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        /* Animated background elements */
        body::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
            animation: shimmer 8s ease-in-out infinite;
            pointer-events: none;
        }

        @keyframes shimmer {
            0%, 100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
            50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
        }

        .login-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 24px;
            padding: 48px 40px;
            width: 100%;
            max-width: 420px;
            box-shadow: 
                0 20px 25px -5px rgba(0, 0, 0, 0.1),
                0 10px 10px -5px rgba(0, 0, 0, 0.04),
                0 0 0 1px rgba(255, 255, 255, 0.05);
            position: relative;
            z-index: 1;
            animation: slideUp 0.6s ease-out;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .logo-container {
            text-align: center;
            margin-bottom: 40px;
        }

        .logo-container img {
            max-width: 160px;
            height: auto;
            filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
        }

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

        .welcome-text h1 {
            font-size: 28px;
            font-weight: 700;
            color: #1f2937;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }

        .welcome-text p {
            font-size: 16px;
            color: #6b7280;
            font-weight: 400;
        }

        .form-group {
            position: relative;
            margin-bottom: 24px;
        }

        .form-group i {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: #9ca3af;
            font-size: 18px;
            transition: color 0.3s ease;
        }

        .form-input {
            width: 100%;
            padding: 16px 16px 16px 48px;
            border: 2px solid #e5e7eb;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 400;
            background: #ffffff;
            color: #1f2937;
            transition: all 0.3s ease;
            outline: none;
        }

        .form-input:focus {
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
        }

        .form-input:focus + i {
            color: #3b82f6;
        }

        .form-input::placeholder {
            color: #9ca3af;
            font-weight: 400;
        }

        .login-button {
            width: 100%;
            padding: 16px;
            background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            margin-top: 8px;
        }

        .login-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
        }

        .login-button:active {
            transform: translateY(0);
        }

        .login-button:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            transform: none;
        }

        .loading-spinner {
            display: none;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .spinner {
            width: 24px;
            height: 24px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-top: 2px solid white;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

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

        .button-text {
            transition: opacity 0.3s ease;
        }

        .login-button:disabled .button-text {
            opacity: 0;
        }

        .login-button:disabled .loading-spinner {
            display: block;
        }

        /* Responsive design */
        @media (max-width: 480px) {
            .login-container {
                margin: 20px;
                padding: 32px 24px;
                border-radius: 20px;
            }

            .welcome-text h1 {
                font-size: 24px;
            }

            .form-input {
                padding: 14px 14px 14px 44px;
                font-size: 16px;
            }

            .form-group i {
                left: 14px;
                font-size: 16px;
            }

            .login-button {
                padding: 14px;
                font-size: 16px;
            }
        }

        /* Custom toastr styles */
        .toast-error {
            background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%) !important;
        }

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

        /* Focus visible for accessibility */
        .login-button:focus-visible {
            outline: 2px solid #3b82f6;
            outline-offset: 2px;
        }

        .form-input:focus-visible {
            outline: none;
        }